共计 8940 个字符，预计需要花费 23 分钟才能阅读完成。
介绍
Vue3-Layer 一款基于 vue3.x 实现的 PC 桌面端弹窗组件。领有极简的调用形式、超多的参数配置。反对拖拽、缩放、最大化、全局、自定义弹窗款式等性能。
疾速引入
// 在 main.js 中全局引入组件
import {createApp} from 'vue'
import App from './App.vue'
const app = createApp(App)
// 引入 Element-Plus 组件库
import ElementPlus from 'element-plus'
import 'element-plus/lib/theme-chalk/index.css'
// 引入弹窗组件 v3layer
import Vue3Layer from './components/v3layer'
app.use(ElementPlus)
app.use(Vue3Layer)
app.mount('#app')v3layer 同样反对标签式 + 函数式两种调用形式。
- 标签式调用
<v3-layer
v-model="showDialog"
title="题目内容"
content="<div style='color:#f57b16;padding:30px;'> 这里是内容信息！</div>"
z-index="1011"
lockScroll="false"
xclose
resize
dragOut
:btns="[{text: '勾销', click: () => showDialog=false},
{text: '确认', style: 'color:#f90;', click: handleSure},
]"
/>
<template v-slot:content> 这里是自定义插槽内容信息！</template>
</v3-layer>- 函数式调用
let $el = v3layer({
title: '题目内容',
content: '<div style='color:#f57b16;padding:30px;'> 这里是内容信息！</div>',
shadeClose: false,
zIndex: 1011,
lockScroll: false,
xclose: true,
resize: true,
dragOut: true,
btns: [{text: '勾销', click: () => {$el.close() }},
{text: '确认', click: () => handleSure},
]
});当弹窗类型为 message | popover | notify 则调用如下：
v3layer.message({...})
v3layer.notify({...})
v3layer.popover({...})传入自定义参数即可实现上述弹窗类型成果。
Vue3.0 中提供了两种全局挂载形式 app.config.globalProperties 和 app.provide 具体应用能够去参看官网阐明。
https://v3.cn.vuejs.org/api/a…
https://v3.cn.vuejs.org/guide…
另外应用的话，在这一篇文章也有些介绍。
https://segmentfault.com/a/11…
实现过程
在 components 目录下新建 v3layer 文件。
- v3layer 配置参数
|props 参数 |
v-model 是否显示弹框
id 弹窗惟一标识
title 题目
content 内容（反对 String、带标签内容、自定义插槽内容）*** 如果 content 内容比较复杂，举荐应用标签式写法
type 弹框类型（toast|footer|actionsheet|actionsheetPicker|android|ios|contextmenu|drawer|iframe）layerStyle 自定义弹窗款式
icon toast 图标（loading | success | fail）shade 是否显示遮罩层
shadeClose 是否点击遮罩时敞开弹窗
lockScroll 是否弹窗呈现时将 body 滚动锁定
opacity 遮罩层透明度
xclose 是否显示敞开图标
xposition 敞开图标地位（left | right | top | bottom）xcolor 敞开图标色彩
anim 弹窗动画（scaleIn | fadeIn | footer | fadeInUp | fadeInDown | fadeInLeft | fadeInRight）position 弹出地位（auto | ['100px','50px'] | t | r | b | l | lt | rt | lb | rb）drawer 抽屉弹窗（top | right | bottom | left）follow 追随元素定位弹窗（反对元素.kk #kk 或 [e.clientX, e.clientY]）time 弹窗主动敞开秒数（1、2、3）zIndex 弹窗层叠（默认 8080）teleport 指定挂载节点（默认是挂载组件标签地位，可通过 teleport 自定义挂载地位）teleport="body | #xxx | .xxx"
topmost 置顶以后窗口（默认 false）area 弹窗宽高（默认 auto）设置宽度 area: '300px' 设置高度 area:['','200px'] 设置宽高 area:['350px','150px']
maxWidth 弹窗最大宽度（只有当 area:'auto' 时，maxWidth 的设定才无效）maximize 是否显示最大化按钮（默认 false）fullscreen 全屏弹窗（默认 false）fixed 弹窗是否固定
drag 拖拽元素（可定义选择器 drag:'.xxx' | 禁止拖拽 drag:false）dragOut 是否容许拖拽到窗口外（默认 false）lockAxis 限度拖拽方向可选: v 垂直、h 程度，默认不限度
resize 是否容许拉伸尺寸（默认 false）btns 弹窗按钮（参数：text|style|disabled|click）++++++++++++++++++++++++++++++++++++++++++++++
|emit 事件触发 |
success 层弹出后回调（@success="xxx"）end 层销毁后回调（@end="xxx"）++++++++++++++++++++++++++++++++++++++++++++++
|event 事件 |
onSuccess 层关上回调事件
onEnd 层敞开回调事件- v3layer 模板及逻辑解决
<template>
<div ref="elRef" v-show="opened" class="vui__layer" :class="{'vui__layer-closed': closeCls}" :id="id">
<!-- // 蒙版 -->
<div v-if="JSON.parse(shade)" class="vlayer__overlay" @click="shadeClicked" :style="{opacity}"></div>
<div class="vlayer__wrap" :class="['anim-'+anim, type&&'popui__'+type, tipArrow]" :style="[layerStyle]">
<div v-if="title" class="vlayer__wrap-tit" v-html="title"></div>
<div v-if="type=='toast'&&icon" class="vlayer__toast-icon" :class="['vlayer__toast-'+icon]" v-html="toastIcon[icon]"></div>
