删除无用文件夹

wechat/miniprogram_npm/@vant/weapp/picker-column/index.js

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+'use strict';
+Object.defineProperty(exports, '__esModule', { value: true });
+var component_1 = require('../common/component');
+var utils_1 = require('../common/utils');
+var validator_1 = require('../common/validator');
+var DEFAULT_DURATION = 200;
+component_1.VantComponent({
+  classes: ['active-class'],
+  props: {
+    valueKey: String,
+    className: String,
+    itemHeight: Number,
+    visibleItemCount: Number,
+    initialOptions: {
+      type: Array,
+      value: [],
+    },
+    defaultIndex: {
+      type: Number,
+      value: 0,
+      observer: function (value) {
+        this.setIndex(value);
+      },
+    },
+  },
+  data: {
+    startY: 0,
+    offset: 0,
+    duration: 0,
+    startOffset: 0,
+    options: [],
+    currentIndex: 0,
+  },
+  created: function () {
+    var _this = this;
+    var _a = this.data,
+      defaultIndex = _a.defaultIndex,
+      initialOptions = _a.initialOptions;
+    this.set({
+      currentIndex: defaultIndex,
+      options: initialOptions,
+    }).then(function () {
+      _this.setIndex(defaultIndex);
+    });
+  },
+  methods: {
+    getCount: function () {
+      return this.data.options.length;
+    },
+    onTouchStart: function (event) {
+      this.setData({
+        startY: event.touches[0].clientY,
+        startOffset: this.data.offset,
+        duration: 0,
+      });
+    },
+    onTouchMove: function (event) {
+      var data = this.data;
+      var deltaY = event.touches[0].clientY - data.startY;
+      this.setData({
+        offset: utils_1.range(
+          data.startOffset + deltaY,
+          -(this.getCount() * data.itemHeight),
+          data.itemHeight
+        ),
+      });
+    },
+    onTouchEnd: function () {
+      var data = this.data;
+      if (data.offset !== data.startOffset) {
+        this.setData({ duration: DEFAULT_DURATION });
+        var index = utils_1.range(
+          Math.round(-data.offset / data.itemHeight),
+          0,
+          this.getCount() - 1
+        );
+        this.setIndex(index, true);
+      }
+    },
+    onClickItem: function (event) {
+      var index = event.currentTarget.dataset.index;
+      this.setIndex(index, true);
+    },
+    adjustIndex: function (index) {
+      var data = this.data;
+      var count = this.getCount();
+      index = utils_1.range(index, 0, count);
+      for (var i = index; i < count; i++) {
+        if (!this.isDisabled(data.options[i])) return i;
+      }
+      for (var i = index - 1; i >= 0; i--) {
+        if (!this.isDisabled(data.options[i])) return i;
+      }
+    },
+    isDisabled: function (option) {
+      return validator_1.isObj(option) && option.disabled;
+    },
+    getOptionText: function (option) {
+      var data = this.data;
+      return validator_1.isObj(option) && data.valueKey in option
+        ? option[data.valueKey]
+        : option;
+    },
+    setIndex: function (index, userAction) {
+      var _this = this;
+      var data = this.data;
+      index = this.adjustIndex(index) || 0;
+      var offset = -index * data.itemHeight;
+      if (index !== data.currentIndex) {
+        return this.set({ offset: offset, currentIndex: index }).then(
+          function () {
+            userAction && _this.$emit('change', index);
+          }
+        );
+      }
+      return this.set({ offset: offset });
+    },
+    setValue: function (value) {
+      var options = this.data.options;
+      for (var i = 0; i < options.length; i++) {
+        if (this.getOptionText(options[i]) === value) {
+          return this.setIndex(i);
+        }
+      }
+      return Promise.resolve();
+    },
+    getValue: function () {
+      var data = this.data;
+      return data.options[data.currentIndex];
+    },
+  },
+});