Merge "Size negotiation patch 3: Scope size negotiation enums" into tizen
[platform/core/uifw/dali-toolkit.git] / dali-toolkit / public-api / controls / control-impl.cpp
index b2fb483..d65c16b 100644 (file)
@@ -1,32 +1,44 @@
-//
-// Copyright (c) 2014 Samsung Electronics Co., Ltd.
-//
-// Licensed under the Flora License, Version 1.0 (the License);
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://floralicense.org/license/
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an AS IS BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-//
+/*
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 
+// CLASS HEADER
 #include <dali-toolkit/public-api/controls/control-impl.h>
 
-#include <boost/thread/tss.hpp>
+// EXTERNAL INCLUDES
+#include <cstring> // for strcmp
+#include <limits>
 #include <stack>
-
+#include <dali/public-api/actors/image-actor.h>
+#include <dali/public-api/actors/mesh-actor.h>
+#include <dali/public-api/animation/constraint.h>
+#include <dali/public-api/animation/constraints.h>
+#include <dali/public-api/geometry/mesh.h>
+#include <dali/public-api/object/type-registry.h>
+#include <dali/public-api/object/type-registry-helper.h>
+#include <dali/public-api/scripting/scripting.h>
+#include <dali/public-api/size-negotiation/relayout-container.h>
 #include <dali/integration-api/debug.h>
 
-#include "dali-toolkit/internal/controls/style-change-processor.h"
-#include "dali-toolkit/internal/controls/relayout-controller.h"
-#include "dali-toolkit/internal/controls/relayout-helper.h"
-#include "dali-toolkit/public-api/focus-manager/keyinput-focus-manager.h"
-#include "dali-toolkit/public-api/focus-manager/keyboard-focus-manager.h"
+// INTERNAL INCLUDES
+#include <dali-toolkit/public-api/focus-manager/keyinput-focus-manager.h>
+#include <dali-toolkit/public-api/focus-manager/keyboard-focus-manager.h>
 #include <dali-toolkit/public-api/controls/control.h>
+#include <dali-toolkit/public-api/styling/style-manager.h>
+#include <dali-toolkit/internal/styling/style-manager-impl.h>
 
 namespace Dali
 {
@@ -34,9 +46,6 @@ namespace Dali
 namespace Toolkit
 {
 
-const Property::Index Control::PROPERTY_BACKGROUND_COLOR      = ControlImpl::CONTROL_PROPERTY_START_INDEX;
-const Property::Index Control::PROPERTY_BACKGROUND            = ControlImpl::CONTROL_PROPERTY_START_INDEX + 1;
-
 namespace
 {
 
@@ -45,39 +54,28 @@ Integration::Log::Filter* gLogFilter  = Integration::Log::Filter::New(Debug::NoL
 #endif
 
 const float MAX_FLOAT_VALUE( std::numeric_limits<float>::max() );
+const Vector3 MAX_SIZE( MAX_FLOAT_VALUE, MAX_FLOAT_VALUE, MAX_FLOAT_VALUE );
 const float BACKGROUND_ACTOR_Z_POSITION( -0.1f );
 
 BaseHandle Create()
 {
-  return ControlImpl::New();
+  return Internal::Control::New();
 }
 
-TypeRegistration CONTROL_TYPE( typeid(Control), typeid(CustomActor), Create );
+// Setup signals and actions using the type-registry.
+DALI_TYPE_REGISTRATION_BEGIN( Control, CustomActor, Create );
 
-// Property Registration after ControlImpl::Impl definition below
+// Note: Properties are registered separately below,
 
-TypeAction ACTION_TYPE_1(CONTROL_TYPE, Toolkit::Control::ACTION_CONTROL_ACTIVATED, &ControlImpl::DoAction);
+DALI_SIGNAL_REGISTRATION( Control, "key-event",                 SIGNAL_KEY_EVENT         )
+DALI_SIGNAL_REGISTRATION( Control, "tapped",                    SIGNAL_TAPPED            )
+DALI_SIGNAL_REGISTRATION( Control, "panned",                    SIGNAL_PANNED            )
+DALI_SIGNAL_REGISTRATION( Control, "pinched",                   SIGNAL_PINCHED           )
+DALI_SIGNAL_REGISTRATION( Control, "long-pressed",              SIGNAL_LONG_PRESSED      )
 
-/**
- * Helper class used to set the Control's size through the Actor's API or through children added.
- */
-class SetSizeLock
-{
-public:
-  SetSizeLock( bool& lock )
-  : mLock( lock )
-  {
-    mLock = true;
-  }
-
-  ~SetSizeLock()
-  {
-    mLock = false;
-  }
+DALI_ACTION_REGISTRATION( Control, "control-activated",         ACTION_CONTROL_ACTIVATED )
 
-private:
-  bool& mLock;
-};
+DALI_TYPE_REGISTRATION_END()
 
 /**
  * Structure which holds information about the background of a control
@@ -98,70 +96,6 @@ struct Background
 };
 
 /**
- * Helper function to calculate a dimension given the policy of that dimension; the minimum &
- * maximum values that dimension can be; and the allocated value for that dimension.
- *
- * @param[in]  policy     The size policy for that dimension.
- * @param[in]  minimum    The minimum value that dimension can be.
- * @param[in]  maximum    The maximum value that dimension can be.
- * @param[in]  allocated  The value allocated for that dimension.
- *
- * @return The value that the dimension should be.
- *
- * @note This does not handle Control::Fixed policy.
- */
-float Calculate( Control::SizePolicy policy, float minimum, float maximum, float allocated )
-{
-  float size( allocated );
-
-  switch( policy )
-  {
-    case Control::Fixed:
-    {
-      // Use allocated value
-      break;
-    }
-
-    case Control::Minimum:
-    {
-      // Size is always at least the minimum.
-      size = std::max( allocated, minimum );
-      break;
-    }
-
-    case Control::Maximum:
-    {
-      // Size can grow but up to a maximum value.
-      size = std::min( allocated, maximum );
-      break;
-    }
-
-    case Control::Range:
-    {
-      // Size is at least the minimum and can grow up to the maximum
-      size = std::max( size, minimum );
-      size = std::min( size, maximum );
-     break;
-    }
-
-    case Control::Flexible:
-    {
-      // Size grows or shrinks with no limits.
-      size = allocated;
-      break;
-    }
-
-    default:
-    {
-      DALI_ASSERT_DEBUG( false && "This function was not intended to be used by any other policy." );
-      break;
-    }
-  }
-
-  return size;
-}
-
-/**
  * Creates a white coloured Mesh.
  */
 Mesh CreateMesh()
@@ -203,97 +137,85 @@ void SetupBackgroundActor( Actor actor, Property::Index constrainingIndex, const
 {
   actor.SetColor( color );
   actor.SetPositionInheritanceMode( USE_PARENT_POSITION_PLUS_LOCAL_POSITION );
+  actor.SetColorMode( USE_OWN_MULTIPLY_PARENT_COLOR );
   actor.SetZ( BACKGROUND_ACTOR_Z_POSITION );
+  actor.SetRelayoutEnabled( false );
 
