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- // Copyright 2020 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 ASH_SYSTEM_UNIFIED_NOTIFICATION_ICONS_CONTROLLER_H_
- #define ASH_SYSTEM_UNIFIED_NOTIFICATION_ICONS_CONTROLLER_H_
- #include "ash/ash_export.h"
- #include "ash/public/cpp/session/session_observer.h"
- #include "ash/system/tray/tray_item_view.h"
- #include "ash/system/unified/unified_system_tray_model.h"
- #include "base/scoped_observation.h"
- #include "ui/message_center/message_center_observer.h"
- namespace message_center {
- class Notification;
- } // namespace message_center
- namespace ash {
- class UnifiedSystemTray;
- class TrayContainer;
- class TrayItemView;
- class NotificationCounterView;
- class NotificationIconsController;
- class QuietModeView;
- class SeparatorTrayItemView;
- // Tray item view for notification icon shown in the tray.
- class ASH_EXPORT NotificationIconTrayItemView : public TrayItemView {
- public:
- NotificationIconTrayItemView(Shelf* shelf,
- NotificationIconsController* controller_);
- ~NotificationIconTrayItemView() override;
- NotificationIconTrayItemView(const NotificationIconTrayItemView&) = delete;
- NotificationIconTrayItemView& operator=(const NotificationIconTrayItemView&) =
- delete;
- // Set the image and tooltip for the view according to the notification.
- void SetNotification(message_center::Notification* notification);
- // Reset notification pointer, id, image and tooltip text.
- void Reset();
- // Returns a string describing the current state for accessibility.
- const std::u16string& GetAccessibleNameString() const;
- const std::string& GetNotificationId() const;
- // TrayItemView:
- void HandleLocaleChange() override;
- const char* GetClassName() const override;
- void OnThemeChanged() override;
- private:
- // Store the id to make sure we still have it when notification is removed and
- // goes out of scope.
- std::string notification_id_;
- NotificationIconsController* const controller_;
- };
- // Controller for notification icons in UnifiedSystemTray button. The icons will
- // be displayed in medium or large screen size and only for important
- // notifications.
- class ASH_EXPORT NotificationIconsController
- : public UnifiedSystemTrayModel::Observer,
- public message_center::MessageCenterObserver,
- public SessionObserver {
- public:
- explicit NotificationIconsController(UnifiedSystemTray* tray);
- ~NotificationIconsController() override;
- NotificationIconsController(const NotificationIconsController&) = delete;
- NotificationIconsController& operator=(const NotificationIconsController&) =
- delete;
- // Initialize the view by adding items to the container of the tray.
- void AddNotificationTrayItems(TrayContainer* tray_container);
- // Returns true if any item in `tray_items_` is containing a notification.
- bool TrayItemHasNotification() const;
- // Returns the number of notification icons showing in |tray_items_|.
- size_t TrayNotificationIconsCount() const;
- // Returns a string describing the current state for accessibility.
- std::u16string GetAccessibleNameString() const;
- // Update notification indicators, including counters and quiet mode view.
- void UpdateNotificationIndicators();
- // UnifiedSystemTrayModel::Observer:
- void OnSystemTrayButtonSizeChanged(
- UnifiedSystemTrayModel::SystemTrayButtonSize system_tray_size) override;
- // message_center::MessageCenterObserver:
- void OnNotificationAdded(const std::string& id) override;
- void OnNotificationRemoved(const std::string& id, bool by_user) override;
- void OnNotificationUpdated(const std::string& id) override;
- // SessionObserver:
- void OnSessionStateChanged(session_manager::SessionState state) override;
- std::vector<NotificationIconTrayItemView*> tray_items() {
- return tray_items_;
- }
- NotificationCounterView* notification_counter_view() {
- return notification_counter_view_;
- }
- QuietModeView* quiet_mode_view() { return quiet_mode_view_; }
- bool icons_view_visible() const { return icons_view_visible_; }
- // Iterate through the notifications in message center and update the icons
- // shown accordingly.
- void UpdateNotificationIcons();
- private:
- friend class NotificationIconsControllerTest;
- // If the notification with given id is currently shown in tray, returns the
- // pointer to that tray item. Otherwise, returns a null pointer.
- NotificationIconTrayItemView* GetNotificationIconShownInTray(
- const std::string& id);
- // Contains notification icon tray items that are added to tray container. All
- // items are owned by views hierarchy.
- std::vector<NotificationIconTrayItemView*> tray_items_;
- // Points to the first item that is available to use among the notification
- // icons tray item. All the items in previous index are used and visible.
- size_t first_unused_item_index_ = 0;
- // Indicates if the notification icons view is set to be shown. Currently, we
- // show the icon view in medium or large screen size.
- bool icons_view_visible_ = false;
- UnifiedSystemTray* tray_;
- NotificationCounterView* notification_counter_view_ = nullptr;
- QuietModeView* quiet_mode_view_ = nullptr;
- SeparatorTrayItemView* separator_ = nullptr;
- base::ScopedObservation<UnifiedSystemTrayModel,
- UnifiedSystemTrayModel::Observer>
- system_tray_model_observation_{this};
- };
- } // namespace ash
- #endif // ASH_SYSTEM_UNIFIED_NOTIFICATION_ICONS_CONTROLLER_H_
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