PECengine/IncPresenceModel/MPEngContactList2.h
changeset 0 094583676ce7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PECengine/IncPresenceModel/MPEngContactList2.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,395 @@
+/*
+* Copyright (c) 2004 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:  Contact list model interface & related definitions.
+*
+*/
+
+#ifndef __MPENGCONTACTLIST2_H__
+#define __MPENGCONTACTLIST2_H__
+
+
+//  INCLUDES
+#include <E32Std.h>
+#include <BaDescA.h>
+#include <MPEngContactItem.h>
+
+
+
+// DATA TYPES
+
+
+/**
+ * Contact list sub views.
+ *
+ * @since 3.0
+ */
+enum TPEngContactListView
+    {
+    /**
+     * Contact list as it presented in the storage of the PEC engine
+     * This contact list contains also changes which has been
+     * done on the contact list, but haven't been yet commited to the
+     * Network server, therefore network version of the contact
+     * list can vary till the next update call.
+     * NOTE!
+     * Local and Network contact list are identical once
+     * Contact list is not editable
+     */
+    EPEngCntListLocalView = 1,
+
+    /**
+     * Contact list as it exists on network server
+     * This is version of the contact list, as it was last time
+     * updated to the Network Server.
+     * Content is mostly same as EPEngCntListLocalVersion, unless
+     * there have been dome some changes on the contact list
+     * and client haven't updated them yet to the network.
+     * NOTE!
+     * Local and Network contact list are identical once
+     * Contact list is not editable
+     */
+    EPEngCntListNetworkView = 2,
+
+    /**
+     * Contacts which were removed from the contact list.
+     * Those contact have been removed from the contact list
+     * within last update of the contact list to the network.
+     * Contact can be removed on demand of the Client, or network
+     * server can refuse contact item when it is tried to be added
+     * Contact are also removed when contact list update transaction
+     * fails for what ever reason.
+     * NOTE!
+     * Removed Contact are not defined for not editable contact lists
+     */
+    EPEngRemovedContacts = 3,
+
+    /**
+     * Contacts which were added to the contact.
+     * Those contact have been added to the contact list
+     * within last update of the contact list to the network.
+     * Contact can be added on demand of the Client, or network
+     * server can also merge two contact into one, if they are same
+     * and it failed to be recognized by the client. For intance
+     * lack of knowledge of the Domain name.
+     * NOTE!
+     * Added Contact are not defined for not editable contact lists
+     */
+    EPEngAddedContacts = 4
+    };
+
+// CONSTANTS
+
+/**
+ *	Special case of the contact list created by the Server
+ *	Content of the contact list is set of users subscribing
+ *	presence of the loged user.
+ *	Watcher List does not have to be available always, depends on
+ *	the server user is logged in.
+ */
+_LIT( KPEngWatcherList, "watcherlist" );
+
+
+// FORWARD DECLARATIONS
+class MPEngContactListProperties;
+
+
+
+
+
+// CLASS DECLARATION
+/**
+ * General API for different contact lists.
+ *
+ * Interface allows users to manipulate and retrieve
+ * data from the contact list.
+ *
+ * @since 3.0
+ */
+class MPEngContactList2
+    {
+
+    public: // Mutators
+
+        /**
+         * Inserts a Contact into the Contact list.
+         *
+         * Each Contact can exist only once in the contact list.
+         * If added contact already exists in the contact list, function
+         * Leaves with KErrAlready exists.
+         * If Contact List nick name needs to be changed for contact,
+         * MPEngContactItem.h interface should be used instead.
+         * This function can also fail if some other client
+         * is already editing content of this contact list.
+         *
+         * Function leaves with KErrNoMemory, if there is insufficient
+         * memory available to perform operation.
+         *
+         * If the function leaves, the Contact list is left in the state
+         * it was before
+         *
+         * !NOTE!
+         * This function is not available for Non-Editable contact lists.
+         *
+         * @since 3.0
+         *
+         * @param aContact Contact to be added to the contact list
+         * @param aNickName nick name for the contact
+         *			If nick name is not passed, no nick name is defined
+         *			for the contact, same as KNullDesC value.
+         * @return The position within the contact list.
+         */
+        virtual TInt AddContactL( const TDesC& aContact,
+                                  const TDesC& aNickName = KNullDesC ) = 0;
+
+        /**
+         * Removes Contact from the Contact list
+         *
+         * If contact does not exists in the contact list, function
+         * does nothing.
+         *
+         * Function leaves with KErrNoMemory, if there is insufficient
+         * memory available to perform operation.
+         *
+         * If the function leaves, the Contact list is left in the state
+         * it was before
+         *
+         * !NOTE!
+         * This function is not available for Non-Editable contact lists.
+         *
+         * @since 3.0
+         *
+         * @param aContact The contact to be removed from the Contact list
+         */
+        virtual void RemoveContactL( const TDesC& aContact ) = 0;
+
+
+
+        /**
+         * Find Contact in the contact list
+         *
+         * Finds Contact in defined contact list.
+         * Search is performed with the comparison sense to
+         * Contact specifics and also smart domain comparison is employed
+         * if home domain is known to the system.
+         * By default search is performed on the Local contact list view
+         *
+         * !NOTE!
