Wt::EventSignalBase Class Reference

Abstract base class of an event signal. More...

Inheritance diagram for Wt::EventSignalBase:

Public Member Functions
const char *	name () const
	Returns the event name. More...
virtual bool	isConnected () const
	Returns whether this signal is connected. More...
void	disconnect (JSlot &slot)
	Disconnects a JSlot.
void	preventDefaultAction (bool prevent=true)
	Prevents the default browser action. More...
bool	defaultActionPrevented () const
	Returns whether the default browser action is prevented. More...
void	preventPropagation (bool prevent=true)
	Prevents event propagation. More...
bool	propagationPrevented () const
	Returns whether event propagation is prevented. More...
Public Member Functions inherited from Wt::SignalBase
WObject *	sender () const
	Returns the sender. More...
virtual Wt::Signals::connection	connect (WObject *target, WObject::Method method)=0
	Connects to a slot. More...
template<class T , class V >
Wt::Signals::connection	connect (T *target, void(V::*method)())
	Connects to a slot. More...

Detailed Description

Abstract base class of an event signal.

An event signal is directly associated with a user-interface generated event.

Member Function Documentation

bool Wt::EventSignalBase::defaultActionPrevented

(

)

const

Returns whether the default browser action is prevented.

See also

preventDefaultAction()

bool Wt::EventSignalBase::isConnected ( ) const

virtual

Returns whether this signal is connected.

Returns true when the signal was connected to to at least one slot.

Implements Wt::SignalBase.

Reimplemented in Wt::EventSignal< E >, Wt::JSignal< A1, A2, A3, A4, A5, A6 >, Wt::JSignal< double >, Wt::JSignal<>, Wt::JSignal< std::string, int >, Wt::JSignal< std::string, std::string, std::string, std::string, Wt::WTouchEvent >, Wt::JSignal< std::string >, Wt::JSignal< int, int, std::string, std::string, Wt::WMouseEvent >, Wt::JSignal< int, int >, Wt::JSignal< Wt::WGoogleMap::Coordinate >, Wt::JSignal< int >, Wt::JSignal< void >, Wt::JSignal< double, double >, Wt::JSignal< std::string, std::string, Wt::WMouseEvent, struct NoClass, struct NoClass, struct NoClass >, Wt::JSignal< ::uint64_t >, Wt::JSignal< Wt::WTouchEvent >, Wt::JSignal< std::string, int, std::string >, Wt::JSignal< bool >, Wt::JSignal< std::string, std::string, Wt::WTouchEvent, struct NoClass, struct NoClass, struct NoClass >, Wt::JSignal< std::string, std::string, std::string, std::string, Wt::WMouseEvent >, Wt::JSignal< ::int64_t >, Wt::JSignal< int, int, int, int >, and Wt::JSignal< std::string, std::string >.

const char* Wt::EventSignalBase::name

(

)

const

Returns the event name.

The event name is implementation-defined.

void Wt::EventSignalBase::preventDefaultAction

(

bool

prevent = true

)

Prevents the default browser action.

Use this method to prevent the default browser action associated with this event.

See also

setPreventPropagation()

void Wt::EventSignalBase::preventPropagation

(

bool

prevent = true

)

Prevents event propagation.

Use this method to prevent that the event propagates further to its ancestors.

See also

preventDefaultAction()

bool Wt::EventSignalBase::propagationPrevented

(

)

const

Returns whether event propagation is prevented.

See also

preventPropagation()