331 lines
9.1 KiB
Vue
331 lines
9.1 KiB
Vue
|
<template>
|
|||
|
|
<view
|
|||
|
|
class="u-notice"
|
|||
|
|
@tap="clickHandler"
|
|||
|
|
>
|
|||
|
|
<slot name="icon">
|
|||
|
|
<view
|
|||
|
|
class="u-notice__left-icon"
|
|||
|
|
v-if="icon"
|
|||
|
|
>
|
|||
|
|
<u-icon
|
|||
|
|
:name="icon"
|
|||
|
|
:color="color"
|
|||
|
|
size="19"
|
|||
|
|
></u-icon>
|
|||
|
|
</view>
|
|||
|
|
</slot>
|
|||
|
|
<view
|
|||
|
|
class="u-notice__content"
|
|||
|
|
ref="u-notice__content"
|
|||
|
|
>
|
|||
|
|
<view
|
|||
|
|
ref="u-notice__content__text"
|
|||
|
|
class="u-notice__content__text"
|
|||
|
|
:style="[animationStyle]"
|
|||
|
|
>
|
|||
|
|
<text
|
|||
|
|
v-for="(item, index) in innerText"
|
|||
|
|
:key="index"
|
|||
|
|
:style="[textStyle]"
|
|||
|
|
>{{item}}</text>
|
|||
|
|
</view>
|
|||
|
|
</view>
|
|||
|
|
<view
|
|||
|
|
class="u-notice__right-icon"
|
|||
|
|
v-if="['link', 'closable'].includes(mode)"
|
|||
|
|
>
|
|||
|
|
<u-icon
|
|||
|
|
v-if="mode === 'link'"
|
|||
|
|
name="arrow-right"
|
|||
|
|
:size="17"
|
|||
|
|
:color="color"
|
|||
|
|
></u-icon>
|
|||
|
|
<u-icon
|
|||
|
|
v-if="mode === 'closable'"
|
|||
|
|
@click="close"
|
|||
|
|
name="close"
|
|||
|
|
:size="16"
|
|||
|
|
:color="color"
|
|||
|
|
></u-icon>
|
|||
|
|
</view>
|
|||
|
|
</view>
|
|||
|
|
</template>
|
|||
|
|
<script>
|
|||
|
|
import props from './props.js';
|
|||
|
|
// #ifdef APP-NVUE
|
|||
|
|
const animation = uni.requireNativePlugin('animation')
|
|||
|
|
const dom = uni.requireNativePlugin('dom')
|
|||
|
|
// #endif
|
|||
|
|
/**
|
|||
|
|
* RowNotice 滚动通知中的水平滚动模式
|
|||
|
|
* @description 水平滚动
|
|||
|
|
* @tutorial https://www.uviewui.com/components/noticeBar.html
|
|||
|
|
* @property {String | Number} text 显示的内容，字符串
|
|||
|
|
* @property {String} icon 是否显示左侧的音量图标 (默认 'volume' )
|
|||
|
|
* @property {String} mode 通告模式，link-显示右箭头，closable-显示右侧关闭图标
|
|||
|
|
* @property {String} color 文字颜色，各图标也会使用文字颜色 (默认 '#f9ae3d' )
|
|||
|
|
* @property {String} bgColor 背景颜色 (默认 ''#fdf6ec' )
|
|||
|
|
* @property {String | Number} fontSize 字体大小，单位px (默认 14 )
|
|||
|
|
* @property {String | Number} speed 水平滚动时的滚动速度，即每秒滚动多少px(rpx)，这有利于控制文字无论多少时，都能有一个恒定的速度 (默认 80 )
|
|||
|
|
*
|
|||
|
|
* @event {Function} click 点击通告文字触发
|
|||
|
|
* @event {Function} close 点击右侧关闭图标触发
|
|||
|
|
* @example
|
|||
|
|
*/
|
|||
|
|
export default {
|
|||
|
|
name: 'u-row-notice',
|
|||
|
|
mixins: [uni.$u.mpMixin, uni.$u.mixin,props],
|
|||
|
|
data() {
|
|||
|
|
return {
|
|||
|
|
animationDuration: '0', // 动画执行时间
