idlehomescreen/xmluicontroller/inc/aixmluiutils.h
author Simon Howkins <simonh@symbian.org>
Tue, 16 Nov 2010 11:12:20 +0000
branchRCL_3
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permissions -rw-r--r--
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/*
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* Copyright (c) 2005-2007 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 "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:  Collection of common utility functions
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*
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*/
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#ifndef AIXMLUIUTILS_H
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#define AIXMLUIUTILS_H
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#include <e32std.h>
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class CXnNodeAppIf;
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class CGulIcon;
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class TAiPolicyElement;
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class RPropertyHashMap;
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namespace AiXmlUiController
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    {
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    class CCssPropertyMap;
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/**
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 * Finds a property element identified by the specified class.
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 *
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 * @param aUiElement the UI element associated with the property.
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 * @param aPropertyClass the class of the property.
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 * @return pointer array to the property elements. Ownership of the array
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 *         is transferred. Ownership of the elements is not transferred.
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 */
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RPointerArray< CXnNodeAppIf > FindPropertyElementL( CXnNodeAppIf& aUiElement,
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                                                    const TDesC8& aPropertyClass );
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/**
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 * Finds a property element identified by the specified class.
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 *
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 * @param aArray The Array where to append the nodes. 
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 * @param aUiElement the UI element associated with the property.
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 * @param aPropertyClass the class of the property.
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 * @return pointer array to the property elements. Ownership of the array
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 *         is transferred. Ownership of the elements is not transferred.
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 */
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void FindPropertyElementL( RPointerArray< CXnNodeAppIf >& aArray, CXnNodeAppIf& aUiElement, const TDesC8& aPropertyClass );
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/**
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 * Gets a property value from an UI element. The ownership of value is
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 * transferred to caller.
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 *
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 * @param aUiElement the UI element to fecth the value from
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 * @param aPropertyName the name of the property to fetch.
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 * @return the value or NULL.
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 */
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HBufC* PropertyValueL( const CXnNodeAppIf& aUiElement,
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                       const TDesC8& aPropertyName );
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/**
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 * Gets a property value from an UI element.
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 *
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 * @param aUiElement the UI element to fecth the value from
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 * @param aPropertyName the name of the property to fetch.
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 * @return the value or NULL.
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 */
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const TDesC8* PropertyValue( const CXnNodeAppIf& aUiElement,
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                             const TDesC8& aPropertyName );
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/**
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 * Sets a property value into an UI element
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 *
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 * @param aUiElement the UI element to set the value into.
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 * @param aPropertyName the name of the property to set.
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 * @param aPropertyValue the new value.
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 * @param aPropertyMap map of the original property values
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 */
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void SetPropertyL( CXnNodeAppIf& aUiElement,
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                   const TDesC8& aPropertyName,
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                   const TDesC8& aPropertyValue,
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                   CCssPropertyMap& aPropertyMap );
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/**
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 * Sets a property values into hash map
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 *
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 * @param aArray the element array.
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 * @param aPropertyMap map of the original property values
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 * @param aPropertyHashMap hash map of the new property value arrays
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 */
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void SetPropertiesToHashMapL( RArray<TAiPolicyElement>& aArray,
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                              CCssPropertyMap& aPropertyMap,
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                              RPropertyHashMap& aPropertyHashMap );
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/**
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 * Sets all property values into an UI element(s)
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 *
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 * @param aPropertyMap map of the property arrays
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 */
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void SetPropertyArraysL( RPropertyHashMap& aPropertyHashMap );
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/**
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 * Sets a property value directly into an UI element
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 *
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 * @param aUiElement the UI element to set the value into.
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 * @param aPropertyName the name of the property to set.
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 * @param aPropertyValue the new value.
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 */
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void SetPropertyToNodeL( 
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    CXnNodeAppIf& aNode, 
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    const TDesC8& aPropertyName, 
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    const TDesC8& aNewValueString );
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/**
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 * Leaves with specific error if given pointer is null.
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 *
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 * @param aPtr pointer to test.
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 * @param aError error for leave.
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 * @return aPtr if it is not NULL.
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 */
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template< class PtrT > inline
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PtrT* LeaveIfNull( PtrT* aPtr, TInt aError );
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/**
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 * Loads a resource icon from the skin or from a mif-file 
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 * and puts it into cleanup stack.
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 *
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 * Leavecodes: 
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 * - KErrNotSupported: Filetype is not supported
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 * - KErrNotFound: Syntax is incorrect or icon not found 
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 *
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 * Syntaxes:
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 * - Skin: SKIN(<majorid> <minorid>)
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 * - Mif: file_name.mif#<index_in_mif>
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 *
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 * @param aResource resource node.
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 * @return icon.
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 */
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CGulIcon* LoadIconLC( CXnNodeAppIf& aResource );
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    }
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#include "aixmluiutils.inl"
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#endif // AIXMLUIUTILS_H