src/embedder/test_util/mouse_event_builder.h

// Copyright 2013 The Flutter 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 FLUTTER_SHELL_PLATFORM_FUCHSIA_TEST_UTIL_MOUSE_EVENT_BUILDER_H_
#define FLUTTER_SHELL_PLATFORM_FUCHSIA_TEST_UTIL_MOUSE_EVENT_BUILDER_H_

#include <fuchsia/ui/pointer/cpp/fidl.h>
#include <zircon/types.h>

#include <array>
#include <optional>
#include <vector>

namespace embedder_testing {

// A helper class for crafting a fuchsia.ui.pointer.MouseEventBuilder table.
class MouseEventBuilder {
 public:
  static MouseEventBuilder New();

  MouseEventBuilder& AddTime(zx_time_t time);
  MouseEventBuilder& AddSample(uint32_t id, std::array<float, 2> position,
                               std::vector<uint8_t> pressed_buttons, std::array<int64_t, 2> scroll,
                               std::array<int64_t, 2> scroll_in_physical_pixel,
                               bool is_precision_scroll);
  MouseEventBuilder& AddViewParameters(std::array<std::array<float, 2>, 2> view,
                                       std::array<std::array<float, 2>, 2> viewport,
                                       std::array<float, 9> transform);
  MouseEventBuilder& AddMouseDeviceInfo(uint32_t id, std::vector<uint8_t> buttons);
  fuchsia::ui::pointer::MouseEvent Build();
  std::vector<fuchsia::ui::pointer::MouseEvent> BuildAsVector();

 private:
  std::optional<zx_time_t> time_;
  std::optional<fuchsia::ui::pointer::MousePointerSample> sample_;
  std::optional<fuchsia::ui::pointer::ViewParameters> params_;
  std::optional<fuchsia::ui::pointer::MouseDeviceInfo> device_info_;
};

}  // namespace embedder_testing

#endif  // FLUTTER_SHELL_PLATFORM_FUCHSIA_TEST_UTIL_MOUSE_EVENT_BUILDER_H_