|
|||
|
|
animationPlayState: 'paused', // 动画的开始和结束执行
|
|||
|
|
// nvue下，内容发生变化，导致滚动宽度也变化，需要标志为是否需要重新计算宽度
|
|||
|
|
// 不能在内容变化时直接重新计算，因为nvue的animation模块上一次的滚动不是刚好结束，会有影响
|
|||
|
|
nvueInit: true,
|
|||
|
|
show: true
|
|||
|
|
};
|
|||
|
|
},
|
|||
|
|
watch: {
|
|||
|
|
text: {
|
|||
|
|
immediate: true,
|
|||
|
|
handler(newValue, oldValue) {
|
|||
|
|
// #ifdef APP-NVUE
|
|||
|
|
this.nvueInit = true
|
|||
|
|
// #endif
|
|||
|
|
// #ifndef APP-NVUE
|
|||
|
|
this.vue()
|
|||
|
|
// #endif
|
|||
|
|
|
|||
|
|
if(!uni.$u.test.string(newValue)) {
|
|||
|
|
uni.$u.error('noticebar组件direction为row时，要求text参数为字符串形式')
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
fontSize() {
|
|||
|
|
// #ifdef APP-NVUE
|
|||
|
|
this.nvueInit = true
|
|||
|
|
// #endif
|
|||
|
|
// #ifndef APP-NVUE
|
|||
|
|
this.vue()
|
|||
|
|
// #endif
|
|||
|
|
},
|
|||
|
|
speed() {
|
|||
|
|
// #ifdef APP-NVUE
|
|||
|
|
this.nvueInit = true
|
|||
|
|
// #endif
|
|||
|
|
// #ifndef APP-NVUE
|
|||
|
|
this.vue()
|
|||
|
|
// #endif
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
computed: {
|
|||
|
|
// 文字内容的样式
|
|||
|
|
textStyle() {
|
|||
|
|
let style = {}
|
|||
|
|
style.color = this.color
|
|||
|
|
style.fontSize = uni.$u.addUnit(this.fontSize)
|
|||
|
|
return style
|
|||
|
|
},
|
|||
|
|
animationStyle() {
|
|||
|
|
let style = {}
|
|||
|
|
style.animationDuration = this.animationDuration
|
|||
|
|
style.animationPlayState = this.animationPlayState
|
|||
|
|
return style
|
|||
|
|
},
|
|||
|
|
// 内部对用户传入的数据进一步分割，放到多个text标签循环，否则如果用户传入的字符串很长（100个字符以上）
|
|||
|
|
// 放在一个text标签中进行滚动，在低端安卓机上，动画可能会出现抖动现象，需要分割到多个text中可解决此问题
|
|||
|
|
innerText() {
|
|||
|
|
let result = [],
|
|||
|
|
// 每组text标签的字符长度
|
|||
|
|
len = 20
|
|||
|
|
const textArr = this.text.split('')
|
|||
|
|
for (let i = 0; i < textArr.length; i += len) {
|
|||
|
|
// 对拆分的后的text进行slice分割，得到的为数组再进行join拼接为字符串
|
|||
|
|
result.push(textArr.slice(i, i + len).join(''))
|
|||
|
|
}
|
|||
|
|
return result
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
mounted() {
|
|||
|
|
// #ifdef APP-PLUS
|
|||
|
|
// 在APP上(含nvue)，监听当前webview是否处于隐藏状态(进入下一页时即为hide状态)
|
|||
|
|
// 如果webivew隐藏了，为了节省性能的损耗，应停止动画的执行，同时也是为了保持进入下一页返回后，滚动位置保持不变
|
|||
|
|
var pages = getCurrentPages()
|
|||
|
|
var page = pages[pages.length - 1]
|
|||
|
|
var currentWebview = page.$getAppWebview()
|
|||
|
|
currentWebview.addEventListener('hide', () => {
|
|||
|
|
this.webviewHide = true
|
|||
|
|
})
|
|||
|
|
currentWebview.addEventListener('show', () => {
