drop implementation for files, initial drag support for folders

[pithos] / src / gr / ebs / gss / client / CellTreeViewModel.java

diff --git a/src/gr/ebs/gss/client/CellTreeViewModel.java b/src/gr/ebs/gss/client/CellTreeViewModel.java
index aba69fe..363af4a 100644 (file)
--- a/src/gr/ebs/gss/client/CellTreeViewModel.java
+++ b/src/gr/ebs/gss/client/CellTreeViewModel.java
@@ -23,6 +23,7 @@ import gr.ebs.gss.client.CellTreeView.RefreshHandler;
 import gr.ebs.gss.client.rest.GetCommand;
 import gr.ebs.gss.client.rest.MultipleGetCommand;
 import gr.ebs.gss.client.rest.RestException;
+import gr.ebs.gss.client.rest.resource.FileResource;
 import gr.ebs.gss.client.rest.resource.FolderResource;
 import gr.ebs.gss.client.rest.resource.MyFolderResource;
 import gr.ebs.gss.client.rest.resource.OtherUserResource;
@@ -34,20 +35,31 @@ import gr.ebs.gss.client.rest.resource.SharedFolderResource;
 import gr.ebs.gss.client.rest.resource.SharedResource;
 import gr.ebs.gss.client.rest.resource.TrashFolderResource;
 import gr.ebs.gss.client.rest.resource.TrashResource;
+import gwtquery.plugins.draggable.client.DraggableOptions;
+import gwtquery.plugins.draggable.client.DraggableOptions.CursorAt;
+import gwtquery.plugins.draggable.client.DraggableOptions.DragFunction;
+import gwtquery.plugins.draggable.client.DraggableOptions.RevertOption;
+import gwtquery.plugins.draggable.client.events.DragContext;
 import gwtquery.plugins.droppable.client.DroppableOptions;
 import gwtquery.plugins.droppable.client.DroppableOptions.DroppableFunction;
 import gwtquery.plugins.droppable.client.events.DragAndDropContext;
 import gwtquery.plugins.droppable.client.gwt.DragAndDropNodeInfo;
 
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import static com.google.gwt.query.client.GQuery.$;
 
 import com.google.gwt.cell.client.AbstractCell;
 import com.google.gwt.cell.client.Cell;
 import com.google.gwt.cell.client.ValueUpdater;
 import com.google.gwt.core.client.GWT;
+import com.google.gwt.dom.client.Style.Cursor;
+import com.google.gwt.safehtml.client.SafeHtmlTemplates;
+import com.google.gwt.safehtml.client.SafeHtmlTemplates.Template;
+import com.google.gwt.safehtml.shared.SafeHtml;
 import com.google.gwt.safehtml.shared.SafeHtmlBuilder;
 import com.google.gwt.user.client.DeferredCommand;
 import com.google.gwt.user.client.ui.AbstractImagePrototype;
@@ -69,6 +81,42 @@ public class CellTreeViewModel implements TreeViewModel{
        final Images images;
        SingleSelectionModel<RestResource> selectionModel;
        Map<String, MyFolderDataProvider> mymap = new HashMap<String, MyFolderDataProvider>();
+       static interface Templates extends SafeHtmlTemplates {
+           Templates INSTANCE = GWT.create(Templates.class);
+
+           @Template(" <div id='dragHelper' class='{0}'></div>")
+           SafeHtml outerHelper(String cssClassName);
+         }
+
+       static void configureDragOperation(DraggableOptions options) {
+
+           // set a custom element as drag helper. The content of the helper will be
+           // set when the drag will start
+           options.setHelper($(Templates.INSTANCE.outerHelper(
+               "drag").asString()));
+           // opacity of the drag helper
+           options.setOpacity((float) 0.9);
+           // cursor during the drag operation
+           options.setCursor(Cursor.MOVE);
+           // the cell being greater than the helper, force the position of the
+           // helper on the mouse cursor.
+           options.setCursorAt(new CursorAt(10, 10, null, null));
+           // append the helper to the body element
+           options.setAppendTo("body");
+           // set the revert option
+           options.setRevert(RevertOption.ON_INVALID_DROP);
+           // use a Function to fill the content of the helper
+           // we could also add a DragStartEventHandler on the DragAndDropTreeCell and
+           // DragAndDropCellList.
+           options.setOnDragStart(new DragFunction() {
+             public void f(DragContext context) {
+               RestResourceWrapper memberInfo = context.getDraggableData();
+               context.getHelper().setInnerHTML(memberInfo.getName());
+             }
+           });
+
+         }
+
        /**
         * 
         */
@@ -135,7 +183,7 @@ public class CellTreeViewModel implements TreeViewModel{
        
        
        @Override
-       public <T> NodeInfo<?> getNodeInfo(T value) {
+       public <T> NodeInfo<?> getNodeInfo(final T value) {
                
                if(value==null){
                        return new DragAndDropNodeInfo<RestResource>(getRootNodes(), departmentCell,
@@ -156,12 +204,23 @@ public class CellTreeViewModel implements TreeViewModel{
                options.setOnDrop(new DroppableFunction() {
 
                  public void f(DragAndDropContext context) {
-                         GWT.log("DROPPED");
-                   
+                         
+                         DnDFolderPopupMenu popup ;
+                         if(context.getDraggableData() instanceof FileResource){
+                                 popup = new DnDFolderPopupMenu(images, ((MyFolderResource) context.getDroppableData()).getResource(), Arrays.asList(context.getDraggableData()));
+                         }
+                         else
+                                 popup = new DnDFolderPopupMenu(images, ((MyFolderResource) context.getDroppableData()).getResource(), context.getDraggableData());
+                         int left = context.getDroppable().getAbsoluteLeft() + 40;
+                  int top = context.getDroppable().getAbsoluteTop() + 20;
+                  popup.setPopupPosition(left, top);
+                        
+                         popup.show();
                  }
                });
                // permission cell are not draggable
-               n.setCellDroppableOnly();
+               //n.setCellDroppableOnly();
+               configureDragOperation(n.getDraggableOptions());
                return n;
                }
                else if (value instanceof SharedResource) {