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 #ifdef HAVE_CONFIG_H
  31 # include "config.h"
  32 #endif
  33
  34 #include <vlc/vlc.h>
  35 #include <vlc_input.h>
  36 #include <vlc_interface.h>
  37 #include <vlc_playlist.h>
  38
  39 #include <gtk/gtk.h>
  40
  41 #include "pda_callbacks.h"
  42 #include "pda_interface.h"
  43 #include "pda_support.h"
  44 #include "pda.h"
  45
  46 /*****************************************************************************
  47  * Local prototypes.
  48  *****************************************************************************/
  49 static int  Open         ( vlc_object_t * );
  50 static void Close        ( vlc_object_t * );
  51 static void Run          ( intf_thread_t * );
  52
  53 void GtkAutoPlayFile     ( vlc_object_t * );
  54 static int Manage        ( intf_thread_t *p_intf );
  55 void E_(GtkDisplayDate)  ( GtkAdjustment *p_adj, gpointer userdata );
  56 gint E_(GtkModeManage)   ( intf_thread_t * p_intf );
  57
  58 /*****************************************************************************
  59  * Module descriptor
  60  *****************************************************************************/
  61 #define AUTOPLAYFILE_TEXT  N_("Autoplay selected file")
  62 #define AUTOPLAYFILE_LONGTEXT N_("Automatically play a file when selected in the "\
  63         "file selection list")
  64
  65 /*****************************************************************************
  66  * Module descriptor
  67  *****************************************************************************/
  68 vlc_module_begin();
  69     set_description( _("PDA Linux Gtk2+ interface") );
  70     set_category( CAT_INTERFACE );
  71     set_subcategory( SUBCAT_INTERFACE_MAIN );
  72 //    add_bool( "pda-autoplayfile", 1, GtkAutoPlayFile, AUTOPLAYFILE_TEXT, AUTOPLAYFILE_LONGTEXT, VLC_TRUE );
  73     set_capability( "interface", 70 );
  74     set_callbacks( Open, Close );
  75     add_shortcut( "pda" );
  76 vlc_module_end();
  77
  78 /*****************************************************************************
  79  * Open: initialize and create window
  80  *****************************************************************************/
  81 static int Open( vlc_object_t *p_this )
  82 {
  83     intf_thread_t *p_intf = (intf_thread_t *)p_this;
  84
  85     /* Allocate instance and initialize some members */
  86     p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
  87     if( p_intf->p_sys == NULL )
  88     {
  89         msg_Err( p_intf, "out of memory" );
  90         return VLC_ENOMEM;
  91     }
  92
  93 #ifdef NEED_GTK2_MAIN
  94     msg_Dbg( p_intf, "Using gui-helper" );
  95     p_intf->p_sys->p_gtk_main =
  96         module_Need( p_this, "gui-helper", "gtk2", VLC_TRUE );
  97     if( p_intf->p_sys->p_gtk_main == NULL )
  98     {
  99         free( p_intf->p_sys );
 100         return VLC_ENOMOD;
 101     }
 102 #endif
 103
 104     /* Initialize Gtk+ thread */
 105     p_intf->p_sys->p_input = NULL;
 106
 107     p_intf->p_sys->b_autoplayfile = 1;
 108     p_intf->p_sys->b_playing = 0;
 109     p_intf->p_sys->b_slider_free = 1;
 110
 111     p_intf->pf_run = Run;
 112
 113     return VLC_SUCCESS;
 114 }
 115
 116 /*****************************************************************************
 117  * Close: destroy interface window
 118  *****************************************************************************/
 119 static void Close( vlc_object_t *p_this )
 120 {
 121     intf_thread_t *p_intf = (intf_thread_t *)p_this;
 122
 123     if( p_intf->p_sys->p_input )
 124     {
 125         vlc_object_release( p_intf->p_sys->p_input );
 126     }
 127
 128 #ifdef NEED_GTK2_MAIN
 129     msg_Dbg( p_intf, "Releasing gui-helper" );
 130     module_Unneed( p_intf, p_intf->p_sys->p_gtk_main );
 131 #endif
 132
 133     /* Destroy structure */
 134     free( p_intf->p_sys );
 135 }
 136
 137 /*****************************************************************************
 138  * Run: Gtk+ thread
 139  *****************************************************************************
 140  * this part of the interface is in a separate thread so that we can call
 141  * gtk_main() from within it without annoying the rest of the program.
