git.sesse.net Git - vlc/blob - plugins/gnome/intf_gnome.c

   1 /*****************************************************************************
   2  * intf_gnome.c: Gnome interface
   3  *****************************************************************************
   4  * Copyright (C) 1999, 2000 VideoLAN
   5  *
   6  * Authors:
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  21  *****************************************************************************/
  22
  23 /*****************************************************************************
  24  * Preamble
  25  *****************************************************************************/
  26 #include "defs.h"
  27
  28 #include <errno.h>                                                 /* ENOMEM */
  29 #include <stdlib.h>                                                /* free() */
  30 #include <string.h>                                            /* strerror() */
  31 #include <sys/types.h>                        /* on BSD, uio.h needs types.h */
  32 #include <sys/uio.h>                                          /* for input.h */
  33
  34 #include <X11/Xlib.h>
  35 #include <X11/Xutil.h>
  36 #include <X11/keysym.h>
  37
  38 #include "config.h"
  39 #include "common.h"
  40 #include "threads.h"
  41 #include "mtime.h"
  42 #include "plugins.h"
  43
  44 #include "input.h"
  45 #include "video.h"
  46 #include "video_output.h"
  47
  48 #include "audio_output.h" /* needed for mute */
  49
  50 #include "intf_msg.h"
  51 #include "interface.h"
  52
  53 #include "main.h"
  54
  55 #include <stdio.h>
  56
  57 #include <gnome.h>
  58
  59 #include "intf_gnome_thread.h"
  60 #include "intf_gnome.h"
  61 #include "intf_gnome_interface.h"
  62 #include "intf_gnome_support.h"
  63
  64 /*****************************************************************************
  65  * intf_GnomeCreate: initialize and create window
  66  *****************************************************************************/
  67 int intf_GnomeCreate( intf_thread_t *p_intf )
  68 {
  69     char       *psz_display;
  70
  71     /* Allocate instance and initialize some members */
  72     p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
  73     if( p_intf->p_sys == NULL )
  74     {
  75         intf_ErrMsg("error: %s\n", strerror(ENOMEM));
  76         return( 1 );
  77     }
  78
  79     p_intf->p_sys->p_gnome = malloc( sizeof( gnome_thread_t ) );
  80     if( p_intf->p_sys->p_gnome == NULL )
  81     {
  82         intf_ErrMsg("error: %s\n", strerror(ENOMEM));
  83         free( p_intf->p_sys );
  84         return( 1 );
  85     }
  86
  87     /* Open display, unsing 'vlc_display' or DISPLAY environment variable */
  88     psz_display = XDisplayName( main_GetPszVariable( VOUT_DISPLAY_VAR, NULL ) );
  89     p_intf->p_sys->p_display = XOpenDisplay( psz_display );
  90     if( !p_intf->p_sys->p_display )                                 /* error */
  91     {
  92         intf_ErrMsg("error: can't open display %s\n", psz_display );
  93         free( p_intf->p_sys->p_gnome );
  94         free( p_intf->p_sys );
  95         return( 1 );
  96     }
  97     p_intf->p_sys->i_screen = DefaultScreen( p_intf->p_sys->p_display );
  98
  99     /* Spawn base window - this window will include the video output window */
 100     if( GnomeCreateWindow( p_intf ) )
 101     {
 102         intf_ErrMsg( "error: can't create output window\n" );
 103         XCloseDisplay( p_intf->p_sys->p_display );
 104         free( p_intf->p_sys->p_gnome );
 105         free( p_intf->p_sys );
 106         return( 1 );
 107     }
 108
 109     /* Spawn video output thread */
 110     if( p_main->b_video )
 111     {
 112         p_intf->p_vout = vout_CreateThread( psz_display, p_intf->p_sys->window,
 113                                             p_intf->p_sys->i_width,
 114                                             p_intf->p_sys->i_height, NULL, 0,
 115                                             (void *)&p_intf->p_sys->colormap );
 116
 117         if( p_intf->p_vout == NULL )                                /* error */
