1/*
2 * libjingle
3 * Copyright 2012 Google Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 *  1. Redistributions of source code must retain the above copyright notice,
9 *     this list of conditions and the following disclaimer.
10 *  2. Redistributions in binary form must reproduce the above copyright notice,
11 *     this list of conditions and the following disclaimer in the documentation
12 *     and/or other materials provided with the distribution.
13 *  3. The name of the author may not be used to endorse or promote products
14 *     derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
19 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
21 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
22 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
23 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
24 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
25 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#ifndef TALK_MEDIA_BASE_FAKESCREENCAPTURERFACTORY_H_
29#define TALK_MEDIA_BASE_FAKESCREENCAPTURERFACTORY_H_
30
31#include "talk/media/base/fakevideocapturer.h"
32#include "talk/media/base/videocapturerfactory.h"
33
34namespace cricket {
35
36class FakeScreenCapturerFactory
37    : public cricket::ScreenCapturerFactory,
38      public sigslot::has_slots<> {
39 public:
40  FakeScreenCapturerFactory()
41      : window_capturer_(NULL),
42        capture_state_(cricket::CS_STOPPED) {}
43
44  virtual cricket::VideoCapturer* Create(const ScreencastId& window) {
45    if (window_capturer_ != NULL) {
46      return NULL;
47    }
48    window_capturer_ = new cricket::FakeVideoCapturer;
49    window_capturer_->SignalDestroyed.connect(
50        this,
51        &FakeScreenCapturerFactory::OnWindowCapturerDestroyed);
52    window_capturer_->SignalStateChange.connect(
53        this,
54        &FakeScreenCapturerFactory::OnStateChange);
55    return window_capturer_;
56  }
57
58  cricket::FakeVideoCapturer* window_capturer() { return window_capturer_; }
59
60  cricket::CaptureState capture_state() { return capture_state_; }
61
62 private:
63  void OnWindowCapturerDestroyed(cricket::FakeVideoCapturer* capturer) {
64    if (capturer == window_capturer_) {
65      window_capturer_ = NULL;
66    }
67  }
68  void OnStateChange(cricket::VideoCapturer*, cricket::CaptureState state) {
69    capture_state_ = state;
70  }
71
72  cricket::FakeVideoCapturer* window_capturer_;
73  cricket::CaptureState capture_state_;
74};
75
76}  // namespace cricket
77
78#endif  // TALK_MEDIA_BASE_FAKESCREENCAPTURERFACTORY_H_
79