]> git.sesse.net Git - vlc/blobdiff - plugins/gnome/intf_gnome.c
* Ported Glide and MGA plugins to the new module API. MGA never worked,
[vlc] / plugins / gnome / intf_gnome.c
index 6fb12070323ffe99d2357b2c4e6178fc596d2d75..f3de8c330e1d2d33b8e88f8c4876b5e5abb409d2 100644 (file)
@@ -2,8 +2,9 @@
  * intf_gnome.c: Gnome interface
  *****************************************************************************
  * Copyright (C) 1999, 2000 VideoLAN
+ * $Id: intf_gnome.c,v 1.15 2001/02/20 07:49:13 sam Exp $
  *
- * Authors:
+ * Authors: Samuel Hocevar <sam@zoy.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,6 +21,9 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  *****************************************************************************/
 
+#define MODULE_NAME gnome
+#include "modules_inner.h"
+
 /*****************************************************************************
  * Preamble
  *****************************************************************************/
 #include <errno.h>                                                 /* ENOMEM */
 #include <stdlib.h>                                                /* free() */
 #include <string.h>                                            /* strerror() */
-#include <sys/types.h>                        /* on BSD, uio.h needs types.h */
-#include <sys/uio.h>                                          /* for input.h */
+#include <stdio.h>
 
-#include <X11/Xlib.h>
-#include <X11/Xutil.h>
-#include <X11/keysym.h>
+#include <gnome.h>
 
 #include "config.h"
 #include "common.h"
 #include "threads.h"
 #include "mtime.h"
-#include "plugins.h"
+#include "tests.h"
+#include "modules.h"
 
-#include "input.h"
-#include "video.h"
-#include "video_output.h"
-
-#include "audio_output.h" /* needed for mute */
+#include "stream_control.h"
+#include "input_ext-intf.h"
 
 #include "intf_msg.h"
 #include "interface.h"
 
-#include "main.h"
+#include "gnome_sys.h"
+#include "gnome_interface.h"
+#include "gnome_support.h"
 
-#include <stdio.h>
+#include "main.h"
 
-#include <gnome.h>
+/*****************************************************************************
+ * Local prototypes.
+ *****************************************************************************/
+static int  intf_Probe     ( probedata_t *p_data );
+static int  intf_Open      ( intf_thread_t *p_intf );
+static void intf_Close     ( intf_thread_t *p_intf );
+static void intf_Run       ( intf_thread_t *p_intf );
 
-#include "intf_gnome_thread.h"
-#include "intf_gnome.h"
-#include "intf_gnome_interface.h"
-#include "intf_gnome_support.h"
+static gint GnomeManage    ( gpointer p_data );
 
 /*****************************************************************************
- * intf_GnomeCreate: initialize and create window
+ * g_atexit: kludge to avoid the Gnome thread to segfault at exit
+ *****************************************************************************
+ * gtk_init() makes several calls to g_atexit() which calls atexit() to
+ * register tidying callbacks to be called at program exit. Since the Gnome
+ * plugin is likely to be unloaded at program exit, we have to export this
+ * symbol to intercept the g_atexit() calls. Talk about crude hack.
  *****************************************************************************/
-int intf_GnomeCreate( intf_thread_t *p_intf )
+void g_atexit( GVoidFunc func )
 {
-    char       *psz_display;
-
-    /* Allocate instance and initialize some members */
-    p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
-    if( p_intf->p_sys == NULL )
-    {
-        intf_ErrMsg("error: %s\n", strerror(ENOMEM));
-        return( 1 );
-    }
-
-    p_intf->p_sys->p_gnome = malloc( sizeof( gnome_thread_t ) );
-    if( p_intf->p_sys->p_gnome == NULL )
-    {
-        intf_ErrMsg("error: %s\n", strerror(ENOMEM));
-        free( p_intf->p_sys );
-        return( 1 );
-    }
-
-    /* Open display, unsing 'vlc_display' or DISPLAY environment variable */
-    psz_display = XDisplayName( main_GetPszVariable( VOUT_DISPLAY_VAR, NULL ) );
-    p_intf->p_sys->p_display = XOpenDisplay( psz_display );
-    if( !p_intf->p_sys->p_display )                                 /* error */
-    {
-        intf_ErrMsg("error: can't open display %s\n", psz_display );
-        free( p_intf->p_sys->p_gnome );
-        free( p_intf->p_sys );
-        return( 1 );
-    }
-    p_intf->p_sys->i_screen = DefaultScreen( p_intf->p_sys->p_display );
+    intf_thread_t *p_intf = p_main->p_intf;
 