 118         {
 119             intf_ErrMsg("error: can't create video output thread\n" );
 120             GnomeDestroyWindow( p_intf );
 121             XCloseDisplay( p_intf->p_sys->p_display );
 122             free( p_intf->p_sys->p_gnome );
 123             free( p_intf->p_sys );
 124             return( 1 );
 125         }
 126     }
 127
 128     /* Spawn Gnome thread */
 129     p_intf->p_sys->p_gnome->b_die = 0;
 130     p_intf->p_sys->p_gnome->b_error = 0;
 131
 132     p_intf->p_sys->p_gnome->b_popup_changed = 0;
 133     p_intf->p_sys->p_gnome->b_window_changed = 0;
 134     p_intf->p_sys->p_gnome->b_playlist_changed = 0;
 135
 136     vlc_thread_create( &p_intf->p_sys->p_gnome->thread_id, "gnome",
 137                        (void *)GnomeThread, p_intf->p_sys->p_gnome );
 138
 139     /* create basic key bindings */
 140     intf_AssignNormalKeys( p_intf );
 141
 142
 143     /* Disable screen saver and return */
 144     p_intf->p_sys->i_ss_count = 1;
 145     GnomeDisableScreenSaver( p_intf );
 146     return( 0 );
 147 }
 148
 149 /*****************************************************************************
 150  * intf_GnomeDestroy: destroy interface window
 151  *****************************************************************************/
 152 void intf_GnomeDestroy( intf_thread_t *p_intf )
 153 {
 154     /* Enable screen saver */
 155     GnomeEnableScreenSaver( p_intf );
 156
 157     /* Close input thread, if any (blocking) */
 158     if( p_intf->p_input )
 159     {
 160         input_DestroyThread( p_intf->p_input, NULL );
 161     }
 162
 163     /* Close video output thread, if any (blocking) */
 164     if( p_intf->p_vout )
 165     {
 166         vout_DestroyThread( p_intf->p_vout, NULL );
 167     }
 168
 169     /* Close gnome thread, if any (blocking) */
 170     if( p_intf->p_sys->p_gnome->thread_id )
 171     {
 172         p_intf->p_sys->p_gnome->b_die = 1;
 173         intf_Msg( "waiting for Gnome thread to terminate\n" );
 174         vlc_thread_join( p_intf->p_sys->p_gnome->thread_id );
 175         intf_Msg( "Gnome thread terminated\n" );
 176     }
 177
 178     /* Close main window and display */
 179     GnomeDestroyWindow( p_intf );
 180     XCloseDisplay( p_intf->p_sys->p_display );
 181
 182     /* Destroy structures */
 183     free( p_intf->p_sys->p_gnome );
 184     free( p_intf->p_sys );
 185 }
 186
 187 /*****************************************************************************
 188  * intf_GnomeManage: event loop
 189  *****************************************************************************/
 190 void intf_GnomeManage( intf_thread_t *p_intf )
 191 {
 192     /* Manage main window */
 193     GnomeManageWindow( p_intf );
 194
 195     /* Manage messages from the Gnome interface */
 196     GnomeManageInterface( p_intf );
 197 }
 198
 199 /* following functions are local */
 200
 201 /*****************************************************************************
 202  * GnomeCreateWindow: open and set-up X11 main window
 203  *****************************************************************************/
 204 static int GnomeCreateWindow( intf_thread_t *p_intf )
 205 {
 206     XSizeHints              xsize_hints;
 207     XSetWindowAttributes    xwindow_attributes;
 208     XGCValues               xgcvalues;
 209     XEvent                  xevent;
 210     boolean_t               b_expose;
 211     boolean_t               b_configure_notify;
 212     boolean_t               b_map_notify;
 213
 214     /* Set main window's size */
 215     p_intf->p_sys->i_width =  main_GetIntVariable( VOUT_WIDTH_VAR,
 216                                                    VOUT_WIDTH_DEFAULT );
 217     p_intf->p_sys->i_height = main_GetIntVariable( VOUT_HEIGHT_VAR,
 218                                                    VOUT_HEIGHT_DEFAULT );
 219
 220     /* Prepare window manager hints and properties */
 221     xsize_hints.base_width =            p_intf->p_sys->i_width;
 222     xsize_hints.base_height =           p_intf->p_sys->i_height;
