| 3584 |
sourcerer |
1 |
/* |
|
|
2 |
* Copyright 2009 John-Mark Bell |
|
|
3 |
* |
|
|
4 |
* This file is part of NetSurf, http://www.netsurf-browser.org/ |
|
|
5 |
* |
|
|
6 |
* NetSurf is free software; you can redistribute it and/or modify |
|
|
7 |
* it under the terms of the GNU General Public License as published by |
|
|
8 |
* the Free Software Foundation; version 2 of the License. |
|
|
9 |
* |
|
|
10 |
* NetSurf is distributed in the hope that it will be useful, |
|
|
11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
|
12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
|
13 |
* GNU General Public License for more details. |
|
|
14 |
* |
|
|
15 |
* You should have received a copy of the GNU General Public License |
|
|
16 |
* along with this program. If not, see . |
|
|
17 |
*/ |
|
|
18 |
|
|
|
19 |
#include |
|
|
20 |
#include |
|
|
21 |
#include |
|
|
22 |
#include |
|
|
23 |
|
|
|
24 |
#include "content/content_protected.h" |
|
|
25 |
#include "content/urldb.h" |
|
|
26 |
#include "css/internal.h" |
|
|
27 |
#include "css/select.h" |
|
|
28 |
#include "css/utils.h" |
|
|
29 |
#include "desktop/gui.h" |
|
|
30 |
#include "desktop/options.h" |
|
|
31 |
#include "utils/corestrings.h" |
|
|
32 |
#include "utils/log.h" |
|
|
33 |
#include "utils/url.h" |
|
|
34 |
#include "utils/utils.h" |
|
|
35 |
|
|
|
36 |
static css_error node_name(void *pw, void *node, css_qname *qname); |
|
|
37 |
static css_error node_classes(void *pw, void *node, |
|
|
38 |
lwc_string ***classes, uint32_t *n_classes); |
|
|
39 |
static css_error node_id(void *pw, void *node, lwc_string **id); |
|
|
40 |
static css_error named_ancestor_node(void *pw, void *node, |
|
|
41 |
const css_qname *qname, void **ancestor); |
|
|
42 |
static css_error named_parent_node(void *pw, void *node, |
|
|
43 |
const css_qname *qname, void **parent); |
|
|
44 |
static css_error named_sibling_node(void *pw, void *node, |
|
|
45 |
const css_qname *qname, void **sibling); |
|
|
46 |
static css_error named_generic_sibling_node(void *pw, void *node, |
|
|
47 |
const css_qname *qname, void **sibling); |
|
|
48 |
static css_error parent_node(void *pw, void *node, void **parent); |
|
|
49 |
static css_error sibling_node(void *pw, void *node, void **sibling); |
|
|
50 |
static css_error node_has_name(void *pw, void *node, |
|
|
51 |
const css_qname *qname, bool *match); |
|
|
52 |
static css_error node_has_class(void *pw, void *node, |
|
|
53 |
lwc_string *name, bool *match); |
|
|
54 |
static css_error node_has_id(void *pw, void *node, |
|
|
55 |
lwc_string *name, bool *match); |
|
|
56 |
static css_error node_has_attribute(void *pw, void *node, |
|
|
57 |
const css_qname *qname, bool *match); |
|
|
58 |
static css_error node_has_attribute_equal(void *pw, void *node, |
|
|
59 |
const css_qname *qname, lwc_string *value, |
|
|
60 |
bool *match); |
|
|
61 |
static css_error node_has_attribute_dashmatch(void *pw, void *node, |
|
|
62 |
const css_qname *qname, lwc_string *value, |
|
|
63 |
bool *match); |
|
|
64 |
static css_error node_has_attribute_includes(void *pw, void *node, |
|
|
65 |
const css_qname *qname, lwc_string *value, |
|
|
66 |
bool *match); |
|
|
67 |
static css_error node_has_attribute_prefix(void *pw, void *node, |
|
|
68 |
const css_qname *qname, lwc_string *value, |
|
|
69 |
bool *match); |
|
|
70 |
static css_error node_has_attribute_suffix(void *pw, void *node, |
|
|
71 |
const css_qname *qname, lwc_string *value, |
|
|
72 |
bool *match); |
|
|
73 |
static css_error node_has_attribute_substring(void *pw, void *node, |
|
|
74 |
const css_qname *qname, lwc_string *value, |
|
|
75 |
bool *match); |
|
|
76 |
static css_error node_is_root(void *pw, void *node, bool *match); |
|
|
77 |
static css_error node_count_siblings(void *pw, void *node, |
|
|
78 |
bool same_name, bool after, int32_t *count); |
|
|
79 |
static css_error node_is_empty(void *pw, void *node, bool *match); |
|
|
80 |
static css_error node_is_link(void *pw, void *node, bool *match); |
|
|
81 |
static css_error node_is_visited(void *pw, void *node, bool *match); |
|
|
82 |
static css_error node_is_hover(void *pw, void *node, bool *match); |
|
|
83 |
static css_error node_is_active(void *pw, void *node, bool *match); |
|
|
84 |
static css_error node_is_focus(void *pw, void *node, bool *match); |
|
|
85 |
static css_error node_is_enabled(void *pw, void *node, bool *match); |
|
|
86 |
static css_error node_is_disabled(void *pw, void *node, bool *match); |
|
|
87 |
static css_error node_is_checked(void *pw, void *node, bool *match); |
|
|
88 |
static css_error node_is_target(void *pw, void *node, bool *match); |
|
|
89 |
static css_error node_is_lang(void *pw, void *node, |
|
|
90 |
lwc_string *lang, bool *match); |
|
|
91 |
static css_error node_presentational_hint(void *pw, void *node, |
|
|
92 |
uint32_t property, css_hint *hint); |
|
|
93 |
static css_error ua_default_for_property(void *pw, uint32_t property, |
|
|
94 |
css_hint *hint); |
|
|
95 |
|
|
|
96 |
static int cmp_colour_name(const void *a, const void *b); |
|
|
97 |
static bool parse_named_colour(const char *data, css_color *result); |
|
|
98 |
static bool parse_dimension(const char *data, bool strict, |
|
|
99 |
css_fixed *length, css_unit *unit); |
|
|
100 |
static bool parse_number(const char *data, bool non_negative, bool real, |
|
|
101 |
css_fixed *value, size_t *consumed); |
|
|
102 |
static bool parse_font_size(const char *size, uint8_t *val, |
|
|
103 |
css_fixed *len, css_unit *unit); |
|
|
104 |
|
|
|
105 |
static css_computed_style *nscss_get_initial_style(nscss_select_ctx *ctx, |
|
|
106 |
css_allocator_fn, void *pw); |
|
|
107 |
|
|
|
108 |
static bool isWhitespace(char c); |
|
|
109 |
static bool isHex(char c); |
|
|
110 |
static uint8_t charToHex(char c); |
|
|
111 |
|
|
|
112 |
/** |
|
|
113 |
* Selection callback table for libcss |
|
|
114 |
*/ |
|
|
115 |
static css_select_handler selection_handler = { |
|
|
116 |
CSS_SELECT_HANDLER_VERSION_1, |
|
|
117 |
|
|
|
118 |
node_name, |
|
|
119 |
node_classes, |
|
|
120 |
node_id, |
|
|
121 |
named_ancestor_node, |
|
|
122 |
named_parent_node, |
|
|
123 |
named_sibling_node, |
|
|
124 |
named_generic_sibling_node, |
|
|
125 |
parent_node, |
|
|
126 |
sibling_node, |
|
|
127 |
node_has_name, |
|
|
128 |
node_has_class, |
|
|
129 |
node_has_id, |
|
|
130 |
node_has_attribute, |
|
|
131 |
node_has_attribute_equal, |
|
|
132 |
node_has_attribute_dashmatch, |
|
|
133 |
node_has_attribute_includes, |
|
|
134 |
node_has_attribute_prefix, |
|
|
135 |
node_has_attribute_suffix, |
|
|
136 |
node_has_attribute_substring, |
|
|
137 |
node_is_root, |
|
|
138 |
node_count_siblings, |
|
|
139 |
node_is_empty, |
|
|
140 |
node_is_link, |
|
|
141 |
node_is_visited, |
|
|
142 |
node_is_hover, |
|
|
143 |
node_is_active, |
|
|
144 |
node_is_focus, |
|
|
145 |
node_is_enabled, |
|
|
146 |
node_is_disabled, |
|
|
147 |
node_is_checked, |
|
|
148 |
node_is_target, |
|
|
149 |
node_is_lang, |
|
|
150 |
node_presentational_hint, |
|
|
151 |
ua_default_for_property, |
|
|
152 |
nscss_compute_font_size |
|
|
153 |
}; |
|
|
154 |
|
|
|
155 |
/** |
|
|
156 |
* Create an inline style |
|
|
157 |
* |
|
|
158 |
* \param data Source data |
|
|
159 |
* \param len Length of data in bytes |
|
|
160 |
* \param charset Charset of data, or NULL if unknown |
|
|
161 |
* \param url URL of document containing data |
|
|
162 |
* \param allow_quirks True to permit CSS parsing quirks |
|
|
163 |
* \param alloc Memory allocation function |
|
|
164 |
* \param pw Private word for allocator |
|
|
165 |
* \return Pointer to stylesheet, or NULL on failure. |
|
|
166 |
*/ |
|
|
167 |
css_stylesheet *nscss_create_inline_style(const uint8_t *data, size_t len, |
|
|
168 |
const char *charset, const char *url, bool allow_quirks, |
|
|
169 |
css_allocator_fn alloc, void *pw) |
|
|
170 |
{ |
|
|
171 |
css_stylesheet_params params; |
|
|
172 |
css_stylesheet *sheet; |
|
|
173 |
css_error error; |
|
|
174 |
|
|
|
175 |
params.params_version = CSS_STYLESHEET_PARAMS_VERSION_1; |
|
|
176 |
params.level = CSS_LEVEL_DEFAULT; |
|
|
177 |
params.charset = charset; |
|
|
178 |
params.url = url; |
|
|
179 |
params.title = NULL; |
|
|
180 |
params.allow_quirks = allow_quirks; |
|
|
181 |
params.inline_style = true; |
|
|
182 |
params.resolve = nscss_resolve_url; |
|
|
183 |
params.resolve_pw = NULL; |
|
|
184 |
params.import = NULL; |
|
|
185 |
params.import_pw = NULL; |
|
|
186 |
params.color = gui_system_colour; |
|
|
187 |
params.color_pw = NULL; |
|
|
188 |
params.font = NULL; |
|
|
189 |
params.font_pw = NULL; |
|
|
190 |
|
|
|
191 |
error = css_stylesheet_create(¶ms, alloc, pw, &sheet); |
|
|
192 |
if (error != CSS_OK) { |
|
|
193 |
LOG(("Failed creating sheet: %d", error)); |
|
|
194 |
return NULL; |
|
|
195 |
} |
|
|
196 |
|
|
|
197 |
error = css_stylesheet_append_data(sheet, data, len); |
|
|
198 |
if (error != CSS_OK && error != CSS_NEEDDATA) { |
|
|
199 |
LOG(("failed appending data: %d", error)); |
|
|
200 |
css_stylesheet_destroy(sheet); |
|
|
201 |
return NULL; |
|
|
202 |
} |
|
|
203 |
|
|
|
204 |
error = css_stylesheet_data_done(sheet); |
|
|
205 |
if (error != CSS_OK) { |
|
|
206 |
LOG(("failed completing parse: %d", error)); |
|
|
207 |
css_stylesheet_destroy(sheet); |
|
|
208 |
return NULL; |
|
|
209 |
} |
|
|
210 |
|
|
|
211 |
return sheet; |
|
|
212 |
} |
|
|
213 |
|
|
|
214 |
/** |
|
|
215 |
* Get a style selection results (partial computed styles) for an element |
|
|
216 |
* |
|
|
217 |
* \param ctx CSS selection context |
|
|
218 |
* \param n Element to select for |
|
|
219 |
* \param media Permitted media types |
|
|
220 |
* \param inline_style Inline style associated with element, or NULL |
|
|
221 |
* \param alloc Memory allocation function |
|
|
222 |
* \param pw Private word for allocator |
|
|
223 |
* \return Pointer to selection results (containing partial computed styles), |
|
|
224 |
* or NULL on failure |
|
|
225 |
*/ |
|
|
226 |
css_select_results *nscss_get_style(nscss_select_ctx *ctx, dom_node *n, |
|
|
227 |
uint64_t media, const css_stylesheet *inline_style, |
|
|
228 |
css_allocator_fn alloc, void *pw) |
|
|
229 |
{ |
|
|
230 |
css_select_results *styles; |
|
|
231 |
css_error error; |
|
|
232 |
|
|
|
233 |
error = css_select_style(ctx->ctx, n, media, inline_style, |
|
|
234 |
&selection_handler, ctx, &styles); |
|
|
235 |
if (error != CSS_OK) { |
|
|
236 |
return NULL; |
|
|
237 |
} |
|
|
238 |
|
|
|
239 |
return styles; |
|
|
240 |
} |
|
|
241 |
|
|
|
242 |
/** |
|
|
243 |
* Get an initial style |
|
|
244 |
* |
|
|
245 |
* \param ctx CSS selection context |
|
|
246 |
* \param alloc Memory allocation function |
|
|
247 |
* \param pw Private word for allocator |
|
|
248 |
* \return Pointer to partial computed style, or NULL on failure |
|
|
249 |
*/ |
|
|
250 |
css_computed_style *nscss_get_initial_style(nscss_select_ctx *ctx, |
|
|
251 |
css_allocator_fn alloc, void *pw) |
|
|
252 |
{ |
|
|
253 |
css_computed_style *style; |
|
|
254 |
css_error error; |
|
|
255 |
|
|
|
256 |
error = css_computed_style_create(alloc, pw, &style); |
|
|
257 |
if (error != CSS_OK) |
|
|
258 |
return NULL; |
|
|
259 |
|
|
|
260 |
error = css_computed_style_initialise(style, &selection_handler, ctx); |
|
|
261 |
if (error != CSS_OK) { |
|
|
262 |
css_computed_style_destroy(style); |
|
|
263 |
return NULL; |
|
|
264 |
} |
|
|
265 |
|
|
|
266 |
return style; |
|
|
267 |
} |
|
|
268 |
|
|
|
269 |
/** |
|
|
270 |
* Get a blank style |
|
|
271 |
* |
|
|
272 |
* \param ctx CSS selection context |
|
|
273 |
* \param parent Parent style to cascade inherited properties from |
|
|
274 |
* \param alloc Memory allocation function |
|
|
275 |
* \param pw Private word for allocator |
|
|
276 |
* \return Pointer to blank style, or NULL on failure |
|
|
277 |
*/ |
|
|
278 |
css_computed_style *nscss_get_blank_style(nscss_select_ctx *ctx, |
|
|
279 |
const css_computed_style *parent, |
|
|
280 |
css_allocator_fn alloc, void *pw) |
|
|
281 |
{ |
|
|
282 |
css_computed_style *partial; |
|
|
283 |
css_error error; |
|
|
284 |
|
|
|
285 |
partial = nscss_get_initial_style(ctx, alloc, pw); |
|
|
286 |
if (partial == NULL) |
|
|
287 |
return NULL; |
|
|
288 |
|
|
|
289 |
error = css_computed_style_compose(parent, partial, |
|
|
290 |
nscss_compute_font_size, NULL, partial); |
|
|
291 |
if (error != CSS_OK) { |
|
|
292 |
css_computed_style_destroy(partial); |
|
|
293 |
return NULL; |
|
|
294 |
} |
|
|
295 |
|
|
|
296 |
return partial; |
|
|
297 |
} |
|
|
298 |
|
|
|
299 |
/** |
|
|
300 |
* Font size computation callback for libcss |
|
|
301 |
* |
|
|
302 |
* \param pw Computation context |
|
|
303 |
* \param parent Parent font size (absolute) |
|
|
304 |
* \param size Font size to compute |
|
|
305 |
* \return CSS_OK on success |
|
|
306 |
* |
|
|
307 |
* \post \a size will be an absolute font size |
|
|
308 |
*/ |
|
|
309 |
css_error nscss_compute_font_size(void *pw, const css_hint *parent, |
|
|
310 |
css_hint *size) |
|
|
311 |
{ |
|
|
312 |
/** |
|
|
313 |
* Table of font-size keyword scale factors |
|
|
314 |
* |
|
|
315 |
* These are multiplied by the configured default font size |
|
|
316 |
* to produce an absolute size for the relevant keyword |
|
|
317 |
*/ |
|
|
318 |
static const css_fixed factors[] = { |
|
|
319 |
FLTTOFIX(0.5625), /* xx-small */ |
|
|
320 |
FLTTOFIX(0.6250), /* x-small */ |
|
|
321 |
FLTTOFIX(0.8125), /* small */ |
|
|
322 |
FLTTOFIX(1.0000), /* medium */ |
|
|
323 |
FLTTOFIX(1.1250), /* large */ |
|
|
324 |
FLTTOFIX(1.5000), /* x-large */ |
|
|
325 |
FLTTOFIX(2.0000) /* xx-large */ |
|
|
326 |
}; |
|
|
327 |
css_hint_length parent_size; |
|
|
328 |
|
|
|
329 |
/* Grab parent size, defaulting to medium if none */ |
|
|
330 |
if (parent == NULL) { |
|
|
331 |
parent_size.value = FDIV(FMUL(factors[CSS_FONT_SIZE_MEDIUM - 1], |
|
|
332 |
INTTOFIX(nsoption_int(font_size))), |
|
|
333 |
INTTOFIX(10)); |
|
|
334 |
parent_size.unit = CSS_UNIT_PT; |
|
|
335 |
} else { |
|
|
336 |
assert(parent->status == CSS_FONT_SIZE_DIMENSION); |
|
|
337 |
assert(parent->data.length.unit != CSS_UNIT_EM); |
|
|
338 |
assert(parent->data.length.unit != CSS_UNIT_EX); |
|
|
339 |
assert(parent->data.length.unit != CSS_UNIT_PCT); |
|
|
340 |
|
|
|
341 |
parent_size = parent->data.length; |
|
|
342 |
} |
|
|
343 |
|
| 5043 |
ashmew2 |
344 |
/* assert(size->status != CSS_FONT_SIZE_INHERIT); */ |
| 3584 |
sourcerer |
345 |
|
|
|
346 |
if (size->status < CSS_FONT_SIZE_LARGER) { |
|
|
347 |
/* Keyword -- simple */ |
|
|
348 |
size->data.length.value = FDIV(FMUL(factors[size->status - 1], |
|
|
349 |
INTTOFIX(nsoption_int(font_size))), |
|
|
350 |
F_10); |
|
|
351 |
size->data.length.unit = CSS_UNIT_PT; |
|
|
352 |
} else if (size->status == CSS_FONT_SIZE_LARGER) { |
|
|
353 |
/** \todo Step within table, if appropriate */ |
|
|
354 |
size->data.length.value = |
|
|
355 |
FMUL(parent_size.value, FLTTOFIX(1.2)); |
|
|
356 |
size->data.length.unit = parent_size.unit; |
|
|
357 |
} else if (size->status == CSS_FONT_SIZE_SMALLER) { |
|
|
358 |
/** \todo Step within table, if appropriate */ |
|
|
359 |
size->data.length.value = |
|
|
360 |
FDIV(parent_size.value, FLTTOFIX(1.2)); |
|
|
361 |
size->data.length.unit = parent_size.unit; |
|
|
362 |
} else if (size->data.length.unit == CSS_UNIT_EM || |
|
|
363 |
size->data.length.unit == CSS_UNIT_EX) { |
|
|
364 |
size->data.length.value = |
|
|
365 |
FMUL(size->data.length.value, parent_size.value); |
|
|
366 |
|
|
|
367 |
if (size->data.length.unit == CSS_UNIT_EX) { |
|
|
368 |
/* 1ex = 0.6em in NetSurf */ |
|
|
369 |
