element-plus
Version:
A Component Library for Vue 3
36 lines (35 loc) • 1.27 kB
JavaScript
//#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 };
//# sourceMappingURL=index.mjs.map