Add basic client/server debugging support

The canvas framerate monitor now uses this support.

1 files changed, 190 insertions, 0 deletions

diff --git a/src/declarative/debugger/qmldebugclient.cpp b/src/declarative/debugger/qmldebugclient.cpp
new file mode 100644
index 0000000..7a304ef
--- /dev/null
+++ b/src/declarative/debugger/qmldebugclient.cpp
@@ -0,0 +1,190 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qmldebugclient.h"
+#include <private/qtcpsocket_p.h>
+#include <QtDeclarative/qpacketprotocol.h>
+#include <QtCore/qdebug.h>
+#include <QtCore/qstringlist.h>
+
+QT_BEGIN_NAMESPACE
+
+class QmlDebugClientPrivate : public QObject
+{
+    Q_OBJECT
+public:
+    QmlDebugClientPrivate(QmlDebugClient *c);
+    QmlDebugClient *q;
+    QPacketProtocol *protocol;
+
+    QStringList enabled;
+    QHash<QString, QmlDebugClientPlugin *> plugins;
+public slots:
+    void connected();
+    void readyRead();
+};
+
+QmlDebugClientPrivate::QmlDebugClientPrivate(QmlDebugClient *c)
+: QObject(c), q(c), protocol(0)
+{
+    protocol = new QPacketProtocol(q, this);
+    QObject::connect(c, SIGNAL(connected()), this, SLOT(connected()));
+    QObject::connect(protocol, SIGNAL(readyRead()), this, SLOT(readyRead()));
+}
+
+void QmlDebugClientPrivate::connected()
+{
+    QPacket pack;
+    pack << QString(QLatin1String("QmlDebugServer")) << QStringList();
+    protocol->send(pack);
+}
+
+void QmlDebugClientPrivate::readyRead()
+{
+    QPacket pack = protocol->read();
+    QString name; QByteArray message;
+    pack >> name >> message;
+
+    QHash<QString, QmlDebugClientPlugin *>::Iterator iter = 
+        plugins.find(name);
+    if (iter == plugins.end()) {
+        qWarning() << "QmlDebugClient: Message received for missing plugin" << name;
+    } else {
+        (*iter)->messageReceived(message);
+    }
+}
+
+QmlDebugClient::QmlDebugClient(QObject *parent)
+: QTcpSocket(parent), d(new QmlDebugClientPrivate(this))
+{
+}
+
+class QmlDebugClientPluginPrivate : public QObjectPrivate
+{
+    Q_DECLARE_PUBLIC(QmlDebugClientPlugin);
+public:
+    QmlDebugClientPluginPrivate();
+
+    QString name;
+    QmlDebugClient *client;
+    bool enabled;
+};
+
+QmlDebugClientPluginPrivate::QmlDebugClientPluginPrivate()
+: client(0), enabled(false)
+{
+}
+
+QmlDebugClientPlugin::QmlDebugClientPlugin(const QString &name, 
+                                           QmlDebugClient *parent)
+: QObject(*(new QmlDebugClientPluginPrivate), parent)
+{
+    Q_D(QmlDebugClientPlugin);
+    d->name = name;
+    d->client = parent;
+
+    if (!d->client)
+        return;
+
+    if (d->client->d->plugins.contains(name)) {
+        qWarning() << "QmlDebugClientPlugin: Conflicting plugin name" << name;
+        d->client = 0;
+    } else {
+        d->client->d->plugins.insert(name, this);
+    }
+}
+
+QString QmlDebugClientPlugin::name() const
+{
+    Q_D(const QmlDebugClientPlugin);
+    return d->name;
+}
+
+bool QmlDebugClientPlugin::isEnabled() const
+{
+    Q_D(const QmlDebugClientPlugin);
+    return d->enabled;
+}
+
+void QmlDebugClientPlugin::setEnabled(bool e)
+{
+    Q_D(QmlDebugClientPlugin);
+    if (e == d->enabled)
+        return;
+
+    d->enabled = e;
+
+    if (d->client) {
+        if (e) 
+            d->client->d->enabled.append(d->name);
+        else
+            d->client->d->enabled.removeAll(d->name);
+
+        if (d->client->state() == QTcpSocket::ConnectedState) {
+            QPacket pack;
+            pack << QString(QLatin1String("QmlDebugServer"));
+            if (e) pack << (int)1;
+            else pack << (int)2;
+            pack << d->name;
+            d->client->d->protocol->send(pack);
+        }
+    }
+}
+
+void QmlDebugClientPlugin::sendMessage(const QByteArray &message)
+{
+    Q_D(QmlDebugClientPlugin);
+
+    if (!d->client || d->client->state() != QTcpSocket::ConnectedState)
+        return;
+
+    QPacket pack;
+    pack << d->name << message;
+    d->client->d_func()->protocol->send(pack);
+}
+
+void QmlDebugClientPlugin::messageReceived(const QByteArray &)
+{
+}
+
+#include "qmldebugclient.moc"
+
+QT_END_NAMESPACE