 142  *****************************************************************************/
 143 static void Run( intf_thread_t *p_intf )
 144 {
 145 #ifndef NEED_GTK2_MAIN
 146     /* gtk_init needs to know the command line. We don't care, so we
 147      * give it an empty one */
 148     char  *p_args[] = { "", NULL };
 149     char **pp_args  = p_args;
 150     int    i_args   = 1;
 151     int    i_dummy;
 152 #endif
 153     playlist_t        *p_playlist;
 154     GtkCellRenderer   *p_renderer = NULL;
 155     GtkTreeViewColumn *p_column   = NULL;
 156     GtkListStore      *p_filelist = NULL;
 157     GtkListStore      *p_playlist_store = NULL;
 158
 159 #ifndef NEED_GTK2_MAIN
 160     gtk_set_locale ();
 161     msg_Dbg( p_intf, "Starting pda GTK2+ interface" );
 162     gtk_init( &i_args, &pp_args );
 163 #else
 164     /* Initialize Gtk+ */
 165     msg_Dbg( p_intf, "Starting pda GTK2+ interface thread" );
 166     gdk_threads_enter();
 167 #endif
 168
 169     /* Create some useful widgets that will certainly be used */
 170 /* FIXME: magic path */
 171     add_pixmap_directory("share");
 172     add_pixmap_directory("/usr/share/vlc");
 173
 174     /* Path for pixmaps under linupy 1.4 */
 175     add_pixmap_directory("/usr/local/share/pixmaps/vlc");
 176     /* Path for pixmaps under linupy 2.0 */
 177     add_pixmap_directory("/usr/share/pixmaps/vlc");
 178
 179     p_intf->p_sys->p_window = create_pda();
 180     if (p_intf->p_sys->p_window == NULL)
 181     {
 182         msg_Err( p_intf, "unable to create pda interface" );
 183     }
 184
 185     /* Store p_intf to keep an eye on it */
 186     gtk_object_set_data( GTK_OBJECT(p_intf->p_sys->p_window),
 187                          "p_intf", p_intf );
 188
 189     /* Set the title of the main window */
 190     gtk_window_set_title( GTK_WINDOW(p_intf->p_sys->p_window),
 191                           VOUT_TITLE " (PDA Linux interface)");
 192
 193     /* Get the notebook object */
 194     p_intf->p_sys->p_notebook = GTK_NOTEBOOK( gtk_object_get_data(
 195         GTK_OBJECT( p_intf->p_sys->p_window ), "notebook" ) );
 196
 197     /* Get the slider object */
 198     p_intf->p_sys->p_slider = (GtkHScale*) lookup_widget( p_intf->p_sys->p_window, "timeSlider" );
 199     p_intf->p_sys->p_slider_label = (GtkLabel*) lookup_widget( p_intf->p_sys->p_window, "timeLabel" );
 200     if (p_intf->p_sys->p_slider == NULL)
 201         msg_Err( p_intf, "Time slider widget not found." );
 202     if (p_intf->p_sys->p_slider_label == NULL)
 203         msg_Err( p_intf, "Time label widget not found." );
 204
 205     /* Connect the date display to the slider */
 206     p_intf->p_sys->p_adj = gtk_range_get_adjustment( GTK_RANGE(p_intf->p_sys->p_slider) );
 207     if (p_intf->p_sys->p_adj == NULL)
 208         msg_Err( p_intf, "Adjustment range not found." );
 209     g_signal_connect( GTK_OBJECT( p_intf->p_sys->p_adj ), "value_changed",
 210                          G_CALLBACK( E_(GtkDisplayDate) ), p_intf );
 211     p_intf->p_sys->f_adj_oldvalue = 0;
 212     p_intf->p_sys->i_adj_oldvalue = 0;
 213
 214     /* BEGIN OF FILEVIEW GTK_TREE_VIEW */
 215     p_intf->p_sys->p_tvfile = NULL;
