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ds-Keybinding (alt).js
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ds-Keybinding (alt).js
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(function(root, Backbone, _, $) {
var Keycodes = {
DOM_VK_CANCEL: 3,
DOM_VK_HELP: 6,
DOM_VK_BACK_SPACE: 8,
DOM_VK_TAB: 9,
DOM_VK_CLEAR: 12,
DOM_VK_RETURN: 13,
DOM_VK_ENTER: 14,
DOM_VK_SHIFT: 16,
DOM_VK_CONTROL: 17,
DOM_VK_ALT: 18,
DOM_VK_PAUSE: 19,
DOM_VK_CAPS_LOCK: 20,
DOM_VK_ESCAPE: 27,
DOM_VK_SPACE: 32,
DOM_VK_PAGE_UP: 33,
DOM_VK_PAGE_DOWN: 34,
DOM_VK_END: 35,
DOM_VK_HOME: 36,
DOM_VK_LEFT: 37,
DOM_VK_UP: 38,
DOM_VK_RIGHT: 39,
DOM_VK_DOWN: 40,
DOM_VK_SELECT: 41,
DOM_VK_PRINT: 42,
DOM_VK_EXECUTE: 43,
DOM_VK_PRINTSCREEN: 44,
DOM_VK_INSERT: 45,
DOM_VK_DELETE: 46,
DOM_VK_0: 48,
DOM_VK_1: 49,
DOM_VK_2: 50,
DOM_VK_3: 51,
DOM_VK_4: 52,
DOM_VK_5: 53,
DOM_VK_6: 54,
DOM_VK_7: 55,
DOM_VK_8: 56,
DOM_VK_9: 57,
DOM_VK_COLON: 58,
DOM_VK_SEMICOLON: 59,
DOM_VK_LESS_THAN: 60,
DOM_VK_EQUALS: 61,
DOM_VK_GREATER_THAN: 62,
DOM_VK_QUESTION_MARK: 63,
DOM_VK_AT: 64,
DOM_VK_A: 65,
DOM_VK_B: 66,
DOM_VK_C: 67,
DOM_VK_D: 68,
DOM_VK_E: 69,
DOM_VK_F: 70,
DOM_VK_G: 71,
DOM_VK_H: 72,
DOM_VK_I: 73,
DOM_VK_J: 74,
DOM_VK_K: 75,
DOM_VK_L: 76,
DOM_VK_M: 77,
DOM_VK_N: 78,
DOM_VK_O: 79,
DOM_VK_P: 80,
DOM_VK_Q: 81,
DOM_VK_R: 82,
DOM_VK_S: 83,
DOM_VK_T: 84,
DOM_VK_U: 85,
DOM_VK_V: 86,
DOM_VK_W: 87,
DOM_VK_X: 88,
DOM_VK_Y: 89,
DOM_VK_Z: 90,
DOM_VK_CONTEXT_MENU: 93,
DOM_VK_NUMPAD0: 96,
DOM_VK_NUMPAD1: 97,
DOM_VK_NUMPAD2: 98,
DOM_VK_NUMPAD3: 99,
DOM_VK_NUMPAD4: 100,
DOM_VK_NUMPAD5: 101,
DOM_VK_NUMPAD6: 102,
DOM_VK_NUMPAD7: 103,
DOM_VK_NUMPAD8: 104,
DOM_VK_NUMPAD9: 105,
DOM_VK_MULTIPLY: 106,
DOM_VK_ADD: 107,
DOM_VK_SEPARATOR: 108,
DOM_VK_SUBTRACT: 109,
DOM_VK_DECIMAL: 110,
DOM_VK_DIVIDE: 111,
DOM_VK_F1: 112,
DOM_VK_F2: 113,
DOM_VK_F3: 114,
DOM_VK_F4: 115,
DOM_VK_F5: 116,
DOM_VK_F6: 117,
DOM_VK_F7: 118,
DOM_VK_F8: 119,
DOM_VK_F9: 120,
DOM_VK_F10: 121,
DOM_VK_F11: 122,
DOM_VK_F12: 123,
DOM_VK_F13: 124,
DOM_VK_F14: 125,
DOM_VK_F15: 126,
DOM_VK_F16: 127,
DOM_VK_F17: 128,
DOM_VK_F18: 129,
DOM_VK_F19: 130,
DOM_VK_F20: 131,
DOM_VK_F21: 132,
DOM_VK_F22: 133,
DOM_VK_F23: 134,
DOM_VK_F24: 135,
DOM_VK_NUM_LOCK: 144,
DOM_VK_SCROLL_LOCK: 145,
DOM_VK_CIRCUMFLEX: 160,
DOM_VK_EXCLAMATION: 161,
DOM_VK_DOUBLE_QUOTE: 162,
DOM_VK_HASH: 163,
DOM_VK_DOLLAR: 164,
DOM_VK_PERCENT: 165,
DOM_VK_AMPERSAND: 166,
DOM_VK_UNDERSCORE: 167,
DOM_VK_OPEN_PAREN: 168,
DOM_VK_CLOSE_PAREN: 169,
DOM_VK_ASTERISK: 170,
DOM_VK_PLUS: 171,
DOM_VK_PIPE: 172,
DOM_VK_HYPHEN_MINUS: 173,
DOM_VK_OPEN_CURLY_BRACKET: 174,
DOM_VK_CLOSE_CURLY_BRACKET: 175,
DOM_VK_TILDE: 176,
DOM_VK_COMMA: 188,
DOM_VK_PERIOD: 190,
DOM_VK_SLASH: 191,
DOM_VK_BACK_QUOTE: 192,
DOM_VK_OPEN_BRACKET: 219,
DOM_VK_BACK_SLASH: 220,
DOM_VK_CLOSE_BRACKET: 221,
DOM_VK_QUOTE: 222,
DOM_VK_META: 224,
DOM_VK_ALTGR: 225,
DOM_VK_WIN: 91,
DOM_VK_KANA: 21,
DOM_VK_HANGUL: 21,
DOM_VK_EISU: 22,
DOM_VK_JUNJA: 23,
DOM_VK_FINAL: 24,
DOM_VK_HANJA: 25,
DOM_VK_KANJI: 25,
DOM_VK_CONVERT: 28,
DOM_VK_NONCONVERT: 29,
DOM_VK_ACCEPT: 30,
DOM_VK_MODECHANGE: 31,
DOM_VK_SELECT: 41,
DOM_VK_PRINT: 42,
DOM_VK_EXECUTE: 43,
DOM_VK_SLEEP: 95
},
keynamePrefix = "DOM_VK_",
keyNamePattern = /^DOM_VK_([a-zA-Z0-9]+)/,
keycodeNames = _.invert(Keycodes), // For fast reverse search
likeMeta = {
"DOM_VK_WIN": true,
"DOM_VK_CONTROL": true,
"DOM_VK_CONTEXT_MENU": true
},
keybindingInstance;
function Keybinder() {
this.fallbackBindings = [];
this.KeybindingTable = {};
this.pressedKeys = [];
