--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/wvuing/wvuiave/AppSrc/CCAMessageEditor.cpp Wed Sep 01 12:31:13 2010 +0100
@@ -0,0 +1,538 @@
+/*
+* Copyright (c) 2006 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: Chat client's editor.
+*
+*/
+
+
+// INCLUDE FILES
+#include "CCAMessageEditor.h"
+#include "ChatDefinitions.h"
+#include "CCAMessageExtensionsHandler.h"
+#include "IMUtils.h"
+#include "IMDialogUtils.h"
+#include "mcatapeventobserver.h"
+
+#include <eikenv.h>
+#include <aknutils.h>
+#include <txtrich.h> // CRichText
+#include <chatNG.rsg>
+#include <eikon.rsg> // R_EIK_EDWIN_CTRL_HOTKEYS & R_EIK_EDWIN_SHIFT_CTRL_HOTKEYS
+#include <AknsBasicBackgroundControlContext.h>
+#include "CCAEditIndicator.h"
+
+// The Settings have been moved to Cenrep (also retained in the Resource file),
+// so the enums for keys and central repository header is added here
+#include "VariantKeys.h"
+// CONSTANTS
+
+// TKeyEvent.iCode limit for hotkeys, see DoOfferKeyEvenL in eikedwin.cpp
+const TInt KChatKeyEventHotkeyLimit = 100;
+// Buffer descriptor size for
+// R_EIK_EDWIN_CTRL_HOTKEYS & R_EIK_EDWIN_SHIFT_CTRL_HOTKEYS
+// see DoOfferKeyEvenL in eikedwin.cpp
+const TInt KChatResourceBufferSize = 24;
+
+// Amount of extra characters every smiley takes in the editor
+const TInt KChatAddCharsPerSmiley = 2;
+
+// ================= MEMBER FUNCTIONS =======================
+
+// C++ default constructor can NOT contain any code, that
+// might leave.
+//
+CCAMessageEditor::CCAMessageEditor(
+ CCAMessageExtensionsHandler& aMessageHandler )
+ : iMessageHandler( aMessageHandler )
+ {
+ }
+
+// Symbian OS default constructor can leave.
+void CCAMessageEditor::ConstructL( const CCoeControl* aParent, TInt
+ aNumberOfLines, TInt aTextLimit, TInt aEdwinFlags,
+ TInt aFontControlFlags,
+ TInt aFontNameFlags )
+ {
+
+ CEikRichTextEditor::ConstructL( aParent, aNumberOfLines, aTextLimit,
+ aEdwinFlags, aFontControlFlags, aFontNameFlags );
+ }
+
+
+// Destructor
+CCAMessageEditor::~CCAMessageEditor()
+ {
+ delete iBgContext;
+ delete iFgContext;
+ delete iClipboardBuffer;
+ }
+
+// ---------------------------------------------------------
+// CCAMessageEditor::NumberOfLines()
+// This method returns the number of lines if expanded
+// ---------------------------------------------------------
+//
+TInt CCAMessageEditor::NumberOfLines() const
+ {
+ return iNumberOfLines;
+ }
+
+
+// ---------------------------------------------------------
+// CCAMessageEditor::ResetL()
+// This method clears the editor
+// ---------------------------------------------------------
+//
+void CCAMessageEditor::ResetL()
+ {
+ iTextView->EnablePictureFrameL( EFalse );
+ TBuf< KTwo > str;
+ str.Zero();
+ SetCursorPosL( 0, EFalse );
+ SetTextL( &str );
+ HandleTextChangedL();
+ }
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::SetViewRect
+// Set view rect.