size->data.length.value = FMUL(size->data.length.value, |
|
|
370 |
FLTTOFIX(0.6)); |
|
|
371 |
} |
|
|
372 |
|
|
|
373 |
size->data.length.unit = parent_size.unit; |
|
|
374 |
} else if (size->data.length.unit == CSS_UNIT_PCT) { |
|
|
375 |
size->data.length.value = FDIV(FMUL(size->data.length.value, |
|
|
376 |
parent_size.value), INTTOFIX(100)); |
|
|
377 |
size->data.length.unit = parent_size.unit; |
|
|
378 |
} |
|
|
379 |
|
|
|
380 |
size->status = CSS_FONT_SIZE_DIMENSION; |
|
|
381 |
|
|
|
382 |
return CSS_OK; |
|
|
383 |
} |
|
|
384 |
|
|
|
385 |
/** |
|
|
386 |
* Parser for colours specified in attribute values. |
|
|
387 |
* |
|
|
388 |
* \param data Data to parse (NUL-terminated) |
|
|
389 |
* \param result Pointer to location to receive resulting css_color |
|
|
390 |
* \return true on success, false on invalid input |
|
|
391 |
*/ |
|
|
392 |
bool nscss_parse_colour(const char *data, css_color *result) |
|
|
393 |
{ |
|
|
394 |
size_t len = strlen(data); |
|
|
395 |
uint8_t r, g, b; |
|
|
396 |
|
|
|
397 |
/* 2 */ |
|
|
398 |
if (len == 0) |
|
|
399 |
return false; |
|
|
400 |
|
|
|
401 |
/* 3 */ |
|
|
402 |
if (len == SLEN("transparent") && strcasecmp(data, "transparent") == 0) |
|
|
403 |
return false; |
|
|
404 |
|
|
|
405 |
/* 4 */ |
|
|
406 |
if (parse_named_colour(data, result)) |
|
|
407 |
return true; |
|
|
408 |
|
|
|
409 |
/** \todo Implement HTML5's utterly insane legacy colour parsing */ |
|
|
410 |
|
|
|
411 |
if (data[0] == '#') { |
|
|
412 |
data++; |
|
|
413 |
len--; |
|
|
414 |
} |
|
|
415 |
|
|
|
416 |
if (len == 3 && isHex(data[0]) && isHex(data[1]) && isHex(data[2])) { |
|
|
417 |
r = charToHex(data[0]); |
|
|
418 |
g = charToHex(data[1]); |
|
|
419 |
b = charToHex(data[2]); |
|
|
420 |
|
|
|
421 |
r |= (r << 4); |
|
|
422 |
g |= (g << 4); |
|
|
423 |
b |= (b << 4); |
|
|
424 |
|
|
|
425 |
*result = (0xff << 24) | (r << 16) | (g << 8) | b; |
|
|
426 |
|
|
|
427 |
return true; |
|
|
428 |
} else if (len == 6 && isHex(data[0]) && isHex(data[1]) && |
|
|
429 |
isHex(data[2]) && isHex(data[3]) && isHex(data[4]) && |
|
|
430 |
isHex(data[5])) { |
|
|
431 |
r = (charToHex(data[0]) << 4) | charToHex(data[1]); |
|
|
432 |
g = (charToHex(data[2]) << 4) | charToHex(data[3]); |
|
|
433 |
b = (charToHex(data[4]) << 4) | charToHex(data[5]); |
|
|
434 |
|
|
|
435 |
*result = (0xff << 24) | (r << 16) | (g << 8) | b; |
|
|
436 |
|
|
|
437 |
return true; |
|
|
438 |
} |
|
|
439 |
|
|
|
440 |
return false; |
|
|
441 |
} |
|
|
442 |
|
|
|
443 |
/****************************************************************************** |
|
|
444 |
* Style selection callbacks * |
|
|
445 |
******************************************************************************/ |
|
|
446 |
|
|
|
447 |
/** |
|
|
448 |
* Callback to retrieve a node's name. |
|
|
449 |
* |
|
|
450 |
* \param pw HTML document |
|
|
451 |
* \param node DOM node |
|
|
452 |
* \param qname Pointer to location to receive node name |
|
|
453 |
* \return CSS_OK on success, |
|
|
454 |
* CSS_NOMEM on memory exhaustion. |
|
|
455 |
*/ |
|
|
456 |
css_error node_name(void *pw, void *node, css_qname *qname) |
|
|
457 |
{ |
|
|
458 |
dom_node *n = node; |
|
|
459 |
dom_string *name; |
|
|
460 |
dom_exception err; |
|
|
461 |
|
|
|
462 |
err = dom_node_get_node_name(n, &name); |
|
|
463 |
if (err != DOM_NO_ERR) |
|
|
464 |
return CSS_NOMEM; |
|
|
465 |
|
|
|
466 |
qname->ns = NULL; |
|
|
467 |
|
|
|
468 |
err = dom_string_intern(name, &qname->name); |
|
|
469 |
if (err != DOM_NO_ERR) { |
|
|
470 |
dom_string_unref(name); |
|
|
471 |
return CSS_NOMEM; |
|
|
472 |
} |
|
|
473 |
|
|
|
474 |
dom_string_unref(name); |
|
|
475 |
|
|
|
476 |
return CSS_OK; |
|
|
477 |
} |
|
|
478 |
|
|
|
479 |
/** |
|
|
480 |
* Callback to retrieve a node's classes. |
|
|
481 |
* |
|
|
482 |
* \param pw HTML document |
|
|
483 |
* \param node DOM node |
|
|
484 |
* \param classes Pointer to location to receive class name array |
|
|
485 |
* \param n_classes Pointer to location to receive length of class name array |
|
|
486 |
* \return CSS_OK on success, |
|
|
487 |
* CSS_NOMEM on memory exhaustion. |
|
|
488 |
* |
|
|
489 |
* \note The returned array will be destroyed by libcss. Therefore, it must |
|
|
490 |
* be allocated using the same allocator as used by libcss during style |
|
|
491 |
* selection. |
|
|
492 |
*/ |
|
|
493 |
css_error node_classes(void *pw, void *node, |
|
|
494 |
lwc_string ***classes, uint32_t *n_classes) |
|
|
495 |
{ |
|
|
496 |
dom_node *n = node; |
|
|
497 |
dom_exception err; |
|
|
498 |
|
|
|
499 |
*classes = NULL; |
|
|
500 |
*n_classes = 0; |
|
|
501 |
|
|
|
502 |
err = dom_element_get_classes(n, classes, n_classes); |
|
|
503 |
if (err != DOM_NO_ERR) |
|
|
504 |
return CSS_NOMEM; |
|
|
505 |
|
|
|
506 |
return CSS_OK; |
|
|
507 |
} |
|
|
508 |
|
|
|
509 |
/** |
|
|
510 |
* Callback to retrieve a node's ID. |
|
|
511 |
* |
|
|
512 |
* \param pw HTML document |
|
|
513 |
* \param node DOM node |
|
|
514 |
* \param id Pointer to location to receive id value |
|
|
515 |
* \return CSS_OK on success, |
|
|
516 |
* CSS_NOMEM on memory exhaustion. |
|
|
517 |
*/ |
|
|
518 |
css_error node_id(void *pw, void *node, lwc_string **id) |
|
|
519 |
{ |
|
|
520 |
dom_node *n = node; |
|
|
521 |
dom_string *attr; |
|
|
522 |
dom_exception err; |
|
|
523 |
|
|
|
524 |
*id = NULL; |
|
|
525 |
|
|
|
526 |
/** \todo Assumes an HTML DOM */ |
|
|
527 |
err = dom_html_element_get_id(n, &attr); |
|
|
528 |
if (err != DOM_NO_ERR) |
|
|
529 |
return CSS_NOMEM; |
|
|
530 |
|
|
|
531 |
if (attr != NULL) { |
|
|
532 |
err = dom_string_intern(attr, id); |
|
|
533 |
if (err != DOM_NO_ERR) { |
|
|
534 |
dom_string_unref(attr); |
|
|
535 |
return CSS_NOMEM; |
|
|
536 |
} |
|
|
537 |
dom_string_unref(attr); |
|
|
538 |
} |
|
|
539 |
|
|
|
540 |
return CSS_OK; |
|
|
541 |
} |
|
|
542 |
|
|
|
543 |
/** |
|
|
544 |
* Callback to find a named ancestor node. |
|
|
545 |
* |
|
|
546 |
* \param pw HTML document |
|
|
547 |
* \param node DOM node |
|
|
548 |
* \param qname Node name to search for |
|
|
549 |
* \param ancestor Pointer to location to receive ancestor |
|
|
550 |
* \return CSS_OK. |
|
|
551 |
* |
|
|
552 |
* \post \a ancestor will contain the result, or NULL if there is no match |
|
|
553 |
*/ |
|
|
554 |
css_error named_ancestor_node(void *pw, void *node, |
|
|
555 |
const css_qname *qname, void **ancestor) |
|
|
556 |
{ |
|
|
557 |
dom_element_named_ancestor_node(node, qname->name, |
|
|
558 |
(struct dom_element **)ancestor); |
|
|
559 |
|
|
|
560 |
return CSS_OK; |
|
|
561 |
} |
|
|
562 |
|
|
|
563 |
/** |
|
|
564 |
* Callback to find a named parent node |
|
|
565 |
* |
|
|
566 |
* \param pw HTML document |
|
|
567 |
* \param node DOM node |
|
|
568 |
* \param qname Node name to search for |
|
|
569 |
* \param parent Pointer to location to receive parent |
|
|
570 |
* \return CSS_OK. |
|
|
571 |
* |
|
|
572 |
* \post \a parent will contain the result, or NULL if there is no match |
|
|
573 |
*/ |
|
|
574 |
css_error named_parent_node(void *pw, void *node, |
|
|
575 |
const css_qname *qname, void **parent) |
|
|
576 |
{ |
|
|
577 |
dom_element_named_parent_node(node, qname->name, |
|
|
578 |
(struct dom_element **)parent); |
|
|
579 |
|
|
|
580 |
return CSS_OK; |
|
|
581 |
} |
|
|
582 |
|
|
|
583 |
/** |
|
|
584 |
* Callback to find a named sibling node. |
|
|
585 |
* |
|
|
586 |
* \param pw HTML document |
|
|
587 |
* \param node DOM node |
|
|
588 |
* \param qname Node name to search for |
|
|
589 |
* \param sibling Pointer to location to receive sibling |
|
|
590 |
* \return CSS_OK. |
|
|
591 |
* |
|
|
592 |
* \post \a sibling will contain the result, or NULL if there is no match |
|
|
593 |
*/ |
|
|
594 |
css_error named_sibling_node(void *pw, void *node, |
|
|
595 |
const css_qname *qname, void **sibling) |
|
|
596 |
{ |
|
|
597 |
dom_node *n = node; |
|
|
598 |
dom_node *prev; |
|
|
599 |
dom_exception err; |
|
|
600 |
|
|
|
601 |
*sibling = NULL; |
|
|
602 |
|
|
|
603 |
/* Find sibling element */ |
|
|
604 |
err = dom_node_get_previous_sibling(n, &n); |
|
|
605 |
if (err != DOM_NO_ERR) |
|
|
606 |
return CSS_OK; |
|
|
607 |
|
|
|
608 |
while (n != NULL) { |
|
|
609 |
dom_node_type type; |
|
|
610 |
|
|
|
611 |
err = dom_node_get_node_type(n, &type); |
|
|
612 |
if (err != DOM_NO_ERR) { |
|
|
613 |
dom_node_unref(n); |
|
|
614 |
return CSS_OK; |
|
|
615 |
} |
|
|
616 |
|
|
|
617 |
if (type == DOM_ELEMENT_NODE) |
|
|
618 |
break; |
|
|
619 |
|
|
|
620 |
err = dom_node_get_previous_sibling(n, &prev); |
|
|
621 |
if (err != DOM_NO_ERR) { |
|
|
622 |
dom_node_unref(n); |
|
|
623 |
return CSS_OK; |
|
|
624 |
} |
|
|
625 |
|
|
|
626 |
dom_node_unref(n); |
|
|
627 |
n = prev; |
|
|
628 |
} |
|
|
629 |
|
|
|
630 |
if (n != NULL) { |
|
|
631 |
dom_string *name; |
|
|
632 |
|
|
|
633 |
err = dom_node_get_node_name(n, &name); |
|
|
634 |
if (err != DOM_NO_ERR) { |
|
|
635 |
dom_node_unref(n); |
|
|
636 |
return CSS_OK; |
|
|
637 |
} |
|
|
638 |
|
|
|
639 |
dom_node_unref(n); |
|
|
640 |
|
|
|
641 |
if (dom_string_caseless_lwc_isequal(name, qname->name)) { |
|
|
642 |
*sibling = n; |
|
|
643 |
} |
|
|
644 |
|
|
|
645 |
dom_string_unref(name); |
|
|
646 |
} |
|
|
647 |
|
|
|
648 |
return CSS_OK; |
|
|
649 |
} |
|
|
650 |
|
|
|
651 |
/** |
|
|
652 |
* Callback to find a named generic sibling node. |
|
|
653 |
* |
|
|
654 |
* \param pw HTML document |
|
|
655 |
* \param node DOM node |
|
|
656 |
* \param qname Node name to search for |
|
|
657 |
* \param sibling Pointer to location to receive ancestor |
|
|
658 |
* \return CSS_OK. |
|
|
659 |
* |
|
|
660 |
* \post \a sibling will contain the result, or NULL if there is no match |
|
|
661 |
*/ |
|
|
662 |
css_error named_generic_sibling_node(void *pw, void *node, |
|
|
663 |
const css_qname *qname, void **sibling) |
|
|
664 |
{ |
|
|
665 |
dom_node *n = node; |
|
|
666 |
dom_node *prev; |
|
|
667 |
dom_exception err; |
|
|
668 |
|
|
|
669 |
*sibling = NULL; |
|
|
670 |
|
|
|
671 |
err = dom_node_get_previous_sibling(n, &n); |
|
|
672 |
if (err != DOM_NO_ERR) |
|
|
673 |
return CSS_OK; |
|
|
674 |
|
|
|
675 |
while (n != NULL) { |
|
|
676 |
dom_node_type type; |
|
|
677 |
dom_string *name; |
|
|
678 |
|
|
|
679 |
err = dom_node_get_node_type(n, &type); |
|
|
680 |
if (err != DOM_NO_ERR) { |
|
|
681 |
dom_node_unref(n); |
|
|
682 |
return CSS_OK; |
|
|
683 |
} |
|
|
684 |
|
|
|
685 |
if (type == DOM_ELEMENT_NODE) { |
|
|
686 |
err = dom_node_get_node_name(n, &name); |
|
|
687 |
if (err != DOM_NO_ERR) { |
|
|
688 |
dom_node_unref(n); |
|
|
689 |
return CSS_OK; |
|
|
690 |
} |
|
|
691 |
|
|
|
692 |
if (dom_string_caseless_lwc_isequal(name, |
|
|
693 |
qname->name)) { |
|
|
694 |
dom_string_unref(name); |
|
|
695 |
dom_node_unref(n); |
|
|
696 |
*sibling = n; |
|
|
697 |
break; |
|
|
698 |
} |
|
|
699 |
dom_string_unref(name); |
|
|
700 |
} |
|
|
701 |
|
|
|
702 |
err = dom_node_get_previous_sibling(n, &prev); |
|
|
703 |
if (err != DOM_NO_ERR) { |
|
|
704 |
dom_node_unref(n); |
|
|
705 |
return CSS_OK; |
|
|
706 |
} |
|
|
707 |
|
|
|
708 |
dom_node_unref(n); |
|
|
709 |
n = prev; |
|
|
710 |
} |
|
|
711 |
|
|
|
712 |
return CSS_OK; |
|
|
713 |
} |
|
|
714 |
|
|
|
715 |
/** |
|
|
716 |
* Callback to retrieve the parent of a node. |
|
|
717 |
* |
|
|
718 |
* \param pw HTML document |
|
|
719 |
* \param node DOM node |
|
|
720 |
* \param parent Pointer to location to receive parent |
|
|
721 |
* \return CSS_OK. |
|
|
722 |
* |
|
|
723 |
* \post \a parent will contain the result, or NULL if there is no match |
|
|
724 |
*/ |
|
|
725 |
css_error parent_node(void *pw, void *node, void **parent) |
|
|
726 |
{ |
|
|
727 |
dom_element_parent_node(node, (struct dom_element **)parent); |
|
|
728 |
|
|
|
729 |
return CSS_OK; |
|
|
730 |
} |
|
|
731 |
|
|
|
732 |
/** |
|
|
733 |
* Callback to retrieve the preceding sibling of a node. |
|
|
734 |
* |
|
|
735 |
* \param pw HTML document |
|
|
736 |
* \param node DOM node |
|
|
737 |
* \param sibling Pointer to location to receive sibling |
|
|
738 |
* \return CSS_OK. |
|
|
739 |
* |
|
|
740 |
* \post \a sibling will contain the result, or NULL if there is no match |
|
|
741 |
*/ |
|
|
742 |
css_error sibling_node(void *pw, void *node, void **sibling) |
|
|
743 |
{ |
|
|
744 |
dom_node *n = node; |
|
|
745 |
dom_node *prev; |
|
|
746 |
dom_exception err; |
|
|
747 |
|
|
|
748 |
*sibling = NULL; |
|
|
749 |
|
|
|
750 |
/* Find sibling element */ |
|
|
751 |
err = dom_node_get_previous_sibling(n, &n); |
|
|
752 |
if (err != DOM_NO_ERR) |
|
|
753 |
return CSS_OK; |
|
|
754 |
|
|
|
755 |
while (n != NULL) { |
|
|
756 |
dom_node_type type; |
|
|
757 |
|
|
|
758 |
err = dom_node_get_node_type(n, &type); |
|
|
759 |
if (err != DOM_NO_ERR) { |
|
|
760 |
dom_node_unref(n); |
|
|
761 |
return CSS_OK; |
|
|
762 |
} |
|
|
763 |
|
|
|
764 |
if (type == DOM_ELEMENT_NODE) |
|
|
765 |
break; |
|
|
766 |
|
|
|
767 |
err = dom_node_get_previous_sibling(n, &prev); |
|
|
768 |
if (err != DOM_NO_ERR) { |
|
|
769 |
dom_node_unref(n); |
|
|
770 |
return CSS_OK; |
|
|
771 |
} |
|
|
772 |
|
|
|
773 |
dom_node_unref(n); |
|
|
774 |
n = prev; |
|
|
775 |
} |
|
|
776 |
|
|
|
777 |
if (n != NULL) { |
|
|
778 |
/** \todo Sort out reference counting */ |
|
|
779 |
dom_node_unref(n); |
|
|
780 |
|
|
|
781 |
*sibling = n; |
|
|
782 |
} |
|
|
783 |
|
|
|
784 |
return CSS_OK; |
|
|
785 |
} |
|
|
786 |
|
|
|
787 |
/** |
|
|
788 |
* Callback to determine if a node has the given name. |
|
|
789 |
* |
|
|
790 |
* \param pw HTML document |
|
|
791 |
* \param node DOM node |
|
|
792 |
* \param qname Name to match |
|
|
793 |
* \param match Pointer to location to receive result |
|
|
794 |
* \return CSS_OK. |
|
|
795 |
* |
|
|
796 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
797 |
*/ |
|
|
798 |
css_error node_has_name(void *pw, void *node, |
|
|
799 |
const css_qname *qname, bool *match) |
|
|
800 |
{ |
|
|
801 |
nscss_select_ctx *ctx = pw; |
|
|
802 |
dom_node *n = node; |
|
|
803 |
|
|
|
804 |
if (lwc_string_isequal(qname->name, ctx->universal, match) == lwc_error_ok && *match == false) { |
|
|
805 |
dom_string *name; |
|
|
806 |
dom_exception err; |
|
|
807 |
|
|
|
808 |
err = dom_node_get_node_name(n, &name); |
|
|
809 |
if (err != DOM_NO_ERR) |
|
|
810 |
return CSS_OK; |
|
|
811 |
|
|
|
812 |
/* Element names are case insensitive in HTML */ |
|
|
813 |
*match = dom_string_caseless_lwc_isequal(name, qname->name); |
|
|
814 |
|
|
|
815 |
dom_string_unref(name); |
|
|
816 |
} |
|
|
817 |
|
|
|
818 |
return CSS_OK; |
|
|
819 |
} |
|
|
820 |
|
|
|
821 |
/** |
|
|
822 |
* Callback to determine if a node has the given class. |
|
|
823 |
* |
|
|
824 |
* \param pw HTML document |
|
|
825 |
* \param node DOM node |
|
|
826 |
* \param name Name to match |
|
|
827 |
* \param match Pointer to location to receive result |
|
|
828 |
* \return CSS_OK. |
|
|
829 |
* |
|
|
830 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
831 |
*/ |
|
|
832 |
css_error node_has_class(void *pw, void *node, |
|
|
833 |
lwc_string *name, bool *match) |
|
|
834 |
{ |
|
|
835 |
dom_node *n = node; |
|
|
836 |
dom_exception err; |
|
|
837 |
|
|
|
838 |
/** \todo: Ensure that libdom performs case-insensitive |
|
|
839 |
* matching in quirks mode */ |
|
|
840 |
err = dom_element_has_class(n, name, match); |
|
|
841 |
|
|
|
842 |
assert(err == DOM_NO_ERR); |
|
|
843 |
|
|
|
844 |
return CSS_OK; |
|
|
845 |
} |
|
|
846 |
|
|
|
847 |
/** |
|
|
848 |
* Callback to determine if a node has the given id. |
|
|
849 |
* |
|
|
850 |
* \param pw HTML document |
|
|
851 |
* \param node DOM node |
|
|
852 |
* \param name Name to match |
|
|
853 |
