smscryptosymbiancppuilistbox.cpp

symbian 发送短信例子 S60 SMS Sample

/*
* ============================================================================
*  Name     : SMSCryptoSymbianCppUIListBox.cpp
*  Part of  : Open C SMS Crypto Example
*  Created  : 05/25/2007 by Forum Nokia
*  Version  : 1.0
*  Copyright: Nokia Corporation
* ============================================================================
*/

#include "SMSCryptoSymbianCppUIListBox.h"
#include "SMSCryptoSymbianCppUIListBoxView.h"
#include "SMSCryptoSymbianCppUI.hrh"
#include "SMSCryptoSymbianCppUIListBox.hrh"
#include "SMSCryptoSymbianCppUITextEditor.hrh"

#include <barsread.h>
#include <stringloader.h>
#include <aknlists.h>
#include <eikenv.h>
#include <akniconarray.h>
#include <eikclbd.h>
#include <aknviewappui.h>
#include <eikappui.h>
#include <SMSCryptoSymbianCppUI.rsg>
#include <smuthdr.h>
#include <smut.h>

const TInt KArrayGranularity=10;
/**
 * First phase of Symbian two-phase construction. Should not 
 * contain any code that could leave.
 */
CSMSCryptoSymbianCppUIListBox::CSMSCryptoSymbianCppUIListBox()
	{
	iListBox = NULL;
	}

/** 
 * Destroy child controls.
 */
CSMSCryptoSymbianCppUIListBox::~CSMSCryptoSymbianCppUIListBox()
	{
	delete iListBox;
	delete iArrayAddr;
	delete iArrayMsgBody;
	delete iSmsMtm;
	delete iClientMtmReg;
	delete iSession;
	}
				
/**
 * Construct the control (first phase).
 *  Creates an instance and initializes it.
 *  Instance is not left on cleanup stack.
 * @param aRect bounding rectangle
 * @param aParent owning parent, or NULL
 * @param aCommandObserver command observer
 * @return initialized instance of CSMSCryptoSymbianCppUIListBox
 */
CSMSCryptoSymbianCppUIListBox* CSMSCryptoSymbianCppUIListBox::NewL( 
		const TRect& aRect, 
		const CCoeControl* aParent, 
		MEikCommandObserver* aCommandObserver )
	{
	CSMSCryptoSymbianCppUIListBox* self = CSMSCryptoSymbianCppUIListBox::NewLC( 
			aRect, 
			aParent, 
			aCommandObserver );
	CleanupStack::Pop( self );
	return self;
	}

/**
 * Construct the control (first phase).
 *  Creates an instance and initializes it.
 *  Instance is left on cleanup stack.
 * @param aRect The rectangle for this window
 * @param aParent owning parent, or NULL
 * @param aCommandObserver command observer
 * @return new instance of CSMSCryptoSymbianCppUIListBox
 */
CSMSCryptoSymbianCppUIListBox* CSMSCryptoSymbianCppUIListBox::NewLC( 
		const TRect& aRect, 
		const CCoeControl* aParent, 
		MEikCommandObserver* aCommandObserver )
	{
	CSMSCryptoSymbianCppUIListBox* self = new ( ELeave ) CSMSCryptoSymbianCppUIListBox();
	CleanupStack::PushL( self );
	self->ConstructL( aRect, aParent, aCommandObserver );
	return self;
	}
			
/**
 * Construct the control (second phase).
 *  Creates a window to contain the controls and activates it.
 * @param aRect bounding rectangle
 * @param aCommandObserver command observer
 * @param aParent owning parent, or NULL
 */ 
void CSMSCryptoSymbianCppUIListBox::ConstructL( 
		const TRect& aRect, 
		const CCoeControl* aParent, 
		MEikCommandObserver* aCommandObserver )
	{
	if ( aParent == NULL )
	    {
		CreateWindowL();
	    }
	else
	    {
	    SetContainerWindowL( *aParent );
	    }
	iFocusControl = NULL;
	iCommandObserver = aCommandObserver;
	InitializeControlsL();
	SetRect( aRect );
	ActivateL();

	iSession = CMsvSession::OpenSyncL(*this);

    iClientMtmReg = CClientMtmRegistry::NewL(*iSession);
    iSmsMtm = static_cast<CSmsClientMtm*>(iClientMtmReg->NewMtmL(KUidMsgTypeSMS));
	
	iArrayAddr = new (ELeave) CDesCArrayFlat( KArrayGranularity );
	iArrayMsgBody = new (ELeave) CDesCArrayFlat( KArrayGranularity );
	
