browserui/browser/BrowserAppInc/BrowserAppViewBase.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Mon, 26 Oct 2009 08:18:09 +0200
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/*
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* Copyright (c) 2007 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 the License "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: 
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*      Declaration of class CBrowserAppViewBase.
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*      
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*
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*/
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#ifndef BROWSER_APP_VIEW_BASE_H
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#define BROWSER_APP_VIEW_BASE_H
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// INCLUDE FILES
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#include <aknview.h>
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// FORWARD DECLARATION
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class MApiProvider;
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// CLASS DECLARATION
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/**
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*  Class to encapsulate a softkey pair made up of an Command ID and Resource qtn
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*/
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class TSKPair
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	{
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public:
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    /**
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    * Constructor.
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    * @param NONE. command and qtn are set to default.
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    */
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	TSKPair();
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    /**
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    * Constructor.
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    * @param Command and Resource IDs
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    */
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	TSKPair(TInt aId,TInt aRsc);
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	/**
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	* check to see if command/qtn are not currently set to the default assignment
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	*/
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	TBool IsAssigned();
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	/**
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	* define an == operator to check pair equality
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	* @param TSK pair
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	*/
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	TBool operator==(TSKPair aSKPair);
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	/**
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	* define an = operator for assignment
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	* @param TSK pair
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	*/
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	void operator=(TSKPair aSKPair);
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	/**
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	* a function to set the pair directly
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	* @param Command and Resource Ids
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	*/
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	void setPair(TInt aId, TInt aRsc);
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	/**
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	* retrieve the command ID
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	*/
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	TInt id() { return iCmdId; }
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	/**
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	* retrieve the qtn resource ID
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	*/
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	TInt qtn() { return iQtnRsc; }
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private:
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	/**
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	* private variables to hold command and resource ids
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	*/
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	TInt iCmdId;
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	TInt iQtnRsc;
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	};
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/**
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*  Base class all of the browser's views. Allows CBA setting and holds pointer
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*  to API provider.
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*  @lib Browser.app
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*  @since Series 60 1.2
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*/
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class CBrowserViewBase : public CAknView
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    {
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    public:     // construction
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        /**
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        * Constructor.
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        * @param aApiProvider The API provider
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        */
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        CBrowserViewBase( MApiProvider& aApiProvider );
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    public:     // new methods
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        /**
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        * Get the API provider.
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        * @since Series 60 1.2
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        * @return The API provider
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        */
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        MApiProvider& ApiProvider();
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        /**
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        * Update the view's CBA, according to its current state.
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        * This will call the view's CommandSetResourceIdL to get the
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        * command set's resource id and then change the command set to that.
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        * Note, there is no Push/Pop of CBA-s! The CBA which changes is always
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        * that of the view; that is, if there is another CBA Push()-ed on top
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        * of it (e.g. dialogs etc.), that will be unchanged.
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        * @since Series 60 1.2
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        */
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        void UpdateCbaL();
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        /**
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        * Switch cba visibility, checking landscape state
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        * @param aVisible Visibility
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        */
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        void MakeCbaVisible(TBool aVisible);
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        /**
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        * Update goto pane, if it is present in the view.
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        * @since Series 60 1.2
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        */
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        virtual void UpdateGotoPaneL();
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        /**
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        * Clear CBA.
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        * @since Series 60 1.2
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        */
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        void ClearCbaL();
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        /**
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        * Return command set id, to be displayed.
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        * Derived classes should implement this method.
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        * @since Series 60 1.2
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        * @return
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        *   - 0 if the command set should not be changed\n
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        *   - Otherwise, the desired command set's resource id
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        */
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        virtual TInt CommandSetResourceIdL() = 0;
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		/**
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		* Set command set lsk,rsk,msk dynamically via pointers.
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		* Derived classes should implement, though it can be empty.
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		* If it does nothing, empty softkeys will be assigned
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		* @since 5.0
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		*/
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		virtual void CommandSetResourceDynL(TSKPair &lsk, TSKPair &rsk, TSKPair &msk) = 0;
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        /**
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        * Handles client rect changes
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        */
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        virtual void HandleClientRectChange() = 0;
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        /**
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        * Gets the id of the previous active view.
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        */
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        inline TUid GetPreviousViewID()
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            { return iPreviousViewID; }
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        /**
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        * Sets the id of the previous active view.
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        * @param aUid UID of previous view
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        */
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        inline void SetPreviousViewID(TUid aUid)
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            { iPreviousViewID = aUid; }
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		/**
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		* gets the current view's id
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		*/
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		virtual TUid Id() const = 0;
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10
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		virtual void LaunchSearchApplicationL( const TDesC& aSearchString );
0
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    //private:
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	protected:
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        MApiProvider& iApiProvider; // API provider
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        // Id of the view which was active before this view.
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        TUid iPreviousViewID;
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    private:
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    	// For each child view class, track
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    	// the last command set, dynamic lsk,rsk,msk settings
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    	// to update CBA as little as possible
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    	TInt iLastCommandSet;
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    	TSKPair iLastLSK;
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    	TSKPair iLastRSK;
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    	TSKPair iLastMSK;
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    };
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#endif// End of File