[ATSPI] Blocking unwanted emission of "MoveOuted" signal

[platform/core/uifw/dali-toolkit.git] / dali-toolkit / internal / controls / control / control-data-impl.cpp

diff --git a/dali-toolkit/internal/controls/control/control-data-impl.cpp b/dali-toolkit/internal/controls/control/control-data-impl.cpp
index db346bd..ced845a 100644 (file)
--- a/dali-toolkit/internal/controls/control/control-data-impl.cpp
+++ b/dali-toolkit/internal/controls/control/control-data-impl.cpp
@@ -410,6 +410,40 @@ void SetVisualsOffScene(const RegisteredVisualContainer& container, Actor parent
   }
 }
 
+Dali::Rect<> GetShowingGeometry(Dali::Rect<> rect, Dali::Toolkit::DevelControl::AccessibleImpl* accessibleImpl)
+{
+  Rect<>  parentRect;
+  Vector2 currentPosition;
+  auto    parent = dynamic_cast<Toolkit::DevelControl::AccessibleImpl*>(accessibleImpl->GetParent());
+
+  while(parent)
+  {
+    parentRect = parent->GetExtents(Dali::Accessibility::CoordinateType::WINDOW);
+
+    currentPosition.x = rect.x;
+    currentPosition.y = rect.y;
+
+    rect.x      = rect.x > parentRect.x ? rect.x : parentRect.x;
+    rect.y      = rect.y > parentRect.y ? rect.y : parentRect.y;
+    rect.width  = currentPosition.x + rect.width < parentRect.x + parentRect.width ? currentPosition.x + rect.width - rect.x : parentRect.x + parentRect.width - rect.x;
+    rect.height = currentPosition.y + rect.height < parentRect.y + parentRect.height ? currentPosition.y + rect.height - rect.y : parentRect.y + parentRect.height - rect.y;
+
+    if(rect.width < 0 || rect.height < 0)
+    {
+      return rect;
+    }
+
+    parent = dynamic_cast<Toolkit::DevelControl::AccessibleImpl*>(parent->GetParent());
+  }
+
+  return rect;
+}
+
+static bool IsShowingGeometryOnScreen(Dali::Rect<> rect)
+{
+  return rect.width > 0 && rect.height > 0;
+}
+
 } // unnamed namespace
 
 // clang-format off
@@ -518,6 +552,90 @@ const Control::Impl& Control::Impl::Get(const Internal::Control& internalControl
   return *internalControl.mImpl;
 }
 
+void Control::Impl::CheckHighlightedObjectGeometry()
+{
+  auto accessibleImpl = dynamic_cast<Dali::Toolkit::DevelControl::AccessibleImpl*>(mAccessibilityObject.get());
+  if(!accessibleImpl)
+  {
+    DALI_LOG_ERROR("accessibleImpl is not a pointer to a DevelControl::AccessibleImpl type");
+    return;
+  }
+
+  auto lastPosition   = accessibleImpl->GetLastPosition();
+  auto accessibleRect = accessibleImpl->GetExtents(Dali::Accessibility::CoordinateType::WINDOW);
+  auto rect = GetShowingGeometry(accessibleRect, accessibleImpl);
+
+  switch(mAccessibilityLastScreenRelativeMoveType)
+  {
+    case Dali::Accessibility::ScreenRelativeMoveType::OUTSIDE:
+    {
+      if(IsShowingGeometryOnScreen(rect))
+      {
+        mAccessibilityLastScreenRelativeMoveType = Dali::Accessibility::ScreenRelativeMoveType::INSIDE;
+      }
+      break;
+    }
+    case Dali::Accessibility::ScreenRelativeMoveType::INSIDE:
+    {
+      if(rect.width < 0 && accessibleRect.x != lastPosition.x)
+      {
+        mAccessibilityLastScreenRelativeMoveType = (accessibleRect.x < lastPosition.x) ? Dali::Accessibility::ScreenRelativeMoveType::OUTGOING_TOP_LEFT : Dali::Accessibility::ScreenRelativeMoveType::OUTGOING_BOTTOM_RIGHT;
+      }
+      if(rect.height < 0 && accessibleRect.y != lastPosition.y)
+      {
+        mAccessibilityLastScreenRelativeMoveType = (accessibleRect.y < lastPosition.y) ? Dali::Accessibility::ScreenRelativeMoveType::OUTGOING_TOP_LEFT : Dali::Accessibility::ScreenRelativeMoveType::OUTGOING_BOTTOM_RIGHT;
+      }
+      // notify AT-clients on outgoing moves only
+      if(mAccessibilityLastScreenRelativeMoveType != Dali::Accessibility::ScreenRelativeMoveType::INSIDE)
+      {
+        mAccessibilityObject.get()->EmitMovedOutOfScreen(mAccessibilityLastScreenRelativeMoveType);
+      }
+      break;
+    }
+    case Dali::Accessibility::ScreenRelativeMoveType::OUTGOING_TOP_LEFT:
+    case Dali::Accessibility::ScreenRelativeMoveType::OUTGOING_BOTTOM_RIGHT:
+    {
+      if(IsShowingGeometryOnScreen(rect))
+      {
+        mAccessibilityLastScreenRelativeMoveType = Dali::Accessibility::ScreenRelativeMoveType::INSIDE;
+      }
+      else
+      {
+        mAccessibilityLastScreenRelativeMoveType = Dali::Accessibility::ScreenRelativeMoveType::OUTSIDE;
+      }
+      break;
+    }
+    default:
+    {
+      break;
+    }
+  }
+
+  accessibleImpl->SetLastPosition(Vector2(accessibleRect.x, accessibleRect.y));
+}
+
+void Control::Impl::RegisterAccessibilityPositionPropertyNotification()
+{
+  if(mIsAccessibilityPositionPropertyNotificationSet)
+  {
+    return;
+  }
+  // set default value until first move of object is detected
+  mAccessibilityLastScreenRelativeMoveType = Dali::Accessibility::ScreenRelativeMoveType::OUTSIDE;
+  // recalculate mAccessibilityLastScreenRelativeMoveType accordingly to the initial position
+  CheckHighlightedObjectGeometry();
+  mAccessibilityPositionNotification       = mControlImpl.Self().AddPropertyNotification(Actor::Property::WORLD_POSITION, StepCondition(1.0f, 1.0f));
+  mAccessibilityPositionNotification.SetNotifyMode(PropertyNotification::NOTIFY_ON_CHANGED);
+  mAccessibilityPositionNotification.NotifySignal().Connect(this, [this](PropertyNotification&){ CheckHighlightedObjectGeometry(); });
+  mIsAccessibilityPositionPropertyNotificationSet = true;
+}
+
+void Control::Impl::UnregisterAccessibilityPositionPropertyNotification()
+{
+  mControlImpl.Self().RemovePropertyNotification(mAccessibilityPositionNotification);
+  mIsAccessibilityPositionPropertyNotificationSet = false;
+}
+
 // Gesture Detection Methods
 void Control::Impl::PinchDetected(Actor actor, const PinchGesture& pinch)
 {