| /* |
| * Copyright (C) 2004 Zack Rusin <zack@kde.org> |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. |
| * All rights reserved. |
| * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org> |
| * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com> |
| * Copyright (C) 2011 Sencha, Inc. All rights reserved. |
| * Copyright (C) 2015 Google Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| * 02110-1301 USA |
| */ |
| |
| #include "third_party/blink/renderer/core/css/computed_style_css_value_mapping.h" |
| |
| #include "third_party/blink/renderer/core/css/css_custom_property_declaration.h" |
| #include "third_party/blink/renderer/core/css/css_value.h" |
| #include "third_party/blink/renderer/core/css/properties/longhands/custom_property.h" |
| #include "third_party/blink/renderer/core/css/property_registry.h" |
| #include "third_party/blink/renderer/core/style/computed_style.h" |
| |
| namespace blink { |
| |
| const CSSValue* ComputedStyleCSSValueMapping::Get( |
| const AtomicString custom_property_name, |
| const ComputedStyle& style, |
| const PropertyRegistry* registry) { |
| CustomProperty custom_property(custom_property_name, registry); |
| return custom_property.CSSValueFromComputedStyle( |
| style, nullptr /* layout_object */, nullptr /* styled_node */, |
| false /* allow_visited_style */); |
| } |
| |
| HeapHashMap<AtomicString, Member<const CSSValue>> |
| ComputedStyleCSSValueMapping::GetVariables(const ComputedStyle& style, |
| const PropertyRegistry* registry) { |
| HeapHashMap<AtomicString, Member<const CSSValue>> variables; |
| |
| StyleInheritedVariables* inherited = style.InheritedVariables(); |
| |
| if (inherited) { |
| for (const auto& name : inherited->GetCustomPropertyNames()) { |
| const CSSValue* value = |
| ComputedStyleCSSValueMapping::Get(name, style, registry); |
| if (value) |
| variables.Set(name, value); |
| } |
| } |
| |
| StyleNonInheritedVariables* non_inherited = style.NonInheritedVariables(); |
| |
| if (non_inherited) { |
| for (const auto& name : non_inherited->GetCustomPropertyNames()) { |
| const CSSValue* value = |
| ComputedStyleCSSValueMapping::Get(name, style, registry); |
| if (value) |
| variables.Set(name, value); |
| } |
| } |
| |
| // Registered properties with initial values are not stored explicitly on |
| // each computed style. Their initialness is instead indicated by the |
| // absence of that property on the computed style. This means that registered |
| // properties with an implicit initial value will not appear in the result of |
| // Style[Non]InheritedVariables::GetCustomPropertyNames, so we need to |
| // iterate though all registrations and add the initial values, if necessary. |
| if (registry) { |
| for (const auto& entry : *registry) { |
| if (variables.Contains(entry.key)) |
| continue; |
| const CSSValue* initial = entry.value->Initial(); |
| if (initial) |
| variables.Set(entry.key, initial); |
| } |
| } |
| |
| return variables; |
| } |
| |
| } // namespace blink |