Merge pull request #324 from helix84/DS-1475-collection-dropdown

DS-1475 Improvement of Collection Dropdown

dspace-api/src/main/java/org/dspace/app/util/CollectionDropDown.java

@@ -0,0 +1,74 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.util;
+
+import java.sql.SQLException;
+import org.dspace.content.Collection;
+import org.dspace.content.Community;
+import org.dspace.core.ConfigurationManager;
+
+/**
+ * Utility class for lists of collections.
+ */
+
+public class CollectionDropDown {
+
+    /**
+     * Get full path starting from a top-level community via subcommunities down to a collection.
+     * The full path will not be truncated.
+     * 
+     * @param col 
+     *            Get full path for this collection
+     * @return Full path to the collection
+     */
+    public static String collectionPath(Collection col) throws SQLException
+    {
+        return CollectionDropDown.collectionPath(col, 0);
+    }
+    
+    /**
+     * Get full path starting from a top-level community via subcommunities down to a collection.
+     * The full cat will be truncated to the specified number of characters and prepended with an ellipsis.
+     * 
+     * @param col 
+     *            Get full path for this collection
+     * @param maxchars 
+     *            Truncate the full path to maxchar characters. 0 means do not truncate.
+     * @return Full path to the collection (truncated)
+     */
+    public static String collectionPath(Collection col, int maxchars) throws SQLException
+    {
+        String separator = ConfigurationManager.getProperty("subcommunity.separator");
+        if (separator == null)
+        {
+            separator = " > ";
+        }
+        
+        Community[] getCom = null;
+        StringBuffer name = new StringBuffer("");
+        getCom = col.getCommunities(); // all communities containing given collection
+        for (Community com : getCom)
+        {
+            name.insert(0, com.getMetadata("name") + separator);
+        }
+
+        name.append(col.getMetadata("name"));
+
+        if (maxchars != 0)
+        {
+            int len = name.length();
+            if (len > maxchars)
+            {
+                name = new StringBuffer(name.substring(len - (maxchars - 1), len));
+                name.insert(0, "\u2026"); // prepend with an ellipsis (cut from left)
+            }
+        }
+
+        return name.toString();
+    }
+}

dspace-api/src/main/java/org/dspace/eperson/Subscribe.java

@@ -34,7 +34,9 @@ import org.dspace.content.Collection;
 import org.dspace.content.DCDate;
 import org.dspace.content.DCValue;
 import org.dspace.content.Item;
+import org.dspace.content.Site;
 import org.dspace.core.ConfigurationManager;
+import org.dspace.core.Constants;
 import org.dspace.core.Context;
 import org.dspace.core.Email;
 import org.dspace.core.I18nUtil;
@@ -201,6 +203,47 @@ public class Subscribe
         return (Collection[]) collections.toArray(collArray);
     }
 
+    /**
+     * Find out which collections the currently logged in e-person can subscribe to
+     *
+     * @param context
+     *            DSpace context
+     * @param eperson
+     *            EPerson
+     * @return array of collections the currently logged in e-person can subscribe to
+     */
+    public static Collection[] getAvailableSubscriptions(Context context)
+            throws SQLException
+    {
+        return getAvailableSubscriptions(context, null);
+    }
+    
+    /**
+     * Find out which collections an e-person can subscribe to
+     *
+     * @param context
+     *            DSpace context
+     * @param eperson
+     *            EPerson
+     * @return array of collections e-person can subscribe to
+     */
+    public static Collection[] getAvailableSubscriptions(Context context, EPerson eperson)
+            throws SQLException
+    {
+        Collection[] collections;
+        
+        if (eperson != null)
+        {
+            context.setCurrentUser(eperson);
+        }
+        
+        Site site = (Site) Site.find(context, 0);
+        
+        collections = Collection.findAuthorized(context, null, Constants.ADD);
+
+        return collections;
+    }
+
     /**
      * Is that e-person subscribed to that collection?
      *

