| File: | content/handlers/html/layout.c |
| Warning: | line 356, column 41 Division by zero |
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| 1 | /* | |||
| 2 | * Copyright 2005 Richard Wilson <info@tinct.net> | |||
| 3 | * Copyright 2006 James Bursa <bursa@users.sourceforge.net> | |||
| 4 | * Copyright 2008 Michael Drake <tlsa@netsurf-browser.org> | |||
| 5 | * Copyright 2003 Phil Mellor <monkeyson@users.sourceforge.net> | |||
| 6 | * | |||
| 7 | * This file is part of NetSurf, http://www.netsurf-browser.org/ | |||
| 8 | * | |||
| 9 | * NetSurf is free software; you can redistribute it and/or modify | |||
| 10 | * it under the terms of the GNU General Public License as published by | |||
| 11 | * the Free Software Foundation; version 2 of the License. | |||
| 12 | * | |||
| 13 | * NetSurf is distributed in the hope that it will be useful, | |||
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |||
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |||
| 16 | * GNU General Public License for more details. | |||
| 17 | * | |||
| 18 | * You should have received a copy of the GNU General Public License | |||
| 19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |||
| 20 | */ | |||
| 21 | ||||
| 22 | /** | |||
| 23 | * \file | |||
| 24 | * HTML layout implementation. | |||
| 25 | * | |||
| 26 | * Layout is carried out in two stages: | |||
| 27 | * | |||
| 28 | * 1. + calculation of minimum / maximum box widths, and | |||
| 29 | * + determination of whether block level boxes will have >zero height | |||
| 30 | * | |||
| 31 | * 2. + layout (position and dimensions) | |||
| 32 | * | |||
| 33 | * In most cases the functions for the two stages are a corresponding pair | |||
| 34 | * layout_minmax_X() and layout_X(). | |||
| 35 | */ | |||
| 36 | ||||
| 37 | #include <assert.h> | |||
| 38 | #include <limits.h> | |||
| 39 | #include <stdbool.h> | |||
| 40 | #include <stdio.h> | |||
| 41 | #include <stdlib.h> | |||
| 42 | #include <string.h> | |||
| 43 | #include <math.h> | |||
| 44 | #include <dom/dom.h> | |||
| 45 | ||||
| 46 | #include "utils/log.h" | |||
| 47 | #include "utils/talloc.h" | |||
| 48 | #include "utils/utils.h" | |||
| 49 | #include "utils/nsoption.h" | |||
| 50 | #include "utils/corestrings.h" | |||
| 51 | #include "utils/nsurl.h" | |||
| 52 | #include "netsurf/inttypes.h" | |||
| 53 | #include "netsurf/content.h" | |||
| 54 | #include "netsurf/browser_window.h" | |||
| 55 | #include "netsurf/layout.h" | |||
| 56 | #include "content/content.h" | |||
| 57 | #include "content/content_protected.h" | |||
| 58 | #include "css/utils.h" | |||
| 59 | #include "desktop/scrollbar.h" | |||
| 60 | #include "desktop/textarea.h" | |||
| 61 | ||||
| 62 | #include "html/html.h" | |||
| 63 | #include "html/html_save.h" | |||
| 64 | #include "html/private.h" | |||
| 65 | #include "html/box.h" | |||
| 66 | #include "html/box_inspect.h" | |||
| 67 | #include "html/font.h" | |||
| 68 | #include "html/form_internal.h" | |||
| 69 | #include "html/layout.h" | |||
| 70 | #include "html/layout_internal.h" | |||
| 71 | #include "html/table.h" | |||
| 72 | ||||
| 73 | /** Array of per-side access functions for computed style margins. */ | |||
| 74 | const css_len_func margin_funcs[4] = { | |||
| 75 | [TOP] = css_computed_margin_top, | |||
| 76 | [RIGHT] = css_computed_margin_right, | |||
| 77 | [BOTTOM] = css_computed_margin_bottom, | |||
| 78 | [LEFT] = css_computed_margin_left, | |||
| 79 | }; | |||
| 80 | ||||
| 81 | /** Array of per-side access functions for computed style paddings. */ | |||
| 82 | const css_len_func padding_funcs[4] = { | |||
| 83 | [TOP] = css_computed_padding_top, | |||
| 84 | [RIGHT] = css_computed_padding_right, | |||
| 85 | [BOTTOM] = css_computed_padding_bottom, | |||
| 86 | [LEFT] = css_computed_padding_left, | |||
| 87 | }; | |||
| 88 | ||||
| 89 | /** Array of per-side access functions for computed style border_widths. */ | |||
| 90 | const css_len_func border_width_funcs[4] = { | |||
| 91 | [TOP] = css_computed_border_top_width, | |||
| 92 | [RIGHT] = css_computed_border_right_width, | |||
| 93 | [BOTTOM] = css_computed_border_bottom_width, | |||
| 94 | [LEFT] = css_computed_border_left_width, | |||
| 95 | }; | |||
| 96 | ||||
| 97 | /** Array of per-side access functions for computed style border styles. */ | |||
| 98 | const css_border_style_func border_style_funcs[4] = { | |||
| 99 | [TOP] = css_computed_border_top_style, | |||
| 100 | [RIGHT] = css_computed_border_right_style, | |||
| 101 | [BOTTOM] = css_computed_border_bottom_style, | |||
| 102 | [LEFT] = css_computed_border_left_style, | |||
| 103 | }; | |||
| 104 | ||||
| 105 | /** Array of per-side access functions for computed style border colors. */ | |||
| 106 | const css_border_color_func border_color_funcs[4] = { | |||
| 107 | [TOP] = css_computed_border_top_color, | |||
| 108 | [RIGHT] = css_computed_border_right_color, | |||
| 109 | [BOTTOM] = css_computed_border_bottom_color, | |||
| 110 | [LEFT] = css_computed_border_left_color, | |||
| 111 | }; | |||
| 112 | ||||
| 113 | /* forward declaration to break cycles */ | |||
| 114 | static void layout_minmax_block( | |||
| 115 | struct box *block, | |||
| 116 | const struct gui_layout_table *font_func, | |||
| 117 | const html_content *content); | |||
| 118 | ||||
| 119 | /** | |||
| 120 | * Compute the size of replaced boxes with auto dimensions, according to | |||
| 121 | * content. | |||
| 122 | * | |||
| 123 | * \param box Box with object | |||
| 124 | * \param width Width value in px or AUTO. If AUTO, updated to value in px. | |||
| 125 | * \param height Height value in px or AUTO. If AUTO, updated to value in px. | |||
| 126 | * \param min_width Box's min width, as given by layout_find_dimensions. | |||
| 127 | * \param max_width Box's max width, as given by layout_find_dimensions. | |||
| 128 | * \param min_height Box's min height, as given by layout_find_dimensions. | |||
| 129 | * \param max_height Box's max height, as given by layout_find_dimensions. | |||
| 130 | * | |||
| 131 | * See CSS 2.1 sections 10.3 and 10.6. | |||
| 132 | */ | |||
| 133 | static void | |||
| 134 | layout_get_object_dimensions(struct box *box, | |||
| 135 | int *width, int *height, | |||
| 136 | int min_width, int max_width, | |||
| 137 | int min_height, int max_height) | |||
| 138 | { | |||
| 139 | assert(box->object != NULL)((box->object != ((void*)0)) ? (void) (0) : __assert_fail ( "box->object != NULL", "content/handlers/html/layout.c", 139 , __extension__ __PRETTY_FUNCTION__)); | |||
| 140 | assert(width != NULL && height != NULL)((width != ((void*)0) && height != ((void*)0)) ? (void ) (0) : __assert_fail ("width != NULL && height != NULL" , "content/handlers/html/layout.c", 140, __extension__ __PRETTY_FUNCTION__ )); | |||
| 141 | ||||
| 142 | if (*width == AUTO(-2147483647 -1) && *height == AUTO(-2147483647 -1)) { | |||
| 143 | /* No given dimensions */ | |||
| 144 | ||||
| 145 | bool_Bool scaled = false0; | |||
| 146 | int intrinsic_width = content_get_width(box->object); | |||
| 147 | int intrinsic_height = content_get_height(box->object); | |||
| 148 | ||||
| 149 | /* use intrinsic dimensions */ | |||
| 150 | *width = intrinsic_width; | |||
| 151 | *height = intrinsic_height; | |||
| 152 | ||||
| 153 | /* Deal with min/max-width first */ | |||
| 154 | if (min_width > 0 && min_width > *width) { | |||
| 155 | *width = min_width; | |||
| 156 | scaled = true1; | |||
| 157 | } | |||
| 158 | if (max_width >= 0 && max_width < *width) { | |||
| 159 | *width = max_width; | |||
| 160 | scaled = true1; | |||
| 161 | } | |||
| 162 | ||||
| 163 | if (scaled && (intrinsic_width != 0)) { | |||
| 164 | /* Update height */ | |||
| 165 | *height = (*width * intrinsic_height) / | |||
| 166 | intrinsic_width; | |||
| 167 | } | |||
| 168 | ||||
| 169 | scaled = false0; | |||
| 170 | /* Deal with min/max-height */ | |||
| 171 | if (min_height > 0 && min_height > *height) { | |||
| 172 | *height = min_height; | |||
| 173 | scaled = true1; | |||
| 174 | } | |||
| 175 | if (max_height >= 0 && max_height < *height) { | |||
| 176 | *height = max_height; | |||
| 177 | scaled = true1; | |||
| 178 | } | |||
| 179 | ||||
| 180 | if (scaled && (intrinsic_height != 0)) { | |||
| 181 | /* Update width */ | |||
| 182 | *width = (*height * intrinsic_width) / | |||
| 183 | intrinsic_height; | |||
| 184 | } | |||
| 185 | ||||
| 186 | } else if (*width == AUTO(-2147483647 -1)) { | |||
| 187 | /* Have given height; width is calculated from the given height | |||
| 188 | * and ratio of intrinsic dimensions */ | |||
| 189 | int intrinsic_width = content_get_width(box->object); | |||
| 190 | int intrinsic_height = content_get_height(box->object); | |||
| 191 | ||||
| 192 | if (intrinsic_height != 0) | |||
| 193 | *width = (*height * intrinsic_width) / | |||
| 194 | intrinsic_height; | |||
| 195 | else | |||
| 196 | *width = intrinsic_width; | |||
| 197 | ||||
| 198 | if (min_width > 0 && min_width > *width) | |||
| 199 | *width = min_width; | |||
| 200 | if (max_width >= 0 && max_width < *width) | |||
| 201 | *width = max_width; | |||
| 202 | ||||
| 203 | } else if (*height == AUTO(-2147483647 -1)) { | |||
| 204 | /* Have given width; height is calculated from the given width | |||
| 205 | * and ratio of intrinsic dimensions */ | |||
| 206 | int intrinsic_width = content_get_width(box->object); | |||
| 207 | int intrinsic_height = content_get_height(box->object); | |||
| 208 | ||||
| 209 | if (min_width > 0 && min_width > *width) | |||
| 210 | *width = min_width; | |||
| 211 | if (max_width >= 0 && max_width < *width) | |||
| 212 | *width = max_width; | |||
| 213 | ||||
| 214 | if (intrinsic_width != 0) | |||
| 215 | *height = (*width * intrinsic_height) / | |||
| 216 | intrinsic_width; | |||
| 217 | else | |||
| 218 | *height = intrinsic_height; | |||
| 219 | } | |||
| 220 | } | |||
| 221 | ||||
| 222 | ||||
| 223 | /** | |||
| 224 | * Calculate the text-indent length. | |||
| 225 | * | |||
| 226 | * \param style style of block | |||
| 227 | * \param width width of containing block | |||
| 228 | * \return length of indent | |||
| 229 | */ | |||
| 230 | static int layout_text_indent( | |||
| 231 | const css_unit_ctx *unit_len_ctx, | |||
| 232 | const css_computed_style *style, int width) | |||
| 233 | { | |||
| 234 | css_fixed value = 0; | |||
| 235 | css_unit unit = CSS_UNIT_PX; | |||
| 236 | ||||
| 237 | css_computed_text_indent(style, &value, &unit); | |||
| 238 | ||||
| 239 | if (unit == CSS_UNIT_PCT) { | |||
| 240 | return FPCT_OF_INT_TOINT(value, width)((((css_divide_fixed(((value * width)), (0x00019000)))) >> 10)); | |||
| 241 | } else { | |||
| 242 | return FIXTOINT(css_unit_len2device_px(style, unit_len_ctx,((css_unit_len2device_px(style, unit_len_ctx, value, unit)) >> 10) | |||
| 243 | value, unit))((css_unit_len2device_px(style, unit_len_ctx, value, unit)) >> 10); | |||
| 244 | } | |||
| 245 | } | |||
| 246 | ||||
| 247 | ||||
| 248 | /** | |||
| 249 | * Calculate minimum and maximum width of a table. | |||
| 250 | * | |||
| 251 | * \param table box of type TABLE | |||
| 252 | * \param font_func Font functions | |||
| 253 | * \param content The HTML content we are laying out. | |||
| 254 | * \post table->min_width and table->max_width filled in, | |||
| 255 | * 0 <= table->min_width <= table->max_width | |||
| 256 | */ | |||
| 257 | static void layout_minmax_table(struct box *table, | |||
| 258 | const struct gui_layout_table *font_func, | |||
| 259 | const html_content *content) | |||
| 260 | { | |||
| 261 | unsigned int i, j; | |||
| 262 | int width; | |||
| 263 | int border_spacing_h = 0; | |||
| 264 | int table_min = 0, table_max = 0; | |||
| 265 | int extra_fixed = 0; | |||
| 266 | float extra_frac = 0; | |||
| 267 | struct column *col; | |||
| 268 | struct box *row_group, *row, *cell; | |||
| 269 | ||||
| 270 | /* check if the widths have already been calculated */ | |||
| 271 | if (table->max_width != UNKNOWN_MAX_WIDTH2147483647) | |||
| ||||
| 272 | return; | |||
| 273 | ||||
| 274 | if (table_calculate_column_types(&content->unit_len_ctx, table) == false0) { | |||
| 275 | NSLOG(netsurf, ERROR,do { if (NSLOG_LEVEL_ERROR >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_ERROR, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 276, }; nslog__log(&_nslog_ctx , "Could not establish table column types."); } } while(0) | |||
| 276 | "Could not establish table column types.")do { if (NSLOG_LEVEL_ERROR >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_netsurf , NSLOG_LEVEL_ERROR, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 276, }; nslog__log(&_nslog_ctx , "Could not establish table column types."); } } while(0); | |||
| 277 | return; | |||
| 278 | } | |||
| 279 | col = table->col; | |||
| 280 | ||||
| 281 | /* start with 0 except for fixed-width columns */ | |||
| 282 | for (i = 0; i != table->columns; i++) { | |||
| 283 | if (col[i].type == COLUMN_WIDTH_FIXED) | |||
| 284 | col[i].min = col[i].max = col[i].width; | |||
| 285 | else | |||
| 286 | col[i].min = col[i].max = 0; | |||
| 287 | } | |||
| 288 | ||||
| 289 | /* border-spacing is used in the separated borders model */ | |||
| 290 | if (css_computed_border_collapse(table->style) == | |||
| 291 | CSS_BORDER_COLLAPSE_SEPARATE) { | |||
| 292 | css_fixed h = 0, v = 0; | |||
| 293 | css_unit hu = CSS_UNIT_PX, vu = CSS_UNIT_PX; | |||
| 294 | ||||
| 295 | css_computed_border_spacing(table->style, &h, &hu, &v, &vu); | |||
| 296 | ||||
| 297 | border_spacing_h = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( table->style, &content->unit_len_ctx , h, hu)) >> 10) | |||
| 298 | table->style,((css_unit_len2device_px( table->style, &content->unit_len_ctx , h, hu)) >> 10) | |||
| 299 | &content->unit_len_ctx,((css_unit_len2device_px( table->style, &content->unit_len_ctx , h, hu)) >> 10) | |||
| 300 | h, hu))((css_unit_len2device_px( table->style, &content->unit_len_ctx , h, hu)) >> 10); | |||
| 301 | } | |||
| 302 | ||||
| 303 | /* 1st pass: consider cells with colspan 1 only */ | |||
| 304 | for (row_group = table->children; row_group; row_group =row_group->next) | |||
| 305 | for (row = row_group->children; row; row = row->next) | |||
| 306 | for (cell = row->children; cell; cell = cell->next) { | |||
| 307 | assert(cell->type == BOX_TABLE_CELL)((cell->type == BOX_TABLE_CELL) ? (void) (0) : __assert_fail ("cell->type == BOX_TABLE_CELL", "content/handlers/html/layout.c" , 307, __extension__ __PRETTY_FUNCTION__)); | |||
| 308 | assert(cell->style)((cell->style) ? (void) (0) : __assert_fail ("cell->style" , "content/handlers/html/layout.c", 308, __extension__ __PRETTY_FUNCTION__ )); | |||
| 309 | /** TODO: Handle colspan="0" correctly. | |||
| 310 | * It's currently converted to 1 in box normaisation */ | |||
| 311 | assert(cell->columns != 0)((cell->columns != 0) ? (void) (0) : __assert_fail ("cell->columns != 0" , "content/handlers/html/layout.c", 311, __extension__ __PRETTY_FUNCTION__ )); | |||
| 312 | ||||
| 313 | if (cell->columns != 1) | |||
| 314 | continue; | |||
| 315 | ||||
| 316 | layout_minmax_block(cell, font_func, content); | |||
| 317 | i = cell->start_column; | |||
| 318 | ||||
| 319 | if (col[i].positioned) | |||
| 320 | continue; | |||
| 321 | ||||
| 322 | /* update column min, max widths using cell widths */ | |||
| 323 | if (col[i].min < cell->min_width) | |||
| 324 | col[i].min = cell->min_width; | |||
| 325 | if (col[i].max < cell->max_width) | |||
| 326 | col[i].max = cell->max_width; | |||
| 327 | } | |||
| 328 | ||||
| 329 | /* 2nd pass: cells which span multiple columns */ | |||
| 330 | for (row_group = table->children; row_group; row_group =row_group->next) | |||
| 331 | for (row = row_group->children; row; row = row->next) | |||
| 332 | for (cell = row->children; cell; cell = cell->next) { | |||
| 333 | unsigned int flexible_columns = 0; | |||
| 334 | int min = 0, max = 0, fixed_width = 0, extra; | |||
| 335 | ||||
| 336 | if (cell->columns
| |||
| 337 | continue; | |||
| 338 | ||||
| 339 | layout_minmax_block(cell, font_func, content); | |||
| 340 | i = cell->start_column; | |||
| 341 | ||||
| 342 | /* find min width so far of spanned columns, and count | |||
| 343 | * number of non-fixed spanned columns and total fixed width */ | |||
| 344 | for (j = 0; j != cell->columns; j++) { | |||
| 345 | min += col[i + j].min; | |||
| 346 | if (col[i + j].type == COLUMN_WIDTH_FIXED) | |||
| 347 | fixed_width += col[i + j].width; | |||
| 348 | else | |||
| 349 | flexible_columns++; | |||
| 350 | } | |||
| 351 | min += (cell->columns - 1) * border_spacing_h; | |||
| 352 | ||||
| 353 | /* distribute extra min to spanned columns */ | |||
| 354 | if (min < cell->min_width) { | |||
| 355 | if (flexible_columns
| |||
| 356 | extra = 1 + (cell->min_width - min) / | |||
| ||||
| 357 | cell->columns; | |||
| 358 | for (j = 0; j != cell->columns; j++) { | |||
| 359 | col[i + j].min += extra; | |||
| 360 | if (col[i + j].max < col[i + j].min) | |||
| 361 | col[i + j].max = col[i + j].min; | |||
| 362 | } | |||
| 363 | } else { | |||
| 364 | extra = 1 + (cell->min_width - min) / | |||
| 365 | flexible_columns; | |||
| 366 | for (j = 0; j != cell->columns; j++) { | |||
| 367 | if (col[i + j].type != | |||
| 368 | COLUMN_WIDTH_FIXED) { | |||
| 369 | col[i + j].min += extra; | |||
| 370 | if (col[i + j].max < | |||
| 371 | col[i + j].min) | |||
| 372 | col[i + j].max = | |||
| 373 | col[i + j].min; | |||
| 374 | } | |||
| 375 | } | |||
| 376 | } | |||
| 377 | } | |||
| 378 | ||||
| 379 | /* find max width so far of spanned columns */ | |||
| 380 | for (j = 0; j != cell->columns; j++) | |||
| 381 | max += col[i + j].max; | |||
| 382 | max += (cell->columns - 1) * border_spacing_h; | |||
| 383 | ||||
| 384 | /* distribute extra max to spanned columns */ | |||
| 385 | if (max < cell->max_width && flexible_columns) { | |||
| 386 | extra = 1 + (cell->max_width - max) / flexible_columns; | |||
| 387 | for (j = 0; j != cell->columns; j++) | |||
| 388 | if (col[i + j].type != COLUMN_WIDTH_FIXED) | |||
| 389 | col[i + j].max += extra; | |||
| 390 | } | |||
| 391 | } | |||
| 392 | ||||
| 393 | for (i = 0; i != table->columns; i++) { | |||
| 394 | if (col[i].max < col[i].min) { | |||
| 395 | box_dump(stderrstderr, table, 0, true1); | |||
| 396 | assert(0)((0) ? (void) (0) : __assert_fail ("0", "content/handlers/html/layout.c" , 396, __extension__ __PRETTY_FUNCTION__)); | |||
| 397 | } | |||
| 398 | table_min += col[i].min; | |||
| 399 | table_max += col[i].max; | |||
| 400 | } | |||
| 401 | ||||
| 402 | /* fixed width takes priority, unless it is too narrow */ | |||
| 403 | if (css_computed_width_px(table->style, &content->unit_len_ctx, | |||
| 404 | -1, &width) == CSS_WIDTH_SET) { | |||
| 405 | if (table_min < width) | |||
| 406 | table_min = width; | |||
| 407 | if (table_max < width) | |||
| 408 | table_max = width; | |||
| 409 | } | |||
| 410 | ||||
| 411 | /* add margins, border, padding to min, max widths */ | |||
| 412 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 413 | table->style, LEFT, true1, true1, true1, | |||
| 414 | &extra_fixed, &extra_frac); | |||
| 415 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 416 | table->style, RIGHT, true1, true1, true1, | |||
| 417 | &extra_fixed, &extra_frac); | |||
| 418 | if (extra_fixed < 0) | |||
| 419 | extra_fixed = 0; | |||
| 420 | if (extra_frac < 0) | |||
| 421 | extra_frac = 0; | |||
| 422 | if (1.0 <= extra_frac) | |||
| 423 | extra_frac = 0.9; | |||
| 424 | table->min_width = (table_min + extra_fixed) / (1.0 - extra_frac); | |||
| 425 | table->max_width = (table_max + extra_fixed) / (1.0 - extra_frac); | |||
| 426 | table->min_width += (table->columns + 1) * border_spacing_h; | |||
| 427 | table->max_width += (table->columns + 1) * border_spacing_h; | |||
| 428 | ||||
| 429 | assert(0 <= table->min_width && table->min_width <= table->max_width)((0 <= table->min_width && table->min_width <= table->max_width) ? (void) (0) : __assert_fail ("0 <= table->min_width && table->min_width <= table->max_width" , "content/handlers/html/layout.c", 429, __extension__ __PRETTY_FUNCTION__ )); | |||
| 430 | } | |||
| 431 | ||||
| 432 | /** | |||
| 433 | * Helper to check if a box has percentage max width. | |||
| 434 | * | |||
| 435 | * \param[in] b Box to check. | |||
| 436 | * \return true iff box has percnetage max width. | |||
| 437 | */ | |||
| 438 | static inline bool_Bool box_has_percentage_max_width(struct box *b) | |||
| 439 | { | |||
| 440 | css_unit unit = CSS_UNIT_PX; | |||
| 441 | enum css_max_width_e type; | |||
| 442 | css_fixed value = 0; | |||
| 443 | ||||
| 444 | assert(b != NULL)((b != ((void*)0)) ? (void) (0) : __assert_fail ("b != NULL", "content/handlers/html/layout.c", 444, __extension__ __PRETTY_FUNCTION__ )); | |||
| 445 | ||||
| 446 | type = css_computed_max_width(b->style, &value, &unit); | |||
| 447 | return ((type == CSS_MAX_WIDTH_SET) && (unit == CSS_UNIT_PCT)); | |||
| 448 | } | |||
| 449 | ||||
| 450 | /** | |||
| 451 | * Calculate minimum and maximum width of a line. | |||
| 452 | * | |||
| 453 | * \param first a box in an inline container | |||
| 454 | * \param line_min updated to minimum width of line starting at first | |||
| 455 | * \param line_max updated to maximum width of line starting at first | |||
| 456 | * \param first_line true iff this is the first line in the inline container | |||
| 457 | * \param line_has_height updated to true or false, depending on line | |||
| 458 | * \param font_func Font functions. | |||
| 459 | * \return first box in next line, or 0 if no more lines | |||
| 460 | * \post 0 <= *line_min <= *line_max | |||
| 461 | */ | |||
| 462 | static struct box * | |||
| 463 | layout_minmax_line(struct box *first, | |||
| 464 | int *line_min, | |||
| 465 | int *line_max, | |||
| 466 | bool_Bool first_line, | |||
| 467 | bool_Bool *line_has_height, | |||
| 468 | const struct gui_layout_table *font_func, | |||
| 469 | const html_content *content) | |||
| 470 | { | |||
| 471 | int min = 0, max = 0, width, height, fixed; | |||
| 472 | float frac; | |||
| 473 | size_t i, j; | |||
| 474 | struct box *b; | |||
| 475 | struct box *block; | |||
| 476 | plot_font_style_t fstyle; | |||
| 477 | bool_Bool no_wrap; | |||
| 478 | ||||
| 479 | assert(first->parent)((first->parent) ? (void) (0) : __assert_fail ("first->parent" , "content/handlers/html/layout.c", 479, __extension__ __PRETTY_FUNCTION__ )); | |||
| 480 | assert(first->parent->parent)((first->parent->parent) ? (void) (0) : __assert_fail ( "first->parent->parent", "content/handlers/html/layout.c" , 480, __extension__ __PRETTY_FUNCTION__)); | |||
| 481 | assert(first->parent->parent->style)((first->parent->parent->style) ? (void) (0) : __assert_fail ("first->parent->parent->style", "content/handlers/html/layout.c" , 481, __extension__ __PRETTY_FUNCTION__)); | |||
| 482 | ||||
| 483 | block = first->parent->parent; | |||
| 484 | no_wrap = (css_computed_white_space(block->style) == | |||
| 485 | CSS_WHITE_SPACE_NOWRAP || | |||
| 486 | css_computed_white_space(block->style) == | |||
| 487 | CSS_WHITE_SPACE_PRE); | |||
| 488 | ||||
| 489 | *line_has_height = false0; | |||
| 490 | ||||
| 491 | /* corresponds to the pass 1 loop in layout_line() */ | |||
| 492 | for (b = first; b; b = b->next) { | |||
| 493 | enum css_width_e wtype; | |||
| 494 | enum css_height_e htype; | |||
| 495 | enum css_box_sizing_e bs; | |||
| 496 | css_fixed value = 0; | |||
| 497 | css_unit unit = CSS_UNIT_PX; | |||
| 498 | ||||
| 499 | assert(lh__box_is_inline_content(b))((lh__box_is_inline_content(b)) ? (void) (0) : __assert_fail ( "lh__box_is_inline_content(b)", "content/handlers/html/layout.c" , 499, __extension__ __PRETTY_FUNCTION__)); | |||
| 500 | ||||
| 501 | NSLOG(layout, DEBUG, "%p: min %i, max %i", b, min, max)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 501, }; nslog__log(&_nslog_ctx , "%p: min %i, max %i", b, min, max); } } while(0); | |||
| 502 | ||||
| 503 | if (b->type == BOX_BR) { | |||
| 504 | b = b->next; | |||
| 505 | break; | |||
| 506 | } | |||
| 507 | ||||
| 508 | if (lh__box_is_float_box(b)) { | |||
| 509 | assert(b->children)((b->children) ? (void) (0) : __assert_fail ("b->children" , "content/handlers/html/layout.c", 509, __extension__ __PRETTY_FUNCTION__ )); | |||
| 510 | if (b->children->type == BOX_TABLE) | |||
| 511 | layout_minmax_table(b->children, font_func, | |||
| 512 | content); | |||
| 513 | else | |||
| 514 | layout_minmax_block(b->children, font_func, | |||
| 515 | content); | |||
| 516 | b->min_width = b->children->min_width; | |||
| 517 | b->max_width = b->children->max_width; | |||
| 518 | if (min < b->min_width) | |||
| 519 | min = b->min_width; | |||
| 520 | max += b->max_width; | |||
| 521 | continue; | |||
| 522 | } | |||
| 523 | ||||
| 524 | if (b->type == BOX_INLINE_BLOCK || b->type == BOX_INLINE_FLEX) { | |||
| 525 | layout_minmax_block(b, font_func, content); | |||
| 526 | if (min < b->min_width) | |||
| 527 | min = b->min_width; | |||
| 528 | max += b->max_width; | |||
| 529 | ||||
| 530 | if (b->flags & HAS_HEIGHT) | |||
| 531 | *line_has_height = true1; | |||
| 532 | continue; | |||
| 533 | } | |||
| 534 | ||||
| 535 | assert(b->style)((b->style) ? (void) (0) : __assert_fail ("b->style", "content/handlers/html/layout.c" , 535, __extension__ __PRETTY_FUNCTION__)); | |||
| 536 | font_plot_style_from_css(&content->unit_len_ctx, b->style, &fstyle); | |||
| 537 | ||||
| 538 | if (b->type == BOX_INLINE && !b->object && | |||
| 539 | !(b->flags & REPLACE_DIM) && | |||
| 540 | !(b->flags & IFRAME)) { | |||
| 541 | fixed = frac = 0; | |||
| 542 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 543 | b->style, LEFT, true1, true1, true1, | |||
| 544 | &fixed, &frac); | |||
| 545 | if (!b->inline_end) | |||
| 546 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 547 | b->style, RIGHT, | |||
| 548 | true1, true1, true1, | |||
| 549 | &fixed, &frac); | |||
| 550 | if (0 < fixed) | |||
| 551 | max += fixed; | |||
| 552 | *line_has_height = true1; | |||
| 553 | /* \todo update min width, consider fractional extra */ | |||
| 554 | } else if (b->type == BOX_INLINE_END) { | |||
| 555 | fixed = frac = 0; | |||
| 556 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 557 | b->inline_end->style, RIGHT, | |||
| 558 | true1, true1, true1, | |||
| 559 | &fixed, &frac); | |||
| 560 | if (0 < fixed) | |||
| 561 | max += fixed; | |||
| 562 | ||||
| 563 | if (b->next) { | |||
| 564 | if (b->space == UNKNOWN_WIDTH2147483647) { | |||
| 565 | font_func->width(&fstyle, " ", 1, | |||
| 566 | &b->space); | |||
| 567 | } | |||
| 568 | max += b->space; | |||
| 569 | } | |||
| 570 | ||||
| 571 | *line_has_height = true1; | |||
| 572 | continue; | |||
| 573 | } | |||
| 574 | ||||
| 575 | if (lh__box_is_replace(b) == false0) { | |||
| 576 | /* inline non-replaced, 10.3.1 and 10.6.1 */ | |||
| 577 | bool_Bool no_wrap_box; | |||
| 578 | if (!b->text) | |||
| 579 | continue; | |||
| 580 | ||||
| 581 | no_wrap_box = (css_computed_white_space(b->style) == | |||
| 582 | CSS_WHITE_SPACE_NOWRAP || | |||
| 583 | css_computed_white_space(b->style) == | |||
| 584 | CSS_WHITE_SPACE_PRE); | |||
| 585 | ||||
| 586 | if (b->width == UNKNOWN_WIDTH2147483647) { | |||
| 587 | /** \todo handle errors */ | |||
| 588 | ||||
| 589 | /* If it's a select element, we must use the | |||
| 590 | * width of the widest option text */ | |||
| 591 | if (b->parent->parent->gadget && | |||
| 592 | b->parent->parent->gadget->type | |||
| 593 | == GADGET_SELECT) { | |||
| 594 | int opt_maxwidth = 0; | |||
| 595 | struct form_option *o; | |||
| 596 | ||||
| 597 | for (o = b->parent->parent->gadget-> | |||
| 598 | data.select.items; o; | |||
| 599 | o = o->next) { | |||
| 600 | int opt_width; | |||
| 601 | font_func->width(&fstyle, | |||
| 602 | o->text, | |||
| 603 | strlen(o->text), | |||
| 604 | &opt_width); | |||
| 605 | ||||
| 606 | if (opt_maxwidth < opt_width) | |||
| 607 | opt_maxwidth =opt_width; | |||
| 608 | } | |||
| 609 | ||||
| 610 | b->width = opt_maxwidth; | |||
| 611 | if (nsoption_bool(core_select_menu)(nsoptions[NSOPTION_core_select_menu].value.b)) | |||
| 612 | b->width += SCROLLBAR_WIDTH16; | |||
| 613 | ||||
| 614 | } else { | |||
| 615 | font_func->width(&fstyle, b->text, | |||
| 616 | b->length, &b->width); | |||
| 617 | b->flags |= MEASURED; | |||
| 618 | } | |||
| 619 | } | |||
| 620 | max += b->width; | |||
| 621 | if (b->next) { | |||
| 622 | if (b->space == UNKNOWN_WIDTH2147483647) { | |||
| 623 | font_func->width(&fstyle, " ", 1, | |||
| 624 | &b->space); | |||
| 625 | } | |||
| 626 | max += b->space; | |||
| 627 | } | |||
| 628 | ||||
| 629 | if (no_wrap) { | |||
| 630 | /* Don't wrap due to block style, | |||
| 631 | * so min is the same as max */ | |||
| 632 | min = max; | |||
| 633 | ||||
| 634 | } else if (no_wrap_box) { | |||
| 635 | /* This inline box can't be wrapped, | |||
| 636 | * for min, consider box's width */ | |||
| 637 | if (min < b->width) | |||
| 638 | min = b->width; | |||
| 639 | ||||
| 640 | } else if (b->parent->flags & NEED_MIN) { | |||
| 641 | /* If we care what the minimum width is, | |||
| 642 | * calculate it. (It's only needed if we're | |||
| 643 | * shrinking-to-fit.) */ | |||
| 644 | /* min = widest single word */ | |||
| 645 | i = 0; | |||
| 646 | do { | |||
| 647 | for (j = i; j != b->length && | |||
| 648 | b->text[j] != ' '; j++) | |||
| 649 | ; | |||
| 650 | font_func->width(&fstyle, b->text + i, | |||
| 651 | j - i, &width); | |||
| 652 | if (min < width) | |||
| 653 | min = width; | |||
| 654 | i = j + 1; | |||
| 655 | } while (j != b->length); | |||
| 656 | } | |||
| 657 | ||||
| 658 | *line_has_height = true1; | |||
| 659 | ||||
| 660 | continue; | |||
| 661 | } | |||
| 662 | ||||
| 663 | /* inline replaced, 10.3.2 and 10.6.2 */ | |||
| 664 | assert(b->style)((b->style) ? (void) (0) : __assert_fail ("b->style", "content/handlers/html/layout.c" , 664, __extension__ __PRETTY_FUNCTION__)); | |||
| 665 | ||||
| 666 | bs = css_computed_box_sizing(block->style); | |||
| 667 | ||||
| 668 | /* calculate box width */ | |||
| 669 | wtype = css_computed_width_px(b->style, | |||
| 670 | &content->unit_len_ctx, -1, &width); | |||
| 671 | if (wtype == CSS_WIDTH_SET) { | |||
| 672 | if (bs == CSS_BOX_SIZING_BORDER_BOX) { | |||
| 673 | fixed = frac = 0; | |||
| 674 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 675 | block->style, LEFT, | |||
| 676 | false0, true1, true1, | |||
| 677 | &fixed, &frac); | |||
| 678 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 679 | block->style, RIGHT, | |||
| 680 | false0, true1, true1, | |||
| 681 | &fixed, &frac); | |||
| 682 | if (width < fixed) { | |||
| 683 | width = fixed; | |||
| 684 | } | |||
| 685 | } | |||
| 686 | if (width < 0) | |||
| 687 | width = 0; | |||
| 688 | } else { | |||
| 689 | width = AUTO(-2147483647 -1); | |||
| 690 | } | |||
| 691 | ||||
| 692 | /* height */ | |||
| 693 | htype = css_computed_height(b->style, &value, &unit); | |||
| 694 | if (htype == CSS_HEIGHT_SET) { | |||
| 695 | height = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( b->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
| 696 | b->style,((css_unit_len2device_px( b->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
| 697 | &content->unit_len_ctx,((css_unit_len2device_px( b->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
| 698 | value, unit))((css_unit_len2device_px( b->style, &content->unit_len_ctx , value, unit)) >> 10); | |||
| 699 | } else { | |||
| 700 | height = AUTO(-2147483647 -1); | |||
| 701 | } | |||
| 702 | ||||
| 703 | if (b->object || (b->flags & REPLACE_DIM)) { | |||
| 704 | if (b->object) { | |||
| 705 | int temp_height = height; | |||
| 706 | layout_get_object_dimensions(b, | |||
| 707 | &width, &temp_height, | |||
| 708 | INT_MIN(-2147483647 -1), INT_MAX2147483647, | |||
| 709 | INT_MIN(-2147483647 -1), INT_MAX2147483647); | |||
| 710 | } | |||
| 711 | ||||
| 712 | fixed = frac = 0; | |||
| 713 | if (bs == CSS_BOX_SIZING_BORDER_BOX) { | |||
| 714 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 715 | b->style, LEFT, | |||
| 716 | true1, false0, false0, | |||
| 717 | &fixed, &frac); | |||
| 718 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 719 | b->style, RIGHT, | |||
| 720 | true1, false0, false0, | |||
| 721 | &fixed, &frac); | |||
| 722 | } else { | |||
| 723 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 724 | b->style, LEFT, | |||
| 725 | true1, true1, true1, | |||
| 726 | &fixed, &frac); | |||
| 727 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 728 | b->style, RIGHT, | |||
| 729 | true1, true1, true1, | |||
| 730 | &fixed, &frac); | |||
| 731 | } | |||
| 732 | if (0 < width + fixed) | |||
| 733 | width += fixed; | |||
| 734 | } else if (b->flags & IFRAME) { | |||
| 735 | /* TODO: handle percentage widths properly */ | |||
| 736 | if (width == AUTO(-2147483647 -1)) | |||
| 737 | width = 400; | |||
| 738 | ||||
| 739 | fixed = frac = 0; | |||
| 740 | if (bs == CSS_BOX_SIZING_BORDER_BOX) { | |||
| 741 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 742 | b->style, LEFT, | |||
| 743 | true1, false0, false0, | |||
| 744 | &fixed, &frac); | |||
| 745 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 746 | b->style, RIGHT, | |||
| 747 | true1, false0, false0, | |||
| 748 | &fixed, &frac); | |||
| 749 | } else { | |||
| 750 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 751 | b->style, LEFT, | |||
| 752 | true1, true1, true1, | |||
| 753 | &fixed, &frac); | |||
| 754 | calculate_mbp_width(&content->unit_len_ctx, | |||
| 755 | b->style, RIGHT, | |||
| 756 | true1, true1, true1, | |||
| 757 | &fixed, &frac); | |||
| 758 | } | |||
| 759 | ||||
| 760 | if (0 < width + fixed) | |||
| 761 | width += fixed; | |||
| 762 | ||||
| 763 | } else { | |||
| 764 | /* form control with no object */ | |||
| 765 | if (width == AUTO(-2147483647 -1)) | |||
| 766 | width = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10) | |||
| 767 | b->style,((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10) | |||
| 768 | &content->unit_len_ctx,((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10) | |||
| 769 | INTTOFIX(1), CSS_UNIT_EM))((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10); | |||
