blob: f576d518b0bc62baf9601994a5f8f4352747b247 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_MEDIA_NATIVE_DESKTOP_MEDIA_LIST_H_
#define CHROME_BROWSER_MEDIA_NATIVE_DESKTOP_MEDIA_LIST_H_
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequenced_task_runner.h"
#include "chrome/browser/media/desktop_media_list.h"
#include "content/public/browser/desktop_media_id.h"
#include "ui/gfx/image/image_skia.h"
namespace webrtc {
class ScreenCapturer;
class WindowCapturer;
}
// Implementation of DesktopMediaList that shows native screens and
// native windows.
class NativeDesktopMediaList : public DesktopMediaList {
public:
// Caller may pass NULL for either of the arguments in case when only some
// types of sources the model should be populated with (e.g. it will only
// contain windows, if |screen_capturer| is NULL).
NativeDesktopMediaList(
scoped_ptr<webrtc::ScreenCapturer> screen_capturer,
scoped_ptr<webrtc::WindowCapturer> window_capturer);
~NativeDesktopMediaList() override;
// DesktopMediaList interface.
void SetUpdatePeriod(base::TimeDelta period) override;
void SetThumbnailSize(const gfx::Size& thumbnail_size) override;
void StartUpdating(DesktopMediaListObserver* observer) override;
int GetSourceCount() const override;
const Source& GetSource(int index) const override;
void SetViewDialogWindowId(content::DesktopMediaID dialog_id) override;
private:
class Worker;
friend class Worker;
// Struct used to represent sources list the model gets from the Worker.
struct SourceDescription {
SourceDescription(content::DesktopMediaID id, const base::string16& name);
content::DesktopMediaID id;
base::string16 name;
};
// Order comparator for sources. Used to sort list of sources.
static bool CompareSources(const SourceDescription& a,
const SourceDescription& b);
// Post a task for the |worker_| to update list of windows and get thumbnails.
void Refresh();
// Called by |worker_| to refresh the model. First it posts tasks for
// OnSourcesList() with the fresh list of sources, then follows with
// OnSourceThumbnail() for each changed thumbnail and then calls
// OnRefreshFinished() at the end.
void OnSourcesList(const std::vector<SourceDescription>& sources);
void OnSourceThumbnail(int index, const gfx::ImageSkia& thumbnail);
void OnRefreshFinished();
// Capturers specified in SetCapturers() and passed to the |worker_| later.
scoped_ptr<webrtc::ScreenCapturer> screen_capturer_;
scoped_ptr<webrtc::WindowCapturer> window_capturer_;
// Time interval between mode updates.
base::TimeDelta update_period_;
// Size of thumbnails generated by the model.
gfx::Size thumbnail_size_;
// ID of the hosting dialog.
content::DesktopMediaID view_dialog_id_;
// The observer passed to StartUpdating().
DesktopMediaListObserver* observer_;
// Task runner used for the |worker_|.
scoped_refptr<base::SequencedTaskRunner> capture_task_runner_;
// An object that does all the work of getting list of sources on a background
// thread (see |capture_task_runner_|). Destroyed on |capture_task_runner_|
// after the model is destroyed.
scoped_ptr<Worker> worker_;
// Current list of sources.
std::vector<Source> sources_;
base::WeakPtrFactory<NativeDesktopMediaList> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(NativeDesktopMediaList);
};
#endif // CHROME_BROWSER_MEDIA_NATIVE_DESKTOP_MEDIA_LIST_H_
|
