Index: lams_central/web/questions/questionFile.jsp
===================================================================
diff -u -re376b240aecf9b255b8b26fe22c3d33c70f67ddb -rcf258bae4dd72eab7a6f5bc895b96966caafaf06
--- lams_central/web/questions/questionFile.jsp	(.../questionFile.jsp)	(revision e376b240aecf9b255b8b26fe22c3d33c70f67ddb)
+++ lams_central/web/questions/questionFile.jsp	(.../questionFile.jsp)	(revision cf258bae4dd72eab7a6f5bc895b96966caafaf06)
@@ -2,10 +2,9 @@
 <%@ include file="/common/taglibs.jsp"%>
 <%@ page import="org.lamsfoundation.lams.util.Configuration" %>
 <%@ page import="org.lamsfoundation.lams.util.ConfigurationKeys" %>
-<%@ page import="org.lamsfoundation.lams.util.FileValidatorUtil" %>
+<%@ page import="org.lamsfoundation.lams.util.FileUtil" %>
 <c:set var="UPLOAD_FILE_MAX_SIZE"><%=Configuration.get(ConfigurationKeys.UPLOAD_FILE_LARGE_MAX_SIZE)%></c:set>
-<c:set var="UPLOAD_FILE_MAX_SIZE_AS_USER_STRING"><%=FileValidatorUtil.formatSize(Configuration.getAsInt(ConfigurationKeys.UPLOAD_FILE_LARGE_MAX_SIZE))%></c:set>
-<c:set var="EXE_FILE_TYPES"><%=Configuration.get(ConfigurationKeys.EXE_EXTENSIONS)%></c:set>
+<c:set var="tmpFileUploadId"><%=FileUtil.generateTmpFileUploadId()%></c:set>
 <c:set var="title" scope="request">
 	<c:choose>
 		<c:when test="${param.importType == 'word'}">
@@ -22,63 +21,138 @@
 	<title><fmt:message key="title.lams" /> :: ${title}</title>
 
 	<lams:css />
+	<link href="/lams/css/uppy.min.css" rel="stylesheet" type="text/css" />
 	<style type="text/css">
-	.button {
-		float: right;
-		margin-left: 10px;
-	}
-	
-	div#errorArea {
-		display: none;
-	}
+		.button {
+			float: right;
+			margin-left: 10px;
+		}
+		
+		div#errorArea {
+			display: none;
+		}
 	</style>
 
 	<script type="text/javascript" src="/lams/includes/javascript/jquery.js"></script>
-	<script type="text/javascript" src="/lams/includes/javascript/upload.js"></script>
+	
+	<script type="text/javascript" src="/lams/includes/javascript/uppy/uppy.min.js"></script>
+	<c:choose>
+		<c:when test="${language eq 'es'}">
+			<script type="text/javascript" src="/lams/includes/javascript/uppy/es_ES.min.js"></script>
+		</c:when>
+		<c:when test="${language eq 'fr'}">
+			<script type="text/javascript" src="/lams/includes/javascript/uppy/fr_FR.min.js"></script>
+		</c:when>
+		<c:when test="${language eq 'el'}">
+			<script type="text/javascript" src="/lams/includes/javascript/uppy/el_GR.min.js"></script>
+		</c:when>
+	</c:choose>
+		
 	<script type="text/javascript">
-		function verifyAndSubmit() {
-			var fileSelect = document.getElementById('file');
-			var files = fileSelect.files;
-				if (files.length == 0) {
-				clearFileError();
-				showFileError('<fmt:message key="button.select.importfile"/>');
-				return false;
-			} else {
-				var file = files[0];
-				if ( ! validateShowErrorNotExecutable(file, '<fmt:message key="error.attachment.executable"/>', false, '${EXE_FILE_TYPES}')
-						 || ! validateShowErrorFileSize(file, '${UPLOAD_FILE_MAX_SIZE}', '<fmt:message key="errors.maxfilesize"/>') ) {
-					return false;
-				}
-			}
+		/**
+		 * Initialise Uppy as the file upload widget
+		 */
+		var LAMS_URL = '<lams:LAMSURL/>',
+	 		UPLOAD_FILE_MAX_SIZE = '<c:out value="${UPLOAD_FILE_MAX_SIZE}"/>';
+			
+		function initFileUpload(tmpFileUploadId, language) {
+			var allowedFileTypes = ['.zip', '.xml'],
+  	  			uppyProperties = {
+				  // upload immediately 
+				  autoProceed: true,
+				  allowMultipleUploads: true,
+				  debug: false,
+				  restrictions: {
+					// taken from LAMS configuration
+				    maxFileSize: +UPLOAD_FILE_MAX_SIZE,
+				    maxNumberOfFiles: 1,
+				    allowedFileTypes : allowedFileTypes
+				  },
+				  meta: {
+					  // all uploaded files go to this subdir in LAMS tmp dir
+					  // its format is: upload_<userId>_<timestamp>
+					  'tmpFileUploadId' : tmpFileUploadId,
+					  'largeFilesAllowed' : true
+				  },
+				  onBeforeFileAdded: function(currentFile, files) {
+					  var name = currentFile.data.name,
+					  	  extensionIndex = name.lastIndexOf('.'),
+					  	  valid = allowedFileTypes.includes(name.substring(extensionIndex).trim());
+					  if (!valid) {
+						  uppy.info('<fmt:message key="label.questions.file.missing" />', 'error', 10000);
+					  }
+					  
+					  return valid;
+			    }
+			  };
+			  
+			  switch(language) {
+			  	case 'es' : uppyProperties.locale = Uppy.locales.es_ES; break; 
+				case 'fr' : uppyProperties.locale = Uppy.locales.fr_FR; break; 
+				case 'el' : uppyProperties.locale = Uppy.locales.el_GR; break; 
+			  }
+			  
+			  
+			  // global variable
+			  uppy = Uppy.Core(uppyProperties);
+			  // upload using Ajax
+			  uppy.use(Uppy.XHRUpload, {
+				  endpoint: LAMS_URL + 'tmpFileUpload',
+				  fieldName : 'file',
+				  // files are uploaded one by one
+				  limit : 1
+			  });
+			  
+			  uppy.use(Uppy.DragDrop, {
+				  target: '#image-upload-area',
+				  inline: true,
+				  height: 120,
+				  width: '100%'
+				});
 
