vant-weapp/lib/dropdown-menu/index.js

'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
var component_1 = require('../common/component');
var utils_1 = require('../common/utils');
var ARRAY = [];
component_1.VantComponent({
  field: true,
  relation: {
    name: 'dropdown-item',
    type: 'descendant',
    current: 'dropdown-menu',
    linked: function () {
      this.updateItemListData();
    },
    unlinked: function () {
      this.updateItemListData();
    },
  },
  props: {
    activeColor: {
      type: String,
      observer: 'updateChildrenData',
    },
    overlay: {
      type: Boolean,
      value: true,
      observer: 'updateChildrenData',
    },
    zIndex: {
      type: Number,
      value: 10,
    },
    duration: {
      type: Number,
      value: 200,
      observer: 'updateChildrenData',
    },
    direction: {
      type: String,
      value: 'down',
      observer: 'updateChildrenData',
    },
    closeOnClickOverlay: {
      type: Boolean,
      value: true,
      observer: 'updateChildrenData',
    },
    closeOnClickOutside: {
      type: Boolean,
      value: true,
    },
  },
  data: {
    itemListData: [],
  },
  beforeCreate: function () {
    var windowHeight = wx.getSystemInfoSync().windowHeight;
    this.windowHeight = windowHeight;
    ARRAY.push(this);
  },
  destroyed: function () {
    var _this = this;
    ARRAY = ARRAY.filter(function (item) {
      return item !== _this;
    });
  },
  methods: {
    updateItemListData: function () {
      this.setData({
        itemListData: this.children.map(function (child) {
          return child.data;
        }),
      });
    },
    updateChildrenData: function () {
      this.children.forEach(function (child) {
        child.updateDataFromParent();
      });
    },
    toggleItem: function (active) {
      this.children.forEach(function (item, index) {
        var showPopup = item.data.showPopup;
        if (index === active) {
          item.toggle();
        } else if (showPopup) {
          item.toggle(false, { immediate: true });
        }
      });
    },
    close: function () {
      this.children.forEach(function (child) {
        child.toggle(false, { immediate: true });
      });
    },
    getChildWrapperStyle: function () {
      var _this = this;
      var _a = this.data,
        zIndex = _a.zIndex,
        direction = _a.direction;
      return utils_1.getRect
        .call(this, '.van-dropdown-menu')
        .then(function (rect) {
          var _a = rect.top,
            top = _a === void 0 ? 0 : _a,
            _b = rect.bottom,
            bottom = _b === void 0 ? 0 : _b;
          var offset = direction === 'down' ? bottom : _this.windowHeight - top;
          var wrapperStyle = 'z-index: ' + zIndex + ';';
          if (direction === 'down') {
            wrapperStyle += 'top: ' + utils_1.addUnit(offset) + ';';
          } else {
            wrapperStyle += 'bottom: ' + utils_1.addUnit(offset) + ';';
          }
          return wrapperStyle;
        });
    },
    onTitleTap: function (event) {
      var _this = this;
      var index = event.currentTarget.dataset.index;
      var child = this.children[index];
      if (!child.data.disabled) {
        ARRAY.forEach(function (menuItem) {
          if (
            menuItem &&
            menuItem.data.closeOnClickOutside &&
            menuItem !== _this
          ) {
            menuItem.close();
          }
        });
        this.toggleItem(index);
      }
    },
  },
});