[Experimental] CSSSerializer Proof-of-concept

third_party/WebKit/Source/core/css/CSSKeyframesRule.cpp

 /*
  * Copyright (C) 2007, 2008, 2012 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/css/CSSKeyframesRule.h"
 
 #include "core/css/CSSKeyframeRule.h"
 #include "core/css/CSSRuleList.h"
 #include "core/css/CSSStyleSheet.h"
 #include "core/css/parser/CSSParser.h"
+#include "core/css/serializer/CSSDeserializeStream.h"
+#include "core/css/serializer/CSSSerializeStream.h"
 #include "core/frame/UseCounter.h"
 #include "wtf/text/StringBuilder.h"
 
 namespace blink {
 
 StyleRuleKeyframes::StyleRuleKeyframes()
     : StyleRuleBase(Keyframes)
     , m_version(0)
 {
 }
@@ skipping 35 matching lines @@
     OwnPtr<Vector<double>> keys = CSSParser::parseKeyframeKeyList(key);
     if (!keys)
         return -1;
     for (size_t i = m_keyframes.size(); i--; ) {
         if (m_keyframes[i]->keys() == *keys)
             return i;
     }
     return -1;
 }
 
+void StyleRuleKeyframes::serializeAfterDispatch(CSSSerializeStream* stream) const
+{
+    stream->writeUnsigned(m_keyframes.size());
+    for (const RefPtrWillBeMember<StyleRuleKeyframe>& keyframe : m_keyframes)
+        keyframe->serialize(stream);
+
+    stream->writeAtomicString(m_name);
+    stream->writeUnsigned(m_version);
+    stream->writeBool(m_isPrefixed);
+}
+
+PassRefPtrWillBeRawPtr<StyleRuleKeyframes> StyleRuleKeyframes::deserializeAfterDispatch(CSSDeserializeStream* stream)
+{
+    RefPtrWillBeRawPtr<StyleRuleKeyframes> rule = adoptRefWillBeNoop(new StyleRuleKeyframes());
+    
+    unsigned size = stream->readUnsigned();
+    rule->m_keyframes.reserveCapacity(size);
+    for (unsigned i = 0; i < size; ++ i) {
+        RefPtrWillBeRawPtr<StyleRuleBase> keyframeRule = StyleRuleBase::deserialize(stream);
+        rule->m_keyframes.append(toStyleRuleKeyframe(keyframeRule.get()));
+    }
+
+    rule->m_name = stream->readAtomicString();
+    rule->m_version = stream->readUnsigned();
+    rule->m_isPrefixed = stream->readBool();
+
+    return rule.release();
+}
+
 DEFINE_TRACE_AFTER_DISPATCH(StyleRuleKeyframes)
 {
     visitor->trace(m_keyframes);
     StyleRuleBase::traceAfterDispatch(visitor);
 }
 
 CSSKeyframesRule::CSSKeyframesRule(StyleRuleKeyframes* keyframesRule, CSSStyleSheet* parent)
     : CSSRule(parent)
     , m_keyframesRule(keyframesRule)
     , m_childRuleCSSOMWrappers(keyframesRule->keyframes().size())
@@ skipping 121 matching lines @@
 {
     CSSRule::trace(visitor);
 #if ENABLE(OILPAN)
     visitor->trace(m_childRuleCSSOMWrappers);
 #endif
     visitor->trace(m_keyframesRule);
     visitor->trace(m_ruleListCSSOMWrapper);
 }
 
 } // namespace blink