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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// URLs of the form "feed://foo" are implemented by handing an "http://"
// URL up to the resource fetching code, then generating a preview at this
// layer and handing that back to WebKit.
#ifndef WEBKIT_GLUE_FEED_PREVIEW_H__
#define WEBKIT_GLUE_FEED_PREVIEW_H__
#include <string>
#pragma warning(push, 0)
#include "ResourceHandleClient.h"
#pragma warning(pop)
namespace WebCore {
// FeedClientProxy serves as a ResourceHandleClient that forwards calls to
// a "real" ResourceHandleClient, buffering the response so it can provide
// a feed preview if the underlying resource request succeeds.
class FeedClientProxy : public ResourceHandleClient {
public:
FeedClientProxy(ResourceHandleClient* client);
virtual ~FeedClientProxy() { }
// ResourceHandleClient overrides.
virtual void didReceiveResponse(ResourceHandle*, const ResourceResponse&);
virtual void didReceiveData(ResourceHandle*, const char*, int, int);
virtual void didFinishLoading(ResourceHandle*);
virtual void didFail(ResourceHandle*, const ResourceError&);
private:
// The "real" ResourceHandleClient that we're forwarding responses to.
ResourceHandleClient* client_;
// Whether we should insert a feed preview -- only if the request came
// back ok.
bool do_feed_preview_;
// The response data, which we can parse for the feed preview.
std::string data_;
// The value of the mystery lengthReceived parameter. We accept this via
// didReceiveData() and forward it along unmodified.
// TODO(evanm): do the right thing here, once we know what that is.
// (See TODOs in resource_handle_win.cc.)
int length_received_;
};
} // namespace WebCore
#endif // WEBKIT_GLUE_FEED_PREVIEW_H__
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