com.aptana.ide.ui.io.navigator.actions.NewFileAction.java Source code

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Here is the source code for com.aptana.ide.ui.io.navigator.actions.NewFileAction.java

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/**
 * Aptana Studio
 * Copyright (c) 2005-2011 by Appcelerator, Inc. All Rights Reserved.
 * Licensed under the terms of the GNU Public License (GPL) v3 (with exceptions).
 * Please see the license.html included with this distribution for details.
 * Any modifications to this file must keep this entire header intact.
 */
package com.aptana.ide.ui.io.navigator.actions;

import java.io.InputStream;

import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.wizard.WizardDialog;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.actions.BaseSelectionListenerAction;

import com.aptana.core.util.StringUtil;
import com.aptana.scripting.model.TemplateElement;
import com.aptana.ui.util.UIUtils;

/**
 * @author Michael Xia (mxia@aptana.com)
 */
public class NewFileAction extends BaseSelectionListenerAction {

    private IAdaptable fSelectedElement;
    private String fInitialFilename;
    private TemplateElement fTemplate;

    public NewFileAction() {
        this(StringUtil.EMPTY);
    }

    public NewFileAction(String initialName) {
        this(initialName, null);
    }

    public NewFileAction(String initialName, TemplateElement template) {
        super(Messages.NewFileAction_Text);
        fInitialFilename = initialName;
        fTemplate = template;

        setImageDescriptor(
                PlatformUI.getWorkbench().getSharedImages().getImageDescriptor(ISharedImages.IMG_OBJ_FILE));
        setToolTipText(Messages.NewFileAction_ToolTip);
    }

    public void run() {
        if (fSelectedElement == null) {
            return;
        }

        NewExternalFileWizard wizard = new NewExternalFileWizard(fInitialFilename, getInitialContents(),
                fSelectedElement, fTemplate);
        WizardDialog dialog = new WizardDialog(UIUtils.getActiveShell(), wizard);
        dialog.open();
    }

    @Override
    protected boolean updateSelection(IStructuredSelection selection) {
        fSelectedElement = null;

        if (selection != null && !selection.isEmpty()) {
            Object element = selection.getFirstElement();
            if (element instanceof IAdaptable) {
                fSelectedElement = (IAdaptable) element;
            }
        }

        return super.updateSelection(selection) && fSelectedElement != null;
    }

    protected InputStream getInitialContents() {
        return null;
    }
}