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public/js/hotkeys.js

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+(function (root, factory) {
+  if (typeof define === 'function' && define.amd) {
+    // AMD. Register as an anonymous module unless amdModuleId is set
+    define('simple-hotkeys', ["jquery","simple-module"], function ($, SimpleModule) {
+      return (root['hotkeys'] = factory($, SimpleModule));
+    });
+  } else if (typeof exports === 'object') {
+    // Node. Does not work with strict CommonJS, but
+    // only CommonJS-like environments that support module.exports,
+    // like Node.
+    module.exports = factory(require("jquery"),require("simple-module"));
+  } else {
+    root.simple = root.simple || {};
+    root.simple['hotkeys'] = factory(jQuery,SimpleModule);
+  }
+}(this, function ($, SimpleModule) {
+
+var Hotkeys, hotkeys,
+  extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
+  hasProp = {}.hasOwnProperty;
+
+Hotkeys = (function(superClass) {
+  extend(Hotkeys, superClass);
+
+  function Hotkeys() {
+    return Hotkeys.__super__.constructor.apply(this, arguments);
+  }
+
+  Hotkeys.count = 0;
+
+  Hotkeys.keyNameMap = {
+    8: "Backspace",
+    9: "Tab",
+    13: "Enter",
+    16: "Shift",
+    17: "Control",
+    18: "Alt",
+    19: "Pause",
+    20: "CapsLock",
+    27: "Esc",
+    32: "Spacebar",
+    33: "PageUp",
+    34: "PageDown",
+    35: "End",
+    36: "Home",
+    37: "Left",
+    38: "Up",
+    39: "Right",
+    40: "Down",
+    45: "Insert",
+    46: "Del",
+    91: "Meta",
+    93: "Meta",
+    48: "0",
+    49: "1",
+    50: "2",
+    51: "3",
+    52: "4",
+    53: "5",
+    54: "6",
+    55: "7",
+    56: "8",
+    57: "9",
+    65: "A",
+    66: "B",
+    67: "C",
+    68: "D",
+    69: "E",
+    70: "F",
+    71: "G",
+    72: "H",
+    73: "I",
+    74: "J",
+    75: "K",
+    76: "L",
+    77: "M",
+    78: "N",
+    79: "O",
+    80: "P",
+    81: "Q",
+    82: "R",
+    83: "S",
+    84: "T",
+    85: "U",
+    86: "V",
+    87: "W",
+    88: "X",
+    89: "Y",
+    90: "Z",
+    96: "0",
+    97: "1",
+    98: "2",
+    99: "3",
+    100: "4",
+    101: "5",
+    102: "6",
+    103: "7",
+    104: "8",
+    105: "9",
+    106: "Multiply",
+    107: "Add",
+    109: "Subtract",
+    110: "Decimal",
+    111: "Divide",
+    112: "F1",
+    113: "F2",
+    114: "F3",
+    115: "F4",
+    116: "F5",
+    117: "F6",
+    118: "F7",
+    119: "F8",
+    120: "F9",
+    121: "F10",
+    122: "F11",
+    123: "F12",
+    124: "F13",
+    125: "F14",
+    126: "F15",
+    127: "F16",
+    128: "F17",
+    129: "F18",
+    130: "F19",
+    131: "F20",
+    132: "F21",
+    133: "F22",
+    134: "F23",
+    135: "F24",
+    59: ";",
+    61: "=",
+    186: ";",
+    187: "=",
+    188: ",",
+    190: ".",
+    191: "/",
+    192: "`",
+    219: "[",
+    220: "\\",
+    221: "]",
+    222: "'"
+  };
+
+  Hotkeys.aliases = {
+    "escape": "esc",
+    "delete": "del",
+    "return": "enter",
+    "ctrl": "control",
+    "space": "spacebar",
+    "ins": "insert",
+    "cmd": "meta",
+    "command": "meta",
+    "wins": "meta",
+    "windows": "meta"
+  };
+
+  Hotkeys.normalize = function(shortcut) {
+    var i, j, key, keyname, keys, len;
+    keys = shortcut.toLowerCase().replace(/\s+/gi, "").split("+");
+    for (i = j = 0, len = keys.length; j < len; i = ++j) {
+      key = keys[i];
+      keys[i] = this.aliases[key] || key;
+    }
+    keyname = keys.pop();
+    keys.sort().push(keyname);
+    return keys.join("_");
+  };
+
+  Hotkeys.prototype.opts = {
+    el: document
+  };
+
+  Hotkeys.prototype._init = function() {
+    this.id = ++this.constructor.count;
+    this._map = {};
+    this._delegate = typeof this.opts.el === "string" ? document : this.opts.el;
+    return $(this._delegate).on("keydown.simple-hotkeys-" + this.id, this.opts.el, (function(_this) {
+      return function(e) {
+        var ref;
+        return (ref = _this._getHander(e)) != null ? ref.call(_this, e) : void 0;
+      };
+    })(this));
+  };
+
+  Hotkeys.prototype._getHander = function(e) {
+    var keyname, shortcut;
+    if (!(keyname = this.constructor.keyNameMap[e.which])) {
+      return;
+    }
+    shortcut = "";
+    if (e.altKey) {
+      shortcut += "alt_";
+    }
+    if (e.ctrlKey) {
+      shortcut += "control_";
+    }
+    if (e.metaKey) {
+      shortcut += "meta_";
+    }
+    if (e.shiftKey) {
+      shortcut += "shift_";
+    }
+    shortcut += keyname.toLowerCase();
+    return this._map[shortcut];
+  };
+
+  Hotkeys.prototype.respondTo = function(subject) {
+    if (typeof subject === 'string') {
+      return this._map[this.constructor.normalize(subject)] != null;
+    } else {
+      return this._getHander(subject) != null;
+    }
+  };
+
+  Hotkeys.prototype.add = function(shortcut, handler) {
+    this._map[this.constructor.normalize(shortcut)] = handler;
+    return this;
+  };
+
+  Hotkeys.prototype.remove = function(shortcut) {
+    delete this._map[this.constructor.normalize(shortcut)];
+    return this;
+  };
+
+  Hotkeys.prototype.destroy = function() {
+    $(this._delegate).off(".simple-hotkeys-" + this.id);
+    this._map = {};
+    return this;
+  };
+
+  return Hotkeys;
+
+})(SimpleModule);
+
+hotkeys = function(opts) {
+  return new Hotkeys(opts);
+};
+
+return hotkeys;
+
+}));
+