| 770 | } | |||
| 771 | ||||
| 772 | if (min < width && !box_has_percentage_max_width(b)) | |||
| 773 | min = width; | |||
| 774 | if (width > 0) | |||
| 775 | max += width; | |||
| 776 | ||||
| 777 | *line_has_height = true1; | |||
| 778 | } | |||
| 779 | ||||
| 780 | if (first_line) { | |||
| 781 | /* todo: handle percentage values properly */ | |||
| 782 | /* todo: handle text-indent interaction with floats */ | |||
| 783 | int text_indent = layout_text_indent(&content->unit_len_ctx, | |||
| 784 | first->parent->parent->style, 100); | |||
| 785 | min = (min + text_indent < 0) ? 0 : min + text_indent; | |||
| 786 | max = (max + text_indent < 0) ? 0 : max + text_indent; | |||
| 787 | } | |||
| 788 | ||||
| 789 | *line_min = min; | |||
| 790 | *line_max = max; | |||
| 791 | ||||
| 792 | NSLOG(layout, DEBUG, "line_min %i, line_max %i", min, max)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 792, }; nslog__log(&_nslog_ctx , "line_min %i, line_max %i", min, max); } } while(0); | |||
| 793 | ||||
| 794 | assert(b != first)((b != first) ? (void) (0) : __assert_fail ("b != first", "content/handlers/html/layout.c" , 794, __extension__ __PRETTY_FUNCTION__)); | |||
| 795 | assert(0 <= *line_min)((0 <= *line_min) ? (void) (0) : __assert_fail ("0 <= *line_min" , "content/handlers/html/layout.c", 795, __extension__ __PRETTY_FUNCTION__ )); | |||
| 796 | assert(*line_min <= *line_max)((*line_min <= *line_max) ? (void) (0) : __assert_fail ("*line_min <= *line_max" , "content/handlers/html/layout.c", 796, __extension__ __PRETTY_FUNCTION__ )); | |||
| 797 | return b; | |||
| 798 | } | |||
| 799 | ||||
| 800 | ||||
| 801 | /** | |||
| 802 | * Calculate minimum and maximum width of an inline container. | |||
| 803 | * | |||
| 804 | * \param inline_container box of type INLINE_CONTAINER | |||
| 805 | * \param[out] has_height set to true if container has height | |||
| 806 | * \param font_func Font functions. | |||
| 807 | * \post inline_container->min_width and inline_container->max_width filled in, | |||
| 808 | * 0 <= inline_container->min_width <= inline_container->max_width | |||
| 809 | */ | |||
| 810 | static void | |||
| 811 | layout_minmax_inline_container(struct box *inline_container, | |||
| 812 | bool_Bool *has_height, | |||
| 813 | const struct gui_layout_table *font_func, | |||
| 814 | const html_content *content) | |||
| 815 | { | |||
| 816 | struct box *child; | |||
| 817 | int line_min = 0, line_max = 0; | |||
| 818 | int min = 0, max = 0; | |||
| 819 | bool_Bool first_line = true1; | |||
| 820 | bool_Bool line_has_height; | |||
| 821 | ||||
| 822 | assert(inline_container->type == BOX_INLINE_CONTAINER)((inline_container->type == BOX_INLINE_CONTAINER) ? (void) (0) : __assert_fail ("inline_container->type == BOX_INLINE_CONTAINER" , "content/handlers/html/layout.c", 822, __extension__ __PRETTY_FUNCTION__ )); | |||
| 823 | ||||
| 824 | /* check if the widths have already been calculated */ | |||
| 825 | if (inline_container->max_width != UNKNOWN_MAX_WIDTH2147483647) | |||
| 826 | return; | |||
| 827 | ||||
| 828 | *has_height = false0; | |||
| 829 | ||||
| 830 | for (child = inline_container->children; child; ) { | |||
| 831 | child = layout_minmax_line(child, &line_min, &line_max, | |||
| 832 | first_line, &line_has_height, font_func, | |||
| 833 | content); | |||
| 834 | if (min < line_min) | |||
| 835 | min = line_min; | |||
| 836 | if (max < line_max) | |||
| 837 | max = line_max; | |||
| 838 | first_line = false0; | |||
| 839 | *has_height |= line_has_height; | |||
| 840 | } | |||
| 841 | ||||
| 842 | inline_container->min_width = min; | |||
| 843 | inline_container->max_width = max; | |||
| 844 | ||||
| 845 | assert(0 <= inline_container->min_width &&((0 <= inline_container->min_width && inline_container ->min_width <= inline_container->max_width) ? (void) (0) : __assert_fail ("0 <= inline_container->min_width && inline_container->min_width <= inline_container->max_width" , "content/handlers/html/layout.c", 847, __extension__ __PRETTY_FUNCTION__ )) | |||
| 846 | inline_container->min_width <=((0 <= inline_container->min_width && inline_container ->min_width <= inline_container->max_width) ? (void) (0) : __assert_fail ("0 <= inline_container->min_width && inline_container->min_width <= inline_container->max_width" , "content/handlers/html/layout.c", 847, __extension__ __PRETTY_FUNCTION__ )) | |||
| 847 | inline_container->max_width)((0 <= inline_container->min_width && inline_container ->min_width <= inline_container->max_width) ? (void) (0) : __assert_fail ("0 <= inline_container->min_width && inline_container->min_width <= inline_container->max_width" , "content/handlers/html/layout.c", 847, __extension__ __PRETTY_FUNCTION__ )); | |||
| 848 | } | |||
| 849 | ||||
| 850 | /** | |||
| 851 | * Calculate minimum and maximum width of a block. | |||
| 852 | * | |||
| 853 | * \param block box of type BLOCK, INLINE_BLOCK, or TABLE_CELL | |||
| 854 | * \param font_func font functions | |||
| 855 | * \param content The HTML content being layed out. | |||
| 856 | * \post block->min_width and block->max_width filled in, | |||
| 857 | * 0 <= block->min_width <= block->max_width | |||
| 858 | */ | |||
| 859 | static void layout_minmax_block( | |||
| 860 | struct box *block, | |||
| 861 | const struct gui_layout_table *font_func, | |||
| 862 | const html_content *content) | |||
| 863 | { | |||
| 864 | struct box *child; | |||
| 865 | int min = 0, max = 0; | |||
| 866 | int extra_fixed = 0; | |||
| 867 | float extra_frac = 0; | |||
| 868 | enum css_width_e wtype = CSS_WIDTH_AUTO; | |||
| 869 | css_fixed width = 0; | |||
| 870 | css_unit wunit = CSS_UNIT_PX; | |||
| 871 | enum css_height_e htype = CSS_HEIGHT_AUTO; | |||
| 872 | css_fixed height = 0; | |||
| 873 | css_unit hunit = CSS_UNIT_PX; | |||
| 874 | enum css_box_sizing_e bs = CSS_BOX_SIZING_CONTENT_BOX; | |||
| 875 | bool_Bool using_min_border_box = false0; | |||
| 876 | bool_Bool using_max_border_box = false0; | |||
| 877 | bool_Bool child_has_height = false0; | |||
| 878 | ||||
| 879 | assert(block->type == BOX_BLOCK ||((block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL" , "content/handlers/html/layout.c", 883, __extension__ __PRETTY_FUNCTION__ )) | |||
| 880 | block->type == BOX_FLEX ||((block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL" , "content/handlers/html/layout.c", 883, __extension__ __PRETTY_FUNCTION__ )) | |||
| 881 | block->type == BOX_INLINE_FLEX ||((block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL" , "content/handlers/html/layout.c", 883, __extension__ __PRETTY_FUNCTION__ )) | |||
| 882 | block->type == BOX_INLINE_BLOCK ||((block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL" , "content/handlers/html/layout.c", 883, __extension__ __PRETTY_FUNCTION__ )) | |||
| 883 | block->type == BOX_TABLE_CELL)((block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL" , "content/handlers/html/layout.c", 883, __extension__ __PRETTY_FUNCTION__ )); | |||
| 884 | ||||
| 885 | /* check if the widths have already been calculated */ | |||
| 886 | if (block->max_width != UNKNOWN_MAX_WIDTH2147483647) | |||
| 887 | return; | |||
| 888 | ||||
| 889 | if (block->style != NULL((void*)0)) { | |||
| 890 | wtype = css_computed_width(block->style, &width, &wunit); | |||
| 891 | htype = css_computed_height(block->style, &height, &hunit); | |||
| 892 | bs = css_computed_box_sizing(block->style); | |||
| 893 | } | |||
| 894 | ||||
| 895 | /* set whether the minimum width is of any interest for this box */ | |||
| 896 | if (((block->parent && lh__box_is_float_box(block->parent)) || | |||
| 897 | block->type == BOX_INLINE_BLOCK || | |||
| 898 | block->type == BOX_INLINE_FLEX) && | |||
| 899 | wtype != CSS_WIDTH_SET) { | |||
| 900 | /* box shrinks to fit; need minimum width */ | |||
| 901 | block->flags |= NEED_MIN; | |||
| 902 | } else if (block->type == BOX_TABLE_CELL) { | |||
| 903 | /* box shrinks to fit; need minimum width */ | |||
| 904 | block->flags |= NEED_MIN; | |||
| 905 | } else if (block->parent && (block->parent->flags & NEED_MIN) && | |||
| 906 | wtype != CSS_WIDTH_SET) { | |||
| 907 | /* box inside shrink-to-fit context; need minimum width */ | |||
| 908 | block->flags |= NEED_MIN; | |||
| 909 | } else if (block->parent && (block->parent->type == BOX_FLEX)) { | |||
| 910 | /* box is flex item */ | |||
| 911 | block->flags |= NEED_MIN; | |||
| 912 | } | |||
| 913 | ||||
| 914 | if (block->gadget && (block->gadget->type == GADGET_TEXTBOX || | |||
| 915 | block->gadget->type == GADGET_PASSWORD || | |||
| 916 | block->gadget->type == GADGET_FILE || | |||
| 917 | block->gadget->type == GADGET_TEXTAREA) && | |||
| 918 | block->style && wtype == CSS_WIDTH_AUTO) { | |||
| 919 | css_fixed size = INTTOFIX(10)(css_int_to_fixed(10)); | |||
| 920 | css_unit unit = CSS_UNIT_EM; | |||
| 921 | ||||
| 922 | min = max = FIXTOINT(css_unit_len2device_px(block->style,((css_unit_len2device_px(block->style, &content->unit_len_ctx , size, unit)) >> 10) | |||
| 923 | &content->unit_len_ctx, size, unit))((css_unit_len2device_px(block->style, &content->unit_len_ctx , size, unit)) >> 10); | |||
| 924 | ||||
| 925 | block->flags |= HAS_HEIGHT; | |||
| 926 | } | |||
| 927 | ||||
| 928 | if (block->gadget && (block->gadget->type == GADGET_RADIO || | |||
| 929 | block->gadget->type == GADGET_CHECKBOX) && | |||
| 930 | block->style && wtype == CSS_WIDTH_AUTO) { | |||
| 931 | css_fixed size = INTTOFIX(1)(css_int_to_fixed(1)); | |||
| 932 | css_unit unit = CSS_UNIT_EM; | |||
| 933 | ||||
| 934 | /* form checkbox or radio button | |||
| 935 | * if width is AUTO, set it to 1em */ | |||
| 936 | min = max = FIXTOINT(css_unit_len2device_px(block->style,((css_unit_len2device_px(block->style, &content->unit_len_ctx , size, unit)) >> 10) | |||
| 937 | &content->unit_len_ctx, size, unit))((css_unit_len2device_px(block->style, &content->unit_len_ctx , size, unit)) >> 10); | |||
| 938 | ||||
| 939 | block->flags |= HAS_HEIGHT; | |||
| 940 | } | |||
| 941 | ||||
| 942 | if (block->object) { | |||
| 943 | if (content_get_type(block->object) == CONTENT_HTML) { | |||
| 944 | layout_minmax_block(html_get_box_tree(block->object), | |||
| 945 | font_func, content); | |||
| 946 | min = html_get_box_tree(block->object)->min_width; | |||
| 947 | max = html_get_box_tree(block->object)->max_width; | |||
| 948 | } else { | |||
| 949 | min = max = content_get_width(block->object); | |||
| 950 | } | |||
| 951 | ||||
| 952 | block->flags |= HAS_HEIGHT; | |||
| 953 | } else if (block->flags & IFRAME) { | |||
| 954 | /** \todo do we need to know the min/max width of the iframe's | |||
| 955 | * content? */ | |||
| 956 | block->flags |= HAS_HEIGHT; | |||
| 957 | } else { | |||
| 958 | /* recurse through children */ | |||
| 959 | for (child = block->children; child; child = child->next) { | |||
| 960 | switch (child->type) { | |||
| 961 | case BOX_FLEX: | |||
| 962 | case BOX_BLOCK: | |||
| 963 | layout_minmax_block(child, font_func, | |||
| 964 | content); | |||
| 965 | if (child->flags & HAS_HEIGHT) | |||
| 966 | child_has_height = true1; | |||
| 967 | break; | |||
| 968 | case BOX_INLINE_CONTAINER: | |||
| 969 | if (block->flags & NEED_MIN) | |||
| 970 | child->flags |= NEED_MIN; | |||
| 971 | ||||
| 972 | layout_minmax_inline_container(child, | |||
| 973 | &child_has_height, font_func, | |||
| 974 | content); | |||
| 975 | if (child_has_height && | |||
| 976 | child == | |||
| 977 | child->parent->children) { | |||
| 978 | block->flags |= MAKE_HEIGHT; | |||
| 979 | } | |||
| 980 | break; | |||
| 981 | case BOX_TABLE: | |||
| 982 | layout_minmax_table(child, font_func, | |||
| 983 | content); | |||
| 984 | /* todo: fix for zero height tables */ | |||
| 985 | child_has_height = true1; | |||
| 986 | child->flags |= MAKE_HEIGHT; | |||
| 987 | break; | |||
| 988 | default: | |||
| 989 | assert(0)((0) ? (void) (0) : __assert_fail ("0", "content/handlers/html/layout.c" , 989, __extension__ __PRETTY_FUNCTION__)); | |||
| 990 | } | |||
| 991 | assert(child->max_width != UNKNOWN_MAX_WIDTH)((child->max_width != 2147483647) ? (void) (0) : __assert_fail ("child->max_width != UNKNOWN_MAX_WIDTH", "content/handlers/html/layout.c" , 991, __extension__ __PRETTY_FUNCTION__)); | |||
| 992 | ||||
| 993 | if (child->style && | |||
| 994 | (css_computed_position(child->style) == | |||
| 995 | CSS_POSITION_ABSOLUTE || | |||
| 996 | css_computed_position(child->style) == | |||
| 997 | CSS_POSITION_FIXED)) { | |||
| 998 | /* This child is positioned out of normal flow, | |||
| 999 | * so it will have no affect on width */ | |||
| 1000 | continue; | |||
| 1001 | } | |||
| 1002 | ||||
| 1003 | if (lh__box_is_flex_container(block) && | |||
| 1004 | lh__flex_main_is_horizontal(block)) { | |||
| 1005 | if (block->style != NULL((void*)0) && | |||
| 1006 | css_computed_flex_wrap(block->style) == | |||
| 1007 | CSS_FLEX_WRAP_NOWRAP) { | |||
| 1008 | min += child->min_width; | |||
| 1009 | } else { | |||
| 1010 | if (min < child->min_width) | |||
| 1011 | min = child->min_width; | |||
| 1012 | } | |||
| 1013 | max += child->max_width; | |||
| 1014 | ||||
| 1015 | } else { | |||
| 1016 | if (min < child->min_width) | |||
| 1017 | min = child->min_width; | |||
| 1018 | if (max < child->max_width) | |||
| 1019 | max = child->max_width; | |||
| 1020 | } | |||
| 1021 | ||||
| 1022 | if (child_has_height) | |||
| 1023 | block->flags |= HAS_HEIGHT; | |||
| 1024 | } | |||
| 1025 | } | |||
| 1026 | ||||
| 1027 | if (max < min) { | |||
| 1028 | box_dump(stderrstderr, block, 0, true1); | |||
| 1029 | assert(0)((0) ? (void) (0) : __assert_fail ("0", "content/handlers/html/layout.c" , 1029, __extension__ __PRETTY_FUNCTION__)); | |||
| 1030 | } | |||
| 1031 | ||||
| 1032 | /* fixed width takes priority */ | |||
| 1033 | if (block->type != BOX_TABLE_CELL && !lh__box_is_flex_item(block)) { | |||
| 1034 | bool_Bool border_box = bs == CSS_BOX_SIZING_BORDER_BOX; | |||
| 1035 | enum css_max_width_e max_type; | |||
| 1036 | enum css_min_width_e min_type; | |||
| 1037 | css_unit unit = CSS_UNIT_PX; | |||
| 1038 | css_fixed value = 0; | |||
| 1039 | int width; | |||
| 1040 | ||||
| 1041 | if (css_computed_width_px(block->style, &content->unit_len_ctx, | |||
| 1042 | -1, &width) == CSS_WIDTH_SET) { | |||
| 1043 | min = max = width; | |||
| 1044 | using_max_border_box = border_box; | |||
| 1045 | using_min_border_box = border_box; | |||
| 1046 | } | |||
| 1047 | ||||
| 1048 | min_type = css_computed_min_width(block->style, &value, &unit); | |||
| 1049 | if (min_type == CSS_MIN_WIDTH_SET && unit != CSS_UNIT_PCT) { | |||
| 1050 | int val = FIXTOINT(css_unit_len2device_px(block->style,((css_unit_len2device_px(block->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
| 1051 | &content->unit_len_ctx, value, unit))((css_unit_len2device_px(block->style, &content->unit_len_ctx , value, unit)) >> 10); | |||
| 1052 | ||||
| 1053 | if (min < val) { | |||
| 1054 | min = val; | |||
| 1055 | using_min_border_box = border_box; | |||
| 1056 | } | |||
| 1057 | } | |||
| 1058 | ||||
| 1059 | max_type = css_computed_max_width(block->style, &value, &unit); | |||
| 1060 | if (max_type == CSS_MAX_WIDTH_SET && unit != CSS_UNIT_PCT) { | |||
| 1061 | int val = FIXTOINT(css_unit_len2device_px(block->style,((css_unit_len2device_px(block->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
| 1062 | &content->unit_len_ctx, value, unit))((css_unit_len2device_px(block->style, &content->unit_len_ctx , value, unit)) >> 10); | |||
| 1063 | ||||
| 1064 | if (val >= 0 && max > val) { | |||
| 1065 | max = val; | |||
| 1066 | using_max_border_box = border_box; | |||
| 1067 | } | |||
| 1068 | } | |||
| 1069 | } | |||
| 1070 | ||||
| 1071 | if (htype == CSS_HEIGHT_SET && hunit != CSS_UNIT_PCT && | |||
| 1072 | height > INTTOFIX(0)(css_int_to_fixed(0))) { | |||
| 1073 | block->flags |= MAKE_HEIGHT; | |||
| 1074 | block->flags |= HAS_HEIGHT; | |||
| 1075 | } | |||
| 1076 | ||||
| 1077 | /* add margins, border, padding to min, max widths */ | |||
| 1078 | /* Note: we don't know available width here so percentage margin | |||
| 1079 | * and paddings are wrong. */ | |||
| 1080 | calculate_mbp_width(&content->unit_len_ctx, block->style, LEFT, | |||
| 1081 | false0, true1, true1, &extra_fixed, &extra_frac); | |||
| 1082 | calculate_mbp_width(&content->unit_len_ctx, block->style, RIGHT, | |||
| 1083 | false0, true1, true1, &extra_fixed, &extra_frac); | |||
| 1084 | ||||
| 1085 | if (using_max_border_box) { | |||
| 1086 | max -= extra_fixed; | |||
| 1087 | max = max(max, 0)(((max)>(0))?(max):(0)); | |||
| 1088 | } | |||
| 1089 | ||||
| 1090 | if (using_min_border_box) { | |||
| 1091 | min -= extra_fixed; | |||
| 1092 | min = max(min, 0)(((min)>(0))?(min):(0)); | |||
| 1093 | } | |||
| 1094 | ||||
| 1095 | if (max < min) { | |||
| 1096 | min = max; | |||
| 1097 | } | |||
| 1098 | ||||
| 1099 | calculate_mbp_width(&content->unit_len_ctx, block->style, LEFT, | |||
| 1100 | true1, false0, false0, &extra_fixed, &extra_frac); | |||
| 1101 | calculate_mbp_width(&content->unit_len_ctx, block->style, RIGHT, | |||
| 1102 | true1, false0, false0, &extra_fixed, &extra_frac); | |||
| 1103 | ||||
| 1104 | if (extra_fixed < 0) | |||
| 1105 | extra_fixed = 0; | |||
| 1106 | if (extra_frac < 0) | |||
| 1107 | extra_frac = 0; | |||
| 1108 | if (1.0 <= extra_frac) | |||
| 1109 | extra_frac = 0.9; | |||
| 1110 | if (block->style != NULL((void*)0) && | |||
| 1111 | (css_computed_float(block->style) == CSS_FLOAT_LEFT || | |||
| 1112 | css_computed_float(block->style) == CSS_FLOAT_RIGHT)) { | |||
| 1113 | /* floated boxs */ | |||
| 1114 | block->min_width = min + extra_fixed; | |||
| 1115 | block->max_width = max + extra_fixed; | |||
| 1116 | } else { | |||
| 1117 | /* not floated */ | |||
| 1118 | block->min_width = (min + extra_fixed) / (1.0 - extra_frac); | |||
| 1119 | block->max_width = (max + extra_fixed) / (1.0 - extra_frac); | |||
| 1120 | } | |||
| 1121 | ||||
| 1122 | assert(0 <= block->min_width)((0 <= block->min_width) ? (void) (0) : __assert_fail ( "0 <= block->min_width", "content/handlers/html/layout.c" , 1122, __extension__ __PRETTY_FUNCTION__)); | |||
| 1123 | assert(block->min_width <= block->max_width)((block->min_width <= block->max_width) ? (void) (0) : __assert_fail ("block->min_width <= block->max_width" , "content/handlers/html/layout.c", 1123, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1124 | } | |||
| 1125 | ||||
| 1126 | ||||
| 1127 | /** | |||
| 1128 | * Find next block that current margin collapses to. | |||
| 1129 | * | |||
| 1130 | * \param unit_len_ctx Length conversion context | |||
| 1131 | * \param box box to start tree-order search from (top margin is included) | |||
| 1132 | * \param block box responsible for current block fromatting context | |||
| 1133 | * \param viewport_height height of viewport in px | |||
| 1134 | * \param max_pos_margin updated to to maximum positive margin encountered | |||
| 1135 | * \param max_neg_margin updated to to maximum negative margin encountered | |||
| 1136 | * \return next box that current margin collapses to, or NULL if none. | |||
| 1137 | */ | |||
| 1138 | static struct box* | |||
| 1139 | layout_next_margin_block(const css_unit_ctx *unit_len_ctx, | |||
| 1140 | struct box *box, | |||
| 1141 | struct box *block, | |||
| 1142 | int viewport_height, | |||
| 1143 | int *max_pos_margin, | |||
| 1144 | int *max_neg_margin) | |||
| 1145 | { | |||
| 1146 | assert(block != NULL)((block != ((void*)0)) ? (void) (0) : __assert_fail ("block != NULL" , "content/handlers/html/layout.c", 1146, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1147 | ||||
| 1148 | while (box != NULL((void*)0)) { | |||
| 1149 | ||||
| 1150 | if (box->type == BOX_INLINE_CONTAINER || (box->style && | |||
| 1151 | (css_computed_position(box->style) != | |||
| 1152 | CSS_POSITION_ABSOLUTE && | |||
| 1153 | css_computed_position(box->style) != | |||
| 1154 | CSS_POSITION_FIXED))) { | |||
| 1155 | /* Not positioned */ | |||
| 1156 | ||||
| 1157 | /* Get margins */ | |||
| 1158 | if (box->style) { | |||
| 1159 | layout_find_dimensions(unit_len_ctx, | |||
| 1160 | box->parent->width, | |||
| 1161 | viewport_height, box, | |||
| 1162 | box->style, | |||
| 1163 | NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), | |||
| 1164 | NULL((void*)0), NULL((void*)0), box->margin, | |||
| 1165 | box->padding, box->border); | |||
| 1166 | ||||
| 1167 | /* Apply top margin */ | |||
| 1168 | if (*max_pos_margin < box->margin[TOP]) | |||
| 1169 | *max_pos_margin = box->margin[TOP]; | |||
| 1170 | else if (*max_neg_margin < -box->margin[TOP]) | |||
| 1171 | *max_neg_margin = -box->margin[TOP]; | |||
| 1172 | } | |||
| 1173 | ||||
| 1174 | /* Check whether box is the box current margin collapses | |||
| 1175 | * to */ | |||
| 1176 | if (box->flags & MAKE_HEIGHT || | |||
| 1177 | box->border[TOP].width || | |||
| 1178 | box->padding[TOP] || | |||
| 1179 | (box->style && | |||
| 1180 | css_computed_overflow_y(box->style) != | |||
| 1181 | CSS_OVERFLOW_VISIBLE) || | |||
| 1182 | (box->type == BOX_INLINE_CONTAINER && | |||
| 1183 | !box_is_first_child(box))) { | |||
| 1184 | /* Collapse to this box; return it */ | |||
| 1185 | return box; | |||
| 1186 | } | |||
| 1187 | } | |||
| 1188 | ||||
| 1189 | ||||
| 1190 | /* Find next box */ | |||
| 1191 | if (box->type == BOX_BLOCK && !box->object && box->children && | |||
| 1192 | box->style && | |||
| 1193 | css_computed_overflow_y(box->style) == | |||
| 1194 | CSS_OVERFLOW_VISIBLE) { | |||
| 1195 | /* Down into children. */ | |||
| 1196 | box = box->children; | |||
| 1197 | } else { | |||
| 1198 | if (!box->next) { | |||
| 1199 | /* No more siblings: | |||
| 1200 | * Go up to first ancestor with a sibling. */ | |||
| 1201 | do { | |||
| 1202 | /* Apply bottom margin */ | |||
| 1203 | if (*max_pos_margin < | |||
| 1204 | box->margin[BOTTOM]) | |||
| 1205 | *max_pos_margin = | |||
| 1206 | box->margin[BOTTOM]; | |||
| 1207 | else if (*max_neg_margin < | |||
| 1208 | -box->margin[BOTTOM]) | |||
| 1209 | *max_neg_margin = | |||
| 1210 | -box->margin[BOTTOM]; | |||
| 1211 | ||||
| 1212 | box = box->parent; | |||
| 1213 | } while (box != block && !box->next); | |||
| 1214 | ||||
| 1215 | if (box == block) { | |||
| 1216 | /* Margins don't collapse with stuff | |||
| 1217 | * outside the block formatting context | |||
| 1218 | */ | |||
| 1219 | return block; | |||
| 1220 | } | |||
| 1221 | } | |||
| 1222 | ||||
| 1223 | /* Apply bottom margin */ | |||
| 1224 | if (*max_pos_margin < box->margin[BOTTOM]) | |||
| 1225 | *max_pos_margin = box->margin[BOTTOM]; | |||
| 1226 | else if (*max_neg_margin < -box->margin[BOTTOM]) | |||
| 1227 | *max_neg_margin = -box->margin[BOTTOM]; | |||
| 1228 | ||||
| 1229 | /* To next sibling. */ | |||
| 1230 | box = box->next; | |||
| 1231 | ||||
| 1232 | /* Get margins */ | |||
| 1233 | if (box->style) { | |||
| 1234 | layout_find_dimensions(unit_len_ctx, | |||
| 1235 | box->parent->width, | |||
| 1236 | viewport_height, box, | |||
| 1237 | box->style, | |||
| 1238 | NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), | |||
| 1239 | NULL((void*)0), NULL((void*)0), box->margin, | |||
| 1240 | box->padding, box->border); | |||
| 1241 | } | |||
| 1242 | } | |||
| 1243 | } | |||
| 1244 | ||||
| 1245 | return NULL((void*)0); | |||
| 1246 | } | |||
| 1247 | ||||
| 1248 | ||||
| 1249 | /** | |||
| 1250 | * Find y coordinate which clears all floats on left and/or right. | |||
| 1251 | * | |||
| 1252 | * \param fl first float in float list | |||
| 1253 | * \param clear type of clear | |||
| 1254 | * \return y coordinate relative to ancestor box for floats | |||
| 1255 | */ | |||
| 1256 | static int layout_clear(struct box *fl, enum css_clear_e clear) | |||
| 1257 | { | |||
| 1258 | int y = 0; | |||
| 1259 | for (; fl; fl = fl->next_float) { | |||
| 1260 | if ((clear == CSS_CLEAR_LEFT || clear == CSS_CLEAR_BOTH) && | |||
| 1261 | fl->type == BOX_FLOAT_LEFT) | |||
| 1262 | if (y < fl->y + fl->height) | |||
| 1263 | y = fl->y + fl->height; | |||
| 1264 | if ((clear == CSS_CLEAR_RIGHT || clear == CSS_CLEAR_BOTH) && | |||
| 1265 | fl->type == BOX_FLOAT_RIGHT) | |||
| 1266 | if (y < fl->y + fl->height) | |||
| 1267 | y = fl->y + fl->height; | |||
| 1268 | } | |||
| 1269 | return y; | |||
| 1270 | } | |||
| 1271 | ||||
| 1272 | ||||
| 1273 | /** | |||
| 1274 | * Find left and right edges in a vertical range. | |||
| 1275 | * | |||
| 1276 | * \param fl first float in float list | |||
| 1277 | * \param y0 start of y range to search | |||
| 1278 | * \param y1 end of y range to search | |||
| 1279 | * \param x0 start left edge, updated to available left edge | |||
| 1280 | * \param x1 start right edge, updated to available right edge | |||
| 1281 | * \param left returns float on left if present | |||
| 1282 | * \param right returns float on right if present | |||
| 1283 | */ | |||
| 1284 | static void | |||
| 1285 | find_sides(struct box *fl, | |||
| 1286 | int y0, int y1, | |||
| 1287 | int *x0, int *x1, | |||
| 1288 | struct box **left, | |||
| 1289 | struct box **right) | |||
| 1290 | { | |||
| 1291 | int fy0, fy1, fx0, fx1; | |||
| 1292 | ||||
| 1293 | NSLOG(layout, DEBUG, "y0 %i, y1 %i, x0 %i, x1 %i", y0, y1, *x0, *x1)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1293, }; nslog__log(&_nslog_ctx , "y0 %i, y1 %i, x0 %i, x1 %i", y0, y1, *x0, *x1); } } while( 0); | |||
| 1294 | ||||
| 1295 | *left = *right = 0; | |||
| 1296 | for (; fl; fl = fl->next_float) { | |||
| 1297 | fy1 = fl->y + fl->height; | |||
| 1298 | if (fy1 < y0) { | |||
| 1299 | /* Floats are sorted in order of decreasing bottom pos. | |||
| 1300 | * Past here, all floats will be too high to concern us. | |||
| 1301 | */ | |||
| 1302 | return; | |||
| 1303 | } | |||
| 1304 | fy0 = fl->y; | |||
| 1305 | if (y0 < fy1 && fy0 <= y1) { | |||
| 1306 | if (fl->type == BOX_FLOAT_LEFT) { | |||
| 1307 | fx1 = fl->x + fl->width; | |||
| 1308 | if (*x0 < fx1) { | |||
| 1309 | *x0 = fx1; | |||
| 1310 | *left = fl; | |||
| 1311 | } | |||
| 1312 | } else { | |||
| 1313 | fx0 = fl->x; | |||
| 1314 | if (fx0 < *x1) { | |||
| 1315 | *x1 = fx0; | |||
| 1316 | *right = fl; | |||
| 1317 | } | |||
| 1318 | } | |||
| 1319 | } | |||
| 1320 | } | |||
| 1321 | ||||
| 1322 | NSLOG(layout, DEBUG, "x0 %i, x1 %i, left %p, right %p", *x0, *x1,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1323, }; nslog__log(&_nslog_ctx , "x0 %i, x1 %i, left %p, right %p", *x0, *x1, *left, *right) ; } } while(0) | |||
| 1323 | *left, *right)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1323, }; nslog__log(&_nslog_ctx , "x0 %i, x1 %i, left %p, right %p", *x0, *x1, *left, *right) ; } } while(0); | |||
| 1324 | } | |||
| 1325 | ||||
| 1326 | ||||
| 1327 | ||||
| 1328 | ||||
| 1329 | /** | |||
| 1330 | * Solve the width constraint as given in CSS 2.1 section 10.3.3. | |||
| 1331 | * | |||
| 1332 | * \param box Box to solve constraint for | |||
| 1333 | * \param available_width Max width available in pixels | |||
| 1334 | * \param width Current box width | |||
| 1335 | * \param lm Min left margin required to avoid floats in px. | |||
| 1336 | * zero if not applicable | |||
| 1337 | * \param rm Min right margin required to avoid floats in px. | |||
| 1338 | * zero if not applicable | |||
| 1339 | * \param max_width Box max-width ( -ve means no max-width to apply) | |||
| 1340 | * \param min_width Box min-width ( <=0 means no min-width to apply) | |||
| 1341 | * \return New box width | |||
| 1342 | * | |||
| 1343 | * \post \a box's left/right margins will be updated. | |||
| 1344 | */ | |||
| 1345 | static int | |||
| 1346 | layout_solve_width(struct box *box, | |||
| 1347 | int available_width, | |||
| 1348 | int width, | |||
| 1349 | int lm, | |||
| 1350 | int rm, | |||
| 1351 | int max_width, | |||
| 1352 | int min_width) | |||
| 1353 | { | |||
| 1354 | bool_Bool auto_width = false0; | |||
| 1355 | ||||
| 1356 | /* Increase specified left/right margins */ | |||
| 1357 | if (box->margin[LEFT] != AUTO(-2147483647 -1) && box->margin[LEFT] < lm && | |||
| 1358 | box->margin[LEFT] >= 0) | |||
| 1359 | box->margin[LEFT] = lm; | |||
| 1360 | if (box->margin[RIGHT] != AUTO(-2147483647 -1) && box->margin[RIGHT] < rm && | |||
| 1361 | box->margin[RIGHT] >= 0) | |||
| 1362 | box->margin[RIGHT] = rm; | |||
| 1363 | ||||
| 1364 | /* Find width */ | |||
| 1365 | if (width == AUTO(-2147483647 -1)) { | |||
| 1366 | int margin_left = box->margin[LEFT]; | |||
| 1367 | int margin_right = box->margin[RIGHT]; | |||
| 1368 | ||||
| 1369 | if (margin_left == AUTO(-2147483647 -1)) { | |||
| 1370 | margin_left = lm; | |||
| 1371 | } | |||
| 1372 | if (margin_right == AUTO(-2147483647 -1)) { | |||
| 1373 | margin_right = rm; | |||
| 1374 | } | |||
| 1375 | ||||
| 1376 | width = available_width - | |||
| 1377 | (margin_left + box->border[LEFT].width + | |||
| 1378 | box->padding[LEFT] + box->padding[RIGHT] + | |||
| 1379 | box->border[RIGHT].width + margin_right); | |||
| 1380 | width = width < 0 ? 0 : width; | |||
| 1381 | auto_width = true1; | |||
| 1382 | } | |||
| 1383 | ||||
| 1384 | if (max_width >= 0 && width > max_width) { | |||
| 1385 | /* max-width is admissable and width exceeds max-width */ | |||
| 1386 | width = max_width; | |||
| 1387 | auto_width = false0; | |||
| 1388 | } | |||
| 1389 | ||||
| 1390 | if (min_width > 0 && width < min_width) { | |||
| 1391 | /* min-width is admissable and width is less than max-width */ | |||
| 1392 | width = min_width; | |||
| 1393 | auto_width = false0; | |||
| 1394 | } | |||
| 1395 | ||||
| 1396 | /* Width was auto, and unconstrained by min/max width, so we're done */ | |||
| 1397 | if (auto_width) { | |||
| 1398 | /* any other 'auto' become 0 or the minimum required values */ | |||
| 1399 | if (box->margin[LEFT] == AUTO(-2147483647 -1)) { | |||
| 1400 | box->margin[LEFT] = lm; | |||
| 1401 | } | |||
| 1402 | if (box->margin[RIGHT] == AUTO(-2147483647 -1)) { | |||
| 1403 | box->margin[RIGHT] = rm; | |||
| 1404 | } | |||
| 1405 | return width; | |||
| 1406 | } | |||
| 1407 | ||||
| 1408 | /* Width was not auto, or was constrained by min/max width | |||
| 1409 | * Need to compute left/right margins */ | |||
| 1410 | ||||
| 1411 | /* HTML alignment (only applies to over-constrained boxes) */ | |||
| 1412 | if (box->margin[LEFT] != AUTO(-2147483647 -1) && box->margin[RIGHT] != AUTO(-2147483647 -1) && | |||
| 1413 | box->parent != NULL((void*)0) && box->parent->style != NULL((void*)0)) { | |||
| 1414 | switch (css_computed_text_align(box->parent->style)) { | |||
| 1415 | case CSS_TEXT_ALIGN_LIBCSS_RIGHT: | |||
| 1416 | box->margin[LEFT] = AUTO(-2147483647 -1); | |||
| 1417 | box->margin[RIGHT] = 0; | |||
| 1418 | break; | |||
| 1419 | case CSS_TEXT_ALIGN_LIBCSS_CENTER: | |||
| 1420 | box->margin[LEFT] = box->margin[RIGHT] = AUTO(-2147483647 -1); | |||
| 1421 | break; | |||
| 1422 | case CSS_TEXT_ALIGN_LIBCSS_LEFT: | |||
| 1423 | box->margin[LEFT] = 0; | |||
| 1424 | box->margin[RIGHT] = AUTO(-2147483647 -1); | |||
| 1425 | break; | |||
| 1426 | default: | |||
| 1427 | /* Leave it alone; no HTML alignment */ | |||
| 1428 | break; | |||
| 1429 | } | |||
| 1430 | } | |||
| 1431 | ||||
| 1432 | if (box->margin[LEFT] == AUTO(-2147483647 -1) && box->margin[RIGHT] == AUTO(-2147483647 -1)) { | |||
| 1433 | /* make the margins equal, centering the element */ | |||
| 1434 | box->margin[LEFT] = box->margin[RIGHT] = | |||
| 1435 | (available_width - lm - rm - | |||
| 1436 | (box->border[LEFT].width + box->padding[LEFT] + | |||
| 1437 | width + box->padding[RIGHT] + | |||
| 1438 | box->border[RIGHT].width)) / 2; | |||
| 1439 | ||||
| 1440 | if (box->margin[LEFT] < 0) { | |||
| 1441 | box->margin[RIGHT] += box->margin[LEFT]; | |||
| 1442 | box->margin[LEFT] = 0; | |||
| 1443 | } | |||
| 1444 | ||||
| 1445 | box->margin[LEFT] += lm; | |||
| 1446 | ||||
| 1447 | } else if (box->margin[LEFT] == AUTO(-2147483647 -1)) { | |||
| 1448 | box->margin[LEFT] = available_width - lm - | |||
| 1449 | (box->border[LEFT].width + box->padding[LEFT] + | |||
| 1450 | width + box->padding[RIGHT] + | |||
| 1451 | box->border[RIGHT].width + box->margin[RIGHT]); | |||
| 1452 | box->margin[LEFT] = box->margin[LEFT] < lm | |||
| 1453 | ? lm : box->margin[LEFT]; | |||
| 1454 | } else { | |||
| 1455 | /* margin-right auto or "over-constrained" */ | |||
| 1456 | box->margin[RIGHT] = available_width - rm - | |||
| 1457 | (box->margin[LEFT] + box->border[LEFT].width + | |||
| 1458 | box->padding[LEFT] + width + | |||
| 1459 | box->padding[RIGHT] + | |||
| 1460 | box->border[RIGHT].width); | |||
| 1461 | } | |||
| 1462 | ||||
| 1463 | return width; | |||
| 1464 | } | |||
| 1465 | ||||
| 1466 | ||||
| 1467 | /** | |||
| 1468 | * Compute dimensions of box, margins, paddings, and borders for a block-level | |||
| 1469 | * element. | |||
| 1470 | * | |||
| 1471 | * \param unit_len_ctx Length conversion context | |||
| 1472 | * \param available_width Max width available in pixels | |||
| 1473 | * \param viewport_height Height of viewport in pixels or -ve if unknown | |||
| 1474 | * \param lm min left margin required to avoid floats in px. | |||
| 1475 | * zero if not applicable | |||
| 1476 | * \param rm min right margin required to avoid floats in px. | |||
| 1477 | * zero if not applicable | |||
| 1478 | * \param box box to find dimensions of. updated with new width, | |||
| 1479 | * height, margins, borders and paddings | |||
| 1480 | * | |||
| 1481 | * See CSS 2.1 10.3.3, 10.3.4, 10.6.2, and 10.6.3. | |||
| 1482 | */ | |||
| 1483 | static void | |||
| 1484 | layout_block_find_dimensions(const css_unit_ctx *unit_len_ctx, | |||
| 1485 | int available_width, | |||
| 1486 | int viewport_height, | |||
| 1487 | int lm, | |||
| 1488 | int rm, | |||
| 1489 | struct box *box) | |||
| 1490 | { | |||
| 1491 | int width, max_width, min_width; | |||
| 1492 | int height, max_height, min_height; | |||
| 1493 | int *margin = box->margin; | |||
| 1494 | int *padding = box->padding; | |||
| 1495 | struct box_border *border = box->border; | |||
| 1496 | const css_computed_style *style = box->style; | |||
| 1497 | ||||
| 1498 | layout_find_dimensions(unit_len_ctx, available_width, viewport_height, box, | |||
