| // Copyright 2015 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "third_party/blink/renderer/core/css/cssom/css_keyword_value.h" |
| |
| #include "third_party/blink/renderer/core/css/css_custom_ident_value.h" |
| #include "third_party/blink/renderer/core/css/css_identifier_value.h" |
| #include "third_party/blink/renderer/core/css/css_inherited_value.h" |
| #include "third_party/blink/renderer/core/css/css_initial_value.h" |
| #include "third_party/blink/renderer/core/css/css_revert_value.h" |
| #include "third_party/blink/renderer/core/css/css_unset_value.h" |
| #include "third_party/blink/renderer/core/css/parser/css_property_parser.h" |
| #include "third_party/blink/renderer/platform/bindings/exception_state.h" |
| #include "third_party/blink/renderer/platform/wtf/text/atomic_string.h" |
| |
| namespace blink { |
| |
| CSSKeywordValue* CSSKeywordValue::Create(const String& keyword, |
| ExceptionState& exception_state) { |
| if (keyword.IsEmpty()) { |
| exception_state.ThrowTypeError( |
| "CSSKeywordValue does not support empty strings"); |
| return nullptr; |
| } |
| return MakeGarbageCollected<CSSKeywordValue>(keyword); |
| } |
| |
| CSSKeywordValue* CSSKeywordValue::FromCSSValue(const CSSValue& value) { |
| if (value.IsInheritedValue()) { |
| return MakeGarbageCollected<CSSKeywordValue>( |
| getValueName(CSSValueID::kInherit)); |
| } |
| if (value.IsInitialValue()) { |
| return MakeGarbageCollected<CSSKeywordValue>( |
| getValueName(CSSValueID::kInitial)); |
| } |
| if (value.IsUnsetValue()) { |
| return MakeGarbageCollected<CSSKeywordValue>( |
| getValueName(CSSValueID::kUnset)); |
| } |
| if (value.IsRevertValue()) { |
| return MakeGarbageCollected<CSSKeywordValue>( |
| getValueName(CSSValueID::kRevert)); |
| } |
| if (auto* identifier_value = DynamicTo<CSSIdentifierValue>(value)) { |
| return MakeGarbageCollected<CSSKeywordValue>( |
| getValueName(identifier_value->GetValueID())); |
| } |
| if (const auto* ident_value = DynamicTo<CSSCustomIdentValue>(value)) { |
| if (ident_value->IsKnownPropertyID()) { |
| // CSSPropertyID represents the LHS of a CSS declaration, and |
| // CSSKeywordValue represents a RHS. |
| return nullptr; |
| } |
| return MakeGarbageCollected<CSSKeywordValue>(ident_value->Value()); |
| } |
| NOTREACHED(); |
| return nullptr; |
| } |
| |
| CSSKeywordValue* CSSKeywordValue::Create(const String& keyword) { |
| DCHECK(!keyword.IsEmpty()); |
| return MakeGarbageCollected<CSSKeywordValue>(keyword); |
| } |
| |
| const String& CSSKeywordValue::value() const { |
| return keyword_value_; |
| } |
| |
| void CSSKeywordValue::setValue(const String& keyword, |
| ExceptionState& exception_state) { |
| if (keyword.IsEmpty()) { |
| exception_state.ThrowTypeError( |
| "CSSKeywordValue does not support empty strings"); |
| return; |
| } |
| keyword_value_ = keyword; |
| } |
| |
| CSSValueID CSSKeywordValue::KeywordValueID() const { |
| return CssValueKeywordID(keyword_value_); |
| } |
| |
| const CSSValue* CSSKeywordValue::ToCSSValue() const { |
| CSSValueID keyword_id = KeywordValueID(); |
| switch (keyword_id) { |
| case (CSSValueID::kInherit): |
| return CSSInheritedValue::Create(); |
| case (CSSValueID::kInitial): |
| return CSSInitialValue::Create(); |
| case (CSSValueID::kUnset): |
| return cssvalue::CSSUnsetValue::Create(); |
| case (CSSValueID::kRevert): |
| return cssvalue::CSSRevertValue::Create(); |
| case (CSSValueID::kInvalid): |
| return MakeGarbageCollected<CSSCustomIdentValue>( |
| AtomicString(keyword_value_)); |
| default: |
| return CSSIdentifierValue::Create(keyword_id); |
| } |
| } |
| |
| } // namespace blink |