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::SetViewRect( const TRect& aRect )
+ {
+ iViewRect = aRect;
+ }
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::OfferKeyEventL
+// -----------------------------------------------------------------------------
+//
+TKeyResponse CCAMessageEditor::OfferKeyEventL( const TKeyEvent& aKeyEvent, TEventCode aType )
+ {
+ if ( aKeyEvent.iScanCode == EStdKeyYes && aType != EEventKey )
+ {
+ return EKeyWasConsumed;
+ }
+
+ TInt oldLen = TextLength();
+
+ if ( TextLength() == MaxLength() )
+ {
+ if ( ( aType == EEventKey &&
+ ( aKeyEvent.iCode != EKeyBackspace &&
+ aKeyEvent.iCode < EKeyDelete )
+ ) ||
+ ( aType == EEventKeyUp &&
+ aKeyEvent.iScanCode >= '0' &&
+ aKeyEvent.iScanCode <= '9'
+ )
+ )
+ {
+ HBufC* prompt = iEikonEnv->AllocReadResourceLC(
+ R_QTN_CHAT_MAXIMUM_MESSAGE_LENGTH );
+ IMDialogUtils::DisplayInformationNoteL(
+ *prompt );
+ CleanupStack::PopAndDestroy( prompt );
+
+ return EKeyWasConsumed;
+ }
+ }
+
+ TKeyResponse res = EKeyWasNotConsumed;
+
+ // --------------------
+ // This logic comes from CEikEdwin
+ // We need to handle hot keys cut and copy
+ TBool select = aKeyEvent.iModifiers & EModifierShift;
+ TBool magnify = aKeyEvent.iModifiers & EModifierCtrl;
+ if ( magnify && aKeyEvent.iCode < KChatKeyEventHotkeyLimit
+ && aKeyEvent.iCode != ' ' )
+ {
+ TBuf<KChatResourceBufferSize> buf;
+ if ( select )
+ {
+ iCoeEnv->ReadResourceL( buf, R_EIK_EDWIN_SHIFT_CTRL_HOTKEYS );
+ }
+ else
+ {
+ iCoeEnv->ReadResourceL( buf, R_EIK_EDWIN_CTRL_HOTKEYS );
+ }
+
+ const TInt ret = buf.Locate( TChar( aKeyEvent.iCode + 'a' - 1 ) );
+ switch ( ret )
+ {
+ case EHotKeyCut:
+ {
+ CcpuCutL();
+ res = EKeyWasConsumed;
+ break;
+ }
+ case EHotKeyCopy:
+ {
+ CcpuCopyL();
+ res = EKeyWasConsumed;
+ break;
+ }
+ default:
+ {
+ // No need to handle other hot keys here
+ break;
+ }
+ }
+ }
+ // --------------------
+
+ if ( res != EKeyWasConsumed )
+ {
+ res = CEikRichTextEditor::OfferKeyEventL( aKeyEvent, aType );
+ }
+
+ NotifyObserverIfNeededL( oldLen, TextLength() );
+
+ return res;
+ }
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::HandlePointerEventL
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::HandlePointerEventL(
+ const TPointerEvent& aPointerEvent )
+ {
+ TBool eventConsumed = EFalse;
+ if ( aPointerEvent.iType == TPointerEvent::EButton1Down )
+ {
+ // Select smiley if user taps on it
+ TRect pictRect;
+ TPoint pointerPos( aPointerEvent.iPosition );
+ if ( iTextView->GetPictureRectangleL( pointerPos, pictRect ) )
+ {
+ eventConsumed = ETrue;
+ TInt pos = iTextView->XyPosToDocPosL( pointerPos );
+ SetSelectionL( pos, pos + 1 );
+ IgnoreEventsUntilNextPointerUp();
+ }
+ }
+
+ // If user didn't start stylus down event on smiley,
+ // forward all events to base class
+ if ( !eventConsumed )
+ {
+ CEikRichTextEditor::HandlePointerEventL( aPointerEvent );
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::CcpuCutL
+// Handle cut
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::CcpuCutL()
+ {
+ if ( Selection().Length() == 0 )
+ {
+ return;
+ }
+
+ TInt oldLen = TextLength();
+
+ // Set up buffer
+ ConstructAndSetUpClipboardBufferL();
+
+ // Perform cut in buffer
+ iClipboardBuffer->CcpuCutL();
+
+ // Delete selection from UI
+ TCursorSelection curSel = Selection();
+ TInt delLen = curSel.Length();
+ RichText()->DeleteL( curSel.LowerPos(), delLen );
+ // Create selection for HandleInsertDeleteL
+ TInt delStart = Min( curSel.iAnchorPos, curSel.iCursorPos );
+ TCursorSelection delSel( delStart, delStart );
+ TextView()->HandleInsertDeleteL( delSel, delLen );
+ ClearSelectionL();
+
+ // Set limit to new. Because smileys take 2-3 characters in string format
+ // so we have to multiply picture count with extra character count to get
+ // possible limit.
