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<template>
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<view v-if="visibleSync" :style="[customStyle, {
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zIndex: uZindex - 1
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}]" class="u-drawer" hover-stop-propagation>
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<u-mask :duration="duration" :custom-style="maskCustomStyle" :maskClickAble="maskCloseAble" :z-index="uZindex - 2" :show="showDrawer && mask" @click="maskClick"></u-mask>
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<view
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class="u-drawer-content"
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@tap="modeCenterClose(mode)"
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:class="[
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safeAreaInsetBottom ? 'safe-area-inset-bottom' : '',
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'u-drawer-' + mode,
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showDrawer ? 'u-drawer-content-visible' : '',
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zoom && mode == 'center' ? 'u-animation-zoom' : ''
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]"
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@touchmove.stop.prevent
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@tap.stop.prevent
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:style="[style]"
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>
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<view class="u-mode-center-box" @tap.stop.prevent @touchmove.stop.prevent v-if="mode == 'center'" :style="[centerStyle]">
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<u-icon
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@click="close"
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v-if="closeable"
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class="u-close"
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:class="['u-close--' + closeIconPos]"
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:name="closeIcon"
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:color="closeIconColor"
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:size="closeIconSize"
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></u-icon>
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<scroll-view class="u-drawer__scroll-view" scroll-y="true">
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<slot />
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</scroll-view>
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</view>
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<scroll-view class="u-drawer__scroll-view" scroll-y="true" v-else>
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<slot />
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</scroll-view>
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<view @tap="close" class="u-close" :class="['u-close--' + closeIconPos]">
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<u-icon
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v-if="mode != 'center' && closeable"
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:name="closeIcon"
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:color="closeIconColor"
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:size="closeIconSize"
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></u-icon>
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</view>
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</view>
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</view>
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</template>
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<script>
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/**
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* popup 弹窗
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* @description 弹出层容器，用于展示弹窗、信息提示等内容，支持上、下、左、右和中部弹出。组件只提供容器，内部内容由用户自定义
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* @tutorial https://www.uviewui.com/components/popup.html
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* @property {String} mode 弹出方向（默认left）
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* @property {Boolean} mask 是否显示遮罩（默认true）
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* @property {Stringr | Number} length mode=left | 见官网说明（默认auto）
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* @property {Boolean} zoom 是否开启缩放动画，只在mode为center时有效（默认true）
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* @property {Boolean} safe-area-inset-bottom 是否开启底部安全区适配（默认false）
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* @property {Boolean} mask-close-able 点击遮罩是否可以关闭弹出层（默认true）
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* @property {Object} custom-style 用户自定义样式
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* @property {Stringr | Number} negative-top 中部弹出时，往上偏移的值
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* @property {Numberr | String} border-radius 弹窗圆角值（默认0）
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* @property {Numberr | String} z-index 弹出内容的z-index值（默认1075）
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* @property {Boolean} closeable 是否显示关闭图标（默认false）
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* @property {String} close-icon 关闭图标的名称，只能uView的内置图标
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* @property {String} close-icon-pos 自定义关闭图标位置（默认top-right）
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* @property {String} close-icon-color 关闭图标的颜色（默认#909399）
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* @property {Number | String} close-icon-size 关闭图标的大小，单位rpx（默认30）
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* @event {Function} open 弹出层打开
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* @event {Function} close 弹出层收起
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* @example <u-popup v-model="show"><view>出淤泥而不染，濯清涟而不妖</view></u-popup>
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*/
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export default {
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name: 'u-popup',
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props: {
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/**
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* 显示状态
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*/
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show: {
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type: Boolean,
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default: false
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},
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/**
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* 弹出方向，left|right|top|bottom|center
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*/
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mode: {
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type: String,
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default: 'left'
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},
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/**
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* 是否显示遮罩
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*/
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mask: {
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type: Boolean,
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default: true
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},
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// 抽屉的宽度(mode=left|right)，或者高度(mode=top|bottom)，单位rpx，或者"auto"
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// 或者百分比"50%"，表示由内容撑开高度或者宽度
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length: {
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type: [Number, String],
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default: 'auto'
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},
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// 是否开启缩放动画，只在mode=center时有效
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zoom: {
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type: Boolean,
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default: true
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},
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// 是否开启底部安全区适配，开启的话，会在iPhoneX机型底部添加一定的内边距
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safeAreaInsetBottom: {
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type: Boolean,
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default: false
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},
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// 是否可以通过点击遮罩进行关闭
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maskCloseAble: {
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type: Boolean,
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default: true
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},
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// 用户自定义样式
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customStyle: {
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type: Object,
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default() {
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return {};
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}
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},
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value: {
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type: Boolean,
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default: false
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},
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// 此为内部参数，不在文档对外使用，为了解决Picker和keyboard等融合了弹窗的组件
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// 对v-model双向绑定多层调用造成报错不能修改props值的问题
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popup: {
