author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 17 Dec 2009 08:45:44 +0200 | |
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child 17 | a60acebbbd9d |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: MPX Command generating Command Handler |
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* |
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*/ |
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#ifndef __C_GLXMPXCOMMANDCOMMANDHANDLER_H__ |
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#define __C_GLXMPXCOMMANDCOMMANDHANDLER_H__ |
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#include <AknProgressDialog.h> |
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#include <e32base.h> |
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#include <mpxcommand.h> |
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#include <mpxmessage.h> |
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#include "glxmedialistcommandhandler.h" |
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class MGlxMediaList; |
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class MGlxMediaListProvider; |
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class CAknAppUi; |
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/** |
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* @class CGlxMpxCommandCommandHandler |
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* |
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* Command handler that creates and issues an MPXCommand |
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* |
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* @ingroup glx_group_command_handlers |
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* |
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* @lib glxviewbase.lib |
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*/ |
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class CGlxMpxCommandCommandHandler : public CGlxMediaListCommandHandler, |
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public MGlxMediaListObserver, public MProgressDialogCallback |
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{ |
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public: |
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/** |
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* Constructor |
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* @param aMediaListProvider The owner of the media list to use |
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*/ |
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IMPORT_C CGlxMpxCommandCommandHandler(MGlxMediaListProvider* aMediaListProvider, TBool aHasToolbarItem = EFalse ); |
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|
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/** |
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* Destructor |
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*/ |
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IMPORT_C virtual ~CGlxMpxCommandCommandHandler(); |
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protected: // API for deriving classes |
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/** |
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* Attempts to "exit" the command handler |
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* (Exit means closing the progress note and allowing user to do something.) |
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* The command handler will exit if |
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* - progress is complete <b>and</b> deriving class returns ETrue from OkToExit |
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* - aErrorCode is not KErrNone |
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* |
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* Usually deriving classes never need to call this. This is called |
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* automatically after receiving a collection message. Only call if the |
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* completion can happen (= the result of OkToExit() call changes) based |
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* on another event than collection message. |
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* |
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* @param aErrorCode Error code. Shows an error note if other than KErrNone |
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*/ |
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IMPORT_C void TryExitL(TInt aErrorCode); |
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/** |
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* See @ref CGlxCommandHandler::DoActivateL |
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* Default implementation does nothing |
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*/ |
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IMPORT_C virtual void DoActivateL( TInt aViewId ); |
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|
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/** |
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* Called when the owning view is deactivated |
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*/ |
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IMPORT_C virtual void Deactivate(); |
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/** |
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* Handles error |
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* Default implementation shows an error note |
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*/ |
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IMPORT_C virtual void HandleErrorL(TInt aErrorCode); |
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/** |
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* Creates a command object, and decides whether to consume the command. |
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* @param aList Media list to which the command will be issued. |
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* @param aConsume Set this to false, if the command |
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* id should not be consumed. Default value is true. |
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* @return command object If NULL returned, no MPX command will be issued, |
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* but the command id may still be consumed, depending |
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* on the value of aDoNotConsume |
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* Caller gets ownership of the command object. |
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*/ |
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virtual CMPXCommand* CreateCommandL(TInt aCommandId, MGlxMediaList& aList, |
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TBool& aConsume) const = 0; |
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|
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/** |
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* Handles a message other than progress message. |
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* Deriving classes can override this to receive and handle messages |
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* from media list (i.e., from MPX server) |
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* The default implementation does not do anything. |
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* @return Error code. If other than KErrNone, the command handler |
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* closes the progress note and shows an error note. |
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*/ |
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IMPORT_C virtual TInt DoHandleMessageL(const CMPXMessage& aMessage, |
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MGlxMediaList& aList); |
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|
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/** |
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* Called by HandleCommandCompleteL() to allow derived classes |
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* to perform processing specific to individual command handlers. |
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* The defalut implementation does not do anything. |
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* |
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*/ |
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IMPORT_C virtual void DoHandleCommandCompleteL(TAny* aSessionId, |
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CMPXCommand* aCommandResult, TInt aError, MGlxMediaList* aList); |
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|
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/** |
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* Called by HandleCommandCompleteL() to allow derived classes |
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* to perform processing specific to individual command handlers. |
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* The defalut implementation does not do anything. |
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* |
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*/ |
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IMPORT_C virtual void DoHandleItemAddedL(TInt aStartIndex, TInt aEndIndex, MGlxMediaList* aList); |
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|
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/** |
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* Called to check if the deriving class is ready and progress note |
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* can be closed. The deriving class may be expecting a message (etc) after |
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* the last progress notification is received, and by overriding |
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* this class, they can wait for that info. |
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* Default implementation returns ETrue. |
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* @return ETrue if command handler is ready exit |
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*/ |
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IMPORT_C virtual TBool OkToExit() const; |
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|
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/** |
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* Creates and returns confirmation note text |
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* Deriving class can override this to get a confirmation note shown |
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* before execution |
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* @param aCommandId Id of the command that is about to be executed |
