2016-10-14 01:03:49 +00:00
/ * S o c k e t I O F i l e U p l o a d C l i e n t - S i d e L i b r a r y
* Copyright ( C ) 2015 Shane Carr and others
* Released under the X11 License
* For more information , visit : https : //github.com/vote539/socketio-file-upload
* /
2017-01-14 18:43:40 +00:00
( function ( g , d , f ) { "function" === typeof define && define . amd ? define ( [ ] , f ) : "object" === typeof module && module . exports ? module . exports = f ( ) : g [ d ] = f ( ) } ) ( this , "SocketIOFileUpload" , function ( ) { return function ( g ) { var d = this ; if ( ! window . File || ! window . FileReader ) throw Error ( "Socket.IO File Upload: Browser Not Supported" ) ; window . siofu _global || ( window . siofu _global = { instances : 0 , downloads : 0 } ) ; var f = { } , p = { } , y = { } , q = { } , h = { } ; d . fileInputElementId = "siofu_input_" + siofu _global . instances ++ ; d . resetFileInputs = ! 0 ; d . useText = ! 1 ; d . serializedOctets =
! 1 ; d . useBuffer = ! 0 ; d . chunkSize = 102400 ; var t = function ( a , b ) { var c = document . createEvent ( "Event" ) ; c . initEvent ( a , ! 1 , ! 1 ) ; for ( var v in b ) b . hasOwnProperty ( v ) && ( c [ v ] = b [ v ] ) ; return d . dispatchEvent ( c ) } , r = [ ] , e = function ( a , b , c , d ) { a . addEventListener ( b , c , d ) ; r . push ( arguments ) } , z = function ( a , b , c , d ) { a . removeEventListener && a . removeEventListener ( b , c , d ) } , B = function ( ) { for ( var a = r . length - 1 ; 0 <= a ; a -- ) z . apply ( this , r [ a ] ) ; r = [ ] } , C = function ( a ) { if ( null !== d . maxFileSize && a . size > d . maxFileSize ) t ( "error" , { file : a , message : "Attempt by client to upload file exceeding the maximum file size" ,
code : 1 } ) ; else if ( t ( "start" , { file : a } ) ) { var b = new FileReader , c = siofu _global . downloads ++ , f = ! 1 , h = d . useText , w = 0 , r ; b . _realReader && ( b = b . _realReader ) ; p [ c ] = a ; var u = { id : c } , x = d . chunkSize ; if ( x >= a . size || 0 >= x ) x = a . size ; var n = function ( ) { if ( ! u . abort ) { var c = a . slice ( w , Math . min ( w + x , a . size ) ) ; h ? b . readAsText ( c ) : b . readAsArrayBuffer ( c ) } } , A = function ( e ) { if ( ! u . abort ) { var v = Math . min ( w + x , a . size ) ; a : { var p = w ; e = e . target . result ; var n = ! 1 ; if ( ! h ) try { var l = new Uint8Array ( e ) ; if ( d . serializedOctets ) e = l ; else if ( d . useBuffer ) e = l . buffer ; else { var n =
! 0 , m , q = l . buffer . byteLength , k = "" ; for ( m = 0 ; m < q ; m += 3 ) k += "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" [ l [ m ] >> 2 ] , k += "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" [ ( l [ m ] & 3 ) << 4 | l [ m + 1 ] >> 4 ] , k += "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" [ ( l [ m + 1 ] & 15 ) << 2 | l [ m + 2 ] >> 6 ] , k += "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/" [ l [ m + 2 ] & 63 ] ; 2 === q % 3 ? k = k . substring ( 0 , k . length - 1 ) + "=" : 1 === q % 3 && ( k = k . substring ( 0 , k . length - 2 ) + "==" ) ; e = k } } catch ( E ) { g . emit ( "siofu_done" ,
{ id : c , interrupt : ! 0 } ) ; break a } g . emit ( "siofu_progress" , { id : c , size : a . size , start : p , end : v , content : e , base64 : n } ) } t ( "progress" , { file : a , bytesLoaded : v , name : r } ) ; w += x ; w >= a . size && ( g . emit ( "siofu_done" , { id : c } ) , t ( "load" , { file : a , reader : b , name : r } ) , f = ! 0 ) } } ; e ( b , "load" , A ) ; e ( b , "error" , function ( ) { g . emit ( "siofu_done" , { id : c , interrupt : ! 0 } ) ; z ( b , "load" , A ) } ) ; e ( b , "abort" , function ( ) { g . emit ( "siofu_done" , { id : c , interrupt : ! 0 } ) ; z ( b , "load" , A ) } ) ; g . emit ( "siofu_start" , { name : a . name , mtime : a . lastModified , meta : a . meta , size : a . size , encoding : h ?
