modules/gui/hildon/maemo.c

   1 /*****************************************************************************
   2 * maemo.c : Maemo plugin for VLC
   3 *****************************************************************************
   4 * Copyright (C) 2008 the VideoLAN team
   5 * $Id$
   6 *
   7 * Authors: Antoine Lejeune <phytos@videolan.org>
   8 *
   9 * This program is free software; you can redistribute it and/or modify
  10 * it under the terms of the GNU General Public License as published by
  11 * the Free Software Foundation; either version 2 of the License, or
  12 * (at your option) any later version.
  13 *
  14 * This program is distributed in the hope that it will be useful,
  15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 * GNU General Public License for more details.
  18 *
  19 * You should have received a copy of the GNU General Public License
  20 * along with this program; if not, write to the Free Software
  21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22 *****************************************************************************/
  23
  24 #ifdef HAVE_CONFIG_H
  25 # include "config.h"
  26 #endif
  27
  28 #include <assert.h>
  29
  30 #include <vlc_common.h>
  31 #include <vlc_plugin.h>
  32 #include <vlc_interface.h>
  33 #include <vlc_vout_window.h>
  34
  35 #include <hildon/hildon-program.h>
  36 #include <hildon/hildon-banner.h>
  37 #include <gtk/gtk.h>
  38 #include <gdk/gdkx.h>
  39 #include <stdio.h>
  40 #include <inttypes.h>
  41
  42 #include "maemo.h"
  43 #include "maemo_callbacks.h"
  44 #include "maemo_input.h"
  45 #include "maemo_interface.h"
  46
  47 /*****************************************************************************
  48  * Local prototypes.
  49  *****************************************************************************/
  50 static int      Open               ( vlc_object_t * );
  51 static void     Close              ( vlc_object_t * );
  52 static void     Run                ( intf_thread_t * );
  53 static gboolean should_die         ( gpointer );
  54 static int      OpenWindow         ( vlc_object_t * );
  55 static void     CloseWindow        ( vlc_object_t * );
  56 static int      ControlWindow      ( vout_window_t *, int, va_list );
  57 static uint32_t request_video      ( intf_thread_t *, vout_thread_t * );
  58 static void     release_video      ( intf_thread_t * );
  59 static gboolean video_widget_ready ( gpointer data );
  60
  61 /*****************************************************************************
  62 * Module descriptor
  63 *****************************************************************************/
  64 vlc_module_begin();
  65     set_shortname( "Maemo" );
  66     set_description( N_("Maemo hildon interface") );
  67     set_category( CAT_INTERFACE );
  68     set_subcategory( SUBCAT_INTERFACE_MAIN );
  69     set_capability( "interface", 70 );
  70     set_callbacks( Open, Close );
  71     add_shortcut( "maemo" );
  72
  73     add_submodule();
  74         set_capability( "vout window xid", 50 );
  75         set_callbacks( OpenWindow, CloseWindow );
  76 vlc_module_end();
  77
  78 static struct
  79 {
  80     vlc_mutex_t    lock;
  81     vlc_cond_t     wait;
  82     intf_thread_t *intf;
  83     bool           enabled;
  84 } wnd_req = { VLC_STATIC_MUTEX, PTHREAD_COND_INITIALIZER, NULL, false };
  85
  86 /*****************************************************************************
  87  * Module callbacks
  88  *****************************************************************************/
  89 static int Open( vlc_object_t *p_this )
  90 {
  91     intf_thread_t *p_intf = (intf_thread_t *)p_this;
  92
