This file is indexed.

/usr/include/gtkmm-2.4/gtkmm/socket.h is in libgtkmm-2.4-dev 1:2.24.4-1ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
// -*- c++ -*-
// Generated by gtkmmproc -- DO NOT MODIFY!
#ifndef _GTKMM_SOCKET_H
#define _GTKMM_SOCKET_H


#include <glibmm.h>

/* $Id: socket.hg,v 1.2 2004/02/10 17:35:13 mxpxpod Exp $ */

/* Copyright (C) 1998-2002 The gtkmm Development Team
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <gtkmm/container.h>
#include <gdkmm/types.h>


#ifndef DOXYGEN_SHOULD_SKIP_THIS
typedef struct _GtkSocket GtkSocket;
typedef struct _GtkSocketClass GtkSocketClass;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */


namespace Gtk
{ class Socket_Class; } // namespace Gtk
namespace Gtk
{

/** Container for widgets from other processes.
 * Together with Gtk::Plug, Gtk::Socket provides the ability to embed
 * widgets from one process into another process in a fashion that is
 * transparent to the user. One process creates a Gtk::Socket widget and,
 * passes the that widget's window ID to the other process, which then
 * creates a Gtk::Plug with that window ID. Any widgets contained in the
 * Gtk::Plug then will appear inside the first applications window.
 *
 * The socket's window ID is obtained by using get_id(). Before using this
 * function, the socket must have been realized, and for hence, have been
 * added to its parent.
 *
 * @code
 * Gtk::Socket socket;
 * parent.add(socket);
 *
 * // The following call is only necessary if one of the ancestors of the
 * // socket is not yet visible
 * socket.realize();
 *
 * cout << "The ID of the sockets window is: " << socket.get_id() << endl;
 *
 * @endcode
 *
 * Note that if you pass the window ID of the socket to another process that
 * will create a plug in the socket, you must make sure that the socket
 * widget is not destroyed until that plug is created. Violating this rule
 * will cause unpredictable consequences, the most likely consequence being
 * that the plug will appear as a separate toplevel window. You can check if
 * the plug has been created by examining the plug_window member of the
 * GtkSocket structure returned by gobj(). If this field is non-NULL, then
 * the plug has been successfully created inside of the socket.
 *
 * When gtkmm is notified that the embedded window has been destroyed, then
 * it will destroy the socket as well. You should always, therefore, be
 * prepared for your sockets to be destroyed at any time when the main event
 * loop is running.
 *
 * The communication between a Gtk::Socket and a Gtk::Plug follows the
 * XEmbed protocol. This protocol has also been implemented in other
 * toolkits, e.g. Qt, allowing the same level of integration when embedding
 * a Qt widget in gtkmm or vice versa.
 *
 * @ingroup Widgets
 * @ingroup Containers
 */

class Socket : public Container
{
  public:
#ifndef DOXYGEN_SHOULD_SKIP_THIS
  typedef Socket CppObjectType;
  typedef Socket_Class CppClassType;
  typedef GtkSocket BaseObjectType;
  typedef GtkSocketClass BaseClassType;
#endif /* DOXYGEN_SHOULD_SKIP_THIS */

  virtual ~Socket();

#ifndef DOXYGEN_SHOULD_SKIP_THIS

private:
  friend class Socket_Class;
  static CppClassType socket_class_;

  // noncopyable
  Socket(const Socket&);
  Socket& operator=(const Socket&);

protected:
  explicit Socket(const Glib::ConstructParams& construct_params);
  explicit Socket(GtkSocket* castitem);

#endif /* DOXYGEN_SHOULD_SKIP_THIS */

public:
#ifndef DOXYGEN_SHOULD_SKIP_THIS
  static GType get_type()      G_GNUC_CONST;


  static GType get_base_type() G_GNUC_CONST;
#endif

  ///Provides access to the underlying C GtkObject.
  GtkSocket*       gobj()       { return reinterpret_cast<GtkSocket*>(gobject_); }

  ///Provides access to the underlying C GtkObject.
  const GtkSocket* gobj() const { return reinterpret_cast<GtkSocket*>(gobject_); }


public:
  //C++ methods used to invoke GTK+ virtual functions:

protected:
  //GTK+ Virtual Functions (override these to change behaviour):

  //Default Signal Handlers::
  virtual void on_plug_added();
  virtual bool on_plug_removed();


private:

  
  //This is not available in on Win32.
//This source file will not be compiled,
//and the class will not be registered in wrap_init.h or wrap_init.cc

public:
  Socket();
  

  /** Adds an XEMBED client, such as a Gtk::Plug, to the Gtk::Socket.  The
   * client may be in the same process or in a different process. 
   * 
   * To embed a Gtk::Plug in a Gtk::Socket, you can either create the
   * Gtk::Plug with <tt>gtk_plug_new (0)</tt>, call 
   * Gtk::Plug::get_id() to get the window ID of the plug, and then pass that to the
   * add_id(), or you can call get_id() to get the
   * window ID for the socket, and call Gtk::Plug::new() passing in that
   * ID.
   * 
   * The Gtk::Socket must have already be added into a toplevel window
   * before you can make this call.
   * @param window_id The window ID of a client participating in the XEMBED protocol.
   */
  void add_id(Gdk::NativeWindow window_id);
  
  /** Gets the window ID of a Gtk::Socket widget, which can then
   * be used to create a client embedded inside the socket, for
   * instance with Gtk::Plug::new(). 
   * 
   * The Gtk::Socket must have already be added into a toplevel window 
   * before you can make this call.
   * @return The window ID for the socket.
   */
  Gdk::NativeWindow get_id() const;

  
  /** Retrieves the window of the plug. Use this to check if the plug has
   * been created inside of the socket.
   * 
   * @newin{2,14}
   * @return The window of the plug if available, or <tt>0</tt>.
   */
  Glib::RefPtr<Gdk::Window> get_plug_window();
  
  /** Retrieves the window of the plug. Use this to check if the plug has
   * been created inside of the socket.
   * 
   * @newin{2,14}
   * @return The window of the plug if available, or <tt>0</tt>.
   */
  Glib::RefPtr<const Gdk::Window> get_plug_window() const;

  
  /**
   * @par Prototype:
   * <tt>void on_my_%plug_added()</tt>
   */

  Glib::SignalProxy0< void > signal_plug_added();

  
  /**
   * @par Prototype:
   * <tt>bool on_my_%plug_removed()</tt>
   */

  Glib::SignalProxy0< bool > signal_plug_removed();


};

} // namespace Gtk


namespace Glib
{
  /** A Glib::wrap() method for this object.
   * 
   * @param object The C instance.
   * @param take_copy False if the result should take ownership of the C instance. True if it should take a new copy or ref.
   * @result A C++ instance that wraps this C instance.
   *
   * @relates Gtk::Socket
   */
  Gtk::Socket* wrap(GtkSocket* object, bool take_copy = false);
} //namespace Glib


#endif /* _GTKMM_SOCKET_H */