/*

* Copyright (c) 2006 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:  Class declarations of CMPXAddTracksDialog

*

*/

#ifndef C_CMPXADDTRACKSDIALOG_H

#define C_CMPXADDTRACKSDIALOG_H

// INCLUDES

#include <aknselectionlist.h>

#include <mpxcollectionobserver.h>

#include <mpxcollectionpath.h> // TMPXItemId

#include <mpxcollectionuihelper.h>

#include <mpxcollectionuihelperobserver.h>

// FORWARD DECLARATIONS

class CEikTextListBox;

class CAknTitlePane;

class CAknContextPane;

class CEikImage;

class CMPXLbxExtendedFeatures;

class CMPXAddTracksListModel;

class MMPXCollectionUtility;

class CMPXMediaArray;

class CMPXCommonUiHelper;

// CLASS DECLARATION

/**

 *  CMPXAddTracksDialog class

 *

 *  Dialog class for Playlist Add Tracks Mode

 */

NONSHARABLE_CLASS( CMPXAddTracksDialog ) : public CAknSelectionListDialog,

                                           public MMPXCollectionObserver,

                                           public MMPXCollectionFindObserver,

                                           public MMPXCHelperObserver

    {

public:

    enum TMPXAddTracksListItems

        {

        EMPXAddTracksAddAllSongs = 0,

        EMPXAddTracksAddArtistsBegin

        };

public: // Constructors and destructor

    /**

     * Two-phased constructor.

     * @return A pointer to a newly created object

     */

    IMPORT_C static CMPXAddTracksDialog* NewL();

    /**

     * Two-phased constructor.

     * @return A pointer to a newly created object

     */

    IMPORT_C static CMPXAddTracksDialog* NewLC();

    /**

     * C++ default destructor.

     */

    IMPORT_C virtual ~CMPXAddTracksDialog();

private:    // Constructors

    /**

     * C++ default constructor.

     */

    CMPXAddTracksDialog();

    /*

     *  Two phased constructor

     */

    void ConstructL( TInt aResource );

public: // From CAknSelectionListDialog

	void ProcessCommandL( TInt aCommandId );

private:     // New functions

    /**

     * Backup previous status pane to internal members.

     */

    void BackupPreviousStatusPaneL();

    /**

     * Restore previous status pane from internal members.

     */

    void RestorePreviousStatusPaneL();

    /**

     * Create context icon for add tracks dialog.

     */

    void CreateContextIconL();

    /**

     * Update softkey.

     */

    void UpdateSoftkeyL();

    /**

     * Update listbox content by category.

     *

     * @aMedia media array containing the categories

     */

    void UpdateListboxByCategoryL( const CMPXMedia& aMedia );

	/**

     * Update listbox content by category after find

     * @param aFind if find is activated

     * @param aSongNum found song number

     */

    void UpdateListboxByCategoryforFindL( TBool aFind, TInt aSongNum );

    /**

     * Gets current listbox item index.

     * @return Current listbox item index

     */

    TInt CurrentLbxItemIndex() const;

    /**

     * Return number of listbox items shown in the current listbox.

     * @return Visible items in the list box

     */

    TInt CurrentListItemCount() const;

    /**

     * When you change the list item array you should call this method.

     */

    void HandleItemArrayChangeL();

    /**

     * Highlight list item.

     * @param aIndex The index to be highlighted

     */

    void HighlightListItem( TInt aIndex );

    /**

     * Expand current group.

     */

    void ExpandCurrentGroupL();

    /**

     * Goto the closest group.

     */

    void GotoClosestGroupL();

    /**

     * Collapse current group.

     */

    void CollapseCurrentGroupL();

    /**

     * Add current track to playlist.

     */

    void AddCurrentTrackToPlaylistL();

    /**

     * Find support in artist category and all songs category.

     */

    void DoFindL( void );

    /**

     * Animation execution

     */

    void DoAnimL( void );

    /**

     * Animation call back method

     * @param aObject call back method

     */

    static TInt AnimExpireL( TAny* aObject );

    /**

     * Stop the Animation execution

     */

    /**

     * load resources.

     */

    void LoadResourceL();

    /**

     * Start find categories

     */

    void LoadCategoriesL();

    /**

     * Handle collection message

     *

     * @param aMessage collection message

     */

    void DoHandleCollectionMessageL( const CMPXMessage& aMessage );

     /**

     * Function called by CIdle to close the dialog itself when collection view

     * can not handle the closing of dialog due to waitnote displayed by

     * CMPXCollectionViewImp::DoIncrementalOpenL

     * 

     * @param aPtr pointer to this dialog itself

     */

    static TInt DeferredExitCallback( TAny* aPtr );

private:    // Functions from base classes

    /**

     * From MMPXCollectionObserver

     * Handle collection message.

     *

     * @param aMessage Collection message

     * @param aErr system error code.