| 1499 | style, &width, &height, &max_width, &min_width, | |||
| 1500 | &max_height, &min_height, margin, padding, border); | |||
| 1501 | ||||
| 1502 | if (box->object && !(box->flags & REPLACE_DIM) && | |||
| 1503 | content_get_type(box->object) != CONTENT_HTML) { | |||
| 1504 | /* block-level replaced element, see 10.3.4 and 10.6.2 */ | |||
| 1505 | layout_get_object_dimensions(box, &width, &height, | |||
| 1506 | min_width, max_width, min_height, max_height); | |||
| 1507 | } | |||
| 1508 | ||||
| 1509 | box->width = layout_solve_width(box, available_width, width, lm, rm, | |||
| 1510 | max_width, min_width); | |||
| 1511 | box->height = height; | |||
| 1512 | ||||
| 1513 | if (margin[TOP] == AUTO(-2147483647 -1)) | |||
| 1514 | margin[TOP] = 0; | |||
| 1515 | if (margin[BOTTOM] == AUTO(-2147483647 -1)) | |||
| 1516 | margin[BOTTOM] = 0; | |||
| 1517 | } | |||
| 1518 | ||||
| 1519 | ||||
| 1520 | /** | |||
| 1521 | * Manipulate a block's [RB]padding/height/width to accommodate scrollbars | |||
| 1522 | * | |||
| 1523 | * \param box Box to apply scrollbar space too. Must be BOX_BLOCK. | |||
| 1524 | * \param which Which scrollbar to make space for. Must be RIGHT or BOTTOM. | |||
| 1525 | */ | |||
| 1526 | static void layout_block_add_scrollbar(struct box *box, int which) | |||
| 1527 | { | |||
| 1528 | enum css_overflow_e overflow_x, overflow_y; | |||
| 1529 | ||||
| 1530 | assert(box->type == BOX_BLOCK && (which == RIGHT || which == BOTTOM))((box->type == BOX_BLOCK && (which == RIGHT || which == BOTTOM)) ? (void) (0) : __assert_fail ("box->type == BOX_BLOCK && (which == RIGHT || which == BOTTOM)" , "content/handlers/html/layout.c", 1530, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1531 | ||||
| 1532 | if (box->style == NULL((void*)0)) | |||
| 1533 | return; | |||
| 1534 | ||||
| 1535 | overflow_x = css_computed_overflow_x(box->style); | |||
| 1536 | overflow_y = css_computed_overflow_y(box->style); | |||
| 1537 | ||||
| 1538 | if (which == BOTTOM && | |||
| 1539 | (overflow_x == CSS_OVERFLOW_SCROLL || | |||
| 1540 | overflow_x == CSS_OVERFLOW_AUTO || | |||
| 1541 | (box->object && | |||
| 1542 | content_get_type(box->object) == CONTENT_HTML))) { | |||
| 1543 | /* make space for scrollbar, unless height is AUTO */ | |||
| 1544 | if (box->height != AUTO(-2147483647 -1) && | |||
| 1545 | (overflow_x == CSS_OVERFLOW_SCROLL || | |||
| 1546 | box_hscrollbar_present(box))) { | |||
| 1547 | box->padding[BOTTOM] += SCROLLBAR_WIDTH16; | |||
| 1548 | } | |||
| 1549 | ||||
| 1550 | } else if (which == RIGHT && | |||
| 1551 | (overflow_y == CSS_OVERFLOW_SCROLL || | |||
| 1552 | overflow_y == CSS_OVERFLOW_AUTO || | |||
| 1553 | (box->object && | |||
| 1554 | content_get_type(box->object) == CONTENT_HTML))) { | |||
| 1555 | /* make space for scrollbars, unless width is AUTO */ | |||
| 1556 | enum css_height_e htype; | |||
| 1557 | css_fixed height = 0; | |||
| 1558 | css_unit hunit = CSS_UNIT_PX; | |||
| 1559 | htype = css_computed_height(box->style, &height, &hunit); | |||
| 1560 | ||||
| 1561 | if (which == RIGHT && box->width != AUTO(-2147483647 -1) && | |||
| 1562 | htype == CSS_HEIGHT_SET && | |||
| 1563 | (overflow_y == CSS_OVERFLOW_SCROLL || | |||
| 1564 | box_vscrollbar_present(box))) { | |||
| 1565 | box->width -= SCROLLBAR_WIDTH16; | |||
| 1566 | box->padding[RIGHT] += SCROLLBAR_WIDTH16; | |||
| 1567 | } | |||
| 1568 | } | |||
| 1569 | } | |||
| 1570 | ||||
| 1571 | ||||
| 1572 | /** | |||
| 1573 | * Moves the children of a box by a specified amount | |||
| 1574 | * | |||
| 1575 | * \param box top of tree of boxes | |||
| 1576 | * \param x the amount to move children by horizontally | |||
| 1577 | * \param y the amount to move children by vertically | |||
| 1578 | */ | |||
| 1579 | static void layout_move_children(struct box *box, int x, int y) | |||
| 1580 | { | |||
| 1581 | assert(box)((box) ? (void) (0) : __assert_fail ("box", "content/handlers/html/layout.c" , 1581, __extension__ __PRETTY_FUNCTION__)); | |||
| 1582 | ||||
| 1583 | for (box = box->children; box; box = box->next) { | |||
| 1584 | box->x += x; | |||
| 1585 | box->y += y; | |||
| 1586 | } | |||
| 1587 | } | |||
| 1588 | ||||
| 1589 | ||||
| 1590 | /* Documented in layout_internal.h */ | |||
| 1591 | bool_Bool layout_table( | |||
| 1592 | struct box *table, | |||
| 1593 | int available_width, | |||
| 1594 | html_content *content) | |||
| 1595 | { | |||
| 1596 | unsigned int columns = table->columns; /* total columns */ | |||
| 1597 | unsigned int i; | |||
| 1598 | unsigned int *row_span; | |||
| 1599 | int *excess_y; | |||
| 1600 | int table_width, min_width = 0, max_width = 0; | |||
| 1601 | int required_width = 0; | |||
| 1602 | int x, remainder = 0, count = 0; | |||
| 1603 | int table_height = 0; | |||
| 1604 | int min_height = 0; | |||
| 1605 | int *xs; /* array of column x positions */ | |||
| 1606 | int auto_width; | |||
| 1607 | int spare_width; | |||
| 1608 | int relative_sum = 0; | |||
| 1609 | int border_spacing_h = 0, border_spacing_v = 0; | |||
| 1610 | int spare_height; | |||
| 1611 | int positioned_columns = 0; | |||
| 1612 | struct box *containing_block = NULL((void*)0); | |||
| 1613 | struct box *c; | |||
| 1614 | struct box *row; | |||
| 1615 | struct box *row_group; | |||
| 1616 | struct box **row_span_cell; | |||
| 1617 | struct column *col; | |||
| 1618 | const css_computed_style *style = table->style; | |||
| 1619 | enum css_height_e htype; | |||
| 1620 | css_fixed value = 0; | |||
| 1621 | css_unit unit = CSS_UNIT_PX; | |||
| 1622 | ||||
| 1623 | assert(table->type == BOX_TABLE)((table->type == BOX_TABLE) ? (void) (0) : __assert_fail ( "table->type == BOX_TABLE", "content/handlers/html/layout.c" , 1623, __extension__ __PRETTY_FUNCTION__)); | |||
| 1624 | assert(style)((style) ? (void) (0) : __assert_fail ("style", "content/handlers/html/layout.c" , 1624, __extension__ __PRETTY_FUNCTION__)); | |||
| 1625 | assert(table->children && table->children->children)((table->children && table->children->children ) ? (void) (0) : __assert_fail ("table->children && table->children->children" , "content/handlers/html/layout.c", 1625, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1626 | assert(columns)((columns) ? (void) (0) : __assert_fail ("columns", "content/handlers/html/layout.c" , 1626, __extension__ __PRETTY_FUNCTION__)); | |||
| 1627 | ||||
| 1628 | /* allocate working buffers */ | |||
| 1629 | col = malloc(columns * sizeof col[0]); | |||
| 1630 | excess_y = malloc(columns * sizeof excess_y[0]); | |||
| 1631 | row_span = malloc(columns * sizeof row_span[0]); | |||
| 1632 | row_span_cell = malloc(columns * sizeof row_span_cell[0]); | |||
| 1633 | xs = malloc((columns + 1) * sizeof xs[0]); | |||
| 1634 | if (!col || !xs || !row_span || !excess_y || !row_span_cell) { | |||
| 1635 | free(col); | |||
| 1636 | free(excess_y); | |||
| 1637 | free(row_span); | |||
| 1638 | free(row_span_cell); | |||
| 1639 | free(xs); | |||
| 1640 | return false0; | |||
| 1641 | } | |||
| 1642 | ||||
| 1643 | memcpy(col, table->col, sizeof(col[0]) * columns); | |||
| 1644 | ||||
| 1645 | /* find margins, paddings, and borders for table and cells */ | |||
| 1646 | layout_find_dimensions(&content->unit_len_ctx, available_width, -1, table, | |||
| 1647 | style, 0, 0, 0, 0, 0, 0, table->margin, table->padding, | |||
| 1648 | table->border); | |||
| 1649 | for (row_group = table->children; row_group; | |||
| 1650 | row_group = row_group->next) { | |||
| 1651 | for (row = row_group->children; row; row = row->next) { | |||
| 1652 | for (c = row->children; c; c = c->next) { | |||
| 1653 | enum css_overflow_e overflow_x; | |||
| 1654 | enum css_overflow_e overflow_y; | |||
| 1655 | ||||
| 1656 | assert(c->style)((c->style) ? (void) (0) : __assert_fail ("c->style", "content/handlers/html/layout.c" , 1656, __extension__ __PRETTY_FUNCTION__)); | |||
| 1657 | table_used_border_for_cell( | |||
| 1658 | &content->unit_len_ctx, c); | |||
| 1659 | layout_find_dimensions(&content->unit_len_ctx, | |||
| 1660 | available_width, -1, c, | |||
| 1661 | c->style, 0, 0, 0, 0, 0, 0, | |||
| 1662 | 0, c->padding, c->border); | |||
| 1663 | ||||
| 1664 | overflow_x = css_computed_overflow_x(c->style); | |||
| 1665 | overflow_y = css_computed_overflow_y(c->style); | |||
| 1666 | ||||
| 1667 | if (overflow_x == CSS_OVERFLOW_SCROLL || | |||
| 1668 | overflow_x == | |||
| 1669 | CSS_OVERFLOW_AUTO) { | |||
| 1670 | c->padding[BOTTOM] += SCROLLBAR_WIDTH16; | |||
| 1671 | } | |||
| 1672 | if (overflow_y == CSS_OVERFLOW_SCROLL || | |||
| 1673 | overflow_y == | |||
| 1674 | CSS_OVERFLOW_AUTO) { | |||
| 1675 | c->padding[RIGHT] += SCROLLBAR_WIDTH16; | |||
| 1676 | } | |||
| 1677 | } | |||
| 1678 | } | |||
| 1679 | } | |||
| 1680 | ||||
| 1681 | /* border-spacing is used in the separated borders model */ | |||
| 1682 | if (css_computed_border_collapse(style) == | |||
| 1683 | CSS_BORDER_COLLAPSE_SEPARATE) { | |||
| 1684 | css_fixed h = 0, v = 0; | |||
| 1685 | css_unit hu = CSS_UNIT_PX, vu = CSS_UNIT_PX; | |||
| 1686 | ||||
| 1687 | css_computed_border_spacing(style, &h, &hu, &v, &vu); | |||
| 1688 | ||||
| 1689 | border_spacing_h = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( style, &content->unit_len_ctx , h, hu)) >> 10) | |||
| 1690 | style, &content->unit_len_ctx, h, hu))((css_unit_len2device_px( style, &content->unit_len_ctx , h, hu)) >> 10); | |||
| 1691 | border_spacing_v = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( style, &content->unit_len_ctx , v, vu)) >> 10) | |||
| 1692 | style, &content->unit_len_ctx, v, vu))((css_unit_len2device_px( style, &content->unit_len_ctx , v, vu)) >> 10); | |||
| 1693 | } | |||
| 1694 | ||||
| 1695 | /* find specified table width, or available width if auto-width */ | |||
| 1696 | if (css_computed_width_px(style, &content->unit_len_ctx, | |||
| 1697 | available_width, &table_width) == CSS_WIDTH_SET) { | |||
| 1698 | /* specified width includes border */ | |||
| 1699 | table_width -= table->border[LEFT].width + | |||
| 1700 | table->border[RIGHT].width; | |||
| 1701 | table_width = table_width < 0 ? 0 : table_width; | |||
| 1702 | ||||
| 1703 | auto_width = table_width; | |||
| 1704 | } else { | |||
| 1705 | table_width = AUTO(-2147483647 -1); | |||
| 1706 | auto_width = available_width - | |||
| 1707 | ((table->margin[LEFT] == AUTO(-2147483647 -1) ? 0 : | |||
| 1708 | table->margin[LEFT]) + | |||
| 1709 | table->border[LEFT].width + | |||
| 1710 | table->padding[LEFT] + | |||
| 1711 | table->padding[RIGHT] + | |||
| 1712 | table->border[RIGHT].width + | |||
| 1713 | (table->margin[RIGHT] == AUTO(-2147483647 -1) ? 0 : | |||
| 1714 | table->margin[RIGHT])); | |||
| 1715 | } | |||
| 1716 | ||||
| 1717 | /* Find any table height specified within CSS/HTML */ | |||
| 1718 | htype = css_computed_height(style, &value, &unit); | |||
| 1719 | if (htype == CSS_HEIGHT_SET) { | |||
| 1720 | if (unit == CSS_UNIT_PCT) { | |||
| 1721 | /* This is the minimum height for the table | |||
| 1722 | * (see 17.5.3) */ | |||
| 1723 | if (css_computed_position(table->style) == | |||
| 1724 | CSS_POSITION_ABSOLUTE) { | |||
| 1725 | /* Table is absolutely positioned */ | |||
| 1726 | assert(table->float_container)((table->float_container) ? (void) (0) : __assert_fail ("table->float_container" , "content/handlers/html/layout.c", 1726, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1727 | containing_block = table->float_container; | |||
| 1728 | } else if (table->float_container && | |||
| 1729 | css_computed_position(table->style) != | |||
| 1730 | CSS_POSITION_ABSOLUTE && | |||
| 1731 | (css_computed_float(table->style) == | |||
| 1732 | CSS_FLOAT_LEFT || | |||
| 1733 | css_computed_float(table->style) == | |||
| 1734 | CSS_FLOAT_RIGHT)) { | |||
| 1735 | /* Table is a float */ | |||
| 1736 | assert(table->parent && table->parent->parent &&((table->parent && table->parent->parent && table->parent->parent->parent) ? (void) (0) : __assert_fail ("table->parent && table->parent->parent && table->parent->parent->parent" , "content/handlers/html/layout.c", 1737, __extension__ __PRETTY_FUNCTION__ )) | |||
| 1737 | table->parent->parent->parent)((table->parent && table->parent->parent && table->parent->parent->parent) ? (void) (0) : __assert_fail ("table->parent && table->parent->parent && table->parent->parent->parent" , "content/handlers/html/layout.c", 1737, __extension__ __PRETTY_FUNCTION__ )); | |||
| 1738 | containing_block = | |||
| 1739 | table->parent->parent->parent; | |||
| 1740 | } else if (table->parent && table->parent->type != | |||
| 1741 | BOX_INLINE_CONTAINER) { | |||
| 1742 | /* Table is a block level element */ | |||
| 1743 | containing_block = table->parent; | |||
| 1744 | } else if (table->parent && table->parent->type == | |||
| 1745 | BOX_INLINE_CONTAINER) { | |||
| 1746 | /* Table is an inline block */ | |||
| 1747 | assert(table->parent->parent)((table->parent->parent) ? (void) (0) : __assert_fail ( "table->parent->parent", "content/handlers/html/layout.c" , 1747, __extension__ __PRETTY_FUNCTION__)); | |||
| 1748 | containing_block = table->parent->parent; | |||
| 1749 | } | |||
| 1750 | ||||
| 1751 | if (containing_block) { | |||
| 1752 | css_fixed ignored = 0; | |||
| 1753 | ||||
| 1754 | htype = css_computed_height( | |||
| 1755 | containing_block->style, | |||
| 1756 | &ignored, &unit); | |||
| 1757 | } | |||
| 1758 | ||||
| 1759 | if (containing_block && | |||
| 1760 | containing_block->height != AUTO(-2147483647 -1) && | |||
| 1761 | (css_computed_position(table->style) == | |||
| 1762 | CSS_POSITION_ABSOLUTE || | |||
| 1763 | htype == CSS_HEIGHT_SET)) { | |||
| 1764 | /* Table is absolutely positioned or its | |||
| 1765 | * containing block has a valid specified | |||
| 1766 | * height. (CSS 2.1 Section 10.5) */ | |||
| 1767 | min_height = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)) | |||
| 1768 | containing_block->height)((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)); | |||
| 1769 | } | |||
| 1770 | } else { | |||
| 1771 | /* This is the minimum height for the table | |||
| 1772 | * (see 17.5.3) */ | |||
| 1773 | min_height = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( style, &content->unit_len_ctx , value, unit)) >> 10) | |||
| 1774 | style, &content->unit_len_ctx,((css_unit_len2device_px( style, &content->unit_len_ctx , value, unit)) >> 10) | |||
| 1775 | value, unit))((css_unit_len2device_px( style, &content->unit_len_ctx , value, unit)) >> 10); | |||
| 1776 | } | |||
| 1777 | } | |||
| 1778 | ||||
| 1779 | /* calculate width required by cells */ | |||
| 1780 | for (i = 0; i != columns; i++) { | |||
| 1781 | ||||
| 1782 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0) | |||
| 1783 | "table %p, column %u: type %s, width %i, min %i, max %i",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0) | |||
| 1784 | table,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0) | |||
| 1785 | i,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0) | |||
| 1786 | ((const char *[]){do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0) | |||
| 1787 | "UNKNOWN",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0) | |||
| 1788 | "FIXED",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0) | |||
| 1789 | "AUTO",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0) | |||
| 1790 | "PERCENT",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0) | |||
| 1791 | "RELATIVE",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0) | |||
| 1792 | })[col[i].type],do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0) | |||
| 1793 | col[i].width,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0) | |||
| 1794 | col[i].min,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0) | |||
| 1795 | col[i].max)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1795, }; nslog__log(&_nslog_ctx , "table %p, column %u: type %s, width %i, min %i, max %i", table , i, ((const char *[]){ "UNKNOWN", "FIXED", "AUTO", "PERCENT" , "RELATIVE", })[col[i].type], col[i].width, col[i].min, col[ i].max); } } while(0); | |||
| 1796 | ||||
| 1797 | ||||
| 1798 | if (col[i].positioned) { | |||
| 1799 | positioned_columns++; | |||
| 1800 | continue; | |||
| 1801 | } else if (col[i].type == COLUMN_WIDTH_FIXED) { | |||
| 1802 | if (col[i].width < col[i].min) | |||
| 1803 | col[i].width = col[i].max = col[i].min; | |||
| 1804 | else | |||
| 1805 | col[i].min = col[i].max = col[i].width; | |||
| 1806 | required_width += col[i].width; | |||
| 1807 | } else if (col[i].type == COLUMN_WIDTH_PERCENT) { | |||
| 1808 | int width = col[i].width * auto_width / 100; | |||
| 1809 | required_width += col[i].min < width ? width : | |||
| 1810 | col[i].min; | |||
| 1811 | } else | |||
| 1812 | required_width += col[i].min; | |||
| 1813 | ||||
| 1814 | NSLOG(layout, DEBUG, "required_width %i", required_width)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1814, }; nslog__log(&_nslog_ctx , "required_width %i", required_width); } } while(0); | |||
| 1815 | } | |||
| 1816 | required_width += (columns + 1 - positioned_columns) * | |||
| 1817 | border_spacing_h; | |||
| 1818 | ||||
| 1819 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1821, }; nslog__log(&_nslog_ctx , "width %i, min %i, max %i, auto %i, required %i", table_width , table->min_width, table->max_width, auto_width, required_width ); } } while(0) | |||
| 1820 | "width %i, min %i, max %i, auto %i, required %i", table_width,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1821, }; nslog__log(&_nslog_ctx , "width %i, min %i, max %i, auto %i, required %i", table_width , table->min_width, table->max_width, auto_width, required_width ); } } while(0) | |||
| 1821 | table->min_width, table->max_width, auto_width, required_width)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 1821, }; nslog__log(&_nslog_ctx , "width %i, min %i, max %i, auto %i, required %i", table_width , table->min_width, table->max_width, auto_width, required_width ); } } while(0); | |||
| 1822 | ||||
| 1823 | if (auto_width < required_width) { | |||
| 1824 | /* table narrower than required width for columns: | |||
| 1825 | * treat percentage widths as maximums */ | |||
| 1826 | for (i = 0; i != columns; i++) { | |||
| 1827 | if (col[i].type == COLUMN_WIDTH_RELATIVE) | |||
| 1828 | continue; | |||
| 1829 | if (col[i].type == COLUMN_WIDTH_PERCENT) { | |||
| 1830 | col[i].max = auto_width * col[i].width / 100; | |||
| 1831 | if (col[i].max < col[i].min) | |||
| 1832 | col[i].max = col[i].min; | |||
| 1833 | } | |||
| 1834 | min_width += col[i].min; | |||
| 1835 | max_width += col[i].max; | |||
| 1836 | } | |||
| 1837 | } else { | |||
| 1838 | /* take percentages exactly */ | |||
| 1839 | for (i = 0; i != columns; i++) { | |||
| 1840 | if (col[i].type == COLUMN_WIDTH_RELATIVE) | |||
| 1841 | continue; | |||
| 1842 | if (col[i].type == COLUMN_WIDTH_PERCENT) { | |||
| 1843 | int width = auto_width * col[i].width / 100; | |||
| 1844 | if (width < col[i].min) | |||
| 1845 | width = col[i].min; | |||
| 1846 | col[i].min = col[i].width = col[i].max = width; | |||
| 1847 | col[i].type = COLUMN_WIDTH_FIXED; | |||
| 1848 | } | |||
| 1849 | min_width += col[i].min; | |||
| 1850 | max_width += col[i].max; | |||
| 1851 | } | |||
| 1852 | } | |||
| 1853 | ||||
| 1854 | /* allocate relative widths */ | |||
| 1855 | spare_width = auto_width; | |||
| 1856 | for (i = 0; i != columns; i++) { | |||
| 1857 | if (col[i].type == COLUMN_WIDTH_RELATIVE) | |||
| 1858 | relative_sum += col[i].width; | |||
| 1859 | else if (col[i].type == COLUMN_WIDTH_FIXED) | |||
| 1860 | spare_width -= col[i].width; | |||
| 1861 | else | |||
| 1862 | spare_width -= col[i].min; | |||
| 1863 | } | |||
| 1864 | spare_width -= (columns + 1) * border_spacing_h; | |||
| 1865 | if (relative_sum != 0) { | |||
| 1866 | if (spare_width < 0) | |||
| 1867 | spare_width = 0; | |||
| 1868 | for (i = 0; i != columns; i++) { | |||
| 1869 | if (col[i].type == COLUMN_WIDTH_RELATIVE) { | |||
| 1870 | col[i].min = ceil(col[i].max = | |||
| 1871 | (float) spare_width | |||
| 1872 | * (float) col[i].width | |||
| 1873 | / relative_sum); | |||
| 1874 | min_width += col[i].min; | |||
| 1875 | max_width += col[i].max; | |||
| 1876 | } | |||
| 1877 | } | |||
| 1878 | } | |||
| 1879 | min_width += (columns + 1) * border_spacing_h; | |||
| 1880 | max_width += (columns + 1) * border_spacing_h; | |||
| 1881 | ||||
| 1882 | if (auto_width <= min_width) { | |||
| 1883 | /* not enough space: minimise column widths */ | |||
| 1884 | for (i = 0; i < columns; i++) { | |||
| 1885 | col[i].width = col[i].min; | |||
| 1886 | } | |||
| 1887 | table_width = min_width; | |||
| 1888 | } else if (max_width <= auto_width) { | |||
| 1889 | /* more space than maximum width */ | |||
| 1890 | if (table_width == AUTO(-2147483647 -1)) { | |||
| 1891 | /* for auto-width tables, make columns max width */ | |||
| 1892 | for (i = 0; i < columns; i++) { | |||
| 1893 | col[i].width = col[i].max; | |||
| 1894 | } | |||
| 1895 | table_width = max_width; | |||
| 1896 | } else { | |||
| 1897 | /* for fixed-width tables, distribute the extra space | |||
| 1898 | * too */ | |||
| 1899 | unsigned int flexible_columns = 0; | |||
| 1900 | for (i = 0; i != columns; i++) | |||
| 1901 | if (col[i].type != COLUMN_WIDTH_FIXED) | |||
| 1902 | flexible_columns++; | |||
| 1903 | if (flexible_columns == 0) { | |||
| 1904 | int extra = (table_width - max_width) / columns; | |||
| 1905 | remainder = (table_width - max_width) - | |||
| 1906 | (extra * columns); | |||
| 1907 | for (i = 0; i != columns; i++) { | |||
| 1908 | col[i].width = col[i].max + extra; | |||
| 1909 | count -= remainder; | |||
| 1910 | if (count < 0) { | |||
| 1911 | col[i].width++; | |||
| 1912 | count += columns; | |||
| 1913 | } | |||
| 1914 | } | |||
| 1915 | ||||
| 1916 | } else { | |||
| 1917 | int extra = (table_width - max_width) / | |||
| 1918 | flexible_columns; | |||
| 1919 | remainder = (table_width - max_width) - | |||
| 1920 | (extra * flexible_columns); | |||
| 1921 | for (i = 0; i != columns; i++) | |||
| 1922 | if (col[i].type != COLUMN_WIDTH_FIXED) { | |||
| 1923 | col[i].width = col[i].max + | |||
| 1924 | extra; | |||
| 1925 | count -= remainder; | |||
| 1926 | if (count < 0) { | |||
| 1927 | col[i].width++; | |||
| 1928 | count += flexible_columns; | |||
| 1929 | } | |||
| 1930 | } | |||
| 1931 | } | |||
| 1932 | } | |||
| 1933 | } else { | |||
| 1934 | /* space between min and max: fill it exactly */ | |||
| 1935 | float scale = (float) (auto_width - min_width) / | |||
| 1936 | (float) (max_width - min_width); | |||
| 1937 | /* fprintf(stderr, "filling, scale %f\n", scale); */ | |||
| 1938 | for (i = 0; i < columns; i++) { | |||
| 1939 | col[i].width = col[i].min + (int) (0.5 + | |||
| 1940 | (col[i].max - col[i].min) * scale); | |||
| 1941 | } | |||
| 1942 | table_width = auto_width; | |||
| 1943 | } | |||
| 1944 | ||||
| 1945 | xs[0] = x = border_spacing_h; | |||
| 1946 | for (i = 0; i != columns; i++) { | |||
| 1947 | if (!col[i].positioned) | |||
| 1948 | x += col[i].width + border_spacing_h; | |||
| 1949 | xs[i + 1] = x; | |||
| 1950 | row_span[i] = 0; | |||
| 1951 | excess_y[i] = 0; | |||
| 1952 | row_span_cell[i] = 0; | |||
| 1953 | } | |||
| 1954 | ||||
| 1955 | /* position cells */ | |||
| 1956 | table_height = border_spacing_v; | |||
| 1957 | for (row_group = table->children; row_group; | |||
| 1958 | row_group = row_group->next) { | |||
| 1959 | int row_group_height = 0; | |||
| 1960 | for (row = row_group->children; row; row = row->next) { | |||
| 1961 | int row_height = 0; | |||
| 1962 | ||||
| 1963 | htype = css_computed_height(row->style, &value, &unit); | |||
| 1964 | if (htype == CSS_HEIGHT_SET && unit != CSS_UNIT_PCT) { | |||
| 1965 | row_height = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( row->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
| 1966 | row->style,((css_unit_len2device_px( row->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
| 1967 | &content->unit_len_ctx,((css_unit_len2device_px( row->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
| 1968 | value, unit))((css_unit_len2device_px( row->style, &content->unit_len_ctx , value, unit)) >> 10); | |||
| 1969 | } | |||
| 1970 | for (c = row->children; c; c = c->next) { | |||
| 1971 | assert(c->style)((c->style) ? (void) (0) : __assert_fail ("c->style", "content/handlers/html/layout.c" , 1971, __extension__ __PRETTY_FUNCTION__)); | |||
| 1972 | c->width = xs[c->start_column + c->columns] - | |||
| 1973 | xs[c->start_column] - | |||
| 1974 | border_spacing_h - | |||
| 1975 | c->border[LEFT].width - | |||
| 1976 | c->padding[LEFT] - | |||
| 1977 | c->padding[RIGHT] - | |||
| 1978 | c->border[RIGHT].width; | |||
| 1979 | c->float_children = 0; | |||
| 1980 | c->cached_place_below_level = 0; | |||
| 1981 | ||||
| 1982 | c->height = AUTO(-2147483647 -1); | |||
| 1983 | if (!layout_block_context(c, -1, content)) { | |||
| 1984 | free(col); | |||
| 1985 | free(excess_y); | |||
| 1986 | free(row_span); | |||
| 1987 | free(row_span_cell); | |||
| 1988 | free(xs); | |||
| 1989 | return false0; | |||
| 1990 | } | |||
| 1991 | /* warning: c->descendant_y0 and | |||
| 1992 | * c->descendant_y1 used as temporary storage | |||
| 1993 | * until after vertical alignment is complete */ | |||
| 1994 | c->descendant_y0 = c->height; | |||
| 1995 | c->descendant_y1 = c->padding[BOTTOM]; | |||
| 1996 | ||||
| 1997 | htype = css_computed_height(c->style, | |||
| 1998 | &value, &unit); | |||
| 1999 | ||||
| 2000 | if (htype == CSS_HEIGHT_SET && | |||
| 2001 | unit != CSS_UNIT_PCT) { | |||
| 2002 | /* some sites use height="1" or similar | |||
| 2003 | * to attempt to make cells as small as | |||
| 2004 | * possible, so treat it as a minimum */ | |||
| 2005 | int h = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( c->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
| 2006 | c->style,((css_unit_len2device_px( c->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
| 2007 | &content->unit_len_ctx,((css_unit_len2device_px( c->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
| 2008 | value, unit))((css_unit_len2device_px( c->style, &content->unit_len_ctx , value, unit)) >> 10); | |||
| 2009 | if (c->height < h) | |||
| 2010 | c->height = h; | |||
| 2011 | } | |||
| 2012 | /* specified row height is treated as a minimum | |||
| 2013 | */ | |||
| 2014 | if (c->height < row_height) | |||
| 2015 | c->height = row_height; | |||
| 2016 | c->x = xs[c->start_column] + | |||
| 2017 | c->border[LEFT].width; | |||
| 2018 | c->y = c->border[TOP].width; | |||
| 2019 | for (i = 0; i != c->columns; i++) { | |||
| 2020 | row_span[c->start_column + i] = c->rows; | |||
| 2021 | excess_y[c->start_column + i] = | |||
| 2022 | c->border[TOP].width + | |||
| 2023 | c->padding[TOP] + | |||
| 2024 | c->height + | |||
| 2025 | c->padding[BOTTOM] + | |||
| 2026 | c->border[BOTTOM].width; | |||
| 2027 | row_span_cell[c->start_column + i] = 0; | |||
| 2028 | } | |||
| 2029 | row_span_cell[c->start_column] = c; | |||
| 2030 | c->padding[BOTTOM] = -border_spacing_v - | |||
| 2031 | c->border[TOP].width - | |||
| 2032 | c->padding[TOP] - | |||
| 2033 | c->height - | |||
| 2034 | c->border[BOTTOM].width; | |||
| 2035 | } | |||
| 2036 | for (i = 0; i != columns; i++) | |||
| 2037 | if (row_span[i] != 0) | |||
| 2038 | row_span[i]--; | |||
| 2039 | else | |||
| 2040 | row_span_cell[i] = 0; | |||
| 2041 | if (row->next || row_group->next) { | |||
| 2042 | /* row height is greatest excess of a cell | |||
| 2043 | * which ends in this row */ | |||
| 2044 | for (i = 0; i != columns; i++) | |||
| 2045 | if (row_span[i] == 0 && row_height < | |||
| 2046 | excess_y[i]) | |||
| 2047 | row_height = excess_y[i]; | |||
| 2048 | } else { | |||
| 2049 | /* except in the last row */ | |||
| 2050 | for (i = 0; i != columns; i++) | |||
| 2051 | if (row_height < excess_y[i]) | |||
| 2052 | row_height = excess_y[i]; | |||
| 2053 | } | |||
| 2054 | for (i = 0; i != columns; i++) { | |||
| 2055 | if (row_height < excess_y[i]) | |||
| 2056 | excess_y[i] -= row_height; | |||
| 2057 | else | |||
| 2058 | excess_y[i] = 0; | |||
| 2059 | if (row_span_cell[i] != 0) | |||
| 2060 | row_span_cell[i]->padding[BOTTOM] += | |||
| 2061 | row_height + | |||
| 2062 | border_spacing_v; | |||
| 2063 | } | |||
| 2064 | ||||
| 2065 | row->x = 0; | |||
| 2066 | row->y = row_group_height; | |||
| 2067 | row->width = table_width; | |||
| 2068 | row->height = row_height; | |||
| 2069 | row_group_height += row_height + border_spacing_v; | |||
| 2070 | } | |||
| 2071 | row_group->x = 0; | |||
| 2072 | row_group->y = table_height; | |||
| 2073 | row_group->width = table_width; | |||
| 2074 | row_group->height = row_group_height; | |||
| 2075 | table_height += row_group_height; | |||
| 2076 | } | |||
| 2077 | /* Table height is either the height of the contents, or specified | |||
| 2078 | * height if greater */ | |||
| 2079 | table_height = max(table_height, min_height)(((table_height)>(min_height))?(table_height):(min_height) ); | |||
| 2080 | /** \todo distribute spare height over the row groups / rows / cells */ | |||
| 2081 | ||||
| 2082 | /* perform vertical alignment */ | |||
| 2083 | for (row_group = table->children; row_group; | |||
| 2084 | row_group = row_group->next) { | |||
| 2085 | for (row = row_group->children; row; row = row->next) { | |||
| 2086 | for (c = row->children; c; c = c->next) { | |||
| 2087 | enum css_vertical_align_e vertical_align; | |||
| 2088 | ||||
| 2089 | /* unextended bottom padding is in | |||
| 2090 | * c->descendant_y1, and unextended | |||
| 2091 | * cell height is in c->descendant_y0 */ | |||
| 2092 | spare_height = (c->padding[BOTTOM] - | |||
| 2093 | c->descendant_y1) + | |||
| 2094 | (c->height - c->descendant_y0); | |||
| 2095 | ||||
| 2096 | vertical_align = css_computed_vertical_align( | |||
| 2097 | c->style, &value, &unit); | |||
| 2098 | ||||
| 2099 | switch (vertical_align) { | |||
| 2100 | case CSS_VERTICAL_ALIGN_SUB: | |||
| 2101 | case CSS_VERTICAL_ALIGN_SUPER: | |||
| 2102 | case CSS_VERTICAL_ALIGN_TEXT_TOP: | |||
| 2103 | case CSS_VERTICAL_ALIGN_TEXT_BOTTOM: | |||
| 2104 | case CSS_VERTICAL_ALIGN_SET: | |||
| 2105 | case CSS_VERTICAL_ALIGN_BASELINE: | |||
| 2106 | /* todo: baseline alignment, for now | |||
| 2107 | * just use ALIGN_TOP */ | |||
| 2108 | case CSS_VERTICAL_ALIGN_TOP: | |||
| 2109 | break; | |||
| 2110 | case CSS_VERTICAL_ALIGN_MIDDLE: | |||
| 2111 | c->padding[TOP] += spare_height / 2; | |||
| 2112 | c->padding[BOTTOM] -= spare_height / 2; | |||
| 2113 | layout_move_children(c, 0, | |||
| 2114 | spare_height / 2); | |||
| 2115 | break; | |||
| 2116 | case CSS_VERTICAL_ALIGN_BOTTOM: | |||
| 2117 | c->padding[TOP] += spare_height; | |||
| 2118 | c->padding[BOTTOM] -= spare_height; | |||
| 2119 | layout_move_children(c, 0, | |||
| 2120 | spare_height); | |||
| 2121 | break; | |||
| 2122 | case CSS_VERTICAL_ALIGN_INHERIT: | |||
| 2123 | assert(0)((0) ? (void) (0) : __assert_fail ("0", "content/handlers/html/layout.c" , 2123, __extension__ __PRETTY_FUNCTION__)); | |||
| 2124 | break; | |||
| 2125 | } | |||
| 2126 | } | |||
| 2127 | } | |||
| 2128 | } | |||
| 2129 | ||||
| 2130 | /* Top and bottom margins of 'auto' are set to 0. CSS2.1 10.6.3 */ | |||
| 2131 | if (table->margin[TOP] == AUTO(-2147483647 -1)) | |||
| 2132 | table->margin[TOP] = 0; | |||
| 2133 | if (table->margin[BOTTOM] == AUTO(-2147483647 -1)) | |||
| 2134 | table->margin[BOTTOM] = 0; | |||
| 2135 | ||||
| 2136 | free(col); | |||
| 2137 | free(excess_y); | |||
| 2138 | free(row_span); | |||
| 2139 | free(row_span_cell); | |||
| 2140 | free(xs); | |||
| 2141 | ||||
| 2142 | table->width = table_width; | |||
| 2143 | table->height = table_height; | |||
| 2144 | ||||
| 2145 | return true1; | |||
| 2146 | } | |||
| 2147 | ||||
| 2148 | ||||
| 2149 | /** | |||
| 2150 | * Manimpulate box height according to CSS min-height and max-height properties | |||
| 2151 | * | |||
| 2152 | * \param unit_len_ctx CSS length conversion context for document. | |||
| 2153 | * \param box block to modify with any min-height or max-height | |||
| 2154 | * \param container containing block for absolutely positioned elements, or | |||
| 2155 | * NULL for non absolutely positioned elements. | |||
| 2156 | * \return whether the height has been changed | |||
| 2157 | */ | |||
| 2158 | static bool_Bool layout_apply_minmax_height( | |||
| 2159 | const css_unit_ctx *unit_len_ctx, | |||
| 2160 | struct box *box, | |||
| 2161 | struct box *container) | |||
| 2162 | { | |||
| 2163 | int h; | |||
| 2164 | struct box *containing_block = NULL((void*)0); | |||
| 2165 | bool_Bool updated = false0; | |||
| 2166 | ||||
| 2167 | /* Find containing block for percentage heights */ | |||
| 2168 | if (box->style != NULL((void*)0) && css_computed_position(box->style) == | |||
| 2169 | CSS_POSITION_ABSOLUTE) { | |||
| 2170 | /* Box is absolutely positioned */ | |||
| 2171 | assert(container)((container) ? (void) (0) : __assert_fail ("container", "content/handlers/html/layout.c" , 2171, __extension__ __PRETTY_FUNCTION__)); | |||
| 2172 | containing_block = container; | |||
| 2173 | } else if (box->float_container && box->style != NULL((void*)0) && | |||
| 2174 | (css_computed_float(box->style) == CSS_FLOAT_LEFT || | |||
| 2175 | css_computed_float(box->style) == CSS_FLOAT_RIGHT)) { | |||
| 2176 | /* Box is a float */ | |||
| 2177 | assert(box->parent && box->parent->parent &&((box->parent && box->parent->parent && box->parent->parent->parent) ? (void) (0) : __assert_fail ("box->parent && box->parent->parent && box->parent->parent->parent" , "content/handlers/html/layout.c", 2178, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2178 | box->parent->parent->parent)((box->parent && box->parent->parent && box->parent->parent->parent) ? (void) (0) : __assert_fail ("box->parent && box->parent->parent && box->parent->parent->parent" , "content/handlers/html/layout.c", 2178, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2179 | containing_block = box->parent->parent->parent; | |||
| 2180 | } else if (box->parent && box->parent->type != BOX_INLINE_CONTAINER) { | |||
| 2181 | /* Box is a block level element */ | |||
| 2182 | containing_block = box->parent; | |||
