/*******************************************************************************
 * Copyright (c) 2004, 2005 Sybase, 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:
 *     Sybase, Inc. - initial API and implementation
 *******************************************************************************/

package org.eclipse.jst.jsf.facesconfig.ui.pageflow;

import org.eclipse.draw2d.PositionConstants;
import org.eclipse.gef.editparts.ZoomManager;
import org.eclipse.gef.ui.actions.ActionBarContributor;
import org.eclipse.gef.ui.actions.AlignmentRetargetAction;
import org.eclipse.gef.ui.actions.DeleteRetargetAction;
import org.eclipse.gef.ui.actions.GEFActionConstants;
import org.eclipse.gef.ui.actions.RedoRetargetAction;
import org.eclipse.gef.ui.actions.UndoRetargetAction;
import org.eclipse.gef.ui.actions.ZoomComboContributionItem;
import org.eclipse.gef.ui.actions.ZoomInRetargetAction;
import org.eclipse.gef.ui.actions.ZoomOutRetargetAction;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jst.jsf.facesconfig.ui.INestedActionContributor;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IWorkbenchActionConstants;
import org.eclipse.ui.actions.ActionFactory;

/**
 * The action bar contributor for the page flow editor
 *
 */
public class PageflowActionBarContributor extends ActionBarContributor
		implements INestedActionContributor {

	IEditorPart activeEditor;

	/*
	 * (non-Javadoc)
	 * 
	 * @see ActionBarContributor#buildActions()
	 */
	protected void buildActions() {
		addRetargetAction(new UndoRetargetAction());
		addRetargetAction(new RedoRetargetAction());
		addRetargetAction(new DeleteRetargetAction());
		addRetargetAction(new ZoomInRetargetAction());
		addRetargetAction(new ZoomOutRetargetAction());

		addRetargetAction(new AlignmentRetargetAction(PositionConstants.LEFT));
		addRetargetAction(new AlignmentRetargetAction(PositionConstants.CENTER));
		addRetargetAction(new AlignmentRetargetAction(PositionConstants.RIGHT));
		addRetargetAction(new AlignmentRetargetAction(PositionConstants.TOP));
		addRetargetAction(new AlignmentRetargetAction(PositionConstants.MIDDLE));
		addRetargetAction(new AlignmentRetargetAction(PositionConstants.BOTTOM));
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see ActionBarContributor#declareGlobalActionKeys()
	 */
	public void declareGlobalActionKeys() {
		// do nothing
	}

	/**
	 * Update the action keys
	 */
	public void updateActionKeys() {
		declareGlobalActionKeys();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see EditorActionBarContributor#contributeToToolBar(IToolBarManager)
	 */
	public void contributeToToolBar(IToolBarManager tbm) {
		tbm.add(getAction(ActionFactory.UNDO.getId()));
		tbm.add(getAction(ActionFactory.REDO.getId()));
		tbm.add(new Separator());
		tbm.add(getAction(GEFActionConstants.ALIGN_LEFT));
		tbm.add(getAction(GEFActionConstants.ALIGN_CENTER));
		tbm.add(getAction(GEFActionConstants.ALIGN_RIGHT));
		tbm.add(new Separator());
		tbm.add(getAction(GEFActionConstants.ALIGN_TOP));
		tbm.add(getAction(GEFActionConstants.ALIGN_MIDDLE));
		tbm.add(getAction(GEFActionConstants.ALIGN_BOTTOM));

		tbm.add(new Separator());
		String[] zoomStrings = new String[] { ZoomManager.FIT_ALL,
				ZoomManager.FIT_HEIGHT, ZoomManager.FIT_WIDTH };
		tbm.add(new ZoomComboContributionItem(getPage(), zoomStrings));
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see EditorActionBarContributor#contributeToMenu(IMenuManager)
	 */
	public void contributeToMenu(IMenuManager menubar) {
		super.contributeToMenu(menubar);
		MenuManager viewMenu = new MenuManager("View"); //$NON-NLS-1$
		viewMenu.add(getAction(GEFActionConstants.ZOOM_IN));
		viewMenu.add(getAction(GEFActionConstants.ZOOM_OUT));
		menubar.insertAfter(IWorkbenchActionConstants.M_EDIT, viewMenu);
	}

	public void setActiveEditor(IEditorPart editor) {
		if (editor instanceof PageflowEditor) {
			activeEditor = editor;
			// updateActionKeys();
			super.setActiveEditor(editor);
		}
	}

	public void update() {
		if (activeEditor != null) {
			((PageflowEditor) activeEditor).updateActions();
		}
	}
}