/*

 * 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:Message chat View for the messaging application.

 *

 */

#ifndef MSG_CONVERSATION_VIEW_H

#define MSG_CONVERSATION_VIEW_H

// INCLUDES

#include "msgbaseview.h"

#include "convergedmessage.h"

//Forward declarations

class HbListView;

class HbAbstractViewItem;

class MsgSendUtil;

class QStandardItemModel;

class MsgEditorWidget;

class MsgContactCardWidget;

class MsgConversationViewItem;

class HbStaticVkbHost;

class QGraphicsLinearLayout;

//Defines

#define INVALID_MSG_ID -1

/**

 * This class provides the message chat view for the messaging application.

 * Data source for this view is the conversation model.

 */

class MsgConversationView : public MsgBaseView

{

Q_OBJECT

public:

    /**

     * Constructor

     */

    MsgConversationView(MsgContactCardWidget *contactCardWidget,

        QGraphicsItem *parent = 0);

    /**

     * Destructor

     */

    ~MsgConversationView();

    /**

     * Clear editors

     * clear message and address editors

     */

    void clearEditors();

    /**

     * Save the content inside editor to drafts

     * @return true if save is success else false.

     */

    bool saveContentToDrafts();

private slots:

    /**

     * Slot is called when menu is about to be shown.

     * Populates the menu with relevant actions.

     */

    void menuAboutToShow();

private:

    /**

     * View initialization function.

     */

    void setupView();

    /**

     * Setup view menu items.

     */

    void setupMenu();

    /**

     * Populates ConvergedMessage for sending.

     * @param ConvergedMessage to be populated

     * @see ConvergedMessage::MessageType

     */

    void populateForSending(ConvergedMessage &message);

    /**

     * Adds context menu entries to context menu

     * @param HbMenu context menu

     * @param int sendingstate.

     * @see ConvergedMessage::MessageType

     */

    void setContextMenu(MsgConversationViewItem* item, HbMenu* contextMenu, int sendingState);

    /**

     * Adds context menu entry to context menu for Opening items

	 * @param MsgConversationViewItem* item whose information is needed.

     * @param HbMenu context menu

     * @param int sendingstate.

     * @see ConvergedMessage::MessageType

     */

    void addOpenItemToContextMenu(MsgConversationViewItem* item, HbMenu* contextMenu, int sendingState);

    /**

     * Adds context menu entry to context menu for Resending items

     * @param MsgConversationViewItem* item whose information is needed.

     * @param HbMenu context menu

     * @param int sendingstate.

     * @see ConvergedMessage::MessageType

     */  

    void addResendItemToContextMenu(MsgConversationViewItem* item, HbMenu* contextMenu, int sendingState);

    /**

     * Adds context menu entry to context menu for Forwarding items

	 * @param MsgConversationViewItem* item whose information is needed.

     * @param HbMenu context menu

     * @param int sendingstate.

     * @see ConvergedMessage::MessageType

     */

    void addForwardItemToContextMenu(MsgConversationViewItem* item, HbMenu* contextMenu, int sendingState);

    /**

     * Adds context menu entry to context menu for Deleting items

	 * @param MsgConversationViewItem* item whose information is needed.

     * @param HbMenu context menu

     * @param int sendingstate.

     * @see ConvergedMessage::MessageType

     */

    void addDeleteItemToContextMenu(MsgConversationViewItem* item, HbMenu* contextMenu, int sendingState);

    /**

     * Adds context menu entry to context menu for Downloading items

     * @param MsgConversationViewItem* item whose information is needed.

     * @param HbMenu context menu    

     * @see ConvergedMessage::MessageType

     */

    void addDownloadItemToContextMenu(MsgConversationViewItem* item, HbMenu* contextMenu);

    /**

     * Validates if message can be forwarded

     * @param messageType

     * @param messageId

     * @return true if message can be forwarded

     *         false if message cant be forwarded

     */

    bool validateMsgForForward(int &messageType,qint32 &messageId);

    /**

     * Launches the BT message display service.

