Peanut Butter

For testing mousetrap

When the row is highlighted press the key(s). If you can't get anything to happen for a certain test press the f key to mark it as a failure

This test is to test the default values if you don't specify an event type. Basically it decides if it should default to keydown or keyup

keys

keypress

keydown

keyup

result

Peanut Butter

For testing mousetrap

When the row is highlighted press the key(s). If you can't get anything to happen for a certain test press the f key to mark it as a failure

keys

keypress

keydown

keyup

result

g||h.hasOwnProperty(g)&&(p[h[g]]=g)}e=p[d]?"keydown":"keypress"}"keypress"==e&&f.length&&(e="keydown");return{key:c,modifiers:f,action:e}}function F(a,b,d,c,e){q[a+":"+d]=b;a=a.replace(/\s+/g," ");var f=a.split(" ");1":".","?":"/","|":"\\"},G={option:"alt",command:"meta","return":"enter",escape:"esc",mod:/Mac|iPod|iPhone|iPad/.test(navigator.platform)?"meta":"ctrl"},p,l={},q={},n={},D,z=!1,I=!1,u=!1;for(f=1;20>f;++f)h[111+f]="f"+f;for(f=0;9>=f;++f)h[f+96]=f;s(r,"keypress",y);s(r,"keydown",y);s(r,"keyup",y);var m={bind:function(a,b,d){a=a instanceof Array?a:[a];for(var c=0;c 11 | */ 12 | PeanutButter = (function() { 13 | var tests = [], 14 | test_data = [], 15 | use_default = [], 16 | table_body = $("tbody"), 17 | _active_test, 18 | _next_test_timeout, 19 | _presses = 0; 20 | 21 | function _addToTable(test, test_data, i) { 22 | var html = '' + 23 | '' + test + ''; 24 | 25 | $.each(['keypress', 'keydown', 'keyup'], function(i, event_name) { 26 | html += ''; 27 | if ($.inArray(event_name, test_data) !== -1) { 28 | html += '-'; 29 | } else { 30 | html += 'n/a'; 31 | } 32 | html += ''; 33 | }); 34 | 35 | html += '' + 36 | ''; 37 | 38 | table_body.append(html); 39 | } 40 | 41 | function _pass(event_type, test_number) { 42 | $("." + event_type, $("#test_" + test_number)).html('✓'); 43 | } 44 | 45 | function _handleKeyEvent(e) { 46 | clearTimeout(_next_test_timeout); 47 | if (e.preventDefault) { 48 | e.preventDefault(); 49 | } else { 50 | e.returnValue = false; 51 | } 52 | _pass(e.type, _active_test); 53 | _next_test_timeout = setTimeout(_prepareNextTest, 500); 54 | } 55 | 56 | function _prepareNextTest() { 57 | var success = true, 58 | test_row = $("#test_" + _active_test), 59 | class_name; 60 | 61 | $("td", test_row).each(function(i, td) { 62 | if (i > 0 && $(td).html() == '-') { 63 | success = false; 64 | } 65 | }); 66 | 67 | class_name = success ? 'success' : 'failure'; 68 | $(".result", test_row).html('•'); 69 | 70 | _prepareTest(_active_test + 1); 71 | } 72 | 73 | function _resetMousetrap() { 74 | Mousetrap.reset(); 75 | Mousetrap.bind('f', _prepareNextTest); 76 | } 77 | 78 | function _done() {} 79 | 80 | function _bindEventsForTest(i) { 81 | if (use_default[i]) { 82 | return Mousetrap.bind(tests[i], _handleKeyEvent); 83 | } 84 | 85 | $.each(test_data[i], function(j, event_name) { 86 | Mousetrap.bind(tests[i], _handleKeyEvent, event_name); 87 | }); 88 | } 89 | 90 | function _prepareTest(i) { 91 | $("tr").removeClass('ready'); 92 | 93 | if (i > tests.length - 1) { 94 | return _done(); 95 | } 96 | _active_test = i; 97 | _resetMousetrap(); 98 | 99 | _bindEventsForTest(i); 100 | 101 | var tr = $("#test_" + i), 102 | window_height = $(window).height(); 103 | 104 | tr.addClass('ready'); 105 | 106 | $(document).scrollTop(tr.position().top - (window_height - tr.height()) / 2); 107 | 108 | _presses = 0; 109 | } 110 | 111 | return { 112 | addTest: function(combo, events, use_default_event) { 