File: | content/handlers/html/layout.c |
Warning: | line 358, 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 border_spacing_h = 0; | |||
263 | int table_min = 0, table_max = 0; | |||
264 | int extra_fixed = 0; | |||
265 | float extra_frac = 0; | |||
266 | struct column *col; | |||
267 | struct box *row_group, *row, *cell; | |||
268 | enum css_width_e wtype; | |||
269 | css_fixed value = 0; | |||
270 | css_unit unit = CSS_UNIT_PX; | |||
271 | ||||
272 | /* check if the widths have already been calculated */ | |||
273 | if (table->max_width != UNKNOWN_MAX_WIDTH2147483647) | |||
| ||||
274 | return; | |||
275 | ||||
276 | if (table_calculate_column_types(&content->unit_len_ctx, table) == false0) { | |||
277 | 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, 278, }; nslog__log(&_nslog_ctx , "Could not establish table column types."); } } while(0) | |||
278 | "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, 278, }; nslog__log(&_nslog_ctx , "Could not establish table column types."); } } while(0); | |||
279 | return; | |||
280 | } | |||
281 | col = table->col; | |||
282 | ||||
283 | /* start with 0 except for fixed-width columns */ | |||
284 | for (i = 0; i != table->columns; i++) { | |||
285 | if (col[i].type == COLUMN_WIDTH_FIXED) | |||
286 | col[i].min = col[i].max = col[i].width; | |||
287 | else | |||
288 | col[i].min = col[i].max = 0; | |||
289 | } | |||
290 | ||||
291 | /* border-spacing is used in the separated borders model */ | |||
292 | if (css_computed_border_collapse(table->style) == | |||
293 | CSS_BORDER_COLLAPSE_SEPARATE) { | |||
294 | css_fixed h = 0, v = 0; | |||
295 | css_unit hu = CSS_UNIT_PX, vu = CSS_UNIT_PX; | |||
296 | ||||
297 | css_computed_border_spacing(table->style, &h, &hu, &v, &vu); | |||
298 | ||||
299 | border_spacing_h = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( table->style, &content->unit_len_ctx , h, hu)) >> 10) | |||
300 | table->style,((css_unit_len2device_px( table->style, &content->unit_len_ctx , h, hu)) >> 10) | |||
301 | &content->unit_len_ctx,((css_unit_len2device_px( table->style, &content->unit_len_ctx , h, hu)) >> 10) | |||
302 | h, hu))((css_unit_len2device_px( table->style, &content->unit_len_ctx , h, hu)) >> 10); | |||
303 | } | |||
304 | ||||
305 | /* 1st pass: consider cells with colspan 1 only */ | |||
306 | for (row_group = table->children; row_group; row_group =row_group->next) | |||
307 | for (row = row_group->children; row; row = row->next) | |||
308 | for (cell = row->children; cell; cell = cell->next) { | |||
309 | 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" , 309, __extension__ __PRETTY_FUNCTION__)); | |||
310 | assert(cell->style)((cell->style) ? (void) (0) : __assert_fail ("cell->style" , "content/handlers/html/layout.c", 310, __extension__ __PRETTY_FUNCTION__ )); | |||
311 | /** TODO: Handle colspan="0" correctly. | |||
312 | * It's currently converted to 1 in box normaisation */ | |||
313 | assert(cell->columns != 0)((cell->columns != 0) ? (void) (0) : __assert_fail ("cell->columns != 0" , "content/handlers/html/layout.c", 313, __extension__ __PRETTY_FUNCTION__ )); | |||
314 | ||||
315 | if (cell->columns != 1) | |||
316 | continue; | |||
317 | ||||
318 | layout_minmax_block(cell, font_func, content); | |||
319 | i = cell->start_column; | |||
320 | ||||
321 | if (col[i].positioned) | |||
322 | continue; | |||
323 | ||||
324 | /* update column min, max widths using cell widths */ | |||
325 | if (col[i].min < cell->min_width) | |||
326 | col[i].min = cell->min_width; | |||
327 | if (col[i].max < cell->max_width) | |||
328 | col[i].max = cell->max_width; | |||
329 | } | |||
330 | ||||
331 | /* 2nd pass: cells which span multiple columns */ | |||
332 | for (row_group = table->children; row_group; row_group =row_group->next) | |||
333 | for (row = row_group->children; row; row = row->next) | |||
334 | for (cell = row->children; cell; cell = cell->next) { | |||
335 | unsigned int flexible_columns = 0; | |||
336 | int min = 0, max = 0, fixed_width = 0, extra; | |||
337 | ||||
338 | if (cell->columns
| |||
339 | continue; | |||
340 | ||||
341 | layout_minmax_block(cell, font_func, content); | |||
342 | i = cell->start_column; | |||
343 | ||||
344 | /* find min width so far of spanned columns, and count | |||
345 | * number of non-fixed spanned columns and total fixed width */ | |||
346 | for (j = 0; j != cell->columns; j++) { | |||
347 | min += col[i + j].min; | |||
348 | if (col[i + j].type == COLUMN_WIDTH_FIXED) | |||
349 | fixed_width += col[i + j].width; | |||
350 | else | |||
351 | flexible_columns++; | |||
352 | } | |||
353 | min += (cell->columns - 1) * border_spacing_h; | |||
354 | ||||
355 | /* distribute extra min to spanned columns */ | |||
356 | if (min < cell->min_width) { | |||
357 | if (flexible_columns
| |||
358 | extra = 1 + (cell->min_width - min) / | |||
| ||||
359 | cell->columns; | |||
360 | for (j = 0; j != cell->columns; j++) { | |||
361 | col[i + j].min += extra; | |||
362 | if (col[i + j].max < col[i + j].min) | |||
363 | col[i + j].max = col[i + j].min; | |||
364 | } | |||
365 | } else { | |||
366 | extra = 1 + (cell->min_width - min) / | |||
367 | flexible_columns; | |||
368 | for (j = 0; j != cell->columns; j++) { | |||
369 | if (col[i + j].type != | |||
370 | COLUMN_WIDTH_FIXED) { | |||
371 | col[i + j].min += extra; | |||
372 | if (col[i + j].max < | |||
373 | col[i + j].min) | |||
374 | col[i + j].max = | |||
375 | col[i + j].min; | |||
376 | } | |||
377 | } | |||
378 | } | |||
379 | } | |||
380 | ||||
381 | /* find max width so far of spanned columns */ | |||
382 | for (j = 0; j != cell->columns; j++) | |||
383 | max += col[i + j].max; | |||
384 | max += (cell->columns - 1) * border_spacing_h; | |||
385 | ||||
386 | /* distribute extra max to spanned columns */ | |||
387 | if (max < cell->max_width && flexible_columns) { | |||
388 | extra = 1 + (cell->max_width - max) / flexible_columns; | |||
389 | for (j = 0; j != cell->columns; j++) | |||
390 | if (col[i + j].type != COLUMN_WIDTH_FIXED) | |||
391 | col[i + j].max += extra; | |||
392 | } | |||
393 | } | |||
394 | ||||
395 | for (i = 0; i != table->columns; i++) { | |||
396 | if (col[i].max < col[i].min) { | |||
397 | box_dump(stderrstderr, table, 0, true1); | |||
398 | assert(0)((0) ? (void) (0) : __assert_fail ("0", "content/handlers/html/layout.c" , 398, __extension__ __PRETTY_FUNCTION__)); | |||
399 | } | |||
400 | table_min += col[i].min; | |||
401 | table_max += col[i].max; | |||
402 | } | |||
403 | ||||
404 | /* fixed width takes priority, unless it is too narrow */ | |||
405 | wtype = css_computed_width(table->style, &value, &unit); | |||
406 | if (wtype == CSS_WIDTH_SET && unit != CSS_UNIT_PCT) { | |||
407 | int width = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( table->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
408 | table->style,((css_unit_len2device_px( table->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
409 | &content->unit_len_ctx,((css_unit_len2device_px( table->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
410 | value, unit))((css_unit_len2device_px( table->style, &content->unit_len_ctx , value, unit)) >> 10); | |||
411 | if (table_min < width) | |||
412 | table_min = width; | |||
413 | if (table_max < width) | |||
414 | table_max = width; | |||
415 | } | |||
416 | ||||
417 | /* add margins, border, padding to min, max widths */ | |||
418 | calculate_mbp_width(&content->unit_len_ctx, | |||
419 | table->style, LEFT, true1, true1, true1, | |||
420 | &extra_fixed, &extra_frac); | |||
421 | calculate_mbp_width(&content->unit_len_ctx, | |||
422 | table->style, RIGHT, true1, true1, true1, | |||
423 | &extra_fixed, &extra_frac); | |||
424 | if (extra_fixed < 0) | |||
425 | extra_fixed = 0; | |||
426 | if (extra_frac < 0) | |||
427 | extra_frac = 0; | |||
428 | if (1.0 <= extra_frac) | |||
429 | extra_frac = 0.9; | |||
430 | table->min_width = (table_min + extra_fixed) / (1.0 - extra_frac); | |||
431 | table->max_width = (table_max + extra_fixed) / (1.0 - extra_frac); | |||
432 | table->min_width += (table->columns + 1) * border_spacing_h; | |||
433 | table->max_width += (table->columns + 1) * border_spacing_h; | |||
434 | ||||
435 | 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", 435, __extension__ __PRETTY_FUNCTION__ )); | |||
436 | } | |||
437 | ||||
438 | /** | |||
439 | * Helper to check if a box has percentage max width. | |||
440 | * | |||
441 | * \param[in] b Box to check. | |||
442 | * \return true iff box has percnetage max width. | |||
443 | */ | |||
444 | static inline bool_Bool box_has_percentage_max_width(struct box *b) | |||
445 | { | |||
446 | css_unit unit = CSS_UNIT_PX; | |||
447 | enum css_max_width_e type; | |||
448 | css_fixed value = 0; | |||
449 | ||||
450 | assert(b != NULL)((b != ((void*)0)) ? (void) (0) : __assert_fail ("b != NULL", "content/handlers/html/layout.c", 450, __extension__ __PRETTY_FUNCTION__ )); | |||
451 | ||||
452 | type = css_computed_max_width(b->style, &value, &unit); | |||
453 | return ((type == CSS_MAX_WIDTH_SET) && (unit == CSS_UNIT_PCT)); | |||
454 | } | |||
455 | ||||
456 | /** | |||
457 | * Calculate minimum and maximum width of a line. | |||
458 | * | |||
459 | * \param first a box in an inline container | |||
460 | * \param line_min updated to minimum width of line starting at first | |||
461 | * \param line_max updated to maximum width of line starting at first | |||
462 | * \param first_line true iff this is the first line in the inline container | |||
463 | * \param line_has_height updated to true or false, depending on line | |||
464 | * \param font_func Font functions. | |||
465 | * \return first box in next line, or 0 if no more lines | |||
466 | * \post 0 <= *line_min <= *line_max | |||
467 | */ | |||
468 | static struct box * | |||
469 | layout_minmax_line(struct box *first, | |||
470 | int *line_min, | |||
471 | int *line_max, | |||
472 | bool_Bool first_line, | |||
473 | bool_Bool *line_has_height, | |||
474 | const struct gui_layout_table *font_func, | |||
475 | const html_content *content) | |||
476 | { | |||
477 | int min = 0, max = 0, width, height, fixed; | |||
478 | float frac; | |||
479 | size_t i, j; | |||
480 | struct box *b; | |||
481 | struct box *block; | |||
482 | plot_font_style_t fstyle; | |||
483 | bool_Bool no_wrap; | |||
484 | ||||
485 | assert(first->parent)((first->parent) ? (void) (0) : __assert_fail ("first->parent" , "content/handlers/html/layout.c", 485, __extension__ __PRETTY_FUNCTION__ )); | |||
486 | assert(first->parent->parent)((first->parent->parent) ? (void) (0) : __assert_fail ( "first->parent->parent", "content/handlers/html/layout.c" , 486, __extension__ __PRETTY_FUNCTION__)); | |||
487 | assert(first->parent->parent->style)((first->parent->parent->style) ? (void) (0) : __assert_fail ("first->parent->parent->style", "content/handlers/html/layout.c" , 487, __extension__ __PRETTY_FUNCTION__)); | |||
488 | ||||
489 | block = first->parent->parent; | |||
490 | no_wrap = (css_computed_white_space(block->style) == | |||
491 | CSS_WHITE_SPACE_NOWRAP || | |||
492 | css_computed_white_space(block->style) == | |||
493 | CSS_WHITE_SPACE_PRE); | |||
494 | ||||
495 | *line_has_height = false0; | |||
496 | ||||
497 | /* corresponds to the pass 1 loop in layout_line() */ | |||
498 | for (b = first; b; b = b->next) { | |||
499 | enum css_width_e wtype; | |||
500 | enum css_height_e htype; | |||
501 | enum css_box_sizing_e bs; | |||
502 | css_fixed value = 0; | |||
503 | css_unit unit = CSS_UNIT_PX; | |||
504 | ||||
505 | 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" , 505, __extension__ __PRETTY_FUNCTION__)); | |||
506 | ||||
507 | 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, 507, }; nslog__log(&_nslog_ctx , "%p: min %i, max %i", b, min, max); } } while(0); | |||
508 | ||||
509 | if (b->type == BOX_BR) { | |||
510 | b = b->next; | |||
511 | break; | |||
512 | } | |||
513 | ||||
514 | if (lh__box_is_float_box(b)) { | |||
515 | assert(b->children)((b->children) ? (void) (0) : __assert_fail ("b->children" , "content/handlers/html/layout.c", 515, __extension__ __PRETTY_FUNCTION__ )); | |||
516 | if (b->children->type == BOX_TABLE) | |||
517 | layout_minmax_table(b->children, font_func, | |||
518 | content); | |||
519 | else | |||
520 | layout_minmax_block(b->children, font_func, | |||
521 | content); | |||
522 | b->min_width = b->children->min_width; | |||
523 | b->max_width = b->children->max_width; | |||
524 | if (min < b->min_width) | |||
525 | min = b->min_width; | |||
526 | max += b->max_width; | |||
527 | continue; | |||
528 | } | |||
529 | ||||
530 | if (b->type == BOX_INLINE_BLOCK || b->type == BOX_INLINE_FLEX) { | |||
531 | layout_minmax_block(b, font_func, content); | |||
532 | if (min < b->min_width) | |||
533 | min = b->min_width; | |||
534 | max += b->max_width; | |||
535 | ||||
536 | if (b->flags & HAS_HEIGHT) | |||
537 | *line_has_height = true1; | |||
538 | continue; | |||
539 | } | |||
540 | ||||
541 | assert(b->style)((b->style) ? (void) (0) : __assert_fail ("b->style", "content/handlers/html/layout.c" , 541, __extension__ __PRETTY_FUNCTION__)); | |||
542 | font_plot_style_from_css(&content->unit_len_ctx, b->style, &fstyle); | |||
543 | ||||
544 | if (b->type == BOX_INLINE && !b->object && | |||
545 | !(b->flags & REPLACE_DIM) && | |||
546 | !(b->flags & IFRAME)) { | |||
547 | fixed = frac = 0; | |||
548 | calculate_mbp_width(&content->unit_len_ctx, | |||
549 | b->style, LEFT, true1, true1, true1, | |||
550 | &fixed, &frac); | |||
551 | if (!b->inline_end) | |||
552 | calculate_mbp_width(&content->unit_len_ctx, | |||
553 | b->style, RIGHT, | |||
554 | true1, true1, true1, | |||
555 | &fixed, &frac); | |||
556 | if (0 < fixed) | |||
557 | max += fixed; | |||
558 | *line_has_height = true1; | |||
559 | /* \todo update min width, consider fractional extra */ | |||
560 | } else if (b->type == BOX_INLINE_END) { | |||
561 | fixed = frac = 0; | |||
562 | calculate_mbp_width(&content->unit_len_ctx, | |||
563 | b->inline_end->style, RIGHT, | |||
564 | true1, true1, true1, | |||
565 | &fixed, &frac); | |||
566 | if (0 < fixed) | |||
567 | max += fixed; | |||
568 | ||||
569 | if (b->next) { | |||
570 | if (b->space == UNKNOWN_WIDTH2147483647) { | |||
571 | font_func->width(&fstyle, " ", 1, | |||
572 | &b->space); | |||
573 | } | |||
574 | max += b->space; | |||
575 | } | |||
576 | ||||
577 | *line_has_height = true1; | |||
578 | continue; | |||
579 | } | |||
580 | ||||
581 | if (lh__box_is_replace(b) == false0) { | |||
582 | /* inline non-replaced, 10.3.1 and 10.6.1 */ | |||
583 | bool_Bool no_wrap_box; | |||
584 | if (!b->text) | |||
585 | continue; | |||
586 | ||||
587 | no_wrap_box = (css_computed_white_space(b->style) == | |||
588 | CSS_WHITE_SPACE_NOWRAP || | |||
589 | css_computed_white_space(b->style) == | |||
590 | CSS_WHITE_SPACE_PRE); | |||
591 | ||||
592 | if (b->width == UNKNOWN_WIDTH2147483647) { | |||
593 | /** \todo handle errors */ | |||
594 | ||||
595 | /* If it's a select element, we must use the | |||
596 | * width of the widest option text */ | |||
597 | if (b->parent->parent->gadget && | |||
598 | b->parent->parent->gadget->type | |||
599 | == GADGET_SELECT) { | |||
600 | int opt_maxwidth = 0; | |||
601 | struct form_option *o; | |||
602 | ||||
603 | for (o = b->parent->parent->gadget-> | |||
604 | data.select.items; o; | |||
605 | o = o->next) { | |||
606 | int opt_width; | |||
607 | font_func->width(&fstyle, | |||
608 | o->text, | |||
609 | strlen(o->text), | |||
610 | &opt_width); | |||
611 | ||||
612 | if (opt_maxwidth < opt_width) | |||
613 | opt_maxwidth =opt_width; | |||
614 | } | |||
615 | ||||
616 | b->width = opt_maxwidth; | |||
617 | if (nsoption_bool(core_select_menu)(nsoptions[NSOPTION_core_select_menu].value.b)) | |||
618 | b->width += SCROLLBAR_WIDTH16; | |||
619 | ||||
620 | } else { | |||
621 | font_func->width(&fstyle, b->text, | |||
622 | b->length, &b->width); | |||
623 | b->flags |= MEASURED; | |||
624 | } | |||
625 | } | |||
626 | max += b->width; | |||
627 | if (b->next) { | |||
628 | if (b->space == UNKNOWN_WIDTH2147483647) { | |||
629 | font_func->width(&fstyle, " ", 1, | |||
630 | &b->space); | |||
631 | } | |||
632 | max += b->space; | |||
633 | } | |||
634 | ||||
635 | if (no_wrap) { | |||
636 | /* Don't wrap due to block style, | |||
637 | * so min is the same as max */ | |||
638 | min = max; | |||
639 | ||||
640 | } else if (no_wrap_box) { | |||
641 | /* This inline box can't be wrapped, | |||
642 | * for min, consider box's width */ | |||
643 | if (min < b->width) | |||
644 | min = b->width; | |||
645 | ||||
646 | } else if (b->parent->flags & NEED_MIN) { | |||
647 | /* If we care what the minimum width is, | |||
648 | * calculate it. (It's only needed if we're | |||
649 | * shrinking-to-fit.) */ | |||
650 | /* min = widest single word */ | |||
651 | i = 0; | |||
652 | do { | |||
653 | for (j = i; j != b->length && | |||
654 | b->text[j] != ' '; j++) | |||
655 | ; | |||
656 | font_func->width(&fstyle, b->text + i, | |||
657 | j - i, &width); | |||
658 | if (min < width) | |||
659 | min = width; | |||
660 | i = j + 1; | |||
661 | } while (j != b->length); | |||
662 | } | |||
663 | ||||
664 | *line_has_height = true1; | |||
665 | ||||
666 | continue; | |||
667 | } | |||
668 | ||||
669 | /* inline replaced, 10.3.2 and 10.6.2 */ | |||
670 | assert(b->style)((b->style) ? (void) (0) : __assert_fail ("b->style", "content/handlers/html/layout.c" , 670, __extension__ __PRETTY_FUNCTION__)); | |||
671 | ||||
672 | /* calculate box width */ | |||
673 | wtype = css_computed_width(b->style, &value, &unit); | |||
674 | bs = css_computed_box_sizing(block->style); | |||
675 | if (wtype == CSS_WIDTH_SET) { | |||
676 | if (unit == CSS_UNIT_PCT) { | |||
677 | width = AUTO(-2147483647 -1); | |||
678 | } else { | |||
679 | width = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( b->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
680 | b->style,((css_unit_len2device_px( b->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
681 | &content->unit_len_ctx,((css_unit_len2device_px( b->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
682 | value, unit))((css_unit_len2device_px( b->style, &content->unit_len_ctx , value, unit)) >> 10); | |||
683 | ||||
684 | if (bs == CSS_BOX_SIZING_BORDER_BOX) { | |||
685 | fixed = frac = 0; | |||
686 | calculate_mbp_width(&content->unit_len_ctx, | |||
687 | block->style, LEFT, | |||
688 | false0, true1, true1, | |||
689 | &fixed, &frac); | |||
690 | calculate_mbp_width(&content->unit_len_ctx, | |||
691 | block->style, RIGHT, | |||
692 | false0, true1, true1, | |||
693 | &fixed, &frac); | |||
694 | if (width < fixed) { | |||
695 | width = fixed; | |||
696 | } | |||
697 | } | |||
698 | if (width < 0) | |||
699 | width = 0; | |||
700 | } | |||
701 | } else { | |||
702 | width = AUTO(-2147483647 -1); | |||
703 | } | |||
704 | ||||
705 | /* height */ | |||
706 | htype = css_computed_height(b->style, &value, &unit); | |||
707 | if (htype == CSS_HEIGHT_SET) { | |||
708 | height = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( b->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
709 | b->style,((css_unit_len2device_px( b->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
710 | &content->unit_len_ctx,((css_unit_len2device_px( b->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
711 | value, unit))((css_unit_len2device_px( b->style, &content->unit_len_ctx , value, unit)) >> 10); | |||
712 | } else { | |||
713 | height = AUTO(-2147483647 -1); | |||
714 | } | |||
715 | ||||
716 | if (b->object || (b->flags & REPLACE_DIM)) { | |||
717 | if (b->object) { | |||
718 | int temp_height = height; | |||
719 | layout_get_object_dimensions(b, | |||
720 | &width, &temp_height, | |||
721 | INT_MIN(-2147483647 -1), INT_MAX2147483647, | |||
722 | INT_MIN(-2147483647 -1), INT_MAX2147483647); | |||
723 | } | |||
724 | ||||
725 | fixed = frac = 0; | |||
726 | if (bs == CSS_BOX_SIZING_BORDER_BOX) { | |||
727 | calculate_mbp_width(&content->unit_len_ctx, | |||
728 | b->style, LEFT, | |||
729 | true1, false0, false0, | |||
730 | &fixed, &frac); | |||
731 | calculate_mbp_width(&content->unit_len_ctx, | |||
732 | b->style, RIGHT, | |||
733 | true1, false0, false0, | |||
734 | &fixed, &frac); | |||
735 | } else { | |||
736 | calculate_mbp_width(&content->unit_len_ctx, | |||
737 | b->style, LEFT, | |||
738 | true1, true1, true1, | |||
739 | &fixed, &frac); | |||
740 | calculate_mbp_width(&content->unit_len_ctx, | |||
741 | b->style, RIGHT, | |||
742 | true1, true1, true1, | |||
743 | &fixed, &frac); | |||
744 | } | |||
745 | if (0 < width + fixed) | |||
746 | width += fixed; | |||
747 | } else if (b->flags & IFRAME) { | |||
748 | /* TODO: handle percentage widths properly */ | |||
749 | if (width == AUTO(-2147483647 -1)) | |||
750 | width = 400; | |||
751 | ||||
752 | fixed = frac = 0; | |||
753 | if (bs == CSS_BOX_SIZING_BORDER_BOX) { | |||
754 | calculate_mbp_width(&content->unit_len_ctx, | |||
755 | b->style, LEFT, | |||
756 | true1, false0, false0, | |||
757 | &fixed, &frac); | |||
758 | calculate_mbp_width(&content->unit_len_ctx, | |||
759 | b->style, RIGHT, | |||
760 | true1, false0, false0, | |||
761 | &fixed, &frac); | |||
762 | } else { | |||
763 | calculate_mbp_width(&content->unit_len_ctx, | |||
764 | b->style, LEFT, | |||
765 | true1, true1, true1, | |||
766 | &fixed, &frac); | |||
767 | calculate_mbp_width(&content->unit_len_ctx, | |||
768 | b->style, RIGHT, | |||
769 | true1, true1, true1, | |||
770 | &fixed, &frac); | |||
771 | } | |||
772 | ||||
773 | if (0 < width + fixed) | |||
774 | width += fixed; | |||
775 | ||||
776 | } else { | |||
777 | /* form control with no object */ | |||
778 | if (width == AUTO(-2147483647 -1)) | |||
779 | 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) | |||
780 | b->style,((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10) | |||
781 | &content->unit_len_ctx,((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10) | |||
782 | INTTOFIX(1), CSS_UNIT_EM))((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10); | |||
783 | } | |||
784 | ||||
785 | if (min < width && !box_has_percentage_max_width(b)) | |||
786 | min = width; | |||
787 | if (width > 0) | |||
788 | max += width; | |||
789 | ||||
790 | *line_has_height = true1; | |||
791 | } | |||
792 | ||||
793 | if (first_line) { | |||
794 | /* todo: handle percentage values properly */ | |||
795 | /* todo: handle text-indent interaction with floats */ | |||
796 | int text_indent = layout_text_indent(&content->unit_len_ctx, | |||
797 | first->parent->parent->style, 100); | |||
798 | min = (min + text_indent < 0) ? 0 : min + text_indent; | |||
799 | max = (max + text_indent < 0) ? 0 : max + text_indent; | |||
800 | } | |||
801 | ||||
802 | *line_min = min; | |||
803 | *line_max = max; | |||
804 | ||||
805 | 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, 805, }; nslog__log(&_nslog_ctx , "line_min %i, line_max %i", min, max); } } while(0); | |||
806 | ||||
807 | assert(b != first)((b != first) ? (void) (0) : __assert_fail ("b != first", "content/handlers/html/layout.c" , 807, __extension__ __PRETTY_FUNCTION__)); | |||
808 | assert(0 <= *line_min)((0 <= *line_min) ? (void) (0) : __assert_fail ("0 <= *line_min" , "content/handlers/html/layout.c", 808, __extension__ __PRETTY_FUNCTION__ )); | |||
809 | assert(*line_min <= *line_max)((*line_min <= *line_max) ? (void) (0) : __assert_fail ("*line_min <= *line_max" , "content/handlers/html/layout.c", 809, __extension__ __PRETTY_FUNCTION__ )); | |||
810 | return b; | |||
811 | } | |||
812 | ||||
813 | ||||
814 | /** | |||
815 | * Calculate minimum and maximum width of an inline container. | |||
816 | * | |||
817 | * \param inline_container box of type INLINE_CONTAINER | |||
818 | * \param[out] has_height set to true if container has height | |||
819 | * \param font_func Font functions. | |||
820 | * \post inline_container->min_width and inline_container->max_width filled in, | |||
821 | * 0 <= inline_container->min_width <= inline_container->max_width | |||
822 | */ | |||
823 | static void | |||
824 | layout_minmax_inline_container(struct box *inline_container, | |||
825 | bool_Bool *has_height, | |||
826 | const struct gui_layout_table *font_func, | |||
827 | const html_content *content) | |||
828 | { | |||
829 | struct box *child; | |||
830 | int line_min = 0, line_max = 0; | |||
831 | int min = 0, max = 0; | |||
832 | bool_Bool first_line = true1; | |||
833 | bool_Bool line_has_height; | |||
834 | ||||
835 | 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", 835, __extension__ __PRETTY_FUNCTION__ )); | |||
836 | ||||
837 | /* check if the widths have already been calculated */ | |||
838 | if (inline_container->max_width != UNKNOWN_MAX_WIDTH2147483647) | |||
839 | return; | |||
840 | ||||
841 | *has_height = false0; | |||
842 | ||||
843 | for (child = inline_container->children; child; ) { | |||
844 | child = layout_minmax_line(child, &line_min, &line_max, | |||
845 | first_line, &line_has_height, font_func, | |||
846 | content); | |||
847 | if (min < line_min) | |||
848 | min = line_min; | |||
849 | if (max < line_max) | |||
850 | max = line_max; | |||
851 | first_line = false0; | |||
852 | *has_height |= line_has_height; | |||
853 | } | |||
854 | ||||
855 | inline_container->min_width = min; | |||
856 | inline_container->max_width = max; | |||
857 | ||||
858 | 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", 860, __extension__ __PRETTY_FUNCTION__ )) | |||
859 | 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", 860, __extension__ __PRETTY_FUNCTION__ )) | |||
860 | 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", 860, __extension__ __PRETTY_FUNCTION__ )); | |||
861 | } | |||
862 | ||||
863 | /** | |||
864 | * Calculate minimum and maximum width of a block. | |||
865 | * | |||
866 | * \param block box of type BLOCK, INLINE_BLOCK, or TABLE_CELL | |||
867 | * \param font_func font functions | |||
868 | * \param content The HTML content being layed out. | |||
869 | * \post block->min_width and block->max_width filled in, | |||
870 | * 0 <= block->min_width <= block->max_width | |||
871 | */ | |||
872 | static void layout_minmax_block( | |||
873 | struct box *block, | |||
874 | const struct gui_layout_table *font_func, | |||
875 | const html_content *content) | |||
876 | { | |||
877 | struct box *child; | |||
878 | int min = 0, max = 0; | |||
879 | int extra_fixed = 0; | |||
880 | float extra_frac = 0; | |||
881 | enum css_width_e wtype = CSS_WIDTH_AUTO; | |||
882 | css_fixed width = 0; | |||
883 | css_unit wunit = CSS_UNIT_PX; | |||
884 | enum css_height_e htype = CSS_HEIGHT_AUTO; | |||
885 | css_fixed height = 0; | |||
886 | css_unit hunit = CSS_UNIT_PX; | |||
887 | enum css_box_sizing_e bs = CSS_BOX_SIZING_CONTENT_BOX; | |||
888 | bool_Bool using_min_border_box = false0; | |||
889 | bool_Bool using_max_border_box = false0; | |||
890 | bool_Bool child_has_height = false0; | |||
891 | ||||
892 | 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", 896, __extension__ __PRETTY_FUNCTION__ )) | |||
893 | 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", 896, __extension__ __PRETTY_FUNCTION__ )) | |||
894 | 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", 896, __extension__ __PRETTY_FUNCTION__ )) | |||
895 | 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", 896, __extension__ __PRETTY_FUNCTION__ )) | |||
896 | 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", 896, __extension__ __PRETTY_FUNCTION__ )); | |||
897 | ||||
898 | /* check if the widths have already been calculated */ | |||
899 | if (block->max_width != UNKNOWN_MAX_WIDTH2147483647) | |||
900 | return; | |||
901 | ||||
902 | if (block->style != NULL((void*)0)) { | |||
903 | wtype = css_computed_width(block->style, &width, &wunit); | |||
904 | htype = css_computed_height(block->style, &height, &hunit); | |||
905 | bs = css_computed_box_sizing(block->style); | |||
906 | } | |||
907 | ||||
908 | /* set whether the minimum width is of any interest for this box */ | |||
909 | if (((block->parent && lh__box_is_float_box(block->parent)) || | |||
910 | block->type == BOX_INLINE_BLOCK || | |||
911 | block->type == BOX_INLINE_FLEX) && | |||
912 | wtype != CSS_WIDTH_SET) { | |||
913 | /* box shrinks to fit; need minimum width */ | |||
914 | block->flags |= NEED_MIN; | |||
915 | } else if (block->type == BOX_TABLE_CELL) { | |||
916 | /* box shrinks to fit; need minimum width */ | |||
917 | block->flags |= NEED_MIN; | |||
918 | } else if (block->parent && (block->parent->flags & NEED_MIN) && | |||
919 | wtype != CSS_WIDTH_SET) { | |||
920 | /* box inside shrink-to-fit context; need minimum width */ | |||
921 | block->flags |= NEED_MIN; | |||
922 | } else if (block->parent && (block->parent->type == BOX_FLEX)) { | |||
923 | /* box is flex item */ | |||
924 | block->flags |= NEED_MIN; | |||
925 | } | |||
926 | ||||
927 | if (block->gadget && (block->gadget->type == GADGET_TEXTBOX || | |||
928 | block->gadget->type == GADGET_PASSWORD || | |||
