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/*
* Copyright (C) 2010, 2011, 2012 Igalia S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "config.h"
#include "WebKitAccessibleInterfaceHypertext.h"
#if HAVE(ACCESSIBILITY)
#include "AccessibilityObject.h"
#include "WebKitAccessibleWrapperAtk.h"
using namespace WebCore;
static AccessibilityObject* core(AtkHypertext* hypertext)
{
if (!WEBKIT_IS_ACCESSIBLE(hypertext))
return 0;
return webkitAccessibleGetAccessibilityObject(WEBKIT_ACCESSIBLE(hypertext));
}
static AtkHyperlink* webkitAccessibleHypertextGetLink(AtkHypertext* hypertext, gint index)
{
AccessibilityObject::AccessibilityChildrenVector children = core(hypertext)->children();
if (index < 0 || static_cast<unsigned>(index) >= children.size())
return 0;
gint currentLink = -1;
for (unsigned i = 0; i < children.size(); i++) {
AccessibilityObject* coreChild = children.at(i).get();
if (!coreChild->accessibilityIsIgnored()) {
AtkObject* axObject = coreChild->wrapper();
if (!axObject || !ATK_IS_HYPERLINK_IMPL(axObject))
continue;
currentLink++;
if (index != currentLink)
continue;
return atk_hyperlink_impl_get_hyperlink(ATK_HYPERLINK_IMPL(axObject));
}
}
return 0;
}
static gint webkitAccessibleHypertextGetNLinks(AtkHypertext* hypertext)
{
AccessibilityObject::AccessibilityChildrenVector children = core(hypertext)->children();
if (!children.size())
return 0;
gint linksFound = 0;
for (size_t i = 0; i < children.size(); i++) {
AccessibilityObject* coreChild = children.at(i).get();
if (!coreChild->accessibilityIsIgnored()) {
AtkObject* axObject = coreChild->wrapper();
if (axObject && ATK_IS_HYPERLINK_IMPL(axObject))
linksFound++;
}
}
return linksFound;
}
static gint webkitAccessibleHypertextGetLinkIndex(AtkHypertext* hypertext, gint charIndex)
{
size_t linksCount = webkitAccessibleHypertextGetNLinks(hypertext);
if (!linksCount)
return -1;
for (size_t i = 0; i < linksCount; i++) {
AtkHyperlink* hyperlink = ATK_HYPERLINK(webkitAccessibleHypertextGetLink(hypertext, i));
gint startIndex = atk_hyperlink_get_start_index(hyperlink);
gint endIndex = atk_hyperlink_get_end_index(hyperlink);
// Check if the char index in the link's offset range
if (startIndex <= charIndex && charIndex < endIndex)
return i;
}
// Not found if reached
return -1;
}
void webkitAccessibleHypertextInterfaceInit(AtkHypertextIface* iface)
{
iface->get_link = webkitAccessibleHypertextGetLink;
iface->get_n_links = webkitAccessibleHypertextGetNLinks;
iface->get_link_index = webkitAccessibleHypertextGetLinkIndex;
}
#endif
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