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<template>
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<view v-if="show" class="uni-noticebar" :style="{ backgroundColor: backgroundColor }" @click="onClick">
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<uni-icons v-if="showIcon === true || showIcon === 'true'" class="uni-noticebar-icon" type="sound"
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:color="color" size="22" />
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<view ref="textBox" class="uni-noticebar__content-wrapper"
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:class="{'uni-noticebar__content-wrapper--scrollable':scrollable, 'uni-noticebar__content-wrapper--single':!scrollable && (single || moreText)}">
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<view :id="elIdBox" class="uni-noticebar__content"
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:class="{'uni-noticebar__content--scrollable':scrollable, 'uni-noticebar__content--single':!scrollable && (single || moreText)}">
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<text :id="elId" ref="animationEle" class="uni-noticebar__content-text"
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:class="{'uni-noticebar__content-text--scrollable':scrollable,'uni-noticebar__content-text--single':!scrollable && (single || showGetMore)}"
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:style="{color:color, width:wrapWidth+'px', 'animationDuration': animationDuration, '-webkit-animationDuration': animationDuration ,animationPlayState: webviewHide?'paused':animationPlayState,'-webkit-animationPlayState':webviewHide?'paused':animationPlayState, animationDelay: animationDelay, '-webkit-animationDelay':animationDelay}">{{text}}</text>
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</view>
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</view>
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<view v-if="showGetMore === true || showGetMore === 'true'" class="uni-noticebar__more uni-cursor-point"
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@click="clickMore">
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<text v-if="moreText.length > 0" :style="{ color: moreColor }" class="uni-noticebar__more-text">{{ moreText }}</text>
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<uni-icons v-else type="right" :color="moreColor" size="16" />
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</view>
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<view class="uni-noticebar-close uni-cursor-point" v-if="(showClose === true || showClose === 'true') && (showGetMore === false || showGetMore === 'false')">
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<uni-icons
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type="closeempty" :color="color" size="16" @click="close" />
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</view>
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</view>
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</template>
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<script>
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// #ifdef APP-NVUE
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const dom = weex.requireModule('dom');
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const animation = weex.requireModule('animation');
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// #endif
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/**
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* NoticeBar 自定义导航栏
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* @description 通告栏组件
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* @tutorial https://ext.dcloud.net.cn/plugin?id=30
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* @property {Number} speed 文字滚动的速度，默认100px/秒
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* @property {String} text 显示文字
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* @property {String} backgroundColor 背景颜色
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* @property {String} color 文字颜色
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* @property {String} moreColor 查看更多文字的颜色
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* @property {String} moreText 设置“查看更多”的文本
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* @property {Boolean} single = [true|false] 是否单行
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* @property {Boolean} scrollable = [true|false] 是否滚动，为true时，NoticeBar为单行
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* @property {Boolean} showIcon = [true|false] 是否显示左侧喇叭图标
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* @property {Boolean} showClose = [true|false] 是否显示左侧关闭按钮
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* @property {Boolean} showGetMore = [true|false] 是否显示右侧查看更多图标，为true时，NoticeBar为单行
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* @event {Function} click 点击 NoticeBar 触发事件
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* @event {Function} close 关闭 NoticeBar 触发事件
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* @event {Function} getmore 点击”查看更多“时触发事件
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*/
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export default {
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name: 'UniNoticeBar',
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emits: ['click', 'getmore', 'close'],
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props: {
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text: {
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type: String,
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default: ''
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},
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moreText: {
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type: String,
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default: ''
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},
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backgroundColor: {
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type: String,
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default: '#FFF9EA'
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},
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speed: {
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// 默认1s滚动100px
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type: Number,
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default: 100
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},
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color: {
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type: String,
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default: '#FF9A43'
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},
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moreColor: {
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type: String,
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default: '#FF9A43'
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},
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single: {
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// 是否单行
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type: [Boolean, String],
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default: false
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},
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scrollable: {
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// 是否滚动，添加后控制单行效果取消
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type: [Boolean, String],
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default: false
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},
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showIcon: {
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// 是否显示左侧icon
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type: [Boolean, String],
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default: false
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},
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showGetMore: {
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// 是否显示右侧查看更多
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type: [Boolean, String],
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default: false
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},
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showClose: {
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// 是否显示左侧关闭按钮
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type: [Boolean, String],
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default: false
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}
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},
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data() {
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const elId = `Uni_${Math.ceil(Math.random() * 10e5).toString(36)}`
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const elIdBox = `Uni_${Math.ceil(Math.random() * 10e5).toString(36)}`
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return {
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textWidth: 0,
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boxWidth: 0,
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wrapWidth: '',
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webviewHide: false,
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// #ifdef APP-NVUE
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stopAnimation: false,
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// #endif
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elId: elId,
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elIdBox: elIdBox,
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show: true,
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animationDuration: 'none',
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animationPlayState: 'paused',
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animationDelay: '0s'
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}
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},
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mounted() {
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// #ifdef APP-PLUS
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var pages = getCurrentPages();
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var page = pages[pages.length - 1];
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var currentWebview = page.$getAppWebview();
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currentWebview.addEventListener('hide', () => {
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this.webviewHide = true
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})
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currentWebview.addEventListener('show', () => {
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this.webviewHide = false
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})
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// #endif
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this.$nextTick(() => {
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this.initSize()
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})
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},
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// #ifdef APP-NVUE
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beforeDestroy() {
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this.stopAnimation = true
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},
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// #endif
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methods: {
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initSize() {
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if (this.scrollable) {
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// #ifndef APP-NVUE
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let query = [],
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boxWidth = 0,
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textWidth = 0;
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let textQuery = new Promise((resolve, reject) => {
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uni.createSelectorQuery()
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// #ifndef MP-ALIPAY
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.in(this)
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// #endif
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.select(`#${this.elId}`)
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.boundingClientRect()
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.exec(ret => {
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this.textWidth = ret[0].width
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resolve()
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})
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})
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let boxQuery = new Promise((resolve, reject) => {
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uni.createSelectorQuery()
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// #ifndef MP-ALIPAY
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.in(this)
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// #endif
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.select(`#${this.elIdBox}`)
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.boundingClientRect()
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.exec(ret => {
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this.boxWidth = ret[0].width
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resolve()
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})
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})
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query.push(textQuery)
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query.push(boxQuery)
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Promise.all(query).then(() => {