  93     /* Allocate instance and initialize some members */
  94     p_intf->p_sys = malloc( sizeof( intf_sys_t ) );
  95     if( p_intf->p_sys == NULL )
  96         return VLC_ENOMEM;
  97
  98     p_intf->pf_run = Run;
  99
 100     p_intf->p_sys->p_playlist = pl_Hold( p_intf );
 101     p_intf->p_sys->p_input = NULL;
 102     p_intf->p_sys->p_vout = NULL;
 103
 104     p_intf->p_sys->p_main_window = NULL;
 105     p_intf->p_sys->p_video_window = NULL;
 106
 107     wnd_req.enabled = true;
 108     /* ^no need to lock, interfacesare started before video outputs */
 109     vlc_spin_init( &p_intf->p_sys->event_lock );
 110
 111     return VLC_SUCCESS;
 112 }
 113
 114 static void Close( vlc_object_t *p_this )
 115 {
 116     intf_thread_t *p_intf = (intf_thread_t *)p_this;
 117
 118     vlc_object_release( p_intf->p_sys->p_playlist );
 119
 120     vlc_spin_destroy( &p_intf->p_sys->event_lock );
 121
 122     /* Destroy structure */
 123     free( p_intf->p_sys );
 124 }
 125
 126 /*****************************************************************************
 127 * Initialize and launch the interface
 128 *****************************************************************************/
 129 static void Run( intf_thread_t *p_intf )
 130 {
 131     char  *p_args[] = { (char *)"vlc", NULL };
 132     char **pp_args  = p_args;
 133     int    i_args   = 1;
 134
 135     HildonProgram *program;
 136     HildonWindow *window;
 137     GtkWidget *main_vbox;
 138
 139     GtkWidget *tabs;
 140     GtkWidget *video;
 141     GtkWidget *bottom_hbox;
 142     GtkWidget *play_button;
 143     GtkWidget *prev_button;
 144     GtkWidget *next_button;
 145     GtkWidget *stop_button;
 146     GtkWidget *seekbar;
 147
 148     gtk_init( &i_args, &pp_args );
 149
 150     program = HILDON_PROGRAM( hildon_program_get_instance() );
 151     g_set_application_name( "VLC Media Player" );
 152
 153     window = HILDON_WINDOW( hildon_window_new() );
 154     hildon_program_add_window( program, window );
 155     gtk_object_set_data( GTK_OBJECT( window ),
 156                          "p_intf", p_intf );
 157     p_intf->p_sys->p_main_window = window;
 158
 159     // A little theming
 160     char *psz_rc_file = NULL;
 161     if( asprintf( &psz_rc_file, "%s/maemo/vlc_intf.rc",
 162                   config_GetDataDir() ) != -1 )
 163     {
 164         gtk_rc_parse( psz_rc_file );
 165         free( psz_rc_file );
 166     }
 167
 168     // We create the main vertical box
 169     main_vbox = gtk_vbox_new( FALSE, 0 );
 170     gtk_container_add( GTK_CONTAINER( window ), main_vbox );
 171
 172     tabs = gtk_notebook_new();
 173     p_intf->p_sys->p_tabs = tabs;
 174     gtk_notebook_set_tab_pos( GTK_NOTEBOOK( tabs ), GTK_POS_LEFT );
 175     gtk_notebook_set_show_border( GTK_NOTEBOOK( tabs ), FALSE );
 176     gtk_box_pack_start( GTK_BOX( main_vbox ), tabs, TRUE, TRUE, 0 );
 177
 178     // We put first the embedded video
 179     video = gtk_event_box_new();
 180     gtk_notebook_append_page( GTK_NOTEBOOK( tabs ),
 181                 video,
 182                 gtk_image_new_from_stock( "vlc",
 183                                           GTK_ICON_SIZE_DIALOG ) );
 184     gtk_notebook_set_tab_label_packing( GTK_NOTEBOOK( tabs ),
 185                                         video,
 186                                         FALSE, FALSE, 0 );
 187     create_playlist( p_intf );
 188
 189     // We put the horizontal box which contains all the buttons
 190     bottom_hbox = gtk_hbox_new( FALSE, 0 );
 191
 192     // We create the buttons
 193     play_button = gtk_button_new();
 194     gtk_button_set_image( GTK_BUTTON( play_button ),
