Ajax File Upload mit Vorschaubild


mgk89

Grünschnabel
Hallo,

ich bitte um eure Hilfe - meine Javascript Kenntnisse werden bei meinem Problem leider überstiegen:

Ich habe ein (fremdes) Script zum Laufen gebracht und etwas angepasst, das einen mehrfach Image-Uploader realisiert.

Nun möchte ich, dass in jeder Zeile des Uploads vorab ein Thumbnail des Bildes angezeigt wird - oder zumindest im Nachhinein bei erfolgreichem Upload.

Hier das Script wie es momentan schon läuft:

HTML:
<!DOCTYPE html>
<html>
  <head>
    <title>How to Upload multiple images jQuery Ajax using PHP | PGPGang.com</title>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
    <style type="text/css">
      img {border-width: 0}
      * {font-family:'Lucida Grande', sans-serif;}
    </style>
    <link href="css/uploadfilemulti.css" rel="stylesheet">
<script src="js/jquery-1.8.0.min.js"></script>
<script src="js/jquery.fileuploadmulti.min.js"></script>

  </head>
  <body>
<div id="mulitplefileuploader">Upload</div>

<div id="status"></div>
<script>

$(document).ready(function()
{

var settings = {
    url: "upload.php",
    method: "POST",
    allowedTypes:"jpg,png,gif",
    fileName: "myfile",
    multiple: true,
    onSuccess:function(files,data,xhr)
    {
        $("#status").html("<font color='green'>Upload is success</font>");
       
    },
    afterUploadAll:function()
    {
        alert("all images uploaded!!");
    },
    onError: function(files,status,errMsg)
    {       
        $("#status").html("<font color='red'>Upload is Failed</font>");
    }
}
$("#mulitplefileuploader").uploadFile(settings);