-  Constraint constraint = Constraint::New<Vector3>( constrainingIndex,
-                                                    ParentSource( Actor::SIZE ),
+  Constraint constraint = Constraint::New<Vector3>( actor,
+                                                    constrainingIndex,
                                                     EqualToConstraint() );
-  actor.ApplyConstraint( constraint );
+  constraint.AddSource( ParentSource( Actor::Property::SIZE ) );
+  constraint.Apply();
 }
 
 } // unnamed namespace
 
-class ControlImpl::Impl : public ConnectionTrackerInterface
+namespace Internal
+{
+
+class Control::Impl : public ConnectionTracker
 {
 public:
+
+  /**
+   * Size indices for mMinMaxSize array
+   */
+  enum
+  {
+    MIN_SIZE_INDEX = 0,
+    MAX_SIZE_INDEX = 1
+  };
+
+public:
   // Construction & Destruction
-  Impl(ControlImpl& controlImpl)
-  : mControlImpl(controlImpl),
-    mInitialized( false ),
+  Impl(Control& controlImpl)
+  : mControlImpl( controlImpl ),
+    mStyleName(""),
+    mBackground( NULL ),
+    mStartingPinchScale( NULL ),
+    mKeyEventSignal(),
     mPinchGestureDetector(),
     mPanGestureDetector(),
     mTapGestureDetector(),
     mLongPressGestureDetector(),
-    mStartingPinchScale(),
-    mLockSetSize( false ),
-    mWidthPolicy( Control::Fixed ),
-    mHeightPolicy( Control::Fixed ),
-    mSize(),
-    mSetSize(),
-    mMinimumSize(),
-    mMaximumSize( MAX_FLOAT_VALUE, MAX_FLOAT_VALUE, MAX_FLOAT_VALUE ),
-    mIsKeyboardNavigationSupported(false),
-    mIsKeyboardFocusGroup(false),
-    mKeyEventSignalV2(),
-    mBackground( NULL )
+    mCurrentSize(),
+    mNaturalSize(),
+    mFlags( Control::CONTROL_BEHAVIOUR_NONE ),
+    mIsKeyboardNavigationSupported( false ),
+    mIsKeyboardFocusGroup( false ),
+    mInitialized( false )
   {
   }
 
   ~Impl()
   {
     // All gesture detectors will be destroyed so no need to disconnect.
-    if ( mBackground )
-    {
-      delete mBackground;
-    }
+    delete mBackground;
+    delete mStartingPinchScale;
   }
 
   // Gesture Detection Methods
 
-  void PinchDetected(Actor actor, PinchGesture pinch)
+  void PinchDetected(Actor actor, const PinchGesture& pinch)
   {
     mControlImpl.OnPinch(pinch);
   }
 
-  void PanDetected(Actor actor, PanGesture pan)
+  void PanDetected(Actor actor, const PanGesture& pan)
   {
     mControlImpl.OnPan(pan);
   }
 
-  void TapDetected(Actor actor, TapGesture tap)
+  void TapDetected(Actor actor, const TapGesture& tap)
   {
     mControlImpl.OnTap(tap);
   }
 
-  void LongPressDetected(Actor actor, LongPressGesture longPress)
+  void LongPressDetected(Actor actor, const LongPressGesture& longPress)
   {
     mControlImpl.OnLongPress(longPress);
   }
 
-  /**
-   * @copydoc ConnectionTrackerInterface::SignalConnected
-   */
-  virtual void SignalConnected( SlotObserver* slotObserver, CallbackBase* callback )
-  {
-    mConnectionTracker.SignalConnected( slotObserver, callback );
-  }
-
-  /**
-   * @copydoc ConnectionTrackerInterface::SignalDisconnected
-   */
-  virtual void SignalDisconnected( SlotObserver* slotObserver, CallbackBase* callback )
-  {
-    mConnectionTracker.SignalDisconnected( slotObserver, callback );
-  }
-
-  /**
-   * @copydoc ConnectionTrackerInterface::GetConnectionCount
-   */
-  virtual std::size_t GetConnectionCount() const
-  {
-    return mConnectionTracker.GetConnectionCount();
-  }
-
   // Background Methods
 
   /**
@@ -319,21 +241,27 @@ public:
    */
   static void SetProperty( BaseObject* object, Property::Index index, const Property::Value& value )
   {
-    Control control = Control::DownCast( BaseHandle( object ) );
+    Toolkit::Control control = Toolkit::Control::DownCast( BaseHandle( object ) );
 
     if ( control )
     {
-      ControlImpl& controlImpl( control.GetImplementation() );
+      Control& controlImpl( control.GetImplementation() );
 
       switch ( index )
       {
-        case Control::PROPERTY_BACKGROUND_COLOR:
+        case Toolkit::Control::Property::STYLE_NAME:
+        {
+          controlImpl.SetStyleName( value.Get< std::string >() );
+          break;
+        }
+
+        case Toolkit::Control::Property::BACKGROUND_COLOR:
         {
           controlImpl.SetBackgroundColor( value.Get< Vector4 >() );
           break;
         }
 
-        case Control::PROPERTY_BACKGROUND:
+        case Toolkit::Control::Property::BACKGROUND_IMAGE:
         {
           if ( value.HasKey( "image" ) )
           {
@@ -342,16 +270,29 @@ public:
 
             if ( image )
             {
-              controlImpl.SetBackground( image );
+              controlImpl.SetBackgroundImage( image );
             }
           }
-          else if ( value.Get< Property::Map >().empty() )
+          else if ( value.Get< Property::Map >().Empty() )
           {
             // An empty map means the background is no longer required
             controlImpl.ClearBackground();
           }
           break;
         }
+
+        case Toolkit::Control::Property::KEY_INPUT_FOCUS:
+        {
+          if ( value.Get< bool >() )
+          {
+            controlImpl.SetKeyInputFocus();
+          }
+          else
+          {
+            controlImpl.ClearKeyInputFocus();
+          }
+          break;
+        }
       }
     }
   }
@@ -366,21 +307,27 @@ public:
   {
     Property::Value value;
 
-    Control control = Control::DownCast( BaseHandle( object ) );
+    Toolkit::Control control = Toolkit::Control::DownCast( BaseHandle( object ) );
 
     if ( control )
     {
-      ControlImpl& controlImpl( control.GetImplementation() );
+      Control& controlImpl( control.GetImplementation() );
 
       switch ( index )
       {
-        case Control::PROPERTY_BACKGROUND_COLOR:
+        case Toolkit::Control::Property::STYLE_NAME:
+        {
+          value = controlImpl.GetStyleName();
+          break;
+        }
+
+        case Toolkit::Control::Property::BACKGROUND_COLOR:
         {
           value = controlImpl.GetBackgroundColor();
           break;
         }
 
-        case Control::PROPERTY_BACKGROUND:
+        case Toolkit::Control::Property::BACKGROUND_IMAGE:
         {
           Property::Map map;
 
