tdesktop/Telegram/SourceFiles/dialogs/dialogs_search_from_controllers.h

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org

Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

It 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 General Public License for more details.

In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.

Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#pragma once

#include "boxes/peer_list_box.h"
#include "profile/profile_channel_controllers.h"

namespace Dialogs {

void ShowSearchFromBox(PeerData *peer, base::lambda<void(gsl::not_null<UserData*>)> callback, base::lambda<void()> closedCallback);

class SearchFromBox : public PeerListBox {
public:
	using PeerListBox::PeerListBox;

	void setClosedCallback(base::lambda<void()> callback) {
		_closedCallback = std::move(callback);
	}

protected:
	void closeHook() override {
		if (_closedCallback) {
			_closedCallback();
		}
	}

private:
	base::lambda<void()> _closedCallback;

};

class ChatSearchFromController : public PeerListController, protected base::Subscriber {
public:
	ChatSearchFromController(gsl::not_null<ChatData*> chat, base::lambda<void(gsl::not_null<UserData*>)> callback);

	void prepare() override;
	void rowClicked(gsl::not_null<PeerListRow*> row) override;

private:
	void rebuildRows();
	void checkForEmptyRows();
	void appendRow(gsl::not_null<UserData*> user);

	gsl::not_null<ChatData*> _chat;
	base::lambda<void(gsl::not_null<UserData*>)> _callback;

};

class ChannelSearchFromController : public Profile::ParticipantsBoxController {
public:
	ChannelSearchFromController(gsl::not_null<ChannelData*> channel, base::lambda<void(gsl::not_null<UserData*>)> callback);

	void prepare() override;
	void rowClicked(gsl::not_null<PeerListRow*> row) override;

protected:
	std::unique_ptr<PeerListRow> createRow(gsl::not_null<UserData*> user) const override;

private:
	base::lambda<void(gsl::not_null<UserData*>)> _callback;

};

} // namespace Dialogs