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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.
#ifndef CONTENT_RENDERER_FETCHERS_ALT_ERROR_PAGE_RESOURCE_FETCHER_H_
#define CONTENT_RENDERER_FETCHERS_ALT_ERROR_PAGE_RESOURCE_FETCHER_H_
#include "base/callback.h"
#include "base/memory/scoped_ptr.h"
#include "googleurl/src/gurl.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebURLError.h"
#include "third_party/WebKit/Source/Platform/chromium/public/WebURLRequest.h"
namespace WebKit {
class WebFrame;
class WebURLResponse;
}
namespace content {
class ResourceFetcherWithTimeout;
// Used for downloading alternate dns error pages. Once downloading is done
// (or fails), the webview delegate is notified.
class AltErrorPageResourceFetcher {
public:
// This will be called when the alternative error page has been fetched,
// successfully or not. If there is a failure, the third parameter (the
// data) will be empty.
typedef base::Callback<void(WebKit::WebFrame*,
const WebKit::WebURLRequest&,
const WebKit::WebURLError&,
const std::string&)> Callback;
AltErrorPageResourceFetcher(
const GURL& url,
WebKit::WebFrame* frame,
const WebKit::WebURLRequest& original_request,
const WebKit::WebURLError& original_error,
const Callback& callback);
~AltErrorPageResourceFetcher();
// Stop any pending loads.
void Cancel();
private:
void OnURLFetchComplete(const WebKit::WebURLResponse& response,
const std::string& data);
// Does the actual fetching.
scoped_ptr<ResourceFetcherWithTimeout> fetcher_;
WebKit::WebFrame* frame_;
Callback callback_;
// The original request. If loading the alternate error page fails, it's
// needed to generate the error page.
WebKit::WebURLRequest original_request_;
// The error associated with this load. If there's an error talking with the
// alt error page server, we need this to complete the original load.
WebKit::WebURLError original_error_;
DISALLOW_COPY_AND_ASSIGN(AltErrorPageResourceFetcher);
};
} // namespace content
#endif // CONTENT_RENDERER_FETCHERS_ALT_ERROR_PAGE_RESOURCE_FETCHER_H_
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