-    /* Spawn base window - this window will include the video output window */
-    if( GnomeCreateWindow( p_intf ) )
+    if( p_intf->p_sys->pf_gdk_callback == NULL )
     {
-        intf_ErrMsg( "error: can't create output window\n" );
-        XCloseDisplay( p_intf->p_sys->p_display );
-        free( p_intf->p_sys->p_gnome );
-        free( p_intf->p_sys );
-        return( 1 );
+        p_intf->p_sys->pf_gdk_callback = func;
     }
-
-    /* Spawn video output thread */
-    if( p_main->b_video )
+    else if( p_intf->p_sys->pf_gtk_callback == NULL )
     {
-        p_intf->p_vout = vout_CreateThread( psz_display, p_intf->p_sys->window,
-                                            p_intf->p_sys->i_width,
-                                            p_intf->p_sys->i_height, NULL, 0,
-                                            (void *)&p_intf->p_sys->colormap );
-
-        if( p_intf->p_vout == NULL )                                /* error */
-        {
-            intf_ErrMsg("error: can't create video output thread\n" );
-            GnomeDestroyWindow( p_intf );
-            XCloseDisplay( p_intf->p_sys->p_display );
-            free( p_intf->p_sys->p_gnome );
-            free( p_intf->p_sys );
-            return( 1 );
-        }
+        p_intf->p_sys->pf_gtk_callback = func;
     }
-
-    /* Spawn Gnome thread */
-    p_intf->p_sys->p_gnome->b_die = 0;
-    p_intf->p_sys->p_gnome->b_error = 0;
-    
-    p_intf->p_sys->p_gnome->b_popup_changed = 0;
-    p_intf->p_sys->p_gnome->b_window_changed = 0;
-    p_intf->p_sys->p_gnome->b_playlist_changed = 0;
-
-    vlc_thread_create( &p_intf->p_sys->p_gnome->thread_id, "gnome",
-                       (void *)GnomeThread, p_intf->p_sys->p_gnome );
-
-    /* Disable screen saver and return */
-    p_intf->p_sys->i_ss_count = 1;
-    GnomeDisableScreenSaver( p_intf );
-    return( 0 );
+    /* else nothing, but we could do something here */
+    return;
 }
 
 /*****************************************************************************
- * intf_GnomeDestroy: destroy interface window
+ * Functions exported as capabilities. They are declared as static so that
+ * we don't pollute the namespace too much.
  *****************************************************************************/
-void intf_GnomeDestroy( intf_thread_t *p_intf )
+void _M( intf_getfunctions )( function_list_t * p_function_list )
 {
-    /* Enable screen saver */
-    GnomeEnableScreenSaver( p_intf );
-
-    /* Close input thread, if any (blocking) */
-    if( p_intf->p_input )
-    {
-        input_DestroyThread( p_intf->p_input, NULL );
-    }
-
-    /* Close video output thread, if any (blocking) */
-    if( p_intf->p_vout )
-    {
-        vout_DestroyThread( p_intf->p_vout, NULL );
-    }
-
-    /* Close gnome thread, if any (blocking) */
-    if( p_intf->p_sys->p_gnome->thread_id )
-    {
-        p_intf->p_sys->p_gnome->b_die = 1;
-        intf_Msg( "waiting for Gnome thread to terminate\n" );
-        vlc_thread_join( p_intf->p_sys->p_gnome->thread_id );
-        intf_Msg( "Gnome thread terminated\n" );
-    }
-
-    /* Close main window and display */
-    GnomeDestroyWindow( p_intf );
-    XCloseDisplay( p_intf->p_sys->p_display );
-
-    /* Destroy structures */
-    free( p_intf->p_sys->p_gnome );
-    free( p_intf->p_sys );
+    p_function_list->pf_probe = intf_Probe;
+    p_function_list->functions.intf.pf_open  = intf_Open;
+    p_function_list->functions.intf.pf_close = intf_Close;
+    p_function_list->functions.intf.pf_run   = intf_Run;
 }
 
