blob: b6c31bda723c0193ee5f840baddf0cafafe00202 [file] [log] [blame]
// Copyright 2016 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/pointer_watcher_delegate.h"
#include "base/macros.h"
#include "base/observer_list.h"
#include "ui/events/event_handler.h"
namespace gfx {
class Point;
namespace ui {
class LocatedEvent;
namespace views {
class Widget;
namespace ash {
// Support for PointerWatchers in non-mus ash, implemented with a pre-target
// EventHandler on the Shell.
class ASH_EXPORT PointerWatcherDelegateAura : public PointerWatcherDelegate,
public ui::EventHandler {
~PointerWatcherDelegateAura() override;
// PointerWatcherDelegate:
void AddPointerWatcher(views::PointerWatcher* watcher) override;
void RemovePointerWatcher(views::PointerWatcher* watcher) override;
// ui::EventHandler:
void OnMouseEvent(ui::MouseEvent* event) override;
void OnTouchEvent(ui::TouchEvent* event) override;
gfx::Point GetLocationInScreen(const ui::LocatedEvent& event) const;
views::Widget* GetTargetWidget(const ui::LocatedEvent& event) const;
// Must be empty on destruction.
base::ObserverList<views::PointerWatcher, true> pointer_watchers_;
} // namespace ash