Unify parsing of application output in Debugger and Profiler

Change-Id: I8711f39aa44fea7d1a7091a27d77f5e73d5e4291
Reviewed-by: Aurindam Jana <aurindam.jana@nokia.com>

8 files changed, 252 insertions, 134 deletions

diff --git a/src/libs/qmljsdebugclient/qdeclarativeoutputparser.cpp b/src/libs/qmljsdebugclient/qdeclarativeoutputparser.cpp
new file mode 100644
index 0000000000..62da3037c2
--- /dev/null
+++ b/src/libs/qmljsdebugclient/qdeclarativeoutputparser.cpp
@@ -0,0 +1,93 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (info@qt.nokia.com)
+**
+** GNU Lesser General Public License Usage
+**
+** 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.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at info@qt.nokia.com.
+**
+**************************************************************************/
+
+#include "qdeclarativeoutputparser.h"
+#include "qmljsdebugclientconstants.h"
+
+namespace QmlJsDebugClient {
+
+QDeclarativeOutputParser::QDeclarativeOutputParser(QObject *parent)
+    : QObject(parent)
+{
+}
+
+void QDeclarativeOutputParser::setNoOutputText(const QString &text)
+{
+    m_noOutputText = text;
+}
+
+void QDeclarativeOutputParser::processOutput(const QString &output)
+{
+    m_buffer.append(output);
+
+    while (true) {
+        const int nlIndex = m_buffer.indexOf(QLatin1Char('\n'));
+        if (nlIndex < 0) // no further complete lines
+            break;
+
+        const QString msg = m_buffer.left(nlIndex);
+        m_buffer = m_buffer.right(m_buffer.size() - nlIndex - 1);
+
+        static const QString qddserver = QLatin1String("QDeclarativeDebugServer: ");
+
+        const int index = msg.indexOf(qddserver);
+        if (index != -1) {
+            QString status = msg;
+            status.remove(0, index + qddserver.length()); // chop of 'QDeclarativeDebugServer: '
+
+            static QString waitingForConnection = QLatin1String(Constants::STR_WAITING_FOR_CONNECTION);
+            static QString unableToListen = QLatin1String(Constants::STR_UNABLE_TO_LISTEN);
+            static QString debuggingNotEnabled = QLatin1String(Constants::STR_IGNORING_DEBUGGER);
+            static QString debuggingNotEnabled2 = QLatin1String(Constants::STR_IGNORING_DEBUGGER2);
+            static QString connectionEstablished = QLatin1String(Constants::STR_CONNECTION_ESTABLISHED);
+
+            if (status.startsWith(waitingForConnection)) {
+                emit waitingForConnectionMessage();
+            } else if (status.startsWith(unableToListen)) {
+                //: Error message shown after 'Could not connect ... debugger:"
+                emit errorMessage(tr("The port seems to be in use."));
+            } else if (status.startsWith(debuggingNotEnabled) || status.startsWith(debuggingNotEnabled2)) {
+                //: Error message shown after 'Could not connect ... debugger:"
+                emit errorMessage(tr("The application is not set up for QML/JS debugging."));
+            } else if (status.startsWith(connectionEstablished)) {
+                emit connectionEstablishedMessage();
+            } else {
+                emit unknownMessage(status);
+            }
+        } else if (msg.contains(m_noOutputText)) {
+            emit noOutputMessage();
+        }
+
+
+    }
+}
+
+} // namespace QmLJsDebugClient
diff --git a/src/libs/qmljsdebugclient/qdeclarativeoutputparser.h b/src/libs/qmljsdebugclient/qdeclarativeoutputparser.h
new file mode 100644
index 0000000000..7206faed1e
--- /dev/null
+++ b/src/libs/qmljsdebugclient/qdeclarativeoutputparser.h
@@ -0,0 +1,64 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (info@qt.nokia.com)
+**
+** GNU Lesser General Public License Usage
+**
+** 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.
+**
+** Other Usage
+**
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at info@qt.nokia.com.
+**
+**************************************************************************/
+
+#ifndef QDECLARATIVEOUTPUTPARSER_H
+#define QDECLARATIVEOUTPUTPARSER_H
+
+#include "qmljsdebugclient_global.h"
+
+#include <QtCore/QObject>
+
+namespace QmlJsDebugClient {
+
+class QMLJSDEBUGCLIENT_EXPORT QDeclarativeOutputParser : public QObject
+{
+    Q_OBJECT
+public:
+    QDeclarativeOutputParser(QObject *parent = 0);
+
+    void setNoOutputText(const QString &text);
+    void processOutput(const QString &output);
+
+signals:
+    void waitingForConnectionMessage();
+    void connectionEstablishedMessage();
+    void errorMessage(const QString &detailedError);
+    void unknownMessage(const QString &unknownMessage);
+    void noOutputMessage();
+
+private:
+    QString m_noOutputText;
+    QString m_buffer;
+};
+
+} // namespace QmLJsDebugClient
+
+#endif // QDECLARATIVEOUTPUTPARSER_H
diff --git a/src/libs/qmljsdebugclient/qmljsdebugclient-lib.pri b/src/libs/qmljsdebugclient/qmljsdebugclient-lib.pri
index 0a4391263a..a28e401e0b 100644
--- a/src/libs/qmljsdebugclient/qmljsdebugclient-lib.pri
+++ b/src/libs/qmljsdebugclient/qmljsdebugclient-lib.pri
@@ -7,23 +7,27 @@ contains(CONFIG, dll) {
 INCLUDEPATH += $$PWD/..
 
