author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 02 Feb 2010 00:43:10 +0200 | |
changeset 3 | 41300fa6a67c |
parent 0 | 1918ee327afb |
child 4 | 3b1da2848fc7 |
permissions | -rw-r--r-- |
0 | 1 |
/**************************************************************************** |
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** |
|
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** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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** All rights reserved. |
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** Contact: Nokia Corporation (qt-info@nokia.com) |
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** |
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** This file is part of the QtDBus module of the Qt Toolkit. |
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** |
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** $QT_BEGIN_LICENSE:LGPL$ |
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** No Commercial Usage |
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** This file contains pre-release code and may not be distributed. |
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** You may use this file in accordance with the terms and conditions |
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** contained in the Technology Preview License Agreement accompanying |
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** this package. |
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** |
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** GNU Lesser General Public License Usage |
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** Alternatively, this file may be used under the terms of the GNU Lesser |
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** General Public License version 2.1 as published by the Free Software |
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** Foundation and appearing in the file LICENSE.LGPL included in the |
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** packaging of this file. Please review the following information to |
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** ensure the GNU Lesser General Public License version 2.1 requirements |
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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** |
|
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** In addition, as a special exception, Nokia gives you certain additional |
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** rights. These rights are described in the Nokia Qt LGPL Exception |
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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** |
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** If you have questions regarding the use of this file, please contact |
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** Nokia at qt-info@nokia.com. |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** |
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** $QT_END_LICENSE$ |
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** |
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****************************************************************************/ |
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#include "qdbusconnection_p.h" |
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3
41300fa6a67c
Revision: 201003
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
0
diff
changeset
|
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#include "qdbus_symbols_p.h" |
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#include <QtCore/qcoreapplication.h> |
46 |
#include <QtCore/qmetaobject.h> |
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47 |
#include <QtCore/qstringlist.h> |
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48 |
#include <QtCore/qthread.h> |
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||
50 |
#include "qdbusabstractadaptor.h" |
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#include "qdbusabstractadaptor_p.h" |
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#include "qdbusconnection.h" |
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#include "qdbusextratypes.h" |
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#include "qdbusmessage.h" |
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#include "qdbusmetatype.h" |
|
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#include "qdbusmetatype_p.h" |
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#include "qdbusmessage_p.h" |
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#include "qdbusutil_p.h" |
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QT_BEGIN_NAMESPACE |
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// defined in qdbusxmlgenerator.cpp |
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extern QString qDBusGenerateMetaObjectXml(QString interface, const QMetaObject *mo, |
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const QMetaObject *base, int flags); |
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66 |
static const char introspectableInterfaceXml[] = |
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" <interface name=\"org.freedesktop.DBus.Introspectable\">\n" |
