1 /*
2 * Copyright (C) 2018-2020 Alexander Borisov
3 *
4 * Author: Alexander Borisov <borisov@lexbor.com>
5 */
6
7 #include "lexbor/html/tree/insertion_mode.h"
8 #include "lexbor/html/tree/open_elements.h"
9 #include "lexbor/html/tree/active_formatting.h"
10 #include "lexbor/html/tree/template_insertion.h"
11 #include "lexbor/html/interfaces/script_element.h"
12 #include "lexbor/html/interfaces/template_element.h"
13 #include "lexbor/html/tokenizer/state_script.h"
14
15
16 static bool
17 lxb_html_tree_insertion_mode_in_head_open(lxb_html_tree_t *tree,
18 lxb_html_token_t *token);
19
20 static bool
21 lxb_html_tree_insertion_mode_in_head_closed(lxb_html_tree_t *tree,
22 lxb_html_token_t *token);
23
24 lxb_inline bool
25 lxb_html_tree_insertion_mode_in_head_script(lxb_html_tree_t *tree,
26 lxb_html_token_t *token);
27
28 lxb_inline bool
29 lxb_html_tree_insertion_mode_in_head_template(lxb_html_tree_t *tree,
30 lxb_html_token_t *token);
31
32 lxb_inline bool
33 lxb_html_tree_insertion_mode_in_head_template_closed(lxb_html_tree_t *tree,
34 lxb_html_token_t *token);
35
36 lxb_inline bool
37 lxb_html_tree_insertion_mode_in_head_anything_else(lxb_html_tree_t *tree);
38
39
40 bool
lxb_html_tree_insertion_mode_in_head(lxb_html_tree_t * tree,lxb_html_token_t * token)41 lxb_html_tree_insertion_mode_in_head(lxb_html_tree_t *tree,
42 lxb_html_token_t *token)
43 {
44 if (token->type & LXB_HTML_TOKEN_TYPE_CLOSE) {
45 return lxb_html_tree_insertion_mode_in_head_closed(tree, token);;
46 }
47
48 return lxb_html_tree_insertion_mode_in_head_open(tree, token);
49 }
50
51 static bool
lxb_html_tree_insertion_mode_in_head_open(lxb_html_tree_t * tree,lxb_html_token_t * token)52 lxb_html_tree_insertion_mode_in_head_open(lxb_html_tree_t *tree,
53 lxb_html_token_t *token)
54 {
55 switch (token->tag_id) {
56 case LXB_TAG__EM_COMMENT: {
57 lxb_dom_comment_t *comment;
58
59 comment = lxb_html_tree_insert_comment(tree, token, NULL);
60 if (comment == NULL) {
61 tree->status = LXB_STATUS_ERROR_MEMORY_ALLOCATION;
62
63 return lxb_html_tree_process_abort(tree);
64 }
65
66 break;
67 }
68
69 case LXB_TAG__EM_DOCTYPE:
70 lxb_html_tree_parse_error(tree, token,
71 LXB_HTML_RULES_ERROR_DOTOINHEMO);
72 break;
73
74 case LXB_TAG_HTML:
75 return lxb_html_tree_insertion_mode_in_body(tree, token);
76
77 case LXB_TAG_BASE:
78 case LXB_TAG_BASEFONT:
79 case LXB_TAG_BGSOUND:
80 case LXB_TAG_LINK: {
81 lxb_html_element_t *element;
82
83 element = lxb_html_tree_insert_html_element(tree, token);
84 if (element == NULL) {
85 tree->status = LXB_STATUS_ERROR_MEMORY_ALLOCATION;
86
87 return lxb_html_tree_process_abort(tree);
88 }
89
90 lxb_html_tree_open_elements_pop(tree);
91 lxb_html_tree_acknowledge_token_self_closing(tree, token);
92
93 break;
94 }
95
96 case LXB_TAG_META: {
97 lxb_html_element_t *element;
98
99 element = lxb_html_tree_insert_html_element(tree, token);
100 if (element == NULL) {
101 tree->status = LXB_STATUS_ERROR_MEMORY_ALLOCATION;
102
103 return lxb_html_tree_process_abort(tree);
104 }
105
106 lxb_html_tree_open_elements_pop(tree);
107 lxb_html_tree_acknowledge_token_self_closing(tree, token);
108
109 /*
110 * TODO: Check encoding: charset attribute or http-equiv attribute.
