photosgallery/viewframework/views/viewbase/inc/glxviewbase.h
branchRCL_3
changeset 60 5b3385a43d68
child 75 01504893d9cb
equal deleted inserted replaced
59:8e5f6eea9c9f 60:5b3385a43d68
       
     1 /*
       
     2 * Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). 
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:    View Base 
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 
       
    20 
       
    21 #ifndef C_GLXVIEWBASE_H
       
    22 #define C_GLXVIEWBASE_H
       
    23 
       
    24 // INCLUDES
       
    25 
       
    26 
       
    27 #include <aknview.h>
       
    28 #include  <akntitle.h>
       
    29 #include <alf/alftimedvalue.h>
       
    30 #include <alf/ialfviewwidget.h>
       
    31 #include <glxanimationfactory.h>
       
    32 #include "glxkeyeventreceiver.h"
       
    33 #include <mglxanimationobserver.h>
       
    34 #include <glxlog.h>
       
    35 #include <akntoolbar.h>
       
    36 #include <akntoolbarobserver.h>
       
    37 #include "mglxsoftkeyhandler.h"
       
    38 #include <mul/mulevent.h>
       
    39 #include <alf/ialfwidgetfactory.h>
       
    40 class CGlxCommandHandler;
       
    41 class CGlxUiUtility;
       
    42 class CAlfControlGroup;
       
    43 class CGlxKeyMonitor;
       
    44 
       
    45 // CLASS DECLARATION
       
    46 
       
    47 /**
       
    48  *  View base
       
    49  *
       
    50  *  @lib glxviewbase.lib
       
    51  */
       
    52 class CGlxViewBase : public CAknView, 
       
    53                      public MGlxAnimationObserver,
       
    54                      public MAknToolbarObserver
       
    55     {
       
    56 public:
       
    57     /**
       
    58      * Constructor
       
    59      */
       
    60     IMPORT_C CGlxViewBase(TBool aSyncActivation = ETrue);
       
    61 
       
    62     /**
       
    63      * Destructor.
       
    64      */
       
    65     IMPORT_C virtual ~CGlxViewBase();
       
    66 
       
    67     /**
       
    68      * Add a command handler to the view (ownership transferred and the
       
    69      * command handler is deleted in the event of a leave).
       
    70      * @param aCommandHandler The command handler to add.
       
    71      */
       
    72     IMPORT_C void AddCommandHandlerL(CGlxCommandHandler* aCommandHandler);
       
    73 
       
    74 	/**
       
    75 	 * Enable and set a Title in screen furniture
       
    76 	 * @param aTitleText The text to be displayed
       
    77 	 * @param aAnimate Indicates if the change is to be animated
       
    78 	 */
       
    79     IMPORT_C void SetTitleL(const TDesC& aTitleText);
       
    80 
       
    81 	/**
       
    82 	 * Disable a Title in screen furniture
       
    83 	 * @param aAnimate Indicates if the change is to be animated
       
    84 	 */
       
    85     IMPORT_C void DisableTitle();
       
    86 	
       
    87 	/**
       
    88      * Handles commands
       
    89 	 * @param aCommand The command to respond to
       
    90 	 * @return ETrue iff the command has been handled.
       
    91      */
       
    92     IMPORT_C virtual TInt DoHandleCommandL(TInt aCommand);    
       
    93     
       
    94 	/**
       
    95      * Sets the grid tool.
       
    96 	 * @param grid toolbar handle. 
       
    97      */
       
    98     IMPORT_C void SetGridToolBar(CAknToolbar* aToolbar);
       
    99     
       
   100 	/**
       
   101      * Returns the current active toolbar
       
   102      * Needed as grid toolbar is created dynamically
       
   103      */
       
   104     IMPORT_C CAknToolbar* GetToolBar();
       
   105 
       
   106 protected: // From MCoeView.
       
   107 
       
   108     /** 
       
   109      * See @ref MCoeView. 
       