* \param match Pointer to location to receive result |
|
|
854 |
* \return CSS_OK. |
|
|
855 |
* |
|
|
856 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
857 |
*/ |
|
|
858 |
css_error node_has_id(void *pw, void *node, |
|
|
859 |
lwc_string *name, bool *match) |
|
|
860 |
{ |
|
|
861 |
dom_node *n = node; |
|
|
862 |
dom_string *attr; |
|
|
863 |
dom_exception err; |
|
|
864 |
|
|
|
865 |
*match = false; |
|
|
866 |
|
|
|
867 |
/** \todo Assumes an HTML DOM */ |
|
|
868 |
err = dom_html_element_get_id(n, &attr); |
|
|
869 |
if (err != DOM_NO_ERR) |
|
|
870 |
return CSS_OK; |
|
|
871 |
|
|
|
872 |
if (attr != NULL) { |
|
|
873 |
*match = dom_string_lwc_isequal(attr, name); |
|
|
874 |
|
|
|
875 |
dom_string_unref(attr); |
|
|
876 |
} |
|
|
877 |
|
|
|
878 |
return CSS_OK; |
|
|
879 |
} |
|
|
880 |
|
|
|
881 |
/** |
|
|
882 |
* Callback to determine if a node has an attribute with the given name. |
|
|
883 |
* |
|
|
884 |
* \param pw HTML document |
|
|
885 |
* \param node DOM node |
|
|
886 |
* \param qname Name to match |
|
|
887 |
* \param match Pointer to location to receive result |
|
|
888 |
* \return CSS_OK on success, |
|
|
889 |
* CSS_NOMEM on memory exhaustion. |
|
|
890 |
* |
|
|
891 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
892 |
*/ |
|
|
893 |
css_error node_has_attribute(void *pw, void *node, |
|
|
894 |
const css_qname *qname, bool *match) |
|
|
895 |
{ |
|
|
896 |
dom_node *n = node; |
|
|
897 |
dom_string *name; |
|
|
898 |
dom_exception err; |
|
|
899 |
|
|
|
900 |
err = dom_string_create_interned( |
|
|
901 |
(const uint8_t *) lwc_string_data(qname->name), |
|
|
902 |
lwc_string_length(qname->name), &name); |
|
|
903 |
if (err != DOM_NO_ERR) |
|
|
904 |
return CSS_NOMEM; |
|
|
905 |
|
|
|
906 |
err = dom_element_has_attribute(n, name, match); |
|
|
907 |
if (err != DOM_NO_ERR) { |
|
|
908 |
dom_string_unref(name); |
|
|
909 |
return CSS_OK; |
|
|
910 |
} |
|
|
911 |
|
|
|
912 |
dom_string_unref(name); |
|
|
913 |
|
|
|
914 |
return CSS_OK; |
|
|
915 |
} |
|
|
916 |
|
|
|
917 |
/** |
|
|
918 |
* Callback to determine if a node has an attribute with given name and value. |
|
|
919 |
* |
|
|
920 |
* \param pw HTML document |
|
|
921 |
* \param node DOM node |
|
|
922 |
* \param qname Name to match |
|
|
923 |
* \param value Value to match |
|
|
924 |
* \param match Pointer to location to receive result |
|
|
925 |
* \return CSS_OK on success, |
|
|
926 |
* CSS_NOMEM on memory exhaustion. |
|
|
927 |
* |
|
|
928 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
929 |
*/ |
|
|
930 |
css_error node_has_attribute_equal(void *pw, void *node, |
|
|
931 |
const css_qname *qname, lwc_string *value, |
|
|
932 |
bool *match) |
|
|
933 |
{ |
|
|
934 |
dom_node *n = node; |
|
|
935 |
dom_string *name; |
|
|
936 |
dom_string *atr_val; |
|
|
937 |
dom_exception err; |
|
|
938 |
|
|
|
939 |
size_t vlen = lwc_string_length(value); |
|
|
940 |
|
|
|
941 |
if (vlen == 0) { |
|
|
942 |
*match = false; |
|
|
943 |
return CSS_OK; |
|
|
944 |
} |
|
|
945 |
|
|
|
946 |
err = dom_string_create_interned( |
|
|
947 |
(const uint8_t *) lwc_string_data(qname->name), |
|
|
948 |
lwc_string_length(qname->name), &name); |
|
|
949 |
if (err != DOM_NO_ERR) |
|
|
950 |
return CSS_NOMEM; |
|
|
951 |
|
|
|
952 |
err = dom_element_get_attribute(n, name, &atr_val); |
|
|
953 |
if ((err != DOM_NO_ERR) || (atr_val == NULL)) { |
|
|
954 |
dom_string_unref(name); |
|
|
955 |
*match = false; |
|
|
956 |
return CSS_OK; |
|
|
957 |
} |
|
|
958 |
|
|
|
959 |
dom_string_unref(name); |
|
|
960 |
|
|
|
961 |
*match = dom_string_caseless_lwc_isequal(atr_val, value); |
|
|
962 |
|
|
|
963 |
dom_string_unref(atr_val); |
|
|
964 |
|
|
|
965 |
return CSS_OK; |
|
|
966 |
} |
|
|
967 |
|
|
|
968 |
/** |
|
|
969 |
* Callback to determine if a node has an attribute with the given name whose |
|
|
970 |
* value dashmatches that given. |
|
|
971 |
* |
|
|
972 |
* \param pw HTML document |
|
|
973 |
* \param node DOM node |
|
|
974 |
* \param qname Name to match |
|
|
975 |
* \param value Value to match |
|
|
976 |
* \param match Pointer to location to receive result |
|
|
977 |
* \return CSS_OK on success, |
|
|
978 |
* CSS_NOMEM on memory exhaustion. |
|
|
979 |
* |
|
|
980 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
981 |
*/ |
|
|
982 |
css_error node_has_attribute_dashmatch(void *pw, void *node, |
|
|
983 |
const css_qname *qname, lwc_string *value, |
|
|
984 |
bool *match) |
|
|
985 |
{ |
|
|
986 |
dom_node *n = node; |
|
|
987 |
dom_string *name; |
|
|
988 |
dom_string *atr_val; |
|
|
989 |
dom_exception err; |
|
|
990 |
|
|
|
991 |
size_t vlen = lwc_string_length(value); |
|
|
992 |
|
|
|
993 |
if (vlen == 0) { |
|
|
994 |
*match = false; |
|
|
995 |
return CSS_OK; |
|
|
996 |
} |
|
|
997 |
|
|
|
998 |
err = dom_string_create_interned( |
|
|
999 |
(const uint8_t *) lwc_string_data(qname->name), |
|
|
1000 |
lwc_string_length(qname->name), &name); |
|
|
1001 |
if (err != DOM_NO_ERR) |
|
|
1002 |
return CSS_NOMEM; |
|
|
1003 |
|
|
|
1004 |
err = dom_element_get_attribute(n, name, &atr_val); |
|
|
1005 |
if ((err != DOM_NO_ERR) || (atr_val == NULL)) { |
|
|
1006 |
dom_string_unref(name); |
|
|
1007 |
*match = false; |
|
|
1008 |
return CSS_OK; |
|
|
1009 |
} |
|
|
1010 |
|
|
|
1011 |
dom_string_unref(name); |
|
|
1012 |
|
|
|
1013 |
/* check for exact match */ |
|
|
1014 |
*match = dom_string_caseless_lwc_isequal(atr_val, value); |
|
|
1015 |
|
|
|
1016 |
/* check for dashmatch */ |
|
|
1017 |
if (*match == false) { |
|
|
1018 |
const char *vdata = lwc_string_data(value); |
|
|
1019 |
const char *data = (const char *) dom_string_data(atr_val); |
|
|
1020 |
size_t len = dom_string_byte_length(atr_val); |
|
|
1021 |
|
|
|
1022 |
if (len > vlen && data[vlen] == '-' && |
|
|
1023 |
strncasecmp(data, vdata, vlen) == 0) { |
|
|
1024 |
*match = true; |
|
|
1025 |
} |
|
|
1026 |
} |
|
|
1027 |
|
|
|
1028 |
dom_string_unref(atr_val); |
|
|
1029 |
|
|
|
1030 |
return CSS_OK; |
|
|
1031 |
} |
|
|
1032 |
|
|
|
1033 |
/** |
|
|
1034 |
* Callback to determine if a node has an attribute with the given name whose |
|
|
1035 |
* value includes that given. |
|
|
1036 |
* |
|
|
1037 |
* \param pw HTML document |
|
|
1038 |
* \param node DOM node |
|
|
1039 |
* \param qname Name to match |
|
|
1040 |
* \param value Value to match |
|
|
1041 |
* \param match Pointer to location to receive result |
|
|
1042 |
* \return CSS_OK on success, |
|
|
1043 |
* CSS_NOMEM on memory exhaustion. |
|
|
1044 |
* |
|
|
1045 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
1046 |
*/ |
|
|
1047 |
css_error node_has_attribute_includes(void *pw, void *node, |
|
|
1048 |
const css_qname *qname, lwc_string *value, |
|
|
1049 |
bool *match) |
|
|
1050 |
{ |
|
|
1051 |
dom_node *n = node; |
|
|
1052 |
dom_string *name; |
|
|
1053 |
dom_string *atr_val; |
|
|
1054 |
dom_exception err; |
|
|
1055 |
size_t vlen = lwc_string_length(value); |
|
|
1056 |
const char *p; |
|
|
1057 |
const char *start; |
|
|
1058 |
const char *end; |
|
|
1059 |
|
|
|
1060 |
*match = false; |
|
|
1061 |
|
|
|
1062 |
if (vlen == 0) { |
|
|
1063 |
return CSS_OK; |
|
|
1064 |
} |
|
|
1065 |
|
|
|
1066 |
err = dom_string_create_interned( |
|
|
1067 |
(const uint8_t *) lwc_string_data(qname->name), |
|
|
1068 |
lwc_string_length(qname->name), &name); |
|
|
1069 |
if (err != DOM_NO_ERR) |
|
|
1070 |
return CSS_NOMEM; |
|
|
1071 |
|
|
|
1072 |
err = dom_element_get_attribute(n, name, &atr_val); |
|
|
1073 |
if ((err != DOM_NO_ERR) || (atr_val == NULL)) { |
|
|
1074 |
dom_string_unref(name); |
|
|
1075 |
*match = false; |
|
|
1076 |
return CSS_OK; |
|
|
1077 |
} |
|
|
1078 |
|
|
|
1079 |
dom_string_unref(name); |
|
|
1080 |
|
|
|
1081 |
/* check for match */ |
|
|
1082 |
start = (const char *) dom_string_data(atr_val); |
|
|
1083 |
end = start + dom_string_byte_length(atr_val); |
|
|
1084 |
|
|
|
1085 |
for (p = start; p <= end; p++) { |
|
|
1086 |
if (*p == ' ' || *p == '\0') { |
|
|
1087 |
if ((size_t) (p - start) == vlen && |
|
|
1088 |
strncasecmp(start, |
|
|
1089 |
lwc_string_data(value), |
|
|
1090 |
vlen) == 0) { |
|
|
1091 |
*match = true; |
|
|
1092 |
break; |
|
|
1093 |
} |
|
|
1094 |
|
|
|
1095 |
start = p + 1; |
|
|
1096 |
} |
|
|
1097 |
} |
|
|
1098 |
|
|
|
1099 |
dom_string_unref(atr_val); |
|
|
1100 |
|
|
|
1101 |
return CSS_OK; |
|
|
1102 |
} |
|
|
1103 |
|
|
|
1104 |
/** |
|
|
1105 |
* Callback to determine if a node has an attribute with the given name whose |
|
|
1106 |
* value has the prefix given. |
|
|
1107 |
* |
|
|
1108 |
* \param pw HTML document |
|
|
1109 |
* \param node DOM node |
|
|
1110 |
* \param qname Name to match |
|
|
1111 |
* \param value Value to match |
|
|
1112 |
* \param match Pointer to location to receive result |
|
|
1113 |
* \return CSS_OK on success, |
|
|
1114 |
* CSS_NOMEM on memory exhaustion. |
|
|
1115 |
* |
|
|
1116 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
1117 |
*/ |
|
|
1118 |
css_error node_has_attribute_prefix(void *pw, void *node, |
|
|
1119 |
const css_qname *qname, lwc_string *value, |
|
|
1120 |
bool *match) |
|
|
1121 |
{ |
|
|
1122 |
dom_node *n = node; |
|
|
1123 |
dom_string *name; |
|
|
1124 |
dom_string *atr_val; |
|
|
1125 |
dom_exception err; |
|
|
1126 |
|
|
|
1127 |
size_t vlen = lwc_string_length(value); |
|
|
1128 |
|
|
|
1129 |
if (vlen == 0) { |
|
|
1130 |
*match = false; |
|
|
1131 |
return CSS_OK; |
|
|
1132 |
} |
|
|
1133 |
|
|
|
1134 |
err = dom_string_create_interned( |
|
|
1135 |
(const uint8_t *) lwc_string_data(qname->name), |
|
|
1136 |
lwc_string_length(qname->name), &name); |
|
|
1137 |
if (err != DOM_NO_ERR) |
|
|
1138 |
return CSS_NOMEM; |
|
|
1139 |
|
|
|
1140 |
err = dom_element_get_attribute(n, name, &atr_val); |
|
|
1141 |
if ((err != DOM_NO_ERR) || (atr_val == NULL)) { |
|
|
1142 |
dom_string_unref(name); |
|
|
1143 |
*match = false; |
|
|
1144 |
return CSS_OK; |
|
|
1145 |
} |
|
|
1146 |
|
|
|
1147 |
dom_string_unref(name); |
|
|
1148 |
|
|
|
1149 |
/* check for exact match */ |
|
|
1150 |
*match = dom_string_caseless_lwc_isequal(atr_val, value); |
|
|
1151 |
|
|
|
1152 |
/* check for prefix match */ |
|
|
1153 |
if (*match == false) { |
|
|
1154 |
const char *data = (const char *) dom_string_data(atr_val); |
|
|
1155 |
size_t len = dom_string_byte_length(atr_val); |
|
|
1156 |
|
|
|
1157 |
if ((len >= vlen) && |
|
|
1158 |
(strncasecmp(data, lwc_string_data(value), vlen) == 0)) { |
|
|
1159 |
*match = true; |
|
|
1160 |
} |
|
|
1161 |
} |
|
|
1162 |
|
|
|
1163 |
dom_string_unref(atr_val); |
|
|
1164 |
|
|
|
1165 |
return CSS_OK; |
|
|
1166 |
} |
|
|
1167 |
|
|
|
1168 |
/** |
|
|
1169 |
* Callback to determine if a node has an attribute with the given name whose |
|
|
1170 |
* value has the suffix given. |
|
|
1171 |
* |
|
|
1172 |
* \param pw HTML document |
|
|
1173 |
* \param node DOM node |
|
|
1174 |
* \param qname Name to match |
|
|
1175 |
* \param value Value to match |
|
|
1176 |
* \param match Pointer to location to receive result |
|
|
1177 |
* \return CSS_OK on success, |
|
|
1178 |
* CSS_NOMEM on memory exhaustion. |
|
|
1179 |
* |
|
|
1180 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
1181 |
*/ |
|
|
1182 |
css_error node_has_attribute_suffix(void *pw, void *node, |
|
|
1183 |
const css_qname *qname, lwc_string *value, |
|
|
1184 |
bool *match) |
|
|
1185 |
{ |
|
|
1186 |
dom_node *n = node; |
|
|
1187 |
dom_string *name; |
|
|
1188 |
dom_string *atr_val; |
|
|
1189 |
dom_exception err; |
|
|
1190 |
|
|
|
1191 |
size_t vlen = lwc_string_length(value); |
|
|
1192 |
|
|
|
1193 |
if (vlen == 0) { |
|
|
1194 |
*match = false; |
|
|
1195 |
return CSS_OK; |
|
|
1196 |
} |
|
|
1197 |
|
|
|
1198 |
err = dom_string_create_interned( |
|
|
1199 |
(const uint8_t *) lwc_string_data(qname->name), |
|
|
1200 |
lwc_string_length(qname->name), &name); |
|
|
1201 |
if (err != DOM_NO_ERR) |
|
|
1202 |
return CSS_NOMEM; |
|
|
1203 |
|
|
|
1204 |
err = dom_element_get_attribute(n, name, &atr_val); |
|
|
1205 |
if ((err != DOM_NO_ERR) || (atr_val == NULL)) { |
|
|
1206 |
dom_string_unref(name); |
|
|
1207 |
*match = false; |
|
|
1208 |
return CSS_OK; |
|
|
1209 |
} |
|
|
1210 |
|
|
|
1211 |
dom_string_unref(name); |
|
|
1212 |
|
|
|
1213 |
/* check for exact match */ |
|
|
1214 |
*match = dom_string_caseless_lwc_isequal(atr_val, value); |
|
|
1215 |
|
|
|
1216 |
/* check for prefix match */ |
|
|
1217 |
if (*match == false) { |
|
|
1218 |
const char *data = (const char *) dom_string_data(atr_val); |
|
|
1219 |
size_t len = dom_string_byte_length(atr_val); |
|
|
1220 |
|
|
|
1221 |
const char *start = (char *) data + len - vlen; |
|
|
1222 |
|
|
|
1223 |
if ((len >= vlen) && |
|
|
1224 |
(strncasecmp(start, lwc_string_data(value), vlen) == 0)) { |
|
|
1225 |
*match = true; |
|
|
1226 |
} |
|
|
1227 |
|
|
|
1228 |
|
|
|
1229 |
} |
|
|
1230 |
|
|
|
1231 |
dom_string_unref(atr_val); |
|
|
1232 |
|
|
|
1233 |
return CSS_OK; |
|
|
1234 |
} |
|
|
1235 |
|
|
|
1236 |
/** |
|
|
1237 |
* Callback to determine if a node has an attribute with the given name whose |
|
|
1238 |
* value contains the substring given. |
|
|
1239 |
* |
|
|
1240 |
* \param pw HTML document |
|
|
1241 |
* \param node DOM node |
|
|
1242 |
* \param qname Name to match |
|
|
1243 |
* \param value Value to match |
|
|
1244 |
* \param match Pointer to location to receive result |
|
|
1245 |
* \return CSS_OK on success, |
|
|
1246 |
* CSS_NOMEM on memory exhaustion. |
|
|
1247 |
* |
|
|
1248 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
1249 |
*/ |
|
|
1250 |
css_error node_has_attribute_substring(void *pw, void *node, |
|
|
1251 |
const css_qname *qname, lwc_string *value, |
|
|
1252 |
bool *match) |
|
|
1253 |
{ |
|
|
1254 |
dom_node *n = node; |
|
|
1255 |
dom_string *name; |
|
|
1256 |
dom_string *atr_val; |
|
|
1257 |
dom_exception err; |
|
|
1258 |
|
|
|
1259 |
size_t vlen = lwc_string_length(value); |
|
|
1260 |
|
|
|
1261 |
if (vlen == 0) { |
|
|
1262 |
*match = false; |
|
|
1263 |
return CSS_OK; |
|
|
1264 |
} |
|
|
1265 |
|
|
|
1266 |
err = dom_string_create_interned( |
|
|
1267 |
(const uint8_t *) lwc_string_data(qname->name), |
|
|
1268 |
lwc_string_length(qname->name), &name); |
|
|
1269 |
if (err != DOM_NO_ERR) |
|
|
1270 |
return CSS_NOMEM; |
|
|
1271 |
|
|
|
1272 |
err = dom_element_get_attribute(n, name, &atr_val); |
|
|
1273 |
if ((err != DOM_NO_ERR) || (atr_val == NULL)) { |
|
|
1274 |
dom_string_unref(name); |
|
|
1275 |
*match = false; |
|
|
1276 |
return CSS_OK; |
|
|
1277 |
} |
|
|
1278 |
|
|
|
1279 |
dom_string_unref(name); |
|
|
1280 |
|
|
|
1281 |
/* check for exact match */ |
|
|
1282 |
*match = dom_string_caseless_lwc_isequal(atr_val, value); |
|
|
1283 |
|
|
|
1284 |
/* check for prefix match */ |
|
|
1285 |
if (*match == false) { |
|
|
1286 |
const char *vdata = lwc_string_data(value); |
|
|
1287 |
const char *start = (const char *) dom_string_data(atr_val); |
|
|
1288 |
size_t len = dom_string_byte_length(atr_val); |
|
|
1289 |
const char *last_start = start + len - vlen; |
|
|
1290 |
|
|
|
1291 |
if (len >= vlen) { |
|
|
1292 |
while (start <= last_start) { |
|
|
1293 |
if (strncasecmp(start, vdata, |
|
|
1294 |
vlen) == 0) { |
|
|
1295 |
*match = true; |
|
|
1296 |
break; |
|
|
1297 |
} |
|
|
1298 |
|
|
|
1299 |
start++; |
|
|
1300 |
} |
|
|
1301 |
} |
|
|
1302 |
} |
|
|
1303 |
|
|
|
1304 |
dom_string_unref(atr_val); |
|
|
1305 |
|
|
|
1306 |
return CSS_OK; |
|
|
1307 |
} |
|
|
1308 |
|
|
|
1309 |
/** |
|
|
1310 |
* Callback to determine if a node is the root node of the document. |
|
|
1311 |
* |
|
|
1312 |
* \param pw HTML document |
|
|
1313 |
