Function KeyboardEvent

src/utils/keyboardEvent.js:113–291

(type, dict)

 * @returns
 */
export default function KeyboardEvent(type, dict) {
	let event;

	if (initKeyboardEventType) {
		event = document.createEvent("KeyboardEvent");
	} else {
		event = document.createEvent("Event");
	}

	let propName;
	let localDict = {};

	if (!dict.key && (dict.keyCode || dict.which)) {
		let key = keys[dict.keyCode || dict.which];
		if (!key) key = String.fromCharCode(dict.keyCode || dict.which);
		dict.key = key;
	} else if (dict.key && !dict.which && !dict.keyCode) {
		let keyCode = Object.keys(keys).find((key) => keys[key] === dict.key);
		if (!keyCode) keyCode = dict.key.charCodeAt(0);
		dict.keyCode = keyCode;
		dict.which = keyCode;
	}

	for (propName in keyboardEventPropertiesDictionary)
		if (own(keyboardEventPropertiesDictionary, propName)) {
			localDict[propName] = ((own(dict, propName) && dict) ||
				keyboardEventPropertiesDictionary)[propName];
		}

	const ctrlKey = localDict["ctrlKey"];
	const shiftKey = localDict["shiftKey"];
	const altKey = localDict["altKey"];
	const metaKey = localDict["metaKey"];
	const altGraphKey = localDict["altGraphKey"];

	const modifiersListArg =
		initKeyboardEventType > 3
			? (
					(ctrlKey ? "Control" : "") +
					(shiftKey ? " Shift" : "") +
					(altKey ? " Alt" : "") +
					(metaKey ? " Meta" : "") +
					(altGraphKey ? " AltGraph" : "")
				).trim()
			: null;

	const key = localDict["key"] + "";
	const char = localDict["char"] + "";
	const location = localDict["location"];
	const keyCode =
		localDict["keyCode"] ||
		(localDict["keyCode"] = (key && key.charCodeAt(0)) || 0);
	const charCode =
		localDict["charCode"] ||
		(localDict["charCode"] = (char && char.charCodeAt(0)) || 0);
	const bubbles = localDict["bubbles"];
	const cancelable = localDict["cancelable"];
	const repeat = localDict["repeat"];