debuggerplugin.cpp

/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** No Commercial Usage
**
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights.  These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**************************************************************************/

#include "debuggerplugin.h"

#include "debuggerstartparameters.h"
#include "debuggeractions.h"
#include "debuggerconstants.h"
#include "debuggercore.h"
#include "debuggerdialogs.h"
#include "debuggerengine.h"
#include "debuggermainwindow.h"
#include "debuggerrunner.h"
#include "debuggerruncontrolfactory.h"
#include "debuggerstringutils.h"
#include "debuggertooltip.h"

#include "breakpoint.h"
#include "breakhandler.h"
#include "breakwindow.h"
#include "consolewindow.h"
#include "disassembleragent.h"
#include "logwindow.h"
#include "moduleswindow.h"
#include "moduleshandler.h"
#include "registerwindow.h"
#include "snapshotwindow.h"
#include "stackhandler.h"
#include "stackwindow.h"
#include "sourcefileswindow.h"
#include "threadswindow.h"
#include "watchhandler.h"
#include "watchwindow.h"
#include "watchutils.h"

#include "snapshothandler.h"
#include "threadshandler.h"
#include "gdb/gdboptionspage.h"

#include "ui_commonoptionspage.h"
#include "ui_dumperoptionpage.h"

#include <coreplugin/actionmanager/actionmanager.h>
#include <coreplugin/actionmanager/actioncontainer.h>
#include <coreplugin/actionmanager/command.h>
#include <coreplugin/uniqueidmanager.h>
#include <coreplugin/imode.h>
#include <coreplugin/coreconstants.h>
#include <coreplugin/dialogs/ioptionspage.h>
#include <coreplugin/editormanager/editormanager.h>
#include <coreplugin/findplaceholder.h>
#include <coreplugin/icontext.h>
#include <coreplugin/icore.h>
#include <coreplugin/imode.h>
#include <coreplugin/icorelistener.h>
#include <coreplugin/manhattanstyle.h>
#include <coreplugin/minisplitter.h>
#include <coreplugin/modemanager.h>

#include <cppeditor/cppeditorconstants.h>
#include <cplusplus/ModelManagerInterface.h>

#include <extensionsystem/pluginmanager.h>

#include <projectexplorer/project.h>
#include <projectexplorer/projectexplorer.h>
#include <projectexplorer/projectexplorerconstants.h>
#include <projectexplorer/session.h>
#include <projectexplorer/target.h>
#include <projectexplorer/toolchain.h>
#include <projectexplorer/toolchaintype.h>

#include <qt4projectmanager/qt4projectmanagerconstants.h>

#include <texteditor/basetexteditor.h>
#include <texteditor/fontsettings.h>
#include <texteditor/texteditorsettings.h>

#include <utils/qtcassert.h>
#include <utils/savedaction.h>
#include <utils/styledbar.h>
#include <utils/proxyaction.h>

#include <qml/scriptconsole.h>

#include <QtCore/QTimer>
#include <QtCore/QtPlugin>
#include <QtGui/QComboBox>
#include <QtGui/QDockWidget>
#include <QtGui/QFileDialog>
#include <QtGui/QMenu>
#include <QtGui/QMessageBox>
#include <QtGui/QPushButton>
#include <QtGui/QTextBlock>
#include <QtGui/QTextCursor>
#include <QtGui/QToolButton>
#include <QtGui/QTreeWidget>

#include <climits>

#define DEBUG_STATE 1
#ifdef DEBUG_STATE
//#   define STATE_DEBUG(s)
//    do { QString msg; QTextStream ts(&msg); ts << s;
//      showMessage(msg, LogDebug); } while (0)
#   define STATE_DEBUG(s) do { qDebug() << s; } while(0)
#else
#   define STATE_DEBUG(s)
#endif

/*!
    \namespace Debugger
    Debugger plugin namespace
*/

/*!
    \namespace Debugger::Internal
    Internal namespace of the Debugger plugin
*/

/*!
    \class Debugger::DebuggerEngine

    \brief Base class of a debugger engine.

    Note: the Debugger process itself and any helper processes like
    gdbserver, the trk client etc are referred to as 'Engine',
    whereas the debugged process is referred to as 'Inferior'.

    Transitions marked by '---' are done in the individual engines.
    Transitions marked by '+-+' are done in the base DebuggerEngine.
    Transitions marked by '*' are done asynchronously.

    The GdbEngine->setupEngine() function is described in more detail below.

