1 files changed, 109 insertions, 0 deletions
diff --git a/accessible/generic/ApplicationAccessible.h b/accessible/generic/ApplicationAccessible.h
new file mode 100644
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+++ b/accessible/generic/ApplicationAccessible.h
@@ -0,0 +1,109 @@
+/* -*- 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/. */
+
+#ifndef mozilla_a11y_ApplicationAccessible_h__
+#define mozilla_a11y_ApplicationAccessible_h__
+
+#include "AccessibleWrap.h"
+
+#include "nsIXULAppInfo.h"
+
+namespace mozilla {
+namespace a11y {
+
+/**
+ * ApplicationAccessible is for the whole application of Mozilla.
+ * Only one instance of ApplicationAccessible exists for one Mozilla instance.
+ * And this one should be created when Mozilla Startup (if accessibility
+ * feature has been enabled) and destroyed when Mozilla Shutdown.
+ *
+ * All the accessibility objects for toplevel windows are direct children of
+ * the ApplicationAccessible instance.
+ */
+
+class ApplicationAccessible : public AccessibleWrap {
+ public:
+  ApplicationAccessible();
+
+  NS_INLINE_DECL_REFCOUNTING_INHERITED(ApplicationAccessible, AccessibleWrap)
+
+  // LocalAccessible
+  virtual void Shutdown() override;
+  virtual LayoutDeviceIntRect Bounds() const override;
+  virtual nsRect BoundsInAppUnits() const override;
+  virtual already_AddRefed<AccAttributes> NativeAttributes() override;
+  virtual GroupPos GroupPosition() override;
+  virtual ENameValueFlag Name(nsString& aName) const override;
+  virtual void ApplyARIAState(uint64_t* aState) const override;
+  virtual void Description(nsString& aDescription) const override;
+  virtual void Value(nsString& aValue) const override;
+  virtual mozilla::a11y::role NativeRole() const override;
+  virtual uint64_t State() override;
+  virtual uint64_t NativeState() const override;
+  virtual Relation RelationByType(RelationType aType) const override;
+
+  virtual LocalAccessible* LocalChildAtPoint(
+      int32_t aX, int32_t aY, EWhichChildAtPoint aWhichChild) override;
+  virtual Accessible* FocusedChild() override;
+
+  // ActionAccessible
+  virtual KeyBinding AccessKey() const override;
+
+  // ApplicationAccessible
+  void Init();
+
+  void AppName(nsAString& aName) const {
+    MOZ_ASSERT(mAppInfo, "no application info");
+
+    if (mAppInfo) {
+      nsAutoCString cname;
+      mAppInfo->GetName(cname);
+      AppendUTF8toUTF16(cname, aName);
+    }
+  }
+
+  void AppVersion(nsAString& aVersion) const {
+    MOZ_ASSERT(mAppInfo, "no application info");
+
+    if (mAppInfo) {
+      nsAutoCString cversion;
+      mAppInfo->GetVersion(cversion);
+      AppendUTF8toUTF16(cversion, aVersion);
+    }
+  }
+
+  void PlatformName(nsAString& aName) const { aName.AssignLiteral("Gecko"); }
+
+  void PlatformVersion(nsAString& aVersion) const {
+    MOZ_ASSERT(mAppInfo, "no application info");
+
+    if (mAppInfo) {
+      nsAutoCString cversion;
+      mAppInfo->GetPlatformVersion(cversion);
+      AppendUTF8toUTF16(cversion, aVersion);
+    }
+  }
+
+ protected:
+  virtual ~ApplicationAccessible() {}
+
+  // LocalAccessible
+  virtual LocalAccessible* GetSiblingAtOffset(
+      int32_t aOffset, nsresult* aError = nullptr) const override;
+
+ private:
+  nsCOMPtr<nsIXULAppInfo> mAppInfo;
+};
+
+inline ApplicationAccessible* LocalAccessible::AsApplication() {
+  return IsApplication() ? static_cast<ApplicationAccessible*>(this) : nullptr;
+}
+
+}  // namespace a11y
+}  // namespace mozilla
+
+#endif