diff -r 053c6c7c14f3 -r 0efa10d348c0 hsappkeyhandler/src/hsappkeyplugin.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hsappkeyhandler/src/hsappkeyplugin.cpp	Tue Aug 31 15:30:51 2010 +0300
@@ -0,0 +1,197 @@
+/*
+* Copyright (c) 2007-2009 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:  Main plugin class
+ *
+*/
+
+
+#include <w32std.h>
+#include <eikenv.h>
+#include <apgtask.h>
+#include <apgcli.h>
+#include <e32property.h>
+#include <hb/hbcore/hbdevicedialogsymbian.h>
+#include <hb/hbcore/hbsymbianvariant.h> 
+#include <tspropertydefs.h>
+#include <afactivitylauncher.h>
+#include <homescreendomainpskeys.h>
+#include "hsappkeyplugin.h"
+
+_LIT(KHsActivactionUri, "appto://20022F35?activityname=HsIdleView");
+_LIT(KAppLibActivactionUri, "appto://20022F35?activityname=AppLibMainView");
+_LIT(KTsPluginName, "com.nokia.taskswitcher.tsdevicedialogplugin/1.0");
+
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+CHsAppKeyPlugin::CHsAppKeyPlugin()
+: iEikEnv( CEikonEnv::Static() )
+{
+}
+
+// ---------------------------------------------------------------------------
+// Two-phased constructor.
+// ---------------------------------------------------------------------------
+//
+CHsAppKeyPlugin* CHsAppKeyPlugin::NewL()
+{
+    CHsAppKeyPlugin* self = new (ELeave) CHsAppKeyPlugin;
+    return self;
+}
+    
+// ---------------------------------------------------------------------------
+// C++ Destructor
+// ---------------------------------------------------------------------------
+//
+CHsAppKeyPlugin::~CHsAppKeyPlugin()
+{
+    delete mDialog;
+}
+
+// ---------------------------------------------------------------------------
+// From MHbDeviceDialogObserver
+// 
+// ---------------------------------------------------------------------------
+//
+void CHsAppKeyPlugin::DataReceived(CHbSymbianVariantMap& /*aData*/)
+{
+    //no implementation required
+}
+
+// ---------------------------------------------------------------------------
+// From MHbDeviceDialogObserver
+// 
+// ---------------------------------------------------------------------------
+//
+void CHsAppKeyPlugin::DeviceDialogClosed(TInt /*aCompletionCode*/)
+{
+    delete mDialog;
+    mDialog = 0;
+}
+
+// ---------------------------------------------------------------------------
+// From CSysapKeyHandlerPlugin
+// 
+// ---------------------------------------------------------------------------
+//
+TKeyResponse CHsAppKeyPlugin::HandleKeyEventL(const TKeyEvent &aKeyEvent, 
+                                              TEventCode /*aType*/)
+{
+    TKeyResponse retVal(EKeyWasNotConsumed);
+    if (aKeyEvent.iCode == EKeyApplication0) {
+        if (iSecondEvent) {
+            if (aKeyEvent.iRepeats > 0)
+                HandleLongPressL();
+            else 
+                HandleShortPressL();
+            retVal = EKeyWasConsumed;
+        }
+        iSecondEvent = !iSecondEvent; 
+    }
+    return retVal;
+}
+
+// ---------------------------------------------------------------------------
+// From CSysapKeyHandlerPlugin
+// 
+// ---------------------------------------------------------------------------
+//
+void CHsAppKeyPlugin::ProvideKeyEventsL(RArray<TKeyEvent>& aKeyEventArray) 
+{
+    TKeyEvent key;
+    key.iCode = EKeyApplication0;
+    key.iScanCode = EStdKeyApplication0;
+    key.iModifiers = 0;
+    key.iRepeats = 0;
+    aKeyEventArray.Append(key);
+    
+    TKeyEvent longkey;
+    longkey.iCode = EKeyApplication0;
+    longkey.iScanCode = EStdKeyApplication0;
+    longkey.iModifiers = 0;
+    longkey.iRepeats = 1;
+    aKeyEventArray.Append(longkey);
+
+}
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CHsAppKeyPlugin::HandleShortPressL()
+{   
+    TInt value(0);
+    RProperty::Get(TsProperty::KCategory, TsProperty::KVisibilityKey, value);
+    if (value) {
+        // when Task Switcher dialog is visible, Appkey is used to dismiss it
+    
+        // @todo: remove notification through property when SharedDialog flag
+        // is implemented in Orbit.
+        if (!mDialog) {
+            // dismiss dialog launched from HomeScreen
+            User::LeaveIfError(RProperty::Set(TsProperty::KCategory, TsProperty::KDismissRequestKey, 1));
+        } else {
+            // dismiss dialog launched by this plugin
+            delete mDialog;
+            mDialog = 0;
+        }
+    } else {
+        // when there is no Task Switcher dialog, Appkey is used to switch between Applib and HomeScreen
+        RApaLsSession apaLsSession;
+        CleanupClosePushL(apaLsSession);
+        User::LeaveIfError(apaLsSession.Connect());
+        CAfActivityLauncher *activityEnabler = 
+            CAfActivityLauncher::NewLC(apaLsSession, 
+                                       iEikEnv->WsSession());
+        TInt state(0);
+        RProperty::Get(KHsCategoryUid, KHsCategoryStateKey, state);
+        if (state == EHomeScreenIdleState) {
+            activityEnabler->launchActivityL(KAppLibActivactionUri);
+        } else {
+            activityEnabler->launchActivityL(KHsActivactionUri);
+        }    
+        CleanupStack::PopAndDestroy(activityEnabler);
+        CleanupStack::PopAndDestroy(&apaLsSession);
+    }
+}
+
+// ---------------------------------------------------------------------------
+// 
+// ---------------------------------------------------------------------------
+//
+void CHsAppKeyPlugin::HandleLongPressL()
+{
+    if( !mDialog ) {
+        TInt value( 0 );
+        RProperty::Get( TsProperty::KCategory, 
+                    TsProperty::KVisibilityKey,
+                    value );
+        if(!value) {
+            mDialog = CHbDeviceDialogSymbian::NewL();    
+            CHbSymbianVariantMap* params = CHbSymbianVariantMap::NewL();
+            if(KErrNone != mDialog->Show(KTsPluginName,*params,this)) {
+                delete mDialog;
+                mDialog = 0;
+            }
+            delete params;
+        }
+    }
+}
+//  End of File
+
+