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 1997-2006 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.project.ui.api;
043:
044: import java.beans.PropertyChangeEvent;
045: import java.beans.PropertyChangeListener;
046: import java.beans.PropertyChangeSupport;
047:
048: import java.util.List;
049:
050: import org.netbeans.modules.project.ui.OpenProjectList;
051:
052: /**
053: * Provides simple information about recent projects and fires PropertyChangeEvent
054: * in case of change in the list of recent projects
055: * @author Milan Kubec
056: * @since 1.9.0
057: */
058: public final class RecentProjects {
059:
060: /**
061: * Property representing recent project information
062: */
063: public static final String PROP_RECENT_PROJECT_INFO = "RecentProjectInformation"; // NOI18N
064:
065: private static final RecentProjects INSTANCE = new RecentProjects();
066:
067: private PropertyChangeSupport pch;
068:
069: public static RecentProjects getDefault() {
070: return INSTANCE;
071: }
072:
073: /**
074: * Creates a new instance of RecentProjects
075: */
076: private RecentProjects() {
077: pch = new PropertyChangeSupport(this );
078: OpenProjectList.getDefault().addPropertyChangeListener(
079: new PropertyChangeListener() {
080: public void propertyChange(PropertyChangeEvent evt) {
081: if (evt
082: .getPropertyName()
083: .equals(
084: OpenProjectList.PROPERTY_RECENT_PROJECTS)) {
085: pch
086: .firePropertyChange(new PropertyChangeEvent(
087: RecentProjects.class,
088: PROP_RECENT_PROJECT_INFO,
089: null, null));
090: }
091: }
092: });
093: }
094:
095: /**
096: * Gets simple info {@link org.netbeans.modules.project.ui.api.UnloadedProjectInformation} about recent projects in IDE.
097: * Project in the list might not exist or might not be valid e.g. in case when
098: * project was deleted or changed. It's responsibility of the user of the API
099: * to make sure the project exists and is valid.
100: * @return list of project information about recently opened projects
101: */
102: public List<UnloadedProjectInformation> getRecentProjectInformation() {
103: return OpenProjectList.getDefault()
104: .getRecentProjectsInformation();
105: }
106:
107: /**
108: * Adds a listener, use WeakListener or properly remove listeners
109: * @param listener listener to be added
110: */
111: public void addPropertyChangeListener(
112: PropertyChangeListener listener) {
113: pch.addPropertyChangeListener(listener);
114: }
115:
116: /**
117: * Removes a listener
118: * @param listener listener to be removed
119: */
120: public void removePropertyChangeListener(
121: PropertyChangeListener listener) {
122: pch.removePropertyChangeListener(listener);
123: }
124:
125: }
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