113 | tests.push(combo); 114 | test_data.push(events); 115 | use_default.push(use_default_event); 116 | }, 117 | 118 | spread: function() { 119 | $.each(tests, function(i, test) { 120 | _addToTable(test, test_data[i], i); 121 | }); 122 | 123 | _prepareTest(0); 124 | } 125 | }; 126 | }) (); 127 | -------------------------------------------------------------------------------- /mousetrap.js: -------------------------------------------------------------------------------- 1 | /*global define:false */ 2 | /** 3 | * Copyright 2013 Craig Campbell 4 | * 5 | * Licensed under the Apache License, Version 2.0 (the "License"); 6 | * you may not use this file except in compliance with the License. 7 | * You may obtain a copy of the License at 8 | * 9 | * http://www.apache.org/licenses/LICENSE-2.0 10 | * 11 | * Unless required by applicable law or agreed to in writing, software 12 | * distributed under the License is distributed on an "AS IS" BASIS, 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 | * See the License for the specific language governing permissions and 15 | * limitations under the License. 16 | * 17 | * Mousetrap is a simple keyboard shortcut library for Javascript with 18 | * no external dependencies 19 | * 20 | * @version 1.4.6 21 | * @url craig.is/killing/mice 22 | */ 23 | (function(window, document, undefined) { 24 | 25 | /** 26 | * mapping of special keycodes to their corresponding keys 27 | * 28 | * everything in this dictionary cannot use keypress events 29 | * so it has to be here to map to the correct keycodes for 30 | * keyup/keydown events 31 | * 32 | * @type {Object} 33 | */ 34 | var _MAP = { 35 | 8: 'backspace', 36 | 9: 'tab', 37 | 13: 'enter', 38 | 16: 'shift', 39 | 17: 'ctrl', 40 | 18: 'alt', 41 | 20: 'capslock', 42 | 27: 'esc', 43 | 32: 'space', 44 | 33: 'pageup', 45 | 34: 'pagedown', 46 | 35: 'end', 47 | 36: 'home', 48 | 37: 'left', 49 | 38: 'up', 50 | 39: 'right', 51 | 40: 'down', 52 | 45: 'ins', 53 | 46: 'del', 54 | 91: 'meta', 55 | 93: 'meta', 56 | 224: 'meta' 57 | }, 58 | 59 | /** 60 | * mapping for special characters so they can support 61 | * 62 | * this dictionary is only used incase you want to bind a 63 | * keyup or keydown event to one of these keys 64 | * 65 | * @type {Object} 66 | */ 67 | _KEYCODE_MAP = { 68 | 106: '*', 69 | 107: '+', 70 | 109: '-', 71 | 110: '.', 72 | 111 : '/', 73 | 186: ';', 74 | 187: '=', 75 | 188: ',', 76 | 189: '-', 77 | 190: '.', 78 | 191: '/', 79 | 192: '`', 80 | 219: '[', 81 | 220: '\\', 82 | 221: ']', 83 | 222: '\'' 84 | }, 85 | 86 | /** 87 | * this is a mapping of keys that require shift on a US keypad 88 | * back to the non shift equivelents 89 | * 90 | * this is so you can use keyup events with these keys 91 | * 92 | * note that this will only work reliably on US keyboards 93 | * 94 | * @type {Object} 95 | */ 96 | _SHIFT_MAP = { 97 | '~': '`', 98 | '!': '1', 99 | '@': '2', 100 | '#': '3', 101 | '$': '4', 102 | '%': '5', 103 | '^': '6', 104 | '&': '7', 105 | '*': '8', 106 | '(': '9', 107 | ')': '0', 108 | '_': '-', 109 | '+': '=', 110 | ':': ';', 111 | '\"': '\'', 112 | '<': ',', 113 | '>': '.', 114 | '?': '/', 115 | '|': '\\' 116 | }, 117 | 118 | /** 119 | * this is a list of special strings you can use to map 120 | * to modifier keys when you specify your keyboard shortcuts 121 | * 122 | * @type {Object} 123 | */ 124 | _SPECIAL_ALIASES = { 125 | 'option': 'alt', 126 | 'command': 'meta', 127 | 'return': 'enter', 128 | 'escape': 'esc', 129 | 'mod': /Mac|iPod|iPhone|iPad/.test(navigator.platform) ? 