dspace-api/src/main/resources/Messages.properties

@@ -731,6 +731,7 @@ jsp.mydspace.request.export.migratecollection                   = Export (migrat
 jsp.mydspace.request.export.migrateitem                         = Export (migrate) Item
 jsp.mydspace.subscriptions.info1                                = Your subscriptions have been updated.
 jsp.mydspace.subscriptions.info2                                = To subscribe to a collection, visit the collection's home page, and click on the "Subscribe" button.
+jsp.mydspace.subscriptions.select_collection                    = ( Select Collection )
 jsp.mydspace.subscriptions.info3                                = Below are the collections you are subscribed to.  You will be sent an e-mail each day detailing new items that have become available in these collections.  On days that no new items have appeared, no e-mail will be sent.
 jsp.mydspace.subscriptions.info4                                = You are not currently subscribed to any collections.
 jsp.mydspace.subscriptions.remove.button                        = Remove All Subscriptions

dspace-jspui/src/main/java/org/dspace/app/webui/servlet/SubscribeServlet.java

@@ -14,6 +14,7 @@ import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
+import org.dspace.app.util.CollectionDropDown;
 import org.dspace.app.webui.util.JSPManager;
 import org.dspace.app.webui.util.UIUtil;
 import org.dspace.authorize.AuthorizeException;
@@ -60,6 +61,22 @@ public class SubscribeServlet extends DSpaceServlet
 
             context.complete();
         }
+        else if (submit.equals("submit_subscribe"))
+        {
+            int collID = UIUtil.getIntParameter(request, "collection");
+            Collection c = Collection.find(context, collID);
+
+            // Sanity check - ignore duff values
+            if (c != null)
+            {
+                Subscribe.subscribe(context, e, c);
+            }
+
+            // Show the list of subscriptions
+            showSubscriptions(context, request, response, true);
+
+            context.complete();
+        }
         else if (submit.equals("submit_unsubscribe"))
         {
             int collID = UIUtil.getIntParameter(request, "collection");
@@ -102,10 +119,14 @@ public class SubscribeServlet extends DSpaceServlet
             HttpServletResponse response, boolean updated)
             throws ServletException, IOException, SQLException
     {
+        // collections the currently logged in user can subscribe to
+        Collection[] avail = Subscribe.getAvailableSubscriptions(context);
+        
         // Subscribed collections
         Collection[] subs = Subscribe.getSubscriptions(context, context
                 .getCurrentUser());
 
+        request.setAttribute("availableSubscriptions", avail);
         request.setAttribute("subscriptions", subs);
         request.setAttribute("updated", Boolean.valueOf(updated));
 

dspace-jspui/src/main/webapp/mydspace/subscriptions.jsp

@@ -27,8 +27,11 @@
 
 <%@ page import="org.dspace.content.Community" %>
 <%@ page import="org.dspace.content.Collection" %>
+<%@ page import="org.dspace.app.util.CollectionDropDown" %>
 
 <%
+    Collection[] availableSubscriptions =
+        (Collection[]) request.getAttribute("availableSubscriptions");
     Collection[] subscriptions =
         (Collection[]) request.getAttribute("subscriptions");
     boolean updated =
@@ -49,10 +52,28 @@
     {
 %>
 	<p><strong><fmt:message key="jsp.mydspace.subscriptions.info1"/></strong></p>
+	<p><fmt:message key="jsp.mydspace.subscriptions.info2"/></p>
 <%
     }
 %>
-	<p><fmt:message key="jsp.mydspace.subscriptions.info2"/></p>
+        <form class="form-group" action="<%= request.getContextPath() %>/subscribe" method="post">
+        	<div class="col-md-6">
+            <select id="available-subscriptions" class="form-control" name="collection">
+                <option value="-1"><fmt:message key="jsp.mydspace.subscriptions.select_collection" /></option>
+<%
+    for (int i = 0; i < availableSubscriptions.length; i++)
+    {
+%>
+                <option value="<%= availableSubscriptions[i].getID() %>"><%= CollectionDropDown.collectionPath(availableSubscriptions[i], 0) %></option>
+<%
+    }
+%>
+            </select>
+            </div>
+            <input class="btn btn-success" type="submit" name="submit_subscribe" value="<fmt:message key="jsp.collection-home.subscribe"/>" />
+ 			<input class="btn btn-danger" type="submit" name="submit_clear" value="<fmt:message key="jsp.mydspace.subscriptions.remove.button"/>" />
+	</form>
+        
 <%
     if (subscriptions.length > 0)
     {
@@ -73,7 +94,7 @@
                   --%>
 
