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Canvas event handling: Difference between revisions
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Listeners - simple Nasal functions - can be attached to every element inside the Canvas and the Canvas itself. Once a certain action - like moving the mouse or pressing a button - occurs the associated listeners are called. We can use this for example to detect whether the mouse has moved over an element or if a certain element has been clicked. | Listeners - simple Nasal functions - can be attached to every element inside the Canvas and the Canvas itself. Once a certain action - like moving the mouse or pressing a button - occurs the associated listeners are called. We can use this for example to detect whether the mouse has moved over an element or if a certain element has been clicked. | ||
{{Note|{{FGCquote | |||
|Just keep in mind that there will be no support for mouseover/hover events.<br/> | |||
Mouse clicks/wheel/drag work, but there is no support for mouse move in PUI/XML (CanvasWidget). | |||
|{{cite web |url=http://forum.flightgear.org/viewtopic.php?p=213533#p213533 | |||
|title=<nowiki>Re: Using a PUI CanvasWidget as a Canvas.Window ?</nowiki> | |||
|author=<nowiki>TheTom</nowiki> | |||
|date=<nowiki>Thu Jun 26</nowiki> | |||
}} | |||
}} | |||
}} | |||
= Listen for events = | = Listen for events = | ||