src/plugins/debugger/qml/qmlengine.cpp

   1 /**************************************************************************
   2 **
   3 ** This file is part of Qt Creator
   4 **
   5 ** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
   6 **
   7 ** Contact: Nokia Corporation (info@qt.nokia.com)
   8 **
   9 **
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  11 **
  12 ** This file may be used under the terms of the GNU Lesser General Public
  13 ** License version 2.1 as published by the Free Software Foundation and
  14 ** appearing in the file LICENSE.LGPL included in the packaging of this file.
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  16 ** Public License version 2.1 requirements will be met:
  17 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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  19 ** In addition, as a special exception, Nokia gives you certain additional
  20 ** rights. These rights are described in the Nokia Qt LGPL Exception
  21 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
  22 **
  23 ** Other Usage
  24 **
  25 ** Alternatively, this file may be used in accordance with the terms and
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  31 **************************************************************************/
  32
  33 #include "qmlengine.h"
  34 #include "qmladapter.h"
  35
  36 #include "debuggerstartparameters.h"
  37 #include "debuggeractions.h"
  38 #include "debuggerconstants.h"
  39 #include "debuggercore.h"
  40 #include "debuggerdialogs.h"
  41 #include "debuggermainwindow.h"
  42 #include "debuggerrunner.h"
  43 #include "debuggerstringutils.h"
  44 #include "debuggertooltipmanager.h"
  45
  46 #include "breakhandler.h"
  47 #include "moduleshandler.h"
  48 #include "registerhandler.h"
  49 #include "stackhandler.h"
  50 #include "watchhandler.h"
  51 #include "watchutils.h"
  52
  53 #include <extensionsystem/pluginmanager.h>
  54 #include <projectexplorer/applicationlauncher.h>
  55
  56 #include <utils/environment.h>
  57 #include <utils/qtcassert.h>
  58 #include <utils/fileinprojectfinder.h>
  59
  60 #include <coreplugin/icore.h>
  61 #include <coreplugin/helpmanager.h>
  62
  63 #include <QtCore/QDateTime>
  64 #include <QtCore/QDebug>
  65 #include <QtCore/QDir>
  66 #include <QtCore/QFileInfo>
  67 #include <QtCore/QTimer>
  68
  69 #include <QtGui/QAction>
  70 #include <QtGui/QApplication>
  71 #include <QtGui/QMainWindow>
  72 #include <QtGui/QMessageBox>
  73 #include <QtGui/QToolTip>
  74 #include <QtGui/QTextDocument>
  75
  76 #include <QtNetwork/QTcpSocket>
  77 #include <QtNetwork/QHostAddress>
  78
  79 #define DEBUG_QML 1
  80 #if DEBUG_QML
  81 #   define SDEBUG(s) qDebug() << s
  82 #else
  83 #   define SDEBUG(s)
  84 #endif
  85 # define XSDEBUG(s) qDebug() << s
  86
  87 using namespace ProjectExplorer;
  88
  89 namespace Debugger {
  90 namespace Internal {
  91
  92 class QmlEnginePrivate
  93 {
  94 public:
  95     explicit QmlEnginePrivate(QmlEngine *q);
  96
  97 private:
  98     friend class QmlEngine;
  99     QmlAdapter m_adapter;
 100     ApplicationLauncher m_applicationLauncher;
 101     Utils::FileInProjectFinder fileFinder;
 102     QTimer m_noDebugOutputTimer;
 103 };
 104
 105 QmlEnginePrivate::QmlEnginePrivate(QmlEngine *q)
 106     : m_adapter(q)
 107 {}
 108
 109
 110 ///////////////////////////////////////////////////////////////////////
 111 //
 112 // QmlEngine
 113 //
 114 ///////////////////////////////////////////////////////////////////////
 115
 116 QmlEngine::QmlEngine(const DebuggerStartParameters &startParameters,
 117         DebuggerEngine *masterEngine)
 118   : DebuggerEngine(startParameters, masterEngine),
 119     d(new QmlEnginePrivate(this))
 120 {
 121     setObjectName(QLatin1String("QmlEngine"));
 122
 123     ExtensionSystem::PluginManager *pluginManager =
 124         ExtensionSystem::PluginManager::instance();
 125     pluginManager->addObject(this);
 126
 127     connect(&d->m_adapter, SIGNAL(connectionError(QAbstractSocket::SocketError)),
