Add ICU message format support
[chromium-blink-merge.git] / content / browser / media / capture / aura_window_capture_machine.h
blob0b8d15ca22809263a43500cd570959af822c96f6
1 // Copyright 2015 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.
5 #ifndef CONTENT_BROWSER_MEDIA_CAPTURE_AURA_WINDOW_CAPTURE_MACHINE_H_
6 #define CONTENT_BROWSER_MEDIA_CAPTURE_AURA_WINDOW_CAPTURE_MACHINE_H_
8 #include "base/memory/scoped_ptr.h"
9 #include "base/memory/weak_ptr.h"
10 #include "base/timer/timer.h"
11 #include "media/capture/content/screen_capture_device_core.h"
12 #include "ui/aura/window.h"
13 #include "ui/aura/window_observer.h"
14 #include "ui/base/cursor/cursors_aura.h"
15 #include "ui/compositor/compositor.h"
17 namespace cc {
19 class CopyOutputResult;
21 } // namespace cc
23 namespace content {
25 class PowerSaveBlocker;
26 class ReadbackYUVInterface;
28 class AuraWindowCaptureMachine
29 : public media::VideoCaptureMachine,
30 public aura::WindowObserver,
31 public ui::CompositorObserver,
32 public base::SupportsWeakPtr<AuraWindowCaptureMachine> {
33 public:
34 AuraWindowCaptureMachine();
35 ~AuraWindowCaptureMachine() override;
37 // VideoCaptureMachine overrides.
38 void Start(const scoped_refptr<media::ThreadSafeCaptureOracle>& oracle_proxy,
39 const media::VideoCaptureParams& params,
40 const base::Callback<void(bool)> callback) override;
41 void Stop(const base::Closure& callback) override;
43 // Implements aura::WindowObserver.
44 void OnWindowBoundsChanged(aura::Window* window,
45 const gfx::Rect& old_bounds,
46 const gfx::Rect& new_bounds) override;
47 void OnWindowDestroyed(aura::Window* window) override;
48 void OnWindowAddedToRootWindow(aura::Window* window) override;
49 void OnWindowRemovingFromRootWindow(aura::Window* window,
50 aura::Window* new_root) override;
52 // Implements ui::CompositorObserver.
53 void OnCompositingDidCommit(ui::Compositor* compositor) override {}
54 void OnCompositingStarted(ui::Compositor* compositor,
55 base::TimeTicks start_time) override {}
56 void OnCompositingEnded(ui::Compositor* compositor) override;
57 void OnCompositingAborted(ui::Compositor* compositor) override {}
58 void OnCompositingLockStateChanged(ui::Compositor* compositor) override {}
59 void OnCompositingShuttingDown(ui::Compositor* compositor) override {}
61 // Sets the window to use for capture.
62 void SetWindow(aura::Window* window);
64 private:
65 bool InternalStart(
66 const scoped_refptr<media::ThreadSafeCaptureOracle>& oracle_proxy,
67 const media::VideoCaptureParams& params);
68 void InternalStop(const base::Closure& callback);
70 // Captures a frame.
71 // |dirty| is false for timer polls and true for compositor updates.
72 void Capture(bool dirty);
74 // Update capture size. Must be called on the UI thread.
75 void UpdateCaptureSize();
77 using CaptureFrameCallback =
78 media::ThreadSafeCaptureOracle::CaptureFrameCallback;
80 // Response callback for cc::Layer::RequestCopyOfOutput().
81 void DidCopyOutput(
82 scoped_refptr<media::VideoFrame> video_frame,
83 base::TimeTicks start_time,
84 const CaptureFrameCallback& capture_frame_cb,
85 scoped_ptr<cc::CopyOutputResult> result);
87 // A helper which does the real work for DidCopyOutput. Returns true if
88 // succeeded.
89 bool ProcessCopyOutputResponse(
90 scoped_refptr<media::VideoFrame> video_frame,
91 base::TimeTicks start_time,
92 const CaptureFrameCallback& capture_frame_cb,
93 scoped_ptr<cc::CopyOutputResult> result);
95 // Helper function to update cursor state.
96 // |region_in_frame| defines where the desktop is rendered in the captured
97 // frame.
98 // Returns the current cursor position in captured frame.
99 gfx::Point UpdateCursorState(const gfx::Rect& region_in_frame);
101 // Clears cursor state.
102 void ClearCursorState();
104 // The window associated with the desktop.
105 aura::Window* desktop_window_;
107 // The timer that kicks off period captures.
108 base::Timer timer_;
110 // Whether screen capturing or window capture.
111 bool screen_capture_;
113 // Makes all the decisions about which frames to copy, and how.
114 scoped_refptr<media::ThreadSafeCaptureOracle> oracle_proxy_;
116 // The capture parameters for this capture.
117 media::VideoCaptureParams capture_params_;
119 // YUV readback pipeline.
120 scoped_ptr<content::ReadbackYUVInterface> yuv_readback_pipeline_;
122 // Cursor state.
123 ui::Cursor last_cursor_;
124 gfx::Size desktop_size_when_cursor_last_updated_;
125 gfx::Point cursor_hot_point_;
126 SkBitmap scaled_cursor_bitmap_;
128 // TODO(jiayl): Remove power_save_blocker_ when there is an API to keep the
129 // screen from sleeping for the drive-by web.
130 scoped_ptr<PowerSaveBlocker> power_save_blocker_;
132 DISALLOW_COPY_AND_ASSIGN(AuraWindowCaptureMachine);
135 } // namespace content
137 #endif // CONTENT_BROWSER_MEDIA_CAPTURE_AURA_WINDOW_CAPTURE_MACHINE_H_