* \param node DOM node |
|
|
1314 |
* \param match Pointer to location to receive result |
|
|
1315 |
* \return CSS_OK. |
|
|
1316 |
* |
|
|
1317 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
1318 |
*/ |
|
|
1319 |
css_error node_is_root(void *pw, void *node, bool *match) |
|
|
1320 |
{ |
|
|
1321 |
dom_node *n = node; |
|
|
1322 |
dom_node *parent; |
|
|
1323 |
dom_node_type type; |
|
|
1324 |
dom_exception err; |
|
|
1325 |
|
|
|
1326 |
err = dom_node_get_parent_node(n, &parent); |
|
|
1327 |
if (err != DOM_NO_ERR) { |
|
|
1328 |
return CSS_NOMEM; |
|
|
1329 |
} |
|
|
1330 |
|
|
|
1331 |
if (parent != NULL) { |
|
|
1332 |
err = dom_node_get_node_type(parent, &type); |
|
|
1333 |
|
|
|
1334 |
dom_node_unref(parent); |
|
|
1335 |
|
|
|
1336 |
if (err != DOM_NO_ERR) |
|
|
1337 |
return CSS_NOMEM; |
|
|
1338 |
|
|
|
1339 |
if (type != DOM_DOCUMENT_NODE) { |
|
|
1340 |
*match = false; |
|
|
1341 |
return CSS_OK; |
|
|
1342 |
} |
|
|
1343 |
} |
|
|
1344 |
|
|
|
1345 |
*match = true; |
|
|
1346 |
|
|
|
1347 |
return CSS_OK; |
|
|
1348 |
} |
|
|
1349 |
|
|
|
1350 |
static int |
|
|
1351 |
node_count_siblings_check(dom_node *node, |
|
|
1352 |
bool check_name, |
|
|
1353 |
dom_string *name) |
|
|
1354 |
{ |
|
|
1355 |
dom_node_type type; |
|
|
1356 |
int ret = 0; |
|
|
1357 |
dom_exception exc; |
|
|
1358 |
|
|
|
1359 |
if (node == NULL) |
|
|
1360 |
return 0; |
|
|
1361 |
|
|
|
1362 |
exc = dom_node_get_node_type(node, &type); |
|
|
1363 |
if ((exc != DOM_NO_ERR) || (type != DOM_ELEMENT_NODE)) { |
|
|
1364 |
return 0; |
|
|
1365 |
} |
|
|
1366 |
|
|
|
1367 |
if (check_name) { |
|
|
1368 |
dom_string *node_name = NULL; |
|
|
1369 |
exc = dom_node_get_node_name(node, &node_name); |
|
|
1370 |
|
|
|
1371 |
if ((exc == DOM_NO_ERR) && (node_name != NULL)) { |
|
|
1372 |
|
|
|
1373 |
if (dom_string_caseless_isequal(name, |
|
|
1374 |
node_name)) { |
|
|
1375 |
ret = 1; |
|
|
1376 |
} |
|
|
1377 |
dom_string_unref(node_name); |
|
|
1378 |
} |
|
|
1379 |
} else { |
|
|
1380 |
ret = 1; |
|
|
1381 |
} |
|
|
1382 |
|
|
|
1383 |
return ret; |
|
|
1384 |
} |
|
|
1385 |
|
|
|
1386 |
/** |
|
|
1387 |
* Callback to count a node's siblings. |
|
|
1388 |
* |
|
|
1389 |
* \param pw HTML document |
|
|
1390 |
* \param node DOM node |
|
|
1391 |
* \param same_name Only count siblings with the same name, or all |
|
|
1392 |
* \param after Count anteceding instead of preceding siblings |
|
|
1393 |
* \param count Pointer to location to receive result |
|
|
1394 |
* \return CSS_OK. |
|
|
1395 |
* |
|
|
1396 |
* \post \a count will contain the number of siblings |
|
|
1397 |
*/ |
|
|
1398 |
css_error node_count_siblings(void *pw, void *n, bool same_name, |
|
|
1399 |
bool after, int32_t *count) |
|
|
1400 |
{ |
|
|
1401 |
int32_t cnt = 0; |
|
|
1402 |
dom_exception exc; |
|
|
1403 |
dom_string *node_name = NULL; |
|
|
1404 |
|
|
|
1405 |
if (same_name) { |
|
|
1406 |
dom_node *node = n; |
|
|
1407 |
exc = dom_node_get_node_name(node, &node_name); |
|
|
1408 |
if ((exc != DOM_NO_ERR) || (node_name == NULL)) { |
|
|
1409 |
return CSS_NOMEM; |
|
|
1410 |
} |
|
|
1411 |
} |
|
|
1412 |
|
|
|
1413 |
if (after) { |
|
|
1414 |
dom_node *node = dom_node_ref(n); |
|
|
1415 |
dom_node *next; |
|
|
1416 |
|
|
|
1417 |
do { |
|
|
1418 |
exc = dom_node_get_next_sibling(node, &next); |
|
|
1419 |
if ((exc != DOM_NO_ERR)) |
|
|
1420 |
break; |
|
|
1421 |
|
|
|
1422 |
dom_node_unref(node); |
|
|
1423 |
node = next; |
|
|
1424 |
|
|
|
1425 |
cnt += node_count_siblings_check(node, same_name, node_name); |
|
|
1426 |
} while (node != NULL); |
|
|
1427 |
} else { |
|
|
1428 |
dom_node *node = dom_node_ref(n); |
|
|
1429 |
dom_node *next; |
|
|
1430 |
|
|
|
1431 |
do { |
|
|
1432 |
exc = dom_node_get_previous_sibling(node, &next); |
|
|
1433 |
if ((exc != DOM_NO_ERR)) |
|
|
1434 |
break; |
|
|
1435 |
|
|
|
1436 |
dom_node_unref(node); |
|
|
1437 |
node = next; |
|
|
1438 |
|
|
|
1439 |
cnt += node_count_siblings_check(node, same_name, node_name); |
|
|
1440 |
|
|
|
1441 |
} while (node != NULL); |
|
|
1442 |
} |
|
|
1443 |
|
|
|
1444 |
if (node_name != NULL) { |
|
|
1445 |
dom_string_unref(node_name); |
|
|
1446 |
} |
|
|
1447 |
|
|
|
1448 |
*count = cnt; |
|
|
1449 |
return CSS_OK; |
|
|
1450 |
} |
|
|
1451 |
|
|
|
1452 |
/** |
|
|
1453 |
* Callback to determine if a node is empty. |
|
|
1454 |
* |
|
|
1455 |
* \param pw HTML document |
|
|
1456 |
* \param node DOM node |
|
|
1457 |
* \param match Pointer to location to receive result |
|
|
1458 |
* \return CSS_OK. |
|
|
1459 |
* |
|
|
1460 |
* \post \a match will contain true if the node is empty and false otherwise. |
|
|
1461 |
*/ |
|
|
1462 |
css_error node_is_empty(void *pw, void *node, bool *match) |
|
|
1463 |
{ |
|
|
1464 |
dom_node *n = node, *next; |
|
|
1465 |
dom_exception err; |
|
|
1466 |
|
|
|
1467 |
*match = true; |
|
|
1468 |
|
|
|
1469 |
err = dom_node_get_first_child(n, &n); |
|
|
1470 |
if (err != DOM_NO_ERR) { |
|
|
1471 |
return CSS_BADPARM; |
|
|
1472 |
} |
|
|
1473 |
|
|
|
1474 |
while (n != NULL) { |
|
|
1475 |
dom_node_type ntype; |
|
|
1476 |
err = dom_node_get_node_type(n, &ntype); |
|
|
1477 |
if (err != DOM_NO_ERR) { |
|
|
1478 |
dom_node_unref(n); |
|
|
1479 |
return CSS_BADPARM; |
|
|
1480 |
} |
|
|
1481 |
|
|
|
1482 |
if (ntype == DOM_ELEMENT_NODE || |
|
|
1483 |
ntype == DOM_TEXT_NODE) { |
|
|
1484 |
*match = false; |
|
|
1485 |
dom_node_unref(n); |
|
|
1486 |
break; |
|
|
1487 |
} |
|
|
1488 |
|
|
|
1489 |
err = dom_node_get_next_sibling(n, &next); |
|
|
1490 |
if (err != DOM_NO_ERR) { |
|
|
1491 |
dom_node_unref(n); |
|
|
1492 |
return CSS_BADPARM; |
|
|
1493 |
} |
|
|
1494 |
dom_node_unref(n); |
|
|
1495 |
n = next; |
|
|
1496 |
} |
|
|
1497 |
|
|
|
1498 |
return CSS_OK; |
|
|
1499 |
} |
|
|
1500 |
|
|
|
1501 |
/** |
|
|
1502 |
* Callback to determine if a node is a linking element. |
|
|
1503 |
* |
|
|
1504 |
* \param pw HTML document |
|
|
1505 |
* \param n DOM node |
|
|
1506 |
* \param match Pointer to location to receive result |
|
|
1507 |
* \return CSS_OK. |
|
|
1508 |
* |
|
|
1509 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
1510 |
*/ |
|
|
1511 |
css_error node_is_link(void *pw, void *n, bool *match) |
|
|
1512 |
{ |
|
|
1513 |
dom_node *node = n; |
|
|
1514 |
dom_exception exc; |
|
|
1515 |
dom_string *node_name = NULL; |
|
|
1516 |
|
|
|
1517 |
exc = dom_node_get_node_name(node, &node_name); |
|
|
1518 |
if ((exc != DOM_NO_ERR) || (node_name == NULL)) { |
|
|
1519 |
return CSS_NOMEM; |
|
|
1520 |
} |
|
|
1521 |
|
|
|
1522 |
if (dom_string_caseless_lwc_isequal(node_name, corestring_lwc_a)) { |
|
|
1523 |
bool has_href; |
|
|
1524 |
exc = dom_element_has_attribute(node, corestring_dom_href, |
|
|
1525 |
&has_href); |
|
|
1526 |
if ((exc == DOM_NO_ERR) && (has_href)) { |
|
|
1527 |
*match = true; |
|
|
1528 |
} else { |
|
|
1529 |
*match = false; |
|
|
1530 |
} |
|
|
1531 |
} else { |
|
|
1532 |
*match = false; |
|
|
1533 |
} |
|
|
1534 |
dom_string_unref(node_name); |
|
|
1535 |
|
|
|
1536 |
return CSS_OK; |
|
|
1537 |
} |
|
|
1538 |
|
|
|
1539 |
/** |
|
|
1540 |
* Callback to determine if a node is a linking element whose target has been |
|
|
1541 |
* visited. |
|
|
1542 |
* |
|
|
1543 |
* \param pw HTML document |
|
|
1544 |
* \param node DOM node |
|
|
1545 |
* \param match Pointer to location to receive result |
|
|
1546 |
* \return CSS_OK. |
|
|
1547 |
* |
|
|
1548 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
1549 |
*/ |
|
|
1550 |
css_error node_is_visited(void *pw, void *node, bool *match) |
|
|
1551 |
{ |
|
|
1552 |
*match = false; |
|
|
1553 |
|
|
|
1554 |
/** \todo Implement visted check in a more performant way */ |
|
|
1555 |
|
|
|
1556 |
#ifdef SUPPORT_VISITED |
|
|
1557 |
nscss_select_ctx *ctx = pw; |
|
|
1558 |
xmlNode *n = node; |
|
|
1559 |
|
|
|
1560 |
if (strcasecmp((const char *) n->name, "a") == 0) { |
|
|
1561 |
nsurl *url; |
|
|
1562 |
nserror error; |
|
|
1563 |
const struct url_data *data; |
|
|
1564 |
xmlChar *href = xmlGetProp(n, (const xmlChar *) "href"); |
|
|
1565 |
|
|
|
1566 |
if (href == NULL) |
|
|
1567 |
return CSS_OK; |
|
|
1568 |
|
|
|
1569 |
/* Make href absolute */ |
|
|
1570 |
/* TODO: this duplicates what we do for box->href */ |
|
|
1571 |
error = nsurl_join(ctx->base_url, (const char *)href, &url); |
|
|
1572 |
|
|
|
1573 |
xmlFree(href); |
|
|
1574 |
if (error != NSERROR_OK) { |
|
|
1575 |
return CSS_NOMEM; |
|
|
1576 |
} |
|
|
1577 |
|
|
|
1578 |
data = urldb_get_url_data(nsurl_access(url)); |
|
|
1579 |
|
|
|
1580 |
/* Visited if in the db and has |
|
|
1581 |
* non-zero visit count */ |
|
|
1582 |
if (data != NULL && data->visits > 0) |
|
|
1583 |
*match = true; |
|
|
1584 |
|
|
|
1585 |
nsurl_unref(url); |
|
|
1586 |
} |
|
|
1587 |
#endif |
|
|
1588 |
|
|
|
1589 |
return CSS_OK; |
|
|
1590 |
} |
|
|
1591 |
|
|
|
1592 |
/** |
|
|
1593 |
* Callback to determine if a node is currently being hovered over. |
|
|
1594 |
* |
|
|
1595 |
* \param pw HTML document |
|
|
1596 |
* \param node DOM node |
|
|
1597 |
* \param match Pointer to location to receive result |
|
|
1598 |
* \return CSS_OK. |
|
|
1599 |
* |
|
|
1600 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
1601 |
*/ |
|
|
1602 |
css_error node_is_hover(void *pw, void *node, bool *match) |
|
|
1603 |
{ |
|
|
1604 |
/** \todo Support hovering */ |
|
|
1605 |
|
|
|
1606 |
*match = false; |
|
|
1607 |
|
|
|
1608 |
return CSS_OK; |
|
|
1609 |
} |
|
|
1610 |
|
|
|
1611 |
/** |
|
|
1612 |
* Callback to determine if a node is currently activated. |
|
|
1613 |
* |
|
|
1614 |
* \param pw HTML document |
|
|
1615 |
* \param node DOM node |
|
|
1616 |
* \param match Pointer to location to receive result |
|
|
1617 |
* \return CSS_OK. |
|
|
1618 |
* |
|
|
1619 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
1620 |
*/ |
|
|
1621 |
css_error node_is_active(void *pw, void *node, bool *match) |
|
|
1622 |
{ |
|
|
1623 |
/** \todo Support active nodes */ |
|
|
1624 |
|
|
|
1625 |
*match = false; |
|
|
1626 |
|
|
|
1627 |
return CSS_OK; |
|
|
1628 |
} |
|
|
1629 |
|
|
|
1630 |
/** |
|
|
1631 |
* Callback to determine if a node has the input focus. |
|
|
1632 |
* |
|
|
1633 |
* \param pw HTML document |
|
|
1634 |
* \param node DOM node |
|
|
1635 |
* \param match Pointer to location to receive result |
|
|
1636 |
* \return CSS_OK. |
|
|
1637 |
* |
|
|
1638 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
1639 |
*/ |
|
|
1640 |
css_error node_is_focus(void *pw, void *node, bool *match) |
|
|
1641 |
{ |
|
|
1642 |
/** \todo Support focussed nodes */ |
|
|
1643 |
|
|
|
1644 |
*match = false; |
|
|
1645 |
|
|
|
1646 |
return CSS_OK; |
|
|
1647 |
} |
|
|
1648 |
|
|
|
1649 |
/** |
|
|
1650 |
* Callback to determine if a node is enabled. |
|
|
1651 |
* |
|
|
1652 |
* \param pw HTML document |
|
|
1653 |
* \param node DOM node |
|
|
1654 |
* \param match Pointer to location to receive result |
|
|
1655 |
* \return CSS_OK. |
|
|
1656 |
* |
|
|
1657 |
* \post \a match with contain true if the node is enabled and false otherwise. |
|
|
1658 |
*/ |
|
|
1659 |
css_error node_is_enabled(void *pw, void *node, bool *match) |
|
|
1660 |
{ |
|
|
1661 |
/** \todo Support enabled nodes */ |
|
|
1662 |
|
|
|
1663 |
*match = false; |
|
|
1664 |
|
|
|
1665 |
return CSS_OK; |
|
|
1666 |
} |
|
|
1667 |
|
|
|
1668 |
/** |
|
|
1669 |
* Callback to determine if a node is disabled. |
|
|
1670 |
* |
|
|
1671 |
* \param pw HTML document |
|
|
1672 |
* \param node DOM node |
|
|
1673 |
* \param match Pointer to location to receive result |
|
|
1674 |
* \return CSS_OK. |
|
|
1675 |
* |
|
|
1676 |
* \post \a match with contain true if the node is disabled and false otherwise. |
|
|
1677 |
*/ |
|
|
1678 |
css_error node_is_disabled(void *pw, void *node, bool *match) |
|
|
1679 |
{ |
|
|
1680 |
/** \todo Support disabled nodes */ |
|
|
1681 |
|
|
|
1682 |
*match = false; |
|
|
1683 |
|
|
|
1684 |
return CSS_OK; |
|
|
1685 |
} |
|
|
1686 |
|
|
|
1687 |
/** |
|
|
1688 |
* Callback to determine if a node is checked. |
|
|
1689 |
* |
|
|
1690 |
* \param pw HTML document |
|
|
1691 |
* \param node DOM node |
|
|
1692 |
* \param match Pointer to location to receive result |
|
|
1693 |
* \return CSS_OK. |
|
|
1694 |
* |
|
|
1695 |
* \post \a match with contain true if the node is checked and false otherwise. |
|
|
1696 |
*/ |
|
|
1697 |
css_error node_is_checked(void *pw, void *node, bool *match) |
|
|
1698 |
{ |
|
|
1699 |
/** \todo Support checked nodes */ |
|
|
1700 |
|
|
|
1701 |
*match = false; |
|
|
1702 |
|
|
|
1703 |
return CSS_OK; |
|
|
1704 |
} |
|
|
1705 |
|
|
|
1706 |
/** |
|
|
1707 |
* Callback to determine if a node is the target of the document URL. |
|
|
1708 |
* |
|
|
1709 |
* \param pw HTML document |
|
|
1710 |
* \param node DOM node |
|
|
1711 |
* \param match Pointer to location to receive result |
|
|
1712 |
* \return CSS_OK. |
|
|
1713 |
* |
|
|
1714 |
* \post \a match with contain true if the node matches and false otherwise. |
|
|
1715 |
*/ |
|
|
1716 |
css_error node_is_target(void *pw, void *node, bool *match) |
|
|
1717 |
{ |
|
|
1718 |
/** \todo Support target */ |
|
|
1719 |
|
|
|
1720 |
*match = false; |
|
|
1721 |
|
|
|
1722 |
return CSS_OK; |
|
|
1723 |
} |
|
|
1724 |
|
|
|
1725 |
/** |
|
|
1726 |
* Callback to determine if a node has the given language |
|
|
1727 |
* |
|
|
1728 |
* \param pw HTML document |
|
|
1729 |
* \param node DOM node |
|
|
1730 |
* \param lang Language specifier to match |
|
|
1731 |
* \param match Pointer to location to receive result |
|
|
1732 |
* \return CSS_OK. |
|
|
1733 |
* |
|
|
1734 |
* \post \a match will contain true if the node matches and false otherwise. |
|
|
1735 |
*/ |
|
|
1736 |
css_error node_is_lang(void *pw, void *node, |
|
|
1737 |
lwc_string *lang, bool *match) |
|
|
1738 |
{ |
|
|
1739 |
/** \todo Support languages */ |
|
|
1740 |
|
|
|
1741 |
*match = false; |
|
|
1742 |
|
|
|
1743 |
return CSS_OK; |
|
|
1744 |
} |
|
|
1745 |
|
|
|
1746 |
static css_error |
|
|
1747 |
node_presentational_hint_vertical_align(nscss_select_ctx *ctx, |
|
|
1748 |
dom_node *node, |
|
|
1749 |
css_hint *hint) |
|
|
1750 |
{ |
|
|
1751 |
dom_string *name; |
|
|
1752 |
dom_string *valign = NULL; |
|
|
1753 |
dom_exception err; |
|
|
1754 |
|
|
|
1755 |
err = dom_node_get_node_name(node, &name); |
|
|
1756 |
if (err != DOM_NO_ERR) |
|
|
1757 |
return CSS_PROPERTY_NOT_SET; |
|
|
1758 |
|
|
|
1759 |
if (dom_string_caseless_lwc_isequal(name, corestring_lwc_col) || |
|
|
1760 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_thead) || |
|
|
1761 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_tbody) || |
|
|
1762 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_tfoot) || |
|
|
1763 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_tr) || |
|
|
1764 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_td) || |
|
|
1765 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_th)) { |
|
|
1766 |
err = dom_element_get_attribute(node, |
|
|
1767 |
corestring_dom_valign, &valign); |
|
|
1768 |
if (err != DOM_NO_ERR || valign == NULL) { |
|
|
1769 |
dom_string_unref(name); |
|
|
1770 |
return CSS_PROPERTY_NOT_SET; |
|
|
1771 |
} |
|
|
1772 |
|
|
|
1773 |
if (dom_string_caseless_lwc_isequal(valign, |
|
|
1774 |
corestring_lwc_top)) { |
|
|
1775 |
hint->status = CSS_VERTICAL_ALIGN_TOP; |
|
|
1776 |
} else if (dom_string_caseless_lwc_isequal(valign, |
|
|
1777 |
corestring_lwc_middle)) { |
|
|
1778 |
hint->status = CSS_VERTICAL_ALIGN_MIDDLE; |
|
|
1779 |
} else if (dom_string_caseless_lwc_isequal(valign, |
|
|
1780 |
corestring_lwc_bottom)) { |
|
|
1781 |
hint->status = CSS_VERTICAL_ALIGN_BOTTOM; |
