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// Copyright (c) 2011 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 "content/browser/appcache/chrome_appcache_service.h"
#include "base/file_path.h"
#include "base/file_util.h"
#include "content/browser/content_browser_client.h"
#include "content/common/notification_service.h"
#include "net/base/net_errors.h"
#include "webkit/appcache/appcache_thread.h"
#include "webkit/quota/quota_manager.h"
static bool has_initialized_thread_ids;
// ----------------------------------------------------------------------------
ChromeAppCacheService::ChromeAppCacheService(
quota::QuotaManagerProxy* quota_manager_proxy)
: AppCacheService(quota_manager_proxy),
resource_context_(NULL) {
}
void ChromeAppCacheService::InitializeOnIOThread(
const FilePath& cache_path,
const content::ResourceContext* resource_context,
scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
if (!has_initialized_thread_ids) {
has_initialized_thread_ids = true;
appcache::AppCacheThread::Init(BrowserThread::DB, BrowserThread::IO);
}
cache_path_ = cache_path;
resource_context_ = resource_context;
registrar_.Add(
this, content::NOTIFICATION_PURGE_MEMORY,
NotificationService::AllSources());
// Init our base class.
Initialize(cache_path_,
BrowserThread::GetMessageLoopProxyForThread(BrowserThread::CACHE));
set_appcache_policy(this);
set_special_storage_policy(special_storage_policy);
}
ChromeAppCacheService::~ChromeAppCacheService() {
}
bool ChromeAppCacheService::CanLoadAppCache(const GURL& manifest_url) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
// We don't prompt for read access.
return content::GetContentClient()->browser()->AllowAppCache(
manifest_url, *resource_context_);
}
int ChromeAppCacheService::CanCreateAppCache(
const GURL& manifest_url, net::CompletionCallback* callback) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
return content::GetContentClient()->browser()->AllowAppCache(
manifest_url, *resource_context_) ? net::OK : net::ERR_ACCESS_DENIED;
}
void ChromeAppCacheService::Observe(int type,
const NotificationSource& source,
const NotificationDetails& details) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
DCHECK(type == content::NOTIFICATION_PURGE_MEMORY);
PurgeMemory();
}
// ----------------------------------------------------------------------------
static BrowserThread::ID ToBrowserThreadID(int id) {
DCHECK(has_initialized_thread_ids);
DCHECK(id == BrowserThread::DB || id == BrowserThread::IO);
return static_cast<BrowserThread::ID>(id);
}
namespace appcache {
// An impl of AppCacheThread we need to provide to the appcache lib.
bool AppCacheThread::PostTask(
int id,
const tracked_objects::Location& from_here,
Task* task) {
return BrowserThread::PostTask(ToBrowserThreadID(id), from_here, task);
}
bool AppCacheThread::CurrentlyOn(int id) {
return BrowserThread::CurrentlyOn(ToBrowserThreadID(id));
}
} // namespace appcache
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