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// Copyright 2018 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.
#include "ash/ash_export.h"
#include "ash/system/tray/system_tray_item_uma_type.h"
namespace ash {
class FeaturePodButton;
// Base class for controllers of feature pod buttons.
// To add a new feature pod button, implement this class, and add to the list in
// UnifiedSystemTrayController::InitFeaturePods().
class ASH_EXPORT FeaturePodControllerBase {
virtual ~FeaturePodControllerBase() {}
// Create the view. Subclasses instantiate FeaturePodButton.
// The view will be onwed by views hierarchy. The view will be always deleted
// after the controller is destructed (UnifiedSystemTrayBubble guarantees
// this).
virtual FeaturePodButton* CreateButton() = 0;
// Called when the icon of the feature pod button is clicked.
// If the feature pod is togglable, it is expected to toggle the feature.
virtual void OnIconPressed() = 0;
// Called when the label hover area of the feature pod button is clicked.
// If the feature pod has a detailed view, it is expected to show the detailed
// view. Defaults to OnIconPressed().
virtual void OnLabelPressed();
// Return histogram value for Ash.SystemMenu.DefaultView.VisibleRows. If the
// button is not recorded, UMA_NOT_RECORDED will be used.
virtual SystemTrayItemUmaType GetUmaType() const = 0;
} // namespace ash