text: /*
   * (C) 1999-2003 Lars Knoll (knoll@kde.org)
   * Copyright (C) 2004, 2006, 2007, 2012 Apple Inc. All rights reserved.
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Library 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
   * Library General Public License for more details.
   *
   * You should have received a copy of the GNU Library General Public License
   * along with this library; see the file COPYING.LIB.  If not, write to
   * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   * Boston, MA 02110-1301, USA.
   */
  
  #include "sky/engine/config.h"
  #include "sky/engine/core/css/StyleSheetContents.h"
  
  #include "sky/engine/core/css/CSSStyleSheet.h"
  #include "sky/engine/core/css/MediaList.h"
  #include "sky/engine/core/css/StylePropertySet.h"
  #include "sky/engine/core/css/StyleRule.h"
  #include "sky/engine/core/css/parser/BisonCSSParser.h"
  #include "sky/engine/core/dom/Document.h"
  #include "sky/engine/core/dom/Node.h"
  #include "sky/engine/core/dom/StyleEngine.h"
  #include "sky/engine/platform/TraceEvent.h"
  #include "sky/engine/wtf/Deque.h"
  
  namespace blink {
  
  StyleSheetContents::StyleSheetContents(Document* document, const CSSParserContext& context)
      : m_parserContext(context)
      , m_document(document)
  {
  }
  
  StyleSheetContents::~StyleSheetContents()
  {
      // TODO(esprehn): Why is this here? The rules will be cleared immediately
      // after this destructor runs anyway.
      m_childRules.clear();
  
      if (m_document && m_document->isActive())
          m_document->styleEngine()->removeSheet(this);
  }
  
  void StyleSheetContents::parserAppendRule(PassRefPtr<StyleRuleBase> rule)
  {
      m_childRules.append(rule);
  }
  
  bool StyleSheetContents::parseString(const String& sheetText)
  {
      CSSParserContext context(parserContext());
      BisonCSSParser p(context);
      p.parseSheet(this, sheetText);
      return true;
  }
  
  void StyleSheetContents::shrinkToFit()
  {
      m_childRules.shrinkToFit();
  }
  
  RuleSet& StyleSheetContents::ensureRuleSet()
  {
      if (!m_ruleSet) {
          m_ruleSet = RuleSet::create();
          m_ruleSet->addRulesFromSheet(this);
      }
      return *m_ruleSet.get();
  }
  
  }
  