// Copyright 2017 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

using System;
using UnityEngine;

namespace Gvr.Internal {
  /// Manages cursor lock state while developer is using editor head and controller emulation.
  public class GvrCursorHelper {

    // Whether MouseControllerProvider is currently tracking mouse movement.
    private static bool cachedHeadEmulationActive;

    // Whether GvrEditorEmulator is currently tracking mouse movement.
    private static bool cachedControllerEmulationActive;

    public static bool HeadEmulationActive {
      set {
        cachedHeadEmulationActive = value;
        UpdateCursorLockState();
      }
    }

    public static bool ControllerEmulationActive {
      set {
        cachedControllerEmulationActive = value;
        UpdateCursorLockState();
      }
    }

    private static void UpdateCursorLockState() {
      bool active = cachedHeadEmulationActive || cachedControllerEmulationActive;
      Cursor.lockState = active ? CursorLockMode.Locked : CursorLockMode.None;
    }

  }
}