   110      */
       
   111 	IMPORT_C void ViewActivatedL(const TVwsViewId& aPrevViewId,
       
   112 	                             TUid aCustomMessageId,
       
   113 	                             const TDesC8& aCustomMessage);
       
   114 
       
   115     /** 
       
   116      * See @ref MCoeView
       
   117      */
       
   118 	IMPORT_C void ViewDeactivated();
       
   119 
       
   120 
       
   121 protected: // From MGlxAnimationObserver 
       
   122     IMPORT_C virtual void AnimationComplete(MGlxAnimation* aAnimation); 
       
   123 
       
   124 protected:
       
   125     //From MAknToolbarObserver
       
   126     IMPORT_C void OfferToolbarEventL( TInt aCommand );
       
   127     
       
   128     IMPORT_C void SetToolbarObserver(MAknToolbarObserver* aObserver);
       
   129     
       
   130 protected:
       
   131 	/**
       
   132 	 * IMPORTANT: Call this from the ConstructL of any derived class
       
   133 	 */
       
   134 	IMPORT_C void ViewBaseConstructL();
       
   135 
       
   136 	/**
       
   137 	 * Derived classes should use this to deal with any view-specific commands
       
   138 	 * @param aCommand The command to respond to
       
   139 	 * @return ETrue iff the command has been handled.
       
   140 	 */
       
   141 	IMPORT_C virtual TBool HandleViewCommandL(TInt aCommand);
       
   142 	
       
   143 	/**
       
   144 	 * Derived classes should use this to initialize the menus if required
       
   145 	 * @param aResourceId The menu resource
       
   146 	 * @param aMenuPane The menu pane to edit
       
   147 	 */
       
   148 	IMPORT_C virtual void ViewDynInitMenuPaneL(TInt aResourceId, CEikMenuPane* aMenuPane);
       
   149 	
       
   150 	/**
       
   151 	 * This will be called on derived classes when the view is activated
       
   152      * @param aPrevViewId Specifies the view previously active.
       
   153      * @param aCustomMessageId Specifies the message type.
       
   154      * @param aCustomMessage The activation message.
       
   155 	 */
       
   156 	virtual void DoViewActivateL(const TVwsViewId& aPrevViewId, TUid aCustomMessageId, const TDesC8& aCustomMessage) = 0;
       
   157 	
       
   158 	/**
       
   159 	 * This will be called on derived classes when the view is deactivated
       
   160 	 */
       
   161     virtual void DoViewDeactivate() = 0;
       
   162 
       
   163     /**
       
   164 	 * This is called on derived classes before the options menu
       
   165 	 * is opened. The derived classes should use it to ensure that 
       
   166 	 * all required attributes have been retrieved in order to determine
       
   167 	 * if the command should be displayed on the options menu and.
       
   168 	 */
       
   169     IMPORT_C virtual void FetchAttributesL();    
       
   170 	
       
   171     /**
       
   172    	 * This is called on derived classes before commands are executed.
       
   173    	 * The derived classes should use it to ensure that all the required
       
   174    	 * attributes have been tetrieved in order to execute the command.
       
   175    	 */
       
   176     IMPORT_C virtual void FetchAttributesForCommandL(TInt aCommand);
       
   177     
       
   178 	/**
       
   179      * Report whether the given type of animation is supported by the class
       
   180      * @return ETrue iff the animaiton is implemented
       
   181      */
       
   182     IMPORT_C virtual TBool ViewAnimationSupported(TGlxViewswitchAnimation aType); 
       
   183     
       
   184     /**
       
   185      * Start the given type of view-switch animation
       
   186      * @param aType The type of animation (e.g. Entry / Exit)
       
   187      * @param aDirection The direction of the animation (e.g. Forwards / Backwards)
       
   188      */
       
   189     IMPORT_C virtual void DoViewAnimationL(TGlxViewswitchAnimation aType, TGlxNavigationDirection aDirection);
       
   190     
       
   191     /**
       
   192      * Sets the toolbar state after command execution.
       
