new panel for attachments added but it has to be finished

git-svn-id: http://svn.research-infrastructures.eu/public/d4science/gcube/trunk/portlets/user/news-feed@122327 82a268e6-3cf1-43bd-a215-b396298e98cf

src/main/java/org/gcube/portlets/user/newsfeed/client/ui/AttachmentPreviewer.java

@@ -0,0 +1,72 @@
+package org.gcube.portlets.user.newsfeed.client.ui;
+
+import org.gcube.portal.databook.shared.Attachment;
+
+import com.google.gwt.core.client.GWT;
+import com.google.gwt.event.dom.client.ClickEvent;
+import com.google.gwt.event.dom.client.ClickHandler;
+import com.google.gwt.uibinder.client.UiBinder;
+import com.google.gwt.uibinder.client.UiField;
+import com.google.gwt.user.client.Window;
+import com.google.gwt.user.client.ui.Composite;
+import com.google.gwt.user.client.ui.Image;
+import com.google.gwt.user.client.ui.Label;
+import com.google.gwt.user.client.ui.Widget;
+
+/**
+ * Shows an attachment
+ * @author Costantino Perciante at ISTI-CNR
+ *
+ */
+public class AttachmentPreviewer extends Composite{
+
+	private static AttachmentPreviewerUiBinder uiBinder = GWT
+			.create(AttachmentPreviewerUiBinder.class);
+
+	interface AttachmentPreviewerUiBinder extends
+	UiBinder<Widget, AttachmentPreviewer> {
+	}
+
+	public AttachmentPreviewer() {
+		initWidget(uiBinder.createAndBindUi(this));
+	}
+
+	@UiField
+	Image attachmentPreviewImage;
+
+	@UiField
+	Label attachmentFileName;
+
+	// save the attachment
+	private Attachment attachment;
+
+	public AttachmentPreviewer(final Attachment attachment) {
+		initWidget(uiBinder.createAndBindUi(this));
+
+		// print attachment
+		printJSLOG(attachment.toString());
+
+		// save it
+		this.attachment = attachment;
+
+		// set label
+		attachmentFileName.setText(attachment.getName());
+
+		// set thumbnail
+		if(attachment.getThumbnailURL() != null)
+			attachmentPreviewImage.setUrl(attachment.getThumbnailURL());
+
+		attachmentPreviewImage.addClickHandler(new ClickHandler() {
+
+			@Override
+			public void onClick(ClickEvent event) {
+				Window.open(attachment.getUri(), "_parent", "");
+
+			}
+		});
+	}
+
+	private static native void printJSLOG(String msg)/*-{
+		console.log(msg);
+	}-*/;
+}

src/main/java/org/gcube/portlets/user/newsfeed/client/ui/AttachmentPreviewer.ui.xml

@@ -0,0 +1,9 @@
+<!DOCTYPE ui:UiBinder SYSTEM "http://dl.google.com/gwt/DTD/xhtml.ent">
+<ui:UiBinder xmlns:ui="urn:ui:com.google.gwt.uibinder"
+	xmlns:g="urn:import:com.google.gwt.user.client.ui">
+	<g:AbsolutePanel>
+	<g:Label ui:field="attachmentFileName"></g:Label>
+		<g:Image ui:field="attachmentPreviewImage">
+		</g:Image>
+	</g:AbsolutePanel>
+</ui:UiBinder> 

src/main/java/org/gcube/portlets/user/newsfeed/client/ui/TweetTemplate.java

@@ -36,6 +36,7 @@ import com.google.gwt.uibinder.client.UiHandler;
 import com.google.gwt.user.client.Timer;
 import com.google.gwt.user.client.Window;
 import com.google.gwt.user.client.ui.Composite;
+import com.google.gwt.user.client.ui.FlowPanel;
 import com.google.gwt.user.client.ui.HTML;
 import com.google.gwt.user.client.ui.HTMLPanel;
 import com.google.gwt.user.client.ui.Image;
@@ -44,7 +45,8 @@ import com.google.gwt.user.client.ui.VerticalPanel;
 import com.google.gwt.user.client.ui.Widget;
 