 216     p_intf->p_sys->p_tvfile = (GtkTreeView *) lookup_widget( p_intf->p_sys->p_window,
 217                                                              "tvFileList");
 218     if (NULL == p_intf->p_sys->p_tvfile)
 219        msg_Err(p_intf, "Error obtaining pointer to File List");
 220
 221     /* Insert columns 0 */
 222     p_renderer = gtk_cell_renderer_text_new ();
 223     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 0, (gchar *) N_("Filename"), p_renderer, NULL);
 224     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 0 );
 225     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 0 );
 226     gtk_tree_view_column_set_sort_column_id(p_column, 0);
 227     /* Insert columns 1 */
 228     p_renderer = gtk_cell_renderer_text_new ();
 229     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 1, (gchar *) N_("Permissions"), p_renderer, NULL);
 230     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 1 );
 231     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 1 );
 232     gtk_tree_view_column_set_sort_column_id(p_column, 1);
 233     /* Insert columns 2 */
 234     p_renderer = gtk_cell_renderer_text_new ();
 235     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 2, (gchar *) N_("Size"), p_renderer, NULL);
 236     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 2 );
 237     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 2 );
 238     gtk_tree_view_column_set_sort_column_id(p_column, 2);
 239     /* Insert columns 3 */
 240     p_renderer = gtk_cell_renderer_text_new ();
 241     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 3, (gchar *) N_("Owner"), p_renderer, NULL);
 242     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 3 );
 243     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 3 );
 244     gtk_tree_view_column_set_sort_column_id(p_column, 3);
 245     /* Insert columns 4 */
 246     p_renderer = gtk_cell_renderer_text_new ();
 247     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvfile, 4, (gchar *) N_("Group"), p_renderer, NULL);
 248     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvfile, 4 );
 249     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 4 );
 250     gtk_tree_view_column_set_sort_column_id(p_column, 4);
 251
 252     /* Get new directory listing */
 253     p_filelist = gtk_list_store_new (5,
 254                 G_TYPE_STRING, /* Filename */
 255                 G_TYPE_STRING, /* permissions */
 256                 G_TYPE_UINT64, /* File size */
 257                 G_TYPE_STRING, /* Owner */
 258                 G_TYPE_STRING);/* Group */
 259     ReadDirectory(p_intf, p_filelist, ".");
 260     gtk_tree_view_set_model(GTK_TREE_VIEW(p_intf->p_sys->p_tvfile), GTK_TREE_MODEL(p_filelist));
 261     g_object_unref(p_filelist);     /* Model will be released by GtkTreeView */
 262     gtk_tree_selection_set_mode(gtk_tree_view_get_selection(GTK_TREE_VIEW(p_intf->p_sys->p_tvfile)),GTK_SELECTION_MULTIPLE);
 263
 264     /* Column properties */
 265     gtk_tree_view_set_headers_visible(p_intf->p_sys->p_tvfile, TRUE);
 266     gtk_tree_view_columns_autosize(p_intf->p_sys->p_tvfile);
