X-Git-Url: http://review.tizen.org/git/?p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git;a=blobdiff_plain;f=dali-toolkit%2Finternal%2Ftext%2Ftext-controller-impl.cpp;h=621d50ea064f7dc0a53fb0367963ce52d5ddeebd;hp=f77714c712f4698532cb1ef98614ded652a3675a;hb=771ece63d9ad24a6835cbe46c8137db2ced47356;hpb=ebc5e24273f0d9042194e533a09d989ff6f7b196

diff --git a/dali-toolkit/internal/text/text-controller-impl.cpp b/dali-toolkit/internal/text/text-controller-impl.cpp
index f77714c..621d50e 100644
--- a/dali-toolkit/internal/text/text-controller-impl.cpp
+++ b/dali-toolkit/internal/text/text-controller-impl.cpp
@@ -128,14 +128,15 @@ EventData::EventData( DecoratorPtr decorator )
   mDecoratorUpdated( false ),
   mCursorBlinkEnabled( true ),
   mGrabHandleEnabled( true ),
-  mGrabHandlePopupEnabled( false ),
-  mSelectionEnabled( false ),
+  mGrabHandlePopupEnabled( true ),
+  mSelectionEnabled( true ),
   mHorizontalScrollingEnabled( true ),
   mVerticalScrollingEnabled( false ),
   mUpdateCursorPosition( false ),
   mUpdateLeftSelectionPosition( false ),
   mUpdateRightSelectionPosition( false ),
-  mScrollAfterUpdateCursorPosition( false )
+  mScrollAfterUpdatePosition( false ),
+  mScrollAfterDelete( false )
 {}
 
 EventData::~EventData()
@@ -192,48 +193,73 @@ bool Controller::Impl::ProcessInputEvents()
 
     UpdateCursorPosition();
 
-    if( mEventData->mScrollAfterUpdateCursorPosition )
+    if( mEventData->mScrollAfterUpdatePosition )
     {
-      ScrollToMakeCursorVisible();
-      mEventData->mScrollAfterUpdateCursorPosition = false;
+      const Vector2& primaryCursorPosition = mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
+
+      ScrollToMakePositionVisible( primaryCursorPosition );
+      mEventData->mScrollAfterUpdatePosition = false;
     }
 
     mEventData->mDecoratorUpdated = true;
     mEventData->mUpdateCursorPosition = false;
   }
-  else if( mEventData->mUpdateLeftSelectionPosition )
+  else if( mEventData->mScrollAfterDelete )
   {
-    UpdateSelectionHandle( LEFT_SELECTION_HANDLE );
-
-    if( mEventData->mScrollAfterUpdateCursorPosition )
-    {
-      ScrollToMakeCursorVisible();
-      mEventData->mScrollAfterUpdateCursorPosition = false;
-    }
-
+    ScrollTextToMatchCursor();
     mEventData->mDecoratorUpdated = true;
-    mEventData->mUpdateLeftSelectionPosition = false;
+    mEventData->mScrollAfterDelete = false;
   }
-  else if( mEventData->mUpdateRightSelectionPosition )
+  else
   {
-    UpdateSelectionHandle( RIGHT_SELECTION_HANDLE );
+    bool leftScroll = false;
+    bool rightScroll = false;
 
-    if( mEventData->mScrollAfterUpdateCursorPosition )
+    if( mEventData->mUpdateLeftSelectionPosition )
     {
-      ScrollToMakeCursorVisible();
-      mEventData->mScrollAfterUpdateCursorPosition = false;
+      UpdateSelectionHandle( LEFT_SELECTION_HANDLE );
+
+      if( mEventData->mScrollAfterUpdatePosition )
+      {
+        const Vector2& leftHandlePosition = mEventData->mDecorator->GetPosition( LEFT_SELECTION_HANDLE );
+
+        ScrollToMakePositionVisible( leftHandlePosition );
+        leftScroll = true;
+      }
+
+      mEventData->mDecoratorUpdated = true;
+      mEventData->mUpdateLeftSelectionPosition = false;
     }
 
-    mEventData->mDecoratorUpdated = true;
-    mEventData->mUpdateRightSelectionPosition = false;
+    if( mEventData->mUpdateRightSelectionPosition )
+    {
+      UpdateSelectionHandle( RIGHT_SELECTION_HANDLE );
+
+      if( mEventData->mScrollAfterUpdatePosition )
+      {
+        const Vector2& rightHandlePosition = mEventData->mDecorator->GetPosition( RIGHT_SELECTION_HANDLE );
+
+        ScrollToMakePositionVisible( rightHandlePosition );
+        rightScroll = true;
+      }
+
+      mEventData->mDecoratorUpdated = true;
+      mEventData->mUpdateRightSelectionPosition = false;
+    }
+
+    if( leftScroll || rightScroll )
+    {
+      mEventData->mScrollAfterUpdatePosition = false;
+    }
   }
 
   mEventData->mEventQueue.clear();
 
   DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::ProcessInputEvents\n" );
 
-  bool decoratorUpdated = mEventData->mDecoratorUpdated;
+  const bool decoratorUpdated = mEventData->mDecoratorUpdated;
   mEventData->mDecoratorUpdated = false;
+
   return decoratorUpdated;
 }
 
@@ -431,7 +457,7 @@ void Controller::Impl::OnCursorKeyEvent( const Event& event )
   }
 
   mEventData->mUpdateCursorPosition = true;
-  mEventData->mScrollAfterUpdateCursorPosition = true;
+  mEventData->mScrollAfterUpdatePosition = true;
 }
 
 void Controller::Impl::OnTapEvent( const Event& event )
@@ -456,12 +482,21 @@ void Controller::Impl::OnTapEvent( const Event& event )
       }
 
       mEventData->mUpdateCursorPosition = true;
-      mEventData->mScrollAfterUpdateCursorPosition = true;
+      mEventData->mScrollAfterUpdatePosition = true;
     }
     else if( mEventData->mSelectionEnabled &&
              ( 2u == tapCount ) )
     {
-      RepositionSelectionHandles( event.p2.mFloat, event.p3.mFloat );
+      // The event.p2 and event.p3 are in decorator coords. Need to transforms to text coords.
+      const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
+      const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
+
+      RepositionSelectionHandles( xPosition,
+                                  yPosition );
+
+      mEventData->mScrollAfterUpdatePosition = true;
+      mEventData->mUpdateLeftSelectionPosition = true;
+      mEventData->mUpdateRightSelectionPosition = true;
     }
   }
 }
@@ -514,6 +549,7 @@ void Controller::Impl::OnHandleEvent( const Event& event )
   }
 
   const unsigned int state = event.p1.mUint;
+  const bool handleStopScrolling = ( HANDLE_STOP_SCROLLING == state );
 
   if( HANDLE_PRESSED == state )
   {
@@ -525,7 +561,7 @@ void Controller::Impl::OnHandleEvent( const Event& event )
 
     if( Event::GRAB_HANDLE_EVENT == event.type )
     {
-      ChangeState ( EventData::EDITING );
+      ChangeState ( EventData::GRAB_HANDLE_PANNING );
 
       if( handleNewPosition != mEventData->mPrimaryCursorPosition )
       {
@@ -535,45 +571,95 @@ void Controller::Impl::OnHandleEvent( const Event& event )
     }
     else if( Event::LEFT_SELECTION_HANDLE_EVENT == event.type )
     {
+      ChangeState ( EventData::SELECTION_HANDLE_PANNING );
+
       if( handleNewPosition != mEventData->mLeftSelectionPosition )
       {
         mEventData->mLeftSelectionPosition = handleNewPosition;
+
+        RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+                                    mEventData->mRightSelectionPosition );
+
         mEventData->mUpdateLeftSelectionPosition = true;
       }
     }
     else if( Event::RIGHT_SELECTION_HANDLE_EVENT == event.type )
     {
+      ChangeState ( EventData::SELECTION_HANDLE_PANNING );
+
       if( handleNewPosition != mEventData->mRightSelectionPosition )
       {
         mEventData->mRightSelectionPosition = handleNewPosition;
+
+        RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+                                    mEventData->mRightSelectionPosition );
+
         mEventData->mUpdateRightSelectionPosition = true;
       }
     }
-  }
+  } // end ( HANDLE_PRESSED == state )
   else if( ( HANDLE_RELEASED == state ) ||
-           ( HANDLE_STOP_SCROLLING == state ) )
+           handleStopScrolling )
   {
-    if( mEventData->mGrabHandlePopupEnabled )
+    CharacterIndex handlePosition = 0u;
+    if( handleStopScrolling )
     {
-      ChangeState( EventData::EDITING_WITH_POPUP );
+      // The event.p2 and event.p3 are in decorator coords. Need to transforms to text coords.
+      const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
+      const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
+
+      handlePosition = GetClosestCursorIndex( xPosition, yPosition );
     }
+
     if( Event::GRAB_HANDLE_EVENT == event.type )
     {
       mEventData->mUpdateCursorPosition = true;
 
