Function offsetValues

src/hooks/useOffset.ts:193–260

(values, offset, valueIndex, mode = 'unit')

  // Values
  const offsetValues: OffsetValues = (values, offset, valueIndex, mode = 'unit') => {
    const nextValues = values.map<number>(formatValue);
    const originValue = nextValues[valueIndex];
    const nextValue = offsetValue(nextValues, offset, valueIndex, mode);
    nextValues[valueIndex] = nextValue;

    if (allowCross === false) {
      // >>>>> Allow Cross
      const pushNum = pushable || 0;

      // ============ AllowCross ===============
      if (valueIndex > 0 && nextValues[valueIndex - 1] !== originValue) {
        nextValues[valueIndex] = Math.max(
          nextValues[valueIndex],
          nextValues[valueIndex - 1] + pushNum,
        );
      }

      if (valueIndex < nextValues.length - 1 && nextValues[valueIndex + 1] !== originValue) {
        nextValues[valueIndex] = Math.min(
          nextValues[valueIndex],
          nextValues[valueIndex + 1] - pushNum,
        );
      }
    } else if (typeof pushable === 'number' || pushable === null) {
      // >>>>> Pushable
      // =============== Push ==================

      // >>>>>> Basic push
      // End values
      for (let i = valueIndex + 1; i < nextValues.length; i += 1) {
        let changed = true;
        while (needPush(nextValues[i] - nextValues[i - 1]) && changed) {
          ({ value: nextValues[i], changed } = offsetChangedValue(nextValues, 1, i));
        }
      }

      // Start values
      for (let i = valueIndex; i > 0; i -= 1) {
        let changed = true;
        while (needPush(nextValues[i] - nextValues[i - 1]) && changed) {
          ({ value: nextValues[i - 1], changed } = offsetChangedValue(nextValues, -1, i - 1));
        }
      }

      // >>>>> Revert back to safe push range
      // End to Start
      for (let i = nextValues.length - 1; i > 0; i -= 1) {
        let changed = true;
        while (needPush(nextValues[i] - nextValues[i - 1]) && changed) {
          ({ value: nextValues[i - 1], changed } = offsetChangedValue(nextValues, -1, i - 1));
        }
      }

      // Start to End
      for (let i = 0; i < nextValues.length - 1; i += 1) {
        let changed = true;
        while (needPush(nextValues[i + 1] - nextValues[i]) && changed) {