]> git.sesse.net Git - vlc/blobdiff - modules/gui/qt4/input_manager.cpp
Qt4 - Fix the double free. Close #1397.
[vlc] / modules / gui / qt4 / input_manager.cpp
index 2ac73afdf1422c89d82d217017530cfced84faaa..4827a925ee34d3da907de7e8ec5b59e36910d9df 100644 (file)
@@ -1,7 +1,7 @@
 /*****************************************************************************
  * input_manager.cpp : Manage an input and interact with its GUI elements
  ****************************************************************************
- * Copyright (C) 2006 the VideoLAN team
+ * Copyright (C) 2006-2007 the VideoLAN team
  * $Id$
  *
  * Authors: ClĂ©ment Stenac <zorglub@videolan.org>
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  *****************************************************************************/
 
-#include <assert.h>
-
+#include "qt4.hpp"
 #include "input_manager.hpp"
 #include "dialogs_provider.hpp"
-#include "qt4.hpp"
+
+static int ChangeVideo( vlc_object_t *p_this, const char *var, vlc_value_t o,
+                        vlc_value_t n, void *param );
+static int ChangeAudio( vlc_object_t *p_this, const char *var, vlc_value_t o,
+                        vlc_value_t n, void *param );
+static int ItemChanged( vlc_object_t *, const char *,
+                        vlc_value_t, vlc_value_t, void * );
+static int InterfaceChanged( vlc_object_t *, const char *,
+                            vlc_value_t, vlc_value_t, void * );
+static int ItemStateChanged( vlc_object_t *, const char *,
+                        vlc_value_t, vlc_value_t, void * );
+static int ItemRateChanged( vlc_object_t *, const char *,
+                        vlc_value_t, vlc_value_t, void * );
+static int ItemTitleChanged( vlc_object_t *, const char *,
+                        vlc_value_t, vlc_value_t, void * );
+static int VolumeChanged( vlc_object_t *, const char *,
+                        vlc_value_t, vlc_value_t, void * );
 
 /**********************************************************************
  * InputManager implementation
 InputManager::InputManager( QObject *parent, intf_thread_t *_p_intf) :
                            QObject( parent ), p_intf( _p_intf )
 {
+    i_old_playing_status = END_S;
+    old_name = "";
     p_input = NULL;
-    /* Subscribe to updates */
-    connect( DialogsProvider::getInstance( p_intf )->fixed_timer,
-             SIGNAL( timeout() ), this, SLOT( update() ) );
+    i_rate = 0;
+    var_AddCallback( THEPL, "playlist-current", ItemChanged, this );
+    var_AddCallback( THEPL, "intf-change", ItemChanged, this );
 }
 
 InputManager::~InputManager()
 {
+    delInput();
+    var_DelCallback( THEPL, "playlist-current", ItemChanged, this );
+    var_DelCallback( THEPL, "intf-change", ItemChanged, this );
 }
 
