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frontend/node_modules/rc-slider/es/hooks/useOffset.js

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+import _toConsumableArray from "@babel/runtime/helpers/esm/toConsumableArray";
+import * as React from 'react';
+
+/** Format the value in the range of [min, max] */
+
+/** Format value align with step */
+
+/** Format value align with step & marks */
+
+export default function useOffset(min, max, step, markList, allowCross, pushable) {
+  var formatRangeValue = React.useCallback(function (val) {
+    return Math.max(min, Math.min(max, val));
+  }, [min, max]);
+  var formatStepValue = React.useCallback(function (val) {
+    if (step !== null) {
+      var stepValue = min + Math.round((formatRangeValue(val) - min) / step) * step;
+
+      // Cut number in case to be like 0.30000000000000004
+      var getDecimal = function getDecimal(num) {
+        return (String(num).split('.')[1] || '').length;
+      };
+      var maxDecimal = Math.max(getDecimal(step), getDecimal(max), getDecimal(min));
+      var fixedValue = Number(stepValue.toFixed(maxDecimal));
+      return min <= fixedValue && fixedValue <= max ? fixedValue : null;
+    }
+    return null;
+  }, [step, min, max, formatRangeValue]);
+  var formatValue = React.useCallback(function (val) {
+    var formatNextValue = formatRangeValue(val);
+
+    // List align values
+    var alignValues = markList.map(function (mark) {
+      return mark.value;
+    });
+    if (step !== null) {
+      alignValues.push(formatStepValue(val));
+    }
+
+    // min & max
+    alignValues.push(min, max);
+
+    // Align with marks
+    var closeValue = alignValues[0];
+    var closeDist = max - min;
+    alignValues.forEach(function (alignValue) {
+      var dist = Math.abs(formatNextValue - alignValue);
+      if (dist <= closeDist) {
+        closeValue = alignValue;
+        closeDist = dist;
+      }
+    });
+    return closeValue;
+  }, [min, max, markList, step, formatRangeValue, formatStepValue]);
+
+  // ========================== Offset ==========================
+  // Single Value
+  var offsetValue = function offsetValue(values, offset, valueIndex) {
+    var mode = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 'unit';
+    if (typeof offset === 'number') {
+      var nextValue;
+      var originValue = values[valueIndex];
+
+      // Only used for `dist` mode
+      var targetDistValue = originValue + offset;
+
+      // Compare next step value & mark value which is best match
+      var potentialValues = [];
+      markList.forEach(function (mark) {
+        potentialValues.push(mark.value);
+      });
+
+      // Min & Max
+      potentialValues.push(min, max);
+
+      // In case origin value is align with mark but not with step
+      potentialValues.push(formatStepValue(originValue));
+
+      // Put offset step value also
+      var sign = offset > 0 ? 1 : -1;
+      if (mode === 'unit') {
+        potentialValues.push(formatStepValue(originValue + sign * step));
+      } else {
+        potentialValues.push(formatStepValue(targetDistValue));
+      }
+
+      // Find close one
+      potentialValues = potentialValues.filter(function (val) {
+        return val !== null;
+      })
+      // Remove reverse value
+      .filter(function (val) {
+        return offset < 0 ? val <= originValue : val >= originValue;
+      });
+      if (mode === 'unit') {
+        // `unit` mode can not contain itself
+        potentialValues = potentialValues.filter(function (val) {
+          return val !== originValue;
+        });
+      }
+      var compareValue = mode === 'unit' ? originValue : targetDistValue;
+      nextValue = potentialValues[0];
+      var valueDist = Math.abs(nextValue - compareValue);
+      potentialValues.forEach(function (potentialValue) {
+        var dist = Math.abs(potentialValue - compareValue);
+        if (dist < valueDist) {
+          nextValue = potentialValue;
+          valueDist = dist;
+        }
+      });
+
+      // Out of range will back to range
+      if (nextValue === undefined) {
+        return offset < 0 ? min : max;
+      }
+
+      // `dist` mode
+      if (mode === 'dist') {
+        return nextValue;
+      }
+
+      // `unit` mode may need another round
+      if (Math.abs(offset) > 1) {
+        var cloneValues = _toConsumableArray(values);
+        cloneValues[valueIndex] = nextValue;
+        return offsetValue(cloneValues, offset - sign, valueIndex, mode);
+      }
+      return nextValue;
+    } else if (offset === 'min') {
+      return min;
+    } else if (offset === 'max') {
+      return max;
+    }
+  };
+
+  /** Same as `offsetValue` but return `changed` mark to tell value changed */
+  var offsetChangedValue = function offsetChangedValue(values, offset, valueIndex) {
+    var mode = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 'unit';
+    var originValue = values[valueIndex];
+    var nextValue = offsetValue(values, offset, valueIndex, mode);
+    return {
+      value: nextValue,
+      changed: nextValue !== originValue
+    };
+  };
+  var needPush = function needPush(dist) {
+    return pushable === null && dist === 0 || typeof pushable === 'number' && dist < pushable;
+  };
+
+  // Values
+  var offsetValues = function offsetValues(values, offset, valueIndex) {
+    var mode = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 'unit';
+    var nextValues = values.map(formatValue);
+    var originValue = nextValues[valueIndex];
+    var nextValue = offsetValue(nextValues, offset, valueIndex, mode);
+    nextValues[valueIndex] = nextValue;
+    if (allowCross === false) {
+      // >>>>> Allow Cross
+      var 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 (var i = valueIndex + 1; i < nextValues.length; i += 1) {
+        var changed = true;
+        while (needPush(nextValues[i] - nextValues[i - 1]) && changed) {
+          var _offsetChangedValue = offsetChangedValue(nextValues, 1, i);
+          nextValues[i] = _offsetChangedValue.value;
+          changed = _offsetChangedValue.changed;
+        }
+      }
+
+      // Start values
+      for (var _i = valueIndex; _i > 0; _i -= 1) {
+        var _changed = true;
+        while (needPush(nextValues[_i] - nextValues[_i - 1]) && _changed) {
+          var _offsetChangedValue2 = offsetChangedValue(nextValues, -1, _i - 1);
+          nextValues[_i - 1] = _offsetChangedValue2.value;
+          _changed = _offsetChangedValue2.changed;
+        }
+      }
+
+      // >>>>> Revert back to safe push range
+      // End to Start
+      for (var _i2 = nextValues.length - 1; _i2 > 0; _i2 -= 1) {
+        var _changed2 = true;
+        while (needPush(nextValues[_i2] - nextValues[_i2 - 1]) && _changed2) {
+          var _offsetChangedValue3 = offsetChangedValue(nextValues, -1, _i2 - 1);
+          nextValues[_i2 - 1] = _offsetChangedValue3.value;
+          _changed2 = _offsetChangedValue3.changed;
+        }
+      }
+
+      // Start to End
+      for (var _i3 = 0; _i3 < nextValues.length - 1; _i3 += 1) {
+        var _changed3 = true;
+        while (needPush(nextValues[_i3 + 1] - nextValues[_i3]) && _changed3) {
+          var _offsetChangedValue4 = offsetChangedValue(nextValues, 1, _i3 + 1);
+          nextValues[_i3 + 1] = _offsetChangedValue4.value;
+          _changed3 = _offsetChangedValue4.changed;
+        }
+      }
+    }
+    return {
+      value: nextValues[valueIndex],
+      values: nextValues
+    };
+  };
+  return [formatValue, offsetValues];
+}