void ApplicationCacheGroup::didFinishLoading(ResourceHandle* handle)
{
if (handle == m_manifestHandle) {
didFinishLoadingManifest();
return;
}
ASSERT(m_currentHandle == handle);
ASSERT(m_pendingEntries.contains(handle->request().url()));
m_pendingEntries.remove(handle->request().url());
ASSERT(m_cacheBeingUpdated);
m_cacheBeingUpdated->addResource(m_currentResource.release());
m_currentHandle = 0;
// Load the next file.
if (!m_pendingEntries.isEmpty()) {
startLoadingEntry();
return;
}
checkIfLoadIsComplete();
}
void ApplicationCacheGroup::finishedLoadingMainResource(DocumentLoader* loader)
{
const KURL& url = loader->originalURL();
if (ApplicationCache* cache = loader->applicationCache()) {
RefPtr<ApplicationCacheResource> resource = ApplicationCacheResource::create(url, loader->response(), ApplicationCacheResource::Implicit, loader->mainResourceData());
cache->addResource(resource.release());
if (!m_cacheBeingUpdated)
return;
}
ASSERT(m_pendingEntries.contains(url));
EntryMap::iterator it = m_pendingEntries.find(url);
ASSERT(it->second & ApplicationCacheResource::Implicit);
RefPtr<ApplicationCacheResource> resource = ApplicationCacheResource::create(url, loader->response(), it->second, loader->mainResourceData());
ASSERT(m_cacheBeingUpdated);
m_cacheBeingUpdated->addResource(resource.release());
m_pendingEntries.remove(it);
checkIfLoadIsComplete();
}
void ApplicationCacheGroup::didReachMaxAppCacheSize()
{
ASSERT(m_frame);
ASSERT(m_cacheBeingUpdated);
m_frame->page()->chrome().client().reachedMaxAppCacheSize(cacheStorage().spaceNeeded(m_cacheBeingUpdated->estimatedSizeInStorage()));
m_calledReachedMaxAppCacheSize = true;
checkIfLoadIsComplete();
}
void ApplicationCacheGroup::finishedLoadingMainResource(DocumentLoader* loader)
{
ASSERT(m_pendingMasterResourceLoaders.contains(loader));
ASSERT(m_completionType == None || m_pendingEntries.isEmpty());
URL url = loader->url();
if (url.hasFragmentIdentifier())
url.removeFragmentIdentifier();
switch (m_completionType) {
case None:
// The main resource finished loading before the manifest was ready. It will be handled via dispatchMainResources() later.
return;
case NoUpdate:
ASSERT(!m_cacheBeingUpdated);
associateDocumentLoaderWithCache(loader, m_newestCache.get());
if (ApplicationCacheResource* resource = m_newestCache->resourceForURL(url)) {
if (!(resource->type() & ApplicationCacheResource::Master)) {
resource->addType(ApplicationCacheResource::Master);
ASSERT(!resource->storageID());
}
} else {
RefPtr<ResourceBuffer> buffer = loader->mainResourceData();
m_newestCache->addResource(ApplicationCacheResource::create(url, loader->response(), ApplicationCacheResource::Master, buffer ? buffer->sharedBuffer() : 0));
}
break;
case Failure:
// Cache update has been a failure, so there is no reason to keep the document associated with the incomplete cache
// (its main resource was not cached yet, so it is likely that the application changed significantly server-side).
ASSERT(!m_cacheBeingUpdated); // Already cleared out by stopLoading().
loader->applicationCacheHost()->setApplicationCache(0); // Will unset candidate, too.
m_associatedDocumentLoaders.remove(loader);
postListenerTask(ApplicationCacheHost::ERROR_EVENT, loader);
break;
case Completed:
ASSERT(m_associatedDocumentLoaders.contains(loader));
if (ApplicationCacheResource* resource = m_cacheBeingUpdated->resourceForURL(url)) {
if (!(resource->type() & ApplicationCacheResource::Master)) {
resource->addType(ApplicationCacheResource::Master);
ASSERT(!resource->storageID());
}
} else {
RefPtr<ResourceBuffer> buffer = loader->mainResourceData();
m_cacheBeingUpdated->addResource(ApplicationCacheResource::create(url, loader->response(), ApplicationCacheResource::Master, buffer ? buffer->sharedBuffer() : 0));
}
// The "cached" event will be posted to all associated documents once update is complete.
