void VarText::set( const UString &rText )
{
// Avoid an infinite loop
if( rText == m_text )
{
return;
}
m_text = rText;
if( m_substVars )
{
// Stop observing other variables
delObservers();
VlcProc *pVlcProc = VlcProc::instance( getIntf() );
VarManager *pVarManager = VarManager::instance( getIntf() );
// Observe needed variables
if( m_text.find( "$H" ) != UString::npos )
{
pVarManager->getHelpText().addObserver( this );
}
if( m_text.find( "$T" ) != UString::npos ||
m_text.find( "$t" ) != UString::npos ||
m_text.find( "$L" ) != UString::npos ||
m_text.find( "$l" ) != UString::npos ||
m_text.find( "$D" ) != UString::npos ||
m_text.find( "$d" ) != UString::npos )
{
pVlcProc->getTimeVar().addObserver( this );
}
if( m_text.find( "$V" ) != UString::npos )
{
pVlcProc->getVolumeVar().addObserver( this );
}
if( m_text.find( "$N" ) != UString::npos )
{
pVlcProc->getStreamNameVar().addObserver( this );
}
if( m_text.find( "$F" ) != UString::npos )
{
pVlcProc->getStreamURIVar().addObserver( this );
}
if( m_text.find( "$B" ) != UString::npos )
{
pVlcProc->getStreamBitRateVar().addObserver( this );
}
if( m_text.find( "$S" ) != UString::npos )
{
pVlcProc->getStreamSampleRateVar().addObserver( this );
}
if( m_text.find( "$R" ) != UString::npos )
{
pVlcProc->getSpeedVar().addObserver( this );
}
}
notify();
}
int VlcProc::onGenericCallback2( vlc_object_t *pObj, const char *pVariable,
vlc_value_t oldVal, vlc_value_t newVal,
void *pParam )
{
(void)oldVal;
VlcProc *pThis = (VlcProc*)pParam;
AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
/**
* For intf-event, commands are labeled based on the value of newVal.
*
* For some values (e.g position), only keep the latest command
* when there are multiple pending commands (remove=true).
*
* for others, don't discard commands (remove=false)
**/
if( strcmp( pVariable, "intf-event" ) == 0 )
{
stringstream label;
bool b_remove;
switch( newVal.i_int )
{
case INPUT_EVENT_STATE:
case INPUT_EVENT_POSITION:
case INPUT_EVENT_ES:
case INPUT_EVENT_CHAPTER:
case INPUT_EVENT_RECORD:
b_remove = true;
break;
case INPUT_EVENT_VOUT:
case INPUT_EVENT_AOUT:
case INPUT_EVENT_DEAD:
b_remove = false;
break;
default:
return VLC_SUCCESS;
}
label << pVariable << "_" << newVal.i_int;
CmdGeneric *pCmd = new CmdCallback( pThis->getIntf(), pObj, newVal,
&VlcProc::on_intf_event_changed,
label.str() );
if( pCmd )
pQueue->push( CmdGenericPtr( pCmd ), b_remove );
return VLC_SUCCESS;
}
msg_Err( pThis->getIntf(), "no callback entry for %s", pVariable );
return VLC_EGENERIC;
}
int VlcProc::onEqPreampChange( vlc_object_t *pObj, const char *pVariable,
vlc_value_t oldVal, vlc_value_t newVal,
void *pParam )
{
VlcProc *pThis = (VlcProc*)pParam;
EqualizerPreamp *pVarPreamp = (EqualizerPreamp*)(pThis->m_cVarEqPreamp.get());
// Post a set preamp command
CmdSetEqPreamp *pCmd = new CmdSetEqPreamp( pThis->getIntf(), *pVarPreamp,
(newVal.f_float + 20.0) / 40.0 );
AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
pQueue->push( CmdGenericPtr( pCmd ) );
return VLC_SUCCESS;
}
int VlcProc::onEqBandsChange( vlc_object_t *pObj, const char *pVariable,
vlc_value_t oldVal, vlc_value_t newVal,
void *pParam )
{
VlcProc *pThis = (VlcProc*)pParam;
// Post a set equalizer bands command
CmdSetEqBands *pCmd = new CmdSetEqBands( pThis->getIntf(),
pThis->m_varEqBands,
newVal.psz_string );
AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
pQueue->push( CmdGenericPtr( pCmd ) );
return VLC_SUCCESS;
