Skeleton implementation of CSS Properties and Values API

third_party/WebKit/Source/core/css/resolver/StyleBuilderCustom.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
@@ skipping 33 matching lines @@
 #include "core/css/CSSCursorImageValue.h"
 #include "core/css/CSSCustomPropertyDeclaration.h"
 #include "core/css/CSSFunctionValue.h"
 #include "core/css/CSSGridTemplateAreasValue.h"
 #include "core/css/CSSHelper.h"
 #include "core/css/CSSImageSetValue.h"
 #include "core/css/CSSPendingSubstitutionValue.h"
 #include "core/css/CSSPrimitiveValueMappings.h"
 #include "core/css/CSSPropertyMetadata.h"
 #include "core/css/CSSVariableReferenceValue.h"
+#include "core/css/PropertyRegistration.h"
+#include "core/css/PropertyRegistry.h"
 #include "core/css/StylePropertySet.h"
 #include "core/css/StyleRule.h"
 #include "core/css/resolver/CSSVariableResolver.h"
 #include "core/css/resolver/ElementStyleResources.h"
 #include "core/css/resolver/FilterOperationResolver.h"
 #include "core/css/resolver/FontBuilder.h"
 #include "core/css/resolver/StyleBuilder.h"
 #include "core/css/resolver/TransformBuilder.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
@@ skipping 727 matching lines @@
 }
 
 void StyleBuilderFunctions::applyValueCSSPropertyWebkitTextOrientation(StyleResolverState& state, const CSSValue& value)
 {
     state.setTextOrientation(toCSSPrimitiveValue(value).convertTo<TextOrientation>());
 }
 
 void StyleBuilderFunctions::applyValueCSSPropertyVariable(StyleResolverState& state, const CSSValue& value)
 {
     const CSSCustomPropertyDeclaration& declaration = toCSSCustomPropertyDeclaration(value);
+    const AtomicString& name = declaration.name();
+    const PropertyRegistry::Registration* registration = nullptr;
+    const PropertyRegistry* registry = state.document().propertyRegistry();
+    if (registry)
+        registration = registry->registration(name);
+
     switch (declaration.id()) {
     case CSSValueInitial:
-        state.style()->removeVariable(declaration.name());
+        state.style()->removeVariable(name);
         break;
 
     case CSSValueUnset:
     case CSSValueInherit: {
-        state.style()->removeVariable(declaration.name());
+        state.style()->removeVariable(name);
         StyleVariableData* parentVariables = state.parentStyle()->variables();
         if (!parentVariables)
             return;
-        CSSVariableData* value = parentVariables->getVariable(declaration.name());
+        CSSVariableData* value = parentVariables->getVariable(name);
         if (!value)
             return;
-        state.style()->setVariable(declaration.name(), value);
+        state.style()->setVariable(name, value);
+        if (registration)
+            state.style()->setRegisteredInheritedProperty(name, parentVariables->registeredInheritedProperty(name));
         break;
     }
     case CSSValueInternalVariableValue:
-        state.style()->setVariable(declaration.name(), declaration.value());
+        if (registration) {
+            if (declaration.value()->needsVariableResolution()) {
+                state.style()->setVariable(name, declaration.value());
+                return;
+            }
+            const CSSValue* parsedValue = declaration.value()->parseForSyntax(registration->syntax());
+            if (!parsedValue) {
+                state.style()->setVariable(name, nullptr);
+                state.style()->setRegisteredInheritedProperty(name, nullptr);
+                return;
+            }
+            parsedValue = &StyleBuilderConverter::convertRegisteredPropertyValue(state, *parsedValue);
+            state.style()->setVariable(name, declaration.value());
+            state.style()->setRegisteredInheritedProperty(name, parsedValue);
+            return;
+        }
+        state.style()->setVariable(name, declaration.value());
         break;
     default:
         NOTREACHED();
     }
 }
 
 void StyleBuilderFunctions::applyInheritCSSPropertyBaselineShift(StyleResolverState& state)
 {
     const SVGComputedStyle& parentSvgStyle = state.parentStyle()->svgStyle();
     EBaselineShift baselineShift = parentSvgStyle.baselineShift();
@@ skipping 28 matching lines @@
     }
 }
 
 void StyleBuilderFunctions::applyInheritCSSPropertyPosition(StyleResolverState& state)
 {
     if (!state.parentNode()->isDocumentNode())
         state.style()->setPosition(state.parentStyle()->position());
 }
 
 } // namespace blink