                  <td class="<%= row %>RowOddCol">
-                      <a href="<%= request.getContextPath() %>/handle/<%= subscriptions[i].getHandle() %>"><%= subscriptions[i].getMetadata("name") %></a>
+                      <a href="<%= request.getContextPath() %>/handle/<%= subscriptions[i].getHandle() %>"><%= CollectionDropDown.collectionPath(subscriptions[i],0) %></a>
                  </td>
                  <td class="<%= row %>RowEvenCol">
                     <form method="post" action=""> 
@@ -90,9 +111,6 @@
 
     <br/>
 
-        <form method="post" action="">
-    	    <input class="btn btn-danger" type="submit" name="submit_clear" value="<fmt:message key="jsp.mydspace.subscriptions.remove.button"/>" />
-        </form>
 <%
     }
     else

dspace-xmlui/src/main/java/org/dspace/app/xmlui/aspect/eperson/EditProfile.java

@@ -21,6 +21,7 @@ import org.apache.cocoon.environment.ObjectModelHelper;
 import org.apache.cocoon.environment.Request;
 import org.apache.cocoon.environment.SourceResolver;
 import org.apache.log4j.Logger;
+import org.dspace.app.util.CollectionDropDown;
 import org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
@@ -33,6 +34,7 @@ import org.dspace.app.xmlui.wing.element.PageMeta;
 import org.dspace.app.xmlui.wing.element.Select;
 import org.dspace.app.xmlui.wing.element.Text;
 import org.dspace.content.Collection;
+import org.dspace.content.Community;
 import org.dspace.core.ConfigurationManager;
 import org.dspace.core.I18nUtil;
 import org.dspace.core.LogManager;
@@ -40,6 +42,7 @@ import org.dspace.eperson.Group;
 import org.dspace.eperson.Subscribe;
 import org.xml.sax.SAXException;
 
+
 /**
  * Display a form that allows the user to edit their profile.
  * There are two cases in which this can be used: 1) when an
@@ -374,12 +377,7 @@ public class EditProfile extends AbstractDSpaceTransformer
            subscriptions.addOption(-1,T_select_collection);
            for (Collection possible : possibleList)
            {
-               String name = possible.getMetadata("name");
-               if (name.length() > 50)
-               {
-                   name = name.substring(0, 47) + "...";
-               }
-               subscriptions.addOption(possible.getID(), name);
+               subscriptions.addOption(possible.getID(), CollectionDropDown.collectionPath(possible));
            }
                    
            for (Collection collection: currentList)

dspace-xmlui/src/main/java/org/dspace/app/xmlui/aspect/submission/submit/SelectCollectionStep.java

@@ -28,6 +28,8 @@ import org.dspace.core.Constants;
 import org.dspace.handle.HandleManager;
 import org.xml.sax.SAXException;
 
+import org.dspace.app.util.CollectionDropDown;
+
 /**
  * Allow the user to select a collection they wish to submit an item to, 
  * this step is sort-of but not officialy part of the item submission 
@@ -98,8 +100,7 @@ public class SelectCollectionStep extends AbstractSubmissionStep
         select.addOption("",T_collection_default);
         for (Collection collection : collections) 
         {
-        	String name = collection.getMetadata("name");
-        	select.addOption(collection.getHandle(),name);
+            select.addOption(collection.getHandle(), CollectionDropDown.collectionPath(collection));
         }
         
         Button submit = list.addItem().addButton("submit");