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=1c5044a78039a26139ea44bb7c0341093c27646d;hp=e4029b37a574ab5896e529fd10c892d29ad3b7b5;hb=bd4a5ddb4bd8d980c7bcc4e1640095f7c8727579;hpb=ba15ee43a942f27e564c4d5e442066db440b7c3f

diff --git a/dali-toolkit/internal/text/text-controller-impl.cpp b/dali-toolkit/internal/text/text-controller-impl.cpp
index e4029b3..1c5044a 100644
--- a/dali-toolkit/internal/text/text-controller-impl.cpp
+++ b/dali-toolkit/internal/text/text-controller-impl.cpp
@@ -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.
@@ -31,6 +31,7 @@
 #include <dali-toolkit/internal/text/multi-language-support.h>
 #include <dali-toolkit/internal/text/segmentation.h>
 #include <dali-toolkit/internal/text/shaper.h>
+#include <dali-toolkit/internal/text/text-control-interface.h>
 #include <dali-toolkit/internal/text/text-run-container.h>
 
 namespace
@@ -73,6 +74,8 @@ EventData::EventData( DecoratorPtr decorator )
   mPlaceholderTextInactive(),
   mPlaceholderTextColor( 0.8f, 0.8f, 0.8f, 0.8f ),
   mEventQueue(),
+  mInputStyleChangedQueue(),
+  mPreviousState( INACTIVE ),
   mState( INACTIVE ),
   mPrimaryCursorPosition( 0u ),
   mLeftSelectionPosition( 0u ),
@@ -87,10 +90,12 @@ EventData::EventData( DecoratorPtr decorator )
   mGrabHandleEnabled( true ),
   mGrabHandlePopupEnabled( true ),
   mSelectionEnabled( true ),
+  mUpdateCursorHookPosition( false ),
   mUpdateCursorPosition( false ),
   mUpdateGrabHandlePosition( false ),
   mUpdateLeftSelectionPosition( false ),
   mUpdateRightSelectionPosition( false ),
+  mIsLeftHandleSelected( false ),
   mUpdateHighlightBox( false ),
   mScrollAfterUpdatePosition( false ),
   mScrollAfterDelete( false ),
@@ -218,16 +223,12 @@ bool Controller::Impl::ProcessInputEvents()
       GetCursorPosition( mEventData->mRightSelectionPosition,
                          rightHandleInfo );
 
-      if( mEventData->mScrollAfterUpdatePosition && mEventData->mUpdateLeftSelectionPosition )
+      if( mEventData->mScrollAfterUpdatePosition && ( mEventData->mIsLeftHandleSelected ? mEventData->mUpdateLeftSelectionPosition : mEventData->mUpdateRightSelectionPosition ) )
       {
-        const Vector2 currentCursorPosition( leftHandleInfo.primaryPosition.x, leftHandleInfo.lineOffset );
-        ScrollToMakePositionVisible( currentCursorPosition, leftHandleInfo.lineHeight );
-       }
+        CursorInfo& info = mEventData->mIsLeftHandleSelected ? leftHandleInfo : rightHandleInfo;
 
-      if( mEventData->mScrollAfterUpdatePosition && mEventData->mUpdateRightSelectionPosition )
-      {
-        const Vector2 currentCursorPosition( rightHandleInfo.primaryPosition.x, rightHandleInfo.lineOffset );
-        ScrollToMakePositionVisible( currentCursorPosition, rightHandleInfo.lineHeight );
+        const Vector2 currentCursorPosition( info.primaryPosition.x, info.lineOffset );
+        ScrollToMakePositionVisible( currentCursorPosition, info.lineHeight );
       }
     }
 
@@ -265,6 +266,10 @@ bool Controller::Impl::ProcessInputEvents()
 
   if( mEventData->mUpdateInputStyle )
   {
+    // Keep a copy of the current input style.
+    InputStyle currentInputStyle;
+    currentInputStyle.Copy( mEventData->mInputStyle );
+
     // Set the default style first.
     RetrieveDefaultInputStyle( mEventData->mInputStyle );
 
@@ -274,6 +279,16 @@ bool Controller::Impl::ProcessInputEvents()
     // Retrieve the style from the style runs stored in the logical model.
     mLogicalModel->RetrieveStyle( styleIndex, mEventData->mInputStyle );
 
+    // Compare if the input style has changed.
+    const bool hasInputStyleChanged = !currentInputStyle.Equal( mEventData->mInputStyle );
+
+    if( hasInputStyleChanged )
+    {
+      const InputStyle::Mask styleChangedMask = currentInputStyle.GetInputStyleChangeMask( mEventData->mInputStyle );
+      // Queue the input style changed signal.
+      mEventData->mInputStyleChangedQueue.PushBack( styleChangedMask );
+    }
+
     mEventData->mUpdateInputStyle = false;
   }
 
@@ -310,6 +325,15 @@ void Controller::Impl::NotifyImfManager()
   }
 }
 
+void Controller::Impl::NotifyImfMultiLineStatus()
+{
+  if ( mEventData )
+  {
+    LayoutEngine::Layout layout = mLayoutEngine.GetLayout();
+    mEventData->mImfManager.NotifyTextInputMultiLine( layout == LayoutEngine::MULTI_LINE_BOX );
+  }
+}
+
 CharacterIndex Controller::Impl::GetLogicalCursorPosition() const
 {
   CharacterIndex cursorPosition = 0u;
@@ -827,15 +851,22 @@ bool Controller::Impl::UpdateModel( OperationsMask operationsRequired )
       // Validate the fonts set through the mark-up string.
       Vector<FontDescriptionRun>& fontDescriptionRuns = mLogicalModel->mFontDescriptionRuns;
 
