mirror of
https://github.com/wahyd4/cdnjs.git
synced 2026-08-13 23:06:20 +10:00
Lachlan Collins
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// keymage.js - Javascript keyboard event handling
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// http://github.com/piranha/keymage
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//
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// (c) 2012 Alexander Solovyov
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// under terms of ISC License
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(function(define, undefined) {
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define(function() {
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// Defining all keys
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var MODPROPS = ['shiftKey', 'ctrlKey', 'altKey', 'metaKey'];
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var MODS = {
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'shift': 'shift',
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'ctrl': 'ctrl', 'control': 'ctrl',
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'alt': 'alt', 'option': 'alt',
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'win': 'meta', 'cmd': 'meta', 'super': 'meta',
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'meta': 'meta',
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// default modifier for os x is cmd and for others is ctrl
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'defmod': ~navigator.userAgent.indexOf('Mac OS X') ?
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'meta' : 'ctrl'
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};
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var MODORDER = ['shift', 'ctrl', 'alt', 'meta'];
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var MODNUMS = [16, 17, 18, 91];
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var KEYS = {
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'backspace': 8,
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'tab': 9,
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'enter': 13, 'return': 13,
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'pause': 19,
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'caps': 20, 'capslock': 20,
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'escape': 27, 'esc': 27,
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'space': 32,
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'pgup': 33, 'pageup': 33,
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'pgdown': 34, 'pagedown': 34,
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'end': 35,
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'home': 36,
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'ins': 45, 'insert': 45,
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'del': 46, 'delete': 46,
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'left': 37,
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'up': 38,
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'right': 39,
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'down': 40,
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'*': 106,
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'+': 107, 'plus': 107,
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'-': 109, 'minus': 109,
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';': 186,
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'=': 187,
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',': 188,
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'.': 190,
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'/': 191,
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'`': 192,
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'[': 219,
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'\\': 220,
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']': 221,
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"'": 222
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};
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var i;
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// numpad
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for (i = 0; i < 10; i++) {
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KEYS['num-' + i] = i + 95;
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}
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// top row 0-9
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for (i = 0; i < 10; i++) {
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KEYS[i.toString()] = i + 48;
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}
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// f1-f24
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for (i = 1; i < 25; i++) {
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KEYS['f' + i] = i + 111;
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}
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// alphabet
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for (i = 65; i < 91; i++) {
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KEYS[String.fromCharCode(i).toLowerCase()] = i;
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}
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// Reverse key codes
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var KEYREV = {};
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for (var k in KEYS) {
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var val = KEYS[k];
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if (!KEYREV[val] || KEYREV[val].length < k.length) {
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KEYREV[val] = k;
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}
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}
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// -----------------------
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// Actual work is done here
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var currentScope = '';
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var allChains = {};
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function parseKeyString(keystring) {
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var bits = keystring.split('-');
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var button = bits[bits.length - 1];
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var key = {code: KEYS[button]};
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if (!key.code) {
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throw 'Unknown key "' + button + '" in keystring "' +
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keystring + '"';
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}
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var mod;
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for (var i = 0; i < bits.length - 1; i++) {
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button = bits[i];
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mod = MODS[button];
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if (!mod) {
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throw 'Unknown modifier "' + button + '" in keystring "' +
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keystring + '"';
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}
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key[mod] = true;
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}
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return key;
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}
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function stringifyKey(key) {
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var s = '';
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for (var i = 0; i < MODORDER.length; i++) {
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if (key[MODORDER[i]]) {
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s += MODORDER[i] + '-';
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}
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}
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s += KEYREV[key.code];
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return s;
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}
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function normalizeKeyChain(keychainString) {
