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// Copyright (c) 2013 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_BROWSER_APPCACHE_APPCACHE_EXECUTABLE_HANDLER_H_
#define WEBKIT_BROWSER_APPCACHE_APPCACHE_EXECUTABLE_HANDLER_H_
#include "base/callback.h"
#include "base/memory/scoped_ptr.h"
#include "url/gurl.h"
#include "webkit/browser/webkit_storage_browser_export.h"
namespace net {
class IOBuffer;
class URLRequest;
}
namespace appcache {
// An interface that must be provided by the embedder to support this feature.
class WEBKIT_STORAGE_BROWSER_EXPORT AppCacheExecutableHandler {
public:
// A handler can respond in one of 4 ways, if each of the GURL fields
// in 'Response' are empty and use_network is false, an error response is
// synthesized.
struct Response {
GURL cached_resource_url;
GURL redirect_url;
bool use_network;
// TODO: blob + headers would be a good one to provide as well, as it would
// make templating possible.
};
typedef base::Callback<void(const Response&)> ResponseCallback;
// Deletion of the handler cancels all pending callbacks.
virtual ~AppCacheExecutableHandler() {}
virtual void HandleRequest(net::URLRequest* req,
ResponseCallback callback) = 0;
};
// A factory to produce instances.
class WEBKIT_STORAGE_BROWSER_EXPORT AppCacheExecutableHandlerFactory {
public:
virtual scoped_ptr<AppCacheExecutableHandler> CreateHandler(
const GURL& handler_url, net::IOBuffer* handler_source) = 0;
protected:
virtual ~AppCacheExecutableHandlerFactory() {}
};
} // namespace appcache
#endif // WEBKIT_BROWSER_APPCACHE_APPCACHE_EXECUTABLE_HANDLER_H_
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