--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/webkitutils/rt_gesturehelper/inc/rt_gesturecontrol.h Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,95 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "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: Gesture control
+*
+*/
+
+
+#ifndef _RT_GESTURECONTROL_H_
+#define _RT_GESTURECONTROL_H_
+
+#include <alf/alfcontrol.h>
+
+class CAlfEnv;
+class CAlfDisplay;
+
+namespace RT_GestureHelper
+{
+
+class CGestureHelper;
+class MGestureObserver;
+
+/**
+ * Gesture control provides pointer event forwarding to gesture helper.
+ *
+ * Gesture control can be created as
+ * - Stand-alone: This functionality is usable by clients that want to
+ * capture pointer events from anywhere in the screen. For example, a view
+ * that wants to know if user tapped anywhere on the screen could use this.
+ * - Derived: client can use the forward-pointer-events-to-gesture-helper
+ * functionality by deriving from CGestureControl. Client has to create at
+ * least one visual that captures pointer events. This base class will
+ * receive the events and forward them to CGestureHelper.
+ *
+ * The client can keep other widgets on top of this control, to allow them
+ * priority of capturing the pointer events.
+ */
+class CGestureControl : public CAlfControl
+ {
+public:
+ /**
+ * Creates a stand-alone gesture control.
+ * Creates a full screen visual that captures pointer events. Converts
+ * pointer events to gestures and calls back on aObserver.
+ * @param aFreeControlGroupId control group id that client does not use
+ */
+ IMPORT_C static CGestureControl* NewLC( MGestureObserver& aObserver,
+ CAlfEnv& aEnv, CAlfDisplay& aDisplay, TInt aFreeControlGroupId );
+
+ /** Destructor */
+ IMPORT_C ~CGestureControl();
+
+ // From CAlfControl
+ IMPORT_C TBool OfferEventL( const TAlfEvent& aEvent );
+
+ /** @see CGestureHelper::SetHoldingEnabled */
+ IMPORT_C void SetHoldingEnabled( TBool aEnabled );
+ /** @see CGestureHelper::IsHoldingEnabled */
+ IMPORT_C TBool IsHoldingEnabled() const;
+ /** @see CGestureHelper::SetDoubleTapEnabled */
+ IMPORT_C void SetDoubleTapEnabled( TBool aEnabled );
+ /** @see CGestureHelper::IsDoubleTapEnabled */
+ IMPORT_C TBool IsDoubleTapEnabled() const;
+
+protected:
+ /** Constructor */
+ IMPORT_C CGestureControl();
+
+ /**
+ * Deriving class is expected to create a visual to receive pointer events.
+ * This base class does not create a visual (unless creates via NewLC, i.e.,
+ * in that case this class is not derived from)
+ * @param aFreeControlGroupId control group id that client does not use
+ */
+ IMPORT_C void ConstructL( MGestureObserver& aObserver,
+ CAlfEnv& aEnv, CAlfDisplay& aDisplay, TInt aFreeControlGroupId );
+
+private:
+ /// Helper that provides gestures
+ CGestureHelper* iHelper;
+ };
+
+} // namespace RT_GestureHelper
+
+#endif // _RT_GESTURECONTROL_H_