web uploader 支持删除文件吗

Posted 2023-05-06

参考技术A <div id="uploader">
<div class="queueList">
<div id="dndArea" class="placeholder">
<div id="filePicker"></div>
<p>或将照片拖到这里，单次最多可选30张</p>
</div>
</div>
<div class="statusBar" style="display:none;">
<div class="progress">
<span class="text">0%</span>
<span class="percentage"></span>
</div><div class="info"></div>
<div class="btns">
<div id="filePicker2"></div><div class="uploadBtn">开始上传</div>
</div>
</div>
</div>

<script>
require(['jquery', 'webuploader' ], function($, WebUploader)
return;
// 当domReady的时候开始初始化
$(function()
var $wrap = $('#uploader'),

// 图片容器
$queue = $( '<ul class="filelist"></ul>' )
.appendTo( $wrap.find( '.queueList' ) ),

// 状态栏，包括进度和控制按钮
$statusBar = $wrap.find( '.statusBar' ),

// 文件总体选择信息。
$info = $statusBar.find( '.info' ),

// 上传按钮
$upload = $wrap.find( '.uploadBtn' ),

// 没选择文件之前的内容。
$placeHolder = $wrap.find( '.placeholder' ),

$progress = $statusBar.find( '.progress' ).hide(),

// 添加的文件数量
fileCount = 0,

// 添加的文件总大小
fileSize = 0,

// 优化retina, 在retina下这个值是2
ratio = window.devicePixelRatio || 1,

// 缩略图大小
thumbnailWidth = 110 * ratio,
thumbnailHeight = 110 * ratio,

// 可能有pedding, ready, uploading, confirm, done.
state = 'pedding',

// 所有文件的进度信息，key为file id
percentages = ,

supportTransition = (function()
var s = document.createElement('p').style,
r = 'transition' in s ||
'WebkitTransition' in s ||
'MozTransition' in s ||
'msTransition' in s ||
'OTransition' in s;
s = null;
return r;
)(),

// WebUploader实例
uploader;

// 实例化
uploader = WebUploader.create(
pick:
id: '#filePicker',
label: '点击选择图片'
,
dnd: '#dndArea',
paste: '#uploader',
// swf文件路径
swf: '$_W['siteroot']app/resource/componets/webuploader/Uploader.swf',
// 文件接收服务端。
server: '$_W['siteroot']app/php echo str_replace('./','',url('utility/file',array('do'=>'upload', 'type'=>'image'), true))',
chunked: true,
// runtimeOrder: 'flash',
// sendAsBinary: true,
fileNumLimit: 30,
fileSizeLimit: 30 * 1024 * 1024, // 30 M
fileSingleSizeLimit: 4 * 1024 * 1024 // 1 M
);

// 添加“添加文件”的按钮，
uploader.addButton(
id: '#filePicker2',
label: '继续添加'
);

// 当有文件添加进来时执行，负责view的创建
function addFile( file )
var $li = $( '<li id="' + file.id + '">' +
'<p class="title">' + file.name + '</p>' +
'<p class="imgWrap"></p>'+
'<p class="progress"><span></span></p>' +
'</li>' ),
$btns = $('<div class="file-panel">' +
'<span class="cancel">删除</span>' +
'<span class="rotateRight">向右旋转</span>' +
'<span class="rotateLeft">向左旋转</span></div>').appendTo( $li ),
$prgress = $li.find('p.progress span'),
$wrap = $li.find( 'p.imgWrap' ),
$info = $('<p class="error"></p>'),

showError = function( code )
switch( code )
case 'exceed_size':
text = '文件大小超出';
break;

case 'interrupt':
text = '上传暂停';
break;

default:
text = '上传失败，请重试';
break;


