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8 |
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9 |
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10 | 'use strict';
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11 |
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12 | var isff = typeof navigator !== 'undefined' ? navigator.userAgent.toLowerCase().indexOf('firefox') > 0 : false;
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13 |
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14 | function addEvent(object, event, method, useCapture) {
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15 | if (object.addEventListener) {
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16 | object.addEventListener(event, method, useCapture);
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17 | } else if (object.attachEvent) {
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18 | object.attachEvent("on".concat(event), function () {
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19 | method(window.event);
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20 | });
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21 | }
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22 | }
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23 |
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24 |
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25 | function getMods(modifier, key) {
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26 | var mods = key.slice(0, key.length - 1);
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27 |
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28 | for (var i = 0; i < mods.length; i++) {
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29 | mods[i] = modifier[mods[i].toLowerCase()];
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30 | }
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31 |
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32 | return mods;
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33 | }
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34 |
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35 |
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36 | function getKeys(key) {
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37 | if (typeof key !== 'string') key = '';
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38 | key = key.replace(/\s/g, '');
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39 |
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40 | var keys = key.split(',');
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41 |
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42 | var index = keys.lastIndexOf('');
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43 |
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44 | for (; index >= 0;) {
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45 | keys[index - 1] += ',';
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46 | keys.splice(index, 1);
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47 | index = keys.lastIndexOf('');
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48 | }
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49 |
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50 | return keys;
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51 | }
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52 |
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53 |
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54 | function compareArray(a1, a2) {
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55 | var arr1 = a1.length >= a2.length ? a1 : a2;
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56 | var arr2 = a1.length >= a2.length ? a2 : a1;
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57 | var isIndex = true;
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58 |
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59 | for (var i = 0; i < arr1.length; i++) {
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60 | if (arr2.indexOf(arr1[i]) === -1) isIndex = false;
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61 | }
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62 |
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63 | return isIndex;
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64 | }
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65 |
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66 | var _keyMap = {
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67 | backspace: 8,
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68 | tab: 9,
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69 | clear: 12,
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70 | enter: 13,
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71 | return: 13,
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72 | esc: 27,
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73 | escape: 27,
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74 | space: 32,
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75 | left: 37,
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76 | up: 38,
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77 | right: 39,
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78 | down: 40,
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79 | del: 46,
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80 | delete: 46,
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81 | ins: 45,
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82 | insert: 45,
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83 | home: 36,
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84 | end: 35,
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85 | pageup: 33,
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86 | pagedown: 34,
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87 | capslock: 20,
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88 | num_0: 96,
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89 | num_1: 97,
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90 | num_2: 98,
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91 | num_3: 99,
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92 | num_4: 100,
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93 | num_5: 101,
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94 | num_6: 102,
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95 | num_7: 103,
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96 | num_8: 104,
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97 | num_9: 105,
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98 | num_multiply: 106,
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99 | num_add: 107,
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100 | num_enter: 108,
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101 | num_subtract: 109,
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102 | num_decimal: 110,
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103 | num_divide: 111,
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104 | '⇪': 20,
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105 | ',': 188,
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106 | '.': 190,
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107 | '/': 191,
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108 | '`': 192,
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109 | '-': isff ? 173 : 189,
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110 | '=': isff ? 61 : 187,
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111 | ';': isff ? 59 : 186,
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112 | '\'': 222,
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113 | '[': 219,
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114 | ']': 221,
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115 | '\\': 220
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116 | };
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117 |
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118 | var _modifier = {
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119 |
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120 | '⇧': 16,
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121 | shift: 16,
