setMutationHandler

MutationObserver wrapper to wait for the specified CSS selector

目前为 2016-10-10 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/12228/151756/setMutationHandler.js

提问、发表评价，或者举报这个脚本。

作者: woxxom
版本: 2.0.9
创建于: 2015-09-05
更新于: 2016-10-10
大小: 1.9 KB
许可证: 暂无

A 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==

Watch for added nodes:

setMutationHandler(document, '.container p.some-selector', function(nodes) {
    nodes.forEach(function(node) {
        node.style.display = 'none';
    });
    //this.disconnect(); // stop observing 
});

Watch for added nodes only inside the specified container element that already exists in the document:

setMutationHandler(document.querySelector('.container-selector'), '.some-selector', function(nodes) {
    nodes.forEach(function(node) {
        node.style.display = 'none';
    });
    //this.disconnect(); // stop observing 
});

Advanced example with customized options to watch for changes in the title attribute:

setMutationHandler(document, '.some-selector', processNodes, {
    attributes: true, attributeFilter: ['title'],
    subtree: true
});
function processNodes(nodes) {
    console.log(nodes);
    //this.disconnect(); // stop observing 
});

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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