 HEADERS += \
-    $$PWD/qdeclarativeenginedebug.h \
-    $$PWD/qpacketprotocol.h \
     $$PWD/qdeclarativedebugclient.h \
+    $$PWD/qdeclarativeenginedebug.h \
+    $$PWD/qdeclarativeoutputparser.h \
     $$PWD/qmljsdebugclient_global.h \
-    $$PWD/qmlprofilertraceclient.h \
-    $$PWD/qmlprofilereventtypes.h \
     $$PWD/qmlprofilereventlist.h \
-    $$PWD/qv8profilerclient.h
+    $$PWD/qmlprofilereventtypes.h \
+    $$PWD/qmlprofilertraceclient.h \
+    $$PWD/qpacketprotocol.h \
+    $$PWD/qv8profilerclient.h \
+    qmljsdebugclientconstants.h
 
 SOURCES += \
-    $$PWD/qdeclarativeenginedebug.cpp \
-    $$PWD/qpacketprotocol.cpp \
     $$PWD/qdeclarativedebugclient.cpp \
-    $$PWD/qmlprofilertraceclient.cpp \
+    $$PWD/qdeclarativeenginedebug.cpp \
+    $$PWD/qdeclarativeoutputparser.cpp \
     $$PWD/qmlprofilereventlist.cpp \
+    $$PWD/qmlprofilertraceclient.cpp \
+    $$PWD/qpacketprotocol.cpp \
     $$PWD/qv8profilerclient.cpp
 
