1 /*****************************************************************************
2 * input_manager.cpp : Manage an input and interact with its GUI elements
3 ****************************************************************************
4 * Copyright (C) 2006 the VideoLAN team
7 * Authors: Clément Stenac <zorglub@videolan.org>
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.
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.
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 *****************************************************************************/
26 #include "input_manager.hpp"
27 #include "dialogs_provider.hpp"
30 static int ChangeVideo( vlc_object_t *p_this, const char *var, vlc_value_t o,
31 vlc_value_t n, void *param );
32 static int ChangeAudio( vlc_object_t *p_this, const char *var, vlc_value_t o,
33 vlc_value_t n, void *param );
35 /**********************************************************************
36 * InputManager implementation
37 **********************************************************************/
39 InputManager::InputManager( QObject *parent, intf_thread_t *_p_intf) :
40 QObject( parent ), p_intf( _p_intf )
42 i_old_playing_status = END_S;
44 /* Subscribe to updates */
45 connect( THEDP->fixed_timer, SIGNAL( timeout() ), this, SLOT( update() ) );
48 InputManager::~InputManager()
52 void InputManager::setInput( input_thread_t *_p_input )
55 emit positionUpdated( 0.0,0,0 );
56 b_had_audio = b_had_video = b_has_audio = b_has_video = false;
59 var_AddCallback( p_input, "audio-es", ChangeAudio, this );
60 var_AddCallback( p_input, "video-es", ChangeVideo, this );
64 void InputManager::delInput()
68 var_DelCallback( p_input, "audio-es", ChangeAudio, this );
69 var_DelCallback( p_input, "video-es", ChangeVideo, this );
73 void InputManager::update()
75 /// \todo Emit the signals only if it changed
76 if( !p_input ) return;
78 if( p_input->b_dead || p_input->b_die )
80 emit positionUpdated( 0.0, 0, 0 );
81 emit navigationChanged( 0 );
82 emit statusChanged( 0 ); // 0 = STOPPED, 1 = PLAY, 2 = PAUSE
85 if( !b_had_audio && b_has_audio )
87 if( !b_had_video && b_has_video )
91 mtime_t i_length, i_time;
93 i_length = var_GetTime( p_input, "length" ) / 1000000;
94 i_time = var_GetTime( p_input, "time") / 1000000;
95 f_pos = var_GetFloat( p_input, "position" );
96 emit positionUpdated( f_pos, i_time, i_length );
98 /* Update disc status */
100 var_Change( p_input, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
104 var_Change( p_input, "chapter", VLC_VAR_CHOICESCOUNT, &val, NULL );
106 emit navigationChanged( 1 ); // 1 = chapter, 2 = title, 0 = NO
108 emit navigationChanged( 2 );
112 emit navigationChanged( 0 );
117 if( p_input->input.p_item->p_meta &&
118 p_input->input.p_item->p_meta->psz_nowplaying &&
119 *p_input->input.p_item->p_meta->psz_nowplaying )
121 text.sprintf( "%s - %s",
122 p_input->input.p_item->p_meta->psz_nowplaying,
123 p_input->input.p_item->psz_name );
127 text.sprintf( "%s", p_input->input.p_item->psz_name );
129 emit nameChanged( text );
131 /* Update playing status */
132 var_Get( p_input, "state", &val );
133 val.i_int = val.i_int == PAUSE_S ? PAUSE_S : PLAYING_S;
134 if( i_old_playing_status != val.i_int )
136 i_old_playing_status = val.i_int;
137 emit statusChanged( val.i_int == PAUSE_S ? PAUSE_S : PLAYING_S );
141 void InputManager::sliderUpdate( float new_pos )
143 if( p_input && !p_input->b_die && !p_input->b_dead )
144 var_SetFloat( p_input, "position", new_pos );
147 void InputManager::togglePlayPause()
150 var_Get( p_input, "state", &state );
151 if( state.i_int != PAUSE_S )
153 /* A stream is being played, pause it */
154 state.i_int = PAUSE_S;
158 /* Stream is paused, resume it */
159 state.i_int = PLAYING_S;
161 var_Set( p_input, "state", state );
162 emit statusChanged( state.i_int );
165 /**********************************************************************
166 * MainInputManager implementation. Wrap an input manager and
167 * take care of updating the main playlist input
168 **********************************************************************/
169 MainInputManager * MainInputManager::instance = NULL;
171 MainInputManager::MainInputManager( intf_thread_t *_p_intf ) : QObject(NULL),
175 im = new InputManager( this, p_intf );
176 /* Get timer updates */
177 connect( DialogsProvider::getInstance(p_intf)->fixed_timer,
178 SIGNAL(timeout() ), this, SLOT( updateInput() ) );
179 /* Warn our embedded IM about input changes */
180 connect( this, SIGNAL( inputChanged( input_thread_t * ) ),
181 im, SLOT( setInput( input_thread_t * ) ) );
184 MainInputManager::~MainInputManager()
186 if( p_input ) vlc_object_release( p_input );
189 void MainInputManager::updateInput()
191 vlc_mutex_lock( &p_intf->change_lock );
192 if( p_input && p_input->b_dead )
194 vlc_object_release( p_input );
197 emit inputChanged( NULL );
202 playlist_t *p_playlist = (playlist_t *) vlc_object_find( p_intf,
203 VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
204 assert( p_playlist );
206 p_input = p_playlist->p_input;
209 vlc_object_yield( p_input );
210 emit inputChanged( p_input );
213 vlc_object_release( p_playlist );
215 vlc_mutex_unlock( &p_intf->change_lock );
218 void MainInputManager::togglePlayPause()
220 if( p_input == NULL )
222 playlist_Play( THEPL );
225 getIM()->togglePlayPause();
229 static int ChangeAudio( vlc_object_t *p_this, const char *var, vlc_value_t o,
230 vlc_value_t n, void *param )
232 InputManager *im = (InputManager*)param;
233 im->b_has_audio = true;
235 static int ChangeVideo( vlc_object_t *p_this, const char *var, vlc_value_t o,
236 vlc_value_t n, void *param )
238 InputManager *im = (InputManager*)param;
239 im->b_has_video = true;