    The engines are responsible for local roll-back to the last
    acknowledged state before calling notify*Failed. I.e. before calling
    notifyEngineSetupFailed() any process started during setupEngine()
    so far must be terminated.
    \code

                        DebuggerNotReady
                         progressmanager/progressmanager.cpp      +
                      EngineSetupRequested
                               +
                  (calls *Engine->setupEngine())
                            |      |
                            |      |
                       {notify-  {notify-
                        Engine-   Engine-
                        SetupOk}  SetupFailed}
                            +      +
                            +      `+-+-+> EngineSetupFailed
                            +                   +
                            +    [calls RunControl->startFailed]
                            +                   +
                            +             DebuggerFinished
                            v
                      EngineSetupOk
                            +
             [calls RunControl->StartSuccessful]
                            +
                  InferiorSetupRequested
                            +
             (calls *Engine->setupInferior())
                         |       |
                         |       |
                    {notify-   {notify-
                     Inferior- Inferior-
                     SetupOk}  SetupFailed}
                         +       +
                         +       ` +-+-> InferiorSetupFailed +-+-+-+-+-+->.
                         +                                                +
                  InferiorSetupOk                                         +
                         +                                                +
                  EngineRunRequested                                      +
                         +                                                +
                 (calls *Engine->runEngine())                             +
               /       |            |        \                            +
             /         |            |          \                          +
            | (core)   | (attach)   |           |                         +
            |          |            |           |                         +
      {notify-    {notifyER&- {notifyER&-  {notify-                       +
      Inferior-     Inferior-   Inferior-  EngineRun-                     +
     Unrunnable}     StopOk}     RunOk}     Failed}                       +
           +           +            +           +                         +
   InferiorUnrunnable  +     InferiorRunOk      +                         +
                       +                        +                         +
                InferiorStopOk            EngineRunFailed                 +
                                                +                         v
                                                 `-+-+-+-+-+-+-+-+-+-+-+>-+
                                                                          +
                                                                          +
                       #Interrupt@InferiorRunOk#                          +
                                  +                                       +
                          InferiorStopRequested                           +
  #SpontaneousStop                +                                       +
   @InferiorRunOk#         (calls *Engine->                               +
          +               interruptInferior())                            +
      {notify-               |          |                                 +
     Spontaneous-       {notify-    {notify-                              +
      Inferior-          Inferior-   Inferior-                            +
       StopOk}           StopOk}    StopFailed}                           +
           +              +             +                                 +
            +            +              +                                 +
            InferiorStopOk              +                                 +
                  +                     +                                 +
                  +                    +                                  +
                  +                   +                                   +
        #Stop@InferiorUnrunnable#    +                                    +
          #Creator Close Event#     +                                     +
                       +           +                                      +
                InferiorShutdownRequested                                 +
                            +                                             +
           (calls *Engine->shutdownInferior())                            +
                         |        |                                       +
                    {notify-   {notify-                                   +
                     Inferior- Inferior-                                  +
                  ShutdownOk}  ShutdownFailed}                            +
                         +        +                                       +
                         +        +                                       +
  #Inferior exited#      +        +                                       +
         |               +        +                                       +
   {notifyInferior-      +        +                                       +
      Exited}            +        +                                       +
           +             +        +                                       +
     InferiorExitOk      +        +                                       +
             +           +        +                                       +
            InferiorShutdownOk InferiorShutdownFailed                     +
                      *          *                                        +
                  EngineShutdownRequested                                 +
                            +                                             +
           (calls *Engine->shutdownEngine())  <+-+-+-+-+-+-+-+-+-+-+-+-+-+'
                         |        |
                         |        |
                    {notify-   {notify-
                     Engine-    Engine-
                  ShutdownOk}  ShutdownFailed}
                         +       +
            EngineShutdownOk  EngineShutdownFailed
                         *       *
                     DebuggerFinished

\endcode */

/* Here is a matching graph as a GraphViz graph. View it using
 * \code
grep "^sg1:" debuggerplugin.cpp | cut -c5- | dot -osg1.ps -Tps && gv sg1.ps