 195                    gtk_image_new_from_stock( "vlc-play", GTK_ICON_SIZE_BUTTON ) );
 196     gtk_widget_set_size_request( play_button, 60, 60);
 197     p_intf->p_sys->p_play_button = play_button;
 198     stop_button = gtk_button_new();
 199     gtk_button_set_image( GTK_BUTTON( stop_button ),
 200                           gtk_image_new_from_stock( "vlc-stop", GTK_ICON_SIZE_BUTTON ) );
 201     prev_button = gtk_button_new();
 202     gtk_button_set_image( GTK_BUTTON( prev_button ),
 203                       gtk_image_new_from_stock( "vlc-previous", GTK_ICON_SIZE_BUTTON ) );
 204     next_button = gtk_button_new();
 205     gtk_button_set_image( GTK_BUTTON( next_button ),
 206                       gtk_image_new_from_stock( "vlc-next", GTK_ICON_SIZE_BUTTON ) );
 207     seekbar = hildon_seekbar_new();
 208     p_intf->p_sys->p_seekbar = HILDON_SEEKBAR( seekbar );
 209
 210     // We add them to the hbox
 211     gtk_box_pack_start( GTK_BOX( bottom_hbox ), play_button, FALSE, FALSE, 5 );
 212     gtk_box_pack_start( GTK_BOX( bottom_hbox ), stop_button, FALSE, FALSE, 0 );
 213     gtk_box_pack_start( GTK_BOX( bottom_hbox ), prev_button, FALSE, FALSE, 0 );
 214     gtk_box_pack_start( GTK_BOX( bottom_hbox ), next_button, FALSE, FALSE, 0 );
 215     gtk_box_pack_start( GTK_BOX( bottom_hbox ), seekbar    , TRUE , TRUE , 5 );
 216     // We add the hbox to the main vbox
 217     gtk_box_pack_start( GTK_BOX( main_vbox ), bottom_hbox, FALSE, FALSE, 0 );
 218
 219     g_signal_connect( window, "delete_event",
 220                       G_CALLBACK( delete_event_cb ), NULL );
 221     g_signal_connect( play_button, "clicked", G_CALLBACK( play_cb ), NULL );
 222     g_signal_connect( stop_button, "clicked", G_CALLBACK( stop_cb ), NULL );
 223     g_signal_connect( prev_button, "clicked", G_CALLBACK( prev_cb ), NULL );
 224     g_signal_connect( next_button, "clicked", G_CALLBACK( next_cb ), NULL );
 225     g_signal_connect( seekbar, "change-value",
 226                       G_CALLBACK( seekbar_changed_cb ), NULL );
 227
 228     gtk_widget_show_all( GTK_WIDGET( window ) );
 229
 230     create_menu( p_intf );
 231
 232     // Set callback with the vlc core
 233     g_timeout_add( INTF_IDLE_SLEEP / 1000, process_events, p_intf );
 234     g_timeout_add( 150 /* miliseconds */, should_die, p_intf );
 235     var_AddCallback( p_intf->p_sys->p_playlist, "item-change",
 236                      item_changed_cb, p_intf );
 237     var_AddCallback( p_intf->p_sys->p_playlist, "item-current",
 238                      playlist_current_cb, p_intf );
 239     var_AddCallback( p_intf->p_sys->p_playlist, "activity",
 240                      activity_cb, p_intf );
 241
 242     // Look if the playlist is already started
 243     item_changed_pl( p_intf );
 244
 245     // The embedded video is only ready after gtk_main and windows are shown
 246     g_idle_add( video_widget_ready, video );
 247
 248     gtk_main();
 249
 250     delete_input( p_intf );
 251     var_DelCallback( p_intf->p_sys->p_playlist, "item-change",
 252                      item_changed_cb, p_intf );
 253     var_DelCallback( p_intf->p_sys->p_playlist, "item-current",
 254                      playlist_current_cb, p_intf );
 255     var_DelCallback( p_intf->p_sys->p_playlist, "activity",
 256                      activity_cb, p_intf );
 257
 258     /* FIXME: we need to wait for vout to clean up... */
 259     assert( !p_intf->p_sys->p_vout ); /* too late */
 260     gtk_object_destroy( GTK_OBJECT( window ) );
 261 }
 262
 263 static gboolean should_die( gpointer data )
 264 {
 265     intf_thread_t *p_intf = (intf_thread_t *)data;
 266     if( !vlc_object_alive( p_intf ) )
 267         gtk_main_quit();
