modules/gui/qt4/qt4.cpp

   1 /*****************************************************************************
   2  * qt4.cpp : QT4 interface
   3  ****************************************************************************
   4  * Copyright © 2006-2009 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *          Jean-Baptiste Kempf <jb@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 #ifdef HAVE_CONFIG_H
  26 # include "config.h"
  27 #endif
  28
  29 #include <QApplication>
  30 #include <QDate>
  31 #include <QMutex>
  32
  33 #include "qt4.hpp"
  34
  35 #include "input_manager.hpp"    /* THEMIM destruction */
  36 #include "dialogs_provider.hpp" /* THEDP creation */
  37 #include "main_interface.hpp"   /* MainInterface creation */
  38 #include "dialogs/help.hpp"     /* Launch Update */
  39 #include "recents.hpp"          /* Recents Item destruction */
  40 #include "util/qvlcapp.hpp"     /* QVLCApplication definition */
  41 #include "components/playlist/playlist_model.hpp" /* for ~PLModel() */
  42 #include <vlc_aout_intf.h>
  43
  44 #ifdef Q_WS_X11
  45  #include <vlc_xlib.h>
  46 #endif
  47
  48 #include "../../../share/icons/32x32/vlc.xpm"
  49 #include "../../../share/icons/32x32/vlc-xmas.xpm"
  50 #include <vlc_plugin.h>
  51 #include <vlc_vout_window.h>
  52
  53 #ifdef WIN32 /* For static builds */
  54  #include <QtPlugin>
  55  Q_IMPORT_PLUGIN(qjpeg)
  56  Q_IMPORT_PLUGIN(qtaccessiblewidgets)
  57 #endif
  58
  59 /*****************************************************************************
  60  * Local prototypes.
  61  *****************************************************************************/
  62 static int  OpenIntf     ( vlc_object_t * );
  63 static int  OpenDialogs  ( vlc_object_t * );
  64 static int  Open         ( vlc_object_t *, bool );
  65 static void Close        ( vlc_object_t * );
  66 static int  WindowOpen   ( vout_window_t *, const vout_window_cfg_t * );
  67 static void WindowClose  ( vout_window_t * );
  68 static void *Thread      ( void * );
  69 static void ShowDialog   ( intf_thread_t *, int, int, intf_dialog_args_t * );
  70
  71 /*****************************************************************************
  72  * Module descriptor
  73  *****************************************************************************/
  74 #define ADVANCED_PREFS_TEXT N_( "Show advanced preferences over simple ones" )
  75 #define ADVANCED_PREFS_LONGTEXT N_( "Show advanced preferences and not simple "\
  76                                     "preferences when opening the preferences "\
  77                                     "dialog." )
  78
  79 #define SYSTRAY_TEXT N_( "Systray icon" )
  80 #define SYSTRAY_LONGTEXT N_( "Show an icon in the systray " \
  81                              "allowing you to control VLC media player " \
  82                              "for basic actions." )
  83
  84 #define MINIMIZED_TEXT N_( "Start VLC with only a systray icon" )
  85 #define MINIMIZED_LONGTEXT N_( "VLC will start with just an icon in " \
  86                                "your taskbar" )
  87
  88 #define KEEPSIZE_TEXT N_( "Resize interface to the native video size" )
  89 #define KEEPSIZE_LONGTEXT N_( "You have two choices:\n" \
  90             " - The interface will resize to the native video size\n" \
  91             " - The video will fit to the interface size\n " \
  92             "By default, interface resize to the native video size." )
  93
  94 #define TITLE_TEXT N_( "Show playing item name in window title" )
  95 #define TITLE_LONGTEXT N_( "Show the name of the song or video in the " \
  96                            "controller window title." )
  97
  98 #define NOTIFICATION_TEXT N_( "Show notification popup on track change" )
  99 #define NOTIFICATION_LONGTEXT N_( \
 100     "Show a notification popup with the artist and track name when " \
 101     "the current playlist item changes, when VLC is minimized or hidden." )
 102
 103 #define ADVANCED_OPTIONS_TEXT N_( "Advanced options" )
 104 #define ADVANCED_OPTIONS_LONGTEXT N_( "Show all the advanced options " \
 105                                       "in the dialogs." )
 106
 107 #define OPACITY_TEXT N_( "Windows opacity between 0.1 and 1" )
 108 #define OPACITY_LONGTEXT N_( "Sets the windows opacity between 0.1 and 1 " \
 109                              "for main interface, playlist and extended panel."\
