/*
* Copyright (c) 2002-2007 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description: Plugin utility used for automatic tags ( http, email, phone numbers, URI schemes )
* syntax highlighting in text viewers
*
*
*/
// INCLUDES
#include <eikrted.h>
#include <txtrich.h> // for CRichText
#include "ItemFinder.h"
#include <finditemengine.h>
#include <commonphoneparser.h>
#include <txtfrmat.h>
#include <AknUtils.h> // for AknUtils
#include <AknsUtils.h>
// scheme recog
#include <ecom/ecom.h>
#include <ecom/implementationinformation.h>
#include <centralrepository.h>
#include <CommonUiInternalCRKeys.h>
// CONSTANTS
const TInt KMINTAGLENGTH(5);
_LIT( KHTTPPREFIX, "http://");
_LIT( RTSP, "rtsp");
_LIT( KTELPREFIX, "tel:");
const TInt KItemFinderMinDigitsToFind = 5;
#define SCHEME_INTERFACE_DEF TUid( TUid::Uid(0x101f8534) ) // we don't want header dependency to browser utilities
NONSHARABLE_CLASS(CSchemeResolver): public CBase
{
public:
CSchemeResolver(){};
static CSchemeResolver* NewL();
inline CArrayPtrFlat<HBufC>& SupportedSchemes(){ return *iSupportedArray; };
~CSchemeResolver();
private:
void ConstructL();
CArrayPtrFlat<HBufC>* iSupportedArray;
RImplInfoPtrArray iEcomInfoArray;
};
CSchemeResolver* CSchemeResolver::NewL()
{
CSchemeResolver* me = new (ELeave) CSchemeResolver();
CleanupStack::PushL( me );
me->ConstructL();
CleanupStack::Pop();
return me;
}
void CSchemeResolver::ConstructL()
{
//perform plugin scan
iSupportedArray = new (ELeave) CArrayPtrFlat<HBufC>( 5 );
REComSession::ListImplementationsL( SCHEME_INTERFACE_DEF, iEcomInfoArray );
for ( TInt i = 0; i < iEcomInfoArray.Count() ; i++ )
{
HBufC* data = HBufC::NewLC( iEcomInfoArray[ i ]->DataType().Length() );
data->Des().Copy( iEcomInfoArray[ i ]->DataType() );
iSupportedArray->AppendL( data );
CleanupStack::Pop();
}
iEcomInfoArray.ResetAndDestroy(); // we don't need this anymore
}
CSchemeResolver::~CSchemeResolver()
{
iEcomInfoArray.ResetAndDestroy();
if (iSupportedArray)
{
iSupportedArray->ResetAndDestroy();
}
delete iSupportedArray;
}
NONSHARABLE_CLASS(CItemFinderAsyncParser): public CActive
{
public:
static CItemFinderAsyncParser* NewL( CEikRichTextEditor* aEditor, TInt* aFirstVisible, TInt aMinDigitsToFind );
void SetCallbackObserver( CItemFinder* aObserver ){ iObserver = aObserver; };
~CItemFinderAsyncParser();
void RunL();
void DoCancel();
CFindItemEngine* iFIE;
CArrayPtrFlat<CItemFinder::CFindItemExt>* iMarkedItems;
private:
CItemFinderAsyncParser( CEikRichTextEditor* aEditor, TInt* aFirstVisible, TInt aMinDigitsToFind );
CEikRichTextEditor* iEditor;
TInt& iFirstVisible;
CItemFinder* iObserver; // not owned
TInt iMinDigitsToFind;
};
CItemFinderAsyncParser::CItemFinderAsyncParser( CEikRichTextEditor* aEditor, TInt* aFirstVisible, TInt aMinDigitsToFind )
:CActive( CActive::EPriorityIdle ), iEditor( aEditor ), iFirstVisible( *aFirstVisible ), iMinDigitsToFind( aMinDigitsToFind )
{
CActiveScheduler::Add(this);
iStatus = KRequestPending;
SetActive();
TRequestStatus* ptr = &iStatus;
User::RequestComplete( ptr, KErrNone );// RunL will be called when everything with higher priority has completed
}
CItemFinderAsyncParser* CItemFinderAsyncParser::NewL( CEikRichTextEditor* aEditor, TInt* aFirstVisible, TInt aMinDigitsToFind )
{
return new (ELeave) CItemFinderAsyncParser( aEditor, aFirstVisible, aMinDigitsToFind );
}
CItemFinderAsyncParser::~CItemFinderAsyncParser()
{
Cancel(); // does nothing
delete iFIE;
if ( iMarkedItems )
{
iMarkedItems->ResetAndDestroy();
}
delete iMarkedItems;
}
void CItemFinderAsyncParser::RunL()
{
TInt fullLength = Min( iEditor->TextLength(), 0xffff );
const TDesC& text = iEditor->Text()->Read( 0, fullLength );
TInt searchAll = CFindItemEngine::EFindItemSearchURLBin
|CFindItemEngine::EFindItemSearchMailAddressBin
|CFindItemEngine::EFindItemSearchPhoneNumberBin
|CFindItemEngine::EFindItemSearchScheme;
if ( !iFIE )
{
iFIE = CFindItemEngine::NewL( text, (CFindItemEngine::TFindItemSearchCase)searchAll, iMinDigitsToFind );
}
else
{
iFIE->DoNewSearchL( text, (CFindItemEngine::TFindItemSearchCase)searchAll, iMinDigitsToFind );
}
delete iMarkedItems;
iMarkedItems = 0;
iMarkedItems = new ( ELeave ) CArrayPtrFlat<CItemFinder::CFindItemExt>( 10 );
iEditor->RefreshParsersL();
if ( iObserver && iObserver->CallbackToExtObserver() == EFalse )
{
iEditor->SetCursorPosL( 0, EFalse ); // need to rollback in order to make sure that line will remain same
if ( iFirstVisible > 0 )
{
iEditor->SetCursorPosL( iFirstVisible, EFalse ); // Magic, parsing forces screen to first item (?)
