H5 drag and drop API: automatically generate photo frame

Function: The desktop picture dragged into designated places, photo frames and generate relevant information.
Photo frame needs its own configuration, set the background, set in CSS.
FIG Effect:
The initial state
Here Insert Picture Description
HTML part:

<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<title></title>
		<link rel="stylesheet" type="text/css" href="test3.css"/>
		<script type="text/javascript" src="test3.js"></script>
	</head>

	<body>
		<h1 style="text-align: center;">H5拖放API之图片相框效果</h1>
		<hr />
		<div class="box"></>
			请将图片拖放至此处
		</div>
		<div class="box2"></div>
		
	</body>

</html>

CSS part:

* {
	margin: 0px;
	padding: 0px;
}
.box2 hr {
	border: 3px solid blueviolet;
}
.box {
	width: 240px;
	height: 150px;
	border: 1px dotted red;
	text-align: center;
	margin: 20px auto;
	line-height: 150px;
}
.box2 {
	margin: 20px auto;
	width: 240px;
	padding: 30px;
	border: 3px solid pink ;
	font-size: 13px;

} 
.photoFrame {
	border-top: 15px solid #90EE90;
	border-bottom: 15px solid #90EE90;
	border-left: 15px solid #48D1CC;
	border-right: 15px solid #20B2AA;
	border-style: inset; 
	width: 200px;
	height: 200px;
	background: url(../imgs/ptoto.jpg);
	margin: 10px auto;
	position: relative;
	overflow: hidden;
}
img {
	position: absolute;
	width: 154px;
	height: 141px;
	left: 25px;
	top: 30px;
	right: 30px;
	bottom: 30px;
}
li {
	list-style-type: none;
}

JS part

window.onload = function() {
	var box2 = document.querySelector(".box2");
	var box = document.querySelector(".box");
	var count = 0;

	function photoFrame() {
		var d1 = document.createElement("div");
		d1.className = "photoFrame";
		d1.style.marginTop = "30px";
		d1.style.marginLeft = "5px";
		var img = document.createElement("img");
		img.src = "";
		count++;
		img.id = 'img' + parseInt(count);
		d1.appendChild(img);
		return d1;
	}
	box.ondragover = function(ev) {
		ev.preventDefault();
	}
	box.ondrop = function(ev) {
		ev.preventDefault();
		var files = ev.dataTransfer.files;
		//获取当前文件的最新修改日期
		var lastModified = files[0].lastModifiedDate;
		//修改当前文件的最新修改日期的描述格式
		var lastModifiedStr = lastModified ? lastModified.toLocaleDateString() + ' ' + lastModified.toLocaleTimeString() : 'n/a';
		//设置图片下方状态信息栏描述内容
		var fileStatus = "<li>1.名称:" + files[0].name + "<br>2.类型:" + files[0].type + "<br>3.大小:" +
			files[0].size + "字节" + "<br>4.修改时间:" + lastModifiedStr + "</li>" + "<hr/>";
		box2.appendChild(photoFrame());
		box2.innerHTML = box2.innerHTML + fileStatus;

		//设置图片路径
		function setPath() {
			var fd = new FileReader();
			if(files[0].type.indexOf('image') != 1) {
				fd.readAsDataURL(files[0]);
				count++;
				var id = "img" + parseInt(count - 1);
				var img = document.getElementById(id);
				fd.onload = function() {
					var img = document.getElementById(id);
					img.src = this.result;
				}
			}
		}
		
		setPath();
	}
}

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Origin blog.csdn.net/qq_44758322/article/details/105346601