'meta' : 'ctrl' 130 | }, 131 | 132 | /** 133 | * variable to store the flipped version of _MAP from above 134 | * needed to check if we should use keypress or not when no action 135 | * is specified 136 | * 137 | * @type {Object|undefined} 138 | */ 139 | _REVERSE_MAP, 140 | 141 | /** 142 | * a list of all the callbacks setup via Mousetrap.bind() 143 | * 144 | * @type {Object} 145 | */ 146 | _callbacks = {}, 147 | 148 | /** 149 | * direct map of string combinations to callbacks used for trigger() 150 | * 151 | * @type {Object} 152 | */ 153 | _directMap = {}, 154 | 155 | /** 156 | * keeps track of what level each sequence is at since multiple 157 | * sequences can start out with the same sequence 158 | * 159 | * @type {Object} 160 | */ 161 | _sequenceLevels = {}, 162 | 163 | /** 164 | * variable to store the setTimeout call 165 | * 166 | * @type {null|number} 167 | */ 168 | _resetTimer, 169 | 170 | /** 171 | * temporary state where we will ignore the next keyup 172 | * 173 | * @type {boolean|string} 174 | */ 175 | _ignoreNextKeyup = false, 176 | 177 | /** 178 | * temporary state where we will ignore the next keypress 179 | * 180 | * @type {boolean} 181 | */ 182 | _ignoreNextKeypress = false, 183 | 184 | /** 185 | * are we currently inside of a sequence? 186 | * type of action ("keyup" or "keydown" or "keypress") or false 187 | * 188 | * @type {boolean|string} 189 | */ 190 | _nextExpectedAction = false; 191 | 192 | /** 193 | * loop through the f keys, f1 to f19 and add them to the map 194 | * programatically 195 | */ 196 | for (var i = 1; i < 20; ++i) { 197 | _MAP[111 + i] = 'f' + i; 198 | } 199 | 200 | /** 201 | * loop through to map numbers on the numeric keypad 202 | */ 203 | for (i = 0; i <= 9; ++i) { 204 | _MAP[i + 96] = i; 205 | } 206 | 207 | /** 208 | * cross browser add event method 209 | * 210 | * @param {Element|HTMLDocument} object 211 | * @param {string} type 212 | * @param {Function} callback 213 | * @returns void 214 | */ 215 | function _addEvent(object, type, callback) { 216 | if (object.addEventListener) { 217 | object.addEventListener(type, callback, false); 218 | return; 219 | } 220 | 221 | object.attachEvent('on' + type, callback); 222 | } 223 | 224 | /** 225 | * takes the event and returns the key character 226 | * 227 | * @param {Event} e 228 | * @return {string} 229 | */ 230 | function _characterFromEvent(e) { 231 | 232 | // for keypress events we should return the character as is 233 | if (e.type == 'keypress') { 234 | var character = String.fromCharCode(e.which); 235 | 236 | // if the shift key is not pressed then it is safe to assume 237 | // that we want the character to be lowercase. this means if 238 | // you accidentally have caps lock on then your key bindings 239 | // will continue to work 240 | // 241 | // the only side effect that might not be desired is if you 242 | // bind something like 'A' cause you want to trigger an 243 | // event when capital A is pressed caps lock will no longer 244 | // trigger the event. shift+a will though. 