-      if( HANDLE_STOP_SCROLLING == state )
+      ChangeState( EventData::EDITING_WITH_POPUP );
+
+      if( handleStopScrolling )
       {
-        // The event.p2 and event.p3 are in decorator coords. Need to transforms to text coords.
-        const float xPosition = event.p2.mFloat - mEventData->mScrollPosition.x - mAlignmentOffset.x;
-        const float yPosition = event.p3.mFloat - mEventData->mScrollPosition.y - mAlignmentOffset.y;
+        mEventData->mScrollAfterUpdatePosition = mEventData->mPrimaryCursorPosition != handlePosition;
+        mEventData->mPrimaryCursorPosition = handlePosition;
+      }
+    }
+    else if( Event::LEFT_SELECTION_HANDLE_EVENT == event.type )
+    {
+      ChangeState( EventData::SELECTING );
 
-        mEventData->mPrimaryCursorPosition = GetClosestCursorIndex( xPosition, yPosition );
+      if( handleStopScrolling )
+      {
+        mEventData->mUpdateLeftSelectionPosition = mEventData->mLeftSelectionPosition != handlePosition;
+        mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateLeftSelectionPosition;
+        mEventData->mLeftSelectionPosition = handlePosition;
+
+        if( mEventData->mUpdateLeftSelectionPosition )
+        {
+          RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+                                      mEventData->mRightSelectionPosition );
+        }
+      }
+    }
+    else if( Event::RIGHT_SELECTION_HANDLE_EVENT == event.type )
+    {
+      ChangeState( EventData::SELECTING );
 
-        mEventData->mScrollAfterUpdateCursorPosition = true;
+      if( handleStopScrolling )
+      {
+        mEventData->mUpdateRightSelectionPosition = mEventData->mRightSelectionPosition != handlePosition;
+        mEventData->mScrollAfterUpdatePosition = mEventData->mUpdateRightSelectionPosition;
+        mEventData->mRightSelectionPosition = handlePosition;
+
+        if( mEventData->mUpdateRightSelectionPosition )
+        {
+          RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+                                      mEventData->mRightSelectionPosition );
+        }
       }
     }
+
     mEventData->mDecoratorUpdated = true;
-  }
+  } // end ( ( HANDLE_RELEASED == state ) || ( HANDLE_STOP_SCROLLING == state ) )
   else if( HANDLE_SCROLLING == state )
   {
     const float xSpeed = event.p2.mFloat;
@@ -583,44 +669,151 @@ void Controller::Impl::OnHandleEvent( const Event& event )
 
     ClampHorizontalScroll( actualSize );
 
-   mEventData->mDecoratorUpdated = true;
-  }
+    const bool leftSelectionHandleEvent = Event::LEFT_SELECTION_HANDLE_EVENT == event.type;
+    const bool rightSelectionHandleEvent = Event::RIGHT_SELECTION_HANDLE_EVENT == event.type;
+
+    if( Event::GRAB_HANDLE_EVENT == event.type )
+    {
+      ChangeState( EventData::GRAB_HANDLE_PANNING );
+    }
+    else if( leftSelectionHandleEvent || rightSelectionHandleEvent )
+    {
+      // TODO: This is recalculating the selection box every time the text is scrolled with the selection handles.
+      //       Think if something can be done to save power.
+
+      ChangeState( EventData::SELECTION_HANDLE_PANNING );
+
+      const Vector2& position = mEventData->mDecorator->GetPosition( leftSelectionHandleEvent ? Text::LEFT_SELECTION_HANDLE : Text::RIGHT_SELECTION_HANDLE );
+
+      // Get the new handle position.
+      // The selection handle's position is in decorator coords. Need to transforms to text coords.
+      const CharacterIndex handlePosition = GetClosestCursorIndex( position.x - mEventData->mScrollPosition.x - mAlignmentOffset.x,
+                                                                   position.y - mEventData->mScrollPosition.y - mAlignmentOffset.y );
+
+      if( leftSelectionHandleEvent )
+      {
+        mEventData->mUpdateLeftSelectionPosition = handlePosition != mEventData->mLeftSelectionPosition;
+        mEventData->mLeftSelectionPosition = handlePosition;
+      }
+      else
+      {
+        mEventData->mUpdateRightSelectionPosition = handlePosition != mEventData->mRightSelectionPosition;
+        mEventData->mRightSelectionPosition = handlePosition;
+      }
+
+      if( mEventData->mUpdateLeftSelectionPosition || mEventData->mUpdateRightSelectionPosition )
+      {
+        RepositionSelectionHandles( mEventData->mLeftSelectionPosition,
+                                    mEventData->mRightSelectionPosition );
+      }
+    }
+    mEventData->mDecoratorUpdated = true;
+  } // end ( HANDLE_SCROLLING == state )
 }
 