111 */
112
113 break;
114 }
115
116 case LXB_TAG_TITLE: {
117 lxb_html_element_t *element;
118
119 element = lxb_html_tree_generic_rcdata_parsing(tree, token);
120 if (element == NULL) {
121 tree->status = LXB_STATUS_ERROR_MEMORY_ALLOCATION;
122
123 return lxb_html_tree_process_abort(tree);
124 }
125
126 break;
127 }
128
129 case LXB_TAG_NOSCRIPT: {
130 lxb_html_element_t *element;
131
132 if (tree->document->dom_document.scripting) {
133 element = lxb_html_tree_generic_rawtext_parsing(tree, token);
134 }
135 else {
136 element = lxb_html_tree_insert_html_element(tree, token);
137 tree->mode = lxb_html_tree_insertion_mode_in_head_noscript;
138 }
139
140 if (element == NULL) {
141 tree->status = LXB_STATUS_ERROR_MEMORY_ALLOCATION;
142
143 return lxb_html_tree_process_abort(tree);
144 }
145
146 break;
147 }
148
149 case LXB_TAG_NOFRAMES:
150 case LXB_TAG_STYLE: {
151 lxb_html_element_t *element;
152
153 element = lxb_html_tree_generic_rawtext_parsing(tree, token);
154 if (element == NULL) {
155 tree->status = LXB_STATUS_ERROR_MEMORY_ALLOCATION;
156
157 return lxb_html_tree_process_abort(tree);
158 }
159
160 break;
161 }
162
163 case LXB_TAG_SCRIPT:
164 return lxb_html_tree_insertion_mode_in_head_script(tree, token);
165
166 case LXB_TAG_TEMPLATE:
167 return lxb_html_tree_insertion_mode_in_head_template(tree, token);
168
169 case LXB_TAG_HEAD:
170 lxb_html_tree_parse_error(tree, token,
171 LXB_HTML_RULES_ERROR_HETOINHEMO);
172 break;
173
174 /*
175 * We can create function for this, but...
176 *
177 * The "in head noscript" insertion mode use this
178 * is you change this code, please, change it in in head noscript" mode
179 */
180 case LXB_TAG__TEXT: {
181 lxb_html_token_t ws_token = {0};
182
183 tree->status = lxb_html_token_data_split_ws_begin(token, &ws_token);
184 if (tree->status != LXB_STATUS_OK) {
185 return lxb_html_tree_process_abort(tree);
186 }
187
188 if (ws_token.text_start != ws_token.text_end) {
189 tree->status = lxb_html_tree_insert_character(tree, &ws_token,
190 NULL);
191 if (tree->status != LXB_STATUS_OK) {
192 return lxb_html_tree_process_abort(tree);
193 }
194 }
195
196 if (token->text_start == token->text_end) {
197 return true;
198 }
199 }
200 /* fall through */
201
202 default:
203 return lxb_html_tree_insertion_mode_in_head_anything_else(tree);
204 }
205
206 return true;
207 }
208
209 static bool
lxb_html_tree_insertion_mode_in_head_closed(lxb_html_tree_t * tree,lxb_html_token_t * token)210 lxb_html_tree_insertion_mode_in_head_closed(lxb_html_tree_t *tree,
211 lxb_html_token_t *token)
212 {
213 switch (token->tag_id) {
214 case LXB_TAG_HEAD:
215 lxb_html_tree_open_elements_pop(tree);
216
217 tree->mode = lxb_html_tree_insertion_mode_after_head;
218
219 break;
220
221 case LXB_TAG_BODY:
222 case LXB_TAG_HTML:
223 case LXB_TAG_BR:
224 return lxb_html_tree_insertion_mode_in_head_anything_else(tree);
225
226 case LXB_TAG_TEMPLATE:
227 return lxb_html_tree_insertion_mode_in_head_template_closed(tree,
228 token);
229
230 default:
231 lxb_html_tree_parse_error(tree, token,
232 LXB_HTML_RULES_ERROR_UNCLTOINHEMO);
233 break;
234
235 }
236
237 return true;
238 }
239
240 lxb_inline bool
lxb_html_tree_insertion_mode_in_head_script(lxb_html_tree_t * tree,lxb_html_token_t * token)241 lxb_html_tree_insertion_mode_in_head_script(lxb_html_tree_t *tree,
242 lxb_html_token_t *token)
243 {
244 lxb_dom_node_t *ap_node;
245 lxb_html_element_t *element;
246 lxb_html_tree_insertion_position_t ipos;
247
248 ap_node = lxb_html_tree_appropriate_place_inserting_node(tree, NULL, &ipos);
249 if (ap_node == NULL) {
250 tree->status = LXB_STATUS_ERROR;
251
252 return lxb_html_tree_process_abort(tree);
253 }
254
255 if (ipos == LXB_HTML_TREE_INSERTION_POSITION_CHILD) {
256 element = lxb_html_tree_create_element_for_token(tree, token,
