werun-wxapp/miniprogram_npm/@vant/weapp/picker/index.js

'use strict';
var __assign =
  (this && this.__assign) ||
  function () {
    __assign =
      Object.assign ||
      function (t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
          s = arguments[i];
          for (var p in s)
            if (Object.prototype.hasOwnProperty.call(s, p)) t[p] = s[p];
        }
        return t;
      };
    return __assign.apply(this, arguments);
  };
Object.defineProperty(exports, '__esModule', { value: true });
var component_1 = require('../common/component');
var shared_1 = require('./shared');
component_1.VantComponent({
  classes: ['active-class', 'toolbar-class', 'column-class'],
  props: __assign(__assign({}, shared_1.pickerProps), {
    valueKey: {
      type: String,
      value: 'text',
    },
    toolbarPosition: {
      type: String,
      value: 'top',
    },
    defaultIndex: {
      type: Number,
      value: 0,
    },
    columns: {
      type: Array,
      value: [],
      observer: function (columns) {
        if (columns === void 0) {
          columns = [];
        }
        this.simple = columns.length && !columns[0].values;
        if (Array.isArray(this.children) && this.children.length) {
          this.setColumns().catch(function () {});
        }
      },
    },
  }),
  beforeCreate: function () {
    var _this = this;
    Object.defineProperty(this, 'children', {
      get: function () {
        return _this.selectAllComponents('.van-picker__column') || [];
      },
    });
  },
  methods: {
    noop: function () {},
    setColumns: function () {
      var _this = this;
      var data = this.data;
      var columns = this.simple ? [{ values: data.columns }] : data.columns;
      var stack = columns.map(function (column, index) {
        return _this.setColumnValues(index, column.values);
      });
      return Promise.all(stack);
    },
    emit: function (event) {
      var type = event.currentTarget.dataset.type;
      if (this.simple) {
        this.$emit(type, {
          value: this.getColumnValue(0),
          index: this.getColumnIndex(0),
        });
      } else {
        this.$emit(type, {
          value: this.getValues(),
          index: this.getIndexes(),
        });
      }
    },
    onChange: function (event) {
      if (this.simple) {
        this.$emit('change', {
          picker: this,
          value: this.getColumnValue(0),
          index: this.getColumnIndex(0),
        });
      } else {
        this.$emit('change', {
          picker: this,
          value: this.getValues(),
          index: event.currentTarget.dataset.index,
        });
      }
    },
    // get column instance by index
    getColumn: function (index) {
      return this.children[index];
    },
    // get column value by index
    getColumnValue: function (index) {
      var column = this.getColumn(index);
      return column && column.getValue();
    },
    // set column value by index
    setColumnValue: function (index, value) {
      var column = this.getColumn(index);
      if (column == null) {
        return Promise.reject(new Error('setColumnValue: 对应列不存在'));
      }
      return column.setValue(value);
    },
    // get column option index by column index
    getColumnIndex: function (columnIndex) {
      return (this.getColumn(columnIndex) || {}).data.currentIndex;
    },
    // set column option index by column index
    setColumnIndex: function (columnIndex, optionIndex) {
      var column = this.getColumn(columnIndex);
      if (column == null) {
        return Promise.reject(new Error('setColumnIndex: 对应列不存在'));
      }
      return column.setIndex(optionIndex);
    },
    // get options of column by index
    getColumnValues: function (index) {
      return (this.children[index] || {}).data.options;
    },
    // set options of column by index
    setColumnValues: function (index, options, needReset) {
      if (needReset === void 0) {
        needReset = true;
      }
      var column = this.children[index];
      if (column == null) {
        return Promise.reject(new Error('setColumnValues: 对应列不存在'));
      }
      var isSame =
        JSON.stringify(column.data.options) === JSON.stringify(options);
      if (isSame) {
        return Promise.resolve();
      }
      return column.set({ options: options }).then(function () {
        if (needReset) {
          column.setIndex(0);
        }
      });
    },
    // get values of all columns
    getValues: function () {
      return this.children.map(function (child) {
        return child.getValue();
      });
    },
    // set values of all columns
    setValues: function (values) {
      var _this = this;
      var stack = values.map(function (value, index) {
        return _this.setColumnValue(index, value);
      });
      return Promise.all(stack);
    },
    // get indexes of all columns
    getIndexes: function () {
      return this.children.map(function (child) {
        return child.data.currentIndex;
      });
    },
    // set indexes of all columns
    setIndexes: function (indexes) {
      var _this = this;
      var stack = indexes.map(function (optionIndex, columnIndex) {
        return _this.setColumnIndex(columnIndex, optionIndex);
      });
      return Promise.all(stack);
    },
  },
});