 OTHER_FILES += \
     $$PWD/qmljsdebugclient.pri \
     $$PWD/qmljsdebugclient-lib.pri
+
diff --git a/src/libs/qmljsdebugclient/qmljsdebugclientconstants.h b/src/libs/qmljsdebugclient/qmljsdebugclientconstants.h
new file mode 100644
index 0000000000..a8d7d81b25
--- /dev/null
+++ b/src/libs/qmljsdebugclient/qmljsdebugclientconstants.h
@@ -0,0 +1,16 @@
+#ifndef QMLJSDEBUGCLIENTCONSTANTS_H
+#define QMLJSDEBUGCLIENTCONSTANTS_H
+
+namespace QmlJsDebugClient {
+namespace Constants {
+
+const char STR_WAITING_FOR_CONNECTION[] = "Waiting for connection ";
+const char STR_UNABLE_TO_LISTEN[] = "Unable to listen ";
+const char STR_IGNORING_DEBUGGER[] = "Ignoring \"-qmljsdebugger=";
+const char STR_IGNORING_DEBUGGER2[] = "Ignoring\"-qmljsdebugger="; // There is (was?) a bug in one of the error strings - safest to handle both
+const char STR_CONNECTION_ESTABLISHED[] = "Connection established";
+
+} // namespace Constants
+} // namespace QmlJsDebugClient
+
+#endif // QMLJSDEBUGCLIENTCONSTANTS_H
diff --git a/src/plugins/debugger/qml/qmlengine.cpp b/src/plugins/debugger/qml/qmlengine.cpp
index 4fe48074f2..3193b9af3d 100644
--- a/src/plugins/debugger/qml/qmlengine.cpp
+++ b/src/plugins/debugger/qml/qmlengine.cpp
@@ -52,6 +52,7 @@
 
 #include <extensionsystem/pluginmanager.h>
 #include <projectexplorer/applicationlauncher.h>
+#include <qmljsdebugclient/qdeclarativeoutputparser.h>
 
 #include <utils/environment.h>
 #include <utils/qtcassert.h>
@@ -100,7 +101,7 @@ private:
     ApplicationLauncher m_applicationLauncher;
     Utils::FileInProjectFinder fileFinder;
     QTimer m_noDebugOutputTimer;
-    QString m_outputBuffer;
+    QmlJsDebugClient::QDeclarativeOutputParser m_outputParser;
 };
 
 QmlEnginePrivate::QmlEnginePrivate(QmlEngine *q)
@@ -145,6 +146,14 @@ QmlEngine::QmlEngine(const DebuggerStartParameters &startParameters,
             &d->m_noDebugOutputTimer,
             SLOT(start()));
 
+    d->m_outputParser.setNoOutputText(ApplicationLauncher::msgWinCannotRetrieveDebuggingOutput());
+    connect(&d->m_outputParser, SIGNAL(waitingForConnectionMessage()),
+            this, SLOT(beginConnection()));
+    connect(&d->m_outputParser, SIGNAL(noOutputMessage()),
+            this, SLOT(beginConnection()));
+    connect(&d->m_outputParser, SIGNAL(errorMessage(QString)),
+            this, SLOT(wrongSetupMessageBox(QString)));
+
     // Only wait 8 seconds for the 'Waiting for connection' on application ouput, then just try to connect
     // (application output might be redirected / blocked)
     d->m_noDebugOutputTimer.setSingleShot(true);
@@ -259,6 +268,28 @@ void QmlEngine::retryMessageBoxFinished(int result)
     }
 }
 
+void QmlEngine::wrongSetupMessageBox(const QString &errorMessage)
+{
+    d->m_noDebugOutputTimer.stop();
+    notifyEngineRunFailed();
+
+    Core::ICore * const core = Core::ICore::instance();
+    QMessageBox *infoBox = new QMessageBox(core->mainWindow());
+    infoBox->setIcon(QMessageBox::Critical);
+    infoBox->setWindowTitle(tr("Qt Creator"));
+    //: %1 is detailed error message
+    infoBox->setText(tr("Could not connect to the in-process QML debugger:\n%1")
+                     .arg(errorMessage));
+    infoBox->setStandardButtons(QMessageBox::Ok | QMessageBox::Help);
+    infoBox->setDefaultButton(QMessageBox::Ok);
+    infoBox->setModal(true);
+
+    connect(infoBox, SIGNAL(finished(int)),
+            this, SLOT(wrongSetupMessageBoxFinished(int)));
+
+    infoBox->show();
+}
+
 void QmlEngine::connectionError(QAbstractSocket::SocketError socketError)
 {
     if (socketError == QAbstractSocket::RemoteHostClosedError)
@@ -283,69 +314,7 @@ bool QmlEngine::canDisplayTooltip() const
 