   193      * @ return ETrue If item is a system item. Else EFalse 
       
   194      */
       
   195     IMPORT_C virtual void SetToolbarStateL();
       
   196 
       
   197     
       
   198 private:	
       
   199 	// From MEikMenuObserver
       
   200 	IMPORT_C virtual void DynInitMenuPaneL(TInt aResourceId, CEikMenuPane* aMenuPane);
       
   201 	
       
   202 	// From MGlxUiCommandHandler
       
   203 	IMPORT_C void HandleCommandL(TInt aCommand);
       
   204 
       
   205 	// From CAknView
       
   206     IMPORT_C void DoActivateL(const TVwsViewId& aPrevViewId, TUid aCustomMessageId, const TDesC8& aCustomMessage);
       
   207     IMPORT_C void DoDeactivate();
       
   208 
       
   209 private:
       
   210 
       
   211     /**
       
   212      * Initialize a viewswitch animation
       
   213      * @param aType The type of animation to start
       
   214      */
       
   215     void InitAnimationL(TGlxViewswitchAnimation aType); 
       
   216     
       
   217     /**
       
   218      * Cancel the current viewswitch animation, if any
       
   219      */
       
   220     void CancelViewAnimation(); 
       
   221 
       
   222     /**
       
   223      * Called when the view-switch animation is complete or interrupted
       
   224      * @param aType The type of animation (e.g. Entry / Exit)
       
   225      */
       
   226     void ViewAnimationComplete(TGlxViewswitchAnimation aType); 
       
   227     
       
   228     /**
       
   229      * Gets the title pane instance.
       
   230      */
       
   231     CAknTitlePane* GetTitlePaneL();
       
   232 
       
   233     /*
       
   234      * Set toolbar items dimmed.
       
   235      * @param aDimmed Flag for the toolbar items to be dimmed.
       
   236      */
       
   237     void SetToolbarItemsDimmed(TBool aDimmed);
       
   238     
       
   239 protected:
       
   240 	/**
       
   241 	 * Optionally implemented by sub-classes to prepare command handlers.
       
   242 	 * Called once for every command handler added to the view.
       
   243 	 * @param aCommandHandler command handler added to the view.
       
   244 	 */
       
   245     virtual void DoPrepareCommandHandlerL(CGlxCommandHandler* /*aCommandHandler*/) {};
       
   246 
       
   247 protected:
       
   248 	/// The list of command handlers owned by the view
       
   249 	RPointerArray<CGlxCommandHandler> iCommandHandlerList;    
       
   250 
       
   251 protected:
       
   252 	CGlxUiUtility* iUiUtility; ///< The UiUtility in use
       
   253 	
       
   254 	/// The view animation time
       
   255     TInt iViewAnimationTime; 
       
   256     
       
   257     /// Status of FullScreen Transition is started
       
   258     TBool iIsTransEffectStarted;
       
   259 private:
       
   260     /**
       
   261      * Functions to handle view activate asynchronously
       
   262      */
       
   263     static TBool ViewActivateCallbackL(TAny* aPtr);
       
   264     inline void ViewActivateL();
       
   265 
       
   266 private:
       
   267     /// Resource file offset
       
   268     TInt iViewBaseResourceOffset;
       
   269 
       
   270     /// Ui Utility resource file offset
       
   271     TInt iUiUtilitiesResourceOffset;
       
   272     /// The type of viewswitch animation in progress, if any
       
   273     TGlxViewswitchAnimation iViewAnimationInProgress; 
       
   274     
       
   275     /// Flag to determine if this view is activated synchronously
       
   276     const TBool iSyncActivation;
       
   277 
       
   278     //This is a Kind of Hack to prevent Photos to act on any command's till 
       
   279     //Corresponding view is activated
       
   280     //This Should be fixed with Proper Way
       
   281     TBool iViewActivated;
       
   282 
       
   283     /// View activate attributes for callback
       
   284     TVwsViewId iPrevViewId;
       
   285     TUid iCustomMessageId;
       
   286     HBufC8* iCustomMessage;
       
   287 
       
   288     /// Callback for view activate
       
   289 	CAsyncCallBack* iViewActivateCallback;
       
   290 		
       
   291 	/// Status pane for title
       
   292 	CAknTitlePane* iTitlePane;
       
   293 	//used store the grid toolbar
       
   294 	CAknToolbar* iToolbar;
       
   295     };
       
   296 
       
   297 
       
   298 #endif // C_GLXVIEWBASE_H