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122 |
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123 | '⌥': 18,
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124 | alt: 18,
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125 | option: 18,
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126 |
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127 | '⌃': 17,
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128 | ctrl: 17,
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129 | control: 17,
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130 |
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131 | '⌘': 91,
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132 | cmd: 91,
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133 | command: 91
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134 | };
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135 | var modifierMap = {
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136 | 16: 'shiftKey',
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137 | 18: 'altKey',
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138 | 17: 'ctrlKey',
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139 | 91: 'metaKey',
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140 | shiftKey: 16,
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141 | ctrlKey: 17,
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142 | altKey: 18,
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143 | metaKey: 91
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144 | };
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145 | var _mods = {
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146 | 16: false,
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147 | 18: false,
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148 | 17: false,
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149 | 91: false
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150 | };
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151 | var _handlers = {};
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152 |
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153 | for (var k = 1; k < 20; k++) {
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154 | _keyMap["f".concat(k)] = 111 + k;
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155 | }
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156 |
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157 | var _downKeys = [];
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158 |
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159 | var winListendFocus = false;
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160 |
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161 | var _scope = 'all';
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162 |
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163 | var elementHasBindEvent = [];
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164 |
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165 |
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166 | var code = function code(x) {
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167 | return _keyMap[x.toLowerCase()] || _modifier[x.toLowerCase()] || x.toUpperCase().charCodeAt(0);
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168 | };
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169 |
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170 |
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171 | function setScope(scope) {
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172 | _scope = scope || 'all';
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173 | }
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174 |
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175 |
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176 | function getScope() {
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177 | return _scope || 'all';
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178 | }
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179 |
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180 |
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181 | function getPressedKeyCodes() {
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182 | return _downKeys.slice(0);
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183 | }
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184 |
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185 |
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186 |
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187 | function filter(event) {
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188 | var target = event.target || event.srcElement;
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189 | var tagName = target.tagName;
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190 | var flag = true;
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191 |
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192 | if (target.isContentEditable || (tagName === 'INPUT' || tagName === 'TEXTAREA' || tagName === 'SELECT') && !target.readOnly) {
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193 | flag = false;
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194 | }
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195 |
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196 | return flag;
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197 | }
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198 |
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199 |
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200 | function isPressed(keyCode) {
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201 | if (typeof keyCode === 'string') {
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202 | keyCode = code(keyCode);
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203 | }
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204 |
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205 | return _downKeys.indexOf(keyCode) !== -1;
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206 | }
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207 |
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208 |
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209 | function deleteScope(scope, newScope) {
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210 | var handlers;
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211 | var i;
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212 |
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213 | if (!scope) scope = getScope();
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214 |
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215 | for (var key in _handlers) {
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216 | if (Object.prototype.hasOwnProperty.call(_handlers, key)) {
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217 | handlers = _handlers[key];
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218 |
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219 | for (i = 0; i < handlers.length;) {
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220 | if (handlers[i].scope === scope) handlers.splice(i, 1);else i++;
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221 | }
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222 | }
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223 | }
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224 |
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225 |
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226 | if (getScope() === scope) setScope(newScope || 'all');
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227 | }
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228 |
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229 |
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230 | function clearModifier(event) {
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231 | var key = event.keyCode || event.which || event.charCode;
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232 |
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233 | var i = _downKeys.indexOf(key);
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234 |
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235 |