 128         SLOT(connectionError(QAbstractSocket::SocketError)));
 129     connect(&d->m_adapter, SIGNAL(serviceConnectionError(QString)),
 130         SLOT(serviceConnectionError(QString)));
 131     connect(&d->m_adapter, SIGNAL(connected()),
 132         SLOT(connectionEstablished()));
 133     connect(&d->m_adapter, SIGNAL(connectionStartupFailed()),
 134         SLOT(connectionStartupFailed()));
 135
 136     connect(&d->m_applicationLauncher,
 137         SIGNAL(processExited(int)),
 138         SLOT(disconnected()));
 139     connect(&d->m_applicationLauncher,
 140         SIGNAL(appendMessage(QString, Utils::OutputFormat)),
 141         SLOT(appendMessage(QString, Utils::OutputFormat)));
 142     connect(&d->m_applicationLauncher,
 143             SIGNAL(processStarted()),
 144             &d->m_noDebugOutputTimer,
 145             SLOT(start()));
 146
 147     // Only wait 8 seconds for the 'Waiting for connection' on application ouput, then just try to connect
 148     // (application output might be redirected / blocked)
 149     d->m_noDebugOutputTimer.setSingleShot(true);
 150     d->m_noDebugOutputTimer.setInterval(8000);
 151     connect(&d->m_noDebugOutputTimer, SIGNAL(timeout()), this, SLOT(beginConnection()));
 152 }
 153
 154 QmlEngine::~QmlEngine()
 155 {
 156     ExtensionSystem::PluginManager *pluginManager =
 157         ExtensionSystem::PluginManager::instance();
 158
 159     if (pluginManager->allObjects().contains(this)) {
 160         pluginManager->removeObject(this);
 161     }
 162
 163     delete d;
 164 }
 165
 166 void QmlEngine::setupInferior()
 167 {
 168     QTC_ASSERT(state() == InferiorSetupRequested, qDebug() << state());
 169
 170     if (startParameters().startMode == AttachToRemoteServer) {
 171         emit requestRemoteSetup();
 172         if (startParameters().qmlServerPort != quint16(-1))
 173             notifyInferiorSetupOk();
 174     } if (startParameters().startMode == AttachToQmlPort) {
 175             notifyInferiorSetupOk();
 176
 177     } else {
 178         d->m_applicationLauncher.setEnvironment(startParameters().environment);
 179         d->m_applicationLauncher.setWorkingDirectory(startParameters().workingDirectory);
 180
 181         notifyInferiorSetupOk();
 182     }
 183 }
 184
 185 void QmlEngine::appendMessage(const QString &msg, Utils::OutputFormat /* format */)
 186 {
 187     showMessage(msg, AppOutput); // FIXME: Redirect to RunControl
 188 }
 189
 190 void QmlEngine::connectionEstablished()
 191 {
 192     attemptBreakpointSynchronization();
 193
 194     showMessage(tr("QML Debugger connected."), StatusBar);
 195
 196     if (!watchHandler()->watcherNames().isEmpty()) {
 197         synchronizeWatchers();
 198     }
 199     connect(watchersModel(),SIGNAL(layoutChanged()),this,SLOT(synchronizeWatchers()));
 200
 201     notifyEngineRunAndInferiorRunOk();
 202 }
 203
 204 void QmlEngine::beginConnection()
 205 {
 206     d->m_noDebugOutputTimer.stop();
 207     showMessage(tr("QML Debugger connecting..."), StatusBar);
 208     d->m_adapter.beginConnection();
 209 }
 210
 211 void QmlEngine::connectionStartupFailed()
 212 {
 213     Core::ICore * const core = Core::ICore::instance();
 214     QMessageBox *infoBox = new QMessageBox(core->mainWindow());
 215     infoBox->setIcon(QMessageBox::Critical);
 216     infoBox->setWindowTitle(tr("Qt Creator"));
 217     infoBox->setText(tr("Could not connect to the in-process QML debugger.\n"
 218                         "Do you want to retry?"));
 219     infoBox->setStandardButtons(QMessageBox::Retry | QMessageBox::Cancel | QMessageBox::Help);
 220     infoBox->setDefaultButton(QMessageBox::Retry);
 221     infoBox->setModal(true);
 222
 223     connect(infoBox, SIGNAL(finished(int)),
 224             this, SLOT(retryMessageBoxFinished(int)));
 225
 226     infoBox->show();
 227 }
 228
 229 void QmlEngine::retryMessageBoxFinished(int result)
 230 {
 231     switch (result) {
 232     case QMessageBox::Retry: {
 233         beginConnection();
 234         break;
 235     }
 236     case QMessageBox::Help: {