 110                              " This option only works with Windows and " \
 111                              "X11 with composite extensions." )
 112
 113 #define OPACITY_FS_TEXT N_( "Fullscreen controller opacity between 0.1 and 1" )
 114 #define OPACITY_FS_LONGTEXT N_( "Sets the fullscreen controller opacity between 0.1 and 1 " \
 115                              "for main interface, playlist and extended panel."\
 116                              " This option only works with Windows and " \
 117                              "X11 with composite extensions." )
 118
 119
 120 #define ERROR_TEXT N_( "Show unimportant error and warnings dialogs" )
 121
 122 #define UPDATER_TEXT N_( "Activate the updates availability notification" )
 123 #define UPDATER_LONGTEXT N_( "Activate the automatic notification of new " \
 124                             "versions of the software. It runs once every " \
 125                             "two weeks." )
 126 #define UPDATER_DAYS_TEXT N_("Number of days between two update checks")
 127
 128 #define SAVEVOL_TEXT N_( "Automatically save the volume on exit" )
 129
 130 #define PRIVACY_TEXT N_( "Ask for network policy at start" )
 131
 132 #define RECENTPLAY_TEXT N_( "Save the recently played items in the menu" )
 133
 134 #define RECENTPLAY_FILTER_TEXT N_( "List of words separated by | to filter" )
 135 #define RECENTPLAY_FILTER_LONGTEXT N_( "Regular expression used to filter " \
 136         "the recent items played in the player" )
 137
 138 #define SLIDERCOL_TEXT N_( "Define the colors of the volume slider " )
 139 #define SLIDERCOL_LONGTEXT N_( "Define the colors of the volume slider\n" \
 140                        "By specifying the 12 numbers separated by a ';'\n" \
 141             "Default is '255;255;255;20;226;20;255;176;15;235;30;20'\n" \
 142             "An alternative can be '30;30;50;40;40;100;50;50;160;150;150;255' ")
 143
 144 #define QT_MODE_TEXT N_( "Selection of the starting mode and look " )
 145 #define QT_MODE_LONGTEXT N_( "Start VLC with:\n" \
 146                              " - normal mode\n"  \
 147                              " - a zone always present to show information " \
 148                                   "as lyrics, album arts...\n" \
 149                              " - minimal mode with limited controls" )
 150
 151 #define QT_FULLSCREEN_TEXT N_( "Show a controller in fullscreen mode" )
 152 #define QT_NATIVEOPEN_TEXT N_( "Embed the file browser in open dialog" )
 153
 154 #define FULLSCREEN_NUMBER_TEXT N_( "Define which screen fullscreen goes" )
 155 #define FULLSCREEN_NUMBER_LONGTEXT N_( "Screennumber of fullscreen, instead of " \
 156                                        "same screen where interface is" )
 157
 158 #define QT_AUTOLOAD_EXTENSIONS_TEXT N_( "Load extensions on startup" )
 159 #define QT_AUTOLOAD_EXTENSIONS_LONGTEXT N_( "Automatically load the "\
 160                                             "extensions module on startup" )
 161
 162 #define QT_MINIMAL_MODE_TEXT N_("Start in minimal view (without menus)" )
 163
 164 #define QT_BGCONE_TEXT N_( "Display background cone or art" )
 165 #define QT_BGCONE_LONGTEXT N_( "Display background cone or current album art " \
 166                             "when not playing." \
 167                             "Can be disabled to prevent burning screen." )
 168 #define QT_BGCONE_EXPANDS_TEXT N_( "Expanding background cone or art." )
 169 #define QT_BGCONE_EXPANDS_LONGTEXT N_( "Background art fits window's size" )
 170
 171 #define QT_DISABLE_VOLUME_KEYS_TEXT N_( "Ignore keyboard volume buttons." )
 172 #define QT_DISABLE_VOLUME_KEYS_LONGTEXT N_(                                             \
 173     "With this option checked, the volume up, volume down and mute buttons on your "    \
 174     "keyboard will always change your system volume. With this option unchecked, the "  \
 175     "volume buttons will change VLC's volume when VLC is selected and change the "      \
 176     "system volume when VLC is not selected." )
 177
 178 #define QT_PAUSE_MINIMIZED_TEXT N_( "Pause the video playback when minimized" )
 179 #define QT_PAUSE_MINIMIZED_LONGTEXT N_( \
 180     "With this option enabled, the playback will be automatically paused when minimizing the window." )
 181
 182 #define ICONCHANGE_TEXT N_( "Allow automatic icon changes")
 183 #define ICONCHANGE_LONGTEXT N_( \
 184     "This option allows the interface to change its icon on various occasions.")