929 | block->gadget->type == GADGET_FILE || | |||
930 | block->gadget->type == GADGET_TEXTAREA) && | |||
931 | block->style && wtype == CSS_WIDTH_AUTO) { | |||
932 | css_fixed size = INTTOFIX(10)(css_int_to_fixed(10)); | |||
933 | css_unit unit = CSS_UNIT_EM; | |||
934 | ||||
935 | min = max = FIXTOINT(css_unit_len2device_px(block->style,((css_unit_len2device_px(block->style, &content->unit_len_ctx , size, unit)) >> 10) | |||
936 | &content->unit_len_ctx, size, unit))((css_unit_len2device_px(block->style, &content->unit_len_ctx , size, unit)) >> 10); | |||
937 | ||||
938 | block->flags |= HAS_HEIGHT; | |||
939 | } | |||
940 | ||||
941 | if (block->gadget && (block->gadget->type == GADGET_RADIO || | |||
942 | block->gadget->type == GADGET_CHECKBOX) && | |||
943 | block->style && wtype == CSS_WIDTH_AUTO) { | |||
944 | css_fixed size = INTTOFIX(1)(css_int_to_fixed(1)); | |||
945 | css_unit unit = CSS_UNIT_EM; | |||
946 | ||||
947 | /* form checkbox or radio button | |||
948 | * if width is AUTO, set it to 1em */ | |||
949 | min = max = FIXTOINT(css_unit_len2device_px(block->style,((css_unit_len2device_px(block->style, &content->unit_len_ctx , size, unit)) >> 10) | |||
950 | &content->unit_len_ctx, size, unit))((css_unit_len2device_px(block->style, &content->unit_len_ctx , size, unit)) >> 10); | |||
951 | ||||
952 | block->flags |= HAS_HEIGHT; | |||
953 | } | |||
954 | ||||
955 | if (block->object) { | |||
956 | if (content_get_type(block->object) == CONTENT_HTML) { | |||
957 | layout_minmax_block(html_get_box_tree(block->object), | |||
958 | font_func, content); | |||
959 | min = html_get_box_tree(block->object)->min_width; | |||
960 | max = html_get_box_tree(block->object)->max_width; | |||
961 | } else { | |||
962 | min = max = content_get_width(block->object); | |||
963 | } | |||
964 | ||||
965 | block->flags |= HAS_HEIGHT; | |||
966 | } else if (block->flags & IFRAME) { | |||
967 | /** \todo do we need to know the min/max width of the iframe's | |||
968 | * content? */ | |||
969 | block->flags |= HAS_HEIGHT; | |||
970 | } else { | |||
971 | /* recurse through children */ | |||
972 | for (child = block->children; child; child = child->next) { | |||
973 | switch (child->type) { | |||
974 | case BOX_FLEX: | |||
975 | case BOX_BLOCK: | |||
976 | layout_minmax_block(child, font_func, | |||
977 | content); | |||
978 | if (child->flags & HAS_HEIGHT) | |||
979 | child_has_height = true1; | |||
980 | break; | |||
981 | case BOX_INLINE_CONTAINER: | |||
982 | if (block->flags & NEED_MIN) | |||
983 | child->flags |= NEED_MIN; | |||
984 | ||||
985 | layout_minmax_inline_container(child, | |||
986 | &child_has_height, font_func, | |||
987 | content); | |||
988 | if (child_has_height && | |||
989 | child == | |||
990 | child->parent->children) { | |||
991 | block->flags |= MAKE_HEIGHT; | |||
992 | } | |||
993 | break; | |||
994 | case BOX_TABLE: | |||
995 | layout_minmax_table(child, font_func, | |||
996 | content); | |||
997 | /* todo: fix for zero height tables */ | |||
998 | child_has_height = true1; | |||
999 | child->flags |= MAKE_HEIGHT; | |||
1000 | break; | |||
1001 | default: | |||
1002 | assert(0)((0) ? (void) (0) : __assert_fail ("0", "content/handlers/html/layout.c" , 1002, __extension__ __PRETTY_FUNCTION__)); | |||
1003 | } | |||
1004 | 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" , 1004, __extension__ __PRETTY_FUNCTION__)); | |||
1005 | ||||
1006 | if (child->style && | |||
1007 | (css_computed_position(child->style) == | |||
1008 | CSS_POSITION_ABSOLUTE || | |||
1009 | css_computed_position(child->style) == | |||
1010 | CSS_POSITION_FIXED)) { | |||
1011 | /* This child is positioned out of normal flow, | |||
1012 | * so it will have no affect on width */ | |||
1013 | continue; | |||
1014 | } | |||
1015 | ||||
1016 | if (lh__box_is_flex_container(block) && | |||
1017 | lh__flex_main_is_horizontal(block)) { | |||
1018 | if (block->style != NULL((void*)0) && | |||
1019 | css_computed_flex_wrap(block->style) == | |||
1020 | CSS_FLEX_WRAP_NOWRAP) { | |||
1021 | min += child->min_width; | |||
1022 | } else { | |||
1023 | if (min < child->min_width) | |||
1024 | min = child->min_width; | |||
1025 | } | |||
1026 | max += child->max_width; | |||
1027 | ||||
1028 | } else { | |||
1029 | if (min < child->min_width) | |||
1030 | min = child->min_width; | |||
1031 | if (max < child->max_width) | |||
1032 | max = child->max_width; | |||
1033 | } | |||
1034 | ||||
1035 | if (child_has_height) | |||
1036 | block->flags |= HAS_HEIGHT; | |||
1037 | } | |||
1038 | } | |||
1039 | ||||
1040 | if (max < min) { | |||
1041 | box_dump(stderrstderr, block, 0, true1); | |||
1042 | assert(0)((0) ? (void) (0) : __assert_fail ("0", "content/handlers/html/layout.c" , 1042, __extension__ __PRETTY_FUNCTION__)); | |||
1043 | } | |||
1044 | ||||
1045 | /* fixed width takes priority */ | |||
1046 | if (block->type != BOX_TABLE_CELL && !lh__box_is_flex_item(block)) { | |||
1047 | bool_Bool border_box = bs == CSS_BOX_SIZING_BORDER_BOX; | |||
1048 | enum css_max_width_e max_type; | |||
1049 | enum css_min_width_e min_type; | |||
1050 | css_unit unit = CSS_UNIT_PX; | |||
1051 | css_fixed value = 0; | |||
1052 | ||||
1053 | if (wtype == CSS_WIDTH_SET && wunit != CSS_UNIT_PCT) { | |||
1054 | min = max = FIXTOINT(((css_unit_len2device_px(block->style, &content->unit_len_ctx , width, wunit)) >> 10) | |||
1055 | css_unit_len2device_px(block->style,((css_unit_len2device_px(block->style, &content->unit_len_ctx , width, wunit)) >> 10) | |||
1056 | &content->unit_len_ctx, width, wunit))((css_unit_len2device_px(block->style, &content->unit_len_ctx , width, wunit)) >> 10); | |||
1057 | using_max_border_box = border_box; | |||
1058 | using_min_border_box = border_box; | |||
1059 | } | |||
1060 | ||||
1061 | min_type = css_computed_min_width(block->style, &value, &unit); | |||
1062 | if (min_type == CSS_MIN_WIDTH_SET && unit != CSS_UNIT_PCT) { | |||
1063 | int val = FIXTOINT(css_unit_len2device_px(block->style,((css_unit_len2device_px(block->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
1064 | &content->unit_len_ctx, value, unit))((css_unit_len2device_px(block->style, &content->unit_len_ctx , value, unit)) >> 10); | |||
1065 | ||||
1066 | if (min < val) { | |||
1067 | min = val; | |||
1068 | using_min_border_box = border_box; | |||
1069 | } | |||
1070 | } | |||
1071 | ||||
1072 | max_type = css_computed_max_width(block->style, &value, &unit); | |||
1073 | if (max_type == CSS_MAX_WIDTH_SET && unit != CSS_UNIT_PCT) { | |||
1074 | int val = FIXTOINT(css_unit_len2device_px(block->style,((css_unit_len2device_px(block->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
1075 | &content->unit_len_ctx, value, unit))((css_unit_len2device_px(block->style, &content->unit_len_ctx , value, unit)) >> 10); | |||
1076 | ||||
1077 | if (val >= 0 && max > val) { | |||
1078 | max = val; | |||
1079 | using_max_border_box = border_box; | |||
1080 | } | |||
1081 | } | |||
1082 | } | |||
1083 | ||||
1084 | if (htype == CSS_HEIGHT_SET && hunit != CSS_UNIT_PCT && | |||
1085 | height > INTTOFIX(0)(css_int_to_fixed(0))) { | |||
1086 | block->flags |= MAKE_HEIGHT; | |||
1087 | block->flags |= HAS_HEIGHT; | |||
1088 | } | |||
1089 | ||||
1090 | /* add margins, border, padding to min, max widths */ | |||
1091 | /* Note: we don't know available width here so percentage margin | |||
1092 | * and paddings are wrong. */ | |||
1093 | calculate_mbp_width(&content->unit_len_ctx, block->style, LEFT, | |||
1094 | false0, true1, true1, &extra_fixed, &extra_frac); | |||
1095 | calculate_mbp_width(&content->unit_len_ctx, block->style, RIGHT, | |||
1096 | false0, true1, true1, &extra_fixed, &extra_frac); | |||
1097 | ||||
1098 | if (using_max_border_box) { | |||
1099 | max -= extra_fixed; | |||
1100 | max = max(max, 0)(((max)>(0))?(max):(0)); | |||
1101 | } | |||
1102 | ||||
1103 | if (using_min_border_box) { | |||
1104 | min -= extra_fixed; | |||
1105 | min = max(min, 0)(((min)>(0))?(min):(0)); | |||
1106 | } | |||
1107 | ||||
1108 | if (max < min) { | |||
1109 | min = max; | |||
1110 | } | |||
1111 | ||||
1112 | calculate_mbp_width(&content->unit_len_ctx, block->style, LEFT, | |||
1113 | true1, false0, false0, &extra_fixed, &extra_frac); | |||
1114 | calculate_mbp_width(&content->unit_len_ctx, block->style, RIGHT, | |||
1115 | true1, false0, false0, &extra_fixed, &extra_frac); | |||
1116 | ||||
1117 | if (extra_fixed < 0) | |||
1118 | extra_fixed = 0; | |||
1119 | if (extra_frac < 0) | |||
1120 | extra_frac = 0; | |||
1121 | if (1.0 <= extra_frac) | |||
1122 | extra_frac = 0.9; | |||
1123 | if (block->style != NULL((void*)0) && | |||
1124 | (css_computed_float(block->style) == CSS_FLOAT_LEFT || | |||
1125 | css_computed_float(block->style) == CSS_FLOAT_RIGHT)) { | |||
1126 | /* floated boxs */ | |||
1127 | block->min_width = min + extra_fixed; | |||
1128 | block->max_width = max + extra_fixed; | |||
1129 | } else { | |||
1130 | /* not floated */ | |||
1131 | block->min_width = (min + extra_fixed) / (1.0 - extra_frac); | |||
1132 | block->max_width = (max + extra_fixed) / (1.0 - extra_frac); | |||
1133 | } | |||
1134 | ||||
1135 | assert(0 <= block->min_width)((0 <= block->min_width) ? (void) (0) : __assert_fail ( "0 <= block->min_width", "content/handlers/html/layout.c" , 1135, __extension__ __PRETTY_FUNCTION__)); | |||
1136 | 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", 1136, __extension__ __PRETTY_FUNCTION__ )); | |||
1137 | } | |||
1138 | ||||
1139 | ||||
1140 | /** | |||
1141 | * Find next block that current margin collapses to. | |||
1142 | * | |||
1143 | * \param unit_len_ctx Length conversion context | |||
1144 | * \param box box to start tree-order search from (top margin is included) | |||
1145 | * \param block box responsible for current block fromatting context | |||
1146 | * \param viewport_height height of viewport in px | |||
1147 | * \param max_pos_margin updated to to maximum positive margin encountered | |||
1148 | * \param max_neg_margin updated to to maximum negative margin encountered | |||
1149 | * \return next box that current margin collapses to, or NULL if none. | |||
1150 | */ | |||
1151 | static struct box* | |||
1152 | layout_next_margin_block(const css_unit_ctx *unit_len_ctx, | |||
1153 | struct box *box, | |||
1154 | struct box *block, | |||
1155 | int viewport_height, | |||
1156 | int *max_pos_margin, | |||
1157 | int *max_neg_margin) | |||
1158 | { | |||
1159 | assert(block != NULL)((block != ((void*)0)) ? (void) (0) : __assert_fail ("block != NULL" , "content/handlers/html/layout.c", 1159, __extension__ __PRETTY_FUNCTION__ )); | |||
1160 | ||||
1161 | while (box != NULL((void*)0)) { | |||
1162 | ||||
1163 | if (box->type == BOX_INLINE_CONTAINER || (box->style && | |||
1164 | (css_computed_position(box->style) != | |||
1165 | CSS_POSITION_ABSOLUTE && | |||
1166 | css_computed_position(box->style) != | |||
1167 | CSS_POSITION_FIXED))) { | |||
1168 | /* Not positioned */ | |||
1169 | ||||
1170 | /* Get margins */ | |||
1171 | if (box->style) { | |||
1172 | layout_find_dimensions(unit_len_ctx, | |||
1173 | box->parent->width, | |||
1174 | viewport_height, box, | |||
1175 | box->style, | |||
1176 | NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), | |||
1177 | NULL((void*)0), NULL((void*)0), box->margin, | |||
1178 | box->padding, box->border); | |||
1179 | ||||
1180 | /* Apply top margin */ | |||
1181 | if (*max_pos_margin < box->margin[TOP]) | |||
1182 | *max_pos_margin = box->margin[TOP]; | |||
1183 | else if (*max_neg_margin < -box->margin[TOP]) | |||
1184 | *max_neg_margin = -box->margin[TOP]; | |||
1185 | } | |||
1186 | ||||
1187 | /* Check whether box is the box current margin collapses | |||
1188 | * to */ | |||
1189 | if (box->flags & MAKE_HEIGHT || | |||
1190 | box->border[TOP].width || | |||
1191 | box->padding[TOP] || | |||
1192 | (box->style && | |||
1193 | css_computed_overflow_y(box->style) != | |||
1194 | CSS_OVERFLOW_VISIBLE) || | |||
1195 | (box->type == BOX_INLINE_CONTAINER && | |||
1196 | !box_is_first_child(box))) { | |||
1197 | /* Collapse to this box; return it */ | |||
1198 | return box; | |||
1199 | } | |||
1200 | } | |||
1201 | ||||
1202 | ||||
1203 | /* Find next box */ | |||
1204 | if (box->type == BOX_BLOCK && !box->object && box->children && | |||
1205 | box->style && | |||
1206 | css_computed_overflow_y(box->style) == | |||
1207 | CSS_OVERFLOW_VISIBLE) { | |||
1208 | /* Down into children. */ | |||
1209 | box = box->children; | |||
1210 | } else { | |||
1211 | if (!box->next) { | |||
1212 | /* No more siblings: | |||
1213 | * Go up to first ancestor with a sibling. */ | |||
1214 | do { | |||
1215 | /* Apply bottom margin */ | |||
1216 | if (*max_pos_margin < | |||
1217 | box->margin[BOTTOM]) | |||
1218 | *max_pos_margin = | |||
1219 | box->margin[BOTTOM]; | |||
1220 | else if (*max_neg_margin < | |||
1221 | -box->margin[BOTTOM]) | |||
1222 | *max_neg_margin = | |||
1223 | -box->margin[BOTTOM]; | |||
1224 | ||||
1225 | box = box->parent; | |||
1226 | } while (box != block && !box->next); | |||
1227 | ||||
1228 | if (box == block) { | |||
1229 | /* Margins don't collapse with stuff | |||
1230 | * outside the block formatting context | |||
1231 | */ | |||
1232 | return block; | |||
1233 | } | |||
1234 | } | |||
1235 | ||||
1236 | /* Apply bottom margin */ | |||
1237 | if (*max_pos_margin < box->margin[BOTTOM]) | |||
1238 | *max_pos_margin = box->margin[BOTTOM]; | |||
1239 | else if (*max_neg_margin < -box->margin[BOTTOM]) | |||
1240 | *max_neg_margin = -box->margin[BOTTOM]; | |||
1241 | ||||
1242 | /* To next sibling. */ | |||
1243 | box = box->next; | |||
1244 | ||||
1245 | /* Get margins */ | |||
1246 | if (box->style) { | |||
1247 | layout_find_dimensions(unit_len_ctx, | |||
1248 | box->parent->width, | |||
1249 | viewport_height, box, | |||
1250 | box->style, | |||
1251 | NULL((void*)0), NULL((void*)0), NULL((void*)0), NULL((void*)0), | |||
1252 | NULL((void*)0), NULL((void*)0), box->margin, | |||
1253 | box->padding, box->border); | |||
1254 | } | |||
1255 | } | |||
1256 | } | |||
1257 | ||||
1258 | return NULL((void*)0); | |||
1259 | } | |||
1260 | ||||
1261 | ||||
1262 | /** | |||
1263 | * Find y coordinate which clears all floats on left and/or right. | |||
1264 | * | |||
1265 | * \param fl first float in float list | |||
1266 | * \param clear type of clear | |||
1267 | * \return y coordinate relative to ancestor box for floats | |||
1268 | */ | |||
1269 | static int layout_clear(struct box *fl, enum css_clear_e clear) | |||
1270 | { | |||
1271 | int y = 0; | |||
1272 | for (; fl; fl = fl->next_float) { | |||
1273 | if ((clear == CSS_CLEAR_LEFT || clear == CSS_CLEAR_BOTH) && | |||
1274 | fl->type == BOX_FLOAT_LEFT) | |||
1275 | if (y < fl->y + fl->height) | |||
1276 | y = fl->y + fl->height; | |||
1277 | if ((clear == CSS_CLEAR_RIGHT || clear == CSS_CLEAR_BOTH) && | |||
1278 | fl->type == BOX_FLOAT_RIGHT) | |||
1279 | if (y < fl->y + fl->height) | |||
1280 | y = fl->y + fl->height; | |||
1281 | } | |||
1282 | return y; | |||
1283 | } | |||
1284 | ||||
1285 | ||||
1286 | /** | |||
1287 | * Find left and right edges in a vertical range. | |||
1288 | * | |||
1289 | * \param fl first float in float list | |||
1290 | * \param y0 start of y range to search | |||
1291 | * \param y1 end of y range to search | |||
1292 | * \param x0 start left edge, updated to available left edge | |||
1293 | * \param x1 start right edge, updated to available right edge | |||
1294 | * \param left returns float on left if present | |||
1295 | * \param right returns float on right if present | |||
1296 | */ | |||
1297 | static void | |||
1298 | find_sides(struct box *fl, | |||
1299 | int y0, int y1, | |||
1300 | int *x0, int *x1, | |||
1301 | struct box **left, | |||
1302 | struct box **right) | |||
1303 | { | |||
1304 | int fy0, fy1, fx0, fx1; | |||
1305 | ||||
1306 | 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, 1306, }; nslog__log(&_nslog_ctx , "y0 %i, y1 %i, x0 %i, x1 %i", y0, y1, *x0, *x1); } } while( 0); | |||
1307 | ||||
1308 | *left = *right = 0; | |||
1309 | for (; fl; fl = fl->next_float) { | |||
1310 | fy1 = fl->y + fl->height; | |||
1311 | if (fy1 < y0) { | |||
1312 | /* Floats are sorted in order of decreasing bottom pos. | |||
1313 | * Past here, all floats will be too high to concern us. | |||
1314 | */ | |||
1315 | return; | |||
1316 | } | |||
1317 | fy0 = fl->y; | |||
1318 | if (y0 < fy1 && fy0 <= y1) { | |||
1319 | if (fl->type == BOX_FLOAT_LEFT) { | |||
1320 | fx1 = fl->x + fl->width; | |||
1321 | if (*x0 < fx1) { | |||
1322 | *x0 = fx1; | |||
1323 | *left = fl; | |||
1324 | } | |||
1325 | } else { | |||
1326 | fx0 = fl->x; | |||
1327 | if (fx0 < *x1) { | |||
1328 | *x1 = fx0; | |||
1329 | *right = fl; | |||
1330 | } | |||
1331 | } | |||
1332 | } | |||
1333 | } | |||
1334 | ||||
1335 | 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, 1336, }; nslog__log(&_nslog_ctx , "x0 %i, x1 %i, left %p, right %p", *x0, *x1, *left, *right) ; } } while(0) | |||
1336 | *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, 1336, }; nslog__log(&_nslog_ctx , "x0 %i, x1 %i, left %p, right %p", *x0, *x1, *left, *right) ; } } while(0); | |||
1337 | } | |||
1338 | ||||
1339 | ||||
1340 | ||||
1341 | ||||
1342 | /** | |||
1343 | * Solve the width constraint as given in CSS 2.1 section 10.3.3. | |||
1344 | * | |||
1345 | * \param box Box to solve constraint for | |||
1346 | * \param available_width Max width available in pixels | |||
1347 | * \param width Current box width | |||
1348 | * \param lm Min left margin required to avoid floats in px. | |||
1349 | * zero if not applicable | |||
1350 | * \param rm Min right margin required to avoid floats in px. | |||
1351 | * zero if not applicable | |||
1352 | * \param max_width Box max-width ( -ve means no max-width to apply) | |||
1353 | * \param min_width Box min-width ( <=0 means no min-width to apply) | |||
1354 | * \return New box width | |||
1355 | * | |||
1356 | * \post \a box's left/right margins will be updated. | |||
1357 | */ | |||
1358 | static int | |||
1359 | layout_solve_width(struct box *box, | |||
1360 | int available_width, | |||
1361 | int width, | |||
1362 | int lm, | |||
1363 | int rm, | |||
1364 | int max_width, | |||
1365 | int min_width) | |||
1366 | { | |||
1367 | bool_Bool auto_width = false0; | |||
1368 | ||||
1369 | /* Increase specified left/right margins */ | |||
1370 | if (box->margin[LEFT] != AUTO(-2147483647 -1) && box->margin[LEFT] < lm && | |||
1371 | box->margin[LEFT] >= 0) | |||
1372 | box->margin[LEFT] = lm; | |||
1373 | if (box->margin[RIGHT] != AUTO(-2147483647 -1) && box->margin[RIGHT] < rm && | |||
1374 | box->margin[RIGHT] >= 0) | |||
1375 | box->margin[RIGHT] = rm; | |||
1376 | ||||
1377 | /* Find width */ | |||
1378 | if (width == AUTO(-2147483647 -1)) { | |||
1379 | int margin_left = box->margin[LEFT]; | |||
1380 | int margin_right = box->margin[RIGHT]; | |||
1381 | ||||
1382 | if (margin_left == AUTO(-2147483647 -1)) { | |||
1383 | margin_left = lm; | |||
1384 | } | |||
1385 | if (margin_right == AUTO(-2147483647 -1)) { | |||
1386 | margin_right = rm; | |||
1387 | } | |||
1388 | ||||
1389 | width = available_width - | |||
1390 | (margin_left + box->border[LEFT].width + | |||
1391 | box->padding[LEFT] + box->padding[RIGHT] + | |||
1392 | box->border[RIGHT].width + margin_right); | |||
1393 | width = width < 0 ? 0 : width; | |||
1394 | auto_width = true1; | |||
1395 | } | |||
1396 | ||||
1397 | if (max_width >= 0 && width > max_width) { | |||
1398 | /* max-width is admissable and width exceeds max-width */ | |||
1399 | width = max_width; | |||
1400 | auto_width = false0; | |||
1401 | } | |||
1402 | ||||
1403 | if (min_width > 0 && width < min_width) { | |||
1404 | /* min-width is admissable and width is less than max-width */ | |||
1405 | width = min_width; | |||
1406 | auto_width = false0; | |||
1407 | } | |||
1408 | ||||
1409 | /* Width was auto, and unconstrained by min/max width, so we're done */ | |||
1410 | if (auto_width) { | |||
1411 | /* any other 'auto' become 0 or the minimum required values */ | |||
1412 | if (box->margin[LEFT] == AUTO(-2147483647 -1)) { | |||
1413 | box->margin[LEFT] = lm; | |||
1414 | } | |||
1415 | if (box->margin[RIGHT] == AUTO(-2147483647 -1)) { | |||
1416 | box->margin[RIGHT] = rm; | |||
1417 | } | |||
1418 | return width; | |||
1419 | } | |||
1420 | ||||
1421 | /* Width was not auto, or was constrained by min/max width | |||
1422 | * Need to compute left/right margins */ | |||
1423 | ||||
1424 | /* HTML alignment (only applies to over-constrained boxes) */ | |||
1425 | if (box->margin[LEFT] != AUTO(-2147483647 -1) && box->margin[RIGHT] != AUTO(-2147483647 -1) && | |||
1426 | box->parent != NULL((void*)0) && box->parent->style != NULL((void*)0)) { | |||
1427 | switch (css_computed_text_align(box->parent->style)) { | |||
1428 | case CSS_TEXT_ALIGN_LIBCSS_RIGHT: | |||
1429 | box->margin[LEFT] = AUTO(-2147483647 -1); | |||
1430 | box->margin[RIGHT] = 0; | |||
1431 | break; | |||
1432 | case CSS_TEXT_ALIGN_LIBCSS_CENTER: | |||
1433 | box->margin[LEFT] = box->margin[RIGHT] = AUTO(-2147483647 -1); | |||
1434 | break; | |||
1435 | case CSS_TEXT_ALIGN_LIBCSS_LEFT: | |||
1436 | box->margin[LEFT] = 0; | |||
1437 | box->margin[RIGHT] = AUTO(-2147483647 -1); | |||
1438 | break; | |||
1439 | default: | |||
1440 | /* Leave it alone; no HTML alignment */ | |||
1441 | break; | |||
1442 | } | |||
1443 | } | |||
1444 | ||||
1445 | if (box->margin[LEFT] == AUTO(-2147483647 -1) && box->margin[RIGHT] == AUTO(-2147483647 -1)) { | |||
1446 | /* make the margins equal, centering the element */ | |||
1447 | box->margin[LEFT] = box->margin[RIGHT] = | |||
1448 | (available_width - lm - rm - | |||
1449 | (box->border[LEFT].width + box->padding[LEFT] + | |||
1450 | width + box->padding[RIGHT] + | |||
1451 | box->border[RIGHT].width)) / 2; | |||
1452 | ||||
1453 | if (box->margin[LEFT] < 0) { | |||
1454 | box->margin[RIGHT] += box->margin[LEFT]; | |||
1455 | box->margin[LEFT] = 0; | |||
1456 | } | |||
1457 | ||||
1458 | box->margin[LEFT] += lm; | |||
1459 | ||||
1460 | } else if (box->margin[LEFT] == AUTO(-2147483647 -1)) { | |||
1461 | box->margin[LEFT] = available_width - lm - | |||
1462 | (box->border[LEFT].width + box->padding[LEFT] + | |||
1463 | width + box->padding[RIGHT] + | |||
1464 | box->border[RIGHT].width + box->margin[RIGHT]); | |||
1465 | box->margin[LEFT] = box->margin[LEFT] < lm | |||
1466 | ? lm : box->margin[LEFT]; | |||
1467 | } else { | |||
1468 | /* margin-right auto or "over-constrained" */ | |||
1469 | box->margin[RIGHT] = available_width - rm - | |||
1470 | (box->margin[LEFT] + box->border[LEFT].width + | |||
1471 | box->padding[LEFT] + width + | |||
1472 | box->padding[RIGHT] + | |||
1473 | box->border[RIGHT].width); | |||
1474 | } | |||
1475 | ||||
1476 | return width; | |||
1477 | } | |||
1478 | ||||
1479 | ||||
1480 | /** | |||
1481 | * Compute dimensions of box, margins, paddings, and borders for a block-level | |||
1482 | * element. | |||
1483 | * | |||
1484 | * \param unit_len_ctx Length conversion context | |||
1485 | * \param available_width Max width available in pixels | |||
1486 | * \param viewport_height Height of viewport in pixels or -ve if unknown | |||
1487 | * \param lm min left margin required to avoid floats in px. | |||
1488 | * zero if not applicable | |||
1489 | * \param rm min right margin required to avoid floats in px. | |||
1490 | * zero if not applicable | |||
1491 | * \param box box to find dimensions of. updated with new width, | |||
1492 | * height, margins, borders and paddings | |||
1493 | * | |||
1494 | * See CSS 2.1 10.3.3, 10.3.4, 10.6.2, and 10.6.3. | |||
1495 | */ | |||
1496 | static void | |||
1497 | layout_block_find_dimensions(const css_unit_ctx *unit_len_ctx, | |||
1498 | int available_width, | |||
1499 | int viewport_height, | |||
1500 | int lm, | |||
1501 | int rm, | |||
1502 | struct box *box) | |||
1503 | { | |||
1504 | int width, max_width, min_width; | |||
1505 | int height, max_height, min_height; | |||
1506 | int *margin = box->margin; | |||
1507 | int *padding = box->padding; | |||
1508 | struct box_border *border = box->border; | |||
1509 | const css_computed_style *style = box->style; | |||
1510 | ||||
1511 | layout_find_dimensions(unit_len_ctx, available_width, viewport_height, box, | |||
1512 | style, &width, &height, &max_width, &min_width, | |||
1513 | &max_height, &min_height, margin, padding, border); | |||
1514 | ||||
1515 | if (box->object && !(box->flags & REPLACE_DIM) && | |||
1516 | content_get_type(box->object) != CONTENT_HTML) { | |||
1517 | /* block-level replaced element, see 10.3.4 and 10.6.2 */ | |||
1518 | layout_get_object_dimensions(box, &width, &height, | |||
1519 | min_width, max_width, min_height, max_height); | |||
1520 | } | |||
1521 | ||||
1522 | box->width = layout_solve_width(box, available_width, width, lm, rm, | |||
1523 | max_width, min_width); | |||
1524 | box->height = height; | |||
1525 | ||||
1526 | if (margin[TOP] == AUTO(-2147483647 -1)) | |||
1527 | margin[TOP] = 0; | |||
1528 | if (margin[BOTTOM] == AUTO(-2147483647 -1)) | |||
1529 | margin[BOTTOM] = 0; | |||
1530 | } | |||
1531 | ||||
1532 | ||||
1533 | /** | |||
1534 | * Manipulate a block's [RB]padding/height/width to accommodate scrollbars | |||
1535 | * | |||
1536 | * \param box Box to apply scrollbar space too. Must be BOX_BLOCK. | |||
1537 | * \param which Which scrollbar to make space for. Must be RIGHT or BOTTOM. | |||
1538 | */ | |||
1539 | static void layout_block_add_scrollbar(struct box *box, int which) | |||
1540 | { | |||
1541 | enum css_overflow_e overflow_x, overflow_y; | |||
1542 | ||||
1543 | 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", 1543, __extension__ __PRETTY_FUNCTION__ )); | |||
1544 | ||||
1545 | if (box->style == NULL((void*)0)) | |||
1546 | return; | |||
1547 | ||||
1548 | overflow_x = css_computed_overflow_x(box->style); | |||
1549 | overflow_y = css_computed_overflow_y(box->style); | |||
1550 | ||||
1551 | if (which == BOTTOM && | |||
1552 | (overflow_x == CSS_OVERFLOW_SCROLL || | |||
1553 | overflow_x == CSS_OVERFLOW_AUTO || | |||
1554 | (box->object && | |||
1555 | content_get_type(box->object) == CONTENT_HTML))) { | |||
1556 | /* make space for scrollbar, unless height is AUTO */ | |||
1557 | if (box->height != AUTO(-2147483647 -1) && | |||
1558 | (overflow_x == CSS_OVERFLOW_SCROLL || | |||
1559 | box_hscrollbar_present(box))) { | |||
1560 | box->padding[BOTTOM] += SCROLLBAR_WIDTH16; | |||
1561 | } | |||
1562 | ||||
1563 | } else if (which == RIGHT && | |||
1564 | (overflow_y == CSS_OVERFLOW_SCROLL || | |||
1565 | overflow_y == CSS_OVERFLOW_AUTO || | |||
1566 | (box->object && | |||
1567 | content_get_type(box->object) == CONTENT_HTML))) { | |||
1568 | /* make space for scrollbars, unless width is AUTO */ | |||
1569 | enum css_height_e htype; | |||
1570 | css_fixed height = 0; | |||
1571 | css_unit hunit = CSS_UNIT_PX; | |||
1572 | htype = css_computed_height(box->style, &height, &hunit); | |||
1573 | ||||
1574 | if (which == RIGHT && box->width != AUTO(-2147483647 -1) && | |||
1575 | htype == CSS_HEIGHT_SET && | |||
1576 | (overflow_y == CSS_OVERFLOW_SCROLL || | |||
1577 | box_vscrollbar_present(box))) { | |||
1578 | box->width -= SCROLLBAR_WIDTH16; | |||
1579 | box->padding[RIGHT] += SCROLLBAR_WIDTH16; | |||
1580 | } | |||
1581 | } | |||
1582 | } | |||
1583 | ||||
1584 | ||||
1585 | /** | |||
1586 | * Moves the children of a box by a specified amount | |||
1587 | * | |||
1588 | * \param box top of tree of boxes | |||
1589 | * \param x the amount to move children by horizontally | |||
1590 | * \param y the amount to move children by vertically | |||
1591 | */ | |||
1592 | static void layout_move_children(struct box *box, int x, int y) | |||
1593 | { | |||
1594 | assert(box)((box) ? (void) (0) : __assert_fail ("box", "content/handlers/html/layout.c" , 1594, __extension__ __PRETTY_FUNCTION__)); | |||
1595 | ||||
1596 | for (box = box->children; box; box = box->next) { | |||
1597 | box->x += x; | |||
1598 | box->y += y; | |||
1599 | } | |||
1600 | } | |||
1601 | ||||
1602 | ||||
1603 | /* Documented in layout_internal.h */ | |||
1604 | bool_Bool layout_table( | |||
1605 | struct box *table, | |||
1606 | int available_width, | |||
1607 | html_content *content) | |||
1608 | { | |||
1609 | unsigned int columns = table->columns; /* total columns */ | |||
1610 | unsigned int i; | |||
1611 | unsigned int *row_span; | |||
1612 | int *excess_y; | |||
1613 | int table_width, min_width = 0, max_width = 0; | |||
1614 | int required_width = 0; | |||
1615 | int x, remainder = 0, count = 0; | |||
1616 | int table_height = 0; | |||
1617 | int min_height = 0; | |||
1618 | int *xs; /* array of column x positions */ | |||
1619 | int auto_width; | |||
1620 | int spare_width; | |||
1621 | int relative_sum = 0; | |||
1622 | int border_spacing_h = 0, border_spacing_v = 0; | |||
1623 | int spare_height; | |||
1624 | int positioned_columns = 0; | |||