$info.text( text ).appendTo( $li );
;

if ( file.getStatus() === 'invalid' )
showError( file.statusText );
else
// @todo lazyload
$wrap.text( '预览中' );
uploader.makeThumb( file, function( error, src )
if ( error )
$wrap.text( '不能预览' );
return;


var img = $('<img src="'+src+'">');
$wrap.empty().append( img );
, thumbnailWidth, thumbnailHeight );

percentages[ file.id ] = [ file.size, 0 ];
file.rotation = 0;


file.on('statuschange', function( cur, prev )
if ( prev === 'progress' )
$prgress.hide().width(0);
else if ( prev === 'queued' )
$li.off( 'mouseenter mouseleave' );
$btns.remove();

// 成功
if ( cur === 'error' || cur === 'invalid' )
console.log( file.statusText );
showError( file.statusText );
percentages[ file.id ][ 1 ] = 1;
else if ( cur === 'interrupt' )
showError( 'interrupt' );
else if ( cur === 'queued' )
percentages[ file.id ][ 1 ] = 0;
else if ( cur === 'progress' )
$info.remove();
$prgress.css('display', 'block');
else if ( cur === 'complete' )
$li.append( '<span class="success"></span>' );

$li.removeClass( 'state-' + prev ).addClass( 'state-' + cur );
);

$li.on( 'mouseenter', function()
$btns.stop().animate(height: 30);
);

$li.on( 'mouseleave', function()
$btns.stop().animate(height: 0);
);

$btns.on( 'click', 'span', function()
var index = $(this).index(),
deg;

switch ( index )
case 0:
uploader.removeFile( file );
return;

case 1:
file.rotation += 90;
break;

case 2:
file.rotation -= 90;
break;


if ( supportTransition )
deg = 'rotate(' + file.rotation + 'deg)';
$wrap.css(
'-webkit-transform': deg,
'-mos-transform': deg,
'-o-transform': deg,
'transform': deg
);
else
$wrap.css( 'filter', 'progid:DXImageTransform.Microsoft.BasicImage(rotation='+ (~~((file.rotation/90)%4 + 4)%4) +')');

);
$li.appendTo( $queue );


// 负责view的销毁
function removeFile( file )
var $li = $('#'+file.id);
delete percentages[ file.id ];
updateTotalProgress();
$li.off().find('.file-panel').off().end().remove();


function updateTotalProgress()
var loaded = 0,
total = 0,
spans = $progress.children(),
percent;

$.each( percentages, function( k, v )
total += v[ 0 ];
loaded += v[ 0 ] * v[ 1 ];
);

percent = total ? loaded / total : 0;

spans.eq( 0 ).text( Math.round( percent * 100 ) + '%' );
spans.eq( 1 ).css( 'width', Math.round( percent * 100 ) + '%' );
updateStatus();


function updateStatus()
var text = '', stats;

if ( state === 'ready' )
text = '选中' + fileCount + '张图片，共' + WebUploader.formatSize( fileSize ) + '。';
else if ( state === 'confirm' )
stats = uploader.getStats();
if ( stats.uploadFailNum )
text = '已成功上传' + stats.successNum+ '张照片至XX相册，'+
stats.uploadFailNum + '张照片上传失败，<a class="retry" href="#">重新上传</a>失败图片或<a class="ignore" href="#">忽略</a>'

else
stats = uploader.getStats();
text = '共' + fileCount + '张（' +
WebUploader.formatSize( fileSize ) +
'），已上传' + stats.successNum + '张';

if ( stats.uploadFailNum )
text += '，失败' + stats.uploadFailNum + '张';



$info.html( text );


function setState( val )
var file, stats;

if ( val === state )
return;