}
int VlcProc::onItemDelete( vlc_object_t *pObj, const char *pVariable,
vlc_value_t oldVal, vlc_value_t newVal,
void *pParam )
{
VlcProc *pThis = (VlcProc*)pParam;
int i_id = newVal.i_int;
CmdPlaytreeDelete *pCmdTree =
new CmdPlaytreeDelete( pThis->getIntf(), i_id);
// Push the command in the asynchronous command queue
AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
pQueue->push( CmdGenericPtr( pCmdTree ), false );
return VLC_SUCCESS;
}
int VlcProc::onItemAppend( vlc_object_t *pObj, const char *pVariable,
vlc_value_t oldVal, vlc_value_t newVal,
void *pParam )
{
VlcProc *pThis = (VlcProc*)pParam;
playlist_add_t *p_add = static_cast<playlist_add_t*>(newVal.p_address);
CmdPlaytreeAppend *pCmdTree =
new CmdPlaytreeAppend( pThis->getIntf(), p_add );
// Push the command in the asynchronous command queue
AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
pQueue->push( CmdGenericPtr( pCmdTree ), false );
return VLC_SUCCESS;
}
int VlcProc::onItemChange( vlc_object_t *pObj, const char *pVariable,
vlc_value_t oldval, vlc_value_t newval,
void *pParam )
{
VlcProc *pThis = (VlcProc*)pParam;
input_item_t *p_item = static_cast<input_item_t*>(newval.p_address);
// Create a playtree notify command
CmdPlaytreeUpdate *pCmdTree = new CmdPlaytreeUpdate( pThis->getIntf(),
p_item );
// Push the command in the asynchronous command queue
AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
pQueue->push( CmdGenericPtr( pCmdTree ), true );
return VLC_SUCCESS;
}
int VlcProc::onGenericCallback( vlc_object_t *pObj, const char *pVariable,
vlc_value_t oldVal, vlc_value_t newVal,
void *pParam )
{
(void)oldVal;
VlcProc *pThis = (VlcProc*)pParam;
AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
#define ADD_CALLBACK_ENTRY( var, func, remove ) \
{ \
if( strcmp( pVariable, var ) == 0 ) \
{ \
string label = var; \
CmdGeneric *pCmd = new CmdCallback( pThis->getIntf(), pObj, newVal, \
&VlcProc::func, label ); \
if( pCmd ) \
pQueue->push( CmdGenericPtr( pCmd ), remove ); \
return VLC_SUCCESS; \
} \
}
ADD_CALLBACK_ENTRY( "item-current", on_item_current_changed, false )
ADD_CALLBACK_ENTRY( "volume", on_volume_changed, true )
ADD_CALLBACK_ENTRY( "bit-rate", on_bit_rate_changed, false )
ADD_CALLBACK_ENTRY( "sample-rate", on_sample_rate_changed, false )
ADD_CALLBACK_ENTRY( "can-record", on_can_record_changed, false )
ADD_CALLBACK_ENTRY( "random", on_random_changed, false )
ADD_CALLBACK_ENTRY( "loop", on_loop_changed, false )
ADD_CALLBACK_ENTRY( "repeat", on_repeat_changed, false )
ADD_CALLBACK_ENTRY( "audio-filter", on_audio_filter_changed, false )
ADD_CALLBACK_ENTRY( "intf-toggle-fscontrol", on_intf_show_changed, false )
ADD_CALLBACK_ENTRY( "mouse-moved", on_mouse_moved_changed, false )
#undef ADD_CALLBACK_ENTRY
msg_Err( pThis->getIntf(), "no callback entry for %s", pVariable );
return VLC_EGENERIC;
}
int VlcProc::onGenericCallback( vlc_object_t *pObj, const char *pVariable,
vlc_value_t oldVal, vlc_value_t newVal,
void *pParam )
{
VlcProc *pThis = (VlcProc*)pParam;
AsyncQueue *pQueue = AsyncQueue::instance( pThis->getIntf() );
CmdGeneric *pCmd = NULL;
#define ADD_CALLBACK_ENTRY( var, label ) \
{ \
if( strcmp( pVariable, var ) == 0 ) \
pCmd = new Cmd_##label( pThis->getIntf(), pObj, newVal ); \
}
ADD_CALLBACK_ENTRY( "item-current", item_current_changed )
ADD_CALLBACK_ENTRY( "volume-change", volume_changed )
ADD_CALLBACK_ENTRY( "intf-event", intf_event_changed )