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" <method name=\"Introspect\">\n" |
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" <arg name=\"xml_data\" type=\"s\" direction=\"out\"/>\n" |
|
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" </method>\n" |
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" </interface>\n"; |
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static const char propertiesInterfaceXml[] = |
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" <interface name=\"org.freedesktop.DBus.Properties\">\n" |
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" <method name=\"Get\">\n" |
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" <arg name=\"interface_name\" type=\"s\" direction=\"in\"/>\n" |
|
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" <arg name=\"property_name\" type=\"s\" direction=\"in\"/>\n" |
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" <arg name=\"value\" type=\"v\" direction=\"out\"/>\n" |
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" </method>\n" |
|
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" <method name=\"Set\">\n" |
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" <arg name=\"interface_name\" type=\"s\" direction=\"in\"/>\n" |
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" <arg name=\"property_name\" type=\"s\" direction=\"in\"/>\n" |
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" <arg name=\"value\" type=\"v\" direction=\"in\"/>\n" |
|
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" </method>\n" |
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" <method name=\"GetAll\">\n" |
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" <arg name=\"interface_name\" type=\"s\" direction=\"in\"/>\n" |
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" <arg name=\"values\" type=\"a{sv}\" direction=\"out\"/>\n" |
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" <annotation name=\"com.trolltech.QtDBus.QtTypeName.Out0\" value=\"QVariantMap\"/>" |
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" </method>\n" |
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" </interface>\n"; |
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92 |
static QString generateSubObjectXml(QObject *object) |
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{ |
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QString retval; |
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const QObjectList &objs = object->children(); |
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QObjectList::ConstIterator it = objs.constBegin(); |
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QObjectList::ConstIterator end = objs.constEnd(); |
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for ( ; it != end; ++it) { |
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QString name = (*it)->objectName(); |
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if (!name.isEmpty() && QDBusUtil::isValidPartOfObjectPath(name)) |
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retval += QString::fromLatin1(" <node name=\"%1\"/>\n") |
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.arg(name); |
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} |
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return retval; |
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} |
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// declared as extern in qdbusconnection_p.h |
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QString qDBusIntrospectObject(const QDBusConnectionPrivate::ObjectTreeNode &node) |
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{ |
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// object may be null |
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QString xml_data(QLatin1String(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE)); |
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xml_data += QLatin1String("<node>\n"); |
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||
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if (node.obj) { |
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Q_ASSERT_X(QThread::currentThread() == node.obj->thread(), |
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"QDBusConnection: internal threading error", |
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"function called for an object that is in another thread!!"); |
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120 |
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if (node.flags & (QDBusConnection::ExportScriptableContents |
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| QDBusConnection::ExportNonScriptableContents)) { |
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// create XML for the object itself |
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const QMetaObject *mo = node.obj->metaObject(); |
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for ( ; mo != &QObject::staticMetaObject; mo = mo->superClass()) |
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xml_data += qDBusGenerateMetaObjectXml(QString(), mo, mo->superClass(), |
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node.flags); |
