1 files changed, 125 insertions, 0 deletions
diff --git a/Source/WebKit2/UIProcess/API/gtk/WebKitWebViewBaseAccessible.cpp b/Source/WebKit2/UIProcess/API/gtk/WebKitWebViewBaseAccessible.cpp
new file mode 100644
index 000000000..09a11abe6
--- /dev/null
+++ b/Source/WebKit2/UIProcess/API/gtk/WebKitWebViewBaseAccessible.cpp
@@ -0,0 +1,125 @@
+/*
+ * Copyright (C) 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 "WebKitWebViewBaseAccessible.h"
+
+#include <gtk/gtk.h>
+
+struct _WebKitWebViewBaseAccessiblePrivate {
+    GtkWidget* widget;
+};
+
+G_DEFINE_TYPE(WebKitWebViewBaseAccessible, webkit_web_view_base_accessible, ATK_TYPE_SOCKET)
+
+static void webkitWebViewBaseAccessibleFinalize(GObject* gobject)
+{
+    WebKitWebViewBaseAccessible* accessible = WEBKIT_WEB_VIEW_BASE_ACCESSIBLE(gobject);
+    accessible->priv->~WebKitWebViewBaseAccessiblePrivate();
+    G_OBJECT_CLASS(webkit_web_view_base_accessible_parent_class)->finalize(gobject);
+}
+
+static void webkitWebViewBaseAccessibleWidgetDestroyed(GtkWidget* widget, WebKitWebViewBaseAccessible* accessible)
+{
+    accessible->priv->widget = 0;
+    atk_object_notify_state_change(ATK_OBJECT(accessible), ATK_STATE_DEFUNCT, TRUE);
+}
+
+static void webkitWebViewBaseAccessibleInitialize(AtkObject* atkObject, gpointer data)
+{
+    if (ATK_OBJECT_CLASS(webkit_web_view_base_accessible_parent_class)->initialize)
+        ATK_OBJECT_CLASS(webkit_web_view_base_accessible_parent_class)->initialize(atkObject, data);
+
+    if (data && GTK_IS_WIDGET(data)) {
+        WebKitWebViewBaseAccessible* accessible = WEBKIT_WEB_VIEW_BASE_ACCESSIBLE(atkObject);
+        accessible->priv->widget = GTK_WIDGET(data);
+
+        g_signal_connect_after(accessible->priv->widget, "destroy",
+                               G_CALLBACK(webkitWebViewBaseAccessibleWidgetDestroyed), atkObject);
+    }
+
+    atk_object_set_role(atkObject, ATK_ROLE_FILLER);
+}
+
+static AtkStateSet* webkitWebViewBaseAccessibleRefStateSet(AtkObject* atkObject)
+{
+    WebKitWebViewBaseAccessible* accessible = WEBKIT_WEB_VIEW_BASE_ACCESSIBLE(atkObject);
+
+    AtkStateSet* stateSet;
+    if (accessible->priv->widget) {
+        // Use the implementation of AtkSocket if the widget is still alive.
+        stateSet = ATK_OBJECT_CLASS(webkit_web_view_base_accessible_parent_class)->ref_state_set(atkObject);
+    } else {
+        // If the widget is no longer alive, save some remote calls
+        // (because of AtkSocket's implementation of ref_state_set())
+        // and just return that this AtkObject is defunct.
+        stateSet = atk_state_set_new();
+        atk_state_set_add_state(stateSet, ATK_STATE_DEFUNCT);
+    }
+
+    return stateSet;
+}
+
+static gint webkitWebViewBaseAccessibleGetIndexInParent(AtkObject* atkObject)
+{
+    AtkObject* atkParent = atk_object_get_parent(atkObject);
+    if (!atkParent)
+        return -1;
+
+    guint count = atk_object_get_n_accessible_children(atkParent);
+    for (guint i = 0; i < count; ++i) {
+        AtkObject* child = atk_object_ref_accessible_child(atkParent, i);
+        bool childIsObject = child == atkObject;
+        g_object_unref(child);
+        if (childIsObject)
+            return i;
+    }
+
+    return -1;
+}
+
+static void webkit_web_view_base_accessible_init(WebKitWebViewBaseAccessible* accessible)
+{
+    WebKitWebViewBaseAccessiblePrivate* priv = G_TYPE_INSTANCE_GET_PRIVATE(accessible, WEBKIT_TYPE_WEB_VIEW_BASE_ACCESSIBLE, WebKitWebViewBaseAccessiblePrivate);
+    accessible->priv = priv;
+    new (priv) WebKitWebViewBaseAccessiblePrivate();
+}
+
+static void webkit_web_view_base_accessible_class_init(WebKitWebViewBaseAccessibleClass* klass)
+{
+    GObjectClass* gObjectClass = G_OBJECT_CLASS(klass);
+    gObjectClass->finalize = webkitWebViewBaseAccessibleFinalize;
+
+    // No need to implement get_n_children() and ref_child() here
+    // since this is a subclass of AtkSocket and all the logic related
+    // to those functions will be implemented by the ATK bridge.
+    AtkObjectClass* atkObjectClass = ATK_OBJECT_CLASS(klass);
+    atkObjectClass->initialize = webkitWebViewBaseAccessibleInitialize;
+    atkObjectClass->ref_state_set = webkitWebViewBaseAccessibleRefStateSet;
+    atkObjectClass->get_index_in_parent = webkitWebViewBaseAccessibleGetIndexInParent;
+
+    g_type_class_add_private(klass, sizeof(WebKitWebViewBaseAccessiblePrivate));
+}
+
+WebKitWebViewBaseAccessible* webkitWebViewBaseAccessibleNew(GtkWidget* widget)
+{
+    AtkObject* object = ATK_OBJECT(g_object_new(WEBKIT_TYPE_WEB_VIEW_BASE_ACCESSIBLE, NULL));
+    atk_object_initialize(object, widget);
+    return WEBKIT_WEB_VIEW_BASE_ACCESSIBLE(object);
+}