Debugger: Fix crash toggling Stack/"Derefence Pointers" without project

Enable debugger actions correctly.
Reviewed-by: hjk <qtc-committer@nokia.com>

src/plugins/debugger/breakwindow.cpp

@@ -30,6 +30,7 @@
 #include "breakwindow.h"
 
 #include "debuggeractions.h"
+#include "debuggermanager.h"
 #include "ui_breakcondition.h"
 #include "ui_breakbyfunction.h"
 
@@ -179,6 +180,7 @@ void BreakWindow::contextMenuEvent(QContextMenuEvent *ev)
     editConditionAction->setEnabled(si.size() > 0);
 
     QAction *synchronizeAction = new QAction(tr("Synchronize breakpoints"), &menu);
+    synchronizeAction->setEnabled(Debugger::DebuggerManager::instance()->debuggerActionsEnabled());
 
     QModelIndex idx0 = (si.size() ? si.front() : QModelIndex());
     QModelIndex idx2 = idx0.sibling(idx0.row(), 2);

src/plugins/debugger/debuggermanager.cpp

@@ -1684,11 +1684,51 @@ void DebuggerManager::setState(DebuggerState state)
     d->m_actions.runToFunctionAction->setEnabled(stopped);
     d->m_actions.jumpToLineAction->setEnabled(stopped);
     d->m_actions.nextAction->setEnabled(stopped);
+
+    const bool actionsEnabled = debuggerActionsEnabled();
+    theDebuggerAction(RecheckDebuggingHelpers)->setEnabled(actionsEnabled);
+    theDebuggerAction(AutoDerefPointers)->setEnabled(actionsEnabled && d->m_engine->isGdbEngine());
+    theDebuggerAction(ExpandStack)->setEnabled(actionsEnabled);
+    theDebuggerAction(ExecuteCommand)->setEnabled(d->m_state != DebuggerNotReady);
+
     emit stateChanged(d->m_state);
     const bool notbusy = state == InferiorStopped
         || state == DebuggerNotReady
         || state == InferiorUnrunnable;
     setBusyCursor(!notbusy);
+
+}
+
+bool DebuggerManager::debuggerActionsEnabled() const
+{
+    if (!d->m_engine)
+        return false;
+    switch (state()) {
+    case InferiorPrepared:
+    case InferiorStarting:
+    case InferiorRunningRequested:
+    case InferiorRunning:
+    case InferiorUnrunnable:
+    case InferiorStopping:
+    case InferiorStopped:
+        return true;
+    case DebuggerNotReady:
+    case EngineStarting:
+    case AdapterStarting:
+    case AdapterStarted:
+    case AdapterStartFailed:
+    case InferiorPreparing:
+    case InferiorPreparationFailed:
+    case InferiorStartFailed:
+    case InferiorStopFailed:
+    case InferiorShuttingDown:
+    case InferiorShutDown:
+    case InferiorShutdownFailed:
+    case AdapterShuttingDown:
+    case AdapterShutdownFailed:
+        break;
+    }
+    return false;
 }
 
 QDebug operator<<(QDebug d, DebuggerState state)

src/plugins/debugger/debuggermanager.h

@@ -175,6 +175,8 @@ public:
 
     void showMessageBox(int icon, const QString &title, const QString &text);
 
+    bool debuggerActionsEnabled() const;
+
     static DebuggerManager *instance();
 
 public slots:

src/plugins/debugger/moduleswindow.cpp

@@ -105,11 +105,15 @@ void ModulesWindow::contextMenuEvent(QContextMenuEvent *ev)
     if (index.isValid())
         name = model()->data(index).toString();
 
+
     QMenu menu;
+    const bool enabled = Debugger::DebuggerManager::instance()->debuggerActionsEnabled();
     QAction *act0 = new QAction(tr("Update module list"), &menu);
-    QAction *act3 = new QAction(tr("Show source files for module \"%1\"").arg(name),
-         &menu);
+    act0->setEnabled(enabled);
+    QAction *act3 = new QAction(tr("Show source files for module \"%1\"").arg(name), &menu);
+    act3->setEnabled(enabled);
     QAction *act4 = new QAction(tr("Load symbols for all modules"), &menu);
+    act4->setEnabled(enabled);
     QAction *act5 = 0;
     QAction *act6 = 0;
     QAction *act7 = 0;

src/plugins/debugger/registerwindow.cpp

@@ -177,6 +177,7 @@ void RegisterWindow::contextMenuEvent(QContextMenuEvent *ev)
     } else {
         actShowMemory->setText(tr("Open memory editor at %1").arg(address));
     }
+    actShowMemory->setEnabled(m_manager->debuggerActionsEnabled());
     menu.addSeparator();
 
     int base = model()->data(QModelIndex(), RegisterNumberBaseRole).toInt();

src/plugins/debugger/sourcefileswindow.cpp

@@ -29,6 +29,7 @@
 
 #include "sourcefileswindow.h"
 #include "debuggeractions.h"
+#include "debuggermanager.h"
 