 void InputManager::setInput( input_thread_t *_p_input )
 {
+    delInput();
     p_input = _p_input;
-    emit positionUpdated( 0.0,0,0 );
+    b_had_audio = b_had_video = b_has_audio = b_has_video = false;
+    if( p_input )
+    {
+        vlc_object_yield( p_input );
+        vlc_value_t val;
+        var_Change( p_input, "video-es", VLC_VAR_CHOICESCOUNT, &val, NULL );
+        b_has_video = val.i_int > 0;
+        var_Change( p_input, "audio-es", VLC_VAR_CHOICESCOUNT, &val, NULL );
+        b_has_audio = val.i_int > 0;
+        emit statusChanged( PLAYING_S );
+        addCallbacks();
+    }
+}
+
+void InputManager::delInput()
+{
+    if( p_input )
+    {
+        delCallbacks();
+        vlc_object_release( p_input );
+        p_input = NULL;
+    }
+    i_old_playing_status = END_S;
+    old_name=qfu("");
+    artUrl = qfu("");
+    emit positionUpdated( 0.0, 0 ,0 );
+    emit statusChanged( END_S );
+    emit nameChanged( "" );
+    emit artChanged( "" );
+}
+
+void InputManager::delCallbacks( void )
+{
+    var_DelCallback( p_input, "audio-es", ChangeAudio, this );
+    var_DelCallback( p_input, "video-es", ChangeVideo, this );
+    var_DelCallback( THEPL, "state", ItemStateChanged, this );
+    var_DelCallback( p_input, "rate", ItemRateChanged, this );
+    var_DelCallback( p_input, "title", ItemTitleChanged, this );
+    var_DelCallback( p_input, "intf-change", InterfaceChanged, this );
+    var_DelCallback( THEPL, "item-change", ItemChanged, this );
+}
+
+void InputManager::addCallbacks( void )
+{
+    var_AddCallback( p_input, "audio-es", ChangeAudio, this );
+    var_AddCallback( p_input, "video-es", ChangeVideo, this );
+    /* src/playlist/control.c */
+    var_AddCallback( THEPL, "state", ItemStateChanged, this );
+    /* src/input/input.c:1765 */
+    var_AddCallback( p_input, "rate", ItemRateChanged, this );
+    /* src/input/input.c:2003 */
+    var_AddCallback( p_input, "title", ItemTitleChanged, this );
+    /* src/input/input.c:734 for timers update*/
+    var_AddCallback( p_input, "intf-change", InterfaceChanged, this );
+    /* src/input/input.c:2076*/
+    var_AddCallback( THEPL, "item-change", ItemChanged, this );
+}
+
+static int InterfaceChanged( vlc_object_t *p_this, const char *psz_var,
+                            vlc_value_t oldval, vlc_value_t newval, void *param )
+{
+    static int counter = 0;
+    InputManager *im = (InputManager*)param;
+
+    counter = counter++ % 4;
+    if(!counter)
+        return VLC_SUCCESS;
+    IMEvent *event = new IMEvent( PositionUpdate_Type, 0 );
+    QApplication::postEvent( im, static_cast<QEvent*>(event) );
+    return VLC_SUCCESS;
+}
+
+static int ItemStateChanged( vlc_object_t *p_this, const char *psz_var,
+                            vlc_value_t oldval, vlc_value_t newval, void *param )
+{
+    InputManager *im = (InputManager*)param;
+
+    IMEvent *event = new IMEvent( ItemStateChanged_Type, 0 );
+    QApplication::postEvent( im, static_cast<QEvent*>(event) );
+    return VLC_SUCCESS;
+}
+
+static int ItemRateChanged( vlc_object_t *p_this, const char *psz_var,
+                            vlc_value_t oldval, vlc_value_t newval, void *param )
+{
+    InputManager *im = (InputManager*)param;
+
+    IMEvent *event = new IMEvent( ItemRateChanged_Type, 0 );
+    QApplication::postEvent( im, static_cast<QEvent*>(event) );
+    return VLC_SUCCESS;
+}
+
+static int ItemTitleChanged( vlc_object_t *p_this, const char *psz_var,
+                            vlc_value_t oldval, vlc_value_t newval, void *param )
+{
+    InputManager *im = (InputManager*)param;
+
+    IMEvent *event = new IMEvent( ItemTitleChanged_Type, 0 );
+    QApplication::postEvent( im, static_cast<QEvent*>(event) );
+    return VLC_SUCCESS;
+}
+
+static int InputChanged( vlc_object_t *p_this, const char *psz_var,
+                        vlc_value_t oldval, vlc_value_t newval, void *param )
+{
+    MainInputManager *im = (MainInputManager*)param;
+
+    IMEvent *event = new IMEvent( ItemChanged_Type, newval.i_int );
+    QApplication::postEvent( im, static_cast<QEvent*>(event) );
+    return VLC_SUCCESS;
+}
+
+static int VolumeChanged( vlc_object_t *p_this, const char *psz_var,
+                        vlc_value_t oldval, vlc_value_t newval, void *param )
+{
+    MainInputManager *im = (MainInputManager*)param;
+
+    IMEvent *event = new IMEvent( VolumeChanged_Type, newval.i_int );
+    QApplication::postEvent( im, static_cast<QEvent*>(event) );
+    return VLC_SUCCESS;
 }
 
-void InputManager::update()
+static int ItemChanged( vlc_object_t *p_this, const char *psz_var,
+                        vlc_value_t oldval, vlc_value_t newval, void *param )
 {
-    /// \todo Emit the signals only if it changed
-    if( !p_input || p_input->b_die ) return;
+    InputManager *im = (InputManager*)param;
 
-    if( p_input->b_dead )
+    IMEvent *event = new IMEvent( ItemChanged_Type, newval.i_int );
+    QApplication::postEvent( im, static_cast<QEvent*>(event) );
+    return VLC_SUCCESS;
+}
+
+void InputManager::customEvent( QEvent *event )
+{
+    int type = event->type();
+    if ( type != PositionUpdate_Type &&  type != ItemChanged_Type &&
+         type != ItemRateChanged_Type && type != ItemTitleChanged_Type &&
+         type != ItemStateChanged_Type )
+        return;
+
+    if(!p_input || p_input->b_dead || p_input->b_die )
     {
-        emit positionUpdated( 0.0, 0, 0 );
-        emit navigationChanged( 0 );
-        emit statusChanged( 0 ); // 0 = STOPPED, 1 = PAUSE, 2 = PLAY
+         delInput();
+         return;
     }
 
