1 /*

     2 * Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 * Listener interface for source file changes

    17 *

    18 */

    19 package com.nokia.tracebuilder.eclipse;

    20 

    21 import org.eclipse.jface.text.DocumentEvent;

    22 import org.eclipse.jface.text.IDocumentListener;

    23 

    24 import com.nokia.tracebuilder.engine.TraceBuilderConfiguration;

    25 import com.nokia.tracebuilder.engine.TraceBuilderGlobals;

    26 

    27 /**

    28  * Listener interface for source file changes

    29  * 

    30  */

    31 final class JFaceSourceChangeListener implements IDocumentListener {

    32 

    33 	/**

    34 	 * Workbench monitor

    35 	 */

    36 	private WorkbenchEditorMonitor monitor;

    37 

    38 	/**

    39 	 * Source to be monitored

    40 	 */

    41 	private JFaceDocumentWrapper source;

    42 

    43 	/**

    44 	 * Constructor

    45 	 * 

    46 	 * @param monitor

    47 	 *            the workbench monitor

    48 	 * @param source

    49 	 *            the observed source

    50 	 */

    51 	JFaceSourceChangeListener(WorkbenchEditorMonitor monitor,

    52 			JFaceDocumentWrapper source) {

    53 		this.monitor = monitor;

    54 		this.source = source;

    55 	}

    56 

    57 	/*

    58 	 * (non-Javadoc)

    59 	 * 

    60 	 * @see org.eclipse.jface.text.IDocumentListener#

    61 	 *      documentAboutToBeChanged(org.eclipse.jface.text.DocumentEvent)

    62 	 */

    63 	public void documentAboutToBeChanged(DocumentEvent event) {

    64 		try {

    65 			monitor.sourceAboutToBeChanged(source, event.getOffset(), event

    66 					.getLength(), event.getText());

    67 		} catch (Exception e) {

    68 			if (TraceBuilderConfiguration.ASSERTIONS_ENABLED) {

    69 				TraceBuilderGlobals.getEvents().postCriticalAssertionFailed(

    70 						"Document change preprocessor failure", e); //$NON-NLS-1$

    71 			}

    72 		}

    73 	}

    74 

    75 	/*

    76 	 * (non-Javadoc)

    77 	 * 

    78 	 * @see org.eclipse.jface.text.IDocumentListener#

    79 	 *      documentChanged(org.eclipse.jface.text.DocumentEvent)

    80 	 */

    81 	public void documentChanged(DocumentEvent event) {

    82 		try {

    83 			monitor.sourceChanged(source, event.getOffset(), event.getLength(),

    84 					event.getText());

    85 		} catch (Exception e) {

    86 			if (TraceBuilderConfiguration.ASSERTIONS_ENABLED) {

    87 				TraceBuilderGlobals.getEvents().postCriticalAssertionFailed(

    88 						"Document change processor failure", e); //$NON-NLS-1$

    89 			}

    90 		}

    91 	}

    92 }