[ATSPI] Implementation of Hypertext and Hyperlink in text controls

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

diff --git a/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp b/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp
index 263b879..22990d9 100644 (file)
--- a/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp
+++ b/dali-toolkit/internal/controls/text-controls/text-label-impl.cpp
@@ -37,6 +37,7 @@
 #include <dali-toolkit/internal/text/text-effects-style.h>
 #include <dali-toolkit/internal/text/text-font-style.h>
 #include <dali-toolkit/internal/text/text-view.h>
+#include <dali-toolkit/internal/controls/text-controls/common-text-utils.h>
 #include <dali-toolkit/public-api/text/text-enumerations.h>
 
 #include <dali-toolkit/devel-api/controls/control-devel.h>
@@ -79,6 +80,7 @@ const std::string TEXT_FIT_ENABLE_KEY("enable");
 const std::string TEXT_FIT_MIN_SIZE_KEY("minSize");
 const std::string TEXT_FIT_MAX_SIZE_KEY("maxSize");
 const std::string TEXT_FIT_STEP_SIZE_KEY("stepSize");
+const std::string TEXT_FIT_FONT_SIZE_KEY("fontSize");
 const std::string TEXT_FIT_FONT_SIZE_TYPE_KEY("fontSizeType");
 
 #if defined(DEBUG_ENABLED)
@@ -143,6 +145,7 @@ DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit,    TextLabel, "textColo
 DALI_ANIMATABLE_PROPERTY_COMPONENT_REGISTRATION(Toolkit,    TextLabel, "textColorAlpha", TEXT_COLOR_ALPHA, TEXT_COLOR, 3)
 
 DALI_SIGNAL_REGISTRATION(Toolkit, TextLabel, "anchorClicked", SIGNAL_ANCHOR_CLICKED)
+DALI_SIGNAL_REGISTRATION(Toolkit, TextLabel, "textFitChanged", SIGNAL_TEXT_FIT_CHANGED)
 
 DALI_TYPE_REGISTRATION_END()
 // clang-format on
@@ -266,6 +269,17 @@ void TextLabel::SetProperty(BaseObject* object, Property::Index index, const Pro
       case Toolkit::TextLabel::Property::TEXT:
       {
         impl.mController->SetText(value.Get<std::string>());
+
+        if(impl.mController->HasAnchors())
+        {
+          // Forward input events to controller
+          impl.EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
+        }
+        else
+        {
+          impl.DisableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
+        }
+
         break;
       }
       case Toolkit::TextLabel::Property::FONT_FAMILY:
@@ -318,6 +332,16 @@ void TextLabel::SetProperty(BaseObject* object, Property::Index index, const Pro
       {
         const bool enableMarkup = value.Get<bool>();
         impl.mController->SetMarkupProcessorEnabled(enableMarkup);
+
+        if(impl.mController->HasAnchors())
+        {
+          // Forward input events to controller
+          impl.EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
+        }
+        else
+        {
+          impl.DisableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
+        }
         break;
       }
       case Toolkit::TextLabel::Property::ENABLE_AUTO_SCROLL:
@@ -464,6 +488,7 @@ void TextLabel::SetProperty(BaseObject* object, Property::Index index, const Pro
       case Toolkit::DevelTextLabel::Property::TEXT_FIT:
       {
         ParseTextFitProperty(impl.mController, value.GetMap());
+        impl.mController->SetTextFitChanged(true);
         break;
       }
       case Toolkit::DevelTextLabel::Property::MIN_LINE_SIZE:
@@ -708,12 +733,14 @@ Property::Value TextLabel::GetProperty(BaseObject* object, Property::Index index
         const float minSize  = impl.mController->GetTextFitMinSize();
         const float maxSize  = impl.mController->GetTextFitMaxSize();
         const float stepSize = impl.mController->GetTextFitStepSize();
+        const float pointSize = impl.mController->GetTextFitPointSize();
 
