☰

My Mouse Gestures

A simple mouse gesture script

目前为 2014-10-17 提交的版本。查看 最新版本。

  1. // ==UserScript==
  2. // @name           My Mouse Gestures
  3. // @description    A simple mouse gesture script
  4. // @version        0.1.1
  5. // @include        *
  6. // @run-at         document-start
  7. // @grant          GM_openInTab
  8. // @noframes
  9. // @namespace      https://greasyfork.org/users/4968
  10. // ==/UserScript==
  11.  
  12.  
  13. // --- Settings ---
  14.  
  15. var SENSITIVITY = 3; // 1 ~ 5
  16. var TOLERANCE = 3; // 1 ~ 5
  17.  
  18. var funcs = {
  19.     'DR': function() {
  20.         window.top.close();
  21.     },
  22.     'U': function() {
  23.         window.scrollTo(0, 0);
  24.     },
  25.     'D': function() {
  26.         window.scrollTo(0, 1073741824);
  27.     },
  28.     'L': function() {
  29.         window.history.back();
  30.     },
  31.     'R': function() {
  32.         window.history.forward();
  33.     },
  34.     'RU': function() {
  35.         GM_openInTab('about:newtab', false);
  36.     },
  37.     'UD': function() {
  38.         window.location.reload();
  39.     }
  40. };
  41.  
  42. // ----------------
  43.  
  44.  
  45. var s = 1 << ((7 - SENSITIVITY) << 1);
  46. var t1 = Math.tan(0.15708 * TOLERANCE),
  47.     t2 = 1 / t1;
  48.  
  49. var x, y, path;
  50.  
  51. function tracer(e) {
  52.     var cx = e.clientX,
  53.         cy = e.clientY,
  54.         deltaX = cx - x,
  55.         deltaY = cy - y,
  56.         slope = Math.abs(deltaY / deltaX),
  57.         distance = deltaX * deltaX + deltaY * deltaY,
  58.         direction = '';
  59.     if (distance > s) {
  60.         if (slope > t1) {
  61.             if (deltaY > 0) {
  62.                 direction = 'D';
  63.             } else {
  64.                 direction = 'U';
  65.             }
  66.         } else if (slope <= t2) {
  67.             if (deltaX > 0) {
  68.                 direction = 'R';
  69.             } else {
  70.                 direction = 'L';
  71.             }
  72.         }
  73.         if (path.slice(-1) != direction) {
  74.             path += direction;
  75.         }
  76.         x = cx;
  77.         y = cy;
  78.     }
  79. }
  80.  
  81. window.addEventListener('mousedown', function(e) {
  82.     if (e.which == 3) {
  83.         x = e.clientX;
  84.         y = e.clientY;
  85.         path = "";
  86.         window.addEventListener('mousemove', tracer, false);
  87.     }
  88. }, false);
  89.  
  90. window.addEventListener('contextmenu', function(e) {
  91.     window.removeEventListener('mousemove', tracer, false);
  92.     if (path != "") {
  93.         e.preventDefault();
  94.         if (funcs.hasOwnProperty(path)) {
  95.             funcs[path]();
  96.         }
  97.     }
  98. }, false);