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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
#include "ApplicationAccessible.h"
#include "LocalAccessible-inl.h"
#include "nsAccessibilityService.h"
#include "Relation.h"
#include "mozilla/a11y/Role.h"
#include "States.h"
#include "nsServiceManagerUtils.h"
#include "mozilla/dom/Document.h"
#include "mozilla/Components.h"
#include "nsGlobalWindowOuter.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");
}
////////////////////////////////////////////////////////////////////////////////
// nsIAccessible
ENameValueFlag ApplicationAccessible::Name(nsString& aName) const {
aName.Truncate();
nsCOMPtr<nsIStringBundleService> bundleService =
mozilla::components::StringBundle::Service();
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;
nsAutoString appName;
rv = bundle->GetStringFromName("brandShortName", 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) const {
aDescription.Truncate();
}
void ApplicationAccessible::Value(nsString& aValue) const { aValue.Truncate(); }
uint64_t ApplicationAccessible::State() {
return IsDefunct() ? states::DEFUNCT : 0;
}
already_AddRefed<AccAttributes> ApplicationAccessible::NativeAttributes() {
RefPtr<AccAttributes> attributes = new AccAttributes();
return attributes.forget();
}
GroupPos ApplicationAccessible::GroupPosition() { return GroupPos(); }
LocalAccessible* ApplicationAccessible::LocalChildAtPoint(
int32_t aX, int32_t aY, EWhichChildAtPoint aWhichChild) {
return nullptr;
}
Accessible* ApplicationAccessible::FocusedChild() {
LocalAccessible* focus = FocusMgr()->FocusedLocalAccessible();
if (focus && focus->LocalParent() == this) {
return focus;
}
return nullptr;
}
Relation ApplicationAccessible::RelationByType(
RelationType aRelationType) const {
return Relation();
}
mozilla::LayoutDeviceIntRect ApplicationAccessible::Bounds() const {
return mozilla::LayoutDeviceIntRect();
}
nsRect ApplicationAccessible::BoundsInAppUnits() const { return nsRect(); }
////////////////////////////////////////////////////////////////////////////////
// LocalAccessible public methods
void ApplicationAccessible::Shutdown() { mAppInfo = nullptr; }
void ApplicationAccessible::ApplyARIAState(uint64_t* aState) const {}
role ApplicationAccessible::NativeRole() const { return roles::APP_ROOT; }
uint64_t ApplicationAccessible::NativeState() const { 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.
nsGlobalWindowOuter::OuterWindowByIdTable* windowsById =
nsGlobalWindowOuter::GetWindowsTable();
if (!windowsById) {
return;
}
for (const auto& window : windowsById->Values()) {
if (window->GetDocShell() && window->IsRootOuterWindow()) {
if (RefPtr<dom::Document> docNode = window->GetExtantDoc()) {
GetAccService()->GetDocAccessible(docNode); // ensure creation
}
}
}
}
LocalAccessible* ApplicationAccessible::GetSiblingAtOffset(
int32_t aOffset, nsresult* aError) const {
if (aError) *aError = NS_OK; // fail peacefully
return nullptr;
}