-      // Get the default font id.
-      const FontId defaultFontId = ( NULL == mFontDefaults ) ? 0u : mFontDefaults->GetFontId( mFontClient );
+      // Get the default font's description.
+      TextAbstraction::FontDescription defaultFontDescription;
+      TextAbstraction::PointSize26Dot6 defaultPointSize = TextAbstraction::FontClient::DEFAULT_POINT_SIZE;
+      if( NULL != mFontDefaults )
+      {
+        defaultFontDescription = mFontDefaults->mFontDescription;
+        defaultPointSize = mFontDefaults->mDefaultPointSize * 64u;
+      }
 
       // Validates the fonts. If there is a character with no assigned font it sets a default one.
       // After this call, fonts are validated.
       multilanguageSupport.ValidateFonts( utf32Characters,
                                           scripts,
                                           fontDescriptionRuns,
-                                          defaultFontId,
+                                          defaultFontDescription,
+                                          defaultPointSize,
                                           startIndex,
                                           requestedNumberOfCharacters,
                                           validFonts );
@@ -993,11 +1024,25 @@ void Controller::Impl::RetrieveDefaultInputStyle( InputStyle& inputStyle )
   inputStyle.slant = TextAbstraction::FontSlant::NORMAL;
   inputStyle.size = 0.f;
 
-  inputStyle.familyDefined = false;
-  inputStyle.weightDefined = false;
-  inputStyle.widthDefined = false;
-  inputStyle.slantDefined = false;
-  inputStyle.sizeDefined = false;
+  inputStyle.lineSpacing = 0.f;
+
+  inputStyle.underlineProperties.clear();
+  inputStyle.shadowProperties.clear();
+  inputStyle.embossProperties.clear();
+  inputStyle.outlineProperties.clear();
+
+  inputStyle.isFamilyDefined = false;
+  inputStyle.isWeightDefined = false;
+  inputStyle.isWidthDefined = false;
+  inputStyle.isSlantDefined = false;
+  inputStyle.isSizeDefined = false;
+
+  inputStyle.isLineSpacingDefined = false;
+
+  inputStyle.isUnderlineDefined = false;
+  inputStyle.isShadowDefined = false;
+  inputStyle.isEmbossDefined = false;
+  inputStyle.isOutlineDefined = false;
 
   // Sets the default font's family name, weight, width, slant and size.
   if( mFontDefaults )
@@ -1005,31 +1050,31 @@ void Controller::Impl::RetrieveDefaultInputStyle( InputStyle& inputStyle )
     if( mFontDefaults->familyDefined )
     {
       inputStyle.familyName = mFontDefaults->mFontDescription.family;
-      inputStyle.familyDefined = true;
+      inputStyle.isFamilyDefined = true;
     }
 
     if( mFontDefaults->weightDefined )
     {
       inputStyle.weight = mFontDefaults->mFontDescription.weight;
-      inputStyle.weightDefined = true;
+      inputStyle.isWeightDefined = true;
     }
 
     if( mFontDefaults->widthDefined )
     {
       inputStyle.width = mFontDefaults->mFontDescription.width;
-      inputStyle.widthDefined = true;
+      inputStyle.isWidthDefined = true;
     }
 
     if( mFontDefaults->slantDefined )
     {
       inputStyle.slant = mFontDefaults->mFontDescription.slant;
-      inputStyle.slantDefined = true;
+      inputStyle.isSlantDefined = true;
     }
 
     if( mFontDefaults->sizeDefined )
     {
       inputStyle.size = mFontDefaults->mDefaultPointSize;
-      inputStyle.sizeDefined = true;
+      inputStyle.isSizeDefined = true;
     }
   }
 }
@@ -1203,17 +1248,31 @@ void Controller::Impl::OnPanEvent( const Event& event )
     return;
   }
 
-  int state = event.p1.mInt;
+  const bool isHorizontalScrollEnabled = mEventData->mDecorator->IsHorizontalScrollEnabled();
+  const bool isVerticalScrollEnabled = mEventData->mDecorator->IsVerticalScrollEnabled();
+
+  if( !isHorizontalScrollEnabled && !isVerticalScrollEnabled )
+  {
+    // Nothing to do if scrolling is not enabled.
+    return;
+  }
+
+  const int state = event.p1.mInt;
 
-  if( ( Gesture::Started == state ) ||
-      ( Gesture::Continuing == state ) )
+  switch( state )
   {
-    if( mEventData->mDecorator )
+    case Gesture::Started:
+    {
+      // Will remove the cursor, handles or text's popup, ...
+      ChangeState( EventData::TEXT_PANNING );
+      break;
+    }
+    case Gesture::Continuing:
     {
       const Vector2& layoutSize = mVisualModel->GetLayoutSize();
       const Vector2 currentScroll = mScrollPosition;
 
-      if( mEventData->mDecorator->IsHorizontalScrollEnabled() )
+      if( isHorizontalScrollEnabled )
       {
         const float displacementX = event.p2.mFloat;
         mScrollPosition.x += displacementX;
@@ -1221,7 +1280,7 @@ void Controller::Impl::OnPanEvent( const Event& event )
         ClampHorizontalScroll( layoutSize );
       }
 