-    /* Update position */
-    mtime_t i_length, i_time;
-    float f_pos;
-    i_length = var_GetTime( p_input, "length" ) / 1000000;
-    i_time = var_GetTime( p_input, "time") / 1000000;
-    f_pos = var_GetFloat( p_input, "position" );
-    emit positionUpdated( f_pos, i_time, i_length );
+    IMEvent *ime = static_cast<IMEvent *>(event);
 
-    /* Update disc status */
-    vlc_value_t val;
-    var_Change( p_input, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
-    if( val.i_int > 0 )
+    if ( type == PositionUpdate_Type )
     {
-        vlc_value_t val;
-        var_Change( p_input, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
-    if( val.i_int > 0 )
-        emit navigationChanged( 1 ); // 1 = chapter, 2 = title, 3 = NO
-    else
-        emit navigationChanged( 2 );
+        UpdatePosition();
+    }
+    else if ( type == ItemChanged_Type )
+    {
+        UpdateMeta();
+    }
+    else if ( type == ItemRateChanged_Type )
+    {
+       UpdatePosition();
+    }
+    else if ( type == ItemTitleChanged_Type )
+    {
+       UpdateTitle();
+    }
+    else if (type == ItemStateChanged_Type )
+    {
+       UpdateStatus();
+    }
+}
+
+void InputManager::UpdatePosition( void )
+{
+     /* Update position */
+     int i_length, i_time; /* Int is enough, since we store seconds */
+     float f_pos;
+     i_length = var_GetTime(  p_input , "length" ) / 1000000;
+     i_time = var_GetTime(  p_input , "time") / 1000000;
+     f_pos = var_GetFloat(  p_input , "position" );
+     emit positionUpdated( f_pos, i_time, i_length );
+}
+
+void InputManager::UpdateTitle( void )
+{
+     /* Update navigation status */
+     vlc_value_t val; val.i_int = 0;
+     var_Change( p_input, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
+     if( val.i_int > 0 )
+     {
+         val.i_int = 0;
+         var_Change( p_input, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
+         emit navigationChanged( (val.i_int > 0) ? 1 : 2 );
+     }
+     else
+     {
+         emit navigationChanged( 0 );
+     }
+}
+
+void InputManager::UpdateStatus( void )
+{
+     /* Update playing status */
+     vlc_value_t val; val.i_int = 0;
+     var_Get( p_input, "state", &val );
+     if( i_old_playing_status != val.i_int )
+     {
+         i_old_playing_status = val.i_int;
+         emit statusChanged( val.i_int );
+     }
+}
+
+void InputManager::UpdateRate( void )
+{
+     /* Update Rate */
+     int i_new_rate = var_GetInteger( p_input, "rate");
+     if( i_new_rate != i_rate )
+     {
+         i_rate = i_new_rate;
+         /* Update rate */
+         emit rateChanged( i_rate );
+     }
+}
+
+void InputManager::UpdateMeta( void )
+{
+     /* Update text */
+     QString text;
+     char *psz_name = input_item_GetTitle( input_GetItem( p_input ) );
+     char *psz_nowplaying =
+         input_item_GetNowPlaying( input_GetItem( p_input ) );
+     char *psz_artist = input_item_GetArtist( input_GetItem( p_input ) );
+     if( EMPTY_STR( psz_name ) )
+     {
+         free( psz_name );
+         psz_name = input_item_GetName( input_GetItem( p_input ) );
+     }
+     if( !EMPTY_STR( psz_nowplaying ) )
+     {
+         text.sprintf( "%s - %s", psz_nowplaying, psz_name );
+     }
+     else if( !EMPTY_STR( psz_artist ) )
+     {
+         text.sprintf( "%s - %s", psz_artist, psz_name );
+     }
+     else
+     {
+         text.sprintf( "%s", psz_name );
+     }
+     free( psz_name );
+     free( psz_nowplaying );
+     free( psz_artist );
+     if( old_name != text )
+     {
+         emit nameChanged( text );
+         old_name=text;
+     }
+
+     QString url;
+     char *psz_art = input_item_GetArtURL( input_GetItem( p_input ) );
+     url.sprintf("%s", psz_art );
+     free( psz_art );
+     if( artUrl != url )
+     {
+         artUrl = url.replace( "file://",QString("" ) );
+         emit artChanged( artUrl );
+     }
+#ifdef ZVBI_COMPILED
+     /* Update teletext status*/
+     emit teletextEnabled( true );/* FIXME */
+#endif
+
+}
+
+void InputManager::sliderUpdate( float new_pos )
+{
+    if( hasInput() ) var_SetFloat( p_input, "position", new_pos );
+}
+
+void InputManager::togglePlayPause()
+{
+    vlc_value_t state;
+    var_Get( p_input, "state", &state );
+    state.i_int = ( ( state.i_int != PLAYING_S ) ? PLAYING_S : PAUSE_S );
+    msg_Dbg( p_input, "state : %d", state.i_int );
+    /*{
+        /* A stream is being played, pause it */
+       /* state.i_int = PAUSE_S;
     }
     else
     {
-        emit navigationChanged( 0 );
+        /* Stream is paused, resume it */
+        /*state.i_int = PLAYING_S;
+    }*/
+    var_Set( p_input, "state", state );
+    emit statusChanged( state.i_int );
+}
+
+void InputManager::sectionPrev()
+{
+    if( hasInput() )
+    {
+        int i_type = var_Type( p_input, "next-chapter" );
+        vlc_value_t val; val.b_bool = VLC_TRUE;
+        var_Set( p_input, (i_type & VLC_VAR_TYPE) != 0 ?
+                            "prev-chapter":"prev-title", val );
     }
+}
 