 /*****************************************************************************
- * intf_GnomeManage: event loop
+ * intf_Probe: probe the interface and return a score
+ *****************************************************************************
+ * This function tries to initialize Gnome and returns a score to the
+ * plugin manager so that it can select the best plugin.
  *****************************************************************************/
-void intf_GnomeManage( intf_thread_t *p_intf )
+static int intf_Probe( probedata_t *p_data )
 {
-    /* Manage main window */
-    GnomeManageWindow( p_intf );
+    if( TestMethod( INTF_METHOD_VAR, "gnome" ) )
+    {
+        return( 999 );
+    }
 
-    /* Manage messages from the Gnome interface */
-    GnomeManageInterface( p_intf );
+    return( 100 );
 }
 
-/* following functions are local */
-
 /*****************************************************************************
- * GnomeCreateWindow: open and set-up X11 main window
+ * intf_Open: initialize and create window
  *****************************************************************************/
-static int GnomeCreateWindow( intf_thread_t *p_intf )
+static int intf_Open( intf_thread_t *p_intf )
 {
-    XSizeHints              xsize_hints;
-    XSetWindowAttributes    xwindow_attributes;
-    XGCValues               xgcvalues;
-    XEvent                  xevent;
-    boolean_t               b_expose;
-    boolean_t               b_configure_notify;
-    boolean_t               b_map_notify;
-
-    /* Set main window's size */
-    p_intf->p_sys->i_width =  main_GetIntVariable( VOUT_WIDTH_VAR,
-                                                   VOUT_WIDTH_DEFAULT );
-    p_intf->p_sys->i_height = main_GetIntVariable( VOUT_HEIGHT_VAR,
-                                                   VOUT_HEIGHT_DEFAULT );
-
-    /* Prepare window manager hints and properties */
-    xsize_hints.base_width =            p_intf->p_sys->i_width;
-    xsize_hints.base_height =           p_intf->p_sys->i_height;
-    xsize_hints.flags =                 PSize;
-    p_intf->p_sys->wm_protocols =       XInternAtom( p_intf->p_sys->p_display,
-                                                     "WM_PROTOCOLS", True );
-    p_intf->p_sys->wm_delete_window =   XInternAtom( p_intf->p_sys->p_display,
-                                                     "WM_DELETE_WINDOW", True );
-
-    /* Prepare window attributes */
-    xwindow_attributes.backing_store = Always;       /* save the hidden part */
-    xwindow_attributes.background_pixel = WhitePixel( p_intf->p_sys->p_display,
-                                                      p_intf->p_sys->i_screen );
-
-    xwindow_attributes.event_mask = ExposureMask | StructureNotifyMask;
-
-    /* Create the window and set hints - the window must receive ConfigureNotify
-     * events, and, until it is displayed, Expose and MapNotify events. */
-    p_intf->p_sys->window =
-            XCreateWindow( p_intf->p_sys->p_display,
-                           DefaultRootWindow( p_intf->p_sys->p_display ),
-                           0, 0,
-                           p_intf->p_sys->i_width, p_intf->p_sys->i_height, 1,
-                           0, InputOutput, 0,
-                           CWBackingStore | CWBackPixel | CWEventMask,
-                           &xwindow_attributes );
-
-    /* Set window manager hints and properties: size hints, command,
-     * window's name, and accepted protocols */
-    XSetWMNormalHints( p_intf->p_sys->p_display, p_intf->p_sys->window,
-                       &xsize_hints );
-    XSetCommand( p_intf->p_sys->p_display, p_intf->p_sys->window,
-                 p_main->ppsz_argv, p_main->i_argc );
-    XStoreName( p_intf->p_sys->p_display, p_intf->p_sys->window, VOUT_TITLE );
-    if( (p_intf->p_sys->wm_protocols == None)        /* use WM_DELETE_WINDOW */
-        || (p_intf->p_sys->wm_delete_window == None)
-        || !XSetWMProtocols( p_intf->p_sys->p_display, p_intf->p_sys->window,
-                             &p_intf->p_sys->wm_delete_window, 1 ) )
+    /* Allocate instance and initialize some members */
+    p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
+    if( p_intf->p_sys == NULL )
     {
-        /* WM_DELETE_WINDOW is not supported by window manager */
-        intf_Msg("error: missing or bad window manager - please exit program kindly.\n");
+        intf_ErrMsg("error: %s", strerror(ENOMEM));
+        return( 1 );
     }
 