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236 | if (i >= 0) {
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237 | _downKeys.splice(i, 1);
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238 | }
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239 |
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240 |
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241 | if (event.key && event.key.toLowerCase() === 'meta') {
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242 | _downKeys.splice(0, _downKeys.length);
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243 | }
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244 |
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245 |
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246 | if (key === 93 || key === 224) key = 91;
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247 |
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248 | if (key in _mods) {
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249 | _mods[key] = false;
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250 |
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251 | for (var k in _modifier) {
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252 | if (_modifier[k] === key) hotkeys[k] = false;
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253 | }
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254 | }
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255 | }
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256 |
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257 | function unbind(keysInfo) {
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258 |
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259 | if (typeof keysInfo === 'undefined') {
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260 | Object.keys(_handlers).forEach(function (key) {
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261 | return delete _handlers[key];
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262 | });
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263 | } else if (Array.isArray(keysInfo)) {
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264 |
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265 | keysInfo.forEach(function (info) {
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266 | if (info.key) eachUnbind(info);
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267 | });
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268 | } else if (typeof keysInfo === 'object') {
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269 |
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270 | if (keysInfo.key) eachUnbind(keysInfo);
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271 | } else if (typeof keysInfo === 'string') {
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272 | for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
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273 | args[_key - 1] = arguments[_key];
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274 | }
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275 |
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276 |
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277 |
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278 | var scope = args[0],
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279 | method = args[1];
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280 |
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281 | if (typeof scope === 'function') {
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282 | method = scope;
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283 | scope = '';
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284 | }
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285 |
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286 | eachUnbind({
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287 | key: keysInfo,
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288 | scope: scope,
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289 | method: method,
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290 | splitKey: '+'
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291 | });
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292 | }
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293 | }
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294 |
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295 |
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296 | var eachUnbind = function eachUnbind(_ref) {
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297 | var key = _ref.key,
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298 | scope = _ref.scope,
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299 | method = _ref.method,
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300 | _ref$splitKey = _ref.splitKey,
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301 | splitKey = _ref$splitKey === void 0 ? '+' : _ref$splitKey;
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302 | var multipleKeys = getKeys(key);
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303 | multipleKeys.forEach(function (originKey) {
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304 | var unbindKeys = originKey.split(splitKey);
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305 | var len = unbindKeys.length;
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306 | var lastKey = unbindKeys[len - 1];
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307 | var keyCode = lastKey === '*' ? '*' : code(lastKey);
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308 | if (!_handlers[keyCode]) return;
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309 |
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310 | if (!scope) scope = getScope();
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311 | var mods = len > 1 ? getMods(_modifier, unbindKeys) : [];
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312 | _handlers[keyCode] = _handlers[keyCode].filter(function (record) {
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313 |
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314 | var isMatchingMethod = method ? record.method === method : true;
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315 | return !(isMatchingMethod && record.scope === scope && compareArray(record.mods, mods));
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316 | });
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317 | });
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318 | };
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319 |
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320 |
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321 | function eventHandler(event, handler, scope, element) {
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322 | if (handler.element !== element) {
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323 | return;
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324 | }
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325 |
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326 | var modifiersMatch;
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327 |
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328 | if (handler.scope === scope || handler.scope === 'all') {
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329 |
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330 | modifiersMatch = handler.mods.length > 0;
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331 |
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332 | for (var y in _mods) {
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333 | if (Object.prototype.hasOwnProperty.call(_mods, y)) {
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334 | if (!_mods[y] && handler.mods.indexOf(+y) > -1 || _mods[y] && handler.mods.indexOf(+y) === -1) {
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335 | modifiersMatch = false;
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336 | }
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337 | }
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338 | }
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339 |
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340 |
