129 lines
5.4 KiB
JavaScript
129 lines
5.4 KiB
JavaScript
// vim: et:ts=4:sw=4:sts=4:ft=js
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/***
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Ox.Keyboard
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***/
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(function() {
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var buffer = '',
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// the dot notation ('0.numpad') makes the keyboard event ('key_0.numpad')
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// namespaced, so that binding to 'key_0' will catch 'key_0.numpad' too
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keyNames = {
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0: 'section', 8: 'backspace', 9: 'tab', 12: 'clear', 13: 'enter',
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16: 'shift', 17: 'control', 18: 'alt', 20: 'capslock', 27: 'escape',
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32: 'space', 33: 'pageup', 34: 'pagedown', 35: 'end', 36: 'home',
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37: 'left', 38: 'up', 39: 'right', 40: 'down',
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45: 'insert', 46: 'delete', 47: 'help',
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48: '0', 49: '1', 50: '2', 51: '3', 52: '4',
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53: '5', 54: '6', 55: '7', 56: '8', 57: '9',
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65: 'a', 66: 'b', 67: 'c', 68: 'd', 69: 'e',
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70: 'f', 71: 'g', 72: 'h', 73: 'i', 74: 'j',
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75: 'k', 76: 'l', 77: 'm', 78: 'n', 79: 'o',
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80: 'p', 81: 'q', 82: 'r', 83: 's', 84: 't',
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85: 'u', 86: 'v', 87: 'w', 88: 'x', 89: 'y', 90: 'z',
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// fixme: this is usually 91: window.left, 92: window.right, 93: select
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91: 'meta.left', 92: 'meta.right', 93: 'meta.right',
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96: '0.numpad', 97: '1.numpad', 98: '2.numpad', 99: '3.numpad',
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100: '4.numpad', 101: '5.numpad', 102: '6.numpad', 103: '7.numpad',
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104: '8.numpad', 105: '9.numpad', 106: 'asterisk.numpad', 107: 'plus.numpad',
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109: 'minus.numpad', 108: 'enter.numpad', 110: 'dot.numpad', 111: 'slash.numpad',
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112: 'f1', 113: 'f2', 114: 'f3', 115: 'f4', 116: 'f5',
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117: 'f6', 118: 'f7', 119: 'f8', 120: 'f9', 121: 'f10',
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122: 'f11', 123: 'f12', 124: 'f13', 125: 'f14', 126: 'f15', 127: 'f16',
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144: 'numlock', 145: 'scrolllock',
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186: 'semicolon', 187: 'equal', 188: 'comma', 189: 'minus',
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190: 'dot', 191: 'slash', 192: 'backtick', 219: 'openbracket',
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220: 'backslash', 221: 'closebracket', 222: 'quote', 224: 'meta'
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// see dojo, for ex.
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},
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// meta comes last so that we can differentiate between
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// alt_control_shift_meta.left and alt_control_shift_meta.right
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modifierNames = {
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altKey: 'alt', // Mac: option
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ctrlKey: 'control',
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shiftKey: 'shift',
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metaKey: 'meta', // Mac: command
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},
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resetTimeout, triggerTimeout;
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/*
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Ox.UI.ready(function() {
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// fixme: how to do this better?
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// in firefox on mac, keypress doesn't fire for up/down
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// if the cursor is at the start/end of an input element
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// on linux, it doesn't seem to fire if the input element has focus
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if ($.browser.mozilla) {
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Ox.UI.$document.keypress(keypress);
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Ox.UI.$document.keydown(function(event) {
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var $element = $('input:focus');
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if ($element.length) {
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if (
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(
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keyNames[event.keyCode] == 'up' &&
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$element[0].selectionStart + $element[0].selectionEnd == 0
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) || (
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keyNames[event.keyCode] == 'down' &&
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$element[0].selectionStart == $element.val().length &&
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$element[0].selectionEnd == $element.val().length
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)
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) {
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keypress(event);
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}
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}
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});
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} else {
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Ox.UI.$document.keydown(keypress);
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}
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});
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*/
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Ox.UI.ready(function() {
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Ox.UI.$document.keydown(keydown)
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});
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function keydown(event) {
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var focused = Ox.Focus.focused(),
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key,
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keyName = keyNames[event.keyCode] || '',
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keyBasename = keyName.split('.')[0],
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keys = keyName ? [keyName] : [];
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Ox.forEach(modifierNames, function(v, k) {
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// avoid pushing modifier twice
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if (event[k] && keyBasename != v) {
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keys.splice(-1, 0, v);
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}
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});
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key = keys.join('_');
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if (/^(shift_)?[a-z]$|^\d(\.numpad)?$|space/.test(key)) {
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// don't register leading spaces or trailing double spaces
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if (!(keyName == 'space' && (buffer == '' || / $/.test(buffer)))) {
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buffer += keyName == 'space' ? ' ' : keyBasename;
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Ox.print('buffer', buffer)
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// clear the trigger timeout only if the key went into the buffer
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clearTimeout(triggerTimeout);
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triggerTimeout = setTimeout(function() {
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Ox.print('buffer', buffer)
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focused !== null && Ox.UI.elements[focused].triggerEvent('keys', {
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keys: buffer
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});
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}, 250);
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}
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}
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// clear the reset timeout even if the key didn't go into the buffer
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clearTimeout(resetTimeout);
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resetTimeout = setTimeout(function() {
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buffer = '';
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}, 1000);
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if (focused !== null) {
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Ox.UI.elements[focused].triggerEvent('key_' + key);
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// prevent Chrome from going back in history, or scrolling
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if (
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['backspace', 'down', 'left', 'right', 'space', 'up'].indexOf(key) > -1 &&
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!Ox.UI.elements[focused].hasClass('OxInput')
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) {
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return false;
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}
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}
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}
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})();
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