+ SetTextLimit( IMUtils::MaxMsgLength() - ( RichText()->PictureCount() *
+ KChatAddCharsPerSmiley ) );
+
+ NotifyObserverIfNeededL( oldLen, TextLength() );
+ }
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::CcpuCopyL
+// Handle copy
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::CcpuCopyL()
+ {
+ // Set up buffer
+ ConstructAndSetUpClipboardBufferL();
+
+ // Perform copy in buffer
+ iClipboardBuffer->CcpuCopyL();
+ }
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::CcpuPasteL
+// Handle paste
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::CcpuPasteL()
+ {
+ TInt oldLen = TextLength();
+
+ // Take original cursorpos in memory
+ TInt pos = CursorPos();
+
+ // Paste
+ CEikRichTextEditor::CcpuPasteL();
+
+ // Select changed part so we can check it for extensions
+ SetSelectionL( pos, CursorPos() );
+
+ // Convert strings to extensions
+ iMessageHandler.ConvertSelectionToExtensionL( *this );
+
+ // Update cursor position.
+ SetCursorPosL( Selection().HigherPos(), EFalse );
+
+ NotifyObserverIfNeededL( oldLen, TextLength() );
+ }
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::SetupSkinContextL
+// Enable skinning
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::SetupSkinContextL( TBool aForceUpdate /*= EFalse*/ )
+ {
+ TRect screen( 0, 0, 0, 0 );
+
+ AknLayoutUtils::LayoutMetricsRect( AknLayoutUtils::EScreen, screen );
+
+ // If update forced, delete previous skin contexts
+ if ( aForceUpdate )
+ {
+ delete iBgContext;
+ iBgContext = NULL;
+ delete iFgContext;
+ iFgContext = NULL;
+ }
+
+ if ( !iFgContext && !iBgContext )
+ {
+ iBgContext = CAknsBasicBackgroundControlContext::NewL(
+ KAknsIIDQsnBgAreaMain, screen, EFalse );
+ iFgContext = CAknsBasicBackgroundControlContext::NewL(
+ KAknsIIDQsnFrInputCenter, screen, EFalse );
+ iFgContext->SetParentContext( iBgContext );
+ }
+ else
+ {
+ iFgContext->SetRect( screen );
+ }
+
+ SetSkinBackgroundControlContextL( iFgContext );
+ }
+
+TTypeUid::Ptr CCAMessageEditor::MopSupplyObject( TTypeUid aId )
+ {
+ if ( aId.iUid == MAknsControlContext::ETypeId )
+ {
+ return MAknsControlContext::SupplyMopObject( aId, iFgContext );
+ }
+ return CEikRichTextEditor::MopSupplyObject( aId );
+ }
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::RefreshEditorL
+// Called to force refresh of editor contents after inserting a smiley
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::RefreshEditorL()
+ {
+ iTextView->HandleCharEditL( CTextLayout::EFCharacterInsert );
+ }
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::SetTapObserver
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::SetTapObserver( MCATapEventObserver* aObserver, TUint aId )
+ {
+ iTapObserver = aObserver;
+ iTapControlId = aId;
+ }
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::SetMessageEditorObserver
+// Called to force refresh of editor contents after inserting a smiley
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::SetMessageEditorObserver( MCAMessageEditorObserver* aObserver )
+ {
+ iEditorObserver = aObserver;
+ }
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::NotifyObserverIfNeededL
+// Called to force refresh of editor contents after inserting a smiley
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::NotifyObserverIfNeededL( TInt aOldLen, TInt aCurLen )
+ {
+ if ( iEditorObserver )
+ {
+ if ( !iEditIndicatorActiveObj )
+ {
+ TInt editorFlags = 0;
+
+ if ( !aCurLen )
+ {
+ //dont show the edit indicator if editor is empty
+ editorFlags = ( AknEdwinFlags() | EAknEditorFlagNoEditIndicators );