 /**
- * @author Massimiliano Assante. ISTI-CNR
+ * @author Massimiliano Assante at ISTI-CNR
+ * @author Costantino Perciante at ISTI-CNR
  *
  */
 public class TweetTemplate extends Composite {
@@ -111,6 +113,8 @@ public class TweetTemplate extends Composite {
 	@UiField 
 	VerticalPanel previewPanel;
 	@UiField 
+	FlowPanel attachmentPreviewPanel;
+	@UiField
 	Label messageSeparator;
 	/**
 	 *  used when fetching tweets from server
@@ -128,7 +132,9 @@ public class TweetTemplate extends Composite {
 		this.myFeed = myFeed;
 		isAppFeed = myFeed.getFeed().isApplicationFeed();
 		Feed feed = myFeed.getFeed();
-		if (feed.getUri() != null && feed.getUri().compareTo("") != 0 && feed.getLinkTitle() != null && feed.getLinkTitle().compareTo("") != 0 ) {
+
+		// if there is one attachment, maintain retro compatibility
+		if (feed.getUri() != null && feed.getUri().compareTo("") != 0 && feed.getLinkTitle() != null && feed.getLinkTitle().compareTo("") != 0  && !feed.isMultiFileUpload()) {
 			previewPanel.add(new LinkPreviewer(feed.getLinkTitle(), feed.getLinkDescription(), feed.getLinkHost(), feed.getUriThumbnail(), feed.getUri()));
 		}
 		this.eventBus = eventBus;
@@ -141,12 +147,27 @@ public class TweetTemplate extends Composite {
 		} else {
 			closeImage.removeFromParent();
 		}
+
+		// in case there are attachments, we have to fill attachmentPreviewPanel instead of the previewPanel
 		if(myFeed.getAttachments() != null){
-			GWT.log("# attachments: "+myFeed.getAttachments().size());
-			if (myFeed.getAttachments().size() > 0) {
-				for (Attachment a : myFeed.getAttachments()) {
-					GWT.log(a.toString());
-				}
+
+			// remember that one attachment is stored in the fields: uri, uriThumbnail, linkTitle,  linkDescription, linkHost
+			// build up an attachment
+			Attachment firstAttachment = new Attachment(
+					feed.getKey(), // it is meaningless but it's needed
+					feed.getUri(), 
+					feed.getLinkTitle(), 
+					feed.getLinkDescription(), 
+					feed.getUriThumbnail(), 
+					feed.getLinkHost());
+
+			// add it to the panel
+			attachmentPreviewPanel.add(new AttachmentPreviewer(firstAttachment));
+
+			for (Attachment a : myFeed.getAttachments()) {
+
+				attachmentPreviewPanel.add(new AttachmentPreviewer(a));
+
 			}
 		}
 

src/main/java/org/gcube/portlets/user/newsfeed/client/ui/TweetTemplate.ui.xml

@@ -16,6 +16,7 @@
 						<g:HTML styleName="" ui:field="seeMore" />
 					</div>
 					<g:VerticalPanel ui:field="previewPanel"></g:VerticalPanel>
+					<g:FlowPanel ui:field="attachmentPreviewPanel"></g:FlowPanel>
 					<div class="tweet-actions">
 						<table cellspacing="0" cellpadding="0">
 							<tbody>

src/main/java/org/gcube/portlets/user/newsfeed/server/NewsServiceImpl.java

@@ -124,7 +124,7 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 	 */
 	public String getDevelopmentUser() {
 		String user = NewsConstants.TEST_USER;
-		//		user = "andrea.rossi";
+//		user = "costantino.perciante";
 		return user;
 	}
 	/**
@@ -211,9 +211,6 @@ public class NewsServiceImpl extends RemoteServiceServlet implements NewsService
 		}		
 	}
 
-
-
-
 	@Override
 	public ArrayList<EnhancedFeed> getAllUpdateUserFeeds(int feedsNoPerCategory) {
 		String userName = getASLSession().getUsername();