1 files changed, 93 insertions, 0 deletions
diff --git a/accessible/generic/RootAccessible.h b/accessible/generic/RootAccessible.h
new file mode 100644
index 0000000000..b1e7e42fdb
--- /dev/null
+++ b/accessible/generic/RootAccessible.h
@@ -0,0 +1,93 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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_RootAccessible_h__
+#define mozilla_a11y_RootAccessible_h__
+
+#include "HyperTextAccessible.h"
+#include "DocAccessibleWrap.h"
+
+#include "nsIDOMEventListener.h"
+
+namespace mozilla {
+
+class PresShell;
+
+namespace a11y {
+
+/**
+ * The node at a root of the accessibility tree. This node originated in the
+ * current process. If this is the parent process, RootAccessible is the
+ * Accessible for the top-level window. If this is a content process,
+ * RootAccessible is a top-level content document in this process, which is
+ * either a tab document or an out-of-process iframe.
+ */
+class RootAccessible : public DocAccessibleWrap, public nsIDOMEventListener {
+  NS_DECL_ISUPPORTS_INHERITED
+
+ public:
+  RootAccessible(dom::Document* aDocument, PresShell* aPresShell);
+
+  // nsIDOMEventListener
+  NS_DECL_NSIDOMEVENTLISTENER
+
+  // LocalAccessible
+  virtual void Shutdown() override;
+  virtual mozilla::a11y::ENameValueFlag Name(nsString& aName) const override;
+  virtual Relation RelationByType(RelationType aType) const override;
+  virtual uint64_t NativeState() const override;
+
+  // RootAccessible
+
+  /**
+   * Notify that the sub document presshell was activated.
+   */
+  virtual void DocumentActivated(DocAccessible* aDocument);
+
+  /**
+   * Return the primary remote top level document if any.
+   */
+  RemoteAccessible* GetPrimaryRemoteTopLevelContentDoc() const;
+
+ protected:
+  virtual ~RootAccessible();
+
+  /**
+   * Add/remove DOM event listeners.
+   */
+  virtual nsresult AddEventListeners() override;
+  virtual nsresult RemoveEventListeners() override;
+
+  /**
+   * Process the DOM event.
+   */
+  void ProcessDOMEvent(dom::Event* aDOMEvent, nsINode* aTarget);
+
+  /**
+   * Process "popupshown" event. Used by HandleEvent().
+   */
+  void HandlePopupShownEvent(LocalAccessible* aAccessible);
+
+  /*
+   * Process "popuphiding" event. Used by HandleEvent().
+   */
+  void HandlePopupHidingEvent(nsINode* aNode);
+
+  void HandleTreeRowCountChangedEvent(dom::Event* aEvent,
+                                      XULTreeAccessible* aAccessible);
+  void HandleTreeInvalidatedEvent(dom::Event* aEvent,
+                                  XULTreeAccessible* aAccessible);
+
+  uint32_t GetChromeFlags() const;
+};
+
+inline RootAccessible* LocalAccessible::AsRoot() {
+  return IsRoot() ? static_cast<mozilla::a11y::RootAccessible*>(this) : nullptr;
+}
+
+}  // namespace a11y
+}  // namespace mozilla
+
+#endif