blob: ae536da4b9c84affcf1bfad0246facd16fcaed9a [file] [log] [blame]
// Copyright (c) 2012 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.
#ifndef CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_APPCACHE_HELPER_H_
#define CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_APPCACHE_HELPER_H_
#include <stddef.h>
#include <list>
#include <set>
#include <vector>
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "content/public/browser/appcache_service.h"
#include "url/gurl.h"
#include "url/origin.h"
namespace content {
struct StorageUsageInfo;
}
// This class fetches appcache information on behalf of a caller
// on the UI thread.
class BrowsingDataAppCacheHelper
: public base::RefCountedThreadSafe<BrowsingDataAppCacheHelper> {
public:
using FetchCallback =
base::OnceCallback<void(const std::list<content::StorageUsageInfo>&)>;
explicit BrowsingDataAppCacheHelper(
content::AppCacheService* appcache_service);
virtual void StartFetching(FetchCallback completion_callback);
virtual void DeleteAppCaches(const url::Origin& origin_url);
protected:
friend class base::RefCountedThreadSafe<BrowsingDataAppCacheHelper>;
virtual ~BrowsingDataAppCacheHelper();
private:
void StartFetchingOnLoaderThread(FetchCallback completion_callback);
void DeleteAppCachesOnLoaderThread(const url::Origin& origin);
// Owned by the profile.
content::AppCacheService* appcache_service_;
DISALLOW_COPY_AND_ASSIGN(BrowsingDataAppCacheHelper);
};
// This class is a thin wrapper around BrowsingDataAppCacheHelper that does not
// fetch its information from the appcache service, but gets them passed when
// called on access.
class CannedBrowsingDataAppCacheHelper : public BrowsingDataAppCacheHelper {
public:
explicit CannedBrowsingDataAppCacheHelper(
content::AppCacheService* appcache_service);
// Add an appcache to the set of canned caches that is returned by this
// helper.
void Add(const url::Origin& origin);
// Clears the list of canned caches.
void Reset();
// True if no appcaches are currently stored.
bool empty() const;
// Returns the number of app cache resources.
size_t GetCount() const;
// Returns the set or origins with app caches.
const std::set<url::Origin>& GetOrigins() const;
// BrowsingDataAppCacheHelper methods.
void StartFetching(FetchCallback callback) override;
void DeleteAppCaches(const url::Origin& origin) override;
private:
~CannedBrowsingDataAppCacheHelper() override;
std::set<url::Origin> pending_origins_;
DISALLOW_COPY_AND_ASSIGN(CannedBrowsingDataAppCacheHelper);
};
#endif // CHROME_BROWSER_BROWSING_DATA_BROWSING_DATA_APPCACHE_HELPER_H_