-      if( mEventData->mDecorator->IsVerticalScrollEnabled() )
+      if( isVerticalScrollEnabled )
       {
         const float displacementY = event.p3.mFloat;
         mScrollPosition.y += displacementY;
@@ -1230,7 +1289,17 @@ void Controller::Impl::OnPanEvent( const Event& event )
       }
 
       mEventData->mDecorator->UpdatePositions( mScrollPosition - currentScroll );
+      break;
+    }
+    case Gesture::Finished:
+    case Gesture::Cancelled: // FALLTHROUGH
+    {
+      // Will go back to the previous state to show the cursor, handles, the text's popup, ...
+      ChangeState( mEventData->mPreviousState );
+      break;
     }
+    default:
+      break;
   }
 }
 
@@ -1242,6 +1311,7 @@ void Controller::Impl::OnLongPressEvent( const Event& event )
   {
     ChangeState ( EventData::EDITING_WITH_POPUP );
     mEventData->mDecoratorUpdated = true;
+    mEventData->mUpdateInputStyle = true;
   }
 }
 
@@ -1302,6 +1372,9 @@ void Controller::Impl::OnHandleEvent( const Event& event )
 
       // Updates the decorator if the soft handle panning is enabled. It triggers a relayout in the decorator and the new position of the handle is set.
       mEventData->mDecoratorUpdated = isSmoothHandlePanEnabled;
+
+      // Will define the order to scroll the text to match the handle position.
+      mEventData->mIsLeftHandleSelected = true;
     }
     else if( Event::RIGHT_SELECTION_HANDLE_EVENT == event.type )
     {
@@ -1319,6 +1392,9 @@ void Controller::Impl::OnHandleEvent( const Event& event )
 
       // Updates the decorator if the soft handle panning is enabled. It triggers a relayout in the decorator and the new position of the handle is set.
       mEventData->mDecoratorUpdated = isSmoothHandlePanEnabled;
+
+      // Will define the order to scroll the text to match the handle position.
+      mEventData->mIsLeftHandleSelected = false;
     }
   } // end ( HANDLE_PRESSED == state )
   else if( ( HANDLE_RELEASED == state ) ||
@@ -1361,6 +1437,7 @@ void Controller::Impl::OnHandleEvent( const Event& event )
 
       mEventData->mUpdateHighlightBox = true;
       mEventData->mUpdateLeftSelectionPosition = true;
+      mEventData->mUpdateRightSelectionPosition = true;
 
       if( handleStopScrolling || isSmoothHandlePanEnabled )
       {
@@ -1379,6 +1456,7 @@ void Controller::Impl::OnHandleEvent( const Event& event )
 
       mEventData->mUpdateHighlightBox = true;
       mEventData->mUpdateRightSelectionPosition = true;
+      mEventData->mUpdateLeftSelectionPosition = true;
 
       if( handleStopScrolling || isSmoothHandlePanEnabled )
       {
@@ -1544,13 +1622,6 @@ void Controller::Impl::OnSelectEvent( const Event& event )
     // Calculates the logical position from the x,y coords.
     RepositionSelectionHandles( xPosition,
                                 yPosition );
-
-    mEventData->mUpdateLeftSelectionPosition = true;
-    mEventData->mUpdateRightSelectionPosition = true;
-    mEventData->mUpdateHighlightBox = true;
-    mEventData->mUpdateCursorPosition = false;
-
-    mEventData->mScrollAfterUpdatePosition = ( mEventData->mLeftSelectionPosition != mEventData->mRightSelectionPosition );
   }
 }
 
@@ -1566,6 +1637,8 @@ void Controller::Impl::OnSelectAllEvent()
 
   if( mEventData->mSelectionEnabled )
   {
+    ChangeState( EventData::SELECTING );
+
     mEventData->mLeftSelectionPosition = 0u;
     mEventData->mRightSelectionPosition = mLogicalModel->mText.Count();
 
@@ -1602,9 +1675,23 @@ void Controller::Impl::RetrieveSelection( std::string& selectedText, bool delete
 
     if( deleteAfterRetrieval ) // Only delete text if copied successfully
     {
+      // Keep a copy of the current input style.
+      InputStyle currentInputStyle;
+      currentInputStyle.Copy( mEventData->mInputStyle );
+
       // Set as input style the style of the first deleted character.
       mLogicalModel->RetrieveStyle( startOfSelectedText, mEventData->mInputStyle );
 
+      // Compare if the input style has changed.
+      const bool hasInputStyleChanged = !currentInputStyle.Equal( mEventData->mInputStyle );
+
+      if( hasInputStyleChanged )
+      {
+        const InputStyle::Mask styleChangedMask = currentInputStyle.GetInputStyleChangeMask( mEventData->mInputStyle );
+        // Queue the input style changed signal.
+        mEventData->mInputStyleChangedQueue.PushBack( styleChangedMask );
+      }
+
       mLogicalModel->UpdateTextStyleRuns( startOfSelectedText, -static_cast<int>( lengthOfSelectedText ) );
 
       // Mark the paragraphs to be updated.
@@ -1664,11 +1751,11 @@ void Controller::Impl::SendSelectionToClipboard( bool deleteAfterSending )
   ChangeState( EventData::EDITING );
 }
 
-void Controller::Impl::GetTextFromClipboard( unsigned int itemIndex, std::string& retrievedString )
+void Controller::Impl::RequestGetTextFromClipboard()
 {
   if ( mClipboard )
   {
-    retrievedString =  mClipboard.GetItem( itemIndex );
+    mClipboard.RequestItem();
   }
 }
 