 185
 186 /**********************************************************************/
 187 vlc_module_begin ()
 188     set_shortname( "Qt" )
 189     set_description( N_("Qt interface") )
 190     set_category( CAT_INTERFACE )
 191     set_subcategory( SUBCAT_INTERFACE_MAIN )
 192     set_capability( "interface", 151 )
 193     set_callbacks( OpenIntf, Close )
 194
 195     add_shortcut("qt")
 196
 197     add_bool( "qt-minimal-view", false, QT_MINIMAL_MODE_TEXT,
 198               QT_MINIMAL_MODE_TEXT, false );
 199
 200     add_bool( "qt-system-tray",
 201 #ifdef HAVE_MAEMO
 202             false,
 203 #else
 204             true,
 205 #endif
 206             SYSTRAY_TEXT, SYSTRAY_LONGTEXT, false)
 207     add_bool( "qt-notification", true, NOTIFICATION_TEXT,
 208               NOTIFICATION_LONGTEXT, false )
 209     add_bool( "qt-start-minimized", false, MINIMIZED_TEXT,
 210               MINIMIZED_LONGTEXT, true)
 211     add_bool( "qt-pause-minimized", true, QT_PAUSE_MINIMIZED_TEXT,
 212               QT_PAUSE_MINIMIZED_LONGTEXT, false )
 213
 214     add_float_with_range( "qt-opacity", 1., 0.1, 1., OPACITY_TEXT,
 215                           OPACITY_LONGTEXT, false )
 216     add_float_with_range( "qt-fs-opacity", 0.8, 0.1, 1., OPACITY_FS_TEXT,
 217                           OPACITY_FS_LONGTEXT, false )
 218
 219     add_bool( "qt-video-autoresize", true, KEEPSIZE_TEXT,
 220               KEEPSIZE_LONGTEXT, false )
 221     add_bool( "qt-name-in-title", true, TITLE_TEXT,
 222               TITLE_LONGTEXT, false )
 223     add_bool( "qt-fs-controller", true, QT_FULLSCREEN_TEXT,
 224               QT_FULLSCREEN_TEXT, false )
 225
 226     add_bool( "qt-recentplay", true, RECENTPLAY_TEXT,
 227               RECENTPLAY_TEXT, false )
 228     add_string( "qt-recentplay-filter", "",
 229                 RECENTPLAY_FILTER_TEXT, RECENTPLAY_FILTER_LONGTEXT, false )
 230
 231 #ifdef UPDATE_CHECK
 232     add_bool( "qt-updates-notif", true, UPDATER_TEXT,
 233               UPDATER_LONGTEXT, false )
 234     add_integer( "qt-updates-days", 3, UPDATER_DAYS_TEXT,
 235                  UPDATER_DAYS_TEXT, false )
 236 #endif
 237
 238     add_bool( "qt-autosave-volume", false, SAVEVOL_TEXT,
 239               SAVEVOL_TEXT, true )
 240 #ifdef WIN32
 241     add_bool( "qt-disable-volume-keys"             /* name */,
 242               true                                 /* default value */,
 243               QT_DISABLE_VOLUME_KEYS_TEXT          /* text */,
 244               QT_DISABLE_VOLUME_KEYS_LONGTEXT      /* longtext */,
 245               false                                /* advanced mode only */)
 246 #endif
 247
 248     add_bool( "qt-embedded-open", false, QT_NATIVEOPEN_TEXT,
 249                QT_NATIVEOPEN_TEXT, false )
 250
 251
 252     add_bool( "qt-advanced-pref", false, ADVANCED_PREFS_TEXT,
 253               ADVANCED_PREFS_LONGTEXT, false )
 254     add_bool( "qt-error-dialogs", true, ERROR_TEXT,
 255               ERROR_TEXT, false )
 256
 257     add_string( "qt-slider-colours", "153;210;153;20;210;20;255;199;15;245;39;29",
 258                 SLIDERCOL_TEXT, SLIDERCOL_LONGTEXT, false )
 259
 260     add_bool( "qt-privacy-ask", true, PRIVACY_TEXT, PRIVACY_TEXT,
 261               false )
 262         change_private ()
 263
 264     add_integer( "qt-fullscreen-screennumber", -1, FULLSCREEN_NUMBER_TEXT,
 265                FULLSCREEN_NUMBER_LONGTEXT, false );
 266
 267     add_bool( "qt-autoload-extensions", true,
 268               QT_AUTOLOAD_EXTENSIONS_TEXT, QT_AUTOLOAD_EXTENSIONS_LONGTEXT,