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type: Boolean,
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default: true
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},
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// 显示显示弹窗的圆角，单位rpx
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borderRadius: {
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type: [Number, String],
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default: 0
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},
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zIndex: {
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type: [Number, String],
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default: ''
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},
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// 是否显示关闭图标
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closeable: {
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type: Boolean,
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default: false
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},
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// 关闭图标的名称，只能uView的内置图标
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closeIcon: {
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type: String,
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default: 'close'
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},
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// 自定义关闭图标位置，top-left为左上角，top-right为右上角，bottom-left为左下角，bottom-right为右下角
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closeIconPos: {
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type: String,
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default: 'top-right'
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},
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// 关闭图标的颜色
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closeIconColor: {
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type: String,
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default: '#909399'
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},
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// 关闭图标的大小，单位rpx
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closeIconSize: {
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type: [String, Number],
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default: '30'
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},
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// 宽度，只对左，右，中部弹出时起作用，单位rpx，或者"auto"
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// 或者百分比"50%"，表示由内容撑开高度或者宽度，优先级高于length参数
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width: {
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type: String,
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default: ''
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},
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// 高度，只对上，下，中部弹出时起作用，单位rpx，或者"auto"
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// 或者百分比"50%"，表示由内容撑开高度或者宽度，优先级高于length参数
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height: {
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type: String,
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default: ''
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},
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// 给一个负的margin-top，往上偏移，避免和键盘重合的情况，仅在mode=center时有效
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negativeTop: {
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type: [String, Number],
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default: 0
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},
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// 遮罩的样式，一般用于修改遮罩的透明度
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maskCustomStyle: {
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type: Object,
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default() {
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return {}
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}
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},
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// 遮罩打开或收起的动画过渡时间，单位ms
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duration: {
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type: [String, Number],
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default: 250
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}
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},
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data() {
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return {
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visibleSync: false,
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showDrawer: false,
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timer: null,
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closeFromInner: false, // value的值改变，是发生在内部还是外部
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};
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},
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computed: {
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// 根据mode的位置，设定其弹窗的宽度(mode = left|right)，或者高度(mode = top|bottom)
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style() {
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let style = {};
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// 如果是左边或者上边弹出时，需要给translate设置为负值，用于隐藏
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if (this.mode == 'left' || this.mode == 'right') {
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style = {
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width: this.width ? this.getUnitValue(this.width) : this.getUnitValue(this.length),
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height: '100%',
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transform: `translate3D(${this.mode == 'left' ? '-100%' : '100%'},0px,0px)`
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};
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} else if (this.mode == 'top' || this.mode == 'bottom') {
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style = {
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width: '100%',
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height: this.height ? this.getUnitValue(this.height) : this.getUnitValue(this.length),
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transform: `translate3D(0px,${this.mode == 'top' ? '-100%' : '100%'},0px)`
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};
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}
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style.zIndex = this.uZindex;
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// 如果用户设置了borderRadius值，添加弹窗的圆角
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if (this.borderRadius) {
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switch (this.mode) {
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case 'left':
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style.borderRadius = `0 ${this.borderRadius}rpx ${this.borderRadius}rpx 0`;
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break;
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case 'top':
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style.borderRadius = `0 0 ${this.borderRadius}rpx ${this.borderRadius}rpx`;
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break;
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case 'right':
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style.borderRadius = `${this.borderRadius}rpx 0 0 ${this.borderRadius}rpx`;
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break;
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case 'bottom':
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style.borderRadius = `${this.borderRadius}rpx ${this.borderRadius}rpx 0 0`;
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break;
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default:
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}
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// 不加可能圆角无效
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style.overflow = 'hidden';
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}
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if(this.duration) style.transition = `all ${this.duration / 1000}s linear`;
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return style;
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},
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// 中部弹窗的特有样式
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centerStyle() {
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let style = {};
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style.width = this.width ? this.getUnitValue(this.width) : this.getUnitValue(this.length);
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// 中部弹出的模式，如果没有设置高度，就用auto值，由内容撑开高度
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style.height = this.height ? this.getUnitValue(this.height) : 'auto';
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style.zIndex = this.uZindex;
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style.marginTop = `-${this.$u.addUnit(this.negativeTop)}`;
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if (this.borderRadius) {
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style.borderRadius = `${this.borderRadius}rpx`;
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// 不加可能圆角无效
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style.overflow = 'hidden';
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}
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return style;
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},
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// 计算整理后的z-index值
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uZindex() {
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return this.zIndex ? this.zIndex : this.$u.zIndex.popup;