sg1: digraph DebuggerStates {
sg1:   DebuggerNotReady -> EngineSetupRequested
sg1:   EngineSetupRequested -> EngineSetupOk [ label="notifyEngineSetupOk", style="dashed" ];
sg1:   EngineSetupRequested -> EngineSetupFailed [ label= "notifyEngineSetupFailed", style="dashed"];
sg1:   EngineSetupFailed -> DebuggerFinished [ label= "RunControl::StartFailed" ];
sg1:   EngineSetupOk -> InferiorSetupRequested [ label= "RunControl::StartSuccessful" ];
sg1:   InferiorSetupRequested -> InferiorSetupOk [ label="notifyInferiorSetupOk", style="dashed" ];
sg1:   InferiorSetupRequested -> InferiorSetupFailed [ label="notifyInferiorFailed", style="dashed" ];
sg1:   InferiorSetupOk -> EngineRunRequested
sg1:   InferiorSetupFailed -> EngineShutdownRequested
sg1:   EngineRunRequested -> InferiorUnrunnable [ label="notifyInferiorUnrunnable", style="dashed" ];
sg1:   EngineRunRequested -> InferiorStopOk [ label="notifyEngineRunAndInferiorStopOk", style="dashed" ];
sg1:   EngineRunRequested -> InferiorRunOk [ label="notifyEngineRunAndInferiorRunOk", style="dashed" ];
sg1:   EngineRunRequested -> EngineRunFailed [ label="notifyEngineRunFailed", style="dashed" ];
sg1:   EngineRunFailed -> EngineShutdownRequested
sg1:   InferiorRunOk -> InferiorStopOk [ label="SpontaneousStop\nnotifyInferiorSpontaneousStop", style="dashed" ];
sg1:   InferiorRunOk -> InferiorStopRequested [ label="User stop\nEngine::interruptInferior", style="dashed"];
sg1:   InferiorStopRequested -> InferiorStopOk [ label="notifyInferiorStopOk", style="dashed" ];
sg1:   InferiorStopRequested -> InferiorShutdownRequested  [ label="notifyInferiorStopFailed", style="dashed" ];
sg1:   InferiorStopOk -> InferiorRunRequested [ label="User\nEngine::continueInferior" ];
sg1:   InferiorRunRequested -> InferiorRunOk [ label="notifyInferiorRunOk", style="dashed"];
sg1:   InferiorRunRequested -> InferiorRunFailed [ label="notifyInferiorRunFailed", style="dashed"];
sg1:   InferiorRunFailed -> InferiorStopOk
sg1:   InferiorStopOk -> InferiorShutdownRequested [ label="Close event" ];
sg1:   InferiorUnrunnable -> InferiorShutdownRequested [ label="Close event" ];
sg1:   InferiorShutdownRequested -> InferiorShutdownOk [ label= "Engine::shutdownInferior\nnotifyInferiorShutdownOk", style="dashed" ];
sg1:   InferiorShutdownRequested -> InferiorShutdownFailed [ label="Engine::shutdownInferior\nnotifyInferiorShutdownFailed", style="dashed" ];
sg1:   InferiorExited -> InferiorExitOk [ label="notifyInferiorExited", style="dashed"];
sg1:   InferiorExitOk -> InferiorShutdownOk
sg1:   InferiorShutdownOk -> EngineShutdownRequested
sg1:   InferiorShutdownFailed -> EngineShutdownRequested
sg1:   EngineShutdownRequested -> EngineShutdownOk [ label="Engine::shutdownEngine\nnotifyEngineShutdownOk", style="dashed" ];
sg1:   EngineShutdownRequested -> EngineShutdownFailed  [ label="Engine::shutdownEngine\nnotifyEngineShutdownFailed", style="dashed" ];
sg1:   EngineShutdownOk -> DebuggerFinished  [ style = "dotted" ];
sg1:   EngineShutdownFailed  -> DebuggerFinished [ style = "dotted" ];
sg1: }
* \endcode */
// Additional signalling:    {notifyInferiorIll}   {notifyEngineIll}


/*!
    \class Debugger::Internal::GdbEngine
    \brief Implementation of Debugger::Engine driving a gdb executable.

    GdbEngine specific startup. All happens in EngineSetupRequested state:

    Transitions marked by '---' are done in the individual adapters.

    Transitions marked by '+-+' are done in the GdbEngine.

    \code
                  GdbEngine::setupEngine()
                          +
            (calls *Adapter->startAdapter())
                          |      |
                          |      `---> handleAdapterStartFailed()
                          |                   +
                          |             {notifyEngineSetupFailed}
                          |
                 handleAdapterStarted()
                          +
                 {notifyEngineSetupOk}



                GdbEngine::setupInferior()
                          +
            (calls *Adapter->prepareInferior())
                          |      |
                          |      `---> handlePrepareInferiorFailed()
                          |                   +
                          |             {notifyInferiorSetupFailed}
                          |
                handleInferiorPrepared()
                          +
                {notifyInferiorSetupOk}

