| // 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 { |
| public: |
| PointerWatcherDelegateAura(); |
| ~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; |
| |
| private: |
| 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_; |
| |
| DISALLOW_COPY_AND_ASSIGN(PointerWatcherDelegateAura); |
| }; |
| |
| } // namespace ash |