setMutationHandler

MutationObserver wrapper to wait for the specified CSS selector

От 13.10.2015. Виж последната версия.

Този скрипт не може да бъде инсталиран директно. Това е библиотека за други скриптове и може да бъде използвана с мета-директива // @require https://update.greasyfork.org/scripts/12228/80017/setMutationHandler.js

Автор
woxxom
Версия
2.0.4
Създаден
05.09.2015
Обновен
13.10.2015
Лиценз
Няма

MutationObserver wrapper to wait for an element (or elements) with the specified CSS selector.

First, load the function in your script metablock:

..............
// @require       https://greasyfork.org/scripts/12228/code/setMutationHandler.js
..............
// ==/UserScript==

Usage (single node, one-time change):

setMutationHandler(document, '.container p.some-child', function(nodes) {
    nodes[0].remove();
    this.disconnect(); // disconnect the observer, this is useful for one-time jobs
});

Usage (multiple nodes, the page is watched constantly for the added elements):

setMutationHandler(document, '.container p.some-child', function(nodes) {
    nodes.forEach(function(node) {
        node.style.display = 'none';
    });
    return true; // continue enumerating current batch of mutations
});

Usage (observe the changes only inside particular container element):

setMutationHandler(document.querySelector('.container-selector'), '.some-child', function(nodes) {
    nodes.forEach(function(node) {
        node.style.display = 'none';
    });
    return true; // continue enumerating current batch of mutations
});

You may want to make your userscript run at document-start to catch the mutations during page load:

..............
// @run-at        document-start
// @require       https://greasyfork.org/scripts/12228/code/setMutationHandler.js
..............
// ==/UserScript==