es.cv.gvcase.ide.navigator.actions.resource.OpenFileActionProvider.java Source code

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Here is the source code for es.cv.gvcase.ide.navigator.actions.resource.OpenFileActionProvider.java

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/*******************************************************************************
 * Copyright (c) 2010 Conselleria de Infraestructuras y Transporte, Generalitat 
 * de la Comunitat Valenciana . 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: Marc Gil Sendra (Prodevelop)  Initial API 
 * implementation.
 *
 ******************************************************************************/
package es.cv.gvcase.ide.navigator.actions.resource;

import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.mapping.ResourceMapping;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.action.GroupMarker;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.internal.navigator.AdaptabilityUtility;
import org.eclipse.ui.navigator.ICommonActionConstants;
import org.eclipse.ui.navigator.ICommonActionExtensionSite;
import org.eclipse.ui.navigator.ICommonMenuConstants;
import org.eclipse.ui.navigator.ICommonViewerWorkbenchSite;

import es.cv.gvcase.ide.navigator.provider.MOSKittCommonActionProvider;

/**
 * Specialization of {@link MOSKittCommonActionProvider} to contribute the
 * {@link OpenFileAction} global handler.
 * 
 * @author <a href="mailto:mgil@prodevelop.es">Marc Gil Sendra</a>
 */
public class OpenFileActionProvider extends MOSKittCommonActionProvider {

    private OpenFileAction openFileAction;

    private ICommonViewerWorkbenchSite viewSite = null;

    private boolean contribute = false;

    public void init(ICommonActionExtensionSite aConfig) {
        if (aConfig.getViewSite() instanceof ICommonViewerWorkbenchSite) {
            viewSite = (ICommonViewerWorkbenchSite) aConfig.getViewSite();
            openFileAction = new OpenFileAction(viewSite.getPage());
            contribute = true;
        }
    }

    public void fillContextMenu(IMenuManager aMenu) {
        if (!contribute || getContext().getSelection().isEmpty()) {
            return;
        }

        IStructuredSelection selection = (IStructuredSelection) getContext().getSelection();

        openFileAction.selectionChanged(selection);
        if (openFileAction.isEnabled()) {
            aMenu.insertAfter(ICommonMenuConstants.GROUP_OPEN, openFileAction);
        }
        addOpenWithMenu(aMenu);
    }

    public void fillActionBars(IActionBars theActionBars) {
        if (!contribute) {
            return;
        }
        IStructuredSelection selection = (IStructuredSelection) getContext().getSelection();
        if (selection.size() == 1 && selection.getFirstElement() instanceof IFile) {
            openFileAction.selectionChanged(selection);
            theActionBars.setGlobalActionHandler(ICommonActionConstants.OPEN, openFileAction);
        }

    }

    private void addOpenWithMenu(IMenuManager aMenu) {
        IStructuredSelection ss = (IStructuredSelection) getContext().getSelection();

        if (ss == null || ss.size() != 1) {
            return;
        }

        Object o = ss.getFirstElement();

        // first try IResource
        IAdaptable openable = (IAdaptable) AdaptabilityUtility.getAdapter(o, IResource.class);
        // otherwise try ResourceMapping
        if (openable == null) {
            openable = (IAdaptable) AdaptabilityUtility.getAdapter(o, ResourceMapping.class);
        } else if (((IResource) openable).getType() != IResource.FILE) {
            openable = null;
        }

        if (openable != null) {
            // Create a menu flyout.
            IMenuManager submenu = new MenuManager("Open With", ICommonMenuConstants.GROUP_OPEN_WITH);
            submenu.add(new GroupMarker(ICommonMenuConstants.GROUP_TOP));
            // use our OpenWithMenu in order to check Broken References
            submenu.add(new OpenWithMenu(viewSite.getPage(), openable));
            submenu.add(new GroupMarker(ICommonMenuConstants.GROUP_ADDITIONS));

            // Add the submenu.
            if (submenu.getItems().length > 2 && submenu.isEnabled()) {
                aMenu.appendToGroup(ICommonMenuConstants.GROUP_OPEN_WITH, submenu);
            }
        }
    }

}