}
iObserver->NextItemOrScrollL( iFirstVisible ? CItemFinder::EInit : CItemFinder::EInitDown );
}
}
void CItemFinderAsyncParser::DoCancel()
{
}
EXPORT_C CItemFinder::CFindItemExt::~CFindItemExt()
{
if ( iItemDescriptor )
delete iItemDescriptor;
}
CItemFinder::~CItemFinder()
{
CRichText::DeactivateParser(this);
if ( iCurrentItemExt )
{
delete iCurrentItemExt;
}
if ( iExternalLinks )
{
iExternalLinks->ResetAndDestroy();
delete iExternalLinks;
}
if ( iAsyncParser )
{
delete iAsyncParser;
}
if ( iSchemeResolver )
{
delete iSchemeResolver;
}
}
CItemFinder::CItemFinder( TInt aFindFlags ): iFlags( aFindFlags )
{}
void CItemFinder::ConstructL()
{
iMinDigitsToFind = KItemFinderMinDigitsToFind; // default
iCurrentItemExt = new (ELeave) CFindItemExt();
CRichText::ActivateParserL(this);
iSchemeResolver = CSchemeResolver::NewL();
iMinDigitsToFind = GetMinDigitsToFindL(); // variated.
}
TInt CItemFinder::GetMinDigitsToFindL()
{
TInt err = KErrNone;
CRepository* variation = CRepository::NewL( KCRUidCommonUi );
TInt value;
err = variation->Get( KCuiMinDigitsToFind, value );
delete variation;
if ( err != KErrNone )
{
value = KItemFinderMinDigitsToFind;
}
return value;
}
EXPORT_C CItemFinder* CItemFinder::NewL( TInt aFindFlags )
{
CItemFinder* me = new (ELeave) CItemFinder( aFindFlags );
CleanupStack::PushL( me );
me->ConstructL();
CleanupStack::Pop();
return me;
}
EXPORT_C TBool CItemFinder::NextItemOrScrollL( TFindDirection aDirection )
{
TBool allowScroll = ETrue;
if ( !iEditor || !(*iEditor) )
{
return EFalse;
}
if ( aDirection == EInit || aDirection == EInitUp || aDirection == EInitDown )
{
if ( aDirection == EInitUp )
{
iPreviousDirection = ENextUp;
iCurrentStart = iCurrentEnd = (*iEditor)->TextLength() - 1;
if ( iCurrentStart > 0 )
{
(*iEditor)->SetCursorPosL( iCurrentEnd, EFalse );
if ( iAsyncParser && iAsyncParser->iMarkedItems && iAsyncParser->iMarkedItems->Count() > 0 )
// Check manually if the last item ends to last character in editor
// as CRichText can't handle this correctly
{
if ( iCurrentStart <= iAsyncParser->iMarkedItems->At( iAsyncParser->iMarkedItems->Count() - 1 )->iEnd )
{
ResolveAndSetItemTypeL( iAsyncParser->iMarkedItems->At( iAsyncParser->iMarkedItems->Count() - 1 )->iStart );
}
}
}
}
else if ( aDirection == EInitDown )
{
iPreviousDirection = ENextDown;
(*iEditor)->SetCursorPosL(0,EFalse);
ResolveAndSetItemTypeL(0);
}
iFirstVisible = (*iEditor)->TextLayout()->FirstDocPosFullyInBand();
(*iEditor)->TextView()->SetCursorVisibilityL( TCursor::EFCursorInvisible, TCursor::EFCursorInvisible );
if ( iPreviousDirection == 0 )// just initialising
{
(*iEditor)->SetCursorPosL( iFirstVisible, EFalse );
return EFalse;
}
// Search first tag on screen
// and set the cursor but if none found, don't scroll
allowScroll=EFalse;
aDirection = iPreviousDirection;
// check if we didn't scroll full display but only part of it
TPoint dummy;
if ( iCurrentStart != iCurrentEnd && (*iEditor)->TextLayout()->PosInBand( iCurrentStart, dummy ) )
{
(*iEditor)->SetCursorPosL( iCurrentStart, EFalse );
if ( (*iEditor)->TextLayout()->PosInBand( iCurrentEnd, dummy ) )
{
// old selection should remain. basically this should be
// the case only when tag was partly visible in previous screen
(*iEditor)->SetSelectionL( iCurrentStart, iCurrentEnd );
return ETrue;
}
}
else if ( iPreviousDirection == ENextDown )
{ // to ensure correct scrolling of items
(*iEditor)->SetCursorPosL( iFirstVisible, EFalse );
}
}
TBool ret = EFalse;
TInt nextItem = KErrNotFound;
// Scroll cursor over tag or update page.
