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9 | 'use strict';
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16 | var modifierKeyToProp = {
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17 | Alt: 'altKey',
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18 | Control: 'ctrlKey',
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19 | Meta: 'metaKey',
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20 | Shift: 'shiftKey'
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21 | };
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26 | function modifierStateGetter(keyArg) {
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27 | var syntheticEvent = this;
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28 | var nativeEvent = syntheticEvent.nativeEvent;
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29 | if (nativeEvent.getModifierState) {
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30 | return nativeEvent.getModifierState(keyArg);
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31 | }
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32 | var keyProp = modifierKeyToProp[keyArg];
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33 | return keyProp ? !!nativeEvent[keyProp] : false;
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34 | }
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35 |
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36 | function getEventModifierState(nativeEvent) {
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37 | return modifierStateGetter;
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38 | }
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40 | module.exports = getEventModifierState; |
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