@@ -393,7 +340,7 @@ public:
               Image image = imageActor.GetImage();
               Property::Map imageMap;
               Scripting::CreatePropertyMap( image, imageMap );
-              map.push_back( Property::StringValuePair( "image", imageMap ) );
+              map[ "image" ] = imageMap;
             }
           }
 
@@ -401,6 +348,11 @@ public:
           break;
         }
 
+        case Toolkit::Control::Property::KEY_INPUT_FOCUS:
+        {
+          value = controlImpl.HasKeyInputFocus();
+          break;
+        }
       }
     }
 
@@ -409,56 +361,46 @@ public:
 
   // Data
 
-  ControlImpl& mControlImpl;
-
-  bool mInitialized:1;
-
-  ConnectionTracker mConnectionTracker; // signal connection tracker
+  Control& mControlImpl;
+  std::string mStyleName;
+  Background* mBackground;           ///< Only create the background if we use it
+  Vector3* mStartingPinchScale;      ///< The scale when a pinch gesture starts, TODO: consider removing this
+  Toolkit::Control::KeyEventSignalType mKeyEventSignal;
 
   // Gesture Detection
-
-  PinchGestureDetector     mPinchGestureDetector;
-  PanGestureDetector       mPanGestureDetector;
-  TapGestureDetector       mTapGestureDetector;
+  PinchGestureDetector mPinchGestureDetector;
+  PanGestureDetector mPanGestureDetector;
+  TapGestureDetector mTapGestureDetector;
   LongPressGestureDetector mLongPressGestureDetector;
+  // @todo change all these to Vector2 when we have a chance to sanitize the public API as well
+  Vector3 mCurrentSize; ///< Stores the current control's size, this is the negotiated size
+  Vector3 mNaturalSize; ///< Stores the size set through the Actor's API. This is size the actor wants to be. Useful when reset to the initial size is needed.
 
-  Vector3 mStartingPinchScale;       ///< The scale when a pinch gesture starts
-
-  // Relayout and size negotiation
-
-  bool mLockSetSize;                 ///< Used to avoid. Can't be a bitfield as a reference to this member is used in SetSizeLock helper class.
-
-  Control::SizePolicy mWidthPolicy;  ///< Stores the width policy.
-  Control::SizePolicy mHeightPolicy; ///< Stores the height policy.
-
-  Vector3 mSize;                     ///< Stores the current control's size.
-  Vector3 mSetSize;                  ///< Always stores the size set through the Actor's API. Useful when reset to the initial size is needed.
-  Vector3 mMinimumSize;              ///< Stores the control's minimum size.
-  Vector3 mMaximumSize;              ///< Stores the control's maximum size.
+  ControlBehaviour mFlags :6;              ///< Flags passed in from constructor. Need to increase this size when new enums are added
+  bool mIsKeyboardNavigationSupported :1;  ///< Stores whether keyboard navigation is supported by the control.
+  bool mIsKeyboardFocusGroup :1;           ///< Stores whether the control is a focus group.
+  bool mInitialized :1;
 
-  bool mIsKeyboardNavigationSupported;  ///< Stores whether keyboard navigation is supported by the control.
-  bool mIsKeyboardFocusGroup;        ///< Stores whether the control is a focus group.
-
-  Toolkit::Control::KeyEventSignalV2 mKeyEventSignalV2;
-
-  // Background
-  Background* mBackground;           ///< Only create the background if we use it
-
-  // Properties - need to be part of this class as ControlImpl::Impl is private
+  // Properties - these need to be members of Internal::Control::Impl as they need to function within this class.
   static PropertyRegistration PROPERTY_1;
   static PropertyRegistration PROPERTY_2;
+  static PropertyRegistration PROPERTY_3;
+  static PropertyRegistration PROPERTY_4;
 };
 
-PropertyRegistration ControlImpl::Impl::PROPERTY_1( CONTROL_TYPE, "background-color", Control::PROPERTY_BACKGROUND_COLOR, Property::VECTOR4, &ControlImpl::Impl::SetProperty, &ControlImpl::Impl::GetProperty );
-PropertyRegistration ControlImpl::Impl::PROPERTY_2( CONTROL_TYPE, "background",       Control::PROPERTY_BACKGROUND,       Property::MAP,     &ControlImpl::Impl::SetProperty, &ControlImpl::Impl::GetProperty );
+// Properties registered without macro to use specific member variables.
+PropertyRegistration Control::Impl::PROPERTY_1( typeRegistration, "style-name",       Toolkit::Control::Property::STYLE_NAME,       Property::STRING,  &Control::Impl::SetProperty, &Control::Impl::GetProperty );
+PropertyRegistration Control::Impl::PROPERTY_2( typeRegistration, "background-color", Toolkit::Control::Property::BACKGROUND_COLOR, Property::VECTOR4, &Control::Impl::SetProperty, &Control::Impl::GetProperty );
+PropertyRegistration Control::Impl::PROPERTY_3( typeRegistration, "background-image", Toolkit::Control::Property::BACKGROUND_IMAGE, Property::MAP,     &Control::Impl::SetProperty, &Control::Impl::GetProperty );
+PropertyRegistration Control::Impl::PROPERTY_4( typeRegistration, "key-input-focus",  Toolkit::Control::Property::KEY_INPUT_FOCUS,  Property::BOOLEAN, &Control::Impl::SetProperty, &Control::Impl::GetProperty );
 
-Control ControlImpl::New()
+Toolkit::Control Control::New()
 {
   // Create the implementation, temporarily owned on stack
-  IntrusivePtr<ControlImpl> controlImpl = new ControlImpl( false );
+  IntrusivePtr<Control> controlImpl = new Control( CONTROL_BEHAVIOUR_NONE );
 
   // Pass ownership to handle
-  Control handle( *controlImpl );
+  Toolkit::Control handle( *controlImpl );
 
   // Second-phase init of the implementation
   // This can only be done after the CustomActor connection has been made...
@@ -467,106 +409,124 @@ Control ControlImpl::New()
   return handle;
 }
 
-ControlImpl::~ControlImpl()
+Control::~Control()
 {
-  if( mImpl->mInitialized )
-  {
-    // Unregister only if control has been initialized.
-    Internal::StyleChangeProcessor::Unregister( this );
-  }
   delete mImpl;
 }
 
-void ControlImpl::Initialize()
+Vector3 Control::GetNaturalSize()
 {
-  // Register with the style change processor so we are informed when the default style changes
-  Internal::StyleChangeProcessor::Register( this );
-
-  // Calling deriving classes
-  OnInitialize();
+  // could be overridden in derived classes.
+  return mImpl->mNaturalSize;
+}
 
-  mImpl->mInitialized = true;
+float Control::CalculateChildSize( const Dali::Actor& child, Dimension::Type dimension )
+{
+  // Could be overridden in derived classes.
+  return CalculateChildSizeBase( child, dimension );
 }
 