 237         Core::HelpManager *helpManager = Core::HelpManager::instance();
 238         helpManager->handleHelpRequest("qthelp://com.nokia.qtcreator/doc/creator-debugging-qml.html");
 239         // fall through
 240     }
 241     default:
 242         notifyEngineRunFailed();
 243         break;
 244     }
 245 }
 246
 247 void QmlEngine::connectionError(QAbstractSocket::SocketError socketError)
 248 {
 249     if (socketError == QAbstractSocket::RemoteHostClosedError)
 250         showMessage(tr("QML Debugger: Remote host closed connection."), StatusBar);
 251
 252     notifyInferiorSpontaneousStop();
 253     notifyInferiorIll();
 254 }
 255
 256 void QmlEngine::serviceConnectionError(const QString &serviceName)
 257 {
 258     showMessage(tr("QML Debugger: Could not connect to service '%1'.")
 259         .arg(serviceName), StatusBar);
 260 }
 261
 262 bool QmlEngine::canDisplayTooltip() const
 263 {
 264     return state() == InferiorRunOk || state() == InferiorStopOk;
 265 }
 266
 267 void QmlEngine::filterApplicationMessage(const QString &msg, int /*channel*/)
 268 {
 269     static const QString qddserver = QLatin1String("QDeclarativeDebugServer: ");
 270     static const QString cannotRetrieveDebuggingOutput = ApplicationLauncher::msgWinCannotRetrieveDebuggingOutput();
 271
 272     const int index = msg.indexOf(qddserver);
 273     if (index != -1) {
 274         // we're actually getting debug output
 275         d->m_noDebugOutputTimer.stop();
 276
 277         QString status = msg;
 278         status.remove(0, index + qddserver.length()); // chop of 'QDeclarativeDebugServer: '
 279
 280         static QString waitingForConnection = QLatin1String("Waiting for connection ");
 281         static QString unableToListen = QLatin1String("Unable to listen ");
 282         static QString debuggingNotEnabled = QLatin1String("Ignoring \"-qmljsdebugger=");
 283         static QString debuggingNotEnabled2 = QLatin1String("Ignoring\"-qmljsdebugger="); // There is (was?) a bug in one of the error strings - safest to handle both
 284         static QString connectionEstablished = QLatin1String("Connection established");
 285
 286         QString errorMessage;
 287         if (status.startsWith(waitingForConnection)) {
 288             beginConnection();
 289         } else if (status.startsWith(unableToListen)) {
 290             //: Error message shown after 'Could not connect ... debugger:"
 291             errorMessage = tr("The port seems to be in use.");
 292         } else if (status.startsWith(debuggingNotEnabled) || status.startsWith(debuggingNotEnabled2)) {
 293             //: Error message shown after 'Could not connect ... debugger:"
 294             errorMessage = tr("The application is not set up for QML/JS debugging.");
 295         } else if (status.startsWith(connectionEstablished)) {
 296             // nothing to do
 297         } else {
 298             qWarning() << "Unknown QDeclarativeDebugServer status message: " << status;
 299         }
 300
 301         if (!errorMessage.isEmpty()) {
 302             notifyEngineRunFailed();
 303
 304             Core::ICore * const core = Core::ICore::instance();
 305             QMessageBox *infoBox = new QMessageBox(core->mainWindow());
 306             infoBox->setIcon(QMessageBox::Critical);
 307             infoBox->setWindowTitle(tr("Qt Creator"));
 308             //: %1 is detailed error message
 309             infoBox->setText(tr("Could not connect to the in-process QML debugger:\n%1")
 310                              .arg(errorMessage));
 311             infoBox->setStandardButtons(QMessageBox::Ok | QMessageBox::Help);
 312             infoBox->setDefaultButton(QMessageBox::Ok);
 313             infoBox->setModal(true);
 314
 315             connect(infoBox, SIGNAL(finished(int)),
 316                     this, SLOT(wrongSetupMessageBoxFinished(int)));
 317
 318             infoBox->show();
 319         }
 320     } else if (msg.contains(cannotRetrieveDebuggingOutput)) {
 321         // we won't get debugging output, so just try to connect ...
