setMutationHandler

MutationObserver wrapper to wait for the specified CSS selector

目前为 2015-10-12 提交的版本。查看最新版本。

此脚本不应直接安装，它是一个供其他脚本使用的外部库。如果您需要使用该库，请在脚本元属性加入：// @require https://update.gf.qytechs.cn/scripts/12228/79812/setMutationHandler.js

提问、发表评价，或者举报这个脚本。

作者: woxxom
版本: 2
创建于: 2015-09-05
更新于: 2015-10-12
大小: 1.2 KB
许可证: 暂无

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

First, load the function in your script metablock:

..............
// @require       https://gf.qytechs.cn/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://gf.qytechs.cn/scripts/12228/code/setMutationHandler.js
..............
// ==/UserScript==

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