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
29#ifndef PEERCONNECTION_SAMPLES_CLIENT_LINUX_MAIN_WND_H_
30#define PEERCONNECTION_SAMPLES_CLIENT_LINUX_MAIN_WND_H_
31
32#include "talk/examples/peerconnection/client/main_wnd.h"
33#include "talk/examples/peerconnection/client/peer_connection_client.h"
34
35// Forward declarations.
36typedef struct _GtkWidget GtkWidget;
37typedef union _GdkEvent GdkEvent;
38typedef struct _GdkEventKey GdkEventKey;
39typedef struct _GtkTreeView GtkTreeView;
40typedef struct _GtkTreePath GtkTreePath;
41typedef struct _GtkTreeViewColumn GtkTreeViewColumn;
42
43// Implements the main UI of the peer connection client.
44// This is functionally equivalent to the MainWnd class in the Windows
45// implementation.
46class GtkMainWnd : public MainWindow {
47 public:
48  GtkMainWnd(const char* server, int port, bool autoconnect, bool autocall);
49  ~GtkMainWnd();
50
51  virtual void RegisterObserver(MainWndCallback* callback);
52  virtual bool IsWindow();
53  virtual void SwitchToConnectUI();
54  virtual void SwitchToPeerList(const Peers& peers);
55  virtual void SwitchToStreamingUI();
56  virtual void MessageBox(const char* caption, const char* text,
57                          bool is_error);
58  virtual MainWindow::UI current_ui();
59  virtual void StartLocalRenderer(webrtc::VideoTrackInterface* local_video);
60  virtual void StopLocalRenderer();
61  virtual void StartRemoteRenderer(webrtc::VideoTrackInterface* remote_video);
62  virtual void StopRemoteRenderer();
63
64  virtual void QueueUIThreadCallback(int msg_id, void* data);
65
66  // Creates and shows the main window with the |Connect UI| enabled.
67  bool Create();
68
69  // Destroys the window.  When the window is destroyed, it ends the
70  // main message loop.
71  bool Destroy();
72
73  // Callback for when the main window is destroyed.
74  void OnDestroyed(GtkWidget* widget, GdkEvent* event);
75
76  // Callback for when the user clicks the "Connect" button.
77  void OnClicked(GtkWidget* widget);
78
79  // Callback for keystrokes.  Used to capture Esc and Return.
80  void OnKeyPress(GtkWidget* widget, GdkEventKey* key);
81
82  // Callback when the user double clicks a peer in order to initiate a
83  // connection.
84  void OnRowActivated(GtkTreeView* tree_view, GtkTreePath* path,
85                      GtkTreeViewColumn* column);
86
87  void OnRedraw();
88
89 protected:
90  class VideoRenderer : public webrtc::VideoRendererInterface {
91   public:
92    VideoRenderer(GtkMainWnd* main_wnd,
93                  webrtc::VideoTrackInterface* track_to_render);
94    virtual ~VideoRenderer();
95
96    // VideoRendererInterface implementation
97    virtual void SetSize(int width, int height);
98    virtual void RenderFrame(const cricket::VideoFrame* frame);
99
100    const uint8* image() const {
101      return image_.get();
102    }
103
104    int width() const {
105      return width_;
106    }
107
108    int height() const {
109      return height_;
110    }
111
112   protected:
113    rtc::scoped_ptr<uint8[]> image_;
114    int width_;
115    int height_;
116    GtkMainWnd* main_wnd_;
117    rtc::scoped_refptr<webrtc::VideoTrackInterface> rendered_track_;
118  };
119
120 protected:
121  GtkWidget* window_;  // Our main window.
122  GtkWidget* draw_area_;  // The drawing surface for rendering video streams.
123  GtkWidget* vbox_;  // Container for the Connect UI.
124  GtkWidget* server_edit_;
125  GtkWidget* port_edit_;
126  GtkWidget* peer_list_;  // The list of peers.
127  MainWndCallback* callback_;
128  std::string server_;
129  std::string port_;
130  bool autoconnect_;
131  bool autocall_;
132  rtc::scoped_ptr<VideoRenderer> local_renderer_;
133  rtc::scoped_ptr<VideoRenderer> remote_renderer_;
134  rtc::scoped_ptr<uint8> draw_buffer_;
135  int draw_buffer_size_;
136};
137
138#endif  // PEERCONNECTION_SAMPLES_CLIENT_LINUX_MAIN_WND_H_
139