| // Copyright 2017 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_EXTENSIONS_CHROME_APP_ICON_SERVICE_H_ |
| #define CHROME_BROWSER_EXTENSIONS_CHROME_APP_ICON_SERVICE_H_ |
| |
| #include <map> |
| #include <memory> |
| #include <set> |
| |
| #include "base/callback.h" |
| #include "base/macros.h" |
| #include "base/memory/weak_ptr.h" |
| #include "base/scoped_observation.h" |
| #include "build/chromeos_buildflags.h" |
| #include "components/keyed_service/core/keyed_service.h" |
| #include "extensions/browser/extension_registry.h" |
| #include "extensions/browser/extension_registry_observer.h" |
| |
| #if BUILDFLAG(IS_CHROMEOS_ASH) |
| #include "chrome/browser/ui/ash/shelf/shelf_extension_app_updater.h" |
| #endif |
| |
| namespace content { |
| class BrowserContext; |
| } |
| |
| namespace gfx { |
| class ImageSkia; |
| class Size; |
| } // namespace gfx |
| |
| namespace extensions { |
| |
| class ChromeAppIcon; |
| class ChromeAppIconDelegate; |
| |
| // Factory for ChromeAppIcon. Each created icon is tracked by this service. |
| // Once some condition that affects how extension app icon should look is |
| // changed then corresponded app icons are automatically updated. This service |
| // is bound to content::BrowserContext. |
| // Usage: ChromeAppIconService::Get(context)->CreateIcon(). |
| class ChromeAppIconService : public KeyedService, |
| #if BUILDFLAG(IS_CHROMEOS_ASH) |
| public ShelfAppUpdater::Delegate, |
| #endif |
| public ExtensionRegistryObserver { |
| public: |
| using ResizeFunction = |
| base::RepeatingCallback<void(const gfx::Size&, gfx::ImageSkia*)>; |
| |
| explicit ChromeAppIconService(content::BrowserContext* context); |
| |
| ~ChromeAppIconService() override; |
| |
| // Convenience function to get the ChromeAppIconService for a |
| // BrowserContext. |
| static ChromeAppIconService* Get(content::BrowserContext* context); |
| |
| // Creates extension app icon for requested app and size. Icon updates are |
| // dispatched via |delegate|. |
| // |resize_function| overrides icon resizing behavior if non-null. Otherwise |
| // IconLoader with perform the resizing. In both cases |resource_size_in_dip| |
| // is used to pick the correct icon representation from resources. |
| std::unique_ptr<ChromeAppIcon> CreateIcon( |
| ChromeAppIconDelegate* delegate, |
| const std::string& app_id, |
| int resource_size_in_dip, |
| const ResizeFunction& resize_function); |
| |
| std::unique_ptr<ChromeAppIcon> CreateIcon(ChromeAppIconDelegate* delegate, |
| const std::string& app_id, |
| int resource_size_in_dip); |
| |
| // KeyedService: |
| void Shutdown() override; |
| |
| private: |
| class Updater; |
| |
| // System may have multiple icons for the same app id with different |
| // dimensions. For example icon in shelf and app launcher. |
| using IconMap = std::map<std::string, std::set<ChromeAppIcon*>>; |
| |
| // Called from ChromeAppIcon DTOR. |
| void OnIconDestroyed(ChromeAppIcon* icon); |
| |
| // Called from Updater when corresponded app icons need to be updated. |
| void OnAppUpdated(const std::string& app_id); |
| |
| // ExtensionRegistryObserver: |
| void OnExtensionLoaded(content::BrowserContext* browser_context, |
| const Extension* extension) override; |
| void OnExtensionUnloaded(content::BrowserContext* browser_context, |
| const Extension* extension, |
| UnloadedExtensionReason reason) override; |
| |
| #if BUILDFLAG(IS_CHROMEOS_ASH) |
| // ShelfAppUpdater::Delegate: |
| void OnAppUpdated(content::BrowserContext* browser_context, |
| const std::string& app_id, |
| bool reload_icon) override; |
| #endif |
| |
| // Unowned pointer. |
| content::BrowserContext* context_; |
| |
| #if BUILDFLAG(IS_CHROMEOS_ASH) |
| // On Chrome OS this handles Chrome app life-cycle events that may change how |
| // extension based app icon looks like. |
| std::unique_ptr<ShelfExtensionAppUpdater> app_updater_; |
| #endif |
| |
| // Deletes the icon set for |app_id| from the map if it is empty. |
| void MaybeCleanupIconSet(const std::string& app_id); |
| |
| IconMap icon_map_; |
| |
| base::ScopedObservation<ExtensionRegistry, ExtensionRegistryObserver> |
| observation_{this}; |
| |
| base::WeakPtrFactory<ChromeAppIconService> weak_ptr_factory_{this}; |
| |
| DISALLOW_COPY_AND_ASSIGN(ChromeAppIconService); |
| }; |
| |
| } // namespace extensions |
| |
| #endif // CHROME_BROWSER_EXTENSIONS_CHROME_APP_ICON_SERVICE_H_ |