<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>图片上传前预览</title>
<link href="imgup.css" rel="stylesheet" type="text/css">
<style type="text/css">
::-moz-focus-inner{
padding: 0;
border: 0;
}
.ui_button,
.ui_fileup {
vertical-align: middle;
border: 1px solid #ccc;
display: inline-block;
padding: 5px 10px;
background: #FFF;
font-size: 12px;
*overflow: visible;
*display: inline;
*zoom: 1;
}
.ui_fileup {
position: relative;
overflow: hidden;
}
.ui_fileup input {
filter: alpha(opacity=1);
position: absolute;
background: #fff;
font-size: 60px;
cursor: default;
width: auto;
opacity: 0;
z-index: 1;
left: auto;
right: 0;
top: 0;
}
.avataria .cont {
text-align: center;
min-height: 1%;
margin: 25px;
width: 302px;
_zoom: 1;
}
.avataria form {
text-align: left;
overflow: hidden;
}
.avataria .cont:after {
content: "";
display: block;
overflow: hidden;
height: 0;
clear: both;
}
.thumb {
float: right;
height: 120px;
width: 120px;
}
.cropaera {
clear: both;
}
.preview {
height: 300px;
width: 300px;
}
</style>
</head>
<body>
<div class="avataria" title="头像上传前预览">
<div class="cont">
<div class="thumb"></div>
<form enctype="application/x-www-form-urlencoded">
<div class="ui_fileup"><input type="file" id="file" accept="image/*" onerror="alert('请选择一个图片')">浏览</div>
<input type="submit" class="ui_button" value="保存">
<input name="crop" type="hidden">
</form>
</div>
<div class="cont">
<div id="preview" class="preview"></div>
</div>
</div>
<script src="jquery-1.8.3.min.js"></script>
<script src="imagepreview.js"></script>
<script src="jquery.crop.js"></script>
<script>
imagepreview(document.getElementById("file"), document.getElementById("preview"), function(info){
//alert("文件名:" + info.name + "\r\n图片原始高度:" + info.height + "\r\n图片原始宽度:" + info.width);
//这里若return false则不预览图片
$("#preview").css({
background: "none"
});
$("#preview").crop( function(e){
$("input[type='hidden']").val([e.top, e.left, e.height, e.width].toString());
}, ".thumb");
});
</script>
</body>
</html>