@@ -1764,6 +1851,14 @@ void Controller::Impl::RepositionSelectionHandles()
   const Length numberOfCharactersEnd = *( charactersPerGlyphBuffer + glyphEnd );
   bool splitEndGlyph = ( glyphStart != glyphEnd ) && ( numberOfCharactersEnd > 1u ) && HasLigatureMustBreak( mLogicalModel->GetScript( selectionEndMinusOne ) );
 
+  // The number of quads of the selection box.
+  const unsigned int numberOfQuads = 1u + ( glyphEnd - glyphStart ) + ( ( numberOfLines > 1u ) ? 2u * numberOfLines : 0u );
+  mEventData->mDecorator->ResizeHighlightQuads( numberOfQuads );
+
+  // Count the actual number of quads.
+  unsigned int actualNumberOfQuads = 0u;
+  Vector4 quad;
+
   // Traverse the glyphs.
   for( GlyphIndex index = glyphStart; index <= glyphEnd; ++index )
   {
@@ -1787,18 +1882,17 @@ void Controller::Impl::RepositionSelectionHandles()
       // Calculate the number of characters selected.
       const Length numberOfCharacters = ( glyphStart == glyphEnd ) ? ( selectionEnd - selectionStart ) : ( numberOfCharactersStart - interGlyphIndex );
 
-      const float xPosition = lineRun->alignmentOffset + position.x - glyph.xBearing + mScrollPosition.x + glyphAdvance * static_cast<float>( isCurrentRightToLeft ? ( numberOfCharactersStart - interGlyphIndex - numberOfCharacters ) : interGlyphIndex );
-      const float xPositionAdvance = xPosition + static_cast<float>( numberOfCharacters ) * glyphAdvance;
-      const float yPosition = selectionBoxInfo->lineOffset;
+      quad.x = lineRun->alignmentOffset + position.x - glyph.xBearing + mScrollPosition.x + glyphAdvance * static_cast<float>( isCurrentRightToLeft ? ( numberOfCharactersStart - interGlyphIndex - numberOfCharacters ) : interGlyphIndex );
+      quad.y = selectionBoxInfo->lineOffset;
+      quad.z = quad.x + static_cast<float>( numberOfCharacters ) * glyphAdvance;
+      quad.w = selectionBoxInfo->lineOffset + selectionBoxInfo->lineHeight;
 
       // Store the min and max 'x' for each line.
-      selectionBoxInfo->minX = std::min( selectionBoxInfo->minX, xPosition );
-      selectionBoxInfo->maxX = std::max( selectionBoxInfo->maxX, xPositionAdvance );
+      selectionBoxInfo->minX = std::min( selectionBoxInfo->minX, quad.x );
+      selectionBoxInfo->maxX = std::max( selectionBoxInfo->maxX, quad.z );
 
-      mEventData->mDecorator->AddHighlight( xPosition,
-                                            yPosition,
-                                            xPositionAdvance,
-                                            yPosition + selectionBoxInfo->lineHeight );
+      mEventData->mDecorator->AddHighlight( actualNumberOfQuads, quad );
+      ++actualNumberOfQuads;
 
       splitStartGlyph = false;
       continue;
@@ -1819,35 +1913,35 @@ void Controller::Impl::RepositionSelectionHandles()
 
       const Length numberOfCharacters = numberOfCharactersEnd - interGlyphIndex;
 
-      const float xPosition = lineRun->alignmentOffset + position.x - glyph.xBearing + mScrollPosition.x + ( isCurrentRightToLeft ? ( glyphAdvance * static_cast<float>( numberOfCharacters ) ) : 0.f );
-      const float xPositionAdvance = xPosition + static_cast<float>( interGlyphIndex ) * glyphAdvance;
-      const float yPosition = selectionBoxInfo->lineOffset;
+      quad.x = lineRun->alignmentOffset + position.x - glyph.xBearing + mScrollPosition.x + ( isCurrentRightToLeft ? ( glyphAdvance * static_cast<float>( numberOfCharacters ) ) : 0.f );
+      quad.y = selectionBoxInfo->lineOffset;
+      quad.z = quad.x + static_cast<float>( interGlyphIndex ) * glyphAdvance;
+      quad.w = quad.y + selectionBoxInfo->lineHeight;
 
       // Store the min and max 'x' for each line.
-      selectionBoxInfo->minX = std::min( selectionBoxInfo->minX, xPosition );
-      selectionBoxInfo->maxX = std::max( selectionBoxInfo->maxX, xPositionAdvance );
+      selectionBoxInfo->minX = std::min( selectionBoxInfo->minX, quad.x );
+      selectionBoxInfo->maxX = std::max( selectionBoxInfo->maxX, quad.z );
 
-      mEventData->mDecorator->AddHighlight( xPosition,
-                                            yPosition,
-                                            xPositionAdvance,
-                                            yPosition + selectionBoxInfo->lineHeight );
+      mEventData->mDecorator->AddHighlight( actualNumberOfQuads,
+                                            quad );
+      ++actualNumberOfQuads;
 
       splitEndGlyph = false;
       continue;
     }
 
-    const float xPosition = lineRun->alignmentOffset + position.x - glyph.xBearing + mScrollPosition.x;
-    const float xPositionAdvance = xPosition + glyph.advance;
-    const float yPosition = selectionBoxInfo->lineOffset;
+    quad.x = lineRun->alignmentOffset + position.x - glyph.xBearing + mScrollPosition.x;
+    quad.y = selectionBoxInfo->lineOffset;
+    quad.z = quad.x + glyph.advance;
+    quad.w = quad.y + selectionBoxInfo->lineHeight;
 
