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7 ** This file is part of the QtDeclarative module of the Qt Toolkit.
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22 ** GNU General Public License Usage
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42 #include "qdebugmessageservice_p.h"
43 #include "qdeclarativedebugservice_p_p.h"
47 Q_GLOBAL_STATIC(QDebugMessageService, declarativeDebugMessageService)
49 void DebugMessageHandler(QtMsgType type, const char *buf)
51 QDebugMessageService::instance()->sendDebugMessage(type, buf);
54 class QDebugMessageServicePrivate : public QDeclarativeDebugServicePrivate
57 QDebugMessageServicePrivate()
59 , prevStatus(QDeclarativeDebugService::NotConnected)
63 QtMsgHandler oldMsgHandler;
64 QDeclarativeDebugService::Status prevStatus;
67 QDebugMessageService::QDebugMessageService(QObject *parent) :
68 QDeclarativeDebugService(*(new QDebugMessageServicePrivate()),
69 QLatin1String("DebugMessages"), 2, parent)
71 Q_D(QDebugMessageService);
74 if (status() == Enabled) {
75 d->oldMsgHandler = qInstallMsgHandler(DebugMessageHandler);
76 d->prevStatus = Enabled;
80 QDebugMessageService *QDebugMessageService::instance()
82 return declarativeDebugMessageService();
85 void QDebugMessageService::sendDebugMessage(QtMsgType type, const char *buf)
87 Q_D(QDebugMessageService);
89 //We do not want to alter the message handling mechanism
90 //We just eavesdrop and forward the messages to a port
91 //only if a client is connected to it.
93 QDataStream ws(&message, QIODevice::WriteOnly);
94 ws << QByteArray("MESSAGE") << type << QString::fromLocal8Bit(buf).toUtf8();
98 (*d->oldMsgHandler)(type, buf);
101 void QDebugMessageService::statusChanged(Status status)
103 Q_D(QDebugMessageService);
105 if (status != Enabled && d->prevStatus == Enabled) {
106 QtMsgHandler handler = qInstallMsgHandler(d->oldMsgHandler);
107 // has our handler been overwritten in between?
108 if (handler != DebugMessageHandler)
109 qInstallMsgHandler(handler);
111 } else if (status == Enabled && d->prevStatus != Enabled) {
112 d->oldMsgHandler = qInstallMsgHandler(DebugMessageHandler);
116 d->prevStatus = status;