CSS rules utilities

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CSS rules utilities

function allowing to find or change the CSS rule(s) applied to an element

Este script no debería instalarse directamente. Es una biblioteca que utilizan otros scripts mediante la meta-directiva de inclusión // @require https://update.greasyfork.org/scripts/394970/768785/CSS%20rules%20utilities.js

Pregunta tus dudas, ponle nota o notifica una posible infracción de las normas.

Ajuste de línea

// ==UserScript==
// @name         CSS rules utilities
// @namespace    http://tampermonkey.net/
// @version      0.4
// @description  functions allowing to get the CSS rules applied to an element
// @author       CoStiC
// @match        *://*/*
// @grant        none
// ==/UserScript==

function findCssRules(el) {
    var sheets = document.styleSheets, ret = [];
    el.matches = el.matches || el.webkitMatchesSelector || el.mozMatchesSelector || el.msMatchesSelector || el.oMatchesSelector;
    for (var i in sheets) {
        var rules = sheets[i].rules || sheets[i].cssRules;
        for (var r in rules) {
            if (el.matches(rules[r].selectorText)) {
                ret.push(rules[r].cssText);
            }
        }
    }
    return ret;
}

function modCssRules(el, newRule, frDoc) {
    if (!frDoc || (frDoc === window)) frDoc = window.document;
    let elHover = "",
        sheets = frDoc.styleSheets;

    if (el !== null) {
        el.matches = el.matches || el.webkitMatchesSelector || el.mozMatchesSelector || el.msMatchesSelector || el.oMatchesSelector;
        for (let sheet of sheets) {
            var rules = sheet.rules || sheet.cssRules;
            for (let rule of rules) {
                if (rule.type === 1) {
                    if (el.matches(rule.selectorText)) {

                        for (let newProp in newRule.cssNormal) {
                            rule.style[newProp] = newRule.cssNormal[newProp];
                        }

                        if (typeof newRule.cssHover !== 'undefined') {
                            var rul = "";
                            for (let propHover in newRule.cssHover) {
                                rul += `${propHover}:${newRule.cssHover[propHover]} !important;`;
                            };
                            elHover = `${rules[rule].selectorText}:hover{${rul}}`;
                        }
                    } else {};
                }
            }
        }
    }

    if (elHover !== "") {
        let newHoverStyle = document.createElement('style'),
            hoverRule = document.createTextNode(elHover);
        newHoverStyle.appendChild(hoverRule);
        document.head.appendChild(newHoverStyle)
        //sheets[sheets.length - 1].insertRule(elHover);
    };
}