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Vue

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<template>
<view v-if="show" class="uni-noticebar" :style="{ backgroundColor: backgroundColor }" @click="onClick">
<!-- #ifdef MP-ALIPAY -->
<view v-if="showClose === true || showClose === 'true'" class="uni-noticebar-close" @click="close">
<uni-icons type="closeempty" :color="color" size="12" />
</view>
<view v-if="showIcon === true || showIcon === 'true'" class="uni-noticebar-icon">
<uni-icons type="sound" :color="color" size="14" />
</view>
<!-- #endif -->
<!-- #ifndef MP-ALIPAY -->
<uni-icons v-if="showClose === true || showClose === 'true'" class="uni-noticebar-close" type="closeempty" :color="color"
size="12" @click="close" />
<uni-icons v-if="showIcon === true || showIcon === 'true'" class="uni-noticebar-icon" type="sound" :color="color"
size="14" />
<!-- #endif -->
<view ref="textBox" class="uni-noticebar__content-wrapper" :class="{'uni-noticebar__content-wrapper--scrollable':scrollable, 'uni-noticebar__content-wrapper--single':!scrollable && (single || moreText)}">
<view :id="elIdBox" class="uni-noticebar__content" :class="{'uni-noticebar__content--scrollable':scrollable, 'uni-noticebar__content--single':!scrollable && (single || moreText)}">
<text :id="elId" ref="animationEle" class="uni-noticebar__content-text" :class="{'uni-noticebar__content-text--scrollable':scrollable,'uni-noticebar__content-text--single':!scrollable && (single || moreText)}"
: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>
</view>
</view>
<view v-if="showGetMore === true || showGetMore === 'true'" class="uni-noticebar__more" @click="clickMore">
<text v-if="moreText" :style="{ color: moreColor }" class="uni-noticebar__more-text">{{ moreText }}</text>
<uni-icons type="arrowright" :color="moreColor" size="14" />
</view>
</view>
</template>
<script>
import uniIcons from '../uni-icons/uni-icons.vue'
// #ifdef APP-NVUE
const dom = weex.requireModule('dom');
const animation = weex.requireModule('animation');
// #endif
/**
* NoticeBar 自定义导航栏
* @description 通告栏组件
* @tutorial https://ext.dcloud.net.cn/plugin?id=30
* @property {Number} speed 文字滚动的速度默认100px/秒
* @property {String} text 显示文字
* @property {String} backgroundColor 背景颜色
* @property {String} color 文字颜色
* @property {String} moreColor 查看更多文字的颜色
* @property {String} moreText 设置“查看更多”的文本
* @property {Boolean} single = [true|false] 是否单行
* @property {Boolean} scrollable = [true|false] 是否滚动为true时NoticeBar为单行
* @property {Boolean} showIcon = [true|false] 是否显示左侧喇叭图标
* @property {Boolean} showClose = [true|false] 是否显示左侧关闭按钮
* @property {Boolean} showGetMore = [true|false] 是否显示右侧查看更多图标为true时NoticeBar为单行
* @event {Function} click 点击 NoticeBar 触发事件
* @event {Function} close 关闭 NoticeBar 触发事件
* @event {Function} getmore 点击”查看更多“时触发事件
*/
export default {
name: 'UniNoticeBar',
components: {
uniIcons
},
props: {
text: {
type: String,
default: ''
},
moreText: {
type: String,
default: ''
},
backgroundColor: {
type: String,
default: '#fffbe8'
},
speed: {
// 默认1s滚动100px
type: Number,
default: 100
},
color: {
type: String,
default: '#de8c17'
},
moreColor: {
type: String,
default: '#999999'
},
single: {
// 是否单行
type: [Boolean, String],
default: false
},
scrollable: {
// 是否滚动,添加后控制单行效果取消
type: [Boolean, String],
default: false
},
showIcon: {
// 是否显示左侧icon
type: [Boolean, String],
default: false
},
showGetMore: {
// 是否显示右侧查看更多
type: [Boolean, String],
default: false
},
showClose: {
// 是否显示左侧关闭按钮
type: [Boolean, String],
default: false
}
},
data() {
const elId = `Uni_${Math.ceil(Math.random() * 10e5).toString(36)}`
const elIdBox = `Uni_${Math.ceil(Math.random() * 10e5).toString(36)}`
return {
textWidth: 0,
boxWidth: 0,
wrapWidth: '',
webviewHide: false,
// #ifdef APP-NVUE
stopAnimation: false,
// #endif
elId: elId,
elIdBox: elIdBox,
show: true,
animationDuration: 'none',
animationPlayState: 'paused',
animationDelay: '0s'
}
},
mounted() {
// #ifdef APP-PLUS
var pages = getCurrentPages();
var page = pages[pages.length - 1];
var currentWebview = page.$getAppWebview();
currentWebview.addEventListener('hide',()=>{
this.webviewHide = true
})
currentWebview.addEventListener('show',()=>{
this.webviewHide = false
})
// #endif
this.$nextTick(() => {
this.initSize()
})
},
// #ifdef APP-NVUE
