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- // Copyright 2021 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/drag_drop/scoped_drag_drop_observer.h"
- #include "ash/shell.h"
- #include "ash/shell_observer.h"
- #include "base/scoped_observation.h"
- namespace ui {
- class DropTargetEvent;
- } // namespace ui
- namespace ash {
- ScopedDragDropObserver::ScopedDragDropObserver(
- aura::client::DragDropClient* client,
- base::RepeatingCallback<void(const ui::DropTargetEvent*)> event_callback)
- : event_callback_(std::move(event_callback)) {
- drag_drop_client_observer_.Observe(client);
- shell_observer_.Observe(ash::Shell::Get());
- }
- ScopedDragDropObserver::~ScopedDragDropObserver() = default;
- void ScopedDragDropObserver::OnDragUpdated(const ui::DropTargetEvent& event) {
- event_callback_.Run(&event);
- }
- void ScopedDragDropObserver::OnDragCompleted(const ui::DropTargetEvent& event) {
- event_callback_.Run(/*event=*/nullptr);
- }
- void ScopedDragDropObserver::OnDragCancelled() {
- event_callback_.Run(/*event=*/nullptr);
- }
- void ScopedDragDropObserver::OnShellDestroying() {
- drag_drop_client_observer_.Reset();
- }
- } // namespace ash
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