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 | } |