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.cnd.debugger.gdb.actions;
043:
044: import java.beans.PropertyChangeEvent;
045: import java.beans.PropertyChangeListener;
046: import java.util.Collections;
047: import java.util.Set;
048: import org.netbeans.api.debugger.ActionsManager;
049: import org.netbeans.spi.debugger.ContextProvider;
050: import org.netbeans.modules.cnd.debugger.gdb.CallStackFrame;
051: import org.netbeans.modules.cnd.debugger.gdb.GdbDebugger;
052: import org.netbeans.spi.debugger.ActionsProviderSupport;
053:
054: /**
055: * Representation of a debugging session.
056: *
057: * @author Gordon Prieur (copied from Jan Jancura's JPDA implementation)
058: */
059: public class MakeCallerCurrentActionProvider extends
060: ActionsProviderSupport implements PropertyChangeListener {
061:
062: private ContextProvider lookupProvider;
063: private GdbDebugger debugger;
064:
065: public MakeCallerCurrentActionProvider(
066: ContextProvider lookupProvider) {
067: debugger = lookupProvider.lookupFirst(null, GdbDebugger.class);
068: this .lookupProvider = lookupProvider;
069: debugger.addPropertyChangeListener(
070: GdbDebugger.PROP_CURRENT_CALL_STACK_FRAME, this );
071: }
072:
073: public Set getActions() {
074: return Collections
075: .singleton(ActionsManager.ACTION_MAKE_CALLER_CURRENT);
076: }
077:
078: public void doAction(Object action) {
079: int i = getCurrentCallStackFrameIndex(debugger);
080: if (i < (debugger.getStackDepth() - 1)) {
081: setCurrentCallStackFrameIndex(debugger, i + 1);
082: }
083: }
084:
085: protected void checkEnabled(String debuggerState) {
086: if (GdbDebugger.STATE_STOPPED.equals(debuggerState)) {
087: int i = getCurrentCallStackFrameIndex(debugger);
088: setEnabled(ActionsManager.ACTION_MAKE_CALLER_CURRENT,
089: i < (debugger.getStackDepth() - 1));
090: } else {
091: setEnabled(ActionsManager.ACTION_MAKE_CALLER_CURRENT, false);
092: }
093: }
094:
095: static int getCurrentCallStackFrameIndex(GdbDebugger debugger) {
096: CallStackFrame csf = debugger.getCurrentCallStackFrame();
097: if (csf != null) {
098: return csf.getFrameNumber();
099: } else {
100: return -1;
101: }
102: }
103:
104: static void setCurrentCallStackFrameIndex(GdbDebugger debugger,
105: int index) {
106: if (index < debugger.getStackDepth()) {
107: CallStackFrame csf = debugger.getCallStack().get(index);
108: csf.makeCurrent();
109: }
110: }
111:
112: public void propertyChange(PropertyChangeEvent evt) {
113: checkEnabled(debugger.getState());
114: }
115: }
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