    GetSMSFromInboxL();
	}
			
/**
* Return the number of controls in the container (override)
* @return count
*/
TInt CSMSCryptoSymbianCppUIListBox::CountComponentControls() const
	{
	return ( int ) ELastControl;
	}
				
/**
* Get the control with the given index (override)
* @param aIndex Control index [0...n) (limited by #CountComponentControls)
* @return Pointer to control
*/
CCoeControl* CSMSCryptoSymbianCppUIListBox::ComponentControl( TInt aIndex ) const
	{
	switch ( aIndex )
		{
	case EListBox:
		return iListBox;
		}
	
	// handle any user controls here...
	
	return NULL;
	}
				
/**
 *	Handle resizing of the container. This implementation will lay out
 *  full-sized controls like list boxes for any screen size, and will layout
 *  labels, editors, etc. to the size they were given in the UI designer.
 *  This code will need to be modified to adjust arbitrary controls to
 *  any screen size.
 */				
void CSMSCryptoSymbianCppUIListBox::SizeChanged()
	{
	CCoeControl::SizeChanged();
	LayoutControls();
	}
				
/**
 * Layout components as specified in the UI Designer
 */
void CSMSCryptoSymbianCppUIListBox::LayoutControls()
	{
	iListBox->SetExtent( TPoint( 0, 0 ), iListBox->MinimumSize() );
	}

/**
 *	Handle key events.
 */				
TKeyResponse CSMSCryptoSymbianCppUIListBox::OfferKeyEventL( 
		const TKeyEvent& aKeyEvent, 
		TEventCode aType )
	{
	if ( aKeyEvent.iCode == EKeyLeftArrow 
		|| aKeyEvent.iCode == EKeyRightArrow )
		{
		// Listbox takes all events even if it doesn't use them
		return EKeyWasNotConsumed;
		}
	
	if ( aKeyEvent.iCode == EKeyOK )
			{
			return EKeyWasNotConsumed;
			}
	
	if ( iFocusControl != NULL
		&& iFocusControl->OfferKeyEventL( aKeyEvent, aType ) == EKeyWasConsumed )
		{
		return EKeyWasConsumed;
		}
	return CCoeControl::OfferKeyEventL( aKeyEvent, aType );
	}
				
/**
 *	Initialize each control upon creation.
 */				
void CSMSCryptoSymbianCppUIListBox::InitializeControlsL()
	{
	iListBox = new ( ELeave ) CAknSingleStyleListBox;
	iListBox->SetContainerWindowL( *this );
		{
		TResourceReader reader;
		iEikonEnv->CreateResourceReaderLC( reader, R_SMSCRYPTO_SYMBIAN_CPPUILIST_BOX_LIST_BOX );
		iListBox->ConstructFromResourceL( reader );
		CleanupStack::PopAndDestroy(); // reader internal state
		}
		
    _LIT(KDefaultText, "SMS Crypto Symbian Cpp UI Example");
    iListBox->View()->SetListEmptyTextL(KDefaultText);
		
	// the listbox owns the items in the list and will free them
	iListBox->Model()->SetOwnershipType( ELbmOwnsItemArray );
	
	// setup the icon array so graphics-style boxes work
	SetupListBoxIconsL();

	iListBox->SetFocus( ETrue );
	iFocusControl = iListBox;
	
	}

/** 
 * Handle global resource changes, such as scalable UI or skin events (override)
 */
void CSMSCryptoSymbianCppUIListBox::HandleResourceChange( TInt aType )
	{
	CCoeControl::HandleResourceChange( aType );
	SetRect( iAvkonViewAppUi->View( TUid::Uid( ESMSCryptoSymbianCppUIListBoxViewId ) )->ClientRect() );
	}
				
/**
 *	Draw container contents.
 */				
void CSMSCryptoSymbianCppUIListBox::Draw( const TRect& aRect ) const
	{
	CWindowGc& gc = SystemGc();
	gc.Clear( aRect );
	}
				
