Migrate accessibility from RenderView to RenderFrame.

content/renderer/render_frame_impl.h

 // Copyright 2013 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_RENDERER_RENDER_FRAME_IMPL_H_
 #define CONTENT_RENDERER_RENDER_FRAME_IMPL_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/gtest_prod_util.h"
 #include "base/id_map.h"
 #include "base/memory/weak_ptr.h"
 #include "base/observer_list.h"
 #include "base/process/process_handle.h"
+#include "content/common/accessibility_mode_enums.h"
 #include "content/public/common/javascript_message_type.h"
 #include "content/public/common/referrer.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/renderer/media/webmediaplayer_delegate.h"
 #include "content/renderer/render_frame_proxy.h"
 #include "content/renderer/renderer_webcookiejar_impl.h"
 #include "ipc/ipc_message.h"
+#include "third_party/WebKit/public/web/WebAXObject.h"
 #include "third_party/WebKit/public/web/WebDataSource.h"
 #include "third_party/WebKit/public/web/WebFrameClient.h"
 #include "third_party/WebKit/public/web/WebHistoryCommitType.h"
 #include "ui/gfx/range/range.h"
 
 class TransportDIB;
 struct FrameMsg_BuffersSwapped_Params;
 struct FrameMsg_CompositorFrameSwapped_Params;
 struct FrameMsg_Navigate_Params;
 
@@ skipping 16 matching lines @@
 class Range;
 class Rect;
 }
 
 namespace content {
 
 class ChildFrameCompositingHelper;
 class MediaStreamClient;
 class NotificationProvider;
 class PepperPluginInstanceImpl;
+class RendererAccessibility;
 class RendererPpapiHost;
 class RenderFrameObserver;
 class RenderViewImpl;
 class RenderWidget;
 class RenderWidgetFullscreenPepper;
 struct CustomContextMenuContext;
 
 class CONTENT_EXPORT RenderFrameImpl
     : public RenderFrame,
       NON_EXPORTED_BASE(public blink::WebFrameClient),
@@ skipping 56 matching lines @@
   // Start/Stop loading notifications.
   // TODO(nasko): Those are page-level methods at this time and come from
   // WebViewClient. We should move them to be WebFrameClient calls and put
   // logic in the browser side to balance starts/stops.
   // |to_different_document| will be true unless the load is a fragment
   // navigation, or triggered by history.pushState/replaceState.
   virtual void didStartLoading(bool to_different_document);
   virtual void didStopLoading();
   virtual void didChangeLoadProgress(double load_progress);
 
+  AccessibilityMode accessibility_mode() {
+    return accessibility_mode_;
+  }
+
+  RendererAccessibility* renderer_accessibility() {
+    return renderer_accessibility_;
+  }
+
+  void HandleWebAccessibilityEvent(const blink::WebAXObject& obj,
+                                   blink::WebAXEvent event);
+
+  // TODO(dmazzoni): the only reason this is here is to plumb it through to
+  // RendererAccessibility. It should be part of RenderFrameObserver, once
+  // blink has a separate accessibility tree per frame.
+  void FocusedNodeChanged(const blink::WebNode& node);
+
 #if defined(ENABLE_PLUGINS)
   // Notification that a PPAPI plugin has been created.
   void PepperPluginCreated(RendererPpapiHost* host);
 
   // Notifies that |instance| has changed the cursor.
   // This will update the cursor appearance if it is currently over the plugin
   // instance.
   void PepperDidChangeCursor(PepperPluginInstanceImpl* instance,
                              const blink::WebCursorInfo& cursor);
 
@@ skipping 241 matching lines @@
 
   // TODO(nasko): Make all tests in RenderViewImplTest friends and then move
   // this back to private member.
   void OnNavigate(const FrameMsg_Navigate_Params& params);
 
  protected:
   RenderFrameImpl(RenderViewImpl* render_view, int32 routing_id);
 
  private:
   friend class RenderFrameObserver;
+  friend class RendererAccessibilityTest;
   FRIEND_TEST_ALL_PREFIXES(RendererAccessibilityTest,
                            AccessibilityMessagesQueueWhileSwappedOut);
-    FRIEND_TEST_ALL_PREFIXES(RenderFrameImplTest,
+  FRIEND_TEST_ALL_PREFIXES(RenderFrameImplTest,
                            ShouldUpdateSelectionTextFromContextMenuParams);
   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
                            OnExtendSelectionAndDelete);
   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, ReloadWhileSwappedOut);
   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest, SendSwapOutACK);
   FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
                            SetEditableSelectionAndComposition);
+  FRIEND_TEST_ALL_PREFIXES(RenderViewImplTest,
+                           OnSetAccessibilityMode);
 
   typedef std::map<GURL, double> HostZoomLevels;
 
   // Functions to add and remove observers for this object.
   void AddObserver(RenderFrameObserver* observer);
   void RemoveObserver(RenderFrameObserver* observer);
 
   void UpdateURL(blink::WebFrame* frame);
 
   // Gets the focused element. If no such element exists then the element will
@@ skipping 28 matching lines @@
   void OnCSSInsertRequest(const std::string& css);
   void OnJavaScriptExecuteRequest(const base::string16& javascript,
                                   int id,
                                   bool notify_result);
   void OnSetEditableSelectionOffsets(int start, int end);
   void OnSetCompositionFromExistingText(
       int start, int end,
       const std::vector<blink::WebCompositionUnderline>& underlines);
   void OnExtendSelectionAndDelete(int before, int after);
   void OnReload(bool ignore_cache);
+  void OnSetAccessibilityMode(AccessibilityMode new_mode);
 #if defined(OS_MACOSX)
   void OnCopyToFindPboard();
 #endif
 
   // Virtual since overridden by WebTestProxy for layout tests.
   virtual blink::WebNavigationPolicy DecidePolicyForNavigation(
       RenderFrame* render_frame,
       blink::WebFrame* frame,
       blink::WebDataSource::ExtraData* extraData,
       const blink::WebURLRequest& request,
@@ skipping 121 matching lines @@
   // along with the RenderFrame automatically.  This is why we just store weak
   // references.
 
   // Holds a reference to the service which provides desktop notifications.
   NotificationProvider* notification_provider_;
 
   // MediaStreamClient attached to this frame; lazily initialized.
   MediaStreamClient* media_stream_client_;
   blink::WebUserMediaClient* web_user_media_client_;
 
+  // The current accessibility mode.
+  AccessibilityMode accessibility_mode_;
+
+  // Only valid if |accessibility_mode_| is anything other than
+  // AccessibilityModeOff.
+  RendererAccessibility* renderer_accessibility_;
+
   base::WeakPtrFactory<RenderFrameImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_FRAME_IMPL_H_