blob: 0c479fef5ec731e51fcecdac11c9a118190541cc [file] [log] [blame]
// Copyright 2016 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.
#include <stdint.h>
#include <memory>
#include <vector>
#include "base/callback.h"
#include "content/public/renderer/render_frame_observer.h"
#include "content/public/renderer/render_thread_observer.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "url/gurl.h"
namespace content {
class MultiResolutionImageResourceFetcher;
class RenderFrame;
class ImageDownloaderBase : public RenderFrameObserver,
public RenderThreadObserver {
explicit ImageDownloaderBase(RenderFrame* render_frame);
~ImageDownloaderBase() override;
using DownloadCallback =
base::OnceCallback<void(int32_t, const std::vector<SkBitmap>&)>;
// Request to asynchronously download an image. When done, |callback| will be
// called.
void DownloadImage(const GURL& url,
bool is_favicon,
bool bypass_cache,
DownloadCallback callback);
// RenderFrameObserver implementation.
void OnDestruct() override;
// Requests to fetch an image. When done, the image downloader is notified by
// way of DidFetchImage. If the image is a favicon, cookies will not be sent
// nor accepted during download. If the image has multiple frames, all frames
// are returned.
void FetchImage(const GURL& image_url,
bool is_favicon,
bool bypass_cache,
DownloadCallback callback);
// This callback is triggered when FetchImage completes, either
// successfully or with a failure. See FetchImage for more
// details.
void DidFetchImage(DownloadCallback callback,
MultiResolutionImageResourceFetcher* fetcher,
const std::vector<SkBitmap>& images);
typedef std::vector<std::unique_ptr<MultiResolutionImageResourceFetcher>>
// ImageResourceFetchers schedule via FetchImage.
ImageResourceFetcherList image_fetchers_;
} // namespace content