1 files changed, 145 insertions, 0 deletions
diff --git a/dom/gamepad/Gamepad.h b/dom/gamepad/Gamepad.h
new file mode 100644
index 0000000000..689ea7f6d2
--- /dev/null
+++ b/dom/gamepad/Gamepad.h
@@ -0,0 +1,145 @@
+/* -*- 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 mozilla_dom_gamepad_Gamepad_h
+#define mozilla_dom_gamepad_Gamepad_h
+
+#include "mozilla/dom/GamepadBinding.h"
+#include "mozilla/dom/GamepadButton.h"
+#include "mozilla/dom/GamepadHandle.h"
+#include "mozilla/dom/GamepadPose.h"
+#include "mozilla/dom/GamepadHapticActuator.h"
+#include "mozilla/dom/GamepadLightIndicator.h"
+#include "mozilla/dom/GamepadTouch.h"
+#include "mozilla/dom/Performance.h"
+#include <stdint.h>
+#include "nsCOMPtr.h"
+#include "nsTHashMap.h"
+#include "nsString.h"
+#include "nsTArray.h"
+#include "nsWrapperCache.h"
+
+namespace mozilla::dom {
+
+class GamepadHapticActuator;
+
+// Per spec:
+// https://dvcs.w3.org/hg/gamepad/raw-file/default/gamepad.html#remapping
+const int kStandardGamepadButtons = 17;
+const int kStandardGamepadAxes = 4;
+
+const int kButtonLeftTrigger = 6;
+const int kButtonRightTrigger = 7;
+
+const int kLeftStickXAxis = 0;
+const int kLeftStickYAxis = 1;
+const int kRightStickXAxis = 2;
+const int kRightStickYAxis = 3;
+
+class Gamepad final : public nsISupports, public nsWrapperCache {
+ public:
+  Gamepad(nsISupports* aParent, const nsAString& aID, int32_t aIndex,
+          GamepadHandle aHandle, GamepadMappingType aMapping, GamepadHand aHand,
+          uint32_t aDisplayID, uint32_t aNumButtons, uint32_t aNumAxes,
+          uint32_t aNumHaptics, uint32_t aNumLightIndicator,
+          uint32_t aNumTouchEvents);
+
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(Gamepad)
+
+  void SetConnected(bool aConnected);
+  void SetButton(uint32_t aButton, bool aPressed, bool aTouched, double aValue);
+  void SetAxis(uint32_t aAxis, double aValue);
+  void SetIndex(int32_t aIndex);
+  void SetPose(const GamepadPoseState& aPose);
+  void SetLightIndicatorType(uint32_t aLightIndex,
+                             GamepadLightIndicatorType aType);
+  void SetTouchEvent(uint32_t aTouchIndex, const GamepadTouchState& aTouch);
+  void SetHand(GamepadHand aHand);
+
+  // Make the state of this gamepad equivalent to other.
+  void SyncState(Gamepad* aOther);
+
+  // Return a new Gamepad containing the same data as this object,
+  // parented to aParent.
+  already_AddRefed<Gamepad> Clone(nsISupports* aParent);
+
+  nsISupports* GetParentObject() const { return mParent; }
+
+  virtual JSObject* WrapObject(JSContext* aCx,
+                               JS::Handle<JSObject*> aGivenProto) override;
+
+  void GetId(nsAString& aID) const { aID = mID; }
+
+  DOMHighResTimeStamp Timestamp() const { return mTimestamp; }
+
+  GamepadMappingType Mapping() { return mMapping; }
+
+  uint32_t DisplayId() const { return mDisplayId; }
+
+  GamepadHand Hand() { return mHand; }
+
+  bool Connected() const { return mConnected; }
+
+  int32_t Index() const { return mIndex; }
+
+  void GetButtons(nsTArray<RefPtr<GamepadButton>>& aButtons) const {
+    aButtons = mButtons.Clone();
+  }
+
+  void GetAxes(nsTArray<double>& aAxes) const { aAxes = mAxes.Clone(); }
+
+  GamepadPose* GetPose() const { return mPose; }
+
+  void GetHapticActuators(
+      nsTArray<RefPtr<GamepadHapticActuator>>& aHapticActuators) const {
+    aHapticActuators = mHapticActuators.Clone();
+  }
+
+  void GetLightIndicators(
+      nsTArray<RefPtr<GamepadLightIndicator>>& aLightIndicators) const {
+    aLightIndicators = mLightIndicators.Clone();
+  }
+
+  void GetTouchEvents(nsTArray<RefPtr<GamepadTouch>>& aTouchEvents) const {
+    aTouchEvents = mTouchEvents.Clone();
+  }
+
+  GamepadHandle GetHandle() const { return mHandle; }
+
+ private:
+  virtual ~Gamepad() = default;
+  void UpdateTimestamp();
+
+ protected:
+  nsCOMPtr<nsISupports> mParent;
+  nsString mID;
+  int32_t mIndex;
+  // the gamepad hash key in GamepadManager
+  GamepadHandle mHandle;
+  uint32_t mDisplayId;
+  uint32_t mTouchIdHashValue;
+  // The mapping in use.
+  GamepadMappingType mMapping;
+  GamepadHand mHand;
+
+  // true if this gamepad is currently connected.
+  bool mConnected;
+
+  // Current state of buttons, axes.
+  nsTArray<RefPtr<GamepadButton>> mButtons;
+  nsTArray<double> mAxes;
+  DOMHighResTimeStamp mTimestamp;
+  RefPtr<GamepadPose> mPose;
+  nsTArray<RefPtr<GamepadHapticActuator>> mHapticActuators;
+  nsTArray<RefPtr<GamepadLightIndicator>> mLightIndicators;
+  nsTArray<RefPtr<GamepadTouch>> mTouchEvents;
+  nsTHashMap<nsUint32HashKey, uint32_t> mTouchIdHash;
+};
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_gamepad_Gamepad_h