+         * Not all views are available for Non-Editable contact lists
+         *
+         * @since 3.0
+         *
+         * @param aContact contact to look for
+         * @param aView Contact list view to look for Contact in, by default
+         *              Local contact list view is used
+         * @return position
+         */
+        virtual TInt FindContact(
+            const TDesC& aContact,
+            TPEngContactListView aView
+            = EPEngCntListLocalView ) const = 0;
+
+
+
+        /**
+         * Count of the Contacts of the Contact list view
+         *
+         * Returns count of the contact IDs on the defined Contact List
+         * view.
+         * By default Local List view is used
+         *
+         * !NOTE!
+         * Not all views are available for Non-Editable contact lists
+         *
+         * @since 3.0
+         * @param aView Contact list view to get count for, by default
+         *              Local contact list view is used
+         * @return Count of the Contact of the list
+         */
+        virtual TInt Count( TPEngContactListView aView
+                            = EPEngCntListLocalView ) const = 0;
+
+
+        /**
+         * Contact Item of the Contact list
+         *
+         * Gets reference to the particular contact item model
+         * of the contact list. This model can be used to view contact
+         * item details and modify them.
+         * Both const and non const overload available.
+         *
+         * There is no difference if contact item model was retrieved
+         * from Network or local view as far as contact item exists in
+         * both views.
+         *
+         * !NOTE!
+         * Contact Item can be retrieved only for Local and network
+         * Contact list view. Since there are not details
+         * available for Removed and Added contacts, except contact part,
+         * also editing of those lists is not allowed at any case.
+         * More about contact item model services can be seen in
+         * MPEngContactItem.h
+         *
+         * @since 3.0
+         * @param aIndex index of desired contact Item within list
+         * @param aSublist sublist of the contact list
+         * @return reference to contact Item model
+         */
+        virtual MPEngContactItem& ContactItem(
+            TInt aIndex,
+            TPEngContactListView aView
+            = EPEngCntListLocalView ) = 0;
+
+        virtual const MPEngContactItem& ContactItem(
+            TInt aIndex,
+            TPEngContactListView aView
+            = EPEngCntListLocalView ) const = 0;
+
+
+        /**
+         * Contacts which were removed from the contact list
+         *
+         * List of the contact's WV Ids which were removed form the contact
+         * list, either on the clients demand or by the Network server
+         * Contacts can be also removed once update operation fails
+         *
+         * @since 3.0
+         * @return des array with removed contacts
+         */
+        virtual const MDesCArray& RemovedContacts( ) const = 0;
+
+
+        /**
+         * Contacts which were added to the contact list
+         *
+         * List of the contact's WV Ids which were added to the contact
+         * list, either on the clients demand or by the Network server.
+         *
+         * @since 3.0
+         * @return des array with added contacts
+         */
+        virtual const MDesCArray& AddedContacts( ) const = 0;
+
+
+
+    public: // Contact List properties
+
+        /**
+         * Contact list Settings
+         *
+         * Returns contact list properties model.
+         * This model can be used to view contact list
+         * details and also to edit certain parameters of the
+         * contact list which are allowed to be altered once
+         * contact list exists.
+         *
+         * @since 3.0
+         * @return Contact list properties model
+         */
+        virtual MPEngContactListProperties& ListProperties() = 0;
+
+
+
+
+    public: // Functions for storage management
+
+        /**
+         * Remove all contacts from the contact list
+         *
+         * Cleans contact list from all Contacts
+         *
+         * @since 3.0
+         */
+        virtual void RemoveAllContactsL( ) = 0;
+
+
+        /**
+         * Suspend contact list update notifications
+         *
+         * This should be used when client is intending to do lot
+         * of small changes of the contact list content and wants
+         * them to be notified to other clients all at once once
+         * editing is finished.
+         * Suspending is removed by calling ReleaseUpdateNotification()
+         *
+         * @since 3.0
+         */
+        virtual void SuspendUpdateNotification( ) = 0;
+
+
+        /**
+         * Release sending of the contact list update notifications
+         *
+         * Update notifications are released and also all notifications
+         * which were ignored when suspend was active are now notified
+         *
+         * @since 3.0
+         */
+        virtual void ReleaseUpdateNotification( ) = 0;
+
+
+        /**
+         * Roll back all changes
+         *
+         * All un-commited changes are rolled back and
+         * contact list is put in the state it exist on the network.
+         * This will roll back changes of the Contact Item edition
+         * and also Contact List Network related changes
+         *
+         * @since 3.0
+         * @return KErrNone if store of the roll back state was successful
+         * system wide error if storing failed
+         */
+        virtual TInt RollBackAllChangesL( ) = 0;
+
+
+        /**
+         * Contact list locked by other client
+         *
+         * Returns ETrue if contact list has been locked by another
+         * client for editing of its content
+         *
+         * @since 3.0
+         * @return ETrue if Contact List is locked
+         */
+        virtual TBool UpdateInProgress( ) const = 0;
+
+
+        /**
+         *  Update of the contact list required
+         *
+         *	Returns ETrue if contact list needs to be upated
+         *
+         *  @since 3.0
+         *  @return ETrue if update is needed. EFalse if not.
+         */
+        virtual TBool UpdateRequired() const = 0;
+
+
+
+    protected:  //Destructor
+
+        /**
+         * Virtual inline destructor.
+         * Protected destructor to prohibits deletion trough interface.
+         */
+        virtual ~MPEngContactList2() {};
+    };
+
+
+#endif      //  __MPENGCONTACTLIST2_H__
+
+//  End of File
+
+
+