attachmentloadjob.h
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attachmentloadjob.h
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	/*
	SPDX-FileCopyrightText: 2009 Constantin Berzan <exit3219@gmail.com>

	SPDX-License-Identifier: LGPL-2.0-or-later
	*/

	#pragma once

	#include "attachmentpart.h"

	#include <KJob>

	namespace MessageCore
	{
	/**
	* @short A base class for jobs to load attachments from different sources.
	*
	* @author Constantin Berzan <exit3219@gmail.com>
	*/
	class AttachmentLoadJob : public KJob
	{
	Q_OBJECT

	public:
	/**
	* Creates a new attachment load job.
	*
	* @param parent The parent object.
	*/
	explicit AttachmentLoadJob(QObject *parent = nullptr);

	/**
	* Destroys the attachment load job.
	*/
	~AttachmentLoadJob() override;

	/**
	* Starts the attachment load job.
	*/
	void start() override;

	/**
	* Returns the loaded attachment.
	*/
	[[nodiscard]] AttachmentPart::Ptr attachmentPart() const;

	protected:
	/**
	* Subclasses use this method to set the loaded @p part.
	*/
	void setAttachmentPart(const AttachmentPart::Ptr &part);

	protected Q_SLOTS:
	virtual void doStart() = 0;

	private:
	//@cond PRIVATE
	class AttachmentLoadJobPrivate;
	std::unique_ptr<AttachmentLoadJobPrivate> const d;
	//@endcond
	};
	}