| 2183 | } else if (box->parent && box->parent->type == BOX_INLINE_CONTAINER) { | |||
| 2184 | /* Box is an inline block */ | |||
| 2185 | assert(box->parent->parent)((box->parent->parent) ? (void) (0) : __assert_fail ("box->parent->parent" , "content/handlers/html/layout.c", 2185, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2186 | containing_block = box->parent->parent; | |||
| 2187 | } | |||
| 2188 | ||||
| 2189 | if (box->style) { | |||
| 2190 | enum css_height_e htype = CSS_HEIGHT_AUTO; | |||
| 2191 | css_fixed value = 0; | |||
| 2192 | css_unit unit = CSS_UNIT_PX; | |||
| 2193 | ||||
| 2194 | if (containing_block) { | |||
| 2195 | htype = css_computed_height(containing_block->style, | |||
| 2196 | &value, &unit); | |||
| 2197 | } | |||
| 2198 | ||||
| 2199 | /* max-height */ | |||
| 2200 | if (css_computed_max_height(box->style, &value, &unit) == | |||
| 2201 | CSS_MAX_HEIGHT_SET) { | |||
| 2202 | if (unit == CSS_UNIT_PCT) { | |||
| 2203 | if (containing_block && | |||
| 2204 | containing_block->height != AUTO(-2147483647 -1) && | |||
| 2205 | (css_computed_position(box->style) == | |||
| 2206 | CSS_POSITION_ABSOLUTE || | |||
| 2207 | htype == CSS_HEIGHT_SET)) { | |||
| 2208 | /* Box is absolutely positioned or its | |||
| 2209 | * containing block has a valid | |||
| 2210 | * specified height. (CSS 2.1 | |||
| 2211 | * Section 10.5) */ | |||
| 2212 | h = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)) | |||
| 2213 | containing_block->height)((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)); | |||
| 2214 | if (h < box->height) { | |||
| 2215 | box->height = h; | |||
| 2216 | updated = true1; | |||
| 2217 | } | |||
| 2218 | } | |||
| 2219 | } else { | |||
| 2220 | h = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
| 2221 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
| 2222 | value, unit))((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10); | |||
| 2223 | if (h < box->height) { | |||
| 2224 | box->height = h; | |||
| 2225 | updated = true1; | |||
| 2226 | } | |||
| 2227 | } | |||
| 2228 | } | |||
| 2229 | ||||
| 2230 | /* min-height */ | |||
| 2231 | if (ns_computed_min_height(box->style, &value, &unit) == | |||
| 2232 | CSS_MIN_HEIGHT_SET) { | |||
| 2233 | if (unit == CSS_UNIT_PCT) { | |||
| 2234 | if (containing_block && | |||
| 2235 | containing_block->height != AUTO(-2147483647 -1) && | |||
| 2236 | (css_computed_position(box->style) == | |||
| 2237 | CSS_POSITION_ABSOLUTE || | |||
| 2238 | htype == CSS_HEIGHT_SET)) { | |||
| 2239 | /* Box is absolutely positioned or its | |||
| 2240 | * containing block has a valid | |||
| 2241 | * specified height. (CSS 2.1 | |||
| 2242 | * Section 10.5) */ | |||
| 2243 | h = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)) | |||
| 2244 | containing_block->height)((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)); | |||
| 2245 | if (h > box->height) { | |||
| 2246 | box->height = h; | |||
| 2247 | updated = true1; | |||
| 2248 | } | |||
| 2249 | } | |||
| 2250 | } else { | |||
| 2251 | h = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
| 2252 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
| 2253 | value, unit))((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10); | |||
| 2254 | if (h > box->height) { | |||
| 2255 | box->height = h; | |||
| 2256 | updated = true1; | |||
| 2257 | } | |||
| 2258 | } | |||
| 2259 | } | |||
| 2260 | } | |||
| 2261 | return updated; | |||
| 2262 | } | |||
| 2263 | ||||
| 2264 | ||||
| 2265 | /** | |||
| 2266 | * Layout a block which contains an object. | |||
| 2267 | * | |||
| 2268 | * \param block box of type BLOCK, INLINE_BLOCK, TABLE, or TABLE_CELL | |||
| 2269 | * \return true on success, false on memory exhaustion | |||
| 2270 | */ | |||
| 2271 | static bool_Bool layout_block_object(struct box *block) | |||
| 2272 | { | |||
| 2273 | assert(block)((block) ? (void) (0) : __assert_fail ("block", "content/handlers/html/layout.c" , 2273, __extension__ __PRETTY_FUNCTION__)); | |||
| 2274 | assert(block->type == BOX_BLOCK ||((block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_INLINE_FLEX || block->type == BOX_TABLE || block->type == BOX_TABLE_CELL ) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_INLINE_FLEX || block->type == BOX_TABLE || block->type == BOX_TABLE_CELL" , "content/handlers/html/layout.c", 2279, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2275 | block->type == BOX_FLEX ||((block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_INLINE_FLEX || block->type == BOX_TABLE || block->type == BOX_TABLE_CELL ) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_INLINE_FLEX || block->type == BOX_TABLE || block->type == BOX_TABLE_CELL" , "content/handlers/html/layout.c", 2279, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2276 | block->type == BOX_INLINE_BLOCK ||((block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_INLINE_FLEX || block->type == BOX_TABLE || block->type == BOX_TABLE_CELL ) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_INLINE_FLEX || block->type == BOX_TABLE || block->type == BOX_TABLE_CELL" , "content/handlers/html/layout.c", 2279, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2277 | block->type == BOX_INLINE_FLEX ||((block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_INLINE_FLEX || block->type == BOX_TABLE || block->type == BOX_TABLE_CELL ) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_INLINE_FLEX || block->type == BOX_TABLE || block->type == BOX_TABLE_CELL" , "content/handlers/html/layout.c", 2279, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2278 | block->type == BOX_TABLE ||((block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_INLINE_FLEX || block->type == BOX_TABLE || block->type == BOX_TABLE_CELL ) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_INLINE_FLEX || block->type == BOX_TABLE || block->type == BOX_TABLE_CELL" , "content/handlers/html/layout.c", 2279, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2279 | block->type == BOX_TABLE_CELL)((block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_INLINE_FLEX || block->type == BOX_TABLE || block->type == BOX_TABLE_CELL ) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_FLEX || block->type == BOX_INLINE_BLOCK || block->type == BOX_INLINE_FLEX || block->type == BOX_TABLE || block->type == BOX_TABLE_CELL" , "content/handlers/html/layout.c", 2279, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2280 | assert(block->object)((block->object) ? (void) (0) : __assert_fail ("block->object" , "content/handlers/html/layout.c", 2280, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2281 | ||||
| 2282 | NSLOG(layout, DEBUG, "block %p, object %p, width %i", block,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2283, }; nslog__log(&_nslog_ctx , "block %p, object %p, width %i", block, hlcache_handle_get_url (block->object), block->width); } } while(0) | |||
| 2283 | hlcache_handle_get_url(block->object), block->width)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2283, }; nslog__log(&_nslog_ctx , "block %p, object %p, width %i", block, hlcache_handle_get_url (block->object), block->width); } } while(0); | |||
| 2284 | ||||
| 2285 | if (content_can_reformat(block->object)) { | |||
| 2286 | content_reformat(block->object, false0, block->width, 1); | |||
| 2287 | } else { | |||
| 2288 | /* Non-HTML objects */ | |||
| 2289 | /* this case handled already in | |||
| 2290 | * layout_block_find_dimensions() */ | |||
| 2291 | } | |||
| 2292 | ||||
| 2293 | return true1; | |||
| 2294 | } | |||
| 2295 | ||||
| 2296 | ||||
| 2297 | /** | |||
| 2298 | * Insert a float into a container. | |||
| 2299 | * | |||
| 2300 | * \param cont block formatting context block, used to contain float | |||
| 2301 | * \param b box to add to float | |||
| 2302 | * | |||
| 2303 | * This sorts floats in order of descending bottom edges. | |||
| 2304 | */ | |||
| 2305 | static void add_float_to_container(struct box *cont, struct box *b) | |||
| 2306 | { | |||
| 2307 | struct box *box = cont->float_children; | |||
| 2308 | int b_bottom = b->y + b->height; | |||
| 2309 | ||||
| 2310 | assert(b->type == BOX_FLOAT_LEFT || b->type == BOX_FLOAT_RIGHT)((b->type == BOX_FLOAT_LEFT || b->type == BOX_FLOAT_RIGHT ) ? (void) (0) : __assert_fail ("b->type == BOX_FLOAT_LEFT || b->type == BOX_FLOAT_RIGHT" , "content/handlers/html/layout.c", 2310, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2311 | ||||
| 2312 | if (box == NULL((void*)0)) { | |||
| 2313 | /* No other float children */ | |||
| 2314 | b->next_float = NULL((void*)0); | |||
| 2315 | cont->float_children = b; | |||
| 2316 | return; | |||
| 2317 | } else if (b_bottom >= box->y + box->height) { | |||
| 2318 | /* Goes at start of list */ | |||
| 2319 | b->next_float = cont->float_children; | |||
| 2320 | cont->float_children = b; | |||
| 2321 | } else { | |||
| 2322 | struct box *prev = NULL((void*)0); | |||
| 2323 | while (box != NULL((void*)0) && b_bottom < box->y + box->height) { | |||
| 2324 | prev = box; | |||
| 2325 | box = box->next_float; | |||
| 2326 | } | |||
| 2327 | if (prev != NULL((void*)0)) { | |||
| 2328 | b->next_float = prev->next_float; | |||
| 2329 | prev->next_float = b; | |||
| 2330 | } | |||
| 2331 | } | |||
| 2332 | } | |||
| 2333 | ||||
| 2334 | ||||
| 2335 | /** | |||
| 2336 | * Split a text box. | |||
| 2337 | * | |||
| 2338 | * \param content memory pool for any new boxes | |||
| 2339 | * \param fstyle style for text in text box | |||
| 2340 | * \param split_box box with text to split | |||
| 2341 | * \param new_length new length for text in split_box, after splitting | |||
| 2342 | * \param new_width new width for text in split_box, after splitting | |||
| 2343 | * \return true on success, false on memory exhaustion | |||
| 2344 | * | |||
| 2345 | * A new box is created and inserted into the box tree after split_box, | |||
| 2346 | * containing the text after new_length excluding the initial space character. | |||
| 2347 | */ | |||
| 2348 | static bool_Bool | |||
| 2349 | layout_text_box_split(html_content *content, | |||
| 2350 | plot_font_style_t *fstyle, | |||
| 2351 | struct box *split_box, | |||
| 2352 | size_t new_length, | |||
| 2353 | int new_width) | |||
| 2354 | { | |||
| 2355 | int space_width = split_box->space; | |||
| 2356 | struct box *c2; | |||
| 2357 | const struct gui_layout_table *font_func = content->font_func; | |||
| 2358 | bool_Bool space = (split_box->text[new_length] == ' '); | |||
| 2359 | int used_length = new_length + (space ? 1 : 0); | |||
| 2360 | ||||
| 2361 | if ((space && space_width == 0) || space_width == UNKNOWN_WIDTH2147483647) { | |||
| 2362 | /* We're need to add a space, and we don't know how big | |||
| 2363 | * it's to be, OR we have a space of unknown width anyway; | |||
| 2364 | * Calculate space width */ | |||
| 2365 | font_func->width(fstyle, " ", 1, &space_width); | |||
| 2366 | } | |||
| 2367 | ||||
| 2368 | if (split_box->space == UNKNOWN_WIDTH2147483647) | |||
| 2369 | split_box->space = space_width; | |||
| 2370 | if (!space) | |||
| 2371 | space_width = 0; | |||
| 2372 | ||||
| 2373 | /* Create clone of split_box, c2 */ | |||
| 2374 | c2 = talloc_memdup(content->bctx, split_box, sizeof *c2)_talloc_memdup(content->bctx, split_box, sizeof *c2, "content/handlers/html/layout.c" ":" "2374"); | |||
| 2375 | if (!c2) | |||
| 2376 | return false0; | |||
| 2377 | c2->flags |= CLONE; | |||
| 2378 | ||||
| 2379 | /* Set remaining text in c2 */ | |||
| 2380 | c2->text += used_length; | |||
| 2381 | ||||
| 2382 | /* Set c2 according to the remaining text */ | |||
| 2383 | c2->width -= new_width + space_width; | |||
| 2384 | c2->flags &= ~MEASURED; /* width has been estimated */ | |||
| 2385 | c2->length = split_box->length - used_length; | |||
| 2386 | ||||
| 2387 | /* Update split_box for its reduced text */ | |||
| 2388 | split_box->width = new_width; | |||
| 2389 | split_box->flags |= MEASURED; | |||
| 2390 | split_box->length = new_length; | |||
| 2391 | split_box->space = space_width; | |||
| 2392 | ||||
| 2393 | /* Insert c2 into box list */ | |||
| 2394 | c2->next = split_box->next; | |||
| 2395 | split_box->next = c2; | |||
| 2396 | c2->prev = split_box; | |||
| 2397 | if (c2->next) | |||
| 2398 | c2->next->prev = c2; | |||
| 2399 | else | |||
| 2400 | c2->parent->last = c2; | |||
| 2401 | ||||
| 2402 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2407, }; nslog__log(&_nslog_ctx , "split_box %p len: %" "zu" " \"%.*s\"", split_box, split_box ->length, (int)split_box->length, split_box->text); } } while(0) | |||
| 2403 | "split_box %p len: %" PRIsizet " \"%.*s\"",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2407, }; nslog__log(&_nslog_ctx , "split_box %p len: %" "zu" " \"%.*s\"", split_box, split_box ->length, (int)split_box->length, split_box->text); } } while(0) | |||
| 2404 | split_box,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2407, }; nslog__log(&_nslog_ctx , "split_box %p len: %" "zu" " \"%.*s\"", split_box, split_box ->length, (int)split_box->length, split_box->text); } } while(0) | |||
| 2405 | split_box->length,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2407, }; nslog__log(&_nslog_ctx , "split_box %p len: %" "zu" " \"%.*s\"", split_box, split_box ->length, (int)split_box->length, split_box->text); } } while(0) | |||
| 2406 | (int)split_box->length,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2407, }; nslog__log(&_nslog_ctx , "split_box %p len: %" "zu" " \"%.*s\"", split_box, split_box ->length, (int)split_box->length, split_box->text); } } while(0) | |||
| 2407 | split_box->text)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2407, }; nslog__log(&_nslog_ctx , "split_box %p len: %" "zu" " \"%.*s\"", split_box, split_box ->length, (int)split_box->length, split_box->text); } } while(0); | |||
| 2408 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2413, }; nslog__log(&_nslog_ctx , " new_box %p len: %" "zu" " \"%.*s\"", c2, c2->length, ( int)c2->length, c2->text); } } while(0) | |||
| 2409 | " new_box %p len: %" PRIsizet " \"%.*s\"",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2413, }; nslog__log(&_nslog_ctx , " new_box %p len: %" "zu" " \"%.*s\"", c2, c2->length, ( int)c2->length, c2->text); } } while(0) | |||
| 2410 | c2,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2413, }; nslog__log(&_nslog_ctx , " new_box %p len: %" "zu" " \"%.*s\"", c2, c2->length, ( int)c2->length, c2->text); } } while(0) | |||
| 2411 | c2->length,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2413, }; nslog__log(&_nslog_ctx , " new_box %p len: %" "zu" " \"%.*s\"", c2, c2->length, ( int)c2->length, c2->text); } } while(0) | |||
| 2412 | (int)c2->length,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2413, }; nslog__log(&_nslog_ctx , " new_box %p len: %" "zu" " \"%.*s\"", c2, c2->length, ( int)c2->length, c2->text); } } while(0) | |||
| 2413 | c2->text)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2413, }; nslog__log(&_nslog_ctx , " new_box %p len: %" "zu" " \"%.*s\"", c2, c2->length, ( int)c2->length, c2->text); } } while(0); | |||
| 2414 | ||||
| 2415 | return true1; | |||
| 2416 | } | |||
| 2417 | ||||
| 2418 | ||||
| 2419 | /** | |||
| 2420 | * Compute dimensions of box, margins, paddings, and borders for a floating | |||
| 2421 | * element using shrink-to-fit. Also used for inline-blocks. | |||
| 2422 | * | |||
| 2423 | * \param unit_len_ctx CSS length conversion context for document. | |||
| 2424 | * \param available_width Max width available in pixels | |||
| 2425 | * \param style Box's style | |||
| 2426 | * \param box Box for which to find dimensions | |||
| 2427 | * Box margins, borders, paddings, width and | |||
| 2428 | * height are updated. | |||
| 2429 | */ | |||
| 2430 | static void | |||
| 2431 | layout_float_find_dimensions( | |||
| 2432 | const css_unit_ctx *unit_len_ctx, | |||
| 2433 | int available_width, | |||
| 2434 | const css_computed_style *style, | |||
| 2435 | struct box *box) | |||
| 2436 | { | |||
| 2437 | int width, height, max_width, min_width, max_height, min_height; | |||
| 2438 | int *margin = box->margin; | |||
| 2439 | int *padding = box->padding; | |||
| 2440 | struct box_border *border = box->border; | |||
| 2441 | enum css_overflow_e overflow_x = css_computed_overflow_x(style); | |||
| 2442 | enum css_overflow_e overflow_y = css_computed_overflow_y(style); | |||
| 2443 | int scrollbar_width_x = | |||
| 2444 | (overflow_x == CSS_OVERFLOW_SCROLL || | |||
| 2445 | overflow_x == CSS_OVERFLOW_AUTO) ? | |||
| 2446 | SCROLLBAR_WIDTH16 : 0; | |||
| 2447 | int scrollbar_width_y = | |||
| 2448 | (overflow_y == CSS_OVERFLOW_SCROLL || | |||
| 2449 | overflow_y == CSS_OVERFLOW_AUTO) ? | |||
| 2450 | SCROLLBAR_WIDTH16 : 0; | |||
| 2451 | ||||
| 2452 | layout_find_dimensions(unit_len_ctx, available_width, -1, box, style, | |||
| 2453 | &width, &height, &max_width, &min_width, | |||
| 2454 | &max_height, &min_height, margin, padding, border); | |||
| 2455 | ||||
| 2456 | if (margin[LEFT] == AUTO(-2147483647 -1)) | |||
| 2457 | margin[LEFT] = 0; | |||
| 2458 | if (margin[RIGHT] == AUTO(-2147483647 -1)) | |||
| 2459 | margin[RIGHT] = 0; | |||
| 2460 | ||||
| 2461 | if (box->gadget == NULL((void*)0)) { | |||
| 2462 | padding[RIGHT] += scrollbar_width_y; | |||
| 2463 | padding[BOTTOM] += scrollbar_width_x; | |||
| 2464 | } | |||
| 2465 | ||||
| 2466 | if (box->object && !(box->flags & REPLACE_DIM) && | |||
| 2467 | content_get_type(box->object) != CONTENT_HTML) { | |||
| 2468 | /* Floating replaced element, with intrinsic width or height. | |||
| 2469 | * See 10.3.6 and 10.6.2 */ | |||
| 2470 | layout_get_object_dimensions(box, &width, &height, | |||
| 2471 | min_width, max_width, min_height, max_height); | |||
| 2472 | } else if (box->gadget && (box->gadget->type == GADGET_TEXTBOX || | |||
| 2473 | box->gadget->type == GADGET_PASSWORD || | |||
| 2474 | box->gadget->type == GADGET_FILE || | |||
| 2475 | box->gadget->type == GADGET_TEXTAREA)) { | |||
| 2476 | css_fixed size = 0; | |||
| 2477 | css_unit unit = CSS_UNIT_EM; | |||
| 2478 | ||||
| 2479 | /* Give sensible dimensions to gadgets, with auto width/height, | |||
| 2480 | * that don't shrink to fit contained text. */ | |||
| 2481 | assert(box->style)((box->style) ? (void) (0) : __assert_fail ("box->style" , "content/handlers/html/layout.c", 2481, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2482 | ||||
| 2483 | if (box->gadget->type == GADGET_TEXTBOX || | |||
| 2484 | box->gadget->type == GADGET_PASSWORD || | |||
| 2485 | box->gadget->type == GADGET_FILE) { | |||
| 2486 | if (width == AUTO(-2147483647 -1)) { | |||
| 2487 | size = INTTOFIX(10)(css_int_to_fixed(10)); | |||
| 2488 | width = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
| 2489 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
| 2490 | size, unit))((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10); | |||
| 2491 | } | |||
| 2492 | if (box->gadget->type == GADGET_FILE && | |||
| 2493 | height == AUTO(-2147483647 -1)) { | |||
| 2494 | size = FLTTOFIX(1.5)((css_fixed) ((1.5) * (float) (1 << 10))); | |||
| 2495 | height = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
| 2496 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
| 2497 | size, unit))((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10); | |||
| 2498 | } | |||
| 2499 | } | |||
| 2500 | if (box->gadget->type == GADGET_TEXTAREA) { | |||
| 2501 | if (width == AUTO(-2147483647 -1)) { | |||
| 2502 | size = INTTOFIX(10)(css_int_to_fixed(10)); | |||
| 2503 | width = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
| 2504 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
| 2505 | size, unit))((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10); | |||
| 2506 | } | |||
| 2507 | if (height == AUTO(-2147483647 -1)) { | |||
| 2508 | size = INTTOFIX(4)(css_int_to_fixed(4)); | |||
| 2509 | height = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
| 2510 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
| 2511 | size, unit))((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10); | |||
| 2512 | } | |||
| 2513 | } | |||
| 2514 | } else if (width == AUTO(-2147483647 -1)) { | |||
| 2515 | /* CSS 2.1 section 10.3.5 */ | |||
| 2516 | width = min(max(box->min_width, available_width),((((((box->min_width)>(available_width))?(box->min_width ):(available_width)))<(box->max_width))?((((box->min_width )>(available_width))?(box->min_width):(available_width) )):(box->max_width)) | |||
| 2517 | box->max_width)((((((box->min_width)>(available_width))?(box->min_width ):(available_width)))<(box->max_width))?((((box->min_width )>(available_width))?(box->min_width):(available_width) )):(box->max_width)); | |||
| 2518 | ||||
| 2519 | /* width includes margin, borders and padding */ | |||
| 2520 | if (width == available_width) { | |||
| 2521 | width -= box->margin[LEFT] + box->border[LEFT].width + | |||
| 2522 | box->padding[LEFT] + | |||
| 2523 | box->padding[RIGHT] + | |||
| 2524 | box->border[RIGHT].width + | |||
| 2525 | box->margin[RIGHT]; | |||
| 2526 | } else { | |||
| 2527 | /* width was obtained from a min_width or max_width | |||
| 2528 | * value, so need to use the same method for calculating | |||
| 2529 | * mbp as was used in layout_minmax_block() */ | |||
| 2530 | int fixed = 0; | |||
| 2531 | float frac = 0; | |||
| 2532 | calculate_mbp_width(unit_len_ctx, box->style, LEFT, | |||
| 2533 | true1, true1, true1, &fixed, &frac); | |||
| 2534 | calculate_mbp_width(unit_len_ctx, box->style, RIGHT, | |||
| 2535 | true1, true1, true1, &fixed, &frac); | |||
| 2536 | if (fixed < 0) | |||
| 2537 | fixed = 0; | |||
| 2538 | ||||
| 2539 | width -= fixed; | |||
| 2540 | } | |||
| 2541 | ||||
| 2542 | if (max_width >= 0 && width > max_width) width = max_width; | |||
| 2543 | if (min_width > 0 && width < min_width) width = min_width; | |||
| 2544 | ||||
| 2545 | } else { | |||
| 2546 | if (max_width >= 0 && width > max_width) width = max_width; | |||
| 2547 | if (min_width > 0 && width < min_width) width = min_width; | |||
| 2548 | width -= scrollbar_width_y; | |||
| 2549 | } | |||
| 2550 | ||||
| 2551 | box->width = width; | |||
| 2552 | box->height = height; | |||
| 2553 | ||||
| 2554 | if (margin[TOP] == AUTO(-2147483647 -1)) | |||
| 2555 | margin[TOP] = 0; | |||
| 2556 | if (margin[BOTTOM] == AUTO(-2147483647 -1)) | |||
| 2557 | margin[BOTTOM] = 0; | |||
| 2558 | } | |||
| 2559 | ||||
| 2560 | ||||
| 2561 | /** | |||
| 2562 | * Layout the contents of a float or inline block. | |||
| 2563 | * | |||
| 2564 | * \param b float or inline block box | |||
| 2565 | * \param width available width | |||
| 2566 | * \param content memory pool for any new boxes | |||
| 2567 | * \return true on success, false on memory exhaustion | |||
| 2568 | */ | |||
| 2569 | static bool_Bool layout_float(struct box *b, int width, html_content *content) | |||
| 2570 | { | |||
| 2571 | assert(b->type == BOX_TABLE ||((b->type == BOX_TABLE || b->type == BOX_BLOCK || b-> type == BOX_INLINE_BLOCK || b->type == BOX_FLEX || b->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("b->type == BOX_TABLE || b->type == BOX_BLOCK || b->type == BOX_INLINE_BLOCK || b->type == BOX_FLEX || b->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 2575, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2572 | b->type == BOX_BLOCK ||((b->type == BOX_TABLE || b->type == BOX_BLOCK || b-> type == BOX_INLINE_BLOCK || b->type == BOX_FLEX || b->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("b->type == BOX_TABLE || b->type == BOX_BLOCK || b->type == BOX_INLINE_BLOCK || b->type == BOX_FLEX || b->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 2575, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2573 | b->type == BOX_INLINE_BLOCK ||((b->type == BOX_TABLE || b->type == BOX_BLOCK || b-> type == BOX_INLINE_BLOCK || b->type == BOX_FLEX || b->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("b->type == BOX_TABLE || b->type == BOX_BLOCK || b->type == BOX_INLINE_BLOCK || b->type == BOX_FLEX || b->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 2575, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2574 | b->type == BOX_FLEX ||((b->type == BOX_TABLE || b->type == BOX_BLOCK || b-> type == BOX_INLINE_BLOCK || b->type == BOX_FLEX || b->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("b->type == BOX_TABLE || b->type == BOX_BLOCK || b->type == BOX_INLINE_BLOCK || b->type == BOX_FLEX || b->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 2575, __extension__ __PRETTY_FUNCTION__ )) | |||
| 2575 | b->type == BOX_INLINE_FLEX)((b->type == BOX_TABLE || b->type == BOX_BLOCK || b-> type == BOX_INLINE_BLOCK || b->type == BOX_FLEX || b->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("b->type == BOX_TABLE || b->type == BOX_BLOCK || b->type == BOX_INLINE_BLOCK || b->type == BOX_FLEX || b->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 2575, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2576 | layout_float_find_dimensions(&content->unit_len_ctx, width, b->style, b); | |||
| 2577 | if (b->type == BOX_TABLE || b->type == BOX_INLINE_FLEX) { | |||
| 2578 | if (b->type == BOX_TABLE) { | |||
| 2579 | if (!layout_table(b, width, content)) | |||
| 2580 | return false0; | |||
| 2581 | } else { | |||
| 2582 | if (!layout_flex(b, width, content)) | |||
| 2583 | return false0; | |||
| 2584 | } | |||
| 2585 | if (b->margin[LEFT] == AUTO(-2147483647 -1)) | |||
| 2586 | b->margin[LEFT] = 0; | |||
| 2587 | if (b->margin[RIGHT] == AUTO(-2147483647 -1)) | |||
| 2588 | b->margin[RIGHT] = 0; | |||
| 2589 | if (b->margin[TOP] == AUTO(-2147483647 -1)) | |||
| 2590 | b->margin[TOP] = 0; | |||
| 2591 | if (b->margin[BOTTOM] == AUTO(-2147483647 -1)) | |||
| 2592 | b->margin[BOTTOM] = 0; | |||
| 2593 | } else { | |||
| 2594 | return layout_block_context(b, -1, content); | |||
| 2595 | } | |||
| 2596 | return true1; | |||
| 2597 | } | |||
| 2598 | ||||
| 2599 | ||||
| 2600 | /** | |||
| 2601 | * Position a float in the first available space. | |||
| 2602 | * | |||
| 2603 | * \param c float box to position | |||
| 2604 | * \param width available width | |||
| 2605 | * \param cx x coordinate relative to cont to place float right of | |||
| 2606 | * \param y y coordinate relative to cont to place float below | |||
| 2607 | * \param cont ancestor box which defines horizontal space, for floats | |||
| 2608 | */ | |||
| 2609 | static void | |||
| 2610 | place_float_below(struct box *c, int width, int cx, int y, struct box *cont) | |||
| 2611 | { | |||
| 2612 | int x0, x1, yy; | |||
| 2613 | struct box *left; | |||
| 2614 | struct box *right; | |||
| 2615 | ||||
| 2616 | yy = y > cont->cached_place_below_level ? | |||
| 2617 | y : cont->cached_place_below_level; | |||
| 2618 | ||||
| 2619 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2621, }; nslog__log(&_nslog_ctx , "c %p, width %i, cx %i, y %i, cont %p", c, width, cx, y, cont ); } } while(0) | |||
| 2620 | "c %p, width %i, cx %i, y %i, cont %p", c,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2621, }; nslog__log(&_nslog_ctx , "c %p, width %i, cx %i, y %i, cont %p", c, width, cx, y, cont ); } } while(0) | |||
| 2621 | width, cx, y, cont)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2621, }; nslog__log(&_nslog_ctx , "c %p, width %i, cx %i, y %i, cont %p", c, width, cx, y, cont ); } } while(0); | |||
| 2622 | ||||
| 2623 | do { | |||
| 2624 | y = yy; | |||
| 2625 | x0 = cx; | |||
| 2626 | x1 = cx + width; | |||
| 2627 | find_sides(cont->float_children, y, y + c->height, &x0, &x1, | |||
| 2628 | &left, &right); | |||
| 2629 | if (left != 0 && right != 0) { | |||
| 2630 | yy = (left->y + left->height < | |||
| 2631 | right->y + right->height ? | |||
| 2632 | left->y + left->height : | |||
| 2633 | right->y + right->height); | |||
| 2634 | } else if (left == 0 && right != 0) { | |||
| 2635 | yy = right->y + right->height; | |||
| 2636 | } else if (left != 0 && right == 0) { | |||
| 2637 | yy = left->y + left->height; | |||
| 2638 | } | |||
| 2639 | } while ((left != 0 || right != 0) && (c->width > x1 - x0)); | |||
| 2640 | ||||
| 2641 | if (c->type == BOX_FLOAT_LEFT) { | |||
| 2642 | c->x = x0; | |||
| 2643 | } else { | |||
| 2644 | c->x = x1 - c->width; | |||
| 2645 | } | |||
| 2646 | c->y = y; | |||
| 2647 | cont->cached_place_below_level = y; | |||
| 2648 | } | |||
| 2649 | ||||
| 2650 | ||||
| 2651 | /** | |||
| 2652 | * Calculate line height from a style. | |||
| 2653 | */ | |||
| 2654 | static int line_height( | |||
| 2655 | const css_unit_ctx *unit_len_ctx, | |||
| 2656 | const css_computed_style *style) | |||
| 2657 | { | |||
| 2658 | enum css_line_height_e lhtype; | |||
| 2659 | css_fixed lhvalue = 0; | |||
| 2660 | css_unit lhunit = CSS_UNIT_PX; | |||
| 2661 | css_fixed line_height; | |||
| 2662 | ||||
| 2663 | assert(style)((style) ? (void) (0) : __assert_fail ("style", "content/handlers/html/layout.c" , 2663, __extension__ __PRETTY_FUNCTION__)); | |||
| 2664 | ||||
| 2665 | lhtype = css_computed_line_height(style, &lhvalue, &lhunit); | |||
| 2666 | if (lhtype == CSS_LINE_HEIGHT_NORMAL) { | |||
| 2667 | /* Normal => use a constant of 1.3 * font-size */ | |||
| 2668 | lhvalue = FLTTOFIX(1.3)((css_fixed) ((1.3) * (float) (1 << 10))); | |||
| 2669 | lhtype = CSS_LINE_HEIGHT_NUMBER; | |||
| 2670 | } | |||
| 2671 | ||||
| 2672 | if (lhtype == CSS_LINE_HEIGHT_NUMBER || | |||
| 2673 | lhunit == CSS_UNIT_PCT) { | |||
| 2674 | line_height = css_unit_len2device_px(style, unit_len_ctx, | |||
| 2675 | lhvalue, CSS_UNIT_EM); | |||
| 2676 | ||||
| 2677 | if (lhtype != CSS_LINE_HEIGHT_NUMBER) | |||
| 2678 | line_height = FDIV(line_height, F_100)(css_divide_fixed((line_height), (0x00019000))); | |||
| 2679 | } else { | |||
| 2680 | assert(lhunit != CSS_UNIT_PCT)((lhunit != CSS_UNIT_PCT) ? (void) (0) : __assert_fail ("lhunit != CSS_UNIT_PCT" , "content/handlers/html/layout.c", 2680, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2681 | ||||
| 2682 | line_height = css_unit_len2device_px(style, unit_len_ctx, | |||
| 2683 | lhvalue, lhunit); | |||
| 2684 | } | |||
| 2685 | ||||
| 2686 | return FIXTOINT(line_height)((line_height) >> 10); | |||
| 2687 | } | |||
| 2688 | ||||
| 2689 | ||||
| 2690 | /** | |||
| 2691 | * Position a line of boxes in inline formatting context. | |||
| 2692 | * | |||
| 2693 | * \param first box at start of line | |||
| 2694 | * \param width available width on input, updated with actual width on output | |||
| 2695 | * (may be incorrect if the line gets split?) | |||
| 2696 | * \param y coordinate of top of line, updated on exit to bottom | |||
| 2697 | * \param cx coordinate of left of line relative to cont | |||
| 2698 | * \param cy coordinate of top of line relative to cont | |||
| 2699 | * \param cont ancestor box which defines horizontal space, for floats | |||
| 2700 | * \param indent apply any first-line indent | |||
| 2701 | * \param has_text_children at least one TEXT in the inline_container | |||
| 2702 | * \param next_box updated to first box for next line, or 0 at end | |||
| 2703 | * \param content memory pool for any new boxes | |||
| 2704 | * \return true on success, false on memory exhaustion | |||
| 2705 | */ | |||
| 2706 | static bool_Bool | |||
| 2707 | layout_line(struct box *first, | |||
| 2708 | int *width, | |||
| 2709 | int *y, | |||
| 2710 | int cx, | |||
| 2711 | int cy, | |||
| 2712 | struct box *cont, | |||
| 2713 | bool_Bool indent, | |||
| 2714 | bool_Bool has_text_children, | |||
| 2715 | html_content *content, | |||
| 2716 | struct box **next_box) | |||
| 2717 | { | |||
| 2718 | int height, used_height; | |||
| 2719 | int x0 = 0; | |||
| 2720 | int x1 = *width; | |||
| 2721 | int x, h, x_previous; | |||
| 2722 | int fy = cy; | |||
| 2723 | struct box *left; | |||
| 2724 | struct box *right; | |||
| 2725 | struct box *b; | |||
| 2726 | struct box *split_box = 0; | |||
| 2727 | struct box *d; | |||
| 2728 | struct box *br_box = 0; | |||
| 2729 | bool_Bool move_y = false0; | |||
| 2730 | bool_Bool place_below = false0; | |||
| 2731 | int space_before = 0, space_after = 0; | |||
| 2732 | unsigned int inline_count = 0; | |||
| 2733 | unsigned int i; | |||
| 2734 | const struct gui_layout_table *font_func = content->font_func; | |||
| 2735 | plot_font_style_t fstyle; | |||
| 2736 | ||||
| 2737 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2745, }; nslog__log(&_nslog_ctx , "first %p, first->text '%.*s', width %i, y %i, cx %i, cy %i" , first, (int)first->length, first->text, *width, *y, cx , cy); } } while(0) | |||
| 2738 | "first %p, first->text '%.*s', width %i, y %i, cx %i, cy %i",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2745, }; nslog__log(&_nslog_ctx , "first %p, first->text '%.*s', width %i, y %i, cx %i, cy %i" , first, (int)first->length, first->text, *width, *y, cx , cy); } } while(0) | |||
| 2739 | first,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2745, }; nslog__log(&_nslog_ctx , "first %p, first->text '%.*s', width %i, y %i, cx %i, cy %i" , first, (int)first->length, first->text, *width, *y, cx , cy); } } while(0) | |||
| 2740 | (int)first->length,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2745, }; nslog__log(&_nslog_ctx , "first %p, first->text '%.*s', width %i, y %i, cx %i, cy %i" , first, (int)first->length, first->text, *width, *y, cx , cy); } } while(0) | |||
| 2741 | first->text,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2745, }; nslog__log(&_nslog_ctx , "first %p, first->text '%.*s', width %i, y %i, cx %i, cy %i" , first, (int)first->length, first->text, *width, *y, cx , cy); } } while(0) | |||
| 2742 | *width,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2745, }; nslog__log(&_nslog_ctx , "first %p, first->text '%.*s', width %i, y %i, cx %i, cy %i" , first, (int)first->length, first->text, *width, *y, cx , cy); } } while(0) | |||
| 2743 | *y,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2745, }; nslog__log(&_nslog_ctx , "first %p, first->text '%.*s', width %i, y %i, cx %i, cy %i" , first, (int)first->length, first->text, *width, *y, cx , cy); } } while(0) | |||
| 2744 | cx,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2745, }; nslog__log(&_nslog_ctx , "first %p, first->text '%.*s', width %i, y %i, cx %i, cy %i" , first, (int)first->length, first->text, *width, *y, cx , cy); } } while(0) | |||
