TextController re-organization.
[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / controls / text-controls / text-field-impl.cpp
index a0417df..4ca9a85 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2016 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.
 #include <dali/public-api/common/stage.h>
 #include <dali/public-api/images/resource-image.h>
 #include <dali/devel-api/adaptor-framework/virtual-keyboard.h>
-#include <dali/devel-api/object/type-registry-helper.h>
+#include <dali/public-api/object/type-registry-helper.h>
+#include <dali/integration-api/adaptors/adaptor.h>
 #include <dali/integration-api/debug.h>
 
 // INTERNAL INCLUDES
 #include <dali-toolkit/public-api/text/rendering-backend.h>
 #include <dali-toolkit/devel-api/controls/control-depth-index-ranges.h>
 #include <dali-toolkit/internal/text/rendering/text-backend.h>
+#include <dali-toolkit/internal/text/text-effects-style.h>
 #include <dali-toolkit/internal/text/text-font-style.h>
 #include <dali-toolkit/internal/text/text-view.h>
 #include <dali-toolkit/internal/styling/style-manager-impl.h>
@@ -123,9 +125,18 @@ DALI_PROPERTY_REGISTRATION( Toolkit, TextField, "enableMarkup",
 DALI_PROPERTY_REGISTRATION( Toolkit, TextField, "inputFontFamily",                      STRING,    INPUT_FONT_FAMILY                    )
 DALI_PROPERTY_REGISTRATION( Toolkit, TextField, "inputFontStyle",                       STRING,    INPUT_FONT_STYLE                     )
 DALI_PROPERTY_REGISTRATION( Toolkit, TextField, "inputPointSize",                       FLOAT,     INPUT_POINT_SIZE                     )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextField, "underline",                            STRING,    UNDERLINE                            )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextField, "inputUnderline",                       STRING,    INPUT_UNDERLINE                      )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextField, "shadow",                               STRING,    SHADOW                               )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextField, "inputShadow",                          STRING,    INPUT_SHADOW                         )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextField, "emboss",                               STRING,    EMBOSS                               )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextField, "inputEmboss",                          STRING,    INPUT_EMBOSS                         )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextField, "outline",                              STRING,    OUTLINE                              )
+DALI_PROPERTY_REGISTRATION( Toolkit, TextField, "inputOutline",                         STRING,    INPUT_OUTLINE                        )
 
 DALI_SIGNAL_REGISTRATION( Toolkit, TextField, "textChanged",        SIGNAL_TEXT_CHANGED )
 DALI_SIGNAL_REGISTRATION( Toolkit, TextField, "maxLengthReached",   SIGNAL_MAX_LENGTH_REACHED )
+DALI_SIGNAL_REGISTRATION( Toolkit, TextField, "inputStyleChanged",  SIGNAL_INPUT_STYLE_CHANGED )
 
 DALI_TYPE_REGISTRATION_END()
 
@@ -164,11 +175,23 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
         int backend = value.Get< int >();
         DALI_LOG_INFO( gLogFilter, Debug::Verbose, "TextField %p RENDERING_BACKEND %d\n", impl.mController.Get(), backend );
 
+#ifndef ENABLE_VECTOR_BASED_TEXT_RENDERING
+        if( Text::RENDERING_VECTOR_BASED == backend )
+        {
+          backend = TextAbstraction::BITMAP_GLYPH; // Fallback to bitmap-based rendering
+        }
+#endif
         if( impl.mRenderingBackend != backend )
         {
           impl.mRenderingBackend = backend;
           impl.mRenderer.Reset();
-          impl.RequestTextRelayout();
+
+          if( impl.mController )
+          {
+            // When using the vector-based rendering, the size of the GLyphs are different
+            TextAbstraction::GlyphType glyphType = (Text::RENDERING_VECTOR_BASED == impl.mRenderingBackend) ? TextAbstraction::VECTOR_GLYPH : TextAbstraction::BITMAP_GLYPH;
+            impl.mController->SetGlyphType( glyphType );
+          }
         }
         break;
       }
@@ -190,7 +213,7 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
           const std::string text = value.Get< std::string >();
           DALI_LOG_INFO( gLogFilter, Debug::General, "TextField %p PLACEHOLDER_TEXT %s\n", impl.mController.Get(), text.c_str() );
 