     */

    void HandleCollectionMessage(

        CMPXMessage* aMessage, TInt aError );

    /**

     *  From MMPXCollectionObserver

     *  Handles the collection entries being opened. Typically called

     *  when client has Open()'d a folder

     *

     *  @param aEntries collection entries opened

     *  @param aIndex focused entry

     *  @param aComplete ETrue no more entries. EFalse more entries

     *                   expected

     *  @param aError error code

     */

    void HandleOpenL(

        const CMPXMedia& aEntries,

        TInt aIndex,

        TBool aComplete,

        TInt aError );

    /**

     *  From MMPXCollectionObserver

     *  Handles the collection entries being opened. Typically called

     *  when client has Open()'d an item. Client typically responds by

     *  'playing' the item

     *

     *  @param aPlaylist collection path to item

     *  @param aError error code

     */

    void HandleOpenL(

        const CMPXCollectionPlaylist& aPlaylist,

        TInt aError );

    /**

     *

     *  From MMPXCollectionObserver

     *  Handle media properties

     *

     *  @param aMedia media

     *  @param aError error code

     */

    void HandleCollectionMediaL(

        const CMPXMedia& aMedia,

        TInt aError );

    /**

     *  From MMPXCollectionFindObserver

     *  Handle callback for "find" operation

     *

     *  @param aEntries, CMPXMedia to be returned

     *  @param aComplete ETrue no more entries. EFalse more entries

     *                   expected

     *  @param aError error code

     */

    void HandleFindAllL(

        const CMPXMedia& aResults, TBool aComplete, TInt aError );

    /**

     * From MMPXCHelperObserver

     * Handles the completion of any collection helper event.

     *

     * @param aOperation, operation completed

     * @param aErr. the error code

     * @param aArgument Argument returned from the operation

     */

    void HandleOperationCompleteL( TCHelperOperation aOperation,

                                   TInt aError,

                                   void* aArgument );

    /**

     * From CEikDialog

     * Prepare for layout.

     */

    void PreLayoutDynInitL();

    /**

     * From CEikDialog

     * Check if it's ok to exit.

     * @param aButtonId Softkey Id

     * @return ETrue if it's ok to exit, otherwise, EFalse.

     */

    TBool OkToExitL( TInt aButtonId );

    /**

     * From CCoeControl, handles key-events.

     * @param aKeyEvent Key event.

     * @param aType Type of key event(EEventKey, EEventKeyUp or

     *              EEventKeyDown).

     * @return If key-event is consumed, EKeyWasConsumed. Else

     *         EKeyWasNotConsumed.

     */

    TKeyResponse OfferKeyEventL(

        const TKeyEvent& aKeyEvent,

        TEventCode aType );

    /**

     * From CoeControl.

     * Handles a change to the control's resources.

     *

     * @param aType A message UID value.

     */

    void HandleResourceChange( TInt aType );

    /**

     * From MEikListBoxObserver

     * Handles listbox events.

     *

     * @param aListBox Listbox where the event occurred.

     * @param aEventType Event type.

     */

     void HandleListBoxEventL(

        CEikListBox* aListBox,

        TListBoxEvent aEventType );

private:    // Data

    MMPXCollectionUtility*                  iCollectionUtility;  // not own

    MMPXCollectionUiHelper*                 iCollectionUiHelper;

    CMPXCommonUiHelper*                     iCommonUiHelper;

    CMPXMediaArray*                         iCategoryArray;

    CMPXMediaArray*                         iAllSongsArray;

    CAknContextPane*                        iContextPane;    // Not owned

    CAknTitlePane*                          iTitlePane;      // Not owned

    CEikTextListBox*                        iListBox;        // Not owned

    CAknListBoxFilterItems*                 iLbxFilterItems; // Not owned

    CEikImage*                              iOrigIcon;       // Original context icon

    CEikImage*                              iNewIcon;        // New context icon

    CPeriodic*                              iPeriodic; 	 	    // Animation timer

    CMPXLbxExtendedFeatures*                iLbxExtFeat;     // Speed scrolling

    CMPXAddTracksListModel*                 iListModel;      // Tracks list model

    HBufC*                                  iOrigTitle;      // Original title text

    HBufC*                                  iLastFindTxt;    // Last find text

    HBufC*                                  iNoSongText;

    HBufC*                                  iNoMatchText;

    RArray<TInt>                            iMatchedSongArray;

    RArray<TInt>                            iMatchedGroupArray;

    TMPXItemId                              iPlaylistId;

    TInt                                    iAnimIconIndex;

    TInt                                    iSelectIndex;

    TInt                                    iResourceOffset;  // must be freed

    TInt                                    iCurrentOp;

    TInt                                    iCurrentGroupIndex;

    TInt                                    iLastIndex;      // Not used but required by base class

    TBool                                   iSongAllGroupExist;

    TBool                                   iExpandAllSongs;

    TBool                                   iDoFind;

    CIdle*                                  iIdle;  // used to close dialog itself

    };

#endif  // C_CMPXADDTRACKSDIALOG_H

// End of File