pyjsdl.event.TouchListener

Class TouchListener

event.touchlistener

event.touchlistener.add_callback

event.touchlistener.is_active

Instance Methods

__init__(self, canvas)
Touch event listener.

activate(self)

add_callback(self, callback)
Add callback object to receive touch events. The callback should have methods onTouchStart, onTouchEnd, onTouchMove, and onTouchCancel. Optional callback method onTouchInitiate used to report initial touch event detection. Callback methods will be called with an event argument.

is_active(self)
Check if touch event is registered.

Method Details

init(self, canvas)
(Constructor)

Touch event listener.

Refer to touch event api documentation:: https://developer.mozilla.org/en-US/docs/Web/API/TouchEvent.
Notes:: The event.touches attribute is a list of touch objects. Use len(touches) for touch count and touches.item(<index>) to retrieve touch object. The touch attribute touch.clientX/touch.clientY provides touch position. Position offset checked by display getAbsoluteLeft/getAbsoluteTop/getScrollLeft/getScrollTop. Browser triggers delayed mousedown/mouseup event after touchstart/touchend event.

Module initialization creates pyjsdl.event.touchlistener instance.

Class TouchListener

__init__(self, canvas) (Constructor)

init(self, canvas)
(Constructor)