/usr/include/telepathy-qt4/TelepathyQt/optional-interface-factory.h is in libtelepathy-qt4-dev 0.9.7-0ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 | /**
* This file is part of TelepathyQt
*
* @copyright Copyright (C) 2008-2009 Collabora Ltd. <http://www.collabora.co.uk/>
* @copyright Copyright (C) 2008-2009 Nokia Corporation
* @license LGPL 2.1
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _TelepathyQt_optional_interface_factory_h_HEADER_GUARD_
#define _TelepathyQt_optional_interface_factory_h_HEADER_GUARD_
#ifndef IN_TP_QT_HEADER
#error IN_TP_QT_HEADER
#endif
#include <TelepathyQt/Global>
#include <QObject>
#include <QStringList>
#include <QtGlobal>
namespace Tp
{
class AbstractInterface;
#ifndef DOXYGEN_SHOULD_SKIP_THIS
class TP_QT_EXPORT OptionalInterfaceCache
{
Q_DISABLE_COPY(OptionalInterfaceCache)
public:
explicit OptionalInterfaceCache(QObject *proxy);
~OptionalInterfaceCache();
protected:
AbstractInterface *getCached(const QString &name) const;
void cache(AbstractInterface *interface) const;
QObject *proxy() const;
private:
struct Private;
friend struct Private;
Private *mPriv;
};
#endif /* DOXYGEN_SHOULD_SKIP_THIS */
template <typename DBusProxySubclass> class OptionalInterfaceFactory
#ifndef DOXYGEN_SHOULD_SKIP_THIS
: private OptionalInterfaceCache
#endif
{
Q_DISABLE_COPY(OptionalInterfaceFactory)
public:
enum InterfaceSupportedChecking
{
CheckInterfaceSupported,
BypassInterfaceCheck
};
inline OptionalInterfaceFactory(DBusProxySubclass *this_)
: OptionalInterfaceCache(this_)
{
}
inline ~OptionalInterfaceFactory()
{
}
inline QStringList interfaces() const { return mInterfaces; }
inline bool hasInterface(const QString &name) const
{
return mInterfaces.contains(name);
}
template <class Interface>
inline Interface *optionalInterface(
InterfaceSupportedChecking check = CheckInterfaceSupported) const
{
// Check for the remote object supporting the interface
// Note that extra whitespace on "name" declaration is significant to avoid
// vexing-parse
QString name( (QLatin1String(Interface::staticInterfaceName())) );
if (check == CheckInterfaceSupported && !mInterfaces.contains(name)) {
return 0;
}
// If present or forced, delegate to OptionalInterfaceFactory
return interface<Interface>();
}
template <typename Interface>
inline Interface *interface() const
{
AbstractInterface* interfaceMustBeASubclassOfAbstractInterface = static_cast<Interface *>(NULL);
Q_UNUSED(interfaceMustBeASubclassOfAbstractInterface);
// If there is a interface cached already, return it
// Note that extra whitespace on "name" declaration is significant to avoid
// vexing-parse
QString name( (QLatin1String(Interface::staticInterfaceName())) );
AbstractInterface *cached = getCached(name);
if (cached)
return static_cast<Interface *>(cached);
// Otherwise, cache and return a newly constructed proxy
Interface *interface = new Interface(
static_cast<DBusProxySubclass *>(proxy()));
cache(interface);
return interface;
}
protected:
inline void setInterfaces(const QStringList &interfaces)
{
mInterfaces = interfaces;
}
private:
QStringList mInterfaces;
};
} // Tp
#endif
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