1625 | struct box *containing_block = NULL((void*)0); | |||
1626 | struct box *c; | |||
1627 | struct box *row; | |||
1628 | struct box *row_group; | |||
1629 | struct box **row_span_cell; | |||
1630 | struct column *col; | |||
1631 | const css_computed_style *style = table->style; | |||
1632 | enum css_width_e wtype; | |||
1633 | enum css_height_e htype; | |||
1634 | css_fixed value = 0; | |||
1635 | css_unit unit = CSS_UNIT_PX; | |||
1636 | ||||
1637 | assert(table->type == BOX_TABLE)((table->type == BOX_TABLE) ? (void) (0) : __assert_fail ( "table->type == BOX_TABLE", "content/handlers/html/layout.c" , 1637, __extension__ __PRETTY_FUNCTION__)); | |||
1638 | assert(style)((style) ? (void) (0) : __assert_fail ("style", "content/handlers/html/layout.c" , 1638, __extension__ __PRETTY_FUNCTION__)); | |||
1639 | 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", 1639, __extension__ __PRETTY_FUNCTION__ )); | |||
1640 | assert(columns)((columns) ? (void) (0) : __assert_fail ("columns", "content/handlers/html/layout.c" , 1640, __extension__ __PRETTY_FUNCTION__)); | |||
1641 | ||||
1642 | /* allocate working buffers */ | |||
1643 | col = malloc(columns * sizeof col[0]); | |||
1644 | excess_y = malloc(columns * sizeof excess_y[0]); | |||
1645 | row_span = malloc(columns * sizeof row_span[0]); | |||
1646 | row_span_cell = malloc(columns * sizeof row_span_cell[0]); | |||
1647 | xs = malloc((columns + 1) * sizeof xs[0]); | |||
1648 | if (!col || !xs || !row_span || !excess_y || !row_span_cell) { | |||
1649 | free(col); | |||
1650 | free(excess_y); | |||
1651 | free(row_span); | |||
1652 | free(row_span_cell); | |||
1653 | free(xs); | |||
1654 | return false0; | |||
1655 | } | |||
1656 | ||||
1657 | memcpy(col, table->col, sizeof(col[0]) * columns); | |||
1658 | ||||
1659 | /* find margins, paddings, and borders for table and cells */ | |||
1660 | layout_find_dimensions(&content->unit_len_ctx, available_width, -1, table, | |||
1661 | style, 0, 0, 0, 0, 0, 0, table->margin, table->padding, | |||
1662 | table->border); | |||
1663 | for (row_group = table->children; row_group; | |||
1664 | row_group = row_group->next) { | |||
1665 | for (row = row_group->children; row; row = row->next) { | |||
1666 | for (c = row->children; c; c = c->next) { | |||
1667 | enum css_overflow_e overflow_x; | |||
1668 | enum css_overflow_e overflow_y; | |||
1669 | ||||
1670 | assert(c->style)((c->style) ? (void) (0) : __assert_fail ("c->style", "content/handlers/html/layout.c" , 1670, __extension__ __PRETTY_FUNCTION__)); | |||
1671 | table_used_border_for_cell( | |||
1672 | &content->unit_len_ctx, c); | |||
1673 | layout_find_dimensions(&content->unit_len_ctx, | |||
1674 | available_width, -1, c, | |||
1675 | c->style, 0, 0, 0, 0, 0, 0, | |||
1676 | 0, c->padding, c->border); | |||
1677 | ||||
1678 | overflow_x = css_computed_overflow_x(c->style); | |||
1679 | overflow_y = css_computed_overflow_y(c->style); | |||
1680 | ||||
1681 | if (overflow_x == CSS_OVERFLOW_SCROLL || | |||
1682 | overflow_x == | |||
1683 | CSS_OVERFLOW_AUTO) { | |||
1684 | c->padding[BOTTOM] += SCROLLBAR_WIDTH16; | |||
1685 | } | |||
1686 | if (overflow_y == CSS_OVERFLOW_SCROLL || | |||
1687 | overflow_y == | |||
1688 | CSS_OVERFLOW_AUTO) { | |||
1689 | c->padding[RIGHT] += SCROLLBAR_WIDTH16; | |||
1690 | } | |||
1691 | } | |||
1692 | } | |||
1693 | } | |||
1694 | ||||
1695 | /* border-spacing is used in the separated borders model */ | |||
1696 | if (css_computed_border_collapse(style) == | |||
1697 | CSS_BORDER_COLLAPSE_SEPARATE) { | |||
1698 | css_fixed h = 0, v = 0; | |||
1699 | css_unit hu = CSS_UNIT_PX, vu = CSS_UNIT_PX; | |||
1700 | ||||
1701 | css_computed_border_spacing(style, &h, &hu, &v, &vu); | |||
1702 | ||||
1703 | border_spacing_h = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( style, &content->unit_len_ctx , h, hu)) >> 10) | |||
1704 | style, &content->unit_len_ctx, h, hu))((css_unit_len2device_px( style, &content->unit_len_ctx , h, hu)) >> 10); | |||
1705 | border_spacing_v = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( style, &content->unit_len_ctx , v, vu)) >> 10) | |||
1706 | style, &content->unit_len_ctx, v, vu))((css_unit_len2device_px( style, &content->unit_len_ctx , v, vu)) >> 10); | |||
1707 | } | |||
1708 | ||||
1709 | /* find specified table width, or available width if auto-width */ | |||
1710 | wtype = css_computed_width(style, &value, &unit); | |||
1711 | if (wtype == CSS_WIDTH_SET) { | |||
1712 | if (unit == CSS_UNIT_PCT) { | |||
1713 | table_width = FPCT_OF_INT_TOINT(value, available_width)((((css_divide_fixed(((value * available_width)), (0x00019000 )))) >> 10)); | |||
1714 | } else { | |||
1715 | table_width = | |||
1716 | FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( style, &content->unit_len_ctx , value, unit)) >> 10) | |||
1717 | style, &content->unit_len_ctx,((css_unit_len2device_px( style, &content->unit_len_ctx , value, unit)) >> 10) | |||
1718 | value, unit))((css_unit_len2device_px( style, &content->unit_len_ctx , value, unit)) >> 10); | |||
1719 | } | |||
1720 | ||||
1721 | /* specified width includes border */ | |||
1722 | table_width -= table->border[LEFT].width + | |||
1723 | table->border[RIGHT].width; | |||
1724 | table_width = table_width < 0 ? 0 : table_width; | |||
1725 | ||||
1726 | auto_width = table_width; | |||
1727 | } else { | |||
1728 | table_width = AUTO(-2147483647 -1); | |||
1729 | auto_width = available_width - | |||
1730 | ((table->margin[LEFT] == AUTO(-2147483647 -1) ? 0 : | |||
1731 | table->margin[LEFT]) + | |||
1732 | table->border[LEFT].width + | |||
1733 | table->padding[LEFT] + | |||
1734 | table->padding[RIGHT] + | |||
1735 | table->border[RIGHT].width + | |||
1736 | (table->margin[RIGHT] == AUTO(-2147483647 -1) ? 0 : | |||
1737 | table->margin[RIGHT])); | |||
1738 | } | |||
1739 | ||||
1740 | /* Find any table height specified within CSS/HTML */ | |||
1741 | htype = css_computed_height(style, &value, &unit); | |||
1742 | if (htype == CSS_HEIGHT_SET) { | |||
1743 | if (unit == CSS_UNIT_PCT) { | |||
1744 | /* This is the minimum height for the table | |||
1745 | * (see 17.5.3) */ | |||
1746 | if (css_computed_position(table->style) == | |||
1747 | CSS_POSITION_ABSOLUTE) { | |||
1748 | /* Table is absolutely positioned */ | |||
1749 | assert(table->float_container)((table->float_container) ? (void) (0) : __assert_fail ("table->float_container" , "content/handlers/html/layout.c", 1749, __extension__ __PRETTY_FUNCTION__ )); | |||
1750 | containing_block = table->float_container; | |||
1751 | } else if (table->float_container && | |||
1752 | css_computed_position(table->style) != | |||
1753 | CSS_POSITION_ABSOLUTE && | |||
1754 | (css_computed_float(table->style) == | |||
1755 | CSS_FLOAT_LEFT || | |||
1756 | css_computed_float(table->style) == | |||
1757 | CSS_FLOAT_RIGHT)) { | |||
1758 | /* Table is a float */ | |||
1759 | 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", 1760, __extension__ __PRETTY_FUNCTION__ )) | |||
1760 | 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", 1760, __extension__ __PRETTY_FUNCTION__ )); | |||
1761 | containing_block = | |||
1762 | table->parent->parent->parent; | |||
1763 | } else if (table->parent && table->parent->type != | |||
1764 | BOX_INLINE_CONTAINER) { | |||
1765 | /* Table is a block level element */ | |||
1766 | containing_block = table->parent; | |||
1767 | } else if (table->parent && table->parent->type == | |||
1768 | BOX_INLINE_CONTAINER) { | |||
1769 | /* Table is an inline block */ | |||
1770 | assert(table->parent->parent)((table->parent->parent) ? (void) (0) : __assert_fail ( "table->parent->parent", "content/handlers/html/layout.c" , 1770, __extension__ __PRETTY_FUNCTION__)); | |||
1771 | containing_block = table->parent->parent; | |||
1772 | } | |||
1773 | ||||
1774 | if (containing_block) { | |||
1775 | css_fixed ignored = 0; | |||
1776 | ||||
1777 | htype = css_computed_height( | |||
1778 | containing_block->style, | |||
1779 | &ignored, &unit); | |||
1780 | } | |||
1781 | ||||
1782 | if (containing_block && | |||
1783 | containing_block->height != AUTO(-2147483647 -1) && | |||
1784 | (css_computed_position(table->style) == | |||
1785 | CSS_POSITION_ABSOLUTE || | |||
1786 | htype == CSS_HEIGHT_SET)) { | |||
1787 | /* Table is absolutely positioned or its | |||
1788 | * containing block has a valid specified | |||
1789 | * height. (CSS 2.1 Section 10.5) */ | |||
1790 | min_height = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)) | |||
1791 | containing_block->height)((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)); | |||
1792 | } | |||
1793 | } else { | |||
1794 | /* This is the minimum height for the table | |||
1795 | * (see 17.5.3) */ | |||
1796 | min_height = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( style, &content->unit_len_ctx , value, unit)) >> 10) | |||
1797 | style, &content->unit_len_ctx,((css_unit_len2device_px( style, &content->unit_len_ctx , value, unit)) >> 10) | |||
1798 | value, unit))((css_unit_len2device_px( style, &content->unit_len_ctx , value, unit)) >> 10); | |||
1799 | } | |||
1800 | } | |||
1801 | ||||
1802 | /* calculate width required by cells */ | |||
1803 | for (i = 0; i != columns; i++) { | |||
1804 | ||||
1805 | 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, 1818, }; 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) | |||
1806 | "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, 1818, }; 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) | |||
1807 | 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, 1818, }; 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) | |||
1808 | 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, 1818, }; 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) | |||
1809 | ((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, 1818, }; 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) | |||
1810 | "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, 1818, }; 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) | |||
1811 | "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, 1818, }; 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) | |||
1812 | "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, 1818, }; 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) | |||
1813 | "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, 1818, }; 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) | |||
1814 | "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, 1818, }; 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) | |||
1815 | })[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, 1818, }; 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) | |||
1816 | 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, 1818, }; 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) | |||
1817 | 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, 1818, }; 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) | |||
1818 | 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, 1818, }; 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); | |||
1819 | ||||
1820 | ||||
1821 | if (col[i].positioned) { | |||
1822 | positioned_columns++; | |||
1823 | continue; | |||
1824 | } else if (col[i].type == COLUMN_WIDTH_FIXED) { | |||
1825 | if (col[i].width < col[i].min) | |||
1826 | col[i].width = col[i].max = col[i].min; | |||
1827 | else | |||
1828 | col[i].min = col[i].max = col[i].width; | |||
1829 | required_width += col[i].width; | |||
1830 | } else if (col[i].type == COLUMN_WIDTH_PERCENT) { | |||
1831 | int width = col[i].width * auto_width / 100; | |||
1832 | required_width += col[i].min < width ? width : | |||
1833 | col[i].min; | |||
1834 | } else | |||
1835 | required_width += col[i].min; | |||
1836 | ||||
1837 | 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, 1837, }; nslog__log(&_nslog_ctx , "required_width %i", required_width); } } while(0); | |||
1838 | } | |||
1839 | required_width += (columns + 1 - positioned_columns) * | |||
1840 | border_spacing_h; | |||
1841 | ||||
1842 | 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, 1844, }; 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) | |||
1843 | "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, 1844, }; 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) | |||
1844 | 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, 1844, }; 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); | |||
1845 | ||||
1846 | if (auto_width < required_width) { | |||
1847 | /* table narrower than required width for columns: | |||
1848 | * treat percentage widths as maximums */ | |||
1849 | for (i = 0; i != columns; i++) { | |||
1850 | if (col[i].type == COLUMN_WIDTH_RELATIVE) | |||
1851 | continue; | |||
1852 | if (col[i].type == COLUMN_WIDTH_PERCENT) { | |||
1853 | col[i].max = auto_width * col[i].width / 100; | |||
1854 | if (col[i].max < col[i].min) | |||
1855 | col[i].max = col[i].min; | |||
1856 | } | |||
1857 | min_width += col[i].min; | |||
1858 | max_width += col[i].max; | |||
1859 | } | |||
1860 | } else { | |||
1861 | /* take percentages exactly */ | |||
1862 | for (i = 0; i != columns; i++) { | |||
1863 | if (col[i].type == COLUMN_WIDTH_RELATIVE) | |||
1864 | continue; | |||
1865 | if (col[i].type == COLUMN_WIDTH_PERCENT) { | |||
1866 | int width = auto_width * col[i].width / 100; | |||
1867 | if (width < col[i].min) | |||
1868 | width = col[i].min; | |||
1869 | col[i].min = col[i].width = col[i].max = width; | |||
1870 | col[i].type = COLUMN_WIDTH_FIXED; | |||
1871 | } | |||
1872 | min_width += col[i].min; | |||
1873 | max_width += col[i].max; | |||
1874 | } | |||
1875 | } | |||
1876 | ||||
1877 | /* allocate relative widths */ | |||
1878 | spare_width = auto_width; | |||
1879 | for (i = 0; i != columns; i++) { | |||
1880 | if (col[i].type == COLUMN_WIDTH_RELATIVE) | |||
1881 | relative_sum += col[i].width; | |||
1882 | else if (col[i].type == COLUMN_WIDTH_FIXED) | |||
1883 | spare_width -= col[i].width; | |||
1884 | else | |||
1885 | spare_width -= col[i].min; | |||
1886 | } | |||
1887 | spare_width -= (columns + 1) * border_spacing_h; | |||
1888 | if (relative_sum != 0) { | |||
1889 | if (spare_width < 0) | |||
1890 | spare_width = 0; | |||
1891 | for (i = 0; i != columns; i++) { | |||
1892 | if (col[i].type == COLUMN_WIDTH_RELATIVE) { | |||
1893 | col[i].min = ceil(col[i].max = | |||
1894 | (float) spare_width | |||
1895 | * (float) col[i].width | |||
1896 | / relative_sum); | |||
1897 | min_width += col[i].min; | |||
1898 | max_width += col[i].max; | |||
1899 | } | |||
1900 | } | |||
1901 | } | |||
1902 | min_width += (columns + 1) * border_spacing_h; | |||
1903 | max_width += (columns + 1) * border_spacing_h; | |||
1904 | ||||
1905 | if (auto_width <= min_width) { | |||
1906 | /* not enough space: minimise column widths */ | |||
1907 | for (i = 0; i < columns; i++) { | |||
1908 | col[i].width = col[i].min; | |||
1909 | } | |||
1910 | table_width = min_width; | |||
1911 | } else if (max_width <= auto_width) { | |||
1912 | /* more space than maximum width */ | |||
1913 | if (table_width == AUTO(-2147483647 -1)) { | |||
1914 | /* for auto-width tables, make columns max width */ | |||
1915 | for (i = 0; i < columns; i++) { | |||
1916 | col[i].width = col[i].max; | |||
1917 | } | |||
1918 | table_width = max_width; | |||
1919 | } else { | |||
1920 | /* for fixed-width tables, distribute the extra space | |||
1921 | * too */ | |||
1922 | unsigned int flexible_columns = 0; | |||
1923 | for (i = 0; i != columns; i++) | |||
1924 | if (col[i].type != COLUMN_WIDTH_FIXED) | |||
1925 | flexible_columns++; | |||
1926 | if (flexible_columns == 0) { | |||
1927 | int extra = (table_width - max_width) / columns; | |||
1928 | remainder = (table_width - max_width) - | |||
1929 | (extra * columns); | |||
1930 | for (i = 0; i != columns; i++) { | |||
1931 | col[i].width = col[i].max + extra; | |||
1932 | count -= remainder; | |||
1933 | if (count < 0) { | |||
1934 | col[i].width++; | |||
1935 | count += columns; | |||
1936 | } | |||
1937 | } | |||
1938 | ||||
1939 | } else { | |||
1940 | int extra = (table_width - max_width) / | |||
1941 | flexible_columns; | |||
1942 | remainder = (table_width - max_width) - | |||
1943 | (extra * flexible_columns); | |||
1944 | for (i = 0; i != columns; i++) | |||
1945 | if (col[i].type != COLUMN_WIDTH_FIXED) { | |||
1946 | col[i].width = col[i].max + | |||
1947 | extra; | |||
1948 | count -= remainder; | |||
1949 | if (count < 0) { | |||
1950 | col[i].width++; | |||
1951 | count += flexible_columns; | |||
1952 | } | |||
1953 | } | |||
1954 | } | |||
1955 | } | |||
1956 | } else { | |||
1957 | /* space between min and max: fill it exactly */ | |||
1958 | float scale = (float) (auto_width - min_width) / | |||
1959 | (float) (max_width - min_width); | |||
1960 | /* fprintf(stderr, "filling, scale %f\n", scale); */ | |||
1961 | for (i = 0; i < columns; i++) { | |||
1962 | col[i].width = col[i].min + (int) (0.5 + | |||
1963 | (col[i].max - col[i].min) * scale); | |||
1964 | } | |||
1965 | table_width = auto_width; | |||
1966 | } | |||
1967 | ||||
1968 | xs[0] = x = border_spacing_h; | |||
1969 | for (i = 0; i != columns; i++) { | |||
1970 | if (!col[i].positioned) | |||
1971 | x += col[i].width + border_spacing_h; | |||
1972 | xs[i + 1] = x; | |||
1973 | row_span[i] = 0; | |||
1974 | excess_y[i] = 0; | |||
1975 | row_span_cell[i] = 0; | |||
1976 | } | |||
1977 | ||||
1978 | /* position cells */ | |||
1979 | table_height = border_spacing_v; | |||
1980 | for (row_group = table->children; row_group; | |||
1981 | row_group = row_group->next) { | |||
1982 | int row_group_height = 0; | |||
1983 | for (row = row_group->children; row; row = row->next) { | |||
1984 | int row_height = 0; | |||
1985 | ||||
1986 | htype = css_computed_height(row->style, &value, &unit); | |||
1987 | if (htype == CSS_HEIGHT_SET && unit != CSS_UNIT_PCT) { | |||
1988 | row_height = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( row->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
1989 | row->style,((css_unit_len2device_px( row->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
1990 | &content->unit_len_ctx,((css_unit_len2device_px( row->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
1991 | value, unit))((css_unit_len2device_px( row->style, &content->unit_len_ctx , value, unit)) >> 10); | |||
1992 | } | |||
1993 | for (c = row->children; c; c = c->next) { | |||
1994 | assert(c->style)((c->style) ? (void) (0) : __assert_fail ("c->style", "content/handlers/html/layout.c" , 1994, __extension__ __PRETTY_FUNCTION__)); | |||
1995 | c->width = xs[c->start_column + c->columns] - | |||
1996 | xs[c->start_column] - | |||
1997 | border_spacing_h - | |||
1998 | c->border[LEFT].width - | |||
1999 | c->padding[LEFT] - | |||
2000 | c->padding[RIGHT] - | |||
2001 | c->border[RIGHT].width; | |||
2002 | c->float_children = 0; | |||
2003 | c->cached_place_below_level = 0; | |||
2004 | ||||
2005 | c->height = AUTO(-2147483647 -1); | |||
2006 | if (!layout_block_context(c, -1, content)) { | |||
2007 | free(col); | |||
2008 | free(excess_y); | |||
2009 | free(row_span); | |||
2010 | free(row_span_cell); | |||
2011 | free(xs); | |||
2012 | return false0; | |||
2013 | } | |||
2014 | /* warning: c->descendant_y0 and | |||
2015 | * c->descendant_y1 used as temporary storage | |||
2016 | * until after vertical alignment is complete */ | |||
2017 | c->descendant_y0 = c->height; | |||
2018 | c->descendant_y1 = c->padding[BOTTOM]; | |||
2019 | ||||
2020 | htype = css_computed_height(c->style, | |||
2021 | &value, &unit); | |||
2022 | ||||
2023 | if (htype == CSS_HEIGHT_SET && | |||
2024 | unit != CSS_UNIT_PCT) { | |||
2025 | /* some sites use height="1" or similar | |||
2026 | * to attempt to make cells as small as | |||
2027 | * possible, so treat it as a minimum */ | |||
2028 | int h = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( c->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
2029 | c->style,((css_unit_len2device_px( c->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
2030 | &content->unit_len_ctx,((css_unit_len2device_px( c->style, &content->unit_len_ctx , value, unit)) >> 10) | |||
2031 | value, unit))((css_unit_len2device_px( c->style, &content->unit_len_ctx , value, unit)) >> 10); | |||
2032 | if (c->height < h) | |||
2033 | c->height = h; | |||
2034 | } | |||
2035 | /* specified row height is treated as a minimum | |||
2036 | */ | |||
2037 | if (c->height < row_height) | |||
2038 | c->height = row_height; | |||
2039 | c->x = xs[c->start_column] + | |||
2040 | c->border[LEFT].width; | |||
2041 | c->y = c->border[TOP].width; | |||
2042 | for (i = 0; i != c->columns; i++) { | |||
2043 | row_span[c->start_column + i] = c->rows; | |||
2044 | excess_y[c->start_column + i] = | |||
2045 | c->border[TOP].width + | |||
2046 | c->padding[TOP] + | |||
2047 | c->height + | |||
2048 | c->padding[BOTTOM] + | |||
2049 | c->border[BOTTOM].width; | |||
2050 | row_span_cell[c->start_column + i] = 0; | |||
2051 | } | |||
2052 | row_span_cell[c->start_column] = c; | |||
2053 | c->padding[BOTTOM] = -border_spacing_v - | |||
2054 | c->border[TOP].width - | |||
2055 | c->padding[TOP] - | |||
2056 | c->height - | |||
2057 | c->border[BOTTOM].width; | |||
2058 | } | |||
2059 | for (i = 0; i != columns; i++) | |||
2060 | if (row_span[i] != 0) | |||
2061 | row_span[i]--; | |||
2062 | else | |||
2063 | row_span_cell[i] = 0; | |||
2064 | if (row->next || row_group->next) { | |||
2065 | /* row height is greatest excess of a cell | |||
2066 | * which ends in this row */ | |||
2067 | for (i = 0; i != columns; i++) | |||
2068 | if (row_span[i] == 0 && row_height < | |||
2069 | excess_y[i]) | |||
2070 | row_height = excess_y[i]; | |||
2071 | } else { | |||
2072 | /* except in the last row */ | |||
2073 | for (i = 0; i != columns; i++) | |||
2074 | if (row_height < excess_y[i]) | |||
2075 | row_height = excess_y[i]; | |||
2076 | } | |||
2077 | for (i = 0; i != columns; i++) { | |||
2078 | if (row_height < excess_y[i]) | |||
2079 | excess_y[i] -= row_height; | |||
2080 | else | |||
2081 | excess_y[i] = 0; | |||
2082 | if (row_span_cell[i] != 0) | |||
2083 | row_span_cell[i]->padding[BOTTOM] += | |||
2084 | row_height + | |||
2085 | border_spacing_v; | |||
2086 | } | |||
2087 | ||||
2088 | row->x = 0; | |||
2089 | row->y = row_group_height; | |||
2090 | row->width = table_width; | |||
2091 | row->height = row_height; | |||
2092 | row_group_height += row_height + border_spacing_v; | |||
2093 | } | |||
2094 | row_group->x = 0; | |||
2095 | row_group->y = table_height; | |||
2096 | row_group->width = table_width; | |||
2097 | row_group->height = row_group_height; | |||
2098 | table_height += row_group_height; | |||
2099 | } | |||
2100 | /* Table height is either the height of the contents, or specified | |||
2101 | * height if greater */ | |||
2102 | table_height = max(table_height, min_height)(((table_height)>(min_height))?(table_height):(min_height) ); | |||
2103 | /** \todo distribute spare height over the row groups / rows / cells */ | |||
2104 | ||||
2105 | /* perform vertical alignment */ | |||
2106 | for (row_group = table->children; row_group; | |||
2107 | row_group = row_group->next) { | |||
2108 | for (row = row_group->children; row; row = row->next) { | |||
2109 | for (c = row->children; c; c = c->next) { | |||
2110 | enum css_vertical_align_e vertical_align; | |||
2111 | ||||
2112 | /* unextended bottom padding is in | |||
2113 | * c->descendant_y1, and unextended | |||
2114 | * cell height is in c->descendant_y0 */ | |||
2115 | spare_height = (c->padding[BOTTOM] - | |||
2116 | c->descendant_y1) + | |||
2117 | (c->height - c->descendant_y0); | |||
2118 | ||||
2119 | vertical_align = css_computed_vertical_align( | |||
2120 | c->style, &value, &unit); | |||
2121 | ||||
2122 | switch (vertical_align) { | |||
2123 | case CSS_VERTICAL_ALIGN_SUB: | |||
2124 | case CSS_VERTICAL_ALIGN_SUPER: | |||
2125 | case CSS_VERTICAL_ALIGN_TEXT_TOP: | |||
2126 | case CSS_VERTICAL_ALIGN_TEXT_BOTTOM: | |||
2127 | case CSS_VERTICAL_ALIGN_SET: | |||
2128 | case CSS_VERTICAL_ALIGN_BASELINE: | |||
2129 | /* todo: baseline alignment, for now | |||
2130 | * just use ALIGN_TOP */ | |||
2131 | case CSS_VERTICAL_ALIGN_TOP: | |||
2132 | break; | |||
2133 | case CSS_VERTICAL_ALIGN_MIDDLE: | |||
2134 | c->padding[TOP] += spare_height / 2; | |||
2135 | c->padding[BOTTOM] -= spare_height / 2; | |||
2136 | layout_move_children(c, 0, | |||
2137 | spare_height / 2); | |||
2138 | break; | |||
2139 | case CSS_VERTICAL_ALIGN_BOTTOM: | |||
2140 | c->padding[TOP] += spare_height; | |||
2141 | c->padding[BOTTOM] -= spare_height; | |||
2142 | layout_move_children(c, 0, | |||
2143 | spare_height); | |||
2144 | break; | |||
2145 | case CSS_VERTICAL_ALIGN_INHERIT: | |||
2146 | assert(0)((0) ? (void) (0) : __assert_fail ("0", "content/handlers/html/layout.c" , 2146, __extension__ __PRETTY_FUNCTION__)); | |||
2147 | break; | |||
2148 | } | |||
2149 | } | |||
2150 | } | |||
2151 | } | |||
2152 | ||||
2153 | /* Top and bottom margins of 'auto' are set to 0. CSS2.1 10.6.3 */ | |||
2154 | if (table->margin[TOP] == AUTO(-2147483647 -1)) | |||
2155 | table->margin[TOP] = 0; | |||
2156 | if (table->margin[BOTTOM] == AUTO(-2147483647 -1)) | |||
2157 | table->margin[BOTTOM] = 0; | |||
2158 | ||||
2159 | free(col); | |||
2160 | free(excess_y); | |||
2161 | free(row_span); | |||
2162 | free(row_span_cell); | |||
2163 | free(xs); | |||
2164 | ||||
2165 | table->width = table_width; | |||
2166 | table->height = table_height; | |||
2167 | ||||
2168 | return true1; | |||
2169 | } | |||
2170 | ||||
2171 | ||||
2172 | /** | |||
2173 | * Manimpulate box height according to CSS min-height and max-height properties | |||
2174 | * | |||
2175 | * \param unit_len_ctx CSS length conversion context for document. | |||
2176 | * \param box block to modify with any min-height or max-height | |||
2177 | * \param container containing block for absolutely positioned elements, or | |||
2178 | * NULL for non absolutely positioned elements. | |||
2179 | * \return whether the height has been changed | |||
2180 | */ | |||
2181 | static bool_Bool layout_apply_minmax_height( | |||
2182 | const css_unit_ctx *unit_len_ctx, | |||
2183 | struct box *box, | |||
2184 | struct box *container) | |||
2185 | { | |||
2186 | int h; | |||
2187 | struct box *containing_block = NULL((void*)0); | |||
2188 | bool_Bool updated = false0; | |||
2189 | ||||
2190 | /* Find containing block for percentage heights */ | |||
2191 | if (box->style != NULL((void*)0) && css_computed_position(box->style) == | |||
2192 | CSS_POSITION_ABSOLUTE) { | |||
2193 | /* Box is absolutely positioned */ | |||
2194 | assert(container)((container) ? (void) (0) : __assert_fail ("container", "content/handlers/html/layout.c" , 2194, __extension__ __PRETTY_FUNCTION__)); | |||
2195 | containing_block = container; | |||
2196 | } else if (box->float_container && box->style != NULL((void*)0) && | |||
2197 | (css_computed_float(box->style) == CSS_FLOAT_LEFT || | |||
2198 | css_computed_float(box->style) == CSS_FLOAT_RIGHT)) { | |||
2199 | /* Box is a float */ | |||
2200 | 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", 2201, __extension__ __PRETTY_FUNCTION__ )) | |||
2201 | 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", 2201, __extension__ __PRETTY_FUNCTION__ )); | |||
2202 | containing_block = box->parent->parent->parent; | |||
2203 | } else if (box->parent && box->parent->type != BOX_INLINE_CONTAINER) { | |||
2204 | /* Box is a block level element */ | |||
2205 | containing_block = box->parent; | |||
2206 | } else if (box->parent && box->parent->type == BOX_INLINE_CONTAINER) { | |||
2207 | /* Box is an inline block */ | |||
2208 | assert(box->parent->parent)((box->parent->parent) ? (void) (0) : __assert_fail ("box->parent->parent" , "content/handlers/html/layout.c", 2208, __extension__ __PRETTY_FUNCTION__ )); | |||
2209 | containing_block = box->parent->parent; | |||
2210 | } | |||
2211 | ||||
2212 | if (box->style) { | |||
2213 | enum css_height_e htype = CSS_HEIGHT_AUTO; | |||
2214 | css_fixed value = 0; | |||
2215 | css_unit unit = CSS_UNIT_PX; | |||
2216 | ||||
2217 | if (containing_block) { | |||
2218 | htype = css_computed_height(containing_block->style, | |||
2219 | &value, &unit); | |||
2220 | } | |||
2221 | ||||
2222 | /* max-height */ | |||
2223 | if (css_computed_max_height(box->style, &value, &unit) == | |||
2224 | CSS_MAX_HEIGHT_SET) { | |||
2225 | if (unit == CSS_UNIT_PCT) { | |||
2226 | if (containing_block && | |||
2227 | containing_block->height != AUTO(-2147483647 -1) && | |||
2228 | (css_computed_position(box->style) == | |||
2229 | CSS_POSITION_ABSOLUTE || | |||
2230 | htype == CSS_HEIGHT_SET)) { | |||
2231 | /* Box is absolutely positioned or its | |||
2232 | * containing block has a valid | |||
2233 | * specified height. (CSS 2.1 | |||
2234 | * Section 10.5) */ | |||
2235 | h = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)) | |||
