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.palette;
043:
044: import org.openide.ErrorManager;
045: import org.openide.text.ActiveEditorDrop;
046: import org.openide.util.Lookup;
047: import org.openide.util.lookup.InstanceContent;
048:
049: /**
050: *
051: * @author Libor Kotouc
052: */
053: class ActiveEditorDropProvider implements
054: InstanceContent.Convertor<String, ActiveEditorDrop> {
055:
056: private static ActiveEditorDropProvider instance = new ActiveEditorDropProvider();
057:
058: /** Creates a new instance of ActiveEditorDropProvider */
059: private ActiveEditorDropProvider() {
060: }
061:
062: static ActiveEditorDropProvider getInstance() {
063: return instance;
064: }
065:
066: public Class<? extends ActiveEditorDrop> type(String obj) {
067: //able to convert String instances only
068: return ActiveEditorDrop.class;
069: }
070:
071: public String id(String obj) {
072: return obj;
073: }
074:
075: public String displayName(String obj) {
076: return obj;
077: }
078:
079: public ActiveEditorDrop convert(String obj) {
080: return getActiveEditorDrop(obj);
081: }
082:
083: private ActiveEditorDrop getActiveEditorDrop(String instanceName) {
084:
085: ActiveEditorDrop drop = null;
086:
087: if (instanceName != null && instanceName.trim().length() > 0) {//we should try to instantiate item drop
088: try {
089: ClassLoader loader = (ClassLoader) Lookup.getDefault()
090: .lookup(ClassLoader.class);
091: if (loader == null)
092: loader = getClass().getClassLoader();
093: Class instanceClass = loader.loadClass(instanceName);
094: drop = (ActiveEditorDrop) instanceClass.newInstance();
095: } catch (Exception ex) {
096: ErrorManager.getDefault().notify(
097: ErrorManager.INFORMATIONAL, ex);
098: }
099: }
100:
101: return drop;
102: }
103:
104: }
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