-void ControlImpl::EnableGestureDetection(Gesture::Type type)
+bool Control::RelayoutDependentOnChildren( Dimension::Type dimension )
 {
-  if ( (type & Gesture::Pinch) && !mImpl->mPinchGestureDetector )
-  {
-    mImpl->mPinchGestureDetector = PinchGestureDetector::New();
-    mImpl->mPinchGestureDetector.DetectedSignal().Connect(mImpl, &Impl::PinchDetected);
-    mImpl->mPinchGestureDetector.Attach(Self());
-  }
+  return RelayoutDependentOnChildrenBase( dimension );
+}
 
-  if ( (type & Gesture::Pan) && !mImpl->mPanGestureDetector )
+float Control::GetHeightForWidth( float width )
+{
+  // could be overridden in derived classes.
+  float height( 0.0f );
+  if ( mImpl->mNaturalSize.width > 0.0f )
   {
-    mImpl->mPanGestureDetector = PanGestureDetector::New();
-    mImpl->mPanGestureDetector.DetectedSignal().Connect(mImpl, &Impl::PanDetected);
-    mImpl->mPanGestureDetector.Attach(Self());
+    height = mImpl->mNaturalSize.height * width / mImpl->mNaturalSize.width;
   }
+  return height;
+}
 
-  if ( (type & Gesture::Tap) && !mImpl->mTapGestureDetector )
+float Control::GetWidthForHeight( float height )
+{
+  // could be overridden in derived classes.
+  float width( 0.0f );
+  if ( mImpl->mNaturalSize.height > 0.0f )
   {
-    mImpl->mTapGestureDetector = TapGestureDetector::New();
-    mImpl->mTapGestureDetector.DetectedSignal().Connect(mImpl, &Impl::TapDetected);
-    mImpl->mTapGestureDetector.Attach(Self());
+    width = mImpl->mNaturalSize.width * height / mImpl->mNaturalSize.height;
   }
+  return width;
+}
 
-  if ( (type & Gesture::LongPress) && !mImpl->mLongPressGestureDetector )
-  {
-    mImpl->mLongPressGestureDetector = LongPressGestureDetector::New();
-    mImpl->mLongPressGestureDetector.DetectedSignal().Connect(mImpl, &Impl::LongPressDetected);
-    mImpl->mLongPressGestureDetector.Attach(Self());
-  }
+const Vector3& Control::GetControlSize() const
+{
+  return mImpl->mCurrentSize;
 }
 
-void ControlImpl::DisableGestureDetection(Gesture::Type type)
+const Vector3& Control::GetSizeSet() const
 {
-  if ( (type & Gesture::Pinch) && mImpl->mPinchGestureDetector )
-  {
-    mImpl->mPinchGestureDetector.Detach(Self());
-    mImpl->mPinchGestureDetector.Reset();
-  }
+  return mImpl->mNaturalSize;
+}
 
-  if ( (type & Gesture::Pan) && mImpl->mPanGestureDetector )
+void Control::SetKeyInputFocus()
+{
+  if( Self().OnStage() )
   {
-    mImpl->mPanGestureDetector.Detach(Self());
-    mImpl->mPanGestureDetector.Reset();
+    Toolkit::KeyInputFocusManager::Get().SetFocus(Toolkit::Control::DownCast(Self()));
   }
+}
 
-  if ( (type & Gesture::Tap) && mImpl->mTapGestureDetector )
+bool Control::HasKeyInputFocus()
+{
+  bool result = false;
+  if( Self().OnStage() )
   {
-    mImpl->mTapGestureDetector.Detach(Self());
-    mImpl->mTapGestureDetector.Reset();
+    result = Toolkit::KeyInputFocusManager::Get().IsKeyboardListener(Toolkit::Control::DownCast(Self()));
   }
+  return result;
+}
 
-  if ( (type & Gesture::LongPress) && mImpl->mLongPressGestureDetector)
+void Control::ClearKeyInputFocus()
+{
+  if( Self().OnStage() )
   {
-    mImpl->mLongPressGestureDetector.Detach(Self());
-    mImpl->mLongPressGestureDetector.Reset();
+    Toolkit::KeyInputFocusManager::Get().RemoveFocus(Toolkit::Control::DownCast(Self()));
   }
 }
 
-PinchGestureDetector ControlImpl::GetPinchGestureDetector() const
+PinchGestureDetector Control::GetPinchGestureDetector() const
 {
   return mImpl->mPinchGestureDetector;
 }
 
-PanGestureDetector ControlImpl::GetPanGestureDetector() const
+PanGestureDetector Control::GetPanGestureDetector() const
 {
   return mImpl->mPanGestureDetector;
 }
 
-TapGestureDetector ControlImpl::GetTapGestureDetector() const
+TapGestureDetector Control::GetTapGestureDetector() const
 {
   return mImpl->mTapGestureDetector;
 }
 
-LongPressGestureDetector ControlImpl::GetLongPressGestureDetector() const
+LongPressGestureDetector Control::GetLongPressGestureDetector() const
 {
   return mImpl->mLongPressGestureDetector;
 }
 
-void ControlImpl::SetBackgroundColor( const Vector4& color )
+void Control::SetStyleName( const std::string& styleName )
+{
+  if( styleName != mImpl->mStyleName )
+  {
+    mImpl->mStyleName = styleName;
+
+    // Apply new style
+    Toolkit::StyleManager styleManager = Toolkit::StyleManager::Get();
+    GetImpl( styleManager ).ApplyThemeStyle( Toolkit::Control( GetOwner() ) );
+  }
+}
+
+const std::string& Control::GetStyleName() const
+{
+  return mImpl->mStyleName;
+}
+
+void Control::SetBackgroundColor( const Vector4& color )
 {
   Background& background( mImpl->GetBackground() );
 
@@ -580,8 +540,7 @@ void ControlImpl::SetBackgroundColor( const Vector4& color )
     // Create Mesh Actor
     MeshActor meshActor = MeshActor::New( CreateMesh() );
 
-    meshActor.SetAffectedByLighting( false );
-    SetupBackgroundActor( meshActor, Actor::SCALE, color );
+    SetupBackgroundActor( meshActor, Actor::Property::SCALE, color );
 
     // Set the background actor before adding so that we do not inform deriving classes
     background.actor = meshActor;
@@ -591,7 +550,7 @@ void ControlImpl::SetBackgroundColor( const Vector4& color )
   background.color = color;
 }
 
-Vector4 ControlImpl::GetBackgroundColor() const
+Vector4 Control::GetBackgroundColor() const
 {
   if ( mImpl->mBackground )
   {
@@ -600,7 +559,7 @@ Vector4 ControlImpl::GetBackgroundColor() const
   return Color::TRANSPARENT;
 }
 
-void ControlImpl::SetBackground( Image image )
+void Control::SetBackgroundImage( Image image )
 {
   Background& background( mImpl->GetBackground() );
 
@@ -608,18 +567,18 @@ void ControlImpl::SetBackground( Image image )
   {
     // Remove Current actor, unset AFTER removal so that we do not inform deriving classes
     Self().Remove( background.actor );
-    background.actor = NULL;
+    background.actor.Reset();
   }
 
   ImageActor imageActor = ImageActor::New( image );
-  SetupBackgroundActor( imageActor, Actor::SIZE, background.color );
+  SetupBackgroundActor( imageActor, Actor::Property::SIZE, background.color );
 
