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// Copyright 2016 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 CONTENT_BROWSER_APPCACHE_APPCACHE_NAVIGATION_HANDLE_CORE_H_
#define CONTENT_BROWSER_APPCACHE_APPCACHE_NAVIGATION_HANDLE_CORE_H_
#include <memory>
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "content/common/appcache_interfaces.h"
namespace content {
class AppCacheNavigationHandle;
class AppCacheHost;
class AppCacheServiceImpl;
class ChromeAppCacheService;
// PlzNavigate
// This class is used to manage the lifetime of AppCacheHosts
// created during navigations. This class is created on the UI thread, but
// should only be accessed from the IO thread afterwards. It is the IO thread
// pendant of AppCacheNavigationHandle. See the
// AppCacheNavigationHandle header for more details about the lifetime of
// both classes.
class AppCacheNavigationHandleCore : public AppCacheFrontend {
public:
AppCacheNavigationHandleCore(
ChromeAppCacheService* appcache_service,
int appcache_host_id);
~AppCacheNavigationHandleCore() override;
// Returns the raw AppCacheHost pointer. Ownership remains with this class.
AppCacheHost* host() { return precreated_host_.get(); }
// Initializes this instance. Should be called on the IO thread.
void Initialize();
// Returns the precreated AppCacheHost pointer. Ownership of the host is
// released here.
static std::unique_ptr<AppCacheHost> GetPrecreatedHost(int host_id);
AppCacheServiceImpl* GetAppCacheService();
protected:
// AppCacheFrontend methods
// We don't expect calls on the AppCacheFrontend methods while the
// AppCacheHost is not registered with the AppCacheBackend.
void OnCacheSelected(int host_id, const AppCacheInfo& info) override;
void OnStatusChanged(const std::vector<int>& host_ids,
AppCacheStatus status) override;
void OnEventRaised(const std::vector<int>& host_ids,
AppCacheEventID event_id) override;
void OnProgressEventRaised(const std::vector<int>& host_ids,
const GURL& url,
int num_total,
int num_complete) override;
void OnErrorEventRaised(const std::vector<int>& host_ids,
const AppCacheErrorDetails& details) override;
void OnLogMessage(int host_id,
AppCacheLogLevel log_level,
const std::string& message) override;
void OnContentBlocked(int host_id, const GURL& manifest_url) override;
void OnSetSubresourceFactory(
int host_id,
network::mojom::URLLoaderFactoryPtr url_loader_factory) override;
private:
std::unique_ptr<AppCacheHost> precreated_host_;
scoped_refptr<ChromeAppCacheService> appcache_service_;
int appcache_host_id_;
DISALLOW_COPY_AND_ASSIGN(AppCacheNavigationHandleCore);
};
} // namespace content
#endif // CONTENT_BROWSER_APPCACHE_APPCACHE_NAVIGATION_HANDLE_CORE_H_