50 lines
1.1 KiB
TypeScript
50 lines
1.1 KiB
TypeScript
import { ref } from 'vue';
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export function useFormulaReferenceMode() {
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const active = ref(false);
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const pickedCell = ref<{ row: number; col: number } | null>(null);
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const caret = ref(0);
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function setCaret(pos: number) {
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caret.value = Math.max(0, pos);
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}
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function enterIfNeeded(draft: string, focused: boolean, editable: boolean) {
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if (!focused || !editable) {
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active.value = false;
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pickedCell.value = null;
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return;
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}
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const on = draft.trimStart().startsWith('=');
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active.value = on;
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if (!on) pickedCell.value = null;
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}
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function exit() {
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active.value = false;
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pickedCell.value = null;
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}
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function insertAtCaret(draft: string, text: string): string {
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const pos = caret.value;
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const next = draft.slice(0, pos) + text + draft.slice(pos);
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caret.value = pos + text.length;
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return next;
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}
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function pickCell(row: number, col: number) {
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pickedCell.value = { row, col };
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}
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return {
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active,
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pickedCell,
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caret,
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setCaret,
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enterIfNeeded,
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exit,
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insertAtCaret,
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pickCell,
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};
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}
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