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GitHub Remove Diff Signs

A userscript that removes the "+" and "-" from code diffs

当前为 2016-04-05 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name          GitHub Remove Diff Signs
  3. // @version       1.0.1
  4. // @description   A userscript that removes the "+" and "-" from code diffs
  5. // @license       https://creativecommons.org/licenses/by-sa/4.0/
  6. // @namespace     http://github.com/Mottie
  7. // @include       https://github.com/*
  8. // @grant         none
  9. // @run-at        document-idle
  10. // @author        Rob Garrison
  11. // ==/UserScript==
  12. /*jshint unused:true */
  13. (function() {
  14.   "use strict";
  15.  
  16.   var busy = false,
  17.  
  18.   processDiff = function() {
  19.     busy = true;
  20.     if (document.querySelector(".highlight")) {
  21.       var indx = 0,
  22.  
  23.       els = document.querySelectorAll(".blob-code-deletion .blob-code-inner, .blob-code-addition .blob-code-inner"),
  24.       len = els.length,
  25.  
  26.       // target "+" and "-" at start
  27.       regex = /^[+-]/,
  28.  
  29.       // loop with delay to allow user interaction
  30.       loop = function() {
  31.         var el, txt,
  32.         // max number of DOM insertions per loop
  33.         max = 0;
  34.         while ( max < 20 && indx < len ) {
  35.           if (indx >= len) { return; }
  36.           el = els[indx];
  37.           txt = el.childNodes[0].textContent;
  38.           el.childNodes[0].textContent = txt.replace(regex, " ");
  39.           max++;
  40.           indx++;
  41.         }
  42.         if (indx < len) {
  43.           setTimeout(function(){
  44.             loop();
  45.           }, 200);
  46.         }
  47.       };
  48.       loop();
  49.     }
  50.     busy = false;
  51.   },
  52.  
  53.   init = function() {
  54.     if (document.querySelector("#files.diff-view")) {
  55.       processDiff();
  56.     }
  57.   },
  58.  
  59.   // DOM targets - to detect GitHub dynamic ajax page loading
  60.   targets = document.querySelectorAll([
  61.     "#js-repo-pjax-container",
  62.     "#js-pjax-container"
  63.   ].join(","));
  64.  
  65.   // update TOC when content changes
  66.   Array.prototype.forEach.call(targets, function(target) {
  67.     new MutationObserver(function(mutations) {
  68.       mutations.forEach(function(mutation) {
  69.         // preform checks before adding code wrap to minimize function calls
  70.         if (!busy && mutation.target === target) {
  71.           init();
  72.         }
  73.       });
  74.     }).observe(target, {
  75.       childList: true,
  76.       subtree: true
  77.     });
  78.   });
  79.  
  80.   init();
  81.  
  82. })();