bool LinkLoader::loadLink(const LinkRelAttribute& relAttribute, CrossOriginAttributeValue crossOrigin, const String& type, const String& as, const String& media, ReferrerPolicy referrerPolicy, const KURL& href, Document& document, const NetworkHintsInterface& networkHintsInterface) { if (!m_client->shouldLoadLink()) return false; dnsPrefetchIfNeeded(relAttribute, href, document, networkHintsInterface, LinkCalledFromMarkup); preconnectIfNeeded(relAttribute, href, document, crossOrigin, networkHintsInterface, LinkCalledFromMarkup); bool errorOccurred = false; createLinkPreloadResourceClient(preloadIfNeeded( relAttribute, href, document, as, type, media, crossOrigin, LinkCalledFromMarkup, errorOccurred, nullptr, referrerPolicy)); if (errorOccurred) m_linkLoadingErrorTimer.startOneShot(0, BLINK_FROM_HERE); if (href.isEmpty() || !href.isValid()) released(); prefetchIfNeeded(document, href, relAttribute, crossOrigin, referrerPolicy); if (const unsigned prerenderRelTypes = prerenderRelTypesFromRelAttribute(relAttribute, document)) { if (!m_prerender) { m_prerender = PrerenderHandle::create(document, this, href, prerenderRelTypes); } else if (m_prerender->url() != href) { m_prerender->cancel(); m_prerender = PrerenderHandle::create(document, this, href, prerenderRelTypes); } // TODO(gavinp): Handle changes to rel types of existing prerenders. } else if (m_prerender) { m_prerender->cancel(); m_prerender.clear(); } return true; }
bool LinkLoader::loadLink(const LinkRelAttribute& relAttribute, CrossOriginAttributeValue crossOrigin, const String& type, const String& as, const String& media, const KURL& href, Document& document, const NetworkHintsInterface& networkHintsInterface) { // TODO(yoav): Do all links need to load only after they're in document??? // TODO(yoav): Convert all uses of the CrossOriginAttribute to CrossOriginAttributeValue. crbug.com/486689 // FIXME(crbug.com/463266): We're ignoring type here, for everything but preload. Maybe we shouldn't. dnsPrefetchIfNeeded(relAttribute, href, document, networkHintsInterface, LinkCalledFromMarkup); preconnectIfNeeded(relAttribute, href, document, crossOrigin, networkHintsInterface, LinkCalledFromMarkup); bool errorOccurred = false; if (m_client->shouldLoadLink()) createLinkPreloadResourceClient(preloadIfNeeded(relAttribute, href, document, as, type, media, crossOrigin, LinkCalledFromMarkup, errorOccurred, nullptr)); if (errorOccurred) m_linkLoadingErrorTimer.startOneShot(0, BLINK_FROM_HERE); if (href.isEmpty() || !href.isValid()) released(); // FIXME(crbug.com/323096): Should take care of import. if (relAttribute.isLinkPrefetch() && href.isValid() && document.frame()) { if (!m_client->shouldLoadLink()) return false; UseCounter::count(document, UseCounter::LinkRelPrefetch); FetchRequest linkRequest(ResourceRequest(document.completeURL(href)), FetchInitiatorTypeNames::link); if (crossOrigin != CrossOriginAttributeNotSet) linkRequest.setCrossOriginAccessControl(document.getSecurityOrigin(), crossOrigin); setResource(LinkFetchResource::fetch(Resource::LinkPrefetch, linkRequest, document.fetcher())); } if (const unsigned prerenderRelTypes = prerenderRelTypesFromRelAttribute(relAttribute, document)) { if (!m_prerender) { m_prerender = PrerenderHandle::create(document, this, href, prerenderRelTypes); } else if (m_prerender->url() != href) { m_prerender->cancel(); m_prerender = PrerenderHandle::create(document, this, href, prerenderRelTypes); } // TODO(gavinp): Handle changes to rel types of existing prerenders. } else if (m_prerender) { m_prerender->cancel(); m_prerender.clear(); } return true; }