eu.geclipse.ui.internal.actions.CommonActions.java Source code

Introduction

Here is the source code for eu.geclipse.ui.internal.actions.CommonActions.java

Source

/*****************************************************************************
 * Copyright (c) 2006, 2007 g-Eclipse Consortium 
 * 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
 *
 * Initial development of the original code was made for the
 * g-Eclipse project founded by European Union
 * project number: FP6-IST-034327  http://www.geclipse.eu/
 *
 * Contributors:
 *    Mathias Stuempert - initial API and implementation
 *****************************************************************************/

package eu.geclipse.ui.internal.actions;

import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.window.IShellProvider;
import org.eclipse.jface.window.SameShellProvider;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IWorkbenchSite;
import org.eclipse.ui.actions.ActionGroup;
import org.eclipse.ui.dialogs.PropertyDialogAction;
import org.eclipse.ui.navigator.ICommonMenuConstants;

import eu.geclipse.ui.internal.Activator;
import eu.geclipse.ui.internal.GridElementSelectionAdapter;
import eu.geclipse.ui.views.GridModelViewPart;

/**
 * Action group that holds actions that are common to all Grid
 * model views.
 */
public class CommonActions extends ActionGroup {

    /**
     * The refresh action.
     */
    RefreshAction refreshAction;

    /**
     * The {@link IWorkbenchSite} this action is associated with.
     */
    private IWorkbenchSite site;

    /**
     * The {@link GridElementSelectionAdapter} used to map the current selection.
     */
    private GridElementSelectionAdapter selectionAdapter;

    /**
     * The {@link PropertyDialogAction}.
     */
    private PropertyDialogAction propertyAction;

    /**
     * Construct a new <code>CommonActions</code> action group for the
     * specified {@link IWorkbenchSite}.
     * 
     * @param part The {@link GridModelViewPart} this action is associated with.
     */
    public CommonActions(final GridModelViewPart part) {

        this.site = part.getSite();
        Shell shell = this.site.getShell();
        IShellProvider shellProvider = new SameShellProvider(shell);
        ISelectionProvider selectionProvider = this.site.getSelectionProvider();

        this.selectionAdapter = new GridElementSelectionAdapter();
        selectionProvider.addSelectionChangedListener(this.selectionAdapter);

        this.propertyAction = new PropertyDialogAction(shellProvider, this.selectionAdapter);

        this.refreshAction = new RefreshAction(shell);
        this.refreshAction.setText(Messages.getString("CommonActions.refresh")); //$NON-NLS-1$
        selectionProvider.addSelectionChangedListener(this.refreshAction);

        ImageRegistry imgReg = Activator.getDefault().getImageRegistry();
        Image image = imgReg.get("refresh"); //$NON-NLS-1$
        ImageDescriptor refreshImage = ImageDescriptor.createFromImage(image);
        this.refreshAction.setImageDescriptor(refreshImage);

        part.getViewer().getControl().addKeyListener(new KeyAdapter() {
            @Override
            public void keyPressed(final KeyEvent e) {
                if (e.keyCode == SWT.F5) {
                    CommonActions.this.refreshAction.run();
                }
            }
        });

    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.actions.ActionGroup#dispose()
     */
    @Override
    public void dispose() {
        ISelectionProvider selectionProvider = this.site.getSelectionProvider();
        selectionProvider.removeSelectionChangedListener(this.selectionAdapter);
        selectionProvider.removeSelectionChangedListener(this.refreshAction);
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.actions.ActionGroup#fillContextMenu(org.eclipse.jface.action.IMenuManager)
     */
    @Override
    public void fillContextMenu(final IMenuManager menu) {
        if (this.propertyAction.isEnabled()) {
            menu.appendToGroup(ICommonMenuConstants.GROUP_PROPERTIES, this.propertyAction);
        }
        if (this.refreshAction.isEnabled()) {
            menu.appendToGroup(ICommonMenuConstants.GROUP_BUILD, this.refreshAction);
        }
        super.fillContextMenu(menu);
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.actions.ActionGroup#updateActionBars()
     */
    @Override
    public void updateActionBars() {
        super.updateActionBars();

        IStructuredSelection selection = null;

        if (getContext() != null && getContext().getSelection() instanceof IStructuredSelection) {
            selection = (IStructuredSelection) getContext().getSelection();
        }

        this.refreshAction.selectionChanged(selection);
        this.propertyAction.selectionChanged(selection);
    }

}