\endcode */

using namespace Core;
using namespace Debugger::Constants;
using namespace ProjectExplorer;
using namespace TextEditor;

namespace CC = Core::Constants;
namespace PE = ProjectExplorer::Constants;


namespace Debugger {
namespace Constants {

const char * const M_DEBUG_START_DEBUGGING = "QtCreator.Menu.Debug.StartDebugging";

const char * const STARTEXTERNAL        = "Debugger.StartExternal";
const char * const ATTACHEXTERNAL       = "Debugger.AttachExternal";
const char * const ATTACHCORE           = "Debugger.AttachCore";
const char * const ATTACHTCF            = "Debugger.AttachTcf";
const char * const ATTACHREMOTE         = "Debugger.AttachRemote";
const char * const ATTACHREMOTECDB      = "Debugger.AttachRemoteCDB";
const char * const STARTREMOTELLDB      = "Debugger.StartRemoteLLDB";
const char * const DETACH               = "Debugger.Detach";

const char * const RUN_TO_LINE1         = "Debugger.RunToLine1";
const char * const RUN_TO_LINE2         = "Debugger.RunToLine2";
const char * const RUN_TO_FUNCTION      = "Debugger.RunToFunction";
const char * const JUMP_TO_LINE1        = "Debugger.JumpToLine1";
const char * const JUMP_TO_LINE2        = "Debugger.JumpToLine2";
const char * const RETURN_FROM_FUNCTION = "Debugger.ReturnFromFunction";
const char * const SNAPSHOT             = "Debugger.Snapshot";
const char * const TOGGLE_BREAK         = "Debugger.ToggleBreak";
const char * const BREAK_BY_FUNCTION    = "Debugger.BreakByFunction";
const char * const BREAK_AT_MAIN        = "Debugger.BreakAtMain";
const char * const ADD_TO_WATCH1        = "Debugger.AddToWatch1";
const char * const ADD_TO_WATCH2        = "Debugger.AddToWatch2";
const char * const OPERATE_BY_INSTRUCTION  = "Debugger.OperateByInstruction";
const char * const FRAME_UP             = "Debugger.FrameUp";
const char * const FRAME_DOWN           = "Debugger.FrameDown";

#ifdef Q_WS_MAC
const char * const STOP_KEY                 = "Shift+Ctrl+Y";
const char * const RESET_KEY                = "Ctrl+Shift+F5";
const char * const STEP_KEY                 = "Ctrl+Shift+I";
const char * const STEPOUT_KEY              = "Ctrl+Shift+T";
const char * const NEXT_KEY                 = "Ctrl+Shift+O";
const char * const REVERSE_KEY              = "";
const char * const RUN_TO_LINE_KEY          = "Shift+F8";
const char * const RUN_TO_FUNCTION_KEY      = "Ctrl+F6";
const char * const JUMP_TO_LINE_KEY         = "Ctrl+D,Ctrl+L";
const char * const TOGGLE_BREAK_KEY         = "F8";
const char * const BREAK_BY_FUNCTION_KEY    = "Ctrl+D,Ctrl+F";
const char * const BREAK_AT_MAIN_KEY        = "Ctrl+D,Ctrl+M";
const char * const ADD_TO_WATCH_KEY         = "Ctrl+D,Ctrl+W";
const char * const SNAPSHOT_KEY             = "Ctrl+D,Ctrl+S";
#else
const char * const STOP_KEY                 = "Shift+F5";
const char * const RESET_KEY                = "Ctrl+Shift+F5";
const char * const STEP_KEY                 = "F11";
const char * const STEPOUT_KEY              = "Shift+F11";
const char * const NEXT_KEY                 = "F10";
const char * const REVERSE_KEY              = "F12";
const char * const RUN_TO_LINE_KEY          = "";
const char * const RUN_TO_FUNCTION_KEY      = "";
const char * const JUMP_TO_LINE_KEY         = "";
const char * const TOGGLE_BREAK_KEY         = "F9";
const char * const BREAK_BY_FUNCTION_KEY    = "";
const char * const BREAK_AT_MAIN_KEY        = "";
const char * const ADD_TO_WATCH_KEY         = "Ctrl+Alt+Q";
const char * const SNAPSHOT_KEY             = "Ctrl+D,Ctrl+S";
#endif

} // namespace Constants


namespace Internal {

// FIXME: Outdated?
// The createCdbEngine function takes a list of options pages it can add to.
// This allows for having a "enabled" toggle on the page independently
// of the engine. That's good for not enabling the related ActiveX control
// unnecessarily.

void addCdbOptionPages(QList<IOptionsPage*> *opts);
void addGdbOptionPages(QList<IOptionsPage*> *opts);
void addScriptOptionPages(QList<IOptionsPage*> *opts);
void addTcfOptionPages(QList<IOptionsPage*> *opts);