 268     return TRUE;
 269 }
 270
 271 /**
 272 * Video output window provider
 273 */
 274 static int OpenWindow (vlc_object_t *obj)
 275 {
 276     vout_window_t *wnd = (vout_window_t *)obj;
 277     intf_thread_t *intf;
 278
 279     if (wnd->cfg->is_standalone || !wnd_req.enabled)
 280         return VLC_EGENERIC;
 281
 282     /* FIXME it should NOT be needed */
 283     vout_thread_t *vout = vlc_object_find (obj, VLC_OBJECT_VOUT, FIND_PARENT);
 284     if (!vout)
 285         return VLC_EGENERIC;
 286
 287     vlc_mutex_lock (&wnd_req.lock);
 288     while ((intf = wnd_req.intf) == NULL)
 289         vlc_cond_wait (&wnd_req.wait, &wnd_req.lock);
 290
 291     wnd->handle.xid = request_video( intf, vout );
 292     vlc_mutex_unlock (&wnd_req.lock);
 293
 294     vlc_object_release( vout );
 295
 296     if (!wnd->handle.xid)
 297         return VLC_EGENERIC;
 298
 299     msg_Dbg( intf, "Using handle %"PRIu32, wnd->handle.xid );
 300
 301     wnd->control = ControlWindow;
 302     wnd->sys = (vout_window_sys_t*)intf;
 303
 304     return VLC_SUCCESS;
 305 }
 306
 307 static int ControlWindow (vout_window_t *wnd, int query, va_list args)
 308 {
 309     intf_thread_t *intf = (intf_thread_t *)wnd->sys;
 310
 311     switch( query )
 312     {
 313     case VOUT_WINDOW_SET_SIZE:
 314     {
 315         int i_width  = (int)va_arg( args, int );
 316         int i_height = (int)va_arg( args, int );
 317
 318         int i_current_w, i_current_h;
 319         gdk_drawable_get_size( GDK_DRAWABLE( intf->p_sys->p_video_window->window ),
 320                                &i_current_w, &i_current_h );
 321         if( i_width != i_current_w || i_height != i_current_h )
 322             return VLC_EGENERIC;
 323         return VLC_SUCCESS;
 324     }
 325     default:
 326         return VLC_EGENERIC;
 327     }
 328 }
 329
 330 static void CloseWindow (vlc_object_t *obj)
 331 {
 332     vout_window_t *wnd = (vout_window_t *)obj;
 333     intf_thread_t *intf = (intf_thread_t *)wnd->sys;
 334
 335     vlc_mutex_lock( &wnd_req.lock );
 336     release_video( intf );
 337     vlc_mutex_unlock( &wnd_req.lock );
 338 }
 339
 340 static uint32_t request_video( intf_thread_t *p_intf, vout_thread_t *p_nvout )
 341 {
 342     if( p_intf->p_sys->p_vout )
 343     {
 344         msg_Dbg( p_intf, "Embedded video already in use" );
 345         return 0;
 346     }
 347
 348     p_intf->p_sys->p_vout = vlc_object_hold( p_nvout );
 349     return GDK_WINDOW_XID( p_intf->p_sys->p_video_window->window );
 350 }
 351
 352 static void release_video( intf_thread_t *p_intf )
 353 {
 354     msg_Dbg( p_intf, "Releasing embedded video" );
 355
 356     vlc_object_release( p_intf->p_sys->p_vout );
 357     p_intf->p_sys->p_vout = NULL;
 358 }
 359
 360 static gboolean video_widget_ready( gpointer data )
 361 {
 362     intf_thread_t *p_intf = NULL;
 363     GtkWidget *top_window = NULL;
 364     GtkWidget *video = (GtkWidget *)data;
 365
 366     top_window = gtk_widget_get_toplevel( GTK_WIDGET( video ) );
 367     p_intf = (intf_thread_t *)gtk_object_get_data( GTK_OBJECT( top_window ),
 368                                                    "p_intf" );
 369     p_intf->p_sys->p_video_window = video;
 370     gtk_widget_grab_focus( video );
 371
 372     vlc_mutex_lock( &wnd_req.lock );
 373     wnd_req.intf = p_intf;
 374     vlc_cond_signal( &wnd_req.wait );
 375     vlc_mutex_unlock( &wnd_req.lock );
 376
 377     // We rewind the input
 378     if( p_intf->p_sys->p_input )
 379     {
 380         input_Control( p_intf->p_sys->p_input, INPUT_SET_POSITION, 0.0 );
 381     }
 382
 383     // We want it to be executed only one time
 384     return FALSE;
 385 }