-          impl.mController->SetPlaceholderText( PLACEHOLDER_TYPE_INACTIVE, text );
+          impl.mController->SetPlaceholderText( Controller::PLACEHOLDER_TYPE_INACTIVE, text );
         }
         break;
       }
@@ -201,7 +224,7 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
           const std::string text = value.Get< std::string >();
           DALI_LOG_INFO( gLogFilter, Debug::General, "TextField %p PLACEHOLDER_TEXT_FOCUSED %s\n", impl.mController.Get(), text.c_str() );
 
-          impl.mController->SetPlaceholderText( PLACEHOLDER_TYPE_ACTIVE, text );
+          impl.mController->SetPlaceholderText( Controller::PLACEHOLDER_TYPE_ACTIVE, text );
         }
         break;
       }
@@ -606,6 +629,78 @@ void TextField::SetProperty( BaseObject* object, Property::Index index, const Pr
         }
         break;
       }
+      case Toolkit::TextField::Property::UNDERLINE:
+      {
+        const bool update = SetUnderlineProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
+        if( update )
+        {
+          impl.mRenderer.Reset();
+        }
+        break;
+      }
+      case Toolkit::TextField::Property::INPUT_UNDERLINE:
+      {
+        const bool update = SetUnderlineProperties( impl.mController, value, Text::EffectStyle::INPUT );
+        if( update )
+        {
+          impl.mRenderer.Reset();
+        }
+        break;
+      }
+      case Toolkit::TextField::Property::SHADOW:
+      {
+        const bool update = SetShadowProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
+        if( update )
+        {
+          impl.mRenderer.Reset();
+        }
+        break;
+      }
+      case Toolkit::TextField::Property::INPUT_SHADOW:
+      {
+        const bool update = SetShadowProperties( impl.mController, value, Text::EffectStyle::INPUT );
+        if( update )
+        {
+          impl.mRenderer.Reset();
+        }
+        break;
+      }
+      case Toolkit::TextField::Property::EMBOSS:
+      {
+        const bool update = SetEmbossProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
+        if( update )
+        {
+          impl.mRenderer.Reset();
+        }
+        break;
+      }
+      case Toolkit::TextField::Property::INPUT_EMBOSS:
+      {
+        const bool update = SetEmbossProperties( impl.mController, value, Text::EffectStyle::INPUT );
+        if( update )
+        {
+          impl.mRenderer.Reset();
+        }
+        break;
+      }
+      case Toolkit::TextField::Property::OUTLINE:
+      {
+        const bool update = SetOutlineProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
+        if( update )
+        {
+          impl.mRenderer.Reset();
+        }
+        break;
+      }
+      case Toolkit::TextField::Property::INPUT_OUTLINE:
+      {
+        const bool update = SetOutlineProperties( impl.mController, value, Text::EffectStyle::INPUT );
+        if( update )
+        {
+          impl.mRenderer.Reset();
+        }
+        break;
+      }
     } // switch
   } // textfield
 }
@@ -643,7 +738,7 @@ Property::Value TextField::GetProperty( BaseObject* object, Property::Index inde
         if( impl.mController )
         {
           std::string text;
-          impl.mController->GetPlaceholderText( PLACEHOLDER_TYPE_INACTIVE, text );
+          impl.mController->GetPlaceholderText( Controller::PLACEHOLDER_TYPE_INACTIVE, text );
           value = text;
         }
         break;
@@ -653,7 +748,7 @@ Property::Value TextField::GetProperty( BaseObject* object, Property::Index inde
         if( impl.mController )
         {
           std::string text;
-          impl.mController->GetPlaceholderText( PLACEHOLDER_TYPE_ACTIVE, text );
+          impl.mController->GetPlaceholderText( Controller::PLACEHOLDER_TYPE_ACTIVE, text );
           value = text;
         }
         break;
@@ -926,6 +1021,46 @@ Property::Value TextField::GetProperty( BaseObject* object, Property::Index inde
         }
         break;
       }
+      case Toolkit::TextField::Property::UNDERLINE:
+      {
+        GetUnderlineProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
+        break;
+      }
+      case Toolkit::TextField::Property::INPUT_UNDERLINE:
+      {
+        GetUnderlineProperties( impl.mController, value, Text::EffectStyle::INPUT );
+        break;
+      }
+      case Toolkit::TextField::Property::SHADOW:
+      {
+        GetShadowProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
+        break;
+      }
+      case Toolkit::TextField::Property::INPUT_SHADOW:
+      {
+        GetShadowProperties( impl.mController, value, Text::EffectStyle::INPUT );
+        break;
+      }
+      case Toolkit::TextField::Property::EMBOSS:
+      {
+        GetEmbossProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
+        break;
+      }
+      case Toolkit::TextField::Property::INPUT_EMBOSS:
+      {
+        GetEmbossProperties( impl.mController, value, Text::EffectStyle::INPUT );
+        break;
+      }
+      case Toolkit::TextField::Property::OUTLINE:
+      {
+        GetOutlineProperties( impl.mController, value, Text::EffectStyle::DEFAULT );
+        break;
+      }
+      case Toolkit::TextField::Property::INPUT_OUTLINE:
+      {
+        GetOutlineProperties( impl.mController, value, Text::EffectStyle::INPUT );
+        break;
+      }
     } //switch
   }
 