2236 | containing_block->height)((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)); | |||
2237 | if (h < box->height) { | |||
2238 | box->height = h; | |||
2239 | updated = true1; | |||
2240 | } | |||
2241 | } | |||
2242 | } else { | |||
2243 | h = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
2244 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
2245 | value, unit))((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10); | |||
2246 | if (h < box->height) { | |||
2247 | box->height = h; | |||
2248 | updated = true1; | |||
2249 | } | |||
2250 | } | |||
2251 | } | |||
2252 | ||||
2253 | /* min-height */ | |||
2254 | if (ns_computed_min_height(box->style, &value, &unit) == | |||
2255 | CSS_MIN_HEIGHT_SET) { | |||
2256 | if (unit == CSS_UNIT_PCT) { | |||
2257 | if (containing_block && | |||
2258 | containing_block->height != AUTO(-2147483647 -1) && | |||
2259 | (css_computed_position(box->style) == | |||
2260 | CSS_POSITION_ABSOLUTE || | |||
2261 | htype == CSS_HEIGHT_SET)) { | |||
2262 | /* Box is absolutely positioned or its | |||
2263 | * containing block has a valid | |||
2264 | * specified height. (CSS 2.1 | |||
2265 | * Section 10.5) */ | |||
2266 | h = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)) | |||
2267 | containing_block->height)((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)); | |||
2268 | if (h > box->height) { | |||
2269 | box->height = h; | |||
2270 | updated = true1; | |||
2271 | } | |||
2272 | } | |||
2273 | } else { | |||
2274 | h = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
2275 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
2276 | value, unit))((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10); | |||
2277 | if (h > box->height) { | |||
2278 | box->height = h; | |||
2279 | updated = true1; | |||
2280 | } | |||
2281 | } | |||
2282 | } | |||
2283 | } | |||
2284 | return updated; | |||
2285 | } | |||
2286 | ||||
2287 | ||||
2288 | /** | |||
2289 | * Layout a block which contains an object. | |||
2290 | * | |||
2291 | * \param block box of type BLOCK, INLINE_BLOCK, TABLE, or TABLE_CELL | |||
2292 | * \return true on success, false on memory exhaustion | |||
2293 | */ | |||
2294 | static bool_Bool layout_block_object(struct box *block) | |||
2295 | { | |||
2296 | assert(block)((block) ? (void) (0) : __assert_fail ("block", "content/handlers/html/layout.c" , 2296, __extension__ __PRETTY_FUNCTION__)); | |||
2297 | 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", 2302, __extension__ __PRETTY_FUNCTION__ )) | |||
2298 | 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", 2302, __extension__ __PRETTY_FUNCTION__ )) | |||
2299 | 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", 2302, __extension__ __PRETTY_FUNCTION__ )) | |||
2300 | 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", 2302, __extension__ __PRETTY_FUNCTION__ )) | |||
2301 | 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", 2302, __extension__ __PRETTY_FUNCTION__ )) | |||
2302 | 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", 2302, __extension__ __PRETTY_FUNCTION__ )); | |||
2303 | assert(block->object)((block->object) ? (void) (0) : __assert_fail ("block->object" , "content/handlers/html/layout.c", 2303, __extension__ __PRETTY_FUNCTION__ )); | |||
2304 | ||||
2305 | 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, 2306, }; nslog__log(&_nslog_ctx , "block %p, object %p, width %i", block, hlcache_handle_get_url (block->object), block->width); } } while(0) | |||
2306 | 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, 2306, }; nslog__log(&_nslog_ctx , "block %p, object %p, width %i", block, hlcache_handle_get_url (block->object), block->width); } } while(0); | |||
2307 | ||||
2308 | if (content_can_reformat(block->object)) { | |||
2309 | content_reformat(block->object, false0, block->width, 1); | |||
2310 | } else { | |||
2311 | /* Non-HTML objects */ | |||
2312 | /* this case handled already in | |||
2313 | * layout_block_find_dimensions() */ | |||
2314 | } | |||
2315 | ||||
2316 | return true1; | |||
2317 | } | |||
2318 | ||||
2319 | ||||
2320 | /** | |||
2321 | * Insert a float into a container. | |||
2322 | * | |||
2323 | * \param cont block formatting context block, used to contain float | |||
2324 | * \param b box to add to float | |||
2325 | * | |||
2326 | * This sorts floats in order of descending bottom edges. | |||
2327 | */ | |||
2328 | static void add_float_to_container(struct box *cont, struct box *b) | |||
2329 | { | |||
2330 | struct box *box = cont->float_children; | |||
2331 | int b_bottom = b->y + b->height; | |||
2332 | ||||
2333 | 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", 2333, __extension__ __PRETTY_FUNCTION__ )); | |||
2334 | ||||
2335 | if (box == NULL((void*)0)) { | |||
2336 | /* No other float children */ | |||
2337 | b->next_float = NULL((void*)0); | |||
2338 | cont->float_children = b; | |||
2339 | return; | |||
2340 | } else if (b_bottom >= box->y + box->height) { | |||
2341 | /* Goes at start of list */ | |||
2342 | b->next_float = cont->float_children; | |||
2343 | cont->float_children = b; | |||
2344 | } else { | |||
2345 | struct box *prev = NULL((void*)0); | |||
2346 | while (box != NULL((void*)0) && b_bottom < box->y + box->height) { | |||
2347 | prev = box; | |||
2348 | box = box->next_float; | |||
2349 | } | |||
2350 | if (prev != NULL((void*)0)) { | |||
2351 | b->next_float = prev->next_float; | |||
2352 | prev->next_float = b; | |||
2353 | } | |||
2354 | } | |||
2355 | } | |||
2356 | ||||
2357 | ||||
2358 | /** | |||
2359 | * Split a text box. | |||
2360 | * | |||
2361 | * \param content memory pool for any new boxes | |||
2362 | * \param fstyle style for text in text box | |||
2363 | * \param split_box box with text to split | |||
2364 | * \param new_length new length for text in split_box, after splitting | |||
2365 | * \param new_width new width for text in split_box, after splitting | |||
2366 | * \return true on success, false on memory exhaustion | |||
2367 | * | |||
2368 | * A new box is created and inserted into the box tree after split_box, | |||
2369 | * containing the text after new_length excluding the initial space character. | |||
2370 | */ | |||
2371 | static bool_Bool | |||
2372 | layout_text_box_split(html_content *content, | |||
2373 | plot_font_style_t *fstyle, | |||
2374 | struct box *split_box, | |||
2375 | size_t new_length, | |||
2376 | int new_width) | |||
2377 | { | |||
2378 | int space_width = split_box->space; | |||
2379 | struct box *c2; | |||
2380 | const struct gui_layout_table *font_func = content->font_func; | |||
2381 | bool_Bool space = (split_box->text[new_length] == ' '); | |||
2382 | int used_length = new_length + (space ? 1 : 0); | |||
2383 | ||||
2384 | if ((space && space_width == 0) || space_width == UNKNOWN_WIDTH2147483647) { | |||
2385 | /* We're need to add a space, and we don't know how big | |||
2386 | * it's to be, OR we have a space of unknown width anyway; | |||
2387 | * Calculate space width */ | |||
2388 | font_func->width(fstyle, " ", 1, &space_width); | |||
2389 | } | |||
2390 | ||||
2391 | if (split_box->space == UNKNOWN_WIDTH2147483647) | |||
2392 | split_box->space = space_width; | |||
2393 | if (!space) | |||
2394 | space_width = 0; | |||
2395 | ||||
2396 | /* Create clone of split_box, c2 */ | |||
2397 | c2 = talloc_memdup(content->bctx, split_box, sizeof *c2)_talloc_memdup(content->bctx, split_box, sizeof *c2, "content/handlers/html/layout.c" ":" "2397"); | |||
2398 | if (!c2) | |||
2399 | return false0; | |||
2400 | c2->flags |= CLONE; | |||
2401 | ||||
2402 | /* Set remaining text in c2 */ | |||
2403 | c2->text += used_length; | |||
2404 | ||||
2405 | /* Set c2 according to the remaining text */ | |||
2406 | c2->width -= new_width + space_width; | |||
2407 | c2->flags &= ~MEASURED; /* width has been estimated */ | |||
2408 | c2->length = split_box->length - used_length; | |||
2409 | ||||
2410 | /* Update split_box for its reduced text */ | |||
2411 | split_box->width = new_width; | |||
2412 | split_box->flags |= MEASURED; | |||
2413 | split_box->length = new_length; | |||
2414 | split_box->space = space_width; | |||
2415 | ||||
2416 | /* Insert c2 into box list */ | |||
2417 | c2->next = split_box->next; | |||
2418 | split_box->next = c2; | |||
2419 | c2->prev = split_box; | |||
2420 | if (c2->next) | |||
2421 | c2->next->prev = c2; | |||
2422 | else | |||
2423 | c2->parent->last = c2; | |||
2424 | ||||
2425 | 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, 2430, }; nslog__log(&_nslog_ctx , "split_box %p len: %" "zu" " \"%.*s\"", split_box, split_box ->length, (int)split_box->length, split_box->text); } } while(0) | |||
2426 | "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, 2430, }; nslog__log(&_nslog_ctx , "split_box %p len: %" "zu" " \"%.*s\"", split_box, split_box ->length, (int)split_box->length, split_box->text); } } while(0) | |||
2427 | 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, 2430, }; nslog__log(&_nslog_ctx , "split_box %p len: %" "zu" " \"%.*s\"", split_box, split_box ->length, (int)split_box->length, split_box->text); } } while(0) | |||
2428 | 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, 2430, }; nslog__log(&_nslog_ctx , "split_box %p len: %" "zu" " \"%.*s\"", split_box, split_box ->length, (int)split_box->length, split_box->text); } } while(0) | |||
2429 | (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, 2430, }; nslog__log(&_nslog_ctx , "split_box %p len: %" "zu" " \"%.*s\"", split_box, split_box ->length, (int)split_box->length, split_box->text); } } while(0) | |||
2430 | 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, 2430, }; nslog__log(&_nslog_ctx , "split_box %p len: %" "zu" " \"%.*s\"", split_box, split_box ->length, (int)split_box->length, split_box->text); } } while(0); | |||
2431 | 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, 2436, }; nslog__log(&_nslog_ctx , " new_box %p len: %" "zu" " \"%.*s\"", c2, c2->length, ( int)c2->length, c2->text); } } while(0) | |||
2432 | " 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, 2436, }; nslog__log(&_nslog_ctx , " new_box %p len: %" "zu" " \"%.*s\"", c2, c2->length, ( int)c2->length, c2->text); } } while(0) | |||
2433 | 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, 2436, }; nslog__log(&_nslog_ctx , " new_box %p len: %" "zu" " \"%.*s\"", c2, c2->length, ( int)c2->length, c2->text); } } while(0) | |||
2434 | 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, 2436, }; nslog__log(&_nslog_ctx , " new_box %p len: %" "zu" " \"%.*s\"", c2, c2->length, ( int)c2->length, c2->text); } } while(0) | |||
2435 | (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, 2436, }; nslog__log(&_nslog_ctx , " new_box %p len: %" "zu" " \"%.*s\"", c2, c2->length, ( int)c2->length, c2->text); } } while(0) | |||
2436 | 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, 2436, }; nslog__log(&_nslog_ctx , " new_box %p len: %" "zu" " \"%.*s\"", c2, c2->length, ( int)c2->length, c2->text); } } while(0); | |||
2437 | ||||
2438 | return true1; | |||
2439 | } | |||
2440 | ||||
2441 | ||||
2442 | /** | |||
2443 | * Compute dimensions of box, margins, paddings, and borders for a floating | |||
2444 | * element using shrink-to-fit. Also used for inline-blocks. | |||
2445 | * | |||
2446 | * \param unit_len_ctx CSS length conversion context for document. | |||
2447 | * \param available_width Max width available in pixels | |||
2448 | * \param style Box's style | |||
2449 | * \param box Box for which to find dimensions | |||
2450 | * Box margins, borders, paddings, width and | |||
2451 | * height are updated. | |||
2452 | */ | |||
2453 | static void | |||
2454 | layout_float_find_dimensions( | |||
2455 | const css_unit_ctx *unit_len_ctx, | |||
2456 | int available_width, | |||
2457 | const css_computed_style *style, | |||
2458 | struct box *box) | |||
2459 | { | |||
2460 | int width, height, max_width, min_width, max_height, min_height; | |||
2461 | int *margin = box->margin; | |||
2462 | int *padding = box->padding; | |||
2463 | struct box_border *border = box->border; | |||
2464 | enum css_overflow_e overflow_x = css_computed_overflow_x(style); | |||
2465 | enum css_overflow_e overflow_y = css_computed_overflow_y(style); | |||
2466 | int scrollbar_width_x = | |||
2467 | (overflow_x == CSS_OVERFLOW_SCROLL || | |||
2468 | overflow_x == CSS_OVERFLOW_AUTO) ? | |||
2469 | SCROLLBAR_WIDTH16 : 0; | |||
2470 | int scrollbar_width_y = | |||
2471 | (overflow_y == CSS_OVERFLOW_SCROLL || | |||
2472 | overflow_y == CSS_OVERFLOW_AUTO) ? | |||
2473 | SCROLLBAR_WIDTH16 : 0; | |||
2474 | ||||
2475 | layout_find_dimensions(unit_len_ctx, available_width, -1, box, style, | |||
2476 | &width, &height, &max_width, &min_width, | |||
2477 | &max_height, &min_height, margin, padding, border); | |||
2478 | ||||
2479 | if (margin[LEFT] == AUTO(-2147483647 -1)) | |||
2480 | margin[LEFT] = 0; | |||
2481 | if (margin[RIGHT] == AUTO(-2147483647 -1)) | |||
2482 | margin[RIGHT] = 0; | |||
2483 | ||||
2484 | if (box->gadget == NULL((void*)0)) { | |||
2485 | padding[RIGHT] += scrollbar_width_y; | |||
2486 | padding[BOTTOM] += scrollbar_width_x; | |||
2487 | } | |||
2488 | ||||
2489 | if (box->object && !(box->flags & REPLACE_DIM) && | |||
2490 | content_get_type(box->object) != CONTENT_HTML) { | |||
2491 | /* Floating replaced element, with intrinsic width or height. | |||
2492 | * See 10.3.6 and 10.6.2 */ | |||
2493 | layout_get_object_dimensions(box, &width, &height, | |||
2494 | min_width, max_width, min_height, max_height); | |||
2495 | } else if (box->gadget && (box->gadget->type == GADGET_TEXTBOX || | |||
2496 | box->gadget->type == GADGET_PASSWORD || | |||
2497 | box->gadget->type == GADGET_FILE || | |||
2498 | box->gadget->type == GADGET_TEXTAREA)) { | |||
2499 | css_fixed size = 0; | |||
2500 | css_unit unit = CSS_UNIT_EM; | |||
2501 | ||||
2502 | /* Give sensible dimensions to gadgets, with auto width/height, | |||
2503 | * that don't shrink to fit contained text. */ | |||
2504 | assert(box->style)((box->style) ? (void) (0) : __assert_fail ("box->style" , "content/handlers/html/layout.c", 2504, __extension__ __PRETTY_FUNCTION__ )); | |||
2505 | ||||
2506 | if (box->gadget->type == GADGET_TEXTBOX || | |||
2507 | box->gadget->type == GADGET_PASSWORD || | |||
2508 | box->gadget->type == GADGET_FILE) { | |||
2509 | if (width == AUTO(-2147483647 -1)) { | |||
2510 | size = INTTOFIX(10)(css_int_to_fixed(10)); | |||
2511 | width = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
2512 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
2513 | size, unit))((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10); | |||
2514 | } | |||
2515 | if (box->gadget->type == GADGET_FILE && | |||
2516 | height == AUTO(-2147483647 -1)) { | |||
2517 | size = FLTTOFIX(1.5)((css_fixed) ((1.5) * (float) (1 << 10))); | |||
2518 | height = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
2519 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
2520 | size, unit))((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10); | |||
2521 | } | |||
2522 | } | |||
2523 | if (box->gadget->type == GADGET_TEXTAREA) { | |||
2524 | if (width == AUTO(-2147483647 -1)) { | |||
2525 | size = INTTOFIX(10)(css_int_to_fixed(10)); | |||
2526 | width = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
2527 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
2528 | size, unit))((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10); | |||
2529 | } | |||
2530 | if (height == AUTO(-2147483647 -1)) { | |||
2531 | size = INTTOFIX(4)(css_int_to_fixed(4)); | |||
2532 | height = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
2533 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10) | |||
2534 | size, unit))((css_unit_len2device_px( box->style, unit_len_ctx, size, unit )) >> 10); | |||
2535 | } | |||
2536 | } | |||
2537 | } else if (width == AUTO(-2147483647 -1)) { | |||
2538 | /* CSS 2.1 section 10.3.5 */ | |||
2539 | 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)) | |||
2540 | 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)); | |||
2541 | ||||
2542 | /* width includes margin, borders and padding */ | |||
2543 | if (width == available_width) { | |||
2544 | width -= box->margin[LEFT] + box->border[LEFT].width + | |||
2545 | box->padding[LEFT] + | |||
2546 | box->padding[RIGHT] + | |||
2547 | box->border[RIGHT].width + | |||
2548 | box->margin[RIGHT]; | |||
2549 | } else { | |||
2550 | /* width was obtained from a min_width or max_width | |||
2551 | * value, so need to use the same method for calculating | |||
2552 | * mbp as was used in layout_minmax_block() */ | |||
2553 | int fixed = 0; | |||
2554 | float frac = 0; | |||
2555 | calculate_mbp_width(unit_len_ctx, box->style, LEFT, | |||
2556 | true1, true1, true1, &fixed, &frac); | |||
2557 | calculate_mbp_width(unit_len_ctx, box->style, RIGHT, | |||
2558 | true1, true1, true1, &fixed, &frac); | |||
2559 | if (fixed < 0) | |||
2560 | fixed = 0; | |||
2561 | ||||
2562 | width -= fixed; | |||
2563 | } | |||
2564 | ||||
2565 | if (max_width >= 0 && width > max_width) width = max_width; | |||
2566 | if (min_width > 0 && width < min_width) width = min_width; | |||
2567 | ||||
2568 | } else { | |||
2569 | if (max_width >= 0 && width > max_width) width = max_width; | |||
2570 | if (min_width > 0 && width < min_width) width = min_width; | |||
2571 | width -= scrollbar_width_y; | |||
2572 | } | |||
2573 | ||||
2574 | box->width = width; | |||
2575 | box->height = height; | |||
2576 | ||||
2577 | if (margin[TOP] == AUTO(-2147483647 -1)) | |||
2578 | margin[TOP] = 0; | |||
2579 | if (margin[BOTTOM] == AUTO(-2147483647 -1)) | |||
2580 | margin[BOTTOM] = 0; | |||
2581 | } | |||
2582 | ||||
2583 | ||||
2584 | /** | |||
2585 | * Layout the contents of a float or inline block. | |||
2586 | * | |||
2587 | * \param b float or inline block box | |||
2588 | * \param width available width | |||
2589 | * \param content memory pool for any new boxes | |||
2590 | * \return true on success, false on memory exhaustion | |||
2591 | */ | |||
2592 | static bool_Bool layout_float(struct box *b, int width, html_content *content) | |||
2593 | { | |||
2594 | 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", 2598, __extension__ __PRETTY_FUNCTION__ )) | |||
2595 | 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", 2598, __extension__ __PRETTY_FUNCTION__ )) | |||
2596 | 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", 2598, __extension__ __PRETTY_FUNCTION__ )) | |||
2597 | 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", 2598, __extension__ __PRETTY_FUNCTION__ )) | |||
2598 | 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", 2598, __extension__ __PRETTY_FUNCTION__ )); | |||
2599 | layout_float_find_dimensions(&content->unit_len_ctx, width, b->style, b); | |||
2600 | if (b->type == BOX_TABLE || b->type == BOX_INLINE_FLEX) { | |||
2601 | if (b->type == BOX_TABLE) { | |||
2602 | if (!layout_table(b, width, content)) | |||
2603 | return false0; | |||
2604 | } else { | |||
2605 | if (!layout_flex(b, width, content)) | |||
2606 | return false0; | |||
2607 | } | |||
2608 | if (b->margin[LEFT] == AUTO(-2147483647 -1)) | |||
2609 | b->margin[LEFT] = 0; | |||
2610 | if (b->margin[RIGHT] == AUTO(-2147483647 -1)) | |||
2611 | b->margin[RIGHT] = 0; | |||
2612 | if (b->margin[TOP] == AUTO(-2147483647 -1)) | |||
2613 | b->margin[TOP] = 0; | |||
2614 | if (b->margin[BOTTOM] == AUTO(-2147483647 -1)) | |||
2615 | b->margin[BOTTOM] = 0; | |||
2616 | } else { | |||
2617 | return layout_block_context(b, -1, content); | |||
2618 | } | |||
2619 | return true1; | |||
2620 | } | |||
2621 | ||||
2622 | ||||
2623 | /** | |||
2624 | * Position a float in the first available space. | |||
2625 | * | |||
2626 | * \param c float box to position | |||
2627 | * \param width available width | |||
2628 | * \param cx x coordinate relative to cont to place float right of | |||
2629 | * \param y y coordinate relative to cont to place float below | |||
2630 | * \param cont ancestor box which defines horizontal space, for floats | |||
2631 | */ | |||
2632 | static void | |||
2633 | place_float_below(struct box *c, int width, int cx, int y, struct box *cont) | |||
2634 | { | |||
2635 | int x0, x1, yy; | |||
2636 | struct box *left; | |||
2637 | struct box *right; | |||
2638 | ||||
2639 | yy = y > cont->cached_place_below_level ? | |||
2640 | y : cont->cached_place_below_level; | |||
2641 | ||||
2642 | 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, 2644, }; nslog__log(&_nslog_ctx , "c %p, width %i, cx %i, y %i, cont %p", c, width, cx, y, cont ); } } while(0) | |||
2643 | "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, 2644, }; nslog__log(&_nslog_ctx , "c %p, width %i, cx %i, y %i, cont %p", c, width, cx, y, cont ); } } while(0) | |||
2644 | 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, 2644, }; nslog__log(&_nslog_ctx , "c %p, width %i, cx %i, y %i, cont %p", c, width, cx, y, cont ); } } while(0); | |||
2645 | ||||
2646 | do { | |||
2647 | y = yy; | |||
2648 | x0 = cx; | |||
2649 | x1 = cx + width; | |||
2650 | find_sides(cont->float_children, y, y + c->height, &x0, &x1, | |||
2651 | &left, &right); | |||
2652 | if (left != 0 && right != 0) { | |||
2653 | yy = (left->y + left->height < | |||
2654 | right->y + right->height ? | |||
2655 | left->y + left->height : | |||
2656 | right->y + right->height); | |||
2657 | } else if (left == 0 && right != 0) { | |||
2658 | yy = right->y + right->height; | |||
2659 | } else if (left != 0 && right == 0) { | |||
2660 | yy = left->y + left->height; | |||
2661 | } | |||
2662 | } while ((left != 0 || right != 0) && (c->width > x1 - x0)); | |||
2663 | ||||
2664 | if (c->type == BOX_FLOAT_LEFT) { | |||
2665 | c->x = x0; | |||
2666 | } else { | |||
2667 | c->x = x1 - c->width; | |||
2668 | } | |||
2669 | c->y = y; | |||
2670 | cont->cached_place_below_level = y; | |||
2671 | } | |||
2672 | ||||
2673 | ||||
2674 | /** | |||
2675 | * Calculate line height from a style. | |||
2676 | */ | |||
2677 | static int line_height( | |||
2678 | const css_unit_ctx *unit_len_ctx, | |||
2679 | const css_computed_style *style) | |||
2680 | { | |||
2681 | enum css_line_height_e lhtype; | |||
2682 | css_fixed lhvalue = 0; | |||
2683 | css_unit lhunit = CSS_UNIT_PX; | |||
2684 | css_fixed line_height; | |||
2685 | ||||
2686 | assert(style)((style) ? (void) (0) : __assert_fail ("style", "content/handlers/html/layout.c" , 2686, __extension__ __PRETTY_FUNCTION__)); | |||
2687 | ||||
2688 | lhtype = css_computed_line_height(style, &lhvalue, &lhunit); | |||
2689 | if (lhtype == CSS_LINE_HEIGHT_NORMAL) { | |||
2690 | /* Normal => use a constant of 1.3 * font-size */ | |||
2691 | lhvalue = FLTTOFIX(1.3)((css_fixed) ((1.3) * (float) (1 << 10))); | |||
2692 | lhtype = CSS_LINE_HEIGHT_NUMBER; | |||
2693 | } | |||
2694 | ||||
2695 | if (lhtype == CSS_LINE_HEIGHT_NUMBER || | |||
2696 | lhunit == CSS_UNIT_PCT) { | |||
2697 | line_height = css_unit_len2device_px(style, unit_len_ctx, | |||
2698 | lhvalue, CSS_UNIT_EM); | |||
2699 | ||||
2700 | if (lhtype != CSS_LINE_HEIGHT_NUMBER) | |||
2701 | line_height = FDIV(line_height, F_100)(css_divide_fixed((line_height), (0x00019000))); | |||
2702 | } else { | |||
2703 | assert(lhunit != CSS_UNIT_PCT)((lhunit != CSS_UNIT_PCT) ? (void) (0) : __assert_fail ("lhunit != CSS_UNIT_PCT" , "content/handlers/html/layout.c", 2703, __extension__ __PRETTY_FUNCTION__ )); | |||
2704 | ||||
2705 | line_height = css_unit_len2device_px(style, unit_len_ctx, | |||
2706 | lhvalue, lhunit); | |||
2707 | } | |||
2708 | ||||
2709 | return FIXTOINT(line_height)((line_height) >> 10); | |||
2710 | } | |||
2711 | ||||
2712 | ||||
2713 | /** | |||
2714 | * Position a line of boxes in inline formatting context. | |||
2715 | * | |||
2716 | * \param first box at start of line | |||
2717 | * \param width available width on input, updated with actual width on output | |||
2718 | * (may be incorrect if the line gets split?) | |||
2719 | * \param y coordinate of top of line, updated on exit to bottom | |||
2720 | * \param cx coordinate of left of line relative to cont | |||
2721 | * \param cy coordinate of top of line relative to cont | |||
2722 | * \param cont ancestor box which defines horizontal space, for floats | |||
2723 | * \param indent apply any first-line indent | |||
2724 | * \param has_text_children at least one TEXT in the inline_container | |||
2725 | * \param next_box updated to first box for next line, or 0 at end | |||
2726 | * \param content memory pool for any new boxes | |||
2727 | * \return true on success, false on memory exhaustion | |||
2728 | */ | |||
2729 | static bool_Bool | |||
2730 | layout_line(struct box *first, | |||
2731 | int *width, | |||
2732 | int *y, | |||
2733 | int cx, | |||
2734 | int cy, | |||
2735 | struct box *cont, | |||
2736 | bool_Bool indent, | |||
2737 | bool_Bool has_text_children, | |||
2738 | html_content *content, | |||
2739 | struct box **next_box) | |||
2740 | { | |||
2741 | int height, used_height; | |||
2742 | int x0 = 0; | |||
2743 | int x1 = *width; | |||
2744 | int x, h, x_previous; | |||
2745 | int fy = cy; | |||
2746 | struct box *left; | |||
2747 | struct box *right; | |||
2748 | struct box *b; | |||
2749 | struct box *split_box = 0; | |||
2750 | struct box *d; | |||
2751 | struct box *br_box = 0; | |||
2752 | bool_Bool move_y = false0; | |||
2753 | bool_Bool place_below = false0; | |||
2754 | int space_before = 0, space_after = 0; | |||
2755 | unsigned int inline_count = 0; | |||
2756 | unsigned int i; | |||
2757 | const struct gui_layout_table *font_func = content->font_func; | |||
2758 | plot_font_style_t fstyle; | |||
2759 | ||||
2760 | 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, 2768, }; 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) | |||
2761 | "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, 2768, }; 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) | |||
2762 | 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, 2768, }; 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) | |||
2763 | (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, 2768, }; 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) | |||
2764 | 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, 2768, }; 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) | |||
2765 | *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, 2768, }; 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) | |||
2766 | *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, 2768, }; 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) | |||
2767 | 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, 2768, }; 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) | |||
2768 | 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, 2768, }; 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); | |||
2769 | ||||
2770 | /* find sides at top of line */ | |||
2771 | x0 += cx; | |||
2772 | x1 += cx; | |||
2773 | find_sides(cont->float_children, cy, cy, &x0, &x1, &left, &right); | |||
2774 | x0 -= cx; | |||
2775 | x1 -= cx; | |||
2776 | ||||
2777 | if (indent) | |||
2778 | x0 += layout_text_indent(&content->unit_len_ctx, | |||
2779 | first->parent->parent->style, *width); | |||
2780 | ||||
2781 | if (x1 < x0) | |||
2782 | x1 = x0; | |||
2783 | ||||
2784 | /* get minimum line height from containing block. | |||
2785 | * this is the line-height if there are text children and also in the | |||
2786 | * case of an initially empty text input */ | |||
2787 | if (has_text_children || first->parent->parent->gadget) | |||
2788 | used_height = height = line_height(&content->unit_len_ctx, | |||
2789 | first->parent->parent->style); | |||
2790 | else | |||
2791 | /* inline containers with no text are usually for layout and | |||
2792 | * look better with no minimum line-height */ | |||
2793 | used_height = height = 0; | |||
2794 | ||||
2795 | /* pass 1: find height of line assuming sides at top of line: loop | |||
2796 | * body executed at least once | |||
2797 | * keep in sync with the loop in layout_minmax_line() */ | |||
2798 | ||||
2799 | 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, 2799, }; nslog__log(&_nslog_ctx , "x0 %i, x1 %i, x1 - x0 %i", x0, x1, x1 - x0); } } while(0); | |||
2800 | ||||
2801 | ||||
2802 | for (x = 0, b = first; x <= x1 - x0 && b != 0; b = b->next) { | |||
2803 | int min_width, max_width, min_height, max_height; | |||
2804 | ||||
2805 | 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" , 2805, __extension__ __PRETTY_FUNCTION__)); | |||
2806 | ||||
2807 | 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, 2807, }; nslog__log(&_nslog_ctx , "pass 1: b %p, x %i", b, x); } } while(0); | |||
2808 | ||||
2809 | if (b->type == BOX_BR) | |||
2810 | break; | |||
2811 | ||||
2812 | if (lh__box_is_float_box(b)) | |||
2813 | continue; | |||
2814 | if (b->type == BOX_INLINE_BLOCK && | |||
2815 | (css_computed_position(b->style) == | |||
2816 | CSS_POSITION_ABSOLUTE || | |||
2817 | css_computed_position(b->style) == | |||