 223     xsize_hints.flags =                 PSize;
 224     p_intf->p_sys->wm_protocols =       XInternAtom( p_intf->p_sys->p_display,
 225                                                      "WM_PROTOCOLS", True );
 226     p_intf->p_sys->wm_delete_window =   XInternAtom( p_intf->p_sys->p_display,
 227                                                      "WM_DELETE_WINDOW", True );
 228
 229     /* Prepare window attributes */
 230     xwindow_attributes.backing_store = Always;       /* save the hidden part */
 231     xwindow_attributes.background_pixel = WhitePixel( p_intf->p_sys->p_display,
 232                                                       p_intf->p_sys->i_screen );
 233
 234     xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
 235
 236     /* Create the window and set hints - the window must receive ConfigureNotify
 237      * events, and, until it is displayed, Expose and MapNotify events. */
 238     p_intf->p_sys->window =
 239             XCreateWindow( p_intf->p_sys->p_display,
 240                            DefaultRootWindow( p_intf->p_sys->p_display ),
 241                            0, 0,
 242                            p_intf->p_sys->i_width, p_intf->p_sys->i_height, 1,
 243                            0, InputOutput, 0,
 244                            CWBackingStore | CWBackPixel | CWEventMask,
 245                            &xwindow_attributes );
 246
 247     /* Set window manager hints and properties: size hints, command,
 248      * window's name, and accepted protocols */
 249     XSetWMNormalHints( p_intf->p_sys->p_display, p_intf->p_sys->window,
 250                        &xsize_hints );
 251     XSetCommand( p_intf->p_sys->p_display, p_intf->p_sys->window,
 252                  p_main->ppsz_argv, p_main->i_argc );
 253     XStoreName( p_intf->p_sys->p_display, p_intf->p_sys->window, VOUT_TITLE );
 254     if( (p_intf->p_sys->wm_protocols == None)        /* use WM_DELETE_WINDOW */
 255         || (p_intf->p_sys->wm_delete_window == None)
 256         || !XSetWMProtocols( p_intf->p_sys->p_display, p_intf->p_sys->window,
 257                              &p_intf->p_sys->wm_delete_window, 1 ) )
 258     {
 259         /* WM_DELETE_WINDOW is not supported by window manager */
 260         intf_Msg("error: missing or bad window manager - please exit program kindly.\n");
 261     }
 262
 263     /* Creation of a graphic context that doesn't generate a GraphicsExpose
 264      * event when using functions like XCopyArea */
 265     xgcvalues.graphics_exposures = False;
 266     p_intf->p_sys->gc =  XCreateGC( p_intf->p_sys->p_display, p_intf->p_sys->window,
 267                                     GCGraphicsExposures, &xgcvalues);
 268
 269     /* Send orders to server, and wait until window is displayed - three
 270      * events must be received: a MapNotify event, an Expose event allowing
 271      * drawing in the window, and a ConfigureNotify to get the window
 272      * dimensions. Once those events have been received, only ConfigureNotify
 273      * events need to be received. */
 274     b_expose = 0;
 275     b_configure_notify = 0;
 276     b_map_notify = 0;
 277     XMapWindow( p_intf->p_sys->p_display, p_intf->p_sys->window);
 278     do
 279     {
 280         XNextEvent( p_intf->p_sys->p_display, &xevent);
 281         if( (xevent.type == Expose)
 282             && (xevent.xexpose.window == p_intf->p_sys->window) )
 283         {
 284             b_expose = 1;
 285         }
 286         else if( (xevent.type == MapNotify)
 287                  && (xevent.xmap.window == p_intf->p_sys->window) )
 288         {
 289             b_map_notify = 1;
 290         }
 291         else if( (xevent.type == ConfigureNotify)
 292                  && (xevent.xconfigure.window == p_intf->p_sys->window) )
 293         {
 294             b_configure_notify = 1;
 295             p_intf->p_sys->i_width = xevent.xconfigure.width;
 296             p_intf->p_sys->i_height = xevent.xconfigure.height;
 297         }
 298     } while( !( b_expose && b_configure_notify && b_map_notify ) );