 322         beginConnection();
 323     }
 324 }
 325
 326 void QmlEngine::showMessage(const QString &msg, int channel, int timeout) const
 327 {
 328     if (channel == AppOutput || channel == AppError) {
 329         const_cast<QmlEngine*>(this)->filterApplicationMessage(msg, channel);
 330     }
 331     DebuggerEngine::showMessage(msg, channel, timeout);
 332 }
 333
 334 void QmlEngine::closeConnection()
 335 {
 336     disconnect(watchersModel(),SIGNAL(layoutChanged()),this,SLOT(synchronizeWatchers()));
 337     d->m_adapter.closeConnection();
 338 }
 339
 340 void QmlEngine::runEngine()
 341 {
 342     QTC_ASSERT(state() == EngineRunRequested, qDebug() << state());
 343
 344     if (!isSlaveEngine() && startParameters().startMode != AttachToRemoteServer
 345             && startParameters().startMode != AttachToQmlPort)
 346         startApplicationLauncher();
 347
 348     if (startParameters().startMode == AttachToQmlPort)
 349         beginConnection();
 350 }
 351
 352 void QmlEngine::startApplicationLauncher()
 353 {
 354     if (!d->m_applicationLauncher.isRunning()) {
 355         appendMessage(tr("Starting %1 %2").arg(
 356                           QDir::toNativeSeparators(startParameters().executable),
 357                           startParameters().processArgs)
 358                       + QLatin1Char('\n')
 359                      , Utils::NormalMessageFormat);
 360         d->m_applicationLauncher.start(ApplicationLauncher::Gui,
 361                                     startParameters().executable,
 362                                     startParameters().processArgs);
 363     }
 364 }
 365
 366 void QmlEngine::stopApplicationLauncher()
 367 {
 368     if (d->m_applicationLauncher.isRunning()) {
 369         disconnect(&d->m_applicationLauncher, SIGNAL(processExited(int)), this, SLOT(disconnected()));
 370         d->m_applicationLauncher.stop();
 371     }
 372 }
 373
 374 void QmlEngine::handleRemoteSetupDone(int gdbServerPort, int qmlPort)
 375 {
 376     Q_UNUSED(gdbServerPort);
 377     if (qmlPort != -1)
 378         startParameters().qmlServerPort = qmlPort;
 379     notifyInferiorSetupOk();
 380 }
 381
 382 void QmlEngine::handleRemoteSetupFailed(const QString &message)
 383 {
 384     QMessageBox::critical(0,tr("Failed to start application"),
 385         tr("Application startup failed: %1").arg(message));
 386     notifyInferiorSetupFailed();
 387 }
 388
 389 void QmlEngine::shutdownInferior()
 390 {
 391     d->m_noDebugOutputTimer.stop();
 392
 393     if (d->m_adapter.activeDebuggerClient())
 394         d->m_adapter.activeDebuggerClient()->endSession();
 395
 396     if (isSlaveEngine()) {
 397         resetLocation();
 398     }
 399     stopApplicationLauncher();
 400
 401     notifyInferiorShutdownOk();
 402 }
 403
 404 void QmlEngine::shutdownEngine()
 405 {
 406     closeConnection();
 407
 408     // double check (ill engine?):
 409     stopApplicationLauncher();
 410
 411     notifyEngineShutdownOk();
 412     if (!isSlaveEngine())
 413         showMessage(QString(), StatusBar);
 414 }
 415
 416 void QmlEngine::setupEngine()