this.currentShortcut = "";
var self = this;
$(document).on("keydown keyup", function(e) {
self._keydownKeyupHandler(e.which, e.type === "keydown", e);
});
}
_.extend(Keybinder.prototype, {
_normalizeKeycode: function (keycode) {
return (keycode === Keycodes[keynamePrefix + "WIN"] || keycode === Keycodes[keynamePrefix + "CONTROL"]) ? Keycodes[keynamePrefix + "META"] : keycode;
},
_normalizeKeyname: function (keyname) {
keyname = keyname.trim();
keyNamePattern.test(keyname) || (keyname = keynamePrefix + keyname);
if (keyname in likeMeta) {
keyname = keynamePrefix + "META";
}
return keyNamePattern.test(keyname) ? keyname : "";
},
_validateShortcut: function (shortcut) {
if (typeof shortcut !== "string") return "";
var key, keys = shortcut.toUpperCase().split("+"), keylength = keys.length,
finalKeys = [];
while ((key = keys.shift()) != null && (key = this._normalizeKeyname(key))) {
if (Keycodes[key]) {
finalKeys.push(key);
}
}
finalKeys = _.uniq(finalKeys.sort(), true); // If there are double values in it, remove them
return (finalKeys.length === keylength) ? finalKeys.join("+") : "";
},
_updateCurrentShortcut: function () {
this.currentShortcut = this._validateShortcut(this.pressedKeys.join("+"));
},
_keydownKeyupHandler: function (keycode, keydown, e) {
var keyName, index, shortcutData;
keyName = keycodeNames[this._normalizeKeycode(keycode)];
if (keydown && keyName === _.last(this.pressedKeys)) return;
if (keydown) {
this.pressedKeys.push(keyName);
} else {
index = _.indexOf(this.pressedKeys, keyName);
this.pressedKeys.splice(index, 1);
}
this._updateCurrentShortcut();
console.log(keycode, this.getCurrentKeysAsShortcut())
if (keydown && (shortcutData = this.KeybindingTable[this.getCurrentKeysAsShortcut()])) {
console.log("Yes")
e.preventDefault();
shortcutData.callback.call(shortcutData.context);
}
},
_getShortCutByCallback: function (callback) {
return _.pluck(_.where(this.fallbackBindings, {"callback": callback}), "shortcut");
},
_getAlternativeCallbacks: function (shortcut) {
return _.pluck(_.where(this.fallbackBindings, {"shortcut": shortcut}), "callback");
},
getCurrentKeysAsShortcut: function () {
return this.currentShortcut;
},
bind: function (shortcut, callback, context, overwrite) {
if (typeof context === "boolean") {
overwrite = context;
context = null;
} else if (overwrite === undefined) {
overwrite = true;
}
context || (context = null);
if ((shortcut = this._validateShortcut(shortcut)) && (!this.KeybindingTable[shortcut] || overwrite)) {
this.fallbackBindings.push({
"shortcut": shortcut,
"callback": callback,
"context": context
});
this.KeybindingTable[shortcut] = {"callback": callback, "context": context};
}
},
unbind: function (shortcutOrCallback, newCallback) {
var shortcut = typeof shortcutOrCallback === "string" ? shortcutOrCallback : this._getShortCutByCallback(callback)[0],
callback = typeof shortcutOrCallback === "function" ? shortcutOrCallback : this.KeybindingTable[shortcut].callback;
newCallback = _.without(typeof newCallback === "function" ? [newCallback] : this._getAlternativeCallbacks(shortcut), callback);
if (shortcut && callback && this.KeybindingTable[shortcut] === callback) {
this.KeybindingTable[shortcut] = newCallback.length ? _.last(newCallback) : undefined;
}
},
isKeyPressed: function (keyName) {
return (keyName = this._normalizeKeyname(keyName)) ? (_.indexOf(this.pressed, keyName) > -1) : false;
}
});
root.Keybinder = keybindingInstance = new Keybinder();
})(this, Backbone, _, jQuery);