-    /* Creation of a graphic context that doesn't generate a GraphicsExpose
-     * event when using functions like XCopyArea */
-    xgcvalues.graphics_exposures = False;
-    p_intf->p_sys->gc =  XCreateGC( p_intf->p_sys->p_display, p_intf->p_sys->window,
-                                    GCGraphicsExposures, &xgcvalues);
-
-    /* Send orders to server, and wait until window is displayed - three
-     * events must be received: a MapNotify event, an Expose event allowing
-     * drawing in the window, and a ConfigureNotify to get the window
-     * dimensions. Once those events have been received, only ConfigureNotify
-     * events need to be received. */
-    b_expose = 0;
-    b_configure_notify = 0;
-    b_map_notify = 0;
-    XMapWindow( p_intf->p_sys->p_display, p_intf->p_sys->window);
-    do
-    {
-        XNextEvent( p_intf->p_sys->p_display, &xevent);
-        if( (xevent.type == Expose)
-            && (xevent.xexpose.window == p_intf->p_sys->window) )
-        {
-            b_expose = 1;
-        }
-        else if( (xevent.type == MapNotify)
-                 && (xevent.xmap.window == p_intf->p_sys->window) )
-        {
-            b_map_notify = 1;
-        }
-        else if( (xevent.type == ConfigureNotify)
-                 && (xevent.xconfigure.window == p_intf->p_sys->window) )
-        {
-            b_configure_notify = 1;
-            p_intf->p_sys->i_width = xevent.xconfigure.width;
-            p_intf->p_sys->i_height = xevent.xconfigure.height;
-        }
-    } while( !( b_expose && b_configure_notify && b_map_notify ) );
+    /* Initialize Gnome thread */
+    p_intf->p_sys->b_popup_changed = 0;
+    p_intf->p_sys->b_window_changed = 0;
+    p_intf->p_sys->b_playlist_changed = 0;
 
-    XSelectInput( p_intf->p_sys->p_display, p_intf->p_sys->window,
-                  StructureNotifyMask | KeyPressMask | ButtonPressMask );
+    p_intf->p_sys->b_scale_isfree = 1;
 
-    if( XDefaultDepth(p_intf->p_sys->p_display, p_intf->p_sys->i_screen) == 8 )
-    {
-        /* Allocate a new palette */
-        p_intf->p_sys->colormap = XCreateColormap( p_intf->p_sys->p_display,
-                              DefaultRootWindow( p_intf->p_sys->p_display ),
-                              DefaultVisual( p_intf->p_sys->p_display,
-                                             p_intf->p_sys->i_screen ),
-                              AllocAll );
-
-        xwindow_attributes.colormap = p_intf->p_sys->colormap;
-        XChangeWindowAttributes( p_intf->p_sys->p_display,
-                                 p_intf->p_sys->window,
-                                 CWColormap, &xwindow_attributes );
-    }
+    p_intf->p_sys->pf_gtk_callback = NULL;
+    p_intf->p_sys->pf_gdk_callback = NULL;
 
-    /* At this stage, the window is open, displayed, and ready to receive data */
     return( 0 );
 }
 
 /*****************************************************************************
- * GnomeDestroyWindow: destroy X11 main window
+ * intf_Close: destroy interface window
  *****************************************************************************/
-static void GnomeDestroyWindow( intf_thread_t *p_intf )
+static void intf_Close( intf_thread_t *p_intf )
 {
-    XUnmapWindow( p_intf->p_sys->p_display, p_intf->p_sys->window );
-    XFreeGC( p_intf->p_sys->p_display, p_intf->p_sys->gc );
-    XDestroyWindow( p_intf->p_sys->p_display, p_intf->p_sys->window );
+    /* Destroy structure */
+    free( p_intf->p_sys );
 }
 