-void Controller::Impl::RepositionSelectionHandles( float visualX, float visualY )
+void Controller::Impl::RepositionSelectionHandles( CharacterIndex selectionStart, CharacterIndex selectionEnd )
 {
-  if( NULL == mEventData )
+  if( selectionStart == selectionEnd )
   {
-    // Nothing to do if there is no text input.
+    // Nothing to select if handles are in the same place.
     return;
   }
 
-  // TODO - Find which word was selected
+  mEventData->mDecorator->ClearHighlights();
 
-  const Vector<GlyphInfo>& glyphs = mVisualModel->mGlyphs;
-  const Vector<Vector2>::SizeType glyphCount = glyphs.Count();
+  mEventData->mLeftSelectionPosition = selectionStart;
+  mEventData->mRightSelectionPosition = selectionEnd;
 
-  const Vector<Vector2>& positions = mVisualModel->mGlyphPositions;
-  const Vector<Vector2>::SizeType positionCount = positions.Count();
+  const GlyphIndex* const charactersToGlyphBuffer = mVisualModel->mCharactersToGlyph.Begin();
+  const Length* const glyphsPerCharacterBuffer = mVisualModel->mGlyphsPerCharacter.Begin();
+  const GlyphInfo* const glyphsBuffer = mVisualModel->mGlyphs.Begin();
+  const Vector2* const positionsBuffer = mVisualModel->mGlyphPositions.Begin();
+
+  // TODO: Better algorithm to create the highlight box.
+  // TODO: Multi-line.
+
+  const Vector<LineRun>& lines = mVisualModel->mLines;
+  const LineRun& firstLine = *lines.Begin();
+  const float height = firstLine.ascender + -firstLine.descender;
+
+  const bool indicesSwapped = ( selectionStart > selectionEnd );
+  if( indicesSwapped )
+  {
+    std::swap( selectionStart, selectionEnd );
+  }
+
+  GlyphIndex glyphStart = *( charactersToGlyphBuffer + selectionStart );
+  GlyphIndex glyphEnd = *( charactersToGlyphBuffer + ( selectionEnd - 1u ) ) + *( glyphsPerCharacterBuffer + ( selectionEnd - 1u ) ) - 1u;
+
+  mEventData->mDecorator->SwapSelectionHandlesEnabled( firstLine.direction != indicesSwapped );
+
+  const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
+
+  for( GlyphIndex index = glyphStart; index <= glyphEnd; ++index )
+  {
+    const GlyphInfo& glyph = *( glyphsBuffer + index );
+    const Vector2& position = *( positionsBuffer + index );
+
+    const float xPosition = position.x - glyph.xBearing + offset.x;
+    mEventData->mDecorator->AddHighlight( xPosition, offset.y, xPosition + glyph.advance, height );
+  }
+
+  CursorInfo primaryCursorInfo;
+  GetCursorPosition( mEventData->mLeftSelectionPosition,
+                     primaryCursorInfo );
+
+  CursorInfo secondaryCursorInfo;
+  GetCursorPosition( mEventData->mRightSelectionPosition,
+                     secondaryCursorInfo );
+
+  const Vector2 primaryPosition = primaryCursorInfo.primaryPosition + offset;
+  const Vector2 secondaryPosition = secondaryCursorInfo.primaryPosition + offset;
+
+  mEventData->mDecorator->SetPosition( LEFT_SELECTION_HANDLE, primaryPosition.x, primaryPosition.y, primaryCursorInfo.lineHeight );
+
+  mEventData->mDecorator->SetPosition( RIGHT_SELECTION_HANDLE, secondaryPosition.x, secondaryPosition.y, secondaryCursorInfo.lineHeight );
+
+  // Set the flag to update the decorator.
+  mEventData->mDecoratorUpdated = true;
+}
 
-  // Guard against glyphs which did not fit inside the layout
-  const Vector<Vector2>::SizeType count = (positionCount < glyphCount) ? positionCount : glyphCount;
+void Controller::Impl::RepositionSelectionHandles( float visualX, float visualY )
+{
+  if( NULL == mEventData )
+  {
+    // Nothing to do if there is no text input.
+    return;
+  }
 
