git.sesse.net Git - vlc/blob - modules/gui/pda/pda.c

   1 /*****************************************************************************
   2  * pda.c : PDA Gtk2 plugin for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2002 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Jean-Paul Saman <jpsaman  _at_ videolan _dot_ org>
   8  *          Marc Ariberti <marcari@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #include <errno.h>                                                 /* ENOMEM */
  29
  30 #include <vlc/vlc.h>
  31 #include <vlc_input.h>
  32 #include <vlc_interface.h>
  33 #include <vlc_playlist.h>
  34
  35 #include <gtk/gtk.h>
  36
  37 #include "pda_callbacks.h"
  38 #include "pda_interface.h"
  39 #include "pda_support.h"
  40 #include "pda.h"
  41
  42 /*****************************************************************************
  43  * Local prototypes.
  44  *****************************************************************************/
  45 static int  Open         ( vlc_object_t * );
  46 static void Close        ( vlc_object_t * );
  47 static void Run          ( intf_thread_t * );
  48
  49 void GtkAutoPlayFile     ( vlc_object_t * );
  50 static int Manage        ( intf_thread_t *p_intf );
  51 void E_(GtkDisplayDate)  ( GtkAdjustment *p_adj, gpointer userdata );
  52 gint E_(GtkModeManage)   ( intf_thread_t * p_intf );
  53
  54 /*****************************************************************************
  55  * Module descriptor
  56  *****************************************************************************/
  57 #define AUTOPLAYFILE_TEXT  N_("Autoplay selected file")
  58 #define AUTOPLAYFILE_LONGTEXT N_("Automatically play a file when selected in the "\
  59         "file selection list")
  60
  61 /*****************************************************************************
  62  * Module descriptor
  63  *****************************************************************************/
  64 vlc_module_begin();
  65     set_description( _("PDA Linux Gtk2+ interface") );
  66     set_category( CAT_INTERFACE );
  67     set_subcategory( SUBCAT_INTERFACE_MAIN );
  68 //    add_bool( "pda-autoplayfile", 1, GtkAutoPlayFile, AUTOPLAYFILE_TEXT, AUTOPLAYFILE_LONGTEXT, VLC_TRUE );
  69     set_capability( "interface", 70 );
  70     set_callbacks( Open, Close );
  71     add_shortcut( "pda" );
  72 vlc_module_end();
  73
  74 /*****************************************************************************
  75  * Open: initialize and create window
  76  *****************************************************************************/
  77 static int Open( vlc_object_t *p_this )
  78 {
  79     intf_thread_t *p_intf = (intf_thread_t *)p_this;
  80
  81     /* Allocate instance and initialize some members */
  82     p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
  83     if( p_intf->p_sys == NULL )
  84     {
  85         msg_Err( p_intf, "out of memory" );
  86         return VLC_ENOMEM;
  87     }
  88
  89 #ifdef NEED_GTK2_MAIN
  90     msg_Dbg( p_intf, "Using gui-helper" );
  91     p_intf->p_sys->p_gtk_main =
  92         module_Need( p_this, "gui-helper", "gtk2", VLC_TRUE );
  93     if( p_intf->p_sys->p_gtk_main == NULL )
  94     {
  95         free( p_intf->p_sys );
  96         return VLC_ENOMOD;
  97     }
  98 #endif
  99
 100     /* Initialize Gtk+ thread */
 101     p_intf->p_sys->p_input = NULL;
 102
 103     p_intf->p_sys->b_autoplayfile = 1;
 104     p_intf->p_sys->b_playing = 0;
 105     p_intf->p_sys->b_slider_free = 1;
 106
 107     p_intf->pf_run = Run;
 108
 109     return VLC_SUCCESS;
 110 }
 111
 112 /*****************************************************************************
 113  * Close: destroy interface window
 114  *****************************************************************************/
 115 static void Close( vlc_object_t *p_this )
 116 {
 117     intf_thread_t *p_intf = (intf_thread_t *)p_this;
 118
 119     if( p_intf->p_sys->p_input )
 120     {
 121         vlc_object_release( p_intf->p_sys->p_input );
 122     }
 123
 124 #ifdef NEED_GTK2_MAIN
 125     msg_Dbg( p_intf, "Releasing gui-helper" );
 126     module_Unneed( p_intf, p_intf->p_sys->p_gtk_main );
 127 #endif
 128
 129     /* Destroy structure */
 130     free( p_intf->p_sys );
 131 }
 132
 133 /*****************************************************************************
 134  * Run: Gtk+ thread
 135  *****************************************************************************
 136  * this part of the interface is in a separate thread so that we can call
 137  * gtk_main() from within it without annoying the rest of the program.