iPreviousDirection = aDirection;
TInt cursorPos = (*iEditor)->CursorPos();
if ( aDirection == ENextDown )
{
if ( (*iEditor)->SelectionLength() )
{
cursorPos = iCurrentEnd;
}
if ( cursorPos == 0 )
{
ResolveAndSetItemTypeL( 0 );
if ( iCurrentEnd != iCurrentStart )
{
TPoint pos;
if ( ((*iEditor)->TextLayout()->PosInBand( iCurrentEnd, pos ) ) ) // tag does not continue over screen
{
NextItemOrScrollL( EInit ); // will set the selection
return ETrue;
}
}
}
nextItem = (*iEditor)->RichText()->PositionOfNextTag( cursorPos, this );
if ( nextItem != KErrNotFound )
{ // check whether the tag is on visible screen
TPoint dummy;
if ( !(*iEditor)->TextLayout()->PosInBand( nextItem, dummy ) )
{
nextItem = KErrNotFound;
}
}
if ( allowScroll && nextItem == KErrNotFound )
{
(*iEditor)->MoveDisplayL( TCursorPosition::EFPageDown );
if ( (*iEditor)->TextLayout()->FirstDocPosFullyInBand() != iFirstVisible )
{// If keypress was effective.
ret = ETrue;
NextItemOrScrollL( EInit );
}
}
}
else
{
if ( (*iEditor)->SelectionLength() )
{
cursorPos = iCurrentStart;
}
nextItem = (*iEditor)->RichText()->PositionOfPrevTag( cursorPos, this );
/* if nextItem is KErrNotFound can mean cursorPos is in the middel of an valid item.
* so if cursorPos is in the middle of an vaild item, make sure that we adjust it to
* end of the item so that PositionOfPrevTag works fine
*/
if( nextItem == KErrNotFound )
{
if ( cursorPos > 0 )
{
cursorPos -= 1;
TInt temp = (*iEditor)->RichText()->PositionOfNextTag( cursorPos, this );
if( temp != KErrNotFound )
{
cursorPos = temp;
}
else
{
cursorPos = ( *iEditor )->TextLength();
}
}
nextItem = ( *iEditor )->RichText()->PositionOfPrevTag( cursorPos, this );
}
if ( nextItem >=0 && nextItem < iFirstVisible )
{
nextItem = KErrNotFound;
}
if ( allowScroll && nextItem == KErrNotFound )
{
(*iEditor)->MoveDisplayL( TCursorPosition::EFPageUp );
TInt currPos = (*iEditor)->TextLayout()->FirstDocPosFullyInBand();
if ( currPos != iFirstVisible )
{// If keypress was effective.
