src/misc/beos_specific.cpp

   1 /*****************************************************************************
   2  * beos_init.cpp: Initialization for BeOS specific features
   3  *****************************************************************************
   4  * Copyright (C) 1999-2001 VideoLAN
   5  * $Id: beos_specific.cpp,v 1.31 2003/05/08 01:05:14 titer Exp $
   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., 59 Temple Place - Suite 330, Boston, MA  02111, 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 #include <vlc/vlc.h>
  37 }
  38
  39 /*****************************************************************************
  40  * The VlcApplication class
  41  *****************************************************************************/
  42 class VlcApplication : public BApplication
  43 {
  44 public:
  45     vlc_object_t *p_this;
  46
  47     VlcApplication(char* );
  48     ~VlcApplication();
  49
  50     virtual void ReadyToRun();
  51     virtual void AboutRequested();
  52     virtual void RefsReceived(BMessage* message);
  53     virtual void MessageReceived(BMessage* message);
  54     virtual bool QuitRequested();
  55
  56 private:
  57     BWindow*     fInterfaceWindow;
  58     BMessage*    fRefsMessage;
  59 };
  60
  61 /*****************************************************************************
  62  * Static vars
  63  *****************************************************************************/
  64
  65 //const uint32 INTERFACE_CREATED = 'ifcr';  /* message sent from interface */
  66 #include "../../modules/gui/beos/MsgVals.h"
  67
  68 extern "C"
  69 {
  70
  71 /*****************************************************************************
  72  * Local prototypes.
  73  *****************************************************************************/
  74 static void AppThread( vlc_object_t *p_appthread );
  75
  76 /*****************************************************************************
  77  * system_Init: create a BApplication object and fill in program path.
  78  *****************************************************************************/
  79 void system_Init( vlc_t *p_this, int *pi_argc, char *ppsz_argv[] )
  80 {
  81     p_this->p_libvlc->p_appthread =
  82             (vlc_object_t *)vlc_object_create( p_this, sizeof(vlc_object_t) );
  83
  84     /* Create the BApplication thread and wait for initialization */
  85     vlc_thread_create( p_this->p_libvlc->p_appthread, "app thread", AppThread,
  86                        VLC_THREAD_PRIORITY_LOW, VLC_TRUE );
  87 }
  88
  89 /*****************************************************************************
  90  * system_Configure: check for system specific configuration options.
  91  *****************************************************************************/
  92 void system_Configure( vlc_t * )
  93 {
  94
  95 }
  96
  97 /*****************************************************************************
  98  * system_End: destroy the BApplication object.
  99  *****************************************************************************/
 100 void system_End( vlc_t *p_this )
 101 {
 102     /* Tell the BApplication to die */
 103     be_app->PostMessage( B_QUIT_REQUESTED );
 104
 105     vlc_thread_join( p_this->p_libvlc->p_appthread );
 106     vlc_object_destroy( p_this->p_libvlc->p_appthread );
 107
 108     free( p_this->p_libvlc->psz_vlcpath );
 109 }
 110
 111 /* following functions are local */
 112
 113 /*****************************************************************************
 114  * AppThread: the BApplication thread.