 269               false )
 270
 271     add_bool( "qt-bgcone", true, QT_BGCONE_TEXT, QT_BGCONE_LONGTEXT, true )
 272     add_bool( "qt-bgcone-expands", false, QT_BGCONE_EXPANDS_TEXT,
 273               QT_BGCONE_EXPANDS_LONGTEXT, true )
 274
 275     add_bool( "qt-icon-change", true, ICONCHANGE_TEXT, ICONCHANGE_LONGTEXT, true )
 276
 277     add_obsolete_bool( "qt-blingbling" )      /* Suppressed since 1.0.0 */
 278     add_obsolete_integer( "qt-display-mode" ) /* Suppressed since 1.1.0 */
 279
 280     add_obsolete_bool( "qt-adv-options" )     /* Since 1.2.0 */
 281     add_obsolete_bool( "qt-volume-complete" ) /* Since 1.2.0 */
 282     add_obsolete_integer( "qt-startvolume" )  /* Since 1.2.0 */
 283
 284     cannot_unload_broken_library()
 285
 286     add_submodule ()
 287         set_description( "Dialogs provider" )
 288         set_capability( "dialogs provider", 51 )
 289
 290         set_callbacks( OpenDialogs, Close )
 291
 292 #if defined(Q_WS_X11) || defined(Q_WS_WIN) || defined(Q_WS_MAC)  || defined(Q_WS_PM)
 293     add_submodule ()
 294 #if defined(Q_WS_X11)
 295         set_capability( "vout window xid", 0 )
 296 #elif defined(Q_WS_WIN) || defined(Q_WS_PM)
 297         set_capability( "vout window hwnd", 0 )
 298 #elif defined(Q_WS_MAC)
 299         set_capability( "vout window nsobject", 0 )
 300 #endif
 301         set_callbacks( WindowOpen, WindowClose )
 302 #endif
 303
 304 vlc_module_end ()
 305
 306 /*****************************************/
 307
 308 /* Ugly, but the Qt4 interface assumes single instance anyway */
 309 static vlc_sem_t ready;
 310 static QMutex lock;
 311 static bool busy = false;
 312 static bool active = false;
 313
 314 /*****************************************************************************
 315  * Module callbacks
 316  *****************************************************************************/
 317
 318 #ifdef Q_WS_MAC
 319 /* Used to abort the app.exec() on OSX after libvlc_Quit is called */
 320 #include "../../../lib/libvlc_internal.h" /* libvlc_SetExitHandler */
 321 static void Abort( void *obj )
 322 {
 323     QVLCApp::triggerQuit();
 324 }
 325 #endif
 326
 327 static void RegisterIntf( vlc_object_t *p_this )
 328 {
 329     playlist_t *pl = pl_Get(p_this);
 330     var_Create (pl, "qt4-iface", VLC_VAR_ADDRESS);
 331     var_SetAddress (pl, "qt4-iface", p_this);
 332     var_Create (pl, "window", VLC_VAR_STRING);
 333     var_SetString (pl, "window", "qt4,any");
 334 }
 335
 336 /* Open Interface */
 337 static int Open( vlc_object_t *p_this, bool isDialogProvider )
 338 {
 339     intf_thread_t *p_intf = (intf_thread_t *)p_this;
 340
 341 #ifdef Q_WS_X11
 342     if( !vlc_xlib_init( p_this ) )
 343         return VLC_EGENERIC;
 344
 345     Display *p_display = XOpenDisplay( NULL );
 346     if( !p_display )
 347     {
 348         msg_Err( p_intf, "Could not connect to X server" );
 349         return VLC_EGENERIC;
 350     }
 351     XCloseDisplay( p_display );
 352 #endif
 353
 354     QMutexLocker locker (&lock);
 355     if (busy)
 356     {
 357         msg_Err (p_this, "cannot start Qt4 multiple times");
 358         return VLC_EGENERIC;
 359     }
 360
 361     /* Allocations of p_sys */
 362     intf_sys_t *p_sys = p_intf->p_sys = new intf_sys_t;
 363     p_intf->p_sys->b_isDialogProvider = isDialogProvider;
 364     p_sys->p_mi = NULL;
 365     p_sys->pl_model = NULL;
 366
 367     /* */
 368     vlc_sem_init (&ready, 0);
 369 #ifdef Q_WS_MAC
 370     /* Run mainloop on the main thread as Cocoa requires */
 371     libvlc_SetExitHandler( p_intf->p_libvlc, Abort, p_intf );