|
|||
|
|
this.webviewHide = false
|
|||
|
|
})
|
|||
|
|
// #endif
|
|||
|
|
|
|||
|
|
this.init()
|
|||
|
|
},
|
|||
|
|
methods: {
|
|||
|
|
init() {
|
|||
|
|
// #ifdef APP-NVUE
|
|||
|
|
this.nvue()
|
|||
|
|
// #endif
|
|||
|
|
|
|||
|
|
// #ifndef APP-NVUE
|
|||
|
|
this.vue()
|
|||
|
|
// #endif
|
|||
|
|
|
|||
|
|
if(!uni.$u.test.string(this.text)) {
|
|||
|
|
uni.$u.error('noticebar组件direction为row时，要求text参数为字符串形式')
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
// vue版处理
|
|||
|
|
async vue() {
|
|||
|
|
// #ifndef APP-NVUE
|
|||
|
|
let boxWidth = 0,
|
|||
|
|
textWidth = 0
|
|||
|
|
// 进行一定的延时
|
|||
|
|
await uni.$u.sleep()
|
|||
|
|
// 查询盒子和文字的宽度
|
|||
|
|
textWidth = (await this.$uGetRect('.u-notice__content__text')).width
|
|||
|
|
boxWidth = (await this.$uGetRect('.u-notice__content')).width
|
|||
|
|
// 根据t=s/v(时间=路程/速度)，这里为何不需要加上#u-notice-box的宽度，因为中设置了.u-notice-content样式中设置了padding-left: 100%
|
|||
|
|
// 恰巧计算出来的结果中已经包含了#u-notice-box的宽度
|
|||
|
|
this.animationDuration = `${textWidth / uni.$u.getPx(this.speed)}s`
|
|||
|
|
// 这里必须这样开始动画，否则在APP上动画速度不会改变
|
|||
|
|
this.animationPlayState = 'paused'
|
|||
|
|
setTimeout(() => {
|
|||
|
|
this.animationPlayState = 'running'
|
|||
|
|
}, 10)
|
|||
|
|
// #endif
|
|||
|
|
},
|
|||
|
|
// nvue版处理
|
|||
|
|
async nvue() {
|
|||
|
|
// #ifdef APP-NVUE
|
|||
|
|
this.nvueInit = false
|
|||
|
|
let boxWidth = 0,
|
|||
|
|
textWidth = 0
|
|||
|
|
// 进行一定的延时
|
|||
|
|
await uni.$u.sleep()
|
|||
|
|
// 查询盒子和文字的宽度
|
|||
|
|
textWidth = (await this.getNvueRect('u-notice__content__text')).width
|
|||
|
|
boxWidth = (await this.getNvueRect('u-notice__content')).width
|
|||
|
|
// 将文字移动到盒子的右边沿，之所以需要这么做，是因为nvue不支持100%单位，否则可以通过css设置
|
|||
|
|
animation.transition(this.$refs['u-notice__content__text'], {
|
|||
|
|
styles: {
|
|||
|
|
transform: `translateX(${boxWidth}px)`
|
|||
|
|
},
|
|||
|
|
}, () => {
|
|||
|
|
// 如果非禁止动画，则开始滚动
|
|||
|
|
!this.stopAnimation && this.loopAnimation(textWidth, boxWidth)
|
|||
|
|
});
|
|||
|
|
// #endif
|
|||
|
|
},
|
|||
|
|
loopAnimation(textWidth, boxWidth) {
|
|||
|
|
// #ifdef APP-NVUE
|
|||
|
|
animation.transition(this.$refs['u-notice__content__text'], {
|
|||
|
|
styles: {
|
|||
|
|
// 目标移动终点为-textWidth，也即当文字的最右边贴到盒子的左边框的位置
|
|||
|
|
transform: `translateX(-${textWidth}px)`
|
|||
|
|
},
|
|||
|
|
// 滚动时间的计算为，时间 = 路程(boxWidth + textWidth) / 速度，最后转为毫秒
|
|||
|
|
duration: (boxWidth + textWidth) / uni.$u.getPx(this.speed) * 1000,
|
|||
|
|
delay: 10
|
|||
|
|
}, () => {