 267     gtk_tree_view_set_headers_clickable(GTK_TREE_VIEW(p_intf->p_sys->p_tvfile),TRUE);
 268     /* END OF FILEVIEW GTK_TREE_VIEW */
 269
 270     /* BEGIN OF PLAYLIST GTK_TREE_VIEW */
 271     p_intf->p_sys->p_tvplaylist = NULL;
 272     p_intf->p_sys->p_tvplaylist = (GtkTreeView *) lookup_widget( p_intf->p_sys->p_window, "tvPlaylist");
 273     if (NULL == p_intf->p_sys->p_tvplaylist)
 274        msg_Err(p_intf, "Error obtaining pointer to Play List");
 275
 276     /* Columns 1 */
 277     p_renderer = gtk_cell_renderer_text_new ();
 278     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvplaylist, 0, (gchar *) N_("Filename"), p_renderer, NULL);
 279     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvplaylist, 0 );
 280     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 0 );
 281     gtk_tree_view_column_set_sort_column_id(p_column, 0);
 282     /* Column 2 */
 283     p_renderer = gtk_cell_renderer_text_new ();
 284     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvplaylist, 1, (gchar *) N_("Time"), p_renderer, NULL);
 285     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvplaylist, 1 );
 286     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 1 );
 287     gtk_tree_view_column_set_sort_column_id(p_column, 1);
 288 #if 0
 289     /* Column 3 - is a hidden column used for reliable deleting items from the underlying playlist */
 290     p_renderer = gtk_cell_renderer_text_new ();
 291     gtk_tree_view_insert_column_with_attributes(p_intf->p_sys->p_tvplaylist, 2, (gchar *) N_("Index"), p_renderer, NULL);
 292     p_column = gtk_tree_view_get_column(p_intf->p_sys->p_tvplaylist, 2 );
 293     gtk_tree_view_column_add_attribute(p_column, p_renderer, "text", 2 );
 294     gtk_tree_view_column_set_sort_column_id(p_column, 2);
 295 #endif
 296     /* update the playlist */
 297     p_playlist = vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 298     p_playlist_store = gtk_list_store_new (3,
 299                 G_TYPE_STRING, /* Filename */
 300                 G_TYPE_STRING, /* Time */
 301                 G_TYPE_UINT);  /* Hidden index */
 302     PlaylistRebuildListStore(p_intf,p_playlist_store, p_playlist);
 303     gtk_tree_view_set_model(GTK_TREE_VIEW(p_intf->p_sys->p_tvplaylist), GTK_TREE_MODEL(p_playlist_store));
 304     g_object_unref(p_playlist_store);
 305     vlc_object_release(p_playlist); /* Free the playlist */
 306     gtk_tree_selection_set_mode(gtk_tree_view_get_selection(GTK_TREE_VIEW(p_intf->p_sys->p_tvplaylist)),GTK_SELECTION_MULTIPLE);
 307
 308     /* Column properties */
 309     gtk_tree_view_set_headers_visible(p_intf->p_sys->p_tvplaylist, TRUE);
 310     gtk_tree_view_columns_autosize(p_intf->p_sys->p_tvplaylist);
 311     gtk_tree_view_set_headers_clickable(p_intf->p_sys->p_tvplaylist, TRUE);
 312     /* END OF PLAYLIST GTK_TREE_VIEW */
 313
 314     /* Hide the Preference TAB for now. */
 315     GtkWidget *p_preference_tab = NULL;
 316     p_preference_tab = gtk_notebook_get_nth_page(p_intf->p_sys->p_notebook,5);
 317     if (p_preference_tab != NULL)
 318       gtk_widget_hide(p_preference_tab);
 319
 320     /* Show the control window */
 321     gtk_widget_show( p_intf->p_sys->p_window );
