Revert of Revert of Migrate accessibility from RenderView to RenderFrame.

content/browser/renderer_host/render_widget_host_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 
 #include <deque>
 #include <list>
 #include <map>
 #include <queue>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/process/kill.h"
 #include "base/strings/string16.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
 #include "build/build_config.h"
 #include "cc/resources/shared_bitmap.h"
-#include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/renderer_host/event_with_latency_info.h"
 #include "content/browser/renderer_host/input/input_ack_handler.h"
 #include "content/browser/renderer_host/input/input_router_client.h"
 #include "content/browser/renderer_host/input/synthetic_gesture.h"
 #include "content/browser/renderer_host/input/touch_emulator_client.h"
 #include "content/common/input/input_event_ack_state.h"
 #include "content/common/input/synthetic_gesture_packet.h"
 #include "content/common/view_message_enums.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/common/page_zoom.h"
@@ skipping 33 matching lines @@
 struct WebScreenInfo;
 }
 
 #if defined(OS_ANDROID)
 namespace blink {
 class WebLayer;
 }
 #endif
 
 namespace content {
+class BrowserAccessibilityManager;
 class InputRouter;
 class MockRenderWidgetHost;
 class RenderWidgetHostDelegate;
 class RenderWidgetHostViewBase;
 class SyntheticGestureController;
 class TimeoutMonitor;
 class TouchEmulator;
 class WebCursor;
 struct EditCommand;
 
 // This implements the RenderWidgetHost interface that is exposed to
 // embedders of content, and adds things only visible to content.
 class CONTENT_EXPORT RenderWidgetHostImpl
     : virtual public RenderWidgetHost,
       public InputRouterClient,
       public InputAckHandler,
       public TouchEmulatorClient,
-      public IPC::Listener,
-      public BrowserAccessibilityDelegate {
+      public IPC::Listener {
  public:
   // routing_id can be MSG_ROUTING_NONE, in which case the next available
   // routing id is taken from the RenderProcessHost.
   // If this object outlives |delegate|, DetachDelegate() must be called when
   // |delegate| goes away.
   RenderWidgetHostImpl(RenderWidgetHostDelegate* delegate,
                        RenderProcessHost* process,
                        int routing_id,
                        bool hidden);
   virtual ~RenderWidgetHostImpl();
@@ skipping 24 matching lines @@
   virtual void CopyFromBackingStore(
       const gfx::Rect& src_rect,
       const gfx::Size& accelerated_dst_size,
       const base::Callback<void(bool, const SkBitmap&)>& callback,
       const SkColorType color_type) OVERRIDE;
   virtual bool CanCopyFromBackingStore() OVERRIDE;
 #if defined(OS_ANDROID)
   virtual void LockBackingStore() OVERRIDE;
   virtual void UnlockBackingStore() OVERRIDE;
 #endif
-  virtual void EnableFullAccessibilityMode() OVERRIDE;
-  virtual bool IsFullAccessibilityModeForTesting() OVERRIDE;
-  virtual void EnableTreeOnlyAccessibilityMode() OVERRIDE;
-  virtual bool IsTreeOnlyAccessibilityModeForTesting() OVERRIDE;
   virtual void ForwardMouseEvent(
       const blink::WebMouseEvent& mouse_event) OVERRIDE;
   virtual void ForwardWheelEvent(
       const blink::WebMouseWheelEvent& wheel_event) OVERRIDE;
   virtual void ForwardKeyboardEvent(
       const NativeWebKeyboardEvent& key_event) OVERRIDE;
   virtual const gfx::Vector2d& GetLastScrollOffset() const OVERRIDE;
   virtual RenderProcessHost* GetProcess() const OVERRIDE;
   virtual int GetRoutingID() const OVERRIDE;
   virtual RenderWidgetHostView* GetView() const OVERRIDE;
   virtual bool IsLoading() const OVERRIDE;
   virtual bool IsRenderView() const OVERRIDE;
   virtual void ResizeRectChanged(const gfx::Rect& new_rect) OVERRIDE;
   virtual void RestartHangMonitorTimeout() OVERRIDE;
   virtual void SetIgnoreInputEvents(bool ignore_input_events) OVERRIDE;
   virtual void Stop() OVERRIDE;
   virtual void WasResized() OVERRIDE;
   virtual void AddKeyPressEventCallback(
       const KeyPressEventCallback& callback) OVERRIDE;
   virtual void RemoveKeyPressEventCallback(
       const KeyPressEventCallback& callback) OVERRIDE;
   virtual void AddMouseEventCallback(
       const MouseEventCallback& callback) OVERRIDE;
   virtual void RemoveMouseEventCallback(
       const MouseEventCallback& callback) OVERRIDE;
   virtual void GetWebScreenInfo(blink::WebScreenInfo* result) OVERRIDE;
 