 417 {
 418     connect(&d->m_applicationLauncher, SIGNAL(bringToForegroundRequested(qint64)),
 419             runControl(), SLOT(bringApplicationToForeground(qint64)),
 420             Qt::UniqueConnection);
 421
 422     notifyEngineSetupOk();
 423 }
 424
 425 void QmlEngine::continueInferior()
 426 {
 427     QTC_ASSERT(state() == InferiorStopOk, qDebug() << state());
 428     if (d->m_adapter.activeDebuggerClient()) {
 429         logMessage(LogSend, "CONTINUE");
 430         d->m_adapter.activeDebuggerClient()->continueInferior();
 431     }
 432     resetLocation();
 433     notifyInferiorRunRequested();
 434     notifyInferiorRunOk();
 435 }
 436
 437 void QmlEngine::interruptInferior()
 438 {
 439     if (d->m_adapter.activeDebuggerClient()) {
 440         logMessage(LogSend, "INTERRUPT");
 441         d->m_adapter.activeDebuggerClient()->interruptInferior();
 442     }
 443     notifyInferiorStopOk();
 444 }
 445
 446 void QmlEngine::executeStep()
 447 {
 448     if (d->m_adapter.activeDebuggerClient()) {
 449         logMessage(LogSend, "STEPINTO");
 450         d->m_adapter.activeDebuggerClient()->executeStep();
 451     }
 452     resetLocation();
 453     notifyInferiorRunRequested();
 454     notifyInferiorRunOk();
 455 }
 456
 457 void QmlEngine::executeStepI()
 458 {
 459     if (d->m_adapter.activeDebuggerClient()) {
 460         logMessage(LogSend, "STEPINTO");
 461         d->m_adapter.activeDebuggerClient()->executeStepI();
 462     }
 463     resetLocation();
 464     notifyInferiorRunRequested();
 465     notifyInferiorRunOk();
 466 }
 467
 468 void QmlEngine::executeStepOut()
 469 {
 470     if (d->m_adapter.activeDebuggerClient()) {
 471         logMessage(LogSend, "STEPOUT");
 472         d->m_adapter.activeDebuggerClient()->executeStepOut();
 473     }
 474     resetLocation();
 475     notifyInferiorRunRequested();
 476     notifyInferiorRunOk();
 477 }
 478
 479 void QmlEngine::executeNext()
 480 {
 481     if (d->m_adapter.activeDebuggerClient()) {
 482         logMessage(LogSend, "STEPOVER");
 483         d->m_adapter.activeDebuggerClient()->executeNext();
 484     }
 485     resetLocation();
 486     notifyInferiorRunRequested();
 487     notifyInferiorRunOk();
 488 }
 489
 490 void QmlEngine::executeNextI()
 491 {
 492     SDEBUG("QmlEngine::executeNextI()");
 493 }
 494
 495 void QmlEngine::executeRunToLine(const ContextData &data)
 496 {
 497     Q_UNUSED(data)
 498     SDEBUG("FIXME:  QmlEngine::executeRunToLine()");
 499 }
 500
 501 void QmlEngine::executeRunToFunction(const QString &functionName)
 502 {
 503     Q_UNUSED(functionName)
 504     XSDEBUG("FIXME:  QmlEngine::executeRunToFunction()");
 505 }
 506
 507 void QmlEngine::executeJumpToLine(const ContextData &data)
 508 {
 509     Q_UNUSED(data)
 510     XSDEBUG("FIXME:  QmlEngine::executeJumpToLine()");
 511 }
 512
 513 void QmlEngine::activateFrame(int index)
 514 {
 515     if (d->m_adapter.activeDebuggerClient()) {
 516         logMessage(LogSend, QString("%1 %2").arg(QString("ACTIVATE_FRAME"), QString::number(index)));