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} |
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// does this object have adaptors? |
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QDBusAdaptorConnector *connector; |
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if (node.flags & QDBusConnection::ExportAdaptors && |
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(connector = qDBusFindAdaptorConnector(node.obj))) { |
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// trasverse every adaptor in this object |
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QDBusAdaptorConnector::AdaptorMap::ConstIterator it = connector->adaptors.constBegin(); |
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QDBusAdaptorConnector::AdaptorMap::ConstIterator end = connector->adaptors.constEnd(); |
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for ( ; it != end; ++it) { |
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// add the interface: |
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QString ifaceXml = QDBusAbstractAdaptorPrivate::retrieveIntrospectionXml(it->adaptor); |
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if (ifaceXml.isEmpty()) { |
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// add the interface's contents: |
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ifaceXml += qDBusGenerateMetaObjectXml(QString::fromLatin1(it->interface), |
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it->adaptor->metaObject(), |
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&QDBusAbstractAdaptor::staticMetaObject, |
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QDBusConnection::ExportScriptableContents |
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| QDBusConnection::ExportNonScriptableContents); |
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QDBusAbstractAdaptorPrivate::saveIntrospectionXml(it->adaptor, ifaceXml); |
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} |
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xml_data += ifaceXml; |
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} |
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} |
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xml_data += QLatin1String( propertiesInterfaceXml ); |
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} |
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xml_data += QLatin1String( introspectableInterfaceXml ); |
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if (node.flags & QDBusConnection::ExportChildObjects) { |
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xml_data += generateSubObjectXml(node.obj); |
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} else { |
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// generate from the object tree |
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QDBusConnectionPrivate::ObjectTreeNode::DataList::ConstIterator it = |
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node.children.constBegin(); |
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QDBusConnectionPrivate::ObjectTreeNode::DataList::ConstIterator end = |
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node.children.constEnd(); |
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for ( ; it != end; ++it) |
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if (it->obj || !it->children.isEmpty()) |
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xml_data += QString::fromLatin1(" <node name=\"%1\"/>\n") |
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.arg(it->name); |
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} |
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xml_data += QLatin1String("</node>\n"); |
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return xml_data; |
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} |
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// implement the D-Bus interface org.freedesktop.DBus.Properties |
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static inline QDBusMessage interfaceNotFoundError(const QDBusMessage &msg, const QString &interface_name) |
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{ |
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return msg.createErrorReply(QDBusError::UnknownInterface, |
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QString::fromLatin1("Interface %1 was not found in object %2") |
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.arg(interface_name) |
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.arg(msg.path())); |
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} |
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static inline QDBusMessage |
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propertyNotFoundError(const QDBusMessage &msg, const QString &interface_name, const QByteArray &property_name) |
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{ |
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return msg.createErrorReply(QDBusError::InvalidArgs, |
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QString::fromLatin1("Property %1%2%3 was not found in object %4") |
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.arg(interface_name, |