245 | if (!e.shiftKey) { 246 | character = character.toLowerCase(); 247 | } 248 | 249 | return character; 250 | } 251 | 252 | // for non keypress events the special maps are needed 253 | if (_MAP[e.which]) { 254 | return _MAP[e.which]; 255 | } 256 | 257 | if (_KEYCODE_MAP[e.which]) { 258 | return _KEYCODE_MAP[e.which]; 259 | } 260 | 261 | // if it is not in the special map 262 | 263 | // with keydown and keyup events the character seems to always 264 | // come in as an uppercase character whether you are pressing shift 265 | // or not. we should make sure it is always lowercase for comparisons 266 | return String.fromCharCode(e.which).toLowerCase(); 267 | } 268 | 269 | /** 270 | * checks if two arrays are equal 271 | * 272 | * @param {Array} modifiers1 273 | * @param {Array} modifiers2 274 | * @returns {boolean} 275 | */ 276 | function _modifiersMatch(modifiers1, modifiers2) { 277 | return modifiers1.sort().join(',') === modifiers2.sort().join(','); 278 | } 279 | 280 | /** 281 | * resets all sequence counters except for the ones passed in 282 | * 283 | * @param {Object} doNotReset 284 | * @returns void 285 | */ 286 | function _resetSequences(doNotReset) { 287 | doNotReset = doNotReset || {}; 288 | 289 | var activeSequences = false, 290 | key; 291 | 292 | for (key in _sequenceLevels) { 293 | if (doNotReset[key]) { 294 | activeSequences = true; 295 | continue; 296 | } 297 | _sequenceLevels[key] = 0; 298 | } 299 | 300 | if (!activeSequences) { 301 | _nextExpectedAction = false; 302 | } 303 | } 304 | 305 | /** 306 | * finds all callbacks that match based on the keycode, modifiers, 307 | * and action 308 | * 309 | * @param {string} character 310 | * @param {Array} modifiers 311 | * @param {Event|Object} e 312 | * @param {string=} sequenceName - name of the sequence we are looking for 313 | * @param {string=} combination 314 | * @param {number=} level 315 | * @returns {Array} 316 | */ 317 | function _getMatches(character, modifiers, e, sequenceName, combination, level) { 318 | var i, 319 | callback, 320 | matches = [], 321 | action = e.type; 322 | 323 | // if there are no events related to this keycode 324 | if (!_callbacks[character]) { 325 | return []; 326 | } 327 | 328 | // if a modifier key is coming up on its own we should allow it 329 | if (action == 'keyup' && _isModifier(character)) { 330 | modifiers = [character]; 331 | } 332 | 333 | // loop through all callbacks for the key that was pressed 334 | // and see if any of them match 335 | for (i = 0; i < _callbacks[character].length; ++i) { 336 | callback = _callbacks[character][i]; 337 | 338 | // if a sequence name is not specified, but this is a sequence at 339 | // the wrong level then move onto the next match 340 | if (!sequenceName && callback.seq && _sequenceLevels[callback.seq] != callback.level) { 341 | continue; 342 | } 343 | 344 | // if the action we are looking for doesn't match the action we got 345 | // then we should keep going 346 | if (action != callback.action) { 347 | continue; 348 | } 349 | 350 | // if this is a keypress event and the meta key and control key 351 | // are not pressed that means that we need to only look at the 352 | // character, otherwise check the modifiers as well 353 | // 354 | // chrome will not fire a keypress if meta or control is down 355 | // safari will fire a keypress if meta or meta+shift is down 356 | // firefox will fire a keypress if meta or control is down 357 | if ((action == 'keypress' && !e.metaKey && !e.ctrlKey) || _modifiersMatch(modifiers, callback.modifiers)) { 358 | 359 | // when you bind a combination or sequence a second time it 360 | // should overwrite the first one. if a sequenceName or 361 | // combination is specified in this call it does just that 362 | // 363 | // @todo make deleting its own method? 