| 2745 | cy)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2745, }; nslog__log(&_nslog_ctx , "first %p, first->text '%.*s', width %i, y %i, cx %i, cy %i" , first, (int)first->length, first->text, *width, *y, cx , cy); } } while(0); | |||
| 2746 | ||||
| 2747 | /* find sides at top of line */ | |||
| 2748 | x0 += cx; | |||
| 2749 | x1 += cx; | |||
| 2750 | find_sides(cont->float_children, cy, cy, &x0, &x1, &left, &right); | |||
| 2751 | x0 -= cx; | |||
| 2752 | x1 -= cx; | |||
| 2753 | ||||
| 2754 | if (indent) | |||
| 2755 | x0 += layout_text_indent(&content->unit_len_ctx, | |||
| 2756 | first->parent->parent->style, *width); | |||
| 2757 | ||||
| 2758 | if (x1 < x0) | |||
| 2759 | x1 = x0; | |||
| 2760 | ||||
| 2761 | /* get minimum line height from containing block. | |||
| 2762 | * this is the line-height if there are text children and also in the | |||
| 2763 | * case of an initially empty text input */ | |||
| 2764 | if (has_text_children || first->parent->parent->gadget) | |||
| 2765 | used_height = height = line_height(&content->unit_len_ctx, | |||
| 2766 | first->parent->parent->style); | |||
| 2767 | else | |||
| 2768 | /* inline containers with no text are usually for layout and | |||
| 2769 | * look better with no minimum line-height */ | |||
| 2770 | used_height = height = 0; | |||
| 2771 | ||||
| 2772 | /* pass 1: find height of line assuming sides at top of line: loop | |||
| 2773 | * body executed at least once | |||
| 2774 | * keep in sync with the loop in layout_minmax_line() */ | |||
| 2775 | ||||
| 2776 | NSLOG(layout, DEBUG, "x0 %i, x1 %i, x1 - x0 %i", x0, x1, x1 - x0)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2776, }; nslog__log(&_nslog_ctx , "x0 %i, x1 %i, x1 - x0 %i", x0, x1, x1 - x0); } } while(0); | |||
| 2777 | ||||
| 2778 | ||||
| 2779 | for (x = 0, b = first; x <= x1 - x0 && b != 0; b = b->next) { | |||
| 2780 | int min_width, max_width, min_height, max_height; | |||
| 2781 | ||||
| 2782 | assert(lh__box_is_inline_content(b))((lh__box_is_inline_content(b)) ? (void) (0) : __assert_fail ( "lh__box_is_inline_content(b)", "content/handlers/html/layout.c" , 2782, __extension__ __PRETTY_FUNCTION__)); | |||
| 2783 | ||||
| 2784 | NSLOG(layout, DEBUG, "pass 1: b %p, x %i", b, x)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 2784, }; nslog__log(&_nslog_ctx , "pass 1: b %p, x %i", b, x); } } while(0); | |||
| 2785 | ||||
| 2786 | if (b->type == BOX_BR) | |||
| 2787 | break; | |||
| 2788 | ||||
| 2789 | if (lh__box_is_float_box(b)) | |||
| 2790 | continue; | |||
| 2791 | if (b->type == BOX_INLINE_BLOCK && | |||
| 2792 | (css_computed_position(b->style) == | |||
| 2793 | CSS_POSITION_ABSOLUTE || | |||
| 2794 | css_computed_position(b->style) == | |||
| 2795 | CSS_POSITION_FIXED)) | |||
| 2796 | continue; | |||
| 2797 | ||||
| 2798 | assert(b->style != NULL)((b->style != ((void*)0)) ? (void) (0) : __assert_fail ("b->style != NULL" , "content/handlers/html/layout.c", 2798, __extension__ __PRETTY_FUNCTION__ )); | |||
| 2799 | font_plot_style_from_css(&content->unit_len_ctx, b->style, &fstyle); | |||
| 2800 | ||||
| 2801 | x += space_after; | |||
| 2802 | ||||
| 2803 | if (b->type == BOX_INLINE_BLOCK || | |||
| 2804 | b->type == BOX_INLINE_FLEX) { | |||
| 2805 | if (b->max_width != UNKNOWN_WIDTH2147483647) | |||
| 2806 | if (!layout_float(b, *width, content)) | |||
| 2807 | return false0; | |||
| 2808 | h = b->border[TOP].width + b->padding[TOP] + b->height + | |||
| 2809 | b->padding[BOTTOM] + | |||
| 2810 | b->border[BOTTOM].width; | |||
| 2811 | if (height < h) | |||
| 2812 | height = h; | |||
| 2813 | x += b->margin[LEFT] + b->border[LEFT].width + | |||
| 2814 | b->padding[LEFT] + b->width + | |||
| 2815 | b->padding[RIGHT] + | |||
| 2816 | b->border[RIGHT].width + | |||
| 2817 | b->margin[RIGHT]; | |||
| 2818 | space_after = 0; | |||
| 2819 | continue; | |||
| 2820 | } | |||
| 2821 | ||||
| 2822 | if (b->type == BOX_INLINE) { | |||
| 2823 | /* calculate borders, margins, and padding */ | |||
| 2824 | layout_find_dimensions(&content->unit_len_ctx, | |||
| 2825 | *width, -1, b, b->style, 0, 0, 0, 0, | |||
| 2826 | 0, 0, b->margin, b->padding, b->border); | |||
| 2827 | for (i = 0; i != 4; i++) | |||
| 2828 | if (b->margin[i] == AUTO(-2147483647 -1)) | |||
| 2829 | b->margin[i] = 0; | |||
| 2830 | x += b->margin[LEFT] + b->border[LEFT].width + | |||
| 2831 | b->padding[LEFT]; | |||
| 2832 | if (b->inline_end) { | |||
| 2833 | b->inline_end->margin[RIGHT] = b->margin[RIGHT]; | |||
| 2834 | b->inline_end->padding[RIGHT] = | |||
| 2835 | b->padding[RIGHT]; | |||
| 2836 | b->inline_end->border[RIGHT] = | |||
| 2837 | b->border[RIGHT]; | |||
| 2838 | } else { | |||
| 2839 | x += b->padding[RIGHT] + | |||
| 2840 | b->border[RIGHT].width + | |||
| 2841 | b->margin[RIGHT]; | |||
| 2842 | } | |||
| 2843 | } else if (b->type == BOX_INLINE_END) { | |||
| 2844 | b->width = 0; | |||
| 2845 | if (b->space == UNKNOWN_WIDTH2147483647) { | |||
| 2846 | font_func->width(&fstyle, " ", 1, &b->space); | |||
| 2847 | /** \todo handle errors */ | |||
| 2848 | } | |||
| 2849 | space_after = b->space; | |||
| 2850 | ||||
| 2851 | x += b->padding[RIGHT] + b->border[RIGHT].width + | |||
| 2852 | b->margin[RIGHT]; | |||
| 2853 | continue; | |||
| 2854 | } | |||
| 2855 | ||||
| 2856 | if (lh__box_is_replace(b) == false0) { | |||
| 2857 | /* inline non-replaced, 10.3.1 and 10.6.1 */ | |||
| 2858 | b->height = line_height(&content->unit_len_ctx, | |||
| 2859 | b->style ? b->style : | |||
| 2860 | b->parent->parent->style); | |||
| 2861 | if (height < b->height) | |||
| 2862 | height = b->height; | |||
| 2863 | ||||
| 2864 | if (!b->text) { | |||
| 2865 | b->width = 0; | |||
| 2866 | space_after = 0; | |||
| 2867 | continue; | |||
| 2868 | } | |||
| 2869 | ||||
| 2870 | if (b->width == UNKNOWN_WIDTH2147483647) { | |||
| 2871 | /** \todo handle errors */ | |||
| 2872 | ||||
| 2873 | /* If it's a select element, we must use the | |||
| 2874 | * width of the widest option text */ | |||
| 2875 | if (b->parent->parent->gadget && | |||
| 2876 | b->parent->parent->gadget->type | |||
| 2877 | == GADGET_SELECT) { | |||
| 2878 | int opt_maxwidth = 0; | |||
| 2879 | struct form_option *o; | |||
| 2880 | ||||
| 2881 | for (o = b->parent->parent->gadget-> | |||
| 2882 | data.select.items; o; | |||
| 2883 | o = o->next) { | |||
| 2884 | int opt_width; | |||
| 2885 | font_func->width(&fstyle, | |||
| 2886 | o->text, | |||
| 2887 | strlen(o->text), | |||
| 2888 | &opt_width); | |||
| 2889 | ||||
| 2890 | if (opt_maxwidth < opt_width) | |||
| 2891 | opt_maxwidth =opt_width; | |||
| 2892 | } | |||
| 2893 | b->width = opt_maxwidth; | |||
| 2894 | if (nsoption_bool(core_select_menu)(nsoptions[NSOPTION_core_select_menu].value.b)) | |||
| 2895 | b->width += SCROLLBAR_WIDTH16; | |||
| 2896 | } else { | |||
| 2897 | font_func->width(&fstyle, b->text, | |||
| 2898 | b->length, &b->width); | |||
| 2899 | b->flags |= MEASURED; | |||
| 2900 | } | |||
| 2901 | } | |||
| 2902 | ||||
| 2903 | /* If the current text has not been measured (i.e. its | |||
| 2904 | * width was estimated after splitting), and it fits on | |||
| 2905 | * the line, measure it properly, so next box is placed | |||
| 2906 | * correctly. */ | |||
| 2907 | if (b->text && (x + b->width < x1 - x0) && | |||
| 2908 | !(b->flags & MEASURED) && | |||
| 2909 | b->next) { | |||
| 2910 | font_func->width(&fstyle, b->text, | |||
| 2911 | b->length, &b->width); | |||
| 2912 | b->flags |= MEASURED; | |||
| 2913 | } | |||
| 2914 | ||||
| 2915 | x += b->width; | |||
| 2916 | if (b->space == UNKNOWN_WIDTH2147483647) { | |||
| 2917 | font_func->width(&fstyle, " ", 1, &b->space); | |||
| 2918 | /** \todo handle errors */ | |||
| 2919 | } | |||
| 2920 | space_after = b->space; | |||
| 2921 | continue; | |||
| 2922 | } | |||
| 2923 | ||||
| 2924 | space_after = 0; | |||
| 2925 | ||||
| 2926 | /* inline replaced, 10.3.2 and 10.6.2 */ | |||
| 2927 | assert(b->style)((b->style) ? (void) (0) : __assert_fail ("b->style", "content/handlers/html/layout.c" , 2927, __extension__ __PRETTY_FUNCTION__)); | |||
| 2928 | ||||
| 2929 | layout_find_dimensions(&content->unit_len_ctx, | |||
| 2930 | *width, -1, b, b->style, | |||
| 2931 | &b->width, &b->height, | |||
| 2932 | &max_width, &min_width, | |||
| 2933 | &max_height, &min_height, | |||
| 2934 | NULL((void*)0), NULL((void*)0), NULL((void*)0)); | |||
| 2935 | ||||
| 2936 | if (b->object && !(b->flags & REPLACE_DIM)) { | |||
| 2937 | layout_get_object_dimensions(b, &b->width, &b->height, | |||
| 2938 | min_width, max_width, | |||
| 2939 | min_height, max_height); | |||
| 2940 | } else if (b->flags & IFRAME) { | |||
| 2941 | /* TODO: should we look at the content dimensions? */ | |||
| 2942 | if (b->width == AUTO(-2147483647 -1)) | |||
| 2943 | b->width = 400; | |||
| 2944 | if (b->height == AUTO(-2147483647 -1)) | |||
| 2945 | b->height = 300; | |||
| 2946 | ||||
| 2947 | /* We reformat the iframe browser window to new | |||
| 2948 | * dimensions in pass 2 */ | |||
| 2949 | } else { | |||
| 2950 | /* form control with no object */ | |||
| 2951 | if (b->width == AUTO(-2147483647 -1)) | |||
| 2952 | b->width = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10) | |||
| 2953 | b->style,((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10) | |||
| 2954 | &content->unit_len_ctx, INTTOFIX(1),((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10) | |||
| 2955 | CSS_UNIT_EM))((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10); | |||
| 2956 | if (b->height == AUTO(-2147483647 -1)) | |||
| 2957 | b->height = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10) | |||
| 2958 | b->style,((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10) | |||
| 2959 | &content->unit_len_ctx, INTTOFIX(1),((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10) | |||
| 2960 | CSS_UNIT_EM))((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10); | |||
| 2961 | } | |||
| 2962 | ||||
| 2963 | /* Reformat object to new box size */ | |||
| 2964 | if (b->object && content_can_reformat(b->object) && | |||
| 2965 | b->width != | |||
| 2966 | content_get_available_width(b->object)) { | |||
| 2967 | css_fixed value = 0; | |||
| 2968 | css_unit unit = CSS_UNIT_PX; | |||
| 2969 | enum css_height_e htype = css_computed_height(b->style, | |||
| 2970 | &value, &unit); | |||
| 2971 | ||||
| 2972 | content_reformat(b->object, false0, b->width, b->height); | |||
| 2973 | ||||
| 2974 | if (htype == CSS_HEIGHT_AUTO) | |||
| 2975 | b->height = content_get_height(b->object); | |||
| 2976 | } | |||
| 2977 | ||||
| 2978 | if (height < b->height) | |||
| 2979 | height = b->height; | |||
| 2980 | ||||
| 2981 | x += b->width; | |||
| 2982 | } | |||
| 2983 | ||||
| 2984 | /* find new sides using this height */ | |||
| 2985 | x0 = cx; | |||
| 2986 | x1 = cx + *width; | |||
| 2987 | find_sides(cont->float_children, cy, cy + height, &x0, &x1, | |||
| 2988 | &left, &right); | |||
| 2989 | x0 -= cx; | |||
| 2990 | x1 -= cx; | |||
| 2991 | ||||
| 2992 | if (indent) | |||
| 2993 | x0 += layout_text_indent(&content->unit_len_ctx, | |||
| 2994 | first->parent->parent->style, *width); | |||
| 2995 | ||||
| 2996 | if (x1 < x0) | |||
| 2997 | x1 = x0; | |||
| 2998 | ||||
| 2999 | space_after = space_before = 0; | |||
| 3000 | ||||
| 3001 | /* pass 2: place boxes in line: loop body executed at least once */ | |||
| 3002 | ||||
| 3003 | NSLOG(layout, DEBUG, "x0 %i, x1 %i, x1 - x0 %i", x0, x1, x1 - x0)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3003, }; nslog__log(&_nslog_ctx , "x0 %i, x1 %i, x1 - x0 %i", x0, x1, x1 - x0); } } while(0); | |||
| 3004 | ||||
| 3005 | for (x = x_previous = 0, b = first; x <= x1 - x0 && b; b = b->next) { | |||
| 3006 | ||||
| 3007 | NSLOG(layout, DEBUG, "pass 2: b %p, x %i", b, x)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3007, }; nslog__log(&_nslog_ctx , "pass 2: b %p, x %i", b, x); } } while(0); | |||
| 3008 | ||||
| 3009 | if (b->type == BOX_INLINE_BLOCK && | |||
| 3010 | (css_computed_position(b->style) == | |||
| 3011 | CSS_POSITION_ABSOLUTE || | |||
| 3012 | css_computed_position(b->style) == | |||
| 3013 | CSS_POSITION_FIXED)) { | |||
| 3014 | b->x = x + space_after; | |||
| 3015 | ||||
| 3016 | } else if (lh__box_is_inline_flow(b)) { | |||
| 3017 | assert(b->width != UNKNOWN_WIDTH)((b->width != 2147483647) ? (void) (0) : __assert_fail ("b->width != UNKNOWN_WIDTH" , "content/handlers/html/layout.c", 3017, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3018 | ||||
| 3019 | x_previous = x; | |||
| 3020 | x += space_after; | |||
| 3021 | b->x = x; | |||
| 3022 | ||||
| 3023 | if ((b->type == BOX_INLINE && !b->inline_end) || | |||
| 3024 | b->type == BOX_INLINE_BLOCK || | |||
| 3025 | b->type == BOX_INLINE_FLEX) { | |||
| 3026 | b->x += b->margin[LEFT] + b->border[LEFT].width; | |||
| 3027 | x = b->x + b->padding[LEFT] + b->width + | |||
| 3028 | b->padding[RIGHT] + | |||
| 3029 | b->border[RIGHT].width + | |||
| 3030 | b->margin[RIGHT]; | |||
| 3031 | } else if (b->type == BOX_INLINE) { | |||
| 3032 | b->x += b->margin[LEFT] + b->border[LEFT].width; | |||
| 3033 | x = b->x + b->padding[LEFT] + b->width; | |||
| 3034 | } else if (b->type == BOX_INLINE_END) { | |||
| 3035 | b->height = b->inline_end->height; | |||
| 3036 | x += b->padding[RIGHT] + | |||
| 3037 | b->border[RIGHT].width + | |||
| 3038 | b->margin[RIGHT]; | |||
| 3039 | } else { | |||
| 3040 | x += b->width; | |||
| 3041 | } | |||
| 3042 | ||||
| 3043 | space_before = space_after; | |||
| 3044 | if (b->object || b->flags & REPLACE_DIM || | |||
| 3045 | b->flags & IFRAME) | |||
| 3046 | space_after = 0; | |||
| 3047 | else if (b->text || b->type == BOX_INLINE_END) { | |||
| 3048 | if (b->space == UNKNOWN_WIDTH2147483647) { | |||
| 3049 | font_plot_style_from_css( | |||
| 3050 | &content->unit_len_ctx, | |||
| 3051 | b->style, &fstyle); | |||
| 3052 | /** \todo handle errors */ | |||
| 3053 | font_func->width(&fstyle, " ", 1, | |||
| 3054 | &b->space); | |||
| 3055 | } | |||
| 3056 | space_after = b->space; | |||
| 3057 | } else { | |||
| 3058 | space_after = 0; | |||
| 3059 | } | |||
| 3060 | split_box = b; | |||
| 3061 | move_y = true1; | |||
| 3062 | inline_count++; | |||
| 3063 | } else if (b->type == BOX_BR) { | |||
| 3064 | b->x = x; | |||
| 3065 | b->width = 0; | |||
| 3066 | br_box = b; | |||
| 3067 | b = b->next; | |||
| 3068 | split_box = 0; | |||
| 3069 | move_y = true1; | |||
| 3070 | break; | |||
| 3071 | ||||
| 3072 | } else { | |||
| 3073 | /* float */ | |||
| 3074 | NSLOG(layout, DEBUG, "float %p", b)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3074, }; nslog__log(&_nslog_ctx , "float %p", b); } } while(0); | |||
| 3075 | ||||
| 3076 | d = b->children; | |||
| 3077 | d->float_children = 0; | |||
| 3078 | d->cached_place_below_level = 0; | |||
| 3079 | b->float_container = d->float_container = cont; | |||
| 3080 | ||||
| 3081 | if (!layout_float(d, *width, content)) | |||
| 3082 | return false0; | |||
| 3083 | ||||
| 3084 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3088, }; nslog__log(&_nslog_ctx , "%p : %d %d", d, d->margin[TOP], d->border[TOP].width ); } } while(0) | |||
| 3085 | "%p : %d %d",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3088, }; nslog__log(&_nslog_ctx , "%p : %d %d", d, d->margin[TOP], d->border[TOP].width ); } } while(0) | |||
| 3086 | d,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3088, }; nslog__log(&_nslog_ctx , "%p : %d %d", d, d->margin[TOP], d->border[TOP].width ); } } while(0) | |||
| 3087 | d->margin[TOP],do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3088, }; nslog__log(&_nslog_ctx , "%p : %d %d", d, d->margin[TOP], d->border[TOP].width ); } } while(0) | |||
| 3088 | d->border[TOP].width)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3088, }; nslog__log(&_nslog_ctx , "%p : %d %d", d, d->margin[TOP], d->border[TOP].width ); } } while(0); | |||
| 3089 | ||||
| 3090 | d->x = d->margin[LEFT] + d->border[LEFT].width; | |||
| 3091 | d->y = d->margin[TOP] + d->border[TOP].width; | |||
| 3092 | b->width = d->margin[LEFT] + d->border[LEFT].width + | |||
| 3093 | d->padding[LEFT] + d->width + | |||
| 3094 | d->padding[RIGHT] + | |||
| 3095 | d->border[RIGHT].width + | |||
| 3096 | d->margin[RIGHT]; | |||
| 3097 | b->height = d->margin[TOP] + d->border[TOP].width + | |||
| 3098 | d->padding[TOP] + d->height + | |||
| 3099 | d->padding[BOTTOM] + | |||
| 3100 | d->border[BOTTOM].width + | |||
| 3101 | d->margin[BOTTOM]; | |||
| 3102 | ||||
| 3103 | if (b->width > (x1 - x0) - x) | |||
| 3104 | place_below = true1; | |||
| 3105 | if (d->style && (css_computed_clear(d->style) == | |||
| 3106 | CSS_CLEAR_NONE || | |||
| 3107 | (css_computed_clear(d->style) == | |||
| 3108 | CSS_CLEAR_LEFT && left == 0) || | |||
| 3109 | (css_computed_clear(d->style) == | |||
| 3110 | CSS_CLEAR_RIGHT && | |||
| 3111 | right == 0) || | |||
| 3112 | (css_computed_clear(d->style) == | |||
| 3113 | CSS_CLEAR_BOTH && | |||
| 3114 | left == 0 && right == 0)) && | |||
| 3115 | (!place_below || | |||
| 3116 | (left == 0 && right == 0 && x == 0)) && | |||
| 3117 | cy >= cont->clear_level && | |||
| 3118 | cy >= cont->cached_place_below_level) { | |||
| 3119 | /* + not cleared or, | |||
| 3120 | * cleared and there are no floats to clear | |||
| 3121 | * + fits without needing to be placed below or, | |||
| 3122 | * this line is empty with no floats | |||
| 3123 | * + current y, cy, is below the clear level | |||
| 3124 | * | |||
| 3125 | * Float affects current line */ | |||
| 3126 | if (b->type == BOX_FLOAT_LEFT) { | |||
| 3127 | b->x = cx + x0; | |||
| 3128 | if (b->width > 0) | |||
| 3129 | x0 += b->width; | |||
| 3130 | left = b; | |||
| 3131 | } else { | |||
| 3132 | b->x = cx + x1 - b->width; | |||
| 3133 | if (b->width > 0) | |||
| 3134 | x1 -= b->width; | |||
| 3135 | right = b; | |||
| 3136 | } | |||
| 3137 | b->y = cy; | |||
| 3138 | } else { | |||
| 3139 | /* cleared or doesn't fit on line */ | |||
| 3140 | /* place below into next available space */ | |||
| 3141 | int fcy = (cy > cont->clear_level) ? cy : | |||
| 3142 | cont->clear_level; | |||
| 3143 | fcy = (fcy > cont->cached_place_below_level) ? | |||
| 3144 | fcy : | |||
| 3145 | cont->cached_place_below_level; | |||
| 3146 | fy = (fy > fcy) ? fy : fcy; | |||
| 3147 | fy = (fy == cy) ? fy + height : fy; | |||
| 3148 | ||||
| 3149 | place_float_below(b, *width, cx, fy, cont); | |||
| 3150 | fy = b->y; | |||
| 3151 | if (d->style && ( | |||
| 3152 | (css_computed_clear(d->style) == | |||
| 3153 | CSS_CLEAR_LEFT && left != 0) || | |||
| 3154 | (css_computed_clear(d->style) == | |||
| 3155 | CSS_CLEAR_RIGHT && | |||
| 3156 | right != 0) || | |||
| 3157 | (css_computed_clear(d->style) == | |||
| 3158 | CSS_CLEAR_BOTH && | |||
| 3159 | (left != 0 || right != 0)))) { | |||
| 3160 | /* to be cleared below existing | |||
| 3161 | * floats */ | |||
| 3162 | if (b->type == BOX_FLOAT_LEFT) | |||
| 3163 | b->x = cx; | |||
| 3164 | else | |||
| 3165 | b->x = cx + *width - b->width; | |||
| 3166 | ||||
| 3167 | fcy = layout_clear(cont->float_children, | |||
| 3168 | css_computed_clear(d->style)); | |||
| 3169 | if (fcy > cont->clear_level) | |||
| 3170 | cont->clear_level = fcy; | |||
| 3171 | if (b->y < fcy) | |||
| 3172 | b->y = fcy; | |||
| 3173 | } | |||
| 3174 | if (b->type == BOX_FLOAT_LEFT) | |||
| 3175 | left = b; | |||
| 3176 | else | |||
| 3177 | right = b; | |||
| 3178 | } | |||
| 3179 | add_float_to_container(cont, b); | |||
| 3180 | ||||
| 3181 | split_box = 0; | |||
| 3182 | } | |||
| 3183 | } | |||
| 3184 | ||||
| 3185 | if (x1 - x0 < x && split_box) { | |||
| 3186 | /* the last box went over the end */ | |||
| 3187 | size_t split = 0; | |||
| 3188 | int w; | |||
| 3189 | bool_Bool no_wrap = css_computed_white_space( | |||
| 3190 | split_box->style) == CSS_WHITE_SPACE_NOWRAP || | |||
| 3191 | css_computed_white_space( | |||
| 3192 | split_box->style) == CSS_WHITE_SPACE_PRE; | |||
| 3193 | ||||
| 3194 | x = x_previous; | |||
| 3195 | ||||
| 3196 | if (!no_wrap && | |||
| 3197 | (split_box->type == BOX_INLINE || | |||
| 3198 | split_box->type == BOX_TEXT) && | |||
| 3199 | !split_box->object && | |||
| 3200 | !(split_box->flags & REPLACE_DIM) && | |||
| 3201 | !(split_box->flags & IFRAME) && | |||
| 3202 | !split_box->gadget && split_box->text) { | |||
| 3203 | ||||
| 3204 | font_plot_style_from_css(&content->unit_len_ctx, | |||
| 3205 | split_box->style, &fstyle); | |||
| 3206 | /** \todo handle errors */ | |||
| 3207 | font_func->split(&fstyle, | |||
| 3208 | split_box->text, | |||
| 3209 | split_box->length, | |||
| 3210 | x1 - x0 - x - space_before, | |||
| 3211 | &split, | |||
| 3212 | &w); | |||
| 3213 | } | |||
| 3214 | ||||
| 3215 | /* split == 0 implies that text can't be split */ | |||
| 3216 | ||||
| 3217 | if (split == 0) | |||
| 3218 | w = split_box->width; | |||
| 3219 | ||||
| 3220 | ||||
| 3221 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3231, }; nslog__log(&_nslog_ctx , "splitting: split_box %p \"%.*s\", spilt %""zu" ", w %i, left %p, right %p, inline_count %u" , split_box, (int)split_box->length, split_box->text, split , w, left, right, inline_count); } } while(0) | |||
| 3222 | "splitting: split_box %p \"%.*s\", spilt %"PRIsizetdo { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3231, }; nslog__log(&_nslog_ctx , "splitting: split_box %p \"%.*s\", spilt %""zu" ", w %i, left %p, right %p, inline_count %u" , split_box, (int)split_box->length, split_box->text, split , w, left, right, inline_count); } } while(0) | |||
| 3223 | ", w %i, left %p, right %p, inline_count %u",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3231, }; nslog__log(&_nslog_ctx , "splitting: split_box %p \"%.*s\", spilt %""zu" ", w %i, left %p, right %p, inline_count %u" , split_box, (int)split_box->length, split_box->text, split , w, left, right, inline_count); } } while(0) | |||
| 3224 | split_box,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3231, }; nslog__log(&_nslog_ctx , "splitting: split_box %p \"%.*s\", spilt %""zu" ", w %i, left %p, right %p, inline_count %u" , split_box, (int)split_box->length, split_box->text, split , w, left, right, inline_count); } } while(0) | |||
| 3225 | (int)split_box->length,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3231, }; nslog__log(&_nslog_ctx , "splitting: split_box %p \"%.*s\", spilt %""zu" ", w %i, left %p, right %p, inline_count %u" , split_box, (int)split_box->length, split_box->text, split , w, left, right, inline_count); } } while(0) | |||
| 3226 | split_box->text,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3231, }; nslog__log(&_nslog_ctx , "splitting: split_box %p \"%.*s\", spilt %""zu" ", w %i, left %p, right %p, inline_count %u" , split_box, (int)split_box->length, split_box->text, split , w, left, right, inline_count); } } while(0) | |||
| 3227 | split,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3231, }; nslog__log(&_nslog_ctx , "splitting: split_box %p \"%.*s\", spilt %""zu" ", w %i, left %p, right %p, inline_count %u" , split_box, (int)split_box->length, split_box->text, split , w, left, right, inline_count); } } while(0) | |||
| 3228 | w,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3231, }; nslog__log(&_nslog_ctx , "splitting: split_box %p \"%.*s\", spilt %""zu" ", w %i, left %p, right %p, inline_count %u" , split_box, (int)split_box->length, split_box->text, split , w, left, right, inline_count); } } while(0) | |||
| 3229 | left,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3231, }; nslog__log(&_nslog_ctx , "splitting: split_box %p \"%.*s\", spilt %""zu" ", w %i, left %p, right %p, inline_count %u" , split_box, (int)split_box->length, split_box->text, split , w, left, right, inline_count); } } while(0) | |||
| 3230 | right,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3231, }; nslog__log(&_nslog_ctx , "splitting: split_box %p \"%.*s\", spilt %""zu" ", w %i, left %p, right %p, inline_count %u" , split_box, (int)split_box->length, split_box->text, split , w, left, right, inline_count); } } while(0) | |||
| 3231 | inline_count)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3231, }; nslog__log(&_nslog_ctx , "splitting: split_box %p \"%.*s\", spilt %""zu" ", w %i, left %p, right %p, inline_count %u" , split_box, (int)split_box->length, split_box->text, split , w, left, right, inline_count); } } while(0); | |||
| 3232 | ||||
| 3233 | if ((split == 0 || x1 - x0 <= x + space_before + w) && | |||
| 3234 | !left && !right && inline_count == 1) { | |||
| 3235 | /* first word of box doesn't fit, but no floats and | |||
| 3236 | * first box on line so force in */ | |||
| 3237 | if (split == 0 || split == split_box->length) { | |||
| 3238 | /* only one word in this box, or not text | |||
| 3239 | * or white-space:nowrap */ | |||
| 3240 | b = split_box->next; | |||
| 3241 | } else { | |||
| 3242 | /* cut off first word for this line */ | |||
| 3243 | if (!layout_text_box_split(content, &fstyle, | |||
| 3244 | split_box, split, w)) | |||
| 3245 | return false0; | |||
| 3246 | b = split_box->next; | |||
| 3247 | } | |||
| 3248 | x += space_before + w; | |||
| 3249 | ||||
| 3250 | NSLOG(layout, DEBUG, "forcing")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3250, }; nslog__log(&_nslog_ctx , "forcing"); } } while(0); | |||
| 3251 | ||||
| 3252 | } else if ((split == 0 || x1 - x0 <= x + space_before + w) && | |||
| 3253 | inline_count == 1) { | |||
| 3254 | /* first word of first box doesn't fit, but a float is | |||
| 3255 | * taking some of the width so move below it */ | |||
| 3256 | assert(left || right)((left || right) ? (void) (0) : __assert_fail ("left || right" , "content/handlers/html/layout.c", 3256, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3257 | used_height = 0; | |||
| 3258 | if (left) { | |||
| 3259 | ||||
| 3260 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3264, }; nslog__log(&_nslog_ctx , "cy %i, left->y %i, left->height %i", cy, left->y, left->height); } } while(0) | |||
| 3261 | "cy %i, left->y %i, left->height %i",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3264, }; nslog__log(&_nslog_ctx , "cy %i, left->y %i, left->height %i", cy, left->y, left->height); } } while(0) | |||
| 3262 | cy,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3264, }; nslog__log(&_nslog_ctx , "cy %i, left->y %i, left->height %i", cy, left->y, left->height); } } while(0) | |||
| 3263 | left->y,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3264, }; nslog__log(&_nslog_ctx , "cy %i, left->y %i, left->height %i", cy, left->y, left->height); } } while(0) | |||
| 3264 | left->height)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3264, }; nslog__log(&_nslog_ctx , "cy %i, left->y %i, left->height %i", cy, left->y, left->height); } } while(0); | |||
| 3265 | ||||
| 3266 | used_height = left->y + left->height - cy + 1; | |||
| 3267 | ||||
| 3268 | NSLOG(layout, DEBUG, "used_height %i",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3269, }; nslog__log(&_nslog_ctx , "used_height %i", used_height); } } while(0) | |||
| 3269 | used_height)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3269, }; nslog__log(&_nslog_ctx , "used_height %i", used_height); } } while(0); | |||
| 3270 | ||||
| 3271 | } | |||
| 3272 | if (right && used_height < | |||
| 3273 | right->y + right->height - cy + 1) | |||
| 3274 | used_height = right->y + right->height - cy + 1; | |||
| 3275 | ||||
| 3276 | if (used_height < 0) | |||
| 3277 | used_height = 0; | |||
| 3278 | ||||
| 3279 | b = split_box; | |||
| 3280 | ||||
| 3281 | NSLOG(layout, DEBUG, "moving below float")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3281, }; nslog__log(&_nslog_ctx , "moving below float"); } } while(0); | |||
| 3282 | ||||
| 3283 | } else if (split == 0 || x1 - x0 <= x + space_before + w) { | |||
| 3284 | /* first word of box doesn't fit so leave box for next | |||
| 3285 | * line */ | |||
| 3286 | b = split_box; | |||
| 3287 | ||||
| 3288 | NSLOG(layout, DEBUG, "leaving for next line")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3288, }; nslog__log(&_nslog_ctx , "leaving for next line"); } } while(0); | |||
| 3289 | ||||
| 3290 | } else { | |||
| 3291 | /* fit as many words as possible */ | |||
| 3292 | assert(split != 0)((split != 0) ? (void) (0) : __assert_fail ("split != 0", "content/handlers/html/layout.c" , 3292, __extension__ __PRETTY_FUNCTION__)); | |||
| 3293 | ||||
| 3294 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3297, }; nslog__log(&_nslog_ctx , "'%.*s' %i %""zu"" %i", (int)split_box->length, split_box ->text, x1 - x0, split, w); } } while(0) | |||
| 3295 | "'%.*s' %i %"PRIsizet" %i",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3297, }; nslog__log(&_nslog_ctx , "'%.*s' %i %""zu"" %i", (int)split_box->length, split_box ->text, x1 - x0, split, w); } } while(0) | |||
| 3296 | (int)split_box->length, split_box->text,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3297, }; nslog__log(&_nslog_ctx , "'%.*s' %i %""zu"" %i", (int)split_box->length, split_box ->text, x1 - x0, split, w); } } while(0) | |||
| 3297 | x1 - x0, split, w)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3297, }; nslog__log(&_nslog_ctx , "'%.*s' %i %""zu"" %i", (int)split_box->length, split_box ->text, x1 - x0, split, w); } } while(0); | |||
| 3298 | ||||
| 3299 | if (split != split_box->length) { | |||
| 3300 | if (!layout_text_box_split(content, &fstyle, | |||
| 3301 | split_box, split, w)) | |||
| 3302 | return false0; | |||
| 3303 | b = split_box->next; | |||
| 3304 | } | |||
| 3305 | x += space_before + w; | |||
| 3306 | ||||
| 3307 | NSLOG(layout, DEBUG, "fitting words")do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3307, }; nslog__log(&_nslog_ctx , "fitting words"); } } while(0); | |||
| 3308 | ||||
| 3309 | } | |||
| 3310 | move_y = true1; | |||
| 3311 | } | |||
| 3312 | ||||
| 3313 | /* set positions */ | |||
| 3314 | switch (css_computed_text_align(first->parent->parent->style)) { | |||
| 3315 | case CSS_TEXT_ALIGN_RIGHT: | |||
| 3316 | case CSS_TEXT_ALIGN_LIBCSS_RIGHT: | |||
| 3317 | x0 = x1 - x; | |||
| 3318 | break; | |||
| 3319 | case CSS_TEXT_ALIGN_CENTER: | |||
| 3320 | case CSS_TEXT_ALIGN_LIBCSS_CENTER: | |||
| 3321 | x0 = (x0 + (x1 - x)) / 2; | |||
| 3322 | break; | |||
| 3323 | case CSS_TEXT_ALIGN_LEFT: | |||
| 3324 | case CSS_TEXT_ALIGN_LIBCSS_LEFT: | |||
| 3325 | case CSS_TEXT_ALIGN_JUSTIFY: | |||
| 3326 | /* leave on left */ | |||
| 3327 | break; | |||
| 3328 | case CSS_TEXT_ALIGN_DEFAULT: | |||
| 3329 | /* None; consider text direction */ | |||
| 3330 | switch (css_computed_direction(first->parent->parent->style)) { | |||
| 3331 | case CSS_DIRECTION_LTR: | |||
| 3332 | /* leave on left */ | |||
| 3333 | break; | |||
| 3334 | case CSS_DIRECTION_RTL: | |||
| 3335 | x0 = x1 - x; | |||
| 3336 | break; | |||
| 3337 | } | |||
| 3338 | break; | |||
| 3339 | } | |||
| 3340 | ||||
| 3341 | for (d = first; d != b; d = d->next) { | |||
| 3342 | d->flags &= ~NEW_LINE; | |||
| 3343 | ||||
| 3344 | if (d->type == BOX_INLINE_BLOCK && | |||
| 3345 | (css_computed_position(d->style) == | |||
| 3346 | CSS_POSITION_ABSOLUTE || | |||
| 3347 | css_computed_position(d->style) == | |||
| 3348 | CSS_POSITION_FIXED)) { | |||
| 3349 | /* positioned inline-blocks: | |||
| 3350 | * set static position (x,y) only, rest of positioning | |||
| 3351 | * is handled later */ | |||
| 3352 | d->x += x0; | |||
| 3353 | d->y = *y; | |||
| 3354 | continue; | |||
| 3355 | } else if ((d->type == BOX_INLINE && | |||
| 3356 | lh__box_is_replace(d) == false0) || | |||
| 3357 | d->type == BOX_BR || | |||
| 3358 | d->type == BOX_TEXT || | |||
| 3359 | d->type == BOX_INLINE_END) { | |||
| 3360 | /* regular (non-replaced) inlines */ | |||
| 3361 | d->x += x0; | |||
| 3362 | d->y = *y - d->padding[TOP]; | |||
| 3363 | ||||
| 3364 | if (d->type == BOX_TEXT && d->height > used_height) { | |||
| 3365 | /* text */ | |||
| 3366 | used_height = d->height; | |||
| 3367 | } | |||
| 3368 | } else if ((d->type == BOX_INLINE) || | |||
| 3369 | d->type == BOX_INLINE_BLOCK) { | |||
| 3370 | /* replaced inlines and inline-blocks */ | |||
| 3371 | d->x += x0; | |||
| 3372 | d->y = *y + d->border[TOP].width + d->margin[TOP]; | |||
| 3373 | h = d->margin[TOP] + d->border[TOP].width + | |||
| 3374 | d->padding[TOP] + d->height + | |||
| 3375 | d->padding[BOTTOM] + | |||
| 3376 | d->border[BOTTOM].width + | |||
| 3377 | d->margin[BOTTOM]; | |||
| 3378 | if (used_height < h) | |||
| 3379 | used_height = h; | |||
| 3380 | } | |||
| 3381 | } | |||
| 3382 | ||||
| 3383 | first->flags |= NEW_LINE; | |||
| 3384 | ||||
| 3385 | assert(b != first || (move_y && 0 < used_height && (left || right)))((b != first || (move_y && 0 < used_height && (left || right))) ? (void) (0) : __assert_fail ("b != first || (move_y && 0 < used_height && (left || right))" , "content/handlers/html/layout.c", 3385, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3386 | ||||
| 3387 | /* handle vertical-align by adjusting box y values */ | |||
| 3388 | /** \todo proper vertical alignment handling */ | |||
| 3389 | for (d = first; d != b; d = d->next) { | |||
| 3390 | if ((d->type == BOX_INLINE && d->inline_end) || | |||
| 3391 | d->type == BOX_BR || | |||
| 3392 | d->type == BOX_TEXT || | |||
| 3393 | d->type == BOX_INLINE_END) { | |||
| 3394 | css_fixed value = 0; | |||
| 3395 | css_unit unit = CSS_UNIT_PX; | |||
| 3396 | switch (css_computed_vertical_align(d->style, &value, | |||
| 3397 | &unit)) { | |||
| 3398 | case CSS_VERTICAL_ALIGN_SUPER: | |||
| 3399 | case CSS_VERTICAL_ALIGN_TOP: | |||
| 3400 | case CSS_VERTICAL_ALIGN_TEXT_TOP: | |||
| 3401 | /* already at top */ | |||
| 3402 | break; | |||
| 3403 | case CSS_VERTICAL_ALIGN_SUB: | |||
| 3404 | case CSS_VERTICAL_ALIGN_BOTTOM: | |||
| 3405 | case CSS_VERTICAL_ALIGN_TEXT_BOTTOM: | |||
| 3406 | d->y += used_height - d->height; | |||
| 3407 | break; | |||
| 3408 | default: | |||
| 3409 | case CSS_VERTICAL_ALIGN_BASELINE: | |||
| 3410 | d->y += 0.75 * (used_height - d->height); | |||
| 3411 | break; | |||
| 3412 | } | |||
| 3413 | } | |||
| 3414 | } | |||