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341 | if (handler.mods.length === 0 && !_mods[16] && !_mods[18] && !_mods[17] && !_mods[91] || modifiersMatch || handler.shortcut === '*') {
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342 | if (handler.method(event, handler) === false) {
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343 | if (event.preventDefault) event.preventDefault();else event.returnValue = false;
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344 | if (event.stopPropagation) event.stopPropagation();
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345 | if (event.cancelBubble) event.cancelBubble = true;
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346 | }
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347 | }
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348 | }
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349 | }
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350 |
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351 |
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352 | function dispatch(event, element) {
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353 | var asterisk = _handlers['*'];
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354 | var key = event.keyCode || event.which || event.charCode;
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355 |
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356 | if (!hotkeys.filter.call(this, event)) return;
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357 |
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358 |
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359 | if (key === 93 || key === 224) key = 91;
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360 | |
361 |
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362 |
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363 |
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364 |
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365 |
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366 |
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367 | if (_downKeys.indexOf(key) === -1 && key !== 229) _downKeys.push(key);
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368 | |
369 |
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370 |
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371 |
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372 |
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373 | ['ctrlKey', 'altKey', 'shiftKey', 'metaKey'].forEach(function (keyName) {
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374 | var keyNum = modifierMap[keyName];
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375 |
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376 | if (event[keyName] && _downKeys.indexOf(keyNum) === -1) {
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377 | _downKeys.push(keyNum);
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378 | } else if (!event[keyName] && _downKeys.indexOf(keyNum) > -1) {
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379 | _downKeys.splice(_downKeys.indexOf(keyNum), 1);
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380 | } else if (keyName === 'metaKey' && event[keyName] && _downKeys.length === 3) {
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381 | |
382 |
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383 |
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384 |
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385 | if (!(event.ctrlKey || event.shiftKey || event.altKey)) {
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386 | _downKeys = _downKeys.slice(_downKeys.indexOf(keyNum));
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387 | }
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388 | }
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389 | });
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390 | |
391 |
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392 |
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393 |
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394 | if (key in _mods) {
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395 | _mods[key] = true;
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396 |
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397 | for (var k in _modifier) {
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398 | if (_modifier[k] === key) hotkeys[k] = true;
|
399 | }
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400 |
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401 | if (!asterisk) return;
|
402 | }
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403 |
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404 |
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405 | for (var e in _mods) {
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406 | if (Object.prototype.hasOwnProperty.call(_mods, e)) {
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407 | _mods[e] = event[modifierMap[e]];
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408 | }
|
409 | }
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410 | |
411 |
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412 |
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413 |
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414 |
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415 |
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416 |
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417 |
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418 | if (event.getModifierState && !(event.altKey && !event.ctrlKey) && event.getModifierState('AltGraph')) {
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419 | if (_downKeys.indexOf(17) === -1) {
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420 | _downKeys.push(17);
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421 | }
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422 |
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423 | if (_downKeys.indexOf(18) === -1) {
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424 | _downKeys.push(18);
|
425 | }
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426 |
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427 | _mods[17] = true;
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428 | _mods[18] = true;
|
429 | }
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430 |
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431 |
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432 | var scope = getScope();
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433 |
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434 | if (asterisk) {
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435 | for (var i = 0; i < asterisk.length; i++) {
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436 | if (asterisk[i].scope === scope && (event.type === 'keydown' && asterisk[i].keydown || event.type === 'keyup' && asterisk[i].keyup)) {
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437 | eventHandler(event, asterisk[i], scope, element);
|
438 | }
|
439 | }
|
440 | }
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441 |
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442 |
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443 | if (!(key in _handlers)) return;
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444 |
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445 | for (var _i = 0; _i < _handlers[key].length; _i++) {
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446 | if (event.type === 'keydown' && _handlers[key][_i].keydown || event.type === 'keyup' && _handlers[key][_i].keyup) {
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447 | if (_handlers[key][_i].key) {
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448 | var record = _handlers[key][_i];
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449 | var splitKey = record.splitKey;
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450 | var keyShortcut = record.key.split(splitKey);
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451 | var _downKeysCurrent = [];
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452 |
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453 | for (var a = 0; a < keyShortcut.length; a++) {