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var keychain = [];
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var keys = keychainString.split(' ');
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for (var i = 0; i < keys.length; i++) {
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var key = parseKeyString(keys[i]);
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key = stringifyKey(key);
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keychain.push(key);
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}
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keychain.original = keychainString;
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return keychain;
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}
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function eventKeyString(e) {
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var key = {code: e.keyCode};
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for (var i = 0; i < MODPROPS.length; i++) {
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var mod = MODPROPS[i];
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if (e[mod]) {
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key[mod.slice(0, mod.length - 3)] = true;
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}
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}
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return stringifyKey(key);
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}
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function getNestedChains(chains, scope) {
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for (var i = 0; i < scope.length; i++) {
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var bit = scope[i];
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if (bit) {
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chains = chains[bit];
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}
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if (!chains) {
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break;
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}
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}
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return chains;
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}
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var sequence = [];
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function dispatch(e) {
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// Skip all modifiers
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if (~MODNUMS.indexOf(e.keyCode)) {
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return;
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}
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var seq = sequence.slice();
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seq.push(eventKeyString(e));
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var scope = currentScope.split('.');
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var matched, chains, key;
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for (var i = scope.length; i >= 0; i--) {
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chains = getNestedChains(allChains, scope.slice(0, i));
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if (!chains) {
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continue;
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}
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matched = true;
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for (var j = 0; j < seq.length; j++) {
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key = seq[j];
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if (!chains[key]) {
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matched = false;
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break;
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}
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chains = chains[key];
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}
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if (matched) {
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break;
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}
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}
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var definitionScope = scope.slice(0, i).join('.');
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var preventDefault = chains.preventDefault;
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// partial match, save the sequence
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if (matched && !chains.handlers) {
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sequence = seq;
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if (preventDefault) {
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e.preventDefault();
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}
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return;
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}
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if (matched) {
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for (i = 0; i < chains.handlers.length; i++) {
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var handler = chains.handlers[i];
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var options = handler._keymage;
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var res = handler.call(options.context, e, {
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shortcut: options.original,
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scope: currentScope,
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definitionScope: definitionScope
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});
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if (res === false || preventDefault) {
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e.preventDefault();
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}
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}
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}
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// either matched or not, drop the sequence
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sequence = [];
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}
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function assignKey(scope, keychain, fn) {
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var bits = scope.split('.');
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var chains = allChains;
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bits = bits.concat(keychain);
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for (var i = 0, l = bits.length; i < l; i++) {
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var bit = bits[i];
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if (!bit) continue;
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chains = chains[bit] || (chains[bit] = {});
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if (fn._keymage.preventDefault) {
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chains.preventDefault = true;
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}
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if (i === l - 1) {
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var handlers = chains.handlers || (chains.handlers = []);
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handlers.push(fn);
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}
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}
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}
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// optional arguments: scope, options.
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function keymage(scope, keychain, fn, options) {
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if (keychain === undefined && fn === undefined) {
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return function(keychain, fn) {
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return keymage(scope, keychain, fn);
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};
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}
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if (typeof keychain === 'function') {