 299
 300     XSelectInput( p_intf->p_sys->p_display, p_intf->p_sys->window,
 301                   StructureNotifyMask | KeyPressMask | ButtonPressMask );
 302
 303     if( XDefaultDepth(p_intf->p_sys->p_display, p_intf->p_sys->i_screen) == 8 )
 304     {
 305         /* Allocate a new palette */
 306         p_intf->p_sys->colormap = XCreateColormap( p_intf->p_sys->p_display,
 307                               DefaultRootWindow( p_intf->p_sys->p_display ),
 308                               DefaultVisual( p_intf->p_sys->p_display,
 309                                              p_intf->p_sys->i_screen ),
 310                               AllocAll );
 311
 312         xwindow_attributes.colormap = p_intf->p_sys->colormap;
 313         XChangeWindowAttributes( p_intf->p_sys->p_display,
 314                                  p_intf->p_sys->window,
 315                                  CWColormap, &xwindow_attributes );
 316     }
 317
 318     /* At this stage, the window is open, displayed, and ready to receive data */
 319     return( 0 );
 320 }
 321
 322 /*****************************************************************************
 323  * GnomeDestroyWindow: destroy X11 main window
 324  *****************************************************************************/
 325 static void GnomeDestroyWindow( intf_thread_t *p_intf )
 326 {
 327     XUnmapWindow( p_intf->p_sys->p_display, p_intf->p_sys->window );
 328     XFreeGC( p_intf->p_sys->p_display, p_intf->p_sys->gc );
 329     XDestroyWindow( p_intf->p_sys->p_display, p_intf->p_sys->window );
 330 }
 331
 332 /*****************************************************************************
 333  * GnomeManageWindow: manage X11 main window
 334  *****************************************************************************/
 335 static void GnomeManageWindow( intf_thread_t *p_intf )
 336 {
 337     XEvent      xevent;                                         /* X11 event */
 338     boolean_t   b_resized;                        /* window has been resized */
 339     char        i_key;                                    /* ISO Latin-1 key */
 340
 341     /* Handle X11 events: ConfigureNotify events are parsed to know if the
 342      * output window's size changed, MapNotify and UnmapNotify to know if the
 343      * window is mapped (and if the display is useful), and ClientMessages
 344      * to intercept window destruction requests */
 345     b_resized = 0;
 346     while( XCheckWindowEvent( p_intf->p_sys->p_display, p_intf->p_sys->window,
 347                               StructureNotifyMask | KeyPressMask |
 348                               ButtonPressMask, &xevent ) == True )
 349     {
 350         /* ConfigureNotify event: prepare  */
 351         if( (xevent.type == ConfigureNotify)
 352             && ((xevent.xconfigure.width != p_intf->p_sys->i_width)
 353                 || (xevent.xconfigure.height != p_intf->p_sys->i_height)) )
 354         {
 355             /* Update dimensions */
 356             b_resized = 1;
 357             p_intf->p_sys->i_width = xevent.xconfigure.width;
 358             p_intf->p_sys->i_height = xevent.xconfigure.height;
 359         }
 360         /* MapNotify event: change window status and disable screen saver */
 361         else if( xevent.type == MapNotify)
 362         {
 363             if( (p_intf->p_vout != NULL) && !p_intf->p_vout->b_active )
 364             {
 365                 GnomeDisableScreenSaver( p_intf );
 366                 p_intf->p_vout->b_active = 1;
 367             }
 368         }
 369         /* UnmapNotify event: change window status and enable screen saver */
 370         else if( xevent.type == UnmapNotify )
 371         {
 372             if( (p_intf->p_vout != NULL) && p_intf->p_vout->b_active )
 373             {
 374                 GnomeEnableScreenSaver( p_intf );
 375                 p_intf->p_vout->b_active = 0;
 376             }
 377         }
 378         /* Keyboard event */
 379         else if( xevent.type == KeyPress )
 380         {