-  if( count )
+  if( IsShowingPlaceholderText() )
   {
-    float primaryX   = positions[0].x + mEventData->mScrollPosition.x;
-    float secondaryX = positions[count-1].x + glyphs[count-1].width + mEventData->mScrollPosition.x;
+    // Nothing to do if there is the place-holder text.
+    return;
+  }
 
-    // TODO - multi-line selection
-    const Vector<LineRun>& lines = mVisualModel->mLines;
-    float height = lines.Count() ? lines[0].ascender + -lines[0].descender : 0.0f;
+  const Length numberOfGlyphs = mVisualModel->mGlyphs.Count();
+  const Length numberOfLines  = mVisualModel->mLines.Count();
+  if( 0 == numberOfGlyphs ||
+      0 == numberOfLines )
+  {
+    // Nothing to do if there is no text.
+    return;
+  }
 
-    mEventData->mDecorator->SetPosition( LEFT_SELECTION_HANDLE,     primaryX, mEventData->mScrollPosition.y, height );
-    mEventData->mDecorator->SetPosition( RIGHT_SELECTION_HANDLE, secondaryX, mEventData->mScrollPosition.y, height );
+  // Find which word was selected
+  CharacterIndex selectionStart( 0 );
+  CharacterIndex selectionEnd( 0 );
+  FindSelectionIndices( visualX, visualY, selectionStart, selectionEnd );
+  DALI_LOG_INFO( gLogFilter, Debug::Verbose, "%p selectionStart %d selectionEnd %d\n", this, selectionStart, selectionEnd );
 
-    mEventData->mDecorator->ClearHighlights();
-    mEventData->mDecorator->AddHighlight( primaryX, mEventData->mScrollPosition.y, secondaryX, height + mEventData->mScrollPosition.y );
+  if( selectionStart == selectionEnd )
+  {
+    ChangeState( EventData::EDITING );
+    // Nothing to select. i.e. a white space, out of bounds
+    return;
   }
+
+  RepositionSelectionHandles( selectionStart, selectionEnd );
 }
 
 void Controller::Impl::ChangeState( EventData::State newState )
@@ -652,6 +845,31 @@ void Controller::Impl::ChangeState( EventData::State newState )
       mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
       mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, true );
       mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, true );
+      if( mEventData->mGrabHandlePopupEnabled )
+      {
+        TextSelectionPopup::Buttons buttonsToShow = TextSelectionPopup::Buttons(  TextSelectionPopup::CUT | TextSelectionPopup::COPY );
+        if ( !IsClipboardEmpty() )
+        {
+          buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) );
+        }
+
+        mEventData->mDecorator->SetEnabledPopupButtons( buttonsToShow );
+        mEventData->mDecorator->SetPopupActive( true );
+      }
+      mEventData->mDecoratorUpdated = true;
+    }
+    else if ( EventData::SELECTION_CHANGED  == mEventData->mState )
+    {
+      if( mEventData->mGrabHandlePopupEnabled )
+      {
+        TextSelectionPopup::Buttons buttonsToShow = TextSelectionPopup::Buttons(  TextSelectionPopup::CUT | TextSelectionPopup::COPY );
+        if (  !IsClipboardEmpty() )
+        {
+          buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) );
+        }
+        mEventData->mDecorator->SetEnabledPopupButtons( buttonsToShow );
+        mEventData->mDecorator->SetPopupActive( true );
+      }
       mEventData->mDecoratorUpdated = true;
     }
     else if( EventData::EDITING == mEventData->mState )
@@ -665,6 +883,10 @@ void Controller::Impl::ChangeState( EventData::State newState )
       mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
       mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
       mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+      if( mEventData->mGrabHandlePopupEnabled )
+      {
+        mEventData->mDecorator->SetPopupActive( false );
+      }
       mEventData->mDecoratorUpdated = true;
     }
     else if( EventData::EDITING_WITH_POPUP == mEventData->mState )
@@ -674,18 +896,58 @@ void Controller::Impl::ChangeState( EventData::State newState )
       {
         mEventData->mDecorator->StartCursorBlink();
       }
-      mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
       if( mEventData->mSelectionEnabled )
       {
-        mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, true );
-        mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, true );
+        mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+        mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+      }
+      else
+      {
+        mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
       }
       if( mEventData->mGrabHandlePopupEnabled )
       {
+        TextSelectionPopup::Buttons buttonsToShow = TextSelectionPopup::Buttons( TextSelectionPopup::SELECT | TextSelectionPopup::SELECT_ALL );
+
+        if ( !IsClipboardEmpty() )
+        {
+          buttonsToShow = TextSelectionPopup::Buttons ( ( buttonsToShow | TextSelectionPopup::PASTE ) );
+        }
+
+        mEventData->mDecorator->SetEnabledPopupButtons( buttonsToShow );
         mEventData->mDecorator->SetPopupActive( true );
       }
       mEventData->mDecoratorUpdated = true;
     }
+    else if ( EventData::SELECTION_HANDLE_PANNING == mEventData->mState )
+    {
+      mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
+      mEventData->mDecorator->StopCursorBlink();
+      mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+      mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, true );
+      mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, true );
+      if( mEventData->mGrabHandlePopupEnabled )
+      {
+        mEventData->mDecorator->SetPopupActive( false );
+      }
+      mEventData->mDecoratorUpdated = true;
+    }
+    else if ( EventData::GRAB_HANDLE_PANNING == mEventData->mState )
+    {
+      mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+      if( mEventData->mCursorBlinkEnabled )
+      {
+        mEventData->mDecorator->StartCursorBlink();
+      }
+      mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
+      mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+      mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+      if( mEventData->mGrabHandlePopupEnabled )
+      {
+        mEventData->mDecorator->SetPopupActive( false );
+      }
+      mEventData->mDecoratorUpdated = true;
+    }
   }
 }
 