     // Store the min and max 'x' for each line.
-    selectionBoxInfo->minX = std::min( selectionBoxInfo->minX, xPosition );
-    selectionBoxInfo->maxX = std::max( selectionBoxInfo->maxX, xPositionAdvance );
+    selectionBoxInfo->minX = std::min( selectionBoxInfo->minX, quad.x );
+    selectionBoxInfo->maxX = std::max( selectionBoxInfo->maxX, quad.z );
 
-    mEventData->mDecorator->AddHighlight( xPosition,
-                                          yPosition,
-                                          xPositionAdvance,
-                                          yPosition + selectionBoxInfo->lineHeight );
+    mEventData->mDecorator->AddHighlight( actualNumberOfQuads,
+                                          quad );
+    ++actualNumberOfQuads;
 
     // Whether to retrieve the next line.
     if( index == lastGlyphOfLine )
@@ -1891,7 +1985,7 @@ void Controller::Impl::RepositionSelectionHandles()
     const SelectionBoxInfo& info = *it;
 
     // Update the size of the highlighted text.
-    highLightSize.height += selectionBoxInfo->lineHeight;
+    highLightSize.height += info.lineHeight;
     minHighlightX = std::min( minHighlightX, info.minX );
     maxHighlightX = std::max( maxHighlightX, info.maxX );
   }
@@ -1909,11 +2003,15 @@ void Controller::Impl::RepositionSelectionHandles()
 
     if( boxifyBegin )
     {
+      quad.x = 0.f;
+      quad.y = firstSelectionBoxLineInfo.lineOffset;
+      quad.z = firstSelectionBoxLineInfo.minX;
+      quad.w = firstSelectionBoxLineInfo.lineOffset + firstSelectionBoxLineInfo.lineHeight;
+
       // Boxify at the beginning of the line.
-      mEventData->mDecorator->AddHighlight( 0.f,
-                                            firstSelectionBoxLineInfo.lineOffset,
-                                            firstSelectionBoxLineInfo.minX,
-                                            firstSelectionBoxLineInfo.lineOffset + firstSelectionBoxLineInfo.lineHeight );
+      mEventData->mDecorator->AddHighlight( actualNumberOfQuads,
+                                            quad );
+      ++actualNumberOfQuads;
 
       // Update the size of the highlighted text.
       minHighlightX = 0.f;
@@ -1921,11 +2019,15 @@ void Controller::Impl::RepositionSelectionHandles()
 
     if( boxifyEnd )
     {
+      quad.x = firstSelectionBoxLineInfo.maxX;
+      quad.y = firstSelectionBoxLineInfo.lineOffset;
+      quad.z = mVisualModel->mControlSize.width;
+      quad.w = firstSelectionBoxLineInfo.lineOffset + firstSelectionBoxLineInfo.lineHeight;
+
       // Boxify at the end of the line.
-      mEventData->mDecorator->AddHighlight( firstSelectionBoxLineInfo.maxX,
-                                            firstSelectionBoxLineInfo.lineOffset,
-                                            mVisualModel->mControlSize.width,
-                                            firstSelectionBoxLineInfo.lineOffset + firstSelectionBoxLineInfo.lineHeight );
+      mEventData->mDecorator->AddHighlight( actualNumberOfQuads,
+                                            quad );
+      ++actualNumberOfQuads;
 
       // Update the size of the highlighted text.
       maxHighlightX = mVisualModel->mControlSize.width;
@@ -1941,15 +2043,23 @@ void Controller::Impl::RepositionSelectionHandles()
       {
         const SelectionBoxInfo& info = *it;
 
-        mEventData->mDecorator->AddHighlight( 0.f,
-                                              info.lineOffset,
-                                              info.minX,
-                                              info.lineOffset + info.lineHeight );
+        quad.x = 0.f;
+        quad.y = info.lineOffset;
+        quad.z = info.minX;
+        quad.w = info.lineOffset + info.lineHeight;
 
-        mEventData->mDecorator->AddHighlight( info.maxX,
-                                              info.lineOffset,
-                                              mVisualModel->mControlSize.width,
-                                              info.lineOffset + info.lineHeight );
+        mEventData->mDecorator->AddHighlight( actualNumberOfQuads,
+                                              quad );
+        ++actualNumberOfQuads;
+
+        quad.x = info.maxX;
+        quad.y = info.lineOffset;
+        quad.z = mVisualModel->mControlSize.width;
+        quad.w = info.lineOffset + info.lineHeight;
+
+        mEventData->mDecorator->AddHighlight( actualNumberOfQuads,
+                                              quad );
+        ++actualNumberOfQuads;
       }
 
       // Update the size of the highlighted text.
@@ -1966,11 +2076,15 @@ void Controller::Impl::RepositionSelectionHandles()
 
     if( boxifyBegin )
     {
+      quad.x = 0.f;
+      quad.y = lastSelectionBoxLineInfo.lineOffset;
+      quad.z = lastSelectionBoxLineInfo.minX;
+      quad.w = lastSelectionBoxLineInfo.lineOffset + lastSelectionBoxLineInfo.lineHeight;
+
       // Boxify at the beginning of the line.
-      mEventData->mDecorator->AddHighlight( 0.f,
-                                            lastSelectionBoxLineInfo.lineOffset,
-                                            lastSelectionBoxLineInfo.minX,
-                                            lastSelectionBoxLineInfo.lineOffset + lastSelectionBoxLineInfo.lineHeight );
+      mEventData->mDecorator->AddHighlight( actualNumberOfQuads,
+                                            quad );
+      ++actualNumberOfQuads;
 
