20615 2013-01-09 03:01:29 +0000 [Shadow]: Clarify 'At the time of event dispatch:" 2013-07-17 20:37:38 +0000 1 1 1 Unclassified WebAppsWG HISTORICAL - Component Model unspecified PC All RESOLVED DUPLICATE 20604 P2 normal --- 15480 1 hayato dglazkov public-webapps-bugzilla oldest_to_newest 81098 0 hayato 2013-01-09 03:01:29 +0000 Shadow DOM spec 5.5 (https://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/shadow/index.html#event-dispatch) says: 'At the time of event dispatch', .. It sounds a little ambiguous. My understanding is 'before starting capturing phase'. I mean that all of target, relatedTarget, and MouseEvent offsetX/Y should be pre-calculated in every nodes in the propagation path before starting capturing phase so that the result of calling event listeners does not affect these values. It might be better to clarify when we should calculate these values. 81099 1 hayato 2013-01-09 03:15:02 +0000 This is an implementation matter, but I'd like to note that pre-calculating MouseEvent offsetX and offsetY in every nodes might needs some cost since offsetX or offsetY seems lazy evaluated in current WebKit's implementation. 90883 2 dglazkov 2013-07-17 20:37:38 +0000 *** This bug has been marked as a duplicate of bug 20604 ***