#ifdef WITH_LLDB
void addLldbOptionPages(QList<IOptionsPage*> *opts);
#endif

static SessionManager *sessionManager()
{
    return ProjectExplorerPlugin::instance()->session();
}

static QToolButton *toolButton(QAction *action)
{
    QToolButton *button = new QToolButton;
    button->setDefaultAction(action);
    return button;
}

struct AttachRemoteParameters
{
    AttachRemoteParameters() : attachPid(0), winCrashEvent(0) {}
    void clear();

    quint64 attachPid;
    QString attachTarget;  // core file name or  server:port
    // Event handle for attaching to crashed Windows processes.
    quint64 winCrashEvent;
};

void AttachRemoteParameters::clear()
{
    attachPid = winCrashEvent = 0;
    attachTarget.clear();
}


///////////////////////////////////////////////////////////////////////
//
// DummyEngine
//
///////////////////////////////////////////////////////////////////////

class DummyEngine : public DebuggerEngine
{
    Q_OBJECT

public:
    DummyEngine() : DebuggerEngine(DebuggerStartParameters()) {}
    ~DummyEngine() {}

    void setupEngine() {}
    void setupInferior() {}
    void runEngine() {}
    void shutdownEngine() {}
    void shutdownInferior() {}
    void executeDebuggerCommand(const QString &) {}
    unsigned debuggerCapabilities() const { return 0; }
    bool acceptsBreakpoint(BreakpointId) const { return false; }
};

static DebuggerEngine *dummyEngine()
{
    static DummyEngine dummy;
    return &dummy;
}


///////////////////////////////////////////////////////////////////////
//
// DebugMode
//
///////////////////////////////////////////////////////////////////////

class DebugMode : public IMode
{
public:
    DebugMode() : m_widget(0) { setObjectName(QLatin1String("DebugMode")); }

    ~DebugMode()
    {
        // Make sure the editor manager does not get deleted.
        //EditorManager::instance()->setParent(0);
        delete m_widget;
    }

    // IMode
    QString displayName() const { return DebuggerPlugin::tr("Debug"); }
    QIcon icon() const { return QIcon(__(":/fancyactionbar/images/mode_Debug.png")); }
    int priority() const { return P_MODE_DEBUG; }
    QWidget *widget();
    QString id() const { return MODE_DEBUG; }
    QString type() const { return CC::MODE_EDIT_TYPE; }
    Context context() const
        { return Context(CC::C_EDITORMANAGER, C_DEBUGMODE, CC::C_NAVIGATION_PANE); }
    QString contextHelpId() const { return QString(); }
private:
    QWidget *m_widget;
};


///////////////////////////////////////////////////////////////////////
//
// CommonOptionsPage
//
///////////////////////////////////////////////////////////////////////

class CommonOptionsPage : public Core::IOptionsPage
{
public:
    CommonOptionsPage() {}

    // IOptionsPage
    QString id() const
        { return _(DEBUGGER_COMMON_SETTINGS_ID); }
    QString displayName() const
        { return QCoreApplication::translate("Debugger", DEBUGGER_COMMON_SETTINGS_NAME); }
    QString category() const
        { return _(DEBUGGER_SETTINGS_CATEGORY);  }
    QString displayCategory() const
        { return QCoreApplication::translate("Debugger", DEBUGGER_SETTINGS_TR_CATEGORY); }
    QIcon categoryIcon() const
        { return QIcon(QLatin1String(DEBUGGER_COMMON_SETTINGS_CATEGORY_ICON)); }

    QWidget *createPage(QWidget *parent);
    void apply() { m_group.apply(ICore::instance()->settings()); }
    void finish() { m_group.finish(); }
    virtual bool matches(const QString &s) const;

private:
    Ui::CommonOptionsPage m_ui;
    Utils::SavedActionSet m_group;
    QString m_searchKeywords;
};

QWidget *CommonOptionsPage::createPage(QWidget *parent)
{
    QWidget *w = new QWidget(parent);
    m_ui.setupUi(w);
    m_group.clear();

