1 files changed, 72 insertions, 0 deletions
diff --git a/dom/system/nsDeviceSensors.h b/dom/system/nsDeviceSensors.h
new file mode 100644
index 0000000000..dd079088e6
--- /dev/null
+++ b/dom/system/nsDeviceSensors.h
@@ -0,0 +1,72 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsDeviceSensors_h
+#define nsDeviceSensors_h
+
+#include "nsIDeviceSensors.h"
+#include "nsCOMArray.h"
+#include "nsTArray.h"
+#include "nsCOMPtr.h"
+#include "mozilla/dom/DeviceMotionEvent.h"
+#include "mozilla/TimeStamp.h"
+#include "mozilla/HalSensor.h"
+
+class nsIDOMWindow;
+
+namespace mozilla::dom {
+class Document;
+class EventTarget;
+}  // namespace mozilla::dom
+
+class nsDeviceSensors : public nsIDeviceSensors,
+                        public mozilla::hal::ISensorObserver {
+  using DeviceAccelerationInit = mozilla::dom::DeviceAccelerationInit;
+  using DeviceRotationRateInit = mozilla::dom::DeviceRotationRateInit;
+
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIDEVICESENSORS
+
+  nsDeviceSensors();
+
+  void Notify(const mozilla::hal::SensorData& aSensorData) override;
+
+ private:
+  virtual ~nsDeviceSensors();
+
+  // sensor -> window listener
+  nsTArray<nsTArray<nsIDOMWindow*>*> mWindowListeners;
+
+  void FireDOMLightEvent(mozilla::dom::EventTarget* aTarget, double value);
+
+  void MaybeFireDOMUserProximityEvent(mozilla::dom::EventTarget* aTarget,
+                                      double aValue, double aMax);
+
+  void FireDOMUserProximityEvent(mozilla::dom::EventTarget* aTarget,
+                                 bool aNear);
+
+  void FireDOMOrientationEvent(mozilla::dom::EventTarget* target, double aAlpha,
+                               double aBeta, double aGamma, bool aIsAbsolute);
+
+  void FireDOMMotionEvent(mozilla::dom::Document* domDoc,
+                          mozilla::dom::EventTarget* target, uint32_t type,
+                          PRTime timestamp, double x, double y, double z);
+
+  inline bool IsSensorEnabled(uint32_t aType) {
+    return mWindowListeners[aType]->Length() > 0;
+  }
+
+  bool IsSensorAllowedByPref(uint32_t aType, nsIDOMWindow* aWindow);
+
+  mozilla::TimeStamp mLastDOMMotionEventTime;
+  bool mIsUserProximityNear;
+  mozilla::Maybe<DeviceAccelerationInit> mLastAcceleration;
+  mozilla::Maybe<DeviceAccelerationInit> mLastAccelerationIncludingGravity;
+  mozilla::Maybe<DeviceRotationRateInit> mLastRotationRate;
+};
+
+#endif