 void QmlEngine::filterApplicationMessage(const QString &output, int /*channel*/)
 {
-    d->m_outputBuffer.append(output);
-    while (d->m_outputBuffer.contains(QLatin1Char('\n'))) {
-        const int nlIndex = d->m_outputBuffer.indexOf(QLatin1Char('\n'));
-        const QString msg = d->m_outputBuffer.left(nlIndex);
-
-        static const QString qddserver = QLatin1String("QDeclarativeDebugServer: ");
-        static const QString cannotRetrieveDebuggingOutput = ApplicationLauncher::msgWinCannotRetrieveDebuggingOutput();
-
-        const int index = msg.indexOf(qddserver);
-        if (index != -1) {
-            // we're actually getting debug output
-            d->m_noDebugOutputTimer.stop();
-
-            QString status = msg;
-            status.remove(0, index + qddserver.length()); // chop of 'QDeclarativeDebugServer: '
-
-            static QString waitingForConnection = QLatin1String("Waiting for connection ");
-            static QString unableToListen = QLatin1String("Unable to listen ");
-            static QString debuggingNotEnabled = QLatin1String("Ignoring \"-qmljsdebugger=");
-            static QString debuggingNotEnabled2 = QLatin1String("Ignoring\"-qmljsdebugger="); // There is (was?) a bug in one of the error strings - safest to handle both
-            static QString connectionEstablished = QLatin1String("Connection established");
-
-            QString errorMessage;
-            if (status.startsWith(waitingForConnection)) {
-                beginConnection();
-            } else if (status.startsWith(unableToListen)) {
-                //: Error message shown after 'Could not connect ... debugger:"
-                errorMessage = tr("The port seems to be in use.");
-            } else if (status.startsWith(debuggingNotEnabled) || status.startsWith(debuggingNotEnabled2)) {
-                //: Error message shown after 'Could not connect ... debugger:"
-                errorMessage = tr("The application is not set up for QML/JS debugging.");
-            } else if (status.startsWith(connectionEstablished)) {
-                // nothing to do
-            } else {
-                qWarning() << "Unknown QDeclarativeDebugServer status message: " << status;
-            }
-
-            if (!errorMessage.isEmpty()) {
-                notifyEngineRunFailed();
-
-                Core::ICore * const core = Core::ICore::instance();
-                QMessageBox *infoBox = new QMessageBox(core->mainWindow());
-                infoBox->setIcon(QMessageBox::Critical);
-                infoBox->setWindowTitle(tr("Qt Creator"));
-                //: %1 is detailed error message
-                infoBox->setText(tr("Could not connect to the in-process QML debugger:\n%1")
-                                 .arg(errorMessage));
-                infoBox->setStandardButtons(QMessageBox::Ok | QMessageBox::Help);
-                infoBox->setDefaultButton(QMessageBox::Ok);
-                infoBox->setModal(true);
-
-                connect(infoBox, SIGNAL(finished(int)),
-                        this, SLOT(wrongSetupMessageBoxFinished(int)));
-
-                infoBox->show();
-            }
-        } else if (msg.contains(cannotRetrieveDebuggingOutput)) {
-            // we won't get debugging output, so just try to connect ...
-            beginConnection();
-        }
-
-        d->m_outputBuffer = d->m_outputBuffer.right(d->m_outputBuffer.size() - nlIndex - 1);
-    }
+    d->m_outputParser.processOutput(output);
 }
 
 void QmlEngine::showMessage(const QString &msg, int channel, int timeout) const
diff --git a/src/plugins/debugger/qml/qmlengine.h b/src/plugins/debugger/qml/qmlengine.h
index 758087b69e..8100db025e 100644
--- a/src/plugins/debugger/qml/qmlengine.h
+++ b/src/plugins/debugger/qml/qmlengine.h
@@ -81,6 +81,7 @@ public slots:
 
