摘要：寫了個簡單的彈窗插件效果圖如下功能仿彈出效果背景模糊可傳入的確定和取消回調函數等用法不帶參數調用會按照默認參數和回調函數調用帶參數調用目前有四個參數標題內容確定回調取消回調其中取消回調和標題是可選的而內容和確定回調必填確定取消關注達人按參

寫了個簡單的彈窗插件Prompt.js, 效果圖如下

功能: 仿iOS彈出效果, 背景模糊, 可傳入的確定和取消回調函數等.

不帶參數調用:

Prompt()

會按照默認參數和回調函數調用

帶參數調用:

目前有四個參數 - 標題(str), 內容(str), 確定回調(function), 取消回調(function). 其中取消回調和標題是可選的, 而內容和確定回調必填.

javascript
Prompt({content: "確定取消關注達人?", okCallback:function(){void(0)}, cancelCallback:function(){void(0)}})

按參數自動重載

當沒有傳入取消回調函數時, 只會顯示"確定"按鈕.

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 = "確定"; 
    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; 
}

你也可以根據你的喜好定制CSS

-EOF-