 322
 323 #ifdef NEED_GTK2_MAIN
 324     msg_Dbg( p_intf, "Manage GTK keyboard events using threads" );
 325     while( !intf_ShouldDie( p_intf ) )
 326     {
 327         Manage( p_intf );
 328
 329         /* Sleep to avoid using all CPU - since some interfaces need to
 330          * access keyboard events, a 100ms delay is a good compromise */
 331         gdk_threads_leave();
 332         if (vlc_CPU() & CPU_CAPABILITY_FPU)
 333             msleep( INTF_IDLE_SLEEP );
 334         else
 335             msleep( 1000 );
 336         gdk_threads_enter();
 337     }
 338 #else
 339     msg_Dbg( p_intf, "Manage GTK keyboard events using timeouts" );
 340     /* Sleep to avoid using all CPU - since some interfaces needs to access
 341      * keyboard events, a 1000ms delay is a good compromise */
 342     if (vlc_CPU() & CPU_CAPABILITY_FPU)
 343         i_dummy = gtk_timeout_add( INTF_IDLE_SLEEP / 1000, (GtkFunction)Manage, p_intf );
 344     else
 345         i_dummy = gtk_timeout_add( 1000, (GtkFunction)Manage, p_intf );
 346
 347     /* Enter Gtk mode */
 348     gtk_main();
 349     /* Remove the timeout */
 350     gtk_timeout_remove( i_dummy );
 351 #endif
 352
 353     gtk_object_destroy( GTK_OBJECT(p_intf->p_sys->p_window) );
 354 #ifdef NEED_GTK2_MAIN
 355     gdk_threads_leave();
 356 #endif
 357 }
 358
 359 /*****************************************************************************
 360  * GtkAutoplayFile: Autoplay file depending on configuration settings
 361  *****************************************************************************/
 362 void GtkAutoPlayFile( vlc_object_t *p_this )
 363 {
 364     GtkWidget *cbautoplay;
 365     intf_thread_t *p_intf;
 366     int i_index;
 367     vlc_list_t *p_list = vlc_list_find( p_this, VLC_OBJECT_INTF,
 368                                         FIND_ANYWHERE );
 369
 370     for( i_index = 0; i_index < p_list->i_count; i_index++ )
 371     {
 372         p_intf = (intf_thread_t *)p_list->p_values[i_index].p_object ;
 373
 374         if( strcmp( MODULE_STRING, module_GetObjName(p_intf->p_module) ) )
 375         {
 376             continue;
 377         }
 378         cbautoplay = GTK_WIDGET( gtk_object_get_data(
 379                             GTK_OBJECT( p_intf->p_sys->p_window ),
 380                             "cbautoplay" ) );
 381
 382         if( !config_GetInt( p_this, "pda-autoplayfile" ) )
 383         {
 384             p_intf->p_sys->b_autoplayfile = VLC_FALSE;
 385         }
 386         else
 387         {
 388             p_intf->p_sys->b_autoplayfile = VLC_TRUE;
 389         }
 390         gtk_toggle_button_set_active( GTK_TOGGLE_BUTTON( cbautoplay ),
 391                                       p_intf->p_sys->b_autoplayfile );
 392     }
 393     vlc_list_release( p_list );
 394 }
 395
 396 /* following functions are local */
 397
 398 /*****************************************************************************
 399  * Manage: manage main thread messages
 400  *****************************************************************************
 401  * In this function, called approx. 10 times a second, we check what the
 402  * main program wanted to tell us.