@@ -707,9 +969,49 @@ LineIndex Controller::Impl::GetClosestLine( float y ) const
     }
   }
 
+  if( lineIndex == 0 )
+  {
+    return 0;
+  }
+
   return lineIndex-1;
 }
 
+void Controller::Impl::FindSelectionIndices( float visualX, float visualY, CharacterIndex& startIndex, CharacterIndex& endIndex )
+{
+  CharacterIndex hitCharacter = GetClosestCursorIndex( visualX, visualY );
+  if( hitCharacter >= mLogicalModel->mText.Count() )
+  {
+    // Selection out of bounds.
+    return;
+  }
+
+  startIndex = hitCharacter;
+  endIndex = hitCharacter;
+
+  if( !TextAbstraction::IsWhiteSpace( mLogicalModel->mText[hitCharacter] ) )
+  {
+    // Find the start and end of the text
+    for( startIndex = hitCharacter; startIndex > 0; --startIndex )
+    {
+      Character charCode = mLogicalModel->mText[ startIndex-1 ];
+      if( TextAbstraction::IsWhiteSpace( charCode ) )
+      {
+        break;
+      }
+    }
+    const CharacterIndex pastTheEnd = mLogicalModel->mText.Count();
+    for( endIndex = hitCharacter + 1u; endIndex < pastTheEnd; ++endIndex )
+    {
+      Character charCode = mLogicalModel->mText[ endIndex ];
+      if( TextAbstraction::IsWhiteSpace( charCode ) )
+      {
+        break;
+      }
+    }
+  }
+}
+
 CharacterIndex Controller::Impl::GetClosestCursorIndex( float visualX,
                                                         float visualY )
 {
@@ -780,9 +1082,10 @@ CharacterIndex Controller::Impl::GetClosestCursorIndex( float visualX,
 
     const Vector2& position = *( positionsBuffer + glyphLogicalOrderIndex );
 
-    const float glyphX = -glyphMetrics.xBearing + position.x + 0.5f * glyphMetrics.advance;
+    // Find the mid-point of the area containing the glyph
+    const float glyphCenter = -glyphMetrics.xBearing + position.x + 0.5f * glyphMetrics.advance;
 
-    if( visualX < glyphX )
+    if( visualX < glyphCenter )
     {
       matched = true;
       break;
@@ -796,7 +1099,9 @@ CharacterIndex Controller::Impl::GetClosestCursorIndex( float visualX,
     visualIndex = endCharacter;
   }
 
-  return hasRightToLeftCharacters ? *( visualToLogicalCursorBuffer + visualIndex ) : visualIndex;
+  logicalIndex = hasRightToLeftCharacters ? *( visualToLogicalCursorBuffer + visualIndex ) : visualIndex;
+  DALI_LOG_INFO( gLogFilter, Debug::Verbose, "%p closest visualIndex %d logicalIndex %d\n", this, visualIndex, logicalIndex );
+  return logicalIndex;
 }
 
 void Controller::Impl::GetCursorPosition( CharacterIndex logical,
@@ -1041,40 +1346,116 @@ void Controller::Impl::UpdateCursorPosition()
     return;
   }
 
-  CursorInfo cursorInfo;
-  GetCursorPosition( mEventData->mPrimaryCursorPosition,
-                     cursorInfo );
+  if( IsShowingPlaceholderText() )
+  {
+    // Do not want to use the place-holder text to set the cursor position.
 
