setMutationHandler

MutationObserver wrapper to wait for the specified CSS selector

As of 11.02.2017. See ბოლო ვერსია.

ეს სკრიპტი არ უნდა იყოს პირდაპირ დაინსტალირებული. ეს ბიბლიოთეკაა, სხვა სკრიპტებისთვის უნდა ჩართეთ მეტა-დირექტივაში // @require https://update.greasyfork.org/scripts/12228/174471/setMutationHandler.js.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

ავტორი
woxxom
ვერსია
3.0.0
შექმნილია
05.09.2015
განახლებულია
11.02.2017
Size
3,06 KB
ლიცენზია
პ/გ

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://greasyfork.org/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';
        });
        return false; // stop observing 
    });
    
  • The observation target parameter may be omitted so "document" will be used by default:

    setMutationHandler('.container p.some-selector', function(nodes) { ...... });
    
  • Process existing elements and set a mutation handler for the future ones

    processExistingAndSetMutationHandler('a', processLinks);
    
  • 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';
        });
        return false; // 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);
        //return false; // stop observing 
    });
    
  • 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==