2818 | CSS_POSITION_FIXED)) | |||
2819 | continue; | |||
2820 | ||||
2821 | assert(b->style != NULL)((b->style != ((void*)0)) ? (void) (0) : __assert_fail ("b->style != NULL" , "content/handlers/html/layout.c", 2821, __extension__ __PRETTY_FUNCTION__ )); | |||
2822 | font_plot_style_from_css(&content->unit_len_ctx, b->style, &fstyle); | |||
2823 | ||||
2824 | x += space_after; | |||
2825 | ||||
2826 | if (b->type == BOX_INLINE_BLOCK || | |||
2827 | b->type == BOX_INLINE_FLEX) { | |||
2828 | if (b->max_width != UNKNOWN_WIDTH2147483647) | |||
2829 | if (!layout_float(b, *width, content)) | |||
2830 | return false0; | |||
2831 | h = b->border[TOP].width + b->padding[TOP] + b->height + | |||
2832 | b->padding[BOTTOM] + | |||
2833 | b->border[BOTTOM].width; | |||
2834 | if (height < h) | |||
2835 | height = h; | |||
2836 | x += b->margin[LEFT] + b->border[LEFT].width + | |||
2837 | b->padding[LEFT] + b->width + | |||
2838 | b->padding[RIGHT] + | |||
2839 | b->border[RIGHT].width + | |||
2840 | b->margin[RIGHT]; | |||
2841 | space_after = 0; | |||
2842 | continue; | |||
2843 | } | |||
2844 | ||||
2845 | if (b->type == BOX_INLINE) { | |||
2846 | /* calculate borders, margins, and padding */ | |||
2847 | layout_find_dimensions(&content->unit_len_ctx, | |||
2848 | *width, -1, b, b->style, 0, 0, 0, 0, | |||
2849 | 0, 0, b->margin, b->padding, b->border); | |||
2850 | for (i = 0; i != 4; i++) | |||
2851 | if (b->margin[i] == AUTO(-2147483647 -1)) | |||
2852 | b->margin[i] = 0; | |||
2853 | x += b->margin[LEFT] + b->border[LEFT].width + | |||
2854 | b->padding[LEFT]; | |||
2855 | if (b->inline_end) { | |||
2856 | b->inline_end->margin[RIGHT] = b->margin[RIGHT]; | |||
2857 | b->inline_end->padding[RIGHT] = | |||
2858 | b->padding[RIGHT]; | |||
2859 | b->inline_end->border[RIGHT] = | |||
2860 | b->border[RIGHT]; | |||
2861 | } else { | |||
2862 | x += b->padding[RIGHT] + | |||
2863 | b->border[RIGHT].width + | |||
2864 | b->margin[RIGHT]; | |||
2865 | } | |||
2866 | } else if (b->type == BOX_INLINE_END) { | |||
2867 | b->width = 0; | |||
2868 | if (b->space == UNKNOWN_WIDTH2147483647) { | |||
2869 | font_func->width(&fstyle, " ", 1, &b->space); | |||
2870 | /** \todo handle errors */ | |||
2871 | } | |||
2872 | space_after = b->space; | |||
2873 | ||||
2874 | x += b->padding[RIGHT] + b->border[RIGHT].width + | |||
2875 | b->margin[RIGHT]; | |||
2876 | continue; | |||
2877 | } | |||
2878 | ||||
2879 | if (lh__box_is_replace(b) == false0) { | |||
2880 | /* inline non-replaced, 10.3.1 and 10.6.1 */ | |||
2881 | b->height = line_height(&content->unit_len_ctx, | |||
2882 | b->style ? b->style : | |||
2883 | b->parent->parent->style); | |||
2884 | if (height < b->height) | |||
2885 | height = b->height; | |||
2886 | ||||
2887 | if (!b->text) { | |||
2888 | b->width = 0; | |||
2889 | space_after = 0; | |||
2890 | continue; | |||
2891 | } | |||
2892 | ||||
2893 | if (b->width == UNKNOWN_WIDTH2147483647) { | |||
2894 | /** \todo handle errors */ | |||
2895 | ||||
2896 | /* If it's a select element, we must use the | |||
2897 | * width of the widest option text */ | |||
2898 | if (b->parent->parent->gadget && | |||
2899 | b->parent->parent->gadget->type | |||
2900 | == GADGET_SELECT) { | |||
2901 | int opt_maxwidth = 0; | |||
2902 | struct form_option *o; | |||
2903 | ||||
2904 | for (o = b->parent->parent->gadget-> | |||
2905 | data.select.items; o; | |||
2906 | o = o->next) { | |||
2907 | int opt_width; | |||
2908 | font_func->width(&fstyle, | |||
2909 | o->text, | |||
2910 | strlen(o->text), | |||
2911 | &opt_width); | |||
2912 | ||||
2913 | if (opt_maxwidth < opt_width) | |||
2914 | opt_maxwidth =opt_width; | |||
2915 | } | |||
2916 | b->width = opt_maxwidth; | |||
2917 | if (nsoption_bool(core_select_menu)(nsoptions[NSOPTION_core_select_menu].value.b)) | |||
2918 | b->width += SCROLLBAR_WIDTH16; | |||
2919 | } else { | |||
2920 | font_func->width(&fstyle, b->text, | |||
2921 | b->length, &b->width); | |||
2922 | b->flags |= MEASURED; | |||
2923 | } | |||
2924 | } | |||
2925 | ||||
2926 | /* If the current text has not been measured (i.e. its | |||
2927 | * width was estimated after splitting), and it fits on | |||
2928 | * the line, measure it properly, so next box is placed | |||
2929 | * correctly. */ | |||
2930 | if (b->text && (x + b->width < x1 - x0) && | |||
2931 | !(b->flags & MEASURED) && | |||
2932 | b->next) { | |||
2933 | font_func->width(&fstyle, b->text, | |||
2934 | b->length, &b->width); | |||
2935 | b->flags |= MEASURED; | |||
2936 | } | |||
2937 | ||||
2938 | x += b->width; | |||
2939 | if (b->space == UNKNOWN_WIDTH2147483647) { | |||
2940 | font_func->width(&fstyle, " ", 1, &b->space); | |||
2941 | /** \todo handle errors */ | |||
2942 | } | |||
2943 | space_after = b->space; | |||
2944 | continue; | |||
2945 | } | |||
2946 | ||||
2947 | space_after = 0; | |||
2948 | ||||
2949 | /* inline replaced, 10.3.2 and 10.6.2 */ | |||
2950 | assert(b->style)((b->style) ? (void) (0) : __assert_fail ("b->style", "content/handlers/html/layout.c" , 2950, __extension__ __PRETTY_FUNCTION__)); | |||
2951 | ||||
2952 | layout_find_dimensions(&content->unit_len_ctx, | |||
2953 | *width, -1, b, b->style, | |||
2954 | &b->width, &b->height, | |||
2955 | &max_width, &min_width, | |||
2956 | &max_height, &min_height, | |||
2957 | NULL((void*)0), NULL((void*)0), NULL((void*)0)); | |||
2958 | ||||
2959 | if (b->object && !(b->flags & REPLACE_DIM)) { | |||
2960 | layout_get_object_dimensions(b, &b->width, &b->height, | |||
2961 | min_width, max_width, | |||
2962 | min_height, max_height); | |||
2963 | } else if (b->flags & IFRAME) { | |||
2964 | /* TODO: should we look at the content dimensions? */ | |||
2965 | if (b->width == AUTO(-2147483647 -1)) | |||
2966 | b->width = 400; | |||
2967 | if (b->height == AUTO(-2147483647 -1)) | |||
2968 | b->height = 300; | |||
2969 | ||||
2970 | /* We reformat the iframe browser window to new | |||
2971 | * dimensions in pass 2 */ | |||
2972 | } else { | |||
2973 | /* form control with no object */ | |||
2974 | if (b->width == AUTO(-2147483647 -1)) | |||
2975 | 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) | |||
2976 | b->style,((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10) | |||
2977 | &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) | |||
2978 | CSS_UNIT_EM))((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10); | |||
2979 | if (b->height == AUTO(-2147483647 -1)) | |||
2980 | 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) | |||
2981 | b->style,((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10) | |||
2982 | &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) | |||
2983 | CSS_UNIT_EM))((css_unit_len2device_px( b->style, &content->unit_len_ctx , (css_int_to_fixed(1)), CSS_UNIT_EM)) >> 10); | |||
2984 | } | |||
2985 | ||||
2986 | /* Reformat object to new box size */ | |||
2987 | if (b->object && content_can_reformat(b->object) && | |||
2988 | b->width != | |||
2989 | content_get_available_width(b->object)) { | |||
2990 | css_fixed value = 0; | |||
2991 | css_unit unit = CSS_UNIT_PX; | |||
2992 | enum css_height_e htype = css_computed_height(b->style, | |||
2993 | &value, &unit); | |||
2994 | ||||
2995 | content_reformat(b->object, false0, b->width, b->height); | |||
2996 | ||||
2997 | if (htype == CSS_HEIGHT_AUTO) | |||
2998 | b->height = content_get_height(b->object); | |||
2999 | } | |||
3000 | ||||
3001 | if (height < b->height) | |||
3002 | height = b->height; | |||
3003 | ||||
3004 | x += b->width; | |||
3005 | } | |||
3006 | ||||
3007 | /* find new sides using this height */ | |||
3008 | x0 = cx; | |||
3009 | x1 = cx + *width; | |||
3010 | find_sides(cont->float_children, cy, cy + height, &x0, &x1, | |||
3011 | &left, &right); | |||
3012 | x0 -= cx; | |||
3013 | x1 -= cx; | |||
3014 | ||||
3015 | if (indent) | |||
3016 | x0 += layout_text_indent(&content->unit_len_ctx, | |||
3017 | first->parent->parent->style, *width); | |||
3018 | ||||
3019 | if (x1 < x0) | |||
3020 | x1 = x0; | |||
3021 | ||||
3022 | space_after = space_before = 0; | |||
3023 | ||||
3024 | /* pass 2: place boxes in line: loop body executed at least once */ | |||
3025 | ||||
3026 | 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, 3026, }; nslog__log(&_nslog_ctx , "x0 %i, x1 %i, x1 - x0 %i", x0, x1, x1 - x0); } } while(0); | |||
3027 | ||||
3028 | for (x = x_previous = 0, b = first; x <= x1 - x0 && b; b = b->next) { | |||
3029 | ||||
3030 | 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, 3030, }; nslog__log(&_nslog_ctx , "pass 2: b %p, x %i", b, x); } } while(0); | |||
3031 | ||||
3032 | if (b->type == BOX_INLINE_BLOCK && | |||
3033 | (css_computed_position(b->style) == | |||
3034 | CSS_POSITION_ABSOLUTE || | |||
3035 | css_computed_position(b->style) == | |||
3036 | CSS_POSITION_FIXED)) { | |||
3037 | b->x = x + space_after; | |||
3038 | ||||
3039 | } else if (lh__box_is_inline_flow(b)) { | |||
3040 | assert(b->width != UNKNOWN_WIDTH)((b->width != 2147483647) ? (void) (0) : __assert_fail ("b->width != UNKNOWN_WIDTH" , "content/handlers/html/layout.c", 3040, __extension__ __PRETTY_FUNCTION__ )); | |||
3041 | ||||
3042 | x_previous = x; | |||
3043 | x += space_after; | |||
3044 | b->x = x; | |||
3045 | ||||
3046 | if ((b->type == BOX_INLINE && !b->inline_end) || | |||
3047 | b->type == BOX_INLINE_BLOCK || | |||
3048 | b->type == BOX_INLINE_FLEX) { | |||
3049 | b->x += b->margin[LEFT] + b->border[LEFT].width; | |||
3050 | x = b->x + b->padding[LEFT] + b->width + | |||
3051 | b->padding[RIGHT] + | |||
3052 | b->border[RIGHT].width + | |||
3053 | b->margin[RIGHT]; | |||
3054 | } else if (b->type == BOX_INLINE) { | |||
3055 | b->x += b->margin[LEFT] + b->border[LEFT].width; | |||
3056 | x = b->x + b->padding[LEFT] + b->width; | |||
3057 | } else if (b->type == BOX_INLINE_END) { | |||
3058 | b->height = b->inline_end->height; | |||
3059 | x += b->padding[RIGHT] + | |||
3060 | b->border[RIGHT].width + | |||
3061 | b->margin[RIGHT]; | |||
3062 | } else { | |||
3063 | x += b->width; | |||
3064 | } | |||
3065 | ||||
3066 | space_before = space_after; | |||
3067 | if (b->object || b->flags & REPLACE_DIM || | |||
3068 | b->flags & IFRAME) | |||
3069 | space_after = 0; | |||
3070 | else if (b->text || b->type == BOX_INLINE_END) { | |||
3071 | if (b->space == UNKNOWN_WIDTH2147483647) { | |||
3072 | font_plot_style_from_css( | |||
3073 | &content->unit_len_ctx, | |||
3074 | b->style, &fstyle); | |||
3075 | /** \todo handle errors */ | |||
3076 | font_func->width(&fstyle, " ", 1, | |||
3077 | &b->space); | |||
3078 | } | |||
3079 | space_after = b->space; | |||
3080 | } else { | |||
3081 | space_after = 0; | |||
3082 | } | |||
3083 | split_box = b; | |||
3084 | move_y = true1; | |||
3085 | inline_count++; | |||
3086 | } else if (b->type == BOX_BR) { | |||
3087 | b->x = x; | |||
3088 | b->width = 0; | |||
3089 | br_box = b; | |||
3090 | b = b->next; | |||
3091 | split_box = 0; | |||
3092 | move_y = true1; | |||
3093 | break; | |||
3094 | ||||
3095 | } else { | |||
3096 | /* float */ | |||
3097 | 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, 3097, }; nslog__log(&_nslog_ctx , "float %p", b); } } while(0); | |||
3098 | ||||
3099 | d = b->children; | |||
3100 | d->float_children = 0; | |||
3101 | d->cached_place_below_level = 0; | |||
3102 | b->float_container = d->float_container = cont; | |||
3103 | ||||
3104 | if (!layout_float(d, *width, content)) | |||
3105 | return false0; | |||
3106 | ||||
3107 | 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, 3111, }; nslog__log(&_nslog_ctx , "%p : %d %d", d, d->margin[TOP], d->border[TOP].width ); } } while(0) | |||
3108 | "%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, 3111, }; nslog__log(&_nslog_ctx , "%p : %d %d", d, d->margin[TOP], d->border[TOP].width ); } } while(0) | |||
3109 | 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, 3111, }; nslog__log(&_nslog_ctx , "%p : %d %d", d, d->margin[TOP], d->border[TOP].width ); } } while(0) | |||
3110 | 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, 3111, }; nslog__log(&_nslog_ctx , "%p : %d %d", d, d->margin[TOP], d->border[TOP].width ); } } while(0) | |||
3111 | 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, 3111, }; nslog__log(&_nslog_ctx , "%p : %d %d", d, d->margin[TOP], d->border[TOP].width ); } } while(0); | |||
3112 | ||||
3113 | d->x = d->margin[LEFT] + d->border[LEFT].width; | |||
3114 | d->y = d->margin[TOP] + d->border[TOP].width; | |||
3115 | b->width = d->margin[LEFT] + d->border[LEFT].width + | |||
3116 | d->padding[LEFT] + d->width + | |||
3117 | d->padding[RIGHT] + | |||
3118 | d->border[RIGHT].width + | |||
3119 | d->margin[RIGHT]; | |||
3120 | b->height = d->margin[TOP] + d->border[TOP].width + | |||
3121 | d->padding[TOP] + d->height + | |||
3122 | d->padding[BOTTOM] + | |||
3123 | d->border[BOTTOM].width + | |||
3124 | d->margin[BOTTOM]; | |||
3125 | ||||
3126 | if (b->width > (x1 - x0) - x) | |||
3127 | place_below = true1; | |||
3128 | if (d->style && (css_computed_clear(d->style) == | |||
3129 | CSS_CLEAR_NONE || | |||
3130 | (css_computed_clear(d->style) == | |||
3131 | CSS_CLEAR_LEFT && left == 0) || | |||
3132 | (css_computed_clear(d->style) == | |||
3133 | CSS_CLEAR_RIGHT && | |||
3134 | right == 0) || | |||
3135 | (css_computed_clear(d->style) == | |||
3136 | CSS_CLEAR_BOTH && | |||
3137 | left == 0 && right == 0)) && | |||
3138 | (!place_below || | |||
3139 | (left == 0 && right == 0 && x == 0)) && | |||
3140 | cy >= cont->clear_level && | |||
3141 | cy >= cont->cached_place_below_level) { | |||
3142 | /* + not cleared or, | |||
3143 | * cleared and there are no floats to clear | |||
3144 | * + fits without needing to be placed below or, | |||
3145 | * this line is empty with no floats | |||
3146 | * + current y, cy, is below the clear level | |||
3147 | * | |||
3148 | * Float affects current line */ | |||
3149 | if (b->type == BOX_FLOAT_LEFT) { | |||
3150 | b->x = cx + x0; | |||
3151 | if (b->width > 0) | |||
3152 | x0 += b->width; | |||
3153 | left = b; | |||
3154 | } else { | |||
3155 | b->x = cx + x1 - b->width; | |||
3156 | if (b->width > 0) | |||
3157 | x1 -= b->width; | |||
3158 | right = b; | |||
3159 | } | |||
3160 | b->y = cy; | |||
3161 | } else { | |||
3162 | /* cleared or doesn't fit on line */ | |||
3163 | /* place below into next available space */ | |||
3164 | int fcy = (cy > cont->clear_level) ? cy : | |||
3165 | cont->clear_level; | |||
3166 | fcy = (fcy > cont->cached_place_below_level) ? | |||
3167 | fcy : | |||
3168 | cont->cached_place_below_level; | |||
3169 | fy = (fy > fcy) ? fy : fcy; | |||
3170 | fy = (fy == cy) ? fy + height : fy; | |||
3171 | ||||
3172 | place_float_below(b, *width, cx, fy, cont); | |||
3173 | fy = b->y; | |||
3174 | if (d->style && ( | |||
3175 | (css_computed_clear(d->style) == | |||
3176 | CSS_CLEAR_LEFT && left != 0) || | |||
3177 | (css_computed_clear(d->style) == | |||
3178 | CSS_CLEAR_RIGHT && | |||
3179 | right != 0) || | |||
3180 | (css_computed_clear(d->style) == | |||
3181 | CSS_CLEAR_BOTH && | |||
3182 | (left != 0 || right != 0)))) { | |||
3183 | /* to be cleared below existing | |||
3184 | * floats */ | |||
3185 | if (b->type == BOX_FLOAT_LEFT) | |||
3186 | b->x = cx; | |||
3187 | else | |||
3188 | b->x = cx + *width - b->width; | |||
3189 | ||||
3190 | fcy = layout_clear(cont->float_children, | |||
3191 | css_computed_clear(d->style)); | |||
3192 | if (fcy > cont->clear_level) | |||
3193 | cont->clear_level = fcy; | |||
3194 | if (b->y < fcy) | |||
3195 | b->y = fcy; | |||
3196 | } | |||
3197 | if (b->type == BOX_FLOAT_LEFT) | |||
3198 | left = b; | |||
3199 | else | |||
3200 | right = b; | |||
3201 | } | |||
3202 | add_float_to_container(cont, b); | |||
3203 | ||||
3204 | split_box = 0; | |||
3205 | } | |||
3206 | } | |||
3207 | ||||
3208 | if (x1 - x0 < x && split_box) { | |||
3209 | /* the last box went over the end */ | |||
3210 | size_t split = 0; | |||
3211 | int w; | |||
3212 | bool_Bool no_wrap = css_computed_white_space( | |||
3213 | split_box->style) == CSS_WHITE_SPACE_NOWRAP || | |||
3214 | css_computed_white_space( | |||
3215 | split_box->style) == CSS_WHITE_SPACE_PRE; | |||
3216 | ||||
3217 | x = x_previous; | |||
3218 | ||||
3219 | if (!no_wrap && | |||
3220 | (split_box->type == BOX_INLINE || | |||
3221 | split_box->type == BOX_TEXT) && | |||
3222 | !split_box->object && | |||
3223 | !(split_box->flags & REPLACE_DIM) && | |||
3224 | !(split_box->flags & IFRAME) && | |||
3225 | !split_box->gadget && split_box->text) { | |||
3226 | ||||
3227 | font_plot_style_from_css(&content->unit_len_ctx, | |||
3228 | split_box->style, &fstyle); | |||
3229 | /** \todo handle errors */ | |||
3230 | font_func->split(&fstyle, | |||
3231 | split_box->text, | |||
3232 | split_box->length, | |||
3233 | x1 - x0 - x - space_before, | |||
3234 | &split, | |||
3235 | &w); | |||
3236 | } | |||
3237 | ||||
3238 | /* split == 0 implies that text can't be split */ | |||
3239 | ||||
3240 | if (split == 0) | |||
3241 | w = split_box->width; | |||
3242 | ||||
3243 | ||||
3244 | 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, 3254, }; 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) | |||
3245 | "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, 3254, }; 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) | |||
3246 | ", 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, 3254, }; 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) | |||
3247 | 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, 3254, }; 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) | |||
3248 | (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, 3254, }; 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) | |||
3249 | 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, 3254, }; 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) | |||
3250 | 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, 3254, }; 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) | |||
3251 | 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, 3254, }; 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) | |||
3252 | 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, 3254, }; 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) | |||
3253 | 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, 3254, }; 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) | |||
3254 | 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, 3254, }; 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); | |||
3255 | ||||
3256 | if ((split == 0 || x1 - x0 <= x + space_before + w) && | |||
3257 | !left && !right && inline_count == 1) { | |||
3258 | /* first word of box doesn't fit, but no floats and | |||
3259 | * first box on line so force in */ | |||
3260 | if (split == 0 || split == split_box->length) { | |||
3261 | /* only one word in this box, or not text | |||
3262 | * or white-space:nowrap */ | |||
3263 | b = split_box->next; | |||
3264 | } else { | |||
3265 | /* cut off first word for this line */ | |||
3266 | if (!layout_text_box_split(content, &fstyle, | |||
3267 | split_box, split, w)) | |||
3268 | return false0; | |||
3269 | b = split_box->next; | |||
3270 | } | |||
3271 | x += space_before + w; | |||
3272 | ||||
3273 | 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, 3273, }; nslog__log(&_nslog_ctx , "forcing"); } } while(0); | |||
3274 | ||||
3275 | } else if ((split == 0 || x1 - x0 <= x + space_before + w) && | |||
3276 | inline_count == 1) { | |||
3277 | /* first word of first box doesn't fit, but a float is | |||
3278 | * taking some of the width so move below it */ | |||
3279 | assert(left || right)((left || right) ? (void) (0) : __assert_fail ("left || right" , "content/handlers/html/layout.c", 3279, __extension__ __PRETTY_FUNCTION__ )); | |||
3280 | used_height = 0; | |||
3281 | if (left) { | |||
3282 | ||||
3283 | 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, 3287, }; nslog__log(&_nslog_ctx , "cy %i, left->y %i, left->height %i", cy, left->y, left->height); } } while(0) | |||
3284 | "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, 3287, }; nslog__log(&_nslog_ctx , "cy %i, left->y %i, left->height %i", cy, left->y, left->height); } } while(0) | |||
3285 | 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, 3287, }; nslog__log(&_nslog_ctx , "cy %i, left->y %i, left->height %i", cy, left->y, left->height); } } while(0) | |||
3286 | 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, 3287, }; nslog__log(&_nslog_ctx , "cy %i, left->y %i, left->height %i", cy, left->y, left->height); } } while(0) | |||
3287 | 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, 3287, }; nslog__log(&_nslog_ctx , "cy %i, left->y %i, left->height %i", cy, left->y, left->height); } } while(0); | |||
3288 | ||||
3289 | used_height = left->y + left->height - cy + 1; | |||
3290 | ||||
3291 | 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, 3292, }; nslog__log(&_nslog_ctx , "used_height %i", used_height); } } while(0) | |||
3292 | 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, 3292, }; nslog__log(&_nslog_ctx , "used_height %i", used_height); } } while(0); | |||
3293 | ||||
3294 | } | |||
3295 | if (right && used_height < | |||
3296 | right->y + right->height - cy + 1) | |||
3297 | used_height = right->y + right->height - cy + 1; | |||
3298 | ||||
3299 | if (used_height < 0) | |||
3300 | used_height = 0; | |||
3301 | ||||
3302 | b = split_box; | |||
3303 | ||||
3304 | 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, 3304, }; nslog__log(&_nslog_ctx , "moving below float"); } } while(0); | |||
3305 | ||||
3306 | } else if (split == 0 || x1 - x0 <= x + space_before + w) { | |||
3307 | /* first word of box doesn't fit so leave box for next | |||
3308 | * line */ | |||
3309 | b = split_box; | |||
3310 | ||||
3311 | 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, 3311, }; nslog__log(&_nslog_ctx , "leaving for next line"); } } while(0); | |||
3312 | ||||
3313 | } else { | |||
3314 | /* fit as many words as possible */ | |||
3315 | assert(split != 0)((split != 0) ? (void) (0) : __assert_fail ("split != 0", "content/handlers/html/layout.c" , 3315, __extension__ __PRETTY_FUNCTION__)); | |||
3316 | ||||
3317 | 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, 3320, }; nslog__log(&_nslog_ctx , "'%.*s' %i %""zu"" %i", (int)split_box->length, split_box ->text, x1 - x0, split, w); } } while(0) | |||
3318 | "'%.*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, 3320, }; nslog__log(&_nslog_ctx , "'%.*s' %i %""zu"" %i", (int)split_box->length, split_box ->text, x1 - x0, split, w); } } while(0) | |||
3319 | (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, 3320, }; nslog__log(&_nslog_ctx , "'%.*s' %i %""zu"" %i", (int)split_box->length, split_box ->text, x1 - x0, split, w); } } while(0) | |||
3320 | 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, 3320, }; nslog__log(&_nslog_ctx , "'%.*s' %i %""zu"" %i", (int)split_box->length, split_box ->text, x1 - x0, split, w); } } while(0); | |||
3321 | ||||
3322 | if (split != split_box->length) { | |||
3323 | if (!layout_text_box_split(content, &fstyle, | |||
3324 | split_box, split, w)) | |||
3325 | return false0; | |||
3326 | b = split_box->next; | |||
3327 | } | |||
3328 | x += space_before + w; | |||
3329 | ||||
3330 | 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, 3330, }; nslog__log(&_nslog_ctx , "fitting words"); } } while(0); | |||
3331 | ||||
3332 | } | |||
3333 | move_y = true1; | |||
3334 | } | |||
3335 | ||||
3336 | /* set positions */ | |||
3337 | switch (css_computed_text_align(first->parent->parent->style)) { | |||
3338 | case CSS_TEXT_ALIGN_RIGHT: | |||
3339 | case CSS_TEXT_ALIGN_LIBCSS_RIGHT: | |||
3340 | x0 = x1 - x; | |||
3341 | break; | |||
3342 | case CSS_TEXT_ALIGN_CENTER: | |||
3343 | case CSS_TEXT_ALIGN_LIBCSS_CENTER: | |||
3344 | x0 = (x0 + (x1 - x)) / 2; | |||
3345 | break; | |||
3346 | case CSS_TEXT_ALIGN_LEFT: | |||
3347 | case CSS_TEXT_ALIGN_LIBCSS_LEFT: | |||
3348 | case CSS_TEXT_ALIGN_JUSTIFY: | |||
3349 | /* leave on left */ | |||
3350 | break; | |||
3351 | case CSS_TEXT_ALIGN_DEFAULT: | |||
3352 | /* None; consider text direction */ | |||
3353 | switch (css_computed_direction(first->parent->parent->style)) { | |||
3354 | case CSS_DIRECTION_LTR: | |||
3355 | /* leave on left */ | |||
3356 | break; | |||
3357 | case CSS_DIRECTION_RTL: | |||
3358 | x0 = x1 - x; | |||
3359 | break; | |||
3360 | } | |||
3361 | break; | |||
3362 | } | |||
3363 | ||||
3364 | for (d = first; d != b; d = d->next) { | |||
3365 | d->flags &= ~NEW_LINE; | |||
3366 | ||||
3367 | if (d->type == BOX_INLINE_BLOCK && | |||
3368 | (css_computed_position(d->style) == | |||
3369 | CSS_POSITION_ABSOLUTE || | |||
3370 | css_computed_position(d->style) == | |||
3371 | CSS_POSITION_FIXED)) { | |||
3372 | /* positioned inline-blocks: | |||
3373 | * set static position (x,y) only, rest of positioning | |||
3374 | * is handled later */ | |||
3375 | d->x += x0; | |||
3376 | d->y = *y; | |||
3377 | continue; | |||
3378 | } else if ((d->type == BOX_INLINE && | |||
3379 | lh__box_is_replace(d) == false0) || | |||
3380 | d->type == BOX_BR || | |||
3381 | d->type == BOX_TEXT || | |||
3382 | d->type == BOX_INLINE_END) { | |||
3383 | /* regular (non-replaced) inlines */ | |||
3384 | d->x += x0; | |||
3385 | d->y = *y - d->padding[TOP]; | |||
3386 | ||||
3387 | if (d->type == BOX_TEXT && d->height > used_height) { | |||
3388 | /* text */ | |||
3389 | used_height = d->height; | |||
3390 | } | |||
3391 | } else if ((d->type == BOX_INLINE) || | |||
3392 | d->type == BOX_INLINE_BLOCK) { | |||
3393 | /* replaced inlines and inline-blocks */ | |||
3394 | d->x += x0; | |||
3395 | d->y = *y + d->border[TOP].width + d->margin[TOP]; | |||
3396 | h = d->margin[TOP] + d->border[TOP].width + | |||
3397 | d->padding[TOP] + d->height + | |||
3398 | d->padding[BOTTOM] + | |||
3399 | d->border[BOTTOM].width + | |||
3400 | d->margin[BOTTOM]; | |||
3401 | if (used_height < h) | |||
3402 | used_height = h; | |||
3403 | } | |||
3404 | } | |||
3405 | ||||
3406 | first->flags |= NEW_LINE; | |||
3407 | ||||
3408 | 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", 3408, __extension__ __PRETTY_FUNCTION__ )); | |||
3409 | ||||
3410 | /* handle vertical-align by adjusting box y values */ | |||
3411 | /** \todo proper vertical alignment handling */ | |||
3412 | for (d = first; d != b; d = d->next) { | |||
3413 | if ((d->type == BOX_INLINE && d->inline_end) || | |||
3414 | d->type == BOX_BR || | |||
3415 | d->type == BOX_TEXT || | |||
3416 | d->type == BOX_INLINE_END) { | |||
3417 | css_fixed value = 0; | |||
3418 | css_unit unit = CSS_UNIT_PX; | |||
3419 | switch (css_computed_vertical_align(d->style, &value, | |||
3420 | &unit)) { | |||
3421 | case CSS_VERTICAL_ALIGN_SUPER: | |||
3422 | case CSS_VERTICAL_ALIGN_TOP: | |||
3423 | case CSS_VERTICAL_ALIGN_TEXT_TOP: | |||
3424 | /* already at top */ | |||
3425 | break; | |||
3426 | case CSS_VERTICAL_ALIGN_SUB: | |||
3427 | case CSS_VERTICAL_ALIGN_BOTTOM: | |||
3428 | case CSS_VERTICAL_ALIGN_TEXT_BOTTOM: | |||
3429 | d->y += used_height - d->height; | |||
3430 | break; | |||
3431 | default: | |||
3432 | case CSS_VERTICAL_ALIGN_BASELINE: | |||
3433 | d->y += 0.75 * (used_height - d->height); | |||
3434 | break; | |||
3435 | } | |||
3436 | } | |||
3437 | } | |||
3438 | ||||
3439 | /* handle clearance for br */ | |||
3440 | if (br_box && css_computed_clear(br_box->style) != CSS_CLEAR_NONE) { | |||
3441 | int clear_y = layout_clear(cont->float_children, | |||
3442 | css_computed_clear(br_box->style)); | |||
3443 | if (used_height < clear_y - cy) | |||
3444 | used_height = clear_y - cy; | |||
3445 | } | |||
3446 | ||||
3447 | if (move_y) | |||
3448 | *y += used_height; | |||
3449 | *next_box = b; | |||
3450 | *width = x; /* return actual width */ | |||
3451 | return true1; | |||
3452 | } | |||
3453 | ||||
3454 | ||||
3455 | /** | |||
3456 | * Layout lines of text or inline boxes with floats. | |||
3457 | * | |||
3458 | * \param box inline container box | |||
3459 | * \param width horizontal space available | |||
3460 | * \param cont ancestor box which defines horizontal space, for floats | |||
3461 | * \param cx box position relative to cont | |||
3462 | * \param cy box position relative to cont | |||
3463 | * \param content memory pool for any new boxes | |||
3464 | * \return true on success, false on memory exhaustion | |||
3465 | */ | |||
3466 | static bool_Bool layout_inline_container(struct box *inline_container, int width, | |||
3467 | struct box *cont, int cx, int cy, html_content *content) | |||
3468 | { | |||
3469 | bool_Bool first_line = true1; | |||
3470 | bool_Bool has_text_children; | |||
3471 | struct box *c, *next; | |||
3472 | int y = 0; | |||
3473 | int curwidth,maxwidth = width; | |||
3474 | ||||
3475 | 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", 3475, __extension__ __PRETTY_FUNCTION__ )); | |||
3476 | ||||
3477 | 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, 3483, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0) | |||