 private slots:
     void retryMessageBoxFinished(int result);
+    void wrongSetupMessageBox(const QString &errorMessage);
     void wrongSetupMessageBoxFinished(int result);
 
 private:
diff --git a/src/plugins/qmlprofiler/qmlprofilerengine.cpp b/src/plugins/qmlprofiler/qmlprofilerengine.cpp
index 91e40c0900..62d109ea25 100644
--- a/src/plugins/qmlprofiler/qmlprofilerengine.cpp
+++ b/src/plugins/qmlprofiler/qmlprofilerengine.cpp
@@ -51,6 +51,7 @@
 #include <projectexplorer/applicationrunconfiguration.h>
 #include <qt4projectmanager/qt-s60/s60devicedebugruncontrol.h>
 #include <qt4projectmanager/qt-s60/s60devicerunconfiguration.h>
+#include <qmljsdebugclient/qdeclarativeoutputparser.h>
 
 #include <QtGui/QMainWindow>
 #include <QtGui/QMessageBox>
@@ -85,6 +86,7 @@ public:
     bool m_fetchDataFromStart;
     bool m_delayedDelete;
     QTimer m_noDebugOutputTimer;
+    QmlJsDebugClient::QDeclarativeOutputParser m_outputParser;
 };
 
 AbstractQmlProfilerRunner *
@@ -146,6 +148,14 @@ QmlProfilerEngine::QmlProfilerEngine(IAnalyzerTool *tool,
     d->m_noDebugOutputTimer.setSingleShot(true);
     d->m_noDebugOutputTimer.setInterval(4000);
     connect(&d->m_noDebugOutputTimer, SIGNAL(timeout()), this, SLOT(processIsRunning()));
+
+    d->m_outputParser.setNoOutputText(ApplicationLauncher::msgWinCannotRetrieveDebuggingOutput());
+    connect(&d->m_outputParser, SIGNAL(waitingForConnectionMessage()),
+            this, SLOT(processIsRunning()));
+    connect(&d->m_outputParser, SIGNAL(noOutputMessage()),
+            this, SLOT(processIsRunning()));
+    connect(&d->m_outputParser, SIGNAL(errorMessage(QString)),
+            this, SLOT(wrongSetupMessageBox(QString)));
 }
 
 QmlProfilerEngine::~QmlProfilerEngine()
@@ -259,72 +269,33 @@ void QmlProfilerEngine::finishProcess()
     }
 }
 