    m_group.insert(debuggerCore()->action(ListSourceFiles),
        m_ui.checkBoxListSourceFiles);
    m_group.insert(debuggerCore()->action(UseAlternatingRowColors),
        m_ui.checkBoxUseAlternatingRowColors);
    m_group.insert(debuggerCore()->action(UseToolTipsInMainEditor),
        m_ui.checkBoxUseToolTipsInMainEditor);
    m_group.insert(debuggerCore()->action(CloseBuffersOnExit),
        m_ui.checkBoxCloseBuffersOnExit);
    m_group.insert(debuggerCore()->action(SwitchModeOnExit),
        m_ui.checkBoxSwitchModeOnExit);
    m_group.insert(debuggerCore()->action(AutoDerefPointers), 0);
    m_group.insert(debuggerCore()->action(UseToolTipsInLocalsView), 0);
    m_group.insert(debuggerCore()->action(UseToolTipsInBreakpointsView), 0);
    m_group.insert(debuggerCore()->action(UseAddressInBreakpointsView), 0);
    m_group.insert(debuggerCore()->action(UseAddressInStackView), 0);
    m_group.insert(debuggerCore()->action(MaximalStackDepth),
        m_ui.spinBoxMaximalStackDepth);
    m_group.insert(debuggerCore()->action(ShowStdNamespace), 0);
    m_group.insert(debuggerCore()->action(ShowQtNamespace), 0);
    m_group.insert(debuggerCore()->action(SortStructMembers), 0);
    m_group.insert(debuggerCore()->action(LogTimeStamps), 0);
    m_group.insert(debuggerCore()->action(VerboseLog), 0);
    m_group.insert(debuggerCore()->action(BreakOnThrow), 0);
    m_group.insert(debuggerCore()->action(BreakOnCatch), 0);
#ifdef Q_OS_WIN
    Utils::SavedAction *registerAction = debuggerCore()->action(RegisterForPostMortem);
    m_group.insert(registerAction,
        m_ui.checkBoxRegisterForPostMortem);
    connect(registerAction, SIGNAL(toggled(bool)),
            m_ui.checkBoxRegisterForPostMortem, SLOT(setChecked(bool)));
#endif

    if (m_searchKeywords.isEmpty()) {
        QLatin1Char sep(' ');
        QTextStream(&m_searchKeywords)
                << sep << m_ui.checkBoxUseAlternatingRowColors->text()
                << sep << m_ui.checkBoxUseToolTipsInMainEditor->text()
                << sep << m_ui.checkBoxListSourceFiles->text()
#ifdef Q_OS_WIN
                << sep << m_ui.checkBoxRegisterForPostMortem->text()
#endif
                << sep << m_ui.checkBoxCloseBuffersOnExit->text()
                << sep << m_ui.checkBoxSwitchModeOnExit->text()
                << sep << m_ui.labelMaximalStackDepth->text()
                   ;
        m_searchKeywords.remove(QLatin1Char('&'));
    }
#ifndef Q_OS_WIN
    m_ui.checkBoxRegisterForPostMortem->setVisible(false);
#endif
    return w;
}

bool CommonOptionsPage::matches(const QString &s) const
{
    return m_searchKeywords.contains(s, Qt::CaseInsensitive);
}

///////////////////////////////////////////////////////////////////////
//
// DebuggingHelperOptionPage
//
///////////////////////////////////////////////////////////////////////

static bool oxygenStyle()
{
    const ManhattanStyle *ms = qobject_cast<const ManhattanStyle *>(qApp->style());
    return ms && !qstrcmp("OxygenStyle", ms->baseStyle()->metaObject()->className());
}

class DebuggingHelperOptionPage : public Core::IOptionsPage
{
    Q_OBJECT // Needs tr-context.
public:
    DebuggingHelperOptionPage() {}

    // IOptionsPage
    QString id() const { return _("Z.DebuggingHelper"); }
    QString displayName() const { return tr("Debugging Helper"); }
    QString category() const { return _(DEBUGGER_SETTINGS_CATEGORY); }
    QString displayCategory() const
    { return QCoreApplication::translate("Debugger", DEBUGGER_SETTINGS_TR_CATEGORY); }
    QIcon categoryIcon() const
    { return QIcon(QLatin1String(DEBUGGER_COMMON_SETTINGS_CATEGORY_ICON)); }

    QWidget *createPage(QWidget *parent);
    void apply() { m_group.apply(ICore::instance()->settings()); }
    void finish() { m_group.finish(); }
    virtual bool matches(const QString &s) const;

private:
    Ui::DebuggingHelperOptionPage m_ui;
    Utils::SavedActionSet m_group;
    QString m_searchKeywords;
};

QWidget *DebuggingHelperOptionPage::createPage(QWidget *parent)
{
    QWidget *w = new QWidget(parent);
    m_ui.setupUi(w);

    m_ui.dumperLocationChooser->setExpectedKind(Utils::PathChooser::Command);
    m_ui.dumperLocationChooser->setPromptDialogTitle(tr("Choose DebuggingHelper Location"));
    m_ui.dumperLocationChooser->setInitialBrowsePathBackup(
        ICore::instance()->resourcePath() + "../../lib");

    m_group.clear();
    m_group.insert(debuggerCore()->action(UseDebuggingHelpers),
        m_ui.debuggingHelperGroupBox);
    m_group.insert(debuggerCore()->action(UseCustomDebuggingHelperLocation),
        m_ui.customLocationGroupBox);
    // Suppress Oxygen style's giving flat group boxes bold titles.
    if (oxygenStyle())
        m_ui.customLocationGroupBox->setStyleSheet(_("QGroupBox::title { font: ; }"));

    m_group.insert(debuggerCore()->action(CustomDebuggingHelperLocation),
        m_ui.dumperLocationChooser);

    m_group.insert(debuggerCore()->action(UseCodeModel),
        m_ui.checkBoxUseCodeModel);
    m_group.insert(debuggerCore()->action(ShowThreadNames),
        m_ui.checkBoxShowThreadNames);


