/*

 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 *

 * Contributors:

 *

 * Description: Helper class to monitor msg construction in unified editor

 *

 */

#ifndef MSG_UNIFIED_EDITOR_MONITOR_H

#define MSG_UNIFIED_EDITOR_MONITOR_H

#include <QObject>

#include "convergedmessage.h"

class MsgUnifiedEditorView;

class HbWidget;

class UniEditorGenUtils;

/**

 * Helper class to monitor message's contruction in unified editor.

 * This class is for only reading editor's content to run its logic.

 * This class is NOT a place for content editing inside editor.

 */

class MsgUnifiedEditorMonitor : public QObject

    {

    Q_OBJECT

public:

    /**

     * Constructor

     */

    MsgUnifiedEditorMonitor(QObject* parent=0);

    /**

     * Destructor

     */

    ~MsgUnifiedEditorMonitor();

    /**

     * Set to skip showing note for first time

     * @param skip true/false

     */

    inline void setSkipNote(bool skip = true);

    /**

     * Seeker method to access current message type

     */

    static inline ConvergedMessage::MessageType messageType();

    /**

     * seeker function to get current msg size in bytes

     */

    static inline int messageSize();

    /**

     * seeker function to get current msg's body size 

     * in bytes

     */

    static inline int bodySize();

    /**

     * seeker function to get current msg's attachment

     * container size in bytes

     */

    static inline int containerSize();

    /**

     * seeker function to get current msg's subject

     * size in bytes

     */

    static inline int subjectSize();

    /**

     * seeker function to get max possible mms size

     * in bytes

     */

    static inline int maxMmsSize();

    /**

     * seeker funtion to get max recipient count for sms

     */

    static inline int maxSmsRecipients();

    /**

     * seeker funtion to get max recipient count for mms

     */

    static inline int maxMmsRecipients();

    /**

     * get total address count in To, Cc & Bcc fields

     */

    static inline int msgAddressCount();

public slots:

    /**

     * slot to handle content change in any editor component

     */

    void handleContentChange();

signals:

    /**

     * Emitted when composed message can be sent.

     * @param enable true if send is possible else false.

     */

    void enableSend(bool enable);

private:

    /**

     * setter method to initialize content

     */

    void init();

    /**

     * Determine the projected msg type due to change in editor content

     */

    ConvergedMessage::MessageType projectedMsgType();

    /**

     * update various msg info changes during editing

     * @param senderWidget, Editor widget which triggered 

     * content change slot

     */

    void updateMsgInfo(HbWidget* senderWidget);

    /**

     * show type change discreet note

     */

    void showPopup(const QString& text);

    /**

     * accessor for view

     */

    MsgUnifiedEditorView* view();

    /**

     * check editor body for MMS content

     * @return true if MMS content is present

     */

    bool bodyHasMMSContent();

    /**

     * check editor subject for MMS content

     * @return true if MMS content is present

     */

    bool subjectHasMMSContent();

    /**

     * check editor attachment container for MMS content

     * @return true if MMS content is present

     */

    bool containerHasMMSContent();

    /**

     * check for other MMS content criteria

     * @return true if MMS criteria is met

     */

    bool otherMMSCriteriaMet();

    /**

     * Checks if composed message can be sent and emits a signal.

     */

    void updateSend();

private:

    /**

     * Flag to skip showing the type change popup.

     * Note need to be skipped when an mms is opened from draft.

     */

    bool mSkipNote;

    /**

     * Type of msg under composition in the editor 

     */

    static ConvergedMessage::MessageType mMessageType;

    /**

     * msg body size in bytes

     */

    static int mBodySize;

    /**

     * msg container size in bytes

     */

    static int mContainerSize;

    /**

     * msg subject size in bytes

     */

    static int mSubjectSize;

    /**

     * max mms size in bytes

     */

    static int mMaxMmsSize;

    /**

     * max recipient count in an sms

     */

    static int mMaxSmsRecipients;

    /**

     * max recipient count in an sms

     */

    static int mMaxMmsRecipients;

    /**

     * current msg address count (to + cc + bcc)

     */

    static int mMsgCurrAddressCount;

    /**

     * UniEditorGenUtils object

     * Owned

     */

    UniEditorGenUtils* mUniEditorGenUtils;

    };

#include "msgunieditormonitor.inl"

#endif //MSG_UNIFIED_EDITOR_MONITOR_H