chromium/chrome/browser/ui/webui/ash/sensor_info/sensor.mojom

// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

module sensor.mojom;

// SensorType represents type of the sensor where this update is from.
enum SensorType {
  kLidAngle = 0,
  kAccelerometerBase = 1,
  kAccelerometerLid = 2,
  kGyroscopeBase = 3,
  kGyroscopeLid = 4,
  kSensorTypeCount = 5,
};

// A single non lid_angle sensor's update.
// 'x','y','z' are sensor's value from x, y, z axis.
struct NonLidAngleUpdateInfo {
  SensorType sensor_type;
  float x;
  float y;
  float z;
};

// A single lid_angle sensor's update.
// 'x' is the angle between the lid and the base.
struct LidAngleUpdateInfo {
  SensorType sensor_type;
  float x;
};

// Lid_angle sensor only has a single value so we use a union to describe
// SensorUpdateInfo.
union SensorUpdateInfo{
  LidAngleUpdateInfo lid_angle_update_info;
  NonLidAngleUpdateInfo update_info;
};

// PageHandlerFactory managing PageHandler.
interface PageHandlerFactory {
  // Creates PageHandler in C++ side. establish connection to TS side.
  CreatePageHandler(pending_receiver<PageHandler> handler);
};

// Called from TS side of chrome://sensor-info (Renderer -> Browser)
interface PageHandler {
  // Starts writing SensorUpdates to file.
  StartRecordingUpdate();
  // Stops writing SensorUpdates to file.
  StopRecordingUpdate();
};