--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/imgeditor_plat/image_editor_utilities_api/inc/Callback.h Fri Jan 29 13:53:17 2010 +0200
@@ -0,0 +1,117 @@
+/*
+* Copyright (c) 2010 Ixonos Plc.
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the "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:
+* Ixonos Plc
+*
+* Description:
+* Forces an asynchronous callback to be called.
+*
+*/
+
+
+#ifndef CALLBACK_H
+#define CALLBACK_H
+
+#include <e32base.h>
+#include "callbackmethod.h"
+
+/**
+ * Forces an asynchronous callback to be called.
+ *
+ * @code
+ * ?good_class_usage_example(s)
+ * @endcode
+ *
+ * @lib ImageEditorUtils.lib
+ * @since S60 v5.0
+ */
+class CObCallback : public CActive
+{
+
+public:
+
+/** @name Methods:*/
+//@{
+
+ /**
+ * Two-phased constructor.
+ * @param aMethod - observer reference
+ * @param ?arg2 ?description
+ */
+ IMPORT_C static CObCallback * NewL (MObCallbackMethod * aMethod);
+
+ /**
+ * Destructor.
+ */
+ IMPORT_C ~CObCallback();
+
+ /**
+ * Forces the active scheduler to do callback
+ *
+ * @since S60 ?S60_version
+ * @param aParam - ID for callback, returned to observer
+ * @param ?arg2 ?description
+ * @return ?description
+ */
+ IMPORT_C void DoCallback (TInt aParam);
+
+protected:
+
+private:
+
+ CObCallback (MObCallbackMethod * aMethod);
+
+ void ConstructL();
+
+// from base class CActive
+
+ /**
+ * From CActive.
+ * See CActive
+ *
+ * @since S60 ?S60_version
+ */
+ virtual void RunL();
+
+
+ /**
+ * From CActive.
+ * See CActive
+ *
+ * @since S60 ?S60_version
+ */
+ virtual void DoCancel();
+
+ /** CompleteRequest
+ *
+ * Force RunL
+ *
+ * @param -
+ * @return -
+ */
+ void CompleteRequest();
+
+private: // data
+
+ /**
+ * Observer reference
+ */
+ MObCallbackMethod * iMethod;
+
+ /**
+ * Callback ID
+ */
+ TInt iParam;
+};
+
+
+#endif // CALLBACK_H