<div class="vlayer__wrap-cntbox">
<!-- 判断插槽是否存在 -->
<template v-if="$slots.content">
<div class="vlayer__wrap-cnt"><slot name="content" /></div>
</template>
<template v-else>
<template v-if="content">
<iframe v-if="type=='iframe'"scrolling="auto"allowtransparency="true"frameborder="0":src="content"></iframe>
<!-- message|notify|popover -->
<div v-else-if="type=='message'|| type=='notify'|| type=='popover'"class="vlayer__wrap-cnt">
<i v-if="icon" class="vlayer-msg__icon" :class="icon" v-html="messageIcon[icon]"></i>
<div class="vlayer-msg__group"><div v-if="title" class="vlayer-msg__title" v-html="title"></div><div v-html="content"></div></div>
</div>
<div v-else class="vlayer__wrap-cnt" v-html="content"></div>
</template>
</template>
<slot />
</div>
<div v-if="btns" class="vlayer__wrap-btns">
<span v-for="(btn,index) in btns" :key="index" class="btn" :style="btn.style" @click="btnClicked($event,index)" v-html="btn.text"></span>
</div>
<span v-if="xclose" class="vlayer__xclose" :class="!maximize&&xposition" :style="{'color': xcolor}" @click="close"></span>
<span v-if="maximize" class="vlayer__maximize" @click="maximizeClicked($event)"></span>
<span v-if="resize" class="vlayer__resize"></span>
</div>
<!-- 优化拖拽卡顿 -->
<div class="vlayer__dragfix"></div>
</div>
</template>/**
* @Desc Vue3.0 桌面端弹窗组件 V3Layer
* @Time andy by 2021-1
* @About Q：282310962 wx：xy190310
*/
<script>
import {onMounted, onUnmounted, ref, reactive, watch, toRefs, nextTick} from 'vue'
import domUtils from './utils/dom.js'
// 索引，蒙层管制，定时器
let $index = 0, $locknum = 0, $timer = {}, $closeTimer = null
export default {
props: {// ...},
emits: ['update:modelValue'],
setup(props, context) {const elRef = ref(null);
const data = reactive({
opened: false,
closeCls: '',
toastIcon: {// ...},
messageIcon: {// ...},
vlayerOpts: {},
tipArrow: null,
})
onMounted(() => {if(props.modelValue) {open();
}
window.addEventListener('resize', autopos, false);
})
onUnmounted(() => {window.removeEventListener('resize', autopos, false);
clearTimeout($closeTimer);
})
// 监听弹层 v -model
watch(() => props.modelValue, (val) => {// console.log('V3Layer is now [%s]', val ? 'show' : 'hide')
if(val) {open();
}else {close();
}
})
// 关上弹窗
const open = () => {if(data.opened) return;
data.opened = true;
typeof props.onSuccess === 'function' && props.onSuccess();
const dom = elRef.value;
// 弹层挂载地位
if(props.teleport) {nextTick(() => {let teleportNode = document.querySelector(props.teleport);
teleportNode.appendChild(dom);
auto();})
}
callback();}
// 敞开弹窗
const close = () => {if(!data.opened) return;
let dom = elRef.value;
let vlayero = dom.querySelector('.vlayer__wrap');
let ocnt = dom.querySelector('.vlayer__wrap-cntbox');
let omax = dom.querySelector('.vlayer__maximize');
data.closeCls = true;
clearTimeout($closeTimer);
$closeTimer = setTimeout(() => {
data.opened = false;
data.closeCls = false;
if(data.vlayerOpts.lockScroll) {
$locknum--;
if(!$locknum) {
document.body.style.paddingRight = '';
document.body.classList.remove('vui__body-hidden');
}
}
if(props.time) {$index--;}
// 革除弹窗款式
vlayero.style.width = vlayero.style.height = vlayero.style.top = vlayero.style.left = '';
ocnt.style.height = '';
omax && omax.classList.contains('maximized') && omax.classList.remove('maximized');
data.vlayerOpts.isBodyOverflow && (document.body.style.overflow = '');
context.emit('update:modelValue', false);
typeof props.onEnd === 'function' && props.onEnd();}, 200)
}
// 弹窗地位
const auto = () => {
// ...