| 3415 | ||||
| 3416 | /* handle clearance for br */ | |||
| 3417 | if (br_box && css_computed_clear(br_box->style) != CSS_CLEAR_NONE) { | |||
| 3418 | int clear_y = layout_clear(cont->float_children, | |||
| 3419 | css_computed_clear(br_box->style)); | |||
| 3420 | if (used_height < clear_y - cy) | |||
| 3421 | used_height = clear_y - cy; | |||
| 3422 | } | |||
| 3423 | ||||
| 3424 | if (move_y) | |||
| 3425 | *y += used_height; | |||
| 3426 | *next_box = b; | |||
| 3427 | *width = x; /* return actual width */ | |||
| 3428 | return true1; | |||
| 3429 | } | |||
| 3430 | ||||
| 3431 | ||||
| 3432 | /** | |||
| 3433 | * Layout lines of text or inline boxes with floats. | |||
| 3434 | * | |||
| 3435 | * \param box inline container box | |||
| 3436 | * \param width horizontal space available | |||
| 3437 | * \param cont ancestor box which defines horizontal space, for floats | |||
| 3438 | * \param cx box position relative to cont | |||
| 3439 | * \param cy box position relative to cont | |||
| 3440 | * \param content memory pool for any new boxes | |||
| 3441 | * \return true on success, false on memory exhaustion | |||
| 3442 | */ | |||
| 3443 | static bool_Bool layout_inline_container(struct box *inline_container, int width, | |||
| 3444 | struct box *cont, int cx, int cy, html_content *content) | |||
| 3445 | { | |||
| 3446 | bool_Bool first_line = true1; | |||
| 3447 | bool_Bool has_text_children; | |||
| 3448 | struct box *c, *next; | |||
| 3449 | int y = 0; | |||
| 3450 | int curwidth,maxwidth = width; | |||
| 3451 | ||||
| 3452 | assert(inline_container->type == BOX_INLINE_CONTAINER)((inline_container->type == BOX_INLINE_CONTAINER) ? (void) (0) : __assert_fail ("inline_container->type == BOX_INLINE_CONTAINER" , "content/handlers/html/layout.c", 3452, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3453 | ||||
| 3454 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3460, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0) | |||
| 3455 | "inline_container %p, width %i, cont %p, cx %i, cy %i",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3460, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0) | |||
| 3456 | inline_container,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3460, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0) | |||
| 3457 | width,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3460, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0) | |||
| 3458 | cont,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3460, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0) | |||
| 3459 | cx,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3460, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0) | |||
| 3460 | cy)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3460, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0); | |||
| 3461 | ||||
| 3462 | ||||
| 3463 | has_text_children = false0; | |||
| 3464 | for (c = inline_container->children; c; c = c->next) { | |||
| 3465 | bool_Bool is_pre = false0; | |||
| 3466 | ||||
| 3467 | if (c->style) { | |||
| 3468 | enum css_white_space_e whitespace; | |||
| 3469 | ||||
| 3470 | whitespace = css_computed_white_space(c->style); | |||
| 3471 | ||||
| 3472 | is_pre = (whitespace == CSS_WHITE_SPACE_PRE || | |||
| 3473 | whitespace == CSS_WHITE_SPACE_PRE_LINE || | |||
| 3474 | whitespace == CSS_WHITE_SPACE_PRE_WRAP); | |||
| 3475 | } | |||
| 3476 | ||||
| 3477 | if ((lh__box_is_object(c) == false0 && | |||
| 3478 | c->text && (c->length || is_pre)) || | |||
| 3479 | c->type == BOX_BR) | |||
| 3480 | has_text_children = true1; | |||
| 3481 | } | |||
| 3482 | ||||
| 3483 | /** \todo fix wrapping so that a box with horizontal scrollbar will | |||
| 3484 | * shrink back to 'width' if no word is wider than 'width' (Or just set | |||
| 3485 | * curwidth = width and have the multiword lines wrap to the min width) | |||
| 3486 | */ | |||
| 3487 | for (c = inline_container->children; c; ) { | |||
| 3488 | ||||
| 3489 | NSLOG(layout, DEBUG, "c %p", c)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3489, }; nslog__log(&_nslog_ctx , "c %p", c); } } while(0); | |||
| 3490 | ||||
| 3491 | curwidth = inline_container->width; | |||
| 3492 | if (!layout_line(c, &curwidth, &y, cx, cy + y, cont, first_line, | |||
| 3493 | has_text_children, content, &next)) | |||
| 3494 | return false0; | |||
| 3495 | maxwidth = max(maxwidth,curwidth)(((maxwidth)>(curwidth))?(maxwidth):(curwidth)); | |||
| 3496 | c = next; | |||
| 3497 | first_line = false0; | |||
| 3498 | } | |||
| 3499 | ||||
| 3500 | inline_container->width = maxwidth; | |||
| 3501 | inline_container->height = y; | |||
| 3502 | ||||
| 3503 | return true1; | |||
| 3504 | } | |||
| 3505 | ||||
| 3506 | ||||
| 3507 | /* Documented in layout_intertnal.h */ | |||
| 3508 | bool_Bool layout_block_context( | |||
| 3509 | struct box *block, | |||
| 3510 | int viewport_height, | |||
| 3511 | html_content *content) | |||
| 3512 | { | |||
| 3513 | struct box *box; | |||
| 3514 | int cx, cy; /**< current coordinates */ | |||
| 3515 | int max_pos_margin = 0; | |||
| 3516 | int max_neg_margin = 0; | |||
| 3517 | int y = 0; | |||
| 3518 | int lm, rm; | |||
| 3519 | struct box *margin_collapse = NULL((void*)0); | |||
| 3520 | bool_Bool in_margin = false0; | |||
| 3521 | css_fixed gadget_size; | |||
| 3522 | css_unit gadget_unit; /* Checkbox / radio buttons */ | |||
| 3523 | ||||
| 3524 | assert(block->type == BOX_BLOCK ||((block->type == BOX_BLOCK || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 3528, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3525 | block->type == BOX_INLINE_BLOCK ||((block->type == BOX_BLOCK || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 3528, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3526 | block->type == BOX_TABLE_CELL ||((block->type == BOX_BLOCK || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 3528, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3527 | block->type == BOX_FLEX ||((block->type == BOX_BLOCK || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 3528, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3528 | block->type == BOX_INLINE_FLEX)((block->type == BOX_BLOCK || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("block->type == BOX_BLOCK || block->type == BOX_INLINE_BLOCK || block->type == BOX_TABLE_CELL || block->type == BOX_FLEX || block->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 3528, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3529 | assert(block->width != UNKNOWN_WIDTH)((block->width != 2147483647) ? (void) (0) : __assert_fail ("block->width != UNKNOWN_WIDTH", "content/handlers/html/layout.c" , 3529, __extension__ __PRETTY_FUNCTION__)); | |||
| 3530 | assert(block->width != AUTO)((block->width != (-2147483647 -1)) ? (void) (0) : __assert_fail ("block->width != AUTO", "content/handlers/html/layout.c" , 3530, __extension__ __PRETTY_FUNCTION__)); | |||
| 3531 | ||||
| 3532 | block->float_children = NULL((void*)0); | |||
| 3533 | block->cached_place_below_level = 0; | |||
| 3534 | block->clear_level = 0; | |||
| 3535 | ||||
| 3536 | /* special case if the block contains an object */ | |||
| 3537 | if (block->object) { | |||
| 3538 | int temp_width = block->width; | |||
| 3539 | if (!layout_block_object(block)) | |||
| 3540 | return false0; | |||
| 3541 | layout_get_object_dimensions(block, &temp_width, | |||
| 3542 | &block->height, INT_MIN(-2147483647 -1), INT_MAX2147483647, | |||
| 3543 | INT_MIN(-2147483647 -1), INT_MAX2147483647); | |||
| 3544 | return true1; | |||
| 3545 | } else if (block->flags & REPLACE_DIM) { | |||
| 3546 | return true1; | |||
| 3547 | } | |||
| 3548 | ||||
| 3549 | /* special case if the block contains an radio button or checkbox */ | |||
| 3550 | if (block->gadget && (block->gadget->type == GADGET_RADIO || | |||
| 3551 | block->gadget->type == GADGET_CHECKBOX)) { | |||
| 3552 | /* form checkbox or radio button | |||
| 3553 | * if width or height is AUTO, set it to 1em */ | |||
| 3554 | gadget_unit = CSS_UNIT_EM; | |||
| 3555 | gadget_size = INTTOFIX(1)(css_int_to_fixed(1)); | |||
| 3556 | if (block->height == AUTO(-2147483647 -1)) | |||
| 3557 | block->height = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( block->style, &content->unit_len_ctx , gadget_size, gadget_unit)) >> 10) | |||
| 3558 | block->style,((css_unit_len2device_px( block->style, &content->unit_len_ctx , gadget_size, gadget_unit)) >> 10) | |||
| 3559 | &content->unit_len_ctx,((css_unit_len2device_px( block->style, &content->unit_len_ctx , gadget_size, gadget_unit)) >> 10) | |||
| 3560 | gadget_size, gadget_unit))((css_unit_len2device_px( block->style, &content->unit_len_ctx , gadget_size, gadget_unit)) >> 10); | |||
| 3561 | } | |||
| 3562 | ||||
| 3563 | box = block->children; | |||
| 3564 | /* set current coordinates to top-left of the block */ | |||
| 3565 | cx = 0; | |||
| 3566 | y = cy = block->padding[TOP]; | |||
| 3567 | if (box) | |||
| 3568 | box->y = block->padding[TOP]; | |||
| 3569 | ||||
| 3570 | /* Step through the descendants of the block in depth-first order, but | |||
| 3571 | * not into the children of boxes which aren't blocks. For example, if | |||
| 3572 | * the tree passed to this function looks like this (box->type shown): | |||
| 3573 | * | |||
| 3574 | * block -> BOX_BLOCK | |||
| 3575 | * BOX_BLOCK * (1) | |||
| 3576 | * BOX_INLINE_CONTAINER * (2) | |||
| 3577 | * BOX_INLINE | |||
| 3578 | * BOX_TEXT | |||
| 3579 | * ... | |||
| 3580 | * BOX_BLOCK * (3) | |||
| 3581 | * BOX_TABLE * (4) | |||
| 3582 | * BOX_TABLE_ROW | |||
| 3583 | * BOX_TABLE_CELL | |||
| 3584 | * ... | |||
| 3585 | * BOX_TABLE_CELL | |||
| 3586 | * ... | |||
| 3587 | * BOX_BLOCK * (5) | |||
| 3588 | * BOX_INLINE_CONTAINER * (6) | |||
| 3589 | * BOX_TEXT | |||
| 3590 | * ... | |||
| 3591 | * then the while loop will visit each box marked with *, setting box | |||
| 3592 | * to each in the order shown. */ | |||
| 3593 | while (box) { | |||
| 3594 | enum css_overflow_e overflow_x = CSS_OVERFLOW_VISIBLE; | |||
| 3595 | enum css_overflow_e overflow_y = CSS_OVERFLOW_VISIBLE; | |||
| 3596 | ||||
| 3597 | assert(box->type == BOX_BLOCK ||((box->type == BOX_BLOCK || box->type == BOX_FLEX || box ->type == BOX_TABLE || box->type == BOX_INLINE_CONTAINER ) ? (void) (0) : __assert_fail ("box->type == BOX_BLOCK || box->type == BOX_FLEX || box->type == BOX_TABLE || box->type == BOX_INLINE_CONTAINER" , "content/handlers/html/layout.c", 3600, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3598 | box->type == BOX_FLEX ||((box->type == BOX_BLOCK || box->type == BOX_FLEX || box ->type == BOX_TABLE || box->type == BOX_INLINE_CONTAINER ) ? (void) (0) : __assert_fail ("box->type == BOX_BLOCK || box->type == BOX_FLEX || box->type == BOX_TABLE || box->type == BOX_INLINE_CONTAINER" , "content/handlers/html/layout.c", 3600, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3599 | box->type == BOX_TABLE ||((box->type == BOX_BLOCK || box->type == BOX_FLEX || box ->type == BOX_TABLE || box->type == BOX_INLINE_CONTAINER ) ? (void) (0) : __assert_fail ("box->type == BOX_BLOCK || box->type == BOX_FLEX || box->type == BOX_TABLE || box->type == BOX_INLINE_CONTAINER" , "content/handlers/html/layout.c", 3600, __extension__ __PRETTY_FUNCTION__ )) | |||
| 3600 | box->type == BOX_INLINE_CONTAINER)((box->type == BOX_BLOCK || box->type == BOX_FLEX || box ->type == BOX_TABLE || box->type == BOX_INLINE_CONTAINER ) ? (void) (0) : __assert_fail ("box->type == BOX_BLOCK || box->type == BOX_FLEX || box->type == BOX_TABLE || box->type == BOX_INLINE_CONTAINER" , "content/handlers/html/layout.c", 3600, __extension__ __PRETTY_FUNCTION__ )); | |||
| 3601 | ||||
| 3602 | /* Tables are laid out before being positioned, because the | |||
| 3603 | * position depends on the width which is calculated in | |||
| 3604 | * table layout. Blocks and inline containers are positioned | |||
| 3605 | * before being laid out, because width is not dependent on | |||
| 3606 | * content, and the position is required during layout for | |||
| 3607 | * correct handling of floats. | |||
| 3608 | */ | |||
| 3609 | ||||
| 3610 | if (box->style && | |||
| 3611 | (css_computed_position(box->style) == | |||
| 3612 | CSS_POSITION_ABSOLUTE || | |||
| 3613 | css_computed_position(box->style) == | |||
| 3614 | CSS_POSITION_FIXED)) { | |||
| 3615 | box->x = box->parent->padding[LEFT]; | |||
| 3616 | /* absolute positioned; this element will establish | |||
| 3617 | * its own block context when it gets laid out later, | |||
| 3618 | * so no need to look at its children now. */ | |||
| 3619 | goto advance_to_next_box; | |||
| 3620 | } | |||
| 3621 | ||||
| 3622 | /* If we don't know which box the current margin collapses | |||
| 3623 | * through to, find out. Update the pos/neg margin values. */ | |||
| 3624 | if (margin_collapse == NULL((void*)0)) { | |||
| 3625 | margin_collapse = layout_next_margin_block( | |||
| 3626 | &content->unit_len_ctx, box, block, | |||
| 3627 | viewport_height, | |||
| 3628 | &max_pos_margin, &max_neg_margin); | |||
| 3629 | /* We have a margin that has not yet been applied. */ | |||
| 3630 | in_margin = true1; | |||
| 3631 | } | |||
| 3632 | ||||
| 3633 | /* Clearance. */ | |||
| 3634 | y = 0; | |||
| 3635 | if (box->style && css_computed_clear(box->style) != | |||
| 3636 | CSS_CLEAR_NONE) | |||
| 3637 | y = layout_clear(block->float_children, | |||
| 3638 | css_computed_clear(box->style)); | |||
| 3639 | ||||
| 3640 | /* Find box's overflow properties */ | |||
| 3641 | if (box->style) { | |||
| 3642 | overflow_x = css_computed_overflow_x(box->style); | |||
| 3643 | overflow_y = css_computed_overflow_y(box->style); | |||
| 3644 | } | |||
| 3645 | ||||
| 3646 | /* Blocks establishing a block formatting context get minimum | |||
| 3647 | * left and right margins to avoid any floats. */ | |||
| 3648 | lm = rm = 0; | |||
| 3649 | ||||
| 3650 | if (box->type == BOX_FLEX || | |||
| 3651 | box->type == BOX_BLOCK || | |||
| 3652 | box->flags & IFRAME) { | |||
| 3653 | if (lh__box_is_object(box) == false0 && | |||
| 3654 | box->style && | |||
| 3655 | (overflow_x != CSS_OVERFLOW_VISIBLE || | |||
| 3656 | overflow_y != CSS_OVERFLOW_VISIBLE)) { | |||
| 3657 | /* box establishes new block formatting context | |||
| 3658 | * so available width may be diminished due to | |||
| 3659 | * floats. */ | |||
| 3660 | int x0, x1, top; | |||
| 3661 | struct box *left, *right; | |||
| 3662 | top = cy + max_pos_margin - max_neg_margin; | |||
| 3663 | top = (top > y) ? top : y; | |||
| 3664 | x0 = cx; | |||
| 3665 | x1 = cx + box->parent->width - | |||
| 3666 | box->parent->padding[LEFT] - | |||
| 3667 | box->parent->padding[RIGHT]; | |||
| 3668 | find_sides(block->float_children, top, top, | |||
| 3669 | &x0, &x1, &left, &right); | |||
| 3670 | /* calculate min required left & right margins | |||
| 3671 | * needed to avoid floats */ | |||
| 3672 | lm = x0 - cx; | |||
| 3673 | rm = cx + box->parent->width - | |||
| 3674 | box->parent->padding[LEFT] - | |||
| 3675 | box->parent->padding[RIGHT] - | |||
| 3676 | x1; | |||
| 3677 | } | |||
| 3678 | layout_block_find_dimensions(&content->unit_len_ctx, | |||
| 3679 | box->parent->width, | |||
| 3680 | viewport_height, lm, rm, box); | |||
| 3681 | if (box->type == BOX_BLOCK && !(box->flags & IFRAME)) { | |||
| 3682 | layout_block_add_scrollbar(box, RIGHT); | |||
| 3683 | layout_block_add_scrollbar(box, BOTTOM); | |||
| 3684 | } | |||
| 3685 | } else if (box->type == BOX_TABLE) { | |||
| 3686 | if (box->style != NULL((void*)0)) { | |||
| 3687 | enum css_width_e wtype; | |||
| 3688 | css_fixed width = 0; | |||
| 3689 | css_unit unit = CSS_UNIT_PX; | |||
| 3690 | ||||
| 3691 | wtype = css_computed_width(box->style, &width, | |||
| 3692 | &unit); | |||
| 3693 | ||||
| 3694 | if (wtype == CSS_WIDTH_AUTO) { | |||
| 3695 | /* max available width may be | |||
| 3696 | * diminished due to floats. */ | |||
| 3697 | int x0, x1, top; | |||
| 3698 | struct box *left, *right; | |||
| 3699 | top = cy + max_pos_margin - | |||
| 3700 | max_neg_margin; | |||
| 3701 | top = (top > y) ? top : y; | |||
| 3702 | x0 = cx; | |||
| 3703 | x1 = cx + box->parent->width - | |||
| 3704 | box->parent->padding[LEFT] - | |||
| 3705 | box->parent->padding[RIGHT]; | |||
| 3706 | find_sides(block->float_children, | |||
| 3707 | top, top, &x0, &x1, | |||
| 3708 | &left, &right); | |||
| 3709 | /* calculate min required left & right | |||
| 3710 | * margins needed to avoid floats */ | |||
| 3711 | lm = x0 - cx; | |||
| 3712 | rm = cx + box->parent->width - | |||
| 3713 | box->parent->padding[LEFT] - | |||
| 3714 | box->parent->padding[RIGHT] - | |||
| 3715 | x1; | |||
| 3716 | } | |||
| 3717 | } | |||
| 3718 | if (!layout_table(box, box->parent->width - lm - rm, | |||
| 3719 | content)) | |||
| 3720 | return false0; | |||
| 3721 | layout_solve_width(box, box->parent->width, box->width, | |||
| 3722 | lm, rm, -1, -1); | |||
| 3723 | } | |||
| 3724 | ||||
| 3725 | /* Position box: horizontal. */ | |||
| 3726 | box->x = box->parent->padding[LEFT] + box->margin[LEFT] + | |||
| 3727 | box->border[LEFT].width; | |||
| 3728 | cx += box->x; | |||
| 3729 | ||||
| 3730 | /* Position box: vertical. */ | |||
| 3731 | if (box->border[TOP].width) { | |||
| 3732 | box->y += box->border[TOP].width; | |||
| 3733 | cy += box->border[TOP].width; | |||
| 3734 | } | |||
| 3735 | ||||
| 3736 | /* Vertical margin */ | |||
| 3737 | if (((box->type == BOX_BLOCK && (box->flags & HAS_HEIGHT)) || | |||
| 3738 | box->type == BOX_FLEX || | |||
| 3739 | box->type == BOX_TABLE || | |||
| 3740 | (box->type == BOX_INLINE_CONTAINER && | |||
| 3741 | !box_is_first_child(box)) || | |||
| 3742 | margin_collapse == box) && | |||
| 3743 | in_margin == true1) { | |||
| 3744 | /* Margin goes above this box. */ | |||
| 3745 | cy += max_pos_margin - max_neg_margin; | |||
| 3746 | box->y += max_pos_margin - max_neg_margin; | |||
| 3747 | ||||
| 3748 | /* Current margin has been applied. */ | |||
| 3749 | in_margin = false0; | |||
| 3750 | max_pos_margin = max_neg_margin = 0; | |||
| 3751 | } | |||
| 3752 | ||||
| 3753 | /* Handle clearance */ | |||
| 3754 | if (box->type != BOX_INLINE_CONTAINER && | |||
| 3755 | (y > 0) && (cy < y)) { | |||
| 3756 | /* box clears something*/ | |||
| 3757 | box->y += y - cy; | |||
| 3758 | cy = y; | |||
| 3759 | } | |||
| 3760 | ||||
| 3761 | /* Unless the box has an overflow style of visible, the box | |||
| 3762 | * establishes a new block context. */ | |||
| 3763 | if (box->type == BOX_FLEX || | |||
| 3764 | (box->type == BOX_BLOCK && box->style && | |||
| 3765 | (overflow_x != CSS_OVERFLOW_VISIBLE || | |||
| 3766 | overflow_y != CSS_OVERFLOW_VISIBLE))) { | |||
| 3767 | ||||
| 3768 | if (box->type == BOX_FLEX) { | |||
| 3769 | if (!layout_flex(box, box->width, content)) { | |||
| 3770 | return false0; | |||
| 3771 | } | |||
| 3772 | } else { | |||
| 3773 | layout_block_context(box, | |||
| 3774 | viewport_height, content); | |||
| 3775 | } | |||
| 3776 | ||||
| 3777 | cy += box->padding[TOP]; | |||
| 3778 | ||||
| 3779 | if (box->height == AUTO(-2147483647 -1)) { | |||
| 3780 | box->height = 0; | |||
| 3781 | layout_block_add_scrollbar(box, BOTTOM); | |||
| 3782 | } | |||
| 3783 | ||||
| 3784 | cx -= box->x; | |||
| 3785 | cy += box->height + box->padding[BOTTOM] + | |||
| 3786 | box->border[BOTTOM].width; | |||
| 3787 | y = box->y + box->padding[TOP] + box->height + | |||
| 3788 | box->padding[BOTTOM] + | |||
| 3789 | box->border[BOTTOM].width; | |||
| 3790 | ||||
| 3791 | /* Skip children, because they are done in the new | |||
| 3792 | * block context */ | |||
| 3793 | goto advance_to_next_box; | |||
| 3794 | } | |||
| 3795 | ||||
| 3796 | NSLOG(layout, DEBUG, "box %p, cx %i, cy %i, width %i",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3797, }; nslog__log(&_nslog_ctx , "box %p, cx %i, cy %i, width %i", box, cx, cy, box->width ); } } while(0) | |||
| 3797 | box, cx, cy, box->width)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 3797, }; nslog__log(&_nslog_ctx , "box %p, cx %i, cy %i, width %i", box, cx, cy, box->width ); } } while(0); | |||
| 3798 | ||||
| 3799 | /* Layout (except tables). */ | |||
| 3800 | if (box->object) { | |||
| 3801 | if (!layout_block_object(box)) | |||
| 3802 | return false0; | |||
| 3803 | ||||
| 3804 | } else if (box->type == BOX_INLINE_CONTAINER) { | |||
| 3805 | box->width = box->parent->width; | |||
| 3806 | if (!layout_inline_container(box, box->width, block, | |||
| 3807 | cx, cy, content)) | |||
| 3808 | return false0; | |||
| 3809 | ||||
| 3810 | } else if (box->type == BOX_TABLE) { | |||
| 3811 | /* Move down to avoid floats if necessary. */ | |||
| 3812 | int x0, x1; | |||
| 3813 | struct box *left, *right; | |||
| 3814 | y = cy; | |||
| 3815 | while (1) { | |||
| 3816 | enum css_width_e wtype; | |||
| 3817 | css_fixed width = 0; | |||
| 3818 | css_unit unit = CSS_UNIT_PX; | |||
| 3819 | ||||
| 3820 | wtype = css_computed_width(box->style, | |||
| 3821 | &width, &unit); | |||
| 3822 | ||||
| 3823 | x0 = cx; | |||
| 3824 | x1 = cx + box->parent->width; | |||
| 3825 | find_sides(block->float_children, y, | |||
| 3826 | y + box->height, | |||
| 3827 | &x0, &x1, &left, &right); | |||
| 3828 | if (wtype == CSS_WIDTH_AUTO) | |||
| 3829 | break; | |||
| 3830 | if (box->width <= x1 - x0) | |||
| 3831 | break; | |||
| 3832 | if (!left && !right) | |||
| 3833 | break; | |||
| 3834 | else if (!left) | |||
| 3835 | y = right->y + right->height + 1; | |||
| 3836 | else if (!right) | |||
| 3837 | y = left->y + left->height + 1; | |||
| 3838 | else if (left->y + left->height < | |||
| 3839 | right->y + right->height) | |||
| 3840 | y = left->y + left->height + 1; | |||
| 3841 | else | |||
| 3842 | y = right->y + right->height + 1; | |||
| 3843 | } | |||
| 3844 | box->x += x0 - cx; | |||
| 3845 | cx = x0; | |||
| 3846 | box->y += y - cy; | |||
| 3847 | cy = y; | |||
| 3848 | } | |||
| 3849 | ||||
| 3850 | /* Advance to next box. */ | |||
| 3851 | if (box->type == BOX_BLOCK && !box->object && !(box->iframe) && | |||
| 3852 | box->children) { | |||
| 3853 | /* Down into children. */ | |||
| 3854 | ||||
| 3855 | if (box == margin_collapse) { | |||
| 3856 | /* Current margin collapsed though to this box. | |||
| 3857 | * Unset margin_collapse. */ | |||
| 3858 | margin_collapse = NULL((void*)0); | |||
| 3859 | } | |||
| 3860 | ||||
| 3861 | y = box->padding[TOP]; | |||
| 3862 | box = box->children; | |||
| 3863 | box->y = y; | |||
| 3864 | cy += y; | |||
| 3865 | continue; | |||
| 3866 | } else if (box->type == BOX_BLOCK || box->object || | |||
| 3867 | box->flags & IFRAME) | |||
| 3868 | cy += box->padding[TOP]; | |||
| 3869 | ||||
| 3870 | if (box->type == BOX_BLOCK && box->height == AUTO(-2147483647 -1)) { | |||
| 3871 | box->height = 0; | |||
| 3872 | layout_block_add_scrollbar(box, BOTTOM); | |||
| 3873 | } | |||
| 3874 | ||||
| 3875 | cy += box->height + box->padding[BOTTOM] + | |||
| 3876 | box->border[BOTTOM].width; | |||
| 3877 | cx -= box->x; | |||
| 3878 | y = box->y + box->padding[TOP] + box->height + | |||
| 3879 | box->padding[BOTTOM] + | |||
| 3880 | box->border[BOTTOM].width; | |||
| 3881 | ||||
| 3882 | advance_to_next_box: | |||
| 3883 | if (!box->next) { | |||
| 3884 | /* No more siblings: | |||
| 3885 | * up to first ancestor with a sibling. */ | |||
| 3886 | ||||
| 3887 | do { | |||
| 3888 | if (box == margin_collapse) { | |||
| 3889 | /* Current margin collapsed though to | |||
| 3890 | * this box. Unset margin_collapse. */ | |||
| 3891 | margin_collapse = NULL((void*)0); | |||
| 3892 | } | |||
| 3893 | ||||
| 3894 | /* Apply bottom margin */ | |||
| 3895 | if (max_pos_margin < box->margin[BOTTOM]) | |||
| 3896 | max_pos_margin = box->margin[BOTTOM]; | |||
| 3897 | else if (max_neg_margin < -box->margin[BOTTOM]) | |||
| 3898 | max_neg_margin = -box->margin[BOTTOM]; | |||
| 3899 | ||||
| 3900 | box = box->parent; | |||
| 3901 | if (box == block) | |||
| 3902 | break; | |||
| 3903 | ||||
| 3904 | /* Margin is invalidated if this is a box | |||
| 3905 | * margins can't collapse through. */ | |||
| 3906 | if (box->type == BOX_BLOCK && | |||
| 3907 | box->flags & MAKE_HEIGHT) { | |||
| 3908 | margin_collapse = NULL((void*)0); | |||
| 3909 | in_margin = false0; | |||
| 3910 | max_pos_margin = max_neg_margin = 0; | |||
| 3911 | } | |||
| 3912 | ||||
| 3913 | if (box->height == AUTO(-2147483647 -1)) { | |||
| 3914 | box->height = y - box->padding[TOP]; | |||
| 3915 | ||||
| 3916 | if (box->type == BOX_BLOCK) | |||
| 3917 | layout_block_add_scrollbar(box, | |||
| 3918 | BOTTOM); | |||
| 3919 | } else | |||
| 3920 | cy += box->height - | |||
| 3921 | (y - box->padding[TOP]); | |||
| 3922 | ||||
| 3923 | /* Apply any min-height and max-height to | |||
| 3924 | * boxes in normal flow */ | |||
| 3925 | if (box->style && | |||
| 3926 | css_computed_position(box->style) != | |||
| 3927 | CSS_POSITION_ABSOLUTE && | |||
| 3928 | layout_apply_minmax_height( | |||
| 3929 | &content->unit_len_ctx, | |||
| 3930 | box, NULL((void*)0))) { | |||
| 3931 | /* Height altered */ | |||
| 3932 | /* Set current cy */ | |||
| 3933 | cy += box->height - | |||
| 3934 | (y - box->padding[TOP]); | |||
| 3935 | } | |||
| 3936 | ||||
| 3937 | cy += box->padding[BOTTOM] + | |||
| 3938 | box->border[BOTTOM].width; | |||
| 3939 | cx -= box->x; | |||
| 3940 | y = box->y + box->padding[TOP] + box->height + | |||
| 3941 | box->padding[BOTTOM] + | |||
| 3942 | box->border[BOTTOM].width; | |||
| 3943 | ||||
| 3944 | } while (box->next == NULL((void*)0)); | |||
| 3945 | if (box == block) | |||
| 3946 | break; | |||
| 3947 | } | |||
| 3948 | ||||
| 3949 | /* To next sibling. */ | |||
| 3950 | ||||
| 3951 | if (box == margin_collapse) { | |||
| 3952 | /* Current margin collapsed though to this box. | |||
| 3953 | * Unset margin_collapse. */ | |||
| 3954 | margin_collapse = NULL((void*)0); | |||
| 3955 | } | |||
| 3956 | ||||
| 3957 | if (max_pos_margin < box->margin[BOTTOM]) | |||
| 3958 | max_pos_margin = box->margin[BOTTOM]; | |||
| 3959 | else if (max_neg_margin < -box->margin[BOTTOM]) | |||
| 3960 | max_neg_margin = -box->margin[BOTTOM]; | |||
| 3961 | ||||
| 3962 | box = box->next; | |||
| 3963 | box->y = y; | |||
| 3964 | } | |||
| 3965 | ||||
| 3966 | /* Account for bottom margin of last contained block */ | |||
| 3967 | cy += max_pos_margin - max_neg_margin; | |||
| 3968 | ||||
| 3969 | /* Increase height to contain any floats inside (CSS 2.1 10.6.7). */ | |||
| 3970 | for (box = block->float_children; box; box = box->next_float) { | |||
| 3971 | y = box->y + box->height + box->padding[BOTTOM] + | |||
| 3972 | box->border[BOTTOM].width + box->margin[BOTTOM]; | |||
| 3973 | if (cy < y) | |||
| 3974 | cy = y; | |||
| 3975 | } | |||
| 3976 | ||||
| 3977 | if (block->height == AUTO(-2147483647 -1)) { | |||
| 3978 | block->height = cy - block->padding[TOP]; | |||
| 3979 | if (block->type == BOX_BLOCK) | |||
| 3980 | layout_block_add_scrollbar(block, BOTTOM); | |||
| 3981 | } | |||
| 3982 | ||||
| 3983 | if (block->style && css_computed_position(block->style) != | |||
| 3984 | CSS_POSITION_ABSOLUTE) { | |||
| 3985 | /* Block is in normal flow */ | |||
| 3986 | layout_apply_minmax_height(&content->unit_len_ctx, block, NULL((void*)0)); | |||
| 3987 | } | |||
| 3988 | ||||
| 3989 | if (block->gadget && | |||
| 3990 | (block->gadget->type == GADGET_TEXTAREA || | |||
| 3991 | block->gadget->type == GADGET_PASSWORD || | |||
| 3992 | block->gadget->type == GADGET_TEXTBOX)) { | |||
| 3993 | plot_font_style_t fstyle; | |||
| 3994 | int ta_width = block->padding[LEFT] + block->width + | |||
| 3995 | block->padding[RIGHT]; | |||
| 3996 | int ta_height = block->padding[TOP] + block->height + | |||
| 3997 | block->padding[BOTTOM]; | |||
| 3998 | font_plot_style_from_css(&content->unit_len_ctx, | |||
| 3999 | block->style, &fstyle); | |||
| 4000 | fstyle.background = NS_TRANSPARENT0x01000000; | |||
| 4001 | textarea_set_layout(block->gadget->data.text.ta, | |||
| 4002 | &fstyle, ta_width, ta_height, | |||
| 4003 | block->padding[TOP], block->padding[RIGHT], | |||
| 4004 | block->padding[BOTTOM], block->padding[LEFT]); | |||
| 4005 | } | |||
| 4006 | ||||
| 4007 | return true1; | |||
| 4008 | } | |||
| 4009 | ||||
| 4010 | /** | |||
| 4011 | * Get a dom node's element tag type. | |||
| 4012 | * | |||
| 4013 | * \param[in] node Node to get tag type of. | |||
| 4014 | * \param[in] type Returns element tag type on success. | |||
| 4015 | * \return true if on success, false otherwise. | |||
| 4016 | */ | |||
| 4017 | static bool_Bool | |||
| 4018 | layout__get_element_tag( | |||
| 4019 | const dom_node *node, | |||
| 4020 | dom_html_element_type *type) | |||
| 4021 | { | |||
| 4022 | dom_html_element_type element_type; | |||
| 4023 | dom_node_type node_type; | |||
| 4024 | dom_exception exc; | |||
| 4025 | ||||
| 4026 | exc = dom_node_get_node_type(node, &node_type)dom_node_get_node_type( (dom_node *) (node), (dom_node_type * ) (&node_type)); | |||
| 4027 | if (exc != DOM_NO_ERR || | |||
| 4028 | node_type != DOM_ELEMENT_NODE) { | |||
| 4029 | return false0; | |||
| 4030 | } | |||
| 4031 | ||||
| 4032 | exc = dom_html_element_get_tag_type(node, &element_type)dom_html_element_get_tag_type((const dom_html_element *) (node ), (&element_type)); | |||
| 4033 | if (exc != DOM_NO_ERR) { | |||
| 4034 | return false0; | |||
| 4035 | } | |||
| 4036 | ||||
| 4037 | *type = element_type; | |||
| 4038 | return true1; | |||
| 4039 | } | |||
| 4040 | ||||
| 4041 | ||||
| 4042 | /** | |||
| 4043 | * Check a node's tag type. | |||
| 4044 | * | |||
| 4045 | * \param[in] node Node to check tag type of. | |||
| 4046 | * \param[in] type Tag type to test for. | |||
| 4047 | * \return true if if node has given type, false otherwise. | |||
| 4048 | */ | |||
| 4049 | static inline bool_Bool | |||
| 4050 | layout__check_element_type( | |||
| 4051 | const dom_node *node, | |||
| 4052 | dom_html_element_type type) | |||
| 4053 | { | |||
| 4054 | dom_html_element_type element_type; | |||
| 4055 | ||||
| 4056 | if (!layout__get_element_tag(node, &element_type)) { | |||
| 4057 | return false0; | |||
| 4058 | } | |||
| 4059 | ||||
| 4060 | return element_type == type; | |||
| 4061 | } | |||
| 4062 | ||||
| 4063 | ||||
| 4064 | /** | |||
| 4065 | * Helper to get attribute value from a LI node. | |||
| 4066 | * | |||
| 4067 | * \param[in] li_node DOM node for the LI element; | |||
| 4068 | * \param[out] value_out Returns the value on success. | |||
| 4069 | * \return true if node has value, otherwise false. | |||
| 4070 | */ | |||
| 4071 | static bool_Bool | |||
| 4072 | layout__get_li_value(dom_node *li_node, dom_long *value_out) | |||
| 4073 | { | |||
| 4074 | dom_exception exc; | |||
| 4075 | dom_long value; | |||
| 4076 | bool_Bool has_value; | |||
| 4077 | ||||
| 4078 | /** \todo | |||
| 4079 | * dom_html_li_element_get_value() is rubbish and we can't tell | |||
| 4080 | * a lack of value attribute or invalid value from a perfectly | |||
| 4081 | * valid '-1'. | |||
| 4082 | * | |||
| 4083 | * This helps for the common case of no value. However we should | |||
| 4084 | * fix libdom to have some kind of sane interface to get numerical | |||
| 4085 | * attributes. | |||
| 4086 | */ | |||
| 4087 | exc = dom_element_has_attribute(li_node,dom_element_has_attribute( (dom_element *) (li_node), (corestring_dom_value ), (_Bool *) (&has_value)) | |||
| 4088 | corestring_dom_value,dom_element_has_attribute( (dom_element *) (li_node), (corestring_dom_value ), (_Bool *) (&has_value)) | |||
| 4089 | &has_value)dom_element_has_attribute( (dom_element *) (li_node), (corestring_dom_value ), (_Bool *) (&has_value)); | |||
| 4090 | if (exc != DOM_NO_ERR || has_value == false0) { | |||
| 4091 | return false0; | |||
| 4092 | } | |||
| 4093 | ||||
| 4094 | exc = dom_html_li_element_get_value( | |||
| 4095 | (dom_html_li_element *)li_node, | |||
| 4096 | &value); | |||
| 4097 | if (exc != DOM_NO_ERR) { | |||
| 4098 | return false0; | |||
| 4099 | } | |||
| 4100 | ||||
| 4101 | *value_out = value; | |||
| 4102 | return true1; | |||
| 4103 | } | |||
| 4104 | ||||
| 4105 | ||||
| 4106 | /** | |||
| 4107 | * Helper to get start attribute value from a OL node. | |||
| 4108 | * | |||
| 4109 | * \param[in] ol_node DOM node for the OL element; | |||
| 4110 | * \param[out] start_out Returns the value on success. | |||
| 4111 | * \return true if node has value, otherwise false. | |||
| 4112 | */ | |||
| 4113 | static bool_Bool | |||
| 4114 | layout__get_ol_start(dom_node *ol_node, dom_long *start_out) | |||
| 4115 | { | |||
| 4116 | dom_exception exc; | |||
| 4117 | dom_long start; | |||
| 4118 | bool_Bool has_start; | |||
| 4119 | ||||
| 4120 | /** \todo | |||
| 4121 | * see layout__get_li_value(). | |||
| 4122 | */ | |||
| 4123 | exc = dom_element_has_attribute(ol_node,dom_element_has_attribute( (dom_element *) (ol_node), (corestring_dom_start ), (_Bool *) (&has_start)) | |||
| 4124 | corestring_dom_start,dom_element_has_attribute( (dom_element *) (ol_node), (corestring_dom_start ), (_Bool *) (&has_start)) | |||
| 4125 | &has_start)dom_element_has_attribute( (dom_element *) (ol_node), (corestring_dom_start ), (_Bool *) (&has_start)); | |||
| 4126 | if (exc != DOM_NO_ERR || has_start == false0) { | |||
| 4127 | return false0; | |||
| 4128 | } | |||
| 4129 | ||||
| 4130 | exc = dom_html_olist_element_get_start( | |||
| 4131 | (dom_html_olist_element *)ol_node, | |||
| 4132 | &start); | |||
| 4133 | if (exc != DOM_NO_ERR) { | |||
| 4134 | return false0; | |||
| 4135 | } | |||
| 4136 | ||||
| 4137 | *start_out = start; | |||
| 4138 | return true1; | |||
| 4139 | } | |||
| 4140 | ||||
| 4141 | ||||
| 4142 | /** | |||
| 4143 | * Helper to get reversed attribute value from a OL node. | |||
| 4144 | * | |||
| 4145 | * \param[in] ol_node DOM node for the OL element; | |||
| 4146 | * \return true if node has reversed, otherwise false. | |||
| 4147 | */ | |||
| 4148 | static bool_Bool | |||
| 4149 | layout__get_ol_reversed(dom_node *ol_node) | |||
| 4150 | { | |||
| 4151 | dom_exception exc; | |||
| 4152 | bool_Bool has_reversed; | |||
| 4153 | ||||
| 4154 | exc = dom_element_has_attribute(ol_node,dom_element_has_attribute( (dom_element *) (ol_node), (corestring_dom_reversed ), (_Bool *) (&has_reversed)) | |||
