trace/tracebuilder/com.nokia.tracebuilder.eclipse/src/com/nokia/tracebuilder/eclipse/JFaceDocumentWrapper.java
changeset 10 ed1c9f64298a
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9:14dc2103a631 10:ed1c9f64298a
       
     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 * Wrapper for JFace IDocument
       
    17 *
       
    18 */
       
    19 package com.nokia.tracebuilder.eclipse;
       
    20 
       
    21 import java.io.File;
       
    22 
       
    23 import org.eclipse.jface.text.BadLocationException;
       
    24 import org.eclipse.jface.text.BadPositionCategoryException;
       
    25 import org.eclipse.jface.text.IDocument;
       
    26 import org.eclipse.ui.IEditorInput;
       
    27 import org.eclipse.ui.texteditor.ITextEditor;
       
    28 
       
    29 import com.nokia.tracebuilder.engine.TraceBuilderConfiguration;
       
    30 import com.nokia.tracebuilder.engine.TraceBuilderGlobals;
       
    31 import com.nokia.tracebuilder.engine.TraceLocation;
       
    32 import com.nokia.tracebuilder.source.SourceDocumentInterface;
       
    33 import com.nokia.tracebuilder.source.SourceErrorCodes;
       
    34 import com.nokia.tracebuilder.source.SourceLocationBase;
       
    35 import com.nokia.tracebuilder.source.SourceLocationInterface;
       
    36 import com.nokia.tracebuilder.source.SourceParserException;
       
    37 import com.nokia.tracebuilder.source.SourcePropertyProvider;
       
    38 import com.nokia.tracebuilder.source.SourceSelector;
       
    39 
       
    40 /**
       
    41  * Wrapper for JFace IDocument and Eclipse ITextEditor
       
    42  * 
       
    43  */
       
    44 final class JFaceDocumentWrapper implements SourceDocumentInterface,
       
    45 		SourceSelector, SourcePropertyProvider {
       
    46 
       
    47 	/**
       
    48 	 * Document position category
       
    49 	 */
       
    50 	public static final String TRACEBUILDER_POSITION_CATEGORY = "TraceBuilder.positions"; //$NON-NLS-1$
       
    51 
       
    52 	/**
       
    53 	 * Document
       
    54 	 */
       
    55 	private IDocument document;
       
    56 
       
    57 	/**
       
    58 	 * Text editor for the document, may be null
       
    59 	 */
       
    60 	private ITextEditor textEditor;
       
    61 
       
    62 	/**
       
    63 	 * Selection listener for the editor
       
    64 	 */
       
    65 	private JFaceSelectionListener selectionListener;
       
    66 
       
    67 	/**
       
    68 	 * Change listener for the editor
       
    69 	 */
       
    70 	private JFaceSourceChangeListener changeListener;
       
    71 
       
    72 	/**
       
    73 	 * Save listener
       
    74 	 */
       
    75 	private JFaceDirtyStateListener saveListener;
       
    76 
       
    77 	/**
       
    78 	 * Location updater
       
    79 	 */
       
    80 	private JFaceLocationUpdater locationUpdater;
       
    81 
       
    82 	/**
       
    83 	 * Owner of this source
       
    84 	 */
       
    85 	private Object owner;
       
    86 
       
    87 	/**
       
    88 	 * Constructor
       
    89 	 * 
       
    90 	 * @param document
       
    91 	 *            the document
       
    92 	 */
       
    93 	JFaceDocumentWrapper(IDocument document) {
       
    94 		this.document = document;
       
    95 	}
       
    96 
       
    97 	/*
       
    98 	 * (non-Javadoc)
       
    99 	 * 
       
   100 	 * @see com.nokia.tracebuilder.source.SourceDocumentInterface#get(int, int)
       
   101 	 */
       
   102 	public String get(int start, int length) throws SourceParserException {
       
   103 		try {
       
   104 			return document.get(start, length);
       
   105 		} catch (BadLocationException e) {
       
   106 			throw new SourceParserException(SourceErrorCodes.BAD_LOCATION);
       
   107 		}
       
   108 	}
       
   109 
       
   110 	/*
       
   111 	 * (non-Javadoc)
       
