+ // If don't have any text, do nothing.
+ if( !mImpl->mTextUpdateInfo.mPreviousNumberOfCharacters )
+ {
+ return false;
+ }
+
+ uint32_t cursorPosition = mImpl->mEventData->mPrimaryCursorPosition;
+ uint32_t numberOfCharacters = mImpl->mTextUpdateInfo.mPreviousNumberOfCharacters;
+ uint32_t cursorLine = mImpl->mModel->mVisualModel->GetLineOfCharacter( cursorPosition );
+ uint32_t numberOfLines = mImpl->mModel->GetNumberOfLines();
+
+ // Logic to determine whether this text control will lose focus or not.
+ if( ( Dali::DALI_KEY_CURSOR_LEFT == keyCode && 0 == cursorPosition ) ||
+ ( Dali::DALI_KEY_CURSOR_RIGHT == keyCode && numberOfCharacters == cursorPosition) ||
+ ( Dali::DALI_KEY_CURSOR_DOWN == keyCode && cursorLine == numberOfLines -1 ) ||
+ ( Dali::DALI_KEY_CURSOR_DOWN == keyCode && numberOfCharacters == cursorPosition && cursorLine -1 == numberOfLines -1 ) ||
+ ( Dali::DALI_KEY_CURSOR_UP == keyCode && cursorLine == 0 ) ||
+ ( Dali::DALI_KEY_CURSOR_UP == keyCode && numberOfCharacters == cursorPosition && cursorLine == 1 ) )
+ {
+ return false;
+ }
+
+ mImpl->mEventData->mCheckScrollAmount = true;