BurgerDialog - 弹出式对话框组件库 - 常规

<p><!doctype html></p>
<html>
<head>
    <meta charset="UTF-8">
    <meta name="viewport" id="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0">
    <link rel="shortcut icon" href="favicon.png" type="image/x-icon">
    <link rel="stylesheet" type="text/css" href="waves/waves.min.css" />
    <title>BurgerDialog - 弹出式对话框组件库</title>
    <style>
        * {
            font-family: sans-serif;
        }
<pre><code>    html,
    body {
        margin: 0;
    }

    .burger-dialog {
        height: 160px;
        width: 280px;
        background-color: #EDE7F6;
        z-index: -1;
        position: fixed;
        text-align: center;
        left: calc(50% - 156px);
        top: calc(50% - 96px);
        border-radius: 16px;
        box-shadow: 0 4px 32px 4px rgba(0, 0, 0, .4);
        padding: 16px;
        opacity: 0;
        display: none;
        transform: scale(.85);
        transition-property: opacity, transform;
        transition-duration: .3s;
        transition-timing-function: cubic-bezier(0.77, 0, 0.175, 1);
    }

    @media (min-width: 1024px) {
        .burger-dialog {
            width: 640px;
            left: calc(50% - 336px);
        }
    }

    .burger-dialog-title {
        font-size: 20px;
        text-align: left;
        margin: 4px 0;
    }

    .burger-dialog-content {
        text-align: left;
        margin: 16px 0;
        color: rgba(0, 0, 0, .7);
    }

    .burger-dialog-actions {
        position: absolute;
        bottom: 16px;
        right: 16px;
        float: right;
    }

    .burger-dialog-actions button {
        border: none;
        padding: 8px 16px;
        background-color: #EDE7F6;
        color: #673AB7;
        border-radius: 16px;
        display: inline-block;
        margin: 4px 0;
        transition-property: filter;
        transition-duration: .3s;
    }

    .burger-dialog-actions button:hover {
        filter: brightness(0.8);
    }

    .cover {
        position: fixed;
        height: 100%;
        width: 100%;
        left: 0;
        top: 0;
        z-index: -1;
        background-color: rgba(0, 0, 0, .5);
        transition-property: opacity;
        transition-duration: .3s;
    }
&lt;/style&gt;
&lt;style&gt;
    .btn {
        border: none;
        padding: 8px 16px;
        background-color: #EDE7F6;
        color: #673AB7;
        border-radius: 16px;
        display: inline-block;
        margin: 16px;
        transition-property: filter;
        transition-duration: .3s;
    }

    .btn:hover {
        filter: brightness(0.8);
    }
&lt;/style&gt;
</code></pre>
</head>
<body>
    <h1 style="text-align: center;color: #673AB7;">BurgerDialog</h1>
    <div style="text-align: center;">
        <button class="btn waves-block" onclick="openDialog('#dialog-1');">弹出对话框-1</button>
    </div>
    <div class="burger-dialog" id="dialog-1">
        <div class="burger-dialog-title">对话框标题</div>
        <div class="burger-dialog-content">对话框内容<br>Made by Burger Studio.</div>
        <div class="burger-dialog-actions">
            <button class="waves-block" onclick="closeDialog('#dialog-1');">取消</button>
            <button class="waves-block" onclick="closeDialog('#dialog-1');">确定</button>
        </div>
    </div>
    <script>
        function openDialog(element) {
            document.querySelector(element).style.display = "block";
            window.setTimeout(function () {
                document.querySelector(element).style.opacity = "1";
                document.querySelector(element).style.transform = "scale(1)";
                document.querySelector(element).style.zIndex = 999;
                var cover = document.createElement("div");
                document.body.appendChild(cover);
                cover.classList.add("cover");
                window.setTimeout(function () {
                    cover.style.opacity = "1";
                }, 0);
            }, 0);
        }
        function closeDialog(element) {
            document.querySelector(element).style.opacity = "0";
            window.setTimeout(function () {
                document.querySelector(element).style.display = "none";
                document.querySelector(element).style.transform = "scale(.85)";
            document.querySelector(element).style.zIndex = -1;
            }, 300);
        }
    </script>
    <script src="waves/waves.min.js"></script>
    <script>
        var config = {
            duration: 500,
            delay: 0
        };
        Waves.init(config);
        Waves.attach('.waves-block', ['waves-block']);
        Waves.attach('.waves-circle', ['waves-circle']);
        Waves.attach('.waves-light', ['waves-light']);
        Waves.attach('.waves-classic', ['waves-classic']);
        Waves.init(config);
    </script>
</body>
</html>
这可能是因为在创建cover元素后立即设置了其opacity属性为0，然后又立即设置为1，没有给它一个过渡效果的机会。可以尝试将cover元素的opacity属性的设置移动到setTimeout函数内部的代码块中，以便在打开对话框之后再设置opacity属性，从而触发过渡动画。修改后的代码如下：
<pre><code class="language-javascript">function openDialog(element) {
    document.querySelector(element).style.display = &quot;block&quot;;
    window.setTimeout(function () {
        document.querySelector(element).style.opacity = &quot;1&quot;;
        document.querySelector(element).style.transform = &quot;scale(1)&quot;;
        document.querySelector(element).style.zIndex = 999;
        var cover = document.createElement(&quot;div&quot;);
        document.body.appendChild(cover);
        cover.classList.add(&quot;cover&quot;);
        window.setTimeout(function () {
            cover.style.opacity = &quot;1&quot;;
        }, 0);
    }, 0);
}
</code></pre>