 #include <QtCore/QDebug>
 #include <QtCore/QFileInfo>
@@ -199,6 +200,7 @@ void SourceFilesWindow::contextMenuEvent(QContextMenuEvent *ev)
 
     QMenu menu;
     QAction *act1 = new QAction(tr("Reload data"), &menu);
+    act1->setEnabled(Debugger::DebuggerManager::instance()->debuggerActionsEnabled());
     //act1->setCheckable(true);
     QAction *act2 = 0;
     if (name.isEmpty()) {

src/plugins/debugger/stackhandler.cpp

@@ -240,6 +240,7 @@ bool StackHandler::isDebuggingDebuggingHelpers() const
 
 ThreadData::ThreadData(int threadId) :
     id(threadId),
+    address(0),
     line(-1)
 {
 }

src/plugins/debugger/stackwindow.cpp

@@ -102,7 +102,7 @@ void StackWindow::contextMenuEvent(QContextMenuEvent *ev)
         actShowMemory->setEnabled(false);
     } else {
         actShowMemory->setText(tr("Open memory editor at %1").arg(address));
-    }
+    }    
 
     QAction *actShowDisassembler = menu.addAction(QString());
     if (address.isEmpty()) {
@@ -113,8 +113,9 @@ void StackWindow::contextMenuEvent(QContextMenuEvent *ev)
     }
 
     menu.addSeparator();
-
+#if 0 // @TODO: not implemented
     menu.addAction(theDebuggerAction(UseToolTipsInStackView));
+#endif
     menu.addAction(theDebuggerAction(UseAddressInStackView));
 
     QAction *actAdjust = menu.addAction(tr("Adjust column widths to contents"));

src/plugins/debugger/watchwindow.cpp

@@ -245,16 +245,15 @@ void WatchWindow::contextMenuEvent(QContextMenuEvent *ev)
     }
 
     QMenu menu;
-    //QAction *actWatchExpressionInWindow
-    // = theDebuggerAction(WatchExpressionInWindow);
-    //menu.addAction(actWatchExpressionInWindow);
 
     QAction *actInsertNewWatchItem = menu.addAction(tr("Insert new watch item"));
     QAction *actSelectWidgetToWatch = menu.addAction(tr("Select widget to watch"));
 
     const QString address = model()->data(mi0, AddressRole).toString();
     QAction *actWatchKnownMemory = 0;
-    QAction *actWatchUnknownMemory = new QAction(tr("Open memory editor..."), &menu);;
+    QAction *actWatchUnknownMemory = new QAction(tr("Open memory editor..."), &menu);
+    actWatchUnknownMemory->setEnabled(m_manager->debuggerActionsEnabled());
+
     if (!address.isEmpty())
         actWatchKnownMemory = new QAction(tr("Open memory editor at %1").arg(address), &menu);
     menu.addSeparator();
@@ -270,6 +269,7 @@ void WatchWindow::contextMenuEvent(QContextMenuEvent *ev)
         menu.addAction(actWatchKnownMemory);
     menu.addAction(actWatchUnknownMemory);
     menu.addSeparator();
+
     menu.addAction(theDebuggerAction(RecheckDebuggingHelpers));
     menu.addAction(theDebuggerAction(UseDebuggingHelpers));
 
@@ -277,8 +277,7 @@ void WatchWindow::contextMenuEvent(QContextMenuEvent *ev)
     menu.addAction(theDebuggerAction(UseToolTipsInLocalsView));
     
     menu.addAction(theDebuggerAction(AutoDerefPointers));
-    theDebuggerAction(AutoDerefPointers)->
-        setEnabled(m_manager->currentEngine()->isGdbEngine());
+
     QAction *actAdjustColumnWidths =
         menu.addAction(tr("Adjust column widths to contents"));
     QAction *actAlwaysAdjustColumnWidth =