The final restructured version for automatic build using maven tycho

[Mograsim.git] / plugins / net.mograsim.plugin.core / src / net / mograsim / plugin / nature / AddRemoveMograsimNatureHandler.java

diff --git a/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/nature/AddRemoveMograsimNatureHandler.java b/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/nature/AddRemoveMograsimNatureHandler.java
new file mode 100644 (file)
index 0000000..581b4a6
--- /dev/null
+++ b/plugins/net.mograsim.plugin.core/src/net/mograsim/plugin/nature/AddRemoveMograsimNatureHandler.java
@@ -0,0 +1,82 @@
+package net.mograsim.plugin.nature;
+
+import java.util.Iterator;
+import org.eclipse.core.commands.*;
+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.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.ui.handlers.HandlerUtil;
+
+public class AddRemoveMograsimNatureHandler extends AbstractHandler
+{
+
+       public Object execute(ExecutionEvent event) throws ExecutionException
+       {
+               ISelection selection = HandlerUtil.getCurrentSelection(event);
+               //
+               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 = ((IAdaptable) element).getAdapter(IProject.class);
+                               }
+                               if (project != null)
+                               {
+                                       try
+                                       {
+                                               toggleNature(project);
+                                       }
+                                       catch (CoreException e)
+                                       {
+                                               // TODO log something
+                                               throw new ExecutionException("Failed to toggle nature", e);
+                                       }
+                               }
+                       }
+               }
+
+               return null;
+       }
+
+       /**
+        * Toggles sample nature on a project
+        *
+        * @param project to have sample nature added or removed
+        */
+       private void toggleNature(IProject project) throws CoreException
+       {
+               IProjectDescription description = project.getDescription();
+               String[] natures = description.getNatureIds();
+
+               for (int i = 0; i < natures.length; ++i)
+               {
+                       if (MograsimNature.NATURE_ID.equals(natures[i]))
+                       {
+                               // 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;
+                       }
+               }
+
+               // Add the nature
+               String[] newNatures = new String[natures.length + 1];
+               System.arraycopy(natures, 0, newNatures, 0, natures.length);
+               newNatures[natures.length] = MograsimNature.NATURE_ID;
+               description.setNatureIds(newNatures);
+               project.setDescription(description, null);
+       }
+}
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