ret = ETrue;
NextItemOrScrollL( EInit );
}
}
}
if ( nextItem != KErrNotFound || !allowScroll )
{
// Check !allowScroll for the case display was scrolled but previous item is still visible
// and no new tag found, just make the selection visible again
ret = ETrue;
if ( nextItem != KErrNotFound )
{
iCurrentStart = nextItem;
ResolveAndSetItemTypeL();
}
if ( iCurrentItemExt->iItemType != ENoneSelected )
{
TPoint pos;
if ( ( !(*iEditor)->TextLayout()->PosInBand( iCurrentEnd ,pos ) ) ) // tag continues over screen
{
// lets check if we can scroll to show whole tag
// if not, we'll just show what can be fitted to screen with hl
(*iEditor)->TextLayout()->DocPosToXyPosL( iFirstVisible, pos );
TRect lineRect;
TPoint tagStart;
(*iEditor)->TextLayout()->GetLineRect( pos.iY, lineRect );
(*iEditor)->TextLayout()->DocPosToXyPosL( iCurrentStart, tagStart );
if (!lineRect.Contains(tagStart) && allowScroll )
{
(*iEditor)->MoveDisplayL( TCursorPosition::EFPageDown );
while ( !(*iEditor)->TextLayout()->PosInBand( iCurrentStart, pos ) )
{
(*iEditor)->MoveDisplayL( TCursorPosition::EFLineUp );
}
NextItemOrScrollL(EInit);
}
else if ( !lineRect.Contains( tagStart ) )
{
// we are not allowed to scroll, dont show highligh
iCurrentStart = iCurrentEnd = iFirstVisible;
ResetCurrentItem();
return ret;
}
}
else if ( nextItem == KErrNotFound )
{
// if the current end visible,and next item invisible, no select
iCurrentStart = iCurrentEnd = iFirstVisible;
ResetCurrentItem();
return ret;
}
}
if ( iCurrentStart < iCurrentEnd )
{
(*iEditor)->SetSelectionL( iCurrentStart, iCurrentEnd );
}
else
{
ResetCurrentItem(); // no item selected
}
}
return ret;
}
EXPORT_C void CItemFinder::SetFindModeL( TInt aFindFlags )
{
if ( iFlags != aFindFlags )
{
iFlags = aFindFlags;
if ( iEditor && *iEditor )
{
User::LeaveIfError ( RefreshEditor() );
}
}
if ( !aFindFlags && iEditor && *iEditor )
{
if (!iExternalObserver) // do not align if no control to scrolling
{
iCurrentEnd = iCurrentStart;
iFirstVisible = (*iEditor)->TextLayout()->FirstDocPosFullyInBand();
(*iEditor)->SetCursorPosL( iFirstVisible, EFalse );
}
ResetCurrentItem();
}
}
EXPORT_C void CItemFinder::SetEditor( CEikRichTextEditor** aEditor )
{
iEditor=aEditor;
if ( aEditor && *aEditor && (*aEditor)->TextLength() )
{
TRAP_IGNORE( (*aEditor)->SetHighlightStyleL( EEikEdwinHighlightLink ) );
if ( iAsyncParser )
{
// We are changing the editor used, strange.
delete iAsyncParser;
iAsyncParser = 0;
}
iMarkedArrayComplete = EFalse;
TRAPD( err, iAsyncParser = CItemFinderAsyncParser::NewL( *iEditor, &iFirstVisible, iMinDigitsToFind ) ); // can't signal failure to client.
if ( !err )
{
iAsyncParser->SetCallbackObserver( this );
}
}
}
// From MParser
EXPORT_C TBool CItemFinder::ParseThisText(
const CRichText& aTextObj,
TBool /*aAllowBack*/,
TInt aStartScan,
TInt aScanLength,
TInt& aStartTag,
TInt& aTagLength )
{
TBool ret = EFalse;
if ( iEditor && *iEditor && (*iEditor)->RichText() != &aTextObj )
{
return ret;
}
if ( !iAsyncParser || iAsyncParser->IsActive() || !iAsyncParser->iMarkedItems )
{
return ret; // Asynch parser not ready
}
TInt lastInRange = aStartScan + aScanLength;
aStartTag = lastInRange;
CFindItemEngine::SFoundItem item = { 0, 0 };
HBufC* tag = 0;
TInt engineFlags = EngineFlags();
// Find (next) external item.
CFindItemExt* externalItem = NULL;
if ( iExternalLinks )
{
TInt externalIndex = 0;
while ( externalIndex < iExternalLinks->Count() )
{
CFindItemExt* tmp = iExternalLinks->At( externalIndex );
if ( tmp && ( tmp->iStart >= aStartScan ))
{
externalItem = tmp;
switch( externalItem->iItemType )
{
case EUrlAddress:
item.iItemType = CFindItemEngine::EFindItemSearchURLBin;
break;
case EUriScheme:
item.iItemType = CFindItemEngine::EFindItemSearchScheme;
break;
default: // only EUrlAddress and EUriScheme supported
item.iItemType = (CFindItemEngine::TFindItemSearchCase)0;
break;
}
if(item.iItemType&engineFlags)
{
tag = externalItem->iItemDescriptor->Des().Alloc(); // Null if failed.
item.iStartPos = externalItem->iStart;
item.iLength = externalItem->iEnd - item.iStartPos + 1;
break;
}
}
externalIndex++;
}
}
// Find (next) internal item.
iAsyncParser->iFIE->ResetPosition();
CFindItemEngine::SFoundItem internalItem = { 0, 0 };
if ( iAsyncParser->iFIE->Item( internalItem ) )
{
do
{
if ( ( internalItem.iStartPos >= aStartScan ) && ( internalItem.iItemType & engineFlags ) )
{
CFindItemEngine::SFoundItem scrollItem = { 0, 0 };
while ( iAsyncParser->iFIE->NextItem( scrollItem ) ) // Find longest overridden item.
{
if ( scrollItem.iStartPos == internalItem.iStartPos )
{
if ( internalItem.iLength == scrollItem.iLength )
{
if ( internalItem.iItemType & CFindItemEngine::EFindItemSearchScheme ) // Check if valid scheme.