/**
 *	Add a list box item to a list.
 */
void CSMSCryptoSymbianCppUIListBox::AddListBoxItemL(
		CEikTextListBox* aListBox,
		const TDesC& aString)
	{
	CTextListBoxModel* model = aListBox->Model();
	CDesCArray* itemArray = static_cast< CDesCArray* > ( model->ItemTextArray() );
	itemArray->InsertL( 0, aString );
	aListBox->HandleItemAdditionL();
	}
				
/**
 * Get the array of selected item indices, with respect to the list model.
 * The array is sorted in ascending order.
 * The array should be destroyed with two calls to CleanupStack::PopAndDestroy(),
 * the first with no argument (referring to the internal resource) and the
 * second with the array pointer.
 * @return newly allocated array, which is left on the cleanup stack;
 *	or NULL for empty list. 
 */
RArray< TInt >* CSMSCryptoSymbianCppUIListBox::GetSelectedListBoxItemsLC( CEikTextListBox* aListBox )
	{
	CAknFilteredTextListBoxModel* model = 
		static_cast< CAknFilteredTextListBoxModel *> ( aListBox->Model() );
	if ( model->NumberOfItems() == 0 )
		return NULL;
		
	// get currently selected indices
	const CListBoxView::CSelectionIndexArray* selectionIndexes =
		aListBox->SelectionIndexes();
	TInt selectedIndexesCount = selectionIndexes->Count();
	if ( selectedIndexesCount == 0 )
		return NULL;
		
	// copy the indices and sort numerically
	RArray<TInt>* orderedSelectedIndices = 
		new (ELeave) RArray< TInt >( selectedIndexesCount );
	
	// push the allocated array
	CleanupStack::PushL( orderedSelectedIndices );
	
	// dispose the array resource
	CleanupClosePushL( *orderedSelectedIndices );
	
	// see if the search field is enabled
	CAknListBoxFilterItems* filter = model->Filter();
	if ( filter != NULL )
		{
		// when filtering enabled, translate indices back to underlying model
		for ( TInt idx = 0; idx < selectedIndexesCount; idx++ )
			{
			TInt filteredItem = ( *selectionIndexes ) [ idx ];
			TInt actualItem = filter->FilteredItemIndex ( filteredItem );
			orderedSelectedIndices->InsertInOrder( actualItem );
			}
		}
	else
		{
		// the selection indices refer directly to the model
		for ( TInt idx = 0; idx < selectedIndexesCount; idx++ )
			orderedSelectedIndices->InsertInOrder( ( *selectionIndexes ) [ idx ] );
		}	
		
	return orderedSelectedIndices;
	}
				
/**
 * Delete the selected item or items from the list box.
 */
void CSMSCryptoSymbianCppUIListBox::DeleteSelectedListBoxItemsL( CEikTextListBox* aListBox )
	{
	CAknFilteredTextListBoxModel* model = 
		static_cast< CAknFilteredTextListBoxModel *> ( aListBox->Model() );
	if ( model->NumberOfItems() == 0 )
		return;
	
	RArray< TInt >* orderedSelectedIndices = GetSelectedListBoxItemsLC( aListBox );		
	if ( !orderedSelectedIndices )
		return;
		
	// Delete selected items from bottom up so indices don't change on us
	CDesCArray* itemArray = static_cast< CDesCArray* > ( model->ItemTextArray() );
	TInt currentItem = 0;
	
	for ( TInt idx = orderedSelectedIndices->Count(); idx-- > 0; ) 
		{
		currentItem = ( *orderedSelectedIndices )[ idx ];
		itemArray->Delete ( currentItem );
		}
	
	// dispose the array resources
	CleanupStack::PopAndDestroy();
	
	// dispose the array pointer
	CleanupStack::PopAndDestroy( orderedSelectedIndices );
	
	// refresh listbox's cursor now that items are deleted
	AknListBoxUtils::HandleItemRemovalAndPositionHighlightL(
		aListBox, currentItem, ETrue );
	}
				
/**
 *	Get the listbox.
 */
CAknSingleStyleListBox* CSMSCryptoSymbianCppUIListBox::ListBox()
	{
	return iListBox;
	}
				
