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<!-- 公告栏组件 -->
<template>
<view
v-if="show"
class="uni-noticebar"
:style="{ backgroundColor: backgroundColor }"
@click="onClick"
>
<slot name="icon">
<uni-icons
v-if="showIcon === true || showIcon === 'true'"
class="uni-noticebar-icon"
type="sound"
:color="color"
size="22"
/>
</slot>
<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 || showGetMore),
}"
: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 uni-cursor-point"
@click="clickMore"
>
<text
v-if="moreText.length > 0"
:style="{ color: moreColor }"
class="uni-noticebar__more-text"
>
{{ moreText }}
</text>
<uni-icons v-else type="right" :color="moreColor" size="16" />
</view>
<view
class="uni-noticebar-close uni-cursor-point"
v-if="
(showClose === true || showClose === 'true') &&
(showGetMore === false || showGetMore === 'false')
"
>
<view @click="close">
<slot name="close">
<uni-icons type="closeempty" :color="color" size="16" />
</slot>
</view>
</view>
</view>
</template>
<script>
import sheep from '@/sheep';
// #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',
emits: ['click', 'getmore', 'close'],
props: {
text: {
type: String,
default: '',
},
moreText: {
type: String,
default: '',
},
backgroundColor: {
type: String,
default: '',
},
speed: {
// 默认1s滚动100px
type: Number,
default: 100,
},
color: {
type: String,
default: 'var(--ui-BG-Main)',
},
moreColor: {
type: String,
default: '#FF9A43',
},
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.$refs['animationEle'], (res) => {
let winWidth = sheep.$platform.device.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: 10px 12px;
// margin-bottom: 10px;
}
.uni-cursor-point {
/* #ifdef H5 */
cursor: pointer;
/* #endif */
}
.uni-noticebar-close {
margin-left: 8px;
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>