{
if ( !SchemeSupported( (*iEditor)->Text()->Read( internalItem.iStartPos, internalItem.iLength ) ) )
{
internalItem = scrollItem;
}
}
}
else if ( ( scrollItem.iItemType & engineFlags ) && ( internalItem.iLength < scrollItem.iLength ) )
{
internalItem = scrollItem;
}
else if ( ( scrollItem.iItemType & CFindItemEngine::EFindItemSearchURLBin )
&& ( internalItem.iLength > scrollItem.iLength )
&& !SchemeSupported( (*iEditor)->Text()->Read( internalItem.iStartPos, internalItem.iLength ) ) )
{
// this is because URL is included in URI scheme
internalItem = scrollItem;
}
}
else
{
iAsyncParser->iFIE->PrevItem(scrollItem);
break;
}
}
if ( internalItem.iItemType & CFindItemEngine::EFindItemSearchScheme ) // Check if valid scheme.
{
if ( SchemeSupported( (*iEditor)->Text()->Read( internalItem.iStartPos, internalItem.iLength ) ) )
{
break;
}
}
else if ( internalItem.iLength >= MinLengthForItemType( internalItem.iItemType ) ) // Check if valid length.
{
break;
}
}
} while ( iAsyncParser->iFIE->NextItem( internalItem ) );
}
// Use internal item as item.
TBool internalUsed( EFalse );
if ( ( internalItem.iLength >0 ) && (internalItem.iStartPos>=aStartScan) &&( internalItem.iItemType&engineFlags )&& ( !externalItem || ( internalItem.iStartPos + internalItem.iLength - 1 ) < externalItem->iStart ) )
{
item = internalItem;
delete tag; // Allocated for external link.
tag = (*iEditor)->Text()->Read( item.iStartPos, item.iLength ).Alloc(); // Null if failed.
internalUsed = ETrue;
}
// Add item as a marked item.
if ( item.iStartPos >= aStartScan && ( item.iStartPos + item.iLength ) <= lastInRange &&
item.iItemType & engineFlags &&
( ( internalUsed && item.iLength >= MinLengthForItemType( item.iItemType ) ) || !internalUsed ) &&
tag )
{
TBool schemeNotSupported( EFalse );
if ( item.iItemType & CFindItemEngine::EFindItemSearchScheme ) // Check if scheme valid.
{
if ( !SchemeSupported( tag->Des() ) )
{
schemeNotSupported = ETrue;
ret = EFalse;
}
}
if ( !schemeNotSupported ) // Add if valid item
{
aStartTag = item.iStartPos;
aTagLength = item.iLength;
TInt err = KErrNone;
if ( !iMarkedArrayComplete )
{
// Resolve type and tag.
TItemType type = ENoneSelected;
switch( item.iItemType )
{
case CFindItemEngine::EFindItemSearchURLBin:
type = EUrlAddress;
break;
case CFindItemEngine::EFindItemSearchMailAddressBin:
type = EEmailAddress;
break;
case CFindItemEngine::EFindItemSearchPhoneNumberBin:
type = EPhoneNumber;
break;
case CFindItemEngine::EFindItemSearchScheme:
{
type = EUriScheme;
const TDesC& pref = tag->Des().Left( 4 );
if ( pref.CompareF( KHTTPPREFIX().Left( 4 ) ) == 0 || pref.CompareF( RTSP ) == 0 )
{
type = EUrlAddress;
}
}
break;
default:
break;
}
CFindItemExt* newItem = NULL;
TRAP( err, // Non-leaving method
{
newItem = new (ELeave) CFindItemExt();
newItem->iItemType = type;
newItem->iItemDescriptor = tag->Des().AllocL();
newItem->iStart = aStartTag;
newItem->iEnd = aStartTag + aTagLength - 1;
iAsyncParser->iMarkedItems->AppendL( newItem ); // Ownership changed.
newItem = NULL;
} );
delete newItem;
}
if ( !err )
{
ret = ETrue;
}
}
}
delete tag;
if ( !ret || ( ( aStartTag + aTagLength ) == (*iEditor)->TextLength() ) ) // iMarkedList complete
{
iMarkedArrayComplete = ETrue;
}
return ret;
}
TInt CItemFinder::MinLengthForItemType( TInt aItemType )
{
TInt length = KMINTAGLENGTH; // by default
if ( aItemType == CFindItemEngine::EFindItemSearchPhoneNumberBin )
{
length = iMinDigitsToFind; // For phone numbers
}
return length;
}
EXPORT_C const TDesC& CItemFinder::CreateDoItText(
const CRichText& /*aTextObj*/,
TInt /*aStartText*/,
TInt /*aLength*/)
{
return KNullDesC();
}
EXPORT_C void CItemFinder::ActivateThisTextL(
const CRichText& /*aTextObj*/,
TInt /*aStartText*/,
TInt /*aLength*/)
{
// We don't need this
}
EXPORT_C TBool CItemFinder::ReformatOnRecognise() const
{
return ETrue;
}
EXPORT_C TBool CItemFinder::ReformatOnRollover() const
{
return EFalse; // Rollover formating causes too much "unwanted" parsing.