+ }
+ else
+ {
+ //show the edit indicator if editor is non-empty
+ TInt editorFlags = ( AknEdwinFlags() & ~EAknEditorFlagNoEditIndicators );
+ }
+
+ SetAknEditorFlags( editorFlags );
+ }
+ if ( aCurLen == 0 && aOldLen > 0 )
+ {
+ iEditorObserver->HandleMessageEditorEventL(
+ MCAMessageEditorObserver::EEditorContentCleared );
+ return;
+ }
+ if ( aOldLen == 0 && aCurLen > 0 )
+ {
+ iEditorObserver->HandleMessageEditorEventL(
+ MCAMessageEditorObserver::EEditorFirstContentAdded );
+ return;
+ }
+ }
+ }
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::EditObserver
+// Ignored to prevent odd scrolling
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::EditObserver( TInt /* aStartEdit */, TInt /* aEditLength */ )
+ {
+ // ignored to prevent odd scrolling
+ }
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::ConstructAndSetUpClipboardBufferL
+// Construct if needed and set up clipboard buffer
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::ConstructAndSetUpClipboardBufferL()
+ {
+ if ( !iClipboardBuffer )
+ {
+ // Not yet created, instantiate now
+ iClipboardBuffer = new( ELeave ) CEikEdwin();
+ iClipboardBuffer->ConstructL( AknEdwinFlags() | CEikEdwin::EOwnsWindow,
+ 1,
+ IMUtils::MaxMsgLength(),
+ 1 );
+ iClipboardBuffer->SetContainerWindowL( *Parent() );
+ //iClipboardBuffer->ActivateL();
+ iClipboardBuffer->CreateTextViewL();
+ iClipboardBuffer->MakeVisible( EFalse );
+ }
+ else
+ {
+ // Clear buffer
+ TInt textLen = iClipboardBuffer->TextLength();
+ iClipboardBuffer->Text()->DeleteL( 0, textLen );
+ TCursorSelection delSel( 0, 0 );
+ iClipboardBuffer->TextView()->HandleInsertDeleteL( delSel, textLen );
+ }
+
+ // Get converted text
+ TCursorSelection copySel;
+ HBufC* plainText = HBufC::NewLC( IMUtils::MaxMsgLength() );
+ TPtr ptr( plainText->Des() );
+ iMessageHandler.ConvertSelectionToStringL( *this, ptr, copySel, EFalse );
+
+ // Insert only selected text to buffer
+ HBufC* copiedText =
+ plainText->Mid( copySel.LowerPos(), copySel.Length() ).AllocLC();
+ iClipboardBuffer->SetTextL( copiedText );
+ CleanupStack::PopAndDestroy( 2, plainText );
+ // Select whole buffer
+ iClipboardBuffer->SelectAllL();
+ }
+
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::ShowIndicator
+// Construct if needed and set up clipboard buffer
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::ShowIndicator()
+ {
+ TInt editorFlags = ( AknEdwinFlags() & ~EAknEditorFlagNoEditIndicators );
+ SetAknEditorFlags( editorFlags );
+ }
+
+
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::HideIndicator
+// Construct if needed and set up clipboard buffer
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::HideIndicator()
+ {
+ if ( !TextLength() )
+ {
+ TInt editorFlags = ( AknEdwinFlags() | EAknEditorFlagNoEditIndicators );
+ SetAknEditorFlags( editorFlags );
+ }
+ }
+
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::SetActiveObject
+// Construct if needed and set up clipboard buffer
+// -----------------------------------------------------------------------------
+//
+
+void CCAMessageEditor::SetActiveObject( CCAEditIndicator* aActiveObject )
+ {
+ iEditIndicatorActiveObj = aActiveObject;
+ }
+
+
+// -----------------------------------------------------------------------------
+// CCAMessageEditor::ReSetActiveObject
+// Construct if needed and set up clipboard buffer
+// -----------------------------------------------------------------------------
+//
+void CCAMessageEditor::ReSetActiveObject()
+ {
+ iEditIndicatorActiveObj = NULL;
+ }
+
+// End of File