mirror of
https://gitee.com/huangge1199_admin/vue-pro.git
synced 2024-11-26 01:01:52 +08:00
225 lines
6.0 KiB
Vue
225 lines
6.0 KiB
Vue
<template>
|
||
<view
|
||
class="u-scroll-list"
|
||
ref="u-scroll-list"
|
||
>
|
||
<!-- #ifdef APP-NVUE -->
|
||
<!-- nvue使用bindingX实现，以得到更好的性能 -->
|
||
<scroller
|
||
class="u-scroll-list__scroll-view"
|
||
ref="u-scroll-list__scroll-view"
|
||
scroll-direction="horizontal"
|
||
:show-scrollbar="false"
|
||
:offset-accuracy="1"
|
||
@scroll="nvueScrollHandler"
|
||
>
|
||
<view class="u-scroll-list__scroll-view__content">
|
||
<slot />
|
||
</view>
|
||
</scroller>
|
||
<!-- #endif -->
|
||
<!-- #ifndef APP-NVUE -->
|
||
<!-- #ifdef MP-WEIXIN || APP-VUE || H5 || MP-QQ -->
|
||
<!-- 以上平台，支持wxs -->
|
||
<scroll-view
|
||
class="u-scroll-list__scroll-view"
|
||
scroll-x
|
||
@scroll="wxs.scroll"
|
||
@scrolltoupper="wxs.scrolltoupper"
|
||
@scrolltolower="wxs.scrolltolower"
|
||
:data-scrollWidth="scrollWidth"
|
||
:data-barWidth="$u.getPx(indicatorBarWidth)"
|
||
:data-indicatorWidth="$u.getPx(indicatorWidth)"
|
||
:show-scrollbar="false"
|
||
:upper-threshold="0"
|
||
:lower-threshold="0"
|
||
>
|
||
<!-- #endif -->
|
||
<!-- #ifndef APP-NVUE || MP-WEIXIN || H5 || APP-VUE || MP-QQ -->
|
||
<!-- 非以上平台，只能使用普通js实现 -->
|
||
<scroll-view
|
||
class="u-scroll-list__scroll-view"
|
||
scroll-x
|
||
@scroll="scrollHandler"
|
||
@scrolltoupper="scrolltoupperHandler"
|
||
@scrolltolower="scrolltolowerHandler"
|
||
:show-scrollbar="false"
|
||
:upper-threshold="0"
|
||
:lower-threshold="0"
|
||
>
|
||
<!-- #endif -->
|
||
<view class="u-scroll-list__scroll-view__content">
|
||
<slot />
|
||
</view>
|
||
</scroll-view>
|
||
<!-- #endif -->
|
||
<view
|
||
class="u-scroll-list__indicator"
|
||
v-if="indicator"
|
||
:style="[$u.addStyle(indicatorStyle)]"
|
||
>
|
||
<view
|
||
class="u-scroll-list__indicator__line"
|
||
:style="[lineStyle]"
|
||
>
|
||
<view
|
||
class="u-scroll-list__indicator__line__bar"
|
||
:style="[barStyle]"
|
||
ref="u-scroll-list__indicator__line__bar"
|
||
></view>
|
||
</view>
|
||
</view>
|
||
</view>
|
||
</template>
|
||
|
||
<script
|
||
src="./scrollWxs.wxs"
|
||
module="wxs"
|
||
lang="wxs"
|
||
></script>
|
||
|
||
<script>
|
||
/**
|
||
* scrollList 横向滚动列表
|
||
* @description 该组件一般用于同时展示多个商品、分类的场景，也可以完成左右滑动的列表。
|
||
* @tutorial https://www.uviewui.com/components/scrollList.html
|
||
* @property {String | Number} indicatorWidth 指示器的整体宽度 (默认 50 )
|
||
* @property {String | Number} indicatorBarWidth 滑块的宽度 (默认 20 )
|
||
* @property {Boolean} indicator 是否显示面板指示器 (默认 true )
|
||
* @property {String} indicatorColor 指示器非激活颜色 (默认 '#f2f2f2' )
|
||
* @property {String} indicatorActiveColor 指示器的激活颜色 (默认 '#3c9cff' )
|
||
* @property {String | Object} indicatorStyle 指示器样式，可通过bottom，left，right进行定位
|
||
* @event {Function} left 滑动到左边时触发
|
||
* @event {Function} right 滑动到右边时触发
|
||
* @example
|
||
*/
|
||
// #ifdef APP-NVUE
|
||
const dom = uni.requireNativePlugin('dom')
|
||
import nvueMixin from "./nvue.js"
|
||
// #endif
|
||
import props from './props.js';
|
||
export default {
