upload_modified
This commit is contained in:
parent
1ce357fb20
commit
8c17fc4c32
64
多图片上传.html
64
多图片上传.html
|
|
@ -1,5 +1,14 @@
|
|||
<HTML>
|
||||
<HEAD>
|
||||
</HEAD>
|
||||
<BODY>
|
||||
<input type="button" value="添加图片" id="btnAdd" onclick="selectAttachment()">
|
||||
<input type="button" value="清空图片" id="btnClear" style="display:none" onclick="clearAttachment()">
|
||||
<div id="attachmentList" style="display:none"></div>
|
||||
<div id="total">当前选择上传0个图片</div>
|
||||
<form id='pics' action="#">
|
||||
</form>
|
||||
<input type="submit" value="上传">
|
||||
<script type="text/javascript">
|
||||
var pic_num = 0,pic_maxnum = 5; // 用来动态生成span,upfile的id,一次上传图片数量接口
|
||||
function addAttachmentToList()
|
||||
|
|
@ -8,40 +17,51 @@ function addAttachmentToList()
|
|||
var o = G('pics').getElementsByTagName('input');
|
||||
var len = o.length-1;
|
||||
G('pics').removeChild(o[len]);
|
||||
pic_num--;
|
||||
return;
|
||||
}; //如果此文档已在图片列表中则不再添加
|
||||
if(extractFileName(event.srcElement.value)){
|
||||
// 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' + pic_num;
|
||||
span.innerHTML = extractFileName(event.srcElement.value) + ' <a href="javascript:delAttachment(' + (pic_num++) + ')">删除</a><br/>';
|
||||
span.innerHTML = extractFileName(event.srcElement.value) + ' <a href="javascript:delAttachment(' + pic_num + ')">删除</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')
|
||||
if(G('attachmentList').getElementsByTagName('span').length > 0)
|
||||
{
|
||||
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();
|
||||
if(pic_num < pic_maxnum ) {//图片数量控制
|
||||
pic_num++;
|
||||
if(pic_num <= pic_maxnum ) {//图片数量控制
|
||||
var upfile = '<input type="file" style="display:none" onchange="addAttachmentToList();" id="_upfile'+ pic_num +'">';// 动态创建上传控件并与span对应
|
||||
G('pics').insertAdjacentHTML('beforeEnd', upfile);
|
||||
G('_upfile'+pic_num).click();
|
||||
var o = G('pics').getElementsByTagName('input');
|
||||
alert(o.length);
|
||||
var tick=setTimeout(function(){
|
||||
var m = G('attachmentList').getElementsByTagName('span');
|
||||
if(o.length > m.length){
|
||||
var len = o.length-1;
|
||||
G("pics").removeChild(o[len]);
|
||||
}
|
||||
},1000*5);
|
||||
}
|
||||
else {
|
||||
alert("一次只能上传"+pic_maxnum+"张图片！");
|
||||
return ;
|
||||
}
|
||||
else alert("一次只能上传"+pic_maxnum+"张图片！");
|
||||
|
||||
}
|
||||
//判断图片格式
|
||||
|
|
@ -52,7 +72,7 @@ function extractFileName(fn)
|
|||
return fn.substr(fn.lastIndexOf('\\')+1);
|
||||
}
|
||||
else{
|
||||
alert("请上传png或jpg格式的图片！");
|
||||
("请上传png或jpg格式的图片！");
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -61,16 +81,20 @@ function extractFileName(fn)
|
|||
function findAttachment(fn)
|
||||
{
|
||||
var o = G('attachmentList').getElementsByTagName('span');
|
||||
for(var i=0;i<o.length;i++)
|
||||
if (o[i].title == fn) return true;
|
||||
else return false;
|
||||
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));
|
||||
G('pics').removeChild(G('_upfile'+id));
|
||||
|
||||
pic_num--;
|
||||
// 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)
|
||||
{
|
||||
|
|
@ -91,6 +115,7 @@ function cleanInvalidUpfile()
|
|||
{
|
||||
if (!G('_attachment'+o[i].id.substr(7)))
|
||||
G('pics').removeChild(o[i]);
|
||||
pic_num--;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -100,14 +125,13 @@ 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)
|
||||
{
|
||||
G('pics').removeChild(o[i]);
|
||||
}
|
||||
|
||||
pic_num=0;
|
||||
G('btnAdd').value = '添加图片';
|
||||
G('attachmentList').style.display = 'none';
|
||||
G('btnClear').style.display = 'none';
|
||||
|
|
@ -118,15 +142,7 @@ function G(id)
|
|||
{
|
||||
return document.getElementById(id);
|
||||
}
|
||||
|
||||
</script>
|
||||
</HEAD>
|
||||
<BODY>
|
||||
<input type="button" value="添加图片" id="btnAdd" onclick="selectAttachment()">
|
||||
<input type="button" value="清空图片" id="btnClear" style="display:none" onclick="clearAttachment()">
|
||||
<div id="attachmentList" style="display:none"></div>
|
||||
<div id="total">当前选择上传0个图片</div>
|
||||
<form id='pics' action="#">
|
||||
<div><input type="submit" value="上传"></div>
|
||||
</form>
|
||||
</BODY>
|
||||
</HTML>
|
||||
Loading…
Reference in New Issue