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/*****************************************************************************
* input_manager.cpp : Manage an input and interact with its GUI elements
****************************************************************************
* Copyright (C) 2006-2008 the VideoLAN team
* $Id$
*
* Authors: Clément Stenac <zorglub@videolan.org>
* Ilkka Ollakka <ileoo@videolan.org>
* Jean-Baptiste <jb@videolan.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "qt4.hpp"
#include "input_manager.hpp"
#include "dialogs_provider.hpp"
static int ChangeSPU( vlc_object_t *p_this, const char *var, vlc_value_t o,
vlc_value_t n, void *param );
static int ChangeTeletext( 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 PLItemChanged( 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
**********************************************************************
* The Input Manager can be the main one around the playlist
* But can also be used for VLM dialog or similar
**********************************************************************/
InputManager::InputManager( QObject *parent, intf_thread_t *_p_intf) :
QObject( parent ), p_intf( _p_intf )
{
i_old_playing_status = END_S;
old_name = "";
artUrl = "";
p_input = NULL;
i_rate = 0;
i_input_id = 0;
b_transparentTelextext = false;
}
InputManager::~InputManager()
{
delInput();
}
/* Define the Input used.
Add the callbacks on input
p_input is yield once here */
void InputManager::setInput( input_thread_t *_p_input )
{
delInput();
p_input = _p_input;
if( p_input && !( p_input->b_dead || !vlc_object_alive (p_input) ) )
{
vlc_object_yield( p_input );
emit statusChanged( PLAYING_S );
UpdateMeta();
UpdateArt();
UpdateSPU();
UpdateTeletext();
UpdateNavigation();
addCallbacks();
i_input_id = input_GetItem( p_input )->i_id;
}
else
{
p_input = NULL;
i_input_id = 0;
emit rateChanged( INPUT_RATE_DEFAULT );
}
}
/* delete Input if it ever existed.
Delete the callbacls on input
p_input is released once here */
void InputManager::delInput()
{
if( p_input )
{
delCallbacks();
i_old_playing_status = END_S;
i_input_id = 0;
old_name = "";
artUrl = "";
emit positionUpdated( -1.0, 0 ,0 );
emit statusChanged( END_S );
emit nameChanged( "" );
emit artChanged( "" );
emit rateChanged( INPUT_RATE_DEFAULT );
vlc_object_release( p_input );
p_input = NULL;
UpdateSPU();
UpdateTeletext();
}
}
/* Add the callbacks on Input. Self explanatory */
void InputManager::addCallbacks()
{
/* We don't care about:
- chapter
- programs
- audio-delay
- spu-delay
- bookmark
- position, time, length, because they are included in intf-change
*/
/* src/input/input.c:1629 */
var_AddCallback( p_input, "state", ItemStateChanged, this );
/* src/input/es-out.c:552 */
var_AddCallback( p_input, "spu-es", ChangeSPU, this );
/* emit UpdateStatus so that main_interface updates controls
* if there is new videotracks (mpeg-ts)*/
var_AddCallback( p_input, "video-es", ItemStateChanged, this );
/* src/input/es-out.c: */
var_AddCallback( p_input, "teletext-es", ChangeTeletext, this );
/* src/input/input.c:1765 */
var_AddCallback( p_input, "rate-change", 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 );
}
/* Delete the callbacks on Input. Self explanatory */
void InputManager::delCallbacks()
{
var_DelCallback( p_input, "spu-es", ChangeSPU, this );
var_DelCallback( p_input, "video-es", ItemStateChanged, this );
var_DelCallback( p_input, "teletext-es", ChangeTeletext, this );
var_DelCallback( p_input, "state", ItemStateChanged, this );
var_DelCallback( p_input, "rate-change", ItemRateChanged, this );
var_DelCallback( p_input, "title", ItemTitleChanged, this );
