1 files changed, 154 insertions, 0 deletions
diff --git a/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/ui/viewmodel/launch/DefaultDsfSelectionPolicy.java b/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/ui/viewmodel/launch/DefaultDsfSelectionPolicy.java
new file mode 100644
index 00000000000..cb1e8faffbc
--- /dev/null
+++ b/dsf/org.eclipse.cdt.dsf.ui/src/org/eclipse/cdt/dsf/debug/ui/viewmodel/launch/DefaultDsfSelectionPolicy.java
@@ -0,0 +1,154 @@
+/*******************************************************************************
+ * Copyright (c) 2008 Wind River Systems, Inc. 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:
+ *     Anton Leherbauer (Wind River Systems) - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.dsf.debug.ui.viewmodel.launch;
+
+import org.eclipse.cdt.dsf.datamodel.DMContexts;
+import org.eclipse.cdt.dsf.datamodel.IDMContext;
+import org.eclipse.cdt.dsf.debug.service.IRunControl;
+import org.eclipse.cdt.dsf.debug.service.IRunControl.IExecutionDMContext;
+import org.eclipse.cdt.dsf.debug.service.IStack.IFrameDMContext;
+import org.eclipse.cdt.dsf.internal.ui.DsfUIPlugin;
+import org.eclipse.cdt.dsf.service.DsfServicesTracker;
+import org.eclipse.cdt.dsf.ui.viewmodel.datamodel.IDMVMContext;
+import org.eclipse.debug.internal.ui.viewers.model.provisional.IModelSelectionPolicy;
+import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext;
+import org.eclipse.debug.ui.IDebugUIConstants;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.ITreeSelection;
+import org.eclipse.jface.viewers.TreePath;
+import org.eclipse.jface.viewers.TreeSelection;
+
+/**
+ * Default DSF selection policy implementation modelled after platform version
+ * (<code>DefaultSelectionPolicy</code>).
+ * @since 1.1
+ */
+@SuppressWarnings("restriction")
+public class DefaultDsfSelectionPolicy implements IModelSelectionPolicy {
+
+	private IDMContext fDMContext;
+
+	/**
+	 * Create selection policy instance for the given data model context.
+	 * 
+	 * @param dmContext
+	 */
+	public DefaultDsfSelectionPolicy(IDMContext dmContext) {
+		fDMContext= dmContext;
+	}
+
+	/*
+	 * @see org.eclipse.debug.internal.ui.viewers.model.provisional.IModelSelectionPolicy#contains(org.eclipse.jface.viewers.ISelection, org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext)
+	 */
+	public boolean contains(ISelection selection, IPresentationContext context) {
+		if (IDebugUIConstants.ID_DEBUG_VIEW.equals(context.getId())) {
+			if (selection instanceof IStructuredSelection) {
+				IStructuredSelection ss= (IStructuredSelection) selection;
+				Object element= ss.getFirstElement();
+				if (element instanceof IDMVMContext) {
+					IDMVMContext dmvmContext= (IDMVMContext) element;
+					IDMContext dmContext= dmvmContext.getDMContext();
+					if (dmContext != null) {
+						return fDMContext.getSessionId().equals(dmContext.getSessionId());
+					}
+				}
+			}
+		}
+		return false;
+	}
+
+	/*
+	 * @see org.eclipse.debug.internal.ui.viewers.model.provisional.IModelSelectionPolicy#isSticky(org.eclipse.jface.viewers.ISelection, org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext)
+	 */
+	public boolean isSticky(ISelection selection, IPresentationContext context) {
+		if (IDebugUIConstants.ID_DEBUG_VIEW.equals(context.getId())) {
+			if (selection instanceof IStructuredSelection) {
+				IStructuredSelection ss= (IStructuredSelection) selection;
+				Object element= ss.getFirstElement();
+				return isSticky(element);
+			}
+		}
+		return false;
+	}
+
+	protected boolean isSticky(Object element) {
+		if (element instanceof IDMVMContext) {
+			IDMVMContext dmvmContext= (IDMVMContext) element;
+			IDMContext dmContext= dmvmContext.getDMContext();
+			if (dmContext instanceof IFrameDMContext) {
+				IExecutionDMContext execContext= DMContexts.getAncestorOfType(dmContext, IExecutionDMContext.class);
+				if (execContext != null) {
+					DsfServicesTracker servicesTracker = new DsfServicesTracker(DsfUIPlugin.getBundleContext(), dmContext.getSessionId());
+					try {
+						IRunControl runControl= servicesTracker.getService(IRunControl.class);
+						if (runControl != null) {
+							if (runControl.isSuspended(execContext)) {
+								return true;
+							}
+						}
+					} finally {
+						servicesTracker.dispose();
+					}
+				}
+			}
+		}
+		return false;
+	}
+
+	/*
+	 * @see org.eclipse.debug.internal.ui.viewers.model.provisional.IModelSelectionPolicy#overrides(org.eclipse.jface.viewers.ISelection, org.eclipse.jface.viewers.ISelection, org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext)
+	 */
+	public boolean overrides(ISelection existing, ISelection candidate, IPresentationContext context) {
+		if (IDebugUIConstants.ID_DEBUG_VIEW.equals(context.getId())) {
+			if (existing instanceof IStructuredSelection && candidate instanceof IStructuredSelection) {
+				IStructuredSelection ssExisting = (IStructuredSelection) existing;
+				IStructuredSelection ssCandidate = (IStructuredSelection) candidate;
+				return overrides(ssExisting.getFirstElement(), ssCandidate.getFirstElement());
+			}
+		}
+		return true;
+	}
+
+	
+	protected boolean overrides(Object existing, Object candidate) {
+		if (existing == null || existing.equals(candidate)) {
+			return true;
+		}
+		if (existing instanceof IDMVMContext && candidate instanceof IDMVMContext) {
+			IDMContext curr = ((IDMVMContext) existing).getDMContext();
+			IDMContext cand = ((IDMVMContext) candidate).getDMContext();
+			if (curr instanceof IFrameDMContext && cand instanceof IFrameDMContext) {
+				IExecutionDMContext currExecContext= DMContexts.getAncestorOfType(curr, IExecutionDMContext.class);
+				if (currExecContext != null) {
+					IExecutionDMContext candExecContext= DMContexts.getAncestorOfType(cand, IExecutionDMContext.class);
+					return currExecContext.equals(candExecContext) || !isSticky(existing);
+				}
+			}
+		}
+		return !isSticky(existing);
+	}
+
+	/*
+	 * @see org.eclipse.debug.internal.ui.viewers.model.provisional.IModelSelectionPolicy#replaceInvalidSelection(org.eclipse.jface.viewers.ISelection, org.eclipse.jface.viewers.ISelection)
+	 */
+	public ISelection replaceInvalidSelection(ISelection invalidSelection, ISelection newSelection) {
+        if (invalidSelection instanceof ITreeSelection) {
+            ITreeSelection treeSelection = (ITreeSelection)invalidSelection;
+            if (treeSelection.getPaths().length == 1) {
+                TreePath path = treeSelection.getPaths()[0];
+                return new TreeSelection(path.getParentPath());
+            }
+        }
+        return newSelection;
+	}
+
+}