com.aptana.ide.debug.internal.ui.actions.OpenScriptSourceAction.java Source code

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Here is the source code for com.aptana.ide.debug.internal.ui.actions.OpenScriptSourceAction.java

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/**
 * This file Copyright (c) 2005-2008 Aptana, Inc. This program is
 * dual-licensed under both the Aptana Public License and the GNU General
 * Public license. You may elect to use one or the other of these licenses.
 * 
 * This program is distributed in the hope that it will be useful, but
 * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
 * NONINFRINGEMENT. Redistribution, except as permitted by whichever of
 * the GPL or APL you select, is prohibited.
 *
 * 1. For the GPL license (GPL), you can redistribute and/or modify this
 * program under the terms of the GNU General Public License,
 * Version 3, as published by the Free Software Foundation.  You should
 * have received a copy of the GNU General Public License, Version 3 along
 * with this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 * 
 * Aptana provides a special exception to allow redistribution of this file
 * with certain other free and open source software ("FOSS") code and certain additional terms
 * pursuant to Section 7 of the GPL. You may view the exception and these
 * terms on the web at http://www.aptana.com/legal/gpl/.
 * 
 * 2. For the Aptana Public License (APL), this program and the
 * accompanying materials are made available under the terms of the APL
 * v1.0 which accompanies this distribution, and is available at
 * http://www.aptana.com/legal/apl/.
 * 
 * You may view the GPL, Aptana's exception and additional terms, and the
 * APL in the file titled license.html at the root of the corresponding
 * plugin containing this source file.
 * 
 * Any modifications to this file must keep this entire header intact.
 */
package com.aptana.ide.debug.internal.ui.actions;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.debug.core.ILaunch;
import org.eclipse.debug.core.model.IDebugElement;
import org.eclipse.debug.core.model.ISourceLocator;
import org.eclipse.debug.ui.DebugUITools;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.actions.SelectionProviderAction;
import org.eclipse.ui.plugin.AbstractUIPlugin;

import com.aptana.ide.core.StringUtils;
import com.aptana.ide.debug.core.model.IJSScriptElement;
import com.aptana.ide.debug.internal.ui.util.SourceDisplayUtil;
import com.aptana.ide.debug.ui.DebugUiPlugin;

/**
 * @author Max Stepanov
 */
public class OpenScriptSourceAction extends SelectionProviderAction {
    private IJSScriptElement scriptElement;

    /**
     * @param provider
     */
    public OpenScriptSourceAction(ISelectionProvider provider) {
        super(provider, Messages.OpenScriptSourceAction_GoToFile);
        setToolTipText(Messages.OpenScriptSourceAction_GoToFileForScript);
        setImageDescriptor(AbstractUIPlugin.imageDescriptorFromPlugin("com.aptana.ide.debug.ui", //$NON-NLS-1$
                "icons/full/elcl16/gotoobj_tsk.gif")); //$NON-NLS-1$
        setEnabled(false);
    }

    /**
     * @see org.eclipse.ui.actions.SelectionProviderAction#selectionChanged(org.eclipse.jface.viewers.IStructuredSelection)
     */
    public void selectionChanged(IStructuredSelection selection) {
        if (selection.size() == 1) {
            Object element = selection.getFirstElement();
            if (element instanceof IJSScriptElement) {
                scriptElement = (IJSScriptElement) element;
                String location = scriptElement.getLocation();
                if (location != null) {
                    setEnabled(true);
                    int lineNumber = scriptElement.getBaseLine();
                    Object sourceElement = DebugUITools.lookupSource(scriptElement, getSourceLocator(scriptElement))
                            .getSourceElement();
                    IEditorInput editorInput = SourceDisplayUtil.getEditorInput(sourceElement);
                    if (editorInput != null) {
                        IEditorPart editorPart = SourceDisplayUtil.findEditor(editorInput);
                        if (editorPart != null) {
                            SourceDisplayUtil.revealLineInEditor(editorPart, lineNumber);
                        }
                    }
                    return;
                }
            }
        } else {
            scriptElement = null;
        }
        setEnabled(false);
    }

    /**
     * @see org.eclipse.jface.action.IAction#run()
     */
    public void run() {
        if (scriptElement == null) {
            selectionChanged(getStructuredSelection());
            if (scriptElement == null) {
                return;
            }
        }
        String location = scriptElement.getLocation();
        if (location == null || location.length() == 0) {
            return;
        }
        int lineNumber = scriptElement.getBaseLine();

        try {
            Object sourceElement = DebugUITools.lookupSource(scriptElement, getSourceLocator(scriptElement))
                    .getSourceElement();
            IEditorInput editorInput = SourceDisplayUtil.getEditorInput(sourceElement);
            if (editorInput != null) {
                SourceDisplayUtil.openInEditor(editorInput, lineNumber);
                return;
            }
            MessageDialog.openInformation(DebugUiPlugin.getActiveWorkbenchShell(),
                    Messages.OpenScriptSourceAction_Information, StringUtils.format(
                            Messages.OpenScriptSourceAction_SourceNotFoundFor_0, new String[] { location }));
        } catch (CoreException e) {
            DebugUiPlugin.errorDialog(Messages.OpenScriptSourceAction_ExceptionWhileOpeningScriptSource, e);
        }
    }

    private ISourceLocator getSourceLocator(IDebugElement debugElement) {
        ISourceLocator sourceLocator = null;
        ILaunch launch = debugElement.getLaunch();
        if (launch != null) {
            sourceLocator = launch.getSourceLocator();
        }
        return sourceLocator;
    }
}