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1 /* | |
2 * Copyright (C) 2010, 2011, 2012 Igalia S.L. | |
3 * | |
4 * This library is free software; you can redistribute it and/or | |
5 * modify it under the terms of the GNU Library General Public | |
6 * License as published by the Free Software Foundation; either | |
7 * version 2 of the License, or (at your option) any later version. | |
8 * | |
9 * This library is distributed in the hope that it will be useful, | |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 * Library General Public License for more details. | |
13 * | |
14 * You should have received a copy of the GNU Library General Public License | |
15 * along with this library; see the file COPYING.LIB. If not, write to | |
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
17 * Boston, MA 02110-1301, USA. | |
18 */ | |
19 | |
20 #include "config.h" | |
21 #include "WebKitAccessibleInterfaceHypertext.h" | |
22 | |
23 #if HAVE(ACCESSIBILITY) | |
24 | |
25 #include "AccessibilityObject.h" | |
26 #include "WebKitAccessibleWrapperAtk.h" | |
27 | |
28 using namespace WebCore; | |
29 | |
30 static AccessibilityObject* core(AtkHypertext* hypertext) | |
31 { | |
32 if (!WEBKIT_IS_ACCESSIBLE(hypertext)) | |
33 return 0; | |
34 | |
35 return webkitAccessibleGetAccessibilityObject(WEBKIT_ACCESSIBLE(hypertext)); | |
36 } | |
37 | |
38 static AtkHyperlink* webkitAccessibleHypertextGetLink(AtkHypertext* hypertext, g
int index) | |
39 { | |
40 AccessibilityObject::AccessibilityChildrenVector children = core(hypertext)-
>children(); | |
41 if (index < 0 || static_cast<unsigned>(index) >= children.size()) | |
42 return 0; | |
43 | |
44 gint currentLink = -1; | |
45 for (unsigned i = 0; i < children.size(); i++) { | |
46 AccessibilityObject* coreChild = children.at(i).get(); | |
47 if (!coreChild->accessibilityIsIgnored()) { | |
48 AtkObject* axObject = coreChild->wrapper(); | |
49 if (!axObject || !ATK_IS_HYPERLINK_IMPL(axObject)) | |
50 continue; | |
51 | |
52 currentLink++; | |
53 if (index != currentLink) | |
54 continue; | |
55 | |
56 return atk_hyperlink_impl_get_hyperlink(ATK_HYPERLINK_IMPL(axObject)
); | |
57 } | |
58 } | |
59 | |
60 return 0; | |
61 } | |
62 | |
63 static gint webkitAccessibleHypertextGetNLinks(AtkHypertext* hypertext) | |
64 { | |
65 AccessibilityObject::AccessibilityChildrenVector children = core(hypertext)-
>children(); | |
66 if (!children.size()) | |
67 return 0; | |
68 | |
69 gint linksFound = 0; | |
70 for (size_t i = 0; i < children.size(); i++) { | |
71 AccessibilityObject* coreChild = children.at(i).get(); | |
72 if (!coreChild->accessibilityIsIgnored()) { | |
73 AtkObject* axObject = coreChild->wrapper(); | |
74 if (axObject && ATK_IS_HYPERLINK_IMPL(axObject)) | |
75 linksFound++; | |
76 } | |
77 } | |
78 | |
79 return linksFound; | |
80 } | |
81 | |
82 static gint webkitAccessibleHypertextGetLinkIndex(AtkHypertext* hypertext, gint
charIndex) | |
83 { | |
84 size_t linksCount = webkitAccessibleHypertextGetNLinks(hypertext); | |
85 if (!linksCount) | |
86 return -1; | |
87 | |
88 for (size_t i = 0; i < linksCount; i++) { | |
89 AtkHyperlink* hyperlink = ATK_HYPERLINK(webkitAccessibleHypertextGetLink
(hypertext, i)); | |
90 gint startIndex = atk_hyperlink_get_start_index(hyperlink); | |
91 gint endIndex = atk_hyperlink_get_end_index(hyperlink); | |
92 | |
93 // Check if the char index in the link's offset range | |
94 if (startIndex <= charIndex && charIndex < endIndex) | |
95 return i; | |
96 } | |
97 | |
98 // Not found if reached | |
99 return -1; | |
100 } | |
101 | |
102 void webkitAccessibleHypertextInterfaceInit(AtkHypertextIface* iface) | |
103 { | |
104 iface->get_link = webkitAccessibleHypertextGetLink; | |
105 iface->get_n_links = webkitAccessibleHypertextGetNLinks; | |
106 iface->get_link_index = webkitAccessibleHypertextGetLinkIndex; | |
107 } | |
108 | |
109 #endif | |
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