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QString::fromLatin1(interface_name.isEmpty() ? "" : "."), |
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QString::fromLatin1(property_name), |
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msg.path())); |
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} |
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QDBusMessage qDBusPropertyGet(const QDBusConnectionPrivate::ObjectTreeNode &node, |
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const QDBusMessage &msg) |
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{ |
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Q_ASSERT(msg.arguments().count() == 2); |
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Q_ASSERT_X(!node.obj || QThread::currentThread() == node.obj->thread(), |
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"QDBusConnection: internal threading error", |
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"function called for an object that is in another thread!!"); |
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QString interface_name = msg.arguments().at(0).toString(); |
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QByteArray property_name = msg.arguments().at(1).toString().toUtf8(); |
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211 |
QDBusAdaptorConnector *connector; |
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QVariant value; |
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bool interfaceFound = false; |
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if (node.flags & QDBusConnection::ExportAdaptors && |
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(connector = qDBusFindAdaptorConnector(node.obj))) { |
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// find the class that implements interface_name or try until we've found the property |
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// in case of an empty interface |
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if (interface_name.isEmpty()) { |
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for (QDBusAdaptorConnector::AdaptorMap::ConstIterator it = connector->adaptors.constBegin(), |
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end = connector->adaptors.constEnd(); it != end; ++it) { |
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const QMetaObject *mo = it->adaptor->metaObject(); |
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int pidx = mo->indexOfProperty(property_name); |
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if (pidx != -1) { |
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value = mo->property(pidx).read(it->adaptor); |
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break; |
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} |
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} |
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} else { |
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QDBusAdaptorConnector::AdaptorMap::ConstIterator it; |
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it = qLowerBound(connector->adaptors.constBegin(), connector->adaptors.constEnd(), |
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interface_name); |
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if (it != connector->adaptors.constEnd() && interface_name == QLatin1String(it->interface)) { |
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interfaceFound = true; |
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value = it->adaptor->property(property_name); |
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} |
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} |
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} |
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240 |
if (!interfaceFound && !value.isValid() |
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&& node.flags & (QDBusConnection::ExportAllProperties | |
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QDBusConnection::ExportNonScriptableProperties)) { |
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// try the object itself |
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if (!interface_name.isEmpty()) |
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interfaceFound = qDBusInterfaceInObject(node.obj, interface_name); |
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||
247 |
if (interfaceFound) { |
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248 |
int pidx = node.obj->metaObject()->indexOfProperty(property_name); |
|
249 |
if (pidx != -1) { |
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250 |
QMetaProperty mp = node.obj->metaObject()->property(pidx); |
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251 |
if ((mp.isScriptable() && (node.flags & QDBusConnection::ExportScriptableProperties)) || |
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252 |
(!mp.isScriptable() && (node.flags & QDBusConnection::ExportNonScriptableProperties))) |
|
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value = mp.read(node.obj); |
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254 |
} |
|
255 |
} |
|
256 |
} |
|
257 |
||
258 |
if (!value.isValid()) { |
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259 |
