--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/uifw/AvKon/src/aknpopupfader.cpp	Tue Feb 02 01:00:49 2010 +0200
@@ -0,0 +1,284 @@
+/*
+* Copyright (c) 2002 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: 
+*
+*/
+
+// AknPopupFader.cpp
+//
+// Copyright (c) 1997-2001 Symbian Ltd.  All rights reserved.
+//
+
+#include "AknPopupFader.h"
+
+#include <coecntrl.h>
+#include <eikdef.h>
+#include <coemain.h>
+#include <eikon.hrh>
+#include <eikenv.h>
+#include <aknappui.h>
+#include <w32std.h>
+#include <eikdialg.h>
+#include <AknSgcc.h>
+
+const TUid KUidFadeStackTls = {0x101f760b};
+const TInt KFadeStackGranularity = 4;
+
+EXPORT_C TInt MAknFadedComponent::CountFadedComponents()
+	{
+	return 0;
+	}
+
+EXPORT_C CCoeControl* MAknFadedComponent::FadedComponent(TInt /*aIndex*/)
+	{
+	return NULL;
+	}
+
+
+NONSHARABLE_CLASS(CAknFadeStack) : public CCoeStatic, public MCoeForegroundObserver
+	{
+public:
+    enum TStackPosition
+        {
+        EStackTop = 0,
+        EStackNextToTop
+        };
+public:
+	static void CreateL();
+	static CAknFadeStack* Static();
+
+	void PushPopupFaderL(MAknFadedComponent* aPopup);
+	void PopPopupFader(MAknFadedComponent* aPopup);
+
+private:
+	CAknFadeStack();
+	~CAknFadeStack();
+	void ConstructL();
+	void SetComponentFaded(MAknFadedComponent* aPopup, TBool aFade);
+	MAknFadedComponent* PopupFader(TStackPosition aPosition) const;
+    TBool IsFullscreenDialog(MAknFadedComponent* aPopup);
+	void SetFade();
+	void RemovePopupFader(MAknFadedComponent* aPopup);
+    void SetSystemFadeOff();
+    
+private: // from MCoeForegroundObserver
+	void HandleGainingForeground();
+	void HandleLosingForeground();
+
+private:
+	CArrayFixFlat<MAknFadedComponent*>* iFadeStack;
+	TBool iIsForeground;
+	CCoeEnv* iCoeEnv;
+	TBool iSystemFaded;
+	};
+
+CAknFadeStack::CAknFadeStack()
+: CCoeStatic(KUidFadeStackTls), iCoeEnv(CCoeEnv::Static())
+	{
+	    iSystemFaded = EFalse;
+	}
+
+CAknFadeStack::~CAknFadeStack()
+	{
+	iCoeEnv->RemoveForegroundObserver(*this);
+	delete iFadeStack;
+	}
+
+void CAknFadeStack::ConstructL()
+	{
+	iFadeStack = new(ELeave) CArrayFixFlat<MAknFadedComponent*>(KFadeStackGranularity);
+	iCoeEnv->AddForegroundObserverL(*this);
+	}
+
+CAknFadeStack* CAknFadeStack::Static()
+	{
+	return static_cast<CAknFadeStack*>(CCoeEnv::Static(KUidFadeStackTls));
+	}
+
+void CAknFadeStack::CreateL()
+	{ // static
+	CAknFadeStack* self=CAknFadeStack::Static();
+	if (!self)
+		{
+		self=new(ELeave) CAknFadeStack(); // CCoeEnv takes ownership immediately
+		CleanupStack::PushL(self);
+		self->ConstructL();
+		CleanupStack::Pop();
+		}
+	}
+
+void CAknFadeStack::HandleGainingForeground()
+	{
+	iIsForeground = ETrue;
+	SetFade();
+	}
+
+void CAknFadeStack::HandleLosingForeground()
+	{
+	iIsForeground = EFalse;
+	iSystemFaded = EFalse;
+    SetFade();
+	}
+
+void CAknFadeStack::PushPopupFaderL(MAknFadedComponent* aPopup)
+	{
+	RemovePopupFader(aPopup);
+	iFadeStack->AppendL(aPopup);
+	SetFade();
+	}
+
+void CAknFadeStack::PopPopupFader(MAknFadedComponent* aPopup)
+	{
+	RemovePopupFader(aPopup);
+	SetFade();
+	}
+
+void CAknFadeStack::RemovePopupFader(MAknFadedComponent* aPopup)
+	{
+	TInt end = iFadeStack->Count() - 1;
+	for (TInt ii=end; ii>=0; ii--)
+		{
+		if (iFadeStack->At(ii) == aPopup)
+			iFadeStack->Delete(ii);
+		}
+	}
+
+void CAknFadeStack::SetSystemFadeOff()
+    {