         Property::Map map;
         map.Insert(TEXT_FIT_ENABLE_KEY, enabled);
         map.Insert(TEXT_FIT_MIN_SIZE_KEY, minSize);
         map.Insert(TEXT_FIT_MAX_SIZE_KEY, maxSize);
         map.Insert(TEXT_FIT_STEP_SIZE_KEY, stepSize);
+        map.Insert(TEXT_FIT_FONT_SIZE_KEY, pointSize);
         map.Insert(TEXT_FIT_FONT_SIZE_TYPE_KEY, "pointSize");
 
         value = map;
@@ -755,6 +782,14 @@ bool TextLabel::DoConnectSignal(BaseObject* object, ConnectionTrackerInterface*
       labelImpl.AnchorClickedSignal().Connect(tracker, functor);
     }
   }
+  else if(0 == strcmp(signalName.c_str(), SIGNAL_TEXT_FIT_CHANGED))
+  {
+    if(label)
+    {
+      Internal::TextLabel& labelImpl(GetImpl(label));
+      labelImpl.TextFitChangedSignal().Connect(tracker, functor);
+    }
+  }
   else
   {
     // signalName does not match any signal
@@ -769,6 +804,11 @@ DevelTextLabel::AnchorClickedSignalType& TextLabel::AnchorClickedSignal()
   return mAnchorClickedSignal;
 }
 
+DevelTextLabel::TextFitChangedSignalType& TextLabel::TextFitChangedSignal()
+{
+  return mTextFitChangedSignal;
+}
+
 void TextLabel::OnInitialize()
 {
   Actor self = Self();
@@ -804,10 +844,6 @@ void TextLabel::OnInitialize()
 
   self.LayoutDirectionChangedSignal().Connect(this, &TextLabel::OnLayoutDirectionChanged);
 
-  // Forward input events to controller
-  EnableGestureDetection(static_cast<GestureType::Value>(GestureType::TAP));
-  GetTapGestureDetector().SetMaximumTapsRequired(1);
-
   Layout::Engine& engine = mController->GetLayoutEngine();
   engine.SetCursorWidth(0u); // Do not layout space for the cursor.
 
@@ -815,6 +851,9 @@ void TextLabel::OnInitialize()
     return std::unique_ptr<Dali::Accessibility::Accessible>(
       new AccessibleImpl(actor, Dali::Accessibility::Role::LABEL));
   });
+
+  Accessibility::Bridge::EnabledSignal().Connect(this, &TextLabel::OnAccessibilityStatusChanged);
+  Accessibility::Bridge::DisabledSignal().Connect(this, &TextLabel::OnAccessibilityStatusChanged);
 }
 
 void TextLabel::OnStyleChange(Toolkit::StyleManager styleManager, StyleChange::Type change)
@@ -858,9 +897,6 @@ void TextLabel::OnTap(const TapGesture& gesture)
   padding                   = Self().GetProperty<Extents>(Toolkit::Control::Property::PADDING);
   const Vector2& localPoint = gesture.GetLocalPoint();
   mController->AnchorEvent(localPoint.x - padding.start, localPoint.y - padding.top);
-
-  // parents can also listen for tap gesture events
-  Dali::DevelActor::SetNeedGesturePropagation(Self(), true);
 }
 
 void TextLabel::AnchorClicked(const std::string& href)
@@ -905,6 +941,12 @@ void TextLabel::OnPropertySet(Property::Index index, const Property::Value& prop
       }
       break;
     }
+    case Toolkit::TextLabel::Property::TEXT:
+    case Toolkit::TextLabel::Property::ENABLE_MARKUP:
+    {
+      CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
+      break;
+    }
     default:
     {
       Control::OnPropertySet(index, propertyValue); // up call to control for non-handled properties
@@ -983,6 +1025,12 @@ void TextLabel::OnRelayout(const Vector2& size, RelayoutContainer& container)
 
     mTextUpdateNeeded = false;
   }
+
+  if(mController->IsTextFitChanged())
+  {
+    EmitTextFitChangedSignal();
+    mController->SetTextFitChanged(false);
+  }
 }
 
 void TextLabel::RequestTextRelayout()
@@ -1066,6 +1114,17 @@ void TextLabel::OnLayoutDirectionChanged(Actor actor, LayoutDirection::Type type
   mController->ChangedLayoutDirection();
 }
 