-  const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
-  const Vector2 cursorPosition = cursorInfo.primaryPosition + offset;
+    // Use the line's height of the font's family set to set the cursor's size.
+    // If there is no font's family set, use the default font.
+    // Use the current alignment to place the cursor at the beginning, center or end of the box.
 
-  // Sets the cursor position.
-  mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
-                                       cursorPosition.x,
-                                       cursorPosition.y,
-                                       cursorInfo.primaryCursorHeight,
-                                       cursorInfo.lineHeight );
-  DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Primary cursor position: %f,%f\n", cursorPosition.x, cursorPosition.y );
+    float lineHeight = 0.f;
 
-  // Sets the grab handle position.
-  mEventData->mDecorator->SetPosition( GRAB_HANDLE,
-                                       cursorPosition.x,
-                                       cursorPosition.y,
-                                       cursorInfo.lineHeight );
+    FontId defaultFontId = 0u;
+    if( NULL == mFontDefaults )
+    {
+      defaultFontId = mFontClient.GetFontId( EMPTY_STRING,
+                                             EMPTY_STRING );
+    }
+    else
+    {
+      defaultFontId = mFontDefaults->GetFontId( mFontClient );
+    }
 
-  if( cursorInfo.isSecondaryCursor )
-  {
-    mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_BOTH );
-    mEventData->mDecorator->SetPosition( SECONDARY_CURSOR,
-                                         cursorInfo.secondaryPosition.x + offset.x,
-                                         cursorInfo.secondaryPosition.y + offset.y,
-                                         cursorInfo.secondaryCursorHeight,
-                                         cursorInfo.lineHeight );
-    DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Secondary cursor position: %f,%f\n", cursorInfo.secondaryPosition.x + offset.x, cursorInfo.secondaryPosition.y + offset.y );
+    Text::FontMetrics fontMetrics;
+    mFontClient.GetFontMetrics( defaultFontId, fontMetrics );
+
+    lineHeight = fontMetrics.ascender - fontMetrics.descender;
+
+
+    Vector2 cursorPosition;
+
+    switch( mLayoutEngine.GetHorizontalAlignment() )
+    {
+      case LayoutEngine::HORIZONTAL_ALIGN_BEGIN:
+      {
+        cursorPosition.x = 1.f;
+        break;
+      }
+      case LayoutEngine::HORIZONTAL_ALIGN_CENTER:
+      {
+        cursorPosition.x = floor( 0.5f * mControlSize.width );
+        break;
+      }
+      case LayoutEngine::HORIZONTAL_ALIGN_END:
+      {
+        cursorPosition.x = mControlSize.width;
+        break;
+      }
+    }
+
+    switch( mLayoutEngine.GetVerticalAlignment() )
+    {
+      case LayoutEngine::VERTICAL_ALIGN_TOP:
+      {
+        cursorPosition.y = 0.f;
+        break;
+      }
+      case LayoutEngine::VERTICAL_ALIGN_CENTER:
+      {
+        cursorPosition.y = floorf( 0.5f * ( mControlSize.height - lineHeight ) );
+        break;
+      }
+      case LayoutEngine::VERTICAL_ALIGN_BOTTOM:
+      {
+        cursorPosition.y = mControlSize.height - lineHeight;
+        break;
+      }
+    }
+
+    mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
+                                         cursorPosition.x,
+                                         cursorPosition.y,
+                                         lineHeight,
+                                         lineHeight );
   }
   else
   {
-    mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+    CursorInfo cursorInfo;
+    GetCursorPosition( mEventData->mPrimaryCursorPosition,
+                       cursorInfo );
+
+    const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
+    const Vector2 cursorPosition = cursorInfo.primaryPosition + offset;
+
+    // Sets the cursor position.
+    mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
+                                         cursorPosition.x,
+                                         cursorPosition.y,
+                                         cursorInfo.primaryCursorHeight,
+                                         cursorInfo.lineHeight );
+    DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Primary cursor position: %f,%f\n", cursorPosition.x, cursorPosition.y );
+
+    // Sets the grab handle position.
+    mEventData->mDecorator->SetPosition( GRAB_HANDLE,
+                                         cursorPosition.x,
+                                         cursorPosition.y,
+                                         cursorInfo.lineHeight );
+
+    if( cursorInfo.isSecondaryCursor )
+    {
+      mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_BOTH );
+      mEventData->mDecorator->SetPosition( SECONDARY_CURSOR,
+                                           cursorInfo.secondaryPosition.x + offset.x,
+                                           cursorInfo.secondaryPosition.y + offset.y,
+                                           cursorInfo.secondaryCursorHeight,
+                                           cursorInfo.lineHeight );
+      DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Secondary cursor position: %f,%f\n", cursorInfo.secondaryPosition.x + offset.x, cursorInfo.secondaryPosition.y + offset.y );
+    }
+    else
+    {
+      mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+    }
   }
   DALI_LOG_INFO( gLogFilter, Debug::Verbose, "<--Controller::UpdateCursorPosition\n" );
 }
@@ -1138,27 +1519,19 @@ void Controller::Impl::ClampVerticalScroll( const Vector2& actualSize )
   }
 }
 
