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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/browsing_data_appcache_helper.h"
#include "chrome/browser/chrome_thread.h"
#include "chrome/browser/net/chrome_url_request_context.h"
#include "chrome/browser/profile.h"
#include "chrome/common/url_constants.h"
#include "webkit/appcache/appcache_database.h"
#include "webkit/appcache/appcache_storage.h"
using appcache::AppCacheDatabase;
BrowsingDataAppCacheHelper::BrowsingDataAppCacheHelper(Profile* profile)
: request_context_getter_(profile->GetRequestContext()),
is_fetching_(false) {
DCHECK(request_context_getter_.get());
}
void BrowsingDataAppCacheHelper::StartFetching(Callback0::Type* callback) {
if (ChromeThread::CurrentlyOn(ChromeThread::UI)) {
DCHECK(!is_fetching_);
DCHECK(callback);
is_fetching_ = true;
info_collection_ = new appcache::AppCacheInfoCollection;
completion_callback_.reset(callback);
ChromeThread::PostTask(ChromeThread::IO, FROM_HERE, NewRunnableMethod(
this, &BrowsingDataAppCacheHelper::StartFetching, callback));
return;
}
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
appcache_info_callback_ =
new net::CancelableCompletionCallback<BrowsingDataAppCacheHelper>(
this, &BrowsingDataAppCacheHelper::OnFetchComplete);
GetAppCacheService()->GetAllAppCacheInfo(info_collection_,
appcache_info_callback_);
}
void BrowsingDataAppCacheHelper::CancelNotification() {
if (ChromeThread::CurrentlyOn(ChromeThread::UI)) {
completion_callback_.reset();
ChromeThread::PostTask(ChromeThread::IO, FROM_HERE, NewRunnableMethod(
this, &BrowsingDataAppCacheHelper::CancelNotification));
return;
}
if (appcache_info_callback_)
appcache_info_callback_.release()->Cancel();
}
void BrowsingDataAppCacheHelper::DeleteAppCacheGroup(
const GURL& manifest_url) {
if (ChromeThread::CurrentlyOn(ChromeThread::UI)) {
ChromeThread::PostTask(ChromeThread::IO, FROM_HERE, NewRunnableMethod(
this, &BrowsingDataAppCacheHelper::DeleteAppCacheGroup,
manifest_url));
return;
}
GetAppCacheService()->DeleteAppCacheGroup(manifest_url, NULL);
}
void BrowsingDataAppCacheHelper::OnFetchComplete(int rv) {
if (ChromeThread::CurrentlyOn(ChromeThread::IO)) {
// Filter out appache info entries for extensions. Extension state is not
// considered browsing data.
typedef std::map<GURL, appcache::AppCacheInfoVector> InfoByOrigin;
InfoByOrigin& origin_map = info_collection_->infos_by_origin;
for (InfoByOrigin::iterator origin = origin_map.begin();
origin != origin_map.end();) {
InfoByOrigin::iterator current = origin;
++origin;
if (current->first.SchemeIs(chrome::kExtensionScheme))
origin_map.erase(current);
}
appcache_info_callback_ = NULL;
ChromeThread::PostTask(ChromeThread::UI, FROM_HERE, NewRunnableMethod(
this, &BrowsingDataAppCacheHelper::OnFetchComplete, rv));
return;
}
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
DCHECK(is_fetching_);
is_fetching_ = false;
if (completion_callback_ != NULL) {
completion_callback_->Run();
completion_callback_.reset();
}
}
ChromeAppCacheService* BrowsingDataAppCacheHelper::GetAppCacheService() {
DCHECK(ChromeThread::CurrentlyOn(ChromeThread::IO));
ChromeURLRequestContext* request_context =
reinterpret_cast<ChromeURLRequestContext*>(
request_context_getter_->GetURLRequestContext());
return request_context ? request_context->appcache_service()
: NULL;
}
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