--- a/flys-client/src/main/java/de/intevation/flys/client/client/ui/DatacageWindow.java	Tue Aug 09 13:37:40 2011 +0000
+++ b/flys-client/src/main/java/de/intevation/flys/client/client/ui/DatacageWindow.java	Fri Aug 12 15:51:51 2011 +0000
@@ -7,6 +7,7 @@
 import com.smartgwt.client.util.SC;
 
 import com.smartgwt.client.widgets.Window;
+import com.smartgwt.client.widgets.Button;
 
 import com.smartgwt.client.widgets.tree.Tree;
 import com.smartgwt.client.widgets.tree.TreeGrid;
@@ -17,8 +18,13 @@
 import com.smartgwt.client.widgets.layout.Layout;
 import com.smartgwt.client.widgets.layout.VLayout;
 
-import com.smartgwt.client.widgets.tree.events.LeafClickEvent;
-import com.smartgwt.client.widgets.tree.events.LeafClickHandler;
+import com.smartgwt.client.widgets.events.ClickHandler;
+import com.smartgwt.client.widgets.events.ClickEvent;
+
+import com.smartgwt.client.widgets.grid.ListGridRecord;
+
+import com.smartgwt.client.widgets.grid.events.RecordDoubleClickEvent;
+import com.smartgwt.client.widgets.grid.events.RecordDoubleClickHandler;
 
 import de.intevation.flys.client.shared.model.Artifact;
 import de.intevation.flys.client.shared.model.ArtifactDescription;
@@ -26,6 +32,7 @@
 import de.intevation.flys.client.shared.model.DataList;
 import de.intevation.flys.client.shared.model.DataItem;
 import de.intevation.flys.client.shared.model.User;
+import de.intevation.flys.client.shared.model.ToLoad;
 
 import de.intevation.flys.client.client.FLYSConstants;
 import de.intevation.flys.client.client.Config;
@@ -39,6 +46,7 @@
 
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Stack;
 
 public class DatacageWindow
 extends      Window
@@ -58,13 +66,15 @@
 
     protected Layout layout;
 
+    protected List<ToLoad> toLoad;
+
 
     public DatacageWindow(Artifact artifact, User user) {
         this.artifact = artifact;
         this.user     = user;
 
-        setWidth(250);
-        setHeight(400);
+        setWidth(300);
+        setHeight(500);
 
         layout = new VLayout();
         layout.setWidth100();
@@ -83,15 +93,26 @@
         treeGrid.setHeight100();
         treeGrid.setShowRoot(false);
 
-        treeGrid.addLeafClickHandler(new LeafClickHandler() {
+        treeGrid.addRecordDoubleClickHandler(new RecordDoubleClickHandler() {
             @Override
-            public void onLeafClick(LeafClickEvent lce) {
-                GWT.log("I was here");
+            public void onRecordDoubleClick(RecordDoubleClickEvent event) {
+                doubleClickedOnTree(event);
             }
         });
 
         layout.addMember(treeGrid);
 
+        // TODO: i18n + icon
+        Button plusBtn = new Button("+");
+        plusBtn.addClickHandler(new ClickHandler() {
+            @Override
+            public void onClick(ClickEvent event) {
+                plusClicked();
+            }
+        });
+
+        layout.addMember(plusBtn);
+
         String river =  findRiver();
         // TODO: i18n
         setTitle("Datenkorb: " + river);
@@ -102,9 +123,73 @@
 
         centerInPage();
 
+        toLoad = new ArrayList<ToLoad>();
+
         triggerTreeBuilding();
     }
 
+    public List<ToLoad> toLoad() {
+        return toLoad;
+    }
+
+    public void plusClicked() {
+        if (treeGrid == null) {
+            return;
+        }
+
+        ListGridRecord [] selection = treeGrid.getSelection();
+
+        if (selection != null) {
+            for (ListGridRecord record: selection) {
+                if (record instanceof TreeNode) {
+                    collectToLoads((TreeNode)record);
+                }
+            }
+        }
+
+        GWT.log(toLoad.toString());
+
+        if (!toLoad.isEmpty()) {
+            destroy();
+        }
+    }
+
+    protected void doubleClickedOnTree(RecordDoubleClickEvent event) {
+
+        TreeNode node = (TreeNode)event.getRecord();
+        collectToLoads(node);
+        GWT.log(toLoad.toString());
+        destroy();
+    }
+
+    protected void collectToLoads(TreeNode node) {
+        Stack<TreeNode> stack = new Stack<TreeNode>();
+
+        stack.push(node);
+
+        while (!stack.isEmpty()) {
+            node = stack.pop();
+            String factory = node.getAttribute("factory");
+            if (factory != null) { // we need at least a factory
+                String ids        = node.getAttribute("ids");
+                String artifactId = node.getAttribute("artifact-id");
+                String num        = node.getAttribute("num");
+
+                ToLoad tl = new ToLoad(factory, artifactId, ids, num);
+                if (!toLoad.contains(tl)) {
+                    toLoad.add(tl);
+                }
+            }
+            TreeNode [] children = tree.getChildren(node);
+            if (children != null) {
+                for (TreeNode child: children) {
+                    stack.push(child);
+                }
+            }
+        }
+    }
+
+
     protected void triggerTreeBuilding() {
         Config config = Config.getInstance();
         String url    = config.getServerUrl();