 403  *****************************************************************************/
 404 static int Manage( intf_thread_t *p_intf )
 405 {
 406     GtkListStore *p_liststore;
 407     vlc_mutex_lock( &p_intf->change_lock );
 408
 409     /* Update the input */
 410     if( p_intf->p_sys->p_input == NULL )
 411     {
 412         p_intf->p_sys->p_input = vlc_object_find( p_intf, VLC_OBJECT_INPUT,
 413                                                           FIND_ANYWHERE );
 414     }
 415     else if( p_intf->p_sys->p_input->b_dead )
 416     {
 417         vlc_object_release( p_intf->p_sys->p_input );
 418         p_intf->p_sys->p_input = NULL;
 419     }
 420
 421     if( p_intf->p_sys->p_input )
 422     {
 423         input_thread_t *p_input = p_intf->p_sys->p_input;
 424         int64_t i_time = 0, i_length = 0;
 425
 426         vlc_mutex_lock( &p_input->object_lock );
 427         if( !p_input->b_die )
 428         {
 429             playlist_t *p_playlist;
 430
 431             E_(GtkModeManage)( p_intf );
 432             p_intf->p_sys->b_playing = 1;
 433
 434             /* update playlist interface */
 435             p_playlist = (playlist_t *) vlc_object_find(
 436                     p_intf, VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
 437             if (p_playlist != NULL)
 438             {
 439                 p_liststore = gtk_list_store_new (3,
 440                                             G_TYPE_STRING,
 441                                             G_TYPE_STRING,
 442                                             G_TYPE_UINT);  /* Hidden index */
 443                 PlaylistRebuildListStore(p_intf, p_liststore, p_playlist);
 444                 gtk_tree_view_set_model(p_intf->p_sys->p_tvplaylist, (GtkTreeModel*) p_liststore);
 445                 g_object_unref(p_liststore);
 446                 vlc_object_release( p_playlist );
 447             }
 448
 449             /* Manage the slider */
 450             i_time = var_GetTime( p_intf->p_sys->p_input, "time" );
 451             i_length = var_GetTime( p_intf->p_sys->p_input, "length" );
 452
 453             if (vlc_CPU() & CPU_CAPABILITY_FPU)
 454             {
 455                 /* Manage the slider for CPU_CAPABILITY_FPU hardware */
 456                 if( p_intf->p_sys->b_playing )
 457                 {
 458                     float newvalue = p_intf->p_sys->p_adj->value;
 459
 460                     /* If the user hasn't touched the slider since the last time,
 461                      * then the input can safely change it */
 462                     if( newvalue == p_intf->p_sys->f_adj_oldvalue )
 463                     {
 464                         /* Update the value */
 465                         p_intf->p_sys->p_adj->value =
 466                         p_intf->p_sys->f_adj_oldvalue =
 467                             ( 100 * i_time ) / i_length;
 468                         g_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
 469                                                  "value_changed" );
 470                     }
 471                     /* Otherwise, send message to the input if the user has
 472                      * finished dragging the slider */
 473                     else if( p_intf->p_sys->b_slider_free )
 474                     {
 475                         double f_pos = (double)newvalue / 100.0;
 476
 477                         /* release the lock to be able to seek */
 478                         vlc_mutex_unlock( &p_input->object_lock );
 479                         var_SetFloat( p_input, "position", f_pos );
 480                         vlc_mutex_lock( &p_input->object_lock );
 481
 482                         /* Update the old value */
 483                         p_intf->p_sys->f_adj_oldvalue = newvalue;
 484                     }
 485                 }
 486             }
 487             else
 488             {
 489                 /* Manage the slider without CPU_CAPABILITY_FPU hardware */
 490                 if( p_intf->p_sys->b_playing )
 491                 {
 492                     off_t newvalue = p_intf->p_sys->p_adj->value;
 493
 494                     /* If the user hasn't touched the slider since the last time,
 495                      * then the input can safely change it */
 496                     if( newvalue == p_intf->p_sys->i_adj_oldvalue )
 497                     {
 498                         /* Update the value */
 499                         p_intf->p_sys->p_adj->value =
 500                         p_intf->p_sys->i_adj_oldvalue =
