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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef CHROME_BROWSER_UI_TOOLBAR_APP_MENU_BADGE_CONTROLLER_H_ | |
| 6 #define CHROME_BROWSER_UI_TOOLBAR_APP_MENU_BADGE_CONTROLLER_H_ | |
| 7 | |
| 8 #include "base/macros.h" | |
| 9 #include "chrome/browser/ui/toolbar/app_menu_icon_painter.h" | |
| 10 #include "content/public/browser/notification_details.h" | |
| 11 #include "content/public/browser/notification_observer.h" | |
| 12 #include "content/public/browser/notification_registrar.h" | |
| 13 #include "content/public/browser/notification_service.h" | |
| 14 | |
| 15 class Profile; | |
| 16 | |
| 17 // AppMenuBadgeController encapsulates the logic for badging the app menu icon | |
| 18 // as a result of various events - such as available updates, errors, etc. | |
| 19 class AppMenuBadgeController : public content::NotificationObserver { | |
| 20 public: | |
| 21 enum class BadgeType { | |
| 22 NONE, | |
| 23 UPGRADE_NOTIFICATION, | |
| 24 GLOBAL_ERROR, | |
| 25 INCOMPATIBILITY_WARNING, | |
| 26 }; | |
| 27 | |
| 28 // Delegate interface for receiving badge update notifications. | |
| 29 class Delegate { | |
| 30 public: | |
| 31 // Notifies the UI to update the badge to have the specified |severity|, as | |
| 32 // well as specifying whether it should |animate|. The |type| parameter | |
| 33 // specifies the type of change (i.e. the source of the notification). | |
| 34 virtual void UpdateBadgeSeverity(BadgeType type, | |
| 35 AppMenuIconPainter::Severity severity, | |
| 36 bool animate) = 0; | |
| 37 | |
| 38 protected: | |
| 39 virtual ~Delegate() {} | |
| 40 }; | |
| 41 | |
| 42 // Creates an instance of this class for the given |profile| that will notify | |
| 43 // |delegate| of updates. | |
| 44 AppMenuBadgeController(Profile* profile, Delegate* delegate); | |
| 45 ~AppMenuBadgeController() override; | |
| 46 | |
| 47 // Forces an update of the UI based on the current state of the world. This | |
| 48 // will check whether there are any current pending updates, global errors, | |
| 49 // etc. and based on that information trigger an appropriate call to the | |
| 50 // delegate. | |
| 51 void UpdateDelegate(); | |
| 52 | |
| 53 private: | |
| 54 // content::NotificationObserver: | |
| 55 void Observe(int type, | |
| 56 const content::NotificationSource& source, | |
| 57 const content::NotificationDetails& details) override; | |
| 58 | |
| 59 Profile* profile_; | |
| 60 Delegate* delegate_; | |
| 61 content::NotificationRegistrar registrar_; | |
| 62 | |
| 63 DISALLOW_COPY_AND_ASSIGN(AppMenuBadgeController); | |
| 64 }; | |
| 65 | |
| 66 #endif // CHROME_BROWSER_UI_TOOLBAR_APP_MENU_BADGE_CONTROLLER_H_ | |
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