24810 2014-02-25 18:57:03 +0000 "invoke MutationObserver object" should be updated for microtasks 2014-04-23 15:38:31 +0000 1 1 1 Unclassified WHATWG HTML unspecified PC All RESOLVED FIXED P2 normal Unsorted 1 ian ian ian mike philipj rafaelw www-dom contributor oldest_to_newest 101368 0 ian 2014-02-25 18:57:03 +0000 http://dom.spec.whatwg.org/#mutation-observers See bug 22296. Mutation observers should now queue a "compound microtask", and each time they call a callback, they should "execute a compound microtask subtask" to run the steps that invoke the callback. (This microtask might end up interrupted and queued on the main event loop, letting the compound microtask immediately continue.) 102536 1 annevk 2014-03-18 09:17:33 +0000 *** Bug 24725 has been marked as a duplicate of this bug. *** 102538 2 annevk 2014-03-18 09:37:42 +0000 I'm not sure I'm fully following the new world order. http://dom.spec.whatwg.org/#concept-mo-invoke is all I have right now. It seems the substeps of step 2 can be wrapped in a "execute a compound microtask subtask" to do those steps. I guess each time a mutation record is added to a record queue I could check a global flag to see if a compound microtask is already queued and if not, add a compound microtask to the queue that'll invoke "concept-mo-invoke" and add a step 4 to "concept-mo-invoke" to clear this new flag, but I'm not a 100% sure that will do the right thing. 102594 3 rafaelw 2014-03-18 18:35:12 +0000 That's close to what blink actually does, except that clearing the flag is step 0, rather than step 4, and step 3 just goes away. 102601 4 annevk 2014-03-18 19:18:20 +0000 I see. 3 goes away because at that point you'd have a new compound microtask scheduled. Okay, I think I got it now. I will fix this tomorrow hopefully. 102627 5 annevk 2014-03-19 11:31:02 +0000 https://github.com/whatwg/dom/commit/d8b0057ca0dabb961d9d8435fba5e0b5544946d8 Back to you, Ian. 102710 6 ian 2014-03-20 21:02:35 +0000 <annevk> scripting environment is no longer a thing DOM has now or needs HTML to define so you can remove that <annevk> and under microtask checkpoint there's a bit of cleanup you can do 104281 7 ian 2014-04-23 15:38:31 +0000 r8577 http://html5.org/r/8577