1 /*
2 * Copyright (C) 2018 Alexander Borisov
3 *
4 * Author: Alexander Borisov <borisov@lexbor.com>
5 */
6
7 #include "lexbor/html/interfaces/title_element.h"
8 #include "lexbor/html/interfaces/document.h"
9 #include "lexbor/dom/interfaces/text.h"
10
11
12 lxb_html_title_element_t *
lxb_html_title_element_interface_create(lxb_html_document_t * document)13 lxb_html_title_element_interface_create(lxb_html_document_t *document)
14 {
15 lxb_html_title_element_t *element;
16
17 element = lexbor_mraw_calloc(document->dom_document.mraw,
18 sizeof(lxb_html_title_element_t));
19 if (element == NULL) {
20 return NULL;
21 }
22
23 lxb_dom_node_t *node = lxb_dom_interface_node(element);
24
25 node->owner_document = lxb_html_document_original_ref(document);
26 node->type = LXB_DOM_NODE_TYPE_ELEMENT;
27
28 return element;
29 }
30
31 lxb_html_title_element_t *
lxb_html_title_element_interface_destroy(lxb_html_title_element_t * title)32 lxb_html_title_element_interface_destroy(lxb_html_title_element_t *title)
33 {
34 lexbor_str_t *text;
35 lxb_dom_document_t *doc = lxb_dom_interface_node(title)->owner_document;
36
37 text = title->strict_text;
38
39 (void) lxb_dom_node_interface_destroy(lxb_dom_interface_node(title));
40
41 if (text != NULL) {
42 lexbor_str_destroy(text, doc->text, false);
43 lxb_dom_document_destroy_struct(doc, text);
44 }
45
46 return NULL;
47 }
48
49 const lxb_char_t *
lxb_html_title_element_text(lxb_html_title_element_t * title,size_t * len)50 lxb_html_title_element_text(lxb_html_title_element_t *title, size_t *len)
51 {
52 if (lxb_dom_interface_node(title)->first_child == NULL) {
53 goto failed;
54 }
55
56 if (lxb_dom_interface_node(title)->first_child->type != LXB_DOM_NODE_TYPE_TEXT) {
57 goto failed;
58 }
59
60 lxb_dom_text_t *text;
61
62 text = lxb_dom_interface_text(lxb_dom_interface_node(title)->first_child);
63
64 if (len != NULL) {
65 *len = text->char_data.data.length;
66 }
67
68 return text->char_data.data.data;
69
70 failed:
71
72 if (len != NULL) {
73 *len = 0;
74 }
75
76 return NULL;
77 }
78
79 const lxb_char_t *
lxb_html_title_element_strict_text(lxb_html_title_element_t * title,size_t * len)80 lxb_html_title_element_strict_text(lxb_html_title_element_t *title, size_t *len)
81 {
82 const lxb_char_t *text;
83 size_t text_len;
84
85 lxb_dom_document_t *doc = lxb_dom_interface_node(title)->owner_document;
86
87 text = lxb_html_title_element_text(title, &text_len);
88 if (text == NULL) {
89 goto failed;
90 }
91
92 if (title->strict_text != NULL) {
93 if (title->strict_text->length < text_len) {
94 const lxb_char_t *data;
95
96 data = lexbor_str_realloc(title->strict_text,
97 doc->text, (text_len + 1));
98 if (data == NULL) {
99 goto failed;
100 }
101 }
102 }
103 else {
104 title->strict_text = lxb_dom_document_create_struct(doc,
105 sizeof(lexbor_str_t));
106 if (title->strict_text == NULL) {
107 goto failed;
108 }
109
110 lexbor_str_init(title->strict_text, doc->text, text_len);
111 if (title->strict_text->data == NULL) {
112 title->strict_text = lxb_dom_document_destroy_struct(doc,
113 title->strict_text);
114 goto failed;
115 }
116 }
117
118 memcpy(title->strict_text->data, text, sizeof(lxb_char_t) * text_len);
119
120 title->strict_text->data[text_len] = 0x00;
121 title->strict_text->length = text_len;
122
123 lexbor_str_strip_collapse_whitespace(title->strict_text);
124
125 if (len != NULL) {
126 *len = title->strict_text->length;
127 }
128
129 return title->strict_text->data;
130
131 failed:
132
133 if (len != NULL) {
134 *len = 0;
135 }
136
137 return NULL;
138 }
139
