src/misc/beos_specific.cpp

   1 /*****************************************************************************
   2  * beos_init.cpp: Initialization for BeOS specific features
   3  *****************************************************************************
   4  * Copyright (C) 1999-2004 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Jean-Marc Dressler <polux@via.ecp.fr>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23 #include <Application.h>
  24 #include <Roster.h>
  25 #include <Path.h>
  26 #include <Alert.h>
  27 #include <Message.h>
  28 #include <Window.h>
  29
  30 #include <stdio.h>
  31 #include <string.h> /* strdup() */
  32 #include <malloc.h> /* free() */
  33
  34 extern "C"
  35 {
  36 #ifdef HAVE_CONFIG_H
  37 # include "config.h"
  38 #endif
  39
  40 #include <vlc_common.h>
  41 #include "../libvlc.h"
  42 }
  43
  44 /*****************************************************************************
  45  * The VlcApplication class
  46  *****************************************************************************/
  47 class VlcApplication : public BApplication
  48 {
  49 public:
  50     vlc_object_t *p_this;
  51
  52     VlcApplication(char* );
  53     ~VlcApplication();
  54
  55     virtual void ReadyToRun();
  56     virtual void AboutRequested();
  57     virtual void RefsReceived(BMessage* message);
  58     virtual void MessageReceived(BMessage* message);
  59     virtual bool QuitRequested();
  60
  61 private:
  62     BWindow*     fInterfaceWindow;
  63     BMessage*    fRefsMessage;
  64     bool         fReadyToQuit;
  65 };
  66
  67 /*****************************************************************************
  68  * Static vars
  69  *****************************************************************************/
  70
  71 #include "../../modules/gui/beos/MsgVals.h"
  72 #define REALLY_QUIT 'requ'
  73
  74 static vlc_object_t *p_appthread;
  75
  76 extern "C"
  77 {
  78
  79 /*****************************************************************************
  80  * Local prototypes.
  81  *****************************************************************************/
  82 static void* AppThread( vlc_object_t *p_appthread );
  83
  84 /*****************************************************************************
  85  * system_Init: create a BApplication object and fill in program path.
  86  *****************************************************************************/
  87 void system_Init( libvlc_int_t *p_this, int *pi_argc, const char *ppsz_argv[] )
  88 {
  89     p_appthread =
  90             (vlc_object_t *)vlc_object_create( p_this, sizeof(vlc_object_t) );
  91
  92     /* Create the BApplication thread and wait for initialization */
  93     vlc_thread_create( p_appthread, "app thread", AppThread,
  94                        VLC_THREAD_PRIORITY_LOW, true );
  95 }
  96
  97 /*****************************************************************************
  98  * system_Configure: check for system specific configuration options.
  99  *****************************************************************************/
 100 void system_Configure( libvlc_int_t *, int *pi_argc, const char *ppsz_argv[] )
 101 {
 102 }
 103
 104 /*****************************************************************************
 105  * system_End: destroy the BApplication object.
 106  *****************************************************************************/
 107 void system_End( libvlc_int_t *p_this )
 108 {
 109     /* Tell the BApplication to die */
 110     be_app->PostMessage( REALLY_QUIT );
 111
 112     vlc_thread_join( p_appthread );
 113     vlc_object_release( p_appthread );
 114
 115     free( psz_vlcpath );
 116 }
 117
 118 /* following functions are local */
 119
 120 /*****************************************************************************
 121  * AppThread: the BApplication thread.