-    /* Update text */
-    QString text;
-    if( p_input->input.p_item->p_meta &&
-        p_input->input.p_item->p_meta->psz_nowplaying &&
-        *p_input->input.p_item->p_meta->psz_nowplaying )
+void InputManager::sectionNext()
+{
+    if( hasInput() )
     {
-        text.sprintf( "%s - %s",
-                  p_input->input.p_item->p_meta->psz_nowplaying,
-                  p_input->input.p_item->psz_name );
+        int i_type = var_Type( p_input, "next-chapter" );
+        vlc_value_t val; val.b_bool = VLC_TRUE;
+        var_Set( p_input, (i_type & VLC_VAR_TYPE) != 0 ?
+                            "next-chapter":"next-title", val );
     }
-    else
+}
+
+void InputManager::sectionMenu()
+{
+    if( hasInput() )
+        var_SetInteger( p_input, "title 0", 2 );
+}
+
+#ifdef ZVBI_COMPILED
+void InputManager::telexGotoPage( int page )
+{
+    if( hasInput() )
     {
-        text.sprintf( "%s", p_input->input.p_item->psz_name );
+        vlc_object_t *p_vbi;
+        p_vbi = (vlc_object_t *) vlc_object_find_name( p_input,
+                    "zvbi", FIND_ANYWHERE );
+        if( p_vbi )
+        {
+            var_SetInteger( p_vbi, "vbi-page", page );
+            vlc_object_release( p_vbi );
+        }
     }
-    emit nameChanged( text );
+}
+
+void InputManager::telexToggle( bool b_enabled )
+{
+    int i_page = 0;
 
+    if( b_enabled )
+        i_page = 100;
+    telexGotoPage( i_page );
 }
 
-void InputManager::sliderUpdate( float new_pos )
+void InputManager::telexSetTransparency( bool b_transp )
 {
-   if( p_input && !p_input->b_die && !p_input->b_dead )
-        var_SetFloat( p_input, "position", new_pos );
+    if( hasInput() )
+    {
+        vlc_object_t *p_vbi;
+        p_vbi = (vlc_object_t *) vlc_object_find_name( p_input,
+                    "zvbi", FIND_ANYWHERE );
+        if( p_vbi )
+        {
+            var_SetBool( p_input->p_libvlc, "vbi-opaque", b_transp );
+            vlc_object_release( p_vbi );
+        }
+    }
+}
+#endif
+
+void InputManager::slower()
+{
+    if( hasInput() )
+        var_SetVoid( p_input, "rate-slower" );
+}
+
+void InputManager::faster()
+{
+    if( hasInput() )
+        var_SetVoid( p_input, "rate-faster" );
+}
+
+void InputManager::normalRate()
+{
+    if( hasInput() )
+        var_SetInteger( p_input, "rate", INPUT_RATE_DEFAULT );
+}
+
+void InputManager::setRate( int new_rate )
+{
+    if( hasInput() )
+        var_SetInteger( p_input, "rate", new_rate );
 }
 