   112 	 * 
       
   113 	 * @see com.nokia.tracebuilder.source.SourceDocumentInterface#getChar(int)
       
   114 	 */
       
   115 	public char getChar(int offset) throws SourceParserException {
       
   116 		try {
       
   117 			return document.getChar(offset);
       
   118 		} catch (BadLocationException e) {
       
   119 			throw new SourceParserException(SourceErrorCodes.BAD_LOCATION);
       
   120 		}
       
   121 	}
       
   122 
       
   123 	/*
       
   124 	 * (non-Javadoc)
       
   125 	 * 
       
   126 	 * @see com.nokia.tracebuilder.source.SourceDocumentInterface#getLength()
       
   127 	 */
       
   128 	public int getLength() {
       
   129 		return document.getLength();
       
   130 	}
       
   131 
       
   132 	/*
       
   133 	 * (non-Javadoc)
       
   134 	 * 
       
   135 	 * @see com.nokia.tracebuilder.source.SourceDocumentInterface#getLineOfOffset(int)
       
   136 	 */
       
   137 	public int getLineOfOffset(int offset) throws SourceParserException {
       
   138 		try {
       
   139 			return document.getLineOfOffset(offset);
       
   140 		} catch (BadLocationException e) {
       
   141 			throw new SourceParserException(SourceErrorCodes.BAD_LOCATION);
       
   142 		}
       
   143 	}
       
   144 
       
   145 	/*
       
   146 	 * (non-Javadoc)
       
   147 	 * 
       
   148 	 * @see com.nokia.tracebuilder.source.SourceDocumentInterface#replace(int,
       
   149 	 *      int, java.lang.String)
       
   150 	 */
       
   151 	public void replace(int offset, int length, String newText)
       
   152 			throws SourceParserException {
       
   153 		try {
       
   154 			document.replace(offset, length, newText);
       
   155 		} catch (BadLocationException e) {
       
   156 			throw new SourceParserException(SourceErrorCodes.BAD_LOCATION);
       
   157 		}
       
   158 	}
       
   159 
       
   160 	/*
       
   161 	 * (non-Javadoc)
       
   162 	 * 
       
   163 	 * @see com.nokia.tracebuilder.source.SourceDocumentInterface#getPropertyProvider()
       
   164 	 */
       
   165 	public SourcePropertyProvider getPropertyProvider() {
       
   166 		return this;
       
   167 	}
       
   168 
       
   169 	/*
       
   170 	 * (non-Javadoc)
       
   171 	 * 
       
   172 	 * @see com.nokia.tracebuilder.source.SourceDocumentInterface#getSourceSelector()
       
   173 	 */
       
   174 	public SourceSelector getSourceSelector() {
       
   175 		return this;
       
   176 	}
       
   177 
       
   178 	/*
       
   179 	 * (non-Javadoc)
       
   180 	 * 
       
   181 	 * @see com.nokia.tracebuilder.source.SourceSelector#setSelection(int, int)
       
   182 	 */
       
   183 	public void setSelection(int offset, int length) {
       
   184 		if (textEditor != null) {
       
   185 			textEditor.getEditorSite().getPage().bringToTop(textEditor);
       
   186 			textEditor.selectAndReveal(offset, length);
       
   187 		}
       
   188 	}
       
   189 
       
   190 	/*
       
   191 	 * (non-Javadoc)
       
   192 	 * 
       
   193 	 * @see com.nokia.tracebuilder.source.SourcePropertyProvider#getFileName()
       
   194 	 */
       
   195 	public String getFileName() {
       
   196 		String retval = null;
       
   197 		if (textEditor != null) {
       
   198 			IEditorInput input = textEditor.getEditorInput();
       
   199 			String path = WorkbenchUtils.getEditorInputPath(input);
       
   200 			if (path != null) {
       
   201 				retval = new File(path).getName();
       
   202 			}
       
   203 		}
       
   204 		return retval;
       
   205 	}
       
   206 
       
   207 	/*
       
   208 	 * (non-Javadoc)
       