     * @param index Index of the item activated/touched

     */

    void launchBtDisplayService(const QModelIndex & index);

public slots:

    /**

     * Refreshes all widgets in the conversation view according to latest model

     * data

     */

    void refreshView();

private slots:

    /**

     * Utility method to scroll the list to show the bottom most item

     */

    void scrollToBottom();

    /**

     * Handler for long tap of a list item.

     * @param viewItem  Long tapped view item

     * @param point X and Y co-ordinates of long tap

     */

    void longPressed(HbAbstractViewItem* viewItem, const QPointF& point);

    /**

     * Handler for short tap/direct touch of a list item.

     * @param index index of the item activated/touched

     */

    void openItem(const QModelIndex & index);

    /**

     * Sends the message

     */

    void send();

    // ----------------------------- View Specific Menu Slots--------------------//

    /**

     * Fetch images 

     */

    void fetchImages();

    /**

     * Fectch conatcts

     */

    void fetchContacts();

    /**

     * Fectch audio

     */

    void fetchAudio();

    /*

     * Get the photos and launch editor

     */

    void imagesFetched(const QVariant& result );

    /**

     * slot to receive fetched contacts for addition

     */

    void contactsFetched(const QVariant& value);

    /*

     * Get audio files from audio-fetcher and launch editor

     */

    void audiosFetched(const QVariant& result );

    /**

     * slot to receive fetched contacts for vcard addition

     */

    void contactsFetchedForVCards(const QVariant& value);

    /*

     * Adds subject file to editor.

     */

    void addSubject();

    //----------------------Item Specific menu slots ---------------------//

    /**

     * Forwards the message

     */

    void forwardMessage();

    /**

     * Deletes the item

     */

    void deleteItem();

    /**

     * Resends the item. This is only valid in the failed message case.

     */

    void resendMessage();

    /**

     * Download the specified message

     */

    void downloadMessage();

    /**

     * Open the item

     */

    void openItem();

    /**

     * Set model to the view 

     */    

    void populateConversationsView();

    /**

     * Save ringing tone

     */

    void saveRingingTone();   

    /**

     * Launch Editor since sms character limit reached

     */

    void handleSmsCharLimitReached();   

signals:

    /**

     * Signal emitted to inform close the conversation view.

     * When Conversation view has opened in send mode, after sending

     * the message, this signal is emitted.

     */

    void closeConversationView();

    /**

     * Emitted when editor is tapped to reply.

     */

    void replyStarted();

	/**

	* This signal is emitted when vkb is open.

	*/

    void hideChrome(bool);

private slots:

    /**

     * Resizes the view when VKB is opened.

     * This slot is triggered when user taps on the CV editor

     */

    void vkbOpened();

    /**

     * Resizes the view when VKB is closed.

     * This slot is triggered when VKB focus is lost.

     */

    void vkbClosed();

private:

    /**

     * launch editor when attachment is inserted

     * @params data used for launching editor with pre-populated content

     */

    void launchUniEditor(const QVariantList& data);

    /**

     * Signal emitted when an error is generated.

     * @param errorCode Error code.

     * @param errorMessage Error description.

     */

    void serviceRequestError(int errorCode, const QString& errorMessage);

    /**

     * Activate Input Blocker

     */

    void activateInputBlocker();

    /**

     * Deactivate Input Blocker

     */

    void deactivateInputBlocker();

private:

    /**

     * List to hold the conversations

     * Owned

     */

    HbListView *mConversationList;

    /**

     * Model to facilitate filtering and sorting

     * Owned

     */

    QStandardItemModel *mMessageModel;

    /**

     * Instance of messaged editor widget.

     */

    MsgEditorWidget *mEditorWidget;

    /**

     * Instance of Contact Card widget.

     */

    MsgContactCardWidget* mContactCardWidget;

    /**

     * Send utils instance

     */

    MsgSendUtil *mSendUtil;

    /**

     * Instance of the main layout.

     */

    QGraphicsLinearLayout *mMainLayout;

	/**

	 * Flag to track if item has been long pressed.

	 */

    bool mItemLongPressed;

    /*

     * Instance of VKB 

     */

    HbStaticVkbHost* mVkbHost;

    /**

     * Flag to check it vkb is open.

     */

    bool mVkbopened;

};

#endif // MSG_CONVERSATION_VIEW_H

// EOF