 138  *****************************************************************************/
 139 static void Run( intf_thread_t *p_intf )
 140 {
 141 #ifndef NEED_GTK2_MAIN
 142     /* gtk_init needs to know the command line. We don't care, so we
 143      * give it an empty one */
 144     char  *p_args[] = { "", NULL };
 145     char **pp_args  = p_args;
 146     int    i_args   = 1;
 147     int    i_dummy;
 148 #endif
 149     playlist_t        *p_playlist;
 150     GtkCellRenderer   *p_renderer = NULL;
 151     GtkTreeViewColumn *p_column   = NULL;
 152     GtkListStore      *p_filelist = NULL;
 153     GtkListStore      *p_playlist_store = NULL;
 154
 155 #ifndef NEED_GTK2_MAIN
 156     gtk_set_locale ();
 157     msg_Dbg( p_intf, "Starting pda GTK2+ interface" );
 158     gtk_init( &i_args, &pp_args );
 159 #else
 160     /* Initialize Gtk+ */
 161     msg_Dbg( p_intf, "Starting pda GTK2+ interface thread" );
 162     gdk_threads_enter();
 163 #endif
 164
 165     /* Create some useful widgets that will certainly be used */
 166 /* FIXME: magic path */
 167     add_pixmap_directory("share");
 168     add_pixmap_directory("/usr/share/vlc");
 169
 170     /* Path for pixmaps under linupy 1.4 */
 171     add_pixmap_directory("/usr/local/share/pixmaps/vlc");
 172     /* Path for pixmaps under linupy 2.0 */
 173     add_pixmap_directory("/usr/share/pixmaps/vlc");
 174
 175     p_intf->p_sys->p_window = create_pda();
 176     if (p_intf->p_sys->p_window == NULL)
 177     {
 178         msg_Err( p_intf, "unable to create pda interface" );
 179     }
 180
 181     /* Store p_intf to keep an eye on it */
 182     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
 183                          "p_intf", p_intf );
 184
 185     /* Set the title of the main window */
 186     gtk_window_set_title( GTK_WINDOW(p_intf->p_sys->p_window),
 187                           VOUT_TITLE " (PDA Linux interface)");
 188
 189     /* Get the notebook object */
 190     p_intf->p_sys->p_notebook = GTK_NOTEBOOK( gtk_object_get_data(
 191         GTK_OBJECT( p_intf->p_sys->p_window ), "notebook" ) );
 192
 193     /* Get the slider object */
 194     p_intf->p_sys->p_slider = (GtkHScale*) lookup_widget( p_intf->p_sys->p_window, "timeSlider" );
 195     p_intf->p_sys->p_slider_label = (GtkLabel*) lookup_widget( p_intf->p_sys->p_window, "timeLabel" );
 196     if (p_intf->p_sys->p_slider == NULL)
 197         msg_Err( p_intf, "Time slider widget not found." );
 198     if (p_intf->p_sys->p_slider_label == NULL)
 199         msg_Err( p_intf, "Time label widget not found." );
 200
 201     /* Connect the date display to the slider */
 202     p_intf->p_sys->p_adj = gtk_range_get_adjustment( GTK_RANGE(p_intf->p_sys->p_slider) );
 203     if (p_intf->p_sys->p_adj == NULL)
 204         msg_Err( p_intf, "Adjustment range not found." );
 205     g_signal_connect( GTK_OBJECT( p_intf->p_sys->p_adj ), "value_changed",
 206                          G_CALLBACK( E_(GtkDisplayDate) ), p_intf );
 207     p_intf->p_sys->f_adj_oldvalue = 0;
 208     p_intf->p_sys->i_adj_oldvalue = 0;
 209
 210     /* BEGIN OF FILEVIEW GTK_TREE_VIEW */
 211     p_intf->p_sys->p_tvfile = NULL;
 212     p_intf->p_sys->p_tvfile = (GtkTreeView *) lookup_widget( p_intf->p_sys->p_window,
 213                                                              "tvFileList");
 214     if (NULL == p_intf->p_sys->p_tvfile)
 215        msg_Err(p_intf, "Error obtaining pointer to File List");
 216
 217     /* Insert columns 0 */
 218     p_renderer = gtk_cell_renderer_text_new ();
 219     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 0, (gchar *) N_("Filename"), p_renderer, NULL);
 220     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 0 );
 221     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 0 );
 222     gtk_tree_view_column_set_sort_column_id(p_column, 0);
 223     /* Insert columns 1 */
 224     p_renderer = gtk_cell_renderer_text_new ();
 225     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 1, (gchar *) N_("Permissions"), p_renderer, NULL);
 226     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 1 );
 227     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 1 );
 228     gtk_tree_view_column_set_sort_column_id(p_column, 1);