// the property was not found |
|
260 |
if (!interfaceFound) |
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261 |
return interfaceNotFoundError(msg, interface_name); |
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262 |
return propertyNotFoundError(msg, interface_name, property_name); |
|
263 |
} |
|
264 |
||
265 |
return msg.createReply(qVariantFromValue(QDBusVariant(value))); |
|
266 |
} |
|
267 |
||
268 |
enum PropertyWriteResult { |
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269 |
PropertyWriteSuccess = 0, |
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PropertyNotFound, |
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271 |
PropertyTypeMismatch, |
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272 |
PropertyWriteFailed |
|
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}; |
|
274 |
||
275 |
static QDBusMessage propertyWriteReply(const QDBusMessage &msg, const QString &interface_name, |
|
276 |
const QByteArray &property_name, int status) |
|
277 |
{ |
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278 |
switch (status) { |
|
279 |
case PropertyNotFound: |
|
280 |
return propertyNotFoundError(msg, interface_name, property_name); |
|
281 |
case PropertyTypeMismatch: |
|
282 |
return msg.createErrorReply(QDBusError::InvalidArgs, |
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283 |
QString::fromLatin1("Invalid arguments for writing to property %1%2%3") |
|
284 |
.arg(interface_name, |
|
285 |
QString::fromLatin1(interface_name.isEmpty() ? "" : "."), |
|
286 |
QString::fromLatin1(property_name))); |
|
287 |
case PropertyWriteFailed: |
|
288 |
return msg.createErrorReply(QDBusError::InternalError, |
|
289 |
QString::fromLatin1("Internal error")); |
|
290 |
||
291 |
case PropertyWriteSuccess: |
|
292 |
return msg.createReply(); |
|
293 |
} |
|
294 |
Q_ASSERT_X(false, "", "Should not be reached"); |
|
295 |
return QDBusMessage(); |
|
296 |
} |
|
297 |
||
298 |
static int writeProperty(QObject *obj, const QByteArray &property_name, QVariant value, |
|
299 |
int propFlags = QDBusConnection::ExportAllProperties) |
|
300 |
{ |
|
301 |
const QMetaObject *mo = obj->metaObject(); |
|
302 |
int pidx = mo->indexOfProperty(property_name); |
|
303 |
if (pidx == -1) { |
|
304 |
// this object has no property by that name |
|
305 |
return PropertyNotFound; |
|
306 |
} |
|
307 |
||
308 |
QMetaProperty mp = mo->property(pidx); |
|
309 |
||
310 |
// check if this property is exported |
|
311 |
bool isScriptable = mp.isScriptable(); |
|
312 |
if (!(propFlags & QDBusConnection::ExportScriptableProperties) && isScriptable) |
|
313 |
return PropertyNotFound; |
|
314 |
if (!(propFlags & QDBusConnection::ExportNonScriptableProperties) && !isScriptable) |
|
315 |
return PropertyNotFound; |
|
316 |
||
317 |
// we found our property |
|
318 |
// do we have the right type? |
|
319 |
int id = mp.type(); |
|
320 |
if (id == QVariant::UserType) { |
|
321 |
// dynamic type |
|
322 |
id = qDBusNameToTypeId(mp.typeName()); |
|
323 |
if (id == -1) { |
|
324 |
// type not registered? |
|
325 |
qWarning("QDBusConnection: Unable to handle unregistered datatype '%s' for property '%s::%s'", |
|
326 |
mp.typeName(), mo->className(), property_name.constData()); |
|
327 |
return PropertyWriteFailed; |
|
328 |
} |
|
329 |
} |
|
330 |
||
331 |
if (id != 0xff && value.userType() == QDBusMetaTypeId::argument) { |
|
332 |
// we have to demarshall before writing |
|
333 |
void *null = 0; |
|
334 |
QVariant other(id, null); |
|
335 |
if (!QDBusMetaType::demarshall(qVariantValue<QDBusArgument>(value), id, other.data())) { |
|
336 |
qWarning("QDBusConnection: type `%s' (%d) is not registered with QtDBus. " |
|
337 |
"Use qDBusRegisterMetaType to register it", |
|
338 |
mp.typeName(), id); |
|
339 |
return PropertyWriteFailed; |
|
340 |
} |
|
341 |
||
342 |
value = other; |
|
343 |
} |
|
344 |
||
345 |
// the property type here should match |
|
346 |
return mp.write(obj, value) ? PropertyWriteSuccess : PropertyWriteFailed; |
|
347 |
} |
|
348 |
||
349 |
QDBusMessage qDBusPropertySet(const QDBusConnectionPrivate::ObjectTreeNode &node, |
|
350 |
const QDBusMessage &msg) |
|
351 |
{ |
|
352 |
Q_ASSERT(msg.arguments().count() == 3); |
|
353 |
Q_ASSERT_X(!node.obj || QThread::currentThread() == node.obj->thread(), |
|
354 |
"QDBusConnection: internal threading error", |
|
355 |
"function called for an object that is in another thread!!"); |
|
356 |
||
357 |
QString interface_name = msg.arguments().at(0).toString(); |
|
358 |
QByteArray property_name = msg.arguments().at(1).toString().toUtf8(); |
|
359 |
QVariant value = qvariant_cast<QDBusVariant>(msg.arguments().at(2)).variant(); |
|
360 |
||
361 |
QDBusAdaptorConnector *connector; |
|
362 |
if (node.flags & QDBusConnection::ExportAdaptors && |
|
363 |
(connector = qDBusFindAdaptorConnector(node.obj))) { |
|
364 |
||
365 |
// find the class that implements interface_name or try until we've found the property |
|
366 |
// in case of an empty interface |
|
367 |
if (interface_name.isEmpty()) { |
|
368 |
for (QDBusAdaptorConnector::AdaptorMap::ConstIterator it = connector->adaptors.constBegin(), |
|
369 |
end = connector->adaptors.constEnd(); it != end; ++it) { |
|
370 |
int status = writeProperty(it->adaptor, property_name, value); |
