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-rw-r--r--accessible/generic/ApplicationAccessible.cpp201
1 files changed, 201 insertions, 0 deletions
diff --git a/accessible/generic/ApplicationAccessible.cpp b/accessible/generic/ApplicationAccessible.cpp
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+++ b/accessible/generic/ApplicationAccessible.cpp
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:expandtab:shiftwidth=2:tabstop=2:
+ */
+/* 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 "ApplicationAccessible.h"
+
+#include "nsAccessibilityService.h"
+#include "nsAccUtils.h"
+#include "Relation.h"
+#include "Role.h"
+#include "States.h"
+
+#include "nsIComponentManager.h"
+#include "nsIDOMDocument.h"
+#include "nsIWindowMediator.h"
+#include "nsServiceManagerUtils.h"
+#include "mozilla/Services.h"
+#include "nsIStringBundle.h"
+
+using namespace mozilla::a11y;
+
+ApplicationAccessible::ApplicationAccessible() :
+ AccessibleWrap(nullptr, nullptr)
+{
+ mType = eApplicationType;
+ mAppInfo = do_GetService("@mozilla.org/xre/app-info;1");
+ MOZ_ASSERT(mAppInfo, "no application info");
+}
+
+NS_IMPL_ISUPPORTS_INHERITED0(ApplicationAccessible, Accessible)
+
+////////////////////////////////////////////////////////////////////////////////
+// nsIAccessible
+
+ENameValueFlag
+ApplicationAccessible::Name(nsString& aName)
+{
+ aName.Truncate();
+
+ nsCOMPtr<nsIStringBundleService> bundleService =
+ mozilla::services::GetStringBundleService();
+
+ NS_ASSERTION(bundleService, "String bundle service must be present!");
+ if (!bundleService)
+ return eNameOK;
+
+ nsCOMPtr<nsIStringBundle> bundle;
+ nsresult rv = bundleService->CreateBundle("chrome://branding/locale/brand.properties",
+ getter_AddRefs(bundle));
+ if (NS_FAILED(rv))
+ return eNameOK;
+
+ nsXPIDLString appName;
+ rv = bundle->GetStringFromName(u"brandShortName",
+ getter_Copies(appName));
+ if (NS_FAILED(rv) || appName.IsEmpty()) {
+ NS_WARNING("brandShortName not found, using default app name");
+ appName.AssignLiteral("Gecko based application");
+ }
+
+ aName.Assign(appName);
+ return eNameOK;
+}
+
+void
+ApplicationAccessible::Description(nsString& aDescription)
+{
+ aDescription.Truncate();
+}
+
+void
+ApplicationAccessible::Value(nsString& aValue)
+{
+ aValue.Truncate();
+}
+
+uint64_t
+ApplicationAccessible::State()
+{
+ return IsDefunct() ? states::DEFUNCT : 0;
+}
+
+already_AddRefed<nsIPersistentProperties>
+ApplicationAccessible::NativeAttributes()
+{
+ return nullptr;
+}
+
+GroupPos
+ApplicationAccessible::GroupPosition()
+{
+ return GroupPos();
+}
+
+Accessible*
+ApplicationAccessible::ChildAtPoint(int32_t aX, int32_t aY,
+ EWhichChildAtPoint aWhichChild)
+{
+ return nullptr;
+}
+
+Accessible*
+ApplicationAccessible::FocusedChild()
+{
+ Accessible* focus = FocusMgr()->FocusedAccessible();
+ if (focus && focus->Parent() == this)
+ return focus;
+
+ return nullptr;
+}
+
+Relation
+ApplicationAccessible::RelationByType(RelationType aRelationType)
+{
+ return Relation();
+}
+
+nsIntRect
+ApplicationAccessible::Bounds() const
+{
+ return nsIntRect();
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Accessible public methods
+
+void
+ApplicationAccessible::Shutdown()
+{
+ mAppInfo = nullptr;
+}
+
+void
+ApplicationAccessible::ApplyARIAState(uint64_t* aState) const
+{
+}
+
+role
+ApplicationAccessible::NativeRole()
+{
+ return roles::APP_ROOT;
+}
+
+uint64_t
+ApplicationAccessible::NativeState()
+{
+ return 0;
+}
+
+KeyBinding
+ApplicationAccessible::AccessKey() const
+{
+ return KeyBinding();
+}
+
+void
+ApplicationAccessible::Init()
+{
+ // Basically children are kept updated by Append/RemoveChild method calls.
+ // However if there are open windows before accessibility was started
+ // then we need to make sure root accessibles for open windows are created so
+ // that all root accessibles are stored in application accessible children
+ // array.
+
+ nsCOMPtr<nsIWindowMediator> windowMediator =
+ do_GetService(NS_WINDOWMEDIATOR_CONTRACTID);
+
+ nsCOMPtr<nsISimpleEnumerator> windowEnumerator;
+ nsresult rv = windowMediator->GetEnumerator(nullptr,
+ getter_AddRefs(windowEnumerator));
+ if (NS_FAILED(rv))
+ return;
+
+ bool hasMore = false;
+ windowEnumerator->HasMoreElements(&hasMore);
+ while (hasMore) {
+ nsCOMPtr<nsISupports> window;
+ windowEnumerator->GetNext(getter_AddRefs(window));
+ nsCOMPtr<nsPIDOMWindowOuter> DOMWindow = do_QueryInterface(window);
+ if (DOMWindow) {
+ nsCOMPtr<nsIDocument> docNode = DOMWindow->GetDoc();
+ if (docNode) {
+ GetAccService()->GetDocAccessible(docNode); // ensure creation
+ }
+ }
+ windowEnumerator->HasMoreElements(&hasMore);
+ }
+}
+
+Accessible*
+ApplicationAccessible::GetSiblingAtOffset(int32_t aOffset,
+ nsresult* aError) const
+{
+ if (aError)
+ *aError = NS_OK; // fail peacefully
+
+ return nullptr;
+}