This commit is contained in:
Joe 2016-12-22 21:48:42 +08:00
parent 0c626b43d1
commit 342c2860b3
3 changed files with 122 additions and 1 deletions

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guoren Submodule

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Subproject commit c5cbe7128fa23d7524fb13e47a067abd53f3e093

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Subproject commit 4851a1ef486beefa6c1369fc075552d12ec19d8c

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多图片上传.html Normal file
View File

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<HTML>
<HEAD>
<script type="text/javascript">
var i = 0; // 用来动态生成span,upfile的id
function addAttachmentToList()
{
if (findAttachment(event.srcElement.value)) return; //如果此文档已在图片列表中则不再添加
// 动态创建图片信息栏并添加到图片列表中
var span = document.createElement('span');
span.id = '_attachment' + i;
span.innerHTML = extractFileName(event.srcElement.value) + '&nbsp;<a href="javascript:delAttachment(' + (i++) + ')"><font color="blue">删除</font></a><br/>';
span.title = event.srcElement.value;
G('attachmentList').appendChild(span);
// 显示图片列表并变换添加图片按钮文本
if (G('attachmentList').style.display == 'none')
{
G('btnAdd').value = '继续添加';
G('attachmentList').style.display = '';
G('btnClear').style.display = '';
}
G('total').innerText = '当前选择上传'+ G('attachmentList').childNodes.length + '个图片';
}
function selectAttachment()
{
// 先清除无效动态生成的多余upfile
cleanInvalidUpfile();
// 动态创建上传控件并与span对应
var upfile = '<input type="file" style="display:none" onchange="addAttachmentToList();" id="_upfile'+i+'">';
document.body.insertAdjacentHTML('beforeEnd', upfile);
G('_upfile'+i).click();
}
function extractFileName(fn)
{
return fn.substr(fn.lastIndexOf('\\')+1);
}
function findAttachment(fn)
{
var o = G('attachmentList').getElementsByTagName('span');
for(var i=0;i<o.length;i++)
if (o[i].title == fn) return true;
return false;
}
function delAttachment(id)
{
G('attachmentList').removeChild(G('_attachment'+id));
document.body.removeChild(G('_upfile'+id));
// 当图片列表为空则不显示并且变化添加图片按钮文本
if (G('attachmentList').childNodes.length == 0)
{
G('btnAdd').value = '添加图片';
G('attachmentList').style.display = 'none';
G('btnClear').style.display = 'none';
}
G('total').innerText = '当前选择上传'+ G('attachmentList').childNodes.length + '个图片';
}
function cleanInvalidUpfile()
{
var o = document.body.getElementsByTagName('input');
for(var i=o.length-1;i>=0;i--)
if (o[i].type == 'file' && o[i].id.indexOf('_upfile') == 0)
{
if (!G('_attachment'+o[i].id.substr(7)))
document.body.removeChild(o[i]);
}
}
function clearAttachment()
{
var o = G('attachmentList').childNodes;
for(var i=o.length-1;i>=0;i--)
G('attachmentList').removeChild(o[i]);
o = document.body.getElementsByTagName('input');
for(var i=o.length-1;i>=0;i--)
if (o[i].type == 'file' && o[i].id.indexOf('_upfile') == 0)
{
document.body.removeChild(o[i]);
}
G('btnAdd').value = '添加图片';
G('attachmentList').style.display = 'none';
G('btnClear').style.display = 'none';
G('total').innerText = '当前选择上传0个图片';
}
function getAttachmentInfo()
{
// 已知的js获取本地文件大小的三种方式
}
function G(id)
{
return document.getElementById(id);
}
</script>
</HEAD>
<BODY>
<fieldset style="border:1px solid;text-align:left;FONT-SIZE:12px;font-family: Verdana;padding:5px;">
<form action="#">
<input type="button" value="添加图片" id="btnAdd" onclick="selectAttachment();">&nbsp;
<input type="button" value="清空图片" id="btnClear" style="display:none" onclick="clearAttachment();">
<div id="attachmentList" style="margin:3px 0px 0px 0px;padding:4px 3px 4px 3px;display:none;border:1px solid "></div>
<div id="total" style="margin:3px 0px 0px 0px;">当前选择上传0个图片</div>
<div style="padding10px 3px"><input type="submit" value="上传"></div>
</form>
</BODY>
</HTML>