| 4155 | corestring_dom_reversed,dom_element_has_attribute( (dom_element *) (ol_node), (corestring_dom_reversed ), (_Bool *) (&has_reversed)) | |||
| 4156 | &has_reversed)dom_element_has_attribute( (dom_element *) (ol_node), (corestring_dom_reversed ), (_Bool *) (&has_reversed)); | |||
| 4157 | if (exc != DOM_NO_ERR) { | |||
| 4158 | return false0; | |||
| 4159 | } | |||
| 4160 | ||||
| 4161 | return has_reversed; | |||
| 4162 | } | |||
| 4163 | ||||
| 4164 | ||||
| 4165 | /** | |||
| 4166 | * Get the number of list items for a list owner. | |||
| 4167 | * | |||
| 4168 | * \param[in] list_owner DOM node to count list items for. | |||
| 4169 | * \param[in] count_out Returns list item count on success. | |||
| 4170 | * \return true on success, otherwise false. | |||
| 4171 | */ | |||
| 4172 | static bool_Bool | |||
| 4173 | layout__get_list_item_count( | |||
| 4174 | dom_node *list_owner, dom_long *count_out) | |||
| 4175 | { | |||
| 4176 | dom_html_element_type tag_type; | |||
| 4177 | dom_exception exc; | |||
| 4178 | dom_node *child; | |||
| 4179 | int count; | |||
| 4180 | ||||
| 4181 | if (list_owner == NULL((void*)0)) { | |||
| 4182 | return false0; | |||
| 4183 | } | |||
| 4184 | ||||
| 4185 | if (!layout__get_element_tag(list_owner, &tag_type)) { | |||
| 4186 | return false0; | |||
| 4187 | } | |||
| 4188 | ||||
| 4189 | if (tag_type != DOM_HTML_ELEMENT_TYPE_OL && | |||
| 4190 | tag_type != DOM_HTML_ELEMENT_TYPE_UL) { | |||
| 4191 | return false0; | |||
| 4192 | } | |||
| 4193 | ||||
| 4194 | exc = dom_node_get_first_child(list_owner, &child)dom_node_get_first_child( (dom_node *) (list_owner), (dom_node **) (&child)); | |||
| 4195 | if (exc != DOM_NO_ERR) { | |||
| 4196 | return false0; | |||
| 4197 | } | |||
| 4198 | ||||
| 4199 | count = 0; | |||
| 4200 | while (child != NULL((void*)0)) { | |||
| 4201 | dom_node *temp_node; | |||
| 4202 | ||||
| 4203 | if (layout__check_element_type(child, | |||
| 4204 | DOM_HTML_ELEMENT_TYPE_LI)) { | |||
| 4205 | struct box *child_box; | |||
| 4206 | if (dom_node_get_user_data(child,dom_node_get_user_data( (dom_node *) (child), (corestring_dom___ns_key_box_node_data ), (void **) (&child_box)) | |||
| 4207 | corestring_dom___ns_key_box_node_data,dom_node_get_user_data( (dom_node *) (child), (corestring_dom___ns_key_box_node_data ), (void **) (&child_box)) | |||
| 4208 | &child_box)dom_node_get_user_data( (dom_node *) (child), (corestring_dom___ns_key_box_node_data ), (void **) (&child_box)) != DOM_NO_ERR) { | |||
| 4209 | dom_node_unref(child)dom_node_unref((dom_node *) (child)); | |||
| 4210 | return false0; | |||
| 4211 | } | |||
| 4212 | ||||
| 4213 | if (child_box != NULL((void*)0) && | |||
| 4214 | child_box->list_marker != NULL((void*)0)) { | |||
| 4215 | count++; | |||
| 4216 | } | |||
| 4217 | } | |||
| 4218 | ||||
| 4219 | exc = dom_node_get_next_sibling(child, &temp_node)dom_node_get_next_sibling( (dom_node *) (child), (dom_node ** ) (&temp_node)); | |||
| 4220 | dom_node_unref(child)dom_node_unref((dom_node *) (child)); | |||
| 4221 | if (exc != DOM_NO_ERR) { | |||
| 4222 | return false0; | |||
| 4223 | } | |||
| 4224 | ||||
| 4225 | child = temp_node; | |||
| 4226 | } | |||
| 4227 | ||||
| 4228 | *count_out = count; | |||
| 4229 | return true1; | |||
| 4230 | } | |||
| 4231 | ||||
| 4232 | ||||
| 4233 | /** | |||
| 4234 | * Handle list item counting, if this is a list owner box. | |||
| 4235 | * | |||
| 4236 | * \param[in] box Box to do list item counting for. | |||
| 4237 | */ | |||
| 4238 | static void | |||
| 4239 | layout__ordered_list_count( | |||
| 4240 | struct box *box) | |||
| 4241 | { | |||
| 4242 | dom_html_element_type tag_type; | |||
| 4243 | dom_exception exc; | |||
| 4244 | dom_node *child; | |||
| 4245 | int step = 1; | |||
| 4246 | dom_long next; | |||
| 4247 | ||||
| 4248 | if (box->node == NULL((void*)0)) { | |||
| 4249 | return; | |||
| 4250 | } | |||
| 4251 | ||||
| 4252 | if (!layout__get_element_tag(box->node, &tag_type)) { | |||
| 4253 | return; | |||
| 4254 | } | |||
| 4255 | ||||
| 4256 | if (tag_type != DOM_HTML_ELEMENT_TYPE_OL && | |||
| 4257 | tag_type != DOM_HTML_ELEMENT_TYPE_UL) { | |||
| 4258 | return; | |||
| 4259 | } | |||
| 4260 | ||||
| 4261 | next = 1; | |||
| 4262 | if (tag_type == DOM_HTML_ELEMENT_TYPE_OL) { | |||
| 4263 | bool_Bool have_start = layout__get_ol_start(box->node, &next); | |||
| 4264 | bool_Bool have_reversed = layout__get_ol_reversed(box->node); | |||
| 4265 | ||||
| 4266 | if (have_reversed) { | |||
| 4267 | step = -1; | |||
| 4268 | } | |||
| 4269 | ||||
| 4270 | if (!have_start && have_reversed) { | |||
| 4271 | layout__get_list_item_count(box->node, &next); | |||
| 4272 | } | |||
| 4273 | } | |||
| 4274 | ||||
| 4275 | exc = dom_node_get_first_child(box->node, &child)dom_node_get_first_child( (dom_node *) (box->node), (dom_node **) (&child)); | |||
| 4276 | if (exc != DOM_NO_ERR) { | |||
| 4277 | return; | |||
| 4278 | } | |||
| 4279 | ||||
| 4280 | while (child != NULL((void*)0)) { | |||
| 4281 | dom_node *temp_node; | |||
| 4282 | ||||
| 4283 | if (layout__check_element_type(child, | |||
| 4284 | DOM_HTML_ELEMENT_TYPE_LI)) { | |||
| 4285 | struct box *child_box; | |||
| 4286 | ||||
| 4287 | if (dom_node_get_user_data(child,dom_node_get_user_data( (dom_node *) (child), (corestring_dom___ns_key_box_node_data ), (void **) (&child_box)) | |||
| 4288 | corestring_dom___ns_key_box_node_data,dom_node_get_user_data( (dom_node *) (child), (corestring_dom___ns_key_box_node_data ), (void **) (&child_box)) | |||
| 4289 | &child_box)dom_node_get_user_data( (dom_node *) (child), (corestring_dom___ns_key_box_node_data ), (void **) (&child_box)) != DOM_NO_ERR) { | |||
| 4290 | dom_node_unref(child)dom_node_unref((dom_node *) (child)); | |||
| 4291 | return; | |||
| 4292 | } | |||
| 4293 | ||||
| 4294 | if (child_box != NULL((void*)0) && | |||
| 4295 | child_box->list_marker != NULL((void*)0)) { | |||
| 4296 | dom_long value; | |||
| 4297 | struct box *marker = child_box->list_marker; | |||
| 4298 | if (layout__get_li_value(child, &value)) { | |||
| 4299 | marker->list_value = value; | |||
| 4300 | next = marker->list_value; | |||
| 4301 | } else { | |||
| 4302 | marker->list_value = next; | |||
| 4303 | } | |||
| 4304 | next += step; | |||
| 4305 | } | |||
| 4306 | } | |||
| 4307 | ||||
| 4308 | exc = dom_node_get_next_sibling(child, &temp_node)dom_node_get_next_sibling( (dom_node *) (child), (dom_node ** ) (&temp_node)); | |||
| 4309 | dom_node_unref(child)dom_node_unref((dom_node *) (child)); | |||
| 4310 | if (exc != DOM_NO_ERR) { | |||
| 4311 | return; | |||
| 4312 | } | |||
| 4313 | ||||
| 4314 | child = temp_node; | |||
| 4315 | } | |||
| 4316 | } | |||
| 4317 | ||||
| 4318 | /** | |||
| 4319 | * Set up the marker text for a numerical list item. | |||
| 4320 | * | |||
| 4321 | * \param[in] content The HTML content. | |||
| 4322 | * \param[in] box The list item's main box. | |||
| 4323 | */ | |||
| 4324 | static void | |||
| 4325 | layout__set_numerical_marker_text( | |||
| 4326 | const html_content *content, | |||
| 4327 | struct box *box) | |||
| 4328 | { | |||
| 4329 | struct box *marker = box->list_marker; | |||
| 4330 | size_t counter_len; | |||
| 4331 | css_error css_res; | |||
| 4332 | enum { | |||
| 4333 | /** | |||
| 4334 | * initial length of a list marker buffer | |||
| 4335 | * | |||
| 4336 | * enough for 9,999,999,999,999,999,999 in decimal | |||
| 4337 | * or five characters for 4-byte UTF-8. | |||
| 4338 | */ | |||
| 4339 | LIST_MARKER_SIZE = 20, | |||
| 4340 | }; | |||
| 4341 | ||||
| 4342 | marker->text = talloc_array(content->bctx, char, LIST_MARKER_SIZE)(char *)_talloc_array(content->bctx, sizeof(char), LIST_MARKER_SIZE , "char"); | |||
| 4343 | if (marker->text == NULL((void*)0)) { | |||
| 4344 | return; | |||
| 4345 | } | |||
| 4346 | ||||
| 4347 | css_res = css_computed_format_list_style(box->style, marker->list_value, | |||
| 4348 | marker->text, LIST_MARKER_SIZE, &counter_len); | |||
| 4349 | if (css_res == CSS_OK) { | |||
| 4350 | if (counter_len > LIST_MARKER_SIZE) { | |||
| 4351 | /* Use computed size as marker did not fit in | |||
| 4352 | * default allocation. */ | |||
| 4353 | marker->text = talloc_realloc(content->bctx,(char *)_talloc_realloc_array(content->bctx, marker->text , sizeof(char), counter_len, "char") | |||
| 4354 | marker->text,(char *)_talloc_realloc_array(content->bctx, marker->text , sizeof(char), counter_len, "char") | |||
| 4355 | char,(char *)_talloc_realloc_array(content->bctx, marker->text , sizeof(char), counter_len, "char") | |||
| 4356 | counter_len)(char *)_talloc_realloc_array(content->bctx, marker->text , sizeof(char), counter_len, "char"); | |||
| 4357 | if (marker->text == NULL((void*)0)) { | |||
| 4358 | return; | |||
| 4359 | } | |||
| 4360 | css_computed_format_list_style(box->style, | |||
| 4361 | marker->list_value, marker->text, | |||
| 4362 | counter_len, &counter_len); | |||
| 4363 | } | |||
| 4364 | marker->length = counter_len; | |||
| 4365 | } | |||
| 4366 | } | |||
| 4367 | ||||
| 4368 | /** | |||
| 4369 | * Find out if box's style represents a numerical list style type. | |||
| 4370 | * | |||
| 4371 | * \param[in] b Box with style to test. | |||
| 4372 | * \return true if box has numerical list style type, false otherwise. | |||
| 4373 | */ | |||
| 4374 | static bool_Bool | |||
| 4375 | layout__list_item_is_numerical( | |||
| 4376 | const struct box *b) | |||
| 4377 | { | |||
| 4378 | enum css_list_style_type_e t = css_computed_list_style_type(b->style); | |||
| 4379 | ||||
| 4380 | switch (t) { | |||
| 4381 | case CSS_LIST_STYLE_TYPE_DISC: /* Fall through. */ | |||
| 4382 | case CSS_LIST_STYLE_TYPE_CIRCLE: /* Fall through. */ | |||
| 4383 | case CSS_LIST_STYLE_TYPE_SQUARE: /* Fall through. */ | |||
| 4384 | case CSS_LIST_STYLE_TYPE_NONE: | |||
| 4385 | return false0; | |||
| 4386 | ||||
| 4387 | default: | |||
| 4388 | return true1; | |||
| 4389 | } | |||
| 4390 | } | |||
| 4391 | ||||
| 4392 | /** | |||
| 4393 | * Layout list markers. | |||
| 4394 | */ | |||
| 4395 | static void | |||
| 4396 | layout_lists(const html_content *content, struct box *box) | |||
| 4397 | { | |||
| 4398 | struct box *child; | |||
| 4399 | ||||
| 4400 | layout__ordered_list_count(box); | |||
| 4401 | ||||
| 4402 | for (child = box->children; child; child = child->next) { | |||
| 4403 | if (child->list_marker) { | |||
| 4404 | struct box *marker = child->list_marker; | |||
| 4405 | ||||
| 4406 | if (layout__list_item_is_numerical(child)) { | |||
| 4407 | if (marker->text == NULL((void*)0)) { | |||
| 4408 | layout__set_numerical_marker_text( | |||
| 4409 | content, child); | |||
| 4410 | } | |||
| 4411 | } | |||
| 4412 | if (marker->object) { | |||
| 4413 | marker->width = | |||
| 4414 | content_get_width(marker->object); | |||
| 4415 | marker->x = -marker->width; | |||
| 4416 | marker->height = | |||
| 4417 | content_get_height(marker->object); | |||
| 4418 | marker->y = (line_height( | |||
| 4419 | &content->unit_len_ctx, | |||
| 4420 | marker->style) - | |||
| 4421 | marker->height) / 2; | |||
| 4422 | } else if (marker->text) { | |||
| 4423 | if (marker->width == UNKNOWN_WIDTH2147483647) { | |||
| 4424 | plot_font_style_t fstyle; | |||
| 4425 | font_plot_style_from_css( | |||
| 4426 | &content->unit_len_ctx, | |||
| 4427 | marker->style, | |||
| 4428 | &fstyle); | |||
| 4429 | content->font_func->width(&fstyle, | |||
| 4430 | marker->text, | |||
| 4431 | marker->length, | |||
| 4432 | &marker->width); | |||
| 4433 | marker->flags |= MEASURED; | |||
| 4434 | } | |||
| 4435 | marker->x = -marker->width; | |||
| 4436 | marker->y = 0; | |||
| 4437 | marker->height = line_height( | |||
| 4438 | &content->unit_len_ctx, | |||
| 4439 | marker->style); | |||
| 4440 | } else { | |||
| 4441 | marker->x = 0; | |||
| 4442 | marker->y = 0; | |||
| 4443 | marker->width = 0; | |||
| 4444 | marker->height = 0; | |||
| 4445 | } | |||
| 4446 | /* Gap between marker and content */ | |||
| 4447 | marker->x -= 4; | |||
| 4448 | } | |||
| 4449 | layout_lists(content, child); | |||
| 4450 | } | |||
| 4451 | } | |||
| 4452 | ||||
| 4453 | ||||
| 4454 | /** | |||
| 4455 | * Compute box offsets for a relatively or absolutely positioned box with | |||
| 4456 | * respect to a box. | |||
| 4457 | * | |||
| 4458 | * \param unit_len_ctx Length conversion context | |||
| 4459 | * \param box box to compute offsets for | |||
| 4460 | * \param containing_block box to compute percentages with respect to | |||
| 4461 | * \param top updated to top offset, or AUTO | |||
| 4462 | * \param right updated to right offset, or AUTO | |||
| 4463 | * \param bottom updated to bottom offset, or AUTO | |||
| 4464 | * \param left updated to left offset, or AUTO | |||
| 4465 | * | |||
| 4466 | * See CSS 2.1 9.3.2. containing_block must have width and height. | |||
| 4467 | */ | |||
| 4468 | static void | |||
| 4469 | layout_compute_offsets(const css_unit_ctx *unit_len_ctx, | |||
| 4470 | struct box *box, | |||
| 4471 | struct box *containing_block, | |||
| 4472 | int *top, | |||
| 4473 | int *right, | |||
| 4474 | int *bottom, | |||
| 4475 | int *left) | |||
| 4476 | { | |||
| 4477 | uint32_t type; | |||
| 4478 | css_fixed value = 0; | |||
| 4479 | css_unit unit = CSS_UNIT_PX; | |||
| 4480 | ||||
| 4481 | assert(containing_block->width != UNKNOWN_WIDTH)((containing_block->width != 2147483647) ? (void) (0) : __assert_fail ("containing_block->width != UNKNOWN_WIDTH", "content/handlers/html/layout.c" , 4481, __extension__ __PRETTY_FUNCTION__)); | |||
| 4482 | assert(containing_block->width != AUTO)((containing_block->width != (-2147483647 -1)) ? (void) (0 ) : __assert_fail ("containing_block->width != AUTO", "content/handlers/html/layout.c" , 4482, __extension__ __PRETTY_FUNCTION__)); | |||
| 4483 | assert(containing_block->height != AUTO)((containing_block->height != (-2147483647 -1)) ? (void) ( 0) : __assert_fail ("containing_block->height != AUTO", "content/handlers/html/layout.c" , 4483, __extension__ __PRETTY_FUNCTION__)); | |||
| 4484 | ||||
| 4485 | /* left */ | |||
| 4486 | type = css_computed_left(box->style, &value, &unit); | |||
| 4487 | if (type == CSS_LEFT_SET) { | |||
| 4488 | if (unit == CSS_UNIT_PCT) { | |||
| 4489 | *left = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->width)), ( 0x00019000)))) >> 10)) | |||
| 4490 | containing_block->width)((((css_divide_fixed(((value * containing_block->width)), ( 0x00019000)))) >> 10)); | |||
| 4491 | } else { | |||
| 4492 | *left = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
| 4493 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
| 4494 | value, unit))((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10); | |||
| 4495 | } | |||
| 4496 | } else { | |||
| 4497 | *left = AUTO(-2147483647 -1); | |||
| 4498 | } | |||
| 4499 | ||||
| 4500 | /* right */ | |||
| 4501 | type = css_computed_right(box->style, &value, &unit); | |||
| 4502 | if (type == CSS_RIGHT_SET) { | |||
| 4503 | if (unit == CSS_UNIT_PCT) { | |||
| 4504 | *right = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->width)), ( 0x00019000)))) >> 10)) | |||
| 4505 | containing_block->width)((((css_divide_fixed(((value * containing_block->width)), ( 0x00019000)))) >> 10)); | |||
| 4506 | } else { | |||
| 4507 | *right = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
| 4508 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
| 4509 | value, unit))((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10); | |||
| 4510 | } | |||
| 4511 | } else { | |||
| 4512 | *right = AUTO(-2147483647 -1); | |||
| 4513 | } | |||
| 4514 | ||||
| 4515 | /* top */ | |||
| 4516 | type = css_computed_top(box->style, &value, &unit); | |||
| 4517 | if (type == CSS_TOP_SET) { | |||
| 4518 | if (unit == CSS_UNIT_PCT) { | |||
| 4519 | *top = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)) | |||
| 4520 | containing_block->height)((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)); | |||
| 4521 | } else { | |||
| 4522 | *top = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
| 4523 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
| 4524 | value, unit))((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10); | |||
| 4525 | } | |||
| 4526 | } else { | |||
| 4527 | *top = AUTO(-2147483647 -1); | |||
| 4528 | } | |||
| 4529 | ||||
| 4530 | /* bottom */ | |||
| 4531 | type = css_computed_bottom(box->style, &value, &unit); | |||
| 4532 | if (type == CSS_BOTTOM_SET) { | |||
| 4533 | if (unit == CSS_UNIT_PCT) { | |||
| 4534 | *bottom = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)) | |||
| 4535 | containing_block->height)((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)); | |||
| 4536 | } else { | |||
| 4537 | *bottom = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
| 4538 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
| 4539 | value, unit))((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10); | |||
| 4540 | } | |||
| 4541 | } else { | |||
| 4542 | *bottom = AUTO(-2147483647 -1); | |||
| 4543 | } | |||
| 4544 | } | |||
| 4545 | ||||
| 4546 | ||||
| 4547 | /** | |||
| 4548 | * Layout and position an absolutely positioned box. | |||
| 4549 | * | |||
| 4550 | * \param box absolute box to layout and position | |||
| 4551 | * \param containing_block containing block | |||
| 4552 | * \param cx position of box relative to containing_block | |||
| 4553 | * \param cy position of box relative to containing_block | |||
| 4554 | * \param content memory pool for any new boxes | |||
| 4555 | * \return true on success, false on memory exhaustion | |||
| 4556 | */ | |||
| 4557 | static bool_Bool | |||
| 4558 | layout_absolute(struct box *box, | |||
| 4559 | struct box *containing_block, | |||
| 4560 | int cx, int cy, | |||
| 4561 | html_content *content) | |||
| 4562 | { | |||
| 4563 | int static_left, static_top; /* static position */ | |||
| 4564 | int top, right, bottom, left; | |||
| 4565 | int width, height, max_width, min_width; | |||
| 4566 | int *margin = box->margin; | |||
| 4567 | int *padding = box->padding; | |||
| 4568 | struct box_border *border = box->border; | |||
| 4569 | int available_width = containing_block->width; | |||
| 4570 | int space; | |||
| 4571 | ||||
| 4572 | assert(box->type == BOX_BLOCK || box->type == BOX_TABLE ||((box->type == BOX_BLOCK || box->type == BOX_TABLE || box ->type == BOX_INLINE_BLOCK || box->type == BOX_FLEX || box ->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("box->type == BOX_BLOCK || box->type == BOX_TABLE || box->type == BOX_INLINE_BLOCK || box->type == BOX_FLEX || box->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 4575, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4573 | box->type == BOX_INLINE_BLOCK ||((box->type == BOX_BLOCK || box->type == BOX_TABLE || box ->type == BOX_INLINE_BLOCK || box->type == BOX_FLEX || box ->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("box->type == BOX_BLOCK || box->type == BOX_TABLE || box->type == BOX_INLINE_BLOCK || box->type == BOX_FLEX || box->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 4575, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4574 | box->type == BOX_FLEX ||((box->type == BOX_BLOCK || box->type == BOX_TABLE || box ->type == BOX_INLINE_BLOCK || box->type == BOX_FLEX || box ->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("box->type == BOX_BLOCK || box->type == BOX_TABLE || box->type == BOX_INLINE_BLOCK || box->type == BOX_FLEX || box->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 4575, __extension__ __PRETTY_FUNCTION__ )) | |||
| 4575 | box->type == BOX_INLINE_FLEX)((box->type == BOX_BLOCK || box->type == BOX_TABLE || box ->type == BOX_INLINE_BLOCK || box->type == BOX_FLEX || box ->type == BOX_INLINE_FLEX) ? (void) (0) : __assert_fail ("box->type == BOX_BLOCK || box->type == BOX_TABLE || box->type == BOX_INLINE_BLOCK || box->type == BOX_FLEX || box->type == BOX_INLINE_FLEX" , "content/handlers/html/layout.c", 4575, __extension__ __PRETTY_FUNCTION__ )); | |||
| 4576 | ||||
| 4577 | /* The static position is where the box would be if it was not | |||
| 4578 | * absolutely positioned. The x and y are filled in by | |||
| 4579 | * layout_block_context(). */ | |||
| 4580 | static_left = cx + box->x; | |||
| 4581 | static_top = cy + box->y; | |||
| 4582 | ||||
| 4583 | if (containing_block->type == BOX_BLOCK || | |||
| 4584 | containing_block->type == BOX_INLINE_BLOCK || | |||
| 4585 | containing_block->type == BOX_TABLE_CELL) { | |||
| 4586 | /* Block level container => temporarily increase containing | |||
| 4587 | * block dimensions to include padding (we restore this | |||
| 4588 | * again at the end) */ | |||
| 4589 | containing_block->width += containing_block->padding[LEFT] + | |||
| 4590 | containing_block->padding[RIGHT]; | |||
| 4591 | containing_block->height += containing_block->padding[TOP] + | |||
| 4592 | containing_block->padding[BOTTOM]; | |||
| 4593 | } | |||
| 4594 | ||||
| 4595 | layout_compute_offsets(&content->unit_len_ctx, box, containing_block, | |||
| 4596 | &top, &right, &bottom, &left); | |||
| 4597 | ||||
| 4598 | /* Pass containing block into layout_find_dimensions via the float | |||
| 4599 | * containing block box member. This is unused for absolutely positioned | |||
| 4600 | * boxes because a box can't be floated and absolutely positioned. */ | |||
| 4601 | box->float_container = containing_block; | |||
| 4602 | layout_find_dimensions(&content->unit_len_ctx, available_width, -1, | |||
| 4603 | box, box->style, &width, &height, | |||
| 4604 | &max_width, &min_width, 0, 0, | |||
| 4605 | margin, padding, border); | |||
| 4606 | box->float_container = NULL((void*)0); | |||
| 4607 | ||||
| 4608 | /* 10.3.7 */ | |||
| 4609 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4613, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", left, margin [LEFT], border[LEFT].width, padding[LEFT], width, padding[RIGHT ], border[RIGHT].width, margin[RIGHT], right, containing_block ->width); } } while(0) | |||
| 4610 | "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4613, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", left, margin [LEFT], border[LEFT].width, padding[LEFT], width, padding[RIGHT ], border[RIGHT].width, margin[RIGHT], right, containing_block ->width); } } while(0) | |||
| 4611 | left, margin[LEFT], border[LEFT].width, padding[LEFT], width,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4613, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", left, margin [LEFT], border[LEFT].width, padding[LEFT], width, padding[RIGHT ], border[RIGHT].width, margin[RIGHT], right, containing_block ->width); } } while(0) | |||
| 4612 | padding[RIGHT], border[RIGHT].width, margin[RIGHT], right,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4613, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", left, margin [LEFT], border[LEFT].width, padding[LEFT], width, padding[RIGHT ], border[RIGHT].width, margin[RIGHT], right, containing_block ->width); } } while(0) | |||
| 4613 | containing_block->width)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4613, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", left, margin [LEFT], border[LEFT].width, padding[LEFT], width, padding[RIGHT ], border[RIGHT].width, margin[RIGHT], right, containing_block ->width); } } while(0); | |||
| 4614 | ||||
| 4615 | ||||
| 4616 | if (left == AUTO(-2147483647 -1) && width == AUTO(-2147483647 -1) && right == AUTO(-2147483647 -1)) { | |||
| 4617 | if (margin[LEFT] == AUTO(-2147483647 -1)) | |||
| 4618 | margin[LEFT] = 0; | |||
| 4619 | if (margin[RIGHT] == AUTO(-2147483647 -1)) | |||
| 4620 | margin[RIGHT] = 0; | |||
| 4621 | left = static_left; | |||
| 4622 | ||||
| 4623 | width = min(max(box->min_width, available_width),((((((box->min_width)>(available_width))?(box->min_width ):(available_width)))<(box->max_width))?((((box->min_width )>(available_width))?(box->min_width):(available_width) )):(box->max_width)) | |||
| 4624 | box->max_width)((((((box->min_width)>(available_width))?(box->min_width ):(available_width)))<(box->max_width))?((((box->min_width )>(available_width))?(box->min_width):(available_width) )):(box->max_width)); | |||
| 4625 | width -= box->margin[LEFT] + box->border[LEFT].width + | |||
| 4626 | box->padding[LEFT] + box->padding[RIGHT] + | |||
| 4627 | box->border[RIGHT].width + box->margin[RIGHT]; | |||
| 4628 | ||||
| 4629 | /* Adjust for {min|max}-width */ | |||
| 4630 | if (max_width >= 0 && width > max_width) width = max_width; | |||
| 4631 | if (width < min_width) width = min_width; | |||
| 4632 | ||||
| 4633 | right = containing_block->width - | |||
| 4634 | left - | |||
| 4635 | margin[LEFT] - border[LEFT].width - padding[LEFT] - | |||
| 4636 | width - | |||
| 4637 | padding[RIGHT] - border[RIGHT].width - margin[RIGHT]; | |||
| 4638 | } else if (left != AUTO(-2147483647 -1) && width != AUTO(-2147483647 -1) && right != AUTO(-2147483647 -1)) { | |||
| 4639 | ||||
| 4640 | /* Adjust for {min|max}-width */ | |||
| 4641 | if (max_width >= 0 && width > max_width) width = max_width; | |||
| 4642 | if (min_width > 0 && width < min_width) width = min_width; | |||
| 4643 | ||||
| 4644 | if (margin[LEFT] == AUTO(-2147483647 -1) && margin[RIGHT] == AUTO(-2147483647 -1)) { | |||
| 4645 | space = containing_block->width - | |||
| 4646 | left - border[LEFT].width - | |||
| 4647 | padding[LEFT] - width - padding[RIGHT] - | |||
| 4648 | border[RIGHT].width - right; | |||
| 4649 | if (space < 0) { | |||
| 4650 | margin[LEFT] = 0; | |||
| 4651 | margin[RIGHT] = space; | |||
| 4652 | } else { | |||
| 4653 | margin[LEFT] = margin[RIGHT] = space / 2; | |||
| 4654 | } | |||
| 4655 | } else if (margin[LEFT] == AUTO(-2147483647 -1)) { | |||
| 4656 | margin[LEFT] = containing_block->width - | |||
| 4657 | left - border[LEFT].width - | |||
| 4658 | padding[LEFT] - width - padding[RIGHT] - | |||
| 4659 | border[RIGHT].width - margin[RIGHT] - | |||
| 4660 | right; | |||
| 4661 | } else if (margin[RIGHT] == AUTO(-2147483647 -1)) { | |||
| 4662 | margin[RIGHT] = containing_block->width - | |||
| 4663 | left - margin[LEFT] - | |||
| 4664 | border[LEFT].width - | |||
| 4665 | padding[LEFT] - width - padding[RIGHT] - | |||
| 4666 | border[RIGHT].width - right; | |||
| 4667 | } else { | |||
| 4668 | right = containing_block->width - | |||
| 4669 | left - margin[LEFT] - | |||
| 4670 | border[LEFT].width - | |||
| 4671 | padding[LEFT] - width - padding[RIGHT] - | |||
| 4672 | border[RIGHT].width - margin[RIGHT]; | |||
| 4673 | } | |||
| 4674 | } else { | |||
| 4675 | if (margin[LEFT] == AUTO(-2147483647 -1)) | |||
| 4676 | margin[LEFT] = 0; | |||
| 4677 | if (margin[RIGHT] == AUTO(-2147483647 -1)) | |||
| 4678 | margin[RIGHT] = 0; | |||
| 4679 | ||||
| 4680 | if (left == AUTO(-2147483647 -1) && width == AUTO(-2147483647 -1) && right != AUTO(-2147483647 -1)) { | |||
| 4681 | available_width -= right; | |||
| 4682 | ||||
| 4683 | width = min(max(box->min_width, available_width),((((((box->min_width)>(available_width))?(box->min_width ):(available_width)))<(box->max_width))?((((box->min_width )>(available_width))?(box->min_width):(available_width) )):(box->max_width)) | |||
| 4684 | box->max_width)((((((box->min_width)>(available_width))?(box->min_width ):(available_width)))<(box->max_width))?((((box->min_width )>(available_width))?(box->min_width):(available_width) )):(box->max_width)); | |||
| 4685 | width -= box->margin[LEFT] + box->border[LEFT].width + | |||
| 4686 | box->padding[LEFT] + box->padding[RIGHT] + | |||
| 4687 | box->border[RIGHT].width + box->margin[RIGHT]; | |||
| 4688 | ||||
| 4689 | /* Adjust for {min|max}-width */ | |||
| 4690 | if (max_width >= 0 && width > max_width) | |||
| 4691 | width = max_width; | |||
| 4692 | if (width < min_width) | |||
| 4693 | width = min_width; | |||
| 4694 | ||||
| 4695 | left = containing_block->width - | |||
| 4696 | margin[LEFT] - border[LEFT].width - | |||
| 4697 | padding[LEFT] - width - padding[RIGHT] - | |||
| 4698 | border[RIGHT].width - margin[RIGHT] - | |||
| 4699 | right; | |||
| 4700 | } else if (left == AUTO(-2147483647 -1) && width != AUTO(-2147483647 -1) && right == AUTO(-2147483647 -1)) { | |||
| 4701 | ||||
| 4702 | /* Adjust for {min|max}-width */ | |||
| 4703 | if (max_width >= 0 && width > max_width) | |||
| 4704 | width = max_width; | |||
| 4705 | if (min_width > 0 && width < min_width) | |||
| 4706 | width = min_width; | |||
| 4707 | ||||
| 4708 | left = static_left; | |||
| 4709 | right = containing_block->width - | |||
| 4710 | left - margin[LEFT] - | |||
| 4711 | border[LEFT].width - | |||
| 4712 | padding[LEFT] - width - padding[RIGHT] - | |||
| 4713 | border[RIGHT].width - margin[RIGHT]; | |||
| 4714 | } else if (left != AUTO(-2147483647 -1) && width == AUTO(-2147483647 -1) && right == AUTO(-2147483647 -1)) { | |||
| 4715 | available_width -= left; | |||
| 4716 | ||||
| 4717 | width = min(max(box->min_width, available_width),((((((box->min_width)>(available_width))?(box->min_width ):(available_width)))<(box->max_width))?((((box->min_width )>(available_width))?(box->min_width):(available_width) )):(box->max_width)) | |||
| 4718 | box->max_width)((((((box->min_width)>(available_width))?(box->min_width ):(available_width)))<(box->max_width))?((((box->min_width )>(available_width))?(box->min_width):(available_width) )):(box->max_width)); | |||
| 4719 | width -= box->margin[LEFT] + box->border[LEFT].width + | |||
| 4720 | box->padding[LEFT] + box->padding[RIGHT] + | |||
| 4721 | box->border[RIGHT].width + box->margin[RIGHT]; | |||
| 4722 | ||||
| 4723 | /* Adjust for {min|max}-width */ | |||
| 4724 | if (max_width >= 0 && width > max_width) | |||
| 4725 | width = max_width; | |||
| 4726 | if (width < min_width) | |||
| 4727 | width = min_width; | |||
| 4728 | ||||
| 4729 | right = containing_block->width - | |||
| 4730 | left - margin[LEFT] - | |||
| 4731 | border[LEFT].width - | |||
| 4732 | padding[LEFT] - width - padding[RIGHT] - | |||
| 4733 | border[RIGHT].width - margin[RIGHT]; | |||
| 4734 | } else if (left == AUTO(-2147483647 -1) && width != AUTO(-2147483647 -1) && right != AUTO(-2147483647 -1)) { | |||
| 4735 | ||||
| 4736 | /* Adjust for {min|max}-width */ | |||
| 4737 | if (max_width >= 0 && width > max_width) | |||
| 4738 | width = max_width; | |||
| 4739 | if (width < min_width) | |||
| 4740 | width = min_width; | |||
| 4741 | ||||
| 4742 | left = containing_block->width - | |||
| 4743 | margin[LEFT] - border[LEFT].width - | |||
| 4744 | padding[LEFT] - width - padding[RIGHT] - | |||
| 4745 | border[RIGHT].width - margin[RIGHT] - | |||
| 4746 | right; | |||
| 4747 | } else if (left != AUTO(-2147483647 -1) && width == AUTO(-2147483647 -1) && right != AUTO(-2147483647 -1)) { | |||
| 4748 | width = containing_block->width - | |||
| 4749 | left - margin[LEFT] - | |||
| 4750 | border[LEFT].width - | |||
| 4751 | padding[LEFT] - padding[RIGHT] - | |||
| 4752 | border[RIGHT].width - margin[RIGHT] - | |||
| 4753 | right; | |||
| 4754 | ||||
| 4755 | /* Adjust for {min|max}-width */ | |||
| 4756 | if (max_width >= 0 && width > max_width) | |||
| 4757 | width = max_width; | |||
| 4758 | if (width < min_width) | |||
| 4759 | width = min_width; | |||
| 4760 | ||||
| 4761 | } else if (left != AUTO(-2147483647 -1) && width != AUTO(-2147483647 -1) && right == AUTO(-2147483647 -1)) { | |||
| 4762 | ||||
| 4763 | /* Adjust for {min|max}-width */ | |||
| 4764 | if (max_width >= 0 && width > max_width) | |||
| 4765 | width = max_width; | |||
| 4766 | if (width < min_width) | |||
| 4767 | width = min_width; | |||
| 4768 | ||||
| 4769 | right = containing_block->width - | |||
| 4770 | left - margin[LEFT] - | |||
| 4771 | border[LEFT].width - | |||
| 4772 | padding[LEFT] - width - padding[RIGHT] - | |||
| 4773 | border[RIGHT].width - margin[RIGHT]; | |||
| 4774 | } | |||
| 4775 | } | |||
| 4776 | ||||
| 4777 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4781, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", left, margin [LEFT], border[LEFT].width, padding[LEFT], width, padding[RIGHT ], border[RIGHT].width, margin[RIGHT], right, containing_block ->width); } } while(0) | |||
| 4778 | "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4781, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", left, margin [LEFT], border[LEFT].width, padding[LEFT], width, padding[RIGHT ], border[RIGHT].width, margin[RIGHT], right, containing_block ->width); } } while(0) | |||
| 4779 | left, margin[LEFT], border[LEFT].width, padding[LEFT], width,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4781, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", left, margin [LEFT], border[LEFT].width, padding[LEFT], width, padding[RIGHT ], border[RIGHT].width, margin[RIGHT], right, containing_block ->width); } } while(0) | |||
| 4780 | padding[RIGHT], border[RIGHT].width, margin[RIGHT], right,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4781, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", left, margin [LEFT], border[LEFT].width, padding[LEFT], width, padding[RIGHT ], border[RIGHT].width, margin[RIGHT], right, containing_block ->width); } } while(0) | |||
| 4781 | containing_block->width)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4781, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", left, margin [LEFT], border[LEFT].width, padding[LEFT], width, padding[RIGHT ], border[RIGHT].width, margin[RIGHT], right, containing_block ->width); } } while(0); | |||
| 4782 | ||||
| 4783 | box->x = left + margin[LEFT] + border[LEFT].width - cx; | |||
| 4784 | if (containing_block->type == BOX_BLOCK || | |||
| 4785 | containing_block->type == BOX_INLINE_BLOCK || | |||
| 4786 | containing_block->type == BOX_TABLE_CELL) { | |||
| 4787 | /* Block-level ancestor => reset container's width */ | |||
| 4788 | containing_block->width -= containing_block->padding[LEFT] + | |||
| 4789 | containing_block->padding[RIGHT]; | |||
| 4790 | } else { | |||
| 4791 | /** \todo inline ancestors */ | |||
| 4792 | } | |||
| 4793 | box->width = width; | |||
| 4794 | box->height = height; | |||
| 4795 | ||||
| 4796 | if (box->type == BOX_BLOCK || box->type == BOX_INLINE_BLOCK || | |||