3478 | "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, 3483, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0) | |||
3479 | 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, 3483, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0) | |||
3480 | 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, 3483, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0) | |||
3481 | 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, 3483, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0) | |||
3482 | 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, 3483, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0) | |||
3483 | 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, 3483, }; nslog__log(&_nslog_ctx , "inline_container %p, width %i, cont %p, cx %i, cy %i", inline_container , width, cont, cx, cy); } } while(0); | |||
3484 | ||||
3485 | ||||
3486 | has_text_children = false0; | |||
3487 | for (c = inline_container->children; c; c = c->next) { | |||
3488 | bool_Bool is_pre = false0; | |||
3489 | ||||
3490 | if (c->style) { | |||
3491 | enum css_white_space_e whitespace; | |||
3492 | ||||
3493 | whitespace = css_computed_white_space(c->style); | |||
3494 | ||||
3495 | is_pre = (whitespace == CSS_WHITE_SPACE_PRE || | |||
3496 | whitespace == CSS_WHITE_SPACE_PRE_LINE || | |||
3497 | whitespace == CSS_WHITE_SPACE_PRE_WRAP); | |||
3498 | } | |||
3499 | ||||
3500 | if ((lh__box_is_object(c) == false0 && | |||
3501 | c->text && (c->length || is_pre)) || | |||
3502 | c->type == BOX_BR) | |||
3503 | has_text_children = true1; | |||
3504 | } | |||
3505 | ||||
3506 | /** \todo fix wrapping so that a box with horizontal scrollbar will | |||
3507 | * shrink back to 'width' if no word is wider than 'width' (Or just set | |||
3508 | * curwidth = width and have the multiword lines wrap to the min width) | |||
3509 | */ | |||
3510 | for (c = inline_container->children; c; ) { | |||
3511 | ||||
3512 | 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, 3512, }; nslog__log(&_nslog_ctx , "c %p", c); } } while(0); | |||
3513 | ||||
3514 | curwidth = inline_container->width; | |||
3515 | if (!layout_line(c, &curwidth, &y, cx, cy + y, cont, first_line, | |||
3516 | has_text_children, content, &next)) | |||
3517 | return false0; | |||
3518 | maxwidth = max(maxwidth,curwidth)(((maxwidth)>(curwidth))?(maxwidth):(curwidth)); | |||
3519 | c = next; | |||
3520 | first_line = false0; | |||
3521 | } | |||
3522 | ||||
3523 | inline_container->width = maxwidth; | |||
3524 | inline_container->height = y; | |||
3525 | ||||
3526 | return true1; | |||
3527 | } | |||
3528 | ||||
3529 | ||||
3530 | /* Documented in layout_intertnal.h */ | |||
3531 | bool_Bool layout_block_context( | |||
3532 | struct box *block, | |||
3533 | int viewport_height, | |||
3534 | html_content *content) | |||
3535 | { | |||
3536 | struct box *box; | |||
3537 | int cx, cy; /**< current coordinates */ | |||
3538 | int max_pos_margin = 0; | |||
3539 | int max_neg_margin = 0; | |||
3540 | int y = 0; | |||
3541 | int lm, rm; | |||
3542 | struct box *margin_collapse = NULL((void*)0); | |||
3543 | bool_Bool in_margin = false0; | |||
3544 | css_fixed gadget_size; | |||
3545 | css_unit gadget_unit; /* Checkbox / radio buttons */ | |||
3546 | ||||
3547 | 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", 3551, __extension__ __PRETTY_FUNCTION__ )) | |||
3548 | 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", 3551, __extension__ __PRETTY_FUNCTION__ )) | |||
3549 | 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", 3551, __extension__ __PRETTY_FUNCTION__ )) | |||
3550 | 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", 3551, __extension__ __PRETTY_FUNCTION__ )) | |||
3551 | 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", 3551, __extension__ __PRETTY_FUNCTION__ )); | |||
3552 | assert(block->width != UNKNOWN_WIDTH)((block->width != 2147483647) ? (void) (0) : __assert_fail ("block->width != UNKNOWN_WIDTH", "content/handlers/html/layout.c" , 3552, __extension__ __PRETTY_FUNCTION__)); | |||
3553 | assert(block->width != AUTO)((block->width != (-2147483647 -1)) ? (void) (0) : __assert_fail ("block->width != AUTO", "content/handlers/html/layout.c" , 3553, __extension__ __PRETTY_FUNCTION__)); | |||
3554 | ||||
3555 | block->float_children = NULL((void*)0); | |||
3556 | block->cached_place_below_level = 0; | |||
3557 | block->clear_level = 0; | |||
3558 | ||||
3559 | /* special case if the block contains an object */ | |||
3560 | if (block->object) { | |||
3561 | int temp_width = block->width; | |||
3562 | if (!layout_block_object(block)) | |||
3563 | return false0; | |||
3564 | layout_get_object_dimensions(block, &temp_width, | |||
3565 | &block->height, INT_MIN(-2147483647 -1), INT_MAX2147483647, | |||
3566 | INT_MIN(-2147483647 -1), INT_MAX2147483647); | |||
3567 | return true1; | |||
3568 | } else if (block->flags & REPLACE_DIM) { | |||
3569 | return true1; | |||
3570 | } | |||
3571 | ||||
3572 | /* special case if the block contains an radio button or checkbox */ | |||
3573 | if (block->gadget && (block->gadget->type == GADGET_RADIO || | |||
3574 | block->gadget->type == GADGET_CHECKBOX)) { | |||
3575 | /* form checkbox or radio button | |||
3576 | * if width or height is AUTO, set it to 1em */ | |||
3577 | gadget_unit = CSS_UNIT_EM; | |||
3578 | gadget_size = INTTOFIX(1)(css_int_to_fixed(1)); | |||
3579 | if (block->height == AUTO(-2147483647 -1)) | |||
3580 | block->height = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( block->style, &content->unit_len_ctx , gadget_size, gadget_unit)) >> 10) | |||
3581 | block->style,((css_unit_len2device_px( block->style, &content->unit_len_ctx , gadget_size, gadget_unit)) >> 10) | |||
3582 | &content->unit_len_ctx,((css_unit_len2device_px( block->style, &content->unit_len_ctx , gadget_size, gadget_unit)) >> 10) | |||
3583 | gadget_size, gadget_unit))((css_unit_len2device_px( block->style, &content->unit_len_ctx , gadget_size, gadget_unit)) >> 10); | |||
3584 | } | |||
3585 | ||||
3586 | box = block->children; | |||
3587 | /* set current coordinates to top-left of the block */ | |||
3588 | cx = 0; | |||
3589 | y = cy = block->padding[TOP]; | |||
3590 | if (box) | |||
3591 | box->y = block->padding[TOP]; | |||
3592 | ||||
3593 | /* Step through the descendants of the block in depth-first order, but | |||
3594 | * not into the children of boxes which aren't blocks. For example, if | |||
3595 | * the tree passed to this function looks like this (box->type shown): | |||
3596 | * | |||
3597 | * block -> BOX_BLOCK | |||
3598 | * BOX_BLOCK * (1) | |||
3599 | * BOX_INLINE_CONTAINER * (2) | |||
3600 | * BOX_INLINE | |||
3601 | * BOX_TEXT | |||
3602 | * ... | |||
3603 | * BOX_BLOCK * (3) | |||
3604 | * BOX_TABLE * (4) | |||
3605 | * BOX_TABLE_ROW | |||
3606 | * BOX_TABLE_CELL | |||
3607 | * ... | |||
3608 | * BOX_TABLE_CELL | |||
3609 | * ... | |||
3610 | * BOX_BLOCK * (5) | |||
3611 | * BOX_INLINE_CONTAINER * (6) | |||
3612 | * BOX_TEXT | |||
3613 | * ... | |||
3614 | * then the while loop will visit each box marked with *, setting box | |||
3615 | * to each in the order shown. */ | |||
3616 | while (box) { | |||
3617 | enum css_overflow_e overflow_x = CSS_OVERFLOW_VISIBLE; | |||
3618 | enum css_overflow_e overflow_y = CSS_OVERFLOW_VISIBLE; | |||
3619 | ||||
3620 | 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", 3623, __extension__ __PRETTY_FUNCTION__ )) | |||
3621 | 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", 3623, __extension__ __PRETTY_FUNCTION__ )) | |||
3622 | 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", 3623, __extension__ __PRETTY_FUNCTION__ )) | |||
3623 | 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", 3623, __extension__ __PRETTY_FUNCTION__ )); | |||
3624 | ||||
3625 | /* Tables are laid out before being positioned, because the | |||
3626 | * position depends on the width which is calculated in | |||
3627 | * table layout. Blocks and inline containers are positioned | |||
3628 | * before being laid out, because width is not dependent on | |||
3629 | * content, and the position is required during layout for | |||
3630 | * correct handling of floats. | |||
3631 | */ | |||
3632 | ||||
3633 | if (box->style && | |||
3634 | (css_computed_position(box->style) == | |||
3635 | CSS_POSITION_ABSOLUTE || | |||
3636 | css_computed_position(box->style) == | |||
3637 | CSS_POSITION_FIXED)) { | |||
3638 | box->x = box->parent->padding[LEFT]; | |||
3639 | /* absolute positioned; this element will establish | |||
3640 | * its own block context when it gets laid out later, | |||
3641 | * so no need to look at its children now. */ | |||
3642 | goto advance_to_next_box; | |||
3643 | } | |||
3644 | ||||
3645 | /* If we don't know which box the current margin collapses | |||
3646 | * through to, find out. Update the pos/neg margin values. */ | |||
3647 | if (margin_collapse == NULL((void*)0)) { | |||
3648 | margin_collapse = layout_next_margin_block( | |||
3649 | &content->unit_len_ctx, box, block, | |||
3650 | viewport_height, | |||
3651 | &max_pos_margin, &max_neg_margin); | |||
3652 | /* We have a margin that has not yet been applied. */ | |||
3653 | in_margin = true1; | |||
3654 | } | |||
3655 | ||||
3656 | /* Clearance. */ | |||
3657 | y = 0; | |||
3658 | if (box->style && css_computed_clear(box->style) != | |||
3659 | CSS_CLEAR_NONE) | |||
3660 | y = layout_clear(block->float_children, | |||
3661 | css_computed_clear(box->style)); | |||
3662 | ||||
3663 | /* Find box's overflow properties */ | |||
3664 | if (box->style) { | |||
3665 | overflow_x = css_computed_overflow_x(box->style); | |||
3666 | overflow_y = css_computed_overflow_y(box->style); | |||
3667 | } | |||
3668 | ||||
3669 | /* Blocks establishing a block formatting context get minimum | |||
3670 | * left and right margins to avoid any floats. */ | |||
3671 | lm = rm = 0; | |||
3672 | ||||
3673 | if (box->type == BOX_FLEX || | |||
3674 | box->type == BOX_BLOCK || | |||
3675 | box->flags & IFRAME) { | |||
3676 | if (lh__box_is_object(box) == false0 && | |||
3677 | box->style && | |||
3678 | (overflow_x != CSS_OVERFLOW_VISIBLE || | |||
3679 | overflow_y != CSS_OVERFLOW_VISIBLE)) { | |||
3680 | /* box establishes new block formatting context | |||
3681 | * so available width may be diminished due to | |||
3682 | * floats. */ | |||
3683 | int x0, x1, top; | |||
3684 | struct box *left, *right; | |||
3685 | top = cy + max_pos_margin - max_neg_margin; | |||
3686 | top = (top > y) ? top : y; | |||
3687 | x0 = cx; | |||
3688 | x1 = cx + box->parent->width - | |||
3689 | box->parent->padding[LEFT] - | |||
3690 | box->parent->padding[RIGHT]; | |||
3691 | find_sides(block->float_children, top, top, | |||
3692 | &x0, &x1, &left, &right); | |||
3693 | /* calculate min required left & right margins | |||
3694 | * needed to avoid floats */ | |||
3695 | lm = x0 - cx; | |||
3696 | rm = cx + box->parent->width - | |||
3697 | box->parent->padding[LEFT] - | |||
3698 | box->parent->padding[RIGHT] - | |||
3699 | x1; | |||
3700 | } | |||
3701 | layout_block_find_dimensions(&content->unit_len_ctx, | |||
3702 | box->parent->width, | |||
3703 | viewport_height, lm, rm, box); | |||
3704 | if (box->type == BOX_BLOCK && !(box->flags & IFRAME)) { | |||
3705 | layout_block_add_scrollbar(box, RIGHT); | |||
3706 | layout_block_add_scrollbar(box, BOTTOM); | |||
3707 | } | |||
3708 | } else if (box->type == BOX_TABLE) { | |||
3709 | if (box->style != NULL((void*)0)) { | |||
3710 | enum css_width_e wtype; | |||
3711 | css_fixed width = 0; | |||
3712 | css_unit unit = CSS_UNIT_PX; | |||
3713 | ||||
3714 | wtype = css_computed_width(box->style, &width, | |||
3715 | &unit); | |||
3716 | ||||
3717 | if (wtype == CSS_WIDTH_AUTO) { | |||
3718 | /* max available width may be | |||
3719 | * diminished due to floats. */ | |||
3720 | int x0, x1, top; | |||
3721 | struct box *left, *right; | |||
3722 | top = cy + max_pos_margin - | |||
3723 | max_neg_margin; | |||
3724 | top = (top > y) ? top : y; | |||
3725 | x0 = cx; | |||
3726 | x1 = cx + box->parent->width - | |||
3727 | box->parent->padding[LEFT] - | |||
3728 | box->parent->padding[RIGHT]; | |||
3729 | find_sides(block->float_children, | |||
3730 | top, top, &x0, &x1, | |||
3731 | &left, &right); | |||
3732 | /* calculate min required left & right | |||
3733 | * margins needed to avoid floats */ | |||
3734 | lm = x0 - cx; | |||
3735 | rm = cx + box->parent->width - | |||
3736 | box->parent->padding[LEFT] - | |||
3737 | box->parent->padding[RIGHT] - | |||
3738 | x1; | |||
3739 | } | |||
3740 | } | |||
3741 | if (!layout_table(box, box->parent->width - lm - rm, | |||
3742 | content)) | |||
3743 | return false0; | |||
3744 | layout_solve_width(box, box->parent->width, box->width, | |||
3745 | lm, rm, -1, -1); | |||
3746 | } | |||
3747 | ||||
3748 | /* Position box: horizontal. */ | |||
3749 | box->x = box->parent->padding[LEFT] + box->margin[LEFT] + | |||
3750 | box->border[LEFT].width; | |||
3751 | cx += box->x; | |||
3752 | ||||
3753 | /* Position box: vertical. */ | |||
3754 | if (box->border[TOP].width) { | |||
3755 | box->y += box->border[TOP].width; | |||
3756 | cy += box->border[TOP].width; | |||
3757 | } | |||
3758 | ||||
3759 | /* Vertical margin */ | |||
3760 | if (((box->type == BOX_BLOCK && (box->flags & HAS_HEIGHT)) || | |||
3761 | box->type == BOX_FLEX || | |||
3762 | box->type == BOX_TABLE || | |||
3763 | (box->type == BOX_INLINE_CONTAINER && | |||
3764 | !box_is_first_child(box)) || | |||
3765 | margin_collapse == box) && | |||
3766 | in_margin == true1) { | |||
3767 | /* Margin goes above this box. */ | |||
3768 | cy += max_pos_margin - max_neg_margin; | |||
3769 | box->y += max_pos_margin - max_neg_margin; | |||
3770 | ||||
3771 | /* Current margin has been applied. */ | |||
3772 | in_margin = false0; | |||
3773 | max_pos_margin = max_neg_margin = 0; | |||
3774 | } | |||
3775 | ||||
3776 | /* Handle clearance */ | |||
3777 | if (box->type != BOX_INLINE_CONTAINER && | |||
3778 | (y > 0) && (cy < y)) { | |||
3779 | /* box clears something*/ | |||
3780 | box->y += y - cy; | |||
3781 | cy = y; | |||
3782 | } | |||
3783 | ||||
3784 | /* Unless the box has an overflow style of visible, the box | |||
3785 | * establishes a new block context. */ | |||
3786 | if (box->type == BOX_FLEX || | |||
3787 | (box->type == BOX_BLOCK && box->style && | |||
3788 | (overflow_x != CSS_OVERFLOW_VISIBLE || | |||
3789 | overflow_y != CSS_OVERFLOW_VISIBLE))) { | |||
3790 | ||||
3791 | if (box->type == BOX_FLEX) { | |||
3792 | if (!layout_flex(box, box->width, content)) { | |||
3793 | return false0; | |||
3794 | } | |||
3795 | } else { | |||
3796 | layout_block_context(box, | |||
3797 | viewport_height, content); | |||
3798 | } | |||
3799 | ||||
3800 | cy += box->padding[TOP]; | |||
3801 | ||||
3802 | if (box->height == AUTO(-2147483647 -1)) { | |||
3803 | box->height = 0; | |||
3804 | layout_block_add_scrollbar(box, BOTTOM); | |||
3805 | } | |||
3806 | ||||
3807 | cx -= box->x; | |||
3808 | cy += box->height + box->padding[BOTTOM] + | |||
3809 | box->border[BOTTOM].width; | |||
3810 | y = box->y + box->padding[TOP] + box->height + | |||
3811 | box->padding[BOTTOM] + | |||
3812 | box->border[BOTTOM].width; | |||
3813 | ||||
3814 | /* Skip children, because they are done in the new | |||
3815 | * block context */ | |||
3816 | goto advance_to_next_box; | |||
3817 | } | |||
3818 | ||||
3819 | 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, 3820, }; nslog__log(&_nslog_ctx , "box %p, cx %i, cy %i, width %i", box, cx, cy, box->width ); } } while(0) | |||
3820 | 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, 3820, }; nslog__log(&_nslog_ctx , "box %p, cx %i, cy %i, width %i", box, cx, cy, box->width ); } } while(0); | |||
3821 | ||||
3822 | /* Layout (except tables). */ | |||
3823 | if (box->object) { | |||
3824 | if (!layout_block_object(box)) | |||
3825 | return false0; | |||
3826 | ||||
3827 | } else if (box->type == BOX_INLINE_CONTAINER) { | |||
3828 | box->width = box->parent->width; | |||
3829 | if (!layout_inline_container(box, box->width, block, | |||
3830 | cx, cy, content)) | |||
3831 | return false0; | |||
3832 | ||||
3833 | } else if (box->type == BOX_TABLE) { | |||
3834 | /* Move down to avoid floats if necessary. */ | |||
3835 | int x0, x1; | |||
3836 | struct box *left, *right; | |||
3837 | y = cy; | |||
3838 | while (1) { | |||
3839 | enum css_width_e wtype; | |||
3840 | css_fixed width = 0; | |||
3841 | css_unit unit = CSS_UNIT_PX; | |||
3842 | ||||
3843 | wtype = css_computed_width(box->style, | |||
3844 | &width, &unit); | |||
3845 | ||||
3846 | x0 = cx; | |||
3847 | x1 = cx + box->parent->width; | |||
3848 | find_sides(block->float_children, y, | |||
3849 | y + box->height, | |||
3850 | &x0, &x1, &left, &right); | |||
3851 | if (wtype == CSS_WIDTH_AUTO) | |||
3852 | break; | |||
3853 | if (box->width <= x1 - x0) | |||
3854 | break; | |||
3855 | if (!left && !right) | |||
3856 | break; | |||
3857 | else if (!left) | |||
3858 | y = right->y + right->height + 1; | |||
3859 | else if (!right) | |||
3860 | y = left->y + left->height + 1; | |||
3861 | else if (left->y + left->height < | |||
3862 | right->y + right->height) | |||
3863 | y = left->y + left->height + 1; | |||
3864 | else | |||
3865 | y = right->y + right->height + 1; | |||
3866 | } | |||
3867 | box->x += x0 - cx; | |||
3868 | cx = x0; | |||
3869 | box->y += y - cy; | |||
3870 | cy = y; | |||
3871 | } | |||
3872 | ||||
3873 | /* Advance to next box. */ | |||
3874 | if (box->type == BOX_BLOCK && !box->object && !(box->iframe) && | |||
3875 | box->children) { | |||
3876 | /* Down into children. */ | |||
3877 | ||||
3878 | if (box == margin_collapse) { | |||
3879 | /* Current margin collapsed though to this box. | |||
3880 | * Unset margin_collapse. */ | |||
3881 | margin_collapse = NULL((void*)0); | |||
3882 | } | |||
3883 | ||||
3884 | y = box->padding[TOP]; | |||
3885 | box = box->children; | |||
3886 | box->y = y; | |||
3887 | cy += y; | |||
3888 | continue; | |||
3889 | } else if (box->type == BOX_BLOCK || box->object || | |||
3890 | box->flags & IFRAME) | |||
3891 | cy += box->padding[TOP]; | |||
3892 | ||||
3893 | if (box->type == BOX_BLOCK && box->height == AUTO(-2147483647 -1)) { | |||
3894 | box->height = 0; | |||
3895 | layout_block_add_scrollbar(box, BOTTOM); | |||
3896 | } | |||
3897 | ||||
3898 | cy += box->height + box->padding[BOTTOM] + | |||
3899 | box->border[BOTTOM].width; | |||
3900 | cx -= box->x; | |||
3901 | y = box->y + box->padding[TOP] + box->height + | |||
3902 | box->padding[BOTTOM] + | |||
3903 | box->border[BOTTOM].width; | |||
3904 | ||||
3905 | advance_to_next_box: | |||
3906 | if (!box->next) { | |||
3907 | /* No more siblings: | |||
3908 | * up to first ancestor with a sibling. */ | |||
3909 | ||||
3910 | do { | |||
3911 | if (box == margin_collapse) { | |||
3912 | /* Current margin collapsed though to | |||
3913 | * this box. Unset margin_collapse. */ | |||
3914 | margin_collapse = NULL((void*)0); | |||
3915 | } | |||
3916 | ||||
3917 | /* Apply bottom margin */ | |||
3918 | if (max_pos_margin < box->margin[BOTTOM]) | |||
3919 | max_pos_margin = box->margin[BOTTOM]; | |||
3920 | else if (max_neg_margin < -box->margin[BOTTOM]) | |||
3921 | max_neg_margin = -box->margin[BOTTOM]; | |||
3922 | ||||
3923 | box = box->parent; | |||
3924 | if (box == block) | |||
3925 | break; | |||
3926 | ||||
3927 | /* Margin is invalidated if this is a box | |||
3928 | * margins can't collapse through. */ | |||
3929 | if (box->type == BOX_BLOCK && | |||
3930 | box->flags & MAKE_HEIGHT) { | |||
3931 | margin_collapse = NULL((void*)0); | |||
3932 | in_margin = false0; | |||
3933 | max_pos_margin = max_neg_margin = 0; | |||
3934 | } | |||
3935 | ||||
3936 | if (box->height == AUTO(-2147483647 -1)) { | |||
3937 | box->height = y - box->padding[TOP]; | |||
3938 | ||||
3939 | if (box->type == BOX_BLOCK) | |||
3940 | layout_block_add_scrollbar(box, | |||
3941 | BOTTOM); | |||
3942 | } else | |||
3943 | cy += box->height - | |||
3944 | (y - box->padding[TOP]); | |||
3945 | ||||
3946 | /* Apply any min-height and max-height to | |||
3947 | * boxes in normal flow */ | |||
3948 | if (box->style && | |||
3949 | css_computed_position(box->style) != | |||
3950 | CSS_POSITION_ABSOLUTE && | |||
3951 | layout_apply_minmax_height( | |||
3952 | &content->unit_len_ctx, | |||
3953 | box, NULL((void*)0))) { | |||
3954 | /* Height altered */ | |||
3955 | /* Set current cy */ | |||
3956 | cy += box->height - | |||
3957 | (y - box->padding[TOP]); | |||
3958 | } | |||
3959 | ||||
3960 | cy += box->padding[BOTTOM] + | |||
3961 | box->border[BOTTOM].width; | |||
3962 | cx -= box->x; | |||
3963 | y = box->y + box->padding[TOP] + box->height + | |||
3964 | box->padding[BOTTOM] + | |||
3965 | box->border[BOTTOM].width; | |||
3966 | ||||
3967 | } while (box->next == NULL((void*)0)); | |||
3968 | if (box == block) | |||
3969 | break; | |||
3970 | } | |||
3971 | ||||
3972 | /* To next sibling. */ | |||
3973 | ||||
3974 | if (box == margin_collapse) { | |||
3975 | /* Current margin collapsed though to this box. | |||
3976 | * Unset margin_collapse. */ | |||
3977 | margin_collapse = NULL((void*)0); | |||
3978 | } | |||
3979 | ||||
3980 | if (max_pos_margin < box->margin[BOTTOM]) | |||
3981 | max_pos_margin = box->margin[BOTTOM]; | |||
3982 | else if (max_neg_margin < -box->margin[BOTTOM]) | |||
3983 | max_neg_margin = -box->margin[BOTTOM]; | |||
3984 | ||||
3985 | box = box->next; | |||
3986 | box->y = y; | |||
3987 | } | |||
3988 | ||||
3989 | /* Account for bottom margin of last contained block */ | |||
3990 | cy += max_pos_margin - max_neg_margin; | |||
3991 | ||||
3992 | /* Increase height to contain any floats inside (CSS 2.1 10.6.7). */ | |||
3993 | for (box = block->float_children; box; box = box->next_float) { | |||
3994 | y = box->y + box->height + box->padding[BOTTOM] + | |||
3995 | box->border[BOTTOM].width + box->margin[BOTTOM]; | |||
3996 | if (cy < y) | |||
3997 | cy = y; | |||
3998 | } | |||
3999 | ||||
4000 | if (block->height == AUTO(-2147483647 -1)) { | |||
4001 | block->height = cy - block->padding[TOP]; | |||
4002 | if (block->type == BOX_BLOCK) | |||
4003 | layout_block_add_scrollbar(block, BOTTOM); | |||
4004 | } | |||
4005 | ||||
4006 | if (block->style && css_computed_position(block->style) != | |||
4007 | CSS_POSITION_ABSOLUTE) { | |||
4008 | /* Block is in normal flow */ | |||
4009 | layout_apply_minmax_height(&content->unit_len_ctx, block, NULL((void*)0)); | |||
4010 | } | |||
4011 | ||||
4012 | if (block->gadget && | |||
4013 | (block->gadget->type == GADGET_TEXTAREA || | |||
4014 | block->gadget->type == GADGET_PASSWORD || | |||
4015 | block->gadget->type == GADGET_TEXTBOX)) { | |||
4016 | plot_font_style_t fstyle; | |||
4017 | int ta_width = block->padding[LEFT] + block->width + | |||
4018 | block->padding[RIGHT]; | |||
4019 | int ta_height = block->padding[TOP] + block->height + | |||
4020 | block->padding[BOTTOM]; | |||
4021 | font_plot_style_from_css(&content->unit_len_ctx, | |||
4022 | block->style, &fstyle); | |||
4023 | fstyle.background = NS_TRANSPARENT0x01000000; | |||
4024 | textarea_set_layout(block->gadget->data.text.ta, | |||
4025 | &fstyle, ta_width, ta_height, | |||
4026 | block->padding[TOP], block->padding[RIGHT], | |||
4027 | block->padding[BOTTOM], block->padding[LEFT]); | |||
4028 | } | |||
4029 | ||||
4030 | return true1; | |||
4031 | } | |||
4032 | ||||
4033 | /** | |||
4034 | * Get a dom node's element tag type. | |||
4035 | * | |||
4036 | * \param[in] node Node to get tag type of. | |||
4037 | * \param[in] type Returns element tag type on success. | |||
4038 | * \return true if on success, false otherwise. | |||
4039 | */ | |||
4040 | static bool_Bool | |||
4041 | layout__get_element_tag( | |||
4042 | const dom_node *node, | |||
4043 | dom_html_element_type *type) | |||
4044 | { | |||
4045 | dom_html_element_type element_type; | |||
4046 | dom_node_type node_type; | |||
4047 | dom_exception exc; | |||
4048 | ||||
4049 | exc = dom_node_get_node_type(node, &node_type)dom_node_get_node_type( (dom_node *) (node), (dom_node_type * ) (&node_type)); | |||
4050 | if (exc != DOM_NO_ERR || | |||
4051 | node_type != DOM_ELEMENT_NODE) { | |||
4052 | return false0; | |||
4053 | } | |||
4054 | ||||
4055 | exc = dom_html_element_get_tag_type(node, &element_type)dom_html_element_get_tag_type((const dom_html_element *) (node ), (&element_type)); | |||
4056 | if (exc != DOM_NO_ERR) { | |||
4057 | return false0; | |||
4058 | } | |||
4059 | ||||
4060 | *type = element_type; | |||
4061 | return true1; | |||
4062 | } | |||
4063 | ||||
4064 | ||||
4065 | /** | |||
4066 | * Check a node's tag type. | |||
4067 | * | |||
4068 | * \param[in] node Node to check tag type of. | |||
4069 | * \param[in] type Tag type to test for. | |||
4070 | * \return true if if node has given type, false otherwise. | |||
4071 | */ | |||
4072 | static inline bool_Bool | |||
4073 | layout__check_element_type( | |||
4074 | const dom_node *node, | |||
4075 | dom_html_element_type type) | |||
4076 | { | |||
4077 | dom_html_element_type element_type; | |||
4078 | ||||
4079 | if (!layout__get_element_tag(node, &element_type)) { | |||
4080 | return false0; | |||
4081 | } | |||
4082 | ||||
4083 | return element_type == type; | |||
4084 | } | |||
4085 | ||||
4086 | ||||
4087 | /** | |||
4088 | * Helper to get attribute value from a LI node. | |||
4089 | * | |||
4090 | * \param[in] li_node DOM node for the LI element; | |||
4091 | * \param[out] value_out Returns the value on success. | |||
4092 | * \return true if node has value, otherwise false. | |||
4093 | */ | |||
4094 | static bool_Bool | |||
4095 | layout__get_li_value(dom_node *li_node, dom_long *value_out) | |||
4096 | { | |||
4097 | dom_exception exc; | |||
4098 | dom_long value; | |||
4099 | bool_Bool has_value; | |||
4100 | ||||
4101 | /** \todo | |||
4102 | * dom_html_li_element_get_value() is rubbish and we can't tell | |||
4103 | * a lack of value attribute or invalid value from a perfectly | |||
4104 | * valid '-1'. | |||
4105 | * | |||
4106 | * This helps for the common case of no value. However we should | |||
4107 | * fix libdom to have some kind of sane interface to get numerical | |||
4108 | * attributes. | |||
4109 | */ | |||
4110 | exc = dom_element_has_attribute(li_node,dom_element_has_attribute( (dom_element *) (li_node), (corestring_dom_value ), (_Bool *) (&has_value)) | |||
4111 | corestring_dom_value,dom_element_has_attribute( (dom_element *) (li_node), (corestring_dom_value ), (_Bool *) (&has_value)) | |||
4112 | &has_value)dom_element_has_attribute( (dom_element *) (li_node), (corestring_dom_value ), (_Bool *) (&has_value)); | |||
4113 | if (exc != DOM_NO_ERR || has_value == false0) { | |||
4114 | return false0; | |||
4115 | } | |||
4116 | ||||
4117 | exc = dom_html_li_element_get_value( | |||
4118 | (dom_html_li_element *)li_node, | |||
4119 | &value); | |||
4120 | if (exc != DOM_NO_ERR) { | |||
4121 | return false0; | |||
4122 | } | |||
4123 | ||||
4124 | *value_out = value; | |||
4125 | return true1; | |||
4126 | } | |||
4127 | ||||
4128 | ||||
4129 | /** | |||
4130 | * Helper to get start attribute value from a OL node. | |||
4131 | * | |||
4132 | * \param[in] ol_node DOM node for the OL element; | |||
4133 | * \param[out] start_out Returns the value on success. | |||
4134 | * \return true if node has value, otherwise false. | |||
4135 | */ | |||
4136 | static bool_Bool | |||
4137 | layout__get_ol_start(dom_node *ol_node, dom_long *start_out) | |||
4138 | { | |||
4139 | dom_exception exc; | |||
4140 | dom_long start; | |||
4141 | bool_Bool has_start; | |||
4142 | ||||
4143 | /** \todo | |||
4144 | * see layout__get_li_value(). | |||
4145 | */ | |||
4146 | exc = dom_element_has_attribute(ol_node,dom_element_has_attribute( (dom_element *) (ol_node), (corestring_dom_start ), (_Bool *) (&has_start)) | |||
4147 | corestring_dom_start,dom_element_has_attribute( (dom_element *) (ol_node), (corestring_dom_start ), (_Bool *) (&has_start)) | |||
4148 | &has_start)dom_element_has_attribute( (dom_element *) (ol_node), (corestring_dom_start ), (_Bool *) (&has_start)); | |||
4149 | if (exc != DOM_NO_ERR || has_start == false0) { | |||
4150 | return false0; | |||
4151 | } | |||
4152 | ||||
4153 | exc = dom_html_olist_element_get_start( | |||
4154 | (dom_html_olist_element *)ol_node, | |||
4155 | &start); | |||
4156 | if (exc != DOM_NO_ERR) { | |||
4157 | return false0; | |||
4158 | } | |||
4159 | ||||
4160 | *start_out = start; | |||
4161 | return true1; | |||
4162 | } | |||
4163 | ||||
4164 | ||||
4165 | /** | |||
4166 | * Helper to get reversed attribute value from a OL node. | |||
4167 | * | |||
4168 | * \param[in] ol_node DOM node for the OL element; | |||
4169 | * \return true if node has reversed, otherwise false. | |||
4170 | */ | |||
4171 | static bool_Bool | |||
4172 | layout__get_ol_reversed(dom_node *ol_node) | |||
4173 | { | |||
4174 | dom_exception exc; | |||
4175 | bool_Bool has_reversed; | |||
4176 | ||||
