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Diffstat (limited to '')
-rw-r--r-- | accessible/generic/ApplicationAccessible.cpp | 139 |
1 files changed, 139 insertions, 0 deletions
diff --git a/accessible/generic/ApplicationAccessible.cpp b/accessible/generic/ApplicationAccessible.cpp new file mode 100644 index 0000000000..7a3fe07869 --- /dev/null +++ b/accessible/generic/ApplicationAccessible.cpp @@ -0,0 +1,139 @@ +/* -*- 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 "nsServiceManagerUtils.h" +#include "mozilla/dom/Document.h" +#include "mozilla/Services.h" +#include "nsGlobalWindow.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::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; + + 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) { + aDescription.Truncate(); +} + +void ApplicationAccessible::Value(nsString& aValue) const { 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) const { + return Relation(); +} + +nsIntRect ApplicationAccessible::Bounds() const { return nsIntRect(); } + +nsRect ApplicationAccessible::BoundsInAppUnits() const { return nsRect(); } + +//////////////////////////////////////////////////////////////////////////////// +// Accessible 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 (auto iter = windowsById->Iter(); !iter.Done(); iter.Next()) { + nsGlobalWindowOuter* window = iter.Data(); + if (window->GetDocShell() && window->IsRootOuterWindow()) { + if (RefPtr<dom::Document> docNode = window->GetExtantDoc()) { + GetAccService()->GetDocAccessible(docNode); // ensure creation + } + } + } +} + +Accessible* ApplicationAccessible::GetSiblingAtOffset(int32_t aOffset, + nsresult* aError) const { + if (aError) *aError = NS_OK; // fail peacefully + + return nullptr; +} |