仿iOS弹窗插件Prompt.js

摘要：写了个简单的弹窗插件效果图如下功能仿弹出效果背景模糊可传入的确定和取消回调函数等用法不带参数调用会按照默认参数和回调函数调用带参数调用目前有四个参数标题内容确定回调取消回调其中取消回调和标题是可选的而内容和确定回调必填确定取消关注达人按参

写了个简单的弹窗插件Prompt.js, 效果图如下

功能: 仿iOS弹出效果, 背景模糊, 可传入的确定和取消回调函数等.

不带参数调用:

Prompt()

会按照默认参数和回调函数调用

带参数调用:

目前有四个参数 - 标题(str), 内容(str), 确定回调(function), 取消回调(function). 其中取消回调和标题是可选的, 而内容和确定回调必填.

javascript
Prompt({content: "确定取消关注达人?", okCallback:function(){void(0)}, cancelCallback:function(){void(0)}})

按参数自动重载

当没有传入取消回调函数时, 只会显示"确定"按钮.

module.exports = window.Prompt = function(options){
    var cancelFlag = false; 
    var titleFlag = false; 
    if(options){
        options.content||(options.content = "default content"); 
        options.okCallback||(options.okCallback = function(){
            console.log("ok chosen!"); 
        }); 
        if(options.cancelCallback){
            cancelFlag = true; 
        }; 
        if(options.title){
            titleFlag = true; 
        }; 
    }else{
        var options={
            title:"this is default title", 
            content: "this is default content", 
            okCallback: function(){
                console.log("ok clicked!"); 
            },
            cancelCallback: function(){
                console.log("cancel clicked!"); 
            }
        }
        cancelFlag = true; 
        titleFlag = true; 
    }; 
    // debugger; 
    var shade = document.createElement("div"); 
    shade.setAttribute("style", "background-color:rgba(0,0,0,0.6); width:100%; height: 100%; position:absolute; left:0; top:0; z-index:1024;")
    shade.classList.add("shade"); 
    var prompt = document.createElement("div"); 
    prompt.setAttribute("style", "position:absolute; margin:auto; left:0; right:0; top:0; bottom:0; width:6rem; height:4rem; background-color:#fff; z-index:1025; transition: all .3s ease; box-sizing: content-box; padding: 0.2rem; border-radius: 10px; opacity: 0; "); 
    var innerPrompt = document.createElement("div"); 
    innerPrompt.setAttribute("style", "height:100%; width:100%; text-align: center; font-size: 0.3rem; "); 
    innerPrompt.classList.add("innerPrompt"); 
    
    if(titleFlag){
        var title = document.createElement("p"); 
        title.innerHTML = options.title; 
        innerPrompt.appendChild(title); 
    }; 
    
    var content = document.createElement("p"); 
    content.innerHTML = options.content; 
    innerPrompt.appendChild(content); 
    
    function modualRemoval(){
        document.body.removeChild(shade); 
        var others = document.querySelectorAll("body > *"); 
        [].forEach.call(others, function(elem){
            if(elem.nodeName != "SCRIPT"){
                elem.style.webkitFilter = ""; 
            }
        }); 
    }; 

    var buttonWrapper = document.createElement("div"); 
    
    var okBtn = document.createElement("button"); 
    okBtn.innerHTML = "确定"; 
    okBtn.addEventListener("click", function(event){
        options.okCallback(); 
        modualRemoval(); 
        event.stopPropagation(); 
    }); 
    buttonWrapper.appendChild(okBtn); 
    
    if(cancelFlag){
        var cancelBtn = document.createElement("button"); 
        cancelBtn.innerHTML = "取消"; 
        cancelBtn.addEventListener("click", function(event){
            options.cancelCallback();
            modualRemoval(); 
            event.stopPropagation(); 
        }); 
        buttonWrapper.appendChild(cancelBtn); 
    }
    innerPrompt.appendChild(buttonWrapper); 
    
    prompt.appendChild(innerPrompt); 
    shade.appendChild(prompt); 
    document.body.appendChild(shade); 
    setTimeout(function(){
        var others = document.querySelectorAll("body > *:not(.shade)"); 
        [].forEach.call(others, function(elem){
            if(elem.nodeName != "SCRIPT"){
                elem.style.webkitFilter = "blur(6px)"; 
            }
        })
        prompt.style.opacity = 1; 
        prompt.style.padding = 0; 
    }, 50); 
    prompt.addEventListener("click", function(event){
        event.stopPropagation(); 
    }); 
    shade.addEventListener("click", function(event){
        modualRemoval(); 
    }); 
}

div.innerPrompt{
    padding: 0.2rem; 
}
div.innerPrompt > p:first-of-type{
    margin-top: 20%; 
}
div.innerPrompt > div{
    position: absolute;
    left:0; 
    bottom: 0; 
    display: -webkit-box; 
    width: 100%; 
    border-bottom-right-radius: 10px; 

}
div.innerPrompt > div > button{
    display: block; 
    -webkit-box-flex: 1; 
    background-color: #fff; 
    border-top: 1px solid #bbb; 
    height: 0.8rem; 
}
div.innerPrompt > div > button:last-child{
    border-bottom-right-radius: 10px; 
    color: #777; 
}
div.innerPrompt > div > button:first-child{
    border-bottom-left-radius: 10px; 
    border-right: 1px solid #bbb; 
    color: red; 
}

你也可以根据你的喜好定制CSS

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