22 lines
849 B
JavaScript
22 lines
849 B
JavaScript
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"use strict";
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const modifiers = /^(Command|Cmd|Control|Ctrl|CommandOrControl|CmdOrCtrl|Alt|Option|AltGr|Shift|Super)$/;
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const keyCodes = /^([0-9A-Z)!@#$%^&*(:+<_>?~{|}";=,\-./`[\\\]']|F1*[1-9]|F10|F2[0-4]|Plus|Space|Tab|Backspace|Delete|Insert|Return|Enter|Up|Down|Left|Right|Home|End|PageUp|PageDown|Escape|Esc|VolumeUp|VolumeDown|VolumeMute|MediaNextTrack|MediaPreviousTrack|MediaStop|MediaPlayPause|PrintScreen)$/;
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module.exports = function (str) {
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let parts = str.split("+");
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let keyFound = false;
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return parts.every((val, index) => {
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const isKey = keyCodes.test(val);
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const isModifier = modifiers.test(val);
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if (isKey) {
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// Key must be unique
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if (keyFound) return false;
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keyFound = true;
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}
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// Key is required
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if (index === parts.length - 1 && !keyFound) return false;
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return isKey || isModifier;
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});
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};
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