synchronous_compositor_client.h revision 68043e1e95eeb07d5cae7aca370b26518b0867d6 
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 SetMaxRootLayerScrollOffset(
29      gfx::Vector2dF max_scroll_offset) = 0;
30  virtual void SetTotalRootLayerScrollOffset(gfx::Vector2dF new_value) = 0;
31  virtual gfx::Vector2dF GetTotalRootLayerScrollOffset() = 0;
32  virtual void SetRootLayerPageScaleFactor(float page_scale_factor) = 0;
33  virtual void SetRootLayerScrollableSize(gfx::SizeF scrollable_size) = 0;
34
35  virtual void DidOverscroll(gfx::Vector2dF accumulated_overscroll,
36                             gfx::Vector2dF latest_overscroll_delta,
37                             gfx::Vector2dF current_fling_velocity) = 0;
38
39  // When true, should periodically call
40  // SynchronousCompositorOutputSurface::DemandDrawHw. Note that this value
41  // can change inside DemandDrawHw call.
42  virtual void SetContinuousInvalidate(bool invalidate) = 0;
43
44  virtual void DidUpdateContent() = 0;
45
46 protected:
47  SynchronousCompositorClient() {}
48  virtual ~SynchronousCompositorClient() {}
49
50 private:
51  DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorClient);
52};
53
54}  // namespace content
55
56#endif  // CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_
57