 115  *****************************************************************************/
 116 static void AppThread( vlc_object_t * p_this )
 117 {
 118     VlcApplication *BeApp = new VlcApplication("application/x-vnd.videolan-vlc");
 119     vlc_object_attach( p_this, p_this->p_vlc );
 120     BeApp->p_this = p_this;
 121     BeApp->Run();
 122     vlc_object_detach( p_this );
 123     delete BeApp;
 124 }
 125
 126 } /* extern "C" */
 127
 128 /*****************************************************************************
 129  * VlcApplication: application constructor
 130  *****************************************************************************/
 131 VlcApplication::VlcApplication( char * psz_mimetype )
 132                :BApplication( psz_mimetype ),
 133                 fInterfaceWindow( NULL ),
 134                 fRefsMessage( NULL )
 135 {
 136     /* Nothing to do, we use the default constructor */
 137 }
 138
 139 /*****************************************************************************
 140  * ~VlcApplication: application destructor
 141  *****************************************************************************/
 142 VlcApplication::~VlcApplication( )
 143 {
 144     /* Nothing to do, we use the default destructor */
 145     delete fRefsMessage;
 146 }
 147
 148 /*****************************************************************************
 149  * AboutRequested: called by the system on B_ABOUT_REQUESTED
 150  *****************************************************************************/
 151 void VlcApplication::AboutRequested( )
 152 {
 153     BAlert *alert;
 154     alert = new BAlert( "VLC " PACKAGE_VERSION,
 155                         "VLC " PACKAGE_VERSION " for BeOS\n\n"
 156                                         "<www.videolan.org>", "OK");
 157     alert->Go( NULL );
 158 }
 159
 160 /*****************************************************************************
 161  * ReadyToRun: called when the BApplication is initialized
 162  *****************************************************************************/
 163 void VlcApplication::ReadyToRun( )
 164 {
 165     BPath path;
 166     app_info info;
 167
 168     /* Get the program path */
 169     be_app->GetAppInfo( &info );
 170     BEntry entry( &info.ref );
 171     entry.GetPath( &path );
 172     path.GetParent( &path );
 173     p_this->p_libvlc->psz_vlcpath = strdup( path.Path() );
 174
 175     /* Tell the main thread we are finished initializing the BApplication */
 176     vlc_thread_ready( p_this );
 177 }
 178
 179 /*****************************************************************************
 180  * RefsReceived: called when files are sent to our application
 181  *               (for example when the user drops fils onto our icon)
 182  *****************************************************************************/
 183 void VlcApplication::RefsReceived(BMessage* message)
 184 {
 185         if (fInterfaceWindow)
 186                 fInterfaceWindow->PostMessage(message);
 187         else {
 188                 delete fRefsMessage;
 189                 fRefsMessage = new BMessage(*message);
 190         }
 191 }
 192
 193 /*****************************************************************************
 194  * MessageReceived: a BeOS applications main message loop
 195  *                  Since VlcApplication and interface are separated
 196  *                  in the vlc binary and the interface plugin,
 197  *                  we use this method to "stick" them together.
 198  *                  The interface will post a message to the global
 199  *                  "be_app" pointer when the interface is created
 200  *                  containing a pointer to the interface window.
 201  *                  In this way, we can keep a B_REFS_RECEIVED message
 202  *                  in store for the interface window to handle later.
 203  *****************************************************************************/
 204 void VlcApplication::MessageReceived(BMessage* message)
 205 {
 206         switch (message->what) {
 207                 case INTERFACE_CREATED: {
 208                         BWindow* interfaceWindow;
 209                         if (message->FindPointer("window", (void**)&interfaceWindow) == B_OK) {
 210                                 fInterfaceWindow = interfaceWindow;
 211                                 if (fRefsMessage) {
 212                                         fInterfaceWindow->PostMessage(fRefsMessage);
 213                                         delete fRefsMessage;
 214                                         fRefsMessage = NULL;
 215                                 }
 216                         }
 217                         break;
 218                 }
 219
 220                 default:
 221                         BApplication::MessageReceived(message);
 222         }
 223 }
 224
 225 bool VlcApplication::QuitRequested()
 226 {
 227     if( CurrentMessage() && CurrentMessage()->FindBool( "shortcut" ) )
 228     {
 229         /* The user hit Alt+Q, don't let the be_app exit without cleaning.
 230            Let the interface do the job */
 231         if( fInterfaceWindow )
 232             fInterfaceWindow->PostMessage( B_QUIT_REQUESTED );
 233         return false;
 234     }
 235
 236     BApplication::QuitRequested();
 237     return true;
 238 }