       // Update the size of the highlighted text.
       minHighlightX = 0.f;
@@ -1978,17 +2092,24 @@ void Controller::Impl::RepositionSelectionHandles()
 
     if( boxifyEnd )
     {
+      quad.x = lastSelectionBoxLineInfo.maxX;
+      quad.y = lastSelectionBoxLineInfo.lineOffset;
+      quad.z = mVisualModel->mControlSize.width;
+      quad.w = lastSelectionBoxLineInfo.lineOffset + lastSelectionBoxLineInfo.lineHeight;
+
       // Boxify at the end of the line.
-      mEventData->mDecorator->AddHighlight( lastSelectionBoxLineInfo.maxX,
-                                            lastSelectionBoxLineInfo.lineOffset,
-                                            mVisualModel->mControlSize.width,
-                                            lastSelectionBoxLineInfo.lineOffset + lastSelectionBoxLineInfo.lineHeight );
+      mEventData->mDecorator->AddHighlight( actualNumberOfQuads,
+                                            quad );
+      ++actualNumberOfQuads;
 
       // Update the size of the highlighted text.
       maxHighlightX = mVisualModel->mControlSize.width;
     }
   }
 
+  // Set the actual number of quads.
+  mEventData->mDecorator->ResizeHighlightQuads( actualNumberOfQuads );
+
   // Sets the highlight's size and position. In decorator's coords.
   // The highlight's height has been calculated above (before 'boxifying' the highlight).
   highLightSize.width = maxHighlightX - minHighlightX;
@@ -2057,24 +2178,40 @@ void Controller::Impl::RepositionSelectionHandles( float visualX, float visualY
   // Find which word was selected
   CharacterIndex selectionStart( 0 );
   CharacterIndex selectionEnd( 0 );
-  FindSelectionIndices( mVisualModel,
-                        mLogicalModel,
-                        mMetrics,
-                        visualX,
-                        visualY,
-                        selectionStart,
-                        selectionEnd );
+  const bool indicesFound = FindSelectionIndices( mVisualModel,
+                                                  mLogicalModel,
+                                                  mMetrics,
+                                                  visualX,
+                                                  visualY,
+                                                  selectionStart,
+                                                  selectionEnd );
   DALI_LOG_INFO( gLogFilter, Debug::Verbose, "%p selectionStart %d selectionEnd %d\n", this, selectionStart, selectionEnd );
 
-  if( selectionStart == selectionEnd )
+  if( indicesFound )
   {
-    ChangeState( EventData::EDITING );
-    // Nothing to select. i.e. a white space, out of bounds
-    return;
+    ChangeState( EventData::SELECTING );
+
+    mEventData->mLeftSelectionPosition = selectionStart;
+    mEventData->mRightSelectionPosition = selectionEnd;
+
+    mEventData->mUpdateLeftSelectionPosition = true;
+    mEventData->mUpdateRightSelectionPosition = true;
+    mEventData->mUpdateHighlightBox = true;
+
+    mEventData->mScrollAfterUpdatePosition = ( mEventData->mLeftSelectionPosition != mEventData->mRightSelectionPosition );
   }
+  else
+  {
+    // Nothing to select. i.e. a white space, out of bounds
+    ChangeState( EventData::EDITING );
+
+    mEventData->mPrimaryCursorPosition = selectionEnd;
 
-  mEventData->mLeftSelectionPosition = selectionStart;
-  mEventData->mRightSelectionPosition = selectionEnd;
+    mEventData->mUpdateCursorPosition = true;
+    mEventData->mUpdateGrabHandlePosition = true;
+    mEventData->mScrollAfterUpdatePosition = true;
+    mEventData->mUpdateInputStyle = true;
+  }
 }
 
 void Controller::Impl::SetPopupButtons()
@@ -2141,158 +2278,195 @@ void Controller::Impl::ChangeState( EventData::State newState )
 
   if( mEventData->mState != newState )
   {
+    mEventData->mPreviousState = mEventData->mState;
     mEventData->mState = newState;
 
