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// Copyright 2021 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_WHATS_NEW_WHATS_NEW_UI_H_
#define CHROME_BROWSER_UI_WEBUI_WHATS_NEW_WHATS_NEW_UI_H_
#include "base/memory/raw_ptr.h"
#include "chrome/browser/ui/webui/whats_new/whats_new.mojom.h"
#include "components/prefs/pref_registry_simple.h"
#include "content/public/browser/web_contents_observer.h"
#include "content/public/browser/webui_config.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "ui/base/resource/resource_scale_factor.h"
#include "ui/webui/mojo_web_ui_controller.h"
#include "ui/webui/resources/js/browser_command/browser_command.mojom.h"
namespace base {
class RefCountedMemory;
}
namespace content {
class WebUI;
}
class BrowserCommandHandler;
class PrefRegistrySimple;
class Profile;
class WhatsNewHandler;
class WhatsNewUI;
class WhatsNewUIConfig : public content::DefaultWebUIConfig<WhatsNewUI> {
public:
WhatsNewUIConfig();
// content::WebUIConfig:
bool IsWebUIEnabled(content::BrowserContext* browser_context) override;
};
// The Web UI controller for the chrome://whats-new page.
class WhatsNewUI : public ui::MojoWebUIController,
public whats_new::mojom::PageHandlerFactory,
public browser_command::mojom::CommandHandlerFactory,
content::WebContentsObserver {
public:
explicit WhatsNewUI(content::WebUI* web_ui);
~WhatsNewUI() override;
static void RegisterLocalStatePrefs(PrefRegistrySimple* registry);
static base::RefCountedMemory* GetFaviconResourceBytes(
ui::ResourceScaleFactor scale_factor);
// Instantiates the implementor of the
// whats_new::mojom::PageHandlerFactory mojo interface.
void BindInterface(
mojo::PendingReceiver<whats_new::mojom::PageHandlerFactory> receiver);
// Instantiates the implementor of the
// browser_command::mojom::CommandHandlerFactory mojo interface.
void BindInterface(
mojo::PendingReceiver<browser_command::mojom::CommandHandlerFactory>
pending_receiver);
// content::WebContentsObserver:
void DidStartNavigation(
content::NavigationHandle* navigation_handle) override;
WhatsNewUI(const WhatsNewUI&) = delete;
WhatsNewUI& operator=(const WhatsNewUI&) = delete;
private:
// whats_new::mojom::PageHandlerFactory:
void CreatePageHandler(
mojo::PendingRemote<whats_new::mojom::Page> page,
mojo::PendingReceiver<whats_new::mojom::PageHandler> receiver) override;
std::unique_ptr<WhatsNewHandler> page_handler_;
mojo::Receiver<whats_new::mojom::PageHandlerFactory> page_factory_receiver_{
this};
// browser_command::mojom::CommandHandlerFactory
void CreateBrowserCommandHandler(
mojo::PendingReceiver<browser_command::mojom::CommandHandler>
pending_handler) override;
std::unique_ptr<BrowserCommandHandler> command_handler_;
mojo::Receiver<browser_command::mojom::CommandHandlerFactory>
browser_command_factory_receiver_;
raw_ptr<Profile> profile_;
// Time the page started loading. Used for logging performance metrics.
base::Time navigation_start_time_;
WEB_UI_CONTROLLER_TYPE_DECL();
};
#endif // CHROME_BROWSER_UI_WEBUI_WHATS_NEW_WHATS_NEW_UI_H_
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