 /*****************************************************************************
- * GnomeManageWindow: manage X11 main window
+ * intf_Run: Gnome thread
+ *****************************************************************************
+ * this part of the interface is in a separate thread so that we can call
+ * gtk_main() from within it without annoying the rest of the program.
+ * XXX: the approach may look kludgy, and probably is, but I could not find
+ * a better way to dynamically load a Gnome interface at runtime.
  *****************************************************************************/
-static void GnomeManageWindow( intf_thread_t *p_intf )
+static void intf_Run( intf_thread_t *p_intf )
 {
-    XEvent      xevent;                                         /* X11 event */
-    boolean_t   b_resized;                        /* window has been resized */
-    char        i_key;                                    /* ISO Latin-1 key */
-
-    /* Handle X11 events: ConfigureNotify events are parsed to know if the
-     * output window's size changed, MapNotify and UnmapNotify to know if the
-     * window is mapped (and if the display is useful), and ClientMessages
-     * to intercept window destruction requests */
-    b_resized = 0;
-    while( XCheckWindowEvent( p_intf->p_sys->p_display, p_intf->p_sys->window,
-                              StructureNotifyMask | KeyPressMask |
-                              ButtonPressMask, &xevent ) == True )
+    /* gnome_init needs to know the command line. We don't care, so we
+     * give it an empty one */
+    char *p_args[] = { };
+
+    /* The data types we are allowed to receive */
+    static GtkTargetEntry target_table[] =
     {
-        /* ConfigureNotify event: prepare  */
-        if( (xevent.type == ConfigureNotify)
-            && ((xevent.xconfigure.width != p_intf->p_sys->i_width)
-                || (xevent.xconfigure.height != p_intf->p_sys->i_height)) )
-        {
-            /* Update dimensions */
-            b_resized = 1;
-            p_intf->p_sys->i_width = xevent.xconfigure.width;
-            p_intf->p_sys->i_height = xevent.xconfigure.height;
-        }
-        /* MapNotify event: change window status and disable screen saver */
-        else if( xevent.type == MapNotify)
-        {
-            if( (p_intf->p_vout != NULL) && !p_intf->p_vout->b_active )
-            {
-                GnomeDisableScreenSaver( p_intf );
-                p_intf->p_vout->b_active = 1;
-            }
-        }
-        /* UnmapNotify event: change window status and enable screen saver */
-        else if( xevent.type == UnmapNotify )
-        {
-            if( (p_intf->p_vout != NULL) && p_intf->p_vout->b_active )
-            {
-                GnomeEnableScreenSaver( p_intf );
-                p_intf->p_vout->b_active = 0;
-            }
-        }
-        /* Keyboard event */
-        else if( xevent.type == KeyPress )
-        {
-            if( XLookupString( &xevent.xkey, &i_key, 1, NULL, NULL ) )
-            {
-                if( intf_ProcessKey( p_intf, i_key ) )
-                {
-                    intf_DbgMsg( "unhandled key '%c' (%i)\n", (char) i_key, i_key );
-                }
-            }
-        }
-        /* Mouse click */
-        else if( xevent.type == ButtonPress )
-        {
-            switch( ((XButtonEvent *)&xevent)->button )
-            {
-                case Button1:
-                    /* in this part we will eventually manage
-                     * clicks for DVD navigation for instance */
-                    break;
-
-                case Button2:
-                    GnomeTogglePointer( p_intf );
-                    break;
-
-                case Button3:
-                    /* toggle the menu display */
-                    vlc_mutex_lock( &p_intf->p_sys->p_gnome->change_lock );
-                    p_intf->p_sys->p_gnome->b_popup_changed = 1;
-                    vlc_mutex_unlock( &p_intf->p_sys->p_gnome->change_lock );
-                    break;
-            }
+        { "text/uri-list", 0, DROP_ACCEPT_TEXT_URI_LIST },
+        { "text/plain", 0, DROP_ACCEPT_TEXT_PLAIN }
+    };
 
-        }
-#ifdef DEBUG
-        /* Other event */
-        else
-        {
-            intf_DbgMsg( "%p -> unhandled event type %d received\n",
-                         p_intf, xevent.type );
-        }
-#endif
-    }
+    /* Initialize Gnome */
+    gnome_init( p_main->psz_arg0, VERSION, 1, p_args );
 
-    /* ClientMessage event - only WM_PROTOCOLS with WM_DELETE_WINDOW data
-     * are handled - according to the man pages, the format is always 32
-     * in this case */
-    while( XCheckTypedEvent( p_intf->p_sys->p_display,
-                             ClientMessage, &xevent ) )
-    {
-        if( (xevent.xclient.message_type == p_intf->p_sys->wm_protocols)
-            && (xevent.xclient.data.l[0] == p_intf->p_sys->wm_delete_window ) )
-        {
-            p_intf->b_die = 1;
-        }
-        else
-        {
-            intf_DbgMsg( "%p -> unhandled ClientMessage received\n", p_intf );
-        }
-    }
+    /* create some useful widgets that will certainly be used */
+    p_intf->p_sys->p_window = create_intf_window( );
+    p_intf->p_sys->p_popup = create_intf_popup( );
 
