1 files changed, 145 insertions, 0 deletions
diff --git a/accessible/atk/ApplicationAccessibleWrap.cpp b/accessible/atk/ApplicationAccessibleWrap.cpp
new file mode 100644
index 0000000000..4c3e615387
--- /dev/null
+++ b/accessible/atk/ApplicationAccessibleWrap.cpp
@@ -0,0 +1,145 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "ApplicationAccessibleWrap.h"
+
+#include "nsMai.h"
+#include "nsAccessibilityService.h"
+
+#include <gtk/gtk.h>
+#include "atk/atkobject.h"
+
+using namespace mozilla;
+using namespace mozilla::a11y;
+
+// ApplicationAccessibleWrap
+
+ApplicationAccessibleWrap::ApplicationAccessibleWrap() = default;
+
+ApplicationAccessibleWrap::~ApplicationAccessibleWrap() {
+  AccessibleWrap::ShutdownAtkObject();
+}
+
+gboolean toplevel_event_watcher(GSignalInvocationHint* ihint,
+                                guint n_param_values,
+                                const GValue* param_values, gpointer data) {
+  static GQuark sQuark_gecko_acc_obj = 0;
+
+  if (!sQuark_gecko_acc_obj) {
+    sQuark_gecko_acc_obj = g_quark_from_static_string("GeckoAccObj");
+  }
+
+  if (nsAccessibilityService::IsShutdown()) return TRUE;
+
+  GObject* object =
+      reinterpret_cast<GObject*>(g_value_get_object(param_values));
+  if (!GTK_IS_WINDOW(object)) return TRUE;
+
+  AtkObject* child = gtk_widget_get_accessible(GTK_WIDGET(object));
+  AtkRole role = atk_object_get_role(child);
+
+  // GTK native dialog
+  if (!IS_MAI_OBJECT(child) &&
+      (role == ATK_ROLE_DIALOG || role == ATK_ROLE_FILE_CHOOSER ||
+       role == ATK_ROLE_COLOR_CHOOSER || role == ATK_ROLE_FONT_CHOOSER)) {
+    if (data == reinterpret_cast<gpointer>(nsIAccessibleEvent::EVENT_SHOW)) {
+      // Attach the dialog accessible to app accessible tree
+      LocalAccessible* windowAcc =
+          GetAccService()->AddNativeRootAccessible(child);
+      g_object_set_qdata(G_OBJECT(child), sQuark_gecko_acc_obj,
+                         reinterpret_cast<gpointer>(windowAcc));
+
+    } else {
+      // Deattach the dialog accessible
+      LocalAccessible* windowAcc = reinterpret_cast<LocalAccessible*>(
+          g_object_get_qdata(G_OBJECT(child), sQuark_gecko_acc_obj));
+      if (windowAcc) {
+        GetAccService()->RemoveNativeRootAccessible(windowAcc);
+        g_object_set_qdata(G_OBJECT(child), sQuark_gecko_acc_obj, nullptr);
+      }
+    }
+  }
+
+  return TRUE;
+}
+
+ENameValueFlag ApplicationAccessibleWrap::Name(nsString& aName) const {
+  // ATK doesn't provide a way to obtain an application name (for example,
+  // Firefox or Thunderbird) like IA2 does. Thus let's return an application
+  // name as accessible name that was used to get a branding name (for example,
+  // Minefield aka nightly Firefox or Daily aka nightly Thunderbird).
+  AppName(aName);
+  return eNameOK;
+}
+
+void ApplicationAccessibleWrap::GetNativeInterface(void** aOutAccessible) {
+  *aOutAccessible = nullptr;
+
+  if (!mAtkObject) {
+    mAtkObject = reinterpret_cast<AtkObject*>(
+        g_object_new(MAI_TYPE_ATK_OBJECT, nullptr));
+    if (!mAtkObject) return;
+
+    atk_object_initialize(mAtkObject, static_cast<Accessible*>(this));
+    mAtkObject->role = ATK_ROLE_INVALID;
+    mAtkObject->layer = ATK_LAYER_INVALID;
+  }
+
+  *aOutAccessible = mAtkObject;
+}
+
+struct AtkRootAccessibleAddedEvent {
+  AtkObject* app_accessible;
+  AtkObject* root_accessible;
+  uint32_t index;
+};
+
+gboolean fireRootAccessibleAddedCB(gpointer data) {
+  AtkRootAccessibleAddedEvent* eventData = (AtkRootAccessibleAddedEvent*)data;
+  g_signal_emit_by_name(eventData->app_accessible, "children_changed::add",
+                        eventData->index, eventData->root_accessible, nullptr);
+  g_object_unref(eventData->app_accessible);
+  g_object_unref(eventData->root_accessible);
+  free(data);
+
+  return FALSE;
+}
+
+bool ApplicationAccessibleWrap::InsertChildAt(uint32_t aIdx,
+                                              LocalAccessible* aChild) {
+  if (!ApplicationAccessible::InsertChildAt(aIdx, aChild)) return false;
+
+  AtkObject* atkAccessible = AccessibleWrap::GetAtkObject(aChild);
+  atk_object_set_parent(atkAccessible, mAtkObject);
+
+  uint32_t count = mChildren.Length();
+
+  // Emit children_changed::add in a timeout
+  // to make sure aRootAccWrap is fully initialized.
+  AtkRootAccessibleAddedEvent* eventData =
+      (AtkRootAccessibleAddedEvent*)malloc(sizeof(AtkRootAccessibleAddedEvent));
+  if (eventData) {
+    eventData->app_accessible = mAtkObject;
+    eventData->root_accessible = atkAccessible;
+    eventData->index = count - 1;
+    g_object_ref(mAtkObject);
+    g_object_ref(atkAccessible);
+    g_timeout_add(0, fireRootAccessibleAddedCB, eventData);
+  }
+
+  return true;
+}
+
+bool ApplicationAccessibleWrap::RemoveChild(LocalAccessible* aChild) {
+  int32_t index = aChild->IndexInParent();
+
+  AtkObject* atkAccessible = AccessibleWrap::GetAtkObject(aChild);
+  atk_object_set_parent(atkAccessible, nullptr);
+  g_signal_emit_by_name(mAtkObject, "children_changed::remove", index,
+                        atkAccessible, nullptr);
+
+  return ApplicationAccessible::RemoveChild(aChild);
+}