@@ -947,6 +1082,10 @@ bool TextField::DoConnectSignal( BaseObject* object, ConnectionTrackerInterface*
   {
     field.MaxLengthReachedSignal().Connect( tracker, functor );
   }
+  else if( 0 == strcmp( signalName.c_str(), SIGNAL_INPUT_STYLE_CHANGED ) )
+  {
+    field.InputStyleChangedSignal().Connect( tracker, functor );
+  }
   else
   {
     // signalName does not match any signal
@@ -966,24 +1105,43 @@ Toolkit::TextField::MaxLengthReachedSignalType& TextField::MaxLengthReachedSigna
   return mMaxLengthReachedSignal;
 }
 
+Toolkit::TextField::InputStyleChangedSignalType& TextField::InputStyleChangedSignal()
+{
+  return mInputStyleChangedSignal;
+}
+
 void TextField::OnInitialize()
 {
   Actor self = Self();
 
   mController = Text::Controller::New( *this );
 
+  // When using the vector-based rendering, the size of the GLyphs are different
+  TextAbstraction::GlyphType glyphType = (Text::RENDERING_VECTOR_BASED == mRenderingBackend) ? TextAbstraction::VECTOR_GLYPH : TextAbstraction::BITMAP_GLYPH;
+  mController->SetGlyphType( glyphType );
+
   mDecorator = Text::Decorator::New( *mController,
                                      *mController );
 
   mController->GetLayoutEngine().SetLayout( LayoutEngine::SINGLE_LINE_BOX );
 
+  // Enables the text input.
   mController->EnableTextInput( mDecorator );
 
+  // Enables the horizontal scrolling after the text input has been enabled.
+  mController->SetHorizontalScrollEnabled( true );
+
+  // Disables the vertical scrolling.
+  mController->SetVerticalScrollEnabled( false );
+
+  // Disable the smooth handle panning.
+  mController->SetSmoothHandlePanEnabled( false );
+
   // Forward input events to controller
   EnableGestureDetection( static_cast<Gesture::Type>( Gesture::Tap | Gesture::Pan | Gesture::LongPress ) );
   GetTapGestureDetector().SetMaximumTapsRequired( 2 );
 
-  self.TouchedSignal().Connect( this, &TextField::OnTouched );
+  self.TouchSignal().Connect( this, &TextField::OnTouched );
 