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454 | _downKeysCurrent.push(code(keyShortcut[a]));
|
455 | }
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456 |
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457 | if (_downKeysCurrent.sort().join('') === _downKeys.sort().join('')) {
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458 |
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459 | eventHandler(event, record, scope, element);
|
460 | }
|
461 | }
|
462 | }
|
463 | }
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464 | }
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465 |
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466 |
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467 | function isElementBind(element) {
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468 | return elementHasBindEvent.indexOf(element) > -1;
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469 | }
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470 |
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471 | function hotkeys(key, option, method) {
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472 | _downKeys = [];
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473 | var keys = getKeys(key);
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474 |
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475 | var mods = [];
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476 | var scope = 'all';
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477 |
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478 | var element = document;
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479 |
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480 | var i = 0;
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481 | var keyup = false;
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482 | var keydown = true;
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483 | var splitKey = '+';
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484 | var capture = false;
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485 |
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486 | if (method === undefined && typeof option === 'function') {
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487 | method = option;
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488 | }
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489 |
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490 | if (Object.prototype.toString.call(option) === '[object Object]') {
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491 | if (option.scope) scope = option.scope;
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492 |
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493 | if (option.element) element = option.element;
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494 |
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495 | if (option.keyup) keyup = option.keyup;
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496 |
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497 | if (option.keydown !== undefined) keydown = option.keydown;
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498 |
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499 | if (option.capture !== undefined) capture = option.capture;
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500 |
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501 | if (typeof option.splitKey === 'string') splitKey = option.splitKey;
|
502 | }
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503 |
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504 | if (typeof option === 'string') scope = option;
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505 |
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506 | for (; i < keys.length; i++) {
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507 | key = keys[i].split(splitKey);
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508 |
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509 | mods = [];
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510 |
|
511 | if (key.length > 1) mods = getMods(_modifier, key);
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512 |
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513 | key = key[key.length - 1];
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514 | key = key === '*' ? '*' : code(key);
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515 |
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516 |
|
517 | if (!(key in _handlers)) _handlers[key] = [];
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518 |
|
519 | _handlers[key].push({
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520 | keyup: keyup,
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521 | keydown: keydown,
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522 | scope: scope,
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523 | mods: mods,
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524 | shortcut: keys[i],
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525 | method: method,
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526 | key: keys[i],
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527 | splitKey: splitKey,
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528 | element: element
|
529 | });
|
530 | }
|
531 |
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532 |
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533 | if (typeof element !== 'undefined' && !isElementBind(element) && window) {
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534 | elementHasBindEvent.push(element);
|
535 | addEvent(element, 'keydown', function (e) {
|
536 | dispatch(e, element);
|
537 | }, capture);
|
538 |
|
539 | if (!winListendFocus) {
|
540 | winListendFocus = true;
|
541 | addEvent(window, 'focus', function () {
|
542 | _downKeys = [];
|
543 | }, capture);
|
544 | }
|
545 |
|
546 | addEvent(element, 'keyup', function (e) {
|
547 | dispatch(e, element);
|
548 | clearModifier(e);
|
549 | }, capture);
|
550 | }
|
551 | }
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552 |
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553 | function trigger(shortcut) {
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554 | var scope = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'all';
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555 | Object.keys(_handlers).forEach(function (key) {
|
556 | var data = _handlers[key].find(function (item) {
|
557 | return item.scope === scope && item.shortcut === shortcut;
|
558 | });
|
559 |
|
560 | if (data && data.method) {
|
561 | data.method();
|
562 | }
|
563 | });
|
564 | }
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565 |
|
566 | var _api = {
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567 | setScope: setScope,
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568 | getScope: getScope,
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569 | deleteScope: deleteScope,
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570 | getPressedKeyCodes: getPressedKeyCodes,
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571 | isPressed: isPressed,
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572 | filter: filter,
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573 | trigger: trigger,
|
574 | unbind: unbind,
|
575 | keyMap: _keyMap,
|
576 | modifier: _modifier,
|
577 | modifierMap: modifierMap
|
578 | };
|
579 |
|
580 | for (var a in _api) {
|
581 | if (Object.prototype.hasOwnProperty.call(_api, a)) {
|
582 | hotkeys[a] = _api[a];
|
583 | }
|
584 | }
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585 |
|
586 | if (typeof window !== 'undefined') {
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587 | var _hotkeys = window.hotkeys;
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588 |
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589 | hotkeys.noConflict = function (deep) {
|
590 | if (deep && window.hotkeys === hotkeys) {
|
591 | window.hotkeys = _hotkeys;
|
592 | }
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593 |
|
594 | return hotkeys;
|
595 | };
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596 |
|
597 | window.hotkeys = hotkeys;
|
598 | }
|
599 |
|
600 | module.exports = hotkeys;
|