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* @param aMultiSelection ETrue when more than one item is selected |
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* @return New descriptor with confirmation note |
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* If single selection, the descriptor must contain %U, which |
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* will be populated with the title of the selected/focused item |
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* If multiselection, the descriptor must contain %N, which |
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* will be populated with the number of selected items |
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* Or return NULL, in which case no note will be shown and the command |
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* is simply executed. |
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* Caller gets ownership of the descriptor. |
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* Default implementation returns NULL. |
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*/ |
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IMPORT_C virtual HBufC* ConfirmationTextL(TInt aCommandId, TBool aMultiSelection) const; |
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|
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/** |
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* Creates and returns progress note text |
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* Deriving class can override this to customise the progress note |
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* @return New descriptor with progress text |
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* Or return NULL, in which case default progress text will be |
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* used |
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* Default implementation returns default progress note |
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* Caller gets ownership of the descriptor. |
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*/ |
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IMPORT_C virtual HBufC* ProgressTextL(TInt aCommandId) const; |
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|
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/** |
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* Creates and returns completion note text |
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* Deriving class can override this to show a completion note |
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* @return New descriptor with completion text |
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* Or return NULL, in which case the note will not be shown |
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* Default implementation returns NULL |
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* Caller gets ownership of the descriptor. |
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*/ |
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IMPORT_C virtual HBufC* CompletionTextL() const; |
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|
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private: |
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/** See @ref CGlxMediaListCommandHandler::DoExecuteL */ |
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virtual TBool DoExecuteL(TInt aCommandId, MGlxMediaList& aList); |
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|
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/** |
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* Launch a confirmation note (single or multiple depending on media list selection) |
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* Declared as virtual to allow deriving class to show non-media list dependent |
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* confirmation note, etc. |
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* @return ETrue if the user confirms, EFalse if user cancels |
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*/ |
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IMPORT_C virtual TBool ConfirmationNoteL(TInt aCommandId, MGlxMediaList& aMediaList) const; |
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|
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/** |
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* Launch a confirmation note (single) |
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* @return ETrue if the user confirms |
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*/ |
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TBool ConfirmationNoteSingleL(TInt aCommandId, MGlxMediaList& aMediaList) const; |
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|
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/** |
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* Launch a confirmation note (multiple) |
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* @return ETrue if the user confirms |
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*/ |
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TBool ConfirmationNoteMultipleL(TInt aCommandId, MGlxMediaList& aMediaList) const; |
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/** |
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* Launch a progress note |
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*/ |
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void ProgressNoteL(TInt aCommandId); |
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/** |
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* Update progress based on message |
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* @param aMessage message with progress info |
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* @param aError extracts an error code from message and returns in this argument |
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* @param ETrue if progress complete. EFalse if note |
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*/ |
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TBool UpdateProgressL(const CMPXMessage& aMessage, TInt& aError); |
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/** |
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* Dismiss the active progress note |
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*/ |
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void DismissProgressNoteL(); |
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/** |
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* Show a completion note |
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*/ |
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void CompletionNoteL() const; |
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/** |
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* Remove medialist observer |
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*/ |
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void RemoveMediaListObserver(); |
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protected: // From MGlxMediaListObserver |
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/// See @ref MGlxMediaListObserver::HandleItemAddedL |
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IMPORT_C void HandleItemAddedL(TInt aStartIndex, TInt aEndIndex, MGlxMediaList* aList); |
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/// See @ref MGlxMediaListObserver::HandleMediaL |
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IMPORT_C void HandleMediaL(TInt aListIndex, MGlxMediaList* aList); |
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/// See @ref MGlxMediaListObserver::HandleItemRemovedL |
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IMPORT_C void HandleItemRemovedL(TInt aStartIndex, TInt aEndIndex, MGlxMediaList* aList); |
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/// See @ref MGlxMediaListObserver::HandleItemModifiedL |
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IMPORT_C void HandleItemModifiedL(const RArray<TInt>& aItemIndexes, MGlxMediaList* aList); |
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/// See @ref MGlxMediaListObserver::HandleAttributesAvailableL |
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IMPORT_C void HandleAttributesAvailableL(TInt aItemIndex, |
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const RArray<TMPXAttribute>& aAttributes, MGlxMediaList* aList); |
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/// See @ref MGlxMediaListObserver::HandleFocusChangedL |
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IMPORT_C void HandleFocusChangedL(NGlxListDefs::TFocusChangeType aType, TInt aNewIndex, TInt aOldIndex, MGlxMediaList* aList); |
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/// See @ref MGlxMediaListObserver::HandleItemSelectedL |
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IMPORT_C void HandleItemSelectedL(TInt aIndex, TBool aSelected, MGlxMediaList* aList); |
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/// See @ref MGlxMediaListObserver::HandleMessageL |
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IMPORT_C void HandleMessageL(const CMPXMessage& aMessage, MGlxMediaList* aList); |
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/// See @ref MGlxMediaListObserver::HandleCommandCompleteL |
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IMPORT_C void HandleCommandCompleteL(TAny* aSessionId, CMPXCommand* aCommandResult, TInt aError, MGlxMediaList* aList); |
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public: // from MProgressDialogCallback |
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IMPORT_C void DialogDismissedL(TInt aButtonId); |
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private: |
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/// Progress dialog |
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CAknProgressDialog* iProgressDialog; |
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// Progress info for the progress dialog |
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CEikProgressInfo* iProgressInfo; |
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// CEikProgressInfo does not store whether progress is complete, so store here |
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TBool iProgressComplete; |
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// Resource offset |
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mutable TInt iResourceOffset; |
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/// Whether the GIF animation is currently halted |
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TBool iAnimationStopped; |
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/// The AppUI. Not owned |
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CAknAppUi* iAppUi; |
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}; |
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#endif // __C_GLXMPXCOMMANDCOMMANDHANDLER_H__ |