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enqueue the entire MuObs handler instead.

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This commit is contained in:
Paul Irish
2018-03-19 10:31:53 -07:00
committed by Ilya Grigorik
parent 8e199cd975
commit b31d53a4d0
1 changed files with 14 additions and 21 deletions
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17
inject.js
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@@ -286,29 +286,22 @@ chrome.runtime.sendMessage({}, function(response) {
} }
} }
// Process the DOM nodes lazily
function enqueueCheckNodes(node, parent, added) {
const checkNodes = _ => checkForVideo(node, parent, added);
if ('requestIdleCallback' in window) {
requestIdleCallback(checkNodes, {timeout: 1000});
} else {
checkNodes();
}
}
var observer = new MutationObserver(function(mutations) { var observer = new MutationObserver(function(mutations) {
// Process the DOM nodes lazily
requestIdleCallback(_ => {
mutations.forEach(function(mutation) { mutations.forEach(function(mutation) {
forEach.call(mutation.addedNodes, function(node) { forEach.call(mutation.addedNodes, function(node) {
if (typeof node === "function") if (typeof node === "function")
return; return;
enqueueCheckNodes(node, node.parentNode || mutation.target, true); checkForVideo(node, node.parentNode || mutation.target, true);
}); });
forEach.call(mutation.removedNodes, function(node) { forEach.call(mutation.removedNodes, function(node) {
if (typeof node === "function") if (typeof node === "function")
return; return;
enqueueCheckNodes(node, node.parentNode || mutation.target, false); checkForVideo(node, node.parentNode || mutation.target, false);
}); });
}); });
}, {timeout: 1000});
}); });
observer.observe(document, { childList: true, subtree: true }); observer.observe(document, { childList: true, subtree: true });