| 4797 | box->object || box->flags & IFRAME) { | |||
| 4798 | if (!layout_block_context(box, -1, content)) | |||
| 4799 | return false0; | |||
| 4800 | } else if (box->type == BOX_TABLE) { | |||
| 4801 | /* layout_table also expects the containing block to be | |||
| 4802 | * stored in the float_container field */ | |||
| 4803 | box->float_container = containing_block; | |||
| 4804 | /* \todo layout_table considers margins etc. again */ | |||
| 4805 | if (!layout_table(box, width, content)) | |||
| 4806 | return false0; | |||
| 4807 | box->float_container = NULL((void*)0); | |||
| 4808 | layout_solve_width(box, box->parent->width, box->width, 0, 0, | |||
| 4809 | -1, -1); | |||
| 4810 | } else if (box->type == BOX_FLEX || box->type == BOX_INLINE_FLEX) { | |||
| 4811 | /* layout_table also expects the containing block to be | |||
| 4812 | * stored in the float_container field */ | |||
| 4813 | box->float_container = containing_block; | |||
| 4814 | if (!layout_flex(box, width, content)) | |||
| 4815 | return false0; | |||
| 4816 | box->float_container = NULL((void*)0); | |||
| 4817 | } | |||
| 4818 | ||||
| 4819 | /* 10.6.4 */ | |||
| 4820 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4824, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", top, margin [TOP], border[TOP].width, padding[TOP], height, padding[BOTTOM ], border[BOTTOM].width, margin[BOTTOM], bottom, containing_block ->height); } } while(0) | |||
| 4821 | "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4824, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", top, margin [TOP], border[TOP].width, padding[TOP], height, padding[BOTTOM ], border[BOTTOM].width, margin[BOTTOM], bottom, containing_block ->height); } } while(0) | |||
| 4822 | top, margin[TOP], border[TOP].width, padding[TOP], height,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4824, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", top, margin [TOP], border[TOP].width, padding[TOP], height, padding[BOTTOM ], border[BOTTOM].width, margin[BOTTOM], bottom, containing_block ->height); } } while(0) | |||
| 4823 | padding[BOTTOM], border[BOTTOM].width, margin[BOTTOM], bottom,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4824, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", top, margin [TOP], border[TOP].width, padding[TOP], height, padding[BOTTOM ], border[BOTTOM].width, margin[BOTTOM], bottom, containing_block ->height); } } while(0) | |||
| 4824 | containing_block->height)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4824, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", top, margin [TOP], border[TOP].width, padding[TOP], height, padding[BOTTOM ], border[BOTTOM].width, margin[BOTTOM], bottom, containing_block ->height); } } while(0); | |||
| 4825 | ||||
| 4826 | if (top == AUTO(-2147483647 -1) && height == AUTO(-2147483647 -1) && bottom == AUTO(-2147483647 -1)) { | |||
| 4827 | top = static_top; | |||
| 4828 | height = box->height; | |||
| 4829 | if (margin[TOP] == AUTO(-2147483647 -1)) | |||
| 4830 | margin[TOP] = 0; | |||
| 4831 | if (margin[BOTTOM] == AUTO(-2147483647 -1)) | |||
| 4832 | margin[BOTTOM] = 0; | |||
| 4833 | bottom = containing_block->height - | |||
| 4834 | top - margin[TOP] - border[TOP].width - | |||
| 4835 | padding[TOP] - height - padding[BOTTOM] - | |||
| 4836 | border[BOTTOM].width - margin[BOTTOM]; | |||
| 4837 | } else if (top != AUTO(-2147483647 -1) && height != AUTO(-2147483647 -1) && bottom != AUTO(-2147483647 -1)) { | |||
| 4838 | if (margin[TOP] == AUTO(-2147483647 -1) && margin[BOTTOM] == AUTO(-2147483647 -1)) { | |||
| 4839 | space = containing_block->height - | |||
| 4840 | top - border[TOP].width - padding[TOP] - | |||
| 4841 | height - padding[BOTTOM] - | |||
| 4842 | border[BOTTOM].width - bottom; | |||
| 4843 | margin[TOP] = margin[BOTTOM] = space / 2; | |||
| 4844 | } else if (margin[TOP] == AUTO(-2147483647 -1)) { | |||
| 4845 | margin[TOP] = containing_block->height - | |||
| 4846 | top - border[TOP].width - padding[TOP] - | |||
| 4847 | height - padding[BOTTOM] - | |||
| 4848 | border[BOTTOM].width - margin[BOTTOM] - | |||
| 4849 | bottom; | |||
| 4850 | } else if (margin[BOTTOM] == AUTO(-2147483647 -1)) { | |||
| 4851 | margin[BOTTOM] = containing_block->height - | |||
| 4852 | top - margin[TOP] - border[TOP].width - | |||
| 4853 | padding[TOP] - height - | |||
| 4854 | padding[BOTTOM] - border[BOTTOM].width - | |||
| 4855 | bottom; | |||
| 4856 | } else { | |||
| 4857 | bottom = containing_block->height - | |||
| 4858 | top - margin[TOP] - border[TOP].width - | |||
| 4859 | padding[TOP] - height - | |||
| 4860 | padding[BOTTOM] - border[BOTTOM].width - | |||
| 4861 | margin[BOTTOM]; | |||
| 4862 | } | |||
| 4863 | } else { | |||
| 4864 | if (margin[TOP] == AUTO(-2147483647 -1)) | |||
| 4865 | margin[TOP] = 0; | |||
| 4866 | if (margin[BOTTOM] == AUTO(-2147483647 -1)) | |||
| 4867 | margin[BOTTOM] = 0; | |||
| 4868 | if (top == AUTO(-2147483647 -1) && height == AUTO(-2147483647 -1) && bottom != AUTO(-2147483647 -1)) { | |||
| 4869 | height = box->height; | |||
| 4870 | top = containing_block->height - | |||
| 4871 | margin[TOP] - border[TOP].width - | |||
| 4872 | padding[TOP] - height - | |||
| 4873 | padding[BOTTOM] - border[BOTTOM].width - | |||
| 4874 | margin[BOTTOM] - bottom; | |||
| 4875 | } else if (top == AUTO(-2147483647 -1) && height != AUTO(-2147483647 -1) && bottom == AUTO(-2147483647 -1)) { | |||
| 4876 | top = static_top; | |||
| 4877 | bottom = containing_block->height - | |||
| 4878 | top - margin[TOP] - border[TOP].width - | |||
| 4879 | padding[TOP] - height - | |||
| 4880 | padding[BOTTOM] - border[BOTTOM].width - | |||
| 4881 | margin[BOTTOM]; | |||
| 4882 | } else if (top != AUTO(-2147483647 -1) && height == AUTO(-2147483647 -1) && bottom == AUTO(-2147483647 -1)) { | |||
| 4883 | height = box->height; | |||
| 4884 | bottom = containing_block->height - | |||
| 4885 | top - margin[TOP] - border[TOP].width - | |||
| 4886 | padding[TOP] - height - | |||
| 4887 | padding[BOTTOM] - border[BOTTOM].width - | |||
| 4888 | margin[BOTTOM]; | |||
| 4889 | } else if (top == AUTO(-2147483647 -1) && height != AUTO(-2147483647 -1) && bottom != AUTO(-2147483647 -1)) { | |||
| 4890 | top = containing_block->height - | |||
| 4891 | margin[TOP] - border[TOP].width - | |||
| 4892 | padding[TOP] - height - | |||
| 4893 | padding[BOTTOM] - border[BOTTOM].width - | |||
| 4894 | margin[BOTTOM] - bottom; | |||
| 4895 | } else if (top != AUTO(-2147483647 -1) && height == AUTO(-2147483647 -1) && bottom != AUTO(-2147483647 -1)) { | |||
| 4896 | height = containing_block->height - | |||
| 4897 | top - margin[TOP] - border[TOP].width - | |||
| 4898 | padding[TOP] - padding[BOTTOM] - | |||
| 4899 | border[BOTTOM].width - margin[BOTTOM] - | |||
| 4900 | bottom; | |||
| 4901 | } else if (top != AUTO(-2147483647 -1) && height != AUTO(-2147483647 -1) && bottom == AUTO(-2147483647 -1)) { | |||
| 4902 | bottom = containing_block->height - | |||
| 4903 | top - margin[TOP] - border[TOP].width - | |||
| 4904 | padding[TOP] - height - | |||
| 4905 | padding[BOTTOM] - border[BOTTOM].width - | |||
| 4906 | margin[BOTTOM]; | |||
| 4907 | } | |||
| 4908 | } | |||
| 4909 | ||||
| 4910 | NSLOG(layout, DEBUG,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4914, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", top, margin [TOP], border[TOP].width, padding[TOP], height, padding[BOTTOM ], border[BOTTOM].width, margin[BOTTOM], bottom, containing_block ->height); } } while(0) | |||
| 4911 | "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4914, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", top, margin [TOP], border[TOP].width, padding[TOP], height, padding[BOTTOM ], border[BOTTOM].width, margin[BOTTOM], bottom, containing_block ->height); } } while(0) | |||
| 4912 | top, margin[TOP], border[TOP].width, padding[TOP], height,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4914, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", top, margin [TOP], border[TOP].width, padding[TOP], height, padding[BOTTOM ], border[BOTTOM].width, margin[BOTTOM], bottom, containing_block ->height); } } while(0) | |||
| 4913 | padding[BOTTOM], border[BOTTOM].width, margin[BOTTOM], bottom,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4914, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", top, margin [TOP], border[TOP].width, padding[TOP], height, padding[BOTTOM ], border[BOTTOM].width, margin[BOTTOM], bottom, containing_block ->height); } } while(0) | |||
| 4914 | containing_block->height)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 4914, }; nslog__log(&_nslog_ctx , "%i + %i + %i + %i + %i + %i + %i + %i + %i = %i", top, margin [TOP], border[TOP].width, padding[TOP], height, padding[BOTTOM ], border[BOTTOM].width, margin[BOTTOM], bottom, containing_block ->height); } } while(0); | |||
| 4915 | ||||
| 4916 | box->y = top + margin[TOP] + border[TOP].width - cy; | |||
| 4917 | if (containing_block->type == BOX_BLOCK || | |||
| 4918 | containing_block->type == BOX_INLINE_BLOCK || | |||
| 4919 | containing_block->type == BOX_TABLE_CELL) { | |||
| 4920 | /* Block-level ancestor => reset container's height */ | |||
| 4921 | containing_block->height -= containing_block->padding[TOP] + | |||
| 4922 | containing_block->padding[BOTTOM]; | |||
| 4923 | } else { | |||
| 4924 | /** \todo Inline ancestors */ | |||
| 4925 | } | |||
| 4926 | box->height = height; | |||
| 4927 | layout_apply_minmax_height(&content->unit_len_ctx, box, containing_block); | |||
| 4928 | ||||
| 4929 | return true1; | |||
| 4930 | } | |||
| 4931 | ||||
| 4932 | ||||
| 4933 | /** | |||
| 4934 | * Recursively layout and position absolutely positioned boxes. | |||
| 4935 | * | |||
| 4936 | * \param box tree of boxes to layout | |||
| 4937 | * \param containing_block current containing block | |||
| 4938 | * \param cx position of box relative to containing_block | |||
| 4939 | * \param cy position of box relative to containing_block | |||
| 4940 | * \param content memory pool for any new boxes | |||
| 4941 | * \return true on success, false on memory exhaustion | |||
| 4942 | */ | |||
| 4943 | static bool_Bool | |||
| 4944 | layout_position_absolute(struct box *box, | |||
| 4945 | struct box *containing_block, | |||
| 4946 | int cx, int cy, | |||
| 4947 | html_content *content) | |||
| 4948 | { | |||
| 4949 | struct box *c; | |||
| 4950 | ||||
| 4951 | for (c = box->children; c; c = c->next) { | |||
| 4952 | if ((c->type == BOX_BLOCK || c->type == BOX_TABLE || | |||
| 4953 | c->type == BOX_INLINE_BLOCK || | |||
| 4954 | c->type == BOX_FLEX || | |||
| 4955 | c->type == BOX_INLINE_FLEX) && | |||
| 4956 | (css_computed_position(c->style) == | |||
| 4957 | CSS_POSITION_ABSOLUTE || | |||
| 4958 | css_computed_position(c->style) == | |||
| 4959 | CSS_POSITION_FIXED)) { | |||
| 4960 | if (!layout_absolute(c, containing_block, | |||
| 4961 | cx, cy, content)) | |||
| 4962 | return false0; | |||
| 4963 | if (!layout_position_absolute(c, c, 0, 0, content)) | |||
| 4964 | return false0; | |||
| 4965 | } else if (c->style && css_computed_position(c->style) == | |||
| 4966 | CSS_POSITION_RELATIVE) { | |||
| 4967 | if (!layout_position_absolute(c, c, 0, 0, content)) | |||
| 4968 | return false0; | |||
| 4969 | } else { | |||
| 4970 | int px, py; | |||
| 4971 | if (c->style && (css_computed_float(c->style) == | |||
| 4972 | CSS_FLOAT_LEFT || | |||
| 4973 | css_computed_float(c->style) == | |||
| 4974 | CSS_FLOAT_RIGHT)) { | |||
| 4975 | /* Float x/y coords are relative to nearest | |||
| 4976 | * ansestor with float_children, rather than | |||
| 4977 | * relative to parent. Need to get x/y relative | |||
| 4978 | * to parent */ | |||
| 4979 | struct box *p; | |||
| 4980 | px = c->x; | |||
| 4981 | py = c->y; | |||
| 4982 | for (p = box->parent; p && !p->float_children; | |||
| 4983 | p = p->parent) { | |||
| 4984 | px -= p->x; | |||
| 4985 | py -= p->y; | |||
| 4986 | } | |||
| 4987 | } else { | |||
| 4988 | /* Not a float, so box x/y coords are relative | |||
| 4989 | * to parent */ | |||
| 4990 | px = c->x; | |||
| 4991 | py = c->y; | |||
| 4992 | } | |||
| 4993 | if (!layout_position_absolute(c, containing_block, | |||
| 4994 | cx + px, cy + py, content)) | |||
| 4995 | return false0; | |||
| 4996 | } | |||
| 4997 | } | |||
| 4998 | ||||
| 4999 | return true1; | |||
| 5000 | } | |||
| 5001 | ||||
| 5002 | ||||
| 5003 | /** | |||
| 5004 | * Compute a box's relative offset as per CSS 2.1 9.4.3 | |||
| 5005 | * | |||
| 5006 | * \param unit_len_ctx Length conversion context | |||
| 5007 | * \param box Box to compute relative offsets for. | |||
| 5008 | * \param x Receives relative offset in x. | |||
| 5009 | * \param y Receives relative offset in y. | |||
| 5010 | */ | |||
| 5011 | static void layout_compute_relative_offset( | |||
| 5012 | const css_unit_ctx *unit_len_ctx, | |||
| 5013 | struct box *box, | |||
| 5014 | int *x, | |||
| 5015 | int *y) | |||
| 5016 | { | |||
| 5017 | int left, right, top, bottom; | |||
| 5018 | struct box *containing_block; | |||
| 5019 | ||||
| 5020 | assert(box && box->parent && box->style &&((box && box->parent && box->style && css_computed_position(box->style) == CSS_POSITION_RELATIVE ) ? (void) (0) : __assert_fail ("box && box->parent && box->style && css_computed_position(box->style) == CSS_POSITION_RELATIVE" , "content/handlers/html/layout.c", 5022, __extension__ __PRETTY_FUNCTION__ )) | |||
| 5021 | css_computed_position(box->style) ==((box && box->parent && box->style && css_computed_position(box->style) == CSS_POSITION_RELATIVE ) ? (void) (0) : __assert_fail ("box && box->parent && box->style && css_computed_position(box->style) == CSS_POSITION_RELATIVE" , "content/handlers/html/layout.c", 5022, __extension__ __PRETTY_FUNCTION__ )) | |||
| 5022 | CSS_POSITION_RELATIVE)((box && box->parent && box->style && css_computed_position(box->style) == CSS_POSITION_RELATIVE ) ? (void) (0) : __assert_fail ("box && box->parent && box->style && css_computed_position(box->style) == CSS_POSITION_RELATIVE" , "content/handlers/html/layout.c", 5022, __extension__ __PRETTY_FUNCTION__ )); | |||
| 5023 | ||||
| 5024 | if (box->float_container && | |||
| 5025 | (css_computed_float(box->style) == CSS_FLOAT_LEFT || | |||
| 5026 | css_computed_float(box->style) == CSS_FLOAT_RIGHT)) { | |||
| 5027 | containing_block = box->float_container; | |||
| 5028 | } else { | |||
| 5029 | containing_block = box->parent; | |||
| 5030 | } | |||
| 5031 | ||||
| 5032 | layout_compute_offsets(unit_len_ctx, box, containing_block, | |||
| 5033 | &top, &right, &bottom, &left); | |||
| 5034 | ||||
| 5035 | if (left == AUTO(-2147483647 -1) && right == AUTO(-2147483647 -1)) | |||
| 5036 | left = right = 0; | |||
| 5037 | else if (left == AUTO(-2147483647 -1)) | |||
| 5038 | /* left is auto => computed = -right */ | |||
| 5039 | left = -right; | |||
| 5040 | else if (right == AUTO(-2147483647 -1)) | |||
| 5041 | /* right is auto => computed = -left */ | |||
| 5042 | right = -left; | |||
| 5043 | else { | |||
| 5044 | /* over constrained => examine direction property | |||
| 5045 | * of containing block */ | |||
| 5046 | if (containing_block->style && | |||
| 5047 | css_computed_direction( | |||
| 5048 | containing_block->style) == | |||
| 5049 | CSS_DIRECTION_RTL) { | |||
| 5050 | /* right wins */ | |||
| 5051 | left = -right; | |||
| 5052 | } else { | |||
| 5053 | /* assume LTR in all other cases */ | |||
| 5054 | right = -left; | |||
| 5055 | } | |||
| 5056 | } | |||
| 5057 | ||||
| 5058 | assert(left == -right)((left == -right) ? (void) (0) : __assert_fail ("left == -right" , "content/handlers/html/layout.c", 5058, __extension__ __PRETTY_FUNCTION__ )); | |||
| 5059 | ||||
| 5060 | if (top == AUTO(-2147483647 -1) && bottom == AUTO(-2147483647 -1)) { | |||
| 5061 | top = bottom = 0; | |||
| 5062 | } else if (top == AUTO(-2147483647 -1)) { | |||
| 5063 | top = -bottom; | |||
| 5064 | } else { | |||
| 5065 | /* bottom is AUTO, or neither are AUTO */ | |||
| 5066 | bottom = -top; | |||
| 5067 | } | |||
| 5068 | ||||
| 5069 | NSLOG(layout, DEBUG, "left %i, right %i, top %i, bottom %i", left,do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 5070, }; nslog__log(&_nslog_ctx , "left %i, right %i, top %i, bottom %i", left, right, top, bottom ); } } while(0) | |||
| 5070 | right, top, bottom)do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 5070, }; nslog__log(&_nslog_ctx , "left %i, right %i, top %i, bottom %i", left, right, top, bottom ); } } while(0); | |||
| 5071 | ||||
| 5072 | *x = left; | |||
| 5073 | *y = top; | |||
| 5074 | } | |||
| 5075 | ||||
| 5076 | ||||
| 5077 | /** | |||
| 5078 | * Adjust positions of relatively positioned boxes. | |||
| 5079 | * | |||
| 5080 | * \param unit_len_ctx Length conversion context | |||
| 5081 | * \param root box to adjust the position of | |||
| 5082 | * \param fp box which forms the block formatting context for children of | |||
| 5083 | * "root" which are floats | |||
| 5084 | * \param fx x offset due to intervening relatively positioned boxes | |||
| 5085 | * between current box, "root", and the block formatting context | |||
| 5086 | * box, "fp", for float children of "root" | |||
| 5087 | * \param fy y offset due to intervening relatively positioned boxes | |||
| 5088 | * between current box, "root", and the block formatting context | |||
| 5089 | * box, "fp", for float children of "root" | |||
| 5090 | */ | |||
| 5091 | static void | |||
| 5092 | layout_position_relative( | |||
| 5093 | const css_unit_ctx *unit_len_ctx, | |||
| 5094 | struct box *root, | |||
| 5095 | struct box *fp, | |||
| 5096 | int fx, | |||
| 5097 | int fy) | |||
| 5098 | { | |||
| 5099 | struct box *box; /* for children of "root" */ | |||
| 5100 | struct box *fn; /* for block formatting context box for children of | |||
| 5101 | * "box" */ | |||
| 5102 | struct box *fc; /* for float children of the block formatting context, | |||
| 5103 | * "fp" */ | |||
| 5104 | int x, y; /* for the offsets resulting from any relative | |||
| 5105 | * positioning on the current block */ | |||
| 5106 | int fnx, fny; /* for affsets which apply to flat children of "box" */ | |||
| 5107 | ||||
| 5108 | /**\todo ensure containing box is large enough after moving boxes */ | |||
| 5109 | ||||
| 5110 | assert(root)((root) ? (void) (0) : __assert_fail ("root", "content/handlers/html/layout.c" , 5110, __extension__ __PRETTY_FUNCTION__)); | |||
| 5111 | ||||
| 5112 | /* Normal children */ | |||
| 5113 | for (box = root->children; box; box = box->next) { | |||
| 5114 | ||||
| 5115 | if (box->type == BOX_TEXT) | |||
| 5116 | continue; | |||
| 5117 | ||||
| 5118 | /* If relatively positioned, get offsets */ | |||
| 5119 | if (box->style && css_computed_position(box->style) == | |||
| 5120 | CSS_POSITION_RELATIVE) | |||
| 5121 | layout_compute_relative_offset( | |||
| 5122 | unit_len_ctx, box, &x, &y); | |||
| 5123 | else | |||
| 5124 | x = y = 0; | |||
| 5125 | ||||
| 5126 | /* Adjust float coordinates. | |||
| 5127 | * (note float x and y are relative to their block formatting | |||
| 5128 | * context box and not their parent) */ | |||
| 5129 | if (box->style && (css_computed_float(box->style) == | |||
| 5130 | CSS_FLOAT_LEFT || | |||
| 5131 | css_computed_float(box->style) == | |||
| 5132 | CSS_FLOAT_RIGHT) && | |||
| 5133 | (fx != 0 || fy != 0)) { | |||
| 5134 | /* box is a float and there is a float offset to | |||
| 5135 | * apply */ | |||
| 5136 | for (fc = fp->float_children; fc; fc = fc->next_float) { | |||
| 5137 | if (box == fc->children) { | |||
| 5138 | /* Box is floated in the block | |||
| 5139 | * formatting context block, fp. | |||
| 5140 | * Apply float offsets. */ | |||
| 5141 | box->x += fx; | |||
| 5142 | box->y += fy; | |||
| 5143 | fx = fy = 0; | |||
| 5144 | } | |||
| 5145 | } | |||
| 5146 | } | |||
| 5147 | ||||
| 5148 | if (box->float_children) { | |||
| 5149 | fn = box; | |||
| 5150 | fnx = fny = 0; | |||
| 5151 | } else { | |||
| 5152 | fn = fp; | |||
| 5153 | fnx = fx + x; | |||
| 5154 | fny = fy + y; | |||
| 5155 | } | |||
| 5156 | ||||
| 5157 | /* recurse first */ | |||
| 5158 | layout_position_relative(unit_len_ctx, box, fn, fnx, fny); | |||
| 5159 | ||||
| 5160 | /* Ignore things we're not interested in. */ | |||
| 5161 | if (!box->style || (box->style && | |||
| 5162 | css_computed_position(box->style) != | |||
| 5163 | CSS_POSITION_RELATIVE)) | |||
| 5164 | continue; | |||
| 5165 | ||||
| 5166 | box->x += x; | |||
| 5167 | box->y += y; | |||
| 5168 | ||||
| 5169 | /* Handle INLINEs - their "children" are in fact | |||
| 5170 | * the sibling boxes between the INLINE and | |||
| 5171 | * INLINE_END boxes */ | |||
| 5172 | if (box->type == BOX_INLINE && box->inline_end) { | |||
| 5173 | struct box *b; | |||
| 5174 | for (b = box->next; b && b != box->inline_end; | |||
| 5175 | b = b->next) { | |||
| 5176 | b->x += x; | |||
| 5177 | b->y += y; | |||
| 5178 | } | |||
| 5179 | } | |||
| 5180 | } | |||
| 5181 | } | |||
| 5182 | ||||
| 5183 | ||||
| 5184 | /** | |||
| 5185 | * Find a box's bounding box relative to itself, i.e. the box's border edge box | |||
| 5186 | * | |||
| 5187 | * \param unit_len_ctx Length conversion context | |||
| 5188 | * \param box box find bounding box of | |||
| 5189 | * \param desc_x0 updated to left of box's bbox | |||
| 5190 | * \param desc_y0 updated to top of box's bbox | |||
| 5191 | * \param desc_x1 updated to right of box's bbox | |||
| 5192 | * \param desc_y1 updated to bottom of box's bbox | |||
| 5193 | */ | |||
| 5194 | static void | |||
| 5195 | layout_get_box_bbox( | |||
| 5196 | const css_unit_ctx *unit_len_ctx, | |||
| 5197 | struct box *box, | |||
| 5198 | int *desc_x0, int *desc_y0, | |||
| 5199 | int *desc_x1, int *desc_y1) | |||
| 5200 | { | |||
| 5201 | *desc_x0 = -box->border[LEFT].width; | |||
| 5202 | *desc_y0 = -box->border[TOP].width; | |||
| 5203 | *desc_x1 = box->padding[LEFT] + box->width + box->padding[RIGHT] + | |||
| 5204 | box->border[RIGHT].width; | |||
| 5205 | *desc_y1 = box->padding[TOP] + box->height + box->padding[BOTTOM] + | |||
| 5206 | box->border[BOTTOM].width; | |||
| 5207 | ||||
| 5208 | /* To stop the top of text getting clipped when css line-height is | |||
| 5209 | * reduced, we increase the top of the descendant bbox. */ | |||
| 5210 | if (box->type == BOX_BLOCK && box->style != NULL((void*)0) && | |||
| 5211 | css_computed_overflow_y(box->style) == | |||
| 5212 | CSS_OVERFLOW_VISIBLE && | |||
| 5213 | box->object == NULL((void*)0)) { | |||
| 5214 | css_fixed font_size = 0; | |||
| 5215 | css_unit font_unit = CSS_UNIT_PT; | |||
| 5216 | int text_height; | |||
| 5217 | ||||
| 5218 | css_computed_font_size(box->style, &font_size, &font_unit); | |||
| 5219 | text_height = css_unit_len2device_px(box->style, unit_len_ctx, | |||
| 5220 | font_size, font_unit); | |||
| 5221 | text_height = FIXTOINT(text_height * 3 / 4)((text_height * 3 / 4) >> 10); | |||
| 5222 | *desc_y0 = (*desc_y0 < -text_height) ? *desc_y0 : -text_height; | |||
| 5223 | } | |||
| 5224 | } | |||
| 5225 | ||||
| 5226 | ||||
| 5227 | /** | |||
| 5228 | * Apply changes to box descendant_[xy][01] values due to given child. | |||
| 5229 | * | |||
| 5230 | * \param unit_len_ctx Length conversion context | |||
| 5231 | * \param box box to update | |||
| 5232 | * \param child a box, which may affect box's descendant bbox | |||
| 5233 | * \param off_x offset to apply to child->x coord to treat as child of box | |||
| 5234 | * \param off_y offset to apply to child->y coord to treat as child of box | |||
| 5235 | */ | |||
| 5236 | static void | |||
| 5237 | layout_update_descendant_bbox( | |||
| 5238 | const css_unit_ctx *unit_len_ctx, | |||
| 5239 | struct box *box, | |||
| 5240 | struct box *child, | |||
| 5241 | int off_x, | |||
| 5242 | int off_y) | |||
| 5243 | { | |||
| 5244 | int child_desc_x0, child_desc_y0, child_desc_x1, child_desc_y1; | |||
| 5245 | ||||
| 5246 | /* get coordinates of child relative to box */ | |||
| 5247 | int child_x = child->x - off_x; | |||
| 5248 | int child_y = child->y - off_y; | |||
| 5249 | ||||
| 5250 | bool_Bool html_object = (child->object && | |||
| 5251 | content_get_type(child->object) == CONTENT_HTML); | |||
| 5252 | ||||
| 5253 | enum css_overflow_e overflow_x = CSS_OVERFLOW_VISIBLE; | |||
| 5254 | enum css_overflow_e overflow_y = CSS_OVERFLOW_VISIBLE; | |||
| 5255 | ||||
| 5256 | if (child->style != NULL((void*)0)) { | |||
| 5257 | overflow_x = css_computed_overflow_x(child->style); | |||
| 5258 | overflow_y = css_computed_overflow_y(child->style); | |||
| 5259 | } | |||
| 5260 | ||||
| 5261 | /* Get child's border edge */ | |||
| 5262 | layout_get_box_bbox(unit_len_ctx, child, | |||
| 5263 | &child_desc_x0, &child_desc_y0, | |||
| 5264 | &child_desc_x1, &child_desc_y1); | |||
| 5265 | ||||
| 5266 | if (overflow_x == CSS_OVERFLOW_VISIBLE && | |||
| 5267 | html_object == false0) { | |||
| 5268 | /* get child's descendant bbox relative to box */ | |||
| 5269 | child_desc_x0 = child->descendant_x0; | |||
| 5270 | child_desc_x1 = child->descendant_x1; | |||
| 5271 | } | |||
| 5272 | if (overflow_y == CSS_OVERFLOW_VISIBLE && | |||
| 5273 | html_object == false0) { | |||
| 5274 | /* get child's descendant bbox relative to box */ | |||
| 5275 | child_desc_y0 = child->descendant_y0; | |||
| 5276 | child_desc_y1 = child->descendant_y1; | |||
| 5277 | } | |||
| 5278 | ||||
| 5279 | child_desc_x0 += child_x; | |||
| 5280 | child_desc_y0 += child_y; | |||
| 5281 | child_desc_x1 += child_x; | |||
| 5282 | child_desc_y1 += child_y; | |||
| 5283 | ||||
| 5284 | /* increase box's descendant bbox to contain descendants */ | |||
| 5285 | if (child_desc_x0 < box->descendant_x0) | |||
| 5286 | box->descendant_x0 = child_desc_x0; | |||
| 5287 | if (child_desc_y0 < box->descendant_y0) | |||
| 5288 | box->descendant_y0 = child_desc_y0; | |||
| 5289 | if (box->descendant_x1 < child_desc_x1) | |||
| 5290 | box->descendant_x1 = child_desc_x1; | |||
| 5291 | if (box->descendant_y1 < child_desc_y1) | |||
| 5292 | box->descendant_y1 = child_desc_y1; | |||
| 5293 | } | |||
| 5294 | ||||
| 5295 | ||||
| 5296 | /** | |||
| 5297 | * Recursively calculate the descendant_[xy][01] values for a laid-out box tree | |||
| 5298 | * and inform iframe browser windows of their size and position. | |||
| 5299 | * | |||
| 5300 | * \param unit_len_ctx Length conversion context | |||
| 5301 | * \param box tree of boxes to update | |||
| 5302 | */ | |||
| 5303 | static void layout_calculate_descendant_bboxes( | |||
| 5304 | const css_unit_ctx *unit_len_ctx, | |||
| 5305 | struct box *box) | |||
| 5306 | { | |||
| 5307 | struct box *child; | |||
| 5308 | ||||
| 5309 | assert(box->width != UNKNOWN_WIDTH)((box->width != 2147483647) ? (void) (0) : __assert_fail ( "box->width != UNKNOWN_WIDTH", "content/handlers/html/layout.c" , 5309, __extension__ __PRETTY_FUNCTION__)); | |||
| 5310 | assert(box->height != AUTO)((box->height != (-2147483647 -1)) ? (void) (0) : __assert_fail ("box->height != AUTO", "content/handlers/html/layout.c", 5310, __extension__ __PRETTY_FUNCTION__)); | |||
| 5311 | /* assert((box->width >= 0) && (box->height >= 0)); */ | |||
| 5312 | ||||
| 5313 | /* Initialise box's descendant box to border edge box */ | |||
| 5314 | layout_get_box_bbox(unit_len_ctx, box, | |||
| 5315 | &box->descendant_x0, &box->descendant_y0, | |||
| 5316 | &box->descendant_x1, &box->descendant_y1); | |||
| 5317 | ||||
| 5318 | /* Extend it to contain HTML contents if box is replaced */ | |||
| 5319 | if (box->object && content_get_type(box->object) == CONTENT_HTML) { | |||
| 5320 | if (box->descendant_x1 < content_get_width(box->object)) | |||
| 5321 | box->descendant_x1 = content_get_width(box->object); | |||
| 5322 | if (box->descendant_y1 < content_get_height(box->object)) | |||
| 5323 | box->descendant_y1 = content_get_height(box->object); | |||
| 5324 | } | |||
| 5325 | ||||
| 5326 | if (box->iframe != NULL((void*)0)) { | |||
| 5327 | int x, y; | |||
| 5328 | box_coords(box, &x, &y); | |||
| 5329 | ||||
| 5330 | browser_window_set_position(box->iframe, x, y); | |||
| 5331 | browser_window_set_dimensions(box->iframe, | |||
| 5332 | box->width, box->height); | |||
| 5333 | browser_window_reformat(box->iframe, true1, | |||
| 5334 | box->width, box->height); | |||
| 5335 | } | |||
| 5336 | ||||
| 5337 | if (box->type == BOX_INLINE || box->type == BOX_TEXT) | |||
| 5338 | return; | |||
| 5339 | ||||
| 5340 | if (box->type == BOX_INLINE_END) { | |||
| 5341 | box = box->inline_end; | |||
| 5342 | for (child = box->next; child; | |||
| 5343 | child = child->next) { | |||
| 5344 | if (child->type == BOX_FLOAT_LEFT || | |||
| 5345 | child->type == BOX_FLOAT_RIGHT) | |||
| 5346 | continue; | |||
| 5347 | ||||
| 5348 | layout_update_descendant_bbox(unit_len_ctx, box, child, | |||
| 5349 | box->x, box->y); | |||
| 5350 | ||||
| 5351 | if (child == box->inline_end) | |||
| 5352 | break; | |||
| 5353 | } | |||
| 5354 | return; | |||
| 5355 | } | |||
| 5356 | ||||
| 5357 | if (box->flags & REPLACE_DIM) | |||
| 5358 | /* Box's children aren't displayed if the box is replaced */ | |||
| 5359 | return; | |||
| 5360 | ||||
| 5361 | for (child = box->children; child; child = child->next) { | |||
| 5362 | if (child->type == BOX_FLOAT_LEFT || | |||
| 5363 | child->type == BOX_FLOAT_RIGHT) | |||
| 5364 | continue; | |||
| 5365 | ||||
| 5366 | layout_calculate_descendant_bboxes(unit_len_ctx, child); | |||
| 5367 | ||||
| 5368 | if (box->style && css_computed_overflow_x(box->style) == | |||
| 5369 | CSS_OVERFLOW_HIDDEN && | |||
| 5370 | css_computed_overflow_y(box->style) == | |||
| 5371 | CSS_OVERFLOW_HIDDEN) | |||
| 5372 | continue; | |||
| 5373 | ||||
| 5374 | layout_update_descendant_bbox(unit_len_ctx, box, child, 0, 0); | |||
| 5375 | } | |||
| 5376 | ||||
| 5377 | for (child = box->float_children; child; child = child->next_float) { | |||
| 5378 | assert(child->type == BOX_FLOAT_LEFT ||((child->type == BOX_FLOAT_LEFT || child->type == BOX_FLOAT_RIGHT ) ? (void) (0) : __assert_fail ("child->type == BOX_FLOAT_LEFT || child->type == BOX_FLOAT_RIGHT" , "content/handlers/html/layout.c", 5379, __extension__ __PRETTY_FUNCTION__ )) | |||
| 5379 | child->type == BOX_FLOAT_RIGHT)((child->type == BOX_FLOAT_LEFT || child->type == BOX_FLOAT_RIGHT ) ? (void) (0) : __assert_fail ("child->type == BOX_FLOAT_LEFT || child->type == BOX_FLOAT_RIGHT" , "content/handlers/html/layout.c", 5379, __extension__ __PRETTY_FUNCTION__ )); | |||
| 5380 | ||||
| 5381 | layout_calculate_descendant_bboxes(unit_len_ctx, child); | |||
| 5382 | ||||
| 5383 | layout_update_descendant_bbox(unit_len_ctx, box, child, 0, 0); | |||
| 5384 | } | |||
| 5385 | ||||
| 5386 | if (box->list_marker) { | |||
| 5387 | child = box->list_marker; | |||
| 5388 | layout_calculate_descendant_bboxes(unit_len_ctx, child); | |||
| 5389 | ||||
| 5390 | layout_update_descendant_bbox(unit_len_ctx, box, child, 0, 0); | |||
| 5391 | } | |||
| 5392 | } | |||
| 5393 | ||||
| 5394 | ||||
| 5395 | /* exported function documented in html/layout.h */ | |||
| 5396 | bool_Bool layout_document(html_content *content, int width, int height) | |||
| 5397 | { | |||
| 5398 | bool_Bool ret; | |||
| 5399 | struct box *doc = content->layout; | |||
| 5400 | const struct gui_layout_table *font_func = content->font_func; | |||
| 5401 | ||||
| 5402 | NSLOG(layout, DEBUG, "Doing layout to %ix%i of %s",do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 5404, }; nslog__log(&_nslog_ctx , "Doing layout to %ix%i of %s", width, height, nsurl_access( content_get_url( &content->base))); } } while(0) | |||
| 5403 | width, height, nsurl_access(content_get_url(do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 5404, }; nslog__log(&_nslog_ctx , "Doing layout to %ix%i of %s", width, height, nsurl_access( content_get_url( &content->base))); } } while(0) | |||
| 5404 | &content->base)))do { if (NSLOG_LEVEL_DEBUG >= NSLOG_LEVEL_VERBOSE) { static nslog_entry_context_t _nslog_ctx = { &__nslog_category_layout , NSLOG_LEVEL_DEBUG, "content/handlers/html/layout.c", sizeof ("content/handlers/html/layout.c") - 1, __PRETTY_FUNCTION__, sizeof (__PRETTY_FUNCTION__) - 1, 5404, }; nslog__log(&_nslog_ctx , "Doing layout to %ix%i of %s", width, height, nsurl_access( content_get_url( &content->base))); } } while(0); | |||
| 5405 | ||||
| 5406 | layout_minmax_block(doc, font_func, content); | |||
| 5407 | ||||
| 5408 | layout_block_find_dimensions(&content->unit_len_ctx, | |||
| 5409 | width, height, 0, 0, doc); | |||
| 5410 | doc->x = doc->margin[LEFT] + doc->border[LEFT].width; | |||
| 5411 | doc->y = doc->margin[TOP] + doc->border[TOP].width; | |||
| 5412 | width -= doc->margin[LEFT] + doc->border[LEFT].width + | |||
| 5413 | doc->padding[LEFT] + doc->padding[RIGHT] + | |||
| 5414 | doc->border[RIGHT].width + doc->margin[RIGHT]; | |||
| 5415 | if (width < 0) { | |||
| 5416 | width = 0; | |||
| 5417 | } | |||
| 5418 | doc->width = width; | |||
| 5419 | ||||
| 5420 | ret = layout_block_context(doc, height, content); | |||
| 5421 | ||||
| 5422 | /* make <html> and <body> fill available height */ | |||
| 5423 | if (doc->y + doc->padding[TOP] + doc->height + doc->padding[BOTTOM] + | |||
| 5424 | doc->border[BOTTOM].width + doc->margin[BOTTOM] < | |||
| 5425 | height) { | |||
| 5426 | doc->height = height - (doc->y + doc->padding[TOP] + | |||
| 5427 | doc->padding[BOTTOM] + | |||
| 5428 | doc->border[BOTTOM].width + | |||
| 5429 | doc->margin[BOTTOM]); | |||
| 5430 | if (doc->children) | |||
| 5431 | doc->children->height = doc->height - | |||
| 5432 | (doc->children->margin[TOP] + | |||
| 5433 | doc->children->border[TOP].width + | |||
| 5434 | doc->children->padding[TOP] + | |||
| 5435 | doc->children->padding[BOTTOM] + | |||
| 5436 | doc->children->border[BOTTOM].width + | |||
| 5437 | doc->children->margin[BOTTOM]); | |||
| 5438 | } | |||
| 5439 | ||||
| 5440 | layout_lists(content, doc); | |||
| 5441 | layout_position_absolute(doc, doc, 0, 0, content); | |||
| 5442 | layout_position_relative(&content->unit_len_ctx, doc, doc, 0, 0); | |||
| 5443 | ||||
| 5444 | layout_calculate_descendant_bboxes(&content->unit_len_ctx, doc); | |||
| 5445 | ||||
| 5446 | return ret; | |||
| 5447 | } |