 381             if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
 382             {
 383                 if( intf_ProcessKey( p_intf, i_key ) )
 384                 {
 385                     intf_DbgMsg( "unhandled key '%c' (%i)\n", (char) i_key, i_key );
 386                 }
 387             }
 388         }
 389         /* Mouse click */
 390         else if( xevent.type == ButtonPress )
 391         {
 392             switch( ((XButtonEvent *)&xevent)->button )
 393             {
 394                 case Button1:
 395                     /* in this part we will eventually manage
 396                      * clicks for DVD navigation for instance */
 397                     break;
 398
 399                 case Button2:
 400                     GnomeTogglePointer( p_intf );
 401                     break;
 402
 403                 case Button3:
 404                     /* toggle the menu display */
 405                     vlc_mutex_lock( &p_intf->p_sys->p_gnome->change_lock );
 406                     p_intf->p_sys->p_gnome->b_popup_changed = 1;
 407                     vlc_mutex_unlock( &p_intf->p_sys->p_gnome->change_lock );
 408                     break;
 409             }
 410
 411         }
 412 #ifdef DEBUG
 413         /* Other event */
 414         else
 415         {
 416             intf_DbgMsg( "%p -> unhandled event type %d received\n",
 417                          p_intf, xevent.type );
 418         }
 419 #endif
 420     }
 421
 422     /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
 423      * are handled - according to the man pages, the format is always 32
 424      * in this case */
 425     while( XCheckTypedEvent( p_intf->p_sys->p_display,
 426                              ClientMessage, &xevent ) )
 427     {
 428         if( (xevent.xclient.message_type == p_intf->p_sys->wm_protocols)
 429             && (xevent.xclient.data.l[0] == p_intf->p_sys->wm_delete_window ) )
 430         {
 431             p_intf->b_die = 1;
 432         }
 433         else
 434         {
 435             intf_DbgMsg( "%p -> unhandled ClientMessage received\n", p_intf );
 436         }
 437     }
 438
 439     /*
 440      * Handle vout or interface windows resizing
 441      */
 442     if( p_intf->p_vout != NULL )
 443     {
 444         if( b_resized )
 445         {
 446             /* If interface window has been resized, change vout size */
 447             intf_DbgMsg( "resizing output window\n" );
 448             vlc_mutex_lock( &p_intf->p_vout->change_lock );
 449             p_intf->p_vout->i_width =  p_intf->p_sys->i_width;
 450             p_intf->p_vout->i_height = p_intf->p_sys->i_height;
 451             p_intf->p_vout->i_changes |= VOUT_SIZE_CHANGE;
 452             vlc_mutex_unlock( &p_intf->p_vout->change_lock );
 453         }
 454         else if( (p_intf->p_vout->i_width  != p_intf->p_sys->i_width) ||
 455                  (p_intf->p_vout->i_height != p_intf->p_sys->i_height) )
 456         {
 457            /* If video output size has changed, change interface window size */
 458             intf_DbgMsg( "resizing output window\n" );
 459             p_intf->p_sys->i_width =    p_intf->p_vout->i_width;
 460             p_intf->p_sys->i_height =   p_intf->p_vout->i_height;
 461             XResizeWindow( p_intf->p_sys->p_display, p_intf->p_sys->window,
 462                            p_intf->p_sys->i_width, p_intf->p_sys->i_height );
 463         }
 464     }
 465 }
 466
 467 /*****************************************************************************
 468  * GnomeEnableScreenSaver: enable screen saver
 469  *****************************************************************************
 470  * This function enable the screen saver on a display after it had been
 471  * disabled by XDisableScreenSaver. Both functions use a counter mechanism to
 472  * know wether the screen saver can be activated or not: if n successive calls
 473  * are made to XDisableScreenSaver, n successive calls to XEnableScreenSaver
 474  * will be required before the screen saver could effectively be activated.