 372     Thread( (void *)p_intf );
 373 #else
 374     if( vlc_clone( &p_sys->thread, Thread, p_intf, VLC_THREAD_PRIORITY_LOW ) )
 375     {
 376         delete p_sys;
 377         return VLC_ENOMEM;
 378     }
 379 #endif
 380
 381     /* Wait for the interface to be ready. This prevents the main
 382      * LibVLC thread from starting video playback before we can create
 383      * an embedded video window. */
 384     vlc_sem_wait (&ready);
 385     vlc_sem_destroy (&ready);
 386     busy = active = true;
 387
 388 #ifndef Q_WS_MAC
 389     if( !isDialogProvider )
 390     {
 391         RegisterIntf( p_this );
 392     }
 393 #endif
 394
 395     return VLC_SUCCESS;
 396 }
 397
 398 /* Open qt4 interface */
 399 static int OpenIntf( vlc_object_t *p_this )
 400 {
 401     return Open( p_this, false );
 402 }
 403
 404 /* Open Dialog Provider */
 405 static int OpenDialogs( vlc_object_t *p_this )
 406 {
 407     return Open( p_this, true );
 408 }
 409
 410 static void Close( vlc_object_t *p_this )
 411 {
 412     intf_thread_t *p_intf = (intf_thread_t *)p_this;
 413     intf_sys_t *p_sys = p_intf->p_sys;
 414
 415     if( !p_sys->b_isDialogProvider )
 416     {
 417         var_Destroy (pl_Get(p_this), "window");
 418         var_Destroy (pl_Get(p_this), "qt4-iface");
 419     }
 420
 421     /* And quit */
 422     msg_Dbg( p_this, "requesting exit..." );
 423     QVLCApp::triggerQuit();
 424
 425     msg_Dbg( p_this, "waiting for UI thread..." );
 426 #ifndef Q_WS_MAC
 427     vlc_join (p_sys->thread, NULL);
 428 #endif
 429     delete p_sys;
 430
 431     QMutexLocker locker (&lock);
 432     assert (busy);
 433     busy = false;
 434 }
 435
 436 static void *Thread( void *obj )
 437 {
 438     intf_thread_t *p_intf = (intf_thread_t *)obj;
 439     MainInterface *p_mi;
 440     char dummy[] = "vlc"; /* for WM_CLASS */
 441     char *argv[2] = { dummy, NULL, };
 442     int argc = 1;
 443
 444     Q_INIT_RESOURCE( vlc );
 445
 446     /* Start the QApplication here */
 447     QVLCApp app( argc, argv );
 448
 449     p_intf->p_sys->p_app = &app;
 450
 451
 452     /* All the settings are in the .conf/.ini style */
 453     p_intf->p_sys->mainSettings = new QSettings(
 454 #ifdef WIN32
 455             QSettings::IniFormat,
 456 #else
 457             QSettings::NativeFormat,
 458 #endif
 459             QSettings::UserScope, "vlc", "vlc-qt-interface" );
 460
 461     /* Icon setting, Mac uses icon from .icns */
 462 #ifndef Q_WS_MAC
 463     if( QDate::currentDate().dayOfYear() >= QT_XMAS_JOKE_DAY && var_InheritBool( p_intf, "qt-icon-change" ) )
 464         app.setWindowIcon( QIcon(vlc_xmas_xpm) );
 465     else
 466         app.setWindowIcon( QIcon(vlc_xpm) );
 467 #endif
 468
 469     /* Initialize timers and the Dialog Provider */
 470     DialogsProvider::getInstance( p_intf );
 471
 472     /* Detect screensize for small screens like TV or Netbooks */
 473     p_intf->p_sys->i_screenHeight =
 474         app.QApplication::desktop()->availableGeometry().height();
 475
 476 #ifdef UPDATE_CHECK
 477     /* Checking for VLC updates */
 478     if( var_InheritBool( p_intf, "qt-updates-notif" ) &&
 479         !var_InheritBool( p_intf, "qt-privacy-ask" ) )
 480     {
 481         int interval = var_InheritInteger( p_intf, "qt-updates-days" );
 482         if( QDate::currentDate() >
 483              getSettings()->value( "updatedate" ).toDate().addDays( interval ) )
 484         {
 485             /* The constructor of the update Dialog will do the 1st request */