 517         d->m_adapter.activeDebuggerClient()->activateFrame(index);
 518     }
 519     gotoLocation(stackHandler()->frames().value(index));
 520 }
 521
 522 void QmlEngine::selectThread(int index)
 523 {
 524     Q_UNUSED(index)
 525 }
 526
 527 void QmlEngine::insertBreakpoint(BreakpointModelId id)
 528 {
 529     BreakHandler *handler = breakHandler();
 530     BreakpointState state = handler->state(id);
 531     QTC_ASSERT(state == BreakpointInsertRequested, qDebug() << id << this << state);
 532     handler->notifyBreakpointInsertProceeding(id);
 533
 534     if (d->m_adapter.activeDebuggerClient()) {
 535         d->m_adapter.activeDebuggerClient()->insertBreakpoint(id);
 536     } else {
 537         foreach (QmlDebuggerClient *client, d->m_adapter.debuggerClients()) {
 538             client->insertBreakpoint(id);
 539         }
 540     }
 541 }
 542
 543 void QmlEngine::removeBreakpoint(BreakpointModelId id)
 544 {
 545     BreakHandler *handler = breakHandler();
 546     BreakpointState state = handler->state(id);
 547     QTC_ASSERT(state == BreakpointRemoveRequested, qDebug() << id << this << state);
 548     handler->notifyBreakpointRemoveProceeding(id);
 549
 550     if (d->m_adapter.activeDebuggerClient()) {
 551         d->m_adapter.activeDebuggerClient()->removeBreakpoint(id);
 552     } else {
 553         foreach (QmlDebuggerClient *client, d->m_adapter.debuggerClients()) {
 554             client->removeBreakpoint(id);
 555         }
 556     }
 557
 558     if (handler->state(id) == BreakpointRemoveProceeding) {
 559         handler->notifyBreakpointRemoveOk(id);
 560     }
 561 }
 562
 563 void QmlEngine::changeBreakpoint(BreakpointModelId id)
 564 {
 565     BreakHandler *handler = breakHandler();
 566     BreakpointState state = handler->state(id);
 567     QTC_ASSERT(state == BreakpointChangeRequested, qDebug() << id << this << state);
 568     handler->notifyBreakpointChangeProceeding(id);
 569
 570     if (d->m_adapter.activeDebuggerClient()) {
 571         d->m_adapter.activeDebuggerClient()->changeBreakpoint(id);
 572     } else {
 573         foreach (QmlDebuggerClient *client, d->m_adapter.debuggerClients()) {
 574             client->changeBreakpoint(id);
 575         }
 576     }
 577
 578     if (handler->state(id) == BreakpointChangeProceeding) {
 579         handler->notifyBreakpointChangeOk(id);
 580     }
 581 }
 582
 583 void QmlEngine::attemptBreakpointSynchronization()
 584 {
 585     if (!stateAcceptsBreakpointChanges()) {
 586         showMessage(_("BREAKPOINT SYNCHRONIZATION NOT POSSIBLE IN CURRENT STATE"));
 587         return;
 588     }
 589
 590     BreakHandler *handler = breakHandler();
 591
 592     foreach (BreakpointModelId id, handler->unclaimedBreakpointIds()) {
 593         // Take ownership of the breakpoint. Requests insertion.
 594         if (acceptsBreakpoint(id))
 595             handler->setEngine(id, this);
 596     }
 597
 598     foreach (BreakpointModelId id, handler->engineBreakpointIds(this)) {
 599         switch (handler->state(id)) {
 600         case BreakpointNew:
 601             // Should not happen once claimed.