   // Set BoundingBox to stage size if not already set.
   Rect<int> boundingBox;
@@ -1008,34 +1166,28 @@ void TextField::OnStyleChange( Toolkit::StyleManager styleManager, StyleChange::
 {
   DALI_LOG_INFO( gLogFilter, Debug::Verbose, "TextField::OnStyleChange\n");
 
-   switch ( change )
-   {
-     case StyleChange::DEFAULT_FONT_CHANGE:
-     {
-       DALI_LOG_INFO( gLogFilter, Debug::Verbose, "TextField::OnStyleChange DEFAULT_FONT_CHANGE\n");
-       std::string newFont = styleManager.GetDefaultFontFamily();
-       // Property system did not set the font so should update it.
-       mController->UpdateAfterFontChange( newFont );
-       break;
-     }
-
-     case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
-     {
-       DALI_LOG_INFO( gLogFilter, Debug::General, "TextField::OnStyleChange StyleChange::DEFAULT_FONT_SIZE_CHANGE (%f)\n", mController->GetDefaultPointSize() );
-
-       if ( (mController->GetDefaultPointSize() <= 0.0f) ) // If DefaultPointSize not set by Property system it will be 0.0f
-       {
-         // Property system did not set the PointSize so should update it.
-         // todo instruct text-controller to update model
-       }
-       break;
-     }
-     case StyleChange::THEME_CHANGE:
-     {
-       GetImpl( styleManager ).ApplyThemeStyle( Toolkit::Control( GetOwner() ) );
-       break;
-     }
-   }
+  switch ( change )
+  {
+    case StyleChange::DEFAULT_FONT_CHANGE:
+    {
+      DALI_LOG_INFO( gLogFilter, Debug::Verbose, "TextField::OnStyleChange DEFAULT_FONT_CHANGE\n");
+      const std::string& newFont = GetImpl( styleManager ).GetDefaultFontFamily();
+      // Property system did not set the font so should update it.
+      mController->UpdateAfterFontChange( newFont );
+      break;
+    }
+
+    case StyleChange::DEFAULT_FONT_SIZE_CHANGE:
+    {
+      GetImpl( styleManager ).ApplyThemeStyle( Toolkit::Control( GetOwner() ) );
+      break;
+    }
+    case StyleChange::THEME_CHANGE:
+    {
+      GetImpl( styleManager ).ApplyThemeStyle( Toolkit::Control( GetOwner() ) );
+      break;
+    }
+  }
 }
 
 Vector3 TextField::GetNaturalSize()
@@ -1052,12 +1204,15 @@ void TextField::OnRelayout( const Vector2& size, RelayoutContainer& container )
 {
   DALI_LOG_INFO( gLogFilter, Debug::Verbose, "TextField OnRelayout\n");
 
-  if( mController->Relayout( size ) ||
+  const Text::Controller::UpdateTextType updateTextType = mController->Relayout( size );
+
+  if( ( Text::Controller::NONE_UPDATED != updateTextType ) ||
       !mRenderer )
   {
     DALI_LOG_INFO( gLogFilter, Debug::Verbose, "TextField::OnRelayout %p Displaying new contents\n", mController.Get() );
 
-    if( mDecorator )
+    if( mDecorator &&
+        ( Text::Controller::NONE_UPDATED != ( Text::Controller::DECORATOR_UPDATED & updateTextType ) ) )
     {
       mDecorator->Relayout( size );
     }
@@ -1067,31 +1222,54 @@ void TextField::OnRelayout( const Vector2& size, RelayoutContainer& container )
       mRenderer = Backend::Get().NewRenderer( mRenderingBackend );
     }
 