 486             UpdateDialog::getInstance( p_intf );
 487             getSettings()->setValue( "updatedate", QDate::currentDate() );
 488         }
 489     }
 490 #endif
 491
 492     /* Create the normal interface in non-DP mode */
 493     if( !p_intf->p_sys->b_isDialogProvider )
 494     {
 495         p_mi = new MainInterface( p_intf );
 496         p_intf->p_sys->p_mi = p_mi;
 497     }
 498     else
 499         p_mi = NULL;
 500
 501     /* Explain how to show a dialog :D */
 502     p_intf->pf_show_dialog = ShowDialog;
 503
 504     /* Tell the main LibVLC thread we are ready */
 505     vlc_sem_post (&ready);
 506
 507 #ifdef Q_WS_MAC
 508     /* We took over main thread, register and start here */
 509     if( !p_intf->p_sys->b_isDialogProvider )
 510     {
 511         RegisterIntf( (vlc_object_t *)p_intf );
 512         playlist_Play( THEPL );
 513     }
 514 #endif
 515
 516     /* Last settings */
 517     if( p_intf->p_sys->b_isDialogProvider )
 518         app.setQuitOnLastWindowClosed( false );
 519     else
 520         app.setQuitOnLastWindowClosed( true );
 521
 522     /* Retrieve last known path used in file browsing */
 523     p_intf->p_sys->filepath =
 524          getSettings()->value( "filedialog-path", QVLCUserDir( VLC_HOME_DIR ) ).toString();
 525
 526     /* Loads and tries to apply the preferred QStyle */
 527     QString s_style = getSettings()->value( "MainWindow/QtStyle", "" ).toString();
 528     if( s_style.compare("") != 0 )
 529         QApplication::setStyle( s_style );
 530
 531     /* Launch */
 532     app.exec();
 533
 534     msg_Dbg( p_intf, "QApp exec() finished" );
 535     if (p_mi != NULL)
 536     {
 537         QMutexLocker locker (&lock);
 538         active = false;
 539
 540         p_intf->p_sys->p_mi = NULL;
 541         /* Destroy first the main interface because it is connected to some
 542            slots in the MainInputManager */
 543         delete p_mi;
 544     }
 545
 546     /* Destroy all remaining windows,
 547        because some are connected to some slots
 548        in the MainInputManager
 549        Settings must be destroyed after that.
 550      */
 551     DialogsProvider::killInstance();
 552
 553     /* Delete the recentsMRL object before the configuration */
 554     RecentsMRL::killInstance();
 555
 556     /* Save the path or delete if recent play are disabled */
 557     if( var_InheritBool( p_intf, "qt-recentplay" ) )
 558         getSettings()->setValue( "filedialog-path", p_intf->p_sys->filepath );
 559     else
 560         getSettings()->remove( "filedialog-path" );
 561
 562     /* */
 563     delete p_intf->p_sys->pl_model;
 564
 565     /* Delete the configuration. Application has to be deleted after that. */
 566     delete p_intf->p_sys->mainSettings;
 567
 568     /* Destroy the MainInputManager */
 569     MainInputManager::killInstance();
 570
 571     /* Delete the application automatically */
 572     return NULL;
 573 }
 574
 575 /*****************************************************************************
 576  * Callback to show a dialog
 577  *****************************************************************************/
 578 static void ShowDialog( intf_thread_t *p_intf, int i_dialog_event, int i_arg,
 579                         intf_dialog_args_t *p_arg )
 580 {
 581     VLC_UNUSED( p_intf );
 582     DialogEvent *event = new DialogEvent( i_dialog_event, i_arg, p_arg );
 583     QApplication::postEvent( THEDP, event );
 584 }
 585
 586 /**
 587  * Video output window provider
 588  *
 589  * TODO move it out of here ?
