今天给小伙伴们分享一个全新开发的React自定义对话框最近RLayer。

rlayer 基于react.js开发的PC桌面端交互式弹出框组件。融合了Dialog、Message、Notification、ActionSheet、Toast、Popover、Popconfirm等多种功能。

看名称就能联想到前端界有名的弹窗layer.js，其实在设计开发之初就有借鉴layer插件实现思想。

功能

• 提供函数式调用方法 rlayer({…})
• 12 弹框类型 (toast | footer | actionsheet | actionsheetPicker | android/ios | contextmenu | drawer | iframe | message | notify | popover)
• 7 种弹窗动画 (scaleIn | fadeIn | footer | fadeInUp | fadeInDown | fadeInLeft | fadeInRight)

引入组件

在需要使用组件的页面引入rlayer组件。

// 引入弹框组件RLayer
import rlayer from \'./components/rlayer\'

快速使用

引入后即可通过函数rlayer({…})来调用即可。

支持超过30 个参数自由搭配，快速实现定制化的各种效果。

// msg消息
const showMsg = () => {
    rlayer({
        content: "这是一条msg消息提示",
        shadeClose: false,
        xclose: false,
        time: 2
    })
}

// confirm询问框
const showConfirm = () => {
    let $el = rlayer({
        title: \'询问标题\',
        content: "

",
        shadeClose: false,
        zIndex: 1001,
        lockScroll: false,
        resize: true,
        dragOut: true,
        btns: [
            {
                text: \'取消\',
                click: () => {
                    $el.close()
                }
            },
            {
                text: \'确定\',
                style: {color: \'#61dafb\'},
                click: () => {
                    handleInfo()
                }
            }
        ]
    })
}

RLayer弹框模板

class RLayerComponent extends React.Component {
    // ...

    render() {
        let opt = this.state

        return (
            <>
            <div className={domUtils.classNames(\'rui__layer\', {\'rui__layer-closed\': opt.closeCls})} id={opt.id} style={{display: opt.opened?\'block\':\'none\'}}>
                {/* 遮罩 */}
                { opt.shade && <div className="rlayer__overlay" onClick={this.shadeClicked} style={{opacity: opt.opacity}}>div> }
                {/* 窗体 */}
                <div className={domUtils.classNames(\'rlayer__wrap\', opt.anim&&\'anim-\' opt.anim, opt.type&&\'popui__\' opt.type, opt.drawer&&\'popui__drawer-\' opt.drawer, opt.xclose&&\'rlayer-closable\', opt.tipArrow)} style={{...opt.layerStyle}}>
                { opt.title && <div className=\'rlayer__wrap-tit\' dangerouslySetInnerHTML={{__html: opt.title}}>div> }
                { opt.type == \'toast\' && opt.icon ? <div className={domUtils.classNames(\'rlayer__toast-icon\', \'rlayer__toast-\' opt.icon)} dangerouslySetInnerHTML={{__html: opt.toastIcon[opt.icon]}}>div> : null }
                <div className=\'rlayer__wrap-cntbox\'>
                    { opt.content ? 
                    <>
                        {
                        opt.type == \'iframe\' ? 
                        (
                            <iframe scrolling=\'auto\' allowtransparency=\'true\' frameBorder=\'0\' src={opt.content}>iframe>
                        )
                        : 
                        (opt.type == \'message\' || opt.type == \'notify\' || opt.type == \'popover\') ? 
                        (
                            <div className=\'rlayer__wrap-cnt\'>
                            { opt.icon && <i className={domUtils.classNames(\'rlayer-msg__icon\', opt.icon)} dangerouslySetInnerHTML={{__html: opt.messageIcon[opt.icon]}}>i> }
                            <div className=\'rlayer-msg__group\'>
                                { opt.title && <div className=\'rlayer-msg__title\' dangerouslySetInnerHTML={{__html: opt.title}}>div> }
                                { typeof opt.content == \'string\' ? 
                                <div className=\'rlayer-msg__content\' dangerouslySetInnerHTML={{__html: opt.content}}>div>
                                :
                                <div className=\'rlayer-msg__content\'>{opt.content}div>
                                }
                            div>
                            div>
                        )
                        : 
                        (
                            typeof opt.content == \'string\' ? 
                            (<div className=\'rlayer__wrap-cnt\' dangerouslySetInnerHTML={{__html: opt.content}}>div>)
                            :
                            opt.content
                        )
                        }
                    </>
                    :
                    null
                    }
                div>
                {/* btns */}
                { opt.btns && <div className=\'rlayer__wrap-btns\'>
                    {
                        opt.btns.map((btn, index) => {
                            return <span className={domUtils.classNames(\'btn\', {\'btn-disabled\': btn.disabled})} key={index} style={{...btn.style}} dangerouslySetInnerHTML={{__html: btn.text}} onClick={this.btnClicked.bind(this, index)}>span>
                        })
                    }
                    div>
                }
                { opt.xclose && <span className={domUtils.classNames(\'rlayer__xclose\', !opt.maximize&&opt.xposition)} style={{color: opt.xcolor}} onClick={this.close}>span> }
                { opt.maximize && <span className=\'rlayer__maximize\' onClick={this.maximizeClicked}>span> }
                { opt.resize && <span className=\'rlayer__resize\'>span> }
                div>
                {/* 修复拖拽卡顿 */}
                <div className=\'rlayer__dragfix\'>div>
            div>
            </>
        )
    }
}