-    EnableClipping( (Dali::Toolkit::TextField::EXCEED_POLICY_CLIP == mExceedPolicy), size );
-    RenderText();
+    EnableClipping( ( Dali::Toolkit::TextField::EXCEED_POLICY_CLIP == mExceedPolicy ), size );
+    RenderText( updateTextType );
+  }
+
+  // The text-field emits signals when the input style changes. These changes of style are
+  // detected during the relayout process (size negotiation), i.e after the cursor has been moved. Signals
+  // can't be emitted during the size negotiation as the callbacks may update the UI.
+  // The text-field adds an idle callback to the adaptor to emit the signals after the size negotiation.
+  if( !mController->IsInputStyleChangedSignalsQueueEmpty() )
+  {
+    if( Adaptor::IsAvailable() )
+    {
+      Adaptor& adaptor = Adaptor::Get();
+
+      if( NULL == mIdleCallback )
+      {
+        // @note: The callback manager takes the ownership of the callback object.
+        mIdleCallback = MakeCallback( this, &TextField::OnIdleSignal );
+        adaptor.AddIdle( mIdleCallback );
+      }
+    }
   }
 }
 
-void TextField::RenderText()
+  void TextField::RenderText( Text::Controller::UpdateTextType updateTextType )
 {
   Actor self = Self();
   Actor renderableActor;
-  if( mRenderer )
-  {
-    renderableActor = mRenderer->Render( mController->GetView(), DepthIndex::TEXT );
-  }
 
-  if( renderableActor != mRenderableActor )
+  if( Text::Controller::NONE_UPDATED != ( Text::Controller::MODEL_UPDATED & updateTextType ) )
   {
-    UnparentAndReset( mRenderableActor );
-    mRenderableActor = renderableActor;
+    if( mRenderer )
+    {
+      renderableActor = mRenderer->Render( mController->GetView(), DepthIndex::TEXT );
+    }
+
+    if( renderableActor != mRenderableActor )
+    {
+      UnparentAndReset( mRenderableActor );
+      mRenderableActor = renderableActor;
+    }
   }
 
   if( mRenderableActor )
   {
-    const Vector2 offset = mController->GetScrollPosition() + mController->GetAlignmentOffset();
+    const Vector2& scrollOffset = mController->GetScrollPosition();
 
-    mRenderableActor.SetPosition( offset.x, offset.y );
+    mRenderableActor.SetPosition( scrollOffset.x, scrollOffset.y );
 
     Actor clipRootActor;
     if( mClipper )
@@ -1264,11 +1442,61 @@ void TextField::TextChanged()
   mTextChangedSignal.Emit( handle );
 }
 
+void TextField::InputStyleChanged( Text::InputStyle::Mask inputStyleMask )
+{
+  Dali::Toolkit::TextField handle( GetOwner() );
+
+  Toolkit::TextField::InputStyle::Mask fieldInputStyleMask = Toolkit::TextField::InputStyle::NONE;
+
+  if( InputStyle::NONE != static_cast<InputStyle::Mask>( inputStyleMask & InputStyle::INPUT_COLOR ) )
+  {
+    fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>( fieldInputStyleMask | Toolkit::TextField::InputStyle::COLOR );
+  }
+  if( InputStyle::NONE != static_cast<InputStyle::Mask>( inputStyleMask & InputStyle::INPUT_FONT_FAMILY ) )
+  {
+    fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>( fieldInputStyleMask | Toolkit::TextField::InputStyle::FONT_FAMILY );
+  }
+  if( InputStyle::NONE != static_cast<InputStyle::Mask>( inputStyleMask & InputStyle::INPUT_POINT_SIZE ) )
+  {
+    fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>( fieldInputStyleMask | Toolkit::TextField::InputStyle::POINT_SIZE );
+  }
+  if( InputStyle::NONE != static_cast<InputStyle::Mask>( inputStyleMask & InputStyle::INPUT_FONT_WEIGHT ) )
+  {
+    fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>( fieldInputStyleMask | Toolkit::TextField::InputStyle::FONT_STYLE );
+  }
+  if( InputStyle::NONE != static_cast<InputStyle::Mask>( inputStyleMask & InputStyle::INPUT_FONT_WIDTH ) )
+  {
+    fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>( fieldInputStyleMask | Toolkit::TextField::InputStyle::FONT_STYLE );
+  }
+  if( InputStyle::NONE != static_cast<InputStyle::Mask>( inputStyleMask & InputStyle::INPUT_FONT_SLANT ) )
+  {
+    fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>( fieldInputStyleMask | Toolkit::TextField::InputStyle::FONT_STYLE );
+  }
+  if( InputStyle::NONE != static_cast<InputStyle::Mask>( inputStyleMask & InputStyle::INPUT_UNDERLINE ) )
+  {
+    fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>( fieldInputStyleMask | Toolkit::TextField::InputStyle::UNDERLINE );
+  }
+  if( InputStyle::NONE != static_cast<InputStyle::Mask>( inputStyleMask & InputStyle::INPUT_SHADOW ) )
+  {
+    fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>( fieldInputStyleMask | Toolkit::TextField::InputStyle::SHADOW );
+  }
+  if( InputStyle::NONE != static_cast<InputStyle::Mask>( inputStyleMask & InputStyle::INPUT_EMBOSS ) )
+  {
+    fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>( fieldInputStyleMask | Toolkit::TextField::InputStyle::EMBOSS );
+  }
+  if( InputStyle::NONE != static_cast<InputStyle::Mask>( inputStyleMask & InputStyle::INPUT_OUTLINE ) )
+  {
+    fieldInputStyleMask = static_cast<Toolkit::TextField::InputStyle::Mask>( fieldInputStyleMask | Toolkit::TextField::InputStyle::OUTLINE );
+  }
+
+  mInputStyleChangedSignal.Emit( handle, fieldInputStyleMask );
+}
+
 void TextField::OnStageConnect( Dali::Actor actor )
 {
   if ( mHasBeenStaged )
   {
-    RenderText();
+    RenderText( static_cast<Text::Controller::UpdateTextType>( Text::Controller::MODEL_UPDATED | Text::Controller::DECORATOR_UPDATED ) );
   }
   else
   {
@@ -1316,7 +1544,7 @@ void TextField::EnableClipping( bool clipping, const Vector2& size )
 
