C++ ApplicationCacheResource::type方法代码示例

void ApplicationCacheHost::fillResourceList(ResourceInfoList* resources)
{
    ApplicationCache* cache = applicationCache();
    if (!cache || !cache->isComplete())
        return;

    for (const auto& urlAndResource : cache->resources()) {
        ApplicationCacheResource* resource = urlAndResource.value.get();

        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 ApplicationCacheStorage::storeCopyOfCache(const String& cacheDirectory, ApplicationCacheHost* cacheHost)
{
    ApplicationCache* cache = cacheHost->applicationCache();
    if (!cache)
        return true;

    // Create a new cache.
    RefPtr<ApplicationCache> cacheCopy = ApplicationCache::create();

    cacheCopy->setOnlineWhitelist(cache->onlineWhitelist());
    cacheCopy->setFallbackURLs(cache->fallbackURLs());

    // Traverse the cache and add copies of all resources.
    ApplicationCache::ResourceMap::const_iterator end = cache->end();
    for (ApplicationCache::ResourceMap::const_iterator it = cache->begin(); it != end; ++it) {
        ApplicationCacheResource* resource = it->second.get();
        
        RefPtr<ApplicationCacheResource> resourceCopy = ApplicationCacheResource::create(resource->url(), resource->response(), resource->type(), resource->data());
        
        cacheCopy->addResource(resourceCopy.release());
    }
    
    // Now create a new cache group.
    OwnPtr<ApplicationCacheGroup> groupCopy(new ApplicationCacheGroup(cache->group()->manifestURL(), true));
    
    groupCopy->setNewestCache(cacheCopy);
    
    ApplicationCacheStorage copyStorage;
    copyStorage.setCacheDirectory(cacheDirectory);
    
    // Empty the cache in case something was there before.
    copyStorage.empty();
    
    return copyStorage.storeNewestCache(groupCopy.get());
}

ApplicationCacheGroup* ApplicationCacheStorage::cacheGroupForURL(const KURL& url)
{
    ASSERT(!url.hasFragmentIdentifier());
    
    loadManifestHostHashes();
    
    // Hash the host name and see if there's a manifest with the same host.
    if (!m_cacheHostSet.contains(urlHostHash(url)))
        return 0;

    // Check if a cache already exists in memory.
    CacheGroupMap::const_iterator end = m_cachesInMemory.end();
    for (CacheGroupMap::const_iterator it = m_cachesInMemory.begin(); it != end; ++it) {
        ApplicationCacheGroup* group = it->second;

        ASSERT(!group->isObsolete());

        if (!protocolHostAndPortAreEqual(url, group->manifestURL()))
            continue;
        
        if (ApplicationCache* cache = group->newestCache()) {
            ApplicationCacheResource* resource = cache->resourceForURL(url);
            if (!resource)
                continue;
            if (resource->type() & ApplicationCacheResource::Foreign)
                continue;
            return group;
        }
    }
    
    if (!m_database.isOpen())
        return 0;
        
    // Check the database. Look for all cache groups with a newest cache.
    SQLiteStatement statement(m_database, "SELECT id, manifestURL, newestCache FROM CacheGroups WHERE newestCache IS NOT NULL");
    if (statement.prepare() != SQLResultOk)
        return 0;
    
    int result;
    while ((result = statement.step()) == SQLResultRow) {
        KURL manifestURL = KURL(ParsedURLString, statement.getColumnText(1));

        if (m_cachesInMemory.contains(manifestURL))
            continue;

        if (!protocolHostAndPortAreEqual(url, manifestURL))
            continue;

        // We found a cache group that matches. Now check if the newest cache has a resource with
        // a matching URL.
        unsigned newestCacheID = static_cast<unsigned>(statement.getColumnInt64(2));
        RefPtr<ApplicationCache> cache = loadCache(newestCacheID);
        if (!cache)
            continue;

        ApplicationCacheResource* resource = cache->resourceForURL(url);
        if (!resource)
            continue;
        if (resource->type() & ApplicationCacheResource::Foreign)
            continue;

        ApplicationCacheGroup* group = new ApplicationCacheGroup(manifestURL);
        
        group->setStorageID(static_cast<unsigned>(statement.getColumnInt64(0)));
        group->setNewestCache(cache.release());
        
        m_cachesInMemory.set(group->manifestURL(), group);
        
        return group;
    }

    if (result != SQLResultDone)
        LOG_ERROR("Could not load cache group, error \"%s\"", m_database.lastErrorMsg());
    
    return 0;
}