1 files changed, 99 insertions, 0 deletions
diff --git a/org.eclipse.m2e.core/src/org/eclipse/m2e/core/actions/AbstractMavenMenuCreator.java b/org.eclipse.m2e.core/src/org/eclipse/m2e/core/actions/AbstractMavenMenuCreator.java
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+++ b/org.eclipse.m2e.core/src/org/eclipse/m2e/core/actions/AbstractMavenMenuCreator.java
@@ -0,0 +1,99 @@
+/*******************************************************************************
+ * Copyright (c) 2008-2010 Sonatype, Inc.
+ * 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:
+ *      Sonatype, Inc. - initial API and implementation
+ *******************************************************************************/
+
+package org.eclipse.m2e.core.actions;
+
+import org.eclipse.jface.action.Action;
+import org.eclipse.jface.action.IAction;
+import org.eclipse.jface.action.IMenuManager;
+import org.eclipse.jface.resource.ImageDescriptor;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.ui.IActionDelegate;
+
+import org.eclipse.m2e.core.MavenPlugin;
+
+
+/**
+ * Abstract Maven menu creator can be used to contribute custom entries to the Maven popup menu.
+ * <p>
+ * Custom items can be added to one of the standard groups {@link #NEW}, {@link #OPEN}, {@link #UPDATE}, {@link #NATURE}
+ * or {@link #IMPORT}.
+ * 
+ * @see org.eclipse.m2e.m2menu extension point
+ * 
+ * @author Eugene Kuleshov
+ */
+public abstract class AbstractMavenMenuCreator {
+  public static final String NEW = "new"; //$NON-NLS-1$
+  public static final String OPEN = "open"; //$NON-NLS-1$
+  public static final String UPDATE = "update"; //$NON-NLS-1$
+  public static final String NATURE = "nature"; //$NON-NLS-1$
+  public static final String IMPORT = "import"; //$NON-NLS-1$
+  
+  protected IStructuredSelection selection;
+
+  public void selectionChanged(IAction action, ISelection selection) {
+    if(selection instanceof IStructuredSelection) {
+      this.selection = (IStructuredSelection) selection;
+    }
+  }
+
+  /**
+   * Creates menu items in given menu manager.
+   */
+  public abstract void createMenu(IMenuManager mgr);
+
+  /**
+   * A helper method to create IAction instance from given IActionDelegate. 
+   */
+  protected IAction getAction(IActionDelegate delegate, String id, String text) {
+    return getAction(delegate, id, text, (ImageDescriptor) null);
+  }
+  
+  /**
+   * A helper method to create IAction instance from given IActionDelegate. 
+   */
+  protected IAction getAction(IActionDelegate delegate, String id, String text, String image) {
+    return getAction(delegate, id, text, MavenPlugin.getImageDescriptor(image));
+  }
+
+  protected IAction getAction(IActionDelegate delegate, String id, String text, ImageDescriptor image) {
+    ActionProxy action = new ActionProxy(id, text, delegate);
+    if(image!=null) {
+      action.setImageDescriptor(image);
+    }
+    return action;
+  }
+
+  class ActionProxy extends Action {
+    private IActionDelegate action;
+    
+    public ActionProxy(String id, String text, IActionDelegate action) {
+      super(text);
+      this.action = action;
+      setId(id);
+    }
+    
+    public ActionProxy(String id, String text, IActionDelegate action, int style) {
+      super(text, style);
+      this.action = action;
+      setId(id);
+    }
+    
+    public void run() {
+      action.selectionChanged(this, selection);
+      action.run(this);
+    }
+  }
+  
+}
+