"text" : "octet" , id : c } ) ; q [ c ] = function ( a ) { r = a ; n ( ) } ; y [ c ] = function ( ) { f || n ( ) } ; return u } } , u = function ( a ) { if ( 0 !== a . length ) { for ( var b = 0 ; b < a . length ; b ++ ) a [ b ] . meta || ( a [ b ] . meta = { } ) ; if ( t ( "choose" , { files : a } ) ) for ( b = 0 ; b < a . length ; b ++ ) { var c = C ( a [ b ] ) ; h [ c . id ] = c } } } , n = function ( a ) { var b = a . target . files || a . dataTransfer . files ; a . preventDefault ( ) ; u ( b ) ; if ( d . resetFileInputs ) { try { a . target . value = "" } catch ( D ) { } if ( a . target . value ) { var b = document . createElement ( "form" ) , c = a . target . parentNode , e = a . target . nextSibling ; b . appendChild ( a . target ) ;
b . reset ( ) ; c . insertBefore ( a . target , e ) } } } ; this . submitFiles = function ( a ) { a && u ( a ) } ; this . listenOnSubmit = function ( a , b ) { b . files && e ( a , "click" , function ( ) { u ( b . files ) } , ! 1 ) } ; this . listenOnArraySubmit = function ( a , b ) { for ( var c in b ) this . listenOnSubmit ( a , b [ c ] ) } ; this . listenOnInput = function ( a ) { a . files && e ( a , "change" , n , ! 1 ) } ; this . listenOnDrop = function ( a ) { e ( a , "dragover" , function ( a ) { a . preventDefault ( ) } , ! 1 ) ; e ( a , "drop" , n ) } ; this . prompt = function ( ) { var a ; a = document . getElementById ( d . fileInputElementId ) ; a || ( a = document . createElement ( "input" ) ,
a . setAttribute ( "type" , "file" ) , a . setAttribute ( "id" , d . fileInputElementId ) , a . style . display = "none" , document . body . appendChild ( a ) ) ; e ( a , "change" , n , ! 1 ) ; var b = document . createEvent ( "MouseEvents" ) ; b . initMouseEvent ( "click" , ! 0 , ! 0 , window , 0 , 0 , 0 , 0 , 0 , ! 1 , ! 1 , ! 1 , ! 1 , 0 , null ) ; a . dispatchEvent ( b ) } ; this . destroy = function ( ) { B ( ) ; var a = document . getElementById ( d . fileInputElementId ) ; a && a . parentNode . removeChild ( a ) ; for ( var b in h ) h . hasOwnProperty ( b ) && ( h [ b ] . abort = ! 0 ) ; h = q = p = f = null } ; this . addEventListener = function ( a , b ) { f [ a ] || ( f [ a ] = [ ] ) ;
f [ a ] . push ( b ) } ; this . removeEventListener = function ( a , b ) { if ( ! f [ a ] ) return ! 1 ; for ( var c = 0 ; c < f [ a ] . length ; c ++ ) if ( f [ a ] [ c ] === b ) return f [ a ] . splice ( c , 1 ) , ! 0 ; return ! 1 } ; this . dispatchEvent = function ( a ) { var b = f [ a . type ] ; if ( ! b ) return ! 0 ; for ( var c = ! 0 , d = 0 ; d < b . length ; d ++ ) ! 1 === b [ d ] ( a ) && ( c = ! 1 ) ; return c } ; e ( g , "siofu_chunk" , function ( a ) { if ( y [ a . id ] ) y [ a . id ] ( ) } ) ; e ( g , "siofu_ready" , function ( a ) { if ( q [ a . id ] ) q [ a . id ] ( a . name ) } ) ; e ( g , "siofu_complete" , function ( a ) { p [ a . id ] && t ( "complete" , { file : p [ a . id ] , detail : a . detail , success : a . success } ) } ) ; e ( g ,
"siofu_error" , function ( a ) { p [ a . id ] && ( t ( "error" , { file : p [ a . id ] , message : a . message , code : 0 } ) , h && ( h [ a . id ] . abort = ! 0 ) ) } ) } } ) ;
