1

介绍

Vue3-Layer 一款基于vue3.x实现的PC桌面端弹窗组件。拥有极简的调用方式、超多的参数配置。支持拖拽、缩放、最大化、全局、自定义弹窗样式等功能。

image
image

快速引入

// 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同样支持标签式+函数式两种调用方式。

  • 标签式调用
<v3-layer 
    v-model="showDialog"
    title="标题内容"
    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: '取消', 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: '标题内容',
    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: '取消', 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效果。

image
image

Vue3.0中提供了两种全局挂载方式 app.config.globalPropertiesapp.provide 详细使用可以去参看官网说明。
https://v3.cn.vuejs.org/api/a...
https://v3.cn.vuejs.org/guide...
另外使用的话,在这一篇文章也有些介绍。
https://segmentfault.com/a/11...

image
image
image
image
image
image
image
image

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              弹窗唯一标识
title           标题
content         内容(支持String、带标签内容、自定义插槽内容)***如果content内容比较复杂,推荐使用标签式写法
type            弹框类型(toast|footer|actionsheet|actionsheetPicker|android|ios|contextmenu|drawer|iframe)
layerStyle      自定义弹窗样式
icon            toast图标(loading | success | fail)
shade           是否显示遮罩层
shadeClose      是否点击遮罩时关闭弹窗
lockScroll      是否弹窗出现时将body滚动锁定
opacity         遮罩层透明度
xclose          是否显示关闭图标
xposition       关闭图标位置(left | right | top | bottom)
xcolor          关闭图标颜色
anim            弹窗动画(scaleIn | fadeIn | footer | fadeInUp | fadeInDown | fadeInLeft | fadeInRight)
position        弹出位置(auto | ['100px','50px'] | t | r | b | l | lt | rt | lb | rb)
drawer          抽屉弹窗(top | right | bottom | left)
follow          跟随元素定位弹窗(支持元素.kk #kk 或 [e.clientX, e.clientY])
time            弹窗自动关闭秒数(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位置,可通过teleport自定义挂载位置) teleport="body | #xxx | .xxx"
topmost         置顶当前窗口(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的设定才有效)
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         是否允许拖拽到窗口外(默认false)
lockAxis        限制拖拽方向可选: v 垂直、h 水平,默认不限制
resize          是否允许拉伸尺寸(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       层打开回调事件
onEnd           层关闭回调事件
  • v3layer模板及逻辑处理
<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,蒙层控制,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();
                }
            })

            // 打开弹窗
            const open = () => {
                if(data.opened) return;
                data.opened = true;
                typeof props.onSuccess === 'function' && props.onSuccess();

                const dom = elRef.value;
                // 弹层挂载位置
                if(props.teleport) {
                    nextTick(() => {
                        let teleportNode = document.querySelector(props.teleport);
                        teleportNode.appendChild(dom);

                        auto();
                    })
                }

                callback();
            }

            // 关闭弹窗
            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--;
                    }
                    // 清除弹窗样式
                    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)
            }

            // 弹窗位置
            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';
                }
            }

            // 元素跟随定位
            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 = () => {
                // ...
            }

            // 恢复弹窗
            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 = () => {
                // 倒计时关闭
                if(props.time) {
                    $index++
                    // 防止重复点击
                    if($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')) {
                    // 恢复
                    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>

大家可以在此基础上扩充一些想要的效果。
vue3.0中把弹框实例挂载到body上可通过createAppcreateVNode实现。大家感兴趣也可以看看之前分享的一篇文章。

ok,使用Vue3开发自定义alert/dialog组件就分享到这里。感谢大家的阅读!✍

image


xiaoyan2017
765 声望314 粉丝

web前端开发爱好者,专注于前端h5、jquery、vue、react、angular等技术研发实战项目案例。