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

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Here is the source code for com.aptana.js.debug.ui.internal.actions.OpenScriptSourceAction.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.js.debug.ui.internal.actions;

import java.net.URI;
import java.text.MessageFormat;

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.js.debug.core.model.IJSScriptElement;
import com.aptana.ui.util.UIUtils;
import com.aptana.debug.ui.DebugUiPlugin;
import com.aptana.debug.ui.SourceDisplayUtil;

/**
 * @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.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;
                URI 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;
            }
        }
        URI location = scriptElement.getLocation();
        if (location == null) {
            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(UIUtils.getActiveShell(), Messages.OpenScriptSourceAction_Information,
                    MessageFormat.format(Messages.OpenScriptSourceAction_SourceNotFoundFor_0, location.getPath()));
        } 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;
    }
}