delete launch configs when project is deleted

editor/tools/plugins/com.google.dart.tools.debug.ui/src/com/google/dart/tools/debug/ui/launch/DeleteLaunchConfigsParticipant.java

Index: editor/tools/plugins/com.google.dart.tools.debug.ui/src/com/google/dart/tools/debug/ui/launch/DeleteLaunchConfigsParticipant.java
===================================================================
--- editor/tools/plugins/com.google.dart.tools.debug.ui/src/com/google/dart/tools/debug/ui/launch/DeleteLaunchConfigsParticipant.java	(revision 0)
+++ editor/tools/plugins/com.google.dart.tools.debug.ui/src/com/google/dart/tools/debug/ui/launch/DeleteLaunchConfigsParticipant.java	(revision 0)
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2012, the Dart project authors.
+ * 
+ * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ * 
+ * http://www.eclipse.org/legal/epl-v10.html
+ * 
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.google.dart.tools.debug.ui.launch;
+
+import com.google.dart.tools.debug.ui.internal.util.LaunchUtils;
+
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.OperationCanceledException;
+import org.eclipse.debug.core.DebugPlugin;
+import org.eclipse.debug.core.ILaunch;
+import org.eclipse.debug.core.ILaunchConfiguration;
+import org.eclipse.debug.core.ILaunchManager;
+import org.eclipse.ltk.core.refactoring.Change;
+import org.eclipse.ltk.core.refactoring.RefactoringStatus;
+import org.eclipse.ltk.core.refactoring.participants.CheckConditionsContext;
+import org.eclipse.ltk.core.refactoring.participants.DeleteParticipant;
+
+import java.util.List;
+
+/**
+ * A delete refactoring participant {@link DeleteParticipant} to delete launch configurations when
+ * the associated project is deleted
+ */
+public class DeleteLaunchConfigsParticipant extends DeleteParticipant {
+
+  private IProject project;
+
+  @Override
+  public RefactoringStatus checkConditions(IProgressMonitor pm, CheckConditionsContext context)
+      throws OperationCanceledException {
+
+    return null;
+  }
+
+  @Override
+  public Change createChange(IProgressMonitor pm) throws CoreException, OperationCanceledException {
+
+    List<ILaunchConfiguration> launchConfigs = LaunchUtils.getLaunchesFor(project);
+    ILaunchManager manager = DebugPlugin.getDefault().getLaunchManager();
+    ILaunch[] launches = manager.getLaunches();
+
+    for (ILaunch launch : launches) {
+      if (launchConfigs.contains(launch.getLaunchConfiguration())) {
+        manager.removeLaunch(launch);
+      }
+    }
+    for (ILaunchConfiguration launchConfig : launchConfigs) {
+      launchConfig.delete();
+    }
+    return null;
+  }
+
+  @Override
+  public String getName() {
+    return "Delete launch configurations";
+  }
+
+  @Override
+  protected boolean initialize(Object element) {
+
+    if (element instanceof IProject) {
+      project = (IProject) element;
+      return true;
+    }
+
+    return false;
+  }
+
+}