|
|
1782 |
} else if (dom_string_caseless_lwc_isequal(valign, |
|
|
1783 |
corestring_lwc_baseline)) { |
|
|
1784 |
hint->status = CSS_VERTICAL_ALIGN_BASELINE; |
|
|
1785 |
} else { |
|
|
1786 |
dom_string_unref(valign); |
|
|
1787 |
dom_string_unref(name); |
|
|
1788 |
return CSS_PROPERTY_NOT_SET; |
|
|
1789 |
} |
|
|
1790 |
|
|
|
1791 |
dom_string_unref(valign); |
|
|
1792 |
dom_string_unref(name); |
|
|
1793 |
|
|
|
1794 |
return CSS_OK; |
|
|
1795 |
} else if (dom_string_caseless_lwc_isequal(name, |
|
|
1796 |
corestring_lwc_applet) || |
|
|
1797 |
dom_string_caseless_lwc_isequal(name, |
|
|
1798 |
corestring_lwc_embed) || |
|
|
1799 |
dom_string_caseless_lwc_isequal(name, |
|
|
1800 |
corestring_lwc_iframe) || |
|
|
1801 |
dom_string_caseless_lwc_isequal(name, |
|
|
1802 |
corestring_lwc_img) || |
|
|
1803 |
dom_string_caseless_lwc_isequal(name, |
|
|
1804 |
corestring_lwc_object)) { |
|
|
1805 |
/** \todo input[type=image][align=*] - $11.3.3 */ |
|
|
1806 |
err = dom_element_get_attribute(node, |
|
|
1807 |
corestring_dom_align, &valign); |
|
|
1808 |
if (err != DOM_NO_ERR || valign == NULL) { |
|
|
1809 |
dom_string_unref(name); |
|
|
1810 |
return CSS_PROPERTY_NOT_SET; |
|
|
1811 |
} |
|
|
1812 |
|
|
|
1813 |
if (dom_string_caseless_lwc_isequal(valign, |
|
|
1814 |
corestring_lwc_top)) { |
|
|
1815 |
hint->status = CSS_VERTICAL_ALIGN_TOP; |
|
|
1816 |
} else if (dom_string_caseless_lwc_isequal(valign, |
|
|
1817 |
corestring_lwc_bottom) || |
|
|
1818 |
dom_string_caseless_lwc_isequal(valign, |
|
|
1819 |
corestring_lwc_baseline)) { |
|
|
1820 |
hint->status = CSS_VERTICAL_ALIGN_BASELINE; |
|
|
1821 |
} else if (dom_string_caseless_lwc_isequal(valign, |
|
|
1822 |
corestring_lwc_texttop)) { |
|
|
1823 |
hint->status = CSS_VERTICAL_ALIGN_TEXT_TOP; |
|
|
1824 |
} else if (dom_string_caseless_lwc_isequal(valign, |
|
|
1825 |
corestring_lwc_absmiddle) || |
|
|
1826 |
dom_string_caseless_lwc_isequal(valign, |
|
|
1827 |
corestring_lwc_abscenter)) { |
|
|
1828 |
hint->status = CSS_VERTICAL_ALIGN_MIDDLE; |
|
|
1829 |
} else { |
|
|
1830 |
dom_string_unref(valign); |
|
|
1831 |
dom_string_unref(name); |
|
|
1832 |
return CSS_PROPERTY_NOT_SET; |
|
|
1833 |
} |
|
|
1834 |
|
|
|
1835 |
dom_string_unref(valign); |
|
|
1836 |
dom_string_unref(name); |
|
|
1837 |
|
|
|
1838 |
return CSS_OK; |
|
|
1839 |
} |
|
|
1840 |
|
|
|
1841 |
dom_string_unref(name); |
|
|
1842 |
return CSS_PROPERTY_NOT_SET; |
|
|
1843 |
} |
|
|
1844 |
|
|
|
1845 |
static css_error |
|
|
1846 |
node_presentational_hint_text_align(nscss_select_ctx *ctx, |
|
|
1847 |
dom_node *node, |
|
|
1848 |
css_hint *hint) |
|
|
1849 |
{ |
|
|
1850 |
dom_string *name; |
|
|
1851 |
dom_string *align = NULL; |
|
|
1852 |
dom_exception err; |
|
|
1853 |
|
|
|
1854 |
err = dom_node_get_node_name(node, &name); |
|
|
1855 |
if (err != DOM_NO_ERR) |
|
|
1856 |
return CSS_PROPERTY_NOT_SET; |
|
|
1857 |
|
|
|
1858 |
if (dom_string_caseless_lwc_isequal(name, corestring_lwc_p) || |
|
|
1859 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_h1) || |
|
|
1860 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_h2) || |
|
|
1861 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_h3) || |
|
|
1862 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_h4) || |
|
|
1863 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_h5) || |
|
|
1864 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_h6)) { |
|
|
1865 |
err = dom_element_get_attribute(node, |
|
|
1866 |
corestring_dom_align, &align); |
|
|
1867 |
if (err != DOM_NO_ERR || align == NULL) { |
|
|
1868 |
dom_string_unref(name); |
|
|
1869 |
return CSS_PROPERTY_NOT_SET; |
|
|
1870 |
} |
|
|
1871 |
|
|
|
1872 |
if (dom_string_caseless_lwc_isequal(align, |
|
|
1873 |
corestring_lwc_left)) { |
|
|
1874 |
hint->status = CSS_TEXT_ALIGN_LEFT; |
|
|
1875 |
} else if (dom_string_caseless_lwc_isequal(align, |
|
|
1876 |
corestring_lwc_center)) { |
|
|
1877 |
hint->status = CSS_TEXT_ALIGN_CENTER; |
|
|
1878 |
} else if (dom_string_caseless_lwc_isequal(align, |
|
|
1879 |
corestring_lwc_right)) { |
|
|
1880 |
hint->status = CSS_TEXT_ALIGN_RIGHT; |
|
|
1881 |
} else if (dom_string_caseless_lwc_isequal(align, |
|
|
1882 |
corestring_lwc_justify)) { |
|
|
1883 |
hint->status = CSS_TEXT_ALIGN_JUSTIFY; |
|
|
1884 |
} else { |
|
|
1885 |
dom_string_unref(align); |
|
|
1886 |
dom_string_unref(name); |
|
|
1887 |
return CSS_PROPERTY_NOT_SET; |
|
|
1888 |
} |
|
|
1889 |
|
|
|
1890 |
dom_string_unref(align); |
|
|
1891 |
dom_string_unref(name); |
|
|
1892 |
|
|
|
1893 |
return CSS_OK; |
|
|
1894 |
} else if (dom_string_caseless_lwc_isequal(name, |
|
|
1895 |
corestring_lwc_center)) { |
|
|
1896 |
hint->status = CSS_TEXT_ALIGN_LIBCSS_CENTER; |
|
|
1897 |
|
|
|
1898 |
dom_string_unref(name); |
|
|
1899 |
|
|
|
1900 |
return CSS_OK; |
|
|
1901 |
} else if (dom_string_caseless_lwc_isequal(name, |
|
|
1902 |
corestring_lwc_caption)) { |
|
|
1903 |
err = dom_element_get_attribute(node, |
|
|
1904 |
corestring_dom_align, &align); |
|
|
1905 |
if (err != DOM_NO_ERR) { |
|
|
1906 |
dom_string_unref(name); |
|
|
1907 |
return CSS_PROPERTY_NOT_SET; |
|
|
1908 |
} |
|
|
1909 |
|
|
|
1910 |
if (align == NULL || dom_string_caseless_lwc_isequal(align, |
|
|
1911 |
corestring_lwc_center)) { |
|
|
1912 |
hint->status = CSS_TEXT_ALIGN_LIBCSS_CENTER; |
|
|
1913 |
} else if (dom_string_caseless_lwc_isequal(align, |
|
|
1914 |
corestring_lwc_left)) { |
|
|
1915 |
hint->status = CSS_TEXT_ALIGN_LIBCSS_LEFT; |
|
|
1916 |
} else if (dom_string_caseless_lwc_isequal(align, |
|
|
1917 |
corestring_lwc_right)) { |
|
|
1918 |
hint->status = CSS_TEXT_ALIGN_LIBCSS_RIGHT; |
|
|
1919 |
} else if (dom_string_caseless_lwc_isequal(align, |
|
|
1920 |
corestring_lwc_justify)) { |
|
|
1921 |
hint->status = CSS_TEXT_ALIGN_JUSTIFY; |
|
|
1922 |
} else { |
|
|
1923 |
dom_string_unref(align); |
|
|
1924 |
dom_string_unref(name); |
|
|
1925 |
return CSS_PROPERTY_NOT_SET; |
|
|
1926 |
} |
|
|
1927 |
|
|
|
1928 |
if (align != NULL) |
|
|
1929 |
dom_string_unref(align); |
|
|
1930 |
dom_string_unref(name); |
|
|
1931 |
|
|
|
1932 |
return CSS_OK; |
|
|
1933 |
} else if (dom_string_caseless_lwc_isequal(name, |
|
|
1934 |
corestring_lwc_div) || |
|
|
1935 |
dom_string_caseless_lwc_isequal(name, |
|
|
1936 |
corestring_lwc_thead) || |
|
|
1937 |
dom_string_caseless_lwc_isequal(name, |
|
|
1938 |
corestring_lwc_tbody) || |
|
|
1939 |
dom_string_caseless_lwc_isequal(name, |
|
|
1940 |
corestring_lwc_tfoot) || |
|
|
1941 |
dom_string_caseless_lwc_isequal(name, |
|
|
1942 |
corestring_lwc_tr) || |
|
|
1943 |
dom_string_caseless_lwc_isequal(name, |
|
|
1944 |
corestring_lwc_td) || |
|
|
1945 |
dom_string_caseless_lwc_isequal(name, |
|
|
1946 |
corestring_lwc_th)) { |
|
|
1947 |
err = dom_element_get_attribute(node, |
|
|
1948 |
corestring_dom_align, &align); |
|
|
1949 |
if (err != DOM_NO_ERR || align == NULL) { |
|
|
1950 |
dom_string_unref(name); |
|
|
1951 |
return CSS_PROPERTY_NOT_SET; |
|
|
1952 |
} |
|
|
1953 |
|
|
|
1954 |
if (dom_string_caseless_lwc_isequal(align, |
|
|
1955 |
corestring_lwc_center)) { |
|
|
1956 |
hint->status = CSS_TEXT_ALIGN_LIBCSS_CENTER; |
|
|
1957 |
} else if (dom_string_caseless_lwc_isequal(align, |
|
|
1958 |
corestring_lwc_left)) { |
|
|
1959 |
hint->status = CSS_TEXT_ALIGN_LIBCSS_LEFT; |
|
|
1960 |
} else if (dom_string_caseless_lwc_isequal(align, |
|
|
1961 |
corestring_lwc_right)) { |
|
|
1962 |
hint->status = CSS_TEXT_ALIGN_LIBCSS_RIGHT; |
|
|
1963 |
} else if (dom_string_caseless_lwc_isequal(align, |
|
|
1964 |
corestring_lwc_justify)) { |
|
|
1965 |
hint->status = CSS_TEXT_ALIGN_JUSTIFY; |
|
|
1966 |
} else { |
|
|
1967 |
dom_string_unref(align); |
|
|
1968 |
dom_string_unref(name); |
|
|
1969 |
return CSS_PROPERTY_NOT_SET; |
|
|
1970 |
} |
|
|
1971 |
|
|
|
1972 |
dom_string_unref(align); |
|
|
1973 |
dom_string_unref(name); |
|
|
1974 |
|
|
|
1975 |
return CSS_OK; |
|
|
1976 |
} else if (dom_string_caseless_lwc_isequal(name, |
|
|
1977 |
corestring_lwc_table)) { |
|
|
1978 |
/* Tables usually reset alignment */ |
|
|
1979 |
hint->status = CSS_TEXT_ALIGN_INHERIT_IF_NON_MAGIC; |
|
|
1980 |
|
|
|
1981 |
dom_string_unref(name); |
|
|
1982 |
|
|
|
1983 |
return CSS_OK; |
|
|
1984 |
} else { |
|
|
1985 |
dom_string_unref(name); |
|
|
1986 |
|
|
|
1987 |
return CSS_PROPERTY_NOT_SET; |
|
|
1988 |
} |
|
|
1989 |
|
|
|
1990 |
} |
|
|
1991 |
|
|
|
1992 |
static css_error |
|
|
1993 |
node_presentational_hint_padding_trbl(nscss_select_ctx *ctx, |
|
|
1994 |
dom_node *node, |
|
|
1995 |
css_hint *hint) |
|
|
1996 |
{ |
|
|
1997 |
dom_string *name; |
|
|
1998 |
dom_exception exc; |
|
|
1999 |
dom_string *cellpadding = NULL; |
|
|
2000 |
|
|
|
2001 |
exc = dom_node_get_node_name(node, &name); |
|
|
2002 |
if (exc != DOM_NO_ERR) |
|
|
2003 |
return CSS_BADPARM; |
|
|
2004 |
|
|
|
2005 |
if (dom_string_caseless_lwc_isequal(name, corestring_lwc_td) || |
|
|
2006 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_th)) { |
|
|
2007 |
css_qname qs; |
|
|
2008 |
dom_node *tablenode = NULL; |
|
|
2009 |
qs.ns = NULL; |
|
|
2010 |
qs.name = lwc_string_ref(corestring_lwc_table); |
|
|
2011 |
if (named_ancestor_node(ctx, node, &qs, |
|
|
2012 |
(void *)&tablenode) != CSS_OK) { |
|
|
2013 |
/* Didn't find, or had error */ |
|
|
2014 |
dom_string_unref(name); |
|
|
2015 |
return CSS_PROPERTY_NOT_SET; |
|
|
2016 |
} |
|
|
2017 |
|
|
|
2018 |
lwc_string_unref(qs.name); |
|
|
2019 |
|
|
|
2020 |
if (tablenode != NULL) { |
|
|
2021 |
exc = dom_element_get_attribute(tablenode, |
|
|
2022 |
corestring_dom_cellpadding, |
|
|
2023 |
&cellpadding); |
|
|
2024 |
if (exc != DOM_NO_ERR) { |
|
|
2025 |
dom_string_unref(name); |
|
|
2026 |
return CSS_BADPARM; |
|
|
2027 |
} |
|
|
2028 |
} |
|
|
2029 |
/* No need to unref tablenode, named_ancestor_node does not |
|
|
2030 |
* return a reffed node to the CSS |
|
|
2031 |
*/ |
|
|
2032 |
} |
|
|
2033 |
|
|
|
2034 |
dom_string_unref(name); |
|
|
2035 |
|
|
|
2036 |
if (cellpadding == NULL) |
|
|
2037 |
return CSS_PROPERTY_NOT_SET; |
|
|
2038 |
|
|
|
2039 |
if (parse_dimension(dom_string_data(cellpadding), false, |
|
|
2040 |
&hint->data.length.value, |
|
|
2041 |
&hint->data.length.unit)) { |
|
|
2042 |
hint->status = CSS_PADDING_SET; |
|
|
2043 |
} else { |
|
|
2044 |
dom_string_unref(cellpadding); |
|
|
2045 |
return CSS_PROPERTY_NOT_SET; |
|
|
2046 |
} |
|
|
2047 |
|
|
|
2048 |
return CSS_OK; |
|
|
2049 |
} |
|
|
2050 |
|
|
|
2051 |
static css_error |
|
|
2052 |
node_presentational_hint_margin_rl(nscss_select_ctx *ctx, |
|
|
2053 |
dom_node *node, |
|
|
2054 |
css_hint *hint, |
|
|
2055 |
uint32_t property) |
|
|
2056 |
{ |
|
|
2057 |
dom_string *n; |
|
|
2058 |
dom_exception exc; |
|
|
2059 |
|
|
|
2060 |
exc = dom_node_get_node_name(node, &n); |
|
|
2061 |
if (exc != DOM_NO_ERR) |
|
|
2062 |
return CSS_BADPARM; |
|
|
2063 |
|
|
|
2064 |
if (dom_string_caseless_lwc_isequal(n, corestring_lwc_img) || |
|
|
2065 |
dom_string_caseless_lwc_isequal(n, corestring_lwc_applet)) { |
|
|
2066 |
dom_string_unref(n); |
|
|
2067 |
exc = dom_element_get_attribute(node, |
|
|
2068 |
corestring_dom_hspace, &n); |
|
|
2069 |
if (exc != DOM_NO_ERR) { |
|
|
2070 |
return CSS_BADPARM; |
|
|
2071 |
} |
|
|
2072 |
|
|
|
2073 |
if (n == NULL) |
|
|
2074 |
return CSS_PROPERTY_NOT_SET; |
|
|
2075 |
|
|
|
2076 |
if (parse_dimension(dom_string_data(n), false, |
|
|
2077 |
&hint->data.length.value, |
|
|
2078 |
&hint->data.length.unit)) { |
|
|
2079 |
hint->status = CSS_MARGIN_SET; |
|
|
2080 |
} else { |
|
|
2081 |
dom_string_unref(n); |
|
|
2082 |
return CSS_PROPERTY_NOT_SET; |
|
|
2083 |
} |
|
|
2084 |
dom_string_unref(n); |
|
|
2085 |
return CSS_OK; |
|
|
2086 |
} else if (dom_string_caseless_lwc_isequal(n, corestring_lwc_table) || |
|
|
2087 |
dom_string_caseless_lwc_isequal(n, corestring_lwc_align)) { |
|
|
2088 |
dom_string_unref(n); |
|
|
2089 |
exc = dom_element_get_attribute(node, |
|
|
2090 |
corestring_dom_align, &n); |
|
|
2091 |
if (exc != DOM_NO_ERR) { |
|
|
2092 |
return CSS_BADPARM; |
|
|
2093 |
} |
|
|
2094 |
|
|
|
2095 |
if (n == NULL) |
|
|
2096 |
return CSS_PROPERTY_NOT_SET; |
|
|
2097 |
|
|
|
2098 |
if (dom_string_caseless_lwc_isequal(n, |
|
|
2099 |
corestring_lwc_center) || |
|
|
2100 |
dom_string_caseless_lwc_isequal(n, |
|
|
2101 |
corestring_lwc_abscenter) || |
|
|
2102 |
dom_string_caseless_lwc_isequal(n, |
|
|
2103 |
corestring_lwc_middle) || |
|
|
2104 |
dom_string_caseless_lwc_isequal(n, |
|
|
2105 |
corestring_lwc_absmiddle)) { |
|
|
2106 |
hint->status = CSS_MARGIN_AUTO; |
|
|
2107 |
} else { |
|
|
2108 |
dom_string_unref(n); |
|
|
2109 |
return CSS_PROPERTY_NOT_SET; |
|
|
2110 |
} |
|
|
2111 |
|
|
|
2112 |
dom_string_unref(n); |
|
|
2113 |
return CSS_OK; |
|
|
2114 |
} else if (dom_string_caseless_lwc_isequal(n, corestring_lwc_hr)) { |
|
|
2115 |
dom_string_unref(n); |
|
|
2116 |
exc = dom_element_get_attribute(node, |
|
|
2117 |
corestring_dom_align, &n); |
|
|
2118 |
if (exc != DOM_NO_ERR) |
|
|
2119 |
return CSS_BADPARM; |
|
|
2120 |
|
|
|
2121 |
if (n == NULL) |
|
|
2122 |
return CSS_PROPERTY_NOT_SET; |
|
|
2123 |
|
|
|
2124 |
if (dom_string_caseless_lwc_isequal(n, |
|
|
2125 |
corestring_lwc_left)) { |
|
|
2126 |
if (property == CSS_PROP_MARGIN_LEFT) { |
|
|
2127 |
hint->data.length.value = 0; |
|
|
2128 |
hint->data.length.unit = CSS_UNIT_PX; |
|
|
2129 |
hint->status = CSS_MARGIN_SET; |
|
|
2130 |
} else { |
|
|
2131 |
hint->status = CSS_MARGIN_AUTO; |
|
|
2132 |
} |
|
|
2133 |
} else if (dom_string_caseless_lwc_isequal(n, |
|
|
2134 |
corestring_lwc_center)) { |
|
|
2135 |
hint->status = CSS_MARGIN_AUTO; |
|
|
2136 |
} else if (dom_string_caseless_lwc_isequal(n, |
|
|
2137 |
corestring_lwc_right)) { |
|
|
2138 |
if (property == CSS_PROP_MARGIN_RIGHT) { |
|
|
2139 |
hint->data.length.value = 0; |
|
|
2140 |
hint->data.length.unit = CSS_UNIT_PX; |
|
|
2141 |
hint->status = CSS_MARGIN_SET; |
|
|
2142 |
} else { |
|
|
2143 |
hint->status = CSS_MARGIN_AUTO; |
|
|
2144 |
} |
|
|
2145 |
} else { |
|
|
2146 |
dom_string_unref(n); |
|
|
2147 |
return CSS_PROPERTY_NOT_SET; |
|
|
2148 |
} |
|
|
2149 |
dom_string_unref(n); |
|
|
2150 |
|
|
|
2151 |
return CSS_OK; |
|
|
2152 |
} |
|
|
2153 |
|
|
|
2154 |
dom_string_unref(n); |
|
|
2155 |
|
|
|
2156 |
return CSS_PROPERTY_NOT_SET; |
|
|
2157 |
} |
|
|
2158 |
|
|
|
2159 |
static css_error |
|
|
2160 |
node_presentational_hint_margin_tb(nscss_select_ctx *ctx, |
|
|
2161 |
dom_node *node, |
|
|
2162 |
css_hint *hint) |
|
|
2163 |
{ |
|
|
2164 |
dom_string *name, *vspace = NULL; |
|
|
2165 |
dom_exception exc; |
|
|
2166 |
|
|
|
2167 |
exc = dom_node_get_node_name(node, &name); |
|
|
2168 |
if (exc != DOM_NO_ERR) |
|
|
2169 |
return CSS_BADPARM; |
|
|
2170 |
|
|
|
2171 |
if (dom_string_caseless_lwc_isequal(name, corestring_lwc_img) || |
|
|
2172 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_applet)) { |
|
|
2173 |
exc = dom_element_get_attribute(node, corestring_dom_vspace, |
|
|
2174 |
&vspace); |
|
|
2175 |
if (exc != DOM_NO_ERR) { |
|
|
2176 |
dom_string_unref(name); |
|
|
2177 |
return CSS_BADPARM; |
|
|
2178 |
} |
|
|
2179 |
} |
|
|
2180 |
|
|
|
2181 |
dom_string_unref(name); |
|
|
2182 |
|
|
|
2183 |
if (vspace == NULL) |
|
|
2184 |
return CSS_PROPERTY_NOT_SET; |
|
|
2185 |
|
|
|
2186 |
if (parse_dimension(dom_string_data(vspace), false, |
|
|
2187 |
&hint->data.length.value, |
|
|
2188 |
&hint->data.length.unit)) { |
|
|
2189 |
hint->status = CSS_MARGIN_SET; |
|
|
2190 |
} else { |
|
|
2191 |
dom_string_unref(vspace); |
|
|
2192 |
return CSS_PROPERTY_NOT_SET; |
|
|
2193 |
} |
|
|
2194 |
|
|
|
2195 |
dom_string_unref(vspace); |