-    /*
-     * Handle vout or interface windows resizing
-     */
-    if( p_intf->p_vout != NULL )
-    {
-        if( b_resized )
-        {
-            /* If interface window has been resized, change vout size */
-            intf_DbgMsg( "resizing output window\n" );
-            vlc_mutex_lock( &p_intf->p_vout->change_lock );
-            p_intf->p_vout->i_width =  p_intf->p_sys->i_width;
-            p_intf->p_vout->i_height = p_intf->p_sys->i_height;
-            p_intf->p_vout->i_changes |= VOUT_SIZE_CHANGE;
-            vlc_mutex_unlock( &p_intf->p_vout->change_lock );
-        }
-        else if( (p_intf->p_vout->i_width  != p_intf->p_sys->i_width) ||
-                 (p_intf->p_vout->i_height != p_intf->p_sys->i_height) )
-        {
-           /* If video output size has changed, change interface window size */
-            intf_DbgMsg( "resizing output window\n" );
-            p_intf->p_sys->i_width =    p_intf->p_vout->i_width;
-            p_intf->p_sys->i_height =   p_intf->p_vout->i_height;
-            XResizeWindow( p_intf->p_sys->p_display, p_intf->p_sys->window,
-                           p_intf->p_sys->i_width, p_intf->p_sys->i_height );
-        }
-    }
-}
+    /* accept file drops on the main window */
+    gtk_drag_dest_set( GTK_WIDGET( p_intf->p_sys->p_window ),
+                       GTK_DEST_DEFAULT_ALL, target_table,
+                       1, GDK_ACTION_COPY );
 
-/*****************************************************************************
- * GnomeEnableScreenSaver: enable screen saver
- *****************************************************************************
- * This function enable the screen saver on a display after it had been
- * disabled by XDisableScreenSaver. Both functions use a counter mechanism to
- * know wether the screen saver can be activated or not: if n successive calls
- * are made to XDisableScreenSaver, n successive calls to XEnableScreenSaver
- * will be required before the screen saver could effectively be activated.
- *****************************************************************************/
-void GnomeEnableScreenSaver( intf_thread_t *p_intf )
-{
-    if( p_intf->p_sys->i_ss_count++ == 0 )
-    {
-        intf_Msg( "Enabling screen saver\n" );
-        XSetScreenSaver( p_intf->p_sys->p_display, p_intf->p_sys->i_ss_timeout,
-                         p_intf->p_sys->i_ss_interval, p_intf->p_sys->i_ss_blanking,
-                         p_intf->p_sys->i_ss_exposure );
-    }
-}
+    /* we don't create these ones yet because we perhaps won't need them */
+    p_intf->p_sys->p_about = NULL;
+    p_intf->p_sys->p_playlist = NULL;
+    p_intf->p_sys->p_modules = NULL;
+    p_intf->p_sys->p_fileopen = NULL;
 
-/*****************************************************************************
- * GnomeDisableScreenSaver: disable screen saver
- *****************************************************************************
- * See XEnableScreenSaver
- *****************************************************************************/
-void GnomeDisableScreenSaver( intf_thread_t *p_intf )
-{
-    if( --p_intf->p_sys->i_ss_count == 0 )
-    {
-        /* Save screen saver informations */
-        XGetScreenSaver( p_intf->p_sys->p_display, &p_intf->p_sys->i_ss_timeout,
-                         &p_intf->p_sys->i_ss_interval, &p_intf->p_sys->i_ss_blanking,
-                         &p_intf->p_sys->i_ss_exposure );
-
-        /* Disable screen saver */
-        intf_Msg("Disabling screen saver\n");
-        XSetScreenSaver( p_intf->p_sys->p_display, 0,
-                         p_intf->p_sys->i_ss_interval, p_intf->p_sys->i_ss_blanking,
-                         p_intf->p_sys->i_ss_exposure );
-    }
-}
+    /* store p_sys to keep an eye on it */
+    gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
+                         "p_intf", p_intf );
 