 475  *****************************************************************************/
 476 void GnomeEnableScreenSaver( intf_thread_t *p_intf )
 477 {
 478     if( p_intf->p_sys->i_ss_count++ == 0 )
 479     {
 480         intf_Msg( "Enabling screen saver\n" );
 481         XSetScreenSaver( p_intf->p_sys->p_display, p_intf->p_sys->i_ss_timeout,
 482                          p_intf->p_sys->i_ss_interval, p_intf->p_sys->i_ss_blanking,
 483                          p_intf->p_sys->i_ss_exposure );
 484     }
 485 }
 486
 487 /*****************************************************************************
 488  * GnomeDisableScreenSaver: disable screen saver
 489  *****************************************************************************
 490  * See XEnableScreenSaver
 491  *****************************************************************************/
 492 void GnomeDisableScreenSaver( intf_thread_t *p_intf )
 493 {
 494     if( --p_intf->p_sys->i_ss_count == 0 )
 495     {
 496         /* Save screen saver informations */
 497         XGetScreenSaver( p_intf->p_sys->p_display, &p_intf->p_sys->i_ss_timeout,
 498                          &p_intf->p_sys->i_ss_interval, &p_intf->p_sys->i_ss_blanking,
 499                          &p_intf->p_sys->i_ss_exposure );
 500
 501         /* Disable screen saver */
 502         intf_Msg("Disabling screen saver\n");
 503         XSetScreenSaver( p_intf->p_sys->p_display, 0,
 504                          p_intf->p_sys->i_ss_interval, p_intf->p_sys->i_ss_blanking,
 505                          p_intf->p_sys->i_ss_exposure );
 506     }
 507 }
 508
 509 /*****************************************************************************
 510  * GnomeTogglePointer: hide or show the mouse pointer
 511  *****************************************************************************
 512  * This function hides the X pointer if it is visible by putting it at
 513  * coordinates (32,32) and setting the pointer sprite to a blank one. To
 514  * show it again, we disable the sprite and restore the original coordinates.
 515  *****************************************************************************/
 516 void GnomeTogglePointer( intf_thread_t *p_intf )
 517 {
 518     static Cursor cursor;
 519     static boolean_t b_cursor = 0;
 520
 521     if( p_intf->p_sys->b_mouse )
 522     {
 523         p_intf->p_sys->b_mouse = 0;
 524
 525         if( !b_cursor )
 526         {
 527             XColor color;
 528             Pixmap blank = XCreatePixmap( p_intf->p_sys->p_display,
 529                                DefaultRootWindow(p_intf->p_sys->p_display),
 530                                1, 1, 1 );
 531
 532             XParseColor( p_intf->p_sys->p_display,
 533                          XCreateColormap( p_intf->p_sys->p_display,
 534                                           DefaultRootWindow(
 535                                                   p_intf->p_sys->p_display ),
 536                                           DefaultVisual(
 537                                                   p_intf->p_sys->p_display,
 538                                                   p_intf->p_sys->i_screen ),
 539                                           AllocNone ),
 540                          "black", &color );
 541
 542             cursor = XCreatePixmapCursor( p_intf->p_sys->p_display,
 543                            blank, blank, &color, &color, 1, 1 );
 544
 545             b_cursor = 1;
 546         }
 547         XDefineCursor( p_intf->p_sys->p_display,
 548                        p_intf->p_sys->window, cursor );
 549     }
 550     else
 551     {
 552         p_intf->p_sys->b_mouse = 1;
 553
 554         XUndefineCursor( p_intf->p_sys->p_display, p_intf->p_sys->window );
 555     }
 556 }
 557
 558 /*****************************************************************************
 559  * GnomeManageInterface: manage messages from the Gnome interface
 560
 561  *****************************************************************************
 562  * In this function, called approx. 10 times a second, we check what the
 563  * Gnome interface wanted to tell us.
