sj-miniprogram/merchant-chat-pc/node_modules/element-plus/es/hooks/use-cursor/index.mjs

//#region ../../packages/hooks/use-cursor/index.ts
function useCursor(input) {
	let selectionInfo;
	function recordCursor() {
		if (input.value == void 0) return;
		const { selectionStart, selectionEnd, value } = input.value;
		if (selectionStart == null || selectionEnd == null) return;
		selectionInfo = {
			selectionStart,
			selectionEnd,
			value,
			beforeTxt: value.slice(0, Math.max(0, selectionStart)),
			afterTxt: value.slice(Math.max(0, selectionEnd))
		};
	}
	function setCursor() {
		if (input.value == void 0 || selectionInfo == void 0) return;
		const { value } = input.value;
		const { beforeTxt, afterTxt, selectionStart } = selectionInfo;
		if (beforeTxt == void 0 || afterTxt == void 0 || selectionStart == void 0) return;
		let startPos = value.length;
		if (value.endsWith(afterTxt)) startPos = value.length - afterTxt.length;
		else if (value.startsWith(beforeTxt)) startPos = beforeTxt.length;
		else {
			const beforeLastChar = beforeTxt[selectionStart - 1];
			const newIndex = value.indexOf(beforeLastChar, selectionStart - 1);
			if (newIndex !== -1) startPos = newIndex + 1;
		}
		input.value.setSelectionRange(startPos, startPos);
	}
	return [recordCursor, setCursor];
}

//#endregion
export { useCursor };
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