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}
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},
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watch: {
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value(val) {
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if (val) {
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this.open();
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} else if(!this.closeFromInner) {
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this.close();
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}
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this.closeFromInner = false;
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}
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},
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mounted() {
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// 组件渲染完成时，检查value是否为true，如果是，弹出popup
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this.value && this.open();
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},
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methods: {
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// 判断传入的值，是否带有单位，如果没有，就默认用rpx单位
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getUnitValue(val) {
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if(/(%|px|rpx|auto)$/.test(val)) return val;
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else return val + 'rpx'
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},
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// 遮罩被点击
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maskClick() {
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this.close();
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},
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close() {
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// 标记关闭是内部发生的，否则修改了value值，导致watch中对value检测，导致再执行一遍close
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// 造成@close事件触发两次
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this.closeFromInner = true;
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this.change('showDrawer', 'visibleSync', false);
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},
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// 中部弹出时，需要.u-drawer-content将居中内容，此元素会铺满屏幕，点击需要关闭弹窗
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// 让其只在mode=center时起作用
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modeCenterClose(mode) {
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if (mode != 'center' || !this.maskCloseAble) return;
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this.close();
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},
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open() {
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this.change('visibleSync', 'showDrawer', true);
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},
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// 此处的原理是，关闭时先通过动画隐藏弹窗和遮罩，再移除整个组件
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// 打开时，先渲染组件，延时一定时间再让遮罩和弹窗的动画起作用
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change(param1, param2, status) {
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// 如果this.popup为false，意味着为picker，actionsheet等组件调用了popup组件
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if (this.popup == true) {
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this.$emit('input', status);
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}
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this[param1] = status;
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if(status) {
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// #ifdef H5 || MP
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this.timer = setTimeout(() => {
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this[param2] = status;
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this.$emit(status ? 'open' : 'close');
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}, 50);
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// #endif
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// #ifndef H5 || MP
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this.$nextTick(() => {
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this[param2] = status;
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this.$emit(status ? 'open' : 'close');
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})
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// #endif
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} else {
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this.timer = setTimeout(() => {
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this[param2] = status;
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this.$emit(status ? 'open' : 'close');
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}, this.duration);
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}
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}
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}
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};
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</script>
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<style scoped lang="scss">
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@import "../../libs/css/style.components.scss";
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.u-drawer {
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/* #ifndef APP-NVUE */
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display: block;
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/* #endif */
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position: fixed;
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top: 0;
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left: 0;
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right: 0;
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bottom: 0;
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overflow: hidden;
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}
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.u-drawer-content {
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/* #ifndef APP-NVUE */
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display: block;
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/* #endif */
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position: absolute;
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z-index: 1003;
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transition: all 0.25s linear;
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}
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.u-drawer__scroll-view {
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width: 100%;
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height: 100%;
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}
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.u-drawer-left {
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top: 0;
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bottom: 0;
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left: 0;
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background-color: #ffffff;
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}
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.u-drawer-right {
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right: 0;
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top: 0;
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bottom: 0;
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background-color: #ffffff;
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}
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.u-drawer-top {
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top: 0;
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left: 0;
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right: 0;
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background-color: #ffffff;
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}
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.u-drawer-bottom {
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bottom: 0;
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left: 0;
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right: 0;
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background-color: #ffffff;
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}
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.u-drawer-center {
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@include vue-flex;
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flex-direction: column;
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bottom: 0;
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left: 0;
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right: 0;
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top: 0;
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|
justify-content: center;
|
|
|
align-items: center;
|
|
|
opacity: 0;
|
|
|
z-index: 99999;
|
|
|
}
|
|
|
|
|
|
.u-mode-center-box {
|
|
|
min-width: 100rpx;
|
|
|
min-height: 100rpx;
|
|
|
/* #ifndef APP-NVUE */
|
|
|
display: block;
|
|
|
/* #endif */
|
|
|
position: relative;
|
|
|
background-color: #ffffff;
|
|
|
}
|
|
|
|
|
|
.u-drawer-content-visible.u-drawer-center {
|
|
|
transform: scale(1);
|
|
|
opacity: 1;
|
|
|
}
|
|
|
|
|
|
.u-animation-zoom {
|
|
|
transform: scale(1.15);
|
|
|
}
|
|
|
|
|
|
.u-drawer-content-visible {
|
|
|
transform: translate3D(0px, 0px, 0px) !important;
|
|
|
}
|
|
|
|
|
|
.u-close {
|
|
|
position: absolute;
|
|
|
z-index: 3;
|
|
|
}
|
|
|
|
|
|
.u-close--top-left {
|
|
|
top: 30rpx;
|
|
|
left: 30rpx;
|
|
|
}
|
|
|
|
|
|
.u-close--top-right {
|
|
|
top: 30rpx;
|
|
|
right: 30rpx;
|
|
|
}
|
|
|
|
|
|
.u-close--bottom-left {
|
|
|
bottom: 30rpx;
|
|
|
left: 30rpx;
|
|
|
}
|
|
|
|
|
|
.u-close--bottom-right {
|
|
|
right: 30rpx;
|
|
|
bottom: 30rpx;
|
|
|
}
|
|
|
</style>
|