-    if( EventData::INACTIVE == mEventData->mState )
-    {
-      mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
-      mEventData->mDecorator->StopCursorBlink();
-      mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
-      mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
-      mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
-      mEventData->mDecorator->SetPopupActive( false );
-      mEventData->mDecoratorUpdated = true;
-      HideClipboard();
-    }
-    else if( EventData::INTERRUPTED  == mEventData->mState)
-    {
-      mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
-      mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
-      mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
-      mEventData->mDecorator->SetPopupActive( false );
-      mEventData->mDecoratorUpdated = true;
-      HideClipboard();
-    }
-    else if( EventData::SELECTING == mEventData->mState )
+    switch( 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 )
+      case EventData::INACTIVE:
       {
-        SetPopupButtons();
-        mEventData->mDecorator->SetPopupActive( true );
-      }
-      mEventData->mDecoratorUpdated = true;
-    }
-    else if( EventData::EDITING == mEventData->mState )
-    {
-      mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
-      if( mEventData->mCursorBlinkEnabled )
-      {
-        mEventData->mDecorator->StartCursorBlink();
+        mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
+        mEventData->mDecorator->StopCursorBlink();
+        mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+        mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+        mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+        mEventData->mDecorator->SetHighlightActive( false );
+        mEventData->mDecorator->SetPopupActive( false );
+        mEventData->mDecoratorUpdated = true;
+        break;
       }
-      // Grab handle is not shown until a tap is received whilst EDITING
-      mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
-      mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
-      mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
-      if( mEventData->mGrabHandlePopupEnabled )
+      case EventData::INTERRUPTED:
       {
+        mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+        mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+        mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+        mEventData->mDecorator->SetHighlightActive( false );
         mEventData->mDecorator->SetPopupActive( false );
+        mEventData->mDecoratorUpdated = true;
+        break;
       }
-      mEventData->mDecoratorUpdated = true;
-      HideClipboard();
-    }
-    else if( EventData::EDITING_WITH_POPUP == mEventData->mState )
-    {
-      DALI_LOG_INFO( gLogFilter, Debug::Verbose, "EDITING_WITH_POPUP \n", newState );
-
-      mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
-      if( mEventData->mCursorBlinkEnabled )
+      case EventData::SELECTING:
       {
-        mEventData->mDecorator->StartCursorBlink();
+        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 );
+        mEventData->mDecorator->SetHighlightActive( true );
+        if( mEventData->mGrabHandlePopupEnabled )
+        {
+          SetPopupButtons();
+          mEventData->mDecorator->SetPopupActive( true );
+        }
+        mEventData->mDecoratorUpdated = true;
+        break;
       }
-      if( mEventData->mSelectionEnabled )
+      case EventData::EDITING:
       {
+        mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+        if( mEventData->mCursorBlinkEnabled )
+        {
+          mEventData->mDecorator->StartCursorBlink();
+        }
+        // Grab handle is not shown until a tap is received whilst EDITING
+        mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
         mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
         mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+        mEventData->mDecorator->SetHighlightActive( false );
+        if( mEventData->mGrabHandlePopupEnabled )
+        {
+          mEventData->mDecorator->SetPopupActive( false );
+        }
+        mEventData->mDecoratorUpdated = true;
+        break;
       }
-      else
+      case EventData::EDITING_WITH_POPUP:
       {
-        mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
+        DALI_LOG_INFO( gLogFilter, Debug::Verbose, "EDITING_WITH_POPUP \n", newState );
+
+        mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+        if( mEventData->mCursorBlinkEnabled )
+        {
+          mEventData->mDecorator->StartCursorBlink();
+        }
+        if( mEventData->mSelectionEnabled )
+        {
+          mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+          mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+          mEventData->mDecorator->SetHighlightActive( false );
+        }
+        else
+        {
+          mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
+        }
+        if( mEventData->mGrabHandlePopupEnabled )
+        {
+          SetPopupButtons();
+          mEventData->mDecorator->SetPopupActive( true );
+        }
+        mEventData->mDecoratorUpdated = true;
+        break;
       }
-      if( mEventData->mGrabHandlePopupEnabled )
+      case EventData::EDITING_WITH_GRAB_HANDLE:
       {
-        SetPopupButtons();
-        mEventData->mDecorator->SetPopupActive( true );
-      }
-      HideClipboard();
-      mEventData->mDecoratorUpdated = true;
-    }
-    else if( EventData::EDITING_WITH_GRAB_HANDLE == mEventData->mState )
-    {
-      DALI_LOG_INFO( gLogFilter, Debug::Verbose, "EDITING_WITH_GRAB_HANDLE \n", newState );
+        DALI_LOG_INFO( gLogFilter, Debug::Verbose, "EDITING_WITH_GRAB_HANDLE \n", newState );
 
-      mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
-      if( mEventData->mCursorBlinkEnabled )
-      {
-        mEventData->mDecorator->StartCursorBlink();
+        mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
+        if( mEventData->mCursorBlinkEnabled )
+        {
+          mEventData->mDecorator->StartCursorBlink();
+        }
+        // Grab handle is not shown until a tap is received whilst EDITING
+        mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
+        mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+        mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+        mEventData->mDecorator->SetHighlightActive( false );
+        if( mEventData->mGrabHandlePopupEnabled )
+        {
+          mEventData->mDecorator->SetPopupActive( false );
+        }
+        mEventData->mDecoratorUpdated = true;
+        break;
       }
-      // Grab handle is not shown until a tap is received whilst EDITING
-      mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
-      mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
-      mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
-      if( mEventData->mGrabHandlePopupEnabled )
+      case EventData::SELECTION_HANDLE_PANNING:
       {
-        mEventData->mDecorator->SetPopupActive( false );
+        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 );
+        mEventData->mDecorator->SetHighlightActive( true );
+        if( mEventData->mGrabHandlePopupEnabled )
+        {
+          mEventData->mDecorator->SetPopupActive( false );
+        }
+        mEventData->mDecoratorUpdated = true;
+        break;
       }
-      mEventData->mDecoratorUpdated = true;
-      HideClipboard();
-    }
-    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 )
+      case EventData::GRAB_HANDLE_PANNING:
       {
-        mEventData->mDecorator->SetPopupActive( false );
-      }
-      mEventData->mDecoratorUpdated = true;
-    }
-    else if( EventData::GRAB_HANDLE_PANNING == mEventData->mState )
-    {
-      DALI_LOG_INFO( gLogFilter, Debug::Verbose, "GRAB_HANDLE_PANNING \n", newState );
+        DALI_LOG_INFO( gLogFilter, Debug::Verbose, "GRAB_HANDLE_PANNING \n", newState );
 
-      mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
-      if( mEventData->mCursorBlinkEnabled )
-      {
-        mEventData->mDecorator->StartCursorBlink();
+        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 );
+        mEventData->mDecorator->SetHighlightActive( false );
+        if( mEventData->mGrabHandlePopupEnabled )
+        {
+          mEventData->mDecorator->SetPopupActive( false );
+        }
+        mEventData->mDecoratorUpdated = true;
+        break;
       }
-      mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
-      mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
-      mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
-      if( mEventData->mGrabHandlePopupEnabled )
+      case EventData::EDITING_WITH_PASTE_POPUP:
       {
-        mEventData->mDecorator->SetPopupActive( false );
-      }
-      mEventData->mDecoratorUpdated = true;
-    }
-    else if( EventData::EDITING_WITH_PASTE_POPUP == mEventData->mState )
-    {
-      DALI_LOG_INFO( gLogFilter, Debug::Verbose, "EDITING_WITH_PASTE_POPUP \n", newState );
+        DALI_LOG_INFO( gLogFilter, Debug::Verbose, "EDITING_WITH_PASTE_POPUP \n", newState );
 
-      mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
-      if( mEventData->mCursorBlinkEnabled )
-      {
-        mEventData->mDecorator->StartCursorBlink();
-      }
+        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 );
+        mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, true );
+        mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+        mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+        mEventData->mDecorator->SetHighlightActive( false );
 
-      if( mEventData->mGrabHandlePopupEnabled )
+        if( mEventData->mGrabHandlePopupEnabled )
+        {
+          SetPopupButtons();
+          mEventData->mDecorator->SetPopupActive( true );
+        }
+        mEventData->mDecoratorUpdated = true;
+        break;
+      }
+      case EventData::TEXT_PANNING:
       {
-        SetPopupButtons();
-        mEventData->mDecorator->SetPopupActive( true );
+        mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_NONE );
+        mEventData->mDecorator->StopCursorBlink();
+        mEventData->mDecorator->SetHandleActive( GRAB_HANDLE, false );
+        if( mEventData->mDecorator->IsHandleActive( LEFT_SELECTION_HANDLE ) ||
+            mEventData->mDecorator->IsHandleActive( RIGHT_SELECTION_HANDLE ) )
+        {
+          mEventData->mDecorator->SetHandleActive( LEFT_SELECTION_HANDLE, false );
+          mEventData->mDecorator->SetHandleActive( RIGHT_SELECTION_HANDLE, false );
+          mEventData->mDecorator->SetHighlightActive( true );
+        }
+
+        if( mEventData->mGrabHandlePopupEnabled )
+        {
+          mEventData->mDecorator->SetPopupActive( false );
+        }
+
+        mEventData->mDecoratorUpdated = true;
+        break;
       }
-      HideClipboard();
-      mEventData->mDecoratorUpdated = true;
     }
   }
 }
@@ -2492,13 +2666,13 @@ void Controller::Impl::UpdateSelectionHandle( HandleType handleType,
   mEventData->mAllTextSelected = ( startOfSelection == 0 ) && ( endOfSelection == mLogicalModel->mText.Count() );
 }
 
-void Controller::Impl::ClampHorizontalScroll( const Vector2& actualSize )
+void Controller::Impl::ClampHorizontalScroll( const Vector2& layoutSize )
 {
   // Clamp between -space & 0.
 
-  if( actualSize.width > mVisualModel->mControlSize.width )
+  if( layoutSize.width > mVisualModel->mControlSize.width )
   {
-    const float space = ( actualSize.width - mVisualModel->mControlSize.width );
+    const float space = ( layoutSize.width - mVisualModel->mControlSize.width );
     mScrollPosition.x = ( mScrollPosition.x < -space ) ? -space : mScrollPosition.x;
     mScrollPosition.x = ( mScrollPosition.x > 0.f ) ? 0.f : mScrollPosition.x;
 
@@ -2510,12 +2684,18 @@ void Controller::Impl::ClampHorizontalScroll( const Vector2& actualSize )
   }
 }
 
-void Controller::Impl::ClampVerticalScroll( const Vector2& actualSize )
+void Controller::Impl::ClampVerticalScroll( const Vector2& layoutSize )
 {
+  if( LayoutEngine::SINGLE_LINE_BOX == mLayoutEngine.GetLayout() )
+  {
+    // Nothing to do if the text is single line.
+    return;
+  }
+
   // Clamp between -space & 0.
-  if( actualSize.height > mVisualModel->mControlSize.height )
+  if( layoutSize.height > mVisualModel->mControlSize.height )
   {
-    const float space = ( actualSize.height - mVisualModel->mControlSize.height );
+    const float space = ( layoutSize.height - mVisualModel->mControlSize.height );
     mScrollPosition.y = ( mScrollPosition.y < -space ) ? -space : mScrollPosition.y;
     mScrollPosition.y = ( mScrollPosition.y > 0.f ) ? 0.f : mScrollPosition.y;
 
@@ -2579,7 +2759,10 @@ void Controller::Impl::ScrollTextToMatchCursor( const CursorInfo& cursorInfo )
 
 void Controller::Impl::RequestRelayout()
 {
-  mControlInterface.RequestTextRelayout();
+  if( NULL != mControlInterface )
+  {
+    mControlInterface->RequestTextRelayout();
+  }
 }
 
 } // namespace Text