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123 lines
4.0 KiB
Java
123 lines
4.0 KiB
Java
package org.gcube.portlets.user.workspace;
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import java.util.List;
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import org.gcube.portlets.user.workspace.client.interfaces.GXTFolderItemTypeEnum;
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import org.gcube.portlets.user.workspace.client.model.FileModel;
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import com.extjs.gxt.ui.client.dnd.DND.Operation;
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import com.extjs.gxt.ui.client.dnd.DropTarget;
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import com.extjs.gxt.ui.client.dnd.Insert;
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import com.extjs.gxt.ui.client.event.DNDEvent;
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import com.extjs.gxt.ui.client.store.TreeStoreModel;
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import com.extjs.gxt.ui.client.widget.HorizontalPanel;
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import com.extjs.gxt.ui.client.widget.Html;
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import com.extjs.gxt.ui.client.widget.LayoutContainer;
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import com.extjs.gxt.ui.client.widget.treepanel.TreePanel;
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import com.google.gwt.user.client.Element;
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/**
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* @author Francesco Mangiacrapa francesco.mangiacrapa{@literal @}isti.cnr.it
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*
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*/
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public class BasicDNDExample extends LayoutContainer {
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@Override
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protected void onRender(Element parent, int index) {
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super.onRender(parent, index);
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// El.fly(parent).addStyleName("dnd-example");
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HorizontalPanel hp = new HorizontalPanel();
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hp.setSpacing(10);
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final LayoutContainer container = new LayoutContainer();
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container.setLayoutOnChange(true);
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container.setBorders(true);
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container.setSize(200, 200);
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DropTarget target = new DropTarget(container) {
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@Override
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protected void onDragDrop(DNDEvent event) {
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super.onDragDrop(event);
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if(event.getData() != null){
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List<TreeStoreModel> listItemsSource = event.getData();
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System.out.println("Number of move " + listItemsSource.size());
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FileModel sourceFileModel = null; //for print
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for(TreeStoreModel itemSource : listItemsSource){
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sourceFileModel = (FileModel) itemSource.getModel();
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if(sourceFileModel.getParentFileModel()!=null)
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System.out.println("Source Name " + sourceFileModel.getName() + " id " + sourceFileModel.getIdentifier() + " end drag " + " Parent Name: " + sourceFileModel.getParentFileModel().getName() + "id " + sourceFileModel.getParentFileModel().getIdentifier());
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else
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System.out.println("Source Name " + sourceFileModel.getName() + " id " + sourceFileModel.getIdentifier() + " end drag ");
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System.out.println("Child count: " + itemSource.getChildCount());
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container.add(new Html(sourceFileModel.getName()));
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}
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}
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}
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@Override
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protected void showFeedback(DNDEvent event) {
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if (!isValidDropTarget(event)) {
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Insert.get().hide();
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event.getStatus().setStatus(false);
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return;
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}
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super.showFeedback(event);
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}
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@SuppressWarnings("unchecked")
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private boolean isValidDropTarget(DNDEvent event) {
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TreePanel<FileModel> source = (TreePanel<FileModel>) event.getDragSource().getComponent();
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List<FileModel> selection = source.getSelectionModel().getSelection();
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for (FileModel model : selection) {
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// check the "model" against "zone" and return false
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// if "zone" is not a valid drop target for "model", otherwise check the next "model"
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// example:
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if(model.getGXTFolderItemType()!=null){
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if (model.getGXTFolderItemType().equals(GXTFolderItemTypeEnum.EXTERNAL_IMAGE) || model.getGXTFolderItemType().equals(GXTFolderItemTypeEnum.IMAGE_DOCUMENT))
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return true;
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if (model.getGXTFolderItemType().equals(GXTFolderItemTypeEnum.TIME_SERIES))
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return true;
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// if(source.getStore().getParent(model) == target.getModel())
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// return false;
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}
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}
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return false;
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}
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};
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//IMPORTANT
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target.setOperation(Operation.COPY);
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final LayoutContainer sourceContainer = new LayoutContainer();
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sourceContainer.setLayoutOnChange(true);
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sourceContainer.setWidth(100);
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hp.add(container);
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hp.add(sourceContainer);
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add(hp);
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}
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}
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