var_DelCallback( p_input, "intf-change", InterfaceChanged, this );
}
/* Convert the event from the callbacks in actions */
void InputManager::customEvent( QEvent *event )
{
int type = event->type();
IMEvent *ple = static_cast<IMEvent *>(event);
if ( type != PositionUpdate_Type &&
type != ItemChanged_Type &&
type != ItemRateChanged_Type &&
type != ItemTitleChanged_Type &&
type != ItemSpuChanged_Type &&
type != ItemTeletextChanged_Type &&
type != ItemStateChanged_Type )
return;
if( type == ItemStateChanged_Type )
{
UpdateNavigation();
UpdateTeletext();
}
if( !hasInput() ) return;
if( ( type != PositionUpdate_Type &&
type != ItemRateChanged_Type &&
type != ItemSpuChanged_Type &&
type != ItemTeletextChanged_Type &&
type != ItemStateChanged_Type
)
&& ( i_input_id != ple->i_id ) )
return;
if( type != PositionUpdate_Type )
msg_Dbg( p_intf, "New Event: type %i", type );
/* Actions */
switch( type )
{
case PositionUpdate_Type:
UpdatePosition();
break;
case ItemChanged_Type:
UpdateMeta();
UpdateStatus();
UpdateArt();
break;
case ItemStateChanged_Type:
UpdateStatus();
UpdateNavigation();
UpdateMeta();
break;
case ItemTitleChanged_Type:
UpdateNavigation();
UpdateMeta();
break;
case ItemRateChanged_Type:
UpdateRate();
break;
case ItemSpuChanged_Type:
UpdateSPU();
break;
case ItemTeletextChanged_Type:
UpdateTeletext();
break;
}
}
void InputManager::UpdatePosition()
{
/* 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::UpdateNavigation()
{
/* Update navigation status */
vlc_value_t val; val.i_int = 0;
if( hasInput() )
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()
{
/* 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()
{
/* 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()
{
/* Update text, name and nowplaying */
QString text;
char *psz_name = input_item_GetTitle( input_GetItem( p_input ) );
if( EMPTY_STR( psz_name ) )
{
free( psz_name );
psz_name = input_item_GetName( input_GetItem( p_input ) );
}
char *psz_nowplaying =
input_item_GetNowPlaying( input_GetItem( p_input ) );
if( !EMPTY_STR( psz_nowplaying ) )
{
text.sprintf( "%s - %s", psz_nowplaying, psz_name );
}
else
{
char *psz_artist = input_item_GetArtist( input_GetItem( p_input ) );
if( !EMPTY_STR( psz_artist ) )
{
text.sprintf( "%s - %s", psz_artist, psz_name );
}
else
{
text.sprintf( "%s", psz_name );
}
free( psz_artist );
}
free( psz_name );
free( psz_nowplaying );
if( old_name != text )
{
emit nameChanged( text );
old_name=text;
}
}
bool InputManager::hasAudio()
{
if( hasInput() )
{
vlc_value_t val;
var_Change( p_input, "audio-es", VLC_VAR_CHOICESCOUNT, &val, NULL );
return val.i_int > 0;
}
return false;
}
bool InputManager::hasVideo()
{
if( hasInput() )
{
vlc_value_t val;
var_Change( p_input, "video-es", VLC_VAR_CHOICESCOUNT, &val, NULL );
return val.i_int > 0;
}
return false;
}
void InputManager::UpdateSPU()
{
UpdateTeletext();
}
void InputManager::UpdateTeletext()
{
if( hasInput() )
telexToggle( var_GetInteger( p_input, "teletext-es" ) >= 0 );
else
telexToggle( false );
}
void InputManager::UpdateArt()
{
/* Update Art meta */
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("" ) );
/* Taglib seems to define a attachment://, It won't work yet */
artUrl = url.replace( "attachment://",QString("" ) );
emit artChanged( artUrl );
msg_Dbg( p_intf, "Art: %s", qtu( artUrl ) );
}
}
/* User update of the slider */
void InputManager::sliderUpdate( float new_pos )
{
if( hasInput() )
var_SetFloat( p_input, "position", new_pos );
}
/* User togglePlayPause */
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;
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 = true;
var_Set( p_input, (i_type & VLC_VAR_TYPE) != 0 ?