   209 	 * 
       
   210 	 * @see com.nokia.tracebuilder.source.SourcePropertyProvider#getFilePath()
       
   211 	 */
       
   212 	public String getFilePath() {
       
   213 		String retval = null;
       
   214 		if (textEditor != null) {
       
   215 			IEditorInput input = textEditor.getEditorInput();
       
   216 			String path = WorkbenchUtils.getEditorInputPath(input);
       
   217 			if (path != null) {
       
   218 				retval = new File(path).getParent();
       
   219 			}
       
   220 		}
       
   221 		if (retval != null && !retval.endsWith(File.separator)) {
       
   222 			retval += File.separator;
       
   223 		}
       
   224 		return retval;
       
   225 	}
       
   226 
       
   227 	/*
       
   228 	 * (non-Javadoc)
       
   229 	 * 
       
   230 	 * @see com.nokia.tracebuilder.source.SourceDocumentInterface#
       
   231 	 *      addLocation(com.nokia.tracebuilder.source.SourceLocationInterface)
       
   232 	 */
       
   233 	public void addLocation(SourceLocationInterface location) {
       
   234 		String category = getLocationCategory(((JFaceLocationWrapper) location)
       
   235 				.getLocation());
       
   236 		try {
       
   237 			if (category == null) {
       
   238 				document.addPosition((JFaceLocationWrapper) location);
       
   239 			} else {
       
   240 				document.addPosition(category, (JFaceLocationWrapper) location);
       
   241 			}
       
   242 		} catch (Exception e) {
       
   243 			if (TraceBuilderConfiguration.ASSERTIONS_ENABLED) {
       
   244 				TraceBuilderGlobals.getEvents().postCriticalAssertionFailed(
       
   245 						"Failed to add location", e); //$NON-NLS-1$
       
   246 			}
       
   247 		}
       
   248 	}
       
   249 
       
   250 	/*
       
   251 	 * (non-Javadoc)
       
   252 	 * 
       
   253 	 * @see com.nokia.tracebuilder.source.SourceDocumentInterface#
       
   254 	 *      removeLocation(com.nokia.tracebuilder.source.SourceLocationInterface)
       
   255 	 */
       
   256 	public void removeLocation(SourceLocationInterface location) {
       
   257 		String category = getLocationCategory(((JFaceLocationWrapper) location)
       
   258 				.getLocation());
       
   259 		if (category == null) {
       
   260 			document.removePosition((JFaceLocationWrapper) location);
       
   261 		} else {
       
   262 			try {
       
   263 				document.removePosition(category,
       
   264 						(JFaceLocationWrapper) location);
       
   265 			} catch (Exception e) {
       
   266 				if (TraceBuilderConfiguration.ASSERTIONS_ENABLED) {
       
   267 					TraceBuilderGlobals.getEvents()
       
   268 							.postCriticalAssertionFailed(
       
   269 									"Failed to remove location", e); //$NON-NLS-1$
       
   270 				}
       
   271 			}
       
   272 		}
       
   273 	}
       
   274 
       
   275 	/*
       
   276 	 * (non-Javadoc)
       
   277 	 * 
       
   278 	 * @see com.nokia.tracebuilder.source.SourceDocumentInterface#getOwner()
       
   279 	 */
       
   280 	public Object getOwner() {
       
   281 		return owner;
       
   282 	}
       
   283 
       
   284 	/*
       
   285 	 * (non-Javadoc)
       
   286 	 * 
       
   287 	 * @see com.nokia.tracebuilder.source.SourceDocumentInterface#setOwner(java.lang.Object)
       
   288 	 */
       
   289 	public void setOwner(Object owner) {
       
   290 		this.owner = owner;
       
   291 	}
       
   292 
       
   293 	/**
       
   294 	 * Called by the workbench editor monitor to initialize listeners
       
   295 	 * 
       
   296 	 * @param monitor
       
   297 	 *            the workbench monitor
       
   298 	 */
       
   299 	void sourceOpened(WorkbenchEditorMonitor monitor) {
       
   300 		if (monitor != null) {
       
   301 			locationUpdater = new JFaceLocationUpdater(
       
   302 					TRACEBUILDER_POSITION_CATEGORY);
       
   303 			document.addPositionCategory(TRACEBUILDER_POSITION_CATEGORY);
       