   virtual SkColorType PreferredReadbackFormat() OVERRIDE;
 
-  // BrowserAccessibilityDelegate
-  virtual void AccessibilitySetFocus(int acc_obj_id) OVERRIDE;
-  virtual void AccessibilityDoDefaultAction(int acc_obj_id) OVERRIDE;
-  virtual void AccessibilityShowMenu(int acc_obj_id) OVERRIDE;
-  virtual void AccessibilityScrollToMakeVisible(
-      int acc_obj_id, gfx::Rect subfocus) OVERRIDE;
-  virtual void AccessibilityScrollToPoint(
-      int acc_obj_id, gfx::Point point) OVERRIDE;
-  virtual void AccessibilitySetTextSelection(
-      int acc_obj_id, int start_offset, int end_offset) OVERRIDE;
-  virtual bool AccessibilityViewHasFocus() const OVERRIDE;
-  virtual gfx::Rect AccessibilityGetViewBounds() const OVERRIDE;
-  virtual gfx::Point AccessibilityOriginInScreen(const gfx::Rect& bounds)
-      const OVERRIDE;
-  virtual void AccessibilityHitTest(const gfx::Point& point) OVERRIDE;
-  virtual void AccessibilityFatalError() OVERRIDE;
-
   // Forces redraw in the renderer and when the update reaches the browser
   // grabs snapshot from the compositor. Returns PNG-encoded snapshot.
   void GetSnapshotFromBrowser(
       const base::Callback<void(const unsigned char*,size_t)> callback);
 
   const NativeWebKeyboardEvent* GetLastKeyboardEvent() const;
 
   // Notification that the screen info has changed.
   void NotifyScreenInfoChanged();
 
@@ skipping 184 matching lines @@
   void StartUserGesture();
 
   // Set the RenderView background transparency.
   void SetBackgroundOpaque(bool opaque);
 
   // Notifies the renderer that the next key event is bound to one or more
   // pre-defined edit commands
   void SetEditCommandsForNextKeyEvent(
       const std::vector<EditCommand>& commands);
 
-  // Gets the accessibility mode.
-  AccessibilityMode accessibility_mode() const {
-    return accessibility_mode_;
-  }
-
-  // Adds the given accessibility mode to the current accessibility mode bitmap.
-  void AddAccessibilityMode(AccessibilityMode mode);
-
-  // Removes the given accessibility mode from the current accessibility mode
-  // bitmap, managing the bits that are shared with other modes such that a
-  // bit will only be turned off when all modes that depend on it have been
-  // removed.
-  void RemoveAccessibilityMode(AccessibilityMode mode);
-
-  // Resets the accessibility mode to the default setting in
-  // BrowserStateAccessibilityImpl.
-  void ResetAccessibilityMode();
-
-#if defined(OS_WIN)
-  void SetParentNativeViewAccessible(
-      gfx::NativeViewAccessible accessible_parent);
-  gfx::NativeViewAccessible GetParentNativeViewAccessible() const;
-#endif
-
   // Executes the edit command on the RenderView.
   void ExecuteEditCommand(const std::string& command,
                           const std::string& value);
 