|
|
2196 |
|
|
|
2197 |
return CSS_OK; |
|
|
2198 |
} |
|
|
2199 |
|
|
|
2200 |
static css_error |
|
|
2201 |
node_presentational_hint_border_trbl_width(nscss_select_ctx *ctx, |
|
|
2202 |
dom_node *node, |
|
|
2203 |
css_hint *hint) |
|
|
2204 |
{ |
|
|
2205 |
dom_string *name; |
|
|
2206 |
dom_exception exc; |
|
|
2207 |
dom_string *width = NULL; |
|
|
2208 |
bool is_table_cell = false; |
|
|
2209 |
|
|
|
2210 |
exc = dom_node_get_node_name(node, &name); |
|
|
2211 |
if (exc != DOM_NO_ERR) |
|
|
2212 |
return CSS_BADPARM; |
|
|
2213 |
|
|
|
2214 |
if (dom_string_caseless_lwc_isequal(name, corestring_lwc_td) || |
|
|
2215 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_th)) { |
|
|
2216 |
css_qname qs; |
|
|
2217 |
dom_node *tablenode = NULL; |
|
|
2218 |
qs.ns = NULL; |
|
|
2219 |
qs.name = lwc_string_ref(corestring_lwc_table); |
|
|
2220 |
if (named_ancestor_node(ctx, node, &qs, |
|
|
2221 |
(void *)&tablenode) != CSS_OK) { |
|
|
2222 |
/* Didn't find, or had error */ |
|
|
2223 |
lwc_string_unref(qs.name); |
|
|
2224 |
dom_string_unref(name); |
|
|
2225 |
return CSS_PROPERTY_NOT_SET; |
|
|
2226 |
} |
|
|
2227 |
|
|
|
2228 |
lwc_string_unref(qs.name); |
|
|
2229 |
if (tablenode != NULL) { |
|
|
2230 |
exc = dom_element_get_attribute(tablenode, |
|
|
2231 |
corestring_dom_border, &width); |
|
|
2232 |
if (exc != DOM_NO_ERR) { |
|
|
2233 |
dom_string_unref(name); |
|
|
2234 |
return CSS_BADPARM; |
|
|
2235 |
} |
|
|
2236 |
} |
|
|
2237 |
/* No need to unref tablenode, named_ancestor_node does not |
|
|
2238 |
* return a reffed node to the CSS |
|
|
2239 |
*/ |
|
|
2240 |
is_table_cell = true; |
|
|
2241 |
} else if (dom_string_caseless_lwc_isequal(name, |
|
|
2242 |
corestring_lwc_table)) { |
|
|
2243 |
exc = dom_element_get_attribute(node, corestring_dom_border, |
|
|
2244 |
&width); |
|
|
2245 |
if (exc != DOM_NO_ERR) { |
|
|
2246 |
dom_string_unref(name); |
|
|
2247 |
return CSS_BADPARM; |
|
|
2248 |
} |
|
|
2249 |
} |
|
|
2250 |
|
|
|
2251 |
dom_string_unref(name); |
|
|
2252 |
|
|
|
2253 |
if (width == NULL) |
|
|
2254 |
return CSS_PROPERTY_NOT_SET; |
|
|
2255 |
|
|
|
2256 |
if (parse_dimension(dom_string_data(width), false, |
|
|
2257 |
&hint->data.length.value, |
|
|
2258 |
&hint->data.length.unit)) { |
|
|
2259 |
if (is_table_cell && |
|
|
2260 |
INTTOFIX(0) != |
|
|
2261 |
hint->data.length.value) { |
|
|
2262 |
hint->data.length.value = INTTOFIX(1); |
|
|
2263 |
hint->data.length.unit = CSS_UNIT_PX; |
|
|
2264 |
} |
|
|
2265 |
hint->status = CSS_BORDER_WIDTH_WIDTH; |
|
|
2266 |
} else { |
|
|
2267 |
dom_string_unref(width); |
|
|
2268 |
return CSS_PROPERTY_NOT_SET; |
|
|
2269 |
} |
|
|
2270 |
|
|
|
2271 |
dom_string_unref(width); |
|
|
2272 |
|
|
|
2273 |
return CSS_OK; |
|
|
2274 |
} |
|
|
2275 |
|
|
|
2276 |
static css_error |
|
|
2277 |
node_presentational_hint_border_trbl_style(nscss_select_ctx *ctx, |
|
|
2278 |
dom_node *node, |
|
|
2279 |
css_hint *hint) |
|
|
2280 |
{ |
|
|
2281 |
dom_string *name; |
|
|
2282 |
dom_exception exc; |
|
|
2283 |
|
|
|
2284 |
exc = dom_node_get_node_name(node, &name); |
|
|
2285 |
if (exc != DOM_NO_ERR) |
|
|
2286 |
return CSS_BADPARM; |
|
|
2287 |
|
|
|
2288 |
if (dom_string_caseless_lwc_isequal(name, corestring_lwc_td) || |
|
|
2289 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_th)) { |
|
|
2290 |
css_qname qs; |
|
|
2291 |
dom_node *tablenode = NULL; |
|
|
2292 |
qs.ns = NULL; |
|
|
2293 |
qs.name = lwc_string_ref(corestring_lwc_table); |
|
|
2294 |
|
|
|
2295 |
if (named_ancestor_node(ctx, node, &qs, |
|
|
2296 |
(void *)&tablenode) != CSS_OK) { |
|
|
2297 |
/* Didn't find, or had error */ |
|
|
2298 |
lwc_string_unref(qs.name); |
|
|
2299 |
dom_string_unref(name); |
|
|
2300 |
return CSS_PROPERTY_NOT_SET; |
|
|
2301 |
} |
|
|
2302 |
|
|
|
2303 |
lwc_string_unref(qs.name); |
|
|
2304 |
|
|
|
2305 |
if (tablenode != NULL) { |
|
|
2306 |
bool has_border = false; |
|
|
2307 |
|
|
|
2308 |
exc = dom_element_has_attribute(tablenode, |
|
|
2309 |
corestring_dom_border, |
|
|
2310 |
&has_border); |
|
|
2311 |
if (exc != DOM_NO_ERR) { |
|
|
2312 |
dom_string_unref(name); |
|
|
2313 |
return CSS_BADPARM; |
|
|
2314 |
} |
|
|
2315 |
|
|
|
2316 |
if (has_border) { |
|
|
2317 |
hint->status = CSS_BORDER_STYLE_INSET; |
|
|
2318 |
dom_string_unref(name); |
|
|
2319 |
return CSS_OK; |
|
|
2320 |
} |
|
|
2321 |
} |
|
|
2322 |
/* No need to unref tablenode, named_ancestor_node does not |
|
|
2323 |
* return a reffed node to the CSS |
|
|
2324 |
*/ |
|
|
2325 |
} else if (dom_string_caseless_lwc_isequal(name, |
|
|
2326 |
corestring_lwc_table)) { |
|
|
2327 |
bool has_border = false; |
|
|
2328 |
|
|
|
2329 |
exc = dom_element_has_attribute(node, |
|
|
2330 |
corestring_dom_border, |
|
|
2331 |
&has_border); |
|
|
2332 |
if (exc != DOM_NO_ERR) { |
|
|
2333 |
dom_string_unref(name); |
|
|
2334 |
return CSS_BADPARM; |
|
|
2335 |
} |
|
|
2336 |
|
|
|
2337 |
if (has_border) { |
|
|
2338 |
hint->status = CSS_BORDER_STYLE_OUTSET; |
|
|
2339 |
dom_string_unref(name); |
|
|
2340 |
return CSS_OK; |
|
|
2341 |
} |
|
|
2342 |
} |
|
|
2343 |
|
|
|
2344 |
dom_string_unref(name); |
|
|
2345 |
|
|
|
2346 |
return CSS_PROPERTY_NOT_SET; |
|
|
2347 |
} |
|
|
2348 |
|
|
|
2349 |
static css_error |
|
|
2350 |
node_presentational_hint_border_trbl_color(nscss_select_ctx *ctx, |
|
|
2351 |
dom_node *node, |
|
|
2352 |
css_hint *hint) |
|
|
2353 |
{ |
|
|
2354 |
dom_string *name; |
|
|
2355 |
dom_string *bordercolor = NULL; |
|
|
2356 |
dom_exception err; |
|
|
2357 |
|
|
|
2358 |
err = dom_node_get_node_name(node, &name); |
|
|
2359 |
if (err != DOM_NO_ERR) |
|
|
2360 |
return CSS_PROPERTY_NOT_SET; |
|
|
2361 |
|
|
|
2362 |
if (dom_string_caseless_lwc_isequal(name, corestring_lwc_td) || |
|
|
2363 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_th)) { |
|
|
2364 |
css_qname qs; |
|
|
2365 |
dom_node *tablenode = NULL; |
|
|
2366 |
qs.ns = NULL; |
|
|
2367 |
qs.name = lwc_string_ref(corestring_lwc_table); |
|
|
2368 |
|
|
|
2369 |
if (named_ancestor_node(ctx, node, &qs, |
|
|
2370 |
(void *)&tablenode) != CSS_OK) { |
|
|
2371 |
/* Didn't find, or had error */ |
|
|
2372 |
lwc_string_unref(qs.name); |
|
|
2373 |
dom_string_unref(name); |
|
|
2374 |
return CSS_PROPERTY_NOT_SET; |
|
|
2375 |
} |
|
|
2376 |
|
|
|
2377 |
lwc_string_unref(qs.name); |
|
|
2378 |
|
|
|
2379 |
if (tablenode != NULL) { |
|
|
2380 |
err = dom_element_get_attribute(node, |
|
|
2381 |
corestring_dom_bordercolor, |
|
|
2382 |
&bordercolor); |
|
|
2383 |
} |
|
|
2384 |
/* No need to unref tablenode, named_ancestor_node does not |
|
|
2385 |
* return a reffed node to the CSS |
|
|
2386 |
*/ |
|
|
2387 |
|
|
|
2388 |
} else if (dom_string_caseless_lwc_isequal(name, |
|
|
2389 |
corestring_lwc_table)) { |
|
|
2390 |
err = dom_element_get_attribute(node, |
|
|
2391 |
corestring_dom_bordercolor, |
|
|
2392 |
&bordercolor); |
|
|
2393 |
} |
|
|
2394 |
|
|
|
2395 |
dom_string_unref(name); |
|
|
2396 |
|
|
|
2397 |
if ((err != DOM_NO_ERR) || (bordercolor == NULL)) { |
|
|
2398 |
return CSS_PROPERTY_NOT_SET; |
|
|
2399 |
} |
|
|
2400 |
|
|
|
2401 |
if (nscss_parse_colour((const char *)dom_string_data(bordercolor), |
|
|
2402 |
&hint->data.color)) { |
|
|
2403 |
hint->status = CSS_BORDER_COLOR_COLOR; |
|
|
2404 |
dom_string_unref(bordercolor); |
|
|
2405 |
return CSS_OK; |
|
|
2406 |
} |
|
|
2407 |
|
|
|
2408 |
dom_string_unref(bordercolor); |
|
|
2409 |
return CSS_PROPERTY_NOT_SET; |
|
|
2410 |
} |
|
|
2411 |
|
|
|
2412 |
static css_error |
|
|
2413 |
node_presentational_hint_border_spacing(nscss_select_ctx *ctx, |
|
|
2414 |
dom_node *node, |
|
|
2415 |
css_hint *hint) |
|
|
2416 |
{ |
|
|
2417 |
dom_exception err; |
|
|
2418 |
dom_string *node_name = NULL; |
|
|
2419 |
dom_string *cellspacing = NULL; |
|
|
2420 |
|
|
|
2421 |
err = dom_node_get_node_name(node, &node_name); |
|
|
2422 |
if ((err != DOM_NO_ERR) || (node_name == NULL)) { |
|
|
2423 |
return CSS_PROPERTY_NOT_SET; |
|
|
2424 |
} |
|
|
2425 |
|
|
|
2426 |
if (!dom_string_caseless_lwc_isequal(node_name, |
|
|
2427 |
corestring_lwc_table)) { |
|
|
2428 |
dom_string_unref(node_name); |
|
|
2429 |
return CSS_PROPERTY_NOT_SET; |
|
|
2430 |
} |
|
|
2431 |
|
|
|
2432 |
dom_string_unref(node_name); |
|
|
2433 |
|
|
|
2434 |
err = dom_element_get_attribute(node, |
|
|
2435 |
corestring_dom_cellspacing, &cellspacing); |
|
|
2436 |
if ((err != DOM_NO_ERR) || (cellspacing == NULL)) { |
|
|
2437 |
return CSS_PROPERTY_NOT_SET; |
|
|
2438 |
} |
|
|
2439 |
|
|
|
2440 |
|
|
|
2441 |
if (parse_dimension((const char *)dom_string_data(cellspacing), |
|
|
2442 |
false, |
|
|
2443 |
&hint->data.position.h.value, |
|
|
2444 |
&hint->data.position.h.unit)) { |
|
|
2445 |
|
|
|
2446 |
hint->data.position.v = hint->data.position.h; |
|
|
2447 |
hint->status = CSS_BORDER_SPACING_SET; |
|
|
2448 |
|
|
|
2449 |
dom_string_unref(cellspacing); |
|
|
2450 |
return CSS_OK; |
|
|
2451 |
} |
|
|
2452 |
|
|
|
2453 |
dom_string_unref(cellspacing); |
|
|
2454 |
return CSS_PROPERTY_NOT_SET; |
|
|
2455 |
} |
|
|
2456 |
|
|
|
2457 |
static css_error |
|
|
2458 |
node_presentational_hint_width(nscss_select_ctx *ctx, |
|
|
2459 |
dom_node *node, |
|
|
2460 |
css_hint *hint) |
|
|
2461 |
{ |
|
|
2462 |
dom_string *name; |
|
|
2463 |
dom_string *width = NULL; |
|
|
2464 |
dom_exception err; |
|
|
2465 |
bool textarea = false; |
|
|
2466 |
bool input = false; |
|
|
2467 |
|
|
|
2468 |
err = dom_node_get_node_name(node, &name); |
|
|
2469 |
if (err != DOM_NO_ERR) |
|
|
2470 |
return CSS_PROPERTY_NOT_SET; |
|
|
2471 |
|
|
|
2472 |
if (dom_string_caseless_lwc_isequal(name, corestring_lwc_hr) || |
|
|
2473 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_iframe) || |
|
|
2474 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_img) || |
|
|
2475 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_object) || |
|
|
2476 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_table) || |
|
|
2477 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_td) || |
|
|
2478 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_th) || |
|
|
2479 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_applet)) { |
|
|
2480 |
err = dom_element_get_attribute(node, |
|
|
2481 |
corestring_dom_width, &width); |
|
|
2482 |
} else if (dom_string_caseless_lwc_isequal(name, |
|
|
2483 |
corestring_lwc_textarea)) { |
|
|
2484 |
textarea = true; |
|
|
2485 |
err = dom_element_get_attribute(node, |
|
|
2486 |
corestring_dom_cols, &width); |
|
|
2487 |
} else if (dom_string_caseless_lwc_isequal(name, |
|
|
2488 |
corestring_lwc_input)) { |
|
|
2489 |
input = true; |
|
|
2490 |
err = dom_element_get_attribute(node, |
|
|
2491 |
corestring_dom_size, &width); |
|
|
2492 |
} |
|
|
2493 |
|
|
|
2494 |
dom_string_unref(name); |
|
|
2495 |
|
|
|
2496 |
if ((err != DOM_NO_ERR) || (width == NULL)) { |
|
|
2497 |
return CSS_PROPERTY_NOT_SET; |
|
|
2498 |
} |
|
|
2499 |
|
|
|
2500 |
if (parse_dimension((const char *)dom_string_data(width), |
|
|
2501 |
false, |
|
|
2502 |
&hint->data.length.value, |
|
|
2503 |
&hint->data.length.unit)) { |
|
|
2504 |
hint->status = CSS_WIDTH_SET; |
|
|
2505 |
dom_string_unref(width); |
|
|
2506 |
|
|
|
2507 |
if (textarea) { |
|
|
2508 |
hint->data.length.unit = CSS_UNIT_EX; |
|
|
2509 |
} |
|
|
2510 |
|
|
|
2511 |
if (input) { |
|
|
2512 |
err = dom_element_get_attribute(node, |
|
|
2513 |
corestring_dom_type, &width); |
|
|
2514 |
if (err != DOM_NO_ERR) { |
|
|
2515 |
return CSS_PROPERTY_NOT_SET; |
|
|
2516 |
} |
|
|
2517 |
|
|
|
2518 |
if ((width == NULL) || |
|
|
2519 |
dom_string_caseless_lwc_isequal(width, |
|
|
2520 |
corestring_lwc_text) || |
|
|
2521 |
dom_string_caseless_lwc_isequal(width, |
|
|
2522 |
corestring_lwc_search) || |
|
|
2523 |
dom_string_caseless_lwc_isequal(width, |
|
|
2524 |
corestring_lwc_file) || |
|
|
2525 |
dom_string_caseless_lwc_isequal(width, |
|
|
2526 |
corestring_lwc_password)) { |
|
|
2527 |
hint->data.length.unit = CSS_UNIT_EX; |
|
|
2528 |
} |
|
|
2529 |
dom_string_unref(width); |
|
|
2530 |
} |
|
|
2531 |
|
|
|
2532 |
return CSS_OK; |
|
|
2533 |
} |
|
|
2534 |
|
|
|
2535 |
dom_string_unref(width); |
|
|
2536 |
return CSS_PROPERTY_NOT_SET; |
|
|
2537 |
|
|
|
2538 |
} |
|
|
2539 |
|
|
|
2540 |
static css_error |
|
|
2541 |
node_presentational_hint_height(nscss_select_ctx *ctx, |
|
|
2542 |
dom_node *node, |
|
|
2543 |
css_hint *hint) |
|
|
2544 |
{ |
|
|
2545 |
dom_string *name; |
|
|
2546 |
dom_string *height = NULL; |
|
|
2547 |
dom_exception err; |
|
|
2548 |
bool textarea = false; |
|
|
2549 |
|
|
|
2550 |
err = dom_node_get_node_name(node, &name); |
|
|
2551 |
if (err != DOM_NO_ERR) |
|
|
2552 |
return CSS_PROPERTY_NOT_SET; |
|
|
2553 |
|
|
|
2554 |
if (dom_string_caseless_lwc_isequal(name, corestring_lwc_iframe) || |
|
|
2555 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_td) || |
|
|
2556 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_th) || |
|
|
2557 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_tr) || |
|
|
2558 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_img) || |
|
|
2559 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_object) || |
|
|
2560 |
dom_string_caseless_lwc_isequal(name, corestring_lwc_applet)) { |
|
|
2561 |
err = dom_element_get_attribute(node, |
|
|
2562 |
corestring_dom_height, &height); |
|
|
2563 |
} else if (dom_string_caseless_lwc_isequal(name, |
|
|
2564 |
corestring_lwc_textarea)) { |
|
|
2565 |
textarea = true; |
|
|
2566 |
err = dom_element_get_attribute(node, |
|
|
2567 |
corestring_dom_rows, &height); |
|
|
2568 |
} |
|
|
2569 |
|
|
|
2570 |
dom_string_unref(name); |
|
|
2571 |
|
|
|
2572 |
if ((err != DOM_NO_ERR) || (height == NULL)) { |
|
|
2573 |
return CSS_PROPERTY_NOT_SET; |
|
|
2574 |
} |
|
|
2575 |
|
|
|
2576 |
if (parse_dimension((const char *)dom_string_data(height), |
|
|
2577 |
false, |
|
|
2578 |
&hint->data.length.value, |
|
|
2579 |
&hint->data.length.unit)) { |
|
|
2580 |
hint->status = CSS_HEIGHT_SET; |
|
|
2581 |
|
|
|
2582 |
if (textarea) { |
|
|
2583 |
hint->data.length.unit = CSS_UNIT_EM; |
|
|
2584 |
} |
|
|
2585 |
|
|
|
2586 |
dom_string_unref(height); |
|
|
2587 |
return CSS_OK; |
|
|
2588 |
} |
|
|
2589 |
|
|
|
2590 |
dom_string_unref(height); |
|
|
2591 |
return CSS_PROPERTY_NOT_SET; |
|
|
2592 |
} |
|
|
2593 |
|
|
|
2594 |
static css_error |
|
|
2595 |
node_presentational_hint_font_size(nscss_select_ctx *ctx, |
|
|
2596 |
dom_node *node, |
|
|
2597 |
css_hint *hint) |
|
|
2598 |
{ |
|
|
2599 |
dom_exception err; |
|
|
2600 |
dom_string *node_name = NULL; |
|
|
2601 |
dom_string *size; |
|
|
2602 |
|
|
|
2603 |
err = dom_node_get_node_name(node, &node_name); |
|
|
2604 |
if ((err != DOM_NO_ERR) || (node_name == NULL)) { |
|
|
2605 |
return CSS_NOMEM; |
|
|
2606 |
} |
|
|
2607 |
|
|
|
2608 |
if (!dom_string_caseless_lwc_isequal(node_name, |
|
|
2609 |
corestring_lwc_font)) { |
|
|
2610 |
dom_string_unref(node_name); |
|
|
2611 |
return CSS_PROPERTY_NOT_SET; |
|
|
2612 |
} |
|
|
2613 |
|
|
|
2614 |
dom_string_unref(node_name); |
|
|
2615 |
|
|
|
2616 |
err = dom_element_get_attribute(node, corestring_dom_size, &size); |
|
|
2617 |
if ((err != DOM_NO_ERR) || (size == NULL)) { |
|
|
2618 |
return CSS_PROPERTY_NOT_SET; |
|
|
2619 |
} |
|
|
2620 |
|
|
|
2621 |
if (parse_font_size((const char *)dom_string_data(size), |
|
|
2622 |
&hint->status, |
|
|
2623 |
&hint->data.length.value, |
|
|
2624 |
&hint->data.length.unit)) { |
|
|
2625 |
dom_string_unref(size); |
|
|
2626 |
return CSS_OK; |
|
|
2627 |
} |
|
|
2628 |
|
|
|
2629 |
dom_string_unref(size); |
|
|
2630 |
return CSS_PROPERTY_NOT_SET; |
|
|
2631 |
} |
|
|
2632 |
|
|
|
2633 |
