All files / roosterjs-content-model-api/lib/modelApi/list setModelListStartNumber.ts

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import { getFirstSelectedListItem, mutateBlock } from 'roosterjs-content-model-dom';
import type { ReadonlyContentModelDocument } from 'roosterjs-content-model-types';
 
/**
 * Set start number of a list item
 * @param model The model document
 * @param value The number to set to, must be equal or greater than 1
 */
export function setModelListStartNumber(model: ReadonlyContentModelDocument, value: number) {
    const listItem = getFirstSelectedListItem(model);
    const level = listItem ? mutateBlock(listItem).levels[listItem?.levels.length - 1] : null;
 
    if (level) {
        level.format.startNumberOverride = value;
 
        return true;
    } else {
        return false;
    }
}