257 LXB_NS_HTML, ap_node);
258 }
259 else {
260 element = lxb_html_tree_create_element_for_token(tree, token,
261 LXB_NS_HTML,
262 ap_node->parent);
263 }
264
265 if (element == NULL) {
266 tree->status = LXB_STATUS_ERROR_MEMORY_ALLOCATION;
267
268 return lxb_html_tree_process_abort(tree);
269 }
270
271 /* TODO: Need code for set flags for Script Element */
272
273 tree->status = lxb_html_tree_open_elements_push(tree,
274 lxb_dom_interface_node(element));
275 if (tree->status != LXB_HTML_STATUS_OK) {
276 lxb_html_script_element_interface_destroy(lxb_html_interface_script(element));
277
278 return lxb_html_tree_process_abort(tree);
279 }
280
281 lxb_html_tree_insert_node(ap_node, lxb_dom_interface_node(element), ipos);
282
283 /*
284 * Need for tokenizer state Script
285 * See description for
286 * 'lxb_html_tokenizer_state_script_data_before' function
287 */
288 lxb_html_tokenizer_tmp_tag_id_set(tree->tkz_ref, token->tag_id);
289 lxb_html_tokenizer_state_set(tree->tkz_ref,
290 lxb_html_tokenizer_state_script_data_before);
291
292 tree->original_mode = tree->mode;
293 tree->mode = lxb_html_tree_insertion_mode_text;
294
295 return true;
296 }
297
298 lxb_inline bool
lxb_html_tree_insertion_mode_in_head_template(lxb_html_tree_t * tree,lxb_html_token_t * token)299 lxb_html_tree_insertion_mode_in_head_template(lxb_html_tree_t *tree,
300 lxb_html_token_t *token)
301 {
302 lxb_html_element_t *element;
303
304 element = lxb_html_tree_insert_html_element(tree, token);
305 if (element == NULL) {
306 tree->status = LXB_STATUS_ERROR_MEMORY_ALLOCATION;
307
308 return lxb_html_tree_process_abort(tree);
309 }
310
311 tree->status = lxb_html_tree_active_formatting_push_marker(tree);
312 if (tree->status != LXB_STATUS_OK) {
313 lxb_html_template_element_interface_destroy(lxb_html_interface_template(element));
314
315 return lxb_html_tree_process_abort(tree);
316 }
317
318 tree->frameset_ok = false;
319 tree->mode = lxb_html_tree_insertion_mode_in_template;
320
321 tree->status = lxb_html_tree_template_insertion_push(tree,
322 lxb_html_tree_insertion_mode_in_template);
323 if (tree->status != LXB_STATUS_OK) {
324 lxb_html_template_element_interface_destroy(lxb_html_interface_template(element));
325
326 return lxb_html_tree_process_abort(tree);
327 }
328
329 return true;
330 }
331
332 lxb_inline bool
lxb_html_tree_insertion_mode_in_head_template_closed(lxb_html_tree_t * tree,lxb_html_token_t * token)333 lxb_html_tree_insertion_mode_in_head_template_closed(lxb_html_tree_t *tree,
334 lxb_html_token_t *token)
335 {
336 lxb_dom_node_t *temp_node;
337
338 temp_node = lxb_html_tree_open_elements_find_reverse(tree, LXB_TAG_TEMPLATE,
339 LXB_NS_HTML, NULL);
340 if (temp_node == NULL) {
341 lxb_html_tree_parse_error(tree, token,
342 LXB_HTML_RULES_ERROR_TECLTOWIOPINHEMO);
343 return true;
344 }
345
346 lxb_html_tree_generate_all_implied_end_tags_thoroughly(tree, LXB_TAG__UNDEF,
347 LXB_NS__UNDEF);
348
349 temp_node = lxb_html_tree_current_node(tree);
350
351 if (lxb_html_tree_node_is(temp_node, LXB_TAG_TEMPLATE) == false) {
352 lxb_html_tree_parse_error(tree, token,
353 LXB_HTML_RULES_ERROR_TEELISNOCUINHEMO);
354 }
355
356 lxb_html_tree_open_elements_pop_until_tag_id(tree, LXB_TAG_TEMPLATE,
357 LXB_NS_HTML, true);
358
359 lxb_html_tree_active_formatting_up_to_last_marker(tree);
360 lxb_html_tree_template_insertion_pop(tree);
361 lxb_html_tree_reset_insertion_mode_appropriately(tree);
362
363 return true;
364 }
365
366 lxb_inline bool
lxb_html_tree_insertion_mode_in_head_anything_else(lxb_html_tree_t * tree)367 lxb_html_tree_insertion_mode_in_head_anything_else(lxb_html_tree_t *tree)
368 {
369 lxb_html_tree_open_elements_pop(tree);
370
371 tree->mode = lxb_html_tree_insertion_mode_after_head;
372
373 return false;
374 }
375