-/*****************************************************************************
- * GnomeTogglePointer: hide or show the mouse pointer
- *****************************************************************************
- * This function hides the X pointer if it is visible by putting it at
- * coordinates (32,32) and setting the pointer sprite to a blank one. To
- * show it again, we disable the sprite and restore the original coordinates.
- *****************************************************************************/
-void GnomeTogglePointer( intf_thread_t *p_intf )
-{
-    static Cursor cursor;
-    static boolean_t b_cursor = 0;
+    gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_popup),
+                         "p_intf", p_intf );
+
+    /* show the control window */
+    gtk_widget_show( p_intf->p_sys->p_window );
 
-    if( p_intf->p_sys->b_mouse )
+    /* Sleep to avoid using all CPU - since some interfaces needs to access
+     * keyboard events, a 100ms delay is a good compromise */
+    p_intf->p_sys->i_timeout = gtk_timeout_add( INTF_IDLE_SLEEP / 1000,
+                                                GnomeManage, p_intf );
+
+    /* enter gnome mode */
+    gtk_main();
+
+    /* launch stored callbacks */
+    if( p_intf->p_sys->pf_gtk_callback != NULL )
     {
-        p_intf->p_sys->b_mouse = 0;
+        p_intf->p_sys->pf_gtk_callback();
 
-        if( !b_cursor )
+        if( p_intf->p_sys->pf_gdk_callback != NULL )
         {
-            XColor color;
-            Pixmap blank = XCreatePixmap( p_intf->p_sys->p_display,
-                               DefaultRootWindow(p_intf->p_sys->p_display),
-                               1, 1, 1 );
-
-            XParseColor( p_intf->p_sys->p_display,
-                         XCreateColormap( p_intf->p_sys->p_display,
-                                          DefaultRootWindow(
-                                                  p_intf->p_sys->p_display ),
-                                          DefaultVisual(
-                                                  p_intf->p_sys->p_display,
-                                                  p_intf->p_sys->i_screen ),
-                                          AllocNone ),
-                         "black", &color );
-
-            cursor = XCreatePixmapCursor( p_intf->p_sys->p_display,
-                           blank, blank, &color, &color, 1, 1 );
-
-            b_cursor = 1;
+            p_intf->p_sys->pf_gdk_callback();
         }
-        XDefineCursor( p_intf->p_sys->p_display,
-                       p_intf->p_sys->window, cursor );
-    }
-    else
-    {
-        p_intf->p_sys->b_mouse = 1;
-
-        XUndefineCursor( p_intf->p_sys->p_display, p_intf->p_sys->window );
     }
 }
 
-/*****************************************************************************
- * GnomeManageInterface: manage messages from the Gnome interface
+/* following functions are local */
 
+/*****************************************************************************
+ * GnomeManage: manage main thread messages
  *****************************************************************************
  * In this function, called approx. 10 times a second, we check what the
- * Gnome interface wanted to tell us.
+ * main program wanted to tell us.
  *****************************************************************************/
-static void GnomeManageInterface( intf_thread_t *p_intf )
+static gint GnomeManage( gpointer p_data )
 {
-    gnome_thread_t *p_gnome = p_intf->p_sys->p_gnome;
+    intf_thread_t *p_intf = (void *)p_data;
 
-    /* lock the change structure */
-    vlc_mutex_lock( &p_gnome->change_lock );
+    vlc_mutex_lock( &p_intf->p_sys->change_lock );
 
-    /* you killed my father, prepare to die */
-    if( p_gnome->b_die )
+    /* If the "display popup" flag has changed */
+    if( p_intf->b_menu_change )
     {
-        p_intf->b_die = 1;
+        gnome_popup_menu_do_popup( p_intf->p_sys->p_popup,
+                                   NULL, NULL, NULL, NULL );
+        p_intf->b_menu_change = 0;
     }
 