   // Set the background actor before adding so that we do not inform derived classes
   background.actor = imageActor;
   Self().Add( imageActor );
 }
 
-void ControlImpl::ClearBackground()
+void Control::ClearBackground()
 {
   if ( mImpl->mBackground )
   {
@@ -631,7 +590,7 @@ void ControlImpl::ClearBackground()
   }
 }
 
-Actor ControlImpl::GetBackgroundActor() const
+Actor Control::GetBackgroundActor() const
 {
   if ( mImpl->mBackground )
   {
@@ -641,488 +600,426 @@ Actor ControlImpl::GetBackgroundActor() const
   return Actor();
 }
 
-void ControlImpl::OnPinch(PinchGesture pinch)
+void Control::SetKeyboardNavigationSupport(bool isSupported)
 {
-  if (pinch.state == Gesture::Started)
-  {
-    mImpl->mStartingPinchScale = Self().GetCurrentScale();
-  }
-
-  Self().SetScale(mImpl->mStartingPinchScale * pinch.scale);
+  mImpl->mIsKeyboardNavigationSupported = isSupported;
 }
 
-void ControlImpl::OnStageConnection()
+bool Control::IsKeyboardNavigationSupported()
 {
-  RelayoutRequest();
-
-  // Notify derived classes.
-  OnControlStageConnection();
+  return mImpl->mIsKeyboardNavigationSupported;
 }
 
-void ControlImpl::OnStageDisconnection()
+void Control::Activate()
 {
-  // Notify derived classes
-  OnControlStageDisconnection();
+  // Inform deriving classes
+  OnActivated();
 }
 
-void ControlImpl::OnChildAdd(Actor& child)
+bool Control::OnAccessibilityPan(PanGesture gesture)
 {
-  // If this is the background actor, then we do not want to relayout or inform deriving classes
-  if ( mImpl->mBackground && ( child == mImpl->mBackground->actor ) )
-  {
-    return;
-  }
-
-  // Request for relayout.
-  RelayoutRequest();
-
-  // Notify derived classes.
-  OnControlChildAdd( child );
+  return false; // Accessibility pan gesture is not handled by default
 }
 
-void ControlImpl::OnChildRemove(Actor& child)
+bool Control::OnAccessibilityTouch(const TouchEvent& touchEvent)
 {
-  // If this is the background actor, then we do not want to relayout or inform deriving classes
-  if ( mImpl->mBackground && ( child == mImpl->mBackground->actor ) )
-  {
-    return;
-  }
-
-  // Request for relayout.
-  RelayoutRequest();
-
-  // Notify derived classes.
-  OnControlChildRemove( child );
+  return false; // Accessibility touch event is not handled by default
 }
 
-void ControlImpl::OnSizeSet(const Vector3& targetSize)
+bool Control::OnAccessibilityValueChange(bool isIncrease)
 {
-  if( ( !mImpl->mLockSetSize ) && ( targetSize != mImpl->mSetSize ) )
-  {
-    // Only updates size if set through Actor's API
-    mImpl->mSetSize = targetSize;
-  }
-
-  if( targetSize != mImpl->mSize )
-  {
-    // Update control size.
-    mImpl->mSize = targetSize;
-
-    // Notify derived classes.
-    OnControlSizeSet( targetSize );
-  }
+  return false; // Accessibility value change action is not handled by default
 }
 
-void ControlImpl::OnSizeAnimation(Animation& animation, const Vector3& targetSize)
+void Control::SetAsKeyboardFocusGroup(bool isFocusGroup)
 {
-  // Do Nothing
-}
+  mImpl->mIsKeyboardFocusGroup = isFocusGroup;
 
-bool ControlImpl::OnTouchEvent(const TouchEvent& event)
-{
-  return false; // Do not consume
+  // The following line will be removed when the deprecated API in KeyboardFocusManager is deleted
+  Toolkit::KeyboardFocusManager::Get().SetAsFocusGroup(Self(), isFocusGroup);
 }
 
-bool ControlImpl::OnKeyEvent(const KeyEvent& event)
+bool Control::IsKeyboardFocusGroup()
 {
-  return false; // Do not consume
+  return Toolkit::KeyboardFocusManager::Get().IsFocusGroup(Self());
 }
 
-bool ControlImpl::OnMouseWheelEvent(const MouseWheelEvent& event)
+Actor Control::GetNextKeyboardFocusableActor(Actor currentFocusedActor, Toolkit::Control::KeyboardFocusNavigationDirection direction, bool loopEnabled)
 {
-  return false; // Do not consume
+  return Actor();
 }
 
-void ControlImpl::OnKeyInputFocusGained()
+void Control::OnKeyboardFocusChangeCommitted(Actor commitedFocusableActor)
 {
-  // Do Nothing
 }
 
-void ControlImpl::OnKeyInputFocusLost()
+bool Control::DoAction(BaseObject* object, const std::string& actionName, const PropertyValueContainer& attributes)
 {
-  // Do Nothing
-}
+  bool ret = false;
 
-Actor ControlImpl::GetChildByAlias(const std::string& actorAlias)
-{
-  return Actor();
-}
+  if( object && ( 0 == strcmp( actionName.c_str(), ACTION_CONTROL_ACTIVATED ) ) )
+  {
+    Toolkit::Control control = Toolkit::Control::DownCast( BaseHandle( object ) );
+    if( control )
+    {
+      // if cast succeeds there is an implementation so no need to check
+      control.GetImplementation().OnActivated();
+    }
+  }
 
-bool ControlImpl::OnAccessibilityPan(PanGesture gesture)
-{
-  return false; // Accessibility pan gesture is not handled by default
+  return ret;
 }
 
-bool ControlImpl::OnAccessibilityValueChange(bool isIncrease)
+bool Control::DoConnectSignal( BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor )
 {
-  return false; // Accessibility value change action is not handled by default
-}
+  Dali::BaseHandle handle( object );
 
+  bool connected( false );
+  Toolkit::Control control = Toolkit::Control::DownCast( handle );
+  if ( control )
+  {
+    Control& controlImpl( control.GetImplementation() );
+    connected = true;
 
-void ControlImpl::SetKeyboardNavigationSupport(bool isSupported)
-{
-  mImpl->mIsKeyboardNavigationSupported = isSupported;
+    if ( 0 == strcmp( signalName.c_str(), SIGNAL_KEY_EVENT ) )
+    {
+      controlImpl.KeyEventSignal().Connect( tracker, functor );
+    }
+    else if( 0 == strcmp( signalName.c_str(), SIGNAL_TAPPED ) )
+    {
+      controlImpl.EnableGestureDetection( Gesture::Tap );
+      controlImpl.GetTapGestureDetector().DetectedSignal().Connect( tracker, functor );
+    }
+    else if( 0 == strcmp( signalName.c_str(), SIGNAL_PANNED ) )
+    {
+      controlImpl.EnableGestureDetection( Gesture::Pan );
+      controlImpl.GetPanGestureDetector().DetectedSignal().Connect( tracker, functor );
+    }
+    else if( 0 == strcmp( signalName.c_str(), SIGNAL_PINCHED ) )
+    {
+      controlImpl.EnableGestureDetection( Gesture::Pinch );
+      controlImpl.GetPinchGestureDetector().DetectedSignal().Connect( tracker, functor );
+    }
+    else if( 0 == strcmp( signalName.c_str(), SIGNAL_LONG_PRESSED ) )
+    {
+      controlImpl.EnableGestureDetection( Gesture::LongPress );
+      controlImpl.GetLongPressGestureDetector().DetectedSignal().Connect( tracker, functor );
+    }
+    else
+    {
+      // signalName does not match any signal
+      connected = false;
+    }
+  }
+  return connected;
 }
 
