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// Copyright 2017 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_SYSTEM_PALETTE_PALETTE_WELCOME_BUBBLE_H_
#define ASH_SYSTEM_PALETTE_PALETTE_WELCOME_BUBBLE_H_
#include "ash/ash_export.h"
#include "ash/public/cpp/session/session_observer.h"
#include "base/memory/raw_ptr.h"
#include "ui/base/metadata/metadata_header_macros.h"
#include "ui/events/event_handler.h"
#include "ui/views/bubble/bubble_dialog_delegate_view.h"
#include "ui/views/widget/widget_observer.h"
class PrefRegistrySimple;
class PrefService;
namespace views {
class View;
}
namespace ash {
class PaletteTray;
// Controlled by PaletteWelcomeBubble and anchored to a PaletteTray.
class PaletteWelcomeBubbleView : public views::BubbleDialogDelegateView {
METADATA_HEADER(PaletteWelcomeBubbleView, views::BubbleDialogDelegateView)
public:
PaletteWelcomeBubbleView(views::View* anchor,
views::BubbleBorder::Arrow arrow);
PaletteWelcomeBubbleView(const PaletteWelcomeBubbleView&) = delete;
PaletteWelcomeBubbleView& operator=(const PaletteWelcomeBubbleView&) = delete;
~PaletteWelcomeBubbleView() override = default;
void Init() override;
};
// The PaletteWelcomeBubble handles displaying a warm welcome bubble letting
// users know about the PaletteTray the first time a stylus is ejected, or if an
// external stylus is detected. PaletteTray controls the visibility of the
// bubble.
class ASH_EXPORT PaletteWelcomeBubble : public SessionObserver,
public views::WidgetObserver,
public ui::EventHandler {
public:
explicit PaletteWelcomeBubble(PaletteTray* tray);
PaletteWelcomeBubble(const PaletteWelcomeBubble&) = delete;
PaletteWelcomeBubble& operator=(const PaletteWelcomeBubble&) = delete;
~PaletteWelcomeBubble() override;
static void RegisterProfilePrefs(PrefRegistrySimple* registry);
// Show the welcome bubble iff it has not been shown before.
void ShowIfNeeded();
// Get the pref which stores whether the bubble has been shown before.
bool HasBeenShown() const;
// Set the pref which stores whether the bubble has been shown before as true.
// The bubble will not be shown after this is called.
void MarkAsShown();
// SessionObserver:
void OnActiveUserPrefServiceChanged(PrefService* pref_service) override;
// views::WidgetObserver:
void OnWidgetDestroying(views::Widget* widget) override;
// Returns the bubble view for tests, or null when the bubble is not showing.
views::View* GetBubbleViewForTesting();
private:
friend class PaletteWelcomeBubbleTest;
// Shows or hides the welcome bubble.
void Show();
void Hide();
// Disconnects from the observers and pre-target handlers.
void DisconnectObservers();
// ui::EventHandler:
void OnMouseEvent(ui::MouseEvent* event) override;
void OnTouchEvent(ui::TouchEvent* event) override;
// The PaletteTray this bubble is associated with. Serves as the anchor for
// the bubble. Not owned.
raw_ptr<PaletteTray> tray_ = nullptr;
raw_ptr<PrefService> active_user_pref_service_ = nullptr; // Not owned.
raw_ptr<PaletteWelcomeBubbleView> bubble_view_ = nullptr;
};
} // namespace ash
#endif // ASH_SYSTEM_PALETTE_PALETTE_WELCOME_BUBBLE_H_
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