diff options
Diffstat (limited to 'plugins/infra/org.eclipse.papyrus.infra.ui/src/org/eclipse/papyrus/infra/ui/util/SelectionHelper.java')
| -rw-r--r-- | plugins/infra/org.eclipse.papyrus.infra.ui/src/org/eclipse/papyrus/infra/ui/util/SelectionHelper.java | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/plugins/infra/org.eclipse.papyrus.infra.ui/src/org/eclipse/papyrus/infra/ui/util/SelectionHelper.java b/plugins/infra/org.eclipse.papyrus.infra.ui/src/org/eclipse/papyrus/infra/ui/util/SelectionHelper.java new file mode 100644 index 00000000000..c642bc534fe --- /dev/null +++ b/plugins/infra/org.eclipse.papyrus.infra.ui/src/org/eclipse/papyrus/infra/ui/util/SelectionHelper.java @@ -0,0 +1,119 @@ +/*****************************************************************************
+ * Copyright (c) 2014 CEA LIST and others.
+ *
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * CEA LIST - Initial API and implementation
+ *
+ *****************************************************************************/
+
+package org.eclipse.papyrus.infra.ui.util;
+
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.StructuredSelection;
+import org.eclipse.ui.ISelectionService;
+import org.eclipse.ui.IWorkbench;
+import org.eclipse.ui.IWorkbenchWindow;
+import org.eclipse.ui.PlatformUI;
+
+/**
+ * @author VL222926
+ *
+ */
+public class SelectionHelper {
+
+ /**
+ * Constructor.
+ *
+ */
+ private SelectionHelper() {
+ // to avoid instanciation
+ }
+
+ /**
+ *
+ * @return
+ * the selection service or <code>null</code> if not found
+ *
+ */
+ public static final ISelectionService getSelectionService() {
+ IWorkbench wb = PlatformUI.getWorkbench();
+ if (wb != null) {
+ // don't work
+ // ISelectionService s1 = (ISelectionService) wb.getService(ISelectionService.class);
+ IWorkbenchWindow ww = wb.getActiveWorkbenchWindow();
+ if (ww != null) {
+ return (ISelectionService) ww.getService(ISelectionService.class);
+ }
+ }
+ return null;
+ }
+
+ /**
+ *
+ * @return
+ * the current selection or an empty selection. can't be <code>null</code>
+ */
+ public static final ISelection getCurrentSelection() {
+ ISelectionService selectionService = getSelectionService();
+ if (selectionService != null) {
+ ISelection currentSelection = selectionService.getSelection();
+ if (currentSelection != null) {
+ return currentSelection;
+ }
+ }
+ return StructuredSelection.EMPTY;
+ }
+
+ /**
+ *
+ * @param viewId
+ * the id of the view for which we want the selection
+ * @return
+ * the current selection for the view, the returned value can't be <code>null</code>
+ */
+ public static final ISelection getCurrentSelection(String viewId) {
+ ISelectionService selectionService = getSelectionService();
+ if (selectionService != null) {
+ ISelection currentSelection = selectionService.getSelection(viewId);
+ if (currentSelection != null) {
+ return currentSelection;
+ }
+ }
+ return StructuredSelection.EMPTY;
+ }
+
+ /**
+ *
+ * @return
+ * a structured selection.
+ * the returned value can't be <code>null</code>
+ */
+ public static final IStructuredSelection getCurrentStructuredSelection() {
+ ISelection selection = getCurrentSelection();
+ if (selection instanceof IStructuredSelection) {
+ return (IStructuredSelection) selection;
+ }
+ return StructuredSelection.EMPTY;
+ }
+
+ /**
+ *
+ * @param viewId
+ * the id of the view for which we want the selection
+ * @return
+ * the current selection for the view, the returned value can't be <code>null</code>
+ */
+ public static final IStructuredSelection getCurrentStructuredSelection(String viewId) {
+ ISelection selection = getCurrentSelection(viewId);
+ if (selection instanceof IStructuredSelection) {
+ return (IStructuredSelection) selection;
+ }
+ return StructuredSelection.EMPTY;
+ }
+}
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