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/*
 * Copyright (c) 2010 Kevin Smith
 * Licensed under the GNU General Public License v3.
 * See Documentation/Licenses/GPLv3.txt for more information.
 */

#ifndef SWIFTEN_CHATWINDOW_H
#define SWIFTEN_CHATWINDOW_H

#include <boost/optional.hpp>
#include "Swiften/Base/boost_bsignals.h"
#include <boost/shared_ptr.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#include <vector>

#include <string>
#include <Swiften/Elements/SecurityLabelsCatalog.h>
#include <Swiften/Elements/ChatState.h>
#include <Swiften/Elements/Form.h>


namespace Swift {
	class AvatarManager;
	class TreeWidget;
	class Roster;
	class TabComplete;
	class RosterItem;
	class ContactRosterItem;
	class FileTransferController;

	class ChatWindow {
		public:
			enum AckState {Pending, Received, Failed};
			enum Tristate {Yes, No, Maybe};
			enum OccupantAction {Kick};
			enum FileTransferState {WaitingForAccept, Negotiating, Transferring, Canceled, Finished, FTFailed};
			ChatWindow() {}
			virtual ~ChatWindow() {};

			/** Add message to window.
			 * @return id of added message (for acks).
			 */
			virtual std::string addMessage(const std::string& message, const std::string& senderName, bool senderIsSelf, boost::shared_ptr<SecurityLabel> label, const std::string& avatarPath, const boost::posix_time::ptime& time) = 0;
			/** Adds action to window.
			 * @return id of added message (for acks);
			 */
			virtual std::string addAction(const std::string& message, const std::string& senderName, bool senderIsSelf, boost::shared_ptr<SecurityLabel> label, const std::string& avatarPath, const boost::posix_time::ptime& time) = 0;
			virtual void addSystemMessage(const std::string& message) = 0;
			virtual void addPresenceMessage(const std::string& message) = 0;
			virtual void addErrorMessage(const std::string& message) = 0;
			virtual void replaceMessage(const std::string& message, const std::string& id, const boost::posix_time::ptime& time) = 0;
			
			// File transfer related stuff
			virtual std::string addFileTransfer(const std::string& senderName, bool senderIsSelf, const std::string& filename, const boost::uintmax_t sizeInBytes) = 0;
			virtual void setFileTransferProgress(std::string, const int percentageDone) = 0;
			virtual void setFileTransferStatus(std::string, const FileTransferState state, const std::string& msg = "") = 0;
			virtual void addMUCInvitation(const JID& jid, const std::string& reason, const std::string& password) = 0;

			virtual void setContactChatState(ChatState::ChatStateType state) = 0;
			virtual void setName(const std::string& name) = 0;
			virtual void show() = 0;
			virtual void activate() = 0;
			virtual void setAvailableSecurityLabels(const std::vector<SecurityLabelsCatalog::Item>& labels) = 0;
			virtual void setSecurityLabelsEnabled(bool enabled) = 0;
			virtual void setCorrectionEnabled(Tristate enabled) = 0;
			virtual void setUnreadMessageCount(int count) = 0;
			virtual void convertToMUC() = 0;
//			virtual TreeWidget *getTreeWidget() = 0;
			virtual void setSecurityLabelsError() = 0;
			virtual SecurityLabelsCatalog::Item getSelectedSecurityLabel() = 0;
			virtual void setInputEnabled(bool enabled) = 0;
			virtual void setRosterModel(Roster* model) = 0;
			virtual void setTabComplete(TabComplete* completer) = 0;
			virtual void replaceLastMessage(const std::string& message) = 0;
			virtual void setAckState(const std::string& id, AckState state) = 0;
			virtual void flash() = 0;
			virtual void setSubject(const std::string& subject) = 0;

			/**
			 * Set an alert on the window.
			 * @param alertText Description of alert (required).
			 * @param buttonText Button text to use (optional, no button is shown if empty).
			 */
			virtual void setAlert(const std::string& alertText, const std::string& buttonText = "") = 0;
			/**
			 * Removes an alert.
			 */
			virtual void cancelAlert() = 0;

			/**
			 * Actions that can be performed on the selected occupant.
			 */
			virtual void setAvailableOccupantActions(const std::vector<OccupantAction>& actions) = 0;

			/**
			 * A room configuration has been requested, show the form.
			 * If the form is cancelled, must emit onConfigurationFormCancelled().
			 */
			virtual void showRoomConfigurationForm(Form::ref) = 0;

			boost::signal<void ()> onClosed;
			boost::signal<void ()> onAllMessagesRead;
			boost::signal<void (const std::string&, bool isCorrection)> onSendMessageRequest;
			boost::signal<void ()> onSendCorrectionMessageRequest;
			boost::signal<void ()> onUserTyping;
			boost::signal<void ()> onUserCancelsTyping;
			boost::signal<void ()> onAlertButtonClicked;
			boost::signal<void (ContactRosterItem*)> onOccupantSelectionChanged;
			boost::signal<void (ChatWindow::OccupantAction, ContactRosterItem*)> onOccupantActionSelected;
			boost::signal<void (const std::string&)> onChangeSubjectRequest;
			boost::signal<void (Form::ref)> onConfigureRequest;
			boost::signal<void ()> onDestroyRequest;
			boost::signal<void (const JID&, const std::string& /*reason*/)> onInvitePersonToThisMUCRequest;
			boost::signal<void ()> onConfigurationFormCancelled;
			
			// File transfer related
			boost::signal<void (std::string /* id */)> onFileTransferCancel;
			boost::signal<void (std::string /* id */, std::string /* description */)> onFileTransferStart;
			boost::signal<void (std::string /* id */, std::string /* path */)> onFileTransferAccept;
			boost::signal<void (std::string /* path */)> onSendFileRequest;
	};
}
#endif