"prev-chapter":"prev-title", val );
}
}
void InputManager::sectionNext()
{
if( hasInput() )
{
int i_type = var_Type( p_input, "next-chapter" );
vlc_value_t val; val.b_bool = true;
var_Set( p_input, (i_type & VLC_VAR_TYPE) != 0 ?
"next-chapter":"next-title", val );
}
}
void InputManager::sectionMenu()
{
if( hasInput() )
{
vlc_value_t val, text;
vlc_value_t root;
if( var_Change( p_input, "title 0", VLC_VAR_GETLIST, &val, &text ) < 0 )
return;
/* XXX is it "Root" or "Title" we want here ?" (set 0 by default) */
root.i_int = 0;
for( int i = 0; i < val.p_list->i_count; i++ )
{
if( !strcmp( text.p_list->p_values[i].psz_string, "Title" ) )
root.i_int = i;
}
var_Change( p_input, "title 0", VLC_VAR_FREELIST, &val, &text );
var_Set( p_input, "title 0", root );
}
}
void InputManager::telexGotoPage( int page )
{
if( hasInput() )
{
const int i_teletext_es = var_GetInteger( p_input, "teletext-es" );
const int i_spu_es = var_GetInteger( p_input, "spu-es" );
if( i_teletext_es >= 0 && i_teletext_es == i_spu_es )
{
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 setNewTelexPage( page );
}
void InputManager::telexToggle( bool b_enabled )
{
if( hasInput() )
{
const int i_teletext_es = var_GetInteger( p_input, "teletext-es" );
const int i_spu_es = var_GetInteger( p_input, "spu-es" );
b_enabled = (i_teletext_es >= 0);
emit teletextEnabled( b_enabled );
if( b_enabled && (i_teletext_es == i_spu_es) )
{
vlc_object_t *p_vbi;
int i_page = 100;
p_vbi = (vlc_object_t *) vlc_object_find_name( p_input,
"zvbi", FIND_ANYWHERE );
if( p_vbi )
{
i_page = var_GetInteger( p_vbi, "vbi-page" );
vlc_object_release( p_vbi );
i_page = b_enabled ? i_page : 0;
telexGotoPage( i_page );
}
}
}
else emit teletextEnabled( b_enabled );
}
void InputManager::telexToggleButtons()
{
if( hasInput() )
{
const int i_teletext_es = var_GetInteger( p_input, "teletext-es" );
if( i_teletext_es >= 0 )
{
const int i_spu_es = var_GetInteger( p_input, "spu-es" );
if( i_teletext_es == i_spu_es )
var_SetInteger( p_input, "spu-es", -1 );
else
var_SetInteger( p_input, "spu-es", i_teletext_es );
emit toggleTelexButtons();
}
}
}
void InputManager::telexSetTransparency()
{
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_vbi, "vbi-opaque", b_transparentTelextext );
b_transparentTelextext = !b_transparentTelextext;
vlc_object_release( p_vbi );
}
}
emit toggleTelexTransparency();
}
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 );
}
/**********************************************************************
* MainInputManager implementation. Wrap an input manager and
* take care of updating the main playlist input.