-void Controller::Impl::ScrollToMakeCursorVisible()
+void Controller::Impl::ScrollToMakePositionVisible( const Vector2& position )
 {
-  if( NULL == mEventData )
-  {
-    // Nothing to do if there is no text input.
-    return;
-  }
-
-  const Vector2& primaryCursorPosition = mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
-
   Vector2 offset;
   bool updateDecorator = false;
-  if( primaryCursorPosition.x < 0.f )
+  if( position.x < 0.f )
   {
-    offset.x = -primaryCursorPosition.x;
+    offset.x = -position.x;
     mEventData->mScrollPosition.x += offset.x;
     updateDecorator = true;
   }
-  else if( primaryCursorPosition.x > mControlSize.width )
+  else if( position.x > mControlSize.width )
   {
-    offset.x = mControlSize.width - primaryCursorPosition.x;
+    offset.x = mControlSize.width - position.x;
     mEventData->mScrollPosition.x += offset.x;
     updateDecorator = true;
   }
@@ -1171,6 +1544,57 @@ void Controller::Impl::ScrollToMakeCursorVisible()
   // TODO : calculate the vertical scroll.
 }
 
+void Controller::Impl::ScrollTextToMatchCursor()
+{
+  // Get the current cursor position in decorator coords.
+  const Vector2& currentCursorPosition = mEventData->mDecorator->GetPosition( PRIMARY_CURSOR );
+
+  // Calculate the new cursor position.
+  CursorInfo cursorInfo;
+  GetCursorPosition( mEventData->mPrimaryCursorPosition,
+                     cursorInfo );
+
+  // Calculate the offset to match the cursor position before the character was deleted.
+  mEventData->mScrollPosition.x = currentCursorPosition.x - cursorInfo.primaryPosition.x - mAlignmentOffset.x;
+
+  ClampHorizontalScroll( mVisualModel->GetActualSize() );
+  bool updateCursorPosition = true;
+
+  const Vector2 offset = mEventData->mScrollPosition + mAlignmentOffset;
+  const Vector2 cursorPosition = cursorInfo.primaryPosition + offset;
+
+  if( updateCursorPosition )
+  {
+    // Sets the cursor position.
+    mEventData->mDecorator->SetPosition( PRIMARY_CURSOR,
+                                         cursorPosition.x,
+                                         cursorPosition.y,
+                                         cursorInfo.primaryCursorHeight,
+                                         cursorInfo.lineHeight );
+
+    // Sets the grab handle position.
+    mEventData->mDecorator->SetPosition( GRAB_HANDLE,
+                                         cursorPosition.x,
+                                         cursorPosition.y,
+                                         cursorInfo.lineHeight );
+
+    if( cursorInfo.isSecondaryCursor )
+    {
+      mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_BOTH );
+      mEventData->mDecorator->SetPosition( SECONDARY_CURSOR,
+                                           cursorInfo.secondaryPosition.x + offset.x,
+                                           cursorInfo.secondaryPosition.y + offset.y,
+                                           cursorInfo.secondaryCursorHeight,
+                                           cursorInfo.lineHeight );
+      DALI_LOG_INFO( gLogFilter, Debug::Verbose, "Secondary cursor position: %f,%f\n", cursorInfo.secondaryPosition.x + offset.x, cursorInfo.secondaryPosition.y + offset.y );
+    }
+    else
+    {
+      mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+    }
+  }
+}
+
 void Controller::Impl::RequestRelayout()
 {
   mControlInterface.RequestTextRelayout();