Some tweaks to the element selection query view

[simantics/district.git] / org.simantics.district.selection.ui / src / org / simantics / district / selection / ui / handlers / PerformSelectionQueryHandler.java

diff --git a/org.simantics.district.selection.ui/src/org/simantics/district/selection/ui/handlers/PerformSelectionQueryHandler.java b/org.simantics.district.selection.ui/src/org/simantics/district/selection/ui/handlers/PerformSelectionQueryHandler.java
new file mode 100644 (file)
index 0000000..1288d8e
--- /dev/null
+++ b/org.simantics.district.selection.ui/src/org/simantics/district/selection/ui/handlers/PerformSelectionQueryHandler.java
@@ -0,0 +1,49 @@
+package org.simantics.district.selection.ui.handlers;
+
+import javax.inject.Inject;
+
+import org.eclipse.e4.core.contexts.IEclipseContext;
+import org.eclipse.e4.core.di.annotations.CanExecute;
+import org.eclipse.e4.core.di.annotations.Execute;
+import org.eclipse.e4.ui.model.application.ui.basic.MPart;
+import org.eclipse.e4.ui.workbench.IWorkbench;
+import org.eclipse.e4.ui.workbench.modeling.EPartService;
+import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
+import org.eclipse.swt.widgets.Display;
+import org.simantics.district.selection.ElementSelector;
+import org.simantics.district.selection.ui.parts.ElementSelectionView;
+
+public class PerformSelectionQueryHandler {
+
+       @Inject
+       EPartService partService;
+       
+       @CanExecute
+       public boolean canExecute(ESelectionService selectionService) {
+               MPart part = partService.getActivePart();
+               if (part == null) return false;
+               
+               Object object = part.getObject();
+               if (object == null || !(object instanceof ElementSelectionView))
+                       return false;
+               
+               ElementSelectionView view = (ElementSelectionView)object;
+               return view.getSelectedItem() != null;
+       }
+       
+       @Execute
+       public void performElementSelection(IEclipseContext context, IWorkbench workbench) {
+               MPart part = partService.getActivePart();
+               if (part == null) return;
+               
+               Object object = part.getObject();
+               if (object == null || !(object instanceof ElementSelectionView))
+                       return;
+               
+               ElementSelectionView view = (ElementSelectionView)object;
+               ElementSelector selectedItem = view.getSelectedItem();
+               
+               Display display = context.getActive(Display.class);
+               view.performSelection(display, selectedItem);
+       }
+}