skins/AknSkins/oomplugin/aknskinsoomplugin.cpp
changeset 0 05e9090e2422
child 54 08459e712984
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/skins/AknSkins/oomplugin/aknskinsoomplugin.cpp	Thu Dec 17 09:14:12 2009 +0200
@@ -0,0 +1,151 @@
+/*
+* Copyright (c) 2007-2008 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:  OOM plugin for skin server.
+*
+*/
+
+#include <ecom/ecom.h>
+#include <ecom/implementationproxy.h>
+#include <oommonitorplugin.h>
+#include <AknsSrvClient.h>
+#include <w32std.h>
+
+class CAknSkinsOomMonitorPlugin : public COomMonitorPlugin
+    {
+public:
+    CAknSkinsOomMonitorPlugin();
+    ~CAknSkinsOomMonitorPlugin();
+    void ConstructL();
+
+public:
+    void FreeRam();
+    void MemoryGood();
+
+private:
+    RAknsSrvSession iSkinSrvSession;
+    };
+
+// -----------------------------------------------------------------------------
+// C++ constructor.
+// -----------------------------------------------------------------------------
+//
+CAknSkinsOomMonitorPlugin::CAknSkinsOomMonitorPlugin()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// Destructor.
+// -----------------------------------------------------------------------------
+//
+CAknSkinsOomMonitorPlugin::~CAknSkinsOomMonitorPlugin()
+    {
+    iSkinSrvSession.Close();
+    }
+
+// -----------------------------------------------------------------------------
+// Symbian two-phased constructor (2nd phase).
+// -----------------------------------------------------------------------------
+//
+void CAknSkinsOomMonitorPlugin::ConstructL()
+    {
+    COomMonitorPlugin::ConstructL();
+    User::LeaveIfError( iSkinSrvSession.Connect() );
+    }
+
+// -----------------------------------------------------------------------------
+// Gets display type.
+// -----------------------------------------------------------------------------
+//
+TAknsSrcScreenMode GetDisplayTypeL(RWsSession& aSession)
+    {
+    CWsScreenDevice* sc = new (ELeave) CWsScreenDevice(aSession);
+    CleanupStack::PushL(sc);
+    sc->Construct();
+    TSize screensize(0,0);
+    screensize = sc->SizeInPixels();
+    CleanupStack::PopAndDestroy();// screendevice
+    if (screensize.iWidth > screensize.iHeight)
+        {
+        return EAknsSrvScrModeLandscape;
+        }
+    else if (screensize.iWidth < screensize.iHeight)
+        {
+        return EAknsSrvScrModePortrait;
+        }
+    else // square
+        {
+        return EAknsSrvScrModeSquare;
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// Tries to free RAM.
+// -----------------------------------------------------------------------------
+//
+void CAknSkinsOomMonitorPlugin::FreeRam()
+    {
+    TInt err(KErrNone);
+    TAknsSrcScreenMode mode = EAknsSrvScrModeSquare;
+    TRAP(err, mode = GetDisplayTypeL(WsSession()));
+    if (mode != EAknsSrvScrModeSquare)
+        {
+#if defined(_DEBUG)
+        RDebug::Print(_L("CAknSkinsOomMonitorPlugin: Starting to free memory, mode %d"), mode);
+#endif
+        iSkinSrvSession.FreeUnnecessaryLayoutBitmaps(mode);
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// CAknSkinsOomMonitorPlugin::MemoryGood
+// -----------------------------------------------------------------------------
+//
+void CAknSkinsOomMonitorPlugin::MemoryGood()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// Creates plugin.
+// -----------------------------------------------------------------------------
+//
+TAny* CreatePlugin()
+    {
+    CAknSkinsOomMonitorPlugin* plugin = new(ELeave) CAknSkinsOomMonitorPlugin;
+    CleanupStack::PushL(plugin);
+    plugin->ConstructL();
+    CleanupStack::Pop(plugin);
+    return plugin;
+    }
+
+// -----------------------------------------------------------------------------
+// Implementation table for plugin.
+// -----------------------------------------------------------------------------
+//
+const TImplementationProxy ImplementationTable[] =
+    {
+    {{0x10207140}, ::CreatePlugin}
+    };
+
+// -----------------------------------------------------------------------------
+// ImplementationGroupProxy
+// -----------------------------------------------------------------------------
+//
+EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)
+    {
+    aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy) ;
+    return ImplementationTable;
+    }
+
+// End of file
+