}
EXPORT_C void CItemFinder::GetRecogniseFormat( TCharFormat& aFormat )
{
aFormat.iFontPresentation.iUnderline = EUnderlineOn;
TRgb color( KRgbBlue );
AknsUtils::GetCachedColor( AknsUtils::SkinInstance(), color, KAknsIIDQsnHighlightColors,EAknsCIQsnHighlightColorsCG3 );
aFormat.iFontPresentation.iTextColor = color;
}
EXPORT_C void CItemFinder::GetRolloverFormat( TCharFormat& /*aFormat*/ )
{
}
EXPORT_C TBool CItemFinder::ConfirmCursorOverTag(
const CRichText& /*aTextObj*/,
TInt /*aTagStart*/,
TInt /*aTagLen*/,
TInt /*aCurPos*/)
{
return ETrue;
}
EXPORT_C void CItemFinder::Release()
{
iEditor = 0; // This makes parser to ignore practically all request from outside
}
EXPORT_C void CItemFinder::MParser_Reserved_2()
{
}
EXPORT_C void CItemFinder::ResetCurrentItem()
{
if ( iCurrentItemExt )
{
iCurrentItemExt->iItemType = ENoneSelected;
delete iCurrentItemExt->iItemDescriptor;
iCurrentItemExt->iItemDescriptor = 0;
iCurrentItemExt->iStart = 0;
iCurrentItemExt->iEnd = 0;
}
}
EXPORT_C TInt CItemFinder::PositionOfNextItem( TFindDirection aDirection )
{
if ( iAsyncParser && !iAsyncParser->IsActive() ) // exists only when editor is set
{
// Going down
if ( aDirection != ENextUp )
{
if ( (*iEditor)->CursorPos() == 0 && // check if the first char starts the tag
iCurrentItemExt->iItemType == ENoneSelected &&
iAsyncParser->iMarkedItems &&
iAsyncParser->iMarkedItems->Count() > 0 &&
iAsyncParser->iMarkedItems->At(0)->iStart == 0 )
{
return 0;
}
return (*iEditor)->RichText()->PositionOfNextTag( (*iEditor)->CursorPos(), this );
}
else
{
return (*iEditor)->RichText()->PositionOfPrevTag( (*iEditor)->CursorPos(), this );
}
}
return KErrNotFound;
}
EXPORT_C void CItemFinder::ResolveAndSetItemTypeL( TInt aStart ) // defaults to KErrNotFound
{
if ( aStart != KErrNotFound )
{
iCurrentStart = aStart;
}
ResetCurrentItem(); // Reset item.
if ( !iAsyncParser || iAsyncParser->IsActive() ) // Text not parsed
{
return;
}
iCurrentEnd = iCurrentStart;
TInt count = iAsyncParser->iMarkedItems->Count();
for ( TInt i = 0; i < count; i++ ) // Set item.
{
if ( iAsyncParser->iMarkedItems->At( i )->iStart == iCurrentStart )
{
iCurrentItemExt->iStart = iAsyncParser->iMarkedItems->At( i )->iStart;
iCurrentStart = iCurrentItemExt->iStart;
iCurrentItemExt->iEnd = iAsyncParser->iMarkedItems->At( i )->iEnd;
iCurrentEnd = iCurrentItemExt->iEnd + 1;
if ( iAsyncParser->iMarkedItems->At( i )->iItemDescriptor )
{
delete iCurrentItemExt->iItemDescriptor;
iCurrentItemExt->iItemDescriptor = 0;
iCurrentItemExt->iItemDescriptor = iAsyncParser->iMarkedItems->At( i )->iItemDescriptor->AllocL();
}
DoResolveAndSetItemTypeL( iAsyncParser->iMarkedItems->At( i ) );
break;
}
}
}
EXPORT_C void CItemFinder::AddObserver( MItemFinderObserver& aObserver )
{
iExternalObserver = &aObserver;
}
// Utilities
TInt CItemFinder::EngineFlags()
{
TInt fieFlags( 0 );
if ( iFlags & EUrlAddress )
{
fieFlags |= CFindItemEngine::EFindItemSearchURLBin;
}
if ( iFlags & EEmailAddress )
{
fieFlags |= CFindItemEngine::EFindItemSearchMailAddressBin;
}
if ( iFlags & EPhoneNumber )
{
fieFlags |= CFindItemEngine::EFindItemSearchPhoneNumberBin;
}
if ( iFlags & EUrlAddress || iFlags & EUriScheme )
{
fieFlags |= CFindItemEngine::EFindItemSearchScheme;
}
return fieFlags;
}
void CItemFinder::InsertPrefixToUrl()
{
if ( iCurrentItemExt && iCurrentItemExt->iItemType == EUrlAddress )
{
const TDesC& pref = iCurrentItemExt->iItemDescriptor->Des().Left( 4 );
if ( pref.CompareF( KHTTPPREFIX().Left( 4 ) ) == 0 || pref.CompareF( RTSP ) == 0 )
{
return; // prefix already exists.