默认参数配置

class RLayerComponent extends React.Component {
    /**
     * 弹出框默认配置
     */
    static defaultProps = {
        // 参数
        id: \'\',                       // {string} 控制弹层唯一标识，相同id共享一个实例
        title: \'\',                    // {string} 标题
        content: \'\',              // {string|element} 内容（支持字符串或组件）
        type: \'\',                   // {string} 弹框类型
        layerStyle: \'\',          // {object} 自定义弹框样式
        icon: \'\',                  // {string} Toast图标（loading|success|fail）
        shade: true,           // {bool} 是否显示遮罩层
        shadeClose: true,    // {bool} 是否点击遮罩层关闭弹框
        lockScroll: true,       // {bool} 是否弹框显示时将body滚动锁定
        opacity: \'\',                // {number|string} 遮罩层透明度
        xclose: true,             // {bool} 是否显示关闭图标
        xposition: \'right\',     // {string} 关闭图标位置（top|right|bottom|left）
        xcolor: \'#333\',         // {string} 关闭图标颜色
        anim: \'scaleIn\',        // {string} 弹框动画
        position: \'auto\',      // {string|array} 弹框位置
        drawer: \'\',               // {string} 抽屉弹框（top|right|bottom|left）
        follow: null,            // {string|array} 跟随定位弹框
        time: 0,                  // {number} 弹框自动关闭秒数（1|2|3...）
        zIndex: 8090,        // {number} 弹框层叠
        topmost: false,      // {bool} 是否置顶当前弹框
        area: \'auto\',           // {string|array} 弹框宽高
        maxWidth: 375,    // {number} 弹框最大宽度（只有当area:\'auto\'时设定才有效）
        maximize: false,     // {bool} 是否显示最大化按钮
        fullscreen: false,      // {bool} 是否全屏弹框
        fixed: true,                  // {bool} 是否固定弹框
        drag: \'.rlayer__wrap-tit\',    // {string|bool} 拖拽元素
        dragOut: false,               // {bool} 是否允许拖拽到浏览器外
        lockAxis: null,         // {string} 限制拖拽方向可选: v 垂直、h 水平，默认不限制
        resize: false,           // {bool} 是否允许拉伸弹框
        btns: null,              // {array} 弹框按钮（参数:text|style|disabled|click）

        // 事件
        success: null,         // {func} 层弹出后回调
        end: null,              // {func} 层销毁后回调
    }
	
	// ...
}

/**
 * ReactJs|Next.js弹出框组件RLayer
 */
import React from \'react\'
import ReactDOM from \'react-dom\'

// 引入操作类
import domUtils from \'./utils/dom\'

let $index = 0, $lockCount = 0, $timer = {}

class RLayerComponent extends React.Component {
    constructor(props) {
        super(props)
        this.state = {
            // ...
        }

        this.closeTimer = null
    }

    componentDidMount() {
        window.addEventListener(\'resize\', this.autopos, false)
    }
    componentWillUnmount() {
        window.removeEventListener(\'resize\', this.autopos, false)
        clearTimeout(this.closeTimer)
    }

    /**
     * 打开弹框
     */
    open = (options) => {
        options.id = options.id || `rlayer-${domUtils.generateId()}`

        this.setState({
            ...this.props, ...options, opened: true,
        }, () => {
            const { success } = this.state
            typeof success === \'function\' && success.call(this)

            this.auto()
            this.callback()
        })
    }

    /**
     * 关闭弹框
     */
    close = () => {
        const { opened, time, end, remove, rlayerOpts, action } = this.state
        if(!opened) return

        this.setState({ closeCls: true })
        clearTimeout(this.closeTimer)
        this.closeTimer = setTimeout(() => {
            this.setState({
                closeCls: false,
                opened: false,
            })
            if(rlayerOpts.lockScroll) {
                $lockCount--
                if(!$lockCount) {
                    document.body.style.paddingRight = \'\'
                    document.body.classList.remove(\'rc-overflow-hidden\')
                }
            }
            if(time) {
                $index--
            }
            if(action == \'update\') {
                document.body.style.paddingRight = \'\'
                document.body.classList.remove(\'rc-overflow-hidden\')
            }
            rlayerOpts.isBodyOverflow && (document.body.style.overflow = \'\')
            remove()
            typeof end === \'function\' && end.call(this)
        }, 200);
    }

