third_party/WebKit/Source/core/css/parser/CSSParserMode.cpp

/*
 * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
 * Copyright (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc.
 * All rights reserved.
 * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
 * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
 * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
 * (http://www.torchmobile.com/)
 * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
 * Copyright (C) 2012 Intel Corporation. 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 "core/css/parser/CSSParserMode.h"

#include "core/dom/Document.h"
#include "core/frame/Settings.h"
#include "core/frame/csp/ContentSecurityPolicy.h"
#include "core/html/imports/HTMLImportTreeRoot.h"
#include "core/html/imports/HTMLImportsController.h"

namespace blink {

CSSParserContext::CSSParserContext(CSSParserMode mode, UseCounter* useCounter)
    : m_mode(mode),
      m_matchMode(mode),
      m_isHTMLDocument(false),
      m_useLegacyBackgroundSizeShorthandBehavior(false),
      m_shouldCheckContentSecurityPolicy(DoNotCheckContentSecurityPolicy),
      m_useCounter(useCounter) {}

CSSParserContext::CSSParserContext(const Document& document,
                                   UseCounter* useCounter,
                                   const KURL& baseURL,
                                   const String& charset)
    : m_baseURL(baseURL.isNull() ? document.baseURL() : baseURL),
      m_charset(charset),
      m_mode(document.inQuirksMode() ? HTMLQuirksMode : HTMLStandardMode),
      m_referrer(m_baseURL.strippedForUseAsReferrer(),
                 document.getReferrerPolicy()),
      m_isHTMLDocument(document.isHTMLDocument()),
      m_useLegacyBackgroundSizeShorthandBehavior(
          document.settings()
              ? document.settings()->useLegacyBackgroundSizeShorthandBehavior()
              : false),
      m_shouldCheckContentSecurityPolicy(DoNotCheckContentSecurityPolicy),
      m_useCounter(useCounter) {
  if (ContentSecurityPolicy::shouldBypassMainWorld(&document))
    m_shouldCheckContentSecurityPolicy = DoNotCheckContentSecurityPolicy;
  else
    m_shouldCheckContentSecurityPolicy = CheckContentSecurityPolicy;

  if (HTMLImportsController* importsController = document.importsController())
    m_matchMode = importsController->master()->inQuirksMode()
                      ? HTMLQuirksMode
                      : HTMLStandardMode;
  else
    m_matchMode = m_mode;
}

CSSParserContext::CSSParserContext(const CSSParserContext& other,
                                   UseCounter* useCounter)
    : m_baseURL(other.m_baseURL),
      m_charset(other.m_charset),
      m_mode(other.m_mode),
      m_matchMode(other.m_matchMode),
      m_referrer(other.m_referrer),
      m_isHTMLDocument(other.m_isHTMLDocument),
      m_useLegacyBackgroundSizeShorthandBehavior(
          other.m_useLegacyBackgroundSizeShorthandBehavior),
      m_shouldCheckContentSecurityPolicy(
          other.m_shouldCheckContentSecurityPolicy),
      m_useCounter(useCounter) {}

bool CSSParserContext::operator==(const CSSParserContext& other) const {
  return m_baseURL == other.m_baseURL && m_charset == other.m_charset &&
         m_mode == other.m_mode && m_matchMode == other.m_matchMode &&
         m_isHTMLDocument == other.m_isHTMLDocument &&
         m_useLegacyBackgroundSizeShorthandBehavior ==
             other.m_useLegacyBackgroundSizeShorthandBehavior;
}

const CSSParserContext& strictCSSParserContext() {
  DEFINE_STATIC_LOCAL(CSSParserContext, strictContext,
                      (HTMLStandardMode, nullptr));
  return strictContext;
}

KURL CSSParserContext::completeURL(const String& url) const {
  if (url.isNull())
    return KURL();
  if (charset().isEmpty())
    return KURL(baseURL(), url);
  return KURL(baseURL(), url, charset());
}

}  // namespace blink