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

// Copyright (c) 2014 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 "core/css/CSSContentDistributionValue.h"

#include "core/css/CSSValueList.h"
#include "platform/wtf/text/StringBuilder.h"

namespace blink {

CSSContentDistributionValue::CSSContentDistributionValue(
    CSSValueID distribution,
    CSSValueID position,
    CSSValueID overflow)
    : CSSValue(kCSSContentDistributionClass),
      distribution_(distribution),
      position_(position),
      overflow_(overflow) {}

CSSContentDistributionValue::~CSSContentDistributionValue() {}

String CSSContentDistributionValue::CustomCSSText() const {
  CSSValueList* list = CSSValueList::CreateSpaceSeparated();

  if (distribution_ != CSSValueInvalid)
    list->Append(*Distribution());
  if (position_ != CSSValueInvalid) {
    if (position_ == CSSValueFirstBaseline ||
        position_ == CSSValueLastBaseline) {
      CSSValueID preference =
          position_ == CSSValueFirstBaseline ? CSSValueFirst : CSSValueLast;
      list->Append(*CSSIdentifierValue::Create(preference));
      list->Append(*CSSIdentifierValue::Create(CSSValueBaseline));
    } else {
      list->Append(*GetPosition());
    }
  }
  if (overflow_ != CSSValueInvalid)
    list->Append(*Overflow());

  return list->CustomCSSText();
}

bool CSSContentDistributionValue::Equals(
    const CSSContentDistributionValue& other) const {
  return distribution_ == other.distribution_ && position_ == other.position_ &&
         overflow_ == other.overflow_;
}

}  // namespace blink