364 | var deleteCombo = !sequenceName && callback.combo == combination; 365 | var deleteSequence = sequenceName && callback.seq == sequenceName && callback.level == level; 366 | if (deleteCombo || deleteSequence) { 367 | _callbacks[character].splice(i, 1); 368 | } 369 | 370 | matches.push(callback); 371 | } 372 | } 373 | 374 | return matches; 375 | } 376 | 377 | /** 378 | * takes a key event and figures out what the modifiers are 379 | * 380 | * @param {Event} e 381 | * @returns {Array} 382 | */ 383 | function _eventModifiers(e) { 384 | var modifiers = []; 385 | 386 | if (e.shiftKey) { 387 | modifiers.push('shift'); 388 | } 389 | 390 | if (e.altKey) { 391 | modifiers.push('alt'); 392 | } 393 | 394 | if (e.ctrlKey) { 395 | modifiers.push('ctrl'); 396 | } 397 | 398 | if (e.metaKey) { 399 | modifiers.push('meta'); 400 | } 401 | 402 | return modifiers; 403 | } 404 | 405 | /** 406 | * prevents default for this event 407 | * 408 | * @param {Event} e 409 | * @returns void 410 | */ 411 | function _preventDefault(e) { 412 | if (e.preventDefault) { 413 | e.preventDefault(); 414 | return; 415 | } 416 | 417 | e.returnValue = false; 418 | } 419 | 420 | /** 421 | * stops propogation for this event 422 | * 423 | * @param {Event} e 424 | * @returns void 425 | */ 426 | function _stopPropagation(e) { 427 | if (e.stopPropagation) { 428 | e.stopPropagation(); 429 | return; 430 | } 431 | 432 | e.cancelBubble = true; 433 | } 434 | 435 | /** 436 | * actually calls the callback function 437 | * 438 | * if your callback function returns false this will use the jquery 439 | * convention - prevent default and stop propogation on the event 440 | * 441 | * @param {Function} callback 442 | * @param {Event} e 443 | * @returns void 444 | */ 445 | function _fireCallback(callback, e, combo, sequence) { 446 | 447 | // if this event should not happen stop here 448 | if (Mousetrap.stopCallback(e, e.target || e.srcElement, combo, sequence)) { 449 | return; 450 | } 451 | 452 | if (callback(e, combo) === false) { 453 | _preventDefault(e); 454 | _stopPropagation(e); 455 | } 456 | } 457 | 458 | /** 459 | * handles a character key event 460 | * 461 | * @param {string} character 462 | * @param {Array} modifiers 463 | * @param {Event} e 464 | * @returns void 465 | */ 466 | function _handleKey(character, modifiers, e) { 467 | var callbacks = _getMatches(character, modifiers, e), 468 | i, 469 | doNotReset = {}, 470 | maxLevel = 0, 471 | processedSequenceCallback = false; 472 | 473 | // Calculate the maxLevel for sequences so we can only execute the longest callback sequence 474 | for (i = 0; i < callbacks.length; ++i) { 475 | if (callbacks[i].seq) { 476 | maxLevel = Math.max(maxLevel, callbacks[i].level); 477 | } 478 | } 479 | 480 | // loop through matching callbacks for this key event 481 | for (i = 0; i < callbacks.length; ++i) { 482 | 483 | // fire for all sequence callbacks 484 | // this is because if for example you have multiple sequences 485 | // bound such as "g i" and "g t" they both need to fire the 486 | // callback for matching g cause otherwise you can only ever 487 | // match the first one 488 | if (callbacks[i].seq) { 489 | 490 | // only fire callbacks for the maxLevel to prevent 491 | // subsequences from also firing 492 | // 493 | // for example 'a option b' should not cause 'option b' to fire 494 | // even though 'option b' is part of the other sequence 495 | // 496 | // any sequences that do not match here will be discarded 497 | // below by the _resetSequences call 498 | if (callbacks[i].level != maxLevel) { 499 | continue; 500 | } 501 | 502 | processedSequenceCallback = true; 503 | 504 | // keep a list of which sequences