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GitHub CopyCode

Copy content of a code-block everywhere on GitHub

当前为 2018-09-07 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         GitHub CopyCode
  3. // @namespace    https://github.com/KeyWeeUsr/Userscripts
  4. // @version      0.4
  5. // @description  Copy content of a code-block everywhere on GitHub
  6. // @author       Peter Badida
  7. // @copyright    2016+, Peter Badida
  8. // @license      GPL-3.0-or-later; http://www.gnu.org/licenses/gpl-3.0.txt
  9. // @homepage     https://github.com/KeyWeeUsr/Userscripts/tree/master/CopyCode
  10. // @supportURL   https://github.com/KeyWeeUsr/Userscripts/issues
  11. // @icon         https://assets-cdn.github.com/favicon.ico
  12. // @include      *github.com*
  13. // @exclude      *gist.github.com*
  14. // @require      http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js
  15. // @contributionURL https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=ACVM74AYCXVWQ
  16. // ==/UserScript==
  17. /* jshint -W097 */
  18. 'use strict';
  19.  
  20. (function () {
  21.     function selectText(element) {
  22.         var range;
  23.         if (document.body.createTextRange) {
  24.             range = document.body.createTextRange();
  25.             range.moveToElementText(element);
  26.             range.select();
  27.         } else if (window.getSelection) {
  28.             var selection = window.getSelection();
  29.             range = document.createRange();
  30.             range.selectNodeContents(element);
  31.             selection.removeAllRanges();
  32.             selection.addRange(range);
  33.         }
  34.     }
  35.  
  36.     function addButtons() {
  37.         $("pre").each(function (i, codeBlock) {
  38.             var id = "codeButton-" + i;
  39.             var parentId = "codeButton-parent-" + i;
  40.             var codeContainer = $('<div id="' + parentId + '"></div>');
  41.  
  42.             // ignore PRE if it's a GH online editor
  43.             if (~String(codeBlock.getAttribute("class")).indexOf("CodeMirror")) {
  44.                 return;
  45.             }
  46.  
  47.             // ignore PRE if it already has a button
  48.             var oldId = codeBlock.parentNode.getAttribute("id");
  49.             if (~String(oldId).indexOf("-parent-")) {
  50.                 return;
  51.             }
  52.  
  53.             // put PRE block into DIV for easier adding of COPY button
  54.             $(codeBlock).replaceWith(codeContainer);
  55.             codeContainer.append(codeBlock);
  56.  
  57.             // mark the container, so that it's ignored later
  58.             codeContainer.attr("id", parentId);
  59.  
  60.             // create COPY button on mouse enter
  61.             codeContainer.mouseenter(function () {
  62.                 var codeButton = $('<div style="background-color: #000; ' +
  63.                                    'color: #fff; cursor: pointer; display:' +
  64.                                    'inline; font-size: 12pt; opacity: 0.5;' +
  65.                                    'padding: 3px; position: absolute;">Copy' +
  66.                                    '</div>');
  67.  
  68.                 // give button an ID for easier removing later
  69.                 codeButton.attr("id", id);
  70.  
  71.                 codeContainer.append(codeButton);
  72.                 codeButton.css('top', codeContainer.position().top);
  73.                 codeButton.css('left',
  74.                                codeContainer.position().left +
  75.                                codeContainer.width() - 50);
  76.  
  77.                 // select the whole text in PRE and copy to the clipboard
  78.                 codeButton.click(function () {
  79.                     selectText(codeBlock);
  80.                     document.execCommand("copy");
  81.                 });
  82.  
  83.                 // hovering styles
  84.                 codeButton.mouseover(function () {
  85.                     codeButton.css('opacity', 1.0);
  86.                 });
  87.                 codeButton.mouseleave(function () {
  88.                     codeButton.css('opacity', 0.5);
  89.                 });
  90.             });
  91.  
  92.             // remove COPY button on mouse leave
  93.             codeContainer.mouseleave(function () {
  94.                 $("#" + id).remove();
  95.             });
  96.         });
  97.     }
  98.  
  99.     function appendMe() {
  100.         var av_style = "opacity: 0.3; border-radius: 10px;"
  101.         var av_cont_style = "margin: 2px 10px -2px 0px;"
  102.         var av = $('<li style="' + av_cont_style + '">' +
  103.                    '<div style="float: right;"><a href="' +
  104.                    'https://github.com/KeyWeeUsr/Userscripts">' +
  105.                    '<img id="kwu_av" style="' + av_style + '" ' +
  106.                    'src="https://github.com/identicons/KeyWeeUsr.png" ' +
  107.                    'width="24"></img></a></div></li>');
  108.  
  109.         av.mouseenter(function () {
  110.             $('#kwu_av').css('opacity', 1.0);
  111.         });
  112.  
  113.         av.mouseleave(function () {
  114.             $('#kwu_av').css('opacity', 0.3);
  115.         });
  116.         $('.pagehead-actions').prepend(av);
  117.     }
  118.  
  119.     function run() {
  120.         addButtons();
  121.         if (!document.getElementById('kwu_av')){
  122.             appendMe();
  123.         }
  124.     }
  125.     // repeat in case of switching e.g. GH tabs
  126.     var runCheck = setInterval(run, 250)
  127. })();