});
</script>
</body>
</html>


Hier die (leider sehr unübersichtliche) JS Datei:
Javascript:
(function(b){if(b.fn.ajaxForm==undefined){b.getScript("http://malsup.github.io/jquery.form.js")}var a={};a.fileapi=b("<input type='file'/>").get(0).files!==undefined;a.formdata=window.FormData!==undefined;b.fn.uploadFile=function(t){var r=b.extend({url:"",method:"POST",enctype:"multipart/form-data",formData:null,returnType:null,allowedTypes:"*",fileName:"file",formData:{},dynamicFormData:function(){return{}},maxFileSize:-1,maxFileCount:-1,multiple:true,dragDrop:true,autoSubmit:true,showCancel:true,showAbort:true,showDone:true,showDelete:false,showError:true,showStatusAfterSuccess:true,showStatusAfterError:true,showFileCounter:true,fileCounterStyle:"). ",showProgress:false,onSelect:function(s){return true},onSubmit:function(s,u){},onSuccess:function(u,s,v){},onError:function(v,s,u){},deleteCallback:false,afterUploadAll:false,uploadButtonClass:"upload",dragDropStr:"<span><b>Drag &amp; Drop Files</b></span>",abortStr:"Abort",cancelStr:"Cancel",deletelStr:"Delete",doneStr:"Done",multiDragErrorStr:"Multiple File Drag &amp; Drop is not allowed.",extErrorStr:"is not allowed. Allowed extensions: ",sizeErrorStr:"is not allowed. Allowed Max size: ",uploadErrorStr:"Upload is not allowed",maxFileCountErrorStr:" is not allowed. Maximum allowed files are:"},t);this.fileCounter=1;this.selectedFiles=0;this.fCounter=0;this.sCounter=0;this.tCounter=0;var d="upload-"+(new Date().getTime());this.formGroup=d;this.hide();this.errorLog=b("<div></div>");this.after(this.errorLog);this.responses=[];if(!a.formdata){r.dragDrop=false}if(!a.formdata){r.multiple=false}var m=this;var e=b("<div>"+b(this).html()+"</div>");b(e).addClass(r.uploadButtonClass);(function k(){if(b.fn.ajaxForm){if(r.dragDrop){var s=b('<div class="ajax-upload-dragdrop" style="vertical-align:top;"></div>');b(m).before(s);b(s).append(e);b(s).append(b(r.dragDropStr));f(m,r,s)}else{b(m).before(e)}q(m,d,r,e)}else{window.setTimeout(k,10)}})();this.startUpload=function(){b("."+this.formGroup).each(function(u,s){if(b(this).is("form")){b(this).submit()}})};this.stopUpload=function(){b(".upload-red").each(function(u,s){if(b(this).hasClass(m.formGroup)){b(this).click()}})};this.getResponses=function(){return this.responses};var g=false;function j(){if(r.afterUploadAll&&!g){g=true;(function s(){if(m.sCounter!=0&&(m.sCounter+m.fCounter==m.tCounter)){r.afterUploadAll(m);g=false}else{window.setTimeout(s,100)}})()}}function f(w,u,v){v.on("dragenter",function(s){s.stopPropagation();s.preventDefault();b(this).css("border","2px solid #000000")});v.on("dragover",function(s){s.stopPropagation();s.preventDefault()});v.on("drop",function(x){b(this).css("border","2px solid #000000");x.preventDefault();w.errorLog.html("");var s=x.originalEvent.dataTransfer.files;if(!u.multiple&&s.length>1){if(u.showError){b("<div style='color:red;'>"+u.multiDragErrorStr+"</div>").appendTo(w.errorLog)}return}if(u.onSelect(s)==false){return}l(u,w,s)});b(document).on("dragenter",function(s){s.stopPropagation();s.preventDefault()});b(document).on("dragover",function(s){s.stopPropagation();s.preventDefault();v.css("border","2px solid #000000")});b(document).on("drop",function(s){s.stopPropagation();s.preventDefault();v.css("border","2px solid #000000")})}function i(s){var v="";var u=s/1024;if(parseInt(u)>1024){var w=u/1024;v=w.toFixed(2)+" MB"}else{v=u.toFixed(2)+" KB"}return v}function o(x){var y=[];if(jQuery.type(x)=="string"){y=x.split("&")}else{y=b.param(x).split("&")}var u=y.length;var s=[];var w,v;for(w=0;w<u;w++){y[w]=y[w].replace(/\+/g," ");v=y[w].split("=");s.push([decodeURIComponent(v[0]),decodeURIComponent(v[1])])}return s}function l(H,B,u){for(var C=0;C<u.length;C++){if(!c(B,H,u[ C].name)){if(H.showError){b("<div style='color:red;'><b>"+u[ C].name+"</b> "+H.extErrorStr+H.allowedTypes+"</div>").appendTo(B.errorLog)}continue}if(H.maxFileSize!=-1&&u[ C].size>H.maxFileSize){if(H.showError){b("<div style='color:red;'><b>"+u[ C].name+"</b> "+H.sizeErrorStr+i(H.maxFileSize)+"</div>").appendTo(B.errorLog)}continue}if(H.maxFileCount!=-1&&B.selectedFiles>=H.maxFileCount){if(H.showError){b("<div style='color:red;'><b>"+u[ C].name+"</b> "+H.maxFileCountErrorStr+H.maxFileCount+"</div>").appendTo(B.errorLog)}continue}B.selectedFiles++;var D=H;var w=new FormData();var A=H.fileName.replace("[]","");w.append(A,u[ C]);var y=H.formData;if(y){var F=o(y);for(var z=0;z<F.length;z++){if(F[z]){w.append(F[z][0],F[z][1])}}}D.fileData=w;var E=new p(B,H);var G="";if(H.showFileCounter){G=B.fileCounter+H.fileCounterStyle+u[ C].name}else{G=u[ C].name}E.filename.html(G);var v=b("<form style='display:block; position:absolute;left: 150px;' class='"+B.formGroup+"' method='"+H.method+"' action='"+H.url+"' enctype='"+H.enctype+"'></form>");v.appendTo("body");var x=[];x.push(u[ C].name);n(v,D,E,x,B);B.fileCounter++}}function c(w,v,y){var x=v.allowedTypes.toLowerCase().split(",");var u=y.split(".").pop().toLowerCase();if(v.allowedTypes!