FrameSelectionAtk.cpp [plain text]
#include "config.h"
#include "FrameSelection.h"
#if HAVE(ACCESSIBILITY)
#include "AXObjectCache.h"
#include "Document.h"
#include "Frame.h"
#include "WebKitAccessibleWrapperAtk.h"
#if PLATFORM(EFL)
#include <glib.h>
#else
#include <gtk/gtk.h>
#endif
#include <wtf/NeverDestroyed.h>
#include <wtf/RefPtr.h>
namespace WebCore {
static void emitTextSelectionChange(AccessibilityObject* object, VisibleSelection selection, int offset)
{
AtkObject* axObject = object->wrapper();
if (!axObject || !ATK_IS_TEXT(axObject))
return;
g_signal_emit_by_name(axObject, "text-caret-moved", offset);
if (selection.isRange())
g_signal_emit_by_name(axObject, "text-selection-changed");
}
static void maybeEmitTextFocusChange(PassRefPtr<AccessibilityObject> prpObject)
{
static NeverDestroyed<RefPtr<AccessibilityObject>> oldObject;
RefPtr<AccessibilityObject> object = prpObject;
if (object && oldObject.get() && oldObject.get()->document() != object->document())
oldObject.get() = nullptr;
AtkObject* axObject = object ? object->wrapper() : 0;
AtkObject* oldAxObject = oldObject.get() ? oldObject.get()->wrapper() : nullptr;
if (axObject != oldAxObject) {
if (oldAxObject && ATK_IS_TEXT(oldAxObject)) {
g_signal_emit_by_name(oldAxObject, "focus-event", false);
atk_object_notify_state_change(oldAxObject, ATK_STATE_FOCUSED, false);
}
if (axObject && ATK_IS_TEXT(axObject)) {
g_signal_emit_by_name(axObject, "focus-event", true);
atk_object_notify_state_change(axObject, ATK_STATE_FOCUSED, true);
}
}
oldObject.get() = object;
}
void FrameSelection::notifyAccessibilityForSelectionChange()
{
if (!AXObjectCache::accessibilityEnabled())
return;
if (!m_selection.start().isNotNull() || !m_selection.end().isNotNull())
return;
RenderObject* focusedNode = m_selection.end().containerNode()->renderer();
AXObjectCache* cache = m_frame->document()->existingAXObjectCache();
if (!cache)
return;
AccessibilityObject* accessibilityObject = cache->getOrCreate(focusedNode);
if (!accessibilityObject)
return;
int offset;
RefPtr<AccessibilityObject> object = objectFocusedAndCaretOffsetUnignored(accessibilityObject, offset);
if (!object)
return;
emitTextSelectionChange(object.get(), m_selection, offset);
maybeEmitTextFocusChange(object.release());
}
}
#endif // HAVE(ACCESSIBILITY)