-			document.getElementById('itemAttachment_Busy').style.display = '';
-			return true;
+
+			  uppy.use(Uppy.Informer, {
+				  target: '#image-upload-area'
+			  });
+			  
+			  uppy.use(Uppy.StatusBar, {
+				  target: '#image-upload-area',
+				  hideAfterFinish: false,
+				  hideUploadButton: true,
+				  hideRetryButton: true,
+				  hidePauseResumeButton: true,
+				  hideCancelButton: true
+				});
 		}
+		
+		$(document).ready(function(){
+			initFileUpload('${tmpFileUploadId}', '<lams:user property="localeLanguage"/>');
+		});	
 	</script>
 </lams:head>
 <body class="stripes">
 	<lams:Page type="admin" title="${title}">
 		<lams:errors/>				
 
-		<form id="questionForm" action="<lams:LAMSURL/>questions.do" enctype="multipart/form-data" method="post" onsubmit="return verifyAndSubmit();">
-			<input type="hidden" name="returnURL" value="${empty param.returnURL ? returnURL : param.returnURL}" />
+		<form id="questionForm" action="<lams:LAMSURL/>questions.do" enctype="multipart/form-data" method="post">
+			<input type="hidden" name="tmpFileUploadId" value="${tmpFileUploadId}" /> 
+			<input type="hidden" name="returnURL" value="${empty param.returnURL ? returnURL : param.returnURL}" /> 
 			<input type="hidden" name="importType" value="${empty param.importType ? importType : param.importType}" /> 
 			<input type="hidden" name="callerID" value="${empty param.callerID ? callerID : param.callerID}" /> 
 			<input type="hidden" name="limitType" value="${empty param.limitType ? limitType : param.limitType}" /> 
 			<input type="hidden" name="collectionChoice" value="${empty param.collectionChoice ? collectionChoice : param.collectionChoice}" /> 
-			<lams:FileUpload fileFieldname="file" fileInputMessageKey="label.file" maxFileSize="${UPLOAD_FILE_MAX_SIZE_AS_USER_STRING}"/>
-			<lams:WaitingSpinner id="itemAttachment_Busy"/>
 			
-			<div class="pull-right voffset5" id="buttonsDiv">
+			<div id="image-upload-area" class="voffset20"></div>
+			
+			<div class="pull-right voffset20" id="buttonsDiv">
 				<input class="btn btn-sm btn-default" value='<fmt:message key="button.cancel"/>' type="button"
 					onClick="javascript:window.close()" />
-				<button class="btn btn-sm btn-primary" value='<fmt:message key="label.upload"/>' type="submit">
+				<button id="importButton" class="btn btn-sm btn-primary" value='<fmt:message key="label.upload"/>' type="submit">
 					<fmt:message key="button.import" />
 				</button>
 			</div>
 		</form>
-		
 		<div id="footer"></div>
 	</lams:Page>
 </body>
-</lams:html>
+</lams:html>
\ No newline at end of file