001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU
007: * General Public License Version 2 only ("GPL") or the Common
008: * Development and Distribution License("CDDL") (collectively, the
009: * "License"). You may not use this file except in compliance with the
010: * License. You can obtain a copy of the License at
011: * http://www.netbeans.org/cddl-gplv2.html
012: * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013: * specific language governing permissions and limitations under the
014: * License. When distributing the software, include this License Header
015: * Notice in each file and include the License file at
016: * nbbuild/licenses/CDDL-GPL-2-CP. Sun designates this
017: * particular file as subject to the "Classpath" exception as provided
018: * by Sun in the GPL Version 2 section of the License file that
019: * accompanied this code. If applicable, add the following below the
020: * License Header, with the fields enclosed by brackets [] replaced by
021: * your own identifying information:
022: * "Portions Copyrighted [year] [name of copyright owner]"
023: *
024: * Contributor(s):
025: *
026: * The Original Software is NetBeans. The Initial Developer of the Original
027: * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
028: * Microsystems, Inc. All Rights Reserved.
029: *
030: * If you wish your version of this file to be governed by only the CDDL
031: * or only the GPL Version 2, indicate your decision by adding
032: * "[Contributor] elects to include this software in this distribution
033: * under the [CDDL or GPL Version 2] license." If you do not indicate a
034: * single choice of license, a recipient has the option to distribute
035: * your version of this file under either the CDDL, the GPL Version 2 or
036: * to extend the choice of license to its licensees as provided above.
037: * However, if you add GPL Version 2 code and therefore, elected the GPL
038: * Version 2 license, then the option applies only if the new code is
039: * made subject to such option by the copyright holder.
040: */
041:
042: package org.netbeans.lib.lexer.inc;
043:
044: import java.util.logging.Level;
045: import java.util.logging.Logger;
046: import javax.swing.event.DocumentEvent;
047: import javax.swing.event.DocumentListener;
048: import javax.swing.text.Document;
049: import org.netbeans.api.lexer.InputAttributes;
050: import org.netbeans.api.lexer.Language;
051: import org.netbeans.api.lexer.TokenId;
052: import org.netbeans.lib.editor.util.swing.DocumentListenerPriority;
053: import org.netbeans.lib.editor.util.swing.DocumentUtilities;
054: import org.netbeans.lib.lexer.LanguageManager;
055: import org.netbeans.spi.lexer.*;
056:
057: /**
058: * Control structure for managing of the lexer for a given document.
059: * <br>
060: * There is one structure for a document. It can be obtained by
061: * {@link #get(Document)}.
062: * <br>
063: * Each document that wants to use the lexer framework
064: * must be initialized by using {@link #init(Document, boolean, Object)}.
065: *
066: * @author Miloslav Metelka
067: * @version 1.00
068: */
069:
070: public final class DocumentInput<D extends Document> extends
071: MutableTextInput<D> implements DocumentListener {
072:
073: // -J-Dorg.netbeans.lib.lexer.TokenHierarchyOperation.level=FINE
074: private static final Logger LOG = Logger
075: .getLogger(org.netbeans.lib.lexer.TokenHierarchyOperation.class
076: .getName());
077:
078: private static final String PROP_MIME_TYPE = "mimeType"; //NOI18N
079:
080: public static synchronized <D extends Document> DocumentInput<D> get(
081: D doc) {
082: @SuppressWarnings("unchecked")
083: DocumentInput<D> di = (DocumentInput<D>) doc
084: .getProperty(MutableTextInput.class);
085: if (di == null) {
086: di = new DocumentInput<D>(doc);
087: doc.putProperty(MutableTextInput.class, di);
088: }
089: return di;
090: }
091:
092: private D doc;
093:
094: private CharSequence text;
095:
096: public DocumentInput(D doc) {
097: this .doc = doc;
098: this .text = DocumentUtilities.getText(doc);
099: // Add document listener with the appropriate priority (if priority listening is supported)
100: DocumentUtilities.addDocumentListener(doc, this ,
101: DocumentListenerPriority.LEXER);
102: }
103:
104: @Override
105: protected Language<?> language() {
106: Language<?> lang = (Language<?>) doc
107: .getProperty(Language.class);
108: if (lang == null) {
109: String mimeType = (String) doc.getProperty(PROP_MIME_TYPE);
110: if (mimeType != null) {
111: lang = LanguageManager.getInstance().findLanguage(
112: mimeType);
113: }
114: }
115: return lang;
116: }
117:
118: @Override
119: protected CharSequence text() {
120: return text;
121: }
122:
123: @Override
124: protected InputAttributes inputAttributes() {
125: return (InputAttributes) doc.getProperty(InputAttributes.class);
126: }
127:
128: @Override
129: protected D inputSource() {
130: return doc;
131: }
132:
133: @Override
134: protected boolean isReadLocked() {
135: return DocumentUtilities.isReadLocked(doc);
136: }
137:
138: @Override
139: protected boolean isWriteLocked() {
140: return DocumentUtilities.isWriteLocked(doc);
141: }
142:
143: public void changedUpdate(DocumentEvent e) {
144: }
145:
146: public void insertUpdate(DocumentEvent e) {
147: tokenHierarchyControl().textModified(e.getOffset(), 0, null,
148: e.getLength());
149: }
150:
151: public void removeUpdate(DocumentEvent e) {
152: tokenHierarchyControl().textModified(e.getOffset(),
153: e.getLength(),
154: DocumentUtilities.getModificationText(e), 0);
155: }
156:
157: }
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