X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=dali-toolkit%2Finternal%2Fcontrols%2Fslider%2Fslider-impl.cpp;h=3c48abc920721047244622dc5be72c6c36d03fb9;hb=refs%2Fchanges%2F76%2F244276%2F21;hp=742311ae6f1b19f639aeabe3082a7f1dfab7b965;hpb=81b6946e6eae9989ba04ba164adf9347e85efdfe;p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git

diff --git a/dali-toolkit/internal/controls/slider/slider-impl.cpp b/dali-toolkit/internal/controls/slider/slider-impl.cpp
index 742311a..3c48abc 100644
--- a/dali-toolkit/internal/controls/slider/slider-impl.cpp
+++ b/dali-toolkit/internal/controls/slider/slider-impl.cpp
@@ -203,8 +203,16 @@ void Slider::OnInitialize()
   // Size the Slider actor to a default
   self.SetProperty( Actor::Property::SIZE, Vector2( DEFAULT_HIT_REGION.x, DEFAULT_HIT_REGION.y ) );
 
+  // Set the Slider to be highlightable in Screen Reader mode
+  self.SetProperty( Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, true );
+
   // Connect to the touch signal
   self.TouchedSignal().Connect( this, &Slider::OnTouch );
+
+  DevelControl::SetAccessibilityConstructor( self, []( Dali::Actor actor ) {
+    return std::unique_ptr< Dali::Accessibility::Accessible >(
+      new AccessibleImpl( actor, Dali::Accessibility::Role::SLIDER ) );
+  } );
 }
 
 void Slider::OnRelayout( const Vector2& size, RelayoutContainer& container )
@@ -606,6 +614,7 @@ Toolkit::TextLabel Slider::CreatePopupText()
   textLabel.SetProperty( Toolkit::TextLabel::Property::HORIZONTAL_ALIGNMENT, "CENTER" );
   textLabel.SetProperty( Toolkit::TextLabel::Property::VERTICAL_ALIGNMENT, "CENTER" );
   textLabel.SetProperty( Actor::Property::PADDING, Padding( POPUP_TEXT_PADDING, POPUP_TEXT_PADDING, 0.0f, 0.0f ) );
+  textLabel.SetProperty( Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, false );
   return textLabel;
 }
 
@@ -689,6 +698,7 @@ void Slider::CreateHandleValueDisplay()
     mHandleValueTextLabel.SetProperty( Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER );
     mHandleValueTextLabel.SetProperty( Toolkit::TextLabel::Property::HORIZONTAL_ALIGNMENT, "CENTER" );
     mHandleValueTextLabel.SetProperty( Toolkit::TextLabel::Property::VERTICAL_ALIGNMENT, "CENTER" );
+    mHandleValueTextLabel.SetProperty( Toolkit::DevelControl::Property::ACCESSIBILITY_HIGHLIGHTABLE, false );
     mHandle.Add( mHandleValueTextLabel );
   }
 }
@@ -1409,6 +1419,83 @@ Property::Value Slider::GetProperty( BaseObject* object, Property::Index propert
   return value;
 }
 
+double Slider::AccessibleImpl::GetMinimum()
+{
+  auto p = Toolkit::Slider::DownCast( self );
+  return p.GetProperty( Toolkit::Slider::Property::LOWER_BOUND ).Get< float >();
+}
+
+double Slider::AccessibleImpl::GetCurrent()
+{
+  auto p = Toolkit::Slider::DownCast( self );
+  return p.GetProperty( Toolkit::Slider::Property::VALUE ).Get< float >();
+}
+
+double Slider::AccessibleImpl::GetMaximum()
+{
+  auto p = Toolkit::Slider::DownCast( self );
+  return p.GetProperty( Toolkit::Slider::Property::UPPER_BOUND ).Get< float >();
+}
+
+bool Slider::AccessibleImpl::SetCurrent( double current )
+{
+  if (current < GetMinimum() || current > GetMaximum())
+    return false;
+
+  auto p = Toolkit::Slider::DownCast( self );
+  auto &impl = Toolkit::GetImpl(p);
+
+  const float prev = p.GetProperty<float>(Toolkit::Slider::Property::VALUE);
+  float next = static_cast<float>(current);
+
+  if (fabsf(next - prev) < Math::MACHINE_EPSILON_0)
+  {
+    // do nothing
+  }
+  else if (p.GetProperty<bool>(Toolkit::Slider::Property::SNAP_TO_MARKS))
+  {
+    auto marks = p.GetProperty<Property::Array>(Toolkit::Slider::Property::MARKS);
+
+    int prevIdx;
+    if (impl.MarkReached(impl.MapValuePercentage(prev), prevIdx))
+    {
+      int nextIdx = prevIdx;
+      nextIdx += (next > prev) ? 1 : -1;
+
+      if (nextIdx < 0 || nextIdx >= static_cast<int>(marks.Count()))
+        return false;
+
+      next = marks[nextIdx].Get<float>();
+    }
+    else
+    {
+      next = impl.MapBounds(impl.SnapToMark(impl.MapValuePercentage(next)), impl.GetLowerBound(), impl.GetUpperBound());
+    }
+  }
+  else
+  {
+    next = impl.MapBounds(impl.MarkFilter(impl.MapValuePercentage(next)), impl.GetLowerBound(), impl.GetUpperBound());
+  }
+
+  impl.SetValue(next);
+  impl.DisplayPopup(next);
+
+  return true;
+}
+
+double Slider::AccessibleImpl::GetMinimumIncrement()
+{
+  auto p = Toolkit::Slider::DownCast( self );
+
+  bool hasMarks = !p.GetProperty<Property::Array>(Toolkit::Slider::Property::MARKS).Empty();
+  float tolerance = p.GetProperty<float>(Toolkit::Slider::Property::MARK_TOLERANCE);
+
+  if (!hasMarks || fabsf(tolerance) < 0.01)
+    return 0.0; // let screen-reader choose the increment
+
+  return Math::MACHINE_EPSILON_10000 + tolerance * (GetMaximum() - GetMinimum());
+}
+
 } // namespace Internal
 
 } // namespace Toolkit