static css_error |
|
|
2634 |
node_presentational_hint_float(nscss_select_ctx *ctx, |
|
|
2635 |
dom_node *node, |
|
|
2636 |
css_hint *hint) |
|
|
2637 |
{ |
|
|
2638 |
dom_exception err; |
|
|
2639 |
dom_string *node_name = NULL; |
|
|
2640 |
dom_string *align; |
|
|
2641 |
|
|
|
2642 |
err = dom_node_get_node_name(node, &node_name); |
|
|
2643 |
if ((err != DOM_NO_ERR) || (node_name == NULL)) { |
|
|
2644 |
return CSS_NOMEM; |
|
|
2645 |
} |
|
|
2646 |
|
|
|
2647 |
/** \todo input[type=image][align=*] - $11.3.3 */ |
|
|
2648 |
if (!dom_string_caseless_lwc_isequal(node_name, |
|
|
2649 |
corestring_lwc_applet) && |
|
|
2650 |
!dom_string_caseless_lwc_isequal(node_name, |
|
|
2651 |
corestring_lwc_embed) && |
|
|
2652 |
!dom_string_caseless_lwc_isequal(node_name, |
|
|
2653 |
corestring_lwc_iframe) && |
|
|
2654 |
!dom_string_caseless_lwc_isequal(node_name, |
|
|
2655 |
corestring_lwc_img) && |
|
|
2656 |
!dom_string_caseless_lwc_isequal(node_name, |
|
|
2657 |
corestring_lwc_object)) { |
|
|
2658 |
dom_string_unref(node_name); |
|
|
2659 |
return CSS_PROPERTY_NOT_SET; |
|
|
2660 |
} |
|
|
2661 |
|
|
|
2662 |
dom_string_unref(node_name); |
|
|
2663 |
|
|
|
2664 |
err = dom_element_get_attribute(node, corestring_dom_align, &align); |
|
|
2665 |
if ((err != DOM_NO_ERR) || (align == NULL)) { |
|
|
2666 |
return CSS_PROPERTY_NOT_SET; |
|
|
2667 |
} |
|
|
2668 |
|
|
|
2669 |
if (dom_string_caseless_lwc_isequal(align, |
|
|
2670 |
corestring_lwc_left)) { |
|
|
2671 |
hint->status = CSS_FLOAT_LEFT; |
|
|
2672 |
dom_string_unref(align); |
|
|
2673 |
return CSS_OK; |
|
|
2674 |
} else if (dom_string_caseless_lwc_isequal(align, |
|
|
2675 |
corestring_lwc_right)) { |
|
|
2676 |
hint->status = CSS_FLOAT_RIGHT; |
|
|
2677 |
dom_string_unref(align); |
|
|
2678 |
return CSS_OK; |
|
|
2679 |
} |
|
|
2680 |
|
|
|
2681 |
dom_string_unref(align); |
|
|
2682 |
|
|
|
2683 |
return CSS_PROPERTY_NOT_SET; |
|
|
2684 |
} |
|
|
2685 |
|
|
|
2686 |
static css_error |
|
|
2687 |
node_presentational_hint_color(nscss_select_ctx *ctx, |
|
|
2688 |
dom_node *node, |
|
|
2689 |
css_hint *hint) |
|
|
2690 |
{ |
|
|
2691 |
css_error error; |
|
|
2692 |
dom_exception err; |
|
|
2693 |
dom_string *node_name = NULL; |
|
|
2694 |
dom_string *color; |
|
|
2695 |
|
|
|
2696 |
err = dom_node_get_node_name(node, &node_name); |
|
|
2697 |
if ((err != DOM_NO_ERR) || (node_name == NULL)) { |
|
|
2698 |
return CSS_NOMEM; |
|
|
2699 |
} |
|
|
2700 |
|
|
|
2701 |
if (dom_string_caseless_lwc_isequal(node_name, corestring_lwc_a)) { |
|
|
2702 |
/* find body node */ |
|
|
2703 |
css_qname qs; |
|
|
2704 |
dom_node *bodynode = NULL; |
|
|
2705 |
bool is_visited; |
|
|
2706 |
|
|
|
2707 |
qs.ns = NULL; |
|
|
2708 |
qs.name = lwc_string_ref(corestring_lwc_body); |
|
|
2709 |
if (named_ancestor_node(ctx, node, &qs, |
|
|
2710 |
(void *)&bodynode) != CSS_OK) { |
|
|
2711 |
/* Didn't find, or had error */ |
|
|
2712 |
lwc_string_unref(qs.name); |
|
|
2713 |
dom_string_unref(node_name); |
|
|
2714 |
return CSS_PROPERTY_NOT_SET; |
|
|
2715 |
} |
|
|
2716 |
|
|
|
2717 |
lwc_string_unref(qs.name); |
|
|
2718 |
|
|
|
2719 |
/* deal with missing body ancestor */ |
|
|
2720 |
if (bodynode == NULL) { |
|
|
2721 |
dom_string_unref(node_name); |
|
|
2722 |
return CSS_BADPARM; |
|
|
2723 |
} |
|
|
2724 |
|
|
|
2725 |
error = node_is_visited(ctx, node, &is_visited); |
|
|
2726 |
if (error != CSS_OK) |
|
|
2727 |
return error; |
|
|
2728 |
|
|
|
2729 |
if (is_visited) { |
|
|
2730 |
err = dom_element_get_attribute(bodynode, |
|
|
2731 |
corestring_dom_vlink, &color); |
|
|
2732 |
if ((err != DOM_NO_ERR) || (color == NULL)) { |
|
|
2733 |
dom_string_unref(node_name); |
|
|
2734 |
return CSS_PROPERTY_NOT_SET; |
|
|
2735 |
} |
|
|
2736 |
} else { |
|
|
2737 |
err = dom_element_get_attribute(bodynode, |
|
|
2738 |
corestring_dom_link, &color); |
|
|
2739 |
if ((err != DOM_NO_ERR) || (color == NULL)) { |
|
|
2740 |
dom_string_unref(node_name); |
|
|
2741 |
return CSS_PROPERTY_NOT_SET; |
|
|
2742 |
} |
|
|
2743 |
} |
|
|
2744 |
} else if (dom_string_caseless_lwc_isequal(node_name, |
|
|
2745 |
corestring_lwc_body)) { |
|
|
2746 |
err = dom_element_get_attribute(node, |
|
|
2747 |
corestring_dom_text, &color); |
|
|
2748 |
if ((err != DOM_NO_ERR) || (color == NULL)) { |
|
|
2749 |
dom_string_unref(node_name); |
|
|
2750 |
return CSS_PROPERTY_NOT_SET; |
|
|
2751 |
} |
|
|
2752 |
} else { |
|
|
2753 |
err = dom_element_get_attribute(node, |
|
|
2754 |
corestring_dom_color, &color); |
|
|
2755 |
if ((err != DOM_NO_ERR) || (color == NULL)) { |
|
|
2756 |
dom_string_unref(node_name); |
|
|
2757 |
return CSS_PROPERTY_NOT_SET; |
|
|
2758 |
} |
|
|
2759 |
} |
|
|
2760 |
|
|
|
2761 |
if (!nscss_parse_colour((const char *)dom_string_data(color), |
|
|
2762 |
&hint->data.color)) { |
|
|
2763 |
dom_string_unref(node_name); |
|
|
2764 |
return CSS_PROPERTY_NOT_SET; |
|
|
2765 |
} |
|
|
2766 |
|
|
|
2767 |
hint->status = CSS_COLOR_COLOR; |
|
|
2768 |
|
|
|
2769 |
dom_string_unref(node_name); |
|
|
2770 |
|
|
|
2771 |
return CSS_OK; |
|
|
2772 |
} |
|
|
2773 |
|
|
|
2774 |
static css_error |
|
|
2775 |
node_presentational_hint_caption_side(nscss_select_ctx *ctx, |
|
|
2776 |
dom_node *node, |
|
|
2777 |
css_hint *hint) |
|
|
2778 |
{ |
|
|
2779 |
dom_exception err; |
|
|
2780 |
dom_string *node_name = NULL; |
|
|
2781 |
dom_string *align = NULL; |
|
|
2782 |
|
|
|
2783 |
err = dom_node_get_node_name(node, &node_name); |
|
|
2784 |
if ((err != DOM_NO_ERR) || (node_name == NULL)) { |
|
|
2785 |
return CSS_PROPERTY_NOT_SET; |
|
|
2786 |
} |
|
|
2787 |
|
|
|
2788 |
if (!dom_string_caseless_lwc_isequal(node_name, |
|
|
2789 |
corestring_lwc_caption)) { |
|
|
2790 |
dom_string_unref(node_name); |
|
|
2791 |
return CSS_PROPERTY_NOT_SET; |
|
|
2792 |
} |
|
|
2793 |
|
|
|
2794 |
dom_string_unref(node_name); |
|
|
2795 |
|
|
|
2796 |
err = dom_element_get_attribute(node, corestring_dom_align, &align); |
|
|
2797 |
if ((err != DOM_NO_ERR) || (align == NULL)) { |
|
|
2798 |
return CSS_PROPERTY_NOT_SET; |
|
|
2799 |
} |
|
|
2800 |
|
|
|
2801 |
if (dom_string_caseless_lwc_isequal(align, corestring_lwc_bottom)) { |
|
|
2802 |
hint->status = CSS_CAPTION_SIDE_BOTTOM; |
|
|
2803 |
dom_string_unref(align); |
|
|
2804 |
return CSS_OK; |
|
|
2805 |
} |
|
|
2806 |
|
|
|
2807 |
dom_string_unref(align); |
|
|
2808 |
|
|
|
2809 |
return CSS_PROPERTY_NOT_SET; |
|
|
2810 |
} |
|
|
2811 |
|
|
|
2812 |
static css_error |
|
|
2813 |
node_presentational_hint_background_color(nscss_select_ctx *ctx, |
|
|
2814 |
dom_node *node, |
|
|
2815 |
css_hint *hint) |
|
|
2816 |
{ |
|
|
2817 |
dom_exception err; |
|
|
2818 |
dom_string *bgcolor; |
|
|
2819 |
|
|
|
2820 |
err = dom_element_get_attribute(node, |
|
|
2821 |
corestring_dom_bgcolor, &bgcolor); |
|
|
2822 |
if ((err != DOM_NO_ERR) || (bgcolor == NULL)) { |
|
|
2823 |
return CSS_PROPERTY_NOT_SET; |
|
|
2824 |
} |
|
|
2825 |
|
|
|
2826 |
if (nscss_parse_colour((const char *)dom_string_data(bgcolor), |
|
|
2827 |
&hint->data.color)) { |
|
|
2828 |
hint->status = CSS_BACKGROUND_COLOR_COLOR; |
|
|
2829 |
dom_string_unref(bgcolor); |
|
|
2830 |
return CSS_OK; |
|
|
2831 |
} |
|
|
2832 |
|
|
|
2833 |
dom_string_unref(bgcolor); |
|
|
2834 |
|
|
|
2835 |
return CSS_PROPERTY_NOT_SET; |
|
|
2836 |
} |
|
|
2837 |
|
|
|
2838 |
static css_error |
|
|
2839 |
node_presentational_hint_background_image(nscss_select_ctx *ctx, |
|
|
2840 |
dom_node *node, |
|
|
2841 |
css_hint *hint) |
|
|
2842 |
{ |
|
|
2843 |
dom_exception err; |
|
|
2844 |
dom_string *atr_val; |
|
|
2845 |
nserror error; |
|
|
2846 |
nsurl *url; |
|
|
2847 |
lwc_string *iurl; |
|
|
2848 |
lwc_error lerror; |
|
|
2849 |
|
|
|
2850 |
err = dom_element_get_attribute(node, |
|
|
2851 |
corestring_dom_background, &atr_val); |
|
|
2852 |
if ((err != DOM_NO_ERR) || (atr_val == NULL)) { |
|
|
2853 |
return CSS_PROPERTY_NOT_SET; |
|
|
2854 |
} |
|
|
2855 |
|
|
|
2856 |
error = nsurl_join(ctx->base_url, |
|
|
2857 |
(const char *)dom_string_data(atr_val), &url); |
|
|
2858 |
|
|
|
2859 |
dom_string_unref(atr_val); |
|
|
2860 |
|
|
|
2861 |
if (error != NSERROR_OK) { |
|
|
2862 |
return CSS_NOMEM; |
|
|
2863 |
} |
|
|
2864 |
|
|
|
2865 |
lerror = lwc_intern_string(nsurl_access(url), |
|
|
2866 |
nsurl_length(url), &iurl); |
|
|
2867 |
|
|
|
2868 |
nsurl_unref(url); |
|
|
2869 |
|
|
|
2870 |
if (lerror == lwc_error_oom) { |
|
|
2871 |
return CSS_NOMEM; |
|
|
2872 |
} |
|
|
2873 |
|
|
|
2874 |
if (lerror == lwc_error_ok) { |
|
|
2875 |
hint->data.string = iurl; |
|
|
2876 |
hint->status = CSS_BACKGROUND_IMAGE_IMAGE; |
|
|
2877 |
return CSS_OK; |
|
|
2878 |
} |
|
|
2879 |
|
|
|
2880 |
return CSS_PROPERTY_NOT_SET; |
|
|
2881 |
} |
|
|
2882 |
|
|
|
2883 |
/** |
|
|
2884 |
* Callback to retrieve presentational hints for a node |
|
|
2885 |
* |
|
|
2886 |
* \param pw HTML document |
|
|
2887 |
* \param node DOM node |
|
|
2888 |
* \param property CSS property to retrieve |
|
|
2889 |
* \param hint Pointer to hint object to populate |
|
|
2890 |
* \return CSS_OK on success, |
|
|
2891 |
* CSS_PROPERTY_NOT_SET if there is no hint for the requested property, |
|
|
2892 |
* CSS_NOMEM on memory exhaustion. |
|
|
2893 |
*/ |
|
|
2894 |
css_error node_presentational_hint(void *pw, void *node, |
|
|
2895 |
uint32_t property, css_hint *hint) |
|
|
2896 |
{ |
|
|
2897 |
|
|
|
2898 |
switch (property) { |
|
|
2899 |
case CSS_PROP_BACKGROUND_IMAGE: |
|
|
2900 |
return node_presentational_hint_background_image(pw, node, hint); |
|
|
2901 |
|
|
|
2902 |
case CSS_PROP_BACKGROUND_COLOR: |
|
|
2903 |
return node_presentational_hint_background_color(pw, node, hint); |
|
|
2904 |
case CSS_PROP_CAPTION_SIDE: |
|
|
2905 |
return node_presentational_hint_caption_side(pw, node, hint); |
|
|
2906 |
|
|
|
2907 |
case CSS_PROP_COLOR: |
|
|
2908 |
return node_presentational_hint_color(pw, node, hint); |
|
|
2909 |
|
|
|
2910 |
case CSS_PROP_FLOAT: |
|
|
2911 |
return node_presentational_hint_float(pw, node, hint); |
|
|
2912 |
|
|
|
2913 |
case CSS_PROP_FONT_SIZE: |
|
|
2914 |
return node_presentational_hint_font_size(pw, node, hint); |
|
|
2915 |
|
|
|
2916 |
case CSS_PROP_HEIGHT: |
|
|
2917 |
return node_presentational_hint_height(pw, node, hint); |
|
|
2918 |
|
|
|
2919 |
case CSS_PROP_WIDTH: |
|
|
2920 |
return node_presentational_hint_width(pw, node, hint); |
|
|
2921 |
|
|
|
2922 |
case CSS_PROP_BORDER_SPACING: |
|
|
2923 |
return node_presentational_hint_border_spacing(pw, node, hint); |
|
|
2924 |
|
|
|
2925 |
case CSS_PROP_BORDER_TOP_COLOR : |
|
|
2926 |
case CSS_PROP_BORDER_RIGHT_COLOR : |
|
|
2927 |
case CSS_PROP_BORDER_BOTTOM_COLOR : |
|
|
2928 |
case CSS_PROP_BORDER_LEFT_COLOR : |
|
|
2929 |
return node_presentational_hint_border_trbl_color(pw, node, hint); |
|
|
2930 |
|
|
|
2931 |
case CSS_PROP_BORDER_TOP_STYLE : |
|
|
2932 |
case CSS_PROP_BORDER_RIGHT_STYLE : |
|
|
2933 |
case CSS_PROP_BORDER_BOTTOM_STYLE : |
|
|
2934 |
case CSS_PROP_BORDER_LEFT_STYLE : |
|
|
2935 |
return node_presentational_hint_border_trbl_style(pw, node, hint); |
|
|
2936 |
|
|
|
2937 |
case CSS_PROP_BORDER_TOP_WIDTH : |
|
|
2938 |
case CSS_PROP_BORDER_RIGHT_WIDTH : |
|
|
2939 |
case CSS_PROP_BORDER_BOTTOM_WIDTH : |
|
|
2940 |
case CSS_PROP_BORDER_LEFT_WIDTH : |
|
|
2941 |
return node_presentational_hint_border_trbl_width(pw, node, hint); |
|
|
2942 |
|
|
|
2943 |
case CSS_PROP_MARGIN_TOP : |
|
|
2944 |
case CSS_PROP_MARGIN_BOTTOM : |
|
|
2945 |
return node_presentational_hint_margin_tb(pw, node, hint); |
|
|
2946 |
|
|
|
2947 |
case CSS_PROP_MARGIN_RIGHT: |
|
|
2948 |
case CSS_PROP_MARGIN_LEFT: |
|
|
2949 |
return node_presentational_hint_margin_rl(pw, node, hint, property); |
|
|
2950 |
|
|
|
2951 |
case CSS_PROP_PADDING_TOP: |
|
|
2952 |
case CSS_PROP_PADDING_RIGHT : |
|
|
2953 |
case CSS_PROP_PADDING_BOTTOM : |
|
|
2954 |
case CSS_PROP_PADDING_LEFT: |
|
|
2955 |
return node_presentational_hint_padding_trbl(pw, node, hint); |
|
|
2956 |
|
|
|
2957 |
case CSS_PROP_TEXT_ALIGN: |
|
|
2958 |
return node_presentational_hint_text_align(pw, node, hint); |
|
|
2959 |
|
|
|
2960 |
case CSS_PROP_VERTICAL_ALIGN: |
|
|
2961 |
return node_presentational_hint_vertical_align(pw, node, hint); |
|
|
2962 |
} |
|
|
2963 |
|
|
|
2964 |
return CSS_PROPERTY_NOT_SET; |
|
|
2965 |
} |
|
|
2966 |
|
|
|
2967 |
/** |
|
|
2968 |
* Callback to retrieve the User-Agent defaults for a CSS property. |
|
|
2969 |
* |
|
|
2970 |
* \param pw HTML document |
|
|
2971 |
* \param property Property to retrieve defaults for |
|
|
2972 |
* \param hint Pointer to hint object to populate |
|
|
2973 |
* \return CSS_OK on success, |
|
|
2974 |
* CSS_INVALID if the property should not have a user-agent default. |
|
|
2975 |
*/ |
|
|
2976 |
css_error ua_default_for_property(void *pw, uint32_t property, css_hint *hint) |
|
|
2977 |
{ |
|
|
2978 |
if (property == CSS_PROP_COLOR) { |
|
|
2979 |
hint->data.color = 0xff000000; |
|
|
2980 |
hint->status = CSS_COLOR_COLOR; |
|
|
2981 |
} else if (property == CSS_PROP_FONT_FAMILY) { |
|
|
2982 |
hint->data.strings = NULL; |
|
|
2983 |
switch (nsoption_int(font_default)) { |
|
|
2984 |
case PLOT_FONT_FAMILY_SANS_SERIF: |
|
|
2985 |
hint->status = CSS_FONT_FAMILY_SANS_SERIF; |
|
|
2986 |
break; |
|
|
2987 |
case PLOT_FONT_FAMILY_SERIF: |
|
|
2988 |
hint->status = CSS_FONT_FAMILY_SERIF; |
|
|
2989 |
break; |
|
|
2990 |
case PLOT_FONT_FAMILY_MONOSPACE: |
|
|
2991 |
hint->status = CSS_FONT_FAMILY_MONOSPACE; |
|
|
2992 |
break; |
|
|
2993 |
case PLOT_FONT_FAMILY_CURSIVE: |
|
|
2994 |
hint->status = CSS_FONT_FAMILY_CURSIVE; |
|
|
2995 |
break; |
|
|
2996 |
case PLOT_FONT_FAMILY_FANTASY: |
|
|
2997 |
hint->status = CSS_FONT_FAMILY_FANTASY; |
|
|
2998 |
break; |
|
|
2999 |
} |
|
|
3000 |
} else if (property == CSS_PROP_QUOTES) { |
|
|
3001 |
/** \todo Not exactly useful :) */ |
|
|
3002 |
hint->data.strings = NULL; |
|
|
3003 |
hint->status = CSS_QUOTES_NONE; |
|
|
3004 |
} else if (property == CSS_PROP_VOICE_FAMILY) { |
|
|
3005 |
/** \todo Fix this when we have voice-family done */ |
|
|
3006 |
hint->data.strings = NULL; |
|
|
3007 |
hint->status = 0; |
|
|
3008 |
} else { |
|
|
3009 |
return CSS_INVALID; |
|
|
3010 |
} |
|
|
3011 |
|
|
|
3012 |
return CSS_OK; |
|
|
3013 |
} |
|
|
3014 |
|
|
|
3015 |
/** |
|
|
3016 |
* Mapping of colour name to CSS color |
|
|
3017 |
*/ |
|
|
3018 |
struct colour_map { |
|
|
3019 |
const char *name; |
|
|
3020 |
css_color color; |
|
|
3021 |
}; |
|
|
3022 |
|
|
|
3023 |
/** |
|
|
3024 |
* Name comparator for named colour matching |
|
|
3025 |
* |
|
|
3026 |
* \param a Name to match |
|
|
3027 |
* \param b Colour map entry to consider |
|
|
3028 |
* \return 0 on match, |
|
|
3029 |
* < 0 if a < b, |
|
|
3030 |
* > 0 if b > a. |
|
|
3031 |
*/ |
|
|
3032 |
int cmp_colour_name(const void *a, const void *b) |
|
|
3033 |
{ |
|
|
3034 |
const char *aa = a; |
|
|
3035 |
const struct colour_map *bb = b; |
|
|
3036 |
|
|
|
3037 |
return strcasecmp(aa, bb->name); |
|
|
3038 |
} |
|
|
3039 |
|
|
|
3040 |
/** |
|
|
3041 |
* Parse a named colour |
|
|
3042 |
* |
|
|
3043 |
* \param name Name to parse |
|
|
3044 |
* \param result Pointer to location to receive css_color |
|
|
3045 |
* \return true on success, false on invalid input |
|
|
3046 |
*/ |
|
|
3047 |
bool parse_named_colour(const char *name, css_color *result) |
|
|
3048 |
{ |
|
|
3049 |
static const struct colour_map named_colours[] = { |
|
|
3050 |
{ "aliceblue", 0xfff0f8ff }, |
|
|
3051 |
{ "antiquewhite", 0xfffaebd7 }, |
|
|
3052 |
{ "aqua", 0xff00ffff }, |
|
|
3053 |
{ "aquamarine", 0xff7fffd4 }, |
|
|
3054 |
{ "azure", 0xfff0ffff }, |
|
|
3055 |
{ "beige", 0xfff5f5dc }, |
|
