emailuis/emailui/inc/FreestyleEmailUiMailListModel.h
changeset 0 8466d47a6819
child 10 f5907b1a1053
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/emailuis/emailui/inc/FreestyleEmailUiMailListModel.h	Thu Dec 17 08:39:21 2009 +0200
@@ -0,0 +1,171 @@
+/*
+* Copyright (c) 2007 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:  FreestyleEmailUi mail list model and model item definition.
+*
+*/
+
+
+#ifndef __FREESTYLEEMAILUI_MAILLISTMODEL_H__
+#define __FREESTYLEEMAILUI_MAILLISTMODEL_H__
+
+// SYSTEM INCLUDES
+#include <e32base.h>
+
+// INTERNAL INCLUDES
+#include "FreestyleEmailUiListModel.h"
+
+// FORWARD DECLARATIONS
+class CFreestyleEmailUiAppUi;
+class CFSMailMessage;
+
+enum TModelItemType
+	{
+	ETypeMailItem=0,
+	ETypeSeparator
+	};
+
+/**
+ * Mail list model item.
+ */
+class CFSEmailUiMailListModelItem : public CBase, public MFSListModelItem
+    {
+public:
+    static CFSEmailUiMailListModelItem* NewL( CFSMailMessage* aMessagePtr, TModelItemType aModelItemtype );
+    static CFSEmailUiMailListModelItem* NewLC( CFSMailMessage* aMessagePtr, TModelItemType aModelItemtype );
+    virtual ~CFSEmailUiMailListModelItem();
+
+private:
+    CFSEmailUiMailListModelItem::CFSEmailUiMailListModelItem( CFSMailMessage* aMessagePtr, TModelItemType aModelItemtype );
+public:
+    inline void SetMessagePtr( CFSMailMessage* aMessagePtr ) { iMessagePtr = aMessagePtr; }
+	inline CFSMailMessage& MessagePtr() { return *iMessagePtr; }
+	inline const CFSMailMessage& MessagePtr() const { return *iMessagePtr; }
+	inline TModelItemType ModelItemType() const { return iModelItemType; }
+	void SetSeparatorTextL( const TDesC& aSeparatorText );
+	inline HBufC* SeparatorText() { return iSeparatorText; }
+    inline const HBufC* SeparatorText() const { return iSeparatorText; }
+	inline void AddCorrespondingListId( TInt aFsTreeListId ) { iFsTreeListId = aFsTreeListId; }
+	inline TInt CorrespondingListId() const { return iFsTreeListId; }
+	
+private:
+	CFSMailMessage* iMessagePtr;   //!< ownded IFF item type is ETypeMailItem
+	TModelItemType iModelItemType;
+	HBufC* iSeparatorText;         //!< owned
+	TInt iFsTreeListId;
+  }; 
+ 
+
+/**
+ * Mail list model.
+ */
+class CFSEmailUiMailListModel : public CBase, public MFSEmailListModel
+  {
+public: // construction and destruction
+    
+    /** Two-phased constructor. */
+	static CFSEmailUiMailListModel* NewL( CFreestyleEmailUiAppUi* aAppUi, TBool aSearchList = EFalse );
+	/** Two-phased constructor. */
+	static CFSEmailUiMailListModel* NewLC( CFreestyleEmailUiAppUi* aAppUi, TBool aSearchList = EFalse );
+	/** Destructor. */
+	~CFSEmailUiMailListModel();
+
+public: // from base class MFSEmailListModel
+
+	void AppendL(MFSListModelItem* aItem);
+	void InsertL(MFSListModelItem* aItem, TInt aIndex);
+	void RemoveAndDestroy(TInt aIndex);
+	MFSListModelItem* Item(TInt aIndex);
+    const MFSListModelItem* Item(TInt aIndex) const;
+	TInt Count() const;
+
+public: // new methods
+	
+	CFreestyleEmailUiAppUi* AppUi();
+	
+	void SetSortCriteria( TFSMailSortCriteria aSortCriteria );
+	TFSMailSortCriteria SortCriteria();
+
+	void SortL();
+	
+	/**
+	 * Replaces the message pointer of the given item. Previous message is destroyed
+	 * if owned by the item. Also message pointer in the parent node is updated if
+	 * necessary.
+	 * @param  aIndex  Index of the item for which message pointer is replaced
+	 * @param  aNewPtr Pointer to the new message for the item. Ownership is transferred
+	 *                 if the updated item is a message item (not divider).
+	 */
+	void ReplaceMessagePtr( TInt aIndex, CFSMailMessage* aNewPtr );
+	
+	/**
+	 * Get index for item to be inserted in case the title dividers are not in use
+	 * @param  aMessageToInsert    The message which should be inserted
+	 * @param  aSortCriteria       The sorting criteria to be used in insertion
+	 * @return The index within the model for the new item.
+	 */
+    TInt GetInsertionPointL( const CFSEmailUiMailListModelItem& aItemToInsert ) const;
+    
+    /**
+     * Get index for item to be inserted in case the title dividers are in use.
+     * also gets the index of the parent node and place of the new item under its parent.
+     * @param  aMessageToInsert    The message which should be inserted
+     * @param  aSortCriteria       The sorting criteria to be used in insertion
+     * @param  aChildIdx           On return, contains index of the item to be inserted relative to its parent node.
+     * @param  aParentNodeIdx      On return, contains the index of the parent node within the model.
+     *                             KErrNotFound if a new node is needed for the item.
+     * @return The index within the model for the new item.
+     */ 
+	TInt GetInsertionPointL( const CFSEmailUiMailListModelItem& aItemToInsert, //!< input arg
+	                         TInt& aChildIdx,                                  //!< output arg
+	                         TInt& aParentNodeIdx ) const;                     //!< output arg
+
+	static TInt CompareModelItemsL( const CFSEmailUiMailListModelItem& aItem1,
+	                                const CFSEmailUiMailListModelItem& aItem2 );
+	
+	/**
+	 * Compares given messages using the given sorting mode. 
+	 * @return Positive value if aMessage1 is greater, negative value if aMessage1 is smaller, and 0 
+	 *         if the messages are equal.
+	 */
+	static TInt CompareMessagesL( const CFSMailMessage& aMessage1, 
+	                              const CFSMailMessage& aMessage2, 
+	                              TFSMailSortField aSortField );	    
+
+	static TBool MessagesBelongUnderSameSeparatorL( const CFSMailMessage& aMessage1, 
+	                                                const CFSMailMessage& aMessage2,
+	                                                TFSMailSortField aSortField );
+	
+	/**
+	 * Resets the data. Use this instead of deleting the model to avoid NULL
+	 * pointer checks.
+	 */
+    void Reset();
+
+protected: // construction
+    
+    // C++ constructor.
+	CFSEmailUiMailListModel( CFreestyleEmailUiAppUi* aAppUi );
+	// Second phase constructor.
+	void ConstructL( TBool aSearchList );
+
+private: // data
+
+    // Pointer to app ui. Not own.
+	CFreestyleEmailUiAppUi* iAppUi;
+  	RPointerArray<CFSEmailUiMailListModelItem> iItems;   
+  	TFSMailSortCriteria iSortCriteria;
+  };
+
+#endif //__FREESTYLEEMAILUI_MAILLISTMODEL_H__
+