|
371 |
if (status == PropertyNotFound) |
|
372 |
continue; |
|
373 |
return propertyWriteReply(msg, interface_name, property_name, status); |
|
374 |
} |
|
375 |
} else { |
|
376 |
QDBusAdaptorConnector::AdaptorMap::ConstIterator it; |
|
377 |
it = qLowerBound(connector->adaptors.constBegin(), connector->adaptors.constEnd(), |
|
378 |
interface_name); |
|
379 |
if (it != connector->adaptors.end() && interface_name == QLatin1String(it->interface)) { |
|
380 |
return propertyWriteReply(msg, interface_name, property_name, |
|
381 |
writeProperty(it->adaptor, property_name, value)); |
|
382 |
} |
|
383 |
} |
|
384 |
} |
|
385 |
||
386 |
if (node.flags & (QDBusConnection::ExportScriptableProperties | |
|
387 |
QDBusConnection::ExportNonScriptableProperties)) { |
|
388 |
// try the object itself |
|
389 |
bool interfaceFound = true; |
|
390 |
if (!interface_name.isEmpty()) |
|
391 |
interfaceFound = qDBusInterfaceInObject(node.obj, interface_name); |
|
392 |
||
393 |
if (interfaceFound) { |
|
394 |
return propertyWriteReply(msg, interface_name, property_name, |
|
395 |
writeProperty(node.obj, property_name, value, node.flags)); |
|
396 |
} |
|
397 |
} |
|
398 |
||
399 |
// the property was not found |
|
400 |
if (!interface_name.isEmpty()) |
|
401 |
return interfaceNotFoundError(msg, interface_name); |
|
402 |
return propertyWriteReply(msg, interface_name, property_name, PropertyNotFound); |
|
403 |
} |
|
404 |
||
405 |
// unite two QVariantMaps, but don't generate duplicate keys |
|
406 |
static QVariantMap &operator+=(QVariantMap &lhs, const QVariantMap &rhs) |
|
407 |
{ |
|
408 |
QVariantMap::ConstIterator it = rhs.constBegin(), |
|
409 |
end = rhs.constEnd(); |
|
410 |
for ( ; it != end; ++it) |
|
411 |
lhs.insert(it.key(), it.value()); |
|
412 |
return lhs; |
|
413 |
} |
|
414 |
||
415 |
static QVariantMap readAllProperties(QObject *object, int flags) |
|
416 |
{ |
|
417 |
QVariantMap result; |
|
418 |
const QMetaObject *mo = object->metaObject(); |
|
419 |
||
420 |
// QObject has properties, so don't start from 0 |
|
421 |
for (int i = QObject::staticMetaObject.propertyCount(); i < mo->propertyCount(); ++i) { |
|
422 |
QMetaProperty mp = mo->property(i); |
|
423 |
||
424 |
// is it readable? |
|
425 |
if (!mp.isReadable()) |
|
426 |
continue; |
|
427 |
||
428 |
// is it a registered property? |
|
429 |
int typeId = qDBusNameToTypeId(mp.typeName()); |
|
430 |
if (!typeId) |
|
431 |
continue; |
|
432 |
const char *signature = QDBusMetaType::typeToSignature(typeId); |
|
433 |
if (!signature) |
|
434 |
continue; |
|
435 |
||
436 |
// is this property visible from the outside? |
|
437 |
if ((mp.isScriptable() && flags & QDBusConnection::ExportScriptableProperties) || |
|
438 |
(!mp.isScriptable() && flags & QDBusConnection::ExportNonScriptableProperties)) { |
|
439 |
// yes, it's visible |
|
440 |
QVariant value = mp.read(object); |
|
441 |
if (value.isValid()) |
|
442 |
result.insert(QString::fromLatin1(mp.name()), value); |
|
443 |
} |
|
444 |
} |
|
445 |
||
446 |
return result; |
|
447 |
} |
|
448 |
||
449 |
QDBusMessage qDBusPropertyGetAll(const QDBusConnectionPrivate::ObjectTreeNode &node, |
|
450 |
const QDBusMessage &msg) |
|
451 |
{ |
|
452 |
Q_ASSERT(msg.arguments().count() == 1); |
|
453 |
Q_ASSERT_X(!node.obj || QThread::currentThread() == node.obj->thread(), |
|
454 |
"QDBusConnection: internal threading error", |
|
455 |
"function called for an object that is in another thread!!"); |
|
456 |
||
457 |
QString interface_name = msg.arguments().at(0).toString(); |
|
458 |
||
459 |
bool interfaceFound = false; |
|
460 |
QVariantMap result; |
|
461 |
||
462 |
QDBusAdaptorConnector *connector; |
|
463 |
if (node.flags & QDBusConnection::ExportAdaptors && |
|
464 |
(connector = qDBusFindAdaptorConnector(node.obj))) { |
|
465 |
||
466 |
if (interface_name.isEmpty()) { |
|
467 |
// iterate over all interfaces |
|
468 |
for (QDBusAdaptorConnector::AdaptorMap::ConstIterator it = connector->adaptors.constBegin(), |
|
469 |
end = connector->adaptors.constEnd(); it != end; ++it) { |
|
470 |
result += readAllProperties(it->adaptor, QDBusConnection::ExportAllProperties); |
|
471 |
} |
|
472 |
} else { |
|
473 |
// find the class that implements interface_name |
|
474 |
QDBusAdaptorConnector::AdaptorMap::ConstIterator it; |
|
475 |
it = qLowerBound(connector->adaptors.constBegin(), connector->adaptors.constEnd(), |
|
476 |
interface_name); |
|
477 |
if (it != connector->adaptors.constEnd() && interface_name == QLatin1String(it->interface)) { |
|
478 |
interfaceFound = true; |
|
479 |
result = readAllProperties(it->adaptor, QDBusConnection::ExportAllProperties); |
|
480 |
} |
|
481 |
} |
|
482 |
} |
|
483 |
||
484 |
if (node.flags & QDBusConnection::ExportAllProperties && |
|
485 |
(!interfaceFound || interface_name.isEmpty())) { |
|
486 |
// try the object itself |
|
487 |
result += readAllProperties(node.obj, node.flags); |
|
488 |
interfaceFound = true; |
|
489 |
} |
|
490 |
||
491 |
if (!interfaceFound && !interface_name.isEmpty()) { |
|
492 |
// the interface was not found |
|
493 |
return interfaceNotFoundError(msg, interface_name); |
|
494 |
} |
|
495 |
||
496 |
return msg.createReply(qVariantFromValue(result)); |
|
497 |
} |
|
498 |
||
499 |
QT_END_NAMESPACE |