-bool ControlImpl::IsKeyboardNavigationSupported()
+Toolkit::Control::KeyEventSignalType& Control::KeyEventSignal()
 {
-  return mImpl->mIsKeyboardNavigationSupported;
+  return mImpl->mKeyEventSignal;
 }
 
-void ControlImpl::SetAsKeyboardFocusGroup(bool isFocusGroup)
+bool Control::EmitKeyEventSignal( const KeyEvent& event )
 {
-  mImpl->mIsKeyboardFocusGroup = isFocusGroup;
+  // Guard against destruction during signal emission
+  Dali::Toolkit::Control handle( GetOwner() );
 
-  // The following line will be removed when the deprecated API in KeyboardFocusManager is deleted
-  KeyboardFocusManager::Get().SetAsFocusGroup(Self(), isFocusGroup);
-}
+  bool consumed = false;
 
-bool ControlImpl::IsKeyboardFocusGroup()
-{
-  return KeyboardFocusManager::Get().IsFocusGroup(Self());
+  // signals are allocated dynamically when someone connects
+  if ( !mImpl->mKeyEventSignal.Empty() )
+  {
+    consumed = mImpl->mKeyEventSignal.Emit( handle, event );
+  }
+
+  if (!consumed)
+  {
+    // Notification for derived classes
+    consumed = OnKeyEvent(event);
+  }
+
+  return consumed;
 }
 
-Actor ControlImpl::GetNextKeyboardFocusableActor(Actor currentFocusedActor, Control::KeyboardFocusNavigationDirection direction, bool loopEnabled)
+Control::Control( ControlBehaviour behaviourFlags )
+: CustomActorImpl( behaviourFlags & REQUIRES_TOUCH_EVENTS ),
+  mImpl(new Impl(*this))
 {
-  return Actor();
+  mImpl->mFlags = behaviourFlags;
 }
 
-bool ControlImpl::DoAction(BaseObject* object, const std::string& actionName, const std::vector<Property::Value>& attributes)
+void Control::Initialize()
 {
-  bool ret = false;
+  // Calling deriving classes
+  OnInitialize();
 
-  return ret;
-}
+  // Test if the no size negotiation flag is not set
+  if( ( mImpl->mFlags & NO_SIZE_NEGOTIATION ) == 0 )
+  {
+    // Size negotiate disabled by default, so turn it on for this actor
+    Self().SetRelayoutEnabled( true );
+  }
 
-void ControlImpl::DoActivatedAction(const PropertyValueContainer& attributes)
-{
-  OnActivated();
+  if( mImpl->mFlags & REQUIRES_STYLE_CHANGE_SIGNALS )
+  {
+    Toolkit::StyleManager styleManager = Toolkit::StyleManager::Get();
+
+    // Register for style changes
+    styleManager.StyleChangeSignal().Connect( this, &Control::OnStyleChange );
+
+    // SetTheme
+    GetImpl( styleManager ).ApplyThemeStyle( Toolkit::Control( GetOwner() ) );
+  }
+
+  SetRequiresHoverEvents(mImpl->mFlags & REQUIRES_HOVER_EVENTS);
+  SetRequiresMouseWheelEvents(mImpl->mFlags & REQUIRES_MOUSE_WHEEL_EVENTS);
+
+  mImpl->mInitialized = true;
 }
 
-Toolkit::Control::KeyEventSignalV2& ControlImpl::KeyEventSignal()
+void Control::EnableGestureDetection(Gesture::Type type)
 {
-  return mImpl->mKeyEventSignalV2;
+  if ( (type & Gesture::Pinch) && !mImpl->mPinchGestureDetector )
+  {
+    mImpl->mPinchGestureDetector = PinchGestureDetector::New();
+    mImpl->mPinchGestureDetector.DetectedSignal().Connect(mImpl, &Impl::PinchDetected);
+    mImpl->mPinchGestureDetector.Attach(Self());
+  }
+
+  if ( (type & Gesture::Pan) && !mImpl->mPanGestureDetector )
+  {
+    mImpl->mPanGestureDetector = PanGestureDetector::New();
+    mImpl->mPanGestureDetector.DetectedSignal().Connect(mImpl, &Impl::PanDetected);
+    mImpl->mPanGestureDetector.Attach(Self());
+  }
+
+  if ( (type & Gesture::Tap) && !mImpl->mTapGestureDetector )
+  {
+    mImpl->mTapGestureDetector = TapGestureDetector::New();
+    mImpl->mTapGestureDetector.DetectedSignal().Connect(mImpl, &Impl::TapDetected);
+    mImpl->mTapGestureDetector.Attach(Self());
+  }
+
+  if ( (type & Gesture::LongPress) && !mImpl->mLongPressGestureDetector )
+  {
+    mImpl->mLongPressGestureDetector = LongPressGestureDetector::New();
+    mImpl->mLongPressGestureDetector.DetectedSignal().Connect(mImpl, &Impl::LongPressDetected);
+    mImpl->mLongPressGestureDetector.Attach(Self());
+  }
 }
 
-void ControlImpl::SetSizePolicy( Control::SizePolicy widthPolicy, Control::SizePolicy heightPolicy )
+void Control::DisableGestureDetection(Gesture::Type type)
 {
-  bool relayoutRequest( false );
+  if ( (type & Gesture::Pinch) && mImpl->mPinchGestureDetector )
+  {
+    mImpl->mPinchGestureDetector.Detach(Self());
+    mImpl->mPinchGestureDetector.Reset();
+  }
 
-  if ( ( mImpl->mWidthPolicy != widthPolicy ) || ( mImpl->mHeightPolicy != heightPolicy ) )
+  if ( (type & Gesture::Pan) && mImpl->mPanGestureDetector )
   {
-    relayoutRequest = true;
+    mImpl->mPanGestureDetector.Detach(Self());
+    mImpl->mPanGestureDetector.Reset();
   }
 
-  mImpl->mWidthPolicy = widthPolicy;
-  mImpl->mHeightPolicy = heightPolicy;
+  if ( (type & Gesture::Tap) && mImpl->mTapGestureDetector )
+  {
+    mImpl->mTapGestureDetector.Detach(Self());
+    mImpl->mTapGestureDetector.Reset();
+  }
 
