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// Copyright (c) 2012 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_MULTI_RESOLUTION_IMAGE_RESOURCE_FETCHER_H_
#define CONTENT_RENDERER_FETCHERS_MULTI_RESOLUTION_IMAGE_RESOURCE_FETCHER_H_
#include <string>
#include <vector>
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "third_party/WebKit/public/platform/WebURLRequest.h"
#include "url/gurl.h"
class SkBitmap;
namespace blink {
class WebFrame;
class WebURLResponse;
}
namespace content {
class ResourceFetcher;
// A resource fetcher that returns all (differently-sized) frames in
// an image. Useful for favicons.
class MultiResolutionImageResourceFetcher {
public:
typedef base::Callback<void(MultiResolutionImageResourceFetcher*,
const std::vector<SkBitmap>&)> Callback;
MultiResolutionImageResourceFetcher(
const GURL& image_url,
blink::WebFrame* frame,
int id,
blink::WebURLRequest::RequestContext request_context,
blink::WebURLRequest::CachePolicy cache_policy,
const Callback& callback);
virtual ~MultiResolutionImageResourceFetcher();
// URL of the image we're downloading.
const GURL& image_url() const { return image_url_; }
// Unique identifier for the request.
int id() const { return id_; }
// HTTP status code upon fetch completion.
int http_status_code() const { return http_status_code_; }
private:
// ResourceFetcher::Callback. Decodes the image and invokes callback_.
void OnURLFetchComplete(const blink::WebURLResponse& response,
const std::string& data);
Callback callback_;
// Unique identifier for the request.
const int id_;
// HTTP status code upon fetch completion.
int http_status_code_;
// URL of the image.
const GURL image_url_;
// Does the actual download.
scoped_ptr<ResourceFetcher> fetcher_;
DISALLOW_COPY_AND_ASSIGN(MultiResolutionImageResourceFetcher);
};
} // namespace content
#endif // CONTENT_RENDERER_FETCHERS_MULTI_RESOLUTION_IMAGE_RESOURCE_FETCHER_H_
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