 229     /* Insert columns 2 */
 230     p_renderer = gtk_cell_renderer_text_new ();
 231     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 2, (gchar *) N_("Size"), p_renderer, NULL);
 232     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 2 );
 233     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 2 );
 234     gtk_tree_view_column_set_sort_column_id(p_column, 2);
 235     /* Insert columns 3 */
 236     p_renderer = gtk_cell_renderer_text_new ();
 237     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 3, (gchar *) N_("Owner"), p_renderer, NULL);
 238     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 3 );
 239     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 3 );
 240     gtk_tree_view_column_set_sort_column_id(p_column, 3);
 241     /* Insert columns 4 */
 242     p_renderer = gtk_cell_renderer_text_new ();
 243     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 4, (gchar *) N_("Group"), p_renderer, NULL);
 244     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 4 );
 245     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 4 );
 246     gtk_tree_view_column_set_sort_column_id(p_column, 4);
 247
 248     /* Get new directory listing */
 249     p_filelist = gtk_list_store_new (5,
 250                 G_TYPE_STRING, /* Filename */
 251                 G_TYPE_STRING, /* permissions */
 252                 G_TYPE_UINT64, /* File size */
 253                 G_TYPE_STRING, /* Owner */
 254                 G_TYPE_STRING);/* Group */
 255     ReadDirectory(p_intf, p_filelist, ".");
 256     gtk_tree_view_set_model(GTK_TREE_VIEW(p_intf->p_sys->p_tvfile), GTK_TREE_MODEL(p_filelist));
 257     g_object_unref(p_filelist);     /* Model will be released by GtkTreeView */
 258     gtk_tree_selection_set_mode(gtk_tree_view_get_selection(GTK_TREE_VIEW(p_intf->p_sys->p_tvfile)),GTK_SELECTION_MULTIPLE);
 259
 260     /* Column properties */
 261     gtk_tree_view_set_headers_visible(p_intf->p_sys->p_tvfile, TRUE);
 262     gtk_tree_view_columns_autosize(p_intf->p_sys->p_tvfile);
 263     gtk_tree_view_set_headers_clickable(GTK_TREE_VIEW(p_intf->p_sys->p_tvfile),TRUE);
 264     /* END OF FILEVIEW GTK_TREE_VIEW */
 265
 266     /* BEGIN OF PLAYLIST GTK_TREE_VIEW */
 267     p_intf->p_sys->p_tvplaylist = NULL;
 268     p_intf->p_sys->p_tvplaylist = (GtkTreeView *) lookup_widget( p_intf->p_sys->p_window, "tvPlaylist");
 269     if (NULL == p_intf->p_sys->p_tvplaylist)
 270        msg_Err(p_intf, "Error obtaining pointer to Play List");
 271
 272     /* Columns 1 */
 273     p_renderer = gtk_cell_renderer_text_new ();
 274     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvplaylist, 0, (gchar *) N_("Filename"), p_renderer, NULL);
 275     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvplaylist, 0 );
 276     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 0 );
 277     gtk_tree_view_column_set_sort_column_id(p_column, 0);
 278     /* Column 2 */
 279     p_renderer = gtk_cell_renderer_text_new ();
 280     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvplaylist, 1, (gchar *) N_("Time"), p_renderer, NULL);
 281     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvplaylist, 1 );
 282     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 1 );
 283     gtk_tree_view_column_set_sort_column_id(p_column, 1);
 284 #if 0
 285     /* Column 3 - is a hidden column used for reliable deleting items from the underlying playlist */
 286     p_renderer = gtk_cell_renderer_text_new ();
 287     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvplaylist, 2, (gchar *) N_("Index"), p_renderer, NULL);
 288     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvplaylist, 2 );
 289     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 2 );
 290     gtk_tree_view_column_set_sort_column_id(p_column, 2);
 291 #endif
 292     /* update the playlist */
 293     p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 294     p_playlist_store = gtk_list_store_new (3,
 295                 G_TYPE_STRING, /* Filename */
 296                 G_TYPE_STRING, /* Time */
 297                 G_TYPE_UINT);  /* Hidden index */
 298     PlaylistRebuildListStore(p_intf,p_playlist_store, p_playlist);