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options = fn;
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fn = keychain;
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keychain = scope;
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scope = '';
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}
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var normalized = normalizeKeyChain(keychain);
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fn._keymage = options || {};
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fn._keymage.original = keychain;
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assignKey(scope, normalized, fn);
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}
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keymage.parse = parseKeyString;
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keymage.stringify = stringifyKey;
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keymage.bindings = allChains;
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keymage.setScope = function(scope) {
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currentScope = scope ? scope : '';
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};
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keymage.getScope = function() { return currentScope; };
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keymage.pushScope = function(scope) {
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currentScope = (currentScope ? currentScope + '.' : '') + scope;
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return currentScope;
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};
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keymage.popScope = function(scope) {
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var i;
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if (!scope) {
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i = currentScope.lastIndexOf('.');
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scope = currentScope.slice(i + 1);
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currentScope = currentScope.slice(0, i);
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return scope;
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}
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currentScope = currentScope.replace(
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new RegExp('(^|\\.)' + scope + '(\\.|$).*'), '');
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return scope;
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};
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window.addEventListener('keydown', dispatch, false);
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return keymage;
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});
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})(typeof define !== 'undefined' ? define : function(factory) {
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window.keymage = factory();
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});
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+6
@@ -0,0 +1,6 @@
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// keymage.js - Javascript keyboard event handling
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// http://github.com/piranha/keymage
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//
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// (c) 2012 Alexander Solovyov
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// under terms of ISC License
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(function(a,b){a(function(){function m(a){var b=a.split("-"),d=b[b.length-1],e={code:f[d]};if(!e.code)throw'Unknown key "'+d+'" in keystring "'+a+'"';var g;for(var h=0;h<b.length-1;h++){d=b[h],g=c[d];if(!g)throw'Unknown modifier "'+d+'" in keystring "'+a+'"';e[g]=!0}return e}function n(a){var b="";for(var c=0;c<d.length;c++)a[d[c]]&&(b+=d[c]+"-");return b+=h[a.code],b}function o(a){var b=[],c=a.split(" ");for(var d=0;d<c.length;d++){var e=m(c[d]);e=n(e),b.push(e)}return b.original=a,b}function p(b){var c={code:b.keyCode};for(var d=0;d<a.length;d++){var e=a[d];b[e]&&(c[e.slice(0,e.length-3)]=!0)}return n(c)}function q(a,b){for(var c=0;c<b.length;c++){var d=b[c];d&&(a=a[d]);if(!a)break}return a}function s(a){if(~e.indexOf(a.keyCode))return;var b=r.slice();b.push(p(a));var c=k.split("."),d,f,g;for(var h=c.length;h>=0;h--){f=q(l,c.slice(0,h));if(!f)continue;d=!0;for(var i=0;i<b.length;i++){g=b[i];if(!f[g]){d=!1;break}f=f[g]}if(d)break}var j=c.slice(0,h).join("."),m=f.preventDefault;if(d&&!f.handlers){r=b,m&&a.preventDefault();return}if(d)for(h=0;h<f.handlers.length;h++){var n=f.handlers[h],o=n._keymage,s=n.call(o.context,a,{shortcut:o.original,scope:k,definitionScope:j});(s===!1||m)&&a.preventDefault()}r=[]}function t(a,b,c){var d=a.split("."),e=l;d=d.concat(b);for(var f=0,g=d.length;f<g;f++){var h=d[f];if(!h)continue;e=e[h]||(e[h]={}),c._keymage.preventDefault&&(e.preventDefault=!0);if(f===g-1){var i=e.handlers||(e.handlers=[]);i.push(c)}}}function u(a,c,d,e){if(c===b&&d===b)return function(b,c){return u(a,b,c)};typeof c=="function"&&(e=d,d=c,c=a,a="");var f=o(c);d._keymage=e||{},d._keymage.original=c,t(a,f,d)}var a=["shiftKey","ctrlKey","altKey","metaKey"],c={shift:"shift",ctrl:"ctrl",control:"ctrl",alt:"alt",option:"alt",win:"meta",cmd:"meta","super":"meta",meta:"meta",defmod:~navigator.userAgent.indexOf("Mac OS X")?"meta":"ctrl"},d=["shift","ctrl","alt","meta"],e=[16,17,18,91],f={backspace:8,tab:9,enter:13,"return":13,pause:19,caps:20,capslock:20,escape:27,esc:27,space:32,pgup:33,pageup:33,pgdown:34,pagedown:34,end:35,home:36,ins:45,insert:45,del:46,"delete":46,left:37,up:38,right:39,down:40,"*":106,"+":107,plus:107,"-":109,minus:109,";":186,"=":187,",":188,".":190,"/":191,"`":192,"[":219,"\\":220,"]":221,"'":222},g;for(g=0;g<10;g++)f["num-"+g]=g+95;for(g=0;g<10;g++)f[g.toString()]=g+48;for(g=1;g<25;g++)f["f"+g]=g+111;for(g=65;g<91;g++)f[String.fromCharCode(g).toLowerCase()]=g;var h={};for(var i in f){var j=f[i];if(!h[j]||h[j].length<i.length)h[j]=i}var k="",l={},r=[];return u.parse=m,u.stringify=n,u.bindings=l,u.setScope=function(a){k=a?a:""},u.getScope=function(){return k},u.pushScope=function(a){return k=(k?k+".":"")+a,k},u.popScope=function(a){var b;return a?(k=k.replace(new RegExp("(^|\\.)"+a+"(\\.|$).*"),""),a):(b=k.lastIndexOf("."),a=k.slice(b+1),k=k.slice(0,b),a)},window.addEventListener("keydown",s,!1),u})})(typeof define!="undefined"?define:function(a){window.keymage=a()});
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@@ -0,0 +1,24 @@
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{
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"name": "keymage",
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"filename": "keymage.min.js",
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"version": "1.0.0",
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"description": "Yet Another JS Keybinding library",
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"homepage": "https://github.com/piranha/keymage",
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"keywords": [
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"keymage",
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"key-binding"
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],
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"maintainers": [
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{
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"name": "Alexander Solovyov",
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"email": "alexander@solovyov.net",
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"web": "http://solovyov.net/"
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}
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],
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"repositories": [
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{
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"type": "git",
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"url": "https://github.com/piranha/keymage"
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}
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]
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}
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Reference in New Issue
Block a user