chrome/browser/ui/extensions/hosted_app_browser_controller.h

// Copyright 2015 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 CHROME_BROWSER_UI_EXTENSIONS_HOSTED_APP_BROWSER_CONTROLLER_H_
#define CHROME_BROWSER_UI_EXTENSIONS_HOSTED_APP_BROWSER_CONTROLLER_H_

#include <memory>
#include <string>

#include "base/macros.h"
#include "base/optional.h"
#include "base/strings/string16.h"
#include "chrome/browser/extensions/extension_uninstall_dialog.h"
#include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
#include "chrome/browser/ui/web_applications/app_browser_controller.h"
#include "components/services/app_service/public/mojom/types.mojom-forward.h"
#include "third_party/skia/include/core/SkColor.h"

class Browser;

namespace gfx {
class ImageSkia;
}

namespace extensions {

class Extension;

// Class to encapsulate logic to control the browser UI for extension based web
// apps.
class HostedAppBrowserController : public web_app::AppBrowserController,
                                   public ExtensionUninstallDialog::Delegate {
 public:
  explicit HostedAppBrowserController(Browser* browser);
  ~HostedAppBrowserController() override;

  // web_app::AppBrowserController:
  bool HasMinimalUiButtons() const override;
  gfx::ImageSkia GetWindowAppIcon() const override;
  gfx::ImageSkia GetWindowIcon() const override;
  base::Optional<SkColor> GetThemeColor() const override;
  base::string16 GetTitle() const override;
  base::string16 GetAppShortName() const override;
  base::string16 GetFormattedUrlOrigin() const override;
  GURL GetAppLaunchURL() const override;
  bool IsUrlInAppScope(const GURL& url) const override;
  bool CanUninstall() const override;
  void Uninstall() override;
  bool IsInstalled() const override;
  bool IsHostedApp() const override;

 protected:
  // ExtensionUninstallDialog::Delegate:
  void OnExtensionUninstallDialogClosed(bool success,
                                        const base::string16& error) override;

  // web_app::AppBrowserController:
  void OnTabInserted(content::WebContents* contents) override;
  void OnTabRemoved(content::WebContents* contents) override;

 private:
  // Will return nullptr if the extension has been uninstalled.
  const Extension* GetExtension() const;

  // Helper function to call AppServiceProxy to load icon.
  void LoadAppIcon(bool allow_placeholder_icon) const;
  // Invoked when the icon is loaded.
  void OnLoadIcon(apps::mojom::IconValuePtr icon_value);

  gfx::ImageSkia app_icon_;

  std::unique_ptr<ExtensionUninstallDialog> uninstall_dialog_;

  base::WeakPtrFactory<HostedAppBrowserController> weak_ptr_factory_{this};
  DISALLOW_COPY_AND_ASSIGN(HostedAppBrowserController);
};

}  // namespace extensions

#endif  // CHROME_BROWSER_UI_EXTENSIONS_HOSTED_APP_BROWSER_CONTROLLER_H_