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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_WEBUI_DOWNLOAD_INTERNALS_DOWNLOAD_INTERNALS_UI_MESSAGE_HANDLER_H_
#define CHROME_BROWSER_UI_WEBUI_DOWNLOAD_INTERNALS_DOWNLOAD_INTERNALS_UI_MESSAGE_HANDLER_H_
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "components/download/public/background_service/logger.h"
#include "content/public/browser/web_ui_message_handler.h"
namespace download {
class BackgroundDownloadService;
} // namespace download
namespace download_internals {
// Class acting as a controller of the chrome://download-internals WebUI.
class DownloadInternalsUIMessageHandler : public content::WebUIMessageHandler,
public download::Logger::Observer {
public:
DownloadInternalsUIMessageHandler();
DownloadInternalsUIMessageHandler(const DownloadInternalsUIMessageHandler&) =
delete;
DownloadInternalsUIMessageHandler& operator=(
const DownloadInternalsUIMessageHandler&) = delete;
~DownloadInternalsUIMessageHandler() override;
// content::WebUIMessageHandler implementation.
void RegisterMessages() override;
// download::Logger::Observer implementation.
void OnServiceStatusChanged(const base::Value::Dict& service_status) override;
void OnServiceDownloadsAvailable(
const base::Value::List& service_downloads) override;
void OnServiceDownloadChanged(
const base::Value::Dict& service_download) override;
void OnServiceDownloadFailed(
const base::Value::Dict& service_download) override;
void OnServiceRequestMade(const base::Value::Dict& service_request) override;
private:
// Get the current DownloadService and sub component statuses.
void HandleGetServiceStatus(const base::Value::List& args);
void HandleGetServiceDownloads(const base::Value::List& args);
// Starts a background download.
void HandleStartDownload(const base::Value::List& args);
raw_ptr<download::BackgroundDownloadService> download_service_;
base::WeakPtrFactory<DownloadInternalsUIMessageHandler> weak_ptr_factory_{
this};
};
} // namespace download_internals
#endif // CHROME_BROWSER_UI_WEBUI_DOWNLOAD_INTERNALS_DOWNLOAD_INTERNALS_UI_MESSAGE_HANDLER_H_
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