+void TextLabel::EmitTextFitChangedSignal()
+{
+  Dali::Toolkit::TextLabel handle(GetOwner());
+  mTextFitChangedSignal.Emit(handle);
+}
+
+void TextLabel::OnAccessibilityStatusChanged()
+{
+  CommonTextUtils::SynchronizeTextAnchorsInParent(Self(), mController, mAnchorActors);
+}
+
 TextLabel::TextLabel()
 : Control(ControlBehaviour(CONTROL_BEHAVIOUR_DEFAULT)),
   mRenderingBackend(DEFAULT_RENDERING_BACKEND),
@@ -1126,8 +1185,8 @@ bool TextLabel::AccessibleImpl::SetCursorOffset(size_t offset)
 
 Dali::Accessibility::Range TextLabel::AccessibleImpl::GetTextAtOffset(size_t offset, Dali::Accessibility::TextBoundary boundary)
 {
-  auto self = Toolkit::TextLabel::DownCast(Self());
-  auto text = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
+  auto self     = Toolkit::TextLabel::DownCast(Self());
+  auto text     = self.GetProperty(Toolkit::TextLabel::Property::TEXT).Get<std::string>();
   auto textSize = text.size();
 
   auto range = Dali::Accessibility::Range{};
@@ -1148,7 +1207,7 @@ Dali::Accessibility::Range TextLabel::AccessibleImpl::GetTextAtOffset(size_t off
     case Dali::Accessibility::TextBoundary::LINE:
     {
       auto textString = text.c_str();
-      auto breaks = std::vector<char>(textSize, 0);
+      auto breaks     = std::vector<char>(textSize, 0);
 
       if(boundary == Dali::Accessibility::TextBoundary::WORD)
       {
@@ -1159,7 +1218,7 @@ Dali::Accessibility::Range TextLabel::AccessibleImpl::GetTextAtOffset(size_t off
         Accessibility::Accessible::FindLineSeparationsUtf8(reinterpret_cast<const utf8_t*>(textString), textSize, "", breaks.data());
       }
 
-      auto index = 0u;
+      auto index   = 0u;
       auto counter = 0u;
       while(index < textSize && counter <= offset)
       {
@@ -1223,8 +1282,8 @@ Dali::Accessibility::Range TextLabel::AccessibleImpl::GetRangeOfSelection(size_t
     return {};
   }
 
-  auto self  = Toolkit::TextLabel::DownCast(Self());
-  auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
+  auto        self       = Toolkit::TextLabel::DownCast(Self());
+  auto        controller = Dali::Toolkit::GetImpl(self).GetTextController();
   std::string value{};
   controller->RetrieveSelection(value);
   auto indices = controller->GetSelectionIndexes();
@@ -1258,6 +1317,30 @@ bool TextLabel::AccessibleImpl::SetRangeOfSelection(size_t selectionIndex, size_
   return true;
 }
 
+int32_t TextLabel::AccessibleImpl::GetLinkCount() const
+{
+  auto self = Toolkit::TextLabel::DownCast(Self());
+  return Dali::Toolkit::GetImpl(self).mAnchorActors.size();
+}
+
+Accessibility::Hyperlink* TextLabel::AccessibleImpl::GetLink(int32_t linkIndex) const
+{
+  if(linkIndex < 0 || linkIndex >= GetLinkCount())
+  {
+    return nullptr;
+  }
+  auto self        = Toolkit::TextLabel::DownCast(Self());
+  auto anchorActor = Dali::Toolkit::GetImpl(self).mAnchorActors[linkIndex];
+  return dynamic_cast<Accessibility::Hyperlink*>(Dali::Accessibility::Accessible::Get(anchorActor));
+}
+
+int32_t TextLabel::AccessibleImpl::GetLinkIndex(int32_t characterOffset) const
+{
+  auto self       = Toolkit::TextLabel::DownCast(Self());
+  auto controller = Dali::Toolkit::GetImpl(self).GetTextController();
+  return controller->GetAnchorIndex(static_cast<size_t>(characterOffset));
+}
+
 } // namespace Internal
 
 } // namespace Toolkit