="*"&&jQuery.inArray(u,x)<0){return false}return true}function h(u,w){if(u.showFileCounter){var v=b(".upload-filename").length;w.fileCounter=v+1;b(".upload-filename").each(function(A,y){var s=b(this).html().split(u.fileCounterStyle);var x=parseInt(s[0])-1;var z=v+u.fileCounterStyle+s[1];b(this).html(z);v--})}}function q(y,B,D,u){var A="ajax-upload-id-"+(new Date().getTime());var w=b("<form method='"+D.method+"' action='"+D.url+"' enctype='"+D.enctype+"'></form>");var v="<input type='file' id='"+A+"' name='"+D.fileName+"'/>";if(D.multiple){if(D.fileName.indexOf("[]")!=D.fileName.length-2){D.fileName+="[]"}v="<input type='file' id='"+A+"' name='"+D.fileName+"' multiple/>"}var z=b(v).appendTo(w);z.change(function(){y.errorLog.html("");var K=D.allowedTypes.toLowerCase().split(",");var G=[];if(this.files){for(H=0;H<this.files.length;H++){G.push(this.files[H].name)}if(D.onSelect(this.files)==false){return}}else{var I=b(this).val();var F=[];G.push(I);if(!c(y,D,I)){if(D.showError){b("<div style='color:red;'><b>"+I+"</b> "+D.extErrorStr+D.allowedTypes+"</div>").appendTo(y.errorLog)}return}F.push({name:I,size:"NA"});if(D.onSelect(F)==false){return}}h(D,y);u.unbind("click");w.hide();q(y,B,D,u);w.addClass(B);if(a.fileapi&&a.formdata){w.removeClass(B);var J=this.files;l(D,y,J)}else{var E="";for(var H=0;H<G.length;H++){if(D.showFileCounter){E+=y.fileCounter+D.fileCounterStyle+G[H]+"<br>"}else{E+=G[H]+"<br>"}y.fileCounter++}if(D.maxFileCount!=-1&&(y.selectedFiles+G.length)>D.maxFileCount){if(D.showError){b("<div style='color:red;'><b>"+E+"</b> "+D.maxFileCountErrorStr+D.maxFileCount+"</div>").appendTo(y.errorLog)}return}y.selectedFiles+=G.length;var s=new p(y,D);s.filename.html(E);n(w,D,s,G,y)}});w.css({margin:0,padding:0});var C=b(u).width()+10;if(C==10){C=120}var x=u.height()+10;if(x==10){x=35}u.css({position:"relative",overflow:"hidden",cursor:"default"});z.css({position:"absolute",cursor:"pointer",top:"0px",width:C,height:x,left:"0px","z-index":"100",opacity:"0.0",filter:"alpha(opacity=0)","-ms-filter":"alpha(opacity=0)","-khtml-opacity":"0.0","-moz-opacity":"0.0"});w.appendTo(u)}function p(v,u){this.statusbar=b("<div class='upload-statusbar'></div>");this.filename=b("<div class='upload-filename'></div>").appendTo(this.statusbar);this.progressDiv=b("<div class='upload-progress'>").appendTo(this.statusbar).hide();this.progressbar=b("<div class='upload-bar "+v.formGroup+"'></div>").appendTo(this.progressDiv);this.abort=b("<div class='upload-red "+v.formGroup+"'>"+u.abortStr+"</div>").appendTo(this.statusbar).hide();this.cancel=b("<div class='upload-red'>"+u.cancelStr+"</div>").appendTo(this.statusbar).hide();this.done=b("<div class='upload-green'>"+u.doneStr+"</div>").appendTo(this.statusbar).hide();this.del=b("<div class='upload-red'>"+u.deletelStr+"</div>").appendTo(this.statusbar).hide();v.errorLog.after(this.statusbar);return this}function n(z,y,u,w,A){var x=null;var v={cache:false,contentType:false,processData:false,forceSync:false,data:y.formData,formData:y.fileData,dataType:y.returnType,beforeSubmit:function(F,C,E){if(y.onSubmit.call(this,w)!=false){var B=y.dynamicFormData();if(B){var s=o(B);if(s){for(var D=0;D<s.length;D++){if(s[D]){if(y.fileData!=undefined){E.formData.append(s[D][0],s[D][1])}else{E.data[s[D][0]]=s[D][1]}}}}}A.tCounter+=w.length;j();return true}u.statusbar.append("<div style='color:red;'>"+y.uploadErrorStr+"</div>");u.cancel.show();z.remove();u.cancel.click(function(){u.statusbar.remove()});return false},beforeSend:function(B,s){u.progressDiv.show();u.cancel.hide();u.done.hide();if(y.showAbort){u.abort.show();u.abort.click(function(){B.abort();A.selectedFiles-=w.length})}if(!a.formdata){u.progressbar.width("5%")}else{u.progressbar.width("1%")}},uploadProgress:function(E,s,D,C){if(C>98){C=98}var B=C+"%";if(C>1){u.progressbar.width(B)}if(y.showProgress){u.progressbar.html(B);u.progressbar.css("text-align","center")}},success:function(B,s,C){A.responses.push(B);u.progressbar.width("100%");if(y.showProgress){u.progressbar.html("100%");u.progressbar.css("text-align","center")}u.abort.hide();y.onSuccess.call(this,w,B,C);if(y.showStatusAfterSuccess){if(y.showDone){u.done.show();u.done.click(function(){u.statusbar.hide("slow");u.statusbar.remove()})}else{u.done.hide()}if(y.showDelete){u.del.show();u.del.click(function(){u.statusbar.hide().remove();if(y.deleteCallback){y.deleteCallback.call(this,B,u)}A.selectedFiles-=w.length;h(y,A)})}else{u.del.hide()}}else{u.statusbar.hide("slow");u.statusbar.remove()}z.remove();A.sCounter+=w.length},error:function(C,s,B){u.abort.hide();if(C.statusText=="abort"){u.statusbar.hide("slow").remove();h(y,A)}else{y.onError.call(this,w,s,B);if(y.showStatusAfterError){u.progressDiv.hide();u.statusbar.append("<span style='color:red;'>ERROR: "+B+"</span>")}else{u.statusbar.hide();u.statusbar.remove()}A.selectedFiles-=w.length}z.remove();A.fCounter+=w.length}};if(y.autoSubmit){z.ajaxSubmit(v)}else{if(y.showCancel){u.cancel.show();u.cancel.click(function(){z.remove();u.statusbar.remove();A.selectedFiles-=w.length;h(y,A)})}z.ajaxForm(v)}}return this}}(jQuery));
Im Idealfall würde ich gerne dieses Script http://www.it-gecko.de/html5-upload-thumbnails-vorschau-erstellen.html damit verbinden, um die Thumbs im Vorhinein anzuzeigen bzw. ein Link nach Upload in jedem DIV zum Original des hochgeladenen Bild wäre ideal.

Sorry für die mühsame Fragestellung, ich bin dankbar für eure Hilfe!

LG
Max
 
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