Created
June 12, 2012 13:24
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【HTML5】ドラッグ&ドロップで画像表示
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<!DOCTYPE html> | |
<html lang="ja"> | |
<head> | |
<meta charset="UTF-8"> | |
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script> | |
<script type="text/javascript"> | |
$(function() { | |
$('#target').bind('drop', function(e) { | |
// ドロップ | |
e.preventDefault(); | |
// ファイル取得 | |
var files = e.originalEvent.dataTransfer.files; | |
for (var i = 0; i< files.length; i++) { | |
var f = files[i]; | |
// FileReader | |
var reader = new FileReader(); | |
if (!f.type.match('image.*')) { | |
return; | |
} | |
reader.file = f; | |
reader.onload = function(e) { | |
// 画像表示 | |
var img = $('<img>').attr('src', e.target.result).attr('width', '50px'); | |
// ファイル名 | |
var span = $('<span>').text(this.file.name); | |
var li = $('<li>').append(img).append(span); | |
$('#result').append(li); | |
}; | |
reader.onerror = function(e) { | |
alert('read error!'); | |
}; | |
// 画像読み込み | |
reader.readAsDataURL(f); | |
} | |
}) | |
.bind('dragenter', function(e) { | |
e.preventDefault(); | |
return false; | |
}) | |
.bind('dragover', function(e) { | |
e.preventDefault(); | |
return false; | |
}); | |
}); | |
</script> | |
</head> | |
<body> | |
<div id="target" draggable="true" style="height:200px; width:200px; background-color:gray;"> | |
ここにドラッグ | |
</div> | |
<ul id="result"> | |
</ul> | |
</body> | |
</html> |
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