Bug 165677 folder is not opened by double click
Data explorer pane contains following tree: + Data Sources - Postgres + Data Sets - Header DS - Chart DS + Report Parameters - Id It is common then if you double click on menu item, that is folder for other menu items (submenu), that it is opened. But in BIRT I can click to Data Sources (Data Sets, Report Params) as many times as I want but it never opens the submenu. In other words, when I doubleclick Data Sets, I want to open it and see which data sets are defined.
UI/org.eclipse.birt.report.designer.ui.editors/src/org/eclipse/birt/report/designer/internal/ui/views/data/DataViewTreeViewerPage.java
import org.eclipse.birt.report.designer.internal.ui.views.ViewsTreeProvider;
import org.eclipse.birt.report.designer.internal.ui.views.actions.GlobalActionFactory;
import org.eclipse.birt.report.designer.internal.ui.views.outline.ItemSorter;
import org.eclipse.birt.report.designer.internal.ui.views.outline.ListenerElementVisitor;
import org.eclipse.birt.report.designer.internal.ui.views.outline.dnd.DesignerDragListener;
import org.eclipse.birt.report.designer.internal.ui.views.outline.dnd.DesignerDropListener;
import org.eclipse.birt.report.designer.internal.ui.views.outline.dnd.IDropConstraint;
import org.eclipse.birt.report.designer.nls.Messages;
import org.eclipse.birt.report.model.api.CascadingParameterGroupHandle;
import org.eclipse.birt.report.model.api.DataSetHandle;
import org.eclipse.birt.report.model.api.DataSourceHandle;
import org.eclipse.birt.report.model.api.DesignElementHandle;
import org.eclipse.birt.report.model.api.ModuleHandle;
import org.eclipse.birt.report.model.api.ParameterGroupHandle;
import org.eclipse.birt.report.model.api.ParameterHandle;
import org.eclipse.birt.report.model.api.ReportDesignHandle;
import org.eclipse.birt.report.model.api.ResultSetColumnHandle;
import org.eclipse.birt.report.model.api.ScalarParameterHandle;
import org.eclipse.birt.report.model.api.SlotHandle;
import org.eclipse.birt.report.model.api.activity.NotificationEvent;
import org.eclipse.birt.report.model.api.activity.SemanticException;
import org.eclipse.birt.report.model.api.command.ContentEvent;
import org.eclipse.birt.report.model.api.command.NameEvent;
import org.eclipse.birt.report.model.api.command.PropertyEvent;
import org.eclipse.birt.report.model.api.core.IDesignElement;
import org.eclipse.birt.report.model.api.core.Listener;
import org.eclipse.birt.report.model.api.elements.structures.ConfigVariable;
import org.eclipse.birt.report.model.api.validators.IValidationListener;
import org.eclipse.birt.report.model.api.validators.ValidationEvent;
import org.eclipse.gef.dnd.TemplateTransfer;