-    if( p_gnome->b_activity_changed )
+    /* Manage the slider */
+    if( p_intf->p_input != NULL && p_intf->p_sys->p_window != NULL
+         && p_intf->p_sys->b_scale_isfree )
     {
-        vlc_mutex_lock( &p_intf->p_vout->picture_lock );
-        p_intf->p_vout->b_active = p_gnome->b_activity;
-        /* having to access p_main sucks */
-        p_main->p_aout->b_active = p_gnome->b_activity;
-        vlc_mutex_unlock( &p_intf->p_vout->picture_lock );
-
-        p_gnome->b_activity_changed = 0;
+        GtkWidget *p_scale;
+        GtkAdjustment *p_adj;
+   
+        p_scale = GTK_WIDGET( gtk_object_get_data( GTK_OBJECT(
+                                  p_intf->p_sys->p_window ), "hscale" ) );
+        p_adj = gtk_range_get_adjustment ( GTK_RANGE( p_scale ) );
+
+        /* Update the value */
+        p_adj->value = ( 100. * p_intf->p_input->stream.pp_areas[0]->i_tell )
+                           / p_intf->p_input->stream.pp_areas[0]->i_size;
+
+        /* Gtv does it this way. Why not. */
+        gtk_range_set_adjustment ( GTK_RANGE( p_scale ), p_adj );
+        gtk_range_slider_update ( GTK_RANGE( p_scale ) );
+        gtk_range_clear_background ( GTK_RANGE( p_scale ) );
+        gtk_range_draw_background ( GTK_RANGE( p_scale ) );
     }
 
-    /* unlock the change structure */
-    vlc_mutex_unlock( &p_gnome->change_lock );
-}
-
-/*****************************************************************************
- * GnomeManageMain: manage main thread messages
- *****************************************************************************
- * In this function, called approx. 10 times a second, we check what the
- * main program wanted to tell us.
- *****************************************************************************/
-static gint GnomeManageMain( gpointer p_data )
-{
-    gnome_thread_t *p_gnome = (void *)p_data;
-
-    /* lock the change structure */
-    vlc_mutex_lock( &p_gnome->change_lock );
+    /* Manage core vlc functions through the callback */
+    p_intf->pf_manage( p_intf );
 
-    if( p_gnome->b_die )
+    if( p_intf->b_die )
     {
-        /* unlock the change structure */
-        vlc_mutex_unlock( &p_gnome->change_lock );
+        /* Make sure we won't be called again */
+        gtk_timeout_remove( p_intf->p_sys->i_timeout );
 
-        /* prepare to die, young man */
+        vlc_mutex_unlock( &p_intf->p_sys->change_lock );
+
+        /* Prepare to die, young Skywalker */
         gtk_main_quit();
         return( FALSE );
     }
 
-    /* if the "display popup" flag has changed */
-    if( p_gnome->b_popup_changed )
-    {
-        gnome_popup_menu_do_popup( p_gnome->p_popup,
-                                   NULL, NULL, NULL, NULL );
-        p_gnome->b_popup_changed = 0;
-    }
-
-    /* unlock the change structure */
-    vlc_mutex_unlock( &p_gnome->change_lock );
+    vlc_mutex_unlock( &p_intf->p_sys->change_lock );
 
     return( TRUE );
 }
 
-/*****************************************************************************
- * GnomeThread: special Gnome thread
- *****************************************************************************
- * this part of the interface is in a separate thread so that we can call
- * gtk_main() from within it without annoying the rest of the program.
- * XXX: the approach may look kludgy, and probably is, but I could not find
- * a better way to dynamically load a Gnome interface at runtime.
- *****************************************************************************/
-void GnomeThread( gnome_thread_t *p_gnome )
-{
-    /* gnome_init needs to know the command line. We don't care, so we
-     * give it an empty one */
-    char *p_args[] = { };
-
-    /* Sleep to avoid using all CPU - since some interfaces needs to access
-     * keyboard events, a 100ms delay is a good compromise */
-    gtk_timeout_add( INTF_IDLE_SLEEP / 1000, GnomeManageMain, p_gnome );
-    gnome_init( "vlc", VERSION, 1, p_args );
-
-    /* create some useful widgets that will certainly be used */
-    p_gnome->p_window = create_intf_window();
-    p_gnome->p_popup = create_intf_popup( );
-
-    /* we don't create these ones yet because we perhaps won't need them */
-    p_gnome->p_about = NULL;
-    p_gnome->p_playlist = NULL;
-
-    /* store p_sys to keep an eye on it */
-    gtk_object_set_data( GTK_OBJECT(p_gnome->p_window), "p_gnome", p_gnome );
-    gtk_object_set_data( GTK_OBJECT(p_gnome->p_popup), "p_gnome", p_gnome );
-
-    /* show the control window */
-    //gtk_widget_show( p_gnome->p_window );
-
-    /* enter gnome mode */
-    gtk_main();
-}
-