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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #include "core/css/cssom/TransformValue.h" | |
| 6 | |
| 7 #include "core/css/CSSValueList.h" | |
| 8 #include "core/css/cssom/CSSTransformComponent.h" | |
| 9 | |
| 10 namespace blink { | |
| 11 | |
| 12 namespace { | |
| 13 | |
| 14 class TransformValueIterationSource final : public ValueIterable<CSSTransformCom
ponent*>::IterationSource { | |
| 15 public: | |
| 16 explicit TransformValueIterationSource(TransformValue* transformValue) | |
| 17 : m_transformValue(transformValue) | |
| 18 { | |
| 19 } | |
| 20 | |
| 21 bool next(ScriptState*, CSSTransformComponent*& value, ExceptionState&) over
ride | |
| 22 { | |
| 23 if (m_index >= m_transformValue->size()) { | |
| 24 return false; | |
| 25 } | |
| 26 value = m_transformValue->componentAtIndex(m_index); | |
| 27 return true; | |
| 28 } | |
| 29 | |
| 30 DEFINE_INLINE_VIRTUAL_TRACE() | |
| 31 { | |
| 32 visitor->trace(m_transformValue); | |
| 33 ValueIterable<CSSTransformComponent*>::IterationSource::trace(visitor); | |
| 34 } | |
| 35 | |
| 36 private: | |
| 37 const Member<TransformValue> m_transformValue; | |
| 38 }; | |
| 39 | |
| 40 } // namespace | |
| 41 | |
| 42 TransformValue* TransformValue::fromCSSValue(const CSSValue& cssValue) | |
| 43 { | |
| 44 if (!cssValue.isValueList()) { | |
| 45 // TODO(meade): Also need to check the separator here if we care. | |
| 46 return nullptr; | |
| 47 } | |
| 48 HeapVector<Member<CSSTransformComponent>> components; | |
| 49 for (const CSSValue* value : toCSSValueList(cssValue)) { | |
| 50 CSSTransformComponent* component = CSSTransformComponent::fromCSSValue(*
value); | |
| 51 if (!component) | |
| 52 return nullptr; | |
| 53 components.append(component); | |
| 54 } | |
| 55 return TransformValue::create(components); | |
| 56 } | |
| 57 | |
| 58 ValueIterable<CSSTransformComponent*>::IterationSource* TransformValue::startIte
ration(ScriptState*, ExceptionState&) | |
| 59 { | |
| 60 return new TransformValueIterationSource(this); | |
| 61 } | |
| 62 | |
| 63 bool TransformValue::is2D() const | |
| 64 { | |
| 65 for (size_t i = 0; i < m_transformComponents.size(); i++) { | |
| 66 if (!m_transformComponents[i]->is2DComponent()) { | |
| 67 return false; | |
| 68 } | |
| 69 } | |
| 70 return true; | |
| 71 } | |
| 72 | |
| 73 CSSValue* TransformValue::toCSSValue() const | |
| 74 { | |
| 75 CSSValueList* transformCSSValue = CSSValueList::createSpaceSeparated(); | |
| 76 for (size_t i = 0; i < m_transformComponents.size(); i++) { | |
| 77 transformCSSValue->append(*m_transformComponents[i]->toCSSValue()); | |
| 78 } | |
| 79 return transformCSSValue; | |
| 80 } | |
| 81 | |
| 82 } // namespace blink | |
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