lucid-ui/lib/components/DropMenu/DropMenu.reducers.js

A UI component library from AppNexus.

import _isNumber from "lodash/isNumber";
import _isNull from "lodash/isNull";
import _isNil from "lodash/isNil";
import _last from "lodash/last";

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

export function onExpand(state) {
  var selectedIndices = state.selectedIndices;

  var focusedIndex = _last(selectedIndices);

  return _objectSpread(_objectSpread({}, state), {}, {
    isExpanded: true,
    focusedIndex: _isNil(focusedIndex) ? null : focusedIndex
  });
}
export function onCollapse(state) {
  return _objectSpread(_objectSpread({}, state), {}, {
    isExpanded: false
  });
}
export function onSelect(state, optionIndex) {
  return _objectSpread(_objectSpread({}, state), {}, {
    selectedIndices: [optionIndex],
    isExpanded: false
  });
}
export function onFocusNext(state) {
  var focusedIndex = state.focusedIndex;
  var nextFocusedIndex = focusedIndex;

  if (_isNull(focusedIndex)) {
    nextFocusedIndex = 0;
  } else if (_isNumber(focusedIndex)) {
    nextFocusedIndex = focusedIndex + 1;
  }

  return _objectSpread(_objectSpread({}, state), {}, {
    focusedIndex: nextFocusedIndex
  });
}
export function onFocusPrev(state) {
  var focusedIndex = state.focusedIndex;
  var nextFocusedIndex = focusedIndex;

  if (_isNull(focusedIndex) || focusedIndex === 0) {
    nextFocusedIndex = null;
  } else if (_isNumber(focusedIndex)) {
    nextFocusedIndex = focusedIndex - 1;
  }

  return _objectSpread(_objectSpread({}, state), {}, {
    focusedIndex: nextFocusedIndex
  });
}
export function onFocusOption(state, optionIndex) {
  return _objectSpread(_objectSpread({}, state), {}, {
    focusedIndex: optionIndex
  });
}