/**
 *	Create a list box item with the given column values.
 */
void CSMSCryptoSymbianCppUIListBox::CreateListBoxItemL( TDes& aBuffer, 
		const TDesC& aMainText )
	{
	_LIT ( KStringHeader, "\t%S" );
	
	aBuffer.Format( KStringHeader(), &aMainText );
	} 
				
/**
 *	Add an item to the list by reading the text items from the array resource
 *	and setting a single image property (if available) from an index
 *	in the list box's icon array.
 *	@param aResourceId id of an ARRAY resource containing the textual
 *	items in the columns
 *	
 */
void CSMSCryptoSymbianCppUIListBox::AddListBoxResourceArrayItemL( TInt aResourceId )
	{
	CDesCArray* array = iCoeEnv->ReadDesCArrayResourceL( aResourceId );
	CleanupStack::PushL( array );
	// This is intended to be large enough, but if you get 
	// a USER 11 panic, consider reducing string sizes.
	TBuf<512> listString; 
	CreateListBoxItemL( listString, ( *array ) [ 0 ] );
	AddListBoxItemL( iListBox, listString );
	CleanupStack::PopAndDestroy( array );
	} 
				
/**
 *	Set up the list's icon array.
 */
void CSMSCryptoSymbianCppUIListBox::SetupListBoxIconsL()
	{
	CArrayPtr< CGulIcon >* icons = NULL;		
	
	if ( icons != NULL )
		{
		iListBox->ItemDrawer()->ColumnData()->SetIconArray( icons );
		}
	}
				
/** 
 *	Handle commands relating to markable lists.
 */
TBool CSMSCryptoSymbianCppUIListBox::HandleMarkableListCommandL( TInt /*aCommand*/ )
	{
	 
	return EFalse;
	}
				
/*
 * Get crypted SMS messages from Messaging Inbox
 * */
void CSMSCryptoSymbianCppUIListBox::GetFolderSMSMessageInformationL(CDesCArrayFlat* arrayAddr, CDesCArrayFlat* arrayMsgBody)
	{
    MDesCArray* textArray = iListBox->Model()->ItemTextArray();
    CDesCArray* array = static_cast<CDesCArray*>(textArray);
    array->Reset();
    iListBox->Reset();

	iSmsMtm->SwitchCurrentEntryL( KMsvGlobalInBoxIndexEntryId );
	CMsvEntry& entry = iSmsMtm->Entry();
	
	// Remember to delete this entry after no longer needed!
	// Only intrested in messages. Filter out service etries.
	CMsvEntrySelection* entries = entry.ChildrenWithMtmL(KUidMsgTypeSMS);
	CleanupStack::PushL(entries);

	TBuf<512> listString; 
	_LIT ( KStringHeader, "\tFrom: " );
	_LIT ( KHeader, "#PyCr" );
	
	for (TInt i = 0; i < entries->Count(); i++ )
		{
		// Append only SMS messages, .sis files etc. are disregarded.
		// Take only beginning of SMS body, because listbox only shows
		// beginning of message.

		// Remember to load before using the SmsHeader
		iSmsMtm->SwitchCurrentEntryL( (*entries)[i] );
		iSmsMtm->LoadMessageL();

		listString.Copy( iSmsMtm->Entry().Entry().iDescription );
		if ( listString.Left(5) == KHeader )
			{
			listString.Copy( iSmsMtm->SmsHeader().FromAddress() );
			listString.Insert( 0, KStringHeader );
			AddListBoxItemL( iListBox, listString );

			arrayMsgBody->InsertL ( 0, iSmsMtm->Entry().Entry().iDescription );
			arrayAddr->AppendL ( iSmsMtm->SmsHeader().FromAddress() );
			}
		}
	CleanupStack::PopAndDestroy(entries);
	}

/*
 * Wrapper function for loading SMS messages
 */
void CSMSCryptoSymbianCppUIListBox::GetSMSFromInboxL()
	{
	GetFolderSMSMessageInformationL(iArrayAddr, iArrayMsgBody);
	}

/*
 * Required by session
 */
void CSMSCryptoSymbianCppUIListBox::HandleSessionEventL(
		TMsvSessionEvent /*aEvent*/,
        TAny* /*aArg1*/,
        TAny* /*aArg2*/,
        TAny* /*aArg3*/)
	{
	}

/*
 * Retrieve the selected crypted SMS message
 */
TBuf<bufSize> CSMSCryptoSymbianCppUIListBox::GetSMSL()
	{
    TInt currentItem = iListBox->CurrentItemIndex();
    return iArrayMsgBody->MdcaPoint(currentItem);
	}