beforeDestroy() {
this.stopAnimation = true
},
// #endif
methods: {
initSize() {
if (this.scrollable) {
// #ifndef APP-NVUE
let query = [],
boxWidth = 0,
textWidth = 0;
let textQuery = new Promise((resolve, reject) => {
uni.createSelectorQuery()
// #ifndef MP-ALIPAY
.in(this)
// #endif
.select(`#${this.elId}`)
.boundingClientRect()
.exec(ret => {
this.textWidth = ret[0].width
resolve()
})
})
let boxQuery = new Promise((resolve, reject) => {
uni.createSelectorQuery()
// #ifndef MP-ALIPAY
.in(this)
// #endif
.select(`#${this.elIdBox}`)
.boundingClientRect()
.exec(ret => {
this.boxWidth = ret[0].width
resolve()
})
})
query.push(textQuery)
query.push(boxQuery)
Promise.all(query).then(() => {
this.animationDuration = `${this.textWidth / this.speed}s`
this.animationDelay = `-${this.boxWidth / this.speed}s`
setTimeout(() => {
this.animationPlayState = 'running'
}, 1000)
})
// #endif
// #ifdef APP-NVUE
dom.getComponentRect(this.$refs['animationEle'], (res) => {
let winWidth = uni.getSystemInfoSync().windowWidth
this.textWidth = res.size.width
animation.transition(this.$refs['animationEle'], {
styles: {
transform: `translateX(-${winWidth}px)`
},
duration: 0,
timingFunction: 'linear',
delay: 0
}, () => {
if (!this.stopAnimation) {
animation.transition(this.$refs['animationEle'], {
styles: {
transform: `translateX(-${this.textWidth}px)`
},
timingFunction: 'linear',
duration: (this.textWidth - winWidth) / this.speed * 1000,
delay: 1000
}, () => {
if (!this.stopAnimation) {
this.loopAnimation()
}
});
}
});
})
// #endif
}
// #ifdef APP-NVUE
if (!this.scrollable && (this.single || this.moreText)) {
dom.getComponentRect(this.$refs['textBox'], (res) => {
this.wrapWidth = res.size.width
})
}
// #endif
},
loopAnimation() {
// #ifdef APP-NVUE
animation.transition(this.$refs['animationEle'], {
styles: {
transform: `translateX(0px)`
},
duration: 0
}, () => {
if (!this.stopAnimation) {
animation.transition(this.$refs['animationEle'], {
styles: {
transform: `translateX(-${this.textWidth}px)`
},
duration: this.textWidth / this.speed * 1000,
timingFunction: 'linear',
delay: 0
}, () => {
if (!this.stopAnimation) {
this.loopAnimation()
}
});
}
});
// #endif
},
clickMore() {
this.$emit('getmore')
},
close() {
this.show = false;
this.$emit('close')
},
onClick() {
this.$emit('click')
}
}
}
</script>
<style lang="scss" scoped>
.uni-noticebar {
/* #ifndef APP-NVUE */
display: flex;
width: 100%;
box-sizing: border-box;
/* #endif */
flex-direction: row;
align-items: center;
padding: 6px 12px;
margin-bottom: 10px;
}
.uni-noticebar-close {
margin-right: 5px;
}
.uni-noticebar-icon {
margin-right: 5px;
}
.uni-noticebar__content-wrapper {
flex: 1;
flex-direction: column;
overflow: hidden;
}
.uni-noticebar__content-wrapper--single {
/* #ifndef APP-NVUE */
line-height: 18px;
/* #endif */
}
.uni-noticebar__content-wrapper--single,
.uni-noticebar__content-wrapper--scrollable {
flex-direction: row;
}
/* #ifndef APP-NVUE */
.uni-noticebar__content-wrapper--scrollable {
position: relative;
height: 18px;
}
/* #endif */
.uni-noticebar__content--scrollable {
/* #ifdef APP-NVUE */
flex: 0;
/* #endif */
/* #ifndef APP-NVUE */
flex: 1;
display: block;
overflow: hidden;
/* #endif */
}
.uni-noticebar__content--single {
/* #ifndef APP-NVUE */
display: flex;
flex: none;
width: 100%;
justify-content: center;
/* #endif */
}
.uni-noticebar__content-text {
font-size: 14px;
line-height: 18px;
/* #ifndef APP-NVUE */
word-break: break-all;
/* #endif */
}
.uni-noticebar__content-text--single {
/* #ifdef APP-NVUE */
lines: 1;
/* #endif */
/* #ifndef APP-NVUE */
display: block;
width: 100%;
white-space: nowrap;
/* #endif */
overflow: hidden;
text-overflow: ellipsis;
}
.uni-noticebar__content-text--scrollable {
/* #ifdef APP-NVUE */
lines: 1;
padding-left: 750rpx;
/* #endif */
/* #ifndef APP-NVUE */
position: absolute;
display: block;
height: 18px;
line-height: 18px;
white-space: nowrap;
padding-left: 100%;
animation: notice 10s 0s linear infinite both;
animation-play-state: paused;
/* #endif */
}
.uni-noticebar__more {
/* #ifndef APP-NVUE */
display: inline-flex;
/* #endif */
flex-direction: row;
flex-wrap: nowrap;
align-items: center;
padding-left: 5px;
}
.uni-noticebar__more-text {
font-size: 14px;
}
@keyframes notice {
100% {
transform: translate3d(-100%, 0, 0);
}
}
</style>