 /**********************************************************************
@@ -122,38 +468,118 @@ MainInputManager::MainInputManager( intf_thread_t *_p_intf ) : QObject(NULL),
 {
     p_input = NULL;
     im = new InputManager( this, p_intf );
-    /* Get timer updates */
-    connect( DialogsProvider::getInstance(p_intf)->fixed_timer,
-             SIGNAL(timeout() ), this, SLOT( updateInput() ) );
+    var_AddCallback( THEPL, "playlist-current", InputChanged, this );
+    var_AddCallback( THEPL, "activity", InputChanged, this );
+    var_AddCallback( p_intf->p_libvlc, "volume-change", VolumeChanged, this );
     /* Warn our embedded IM about input changes */
-    connect( this, SIGNAL( inputChanged( input_thread_t * ) ),
-             im, SLOT( setInput( input_thread_t * ) ) );
+    CONNECT( this, inputChanged( input_thread_t * ),
+             im,   setInput( input_thread_t * ) );
 }
 
-void MainInputManager::updateInput()
+MainInputManager::~MainInputManager()
 {
-    vlc_mutex_lock( &p_intf->change_lock );
-    if( p_input && p_input->b_dead )
+    if( p_input )
     {
-        vlc_object_release( p_input );
-        p_input = NULL;
-        emit inputChanged( NULL );
+       vlc_object_release( p_input );
+       emit inputChanged( NULL );
+    }
+    var_DelCallback( p_intf->p_libvlc, "volume-change", VolumeChanged, this );
+    var_DelCallback( THEPL, "playlist-current", InputChanged, this );
+    var_DelCallback( THEPL, "activity", InputChanged, this );
+}
+
+void MainInputManager::customEvent( QEvent *event )
+{
+    int type = event->type();
+    if ( type != ItemChanged_Type && type != VolumeChanged_Type )
+        return;
+
+    if( type == VolumeChanged_Type )
+    {
+        emit volumeChanged();
+        return;
     }
 
-    if( !p_input )
+    if( VLC_OBJECT_INTF == p_intf->i_object_type )
     {
+        vlc_mutex_lock( &p_intf->change_lock );
+        if( p_input && ( p_input->b_dead || p_input->b_die ) )
+        {
+            var_DelCallback( p_input, "state", InputChanged, this );
+            vlc_object_release( p_input );
+            p_input = NULL;
+            emit inputChanged( NULL );
+        }
+
+        if( !p_input )
+        {
+            QPL_LOCK;
+            p_input = THEPL->p_input;
+            if( p_input && !( p_input->b_die || p_input->b_dead) )
+            {
+                vlc_object_yield( p_input );
+                var_AddCallback( p_input, "state", InputChanged, this );
+                emit inputChanged( p_input );
+            }
+            else
+                p_input = NULL;
+            QPL_UNLOCK;
+        }
+        vlc_mutex_unlock( &p_intf->change_lock );
+    }
+    else {
+        /* we are working as a dialogs provider */
         playlist_t *p_playlist = (playlist_t *) vlc_object_find( p_intf,
-                                        VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
-        assert( p_playlist );
-        PL_LOCK;
-        p_input = p_playlist->p_input;
-        if( p_input )
+                                       VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
+        if( p_playlist )
         {
+            p_input = p_playlist->p_input;
             vlc_object_yield( p_input );
             emit inputChanged( p_input );
         }
-        PL_UNLOCK;
-        vlc_object_release( p_playlist );
     }
-    vlc_mutex_unlock( &p_intf->change_lock );
 }
+
+void MainInputManager::stop()
+{
+   playlist_Stop( THEPL );
+}
+
+void MainInputManager::next()
+{
+   playlist_Next( THEPL );
+}
+
+void MainInputManager::prev()
+{
+   playlist_Prev( THEPL );
+}
+
+void MainInputManager::togglePlayPause()
+{
+    if( p_input == NULL )
+    {
+        playlist_Play( THEPL );
+        return;
+    }
+    getIM()->togglePlayPause();
+}
+
+
+
+static int ChangeAudio( vlc_object_t *p_this, const char *var, vlc_value_t o,
+                        vlc_value_t n, void *param )
+{
+    InputManager *im = (InputManager*)param;
+    im->b_has_audio = true;
+    return VLC_SUCCESS;
+}
+
+static int ChangeVideo( vlc_object_t *p_this, const char *var, vlc_value_t o,
+                        vlc_value_t n, void *param )
+{
+    InputManager *im = (InputManager*)param;
+    im->b_has_video = true;
+    return VLC_SUCCESS;
+}
+