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// Copyright (c) 2009 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 WEBKIT_APPCACHE_APPCACHE_INTERFACES_H_
#define WEBKIT_APPCACHE_APPCACHE_INTERFACES_H_
#include <string>
#include <vector>
#include "base/basictypes.h"
class GURL;
class URLRequest;
namespace appcache {
// Defines constants, types, and abstract classes used in the main
// process and in child processes.
extern const char kManifestMimeType[];
static const int kNoHostId = 0;
static const int64 kNoCacheId = 0;
static const int64 kNoResponseId = 0;
static const int64 kUnknownCacheId = -1;
enum Status {
UNCACHED,
IDLE,
CHECKING,
DOWNLOADING,
UPDATE_READY,
OBSOLETE
};
enum EventID {
CHECKING_EVENT,
ERROR_EVENT,
NO_UPDATE_EVENT,
DOWNLOADING_EVENT,
PROGRESS_EVENT,
UPDATE_READY_EVENT,
CACHED_EVENT,
OBSOLETE_EVENT
};
// Interface used by backend to talk to frontend.
class AppCacheFrontend {
public:
virtual void OnCacheSelected(int host_id, int64 cache_id ,
Status status) = 0;
virtual void OnStatusChanged(const std::vector<int>& host_ids,
Status status) = 0;
virtual void OnEventRaised(const std::vector<int>& host_ids,
EventID event_id) = 0;
virtual ~AppCacheFrontend() {}
};
// Interface used by frontend to talk to backend.
class AppCacheBackend {
public:
virtual void RegisterHost(int host_id) = 0;
virtual void UnregisterHost(int host_id) = 0;
virtual void SelectCache(int host_id,
const GURL& document_url,
const int64 cache_document_was_loaded_from,
const GURL& manifest_url) = 0;
virtual void MarkAsForeignEntry(int host_id, const GURL& document_url,
int64 cache_document_was_loaded_from) = 0;
virtual Status GetStatus(int host_id) = 0;
virtual bool StartUpdate(int host_id) = 0;
virtual bool SwapCache(int host_id) = 0;
virtual ~AppCacheBackend() {}
};
// Useful string constants.
// Note: These are also defined elsewhere in the chrome code base in
// url_contants.h .cc, however the appcache library doesn't not have
// any dependencies on the chrome library, so we can't use them in here.
extern const char kHttpScheme[];
extern const char kHttpsScheme[];
extern const char kHttpGETMethod[];
extern const char kHttpHEADMethod[];
bool IsSchemeSupported(const GURL& url);
bool IsMethodSupported(const std::string& method);
bool IsSchemeAndMethodSupported(const URLRequest* request);
} // namespace
#endif // WEBKIT_APPCACHE_APPCACHE_INTERFACES_H_
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