1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/accessible/src/atk/ApplicationAccessibleWrap.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,169 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim: set ts=2 et sw=2 tw=80: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#include "ApplicationAccessibleWrap.h"
1.11 +
1.12 +#include "nsCOMPtr.h"
1.13 +#include "nsMai.h"
1.14 +#include "nsAutoPtr.h"
1.15 +#include "nsAccessibilityService.h"
1.16 +
1.17 +#include <gtk/gtk.h>
1.18 +#include <atk/atk.h>
1.19 +
1.20 +using namespace mozilla;
1.21 +using namespace mozilla::a11y;
1.22 +
1.23 +
1.24 +// ApplicationAccessibleWrap
1.25 +
1.26 +ApplicationAccessibleWrap::ApplicationAccessibleWrap():
1.27 + ApplicationAccessible()
1.28 +{
1.29 +}
1.30 +
1.31 +ApplicationAccessibleWrap::~ApplicationAccessibleWrap()
1.32 +{
1.33 + AccessibleWrap::ShutdownAtkObject();
1.34 +}
1.35 +
1.36 +gboolean
1.37 +toplevel_event_watcher(GSignalInvocationHint* ihint,
1.38 + guint n_param_values,
1.39 + const GValue* param_values,
1.40 + gpointer data)
1.41 +{
1.42 + static GQuark sQuark_gecko_acc_obj = 0;
1.43 +
1.44 + if (!sQuark_gecko_acc_obj)
1.45 + sQuark_gecko_acc_obj = g_quark_from_static_string("GeckoAccObj");
1.46 +
1.47 + if (nsAccessibilityService::IsShutdown())
1.48 + return TRUE;
1.49 +
1.50 + GObject* object = reinterpret_cast<GObject*>(g_value_get_object(param_values));
1.51 + if (!GTK_IS_WINDOW(object))
1.52 + return TRUE;
1.53 +
1.54 + AtkObject* child = gtk_widget_get_accessible(GTK_WIDGET(object));
1.55 +
1.56 + // GTK native dialog
1.57 + if (!IS_MAI_OBJECT(child) &&
1.58 + (atk_object_get_role(child) == ATK_ROLE_DIALOG)) {
1.59 +
1.60 + if (data == reinterpret_cast<gpointer>(nsIAccessibleEvent::EVENT_SHOW)) {
1.61 +
1.62 + // Attach the dialog accessible to app accessible tree
1.63 + Accessible* windowAcc = GetAccService()->AddNativeRootAccessible(child);
1.64 + g_object_set_qdata(G_OBJECT(child), sQuark_gecko_acc_obj,
1.65 + reinterpret_cast<gpointer>(windowAcc));
1.66 +
1.67 + } else {
1.68 +
1.69 + // Deattach the dialog accessible
1.70 + Accessible* windowAcc =
1.71 + reinterpret_cast<Accessible*>
1.72 + (g_object_get_qdata(G_OBJECT(child), sQuark_gecko_acc_obj));
1.73 + if (windowAcc) {
1.74 + GetAccService()->RemoveNativeRootAccessible(windowAcc);
1.75 + g_object_set_qdata(G_OBJECT(child), sQuark_gecko_acc_obj, nullptr);
1.76 + }
1.77 +
1.78 + }
1.79 + }
1.80 +
1.81 + return TRUE;
1.82 +}
1.83 +
1.84 +ENameValueFlag
1.85 +ApplicationAccessibleWrap::Name(nsString& aName)
1.86 +{
1.87 + // ATK doesn't provide a way to obtain an application name (for example,
1.88 + // Firefox or Thunderbird) like IA2 does. Thus let's return an application
1.89 + // name as accessible name that was used to get a branding name (for example,
1.90 + // Minefield aka nightly Firefox or Daily aka nightly Thunderbird).
1.91 + GetAppName(aName);
1.92 + return eNameOK;
1.93 +}
1.94 +
1.95 +NS_IMETHODIMP
1.96 +ApplicationAccessibleWrap::GetNativeInterface(void** aOutAccessible)
1.97 +{
1.98 + *aOutAccessible = nullptr;
1.99 +
1.100 + if (!mAtkObject) {
1.101 + mAtkObject =
1.102 + reinterpret_cast<AtkObject *>
1.103 + (g_object_new(MAI_TYPE_ATK_OBJECT, nullptr));
1.104 + NS_ENSURE_TRUE(mAtkObject, NS_ERROR_OUT_OF_MEMORY);
1.105 +
1.106 + atk_object_initialize(mAtkObject, this);
1.107 + mAtkObject->role = ATK_ROLE_INVALID;
1.108 + mAtkObject->layer = ATK_LAYER_INVALID;
1.109 + }
1.110 +
1.111 + *aOutAccessible = mAtkObject;
1.112 + return NS_OK;
1.113 +}
1.114 +
1.115 +struct AtkRootAccessibleAddedEvent {
1.116 + AtkObject *app_accessible;
1.117 + AtkObject *root_accessible;
1.118 + uint32_t index;
1.119 +};
1.120 +
1.121 +gboolean fireRootAccessibleAddedCB(gpointer data)
1.122 +{
1.123 + AtkRootAccessibleAddedEvent* eventData = (AtkRootAccessibleAddedEvent*)data;
1.124 + g_signal_emit_by_name(eventData->app_accessible, "children_changed::add",
1.125 + eventData->index, eventData->root_accessible, nullptr);
1.126 + g_object_unref(eventData->app_accessible);
1.127 + g_object_unref(eventData->root_accessible);
1.128 + free(data);
1.129 +
1.130 + return FALSE;
1.131 +}
1.132 +
1.133 +bool
1.134 +ApplicationAccessibleWrap::InsertChildAt(uint32_t aIdx, Accessible* aChild)
1.135 +{
1.136 + if (!ApplicationAccessible::InsertChildAt(aIdx, aChild))
1.137 + return false;
1.138 +
1.139 + AtkObject* atkAccessible = AccessibleWrap::GetAtkObject(aChild);
1.140 + atk_object_set_parent(atkAccessible, mAtkObject);
1.141 +
1.142 + uint32_t count = mChildren.Length();
1.143 +
1.144 + // Emit children_changed::add in a timeout
1.145 + // to make sure aRootAccWrap is fully initialized.
1.146 + AtkRootAccessibleAddedEvent* eventData = (AtkRootAccessibleAddedEvent*)
1.147 + malloc(sizeof(AtkRootAccessibleAddedEvent));
1.148 + if (eventData) {
1.149 + eventData->app_accessible = mAtkObject;
1.150 + eventData->root_accessible = atkAccessible;
1.151 + eventData->index = count -1;
1.152 + g_object_ref(mAtkObject);
1.153 + g_object_ref(atkAccessible);
1.154 + g_timeout_add(0, fireRootAccessibleAddedCB, eventData);
1.155 + }
1.156 +
1.157 + return true;
1.158 +}
1.159 +
1.160 +bool
1.161 +ApplicationAccessibleWrap::RemoveChild(Accessible* aChild)
1.162 +{
1.163 + int32_t index = aChild->IndexInParent();
1.164 +
1.165 + AtkObject* atkAccessible = AccessibleWrap::GetAtkObject(aChild);
1.166 + atk_object_set_parent(atkAccessible, nullptr);
1.167 + g_signal_emit_by_name(mAtkObject, "children_changed::remove", index,
1.168 + atkAccessible, nullptr);
1.169 +
1.170 + return ApplicationAccessible::RemoveChild(aChild);
1.171 +}
1.172 +