ADD_CALLBACK_ENTRY( "bit-rate", bit_rate_changed )
ADD_CALLBACK_ENTRY( "sample-rate", sample_rate_changed )
ADD_CALLBACK_ENTRY( "can-record", can_record_changed )
ADD_CALLBACK_ENTRY( "random", random_changed )
ADD_CALLBACK_ENTRY( "loop", loop_changed )
ADD_CALLBACK_ENTRY( "repeat", repeat_changed )
ADD_CALLBACK_ENTRY( "audio-filter", audio_filter_changed )
ADD_CALLBACK_ENTRY( "intf-show", intf_show_changed )
#undef ADD_CALLBACK_ENTRY
if( pCmd )
pQueue->push( CmdGenericPtr( pCmd ), false );
else
msg_Err( pObj, "no Callback entry provided for %s", pVariable );
return VLC_SUCCESS;
}
void VarText::delObservers()
{
// Stop observing other variables
VlcProc *pVlcProc = getIntf()->p_sys->p_vlcProc;
VarManager *pVarManager = getIntf()->p_sys->p_varManager;
if( pVlcProc )
{
pVlcProc->getTimeVar().delObserver( this );
pVlcProc->getVolumeVar().delObserver( this );
pVlcProc->getSpeedVar().delObserver( this );
pVlcProc->getStreamNameVar().delObserver( this );
pVlcProc->getStreamURIVar().delObserver( this );
pVlcProc->getStreamBitRateVar().delObserver( this );
pVlcProc->getStreamSampleRateVar().delObserver( this );
}
if( pVarManager )
pVarManager->getHelpText().delObserver( this );
}
const UString VarText::get() const
{
if( !m_substVars )
{
// Do not substitute "$X" variables
return m_text;
}
uint32_t pos;
VlcProc *pVlcProc = VlcProc::instance( getIntf() );
// Fill a temporary UString object, and replace the escape characters
// ($H for help, $T for current time, $L for time left, $D for duration,
// $V for volume)
UString temp( m_text );
// $H is processed first, in case the help string contains other variables
// to replace. And it is replaced only once, in case one of these other
// variables is $H...
if( (pos = temp.find( "$H" )) != UString::npos )
{
VarManager *pVarManager = VarManager::instance( getIntf() );
temp.replace( pos, 2, pVarManager->getHelpText().get() );
}
while( (pos = temp.find( "$T" )) != UString::npos )
{
temp.replace( pos, 2,
pVlcProc->getTimeVar().getAsStringCurrTime().c_str() );
}
while( (pos = temp.find( "$t" )) != UString::npos )
{
temp.replace( pos, 2,
pVlcProc->getTimeVar().getAsStringCurrTime(true).c_str() );
}
while( (pos = temp.find( "$L" )) != UString::npos )
{
temp.replace( pos, 2,
pVlcProc->getTimeVar().getAsStringTimeLeft().c_str() );
}
while( (pos = temp.find( "$l" )) != UString::npos )
{
temp.replace( pos, 2,
pVlcProc->getTimeVar().getAsStringTimeLeft(true).c_str() );
}
while( (pos = temp.find( "$D" )) != UString::npos )
{
temp.replace( pos, 2,
pVlcProc->getTimeVar().getAsStringDuration().c_str() );
}
while( (pos = temp.find( "$d" )) != UString::npos )
{
temp.replace( pos, 2,
pVlcProc->getTimeVar().getAsStringDuration(true).c_str() );
}
while( (pos = temp.find( "$V" )) != UString::npos )
{
temp.replace( pos, 2,
pVlcProc->getVolumeVar().getAsStringPercent().c_str() );
}
while( (pos = temp.find( "$N" )) != UString::npos )
{
temp.replace( pos, 2, pVlcProc->getStreamNameVar().get() );
}
while( (pos = temp.find( "$F" )) != UString::npos )
{
temp.replace( pos, 2, pVlcProc->getStreamURIVar().get() );
}
while( (pos = temp.find( "$B" )) != UString::npos )
{
temp.replace( pos, 2, pVlcProc->getStreamBitRateVar().get() );
}
while( (pos = temp.find( "$S" )) != UString::npos )
{
temp.replace( pos, 2, pVlcProc->getStreamSampleRateVar().get() );
}
while( (pos = temp.find( "$R" )) != UString::npos )
{
temp.replace( pos, 2, pVlcProc->getSpeedVar().get() );
}
return temp;
}
