ui::CoreEventHandlers< T > Class Template Reference

Virtual function definitions for default event handler functions. More...

#include <event_handlers.hpp>

Inheritance diagram for ui::CoreEventHandlers< T >:

Public Member Functions
virtual void	onpress (std::function< void(T &, const Event &)> callback)=0
	Register a touchscreen event handler that triggers on press.
virtual void	onrelease (std::function< void(T &, const Event &)> callback)=0
	Register a touchscreen event handler that triggers when the widget stops being pressed.
virtual void	onblur (std::function< void(T &, const Event &)> callback)=0
	Register a touchscreen event handler that triggers when the widget stops being pressed.
virtual void	onhold (std::function< void(T &, const Event &, time_t)> callback)=0
	Register a touchscreen event handler that repeatedly triggers when the widget is held for a while.
void	onclick (std::function< void(T &, const Event &)> callback)
	Register a touchscreen event handler that triggers on release.

Detailed Description

template<class T>
class ui::CoreEventHandlers< T >

Virtual function definitions for default event handler functions.

Template Parameters

T	The derived class.

Member Function Documentation

onblur()

template<class T >

virtual void ui::CoreEventHandlers< T >::onblur ( std::function< void(T &, const Event &)>  callback )

pure virtual

Register a touchscreen event handler that triggers when the widget stops being pressed.

Parameters

callback

A callback function that is called when a widget stops being pressed after previously receiving a "press" event.

Note

Only one event handler for each type of event (press, hold, release, blur) is allowed per widget.

onclick()

template<class T >

void ui::CoreEventHandlers< T >::onclick ( std::function< void(T &, const Event &)>  callback )

inline

Register a touchscreen event handler that triggers on release.

This is identical to the onrelease() function.

Parameters

callback

A callback function that is called when this widget receives a "release" event.

Note

Only one event handler for each type of event (press, hold, release, blur) is allowed per widget.

onhold()

template<class T >

virtual void ui::CoreEventHandlers< T >::onhold ( std::function< void(T &, const Event &, time_t)>  callback )

pure virtual

Register a touchscreen event handler that repeatedly triggers when the widget is held for a while.

Parameters

callback

A callback function that is called when this widget has been continuously pressed for a while.

Note

Only one event handler for each type of event (press, hold, release, blur) is allowed per widget.

onpress()

template<class T >

virtual void ui::CoreEventHandlers< T >::onpress ( std::function< void(T &, const Event &)>  callback )

pure virtual

Register a touchscreen event handler that triggers on press.

Parameters

callback

A callback function that is called when this widget receives a "press" event.

Note

Only one event handler for each type of event (press, hold, release, blur) is allowed per widget.

onrelease()

template<class T >

virtual void ui::CoreEventHandlers< T >::onrelease ( std::function< void(T &, const Event &)>  callback )

pure virtual

Register a touchscreen event handler that triggers when the widget stops being pressed.

Parameters

callback

A callback function that is called when this widget receives a "release" event.

Note

Only one event handler for each type of event (press, hold, release, blur) is allowed per widget.

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The documentation for this class was generated from the following file:

• src/ui/core/event_handlers.hpp