 564  *****************************************************************************/
 565 static void GnomeManageInterface( intf_thread_t *p_intf )
 566 {
 567     gnome_thread_t *p_gnome = p_intf->p_sys->p_gnome;
 568
 569     /* lock the change structure */
 570     vlc_mutex_lock( &p_gnome->change_lock );
 571
 572     /* you killed my father, prepare to die */
 573     if( p_gnome->b_die )
 574     {
 575         p_intf->b_die = 1;
 576     }
 577
 578     if( p_gnome->b_activity_changed )
 579     {
 580         vlc_mutex_lock( &p_intf->p_vout->picture_lock );
 581         p_intf->p_vout->b_active = p_gnome->b_activity;
 582         /* having to access p_main sucks */
 583         p_main->p_aout->b_active = p_gnome->b_activity;
 584         vlc_mutex_unlock( &p_intf->p_vout->picture_lock );
 585
 586         p_gnome->b_activity_changed = 0;
 587     }
 588
 589     /* unlock the change structure */
 590     vlc_mutex_unlock( &p_gnome->change_lock );
 591 }
 592
 593 /*****************************************************************************
 594  * GnomeManageMain: manage main thread messages
 595  *****************************************************************************
 596  * In this function, called approx. 10 times a second, we check what the
 597  * main program wanted to tell us.
 598  *****************************************************************************/
 599 static gint GnomeManageMain( gpointer p_data )
 600 {
 601     gnome_thread_t *p_gnome = (void *)p_data;
 602
 603     /* lock the change structure */
 604     vlc_mutex_lock( &p_gnome->change_lock );
 605
 606     if( p_gnome->b_die )
 607     {
 608         /* unlock the change structure */
 609         vlc_mutex_unlock( &p_gnome->change_lock );
 610
 611         /* prepare to die, young man */
 612         gtk_main_quit();
 613         return( FALSE );
 614     }
 615
 616     /* if the "display popup" flag has changed */
 617     if( p_gnome->b_popup_changed )
 618     {
 619         gnome_popup_menu_do_popup( p_gnome->p_popup,
 620                                    NULL, NULL, NULL, NULL );
 621         p_gnome->b_popup_changed = 0;
 622     }
 623
 624     /* unlock the change structure */
 625     vlc_mutex_unlock( &p_gnome->change_lock );
 626
 627     return( TRUE );
 628 }
 629
 630 /*****************************************************************************
 631  * GnomeThread: special Gnome thread
 632  *****************************************************************************
 633  * this part of the interface is in a separate thread so that we can call
 634  * gtk_main() from within it without annoying the rest of the program.
 635  * XXX: the approach may look kludgy, and probably is, but I could not find
 636  * a better way to dynamically load a Gnome interface at runtime.
 637  *****************************************************************************/
 638 void GnomeThread( gnome_thread_t *p_gnome )
 639 {
 640     /* gnome_init needs to know the command line. We don't care, so we
 641      * give it an empty one */
 642     char *p_args[] = { };
 643
 644     /* Sleep to avoid using all CPU - since some interfaces needs to access
 645      * keyboard events, a 100ms delay is a good compromise */
 646     gtk_timeout_add( INTF_IDLE_SLEEP / 1000, GnomeManageMain, p_gnome );
 647
 648     gnome_init( "vlc", VERSION, 1, p_args );
 649
 650     /* create some useful widgets that will certainly be used */
 651     p_gnome->p_window = create_intf_window();
 652     p_gnome->p_popup = create_intf_popup( );
 653
 654     /* we don't create these ones yet because we perhaps won't need them */
 655     p_gnome->p_about = NULL;
 656     p_gnome->p_playlist = NULL;
 657
 658     /* store p_sys to keep an eye on it */
 659     gtk_object_set_data( GTK_OBJECT(p_gnome->p_window), "p_gnome", p_gnome );
 660     gtk_object_set_data( GTK_OBJECT(p_gnome->p_popup), "p_gnome", p_gnome );
 661
 662     /* show the control window */
 663     //gtk_widget_show( p_gnome->p_window );
 664
 665     /* enter gnome mode */
 666     gtk_main();
 667 }
 668