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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_SHELF_HOME_TO_OVERVIEW_NUDGE_CONTROLLER_H_
#define ASH_SHELF_HOME_TO_OVERVIEW_NUDGE_CONTROLLER_H_
#include "ash/ash_export.h"
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/scoped_multi_source_observation.h"
#include "base/timer/timer.h"
#include "ui/views/widget/widget.h"
#include "ui/views/widget/widget_observer.h"
namespace ash {
class ContextualNudge;
class HotseatWidget;
class ASH_EXPORT HomeToOverviewNudgeController : views::WidgetObserver {
public:
// Indicates the reason the nudge is being hidden. Used to determine the exact
// transition to use when hiding the nudge.
enum class HideTransition { kShelfStateChange, kUserTap, kNudgeTimeout };
explicit HomeToOverviewNudgeController(HotseatWidget* hotseat_widget);
HomeToOverviewNudgeController(const HomeToOverviewNudgeController& other) =
delete;
~HomeToOverviewNudgeController() override;
HomeToOverviewNudgeController& operator=(
const HomeToOverviewNudgeController& other) = delete;
// Sets whether the home to overview nudge can be shown for the current shelf
// state. If nudge is allowed, controller may show the nudge (if required). If
// the nudge is not allowed, the nudge will be hidden if currently shown.
void SetNudgeAllowedForCurrentShelf(bool allowed);
// views::WidgetObserver:
void OnWidgetDestroying(views::Widget* widget) override;
void OnWidgetBoundsChanged(views::Widget* widget,
const gfx::Rect& new_bounds) override;
ContextualNudge* nudge_for_testing() { return nudge_; }
bool HasShowTimerForTesting() const;
void FireShowTimerForTesting();
bool HasHideTimerForTesting() const;
void FireHideTimerForTesting();
private:
// Creates and shows the nudge bubble, schedules showing animation for the
// nudge and hotseat widgets, and schedules nudge hide timer as needed.
void ShowNudge();
// Sets up hotseat and nudge wdget animation for hiding the nudge, and closes
// the nudge widget when the animation finishes.
void HideNudge(HideTransition transition);
// Updates the nudge anchor bounds for the current hotseat and shelf bounds.
void UpdateNudgeAnchorBounds();
// Passed to |nudge_| as its tap gesture handler.
void HandleNudgeTap();
bool nudge_allowed_for_shelf_state_ = false;
const raw_ptr<HotseatWidget, DanglingUntriaged | ExperimentalAsh>
hotseat_widget_;
raw_ptr<ContextualNudge, ExperimentalAsh> nudge_ = nullptr;
base::OneShotTimer nudge_show_timer_;
base::OneShotTimer nudge_hide_timer_;
// Observes hotseat widget to detect the hotseat bounds changes, and the
// nudge widget to detect that the widget is being destroyed.
base::ScopedMultiSourceObservation<views::Widget, views::WidgetObserver>
widget_observations_{this};
base::WeakPtrFactory<HomeToOverviewNudgeController> weak_factory_{this};
};
} // namespace ash
#endif // ASH_SHELF_HOME_TO_OVERVIEW_NUDGE_CONTROLLER_H_
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