-void QmlProfilerEngine::filterApplicationMessage(const QString &msg)
+void QmlProfilerEngine::logApplicationMessage(const QString &msg, Utils::OutputFormat format)
 {
-    static const QString qddserver = QLatin1String("QDeclarativeDebugServer: ");
-    static const QString cannotRetrieveDebuggingOutput = ProjectExplorer::ApplicationLauncher::msgWinCannotRetrieveDebuggingOutput();
-
-    const int index = msg.indexOf(qddserver);
-    if (index != -1) {
-        // we're actually getting debug output
-        d->m_noDebugOutputTimer.stop();
-
-        QString status = msg;
-        status.remove(0, index + qddserver.length()); // chop of 'QDeclarativeDebugServer: '
-
-        static QString waitingForConnection = QLatin1String("Waiting for connection ");
-        static QString unableToListen = QLatin1String("Unable to listen ");
-        static QString debuggingNotEnabled = QLatin1String("Ignoring \"-qmljsdebugger=");
-        static QString debuggingNotEnabled2 = QLatin1String("Ignoring\"-qmljsdebugger="); // There is (was?) a bug in one of the error strings - safest to handle both
-        static QString connectionEstablished = QLatin1String("Connection established");
-
-        QString errorMessage;
-        if (status.startsWith(waitingForConnection)) {
-            processIsRunning();
-        } else if (status.startsWith(unableToListen)) {
-            //: Error message shown after 'Could not connect ... debugger:"
-            errorMessage = tr("The port seems to be in use.");
-        } else if (status.startsWith(debuggingNotEnabled) || status.startsWith(debuggingNotEnabled2)) {
-            //: Error message shown after 'Could not connect ... debugger:"
-            errorMessage = tr("The application is not set up for QML/JS debugging.");
-        } else if (status.startsWith(connectionEstablished)) {
-            // nothing to do
-        } else {
-            qWarning() << "Unknown QDeclarativeDebugServer status message: " << status;
-        }
-
-        if (!errorMessage.isEmpty()) {
-            Core::ICore * const core = Core::ICore::instance();
-            QMessageBox *infoBox = new QMessageBox(core->mainWindow());
-            infoBox->setIcon(QMessageBox::Critical);
-            infoBox->setWindowTitle(tr("Qt Creator"));
-            //: %1 is detailed error message
-            infoBox->setText(tr("Could not connect to the in-process QML debugger:\n%1")
-                             .arg(errorMessage));
-            infoBox->setStandardButtons(QMessageBox::Ok | QMessageBox::Help);
-            infoBox->setDefaultButton(QMessageBox::Ok);
-            infoBox->setModal(true);
-
-            connect(infoBox, SIGNAL(finished(int)),
-                    this, SLOT(wrongSetupMessageBoxFinished(int)));
-
-            infoBox->show();
-
-            d->m_running = false;
-            AnalyzerManager::stopTool();
-            emit finished();
-        }
-    } else if (msg.contains(cannotRetrieveDebuggingOutput)) {
-        // we won't get debugging output, so just try to connect ...
-        processIsRunning();
-    }
+    emit outputReceived(msg, format);
+    d->m_outputParser.processOutput(msg);
 }
 
-void QmlProfilerEngine::logApplicationMessage(const QString &msg, Utils::OutputFormat format)
+void QmlProfilerEngine::wrongSetupMessageBox(const QString &errorMessage)
 {
-    emit outputReceived(msg, format);
+    Core::ICore * const core = Core::ICore::instance();
+    QMessageBox *infoBox = new QMessageBox(core->mainWindow());
+    infoBox->setIcon(QMessageBox::Critical);
+    infoBox->setWindowTitle(tr("Qt Creator"));
+    //: %1 is detailed error message
+    infoBox->setText(tr("Could not connect to the in-process QML debugger:\n%1")
+                     .arg(errorMessage));
+    infoBox->setStandardButtons(QMessageBox::Ok | QMessageBox::Help);
+    infoBox->setDefaultButton(QMessageBox::Ok);
+    infoBox->setModal(true);
 
-    filterApplicationMessage(msg);
+    connect(infoBox, SIGNAL(finished(int)),
+            this, SLOT(wrongSetupMessageBoxFinished(int)));
+
+    infoBox->show();
+
+    d->m_running = false;
+    AnalyzerManager::stopTool();
+    emit finished();
 }
 
 void QmlProfilerEngine::wrongSetupMessageBoxFinished(int button)
diff --git a/src/plugins/qmlprofiler/qmlprofilerengine.h b/src/plugins/qmlprofiler/qmlprofilerengine.h
index 21567c5f73..01742ab246 100644
--- a/src/plugins/qmlprofiler/qmlprofilerengine.h
+++ b/src/plugins/qmlprofiler/qmlprofilerengine.h
@@ -65,7 +65,7 @@ private slots:
     void dataReceived();
     void finishProcess();
     void logApplicationMessage(const QString &msg, Utils::OutputFormat format);
-    void filterApplicationMessage(const QString &msg);
+    void wrongSetupMessageBox(const QString &errorMessage);
     void wrongSetupMessageBoxFinished(int);
     void processIsRunning();