$upload.removeClass( 'state-' + state );
$upload.addClass( 'state-' + val );
state = val;

switch ( state )
case 'pedding':
$placeHolder.removeClass( 'element-invisible' );
$queue.hide();
$statusBar.addClass( 'element-invisible' );
uploader.refresh();
break;

case 'ready':
$placeHolder.addClass( 'element-invisible' );
$( '#filePicker2' ).removeClass( 'element-invisible');
$queue.show();
$statusBar.removeClass('element-invisible');
uploader.refresh();
break;
case 'uploading':
$( '#filePicker2' ).addClass( 'element-invisible' );
$progress.show();
$upload.text( '暂停上传' );
break;
case 'paused':
$progress.show();
$upload.text( '继续上传' );
break;
case 'confirm':
$progress.hide();
$upload.text( '开始上传' ).addClass( 'disabled' );
stats = uploader.getStats();
if ( stats.successNum && !stats.uploadFailNum )
setState( 'finish' );
return;

break;
case 'finish':
stats = uploader.getStats();
if ( stats.successNum )
alert( '上传成功' );
else
// 没有成功的图片，重设
state = 'done';
location.reload();

break;

updateStatus();


uploader.onUploadProgress = function( file, percentage )
var $li = $('#'+file.id),
$percent = $li.find('.progress span');

$percent.css( 'width', percentage * 100 + '%' );
percentages[ file.id ][ 1 ] = percentage;
updateTotalProgress();
;

uploader.onFileQueued = function( file )
fileCount++;
fileSize += file.size;

if ( fileCount === 1 )
$placeHolder.addClass( 'element-invisible' );
$statusBar.show();


addFile( file );
setState( 'ready' );
updateTotalProgress();
;

uploader.onFileDequeued = function( file )
fileCount--;
fileSize -= file.size;

if ( !fileCount )
setState( 'pedding' );


removeFile( file );
updateTotalProgress();
;

uploader.on( 'all', function( type )
var stats;
switch( type )
case 'uploadFinished':
setState( 'confirm' );
break;
case 'startUpload':
setState( 'uploading' );
break;
case 'stopUpload':
setState( 'paused' );
break;

);

uploader.onError = function( code )
alert( 'Eroor: ' + code );
;

$upload.on('click', function()
if ( $(this).hasClass( 'disabled' ) )
return false;

if ( state === 'ready' )
uploader.upload();
else if ( state === 'paused' )
uploader.upload();
else if ( state === 'uploading' )
uploader.stop();

);

$info.on( 'click', '.retry', function()
uploader.retry();
);

$info.on( 'click', '.ignore', function()
alert( 'todo' );
);

$upload.addClass( 'state-' + state );
updateTotalProgress();
);
);
</script>

upload组件支持上传的文件类型

upload组件支持上传的文件类型

input 中上传 accept 支持的文件类型

// 音视频
.3gpp  audio/3gpp， video/3gpp  
.ac3   audio/ac3   
.asf   allpication/vnd.ms-asf  
.au    audio/basic 
.ogg   application/ogg， audio/ogg  
.mp2   audio/mpeg， video/mpeg  
.mp3   audio/mpeg  
.mp4   audio/mp4， video/mp4   
//图片
.jp2   image/jp2   
.jpe   image/jpeg  
.jpeg  image/jpeg  
.jpg   image/jpeg  
.mpeg  video/mpeg  
.mpg   video/mpeg 
.dwg   image/vnd.dwg   
.dxf   image/vnd.dxf   
.gif   image/gif   
//文件
.doc   application/msword  
.dot   application/msword  
.dtd   application/xml-dtd 
.mpp   application/vnd.ms-project  
.pdf   application/pdf 
.png   image/png   
.pot   application/vnd.ms-powerpoint   
.pps   application/vnd.ms-powerpoint   
.ppt   application/vnd.ms-powerpoint  
.rtf   application/rtf， text/rtf  
.svf   image/vnd.svf  
.tif   image/tiff  
.tiff  image/tiff  
.txt   text/plain  
.wdb   application/vnd.ms-works    
.wps   application/vnd.ms-works    
.xhtml application/xhtml+xml   
.xlc   application/vnd.ms-excel    
.xlm   application/vnd.ms-excel    
.xls   application/vnd.ms-excel    
.xlt   application/vnd.ms-excel    
.xlw   application/vnd.ms-excel    
.xml   text/xml， application/xml   
.css   text/css    
.csv   text/csv    
.htm   text/html   
.html  text/html   
.js    text/javascript， 
.json  application/json    
.zip   aplication/zip