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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CONTENT_RENDERER_TEXT_INPUT_CLIENT_OBSERVER_H_
      6 #define CONTENT_RENDERER_TEXT_INPUT_CLIENT_OBSERVER_H_
      7 
      8 #include "base/basictypes.h"
      9 #include "build/build_config.h"
     10 #include "content/public/renderer/render_view_observer.h"
     11 #include "ui/base/range/range.h"
     12 #include "ui/gfx/point.h"
     13 
     14 namespace WebKit {
     15 class WebView;
     16 }
     17 
     18 namespace content {
     19 
     20 class RenderViewImpl;
     21 
     22 // This is the renderer-side message filter that generates the replies for the
     23 // messages sent by the TextInputClientMac. See
     24 // content/browser/renderer_host/text_input_client_mac.h for more information.
     25 class TextInputClientObserver : public RenderViewObserver {
     26  public:
     27   explicit TextInputClientObserver(RenderViewImpl* render_view);
     28   virtual ~TextInputClientObserver();
     29 
     30   // RenderViewObserver overrides:
     31   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
     32 
     33  private:
     34   // Returns the WebView of the RenderView.
     35   WebKit::WebView* webview();
     36 
     37   // IPC Message handlers:
     38   void OnCharacterIndexForPoint(gfx::Point point);
     39   void OnFirstRectForCharacterRange(ui::Range range);
     40   void OnStringForRange(ui::Range range);
     41 
     42   RenderViewImpl* const render_view_impl_;
     43 
     44   DISALLOW_COPY_AND_ASSIGN(TextInputClientObserver);
     45 };
     46 
     47 }  // namespace content
     48 
     49 #endif  // CONTENT_RENDERER_TEXT_INPUT_CLIENT_OBSERVER_H_
     50