third_party/WebKit/Source/core/html/LinkRelAttribute.cpp

/*
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#include "core/html/LinkRelAttribute.h"

namespace blink {

LinkRelAttribute::LinkRelAttribute(const String& rel)
    : m_iconType(InvalidIcon),
      m_isStyleSheet(false),
      m_isAlternate(false),
      m_isDNSPrefetch(false),
      m_isPreconnect(false),
      m_isLinkPrefetch(false),
      m_isLinkPreload(false),
      m_isLinkPrerender(false),
      m_isLinkNext(false),
      m_isImport(false),
      m_isManifest(false),
      m_isServiceWorker(false) {
  if (rel.isEmpty())
    return;
  String relCopy = rel;
  relCopy.replace('\n', ' ');
  Vector<String> list;
  relCopy.split(' ', list);
  for (const String& linkType : list) {
    if (equalIgnoringCase(linkType, "stylesheet")) {
      if (!m_isImport)
        m_isStyleSheet = true;
    } else if (equalIgnoringCase(linkType, "import")) {
      if (!m_isStyleSheet)
        m_isImport = true;
    } else if (equalIgnoringCase(linkType, "alternate")) {
      m_isAlternate = true;
    } else if (equalIgnoringCase(linkType, "icon")) {
      // This also allows "shortcut icon" since we just ignore the non-standard
      // "shortcut" token.
      // FIXME: This doesn't really follow the spec that requires "shortcut
      // icon" to be the entire string
      // http://www.whatwg.org/specs/web-apps/current-work/multipage/links.html#rel-icon
      m_iconType = Favicon;
    } else if (equalIgnoringCase(linkType, "prefetch")) {
      m_isLinkPrefetch = true;
    } else if (equalIgnoringCase(linkType, "dns-prefetch")) {
      m_isDNSPrefetch = true;
    } else if (equalIgnoringCase(linkType, "preconnect")) {
      m_isPreconnect = true;
    } else if (equalIgnoringCase(linkType, "preload")) {
      m_isLinkPreload = true;
    } else if (equalIgnoringCase(linkType, "prerender")) {
      m_isLinkPrerender = true;
    } else if (equalIgnoringCase(linkType, "next")) {
      m_isLinkNext = true;
    } else if (equalIgnoringCase(linkType, "apple-touch-icon")) {
      m_iconType = TouchIcon;
    } else if (equalIgnoringCase(linkType, "apple-touch-icon-precomposed")) {
      m_iconType = TouchPrecomposedIcon;
    } else if (equalIgnoringCase(linkType, "manifest")) {
      m_isManifest = true;
    } else if (equalIgnoringCase(linkType, "serviceworker")) {
      m_isServiceWorker = true;
    }
    // Adding or removing a value here requires you to update
    // RelList::supportedTokens()
  }
}

}  // namespace blink