   // Tells the renderer to scroll the currently focused node into rect only if
   // the currently focused node is a Text node (textfield, text area or content
   // editable divs).
   void ScrollFocusedEditableNodeIntoRect(const gfx::Rect& rect);
 
   // Requests the renderer to move the caret selection towards the point.
@@ skipping 81 matching lines @@
       gfx::Size snapshot_size,
       scoped_refptr<base::RefCountedBytes> png_data);
 
   // LatencyComponents generated in the renderer must have component IDs
   // provided to them by the browser process. This function adds the correct
   // component ID where necessary.
   void AddLatencyInfoComponentIds(ui::LatencyInfo* latency_info);
 
   InputRouter* input_router() { return input_router_.get(); }
 
+  // Get the BrowserAccessibilityManager for the root of the frame tree,
+  BrowserAccessibilityManager* GetRootBrowserAccessibilityManager();
+
+  // Get the BrowserAccessibilityManager for the root of the frame tree,
+  // or create it if it doesn't already exist.
+  BrowserAccessibilityManager* GetOrCreateRootBrowserAccessibilityManager();
+
+#if defined(OS_WIN)
+  gfx::NativeViewAccessible GetParentNativeViewAccessible();
+#endif
+
  protected:
   virtual RenderWidgetHostImpl* AsRenderWidgetHostImpl() OVERRIDE;
 
   // Create a LatencyInfo struct with INPUT_EVENT_LATENCY_RWH_COMPONENT
   // component if it is not already in |original|. And if |original| is
   // not NULL, it is also merged into the resulting LatencyInfo.
   ui::LatencyInfo CreateRWHLatencyInfoIfNotExist(
       const ui::LatencyInfo* original, blink::WebInputEvent::Type type);
 
   // Called when we receive a notification indicating that the renderer
@@ skipping 169 matching lines @@
   void WindowSnapshotReachedScreen(int snapshot_id);
 
   void OnSnapshotDataReceived(int snapshot_id,
                               const unsigned char* png,
                               size_t size);
 
   void OnSnapshotDataReceivedAsync(
       int snapshot_id,
       scoped_refptr<base::RefCountedBytes> png_data);
 
-  // Send a message to the renderer process to change the accessibility mode.
-  void SetAccessibilityMode(AccessibilityMode AccessibilityMode);
-
   // Our delegate, which wants to know mainly about keyboard events.
   // It will remain non-NULL until DetachDelegate() is called.
   RenderWidgetHostDelegate* delegate_;
 
   // Created during construction but initialized during Init*(). Therefore, it
   // is guaranteed never to be NULL, but its channel may be NULL if the
   // renderer crashed, so you must always check that.
   RenderProcessHost* process_;
 
   // The ID of the corresponding object in the Renderer Instance.
@@ skipping 51 matching lines @@
   gfx::Size new_auto_size_;
 
   // True if the render widget host should track the render widget's size as
   // opposed to visa versa.
   bool should_auto_resize_;
 
   bool waiting_for_screen_rects_ack_;
   gfx::Rect last_view_screen_rect_;
   gfx::Rect last_window_screen_rect_;
 
-  AccessibilityMode accessibility_mode_;
-
   // Keyboard event listeners.
   std::vector<KeyPressEventCallback> key_press_event_callbacks_;
 
   // Mouse event callbacks.
   std::vector<MouseEventCallback> mouse_event_callbacks_;
 
   // If true, then we should repaint when restoring even if we have a
   // backingstore.  This flag is set to true if we receive a paint message
   // while is_hidden_ to true.  Even though we tell the render widget to hide
   // itself, a paint message could already be in flight at that point.
@@ skipping 82 matching lines @@
   typedef std::map<int,
       base::Callback<void(const unsigned char*, size_t)> > PendingSnapshotMap;
   PendingSnapshotMap pending_browser_snapshots_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_