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87 lines
3.6 KiB
C++
87 lines
3.6 KiB
C++
/****************************************************************************
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* Copyright (C) 2015-2023 Savoir-faire Linux Inc. *
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* Author : Stepan Salenikovich <stepan.salenikovich@savoirfairelinux.com>*
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public *
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* License as published by the Free Software Foundation; either *
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* version 2.1 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
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* Lesser General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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***************************************************************************/
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#pragma once
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#include <typedefs.h>
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#include <memory>
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namespace Interfaces {
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class ContactMethodSelectorI;
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class DBusErrorHandlerI;
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class PixmapManipulatorI;
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class ShortcutCreatorI;
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} // namespace Interfaces
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/**
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* Use these functions to get and set the global instance of the implementation of each interface.
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*
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* The setter functions demand an std::unique_ptr because they become the object owners.
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*
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* Note that certain interfaces do not have a default implementation in LRC, in this case the getter
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* function will throw an exception if no instance has been set by the client.
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*/
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namespace GlobalInstances {
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/**
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* LRC does not provide a default implementation of this interface, thus an exception will be thrown
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* if this getter is called without an instance being set by the client
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*/
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Interfaces::DBusErrorHandlerI& dBusErrorHandler();
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void setDBusErrorHandler(std::unique_ptr<Interfaces::DBusErrorHandlerI> instance);
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/**
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* LRC does not provide a default implementation of this interface, thus an exception will be thrown
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* if this getter is called without an instance being set by the client
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*/
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LIB_EXPORT Interfaces::PixmapManipulatorI& pixmapManipulator();
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void LIB_EXPORT setPixmapManipulator(std::unique_ptr<Interfaces::PixmapManipulatorI> instance);
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LIB_EXPORT Interfaces::ShortcutCreatorI& shortcutCreator();
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void LIB_EXPORT setShortcutCreator(std::unique_ptr<Interfaces::ShortcutCreatorI> instance);
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// Private use only
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void setInterfaceInternal(Interfaces::ContactMethodSelectorI*);
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void setInterfaceInternal(Interfaces::DBusErrorHandlerI*);
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void setInterfaceInternal(Interfaces::PixmapManipulatorI*);
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void setInterfaceInternal(Interfaces::ShortcutCreatorI*);
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/**
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* Generic interface setter. This metamethod can set any type of interface
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* dynamically using variadic template, compile time type deduction and
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* the macro subsystem. Passing an invalid interface should trigger compile
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* time errors.
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*
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* The interface object is created internally and additional parameters
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* can be passed.
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*/
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template<class I, typename... Ts>
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void
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setInterface(Ts... args)
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{
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try {
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auto i = new I(args...);
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setInterfaceInternal(i);
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} catch (void* e) { // TODO define some kind of object for errors like this
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qDebug() << "Interface could not be set";
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}
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}
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} // namespace GlobalInstances
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