synchronous_compositor_client.h revision a1401311d1ab56c4ed0a474bd38c108f75cb0cd9 
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/geometry/size_f.h"
10#include "ui/gfx/vector2d_f.h"
11
12namespace content {
13
14class SynchronousCompositor;
15
16class SynchronousCompositorClient {
17 public:
18  // Indication to the client that |compositor| is now initialized on the
19  // compositor thread, and open for business.
20  virtual void DidInitializeCompositor(SynchronousCompositor* compositor) = 0;
21
22  // Indication to the client that |compositor| is going out of scope, and
23  // must not be accessed within or after this call.
24  // NOTE if the client goes away before the compositor it must call
25  // SynchronousCompositor::SetClient(NULL) to release the back pointer.
26  virtual void DidDestroyCompositor(SynchronousCompositor* compositor) = 0;
27
28  // See LayerScrollOffsetDelegate for details.
29  virtual void SetMaxRootLayerScrollOffset(
30      gfx::Vector2dF max_scroll_offset) = 0;
31  virtual void SetTotalRootLayerScrollOffset(gfx::Vector2dF new_value) = 0;
32  virtual gfx::Vector2dF GetTotalRootLayerScrollOffset() = 0;
33  virtual bool IsExternalFlingActive() const = 0;
34  virtual void SetRootLayerPageScaleFactorAndLimits(
35      float page_scale_factor,
36      float min_page_scale_factor,
37      float max_page_scale_factor) = 0;
38  virtual void SetRootLayerScrollableSize(gfx::SizeF scrollable_size) = 0;
39
40  virtual void DidOverscroll(gfx::Vector2dF accumulated_overscroll,
41                             gfx::Vector2dF latest_overscroll_delta,
42                             gfx::Vector2dF current_fling_velocity) = 0;
43
44  // When true, should periodically call
45  // SynchronousCompositorOutputSurface::DemandDrawHw. Note that this value
46  // can change inside DemandDrawHw call.
47  virtual void SetContinuousInvalidate(bool invalidate) = 0;
48
49  virtual void DidUpdateContent() = 0;
50
51 protected:
52  SynchronousCompositorClient() {}
53  virtual ~SynchronousCompositorClient() {}
54
55 private:
56  DISALLOW_COPY_AND_ASSIGN(SynchronousCompositorClient);
57};
58
59}  // namespace content
60
61#endif  // CONTENT_PUBLIC_BROWSER_ANDROID_SYNCHRONOUS_COMPOSITOR_CLIENT_H_
62