#ifndef QT_DEBUG
#if 0
    cmd = am->registerAction(m_dumpLogAction,
        DUMP_LOG, globalcontext);
    //cmd->setDefaultKeySequence(QKeySequence(tr("Ctrl+D,Ctrl+L")));
    cmd->setDefaultKeySequence(QKeySequence(tr("Ctrl+Shift+F11")));
    mdebug->addAction(cmd);
#endif
#endif

    if (m_searchKeywords.isEmpty()) {
        QTextStream(&m_searchKeywords)
                << ' ' << m_ui.debuggingHelperGroupBox->title()
                << ' ' << m_ui.customLocationGroupBox->title()
                << ' ' << m_ui.dumperLocationLabel->text()
                << ' ' << m_ui.checkBoxUseCodeModel->text()
                << ' ' << m_ui.checkBoxShowThreadNames->text();
        m_searchKeywords.remove(QLatin1Char('&'));
    }
    return w;
}

bool DebuggingHelperOptionPage::matches(const QString &s) const
{
    return m_searchKeywords.contains(s, Qt::CaseInsensitive);
}


///////////////////////////////////////////////////////////////////////
//
// Argument parsing
//
///////////////////////////////////////////////////////////////////////

static QString msgParameterMissing(const QString &a)
{
    return DebuggerPlugin::tr("Option '%1' is missing the parameter.").arg(a);
}

static QString msgInvalidNumericParameter(const QString &a, const QString &number)
{
    return DebuggerPlugin::tr("The parameter '%1' of option '%2' is not a number.").arg(number, a);
}

static bool parseArgument(QStringList::const_iterator &it,
    const QStringList::const_iterator &cend,
    AttachRemoteParameters *attachRemoteParameters,
    unsigned *enabledEngines, QString *errorMessage)
{
    const QString &option = *it;
    // '-debug <pid>'
    // '-debug <corefile>'
    // '-debug <server:port>'
    if (*it == _("-debug")) {
        ++it;
        if (it == cend) {
            *errorMessage = msgParameterMissing(*it);
            return false;
        }
        bool ok;
        attachRemoteParameters->attachPid = it->toULongLong(&ok);
        if (!ok)
            attachRemoteParameters->attachTarget = *it;
        return true;
    }
    // -wincrashevent <event-handle>. A handle used for
    // a handshake when attaching to a crashed Windows process.
    if (*it == _("-wincrashevent")) {
        ++it;
        if (it == cend) {
            *errorMessage = msgParameterMissing(*it);
            return false;
        }
        bool ok;
        attachRemoteParameters->winCrashEvent = it->toULongLong(&ok);
        if (!ok) {
            *errorMessage = msgInvalidNumericParameter(option, *it);
            return false;
        }
        return true;
    }
    // Engine disabling.
    if (option == _("-disable-cdb")) {
        *enabledEngines &= ~CdbEngineType;
        return true;
    }
    if (option == _("-disable-gdb")) {
        *enabledEngines &= ~GdbEngineType;
        return true;
    }
    if (option == _("-disable-qmldb")) {
        *enabledEngines &= ~QmlEngineType;
        return true;
    }
    if (option == _("-disable-sdb")) {
        *enabledEngines &= ~ScriptEngineType;
        return true;
    }
    if (option == _("-disable-tcf")) {
        *enabledEngines &= ~TcfEngineType;
        return true;
    }
    if (option == _("-disable-lldb")) {
        *enabledEngines &= ~LldbEngineType;
        return true;
    }

    *errorMessage = DebuggerPlugin::tr("Invalid debugger option: %1").arg(option);
    return false;
}

static bool parseArguments(const QStringList &args,
   AttachRemoteParameters *attachRemoteParameters,
   unsigned *enabledEngines, QString *errorMessage)
{
    attachRemoteParameters->clear();
    const QStringList::const_iterator cend = args.constEnd();
    for (QStringList::const_iterator it = args.constBegin(); it != cend; ++it)
        if (!parseArgument(it, cend, attachRemoteParameters, enabledEngines, errorMessage))
            return false;
    if (Constants::Internal::debug)
        qDebug().nospace() << args << "engines=0x"
            << QString::number(*enabledEngines, 16)
            << " pid" << attachRemoteParameters->attachPid
            << " target" << attachRemoteParameters->attachTarget << '\n';
    return true;
}