|
|||
|
|
animation.transition(this.$refs['u-notice__content__text'], {
|
|||
|
|
styles: {
|
|||
|
|
// 重新将文字移动到盒子的右边沿
|
|||
|
|
transform: `translateX(${this.stopAnimation ? 0 : boxWidth}px)`
|
|||
|
|
},
|
|||
|
|
}, () => {
|
|||
|
|
// 如果非禁止动画，则继续下一轮滚动
|
|||
|
|
if (!this.stopAnimation) {
|
|||
|
|
// 判断是否需要初始化计算尺寸
|
|||
|
|
if (this.nvueInit) {
|
|||
|
|
this.nvue()
|
|||
|
|
} else {
|
|||
|
|
this.loopAnimation(textWidth, boxWidth)
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
})
|
|||
|
|
// #endif
|
|||
|
|
},
|
|||
|
|
getNvueRect(el) {
|
|||
|
|
// #ifdef APP-NVUE
|
|||
|
|
// 返回一个promise
|
|||
|
|
return new Promise(resolve => {
|
|||
|
|
dom.getComponentRect(this.$refs[el], (res) => {
|
|||
|
|
resolve(res.size)
|
|||
|
|
})
|
|||
|
|
})
|
|||
|
|
// #endif
|
|||
|
|
},
|
|||
|
|
// 点击通告栏
|
|||
|
|
clickHandler(index) {
|
|||
|
|
this.$emit('click')
|
|||
|
|
},
|
|||
|
|
// 点击右侧按钮，需要判断点击的是关闭图标还是箭头图标
|
|||
|
|
close() {
|
|||
|
|
this.$emit('close')
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
// #ifdef APP-NVUE
|
|||
|
|
beforeDestroy() {
|
|||
|
|
this.stopAnimation = true
|
|||
|
|
},
|
|||
|
|
// #endif
|
|||
|
|
};
|
|||
|
|
</script>
|
|||
|
|
|
|||
|
|
<style lang="scss" scoped>
|
|||
|
|
@import "../../libs/css/components.scss";
|
|||
|
|
|
|||
|
|
.u-notice {
|
|||
|
|
@include flex;
|
|||
|
|
align-items: center;
|
|||
|
|
justify-content: space-between;
|
|||
|
|
|
|||
|
|
&__left-icon {
|
|||
|
|
align-items: center;
|
|||
|
|
margin-right: 5px;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
&__right-icon {
|
|||
|
|
margin-left: 5px;
|
|||
|
|
align-items: center;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
&__content {
|
|||
|
|
text-align: right;
|
|||
|
|
flex: 1;
|
|||
|
|
@include flex;
|
|||
|
|
flex-wrap: nowrap;
|
|||
|
|
overflow: hidden;
|
|||
|
|
|
|||
|
|
&__text {
|
|||
|
|
font-size: 14px;
|
|||
|
|
color: $u-warning;
|
|||
|
|
/* #ifndef APP-NVUE */
|
|||
|
|
// 这一句很重要，为了能让滚动左右连接起来
|
|||
|
|
padding-left: 100%;
|
|||
|
|
word-break: keep-all;
|
|||
|
|
white-space: nowrap;
|
|||
|
|
animation: u-loop-animation 10s linear infinite both;
|
|||
|
|
/* #endif */
|
|||
|
|
@include flex(row);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
@keyframes u-loop-animation {
|
|||
|
|
0% {
|
|||
|
|
transform: translate3d(0, 0, 0);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
100% {
|
|||
|
|
transform: translate3d(-100%, 0, 0);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
</style>
|