synchronous_compositor_client.h revision 7dbb3d5cf0c15f500944d211057644d6a2f37371 
1// Copyright 2013 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_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_
6#define CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_
7
8#include "base/basictypes.h"
9#include "ui/gfx/vector2d_f.h"
10
11namespace content {
12
13class SynchronousCompositor;
14
15class SynchronousCompositorClient {
16 public:
17  // Indication to the client that |compositor| is now initialized on the
18  // compositor thread, and open for business.
19  virtual void DidInitializeCompositor(SynchronousCompositor* compositor) = 0;
20
21  // Indication to the client that |compositor| is going out of scope, and
22  // must not be accessed within or after this call.
23  // NOTE if the client goes away before the compositor it must call
24  // SynchronousCompositor::SetClient(NULL) to release the back pointer.
25  virtual void DidDestroyCompositor(SynchronousCompositor* compositor) = 0;
26
27  // See LayerScrollOffsetDelegate for details.
28  virtual void SetTotalRootLayerScrollOffset(gfx::Vector2dF new_value) = 0;
29  virtual gfx::Vector2dF GetTotalRootLayerScrollOffset() = 0;
30  virtual void DidOverscroll(gfx::Vector2dF accumulated_overscroll,
31                             gfx::Vector2dF current_fling_velocity) = 0;
32
33  // When true, should periodically call
34  // SynchronousCompositorOutputSurface::DemandDrawHw. Note that this value
35  // can change inside DemandDrawHw call.
36  virtual void SetContinuousInvalidate(bool invalidate) = 0;
37
38 protected:
39  SynchronousCompositorClient() {}
40  virtual ~SynchronousCompositorClient() {}
41
42 private:
43  DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorClient);
44};
45
46}  // namespace content
47
48#endif  // CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_
49