|
||
name: 'u-scroll-list',
|
||
mixins: [uni.$u.mpMixin, uni.$u.mixin, props],
|
||
// #ifdef APP-NVUE
|
||
mixins: [uni.$u.mpMixin, uni.$u.mixin, nvueMixin, props],
|
||
// #endif
|
||
data() {
|
||
return {
|
||
scrollInfo: {
|
||
scrollLeft: 0,
|
||
scrollWidth: 0
|
||
},
|
||
scrollWidth: 0
|
||
}
|
||
},
|
||
computed: {
|
||
// 指示器为线型的样式
|
||
barStyle() {
|
||
const style = {}
|
||
// #ifndef APP-NVUE || MP-WEIXIN || H5 || APP-VUE || MP-QQ
|
||
// 此为普通js方案，只有在非nvue和不支持wxs方案的端才使用、
|
||
// 此处的计算理由为：scroll-view的滚动距离与目标滚动距离(scroll-view的实际宽度减去包裹元素的宽度)之比，等于滑块当前移动距离与总需
|
||
// 滑动距离(指示器的总宽度减去滑块宽度)的比值
|
||
const scrollLeft = this.scrollInfo.scrollLeft,
|
||
scrollWidth = this.scrollInfo.scrollWidth,
|
||
barAllMoveWidth = this.indicatorWidth - this.indicatorBarWidth
|
||
const x = scrollLeft / (scrollWidth - this.scrollWidth) * barAllMoveWidth
|
||
style.transform = `translateX(${ x }px)`
|
||
// #endif
|
||
// 设置滑块的宽度和背景色，是每个平台都需要的
|
||
style.width = uni.$u.addUnit(this.indicatorBarWidth)
|
||
style.backgroundColor = this.indicatorActiveColor
|
||
return style
|
||
},
|
||
lineStyle() {
|
||
const style = {}
|
||
// 指示器整体的样式，需要设置其宽度和背景色
|
||
style.width = uni.$u.addUnit(this.indicatorWidth)
|
||
style.backgroundColor = this.indicatorColor
|
||
return style
|
||
}
|
||
},
|
||
mounted() {
|
||
this.init()
|
||
},
|
||
methods: {
|
||
init() {
|
||
this.getComponentWidth()
|
||
},
|
||
// #ifndef APP-NVUE || MP-WEIXIN || H5 || APP-VUE || MP-QQ
|
||
// scroll-view触发滚动事件
|
||
scrollHandler(e) {
|
||
this.scrollInfo = e.detail
|
||
},
|
||
scrolltoupperHandler() {
|
||
this.scrollEvent('left')
|
||
this.scrollInfo.scrollLeft = 0
|
||
},
|
||
scrolltolowerHandler() {
|
||
this.scrollEvent('right')
|
||
// 在普通js方案中，滚动到右边时，通过设置this.scrollInfo，模拟出滚动到右边的情况
|
||
// 因为上方是用过computed计算的，设置后，会自动调整滑块的位置
|
||
this.scrollInfo.scrollLeft = uni.$u.getPx(this.indicatorWidth) - uni.$u.getPx(this.indicatorBarWidth)
|
||
},
|
||
// #endif
|
||
//
|
||
scrollEvent(status) {
|
||
this.$emit(status)
|
||
},
|
||
// 获取组件的宽度
|
||
async getComponentWidth() {
|
||
// 延时一定时间，以获取dom尺寸
|
||
await uni.$u.sleep(30)
|
||
// #ifndef APP-NVUE
|
||
this.$uGetRect('.u-scroll-list').then(size => {
|
||
this.scrollWidth = size.width
|
||
})
|
||
// #endif
|
||
|
||
// #ifdef APP-NVUE
|
||
const ref = this.$refs['u-scroll-list']
|
||
ref && dom.getComponentRect(ref, (res) => {
|
||
this.scrollWidth = res.size.width
|
||
})
|
||
// #endif
|
||
},
|
||
}
|
||
}
|
||
</script>
|
||
|
||
<style lang="scss" scoped>
|
||
@import "../../libs/css/components.scss";
|
||
|
||
.u-scroll-list {
|
||
padding-bottom: 10px;
|
||
|
||
&__scroll-view {
|
||
@include flex;
|
||
|
||
&__content {
|
||
@include flex;
|
||
}
|
||
}
|
||
|
||
&__indicator {
|
||
@include flex;
|
||
justify-content: center;
|
||
margin-top: 15px;
|
||
|
||
&__line {
|
||
width: 60px;
|
||
height: 4px;
|
||
border-radius: 100px;
|
||
overflow: hidden;
|
||
|
||
&__bar {
|
||
width: 20px;
|
||
height: 4px;
|
||
border-radius: 100px;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
</style>
|