|
3056 |
{ "bisque", 0xffffe4c4 }, |
|
|
3057 |
{ "black", 0xff000000 }, |
|
|
3058 |
{ "blanchedalmond", 0xffffebcd }, |
|
|
3059 |
{ "blue", 0xff0000ff }, |
|
|
3060 |
{ "blueviolet", 0xff8a2be2 }, |
|
|
3061 |
{ "brown", 0xffa52a2a }, |
|
|
3062 |
{ "burlywood", 0xffdeb887 }, |
|
|
3063 |
{ "cadetblue", 0xff5f9ea0 }, |
|
|
3064 |
{ "chartreuse", 0xff7fff00 }, |
|
|
3065 |
{ "chocolate", 0xffd2691e }, |
|
|
3066 |
{ "coral", 0xffff7f50 }, |
|
|
3067 |
{ "cornflowerblue", 0xff6495ed }, |
|
|
3068 |
{ "cornsilk", 0xfffff8dc }, |
|
|
3069 |
{ "crimson", 0xffdc143c }, |
|
|
3070 |
{ "cyan", 0xff00ffff }, |
|
|
3071 |
{ "darkblue", 0xff00008b }, |
|
|
3072 |
{ "darkcyan", 0xff008b8b }, |
|
|
3073 |
{ "darkgoldenrod", 0xffb8860b }, |
|
|
3074 |
{ "darkgray", 0xffa9a9a9 }, |
|
|
3075 |
{ "darkgreen", 0xff006400 }, |
|
|
3076 |
{ "darkgrey", 0xffa9a9a9 }, |
|
|
3077 |
{ "darkkhaki", 0xffbdb76b }, |
|
|
3078 |
{ "darkmagenta", 0xff8b008b }, |
|
|
3079 |
{ "darkolivegreen", 0xff556b2f }, |
|
|
3080 |
{ "darkorange", 0xffff8c00 }, |
|
|
3081 |
{ "darkorchid", 0xff9932cc }, |
|
|
3082 |
{ "darkred", 0xff8b0000 }, |
|
|
3083 |
{ "darksalmon", 0xffe9967a }, |
|
|
3084 |
{ "darkseagreen", 0xff8fbc8f }, |
|
|
3085 |
{ "darkslateblue", 0xff483d8b }, |
|
|
3086 |
{ "darkslategray", 0xff2f4f4f }, |
|
|
3087 |
{ "darkslategrey", 0xff2f4f4f }, |
|
|
3088 |
{ "darkturquoise", 0xff00ced1 }, |
|
|
3089 |
{ "darkviolet", 0xff9400d3 }, |
|
|
3090 |
{ "deeppink", 0xffff1493 }, |
|
|
3091 |
{ "deepskyblue", 0xff00bfff }, |
|
|
3092 |
{ "dimgray", 0xff696969 }, |
|
|
3093 |
{ "dimgrey", 0xff696969 }, |
|
|
3094 |
{ "dodgerblue", 0xff1e90ff }, |
|
|
3095 |
{ "feldspar", 0xffd19275 }, |
|
|
3096 |
{ "firebrick", 0xffb22222 }, |
|
|
3097 |
{ "floralwhite", 0xfffffaf0 }, |
|
|
3098 |
{ "forestgreen", 0xff228b22 }, |
|
|
3099 |
{ "fuchsia", 0xffff00ff }, |
|
|
3100 |
{ "gainsboro", 0xffdcdcdc }, |
|
|
3101 |
{ "ghostwhite", 0xfff8f8ff }, |
|
|
3102 |
{ "gold", 0xffffd700 }, |
|
|
3103 |
{ "goldenrod", 0xffdaa520 }, |
|
|
3104 |
{ "gray", 0xff808080 }, |
|
|
3105 |
{ "green", 0xff008000 }, |
|
|
3106 |
{ "greenyellow", 0xffadff2f }, |
|
|
3107 |
{ "grey", 0xff808080 }, |
|
|
3108 |
{ "honeydew", 0xfff0fff0 }, |
|
|
3109 |
{ "hotpink", 0xffff69b4 }, |
|
|
3110 |
{ "indianred", 0xffcd5c5c }, |
|
|
3111 |
{ "indigo", 0xff4b0082 }, |
|
|
3112 |
{ "ivory", 0xfffffff0 }, |
|
|
3113 |
{ "khaki", 0xfff0e68c }, |
|
|
3114 |
{ "lavender", 0xffe6e6fa }, |
|
|
3115 |
{ "lavenderblush", 0xfffff0f5 }, |
|
|
3116 |
{ "lawngreen", 0xff7cfc00 }, |
|
|
3117 |
{ "lemonchiffon", 0xfffffacd }, |
|
|
3118 |
{ "lightblue", 0xffadd8e6 }, |
|
|
3119 |
{ "lightcoral", 0xfff08080 }, |
|
|
3120 |
{ "lightcyan", 0xffe0ffff }, |
|
|
3121 |
{ "lightgoldenrodyellow", 0xfffafad2 }, |
|
|
3122 |
{ "lightgray", 0xffd3d3d3 }, |
|
|
3123 |
{ "lightgreen", 0xff90ee90 }, |
|
|
3124 |
{ "lightgrey", 0xffd3d3d3 }, |
|
|
3125 |
{ "lightpink", 0xffffb6c1 }, |
|
|
3126 |
{ "lightsalmon", 0xffffa07a }, |
|
|
3127 |
{ "lightseagreen", 0xff20b2aa }, |
|
|
3128 |
{ "lightskyblue", 0xff87cefa }, |
|
|
3129 |
{ "lightslateblue", 0xff8470ff }, |
|
|
3130 |
{ "lightslategray", 0xff778899 }, |
|
|
3131 |
{ "lightslategrey", 0xff778899 }, |
|
|
3132 |
{ "lightsteelblue", 0xffb0c4de }, |
|
|
3133 |
{ "lightyellow", 0xffffffe0 }, |
|
|
3134 |
{ "lime", 0xff00ff00 }, |
|
|
3135 |
{ "limegreen", 0xff32cd32 }, |
|
|
3136 |
{ "linen", 0xfffaf0e6 }, |
|
|
3137 |
{ "magenta", 0xffff00ff }, |
|
|
3138 |
{ "maroon", 0xff800000 }, |
|
|
3139 |
{ "mediumaquamarine", 0xff66cdaa }, |
|
|
3140 |
{ "mediumblue", 0xff0000cd }, |
|
|
3141 |
{ "mediumorchid", 0xffba55d3 }, |
|
|
3142 |
{ "mediumpurple", 0xff9370db }, |
|
|
3143 |
{ "mediumseagreen", 0xff3cb371 }, |
|
|
3144 |
{ "mediumslateblue", 0xff7b68ee }, |
|
|
3145 |
{ "mediumspringgreen", 0xff00fa9a }, |
|
|
3146 |
{ "mediumturquoise", 0xff48d1cc }, |
|
|
3147 |
{ "mediumvioletred", 0xffc71585 }, |
|
|
3148 |
{ "midnightblue", 0xff191970 }, |
|
|
3149 |
{ "mintcream", 0xfff5fffa }, |
|
|
3150 |
{ "mistyrose", 0xffffe4e1 }, |
|
|
3151 |
{ "moccasin", 0xffffe4b5 }, |
|
|
3152 |
{ "navajowhite", 0xffffdead }, |
|
|
3153 |
{ "navy", 0xff000080 }, |
|
|
3154 |
{ "oldlace", 0xfffdf5e6 }, |
|
|
3155 |
{ "olive", 0xff808000 }, |
|
|
3156 |
{ "olivedrab", 0xff6b8e23 }, |
|
|
3157 |
{ "orange", 0xffffa500 }, |
|
|
3158 |
{ "orangered", 0xffff4500 }, |
|
|
3159 |
{ "orchid", 0xffda70d6 }, |
|
|
3160 |
{ "palegoldenrod", 0xffeee8aa }, |
|
|
3161 |
{ "palegreen", 0xff98fb98 }, |
|
|
3162 |
{ "paleturquoise", 0xffafeeee }, |
|
|
3163 |
{ "palevioletred", 0xffdb7093 }, |
|
|
3164 |
{ "papayawhip", 0xffffefd5 }, |
|
|
3165 |
{ "peachpuff", 0xffffdab9 }, |
|
|
3166 |
{ "peru", 0xffcd853f }, |
|
|
3167 |
{ "pink", 0xffffc0cb }, |
|
|
3168 |
{ "plum", 0xffdda0dd }, |
|
|
3169 |
{ "powderblue", 0xffb0e0e6 }, |
|
|
3170 |
{ "purple", 0xff800080 }, |
|
|
3171 |
{ "red", 0xffff0000 }, |
|
|
3172 |
{ "rosybrown", 0xffbc8f8f }, |
|
|
3173 |
{ "royalblue", 0xff4169e1 }, |
|
|
3174 |
{ "saddlebrown", 0xff8b4513 }, |
|
|
3175 |
{ "salmon", 0xfffa8072 }, |
|
|
3176 |
{ "sandybrown", 0xfff4a460 }, |
|
|
3177 |
{ "seagreen", 0xff2e8b57 }, |
|
|
3178 |
{ "seashell", 0xfffff5ee }, |
|
|
3179 |
{ "sienna", 0xffa0522d }, |
|
|
3180 |
{ "silver", 0xffc0c0c0 }, |
|
|
3181 |
{ "skyblue", 0xff87ceeb }, |
|
|
3182 |
{ "slateblue", 0xff6a5acd }, |
|
|
3183 |
{ "slategray", 0xff708090 }, |
|
|
3184 |
{ "slategrey", 0xff708090 }, |
|
|
3185 |
{ "snow", 0xfffffafa }, |
|
|
3186 |
{ "springgreen", 0xff00ff7f }, |
|
|
3187 |
{ "steelblue", 0xff4682b4 }, |
|
|
3188 |
{ "tan", 0xffd2b48c }, |
|
|
3189 |
{ "teal", 0xff008080 }, |
|
|
3190 |
{ "thistle", 0xffd8bfd8 }, |
|
|
3191 |
{ "tomato", 0xffff6347 }, |
|
|
3192 |
{ "turquoise", 0xff40e0d0 }, |
|
|
3193 |
{ "violet", 0xffee82ee }, |
|
|
3194 |
{ "violetred", 0xffd02090 }, |
|
|
3195 |
{ "wheat", 0xfff5deb3 }, |
|
|
3196 |
{ "white", 0xffffffff }, |
|
|
3197 |
{ "whitesmoke", 0xfff5f5f5 }, |
|
|
3198 |
{ "yellow", 0xffffff00 }, |
|
|
3199 |
{ "yellowgreen", 0xff9acd32 } |
|
|
3200 |
}; |
|
|
3201 |
const struct colour_map *entry; |
|
|
3202 |
|
|
|
3203 |
entry = bsearch(name, named_colours, |
|
|
3204 |
sizeof(named_colours) / sizeof(named_colours[0]), |
|
|
3205 |
sizeof(named_colours[0]), |
|
|
3206 |
cmp_colour_name); |
|
|
3207 |
|
|
|
3208 |
if (entry != NULL) |
|
|
3209 |
*result = entry->color; |
|
|
3210 |
|
|
|
3211 |
return entry != NULL; |
|
|
3212 |
} |
|
|
3213 |
|
|
|
3214 |
/** |
|
|
3215 |
* Parse a dimension string |
|
|
3216 |
* |
|
|
3217 |
* \param data Data to parse (NUL-terminated) |
|
|
3218 |
* \param strict Whether to enforce strict parsing rules |
|
|
3219 |
* \param length Pointer to location to receive dimension's length |
|
|
3220 |
* \param unit Pointer to location to receive dimension's unit |
|
|
3221 |
* \return true on success, false on invalid input |
|
|
3222 |
*/ |
|
|
3223 |
bool parse_dimension(const char *data, bool strict, css_fixed *length, |
|
|
3224 |
css_unit *unit) |
|
|
3225 |
{ |
|
|
3226 |
size_t len; |
|
|
3227 |
size_t read; |
|
|
3228 |
css_fixed value; |
|
|
3229 |
|
|
|
3230 |
len = strlen(data); |
|
|
3231 |
|
|
|
3232 |
if (parse_number(data, false, true, &value, &read) == false) |
|
|
3233 |
return false; |
|
|
3234 |
|
|
|
3235 |
if (strict && value < INTTOFIX(1)) |
|
|
3236 |
return false; |
|
|
3237 |
|
|
|
3238 |
*length = value; |
|
|
3239 |
|
|
|
3240 |
if (len > read && data[read] == '%') |
|
|
3241 |
*unit = CSS_UNIT_PCT; |
|
|
3242 |
else |
|
|
3243 |
*unit = CSS_UNIT_PX; |
|
|
3244 |
|
|
|
3245 |
return true; |
|
|
3246 |
} |
|
|
3247 |
|
|
|
3248 |
/** |
|
|
3249 |
* Parse a number string |
|
|
3250 |
* |
|
|
3251 |
* \param data Data to parse (NUL-terminated) |
|
|
3252 |
* \param maybe_negative Negative numbers permitted |
|
|
3253 |
* \param real Floating point numbers permitted |
|
|
3254 |
* \param value Pointer to location to receive numeric value |
|
|
3255 |
* \param consumed Pointer to location to receive number of input |
|
|
3256 |
* bytes consumed |
|
|
3257 |
* \return true on success, false on invalid input |
|
|
3258 |
*/ |
|
|
3259 |
bool parse_number(const char *data, bool maybe_negative, bool real, |
|
|
3260 |
css_fixed *value, size_t *consumed) |
|
|
3261 |
{ |
|
|
3262 |
size_t len; |
|
|
3263 |
const uint8_t *ptr; |
|
|
3264 |
int32_t intpart = 0; |
|
|
3265 |
int32_t fracpart = 0; |
|
|
3266 |
int32_t pwr = 1; |
|
|
3267 |
int sign = 1; |
|
|
3268 |
|
|
|
3269 |
*consumed = 0; |
|
|
3270 |
|
|
|
3271 |
len = strlen(data); |
|
|
3272 |
ptr = (const uint8_t *) data; |
|
|
3273 |
|
|
|
3274 |
if (len == 0) |
|
|
3275 |
return false; |
|
|
3276 |
|
|
|
3277 |
/* Skip leading whitespace */ |
|
|
3278 |
while (len > 0 && isWhitespace(ptr[0])) { |
|
|
3279 |
len--; |
|
|
3280 |
ptr++; |
|
|
3281 |
} |
|
|
3282 |
|
|
|
3283 |
if (len == 0) |
|
|
3284 |
return false; |
|
|
3285 |
|
|
|
3286 |
/* Extract sign, if any */ |
|
|
3287 |
if (ptr[0] == '+') { |
|
|
3288 |
len--; |
|
|
3289 |
ptr++; |
|
|
3290 |
} else if (ptr[0] == '-' && maybe_negative) { |
|
|
3291 |
sign = -1; |
|
|
3292 |
len--; |
|
|
3293 |
ptr++; |
|
|
3294 |
} |
|
|
3295 |
|
|
|
3296 |
if (len == 0) |
|
|
3297 |
return false; |
|
|
3298 |
|
|
|
3299 |
/* Must have a digit [0,9] */ |
|
|
3300 |
if ('0' > ptr[0] || ptr[0] > '9') |
|
|
3301 |
return false; |
|
|
3302 |
|
|
|
3303 |
/* Now extract intpart, assuming base 10 */ |
|
|
3304 |
while (len > 0) { |
|
|
3305 |
/* Stop on first non-digit */ |
|
|
3306 |
if (ptr[0] < '0' || '9' < ptr[0]) |
|
|
3307 |
break; |
|
|
3308 |
|
|
|
3309 |
/* Prevent overflow of 'intpart'; proper clamping below */ |
|
|
3310 |
if (intpart < (1 << 22)) { |
|
|
3311 |
intpart *= 10; |
|
|
3312 |
intpart += ptr[0] - '0'; |
|
|
3313 |
} |
|
|
3314 |
ptr++; |
|
|
3315 |
len--; |
|
|
3316 |
} |
|
|
3317 |
|
|
|
3318 |
/* And fracpart, again, assuming base 10 */ |
|
|
3319 |
if (real && len > 1 && ptr[0] == '.' && |
|
|
3320 |
('0' <= ptr[1] && ptr[1] <= '9')) { |
|
|
3321 |
ptr++; |
|
|
3322 |
len--; |
|
|
3323 |
|
|
|
3324 |
while (len > 0) { |
|
|
3325 |
if (ptr[0] < '0' || '9' < ptr[0]) |
|
|
3326 |
break; |
|
|
3327 |
|
|
|
3328 |
if (pwr < 1000000) { |
|
|
3329 |
pwr *= 10; |
|
|
3330 |
fracpart *= 10; |
|
|
3331 |
fracpart += ptr[0] - '0'; |
|
|
3332 |
} |
|
|
3333 |
ptr++; |
|
|
3334 |
len--; |
|
|
3335 |
} |
|
|
3336 |
|
|
|
3337 |
fracpart = ((1 << 10) * fracpart + pwr/2) / pwr; |
|
|
3338 |
if (fracpart >= (1 << 10)) { |
|
|
3339 |
intpart++; |
|
|
3340 |
fracpart &= (1 << 10) - 1; |
|
|
3341 |
} |
|
|
3342 |
} |
|
|
3343 |
|
|
|
3344 |
if (sign > 0) { |
|
|
3345 |
/* If the result is larger than we can represent, |
|
|
3346 |
* then clamp to the maximum value we can store. */ |
|
|
3347 |
if (intpart >= (1 << 21)) { |
|
|
3348 |
intpart = (1 << 21) - 1; |
|
|
3349 |
fracpart = (1 << 10) - 1; |
|
|
3350 |
} |
|
|
3351 |
} else { |
|
|
3352 |
/* If the negated result is smaller than we can represent |
|
|
3353 |
* then clamp to the minimum value we can store. */ |
|
|
3354 |
if (intpart >= (1 << 21)) { |
|
|
3355 |
intpart = -(1 << 21); |
|
|
3356 |
fracpart = 0; |
|
|
3357 |
} else { |
|
|
3358 |
intpart = -intpart; |
|
|
3359 |
if (fracpart) { |
|
|
3360 |
fracpart = (1 << 10) - fracpart; |
|
|
3361 |
intpart--; |
|
|
3362 |
} |
|
|
3363 |
} |
|
|
3364 |
} |
|
|
3365 |
|
|
|
3366 |
*value = (intpart << 10) | fracpart; |
|
|
3367 |
|
|
|
3368 |
*consumed = ptr - (const uint8_t *) data; |
|
|
3369 |
|
|
|
3370 |
return true; |
|
|
3371 |
} |
|
|
3372 |
|
|
|
3373 |
/** |
|
|
3374 |
* Parse a font \@size attribute |
|
|
3375 |
* |
|
|
3376 |
* \param size Data to parse (NUL-terminated) |
|
|
3377 |
* \param val Pointer to location to receive enum value |
|
|
3378 |
* \param len Pointer to location to receive length |
|
|
3379 |
* \param unit Pointer to location to receive unit |
|
|
3380 |
* \return True on success, false on failure |
|
|
3381 |
*/ |
|
|
3382 |
bool parse_font_size(const char *size, uint8_t *val, |
|
|
3383 |
css_fixed *len, css_unit *unit) |
|
|
3384 |
{ |
|
|
3385 |
static const uint8_t size_map[] = { |
|
|
3386 |
CSS_FONT_SIZE_XX_SMALL, |
|
|
3387 |
CSS_FONT_SIZE_SMALL, |
|
|
3388 |
CSS_FONT_SIZE_MEDIUM, |
|
|
3389 |
CSS_FONT_SIZE_LARGE, |
|
|
3390 |
CSS_FONT_SIZE_X_LARGE, |
|
|
3391 |
CSS_FONT_SIZE_XX_LARGE, |
|
|
3392 |
CSS_FONT_SIZE_DIMENSION /* xxx-large (see below) */ |
|
|
3393 |
}; |
|
|
3394 |
|
|
|
3395 |
const char *p = size; |
|
|
3396 |
char mode; |
|
|
3397 |
int value = 0; |
|
|
3398 |
|
|
|
3399 |
/* Skip whitespace */ |
|
|
3400 |
while (*p != '\0' && isWhitespace(*p)) |
|
|
3401 |
p++; |
|
|
3402 |
|
|
|
3403 |
mode = *p; |
|
|
3404 |
|
|
|
3405 |
/* Skip +/- */ |
|
|
3406 |
if (mode == '+' || mode == '-') |
|
|
3407 |
p++; |
|
|
3408 |
|
|
|
3409 |
/* Need at least one digit */ |
|
|
3410 |
if (*p < '0' || *p > '9') { |
|
|
3411 |
return false; |
|
|
3412 |
} |
|
|
3413 |
|
|
|
3414 |
/* Consume digits, computing value */ |
|
|
3415 |
while ('0' <= *p && *p <= '9') { |
|
|
3416 |
value = value * 10 + (*p - '0'); |
|
|
3417 |
p++; |
|
|
3418 |
} |
|
|
3419 |
|
|
|
3420 |
/* Resolve relative sizes */ |
|
|
3421 |
if (mode == '+') |
|
|
3422 |
value += 3; |
|
|
3423 |
else if (mode == '-') |
|
|
3424 |
value = 3 - value; |
|
|
3425 |
|
|
|
3426 |
/* Clamp to range [1,7] */ |
|
|
3427 |
if (value < 1) |
|
|
3428 |
value = 1; |
|
|
3429 |
else if (value > 7) |
|
|
3430 |
value = 7; |
|
|
3431 |
|
|
|
3432 |
if (value == 7) { |
|
|
3433 |
/* Manufacture xxx-large */ |
|
|
3434 |
*len = FDIV(FMUL(INTTOFIX(3), INTTOFIX(nsoption_int(font_size))), |
|
|
3435 |
F_10); |
|
|
3436 |
} else { |
|
|
3437 |
/* Len is irrelevant */ |
|
|
3438 |
*len = 0; |
|
|
3439 |
} |
|
|
3440 |
|
|
|
3441 |
*unit = CSS_UNIT_PT; |
|
|
3442 |
*val = size_map[value - 1]; |
|
|
3443 |
|
|
|
3444 |
return true; |
|
|
3445 |
} |
|
|
3446 |
|
|
|
3447 |
/****************************************************************************** |
|
|
3448 |
* Utility functions * |
|
|
3449 |
******************************************************************************/ |
|
|
3450 |
|
|
|
3451 |
/** |
|
|
3452 |
* Determine if a given character is whitespace |
|
|
3453 |
* |
|
|
3454 |
* \param c Character to consider |
|
|
3455 |
* \return true if character is whitespace, false otherwise |
|
|
3456 |
*/ |
|
|
3457 |
bool isWhitespace(char c) |
|
|
3458 |
{ |
|
|
3459 |
return c == ' ' || c == '\t' || c == '\f' || c == '\r' || c == '\n'; |
|
|
3460 |
} |
|
|
3461 |
|
|
|
3462 |
/** |
|
|
3463 |
* Determine if a given character is a valid hex digit |
|
|
3464 |
* |
|
|
3465 |
* \param c Character to consider |
|
|
3466 |
* \return true if character is a valid hex digit, false otherwise |
|
|
3467 |
*/ |
|
|
3468 |
bool isHex(char c) |
|
|
3469 |
{ |
|
|
3470 |
return ('0' <= c && c <= '9') || |
|
|
3471 |
('A' <= (c & ~0x20) && (c & ~0x20) <= 'F'); |
|
|
3472 |
} |
|
|
3473 |
|
|
|
3474 |
/** |
|
|
3475 |
* Convert a character representing a hex digit to the corresponding hex value |
|
|
3476 |
* |
|
|
3477 |
* \param c Character to convert |
|
|
3478 |
* \return Hex value represented by character |
|
|
3479 |
* |
|
|
3480 |
* \note This function assumes an ASCII-compatible character set |
|
|
3481 |
*/ |
|
|
3482 |
uint8_t charToHex(char c) |
|
|
3483 |
{ |
|
|
3484 |
/* 0-9 */ |
|
|
3485 |
c -= '0'; |
|
|
3486 |
|
|
|
3487 |
/* A-F */ |
|
|
3488 |
if (c > 9) |
|
|
3489 |
c -= 'A' - '9' - 1; |
|
|
3490 |
|
|
|
3491 |
/* a-f */ |
|
|
3492 |
if (c > 15) |
|
|
3493 |
c -= 'a' - 'A'; |
|
|
3494 |
|
|
|
3495 |
return c; |
|
|
3496 |
} |
|
|
3497 |
|