 602             QTC_CHECK(false);
 603             continue;
 604         case BreakpointInsertRequested:
 605             insertBreakpoint(id);
 606             continue;
 607         case BreakpointChangeRequested:
 608             changeBreakpoint(id);
 609             continue;
 610         case BreakpointRemoveRequested:
 611             removeBreakpoint(id);
 612             continue;
 613         case BreakpointChangeProceeding:
 614         case BreakpointInsertProceeding:
 615         case BreakpointRemoveProceeding:
 616         case BreakpointInserted:
 617         case BreakpointDead:
 618             continue;
 619         }
 620         QTC_ASSERT(false, qDebug() << "UNKNOWN STATE"  << id << state());
 621     }
 622
 623     DebuggerEngine::attemptBreakpointSynchronization();
 624
 625     if (d->m_adapter.activeDebuggerClient()) {
 626         d->m_adapter.activeDebuggerClient()->updateBreakpoints();
 627     } else {
 628         foreach (QmlDebuggerClient *client, d->m_adapter.debuggerClients()) {
 629             client->updateBreakpoints();
 630         }
 631     }
 632 }
 633
 634 bool QmlEngine::acceptsBreakpoint(BreakpointModelId id) const
 635 {
 636     if (!DebuggerEngine::isCppBreakpoint(breakHandler()->breakpointData(id)))
 637             return true;
 638
 639     //If it is a Cpp Breakpoint query if the type can be also handled by the debugger client
 640     //TODO: enable setting of breakpoints before start of debug session
 641     //For now, the event breakpoint can be set after the activeDebuggerClient is known
 642     //This is because the older client does not support BreakpointOnQmlSignalHandler
 643     bool acceptBreakpoint = false;
 644     if (d->m_adapter.activeDebuggerClient()) {
 645         acceptBreakpoint = d->m_adapter.activeDebuggerClient()->acceptsBreakpoint(id);
 646     }
 647     return acceptBreakpoint;
 648 }
 649
 650 void QmlEngine::loadSymbols(const QString &moduleName)
 651 {
 652     Q_UNUSED(moduleName)
 653 }
 654
 655 void QmlEngine::loadAllSymbols()
 656 {
 657 }
 658
 659 void QmlEngine::reloadModules()
 660 {
 661 }
 662
 663 void QmlEngine::requestModuleSymbols(const QString &moduleName)
 664 {
 665     Q_UNUSED(moduleName)
 666 }
 667
 668 //////////////////////////////////////////////////////////////////////
 669 //
 670 // Tooltip specific stuff
 671 //
 672 //////////////////////////////////////////////////////////////////////
 673
 674 bool QmlEngine::setToolTipExpression(const QPoint &mousePos,
 675     TextEditor::ITextEditor *editor, const DebuggerToolTipContext &ctx)
 676 {
 677     // This is processed by QML inspector, which has dependencies to
 678     // the qml js editor. Makes life easier.
 679     emit tooltipRequested(mousePos, editor, ctx.position);
 680     return true;
 681 }
 682
 683 //////////////////////////////////////////////////////////////////////
 684 //
 685 // Watch specific stuff
 686 //
 687 //////////////////////////////////////////////////////////////////////
 688
 689 void QmlEngine::assignValueInDebugger(const WatchData *data,
 690     const QString &expression, const QVariant &valueV)
 691 {
 692     quint64 objectId =  data->id;
 693     if (objectId > 0 && !expression.isEmpty() && d->m_adapter.activeDebuggerClient()) {
 694         logMessage(LogSend, QString("%1 %2 %3 %4 %5").arg(
 695                        QString("SET_PROPERTY"), QString::number(objectId), QString(expression),
 696                        valueV.toString()));
 697         d->m_adapter.activeDebuggerClient()->assignValueInDebugger(expression.toUtf8(), objectId, expression, valueV.toString());
 698     }
 699 }
 700
 701 void QmlEngine::updateWatchData(const WatchData &data,
 702     const WatchUpdateFlags &)
 703 {
 704 //    qDebug() << "UPDATE WATCH DATA" << data.toString();
 705     //watchHandler()->rebuildModel();
 706     showStatusMessage(tr("Stopped."), 5000);
 707
 708     if (!data.name.isEmpty() && d->m_adapter.activeDebuggerClient()) {
 709         if (data.isValueNeeded()) {
 710             logMessage(LogSend, QString("%1 %2 %3").arg(QString("EXEC"), QString(data.iname),