 122  *****************************************************************************/
 123 static void* AppThread( vlc_object_t * p_this )
 124 {
 125     int canc = vlc_savecancel ();
 126     VlcApplication * BeApp =
 127         new VlcApplication("application/x-vnd.videolan-vlc");
 128     vlc_object_attach( p_this, p_this->p_libvlc );
 129     BeApp->p_this = p_this;
 130     BeApp->Run();
 131     vlc_object_detach( p_this );
 132     delete BeApp;
 133     vlc_restorecancel (canc);
 134     return NULL;
 135 }
 136
 137 } /* extern "C" */
 138
 139 /*****************************************************************************
 140  * VlcApplication: application constructor
 141  *****************************************************************************/
 142 VlcApplication::VlcApplication( char * psz_mimetype )
 143                :BApplication( psz_mimetype ),
 144                 fInterfaceWindow( NULL ),
 145                 fRefsMessage( NULL ),
 146                 fReadyToQuit( false )
 147 {
 148     /* Nothing to do, we use the default constructor */
 149 }
 150
 151 /*****************************************************************************
 152  * ~VlcApplication: application destructor
 153  *****************************************************************************/
 154 VlcApplication::~VlcApplication( )
 155 {
 156     /* Nothing to do, we use the default destructor */
 157     delete fRefsMessage;
 158 }
 159
 160 /*****************************************************************************
 161  * AboutRequested: called by the system on B_ABOUT_REQUESTED
 162  *****************************************************************************/
 163 void VlcApplication::AboutRequested( )
 164 {
 165     BAlert *alert;
 166     alert = new BAlert( "VLC " PACKAGE_VERSION,
 167                         "VLC " PACKAGE_VERSION " for BeOS\n\n"
 168                                         "<www.videolan.org>", "OK");
 169     alert->Go( NULL );
 170 }
 171
 172 /*****************************************************************************
 173  * ReadyToRun: called when the BApplication is initialized
 174  *****************************************************************************/
 175 void VlcApplication::ReadyToRun( )
 176 {
 177     BPath path;
 178     app_info info;
 179
 180     /* Get the program path */
 181     be_app->GetAppInfo( &info );
 182     BEntry entry( &info.ref );
 183     entry.GetPath( &path );
 184     path.GetParent( &path );
 185     psz_vlcpath = strdup( path.Path() );
 186
 187     /* Tell the main thread we are finished initializing the BApplication */
 188     vlc_thread_ready( p_this );
 189 }
 190
 191 /*****************************************************************************
 192  * RefsReceived: called when files are sent to our application
 193  *               (for example when the user drops fils onto our icon)
 194  *****************************************************************************/
 195 void VlcApplication::RefsReceived(BMessage* message)
 196 {
 197     if (fInterfaceWindow)
 198         fInterfaceWindow->PostMessage(message);
 199     else {
 200         delete fRefsMessage;
 201         fRefsMessage = new BMessage(*message);
 202     }
 203 }
 204
 205 /*****************************************************************************
 206  * MessageReceived: a BeOS applications main message loop
 207  *                  Since VlcApplication and interface are separated
 208  *                  in the vlc binary and the interface plugin,
 209  *                  we use this method to "stick" them together.
 210  *                  The interface will post a message to the global
 211  *                  "be_app" pointer when the interface is created
 212  *                  containing a pointer to the interface window.
 213  *                  In this way, we can keep a B_REFS_RECEIVED message
 214  *                  in store for the interface window to handle later.
 215  *****************************************************************************/
 216 void VlcApplication::MessageReceived(BMessage* message)
 217 {
 218     switch (message->what) {
 219         case INTERFACE_CREATED: {
 220             BWindow* interfaceWindow;
 221             if (message->FindPointer("window", (void**)&interfaceWindow) == B_OK) {
 222                 fInterfaceWindow = interfaceWindow;
 223                 if (fRefsMessage) {
 224                     fInterfaceWindow->PostMessage(fRefsMessage);
 225                     delete fRefsMessage;
 226                     fRefsMessage = NULL;
 227                 }
 228             }
 229             break;
 230         }
 231
 232         case REALLY_QUIT:
 233             fReadyToQuit = true;
 234             PostMessage( B_QUIT_REQUESTED );
 235             break;
 236
 237         default:
 238             BApplication::MessageReceived(message);
 239     }
 240 }
 241
 242 bool VlcApplication::QuitRequested()
 243 {
 244     if( !fReadyToQuit )
 245     {
 246         libvlc_Quit( p_this->p_libvlc );
 247         return false;
 248     }
 249
 250     BApplication::QuitRequested();
 251     return true;
 252 }