第一次提交

miniprogram/@vant/weapp/dist/dropdown-item/index.js

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+import { useParent } from '../common/relation';
+import { VantComponent } from '../common/component';
+VantComponent({
+    field: true,
+    relation: useParent('dropdown-menu', function () {
+        this.updateDataFromParent();
+    }),
+    props: {
+        value: {
+            type: null,
+            observer: 'rerender',
+        },
+        title: {
+            type: String,
+            observer: 'rerender',
+        },
+        disabled: Boolean,
+        titleClass: {
+            type: String,
+            observer: 'rerender',
+        },
+        options: {
+            type: Array,
+            value: [],
+            observer: 'rerender',
+        },
+        popupStyle: String,
+    },
+    data: {
+        transition: true,
+        showPopup: false,
+        showWrapper: false,
+        displayTitle: '',
+    },
+    methods: {
+        rerender() {
+            wx.nextTick(() => {
+                var _a;
+                (_a = this.parent) === null || _a === void 0 ? void 0 : _a.updateItemListData();
+            });
+        },
+        updateDataFromParent() {
+            if (this.parent) {
+                const { overlay, duration, activeColor, closeOnClickOverlay, direction, } = this.parent.data;
+                this.setData({
+                    overlay,
+                    duration,
+                    activeColor,
+                    closeOnClickOverlay,
+                    direction,
+                });
+            }
+        },
+        onOpen() {
+            this.$emit('open');
+        },
+        onOpened() {
+            this.$emit('opened');
+        },
+        onClose() {
+            this.$emit('close');
+        },
+        onClosed() {
+            this.$emit('closed');
+            this.setData({ showWrapper: false });
+        },
+        onOptionTap(event) {
+            const { option } = event.currentTarget.dataset;
+            const { value } = option;
+            const shouldEmitChange = this.data.value !== value;
+            this.setData({ showPopup: false, value });
+            this.$emit('close');
+            this.rerender();
+            if (shouldEmitChange) {
+                this.$emit('change', value);
+            }
+        },
+        toggle(show, options = {}) {
+            var _a;
+            const { showPopup } = this.data;
+            if (typeof show !== 'boolean') {
+                show = !showPopup;
+            }
+            if (show === showPopup) {
+                return;
+            }
+            this.setData({
+                transition: !options.immediate,
+                showPopup: show,
+            });
+            if (show) {
+                (_a = this.parent) === null || _a === void 0 ? void 0 : _a.getChildWrapperStyle().then((wrapperStyle) => {
+                    this.setData({ wrapperStyle, showWrapper: true });
+                    this.rerender();
+                });
+            }
+            else {
+                this.rerender();
+            }
+        },
+    },
+});

miniprogram/@vant/weapp/dist/dropdown-item/index.json

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+{
+  "component": true,
+  "usingComponents": {
+    "van-popup": "../popup/index",
+    "van-cell": "../cell/index",
+    "van-icon": "../icon/index"
+  }
+}

miniprogram/@vant/weapp/dist/dropdown-item/index.wxml

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+<wxs src="../wxs/utils.wxs" module="utils" />
+
+<view
+  wx:if="{{ showWrapper }}"
+  class="{{ utils.bem('dropdown-item', direction) }}"
+  style="{{ wrapperStyle }}"
+>
+  <van-popup
+    show="{{ showPopup }}"
+    custom-style="position: absolute;{{ popupStyle }}"
+    overlay-style="position: absolute;"
+    overlay="{{ overlay }}"
+    position="{{ direction === 'down' ? 'top' : 'bottom' }}"
+    duration="{{ transition ? duration : 0 }}"
+    close-on-click-overlay="{{ closeOnClickOverlay }}"
+    bind:enter="onOpen"
+    bind:leave="onClose"
+    bind:close="toggle"
+    bind:after-enter="onOpened"
+    bind:after-leave="onClosed"
+  >
+    <van-cell
+      wx:for="{{ options }}"
+      wx:key="value"
+      data-option="{{ item }}"
+      class="{{ utils.bem('dropdown-item__option', { active: item.value === value } ) }}"
+      clickable
+      icon="{{ item.icon }}"
+      bind:tap="onOptionTap"
+    >
+      <view
+        slot="title"
+        class="van-dropdown-item__title"
+        style="{{ item.value === value  ? 'color:' + activeColor : '' }}"
+      >
+        {{ item.text }}
+      </view>
+      <van-icon
+        wx:if="{{ item.value === value }}"
+        name="success"
+        class="van-dropdown-item__icon"
+        color="{{ activeColor }}"
+      />
+    </van-cell>
+
+    <slot />
+  </van-popup>
+</view>

miniprogram/@vant/weapp/dist/dropdown-item/index.wxss

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+@import '../common/index.wxss';.van-dropdown-item{left:0;overflow:hidden;position:fixed;right:0}.van-dropdown-item__option{text-align:left}.van-dropdown-item__option--active .van-dropdown-item__icon,.van-dropdown-item__option--active .van-dropdown-item__title{color:var(--dropdown-menu-option-active-color,#ee0a24)}.van-dropdown-item--up{top:0}.van-dropdown-item--down{bottom:0}.van-dropdown-item__icon{display:block;line-height:inherit}

miniprogram/@vant/weapp/dist/dropdown-item/shared.js

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+export {};