4177 | exc = dom_element_has_attribute(ol_node,dom_element_has_attribute( (dom_element *) (ol_node), (corestring_dom_reversed ), (_Bool *) (&has_reversed)) | |||
4178 | corestring_dom_reversed,dom_element_has_attribute( (dom_element *) (ol_node), (corestring_dom_reversed ), (_Bool *) (&has_reversed)) | |||
4179 | &has_reversed)dom_element_has_attribute( (dom_element *) (ol_node), (corestring_dom_reversed ), (_Bool *) (&has_reversed)); | |||
4180 | if (exc != DOM_NO_ERR) { | |||
4181 | return false0; | |||
4182 | } | |||
4183 | ||||
4184 | return has_reversed; | |||
4185 | } | |||
4186 | ||||
4187 | ||||
4188 | /** | |||
4189 | * Get the number of list items for a list owner. | |||
4190 | * | |||
4191 | * \param[in] list_owner DOM node to count list items for. | |||
4192 | * \param[in] count_out Returns list item count on success. | |||
4193 | * \return true on success, otherwise false. | |||
4194 | */ | |||
4195 | static bool_Bool | |||
4196 | layout__get_list_item_count( | |||
4197 | dom_node *list_owner, dom_long *count_out) | |||
4198 | { | |||
4199 | dom_html_element_type tag_type; | |||
4200 | dom_exception exc; | |||
4201 | dom_node *child; | |||
4202 | int count; | |||
4203 | ||||
4204 | if (list_owner == NULL((void*)0)) { | |||
4205 | return false0; | |||
4206 | } | |||
4207 | ||||
4208 | if (!layout__get_element_tag(list_owner, &tag_type)) { | |||
4209 | return false0; | |||
4210 | } | |||
4211 | ||||
4212 | if (tag_type != DOM_HTML_ELEMENT_TYPE_OL && | |||
4213 | tag_type != DOM_HTML_ELEMENT_TYPE_UL) { | |||
4214 | return false0; | |||
4215 | } | |||
4216 | ||||
4217 | exc = dom_node_get_first_child(list_owner, &child)dom_node_get_first_child( (dom_node *) (list_owner), (dom_node **) (&child)); | |||
4218 | if (exc != DOM_NO_ERR) { | |||
4219 | return false0; | |||
4220 | } | |||
4221 | ||||
4222 | count = 0; | |||
4223 | while (child != NULL((void*)0)) { | |||
4224 | dom_node *temp_node; | |||
4225 | ||||
4226 | if (layout__check_element_type(child, | |||
4227 | DOM_HTML_ELEMENT_TYPE_LI)) { | |||
4228 | struct box *child_box; | |||
4229 | 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)) | |||
4230 | 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)) | |||
4231 | &child_box)dom_node_get_user_data( (dom_node *) (child), (corestring_dom___ns_key_box_node_data ), (void **) (&child_box)) != DOM_NO_ERR) { | |||
4232 | dom_node_unref(child)dom_node_unref((dom_node *) (child)); | |||
4233 | return false0; | |||
4234 | } | |||
4235 | ||||
4236 | if (child_box != NULL((void*)0) && | |||
4237 | child_box->list_marker != NULL((void*)0)) { | |||
4238 | count++; | |||
4239 | } | |||
4240 | } | |||
4241 | ||||
4242 | exc = dom_node_get_next_sibling(child, &temp_node)dom_node_get_next_sibling( (dom_node *) (child), (dom_node ** ) (&temp_node)); | |||
4243 | dom_node_unref(child)dom_node_unref((dom_node *) (child)); | |||
4244 | if (exc != DOM_NO_ERR) { | |||
4245 | return false0; | |||
4246 | } | |||
4247 | ||||
4248 | child = temp_node; | |||
4249 | } | |||
4250 | ||||
4251 | *count_out = count; | |||
4252 | return true1; | |||
4253 | } | |||
4254 | ||||
4255 | ||||
4256 | /** | |||
4257 | * Handle list item counting, if this is a list owner box. | |||
4258 | * | |||
4259 | * \param[in] box Box to do list item counting for. | |||
4260 | */ | |||
4261 | static void | |||
4262 | layout__ordered_list_count( | |||
4263 | struct box *box) | |||
4264 | { | |||
4265 | dom_html_element_type tag_type; | |||
4266 | dom_exception exc; | |||
4267 | dom_node *child; | |||
4268 | int step = 1; | |||
4269 | dom_long next; | |||
4270 | ||||
4271 | if (box->node == NULL((void*)0)) { | |||
4272 | return; | |||
4273 | } | |||
4274 | ||||
4275 | if (!layout__get_element_tag(box->node, &tag_type)) { | |||
4276 | return; | |||
4277 | } | |||
4278 | ||||
4279 | if (tag_type != DOM_HTML_ELEMENT_TYPE_OL && | |||
4280 | tag_type != DOM_HTML_ELEMENT_TYPE_UL) { | |||
4281 | return; | |||
4282 | } | |||
4283 | ||||
4284 | next = 1; | |||
4285 | if (tag_type == DOM_HTML_ELEMENT_TYPE_OL) { | |||
4286 | bool_Bool have_start = layout__get_ol_start(box->node, &next); | |||
4287 | bool_Bool have_reversed = layout__get_ol_reversed(box->node); | |||
4288 | ||||
4289 | if (have_reversed) { | |||
4290 | step = -1; | |||
4291 | } | |||
4292 | ||||
4293 | if (!have_start && have_reversed) { | |||
4294 | layout__get_list_item_count(box->node, &next); | |||
4295 | } | |||
4296 | } | |||
4297 | ||||
4298 | exc = dom_node_get_first_child(box->node, &child)dom_node_get_first_child( (dom_node *) (box->node), (dom_node **) (&child)); | |||
4299 | if (exc != DOM_NO_ERR) { | |||
4300 | return; | |||
4301 | } | |||
4302 | ||||
4303 | while (child != NULL((void*)0)) { | |||
4304 | dom_node *temp_node; | |||
4305 | ||||
4306 | if (layout__check_element_type(child, | |||
4307 | DOM_HTML_ELEMENT_TYPE_LI)) { | |||
4308 | struct box *child_box; | |||
4309 | ||||
4310 | 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)) | |||
4311 | 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)) | |||
4312 | &child_box)dom_node_get_user_data( (dom_node *) (child), (corestring_dom___ns_key_box_node_data ), (void **) (&child_box)) != DOM_NO_ERR) { | |||
4313 | dom_node_unref(child)dom_node_unref((dom_node *) (child)); | |||
4314 | return; | |||
4315 | } | |||
4316 | ||||
4317 | if (child_box != NULL((void*)0) && | |||
4318 | child_box->list_marker != NULL((void*)0)) { | |||
4319 | dom_long value; | |||
4320 | struct box *marker = child_box->list_marker; | |||
4321 | if (layout__get_li_value(child, &value)) { | |||
4322 | marker->list_value = value; | |||
4323 | next = marker->list_value; | |||
4324 | } else { | |||
4325 | marker->list_value = next; | |||
4326 | } | |||
4327 | next += step; | |||
4328 | } | |||
4329 | } | |||
4330 | ||||
4331 | exc = dom_node_get_next_sibling(child, &temp_node)dom_node_get_next_sibling( (dom_node *) (child), (dom_node ** ) (&temp_node)); | |||
4332 | dom_node_unref(child)dom_node_unref((dom_node *) (child)); | |||
4333 | if (exc != DOM_NO_ERR) { | |||
4334 | return; | |||
4335 | } | |||
4336 | ||||
4337 | child = temp_node; | |||
4338 | } | |||
4339 | } | |||
4340 | ||||
4341 | /** | |||
4342 | * Set up the marker text for a numerical list item. | |||
4343 | * | |||
4344 | * \param[in] content The HTML content. | |||
4345 | * \param[in] box The list item's main box. | |||
4346 | */ | |||
4347 | static void | |||
4348 | layout__set_numerical_marker_text( | |||
4349 | const html_content *content, | |||
4350 | struct box *box) | |||
4351 | { | |||
4352 | struct box *marker = box->list_marker; | |||
4353 | size_t counter_len; | |||
4354 | css_error css_res; | |||
4355 | enum { | |||
4356 | /** | |||
4357 | * initial length of a list marker buffer | |||
4358 | * | |||
4359 | * enough for 9,999,999,999,999,999,999 in decimal | |||
4360 | * or five characters for 4-byte UTF-8. | |||
4361 | */ | |||
4362 | LIST_MARKER_SIZE = 20, | |||
4363 | }; | |||
4364 | ||||
4365 | marker->text = talloc_array(content->bctx, char, LIST_MARKER_SIZE)(char *)_talloc_array(content->bctx, sizeof(char), LIST_MARKER_SIZE , "char"); | |||
4366 | if (marker->text == NULL((void*)0)) { | |||
4367 | return; | |||
4368 | } | |||
4369 | ||||
4370 | css_res = css_computed_format_list_style(box->style, marker->list_value, | |||
4371 | marker->text, LIST_MARKER_SIZE, &counter_len); | |||
4372 | if (css_res == CSS_OK) { | |||
4373 | if (counter_len > LIST_MARKER_SIZE) { | |||
4374 | /* Use computed size as marker did not fit in | |||
4375 | * default allocation. */ | |||
4376 | marker->text = talloc_realloc(content->bctx,(char *)_talloc_realloc_array(content->bctx, marker->text , sizeof(char), counter_len, "char") | |||
4377 | marker->text,(char *)_talloc_realloc_array(content->bctx, marker->text , sizeof(char), counter_len, "char") | |||
4378 | char,(char *)_talloc_realloc_array(content->bctx, marker->text , sizeof(char), counter_len, "char") | |||
4379 | counter_len)(char *)_talloc_realloc_array(content->bctx, marker->text , sizeof(char), counter_len, "char"); | |||
4380 | if (marker->text == NULL((void*)0)) { | |||
4381 | return; | |||
4382 | } | |||
4383 | css_computed_format_list_style(box->style, | |||
4384 | marker->list_value, marker->text, | |||
4385 | counter_len, &counter_len); | |||
4386 | } | |||
4387 | marker->length = counter_len; | |||
4388 | } | |||
4389 | } | |||
4390 | ||||
4391 | /** | |||
4392 | * Find out if box's style represents a numerical list style type. | |||
4393 | * | |||
4394 | * \param[in] b Box with style to test. | |||
4395 | * \return true if box has numerical list style type, false otherwise. | |||
4396 | */ | |||
4397 | static bool_Bool | |||
4398 | layout__list_item_is_numerical( | |||
4399 | const struct box *b) | |||
4400 | { | |||
4401 | enum css_list_style_type_e t = css_computed_list_style_type(b->style); | |||
4402 | ||||
4403 | switch (t) { | |||
4404 | case CSS_LIST_STYLE_TYPE_DISC: /* Fall through. */ | |||
4405 | case CSS_LIST_STYLE_TYPE_CIRCLE: /* Fall through. */ | |||
4406 | case CSS_LIST_STYLE_TYPE_SQUARE: /* Fall through. */ | |||
4407 | case CSS_LIST_STYLE_TYPE_NONE: | |||
4408 | return false0; | |||
4409 | ||||
4410 | default: | |||
4411 | return true1; | |||
4412 | } | |||
4413 | } | |||
4414 | ||||
4415 | /** | |||
4416 | * Layout list markers. | |||
4417 | */ | |||
4418 | static void | |||
4419 | layout_lists(const html_content *content, struct box *box) | |||
4420 | { | |||
4421 | struct box *child; | |||
4422 | ||||
4423 | layout__ordered_list_count(box); | |||
4424 | ||||
4425 | for (child = box->children; child; child = child->next) { | |||
4426 | if (child->list_marker) { | |||
4427 | struct box *marker = child->list_marker; | |||
4428 | ||||
4429 | if (layout__list_item_is_numerical(child)) { | |||
4430 | if (marker->text == NULL((void*)0)) { | |||
4431 | layout__set_numerical_marker_text( | |||
4432 | content, child); | |||
4433 | } | |||
4434 | } | |||
4435 | if (marker->object) { | |||
4436 | marker->width = | |||
4437 | content_get_width(marker->object); | |||
4438 | marker->x = -marker->width; | |||
4439 | marker->height = | |||
4440 | content_get_height(marker->object); | |||
4441 | marker->y = (line_height( | |||
4442 | &content->unit_len_ctx, | |||
4443 | marker->style) - | |||
4444 | marker->height) / 2; | |||
4445 | } else if (marker->text) { | |||
4446 | if (marker->width == UNKNOWN_WIDTH2147483647) { | |||
4447 | plot_font_style_t fstyle; | |||
4448 | font_plot_style_from_css( | |||
4449 | &content->unit_len_ctx, | |||
4450 | marker->style, | |||
4451 | &fstyle); | |||
4452 | content->font_func->width(&fstyle, | |||
4453 | marker->text, | |||
4454 | marker->length, | |||
4455 | &marker->width); | |||
4456 | marker->flags |= MEASURED; | |||
4457 | } | |||
4458 | marker->x = -marker->width; | |||
4459 | marker->y = 0; | |||
4460 | marker->height = line_height( | |||
4461 | &content->unit_len_ctx, | |||
4462 | marker->style); | |||
4463 | } else { | |||
4464 | marker->x = 0; | |||
4465 | marker->y = 0; | |||
4466 | marker->width = 0; | |||
4467 | marker->height = 0; | |||
4468 | } | |||
4469 | /* Gap between marker and content */ | |||
4470 | marker->x -= 4; | |||
4471 | } | |||
4472 | layout_lists(content, child); | |||
4473 | } | |||
4474 | } | |||
4475 | ||||
4476 | ||||
4477 | /** | |||
4478 | * Compute box offsets for a relatively or absolutely positioned box with | |||
4479 | * respect to a box. | |||
4480 | * | |||
4481 | * \param unit_len_ctx Length conversion context | |||
4482 | * \param box box to compute offsets for | |||
4483 | * \param containing_block box to compute percentages with respect to | |||
4484 | * \param top updated to top offset, or AUTO | |||
4485 | * \param right updated to right offset, or AUTO | |||
4486 | * \param bottom updated to bottom offset, or AUTO | |||
4487 | * \param left updated to left offset, or AUTO | |||
4488 | * | |||
4489 | * See CSS 2.1 9.3.2. containing_block must have width and height. | |||
4490 | */ | |||
4491 | static void | |||
4492 | layout_compute_offsets(const css_unit_ctx *unit_len_ctx, | |||
4493 | struct box *box, | |||
4494 | struct box *containing_block, | |||
4495 | int *top, | |||
4496 | int *right, | |||
4497 | int *bottom, | |||
4498 | int *left) | |||
4499 | { | |||
4500 | uint32_t type; | |||
4501 | css_fixed value = 0; | |||
4502 | css_unit unit = CSS_UNIT_PX; | |||
4503 | ||||
4504 | assert(containing_block->width != UNKNOWN_WIDTH)((containing_block->width != 2147483647) ? (void) (0) : __assert_fail ("containing_block->width != UNKNOWN_WIDTH", "content/handlers/html/layout.c" , 4504, __extension__ __PRETTY_FUNCTION__)); | |||
4505 | assert(containing_block->width != AUTO)((containing_block->width != (-2147483647 -1)) ? (void) (0 ) : __assert_fail ("containing_block->width != AUTO", "content/handlers/html/layout.c" , 4505, __extension__ __PRETTY_FUNCTION__)); | |||
4506 | assert(containing_block->height != AUTO)((containing_block->height != (-2147483647 -1)) ? (void) ( 0) : __assert_fail ("containing_block->height != AUTO", "content/handlers/html/layout.c" , 4506, __extension__ __PRETTY_FUNCTION__)); | |||
4507 | ||||
4508 | /* left */ | |||
4509 | type = css_computed_left(box->style, &value, &unit); | |||
4510 | if (type == CSS_LEFT_SET) { | |||
4511 | if (unit == CSS_UNIT_PCT) { | |||
4512 | *left = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->width)), ( 0x00019000)))) >> 10)) | |||
4513 | containing_block->width)((((css_divide_fixed(((value * containing_block->width)), ( 0x00019000)))) >> 10)); | |||
4514 | } else { | |||
4515 | *left = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
4516 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
4517 | value, unit))((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10); | |||
4518 | } | |||
4519 | } else { | |||
4520 | *left = AUTO(-2147483647 -1); | |||
4521 | } | |||
4522 | ||||
4523 | /* right */ | |||
4524 | type = css_computed_right(box->style, &value, &unit); | |||
4525 | if (type == CSS_RIGHT_SET) { | |||
4526 | if (unit == CSS_UNIT_PCT) { | |||
4527 | *right = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->width)), ( 0x00019000)))) >> 10)) | |||
4528 | containing_block->width)((((css_divide_fixed(((value * containing_block->width)), ( 0x00019000)))) >> 10)); | |||
4529 | } else { | |||
4530 | *right = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
4531 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
4532 | value, unit))((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10); | |||
4533 | } | |||
4534 | } else { | |||
4535 | *right = AUTO(-2147483647 -1); | |||
4536 | } | |||
4537 | ||||
4538 | /* top */ | |||
4539 | type = css_computed_top(box->style, &value, &unit); | |||
4540 | if (type == CSS_TOP_SET) { | |||
4541 | if (unit == CSS_UNIT_PCT) { | |||
4542 | *top = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)) | |||
4543 | containing_block->height)((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)); | |||
4544 | } else { | |||
4545 | *top = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
4546 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
4547 | value, unit))((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10); | |||
4548 | } | |||
4549 | } else { | |||
4550 | *top = AUTO(-2147483647 -1); | |||
4551 | } | |||
4552 | ||||
4553 | /* bottom */ | |||
4554 | type = css_computed_bottom(box->style, &value, &unit); | |||
4555 | if (type == CSS_BOTTOM_SET) { | |||
4556 | if (unit == CSS_UNIT_PCT) { | |||
4557 | *bottom = FPCT_OF_INT_TOINT(value,((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)) | |||
4558 | containing_block->height)((((css_divide_fixed(((value * containing_block->height)), (0x00019000)))) >> 10)); | |||
4559 | } else { | |||
4560 | *bottom = FIXTOINT(css_unit_len2device_px(((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
4561 | box->style, unit_len_ctx,((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10) | |||
4562 | value, unit))((css_unit_len2device_px( box->style, unit_len_ctx, value, unit)) >> 10); | |||
4563 | } | |||
4564 | } else { | |||
4565 | *bottom = AUTO(-2147483647 -1); | |||
4566 | } | |||
4567 | } | |||
4568 | ||||
4569 | ||||
4570 | /** | |||
4571 | * Layout and position an absolutely positioned box. | |||
4572 | * | |||
4573 | * \param box absolute box to layout and position | |||
4574 | * \param containing_block containing block | |||
4575 | * \param cx position of box relative to containing_block | |||
4576 | * \param cy position of box relative to containing_block | |||
4577 | * \param content memory pool for any new boxes | |||
4578 | * \return true on success, false on memory exhaustion | |||
4579 | */ | |||
4580 | static bool_Bool | |||
4581 | layout_absolute(struct box *box, | |||
4582 | struct box *containing_block, | |||
4583 | int cx, int cy, | |||
4584 | html_content *content) | |||
4585 | { | |||
4586 | int static_left, static_top; /* static position */ | |||
4587 | int top, right, bottom, left; | |||
4588 | int width, height, max_width, min_width; | |||
4589 | int *margin = box->margin; | |||
4590 | int *padding = box->padding; | |||
4591 | struct box_border *border = box->border; | |||
4592 | int available_width = containing_block->width; | |||
4593 | int space; | |||
4594 | ||||
4595 | 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", 4598, __extension__ __PRETTY_FUNCTION__ )) | |||
4596 | 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", 4598, __extension__ __PRETTY_FUNCTION__ )) | |||
4597 | 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", 4598, __extension__ __PRETTY_FUNCTION__ )) | |||
4598 | 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", 4598, __extension__ __PRETTY_FUNCTION__ )); | |||
4599 | ||||
4600 | /* The static position is where the box would be if it was not | |||
4601 | * absolutely positioned. The x and y are filled in by | |||
4602 | * layout_block_context(). */ | |||
4603 | static_left = cx + box->x; | |||
4604 | static_top = cy + box->y; | |||
4605 | ||||
4606 | if (containing_block->type == BOX_BLOCK || | |||
4607 | containing_block->type == BOX_INLINE_BLOCK || | |||
4608 | containing_block->type == BOX_TABLE_CELL) { | |||
4609 | /* Block level container => temporarily increase containing | |||
4610 | * block dimensions to include padding (we restore this | |||
4611 | * again at the end) */ | |||
4612 | containing_block->width += containing_block->padding[LEFT] + | |||
4613 | containing_block->padding[RIGHT]; | |||
4614 | containing_block->height += containing_block->padding[TOP] + | |||
4615 | containing_block->padding[BOTTOM]; | |||
4616 | } | |||
4617 | ||||
4618 | layout_compute_offsets(&content->unit_len_ctx, box, containing_block, | |||
4619 | &top, &right, &bottom, &left); | |||
4620 | ||||
4621 | /* Pass containing block into layout_find_dimensions via the float | |||
4622 | * containing block box member. This is unused for absolutely positioned | |||
4623 | * boxes because a box can't be floated and absolutely positioned. */ | |||
4624 | box->float_container = containing_block; | |||
4625 | layout_find_dimensions(&content->unit_len_ctx, available_width, -1, | |||
4626 | box, box->style, &width, &height, | |||
4627 | &max_width, &min_width, 0, 0, | |||
4628 | margin, padding, border); | |||
4629 | box->float_container = NULL((void*)0); | |||
4630 | ||||
4631 | /* 10.3.7 */ | |||
4632 | 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, 4636, }; 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) | |||
4633 | "%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, 4636, }; 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) | |||
4634 | 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, 4636, }; 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) | |||
4635 | 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, 4636, }; 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) | |||
4636 | 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, 4636, }; 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); | |||
4637 | ||||
4638 | ||||
4639 | if (left == AUTO(-2147483647 -1) && width == AUTO(-2147483647 -1) && right == AUTO(-2147483647 -1)) { | |||
4640 | if (margin[LEFT] == AUTO(-2147483647 -1)) | |||
4641 | margin[LEFT] = 0; | |||
4642 | if (margin[RIGHT] == AUTO(-2147483647 -1)) | |||
4643 | margin[RIGHT] = 0; | |||
4644 | left = static_left; | |||
4645 | ||||
4646 | 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)) | |||
4647 | 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)); | |||
4648 | width -= box->margin[LEFT] + box->border[LEFT].width + | |||
4649 | box->padding[LEFT] + box->padding[RIGHT] + | |||
4650 | box->border[RIGHT].width + box->margin[RIGHT]; | |||
4651 | ||||
4652 | /* Adjust for {min|max}-width */ | |||
4653 | if (max_width >= 0 && width > max_width) width = max_width; | |||
4654 | if (width < min_width) width = min_width; | |||
4655 | ||||
4656 | right = containing_block->width - | |||
4657 | left - | |||
4658 | margin[LEFT] - border[LEFT].width - padding[LEFT] - | |||
4659 | width - | |||
4660 | padding[RIGHT] - border[RIGHT].width - margin[RIGHT]; | |||
4661 | } else if (left != AUTO(-2147483647 -1) && width != AUTO(-2147483647 -1) && right != AUTO(-2147483647 -1)) { | |||
4662 | ||||
4663 | /* Adjust for {min|max}-width */ | |||
4664 | if (max_width >= 0 && width > max_width) width = max_width; | |||
4665 | if (min_width > 0 && width < min_width) width = min_width; | |||
4666 | ||||
4667 | if (margin[LEFT] == AUTO(-2147483647 -1) && margin[RIGHT] == AUTO(-2147483647 -1)) { | |||
4668 | space = containing_block->width - | |||
4669 | left - border[LEFT].width - | |||
4670 | padding[LEFT] - width - padding[RIGHT] - | |||
4671 | border[RIGHT].width - right; | |||
4672 | if (space < 0) { | |||
4673 | margin[LEFT] = 0; | |||
4674 | margin[RIGHT] = space; | |||
4675 | } else { | |||
4676 | margin[LEFT] = margin[RIGHT] = space / 2; | |||
4677 | } | |||
4678 | } else if (margin[LEFT] == AUTO(-2147483647 -1)) { | |||
4679 | margin[LEFT] = containing_block->width - | |||
4680 | left - border[LEFT].width - | |||
4681 | padding[LEFT] - width - padding[RIGHT] - | |||
4682 | border[RIGHT].width - margin[RIGHT] - | |||
4683 | right; | |||
4684 | } else if (margin[RIGHT] == AUTO(-2147483647 -1)) { | |||
4685 | margin[RIGHT] = containing_block->width - | |||
4686 | left - margin[LEFT] - | |||
4687 | border[LEFT].width - | |||
4688 | padding[LEFT] - width - padding[RIGHT] - | |||
4689 | border[RIGHT].width - right; | |||
4690 | } else { | |||
4691 | right = containing_block->width - | |||
4692 | left - margin[LEFT] - | |||
4693 | border[LEFT].width - | |||
4694 | padding[LEFT] - width - padding[RIGHT] - | |||
4695 | border[RIGHT].width - margin[RIGHT]; | |||
4696 | } | |||
4697 | } else { | |||
4698 | if (margin[LEFT] == AUTO(-2147483647 -1)) | |||
4699 | margin[LEFT] = 0; | |||
4700 | if (margin[RIGHT] == AUTO(-2147483647 -1)) | |||
4701 | margin[RIGHT] = 0; | |||
4702 | ||||
4703 | if (left == AUTO(-2147483647 -1) && width == AUTO(-2147483647 -1) && right != AUTO(-2147483647 -1)) { | |||
4704 | available_width -= right; | |||
4705 | ||||
4706 | 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)) | |||
4707 | 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)); | |||
4708 | width -= box->margin[LEFT] + box->border[LEFT].width + | |||
4709 | box->padding[LEFT] + box->padding[RIGHT] + | |||
4710 | box->border[RIGHT].width + box->margin[RIGHT]; | |||
4711 | ||||
4712 | /* Adjust for {min|max}-width */ | |||
4713 | if (max_width >= 0 && width > max_width) | |||
4714 | width = max_width; | |||
4715 | if (width < min_width) | |||
4716 | width = min_width; | |||
4717 | ||||
4718 | left = containing_block->width - | |||
4719 | margin[LEFT] - border[LEFT].width - | |||
4720 | padding[LEFT] - width - padding[RIGHT] - | |||
4721 | border[RIGHT].width - margin[RIGHT] - | |||
4722 | right; | |||
4723 | } else if (left == AUTO(-2147483647 -1) && width != AUTO(-2147483647 -1) && right == AUTO(-2147483647 -1)) { | |||
4724 | ||||
4725 | /* Adjust for {min|max}-width */ | |||
4726 | if (max_width >= 0 && width > max_width) | |||
4727 | width = max_width; | |||
4728 | if (min_width > 0 && width < min_width) | |||
4729 | width = min_width; | |||
4730 | ||||
4731 | left = static_left; | |||
4732 | right = containing_block->width - | |||
4733 | left - margin[LEFT] - | |||
4734 | border[LEFT].width - | |||
4735 | padding[LEFT] - width - padding[RIGHT] - | |||
4736 | border[RIGHT].width - margin[RIGHT]; | |||
4737 | } else if (left != AUTO(-2147483647 -1) && width == AUTO(-2147483647 -1) && right == AUTO(-2147483647 -1)) { | |||
4738 | available_width -= left; | |||
4739 | ||||
4740 | 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)) | |||
4741 | 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)); | |||
4742 | width -= box->margin[LEFT] + box->border[LEFT].width + | |||
4743 | box->padding[LEFT] + box->padding[RIGHT] + | |||
4744 | box->border[RIGHT].width + box->margin[RIGHT]; | |||
4745 | ||||
4746 | /* Adjust for {min|max}-width */ | |||
4747 | if (max_width >= 0 && width > max_width) | |||
4748 | width = max_width; | |||
4749 | if (width < min_width) | |||
4750 | width = min_width; | |||
4751 | ||||
4752 | right = containing_block->width - | |||
4753 | left - margin[LEFT] - | |||
4754 | border[LEFT].width - | |||
4755 | padding[LEFT] - width - padding[RIGHT] - | |||
4756 | border[RIGHT].width - margin[RIGHT]; | |||
4757 | } else if (left == AUTO(-2147483647 -1) && width != AUTO(-2147483647 -1) && right != AUTO(-2147483647 -1)) { | |||
4758 | ||||
4759 | /* Adjust for {min|max}-width */ | |||
4760 | if (max_width >= 0 && width > max_width) | |||
4761 | width = max_width; | |||
4762 | if (width < min_width) | |||
4763 | width = min_width; | |||
4764 | ||||
4765 | left = containing_block->width - | |||
4766 | margin[LEFT] - border[LEFT].width - | |||
4767 | padding[LEFT] - width - padding[RIGHT] - | |||
4768 | border[RIGHT].width - margin[RIGHT] - | |||
4769 | right; | |||
4770 | } else if (left != AUTO(-2147483647 -1) && width == AUTO(-2147483647 -1) && right != AUTO(-2147483647 -1)) { | |||
4771 | width = containing_block->width - | |||
4772 | left - margin[LEFT] - | |||
4773 | border[LEFT].width - | |||
4774 | padding[LEFT] - padding[RIGHT] - | |||
4775 | border[RIGHT].width - margin[RIGHT] - | |||
4776 | right; | |||
4777 | ||||
4778 | /* Adjust for {min|max}-width */ | |||
4779 | if (max_width >= 0 && width > max_width) | |||
4780 | width = max_width; | |||
4781 | if (width < min_width) | |||
4782 | width = min_width; | |||
4783 | ||||
4784 | } else if (left != AUTO(-2147483647 -1) && width != AUTO(-2147483647 -1) && right == AUTO(-2147483647 -1)) { | |||
4785 | ||||
4786 | /* Adjust for {min|max}-width */ | |||
4787 | if (max_width >= 0 && width > max_width) | |||
4788 | width = max_width; | |||
4789 | if (width < min_width) | |||
4790 | width = min_width; | |||
4791 | ||||
4792 | right = containing_block->width - | |||
4793 | left - margin[LEFT] - | |||
4794 | border[LEFT].width - | |||
4795 | padding[LEFT] - width - padding[RIGHT] - | |||
4796 | border[RIGHT].width - margin[RIGHT]; | |||
4797 | } | |||
4798 | } | |||
4799 | ||||
4800 | 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, 4804, }; 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) | |||
4801 | "%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, 4804, }; 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) | |||
4802 | 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, 4804, }; 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) | |||
4803 | 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, 4804, }; 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) | |||
4804 | 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, 4804, }; 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); | |||
4805 | ||||
4806 | box->x = left + margin[LEFT] + border[LEFT].width - cx; | |||
4807 | if (containing_block->type == BOX_BLOCK || | |||
4808 | containing_block->type == BOX_INLINE_BLOCK || | |||
4809 | containing_block->type == BOX_TABLE_CELL) { | |||
4810 | /* Block-level ancestor => reset container's width */ | |||
4811 | containing_block->width -= containing_block->padding[LEFT] + | |||
4812 | containing_block->padding[RIGHT]; | |||
4813 | } else { | |||
4814 | /** \todo inline ancestors */ | |||
4815 | } | |||
4816 | box->width = width; | |||
4817 | box->height = height; | |||
4818 | ||||
4819 | if (box->type == BOX_BLOCK || box->type == BOX_INLINE_BLOCK || | |||
4820 | box->object || box->flags & IFRAME) { | |||
4821 | if (!layout_block_context(box, -1, content)) | |||
4822 | return false0; | |||
4823 | } else if (box->type == BOX_TABLE) { | |||
4824 | /* layout_table also expects the containing block to be | |||
4825 | * stored in the float_container field */ | |||
4826 | box->float_container = containing_block; | |||
4827 | /* \todo layout_table considers margins etc. again */ | |||
4828 | if (!layout_table(box, width, content)) | |||
