85 lines
3.0 KiB
C++
85 lines
3.0 KiB
C++
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#pragma once
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#include <vcl/abstdlg.hxx>
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#include <vcl/weld.hxx>
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#include <memory>
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#include <type_traits>
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namespace vcl
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{
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// Templated base class storing the dialog pointer, and implementing Execute, StartExecuteAsync,
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// and the shared constructor used by derived classes
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template <class Base, class Dialog, template <class...> class Ptr, bool Async>
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requires std::is_base_of_v<VclAbstractDialog, Base>&&
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std::is_base_of_v<weld::DialogController, Dialog> class AbstractDialogImpl_BASE : public Base
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{
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public:
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explicit AbstractDialogImpl_BASE(Ptr<Dialog> p)
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: m_pDlg(std::move(p))
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{
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}
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template <typename... Arg>
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requires std::is_constructible_v<Dialog, Arg...> explicit AbstractDialogImpl_BASE(Arg&&... arg)
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: m_pDlg(make_dialog(std::forward<Arg>(arg)...))
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{
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}
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short Execute() override { return m_pDlg->run(); }
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bool StartExecuteAsync(VclAbstractDialog::AsyncContext& rCtx) override
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{
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if constexpr (Async)
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return Dialog::runAsync(m_pDlg, rCtx.maEndDialogFn);
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else
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return Base::StartExecuteAsync(rCtx); // assert / fail
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}
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protected:
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Ptr<Dialog> m_pDlg;
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private:
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template <typename... Arg> static auto make_dialog(Arg&&... arg)
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{
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if constexpr (std::is_same_v<Ptr<void>, std::shared_ptr<void>>)
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return std::make_shared<Dialog>(std::forward<Arg>(arg)...);
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else
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return std::make_unique<Dialog>(std::forward<Arg>(arg)...);
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}
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};
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// Base for synchronously called dialogs, using unique_ptr
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template <class Base, class Dialog>
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using AbstractDialogImpl_Sync = AbstractDialogImpl_BASE<Base, Dialog, std::unique_ptr, false>;
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// Base for synchronously called dialogs, using shared_ptr
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template <class Base, class Dialog>
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using AbstractDialogImpl_Sync_Shared
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= AbstractDialogImpl_BASE<Base, Dialog, std::shared_ptr, false>;
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// Base for asynchronously called dialogs
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template <class Base, class Dialog>
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using AbstractDialogImpl_Async = AbstractDialogImpl_BASE<Base, Dialog, std::shared_ptr, true>;
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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