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 2005-2007 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.modules.search;
043:
044: import java.util.ArrayList;
045: import java.util.Collections;
046: import java.util.List;
047: import org.openidex.search.SearchType;
048:
049: /**
050: * Registry for everything related to the Find dialog.
051: * It is <em>not</em> designed to be persistent across invocations
052: * of the IDE.
053: *
054: * @author Marian Petras
055: */
056: public final class FindDialogMemory {
057:
058: /** maximum count of stored file name patterns */
059: private static final int maxFileNamePatternCount = 10;
060: /** maximum count of stored replacement expressions */
061: private static final int maxReplExprCount = 10;
062:
063: /** singleton instance of this class */
064: private static FindDialogMemory singleton;
065:
066: /**
067: * stores the last used <code>SearchType</code>
068: */
069: private SearchType lastSearchType = null;
070: /**
071: * storage of last used file name patterns
072: * (initially {@code null})
073: */
074: private List<String> fileNamePatterns;
075: /**
076: * storage of last used replacement expressions
077: * (initially {@code null})
078: */
079: private List<String> replExpressions;
080:
081: /**
082: * Storage of last used Whole Words option.
083: */
084: private boolean wholeWords;
085:
086: /**
087: * Storage of last used Case Sensitive option.
088: */
089: private boolean caseSensitive;
090:
091: /**
092: * Storage of last used Regular Expression option.
093: */
094: private boolean regularExpression;
095:
096: /**
097: * whether a full text pattern was used last time
098: */
099: private boolean textPatternSpecified;
100:
101: /**
102: * whether file name pattern was used last time
103: */
104: private boolean fileNamePatternSpecified;
105:
106: /** Creates a new instance of FindDialogMemory */
107: private FindDialogMemory() {
108: }
109:
110: /**
111: */
112: public static FindDialogMemory getDefault() {
113: if (singleton == null) {
114: singleton = new FindDialogMemory();
115: }
116: return singleton;
117: }
118:
119: /**
120: */
121: public void setLastUsedSearchType(SearchType searchType) {
122: lastSearchType = searchType;
123: }
124:
125: /**
126: */
127: public SearchType getLastSearchType() {
128: return lastSearchType;
129: }
130:
131: /**
132: * Stores a file name pattern.
133: * If the number of patterns would exceed the maximum
134: * number of patterns that can be stored, the oldest
135: * pattern is removed prior to storing the new pattern.
136: *
137: * @param pattern pattern to be stored
138: */
139: void storeFileNamePattern(String pattern) {
140: if (fileNamePatterns == null) {
141: fileNamePatterns = new ArrayList<String>(
142: maxFileNamePatternCount);
143: fileNamePatterns.add(pattern);
144: return;
145: }
146:
147: assert !fileNamePatterns.isEmpty();
148:
149: int index = fileNamePatterns.indexOf(pattern);
150: if (index != -1) {
151: if (index == fileNamePatterns.size() - 1) {
152: return;
153: }
154:
155: fileNamePatterns.remove(index);
156: } else if (fileNamePatterns.size() == maxFileNamePatternCount) {
157: fileNamePatterns.remove(0);
158: }
159: fileNamePatterns.add(pattern);
160: }
161:
162: /**
163: * Returns last used file name patterns in order
164: * from the oldest ones to the most recently used ones.
165: *
166: * @return list of the last used file name patterns, or an empty list
167: * if no file name patterns are stored
168: */
169: List<String> getFileNamePatterns() {
170: assert fileNamePatterns == null || !fileNamePatterns.isEmpty();
171:
172: return (fileNamePatterns != null) ? fileNamePatterns
173: : Collections.<String> emptyList();
174: }
175:
176: /**
177: * Stores a replacement expression.
178: * If the number of replacement expressions would exceed the maximum
179: * number of replacement expressions that can be stored, the oldest
180: * expression is removed prior to storing the new expression.
181: *
182: * @param expression replacement expression to be stored
183: */
184: void storeReplacementExpression(String expression) {
185: if (replExpressions == null) {
186: replExpressions = new ArrayList<String>(maxReplExprCount);
187: replExpressions.add(expression);
188: return;
189: }
190:
191: assert !replExpressions.isEmpty();
192:
193: int index = replExpressions.indexOf(expression);
194: if (index != -1) {
195: if (index == replExpressions.size() - 1) {
196: return;
197: }
198:
199: replExpressions.remove(index);
200: } else if (replExpressions.size() == maxReplExprCount) {
201: replExpressions.remove(0);
202: }
203: replExpressions.add(expression);
204: }
205:
206: /**
207: * Returns last used replacement expressions in order
208: * from the oldest ones to the most recently used ones.
209: *
210: * @return list of last used replacement expressions, or an empty list
211: * if no replacement expressions are stored
212: */
213: List<String> getReplacementExpressions() {
214: assert replExpressions == null || !replExpressions.isEmpty();
215:
216: return (replExpressions != null) ? replExpressions
217: : Collections.<String> emptyList();
218: }
219:
220: public boolean isWholeWords() {
221: return wholeWords;
222: }
223:
224: public void setWholeWords(boolean wholeWords) {
225: this .wholeWords = wholeWords;
226: }
227:
228: public boolean isCaseSensitive() {
229: return caseSensitive;
230: }
231:
232: public void setCaseSensitive(boolean caseSensitive) {
233: this .caseSensitive = caseSensitive;
234: }
235:
236: public boolean isRegularExpression() {
237: return regularExpression;
238: }
239:
240: public void setRegularExpression(boolean regularExpression) {
241: this .regularExpression = regularExpression;
242: }
243:
244: boolean isTextPatternSpecified() {
245: return textPatternSpecified;
246: }
247:
248: void setTextPatternSpecified(boolean specified) {
249: textPatternSpecified = specified;
250: }
251:
252: boolean isFileNamePatternSpecified() {
253: return fileNamePatternSpecified;
254: }
255:
256: void setFileNamePatternSpecified(boolean specified) {
257: fileNamePatternSpecified = specified;
258: }
259:
260: }
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