4829 | return false0; | |||
4830 | box->float_container = NULL((void*)0); | |||
4831 | layout_solve_width(box, box->parent->width, box->width, 0, 0, | |||
4832 | -1, -1); | |||
4833 | } else if (box->type == BOX_FLEX || box->type == BOX_INLINE_FLEX) { | |||
4834 | /* layout_table also expects the containing block to be | |||
4835 | * stored in the float_container field */ | |||
4836 | box->float_container = containing_block; | |||
4837 | if (!layout_flex(box, width, content)) | |||
4838 | return false0; | |||
4839 | box->float_container = NULL((void*)0); | |||
4840 | } | |||
4841 | ||||
4842 | /* 10.6.4 */ | |||
4843 | 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, 4847, }; 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) | |||
4844 | "%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, 4847, }; 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) | |||
4845 | 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, 4847, }; 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) | |||
4846 | 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, 4847, }; 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) | |||
4847 | 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, 4847, }; 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); | |||
4848 | ||||
4849 | if (top == AUTO(-2147483647 -1) && height == AUTO(-2147483647 -1) && bottom == AUTO(-2147483647 -1)) { | |||
4850 | top = static_top; | |||
4851 | height = box->height; | |||
4852 | if (margin[TOP] == AUTO(-2147483647 -1)) | |||
4853 | margin[TOP] = 0; | |||
4854 | if (margin[BOTTOM] == AUTO(-2147483647 -1)) | |||
4855 | margin[BOTTOM] = 0; | |||
4856 | bottom = containing_block->height - | |||
4857 | top - margin[TOP] - border[TOP].width - | |||
4858 | padding[TOP] - height - padding[BOTTOM] - | |||
4859 | border[BOTTOM].width - margin[BOTTOM]; | |||
4860 | } else if (top != AUTO(-2147483647 -1) && height != AUTO(-2147483647 -1) && bottom != AUTO(-2147483647 -1)) { | |||
4861 | if (margin[TOP] == AUTO(-2147483647 -1) && margin[BOTTOM] == AUTO(-2147483647 -1)) { | |||
4862 | space = containing_block->height - | |||
4863 | top - border[TOP].width - padding[TOP] - | |||
4864 | height - padding[BOTTOM] - | |||
4865 | border[BOTTOM].width - bottom; | |||
4866 | margin[TOP] = margin[BOTTOM] = space / 2; | |||
4867 | } else if (margin[TOP] == AUTO(-2147483647 -1)) { | |||
4868 | margin[TOP] = containing_block->height - | |||
4869 | top - border[TOP].width - padding[TOP] - | |||
4870 | height - padding[BOTTOM] - | |||
4871 | border[BOTTOM].width - margin[BOTTOM] - | |||
4872 | bottom; | |||
4873 | } else if (margin[BOTTOM] == AUTO(-2147483647 -1)) { | |||
4874 | margin[BOTTOM] = containing_block->height - | |||
4875 | top - margin[TOP] - border[TOP].width - | |||
4876 | padding[TOP] - height - | |||
4877 | padding[BOTTOM] - border[BOTTOM].width - | |||
4878 | bottom; | |||
4879 | } else { | |||
4880 | bottom = containing_block->height - | |||
4881 | top - margin[TOP] - border[TOP].width - | |||
4882 | padding[TOP] - height - | |||
4883 | padding[BOTTOM] - border[BOTTOM].width - | |||
4884 | margin[BOTTOM]; | |||
4885 | } | |||
4886 | } else { | |||
4887 | if (margin[TOP] == AUTO(-2147483647 -1)) | |||
4888 | margin[TOP] = 0; | |||
4889 | if (margin[BOTTOM] == AUTO(-2147483647 -1)) | |||
4890 | margin[BOTTOM] = 0; | |||
4891 | if (top == AUTO(-2147483647 -1) && height == AUTO(-2147483647 -1) && bottom != AUTO(-2147483647 -1)) { | |||
4892 | height = box->height; | |||
4893 | top = containing_block->height - | |||
4894 | margin[TOP] - border[TOP].width - | |||
4895 | padding[TOP] - height - | |||
4896 | padding[BOTTOM] - border[BOTTOM].width - | |||
4897 | margin[BOTTOM] - bottom; | |||
4898 | } else if (top == AUTO(-2147483647 -1) && height != AUTO(-2147483647 -1) && bottom == AUTO(-2147483647 -1)) { | |||
4899 | top = static_top; | |||
4900 | bottom = containing_block->height - | |||
4901 | top - margin[TOP] - border[TOP].width - | |||
4902 | padding[TOP] - height - | |||
4903 | padding[BOTTOM] - border[BOTTOM].width - | |||
4904 | margin[BOTTOM]; | |||
4905 | } else if (top != AUTO(-2147483647 -1) && height == AUTO(-2147483647 -1) && bottom == AUTO(-2147483647 -1)) { | |||
4906 | height = box->height; | |||
4907 | bottom = containing_block->height - | |||
4908 | top - margin[TOP] - border[TOP].width - | |||
4909 | padding[TOP] - height - | |||
4910 | padding[BOTTOM] - border[BOTTOM].width - | |||
4911 | margin[BOTTOM]; | |||
4912 | } else if (top == AUTO(-2147483647 -1) && height != AUTO(-2147483647 -1) && bottom != AUTO(-2147483647 -1)) { | |||
4913 | top = containing_block->height - | |||
4914 | margin[TOP] - border[TOP].width - | |||
4915 | padding[TOP] - height - | |||
4916 | padding[BOTTOM] - border[BOTTOM].width - | |||
4917 | margin[BOTTOM] - bottom; | |||
4918 | } else if (top != AUTO(-2147483647 -1) && height == AUTO(-2147483647 -1) && bottom != AUTO(-2147483647 -1)) { | |||
4919 | height = containing_block->height - | |||
4920 | top - margin[TOP] - border[TOP].width - | |||
4921 | padding[TOP] - padding[BOTTOM] - | |||
4922 | border[BOTTOM].width - margin[BOTTOM] - | |||
4923 | bottom; | |||
4924 | } else if (top != AUTO(-2147483647 -1) && height != AUTO(-2147483647 -1) && bottom == AUTO(-2147483647 -1)) { | |||
4925 | bottom = containing_block->height - | |||
4926 | top - margin[TOP] - border[TOP].width - | |||
4927 | padding[TOP] - height - | |||
4928 | padding[BOTTOM] - border[BOTTOM].width - | |||
4929 | margin[BOTTOM]; | |||
4930 | } | |||
4931 | } | |||
4932 | ||||
4933 | 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, 4937, }; 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) | |||
4934 | "%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, 4937, }; 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) | |||
4935 | 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, 4937, }; 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) | |||
4936 | 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, 4937, }; 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) | |||
4937 | 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, 4937, }; 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); | |||
4938 | ||||
4939 | box->y = top + margin[TOP] + border[TOP].width - cy; | |||
4940 | if (containing_block->type == BOX_BLOCK || | |||
4941 | containing_block->type == BOX_INLINE_BLOCK || | |||
4942 | containing_block->type == BOX_TABLE_CELL) { | |||
4943 | /* Block-level ancestor => reset container's height */ | |||
4944 | containing_block->height -= containing_block->padding[TOP] + | |||
4945 | containing_block->padding[BOTTOM]; | |||
4946 | } else { | |||
4947 | /** \todo Inline ancestors */ | |||
4948 | } | |||
4949 | box->height = height; | |||
4950 | layout_apply_minmax_height(&content->unit_len_ctx, box, containing_block); | |||
4951 | ||||
4952 | return true1; | |||
4953 | } | |||
4954 | ||||
4955 | ||||
4956 | /** | |||
4957 | * Recursively layout and position absolutely positioned boxes. | |||
4958 | * | |||
4959 | * \param box tree of boxes to layout | |||
4960 | * \param containing_block current containing block | |||
4961 | * \param cx position of box relative to containing_block | |||
4962 | * \param cy position of box relative to containing_block | |||
4963 | * \param content memory pool for any new boxes | |||
4964 | * \return true on success, false on memory exhaustion | |||
4965 | */ | |||
4966 | static bool_Bool | |||
4967 | layout_position_absolute(struct box *box, | |||
4968 | struct box *containing_block, | |||
4969 | int cx, int cy, | |||
4970 | html_content *content) | |||
4971 | { | |||
4972 | struct box *c; | |||
4973 | ||||
4974 | for (c = box->children; c; c = c->next) { | |||
4975 | if ((c->type == BOX_BLOCK || c->type == BOX_TABLE || | |||
4976 | c->type == BOX_INLINE_BLOCK || | |||
4977 | c->type == BOX_FLEX || | |||
4978 | c->type == BOX_INLINE_FLEX) && | |||
4979 | (css_computed_position(c->style) == | |||
4980 | CSS_POSITION_ABSOLUTE || | |||
4981 | css_computed_position(c->style) == | |||
4982 | CSS_POSITION_FIXED)) { | |||
4983 | if (!layout_absolute(c, containing_block, | |||
4984 | cx, cy, content)) | |||
4985 | return false0; | |||
4986 | if (!layout_position_absolute(c, c, 0, 0, content)) | |||
4987 | return false0; | |||
4988 | } else if (c->style && css_computed_position(c->style) == | |||
4989 | CSS_POSITION_RELATIVE) { | |||
4990 | if (!layout_position_absolute(c, c, 0, 0, content)) | |||
4991 | return false0; | |||
4992 | } else { | |||
4993 | int px, py; | |||
4994 | if (c->style && (css_computed_float(c->style) == | |||
4995 | CSS_FLOAT_LEFT || | |||
4996 | css_computed_float(c->style) == | |||
4997 | CSS_FLOAT_RIGHT)) { | |||
4998 | /* Float x/y coords are relative to nearest | |||
4999 | * ansestor with float_children, rather than | |||
5000 | * relative to parent. Need to get x/y relative | |||
5001 | * to parent */ | |||
5002 | struct box *p; | |||
5003 | px = c->x; | |||
5004 | py = c->y; | |||
5005 | for (p = box->parent; p && !p->float_children; | |||
5006 | p = p->parent) { | |||
5007 | px -= p->x; | |||
5008 | py -= p->y; | |||
5009 | } | |||
5010 | } else { | |||
5011 | /* Not a float, so box x/y coords are relative | |||
5012 | * to parent */ | |||
5013 | px = c->x; | |||
5014 | py = c->y; | |||
5015 | } | |||
5016 | if (!layout_position_absolute(c, containing_block, | |||
5017 | cx + px, cy + py, content)) | |||
5018 | return false0; | |||
5019 | } | |||
5020 | } | |||
5021 | ||||
5022 | return true1; | |||
5023 | } | |||
5024 | ||||
5025 | ||||
5026 | /** | |||
5027 | * Compute a box's relative offset as per CSS 2.1 9.4.3 | |||
5028 | * | |||
5029 | * \param unit_len_ctx Length conversion context | |||
5030 | * \param box Box to compute relative offsets for. | |||
5031 | * \param x Receives relative offset in x. | |||
5032 | * \param y Receives relative offset in y. | |||
5033 | */ | |||
5034 | static void layout_compute_relative_offset( | |||
5035 | const css_unit_ctx *unit_len_ctx, | |||
5036 | struct box *box, | |||
5037 | int *x, | |||
5038 | int *y) | |||
5039 | { | |||
5040 | int left, right, top, bottom; | |||
5041 | struct box *containing_block; | |||
5042 | ||||
5043 | 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", 5045, __extension__ __PRETTY_FUNCTION__ )) | |||
5044 | 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", 5045, __extension__ __PRETTY_FUNCTION__ )) | |||
5045 | 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", 5045, __extension__ __PRETTY_FUNCTION__ )); | |||
5046 | ||||
5047 | if (box->float_container && | |||
5048 | (css_computed_float(box->style) == CSS_FLOAT_LEFT || | |||
5049 | css_computed_float(box->style) == CSS_FLOAT_RIGHT)) { | |||
5050 | containing_block = box->float_container; | |||
5051 | } else { | |||
5052 | containing_block = box->parent; | |||
5053 | } | |||
5054 | ||||
5055 | layout_compute_offsets(unit_len_ctx, box, containing_block, | |||
5056 | &top, &right, &bottom, &left); | |||
5057 | ||||
5058 | if (left == AUTO(-2147483647 -1) && right == AUTO(-2147483647 -1)) | |||
5059 | left = right = 0; | |||
5060 | else if (left == AUTO(-2147483647 -1)) | |||
5061 | /* left is auto => computed = -right */ | |||
5062 | left = -right; | |||
5063 | else if (right == AUTO(-2147483647 -1)) | |||
5064 | /* right is auto => computed = -left */ | |||
5065 | right = -left; | |||
5066 | else { | |||
5067 | /* over constrained => examine direction property | |||
5068 | * of containing block */ | |||
5069 | if (containing_block->style && | |||
5070 | css_computed_direction( | |||
5071 | containing_block->style) == | |||
5072 | CSS_DIRECTION_RTL) { | |||
5073 | /* right wins */ | |||
5074 | left = -right; | |||
5075 | } else { | |||
5076 | /* assume LTR in all other cases */ | |||
5077 | right = -left; | |||
5078 | } | |||
5079 | } | |||
5080 | ||||
5081 | assert(left == -right)((left == -right) ? (void) (0) : __assert_fail ("left == -right" , "content/handlers/html/layout.c", 5081, __extension__ __PRETTY_FUNCTION__ )); | |||
5082 | ||||
5083 | if (top == AUTO(-2147483647 -1) && bottom == AUTO(-2147483647 -1)) { | |||
5084 | top = bottom = 0; | |||
5085 | } else if (top == AUTO(-2147483647 -1)) { | |||
5086 | top = -bottom; | |||
5087 | } else { | |||
5088 | /* bottom is AUTO, or neither are AUTO */ | |||
5089 | bottom = -top; | |||
5090 | } | |||
5091 | ||||
5092 | 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, 5093, }; nslog__log(&_nslog_ctx , "left %i, right %i, top %i, bottom %i", left, right, top, bottom ); } } while(0) | |||
5093 | 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, 5093, }; nslog__log(&_nslog_ctx , "left %i, right %i, top %i, bottom %i", left, right, top, bottom ); } } while(0); | |||
5094 | ||||
5095 | *x = left; | |||
5096 | *y = top; | |||
5097 | } | |||
5098 | ||||
5099 | ||||
5100 | /** | |||
5101 | * Adjust positions of relatively positioned boxes. | |||
5102 | * | |||
5103 | * \param unit_len_ctx Length conversion context | |||
5104 | * \param root box to adjust the position of | |||
5105 | * \param fp box which forms the block formatting context for children of | |||
5106 | * "root" which are floats | |||
5107 | * \param fx x offset due to intervening relatively positioned boxes | |||
5108 | * between current box, "root", and the block formatting context | |||
5109 | * box, "fp", for float children of "root" | |||
5110 | * \param fy y offset due to intervening relatively positioned boxes | |||
5111 | * between current box, "root", and the block formatting context | |||
5112 | * box, "fp", for float children of "root" | |||
5113 | */ | |||
5114 | static void | |||
5115 | layout_position_relative( | |||
5116 | const css_unit_ctx *unit_len_ctx, | |||
5117 | struct box *root, | |||
5118 | struct box *fp, | |||
5119 | int fx, | |||
5120 | int fy) | |||
5121 | { | |||
5122 | struct box *box; /* for children of "root" */ | |||
5123 | struct box *fn; /* for block formatting context box for children of | |||
5124 | * "box" */ | |||
5125 | struct box *fc; /* for float children of the block formatting context, | |||
5126 | * "fp" */ | |||
5127 | int x, y; /* for the offsets resulting from any relative | |||
5128 | * positioning on the current block */ | |||
5129 | int fnx, fny; /* for affsets which apply to flat children of "box" */ | |||
5130 | ||||
5131 | /**\todo ensure containing box is large enough after moving boxes */ | |||
5132 | ||||
5133 | assert(root)((root) ? (void) (0) : __assert_fail ("root", "content/handlers/html/layout.c" , 5133, __extension__ __PRETTY_FUNCTION__)); | |||
5134 | ||||
5135 | /* Normal children */ | |||
5136 | for (box = root->children; box; box = box->next) { | |||
5137 | ||||
5138 | if (box->type == BOX_TEXT) | |||
5139 | continue; | |||
5140 | ||||
5141 | /* If relatively positioned, get offsets */ | |||
5142 | if (box->style && css_computed_position(box->style) == | |||
5143 | CSS_POSITION_RELATIVE) | |||
5144 | layout_compute_relative_offset( | |||
5145 | unit_len_ctx, box, &x, &y); | |||
5146 | else | |||
5147 | x = y = 0; | |||
5148 | ||||
5149 | /* Adjust float coordinates. | |||
5150 | * (note float x and y are relative to their block formatting | |||
5151 | * context box and not their parent) */ | |||
5152 | if (box->style && (css_computed_float(box->style) == | |||
5153 | CSS_FLOAT_LEFT || | |||
5154 | css_computed_float(box->style) == | |||
5155 | CSS_FLOAT_RIGHT) && | |||
5156 | (fx != 0 || fy != 0)) { | |||
5157 | /* box is a float and there is a float offset to | |||
5158 | * apply */ | |||
5159 | for (fc = fp->float_children; fc; fc = fc->next_float) { | |||
5160 | if (box == fc->children) { | |||
5161 | /* Box is floated in the block | |||
5162 | * formatting context block, fp. | |||
5163 | * Apply float offsets. */ | |||
5164 | box->x += fx; | |||
5165 | box->y += fy; | |||
5166 | fx = fy = 0; | |||
5167 | } | |||
5168 | } | |||
5169 | } | |||
5170 | ||||
5171 | if (box->float_children) { | |||
5172 | fn = box; | |||
5173 | fnx = fny = 0; | |||
5174 | } else { | |||
5175 | fn = fp; | |||
5176 | fnx = fx + x; | |||
5177 | fny = fy + y; | |||
5178 | } | |||
5179 | ||||
5180 | /* recurse first */ | |||
5181 | layout_position_relative(unit_len_ctx, box, fn, fnx, fny); | |||
5182 | ||||
5183 | /* Ignore things we're not interested in. */ | |||
5184 | if (!box->style || (box->style && | |||
5185 | css_computed_position(box->style) != | |||
5186 | CSS_POSITION_RELATIVE)) | |||
5187 | continue; | |||
5188 | ||||
5189 | box->x += x; | |||
5190 | box->y += y; | |||
5191 | ||||
5192 | /* Handle INLINEs - their "children" are in fact | |||
5193 | * the sibling boxes between the INLINE and | |||
5194 | * INLINE_END boxes */ | |||
5195 | if (box->type == BOX_INLINE && box->inline_end) { | |||
5196 | struct box *b; | |||
5197 | for (b = box->next; b && b != box->inline_end; | |||
5198 | b = b->next) { | |||
5199 | b->x += x; | |||
5200 | b->y += y; | |||
5201 | } | |||
5202 | } | |||
5203 | } | |||
5204 | } | |||
5205 | ||||
5206 | ||||
5207 | /** | |||
5208 | * Find a box's bounding box relative to itself, i.e. the box's border edge box | |||
5209 | * | |||
5210 | * \param unit_len_ctx Length conversion context | |||
5211 | * \param box box find bounding box of | |||
5212 | * \param desc_x0 updated to left of box's bbox | |||
5213 | * \param desc_y0 updated to top of box's bbox | |||
5214 | * \param desc_x1 updated to right of box's bbox | |||
5215 | * \param desc_y1 updated to bottom of box's bbox | |||
5216 | */ | |||
5217 | static void | |||
5218 | layout_get_box_bbox( | |||
5219 | const css_unit_ctx *unit_len_ctx, | |||
5220 | struct box *box, | |||
5221 | int *desc_x0, int *desc_y0, | |||
5222 | int *desc_x1, int *desc_y1) | |||
5223 | { | |||
5224 | *desc_x0 = -box->border[LEFT].width; | |||
5225 | *desc_y0 = -box->border[TOP].width; | |||
5226 | *desc_x1 = box->padding[LEFT] + box->width + box->padding[RIGHT] + | |||
5227 | box->border[RIGHT].width; | |||
5228 | *desc_y1 = box->padding[TOP] + box->height + box->padding[BOTTOM] + | |||
5229 | box->border[BOTTOM].width; | |||
5230 | ||||
5231 | /* To stop the top of text getting clipped when css line-height is | |||
5232 | * reduced, we increase the top of the descendant bbox. */ | |||
5233 | if (box->type == BOX_BLOCK && box->style != NULL((void*)0) && | |||
5234 | css_computed_overflow_y(box->style) == | |||
5235 | CSS_OVERFLOW_VISIBLE && | |||
5236 | box->object == NULL((void*)0)) { | |||
5237 | css_fixed font_size = 0; | |||
5238 | css_unit font_unit = CSS_UNIT_PT; | |||
5239 | int text_height; | |||
5240 | ||||
5241 | css_computed_font_size(box->style, &font_size, &font_unit); | |||
5242 | text_height = css_unit_len2device_px(box->style, unit_len_ctx, | |||
5243 | font_size, font_unit); | |||
5244 | text_height = FIXTOINT(text_height * 3 / 4)((text_height * 3 / 4) >> 10); | |||
5245 | *desc_y0 = (*desc_y0 < -text_height) ? *desc_y0 : -text_height; | |||
5246 | } | |||
5247 | } | |||
5248 | ||||
5249 | ||||
5250 | /** | |||
5251 | * Apply changes to box descendant_[xy][01] values due to given child. | |||
5252 | * | |||
5253 | * \param unit_len_ctx Length conversion context | |||
5254 | * \param box box to update | |||
5255 | * \param child a box, which may affect box's descendant bbox | |||
5256 | * \param off_x offset to apply to child->x coord to treat as child of box | |||
5257 | * \param off_y offset to apply to child->y coord to treat as child of box | |||
5258 | */ | |||
5259 | static void | |||
5260 | layout_update_descendant_bbox( | |||
5261 | const css_unit_ctx *unit_len_ctx, | |||
5262 | struct box *box, | |||
5263 | struct box *child, | |||
5264 | int off_x, | |||
5265 | int off_y) | |||
5266 | { | |||
5267 | int child_desc_x0, child_desc_y0, child_desc_x1, child_desc_y1; | |||
5268 | ||||
5269 | /* get coordinates of child relative to box */ | |||
5270 | int child_x = child->x - off_x; | |||
5271 | int child_y = child->y - off_y; | |||
5272 | ||||
5273 | bool_Bool html_object = (child->object && | |||
5274 | content_get_type(child->object) == CONTENT_HTML); | |||
5275 | ||||
5276 | enum css_overflow_e overflow_x = CSS_OVERFLOW_VISIBLE; | |||
5277 | enum css_overflow_e overflow_y = CSS_OVERFLOW_VISIBLE; | |||
5278 | ||||
5279 | if (child->style != NULL((void*)0)) { | |||
5280 | overflow_x = css_computed_overflow_x(child->style); | |||
5281 | overflow_y = css_computed_overflow_y(child->style); | |||
5282 | } | |||
5283 | ||||
5284 | /* Get child's border edge */ | |||
5285 | layout_get_box_bbox(unit_len_ctx, child, | |||
5286 | &child_desc_x0, &child_desc_y0, | |||
5287 | &child_desc_x1, &child_desc_y1); | |||
5288 | ||||
5289 | if (overflow_x == CSS_OVERFLOW_VISIBLE && | |||
5290 | html_object == false0) { | |||
5291 | /* get child's descendant bbox relative to box */ | |||
5292 | child_desc_x0 = child->descendant_x0; | |||
5293 | child_desc_x1 = child->descendant_x1; | |||
5294 | } | |||
5295 | if (overflow_y == CSS_OVERFLOW_VISIBLE && | |||
5296 | html_object == false0) { | |||
5297 | /* get child's descendant bbox relative to box */ | |||
5298 | child_desc_y0 = child->descendant_y0; | |||
5299 | child_desc_y1 = child->descendant_y1; | |||
5300 | } | |||
5301 | ||||
5302 | child_desc_x0 += child_x; | |||
5303 | child_desc_y0 += child_y; | |||
5304 | child_desc_x1 += child_x; | |||
5305 | child_desc_y1 += child_y; | |||
5306 | ||||
5307 | /* increase box's descendant bbox to contain descendants */ | |||
5308 | if (child_desc_x0 < box->descendant_x0) | |||
5309 | box->descendant_x0 = child_desc_x0; | |||
5310 | if (child_desc_y0 < box->descendant_y0) | |||
5311 | box->descendant_y0 = child_desc_y0; | |||
5312 | if (box->descendant_x1 < child_desc_x1) | |||
5313 | box->descendant_x1 = child_desc_x1; | |||
5314 | if (box->descendant_y1 < child_desc_y1) | |||
5315 | box->descendant_y1 = child_desc_y1; | |||
5316 | } | |||
5317 | ||||
5318 | ||||
5319 | /** | |||
5320 | * Recursively calculate the descendant_[xy][01] values for a laid-out box tree | |||
5321 | * and inform iframe browser windows of their size and position. | |||
5322 | * | |||
5323 | * \param unit_len_ctx Length conversion context | |||
5324 | * \param box tree of boxes to update | |||
5325 | */ | |||
5326 | static void layout_calculate_descendant_bboxes( | |||
5327 | const css_unit_ctx *unit_len_ctx, | |||
5328 | struct box *box) | |||
5329 | { | |||
5330 | struct box *child; | |||
5331 | ||||
5332 | assert(box->width != UNKNOWN_WIDTH)((box->width != 2147483647) ? (void) (0) : __assert_fail ( "box->width != UNKNOWN_WIDTH", "content/handlers/html/layout.c" , 5332, __extension__ __PRETTY_FUNCTION__)); | |||
5333 | assert(box->height != AUTO)((box->height != (-2147483647 -1)) ? (void) (0) : __assert_fail ("box->height != AUTO", "content/handlers/html/layout.c", 5333, __extension__ __PRETTY_FUNCTION__)); | |||
5334 | /* assert((box->width >= 0) && (box->height >= 0)); */ | |||
5335 | ||||
5336 | /* Initialise box's descendant box to border edge box */ | |||
5337 | layout_get_box_bbox(unit_len_ctx, box, | |||
5338 | &box->descendant_x0, &box->descendant_y0, | |||
5339 | &box->descendant_x1, &box->descendant_y1); | |||
5340 | ||||
5341 | /* Extend it to contain HTML contents if box is replaced */ | |||
5342 | if (box->object && content_get_type(box->object) == CONTENT_HTML) { | |||
5343 | if (box->descendant_x1 < content_get_width(box->object)) | |||
5344 | box->descendant_x1 = content_get_width(box->object); | |||
5345 | if (box->descendant_y1 < content_get_height(box->object)) | |||
5346 | box->descendant_y1 = content_get_height(box->object); | |||
5347 | } | |||
5348 | ||||
5349 | if (box->iframe != NULL((void*)0)) { | |||
5350 | int x, y; | |||
5351 | box_coords(box, &x, &y); | |||
5352 | ||||
5353 | browser_window_set_position(box->iframe, x, y); | |||
5354 | browser_window_set_dimensions(box->iframe, | |||
5355 | box->width, box->height); | |||
5356 | browser_window_reformat(box->iframe, true1, | |||
5357 | box->width, box->height); | |||
5358 | } | |||
5359 | ||||
5360 | if (box->type == BOX_INLINE || box->type == BOX_TEXT) | |||
5361 | return; | |||
5362 | ||||
5363 | if (box->type == BOX_INLINE_END) { | |||
5364 | box = box->inline_end; | |||
5365 | for (child = box->next; child; | |||
5366 | child = child->next) { | |||
5367 | if (child->type == BOX_FLOAT_LEFT || | |||
5368 | child->type == BOX_FLOAT_RIGHT) | |||
5369 | continue; | |||
5370 | ||||
5371 | layout_update_descendant_bbox(unit_len_ctx, box, child, | |||
5372 | box->x, box->y); | |||
5373 | ||||
5374 | if (child == box->inline_end) | |||
5375 | break; | |||
5376 | } | |||
5377 | return; | |||
5378 | } | |||
5379 | ||||
5380 | if (box->flags & REPLACE_DIM) | |||
5381 | /* Box's children aren't displayed if the box is replaced */ | |||
5382 | return; | |||
5383 | ||||
5384 | for (child = box->children; child; child = child->next) { | |||
5385 | if (child->type == BOX_FLOAT_LEFT || | |||
5386 | child->type == BOX_FLOAT_RIGHT) | |||
5387 | continue; | |||
5388 | ||||
5389 | layout_calculate_descendant_bboxes(unit_len_ctx, child); | |||
5390 | ||||
5391 | if (box->style && css_computed_overflow_x(box->style) == | |||
5392 | CSS_OVERFLOW_HIDDEN && | |||
5393 | css_computed_overflow_y(box->style) == | |||
5394 | CSS_OVERFLOW_HIDDEN) | |||
5395 | continue; | |||
5396 | ||||
5397 | layout_update_descendant_bbox(unit_len_ctx, box, child, 0, 0); | |||
5398 | } | |||
5399 | ||||
5400 | for (child = box->float_children; child; child = child->next_float) { | |||
5401 | 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", 5402, __extension__ __PRETTY_FUNCTION__ )) | |||
5402 | 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", 5402, __extension__ __PRETTY_FUNCTION__ )); | |||
5403 | ||||
5404 | layout_calculate_descendant_bboxes(unit_len_ctx, child); | |||
5405 | ||||
5406 | layout_update_descendant_bbox(unit_len_ctx, box, child, 0, 0); | |||
5407 | } | |||
5408 | ||||
5409 | if (box->list_marker) { | |||
5410 | child = box->list_marker; | |||
5411 | layout_calculate_descendant_bboxes(unit_len_ctx, child); | |||
5412 | ||||
5413 | layout_update_descendant_bbox(unit_len_ctx, box, child, 0, 0); | |||
5414 | } | |||
5415 | } | |||
5416 | ||||
5417 | ||||
5418 | /* exported function documented in html/layout.h */ | |||
5419 | bool_Bool layout_document(html_content *content, int width, int height) | |||
5420 | { | |||
5421 | bool_Bool ret; | |||
5422 | struct box *doc = content->layout; | |||
5423 | const struct gui_layout_table *font_func = content->font_func; | |||
5424 | ||||
5425 | 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, 5427, }; nslog__log(&_nslog_ctx , "Doing layout to %ix%i of %s", width, height, nsurl_access( content_get_url( &content->base))); } } while(0) | |||
5426 | 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, 5427, }; nslog__log(&_nslog_ctx , "Doing layout to %ix%i of %s", width, height, nsurl_access( content_get_url( &content->base))); } } while(0) | |||
5427 | &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, 5427, }; nslog__log(&_nslog_ctx , "Doing layout to %ix%i of %s", width, height, nsurl_access( content_get_url( &content->base))); } } while(0); | |||
5428 | ||||
5429 | layout_minmax_block(doc, font_func, content); | |||
5430 | ||||
5431 | layout_block_find_dimensions(&content->unit_len_ctx, | |||
5432 | width, height, 0, 0, doc); | |||
5433 | doc->x = doc->margin[LEFT] + doc->border[LEFT].width; | |||
5434 | doc->y = doc->margin[TOP] + doc->border[TOP].width; | |||
5435 | width -= doc->margin[LEFT] + doc->border[LEFT].width + | |||
5436 | doc->padding[LEFT] + doc->padding[RIGHT] + | |||
5437 | doc->border[RIGHT].width + doc->margin[RIGHT]; | |||
5438 | if (width < 0) { | |||
5439 | width = 0; | |||
5440 | } | |||
5441 | doc->width = width; | |||
5442 | ||||
5443 | ret = layout_block_context(doc, height, content); | |||
5444 | ||||
5445 | /* make <html> and <body> fill available height */ | |||
5446 | if (doc->y + doc->padding[TOP] + doc->height + doc->padding[BOTTOM] + | |||
5447 | doc->border[BOTTOM].width + doc->margin[BOTTOM] < | |||
5448 | height) { | |||
5449 | doc->height = height - (doc->y + doc->padding[TOP] + | |||
5450 | doc->padding[BOTTOM] + | |||
5451 | doc->border[BOTTOM].width + | |||
5452 | doc->margin[BOTTOM]); | |||
5453 | if (doc->children) | |||
5454 | doc->children->height = doc->height - | |||
5455 | (doc->children->margin[TOP] + | |||
5456 | doc->children->border[TOP].width + | |||
5457 | doc->children->padding[TOP] + | |||
5458 | doc->children->padding[BOTTOM] + | |||
5459 | doc->children->border[BOTTOM].width + | |||
5460 | doc->children->margin[BOTTOM]); | |||
5461 | } | |||
5462 | ||||
5463 | layout_lists(content, doc); | |||
5464 | layout_position_absolute(doc, doc, 0, 0, content); | |||
5465 | layout_position_relative(&content->unit_len_ctx, doc, doc, 0, 0); | |||
5466 | ||||
5467 | layout_calculate_descendant_bboxes(&content->unit_len_ctx, doc); | |||
5468 | ||||
5469 | return ret; | |||
5470 | } |