1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/*
* e-html-editor-utils.c
*
* Copyright (C) 2012 Dan Vrátil <dvratil@redhat.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with the program; if not, see <http://www.gnu.org/licenses/>
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "e-html-editor-utils.h"
#include <string.h>
/**
* e_html_editor_dom_node_find_parent_element:
* @node: Start node
* @tagname: Tag name of element to search
*
* Recursively searches for first occurance of element with given @tagname
* that is parent of given @node.
*
* Returns: A #WebKitDOMElement with @tagname representing parent of @node or
* @NULL when @node has no parent with given @tagname. When @node matches @tagname,
* then the @node is returned.
*/
WebKitDOMElement *
e_html_editor_dom_node_find_parent_element (WebKitDOMNode *node,
const gchar *tagname)
{
gint taglen = strlen (tagname);
while (node) {
if (WEBKIT_DOM_IS_ELEMENT (node)) {
gchar *node_tagname;
node_tagname = webkit_dom_element_get_tag_name (
WEBKIT_DOM_ELEMENT (node));
if (node_tagname &&
(strlen (node_tagname) == taglen) &&
(g_ascii_strncasecmp (node_tagname, tagname, taglen) == 0)) {
g_free (node_tagname);
return WEBKIT_DOM_ELEMENT (node);
}
g_free (node_tagname);
}
node = WEBKIT_DOM_NODE (webkit_dom_node_get_parent_element (node));
}
return NULL;
}
/**
* e_html_editor_dom_node_find_child_element:
* @node: Start node
* @tagname: Tag name of element to search.
*
* Recursively searches for first occurence of element with given @tagname that
* is a child of @node.
*
* Returns: A #WebKitDOMElement with @tagname representing a child of @node or
* @NULL when @node has no child with given @tagname. When @node matches @tagname,
* then the @node is returned.
*/
WebKitDOMElement *
e_html_editor_dom_node_find_child_element (WebKitDOMNode *node,
const gchar *tagname)
{
WebKitDOMNode *start_node = node;
gint taglen = strlen (tagname);
do {
if (WEBKIT_DOM_IS_ELEMENT (node)) {
gchar *node_tagname;
node_tagname = webkit_dom_element_get_tag_name (
WEBKIT_DOM_ELEMENT (node));
if (node_tagname &&
(strlen (node_tagname) == taglen) &&
(g_ascii_strncasecmp (node_tagname, tagname, taglen) == 0)) {
g_free (node_tagname);
return WEBKIT_DOM_ELEMENT (node);
}
g_free (node_tagname);
}
if (webkit_dom_node_has_child_nodes (node)) {
node = webkit_dom_node_get_first_child (node);
} else if (webkit_dom_node_get_next_sibling (node)) {
node = webkit_dom_node_get_next_sibling (node);
} else {
node = webkit_dom_node_get_parent_node (node);
}
} while (!webkit_dom_node_is_same_node (node, start_node));
return NULL;
}
|
