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.modules.asm.core.hyperlink;
043:
044: import java.io.IOException;
045:
046: import javax.swing.JEditorPane;
047: import javax.swing.SwingUtilities;
048: import javax.swing.text.Document;
049:
050: import org.netbeans.lib.editor.hyperlink.spi.HyperlinkProvider;
051: import org.netbeans.modules.editor.NbEditorUtilities;
052: import org.openide.cookies.EditCookie;
053: import org.openide.cookies.EditorCookie;
054: import org.openide.cookies.OpenCookie;
055: import org.openide.loaders.DataObject;
056: import org.openide.windows.TopComponent;
057:
058: import org.netbeans.modules.asm.core.assistance.GoToLabelAction;
059: import org.netbeans.modules.asm.core.dataobjects.AsmObjectUtilities;
060: import org.netbeans.modules.asm.model.AsmState;
061:
062: public class AsmHyperlinkProvider implements HyperlinkProvider {
063:
064: private Document lastDocument;
065: private int[] lastResult;
066:
067: private final GoToLabelAction labelResolver = new GoToLabelAction();
068:
069: public AsmHyperlinkProvider() {
070: lastResult = new int[] { -1, -1, -1 };
071: }
072:
073: public boolean isHyperlinkPoint(Document doc, int offset) {
074: AsmState state = AsmObjectUtilities.getAccessor(doc).getState();
075: lastDocument = doc;
076: if (state != null) {
077: int res[] = labelResolver.computeLabel(state, offset);
078: if (res[0] != -1) {
079: lastResult = res;
080: return true;
081: }
082: }
083:
084: return false;
085: }
086:
087: public int[] getHyperlinkSpan(Document doc, int offset) {
088: if (doc != lastDocument && !checkResult()) {
089: return null;
090: }
091:
092: return new int[] { lastResult[0], lastResult[1] };
093: }
094:
095: public void performClickAction(Document doc, int offset) {
096:
097: if (doc != lastDocument || !checkResult()) {
098: return;
099: }
100:
101: DataObject ob = NbEditorUtilities.getDataObject(doc);
102: int position = lastResult[2];
103:
104: if (!openFileInEditor(ob)) {
105: return;
106: }
107:
108: EditorCookie ed = ob
109: .getCookie(org.openide.cookies.EditorCookie.class);
110:
111: if (ed != null) {
112: try {
113: ed.openDocument();
114: } catch (IOException ex) {
115: return;
116: }
117:
118: JEditorPane pane = ed.getOpenedPanes()[0];
119: pane.setCaretPosition(position);
120:
121: TopComponent tc = (TopComponent) SwingUtilities
122: .getAncestorOfClass(TopComponent.class, pane);
123: if (tc != null) {
124: tc.requestActive();
125: }
126: }
127: }
128:
129: private boolean checkResult() {
130: return !(lastResult[0] == -1 || lastResult[1] == -1 || lastResult[2] == -1);
131: }
132:
133: private boolean openFileInEditor(DataObject ob) {
134: EditCookie ck = (EditCookie) ob.getCookie(EditCookie.class);
135: if (ck != null) {
136: ck.edit();
137: return true;
138: }
139: OpenCookie oc = (OpenCookie) ob.getCookie(OpenCookie.class);
140: if (oc != null) {
141: oc.open();
142: return true;
143: }
144: return false;
145: }
146:
147: }
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