autopos();
// 全屏弹窗
if(props.fullscreen) {full();
}
// 弹窗拖动 | 缩放
move();}
const autopos = () => {if(!data.opened) return;
let oL, oT
let pos = props.position;
let isFixed = JSON.parse(props.fixed);
let dom = elRef.value;
let vlayero = dom.querySelector('.vlayer__wrap');
if(!isFixed || props.follow) {vlayero.style.position = 'absolute';}
let area = [domUtils.client('width'), domUtils.client('height'), vlayero.offsetWidth, vlayero.offsetHeight]
oL = (area[0] - area[2]) / 2;
oT = (area[1] - area[3]) / 2;
if(props.follow) {offset();
}else {
typeof pos === 'object' ? (oL = parseFloat(pos[0]) || 0, oT = parseFloat(pos[1]) || 0
) : (
pos == 't' ? oT = 0 :
pos == 'r' ? oL = area[0] - area[2] :
pos == 'b' ? oT = area[1] - area[3] :
pos == 'l' ? oL = 0 :
pos == 'lt' ? (oL = 0, oT = 0) :
pos == 'rt' ? (oL = area[0] - area[2], oT = 0) :
pos == 'lb' ? (oL = 0, oT = area[1] - area[3]) :
pos == 'rb' ? (oL = area[0] - area[2], oT = area[1] - area[3]) :
null
)
vlayero.style.left = parseFloat(isFixed ? oL : domUtils.scroll('left') + oL) + 'px';
vlayero.style.top = parseFloat(isFixed ? oT : domUtils.scroll('top') + oT) + 'px';
}
}
// 元素追随定位
const offset = () => {
let oW, oH, pS
let dom = elRef.value
let vlayero = dom.querySelector('.vlayer__wrap');
oW = vlayero.offsetWidth;
oH = vlayero.offsetHeight;
pS = domUtils.getFollowRect(props.follow, oW, oH);
data.tipArrow = pS[2];
vlayero.style.left = pS[0] + 'px';
vlayero.style.top = pS[1] + 'px';
}
// 最大化弹窗
const full = () => {// ...}
// 复原弹窗
const restore = () => {
let dom = elRef.value;
let vlayero = dom.querySelector('.vlayer__wrap');
let otit = dom.querySelector('.vlayer__wrap-tit');
let ocnt = dom.querySelector('.vlayer__wrap-cntbox');
let obtn = dom.querySelector('.vlayer__wrap-btns');
let omax = dom.querySelector('.vlayer__maximize');
let t = otit ? otit.offsetHeight : 0
let b = obtn ? obtn.offsetHeight : 0
if(!data.vlayerOpts.lockScroll) {
data.vlayerOpts.isBodyOverflow = false;
document.body.style.overflow = '';
}
props.maximize && omax.classList.remove('maximized')
vlayero.style.left = parseFloat(data.vlayerOpts.rect[0]) + 'px';
vlayero.style.top = parseFloat(data.vlayerOpts.rect[1]) + 'px';
vlayero.style.width = parseFloat(data.vlayerOpts.rect[2]) + 'px';
vlayero.style.height = parseFloat(data.vlayerOpts.rect[3]) + 'px';
}
// 拖动 | 缩放弹窗
const move = () => {// ...}
// 事件处理
const callback = () => {
// 倒计时敞开
if(props.time) {
$index++
// 避免反复点击
if($timer[$index] !== null) clearTimeout($timer[$index])
$timer[$index] = setTimeout(() => {close();
}, parseInt(props.time) * 1000)
}
}
// 点击最大化按钮
const maximizeClicked = (e) => {
let o = e.target
if(o.classList.contains('maximized')) {
// 复原
restore();} else {
// 最大化
full();}
}
// 点击遮罩层
const shadeClicked = () => {if(JSON.parse(props.shadeClose)) {close();
}
}
// 按钮事件
const btnClicked = (e, index) => {let btn = props.btns[index]
if(!btn.disabled) {typeof btn.click === 'function' && btn.click(e)
}
}
return {...toRefs(data),
elRef,
close,
maximizeClicked,
shadeClicked,
btnClicked,
}
}
}
</script>大家能够在此基础上裁减一些想要的成果。
vue3.0 中把弹框实例挂载到 body 上可通过 createApp 或createVNode实现。大家感兴趣也能够看看之前分享的一篇文章。
ok，应用 Vue3 开发自定义 alert/dialog 组件就分享到这里。感激大家的浏览！✍
正文完