///////////////////////////////////////////////////////////////////////
//
// Misc
//
///////////////////////////////////////////////////////////////////////

static bool isDebuggable(IEditor *editor)
{
    // Only blacklist Qml. Whitelisting would fail on C++ code in files
    // with strange names, more harm would be done this way.
    //   IFile *file = editor->file();
    //   return !(file && file->mimeType() == "application/x-qml");
    // Nowadays, even Qml is debuggable.
    return editor;
}

class ContextData
{
public:
    ContextData() : lineNumber(0), address(0) {}

public:
    QString fileName;
    int lineNumber;
    quint64 address;
};

} // namespace Internal
} // namespace Debugger

Q_DECLARE_METATYPE(Debugger::Internal::ContextData)

///////////////////////////////////////////////////////////////////////
//
// Debugger Actions
//
///////////////////////////////////////////////////////////////////////

namespace Debugger {
namespace Internal {

struct DebuggerActions
{
    QAction *continueAction;
    QAction *exitAction; // on the application output button if "Stop" is possible
    QAction *interruptAction; // on the fat debug button if "Pause" is possible
    QAction *undisturbableAction; // on the fat debug button if nothing can be done
    QAction *resetAction; // FIXME: Should not be needed in a stable release
    QAction *stepAction;
    QAction *stepOutAction;
    QAction *runToLineAction; // Debug menu
    QAction *runToFunctionAction;
    QAction *jumpToLineAction; // in the Debug menu
    QAction *returnFromFunctionAction;
    QAction *nextAction;
    //QAction *snapshotAction;
    QAction *watchAction1; // in the Debug menu
    QAction *watchAction2; // in the text editor context menu
    QAction *breakAction;
    QAction *sepAction;
    QAction *reverseDirectionAction;
    QAction *frameUpAction;
    QAction *frameDownAction;
};

static DebuggerPluginPrivate *theDebuggerCore = 0;


///////////////////////////////////////////////////////////////////////
//
// DebuggerPluginPrivate
//
///////////////////////////////////////////////////////////////////////

class DebuggerPluginPrivate : public DebuggerCore
{
    Q_OBJECT

public:
    explicit DebuggerPluginPrivate(DebuggerPlugin *plugin);
    ~DebuggerPluginPrivate();

    bool initialize(const QStringList &arguments, QString *errorMessage);
    void extensionsInitialized();
    void aboutToShutdown();

    void connectEngine(DebuggerEngine *engine);
    void disconnectEngine() { connectEngine(0); }
    DebuggerEngine *currentEngine() const { return m_currentEngine; }

public slots:
    void selectThread(int index)
    {
        currentEngine()->selectThread(index);
    }

    void breakpointSetMarginActionTriggered()
    {
        const QAction *action = qobject_cast<const QAction *>(sender());
        QTC_ASSERT(action, return);
        const ContextData data = action->data().value<ContextData>();
        if (data.address)
            toggleBreakpointByAddress(data.address);
        else
            toggleBreakpointByFileAndLine(data.fileName, data.lineNumber);
    }

    void breakpointRemoveMarginActionTriggered()
    {
        const QAction *act = qobject_cast<QAction *>(sender());
        QTC_ASSERT(act, return);
        m_breakHandler->removeBreakpoint(act->data().toInt());
     }

    void breakpointEnableMarginActionTriggered()
    {
        const QAction *act = qobject_cast<QAction *>(sender());
        QTC_ASSERT(act, return);
        breakHandler()->setEnabled(act->data().toInt(), true);
    }

    void breakpointDisableMarginActionTriggered()
    {
        const QAction *act = qobject_cast<QAction *>(sender());
        QTC_ASSERT(act, return);
        breakHandler()->setEnabled(act->data().toInt(), false);
    }

    void updateWatchersHeader(int section, int, int newSize)
    {
        m_watchersWindow->header()->resizeSection(section, newSize);
    }

    void sourceFilesDockToggled(bool on)
    {
        if (on && m_currentEngine->state() == InferiorStopOk)
            m_currentEngine->reloadSourceFiles();
    }

    void modulesDockToggled(bool on)
    {
        if (on && m_currentEngine->state() == InferiorStopOk)
            m_currentEngine->reloadModules();
    }

    void registerDockToggled(bool on)
    {
        if (on && m_currentEngine->state() == InferiorStopOk)
            m_currentEngine->reloadRegisters();
    }

    void synchronizeBreakpoints()
    {
        showMessage("ATTEMPT SYNC", LogDebug);
        for (int i = 0, n = m_snapshotHandler->size(); i != n; ++i) {
            if (DebuggerEngine *engine = m_snap