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In table (5.1.1 List of DOM3 Event Types) click event has only this: Default Action: DOMActivate event This should be extended, example: Varies: DOMActivate event, execute activation behavior (if any), give document focus to focusable element Definition click event lists those cases (https://dvcs.w3.org/hg/dom3events/raw-file/tip/html/DOM3-Events.html#event-type-click).
Similar for dblclick, now we have: Default action None (in both table) but in description: "As with the click event type, the default action of the dblclick event type varies based on the event target of the event and the value of the MouseEvent.button or MouseEvent.buttons attributes. Normally, the typical default actions of the dblclick event type match those of the click event type, with the following additional behavior: If the event target is selectable, the default action MUST be to select part or all of the selectable content. Subsequent clicks MAY select additional selectable portions of that content."
Now fixed in latest draft. Thanks! https://dvcs.w3.org/hg/dom3events/rev/c922236525f6