   304 			document.addPositionUpdater(locationUpdater);
       
   305 			if (changeListener == null) {
       
   306 				changeListener = new JFaceSourceChangeListener(monitor, this);
       
   307 				document.addDocumentListener(changeListener);
       
   308 			}
       
   309 			if (textEditor != null && selectionListener == null) {
       
   310 				selectionListener = new JFaceSelectionListener(monitor, this);
       
   311 				textEditor.getSite().getPage().addPostSelectionListener(
       
   312 						selectionListener);
       
   313 				saveListener = new JFaceDirtyStateListener(monitor, this);
       
   314 				textEditor.addPropertyListener(saveListener);
       
   315 			}
       
   316 		}
       
   317 	}
       
   318 
       
   319 	/**
       
   320 	 * Performs cleanup. Called by WorkbenchEditorMonitor when source is removed
       
   321 	 */
       
   322 	void sourceClosed() {
       
   323 		if (textEditor != null) {
       
   324 			if (selectionListener != null) {
       
   325 				textEditor.getSite().getPage().removePostSelectionListener(
       
   326 						selectionListener);
       
   327 			}
       
   328 			if (saveListener != null) {
       
   329 				textEditor.removePropertyListener(saveListener);
       
   330 			}
       
   331 		}
       
   332 		if (changeListener != null) {
       
   333 			document.removeDocumentListener(changeListener);
       
   334 		}
       
   335 		document.removePositionUpdater(locationUpdater);
       
   336 		try {
       
   337 			document.removePositionCategory(TRACEBUILDER_POSITION_CATEGORY);
       
   338 		} catch (BadPositionCategoryException e) {
       
   339 			if (TraceBuilderConfiguration.ASSERTIONS_ENABLED) {
       
   340 				TraceBuilderGlobals.getEvents().postAssertionFailed(
       
   341 						"Failed to remove position updater", e); //$NON-NLS-1$
       
   342 			}
       
   343 		}
       
   344 	}
       
   345 
       
   346 	/**
       
   347 	 * Gets the document
       
   348 	 * 
       
   349 	 * @return the document
       
   350 	 */
       
   351 	IDocument getDocument() {
       
   352 		return document;
       
   353 	}
       
   354 
       
   355 	/**
       
   356 	 * Sets the document
       
   357 	 * 
       
   358 	 * @param document
       
   359 	 *            the new document
       
   360 	 */
       
   361 	void setDocument(IDocument document) {
       
   362 		this.document = document;
       
   363 	}
       
   364 
       
   365 	/**
       
   366 	 * Gets the text editor
       
   367 	 * 
       
   368 	 * @return the text editor
       
   369 	 */
       
   370 	ITextEditor getTextEditor() {
       
   371 		return textEditor;
       
   372 	}
       
   373 
       
   374 	/**
       
   375 	 * Sets the text editor
       
   376 	 * 
       
   377 	 * @param textEditor
       
   378 	 *            the new text editor
       
   379 	 */
       
   380 	void setTextEditor(ITextEditor textEditor) {
       
   381 		this.textEditor = textEditor;
       
   382 	}
       
   383 
       
   384 	/**
       
   385 	 * Gets the selection listener
       
   386 	 * 
       
   387 	 * @return the selection listener
       
   388 	 */
       
   389 	JFaceSelectionListener getSelectionListener() {
       
   390 		return selectionListener;
       
   391 	}
       
   392 
       
   393 	/**
       
   394 	 * Gets a category for location
       
   395 	 * 
       
   396 	 * @param location
       
   397 	 *            the location
       
   398 	 * @return the category
       
   399 	 */
       
   400 	private String getLocationCategory(SourceLocationBase location) {
       
   401 		String retval;
       
   402 		if (location instanceof TraceLocation) {
       
   403 			retval = TRACEBUILDER_POSITION_CATEGORY;
       
   404 		} else {
       
   405 			retval = null;
       
   406 		}
       
   407 		return retval;
       
   408 	}
       
   409 
       
   410 }