 711                                                         QString(data.name)));
 712             d->m_adapter.activeDebuggerClient()->updateWatchData(&data);
 713         }
 714         if (data.isChildrenNeeded()
 715                 && watchHandler()->isExpandedIName(data.iname)) {
 716             d->m_adapter.activeDebuggerClient()->expandObject(data.iname, data.id);
 717         }
 718     }
 719
 720     synchronizeWatchers();
 721
 722     if (!data.isSomethingNeeded())
 723         watchHandler()->insertData(data);
 724 }
 725
 726 void QmlEngine::synchronizeWatchers()
 727 {
 728     QStringList watchedExpressions = watchHandler()->watchedExpressions();
 729     // send watchers list
 730     logMessage(LogSend, QString("%1 %2").arg(
 731                    QString("WATCH_EXPRESSIONS"), watchedExpressions.join(", ")));
 732     if (d->m_adapter.activeDebuggerClient()) {
 733         d->m_adapter.activeDebuggerClient()->synchronizeWatchers(watchedExpressions);
 734     } else {
 735         foreach (QmlDebuggerClient *client, d->m_adapter.debuggerClients())
 736             client->synchronizeWatchers(watchedExpressions);
 737     }
 738 }
 739
 740 unsigned QmlEngine::debuggerCapabilities() const
 741 {
 742     return AddWatcherCapability|AddWatcherWhileRunningCapability;
 743     /*ReverseSteppingCapability | SnapshotCapability
 744         | AutoDerefPointersCapability | DisassemblerCapability
 745         | RegisterCapability | ShowMemoryCapability
 746         | JumpToLineCapability | ReloadModuleCapability
 747         | ReloadModuleSymbolsCapability | BreakOnThrowAndCatchCapability
 748         | ReturnFromFunctionCapability
 749         | CreateFullBacktraceCapability
 750         | WatchpointCapability
 751         | AddWatcherCapability;*/
 752 }
 753
 754 QString QmlEngine::toFileInProject(const QUrl &fileUrl)
 755 {
 756     if (startParameters().startMode != AttachToQmlPort) {
 757         if (d->fileFinder.projectDirectory().isEmpty()) {
 758             d->fileFinder.setProjectDirectory(startParameters().projectSourceDirectory);
 759             d->fileFinder.setProjectFiles(startParameters().projectSourceFiles);
 760         }
 761     }
 762
 763     return d->fileFinder.findFile(fileUrl);
 764 }
 765
 766 void QmlEngine::inferiorSpontaneousStop()
 767 {
 768     if (state() == InferiorRunOk)
 769         notifyInferiorSpontaneousStop();
 770 }
 771
 772 void QmlEngine::disconnected()
 773 {
 774     showMessage(tr("QML Debugger disconnected."), StatusBar);
 775     notifyInferiorExited();
 776 }
 777
 778 void QmlEngine::wrongSetupMessageBoxFinished(int result)
 779 {
 780     if (result == QMessageBox::Help) {
 781         Core::HelpManager *helpManager = Core::HelpManager::instance();
 782         helpManager->handleHelpRequest(
 783                     QLatin1String("qthelp://com.nokia.qtcreator/doc/creator-debugging-qml.html"));
 784     }
 785 }
 786
 787 void QmlEngine::executeDebuggerCommand(const QString& command)
 788 {
 789     if (d->m_adapter.activeDebuggerClient()) {
 790         logMessage(LogSend, QString("%1 %2 %3").arg(QString("EXEC"), QString("console"),
 791                                                           QString(command)));
 792         d->m_adapter.activeDebuggerClient()->executeDebuggerCommand(command);
 793     }
 794 }
 795
 796
 797 QString QmlEngine::qmlImportPath() const
 798 {
 799     return startParameters().environment.value("QML_IMPORT_PATH");
 800 }
 801
 802 void QmlEngine::logMessage(LogDirection direction, const QString &message)
 803 {
 804     QString msg = "QmlDebugger";
 805     if (direction == LogSend) {
 806         msg += " sending ";
 807     } else {
 808         msg += " receiving ";
 809     }
 810     msg += message;
 811     showMessage(msg, LogDebug);
 812 }
 813
 814 QmlEngine *createQmlEngine(const DebuggerStartParameters &sp,
 815     DebuggerEngine *masterEngine)
 816 {
 817     return new QmlEngine(sp, masterEngine);
 818 }
 819
 820 } // namespace Internal
 821 } // namespace Debugger
 822