Add generic context menu for ICdmViewer framework

diff --git a/eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/CdmViewerContextMenu.java b/eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/CdmViewerContextMenu.java
new file mode 100644 (file)
index 0000000..d67df29
--- /dev/null
+++ b/eu.etaxonomy.taxeditor.store/src/main/java/eu/etaxonomy/taxeditor/view/CdmViewerContextMenu.java
@@ -0,0 +1,73 @@
+package eu.etaxonomy.taxeditor.view;
+
+import java.util.Map;
+import java.util.Map.Entry;
+
+import org.eclipse.jface.action.ContributionItem;
+import org.eclipse.jface.action.IContributionItem;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.events.SelectionAdapter;
+import org.eclipse.swt.events.SelectionEvent;
+import org.eclipse.swt.widgets.Menu;
+import org.eclipse.swt.widgets.MenuItem;
+import org.eclipse.ui.IWorkbenchWindow;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.actions.CompoundContributionItem;
+
+/**
+ * Generic context menu for opening elements in the taxeditor.
+ *
+ */
+public class CdmViewerContextMenu extends CompoundContributionItem {
+
+    @Override
+    protected IContributionItem[] getContributionItems() {
+        IContributionItem[] contributionItems = new IContributionItem[] {
+                new ContributionItem() {
+                    @Override
+                    public void fill(Menu menu, int index) {
+                        MenuItem addItem = new MenuItem(menu, SWT.CASCADE);
+                        addItem.setText("Open in...");
+                        Menu addMenu = new Menu(menu);
+                        addItem.setMenu(addMenu);
+                        final IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
+                        final ISelection selection = window.getActivePage().getSelection();
+                        if(selection instanceof IStructuredSelection){
+                            Object firstElement = ((IStructuredSelection) selection).getFirstElement();
+                            Map<Entry<Class<?>, String>, ICdmViewer> nameViewerMap = CdmViewerChooser.getNameViewerMap(firstElement);
+                            for(Entry<Entry<Class<?>, String>, ICdmViewer> entry:nameViewerMap.entrySet()){
+                                Entry<Class<?>, String> viewerClass = entry.getKey();
+                                MenuItem menuItem = new MenuItem(addMenu, SWT.NONE);
+                                menuItem.setText(viewerClass.getValue());
+                                menuItem.addSelectionListener(new OpenInViewerListener(entry.getValue(), firstElement, viewerClass.getKey()));
+                            }
+                        }
+                    }
+                }
+        };
+        return contributionItems;
+    }
+
+    private class OpenInViewerListener extends SelectionAdapter {
+
+        private final ICdmViewer cdmViewer;
+        private final Object input;
+        private final Class<?> viewerClass;
+
+        public OpenInViewerListener(ICdmViewer cdmViewer, Object input, Class<?> viewerClass) {
+            super();
+            this.cdmViewer = cdmViewer;
+            this.input = input;
+            this.viewerClass = viewerClass;
+        }
+
+        @Override
+        public void widgetSelected(SelectionEvent e) {
+            cdmViewer.show(input, viewerClass);
+        }
+
+    }
+
+}