}
HBufC* tmp = iCurrentItemExt->iItemDescriptor->ReAlloc( iCurrentItemExt->iItemDescriptor->Length() + KHTTPPREFIX().Length() );
if ( tmp )
{
iCurrentItemExt->iItemDescriptor = tmp;
iCurrentItemExt->iItemDescriptor->Des().Insert( 0, KHTTPPREFIX );
}
}
}
TBool CItemFinder::SchemeSupported( const TDesC& aScheme )
{
if ( aScheme.Left( KTELPREFIX().Length() ).CompareF( KTELPREFIX ) == 0 )
{
if ( CommonPhoneParser::IsValidPhoneNumber( aScheme.Mid( 4 ), CommonPhoneParser::EPlainPhoneNumber) )
{
return EFalse; // will be handled as pure phone number later on.
}
}
if ( iFlags & EUrlAddress || iFlags & EUriScheme )
{
TInt schLength = aScheme.Locate( ':' );
if ( schLength > 0 )
{
TInt suppCount = iSchemeResolver->SupportedSchemes().Count();
for ( TInt i = 0; i < suppCount; i++ )
{
if ( aScheme.Length() >= schLength && iSchemeResolver->SupportedSchemes().At(i)->Des().CompareF( aScheme.Left( schLength ) ) == 0)
{
return ETrue;
}
}
}
}
return EFalse;
}
TBool CItemFinder::CallbackToExtObserver()
{
if ( iExternalObserver )
{
iExternalObserver->HandleParsingComplete();
return ETrue;
}
return EFalse;
}
EXPORT_C TBool CItemFinder::ItemWasTappedL( const TPoint aTappedPoint )
{
if ( !iAsyncParser || iAsyncParser->IsActive() )
{
return EFalse;
}
TInt pos = 0;
TInt len = (*iEditor)->TextLayout()->PosRangeInBand( pos );
TRect rect;
TInt i = 0;
while ( i < iAsyncParser->iMarkedItems->Count() ) // Check visible items
{
TInt end = iAsyncParser->iMarkedItems->At( i )->iEnd;
if ( end < pos )
{
i++;
continue; // Item not visible.
};
TInt start = iAsyncParser->iMarkedItems->At( i )->iStart;
if ( start >= ( pos + len ) )
{
break; // Item not visible.
}
if( end >= ( pos + len ) )
{
end = pos + len - 1;
}
TInt lastLine = (*iEditor)->TextLayout()->GetLineNumber( end );
TInt nextLine = 0;
TInt lastPos = start;
do // Check all rects of one item.
{
rect = (*iEditor)->TextLayout()->GetLineRectL( start, end );
if ( rect.Contains( aTappedPoint ) ) // Item rect tapped.
{
iFirstVisible = (*iEditor)->TextLayout()->FirstDocPosFullyInBand();
ResetCurrentItem();
iCurrentItemExt->iStart = iAsyncParser->iMarkedItems->At( i )->iStart;
iCurrentStart = iCurrentItemExt->iStart;
iCurrentItemExt->iEnd = iAsyncParser->iMarkedItems->At( i )->iEnd;
iCurrentEnd = iCurrentItemExt->iEnd + 1;
DoResolveAndSetItemTypeL( iAsyncParser->iMarkedItems->At( i ) );
(*iEditor)->SetSelectionL( iCurrentEnd, iCurrentStart );
return ETrue; // Hit
}
TPoint midPoint( rect.iBr.iX, ( rect.iBr.iY + rect.iTl.iY ) / 2 );
lastPos = (*iEditor)->TextLayout()->XyPosToDocPosL( midPoint );
start = lastPos + 1;
nextLine = (*iEditor)->TextLayout()->GetLineNumber( lastPos );
} while ( nextLine != lastLine );
i++;
}
return EFalse; // No hit
}
void CItemFinder::DoResolveAndSetItemTypeL( const CFindItemExt* aItem )
{
if ( aItem )
{
iCurrentItemExt->iItemType = aItem->iItemType;
if ( aItem->iItemType != ENoneSelected && iCurrentEnd >= iCurrentStart )
{
if ( !iCurrentItemExt->iItemDescriptor )
{
iCurrentItemExt->iItemDescriptor = aItem->iItemDescriptor->AllocL();
}
if ( iCurrentItemExt->iItemType == EUrlAddress )
{
InsertPrefixToUrl(); // old url types need prefix in order to work w/ schemehandler
}
if ( iCurrentItemExt->iItemType == EUriScheme )
{
// some schemes (ie. "old ones") have special handling
const TDesC& pref = iCurrentItemExt->iItemDescriptor->Des().Left( 4 );
if ( pref.CompareF( KHTTPPREFIX().Left( 4 ) ) == 0 || pref.CompareF( RTSP ) == 0 )
{
iCurrentItemExt->iItemType = EUrlAddress;
}
}
}
}
}
EXPORT_C TInt CItemFinder::SetExternalLinks( CArrayPtrFlat<CFindItemExt>* aLinks )
{
TInt error = KErrNone;
if ( iExternalLinks ) // Remove existing links.
