Task #16020: Hide scrolling elements for student role.

src/main/webapp/app/view/FreetextAnswerPanel.js

@@ -318,7 +318,7 @@ Ext.define('ARSnova.view.FreetextAnswerPanel', {
 			var screenWidth = (window.innerWidth > 0) ? window.innerWidth : screen.width;
 			ARSnova.app.innerScrollPanel = this;
 
-			if (screenWidth > 700) {
+			if (screenWidth > 700 && ARSnova.app.userRole === ARSnova.app.USER_ROLE_SPEAKER) {
 				this.zoomButton.show();
 				this.initializeZoomComponents();
 			}

src/main/webapp/app/view/FreetextDetailAnswer.js

@@ -234,7 +234,7 @@ Ext.define('ARSnova.view.FreetextDetailAnswer', {
 			ARSnova.app.innerScrollPanel = this;
 			var screenWidth = (window.innerWidth > 0) ? window.innerWidth : screen.width;
 
-			if (screenWidth > 700) {
+			if (screenWidth > 700 && ARSnova.app.userRole === ARSnova.app.USER_ROLE_SPEAKER) {
 				this.zoomButton.show();
 				this.initializeZoomComponents();
 			}

src/main/webapp/app/view/feedbackQuestions/DetailsPanel.js

@@ -138,7 +138,6 @@ Ext.define('ARSnova.view.feedbackQuestions.DetailsPanel', {
 				scope: this,
 				handler: function () {
 					var panel = ARSnova.app.mainTabPanel.tabPanel.feedbackQuestionsPanel;
-	
 					ARSnova.app.questionModel.deleteInterposed(this.questionObj, {
 						success: function () {
 							me.questionObj.destroy();

src/main/webapp/app/view/feedbackQuestions/QuestionsPanel.js

@@ -67,7 +67,7 @@ Ext.define('ARSnova.view.feedbackQuestions.QuestionsPanel', {
 				ARSnova.app.mainTabPanel.tabPanel.feedbackQuestionsPanel.questionsPanel.updateTime();
 			},
 			interval: 1000 // 1 second
-		},
+		}
 	},
 
 	toolbar: null,