break;
}
ASSERT(m_downloadingPendingMasterResourceLoadersCount > 0);
m_downloadingPendingMasterResourceLoadersCount--;
checkIfLoadIsComplete();
}
void ApplicationCacheGroup::failedLoadingMainResource(DocumentLoader* loader)
{
ASSERT(m_pendingMasterResourceLoaders.contains(loader));
ASSERT(m_completionType == None || m_pendingEntries.isEmpty());
switch (m_completionType) {
case None:
// The main resource finished loading before the manifest was ready. It will be handled via dispatchMainResources() later.
return;
case NoUpdate:
ASSERT(!m_cacheBeingUpdated);
// The manifest didn't change, and we have a relevant cache - but the main resource download failed mid-way, so it cannot be stored to the cache,
// and the loader does not get associated to it. If there are other main resources being downloaded for this cache group, they may still succeed.
postListenerTask(ApplicationCacheHost::ERROR_EVENT, loader);
break;
case Failure:
// Cache update failed, too.
ASSERT(!m_cacheBeingUpdated); // Already cleared out by stopLoading().
ASSERT(!loader->applicationCacheHost()->applicationCache() || loader->applicationCacheHost()->applicationCache() == m_cacheBeingUpdated);
loader->applicationCacheHost()->setApplicationCache(0); // Will unset candidate, too.
m_associatedDocumentLoaders.remove(loader);
postListenerTask(ApplicationCacheHost::ERROR_EVENT, loader);
break;
case Completed:
// The cache manifest didn't list this main resource, and all cache entries were already updated successfully - but the main resource failed to load,
// so it cannot be stored to the cache. If there are other main resources being downloaded for this cache group, they may still succeed.
ASSERT(m_associatedDocumentLoaders.contains(loader));
ASSERT(loader->applicationCacheHost()->applicationCache() == m_cacheBeingUpdated);
ASSERT(!loader->applicationCacheHost()->candidateApplicationCacheGroup());
m_associatedDocumentLoaders.remove(loader);
loader->applicationCacheHost()->setApplicationCache(0);
postListenerTask(ApplicationCacheHost::ERROR_EVENT, loader);
break;
}
ASSERT(m_downloadingPendingMasterResourceLoadersCount > 0);
m_downloadingPendingMasterResourceLoadersCount--;
checkIfLoadIsComplete();
}
void ApplicationCacheGroup::deliverDelayedMainResources()
{
// Need to copy loaders, because the cache group may be destroyed at the end of iteration.
Vector<DocumentLoader*> loaders;
copyToVector(m_pendingMasterResourceLoaders, loaders);
size_t count = loaders.size();
for (size_t i = 0; i != count; ++i) {
DocumentLoader* loader = loaders[i];
if (loader->isLoadingMainResource())
continue;
const ResourceError& error = loader->mainDocumentError();
if (error.isNull())
finishedLoadingMainResource(loader);
else
failedLoadingMainResource(loader);
}
if (!count)
checkIfLoadIsComplete();
}
void ApplicationCacheGroup::startLoadingEntry()
{
ASSERT(m_cacheBeingUpdated);
if (m_pendingEntries.isEmpty()) {
checkIfLoadIsComplete();
return;
}
EntryMap::const_iterator it = m_pendingEntries.begin();
// If this is an initial cache attempt, we do not want to fetch any implicit entries,
// since those are fed to us by the normal loader machinery.
if (!m_newestCache) {
// Get the first URL in the entry table that is not implicit
EntryMap::const_iterator end = m_pendingEntries.end();
while (it->second & ApplicationCacheResource::Implicit) {
++it;
if (it == end)
return;
}
}
callListenersOnAssociatedDocuments(&DOMApplicationCache::callProgressListener);
// FIXME: If this is an upgrade attempt, the newest cache should be used as an HTTP cache.
ASSERT(!m_currentHandle);
ResourceRequest request(it->first);
m_frame->loader()->applyUserAgent(request);
m_currentHandle = ResourceHandle::create(request, this, m_frame, false, true, false);
}