 501                             ( 100 * i_time ) / i_length;
 502                         g_signal_emit_by_name( GTK_OBJECT( p_intf->p_sys->p_adj ),
 503                                                  "value_changed" );
 504                     }
 505                     /* Otherwise, send message to the input if the user has
 506                      * finished dragging the slider */
 507                     else if( p_intf->p_sys->b_slider_free )
 508                     {
 509                         double f_pos = (double)newvalue / 100.0;
 510
 511                         /* release the lock to be able to seek */
 512                         vlc_mutex_unlock( &p_input->object_lock );
 513                         var_SetFloat( p_input, "position", f_pos );
 514                         vlc_mutex_lock( &p_input->object_lock );
 515
 516                         /* Update the old value */
 517                         p_intf->p_sys->i_adj_oldvalue = newvalue;
 518                     }
 519                 }
 520             }
 521         }
 522         vlc_mutex_unlock( &p_input->object_lock );
 523     }
 524     else if( p_intf->p_sys->b_playing && !intf_ShouldDie( p_intf ) )
 525     {
 526         E_(GtkModeManage)( p_intf );
 527         p_intf->p_sys->b_playing = 0;
 528     }
 529
 530 #ifndef NEED_GTK2_MAIN
 531     if( intf_ShouldDie( p_intf ) )
 532     {
 533         vlc_mutex_unlock( &p_intf->change_lock );
 534
 535         /* Prepare to die, young Skywalker */
 536         gtk_main_quit();
 537
 538         return FALSE;
 539     }
 540 #endif
 541
 542     vlc_mutex_unlock( &p_intf->change_lock );
 543
 544     return TRUE;
 545 }
 546
 547 /*****************************************************************************
 548  * GtkDisplayDate: display stream date
 549  *****************************************************************************
 550  * This function displays the current date related to the position in
 551  * the stream. It is called whenever the slider changes its value.
 552  * The lock has to be taken before you call the function.
 553  *****************************************************************************/
 554 void E_(GtkDisplayDate)( GtkAdjustment *p_adj, gpointer userdata )
 555 {
 556     intf_thread_t *p_intf;
 557
 558     p_intf = (intf_thread_t*) userdata;
 559     if (p_intf == NULL)
 560         return;
 561
 562     if( p_intf->p_sys->p_input )
 563     {
 564         char psz_time[ MSTRTIME_MAX_SIZE ];
 565         int64_t i_seconds;
 566
 567         i_seconds = var_GetTime( p_intf->p_sys->p_input, "time" ) / I64C(1000000 );
 568         secstotimestr( psz_time, i_seconds );
 569
 570         gtk_label_set_text( GTK_LABEL( p_intf->p_sys->p_slider_label ),
 571                             psz_time );
 572      }
 573 }
 574
 575 /*****************************************************************************
 576  * GtkModeManage: actualize the aspect of the interface whenever the input
 577  *                changes.
 578  *****************************************************************************
 579  * The lock has to be taken before you call the function.
 580  *****************************************************************************/
 581 gint E_(GtkModeManage)( intf_thread_t * p_intf )
 582 {
 583     GtkWidget *     p_slider = NULL;
 584     vlc_bool_t      b_control;
 585
 586     if ( p_intf->p_sys->p_window == NULL )
 587         msg_Err( p_intf, "Main widget not found" );
 588
 589     p_slider = lookup_widget( p_intf->p_sys->p_window, "timeSlider");
 590     if (p_slider == NULL)
 591         msg_Err( p_intf, "Slider widget not found" );
 592
 593     /* controls unavailable */
 594     b_control = 0;
 595
 596     /* show the box related to current input mode */
 597     if( p_intf->p_sys->p_input )
 598     {
 599         /* initialize and show slider for seekable streams */
 600         {
 601             gtk_widget_show( GTK_WIDGET( p_slider ) );
 602         }
 603
 604         /* control buttons for free pace streams */
 605         b_control = p_intf->p_sys->p_input->b_can_pace_control;
 606
 607         msg_Dbg( p_intf, "stream has changed, refreshing interface" );
 608     }
 609
 610     /* set control items */
 611     gtk_widget_set_sensitive( lookup_widget( p_intf->p_sys->p_window, "tbRewind"), b_control );
 612     gtk_widget_set_sensitive( lookup_widget( p_intf->p_sys->p_window, "tbPause"), b_control );
 613     gtk_widget_set_sensitive( lookup_widget( p_intf->p_sys->p_window, "tbForward"), b_control );
 614     return TRUE;
 615 }