删除无用文件夹

wechat/miniprogram_npm/@vant/weapp/overlay/index.js

@@ -0,0 +1,28 @@
+'use strict';
+Object.defineProperty(exports, '__esModule', { value: true });
+var component_1 = require('../common/component');
+component_1.VantComponent({
+  props: {
+    show: Boolean,
+    customStyle: String,
+    duration: {
+      type: null,
+      value: 300,
+    },
+    zIndex: {
+      type: Number,
+      value: 1,
+    },
+    lockScroll: {
+      type: Boolean,
+      value: true,
+    },
+  },
+  methods: {
+    onClick: function () {
+      this.$emit('click');
+    },
+    // for prevent touchmove
+    noop: function () {},
+  },
+});

wechat/miniprogram_npm/@vant/weapp/overlay/index.json

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+{
+  "component": true,
+  "usingComponents": {
+    "van-transition": "../transition/index"
+  }
+}

wechat/miniprogram_npm/@vant/weapp/overlay/index.wxml

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+<van-transition
+  wx:if="{{ lockScroll }}"
+  show="{{ show }}"
+  custom-class="van-overlay"
+  custom-style="z-index: {{ zIndex }}; {{ customStyle }}"
+  duration="{{ duration }}"
+  bind:tap="onClick"
+  catch:touchmove="noop"
+>
+  <slot></slot>
+</van-transition>
+<van-transition
+  wx:else
+  show="{{ show }}"
+  custom-class="van-overlay"
+  custom-style="z-index: {{ zIndex }}; {{ customStyle }}"
+  duration="{{ duration }}"
+  bind:tap="onClick"
+>
+  <slot></slot>
+</van-transition>

wechat/miniprogram_npm/@vant/weapp/overlay/index.wxss

@@ -0,0 +1 @@
+@import '../common/index.wxss';.van-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.7);background-color:var(--overlay-background-color,rgba(0,0,0,.7))}