-  // Ensure RelayoutRequest is called AFTER new policies have been set.
-  if ( relayoutRequest )
+  if ( (type & Gesture::LongPress) && mImpl->mLongPressGestureDetector)
   {
-    RelayoutRequest();
+    mImpl->mLongPressGestureDetector.Detach(Self());
+    mImpl->mLongPressGestureDetector.Reset();
   }
 }
 
-void ControlImpl::GetSizePolicy( Control::SizePolicy& widthPolicy, Control::SizePolicy& heightPolicy ) const
+void Control::OnInitialize()
 {
-  widthPolicy = mImpl->mWidthPolicy;
-  heightPolicy = mImpl->mHeightPolicy;
 }
 
-void ControlImpl::SetMinimumSize( const Vector3& size )
+void Control::OnActivated()
 {
-  if ( mImpl->mMinimumSize != size )
-  {
-    mImpl->mMinimumSize = size;
-
-    // Only relayout if our control is using the minimum or range policy.
-    if ( ( mImpl->mHeightPolicy == Control::Minimum ) || ( mImpl->mWidthPolicy  == Control::Minimum ) ||
-         ( mImpl->mHeightPolicy == Control::Range   ) || ( mImpl->mWidthPolicy  == Control::Range   ) )
-    {
-      RelayoutRequest();
-    }
-  }
 }
 
-const Vector3& ControlImpl::GetMinimumSize() const
+void Control::OnStyleChange( Toolkit::StyleManager styleManager, StyleChange change )
 {
-  return mImpl->mMinimumSize;
+  // By default the control is only interested in theme (not font) changes
+  if( change.themeChange )
+  {
+    GetImpl( styleManager ).ApplyThemeStyle( Toolkit::Control( GetOwner() ) );
+  }
 }
 
-void ControlImpl::SetMaximumSize( const Vector3& size )
+void Control::OnPinch(const PinchGesture& pinch)
 {
-  if ( mImpl->mMaximumSize != size )
+  if( !( mImpl->mStartingPinchScale ) )
   {
-    mImpl->mMaximumSize = size;
+    // lazy allocate
+    mImpl->mStartingPinchScale = new Vector3;
+  }
 
-    // Only relayout if our control is using the maximum or range policy.
-    if ( ( mImpl->mHeightPolicy == Control::Maximum ) || ( mImpl->mWidthPolicy  == Control::Maximum ) ||
-         ( mImpl->mHeightPolicy == Control::Range   ) || ( mImpl->mWidthPolicy  == Control::Range   ) )
-    {
-      RelayoutRequest();
-    }
+  if( pinch.state == Gesture::Started )
+  {
+    *( mImpl->mStartingPinchScale ) = Self().GetCurrentScale();
   }
+
+  Self().SetScale( *( mImpl->mStartingPinchScale ) * pinch.scale );
 }
 
-const Vector3& ControlImpl::GetMaximumSize() const
+void Control::OnPan( const PanGesture& pan )
 {
-  return mImpl->mMaximumSize;
 }
 
-Vector3 ControlImpl::GetNaturalSize()
+void Control::OnTap(const TapGesture& tap)
 {
-  // could be overridden in derived classes.
-  return mImpl->mSetSize;
 }
 
-float ControlImpl::GetHeightForWidth( float width )
+void Control::OnLongPress( const LongPressGesture& longPress )
 {
-  // could be overridden in derived classes.
-  float height( 0.0f );
-  if ( mImpl->mSetSize.width > 0.0f )
-  {
-    height = mImpl->mSetSize.height * width / mImpl->mSetSize.width;
-  }
-  return height;
 }
 
-float ControlImpl::GetWidthForHeight( float height )
+void Control::OnControlStageConnection()
 {
-  // could be overridden in derived classes.
-  float width( 0.0f );
-  if ( mImpl->mSetSize.height > 0.0f )
-  {
-    width = mImpl->mSetSize.width * height / mImpl->mSetSize.height;
-  }
-  return width;
 }
 
-const Vector3& ControlImpl::GetControlSize() const
+void Control::OnControlStageDisconnection()
 {
-  return mImpl->mSize;
 }
 
-const Vector3& ControlImpl::GetSizeSet() const
+void Control::OnControlChildAdd( Actor& child )
 {
-  return mImpl->mSetSize;
 }
 
-void ControlImpl::SetKeyInputFocus()
+void Control::OnControlChildRemove( Actor& child )
 {
-  if( Self().OnStage() )
-  {
-    KeyInputFocusManager::Get().SetFocus(Control::DownCast(Self()));
-  }
 }
 
-bool ControlImpl::HasKeyInputFocus()
+void Control::OnControlSizeSet( const Vector3& size )
 {
-  bool result = false;
-  if( Self().OnStage() )
-  {
-    result = KeyInputFocusManager::Get().IsKeyboardListener(Control::DownCast(Self()));
-  }
-  return result;
 }
 
-void ControlImpl::ClearKeyInputFocus()
+void Control::OnCalculateRelayoutSize( Dimension::Type dimension )
 {
-  if( Self().OnStage() )
-  {
-    KeyInputFocusManager::Get().RemoveFocus(Control::DownCast(Self()));
-  }
 }
 
-void ControlImpl::RelayoutRequest()
+void Control::OnLayoutNegotiated( float size, Dimension::Type dimension )
 {
-  Internal::RelayoutController::Get().Request();
 }
 
-void ControlImpl::Relayout( Vector2 size, ActorSizeContainer& container )
+void Control::OnRelayout( const Vector2& size, RelayoutContainer& container )
 {
-  // Avoids relayout again when OnSizeSet callback arrives.
+  for( unsigned int i = 0, numChildren = Self().GetChildCount(); i < numChildren; ++i )
   {
-    SetSizeLock lock( mImpl->mLockSetSize );
-    Self().SetSize( size );
+    container.Add( Self().GetChildAt( i ), size );
   }
-
-  // Only relayout controls which requested to be relaid out.
-  OnRelaidOut( size, container );
 }
 
-void ControlImpl::Relayout( Actor actor, Vector2 size, ActorSizeContainer& container )
+void Control::OnSetResizePolicy( ResizePolicy::Type policy, Dimension::Type dimension )
 {
-  if ( actor )
-  {
-    Control control( Control::DownCast( actor ) );
-    if( control )
-    {
-      control.GetImplementation().NegotiateSize( size, container );
-    }
-    else
-    {
-      container.push_back( ActorSizePair( actor, size ) );
-    }
-  }
 }
 
-void ControlImpl::OnRelaidOut( Vector2 size, ActorSizeContainer& container )
+void Control::OnKeyInputFocusGained()
 {
-  unsigned int numChildren = Self().GetChildCount();
+  // Do Nothing
+}
 
-  for( unsigned int i=0; i<numChildren; ++i )
-  {
-    container.push_back( ActorSizePair( Self().GetChildAt(i), size ) );
-  }
+void Control::OnKeyInputFocusLost()
+{
+  // Do Nothing
 }
 
-void ControlImpl::NegotiateSize( Vector2 allocatedSize, ActorSizeContainer& container )
+void Control::OnSizeAnimation(Animation& animation, const Vector3& targetSize)
 {
-  Vector2 size;
+  // @todo consider animating negotiated child sizes to target size
+}
 