 590  */
 591 static int WindowControl( vout_window_t *, int i_query, va_list );
 592
 593 static int WindowOpen( vout_window_t *p_wnd, const vout_window_cfg_t *cfg )
 594 {
 595     /* */
 596     if( cfg->is_standalone )
 597         return VLC_EGENERIC;
 598 #if defined (Q_WS_X11)
 599     if( var_InheritBool( p_wnd, "video-wallpaper" ) )
 600         return VLC_EGENERIC;
 601 #endif
 602
 603     intf_thread_t *p_intf =
 604         (intf_thread_t *)var_InheritAddress( p_wnd, "qt4-iface" );
 605     if( !p_intf )
 606     {   /* If another interface is used, this plugin cannot work */
 607         msg_Dbg( p_wnd, "Qt4 interface not found" );
 608         return VLC_EGENERIC;
 609     }
 610
 611     QMutexLocker locker (&lock);
 612     if (unlikely(!active))
 613         return VLC_EGENERIC;
 614
 615     MainInterface *p_mi = p_intf->p_sys->p_mi;
 616     msg_Dbg( p_wnd, "requesting video..." );
 617
 618     int i_x = cfg->x;
 619     int i_y = cfg->y;
 620     unsigned i_width = cfg->width;
 621     unsigned i_height = cfg->height;
 622
 623 #if defined (Q_WS_X11)
 624     p_wnd->handle.xid = p_mi->getVideo( &i_x, &i_y, &i_width, &i_height );
 625     if( !p_wnd->handle.xid )
 626         return VLC_EGENERIC;
 627     p_wnd->display.x11 = NULL;
 628
 629 #elif defined (Q_WS_WIN) || defined(Q_WS_PM)
 630     p_wnd->handle.hwnd = (void *)p_mi->getVideo( &i_x, &i_y, &i_width, &i_height );
 631     if( !p_wnd->handle.hwnd )
 632         return VLC_EGENERIC;
 633
 634 #elif defined (Q_WS_MAC)
 635     p_wnd->handle.nsobject = (void *)p_mi->getVideo( &i_x, &i_y, &i_width, &i_height );
 636     if( !p_wnd->handle.nsobject )
 637         return VLC_EGENERIC;
 638 #else
 639 # error FIXME
 640 #endif
 641
 642     p_wnd->control = WindowControl;
 643     p_wnd->sys = (vout_window_sys_t*)p_mi;
 644     return VLC_SUCCESS;
 645 }
 646
 647 static int WindowControl( vout_window_t *p_wnd, int i_query, va_list args )
 648 {
 649     MainInterface *p_mi = (MainInterface *)p_wnd->sys;
 650     QMutexLocker locker (&lock);
 651
 652     if (unlikely(!active))
 653     {
 654         msg_Warn (p_wnd, "video already released before control");
 655         return VLC_EGENERIC;
 656     }
 657     return p_mi->controlVideo( i_query, args );
 658 }
 659
 660 static void WindowClose( vout_window_t *p_wnd )
 661 {
 662     MainInterface *p_mi = (MainInterface *)p_wnd->sys;
 663     QMutexLocker locker (&lock);
 664
 665     /* Normally, the interface terminates after the video. In the contrary, the
 666      * Qt4 main loop is gone, so we cannot send any event to the user interface
 667      * widgets. Ideally, we would keep the Qt4 main loop running until after
 668      * the video window is released. But it is far simpler to just have the Qt4
 669      * thread destroy the window early, and to turn this function into a stub.
 670      *
 671      * That assumes the video output will behave sanely if it window is
 672      * destroyed asynchronously.
 673      * XCB and Xlib-XCB are fine with that. Plain Xlib wouldn't, */
 674     if (unlikely(!active))
 675     {
 676         msg_Warn (p_wnd, "video already released");
 677         return;
 678     }
 679     msg_Dbg (p_wnd, "releasing video...");
 680     p_mi->releaseVideo();
 681 }