content/renderer/text_input_client_observer.h

   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/gfx/point.h"
  12 #include "ui/gfx/range/range.h"
  13
  14 namespace blink {
  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   ~TextInputClientObserver() override;
  29
  30   // RenderViewObserver overrides:
  31   bool OnMessageReceived(const IPC::Message& message) override;
  32
  33  private:
  34   // Returns the WebView of the RenderView.
  35   blink::WebView* webview();
  36
  37   // IPC Message handlers:
  38   void OnStringAtPoint(gfx::Point point);
  39   void OnCharacterIndexForPoint(gfx::Point point);
  40   void OnFirstRectForCharacterRange(gfx::Range range);
  41   void OnStringForRange(gfx::Range range);
  42
  43   RenderViewImpl* const render_view_impl_;
  44
  45   DISALLOW_COPY_AND_ASSIGN(TextInputClientObserver);
  46 };
  47
  48 }  // namespace content
  49
  50 #endif  // CONTENT_RENDERER_TEXT_INPUT_CLIENT_OBSERVER_H_