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我的鼠标手势

一个简单的鼠标手势脚本

目前为 2014-11-21 提交的版本。查看 最新版本。

  1. // ==UserScript==
  2. // @name               My Mouse Gestures
  3. // @name:zh-CN         我的鼠标手势
  4. // @name:zh-TW         我的滑鼠手勢
  5. // @description        A simple mouse gesture script
  6. // @description:zh-CN  一个简单的鼠标手势脚本
  7. // @description:zh-TW  一個簡單的滑鼠手勢腳本
  8. // @version            0.1.3
  9. // @include            *
  10. // @run-at             document-start
  11. // @grant              GM_openInTab
  12. // @noframes
  13. // @namespace          https://greasyfork.org/users/4968
  14. // ==/UserScript==
  15.  
  16.  
  17. // --- Settings ---
  18.  
  19. var SENSITIVITY = 3; // 1 ~ 5
  20. var TOLERANCE = 3; // 1 ~ 5
  21.  
  22. var funcs = {
  23.     'DR': function() {
  24.         window.top.close();
  25.     },
  26.     'U': function() {
  27.         window.scrollTo(0, 0);
  28.     },
  29.     'D': function() {
  30.         window.scrollTo(0, 1073741824);
  31.     },
  32.     'L': function() {
  33.         window.history.back();
  34.     },
  35.     'R': function() {
  36.         window.history.forward();
  37.     },
  38.     'RU': function() {
  39.         GM_openInTab('about:newtab', false);
  40.     },
  41.     'UD': function() {
  42.         window.location.reload();
  43.     }
  44. };
  45.  
  46. // ----------------
  47.  
  48.  
  49. var s = 1 << ((7 - SENSITIVITY) << 1);
  50. var t1 = Math.tan(0.15708 * TOLERANCE), t2 = 1 / t1;
  51.  
  52. var x, y, path;
  53.  
  54. function tracer(e) {
  55.     var cx = e.clientX,
  56.         cy = e.clientY,
  57.         deltaX = cx - x,
  58.         deltaY = cy - y,
  59.         slope = Math.abs(deltaY / deltaX),
  60.         distance = deltaX * deltaX + deltaY * deltaY,
  61.         direction = '';
  62.     if (distance > s) {
  63.         if (slope > t1) {
  64.             if (deltaY > 0) {
  65.                 direction = 'D';
  66.             } else {
  67.                 direction = 'U';
  68.             }
  69.         } else if (slope <= t2) {
  70.             if (deltaX > 0) {
  71.                 direction = 'R';
  72.             } else {
  73.                 direction = 'L';
  74.             }
  75.         }
  76.         if (path.slice(-1) != direction) {
  77.             path += direction;
  78.         }
  79.         x = cx;
  80.         y = cy;
  81.     }
  82. }
  83.  
  84. window.addEventListener('mousedown', function(e) {
  85.     if (e.which == 3) {
  86.         x = e.clientX;
  87.         y = e.clientY;
  88.         path = "";
  89.         window.addEventListener('mousemove', tracer, false);
  90.     }
  91. }, false);
  92.  
  93. window.addEventListener('contextmenu', function(e) {
  94.     window.removeEventListener('mousemove', tracer, false);
  95.     if (path != "") {
  96.         e.preventDefault();
  97.         if (funcs.hasOwnProperty(path)) {
  98.             funcs[path]();
  99.         }
  100.     }
  101. }, false);