1 files changed, 130 insertions, 0 deletions
diff --git a/org.eclipse.cdt.codan.ui/src/org/eclipse/cdt/codan/internal/ui/actions/ToggleNatureAction.java b/org.eclipse.cdt.codan.ui/src/org/eclipse/cdt/codan/internal/ui/actions/ToggleNatureAction.java
new file mode 100644
index 0000000..94c51f0
--- /dev/null
+++ b/org.eclipse.cdt.codan.ui/src/org/eclipse/cdt/codan/internal/ui/actions/ToggleNatureAction.java
@@ -0,0 +1,130 @@
+/*******************************************************************************
+ * Copyright (c) 2009 Alena Laskavaia 
+ * 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:
+ *    Alena Laskavaia  - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.codan.internal.ui.actions;
+
+import java.util.Iterator;
+
+import org.eclipse.cdt.codan.core.CodanCorePlugin;
+import org.eclipse.cdt.codan.internal.ui.CodanUIActivator;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IProjectDescription;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.jface.action.IAction;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.ui.IObjectActionDelegate;
+import org.eclipse.ui.IWorkbenchPart;
+
+public class ToggleNatureAction implements IObjectActionDelegate {
+	private ISelection selection;
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
+	 */
+	public void run(IAction action) {
+		if (selection instanceof IStructuredSelection) {
+			for (Iterator it = ((IStructuredSelection) selection).iterator(); it
+					.hasNext();) {
+				Object element = it.next();
+				IProject project = null;
+				if (element instanceof IProject) {
+					project = (IProject) element;
+				} else if (element instanceof IAdaptable) {
+					project = (IProject) ((IAdaptable) element)
+							.getAdapter(IProject.class);
+				}
+				if (project != null) {
+					toggleNature(project, !hasCodanNature(project));
+				}
+			}
+		}
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action
+	 * .IAction, org.eclipse.jface.viewers.ISelection)
+	 */
+	public void selectionChanged(IAction action, ISelection selection) {
+		this.selection = selection;
+	}
+
+	/*
+	 * (non-Javadoc)
+	 * 
+	 * @see
+	 * org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.
+	 * action.IAction, org.eclipse.ui.IWorkbenchPart)
+	 */
+	public void setActivePart(IAction action, IWorkbenchPart targetPart) {
+	}
+
+	public boolean hasCodanNature(IProject project) {
+		IProjectDescription description;
+		try {
+			description = project.getDescription();
+			String[] natures = description.getNatureIds();
+			for (int i = 0; i < natures.length; ++i) {
+				if (CodanCorePlugin.NATURE_ID.equals(natures[i])) {
+					return true;
+				}
+			}
+		} catch (CoreException e) {
+			CodanUIActivator.log(e);
+		}
+		return false;
+	}
+
+	/**
+	 * Toggles codan nature on a project
+	 * 
+	 * @param project
+	 *            to have codan nature added or removed
+	 */
+	public void toggleNature(IProject project, boolean add) {
+		try {
+			IProjectDescription description = project.getDescription();
+			String[] natures = description.getNatureIds();
+			for (int i = 0; i < natures.length; ++i) {
+				if (CodanCorePlugin.NATURE_ID.equals(natures[i])) {
+					if (add == false) {
+						// Remove the nature
+						String[] newNatures = new String[natures.length - 1];
+						System.arraycopy(natures, 0, newNatures, 0, i);
+						System.arraycopy(natures, i + 1, newNatures, i,
+								natures.length - i - 1);
+						description.setNatureIds(newNatures);
+						project.setDescription(description, null);
+						return;
+					}
+					// already there no need to add
+					add = false;
+					break;
+				}
+			}
+			if (add) {
+				// Add the nature
+				String[] newNatures = new String[natures.length + 1];
+				System.arraycopy(natures, 0, newNatures, 0, natures.length);
+				newNatures[natures.length] = CodanCorePlugin.NATURE_ID;
+				description.setNatureIds(newNatures);
+				project.setDescription(description, null);
+			}
+		} catch (CoreException e) {
+			CodanUIActivator.log(e);
+		}
+	}
+}