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this.animationDuration = `${this.textWidth / this.speed}s`
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this.animationDelay = `-${this.boxWidth / this.speed}s`
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setTimeout(() => {
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this.animationPlayState = 'running'
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}, 1000)
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})
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// #endif
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// #ifdef APP-NVUE
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dom.getComponentRect(this.$refs['animationEle'], (res) => {
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let winWidth = uni.getSystemInfoSync().windowWidth
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this.textWidth = res.size.width
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animation.transition(this.$refs['animationEle'], {
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styles: {
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transform: `translateX(-${winWidth}px)`
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},
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duration: 0,
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timingFunction: 'linear',
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delay: 0
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}, () => {
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if (!this.stopAnimation) {
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animation.transition(this.$refs['animationEle'], {
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styles: {
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transform: `translateX(-${this.textWidth}px)`
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},
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timingFunction: 'linear',
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duration: (this.textWidth - winWidth) / this.speed * 1000,
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delay: 1000
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}, () => {
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if (!this.stopAnimation) {
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this.loopAnimation()
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}
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});
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}
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});
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})
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// #endif
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}
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// #ifdef APP-NVUE
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if (!this.scrollable && (this.single || this.moreText)) {
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dom.getComponentRect(this.$refs['textBox'], (res) => {
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this.wrapWidth = res.size.width
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})
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}
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// #endif
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},
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loopAnimation() {
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// #ifdef APP-NVUE
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animation.transition(this.$refs['animationEle'], {
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styles: {
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transform: `translateX(0px)`
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},
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duration: 0
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}, () => {
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if (!this.stopAnimation) {
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animation.transition(this.$refs['animationEle'], {
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styles: {
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transform: `translateX(-${this.textWidth}px)`
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},
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duration: this.textWidth / this.speed * 1000,
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timingFunction: 'linear',
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delay: 0
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}, () => {
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if (!this.stopAnimation) {
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this.loopAnimation()
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}
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});
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}
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});
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// #endif
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},
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clickMore() {
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this.$emit('getmore')
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},
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close() {
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this.show = false;
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this.$emit('close')
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},
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onClick() {
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this.$emit('click')
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}
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}
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}
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</script>
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<style lang="scss" scoped>
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.uni-noticebar {
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/* #ifndef APP-NVUE */
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display: flex;
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width: 100%;
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box-sizing: border-box;
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/* #endif */
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flex-direction: row;
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align-items: center;
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padding: 10px 12px;
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margin-bottom: 10px;
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}
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.uni-cursor-point {
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/* #ifdef H5 */
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cursor: pointer;
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/* #endif */
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}
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.uni-noticebar-close {
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margin-left: 8px;
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margin-right: 5px;
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}
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.uni-noticebar-icon {
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margin-right: 5px;
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}
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.uni-noticebar__content-wrapper {
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flex: 1;
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flex-direction: column;
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overflow: hidden;
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}
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.uni-noticebar__content-wrapper--single {
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/* #ifndef APP-NVUE */
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line-height: 18px;
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/* #endif */
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}
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.uni-noticebar__content-wrapper--single,
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.uni-noticebar__content-wrapper--scrollable {
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flex-direction: row;
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}
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/* #ifndef APP-NVUE */
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.uni-noticebar__content-wrapper--scrollable {
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position: relative;
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height: 18px;
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}
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/* #endif */
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.uni-noticebar__content--scrollable {
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/* #ifdef APP-NVUE */
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flex: 0;
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/* #endif */
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/* #ifndef APP-NVUE */
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flex: 1;
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display: block;
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overflow: hidden;
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/* #endif */
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}
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.uni-noticebar__content--single {
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/* #ifndef APP-NVUE */
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display: flex;
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flex: none;
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width: 100%;
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justify-content: center;
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/* #endif */
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}
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.uni-noticebar__content-text {
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font-size: 14px;
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line-height: 18px;
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/* #ifndef APP-NVUE */
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word-break: break-all;
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/* #endif */
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}
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.uni-noticebar__content-text--single {
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/* #ifdef APP-NVUE */
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lines: 1;
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/* #endif */
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/* #ifndef APP-NVUE */
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display: block;
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width: 100%;
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white-space: nowrap;
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/* #endif */
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overflow: hidden;
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text-overflow: ellipsis;
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}
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.uni-noticebar__content-text--scrollable {
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/* #ifdef APP-NVUE */
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lines: 1;
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padding-left: 750rpx;
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/* #endif */
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/* #ifndef APP-NVUE */
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position: absolute;
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display: block;
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height: 18px;
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line-height: 18px;
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white-space: nowrap;
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padding-left: 100%;
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animation: notice 10s 0s linear infinite both;
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animation-play-state: paused;
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/* #endif */
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}
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.uni-noticebar__more {
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/* #ifndef APP-NVUE */
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display: inline-flex;
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/* #endif */
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flex-direction: row;
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flex-wrap: nowrap;
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align-items: center;
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padding-left: 5px;
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}
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.uni-noticebar__more-text {
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font-size: 14px;
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}
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@keyframes notice {
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100% {
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transform: translate3d(-100%, 0, 0);
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}
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}
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</style>
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