C++ ApplicationCache::isComplete方法代码示例

bool ApplicationCacheHost::shouldLoadResourceFromApplicationCache(const ResourceRequest& originalRequest, ApplicationCacheResource*& resource)
{
    ApplicationCache* cache = applicationCache();
    if (!cache || !cache->isComplete())
        return false;

    ResourceRequest request(originalRequest);
    if (Frame* loaderFrame = m_documentLoader.frame()) {
        if (Document* document = loaderFrame->document())
            document->contentSecurityPolicy()->upgradeInsecureRequestIfNeeded(request, ContentSecurityPolicy::InsecureRequestType::Load);
    }
    
    // If the resource is not to be fetched using the HTTP GET mechanism or equivalent, or if its URL has a different
    // <scheme> component than the application cache's manifest, then fetch the resource normally.
    if (!ApplicationCache::requestIsHTTPOrHTTPSGet(request) || !equalIgnoringASCIICase(request.url().protocol(), cache->manifestResource()->url().protocol()))
        return false;

    // If the resource's URL is an master entry, the manifest, an explicit entry, or a fallback entry
    // in the application cache, then get the resource from the cache (instead of fetching it).
    resource = cache->resourceForURL(request.url());

    // Resources that match fallback namespaces or online whitelist entries are fetched from the network,
    // unless they are also cached.
    if (!resource && (cache->allowsAllNetworkRequests() || cache->urlMatchesFallbackNamespace(request.url()) || cache->isURLInOnlineWhitelist(request.url())))
        return false;

    // Resources that are not present in the manifest will always fail to load (at least, after the
    // cache has been primed the first time), making the testing of offline applications simpler.
    return true;
}

ApplicationCacheHost::CacheInfo ApplicationCacheHost::applicationCacheInfo()
{
    ApplicationCache* cache = applicationCache();
    if (!cache || !cache->isComplete())
        return CacheInfo(URL(), 0, 0, 0);
  
    // FIXME: Add "Creation Time" and "Update Time" to Application Caches.
    return CacheInfo(cache->manifestResource()->url(), 0, 0, cache->estimatedSizeInStorage());
}

void ApplicationCacheHost::fillResourceList(ResourceInfoList* resources)
{
    ApplicationCache* cache = applicationCache();
    if (!cache || !cache->isComplete())
        return;
    
    for (const auto& urlAndResource : *cache) {
        RefPtr<ApplicationCacheResource> resource = urlAndResource.value;
        unsigned type = resource->type();
        bool isMaster   = type & ApplicationCacheResource::Master;
        bool isManifest = type & ApplicationCacheResource::Manifest;
        bool isExplicit = type & ApplicationCacheResource::Explicit;
        bool isForeign  = type & ApplicationCacheResource::Foreign;
        bool isFallback = type & ApplicationCacheResource::Fallback;
        resources->append(ResourceInfo(resource->url(), isMaster, isManifest, isFallback, isForeign, isExplicit, resource->estimatedSizeInStorage()));
    }
}

void ApplicationCacheHost::fillResourceList(ResourceInfoList* resources)
{
    ApplicationCache* cache = applicationCache();
    if (!cache || !cache->isComplete())
        return;
     
    ApplicationCache::ResourceMap::const_iterator end = cache->end();
    for (ApplicationCache::ResourceMap::const_iterator it = cache->begin(); it != end; ++it) {
        RefPtr<ApplicationCacheResource> resource = it->value;
        unsigned type = resource->type();
        bool isMaster   = type & ApplicationCacheResource::Master;
        bool isManifest = type & ApplicationCacheResource::Manifest;
        bool isExplicit = type & ApplicationCacheResource::Explicit;
        bool isForeign  = type & ApplicationCacheResource::Foreign;
        bool isFallback = type & ApplicationCacheResource::Fallback;
        resources->append(ResourceInfo(resource->url(), isMaster, isManifest, isFallback, isForeign, isExplicit, resource->estimatedSizeInStorage()));
    }
}

bool DocumentLoader::shouldLoadResourceFromApplicationCache(const ResourceRequest& request, ApplicationCacheResource*& resource)
{
    ApplicationCache* cache = applicationCache();
    if (!cache || !cache->isComplete())
        return false;

    // If the resource is not a HTTP/HTTPS GET, then abort
    if (!ApplicationCache::requestIsHTTPOrHTTPSGet(request))
        return false;

    // If the resource's URL is an master entry, the manifest, an explicit entry, or a fallback entry
    // in the application cache, then get the resource from the cache (instead of fetching it).
    resource = cache->resourceForURL(request.url());

    // Resources that match fallback namespaces or online whitelist entries are fetched from the network,
    // unless they are also cached.
    if (!resource && (cache->urlMatchesFallbackNamespace(request.url()) || cache->isURLInOnlineWhitelist(request.url())))
        return false;

    // Resources that are not present in the manifest will always fail to load (at least, after the
    // cache has been primed the first time), making the testing of offline applications simpler.
    return true;
}