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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERFRAMEWORKOBSERVER_HXX
#define INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERFRAMEWORKOBSERVER_HXX

#include <com/sun/star/drawing/framework/XConfigurationChangeListener.hpp>
#include <com/sun/star/drawing/framework/XConfigurationController.hpp>
#include <cppuhelper/basemutex.hxx>
#include <cppuhelper/compbase.hxx>

#include <functional>

namespace sdext::presenter {

typedef ::cppu::WeakComponentImplHelper <
    css::drawing::framework::XConfigurationChangeListener
    > PresenterFrameworkObserverInterfaceBase;

/** Watch the drawing framework for changes and run callbacks when a certain
    change takes place.
*/
class PresenterFrameworkObserver
    : private ::cppu::BaseMutex,
      public PresenterFrameworkObserverInterfaceBase
{
public:
    typedef ::std::function<void (bool)> Action;

    PresenterFrameworkObserver(const PresenterFrameworkObserver&) = delete;
    PresenterFrameworkObserver& operator=(const PresenterFrameworkObserver&) = delete;

    static void RunOnUpdateEnd (
        const css::uno::Reference<css::drawing::framework::XConfigurationController>&rxController,
        const Action& rAction);

    virtual void SAL_CALL disposing() override;
    virtual void SAL_CALL disposing (const css::lang::EventObject& rEvent) override;
    virtual void SAL_CALL notifyConfigurationChange (
        const css::drawing::framework::ConfigurationChangeEvent& rEvent) override;

private:
    css::uno::Reference<css::drawing::framework::XConfigurationController> mxConfigurationController;
    Action maAction;

    /** Create a new PresenterFrameworkObserver object.
        @param rPredicate
            This functor tests whether the action is to be executed or not.
        @param rAction
            The functor to execute when the predicate returns true,
            e.g. when some resource has been created.
    */
    PresenterFrameworkObserver (
        const css::uno::Reference<css::drawing::framework::XConfigurationController>&rxController,
        const Action& rAction);
    virtual ~PresenterFrameworkObserver() override;

    void Shutdown();
};

}  // end of namespace ::sdext::presenter

#endif

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */