Reposition the text's popup when the text is scrolled.

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / text / text-controller-impl.cpp

diff --git a/dali-toolkit/internal/text/text-controller-impl.cpp b/dali-toolkit/internal/text/text-controller-impl.cpp
index 2c45d35..9637245 100644 (file)
--- a/dali-toolkit/internal/text/text-controller-impl.cpp
+++ b/dali-toolkit/internal/text/text-controller-impl.cpp
@@ -91,6 +91,7 @@ EventData::EventData( DecoratorPtr decorator )
   mUpdateGrabHandlePosition( false ),
   mUpdateLeftSelectionPosition( false ),
   mUpdateRightSelectionPosition( false ),
+  mIsLeftHandleSelected( false ),
   mUpdateHighlightBox( false ),
   mScrollAfterUpdatePosition( false ),
   mScrollAfterDelete( false ),
@@ -218,16 +219,12 @@ 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 );
       }
     }
 
@@ -1203,17 +1200,31 @@ 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 +1232,7 @@ 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 +1241,17 @@ 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;
   }
 }
 
@@ -1302,6 +1323,9 @@ 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 +1343,9 @@ 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 +1388,7 @@ void Controller::Impl::OnHandleEvent( const Event& event )
 
       mEventData->mUpdateHighlightBox = true;
       mEventData->mUpdateLeftSelectionPosition = true;
+      mEventData->mUpdateRightSelectionPosition = true;
 
       if( handleStopScrolling || isSmoothHandlePanEnabled )
       {
@@ -1379,6 +1407,7 @@ void Controller::Impl::OnHandleEvent( const Event& event )
 
       mEventData->mUpdateHighlightBox = true;
       mEventData->mUpdateRightSelectionPosition = true;
+      mEventData->mUpdateLeftSelectionPosition = true;
 
       if( handleStopScrolling || isSmoothHandlePanEnabled )
       {
@@ -2152,158 +2181,201 @@ 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 )
-    {
-      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 )
-      {
-        SetPopupButtons();
-        mEventData->mDecorator->SetPopupActive( true );
-      }
-      mEventData->mDecoratorUpdated = true;
-    }
-    else if( EventData::EDITING == mEventData->mState )
+    switch( mEventData->mState )
     {
-      mEventData->mDecorator->SetActiveCursor( ACTIVE_CURSOR_PRIMARY );
-      if( mEventData->mCursorBlinkEnabled )
+      case EventData::INACTIVE:
       {
-        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;
+        HideClipboard();
+        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;
+        HideClipboard();
+        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;
+        HideClipboard();
+        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 );
+        }
+        HideClipboard();
+        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;
+        HideClipboard();
+        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 );
+        }
+        HideClipboard();
+        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;
     }
   }
 }