+    if ( iSystemFaded || CAknSgcClient::IsSystemFaded() )
+        {
+        CAknAppUi* appUi = iAvkonAppUi;
+        TRAP_IGNORE( appUi->SetFadedL(EFalse) );
+        iSystemFaded = EFalse;
+        }
+    }
+
+void CAknFadeStack::SetComponentFaded(MAknFadedComponent* aPopup, TBool aFade)
+	{
+	TInt count = aPopup->CountFadedComponents();
+	for (TInt ii=0; ii<count; ii++)
+		{
+		CCoeControl* control = aPopup->FadedComponent(ii);
+		//fix for TSW error EHLN-7HHFPX
+		if ( control != NULL )
+		    {
+		    control->DrawableWindow()->SetFaded(aFade, RWindowTreeNode::EFadeIncludeChildren);    
+		    }
+		}
+	}
+
+TBool CAknFadeStack::IsFullscreenDialog(MAknFadedComponent* aPopup)
+{
+	TInt count = aPopup->CountFadedComponents();
+	for (TInt ii=0; ii<count; ii++)
+		{
+		CCoeControl* control = aPopup->FadedComponent(ii);
+	    CEikDialog* dialg = NULL;
+	    //fix for TSW error EHLN-7HHFPX
+	    if ( control != NULL )
+	        {
+	        dialg = control->MopGetObjectNoChaining(dialg);
+	        if(dialg != NULL)
+	            {
+	            // is a dialog, get flags
+	            TInt flags = dialg->DialogFlags();
+	            if ((flags&EEikDialogFlagFillAppClientRect) || (flags&EEikDialogFlagFillScreen) || (flags&EEikDialogFlagNoBackgroundFade) )
+	                {
+	                return ETrue;
+	                }
+	            }    
+	        }
+		}
+    return EFalse;
+}
+
+MAknFadedComponent* CAknFadeStack::PopupFader(TStackPosition aPosition) const
+    {
+    TInt count = iFadeStack->Count();
+    return count > aPosition ? iFadeStack->At(count-1-aPosition) : NULL;
+    }
+
+void CAknFadeStack::SetFade()
+	{
+	MAknFadedComponent* top = PopupFader(EStackTop);
+	CAknAppUi* appUi = iAvkonAppUi;
+
+	if (iIsForeground || appUi->IsForeground())
+		{
+		if(top) 
+		    {
+		    if(!IsFullscreenDialog(top))
+		        {
+    		    if(!iSystemFaded)
+	    	        {
+    		        TRAP_IGNORE( appUi->SetFadedL(ETrue) );
+	    	        iSystemFaded = ETrue;
+		            }
+		        else
+    		        {
+    		        // If a popup comes on top of another, system fade is not
+    		        // called but the previous top popup is faded
+    		        MAknFadedComponent* prevTop = PopupFader(EStackNextToTop);
+                    if (prevTop)
+                        {
+                        SetComponentFaded(prevTop, ETrue);
+                        }
+	    	        }
+    			SetComponentFaded(top, EFalse);
+		        }
+		    else
+		        {
+                // Remove fading for fullscreen dialogs		            
+                SetSystemFadeOff();                		            
+	    	    }
+		    }
+		else
+		    {
+            SetSystemFadeOff();
+		    }
+		}
+	else if (top)
+		{
+		SetComponentFaded(top, appUi->IsFaded());
+		}
+	}
+
+
+EXPORT_C void TAknPopupFader::FadeBehindPopup(MAknFadedComponent* aComponent,  CCoeControl* aParent, TBool aFade)
+	{
+	TRAP_IGNORE(FadeBehindPopupL(aComponent, aParent, aFade));
+	}
+
+void TAknPopupFader::FadeBehindPopupL(MAknFadedComponent* aComponent,  CCoeControl* /*aParent*/, TBool aFade)
+	{
+	CAknFadeStack* stack=CAknFadeStack::Static();
+	if (stack)
+		{
+		if (aFade)
+			{
+			stack->PushPopupFaderL(aComponent);
+			}
+		else
+			{
+			stack->PopPopupFader(aComponent);
+			}
+		}
+	}
+
+void TAknPopupFader::CreateStaticL()
+	{
+	CAknFadeStack::CreateL();
+	}
+
+// End of File