MutationObserver wrapper to wait for the specified CSS selector
Verzia zo dňa
Tento skript by nemal byť nainštalovaný priamo. Je to knižnica pre ďalšie skripty, ktorú by mali používať cez meta príkaz // @require https://update.greatest.deepsurf.us/scripts/12228/73901/setMutationHandler.js
/* EXAMPLE:
setMutationHandler(document, '.container p.some-child', function(observer, nodes) {
// single node:
nodes[0].remove();
// or multiple nodes:
[].forEach.call(nodes, function(node) {
node.style.display = 'none';
});
//observer.disconnect(); // disconnect the observer, this is useful for one-time jobs
return true; // continue enumerating current batch of mutations
});
*/
// ==UserScript==
// @name setMutationHandler
// @description MutationObserver wrapper to wait for the specified CSS selector
// @namespace wOxxOm.scripts
// @author wOxxOm
// @grant none
// @version 1
// ==/UserScript==
function setMutationHandler(baseNode, selector, cb) {
var ob = new MutationObserver(function(mutations) {
for (var i=0, ml=mutations.length, m; (i<ml) && (m=mutations[i]); i++)
for (var j=0, nodes=m.addedNodes, nl=nodes.length, n; (j<nl) && (n=nodes[j]); j++)
if (n.nodeType == 1)
if ((n = n.matches(selector) ? [n] : n.querySelectorAll(selector)) && n.length)
if (!cb(ob, n))
return;
});
ob.observe(baseNode, {subtree:true, childList:true});
return ob;
}