/*
 *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */


#ifndef PEERCONNECTION_SAMPLES_CLIENT_LINUX_MAIN_WND_H_
#define PEERCONNECTION_SAMPLES_CLIENT_LINUX_MAIN_WND_H_

// Forward declarations.
typedef struct _GtkWidget GtkWidget;
typedef union _GdkEvent GdkEvent;
typedef struct _GdkEventKey GdkEventKey;
typedef struct _GtkTreeView GtkTreeView;
typedef struct _GtkTreePath GtkTreePath;
typedef struct _GtkTreeViewColumn GtkTreeViewColumn;

// Implements the main UI of the peer connection client.
// This is functionally equivalent to the MainWnd class in the Windows
// implementation.
class GtkMainWnd {
 public:
  GtkMainWnd();
  ~GtkMainWnd();

  // Creates and shows the main window with the |Connect UI| enabled.
  bool Create();

  // Destroys the window.  When the window is destroyed, it ends the
  // main message loop.
  bool Destroy();

  // Returns true iff the main window exists.
  bool IsWindow();

  // Callback for when the main window is destroyed.
  void OnDestroyed(GtkWidget* widget, GdkEvent* event);

  // Callback for when the user clicks the "Connect" button.
  void OnClicked(GtkWidget* widget);

  // Callback for keystrokes.  Used to capture Esc and Return.
  void OnKeyPress(GtkWidget* widget, GdkEventKey* key);

  // Callback when the user double clicks a peer in order to initiate a
  // connection.
  void OnRowActivated(GtkTreeView* tree_view, GtkTreePath* path,
                      GtkTreeViewColumn* column);

 protected:
  // Switches to the Connect UI.  The Connect UI must not already be active.
  void SwitchToConnectUI();

  // Switches to a list view that shows a list of currently connected peers.
  // TODO(tommi): Support providing a peer list.
  void SwitchToPeerList(/*const Peers& peers*/);

  // Switches to the video streaming UI.
  void SwitchToStreamingUI();

  GtkWidget* window_;  // Our main window.
  GtkWidget* draw_area_;  // The drawing surface for rendering video streams.
  GtkWidget* vbox_;  // Container for the Connect UI.
  GtkWidget* peer_list_;  // The list of peers.
};

#endif  // PEERCONNECTION_SAMPLES_CLIENT_LINUX_MAIN_WND_H_