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Code Issues Releases Wiki Activity

this fixes #205

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gorhill 2014-09-16 15:39:21 -04:00
parent 01ee0f50c2
commit fc66d2626b
1 changed files with 26 additions and 8 deletions
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34
js/contentscript-end.js
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@ -478,14 +478,13 @@ var uBlockMessaging = (function(name){
'STYLE': true
};
var mutationObservedHandler = function(mutations) {
var iMutation = mutations.length;
// Added node lists will be cumulated here before being processed
var addedNodeLists = [];
var addedNodeListsTimer = null;
var mutationObservedHandler = function() {
var nodeList, iNode, node;
while ( iMutation-- ) {
nodeList = mutations[iMutation].addedNodes;
if ( !nodeList ) {
continue;
}
while ( nodeList = addedNodeLists.pop() ) {
iNode = nodeList.length;
while ( iNode-- ) {
node = nodeList[iNode];
@ -498,6 +497,7 @@ var uBlockMessaging = (function(name){
contextNodes.push(node);
}
}
addedNodeListsTimer = null;
if ( contextNodes.length !== 0 ) {
idsFromNodeList(selectNodes('[id]'));
classesFromNodeList(selectNodes('[class]'));
@ -505,8 +505,26 @@ var uBlockMessaging = (function(name){
}
};
// https://github.com/gorhill/uBlock/issues/205
// Do not handle added node directly from within mutation observer.
var mutationObservedHandlerAsync = function(mutations) {
var iMutation = mutations.length;
var nodeList;
while ( iMutation-- ) {
if ( nodeList = mutations[iMutation].addedNodes ) {
addedNodeLists.push(nodeList);
}
}
if ( addedNodeListsTimer === null ) {
// I arbitrarily chose 50 ms for now:
// I have to compromise between the overhead of processing too few
// nodes too often and the delay of many nodes less often.
addedNodeListsTimer = setTimeout(mutationObservedHandler, 50);
}
};
// https://github.com/gorhill/httpswitchboard/issues/176
var observer = new MutationObserver(mutationObservedHandler);
var observer = new MutationObserver(mutationObservedHandlerAsync);
observer.observe(document.body, {
attributes: false,
childList: true,