Highlight Every Code

HighlightEveryCode

Add a icon that allows syntax highlighting and beautify of source code snippets on current page
Versão de: 20/10/2016. Veja: a última versão.
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// ==UserScript==
// @name         HighlightEveryCode
// @name:zh-CN   代码片段高亮
// @name:zh-TW   代碼片斷高亮
// @namespace    hoothin
// @version      0.5
// @description  Add a icon that allows syntax highlighting and beautify of source code snippets on current page
// @description:zh-CN 选择代码片段后点击图标高亮并美化代码
// @description:zh-TW 選擇代碼片段后點擊圖標高亮並美化代碼
// @author       Hoothin
// @include      *
// ==/UserScript==

(function() {
    'use strict';
    var codeIcon=document.createElement("img");
    var codes;
    codeIcon.style="position:fixed;z-index:99999;display:none;cursor: pointer;";
    codeIcon.title="Show this code snippet";
    codeIcon.src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABYAAAAYAgMAAACD0OXYAAAACVBMVEX7+/swMDBTU1MLxgsCAAAAJElEQVQI12MIBYEAGLUKBBbAqAUMQICgAoAqoBQ95JaCnASjAAgXMdk3d5HTAAAAAElFTkSuQmCC";
    codeIcon.onmousedown=function(){
        let c = window.open("", "_blank", "width=750, height=400, location=0, resizable=1, menubar=0, scrollbars=0");
        let html='<title>Code Snippet</title>'+
            '<link rel="stylesheet" href="https://cdn.rawgit.com/google/code-prettify/master/styles/sons-of-obsidian.css"/>'+
            '<script>var code,codeStr;window.onload=function(){code=document.querySelector("#code");codeStr=code.innerHTML.replace(/&nbsp;/g," ");prettyPrint();}</script>'+
            '<script src="https://cdnjs.cloudflare.com/ajax/libs/prettify/r298/prettify.min.js?skin=sons-of-obsidian"></script>'+
            '<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.4/beautify.min.js"></script>'+
            '<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.4/beautify-html.min.js"></script>'+
            '<script src="https://cdnjs.cloudflare.com/ajax/libs/js-beautify/1.6.4/beautify-css.min.js"></script>'+
            'Code formatting: <a href="#" onclick="code.innerHTML=js_beautify(codeStr);code.className=\'prettyprint linenums\';prettyPrint();return false;">Javaspcript</a> '+
            '<a href="#" onclick="code.innerHTML=html_beautify(codeStr);code.className=\'prettyprint linenums\';prettyPrint();return false;">Html</a> '+
            '<a href="#" onclick="code.innerHTML=css_beautify(codeStr);code.className=\'prettyprint linenums\';prettyPrint();return false;">Css</a> '+
            '<a href="#" onclick="code.innerHTML=codeStr;code.className=\'prettyprint linenums\';prettyPrint();return false;">Raw</a>'+
            '<pre id="code" class="prettyprint linenums" style="word-wrap: break-word; white-space: pre-wrap;border: 1px solid rgb(136, 136, 204);border-radius: 8px;">' + codes + "</pre>";
        c.document.write(html);
        c.document.close();
    };
    document.body.appendChild(codeIcon);
    document.addEventListener('mousedown', function(o) {
        codeIcon.style.display="none";
    });
    document.addEventListener('mouseup', function(o) {
        if (o.button === 0 && (o.ctrlKey || o.altKey || o.metaKey)) {
            setTimeout(function(){
                codes = document.getSelection().toString().replace(/\</g,"&lt;").replace(/\>/g,"&gt;");
                if(codes){
                    codeIcon.style.display="block";
                    let pos=getMousePos(o);
                    codeIcon.style.top=pos.y+15+"px";
                    codeIcon.style.left=pos.x+15+"px";
                }
            },1);
        }
    },false);

    function getMousePos(event) {
        var e = event || window.event;
        var scrollX = document.documentElement.scrollLeft || document.body.scrollLeft;
        var scrollY = document.documentElement.scrollTop || document.body.scrollTop;
        var x = (e.pageX || e.clientX) - scrollX;
        var y = (e.pageY || e.clientY) - scrollY;
        return { 'x': x, 'y': y };
    }
})();