Stackoverflow Add Button For Copy to clipboard

Stackoverflow Add Button For Copy to clipboard.
Verzia zo dňa 05.01.2022. Pozri najnovšiu verziu.
Spýtať sa otázku, uverejniť recenziu, alebo nahlásiť skript.
Zalomiť riadky
// ==UserScript==

// @namespace    https://greatest.deepsurf.us/zh-TW/users/142344-jasn-hr
// @name         Stackoverflow Add Button For Copy to clipboard
// @description  Stackoverflow Add Button For Copy to clipboard.
// @copyright    2022, HrJasn (https://greatest.deepsurf.us/zh-TW/users/142344-jasn-hr)
// @license      GPL-3.0-or-later
// @version      1.2
// @icon         https://www.google.com/s2/favicons?domain=stackoverflow.com
// @include      https://stackoverflow.com/questions/*
// @grant        none
// ==/UserScript==

window.onload = function() {

    const precodeObjs = document.querySelectorAll('pre code');
    
    const scrollbarChange = function(){
        let copyBtn = this.querySelector('input[value="Copy"]');
        copyBtn.style.right = (5-this.scrollLeft) + 'px';
        copyBtn.style.bottom = (5-this.scrollTop) + 'px';
    }

    precodeObjs.forEach(function(precodeObj){
        let copyBtn = document.createElement('input');
        copyBtn.type='button';
        copyBtn.value='Copy';
        copyBtn.style='cursor:pointer;opacity:0;position:absolute;right:5px;bottom:5px;font-size:15px;padding:10px;background-color:#888888;border:0px;border-style:solid;color: #ffffff;text-shadow: 0px 0px 2px #ffffff;border-radius:5px;';
        precodeObj.parentNode.style.position = 'relative';
        precodeObj.parentNode.appendChild(copyBtn);
        precodeObj.parentNode.addEventListener("wheel",scrollbarChange,false);
        precodeObj.parentNode.addEventListener("scroll",scrollbarChange,false);
        precodeObj.parentNode.addEventListener("keydown",scrollbarChange,false);
        copyBtn.addEventListener('click', function(){
            let targetObj = this.parentNode;
            let srcText = targetObj.textContent || targetObj.innerText || targetObj.nodeValue || '';
            navigator.clipboard.writeText(srcText);
            //let clipText = navigator.clipboard.readText();
            console.log(srcText);
            if(srcText !== undefined){
                this.value='Copied';
            }
        });
        copyBtn.addEventListener('mouseenter', function(){
            this.style.opacity = 1;
        });
        copyBtn.addEventListener('mouseleave', function(){
            this.style.opacity = 0;
        });
    });

}