privacyguides.org/theme/assets/javascripts/randomize-element.js
Jonah Aragon 3b69c565a3
Randomize DNS table order (#2438)
Signed-off-by: Daniel Gray <dngray@privacyguides.org>
2024-03-17 02:01:35 +10:30

66 lines
2.6 KiB
JavaScript

/**
* @overview Randomizes the order of an HTML element's children.
* @author Jonah Aragon <jonah@triplebit.net>
* @license
* Copyright (c) 2024 Jonah Aragon
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
// Fetch global data from meta tag
let globalData = document.querySelector("#global-data");
if (globalData.dataset.randomizeElement) {
// Get elements to be randomized from meta tag in HTML
let randomizeElement = globalData.dataset.randomizeElement;
console.log("Randomizing child elements of " + randomizeElement);
// Get all elements to be randomized
let randomizeChildren = document.querySelectorAll(randomizeElement);
let randomizeArray = Array.from(randomizeChildren);
// Handle multiple elements to be randomized
for (const element of randomizeArray) {
let selector = " > *";
if (globalData.dataset.randomizeElementSelector) {
selector = globalData.dataset.randomizeElementSelector
}
// Select all direct children of element
let children = element.querySelectorAll(randomizeElement + selector);
// Randomize rows (simple, probably not efficient)
let randomChildren = Array.from(children)
.map(value => ({ value, sort: Math.random() }))
.sort((a, b) => a.sort - b.sort)
.map(({ value }) => value);
// Replace each element with randomly selected element
for (let i = 0; i < children.length; i++) {
let child = randomChildren[i].cloneNode(true);
child.classList.add("randomized");
let parent = children[i].parentNode;
parent.insertBefore(child, children[i]);
children[i].remove();
}
}
}