were matches for later 505 | doNotReset[callbacks[i].seq] = 1; 506 | _fireCallback(callbacks[i].callback, e, callbacks[i].combo, callbacks[i].seq); 507 | continue; 508 | } 509 | 510 | // if there were no sequence matches but we are still here 511 | // that means this is a regular match so we should fire that 512 | if (!processedSequenceCallback) { 513 | _fireCallback(callbacks[i].callback, e, callbacks[i].combo); 514 | } 515 | } 516 | 517 | // if the key you pressed matches the type of sequence without 518 | // being a modifier (ie "keyup" or "keypress") then we should 519 | // reset all sequences that were not matched by this event 520 | // 521 | // this is so, for example, if you have the sequence "h a t" and you 522 | // type "h e a r t" it does not match. in this case the "e" will 523 | // cause the sequence to reset 524 | // 525 | // modifier keys are ignored because you can have a sequence 526 | // that contains modifiers such as "enter ctrl+space" and in most 527 | // cases the modifier key will be pressed before the next key 528 | // 529 | // also if you have a sequence such as "ctrl+b a" then pressing the 530 | // "b" key will trigger a "keypress" and a "keydown" 531 | // 532 | // the "keydown" is expected when there is a modifier, but the 533 | // "keypress" ends up matching the _nextExpectedAction since it occurs 534 | // after and that causes the sequence to reset 535 | // 536 | // we ignore keypresses in a sequence that directly follow a keydown 537 | // for the same character 538 | var ignoreThisKeypress = e.type == 'keypress' && _ignoreNextKeypress; 539 | if (e.type == _nextExpectedAction && !_isModifier(character) && !ignoreThisKeypress) { 540 | _resetSequences(doNotReset); 541 | } 542 | 543 | _ignoreNextKeypress = processedSequenceCallback && e.type == 'keydown'; 544 | } 545 | 546 | /** 547 | * handles a keydown event 548 | * 549 | * @param {Event} e 550 | * @returns void 551 | */ 552 | function _handleKeyEvent(e) { 553 | 554 | // normalize e.which for key events 555 | // @see http://stackoverflow.com/questions/4285627/javascript-keycode-vs-charcode-utter-confusion 556 | if (typeof e.which !== 'number') { 557 | e.which = e.keyCode; 558 | } 559 | 560 | var character = _characterFromEvent(e); 561 | 562 | // no character found then stop 563 | if (!character) { 564 | return; 565 | } 566 | 567 | // need to use === for the character check because the character can be 0 568 | if (e.type == 'keyup' && _ignoreNextKeyup === character) { 569 | _ignoreNextKeyup = false; 570 | return; 571 | } 572 | 573 | Mousetrap.handleKey(character, _eventModifiers(e), e); 574 | } 575 | 576 | /** 577 | * determines if the keycode specified is a modifier key or not 578 | * 579 | * @param {string} key 580 | * @returns {boolean} 581 | */ 582 | function _isModifier(key) { 583 | return key == 'shift' || key == 'ctrl' || key == 'alt' || key == 'meta'; 584 | } 585 | 586 | /** 587 | * called to set a 1 second timeout on the specified sequence 588 | * 589 | * this is so after each key press in the sequence you have 1 second 590 | * to press the next key before you have to start over 591 | * 592 | * @returns void 593 | */ 594 | function _resetSequenceTimer() { 595 | clearTimeout(_resetTimer); 596 | _resetTimer = setTimeout(_resetSequences, 1000); 597 | } 598 | 599 | /** 600 | * reverses the map lookup so that we can look for specific keys 601 | * to see what can and can't use keypress 602 | * 603 | * @return {Object} 604 | */ 605 | function _getReverseMap() { 606 | if (!