- From: Al Gilman <asgilman@iamdigex.net>
- Date: Tue, 26 Mar 2002 11:49:38 -0500
- To: w3c-wai-ua@w3.org
[Information that may be useful for Thursday's meeting. - Al] The current drafts of the Event Target interface in the DOM Events definition for DOM3 adds two new methods, canTrigger and isRegisteredHere. These were introduced as a response to requests from the WAI. WAI reference: <quote cite="http://lists.w3.org/Archives/Public/w3c-wai-ua/2002JanMar/0032.html"> 1. Resolved There will be two boolean tests available on a node for event handlers. One to test if a node will respond to a particular event (node is in the event path) and one to test if the event handler is actually on this specific node. Action DOM: DOM working group will return with the specifications for UAAG review </quote> DOM reference: <quote cite="http://www.w3.org/TR/2002/WD-DOM-Level-3-Events-20020208/events.html#Events-EventTarget"> -- canTrigger introduced in DOM Level 3 This method allows the DOM application to know if an event listener, attached to this EventTarget or one of its ancestors, will be triggered by the specified event type during the dispatch of the event to this event target or one of its descendants. Parameters type of type DOMString The event type for which the [136]EventListener is registered. Return Value boolean true if an event listener will be triggered on the event target with the specified event type, false otherwise. No Exceptions -- isRegisteredHere introduced in DOM Level 3 This method allows the DOM application to know if this event target contains an event listener registered for the specified event type. This is useful for determining at which nodes within a hierarchy altered handling of specific event types has been introduced, but should not be used to determine whether the specified event type triggers a listener (see canTrigger). Issue canTriggerOnTarget-useCapture: do we need a useCapture parameter? Resolution: No use case for that. Parameters type of type DOMString The event type for which the [141]EventListener is registered. Return Value boolean true if an event listener is registered on this EventTarget for the specified event type, false otherwise. -- The DOM working group believes that these method specifications answer the above action item. Al
Received on Tuesday, 26 March 2002 11:49:41 UTC