 299     gtk_tree_view_set_model(GTK_TREE_VIEW(p_intf->p_sys->p_tvplaylist), GTK_TREE_MODEL(p_playlist_store));
 300     g_object_unref(p_playlist_store);
 301     vlc_object_release(p_playlist); /* Free the playlist */
 302     gtk_tree_selection_set_mode(gtk_tree_view_get_selection(GTK_TREE_VIEW(p_intf->p_sys->p_tvplaylist)),GTK_SELECTION_MULTIPLE);
 303
 304     /* Column properties */
 305     gtk_tree_view_set_headers_visible(p_intf->p_sys->p_tvplaylist, TRUE);
 306     gtk_tree_view_columns_autosize(p_intf->p_sys->p_tvplaylist);
 307     gtk_tree_view_set_headers_clickable(p_intf->p_sys->p_tvplaylist, TRUE);
 308     /* END OF PLAYLIST GTK_TREE_VIEW */
 309
 310     /* Hide the Preference TAB for now. */
 311     GtkWidget *p_preference_tab = NULL;
 312     p_preference_tab = gtk_notebook_get_nth_page(p_intf->p_sys->p_notebook,5);
 313     if (p_preference_tab != NULL)
 314       gtk_widget_hide(p_preference_tab);
 315
 316     /* Show the control window */
 317     gtk_widget_show( p_intf->p_sys->p_window );
 318
 319 #ifdef NEED_GTK2_MAIN
 320     msg_Dbg( p_intf, "Manage GTK keyboard events using threads" );
 321     while( !intf_ShouldDie( p_intf ) )
 322     {
 323         Manage( p_intf );
 324
 325         /* Sleep to avoid using all CPU - since some interfaces need to
 326          * access keyboard events, a 100ms delay is a good compromise */
 327         gdk_threads_leave();
 328         if (vlc_CPU() & CPU_CAPABILITY_FPU)
 329             msleep( INTF_IDLE_SLEEP );
 330         else
 331             msleep( 1000 );
 332         gdk_threads_enter();
 333     }
 334 #else
 335     msg_Dbg( p_intf, "Manage GTK keyboard events using timeouts" );
 336     /* Sleep to avoid using all CPU - since some interfaces needs to access
 337      * keyboard events, a 1000ms delay is a good compromise */
 338     if (vlc_CPU() & CPU_CAPABILITY_FPU)
 339         i_dummy = gtk_timeout_add( INTF_IDLE_SLEEP / 1000, (GtkFunction)Manage, p_intf );
 340     else
 341         i_dummy = gtk_timeout_add( 1000, (GtkFunction)Manage, p_intf );
 342
 343     /* Enter Gtk mode */
 344     gtk_main();
 345     /* Remove the timeout */
 346     gtk_timeout_remove( i_dummy );
 347 #endif
 348
 349     gtk_object_destroy( GTK_OBJECT(p_intf->p_sys->p_window) );
 350 #ifdef NEED_GTK2_MAIN
 351     gdk_threads_leave();
 352 #endif
 353 }
 354
 355 /*****************************************************************************
 356  * GtkAutoplayFile: Autoplay file depending on configuration settings
 357  *****************************************************************************/
 358 void GtkAutoPlayFile( vlc_object_t *p_this )
 359 {
 360     GtkWidget *cbautoplay;
 361     intf_thread_t *p_intf;
 362     int i_index;
 363     vlc_list_t *p_list = vlc_list_find( p_this, VLC_OBJECT_INTF,
 364                                         FIND_ANYWHERE );
 365
 366     for( i_index = 0; i_index < p_list->i_count; i_index++ )
 367     {
 368         p_intf = (intf_thread_t *)p_list->p_values[i_index].p_object ;
 369
 370         if( strcmp( MODULE_STRING, module_GetObjName(p_intf->p_module) ) )
 371         {
 372             continue;
 373         }
 374         cbautoplay = GTK_WIDGET( gtk_object_get_data(
 375                             GTK_OBJECT( p_intf->p_sys->p_window ),
 376                             "cbautoplay" ) );
 377
 378         if( !config_GetInt( p_this, "pda-autoplayfile" ) )
 379         {
 380             p_intf->p_sys->b_autoplayfile = VLC_FALSE;
 381         }
 382         else
 383         {
 384             p_intf->p_sys->b_autoplayfile = VLC_TRUE;
 385         }
 386         gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( cbautoplay ),
 387                                       p_intf->p_sys->b_autoplayfile );
 388     }
 389     vlc_list_release( p_list );
 390 }
 391
 392 /* following functions are local */
 393
 394 /*****************************************************************************
 395  * Manage: manage main thread messages
 396  *****************************************************************************
 397  * In this function, called approx. 10 times a second, we check what the
 398  * main program wanted to tell us.
