cc/CCLayerTreeHostClient.h

   1 // Copyright 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 CCLayerTreeHostClient_h
   6 #define CCLayerTreeHostClient_h
   7
   8 #include <wtf/PassOwnPtr.h>
   9
  10 namespace WebKit {
  11 class WebCompositorOutputSurface;
  12 }
  13
  14 namespace cc {
  15 class CCInputHandler;
  16 class IntSize;
  17
  18 class CCLayerTreeHostClient {
  19 public:
  20     virtual void willBeginFrame() = 0;
  21     // Marks finishing compositing-related tasks on the main thread. In threaded mode, this corresponds to didCommit().
  22     virtual void didBeginFrame() = 0;
  23     virtual void animate(double frameBeginTime) = 0;
  24     virtual void layout() = 0;
  25     virtual void applyScrollAndScale(const IntSize& scrollDelta, float pageScale) = 0;
  26     virtual PassOwnPtr<WebKit::WebCompositorOutputSurface> createOutputSurface() = 0;
  27     virtual void didRecreateOutputSurface(bool success) = 0;
  28     virtual PassOwnPtr<CCInputHandler> createInputHandler() = 0;
  29     virtual void willCommit() = 0;
  30     virtual void didCommit() = 0;
  31     virtual void didCommitAndDrawFrame() = 0;
  32     virtual void didCompleteSwapBuffers() = 0;
  33
  34     // Used only in the single-threaded path.
  35     virtual void scheduleComposite() = 0;
  36
  37 protected:
  38     virtual ~CCLayerTreeHostClient() { }
  39 };
  40
  41 }
  42
  43 #endif // CCLayerTreeHostClient_h