* Used in the main playlist Dialog
**********************************************************************/
MainInputManager * MainInputManager::instance = NULL;
MainInputManager::MainInputManager( intf_thread_t *_p_intf )
: QObject(NULL), p_intf( _p_intf )
{
p_input = NULL;
im = new InputManager( this, p_intf );
// var_AddCallback( THEPL, "item-change", PLItemChanged, this );
var_AddCallback( THEPL, "item-change", ItemChanged, im );
var_AddCallback( THEPL, "playlist-current", PLItemChanged, this );
var_AddCallback( THEPL, "activity", PLItemChanged, this );
var_AddCallback( p_intf->p_libvlc, "volume-change", VolumeChanged, this );
// No necessary, I think TODO REMOVE ME at the end
//var_AddCallback( THEPL, "intf-change", ItemChanged, im );
/* Warn our embedded IM about input changes */
CONNECT( this, inputChanged( input_thread_t * ),
im, setInput( input_thread_t * ) );
/* emit check if playlist has allready started playing */
vlc_value_t val;
var_Change( THEPL, "playlist-current", VLC_VAR_CHOICESCOUNT, &val, NULL );
IMEvent *event = new IMEvent( ItemChanged_Type, val.i_int);
QApplication::postEvent( this, static_cast<QEvent*>(event) );
}
MainInputManager::~MainInputManager()
{
if( p_input )
{
var_DelCallback( p_input, "state", PLItemChanged, this );
vlc_object_release( p_input );
emit inputChanged( NULL );
}
var_DelCallback( p_intf->p_libvlc, "volume-change", VolumeChanged, this );
var_DelCallback( THEPL, "activity", PLItemChanged, this );
var_DelCallback( THEPL, "item-change", ItemChanged, im );
// var_DelCallback( THEPL, "item-change", PLItemChanged, this );
var_DelCallback( THEPL, "playlist-current", PLItemChanged, this );
}
void MainInputManager::customEvent( QEvent *event )
{
int type = event->type();
if ( type != ItemChanged_Type && type != VolumeChanged_Type )
return;
// msg_Dbg( p_intf, "New MainIM Event of type: %i", type );
if( type == VolumeChanged_Type )
{
emit volumeChanged();
return;
}
/* Should be PLItemChanged Event */
if( VLC_OBJECT_INTF == p_intf->i_object_type ) /* FIXME: don't use object type */
{
vlc_mutex_lock( &p_intf->change_lock );
if( p_input && ( p_input->b_dead || !vlc_object_alive (p_input) ) )
{
var_DelCallback( p_input, "state", PLItemChanged, this );
vlc_object_release( p_input );
emit inputChanged( NULL );
p_input = NULL;
vlc_mutex_unlock( &p_intf->change_lock );
return;
}
if( !p_input )
{
QPL_LOCK;
p_input = THEPL->p_input;
if( p_input && !( !vlc_object_alive (p_input) || p_input->b_dead) )
{
vlc_object_yield( p_input );
var_AddCallback( p_input, "state", PLItemChanged, 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 = pl_Yield( p_intf );
p_input = playlist_CurrentInput( p_playlist );
if( p_input )
{
emit inputChanged( p_input );
vlc_object_release( p_input );
}
pl_Release( p_intf );
}
}
/* Playlist Control functions */
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();
}
bool MainInputManager::teletextState()
{
im = getIM();
if( im->hasInput() )
{
const int i_teletext_es = var_GetInteger( getInput(), "teletext-es" );
const int i_spu_es = var_GetInteger( getInput(), "spu-es" );
return i_teletext_es >= 0 && i_teletext_es == i_spu_es;
}
return false;
}
/* Static callbacks */
/* IM */
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 ItemChanged( 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( ItemChanged_Type, newval.i_int );
QApplication::postEvent( im, static_cast<QEvent*>(event) );
return VLC_SUCCESS;
}
static int ChangeSPU( vlc_object_t *p_this, const char *var, vlc_value_t o,
vlc_value_t n, void *param )
{
InputManager *im = (InputManager*)param;
IMEvent *event = new IMEvent( ItemSpuChanged_Type, 0 );
QApplication::postEvent( im, static_cast<QEvent*>(event) );
return VLC_SUCCESS;
}
static int ChangeTeletext( vlc_object_t *p_this, const char *var, vlc_value_t o,
vlc_value_t n, void *param )
{
InputManager *im = (InputManager*)param;
IMEvent *event = new IMEvent( ItemTeletextChanged_Type, 0 );
QApplication::postEvent( im, static_cast<QEvent*>(event) );
return VLC_SUCCESS;
}
/* MIM */
static int PLItemChanged( vlc_object_t *p_this, const char *psz_var,
vlc_value_t oldval, vlc_value_t newval, void *param )
{
MainInputManager *mim = (MainInputManager*)param;
IMEvent *event = new IMEvent( ItemChanged_Type, newval.i_int );
QApplication::postEvent( mim, 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 *mim = (MainInputManager*)param;
IMEvent *event = new IMEvent( VolumeChanged_Type, newval.i_int );
QApplication::postEvent( mim, static_cast<QEvent*>(event) );
return VLC_SUCCESS;
}