    // 弹框位置
    auto = () => {
        // ...
    }

    autopos = () => {
        const { opened, id, fixed, follow, position } = this.state
        if(!opened) return
        let oL, oT
        let dom = document.querySelector(\'#\'   id)
        let rlayero = dom.querySelector(\'.rlayer__wrap\')

        if(!fixed || follow) {
            rlayero.style.position = \'absolute\'
        }

        let area = [domUtils.client(\'width\'), domUtils.client(\'height\'), rlayero.offsetWidth, rlayero.offsetHeight]

        oL = (area[0] - area[2]) / 2
        oT = (area[1] - area[3]) / 2

        if(follow) {
            this.offset()
        } else {
            typeof position === \'object\' ? (
                oL = parseFloat(position[0]) || 0, oT = parseFloat(position[1]) || 0
            ) : (
                position == \'t\' ? oT = 0 : 
                position == \'r\' ? oL = area[0] - area[2] : 
                position == \'b\' ? oT = area[1] - area[3] : 
                position == \'l\' ? oL = 0 : 
                position == \'lt\' ? (oL = 0, oT = 0) : 
                position == \'rt\' ? (oL = area[0] - area[2], oT = 0) : 
                position == \'lb\' ? (oL = 0, oT = area[1] - area[3]) :
                position == \'rb\' ? (oL = area[0] - area[2], oT = area[1] - area[3]) : 
                null
            )

            rlayero.style.left = parseFloat(fixed ? oL : domUtils.scroll(\'left\')   oL)   \'px\'
            rlayero.style.top = parseFloat(fixed ? oT : domUtils.scroll(\'top\')   oT)   \'px\'
        }
    }

    // 跟随元素定位
    offset = () => {
        const { id, follow } = this.state
        let oW, oH, pS
        let dom = document.querySelector(\'#\'   id)
        let rlayero = dom.querySelector(\'.rlayer__wrap\')

        oW = rlayero.offsetWidth
        oH = rlayero.offsetHeight
        pS = domUtils.getFollowRect(follow, oW, oH)

        this.setState({ tipArrow: pS[2] })

        rlayero.style.left = pS[0]   \'px\'
        rlayero.style.top = pS[1]   \'px\'
    }

    // 最大化弹框
    full = () => {
        // ...
    }

    // 恢复弹框
    restore = () => {
        const { id, maximize, rlayerOpts } = this.state
        let dom = document.querySelector(\'#\'   id)
        let rlayero = dom.querySelector(\'.rlayer__wrap\')
        let otit = dom.querySelector(\'.rlayer__wrap-tit\')
        let ocnt = dom.querySelector(\'.rlayer__wrap-cntbox\')
        let obtn = dom.querySelector(\'.rlayer__wrap-btns\')
        let omax = dom.querySelector(\'.rlayer__maximize\')

        let t = otit ? otit.offsetHeight : 0
        let b = obtn ? obtn.offsetHeight : 0

        if(!rlayerOpts.lockScroll) {
            rlayerOpts.isBodyOverflow = false
            this.setState({rlayerOpts})
            document.body.style.overflow = \'\'
        }

        maximize && omax.classList.remove(\'maximized\')

        rlayero.style.left = parseFloat(rlayerOpts.rect[0])   \'px\'
        rlayero.style.top = parseFloat(rlayerOpts.rect[1])   \'px\'
        rlayero.style.width = parseFloat(rlayerOpts.rect[2])   \'px\'
        rlayero.style.height = parseFloat(rlayerOpts.rect[3])   \'px\'
        ocnt.style.height = parseFloat(rlayerOpts.rect[3] - t - b)   \'px\'
    }

    // 拖拽|缩放弹框
    move = () => {
        // ...
    }

    // 事件处理
    callback = () => {
        const { time } = this.state
        // 倒计时关闭弹框
        if(time) {
            $index  
            // 防止重复计数
            if($timer[$index] != null) clearTimeout($timer[$index])
            $timer[$index] = setTimeout(() => {
                this.close()
            }, parseInt(time) * 1000);
        }
    }

    // 点击最大化按钮
    maximizeClicked = (e) => {
        let o = e.target
        if(o.classList.contains(\'maximized\')) {
            // 恢复
            this.restore()
        } else {
            // 最大化
            this.full()
        }
    }

    // 点击遮罩层
    shadeClicked = () => {
        if(this.state.shadeClose) {
            this.close()
        }
    }

    // 按钮事件
    btnClicked = (index, e) => {
        let btn = this.state.btns[index]
        if(!btn.disabled) {
            typeof btn.click === \'function\' && btn.click(e)
        }
    }
}

好了，以上就是基于React.js实现PC端弹出框组件，希望对大家有所帮助哈！