 399  *****************************************************************************/
 400 static int Manage( intf_thread_t *p_intf )
 401 {
 402     GtkListStore *p_liststore;
 403     vlc_mutex_lock( &p_intf->change_lock );
 404
 405     /* Update the input */
 406     if( p_intf->p_sys->p_input == NULL )
 407     {
 408         p_intf->p_sys->p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 409                                                           FIND_ANYWHERE );
 410     }
 411     else if( p_intf->p_sys->p_input->b_dead )
 412     {
 413         vlc_object_release( p_intf->p_sys->p_input );
 414         p_intf->p_sys->p_input = NULL;
 415     }
 416
 417     if( p_intf->p_sys->p_input )
 418     {
 419         input_thread_t *p_input = p_intf->p_sys->p_input;
 420         int64_t i_time = 0, i_length = 0;
 421
 422         vlc_mutex_lock( &p_input->object_lock );
 423         if( !p_input->b_die )
 424         {
 425             playlist_t *p_playlist;
 426
 427             E_(GtkModeManage)( p_intf );
 428             p_intf->p_sys->b_playing = 1;
 429
 430             /* update playlist interface */
 431             p_playlist = (playlist_t *) vlc_object_find(
 432                     p_intf, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 433             if (p_playlist != NULL)
 434             {
 435                 p_liststore = gtk_list_store_new (3,
 436                                             G_TYPE_STRING,
 437                                             G_TYPE_STRING,
 438                                             G_TYPE_UINT);  /* Hidden index */
 439                 PlaylistRebuildListStore(p_intf, p_liststore, p_playlist);
 440                 gtk_tree_view_set_model(p_intf->p_sys->p_tvplaylist, (GtkTreeModel*) p_liststore);
 441                 g_object_unref(p_liststore);
 442                 vlc_object_release( p_playlist );
 443             }
 444
 445             /* Manage the slider */
 446             i_time = var_GetTime( p_intf->p_sys->p_input, "time" );
 447             i_length = var_GetTime( p_intf->p_sys->p_input, "length" );
 448
 449             if (vlc_CPU() & CPU_CAPABILITY_FPU)
 450             {
 451                 /* Manage the slider for CPU_CAPABILITY_FPU hardware */
 452                 if( p_intf->p_sys->b_playing )
 453                 {
 454                     float newvalue = p_intf->p_sys->p_adj->value;
 455
 456                     /* If the user hasn't touched the slider since the last time,
 457                      * then the input can safely change it */
 458                     if( newvalue == p_intf->p_sys->f_adj_oldvalue )
 459                     {
 460                         /* Update the value */
 461                         p_intf->p_sys->p_adj->value =
 462                         p_intf->p_sys->f_adj_oldvalue =
 463                             ( 100 * i_time ) / i_length;
 464                         g_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
 465                                                  "value_changed" );
 466                     }
 467                     /* Otherwise, send message to the input if the user has
 468                      * finished dragging the slider */
 469                     else if( p_intf->p_sys->b_slider_free )
 470                     {
 471                         double f_pos = (double)newvalue / 100.0;
 472
 473                         /* release the lock to be able to seek */
 474                         vlc_mutex_unlock( &p_input->object_lock );
 475                         var_SetFloat( p_input, "position", f_pos );
 476                         vlc_mutex_lock( &p_input->object_lock );
 477
 478                         /* Update the old value */
 479                         p_intf->p_sys->f_adj_oldvalue = newvalue;
 480                     }
 481                 }
 482             }
 483             else
 484             {
 485                 /* Manage the slider without CPU_CAPABILITY_FPU hardware */
 486                 if( p_intf->p_sys->b_playing )
 487                 {
 488                     off_t newvalue = p_intf->p_sys->p_adj->value;
 489
 490                     /* If the user hasn't touched the slider since the last time,
 491                      * then the input can safely change it */
 492                     if( newvalue == p_intf->p_sys->i_adj_oldvalue )
 493                     {
 494                         /* Update the value */
 495                         p_intf->p_sys->p_adj->value =
 496                         p_intf->p_sys->i_adj_oldvalue =
