synchronous_compositor_client.h revision 4e180b6a0b4720a9b8e9e959a882386f690f08ff 
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 bool IsExternalFlingActive() const = 0;
33  virtual void SetRootLayerPageScaleFactor(float page_scale_factor) = 0;
34  virtual void SetRootLayerScrollableSize(gfx::SizeF scrollable_size) = 0;
35
36  virtual void DidOverscroll(gfx::Vector2dF accumulated_overscroll,
37                             gfx::Vector2dF latest_overscroll_delta,
38                             gfx::Vector2dF current_fling_velocity) = 0;
39
40  // When true, should periodically call
41  // SynchronousCompositorOutputSurface::DemandDrawHw. Note that this value
42  // can change inside DemandDrawHw call.
43  virtual void SetContinuousInvalidate(bool invalidate) = 0;
44
45  virtual void DidUpdateContent() = 0;
46
47 protected:
48  SynchronousCompositorClient() {}
49  virtual ~SynchronousCompositorClient() {}
50
51 private:
52  DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorClient);
53};
54
55}  // namespace content
56
57#endif  // CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_
58