         mClipper = Clipper::New( size );
         self.Add( mClipper->GetRootActor() );
-        self.Add( mClipper->GetImageActor() );
+        self.Add( mClipper->GetImageView() );
       }
       else if ( mClipper )
       {
@@ -1326,7 +1554,7 @@ void TextField::EnableClipping( bool clipping, const Vector2& size )
   }
   else
   {
-    // Note - this will automatically remove the root & image actors
+    // Note - this will automatically remove the root actor & the image view
     mClipper.Reset();
   }
 }
@@ -1356,19 +1584,29 @@ void TextField::OnStageConnection( int depth )
   // Call the Control::OnStageConnection() to set the depth of the background.
   Control::OnStageConnection( depth );
 
-  // Sets the depth to the renderers inside the text's decorator.
+  // Sets the depth to the visuals inside the text's decorator.
   mDecorator->SetTextDepth( depth );
 
   // The depth of the text renderer is set in the RenderText() called from OnRelayout().
 }
 
-bool TextField::OnTouched( Actor actor, const TouchEvent& event )
+bool TextField::OnTouched( Actor actor, const TouchData& touch )
 {
   return true;
 }
 
+void TextField::OnIdleSignal()
+{
+  // Emits the change of input style signals.
+  mController->ProcessInputStyleChangedSignals();
+
+  // Set the pointer to null as the callback manager deletes the callback after execute it.
+  mIdleCallback = NULL;
+}
+
 TextField::TextField()
 : Control( ControlBehaviour( REQUIRES_STYLE_CHANGE_SIGNALS ) ),
+  mIdleCallback( NULL ),
   mRenderingBackend( DEFAULT_RENDERING_BACKEND ),
   mExceedPolicy( Dali::Toolkit::TextField::EXCEED_POLICY_CLIP ),
   mHasBeenStaged( false )
@@ -1378,6 +1616,11 @@ TextField::TextField()
 TextField::~TextField()
 {
   mClipper.Reset();
+
+  if( ( NULL != mIdleCallback ) && Adaptor::IsAvailable() )
+  {
+    Adaptor::Get().RemoveIdle( mIdleCallback );
+  }
 }
 
 } // namespace Internal