 497                             ( 100 * i_time ) / i_length;
 498                         g_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
 499                                                  "value_changed" );
 500                     }
 501                     /* Otherwise, send message to the input if the user has
 502                      * finished dragging the slider */
 503                     else if( p_intf->p_sys->b_slider_free )
 504                     {
 505                         double f_pos = (double)newvalue / 100.0;
 506
 507                         /* release the lock to be able to seek */
 508                         vlc_mutex_unlock( &p_input->object_lock );
 509                         var_SetFloat( p_input, "position", f_pos );
 510                         vlc_mutex_lock( &p_input->object_lock );
 511
 512                         /* Update the old value */
 513                         p_intf->p_sys->i_adj_oldvalue = newvalue;
 514                     }
 515                 }
 516             }
 517         }
 518         vlc_mutex_unlock( &p_input->object_lock );
 519     }
 520     else if( p_intf->p_sys->b_playing && !intf_ShouldDie( p_intf ) )
 521     {
 522         E_(GtkModeManage)( p_intf );
 523         p_intf->p_sys->b_playing = 0;
 524     }
 525
 526 #ifndef NEED_GTK2_MAIN
 527     if( intf_ShouldDie( p_intf ) )
 528     {
 529         vlc_mutex_unlock( &p_intf->change_lock );
 530
 531         /* Prepare to die, young Skywalker */
 532         gtk_main_quit();
 533
 534         return FALSE;
 535     }
 536 #endif
 537
 538     vlc_mutex_unlock( &p_intf->change_lock );
 539
 540     return TRUE;
 541 }
 542
 543 /*****************************************************************************
 544  * GtkDisplayDate: display stream date
 545  *****************************************************************************
 546  * This function displays the current date related to the position in
 547  * the stream. It is called whenever the slider changes its value.
 548  * The lock has to be taken before you call the function.
 549  *****************************************************************************/
 550 void E_(GtkDisplayDate)( GtkAdjustment *p_adj, gpointer userdata )
 551 {
 552     intf_thread_t *p_intf;
 553
 554     p_intf = (intf_thread_t*) userdata;
 555     if (p_intf == NULL)
 556         return;
 557
 558     if( p_intf->p_sys->p_input )
 559     {
 560         char psz_time[ MSTRTIME_MAX_SIZE ];
 561         int64_t i_seconds;
 562
 563         i_seconds = var_GetTime( p_intf->p_sys->p_input, "time" ) / I64C(1000000 );
 564         secstotimestr( psz_time, i_seconds );
 565
 566         gtk_label_set_text( GTK_LABEL( p_intf->p_sys->p_slider_label ),
 567                             psz_time );
 568      }
 569 }
 570
 571 /*****************************************************************************
 572  * GtkModeManage: actualize the aspect of the interface whenever the input
 573  *                changes.
 574  *****************************************************************************
 575  * The lock has to be taken before you call the function.
 576  *****************************************************************************/
 577 gint E_(GtkModeManage)( intf_thread_t * p_intf )
 578 {
 579     GtkWidget *     p_slider = NULL;
 580     vlc_bool_t      b_control;
 581
 582     if ( p_intf->p_sys->p_window == NULL )
 583         msg_Err( p_intf, "Main widget not found" );
 584
 585     p_slider = lookup_widget( p_intf->p_sys->p_window, "timeSlider");
 586     if (p_slider == NULL)
 587         msg_Err( p_intf, "Slider widget not found" );
 588
 589     /* controls unavailable */
 590     b_control = 0;
 591
 592     /* show the box related to current input mode */
 593     if( p_intf->p_sys->p_input )
 594     {
 595         /* initialize and show slider for seekable streams */
 596         {
 597             gtk_widget_show( GTK_WIDGET( p_slider ) );
 598         }
 599
 600         /* control buttons for free pace streams */
 601         b_control = p_intf->p_sys->p_input->b_can_pace_control;
 602
 603         msg_Dbg( p_intf, "stream has changed, refreshing interface" );
 604     }
 605
 606     /* set control items */
 607     gtk_widget_set_sensitive( lookup_widget( p_intf->p_sys->p_window, "tbRewind"), b_control );
 608     gtk_widget_set_sensitive( lookup_widget( p_intf->p_sys->p_window, "tbPause"), b_control );
 609     gtk_widget_set_sensitive( lookup_widget( p_intf->p_sys->p_window, "tbForward"), b_control );
 610     return TRUE;
 611 }