_REVERSE_MAP) { 607 | _REVERSE_MAP = {}; 608 | for (var key in _MAP) { 609 | 610 | // pull out the numeric keypad from here cause keypress should 611 | // be able to detect the keys from the character 612 | if (key > 95 && key < 112) { 613 | continue; 614 | } 615 | 616 | if (_MAP.hasOwnProperty(key)) { 617 | _REVERSE_MAP[_MAP[key]] = key; 618 | } 619 | } 620 | } 621 | return _REVERSE_MAP; 622 | } 623 | 624 | /** 625 | * picks the best action based on the key combination 626 | * 627 | * @param {string} key - character for key 628 | * @param {Array} modifiers 629 | * @param {string=} action passed in 630 | */ 631 | function _pickBestAction(key, modifiers, action) { 632 | 633 | // if no action was picked in we should try to pick the one 634 | // that we think would work best for this key 635 | if (!action) { 636 | action = _getReverseMap()[key] ? 'keydown' : 'keypress'; 637 | } 638 | 639 | // modifier keys don't work as expected with keypress, 640 | // switch to keydown 641 | if (action == 'keypress' && modifiers.length) { 642 | action = 'keydown'; 643 | } 644 | 645 | return action; 646 | } 647 | 648 | /** 649 | * binds a key sequence to an event 650 | * 651 | * @param {string} combo - combo specified in bind call 652 | * @param {Array} keys 653 | * @param {Function} callback 654 | * @param {string=} action 655 | * @returns void 656 | */ 657 | function _bindSequence(combo, keys, callback, action) { 658 | 659 | // start off by adding a sequence level record for this combination 660 | // and setting the level to 0 661 | _sequenceLevels[combo] = 0; 662 | 663 | /** 664 | * callback to increase the sequence level for this sequence and reset 665 | * all other sequences that were active 666 | * 667 | * @param {string} nextAction 668 | * @returns {Function} 669 | */ 670 | function _increaseSequence(nextAction) { 671 | return function() { 672 | _nextExpectedAction = nextAction; 673 | ++_sequenceLevels[combo]; 674 | _resetSequenceTimer(); 675 | }; 676 | } 677 | 678 | /** 679 | * wraps the specified callback inside of another function in order 680 | * to reset all sequence counters as soon as this sequence is done 681 | * 682 | * @param {Event} e 683 | * @returns void 684 | */ 685 | function _callbackAndReset(e) { 686 | _fireCallback(callback, e, combo); 687 | 688 | // we should ignore the next key up if the action is key down 689 | // or keypress. this is so if you finish a sequence and 690 | // release the key the final key will not trigger a keyup 691 | if (action !== 'keyup') { 692 | _ignoreNextKeyup = _characterFromEvent(e); 693 | } 694 | 695 | // weird race condition if a sequence ends with the key 696 | // another sequence begins with 697 | setTimeout(_resetSequences, 10); 698 | } 699 | 700 | // loop through keys one at a time and bind the appropriate callback 701 | // function. for any key leading up to the final one it should 702 | // increase the sequence. after the final, it should reset all sequences 703 | // 704 | // if an action is specified in the original bind call then that will 705 | // be used throughout. otherwise we will pass the action that the 706 | // next key in the sequence should match. this allows a sequence 707 | // to mix and match keypress and keydown events depending on which 708 | // ones are better suited to the key provided 709 | for (var i = 0; i < keys.length; ++i) { 710 | var isFinal = i + 1 === keys.length; 711 | var wrappedCallback = isFinal ? 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