-  if ( mImpl->mWidthPolicy == Control::Fixed )
-  {
-    if ( mImpl->mHeightPolicy == Control::Fixed )
-    {
-      // If a control says it has a fixed size, then use the size set by the application / control.
-      Vector2 setSize( mImpl->mSetSize );
-      if ( setSize != Vector2::ZERO )
-      {
-        size = setSize;
+bool Control::OnTouchEvent(const TouchEvent& event)
+{
+  return false; // Do not consume
+}
 
-        // Policy is set to Fixed, so if the application / control has not set one of the dimensions,
-        // then we should use the natural size of the control rather than the full allocation.
-        if ( EqualsZero( size.width ) )
-        {
-          size.width = GetWidthForHeight( size.height );
-        }
-        else if ( EqualsZero( size.height ) )
-        {
-          size.height = GetHeightForWidth( size.width );
-        }
-      }
-      else
-      {
-        // If that is not set then set the size to the control's natural size
-        size = Vector2( GetNaturalSize() );
-      }
-    }
-    else
-    {
-      // Width is fixed so if the application / control has set it, then use that.
-      if ( !EqualsZero( mImpl->mSetSize.width ) )
-      {
-        size.width = mImpl->mSetSize.width;
-      }
-      else
-      {
-        // Otherwise, set the width to what has been allocated.
-        size.width = allocatedSize.width;
-      }
+bool Control::OnHoverEvent(const HoverEvent& event)
+{
+  return false; // Do not consume
+}
 
-      // Height is flexible so ask control what the height should be for our width.
-      size.height = GetHeightForWidth( size.width );
+bool Control::OnKeyEvent(const KeyEvent& event)
+{
+  return false; // Do not consume
+}
 
-      // Ensure height is within our policy rules
-      size.height = Calculate( mImpl->mHeightPolicy, mImpl->mMinimumSize.height, mImpl->mMaximumSize.height, size.height );
-    }
-  }
-  else
-  {
-    if ( mImpl->mHeightPolicy == Control::Fixed )
-    {
-      // Height is fixed so if the application / control has set it, then use that.
-      if ( !EqualsZero( mImpl->mSetSize.height ) )
-      {
-        size.height = mImpl->mSetSize.height;
-      }
-      else
-      {
-        // Otherwise, set the height to what has been allocated.
-        size.height = allocatedSize.height;
-      }
+bool Control::OnMouseWheelEvent(const MouseWheelEvent& event)
+{
+  return false; // Do not consume
+}
 
-      // Width is flexible so ask control what the width should be for our height.
-      size.width = GetWidthForHeight( size.height );
+void Control::OnStageConnection()
+{
+  // Notify derived classes.
+  OnControlStageConnection();
+}
 
-      // Ensure width is within our policy rules
-      size.width = Calculate( mImpl->mWidthPolicy, mImpl->mMinimumSize.width, mImpl->mMaximumSize.width, size.width );
-    }
-    else
-    {
-      // Width and height are BOTH flexible.
-      // Calculate the width and height using the policy rules.
-      size.width = Calculate( mImpl->mWidthPolicy, mImpl->mMinimumSize.width, mImpl->mMaximumSize.width, allocatedSize.width );
-      size.height = Calculate( mImpl->mHeightPolicy, mImpl->mMinimumSize.height, mImpl->mMaximumSize.height, allocatedSize.height );
-    }
-  }
+void Control::OnStageDisconnection()
+{
+  // Notify derived classes
+  OnControlStageDisconnection();
+}
 
-  // If the width has not been set, then set to the allocated width.
-  // Also if the width set is greater than the allocated, then set to allocated (no exceed support).
-  if ( EqualsZero( size.width ) || ( size.width > allocatedSize.width ) )
+void Control::OnChildAdd(Actor& child)
+{
+  // If this is the background actor, then we do not want to relayout or inform deriving classes
+  if ( mImpl->mBackground && ( child == mImpl->mBackground->actor ) )
   {
-    size.width = allocatedSize.width;
+    return;
   }
 
-  // If the height has not been set, then set to the allocated height.
-  // Also if the height set is greater than the allocated, then set to allocated (no exceed support).
-  if ( EqualsZero( size.height ) || ( size.height > allocatedSize.height ) )
+  // Notify derived classes.
+  OnControlChildAdd( child );
+}
+
+void Control::OnChildRemove(Actor& child)
+{
+  // If this is the background actor, then we do not want to relayout or inform deriving classes
+  if ( mImpl->mBackground && ( child == mImpl->mBackground->actor ) )
   {
-    size.height = allocatedSize.height;
+    return;
   }
 
-  DALI_LOG_INFO( gLogFilter, Debug::Verbose,
-                 "%p: Natural: [%.2f, %.2f] Allocated: [%.2f, %.2f] Set: [%.2f, %.2f]\n",
-                 Self().GetObjectPtr(),
-                 GetNaturalSize().x, GetNaturalSize().y,
-                 allocatedSize.x, allocatedSize.y,
-                 size.x, size.y );
-
-  Relayout( size, container );
+  // Notify derived classes.
+  OnControlChildRemove( child );
 }
 
-bool ControlImpl::EmitKeyEventSignal( const KeyEvent& event )
+void Control::OnSizeSet(const Vector3& targetSize)
 {
-  // Guard against destruction during signal emission
-  Dali::Toolkit::Control handle( GetOwner() );
-
-  bool consumed = false;
-
-  // signals are allocated dynamically when someone connects
-  if ( !mImpl->mKeyEventSignalV2.Empty() )
+  if( targetSize != mImpl->mNaturalSize )
   {
-    consumed = mImpl->mKeyEventSignalV2.Emit( handle, event );
+    // Only updates size if set through Actor's API
+    mImpl->mNaturalSize = targetSize;
   }
 
-  if (!consumed)
+  if( targetSize != mImpl->mCurrentSize )
   {
-    // Notification for derived classes
-    consumed = OnKeyEvent(event);
-  }
+    // Update control size.
+    mImpl->mCurrentSize = targetSize;
 
-  return consumed;
+    // Notify derived classes.
+    OnControlSizeSet( targetSize );
+  }
 }
 
-void ControlImpl::SignalConnected( SlotObserver* slotObserver, CallbackBase* callback )
+void Control::SignalConnected( SlotObserver* slotObserver, CallbackBase* callback )
 {
   mImpl->SignalConnected( slotObserver, callback );
 }
 
-void ControlImpl::SignalDisconnected( SlotObserver* slotObserver, CallbackBase* callback )
+void Control::SignalDisconnected( SlotObserver* slotObserver, CallbackBase* callback )
 {
   mImpl->SignalDisconnected( slotObserver, callback );
 }
 
-std::size_t ControlImpl::GetConnectionCount() const
-{
-  return mImpl->GetConnectionCount();
-}
-
-ControlImpl::ControlImpl( bool requiresTouchEvents )
-: CustomActorImpl( requiresTouchEvents ),
-  mImpl(new Impl(*this))
-{
-}
+} // namespace Internal
 
 } // namespace Toolkit