ui/ozone/platform/wayland/test/wayland_drag_drop_test.h

// 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.

#ifndef UI_OZONE_PLATFORM_WAYLAND_TEST_WAYLAND_DRAG_DROP_TEST_H_
#define UI_OZONE_PLATFORM_WAYLAND_TEST_WAYLAND_DRAG_DROP_TEST_H_

#include "base/callback_forward.h"
#include "ui/ozone/platform/wayland/test/test_data_device.h"
#include "ui/ozone/platform/wayland/test/test_data_source.h"
#include "ui/ozone/platform/wayland/test/wayland_test.h"

namespace gfx {
class Point;
}

namespace wl {
class MockSurface;
class TestDataDeviceManager;
}  // namespace wl

namespace ui {

class WaylandWindow;

// Base class for Wayland drag-and-drop tests. Public methods allow test code to
// emulate dnd-related events from the test compositor and can be used in both
// data and window dragging test cases.
class WaylandDragDropTest : public WaylandTest,
                            public wl::TestDataDevice::Delegate {
 public:
  WaylandDragDropTest();
  WaylandDragDropTest(const WaylandDragDropTest&) = delete;
  WaylandDragDropTest& operator=(const WaylandDragDropTest&) = delete;

  // These are public for convenience, as they must be callable from lambda
  // functions, usually posted to task queue while the drag loop runs.
  void SendDndEnter(WaylandWindow* window, const gfx::Point& location);
  void SendDndLeave();
  void SendDndMotion(const gfx::Point& location);
  void SendDndCancelled();
  void ReadData(const std::string& mime_type,
                wl::TestDataSource::ReadDataCallback callback);

 protected:
  // WaylandTest:
  void SetUp() override;
  void TearDown() override;

  // wl::TestDataDevice::Delegate:
  void StartDrag(wl::TestDataSource* source,
                 wl::MockSurface* origin,
                 uint32_t serial) override;

  void OfferAndEnter(wl::MockSurface* surface, const gfx::Point& location);
  uint32_t NextSerial() const;
  uint32_t NextTime() const;
  void ScheduleTestTask(base::OnceClosure test_task);
  void RunTestTask(base::OnceClosure test_task);

  // Server objects
  wl::TestDataDeviceManager* data_device_manager_;
  wl::TestDataSource* data_source_;
};

}  // namespace ui

#endif  // UI_OZONE_PLATFORM_WAYLAND_TEST_WAYLAND_DRAG_DROP_TEST_H_