{
iExternalLinks->ResetAndDestroy();
delete iExternalLinks;
iExternalLinks = 0;
}
// Add an external link validated by engine
TInt linkCount = aLinks ? aLinks->Count() : 0;
if ( linkCount > 0 )
{
iExternalLinks = new CArrayPtrFlat<CItemFinder::CFindItemExt>( linkCount );
if ( !iExternalLinks ) // Error: no memory.
{
return EFalse;
}
CFindItemEngine* fie = NULL; // For validation.
TInt linkIndex = 0;
do
{
CFindItemExt* link = aLinks->At( linkIndex++ );
TInt flag = 0;
switch ( link->iItemType )
{
case EUrlAddress:
flag = CFindItemEngine::EFindItemSearchURLBin;
break;
case EUriScheme:
if ( !SchemeSupported( link->iItemDescriptor->Des() ) )
{
continue;
}
flag = CFindItemEngine::EFindItemSearchScheme;
break;
default: // Ignore unsupported types.
continue;
}
if ( !fie )
{
TRAP( error, fie = CFindItemEngine::NewL( link->iItemDescriptor->Des(), (CFindItemEngine::TFindItemSearchCase)flag ) );
}
else
{
TRAP( error, fie->DoNewSearchL( link->iItemDescriptor->Des(), (CFindItemEngine::TFindItemSearchCase)flag ) );
}
if ( error != KErrNone ) // Error: find engine fails.
{
iExternalLinks->ResetAndDestroy();
delete iExternalLinks;
iExternalLinks = 0;
delete fie;
return EFalse;
}
if ( fie->ItemCount() ) // Link was found.
{
CFindItemEngine::SFoundItem item = fie->ItemArray()->At( 0 );
const TDesC& text = link->iItemDescriptor->Des().Mid( item.iStartPos, item.iLength );
if ( link->iItemDescriptor->Des().CompareF( text ) == 0 )
{
CFindItemExt* newItem = 0;
newItem = new CFindItemExt();
error = KErrNoMemory;
if ( newItem )
{
newItem->iItemDescriptor = link->iItemDescriptor->Alloc();
if ( newItem->iItemDescriptor )
{
newItem->iItemType = link->iItemType;
newItem->iStart = link->iStart;
newItem->iEnd = link->iEnd;
error = KErrNone;
TRAP( error, iExternalLinks->AppendL( newItem ) );
}
}
if ( error != KErrNone ) // Error: cannot set ext. links.
{
iExternalLinks->ResetAndDestroy();
delete iExternalLinks;
iExternalLinks = 0;
delete newItem->iItemDescriptor;
delete newItem;
delete fie;
return EFalse;
}
}
}
}
while ( linkIndex < linkCount );
delete fie;
}
error = RefreshEditor(); // With ext. links.
if ( error != KErrNone )
{
iExternalLinks->ResetAndDestroy();
delete iExternalLinks;
iExternalLinks = 0;
(void)RefreshEditor();
}
return error;
}
EXPORT_C CItemFinder::CFindItemExt& CItemFinder::CurrentItemExt()
{
return *iCurrentItemExt;
}
EXPORT_C TPtrC CItemFinder::CurrentSelection()
{
if ( iEditor && *iEditor ) // if editor used.
{
return (*iEditor)->Text()->Read( (*iEditor)->Selection().LowerPos(), (*iEditor)->Selection().Length() );
}
else
{
HBufC* buffer = CurrentItemExt().iItemDescriptor;
if ( buffer )
{
return *buffer;
}
else
{
return KNullDesC();
}
}
}
TInt CItemFinder::RefreshEditor()
{
TInt error = KErrNone;
TRAP( error, // Non-leaving method.
{
if ( iAsyncParser )
{
iFirstVisible = (*iEditor)->TextLayout()->FirstDocPosFullyInBand();
iMarkedArrayComplete = EFalse;
if ( iAsyncParser->iMarkedItems )
{
iAsyncParser->iMarkedItems->ResetAndDestroy();
}
(*iEditor)->RefreshParsersL();
(*iEditor)->SetCursorPosL( 0, EFalse );
ResolveAndSetItemTypeL( iFirstVisible );
(*iEditor)->SetCursorPosL( iFirstVisible, EFalse );
iPreviousDirection = ENextDown;
NextItemOrScrollL( EInit );
}
else if ( (*iEditor)->TextLength() )
{
iMarkedArrayComplete = EFalse;
iAsyncParser = CItemFinderAsyncParser::NewL( *iEditor, &iFirstVisible, iMinDigitsToFind );
iAsyncParser->SetCallbackObserver( this );
}
} ); // TRAP
return error;
}
// End of File