tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
Log | Files | Refs | README | LICENSE

Gamepad.h (4523B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
      5 * You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #ifndef mozilla_dom_gamepad_Gamepad_h
      8 #define mozilla_dom_gamepad_Gamepad_h
      9 
     10 #include <stdint.h>
     11 
     12 #include "mozilla/dom/GamepadBinding.h"
     13 #include "mozilla/dom/GamepadButton.h"
     14 #include "mozilla/dom/GamepadHandle.h"
     15 #include "mozilla/dom/GamepadHapticActuator.h"
     16 #include "mozilla/dom/GamepadLightIndicator.h"
     17 #include "mozilla/dom/GamepadPose.h"
     18 #include "mozilla/dom/GamepadTouch.h"
     19 #include "mozilla/dom/Performance.h"
     20 #include "nsCOMPtr.h"
     21 #include "nsString.h"
     22 #include "nsTArray.h"
     23 #include "nsTHashMap.h"
     24 #include "nsWrapperCache.h"
     25 
     26 namespace mozilla::dom {
     27 
     28 class GamepadHapticActuator;
     29 
     30 // Per spec:
     31 // https://dvcs.w3.org/hg/gamepad/raw-file/default/gamepad.html#remapping
     32 const int kStandardGamepadButtons = 17;
     33 const int kStandardGamepadAxes = 4;
     34 
     35 const int kButtonLeftTrigger = 6;
     36 const int kButtonRightTrigger = 7;
     37 
     38 const int kLeftStickXAxis = 0;
     39 const int kLeftStickYAxis = 1;
     40 const int kRightStickXAxis = 2;
     41 const int kRightStickYAxis = 3;
     42 
     43 class Gamepad final : public nsISupports, public nsWrapperCache {
     44 public:
     45  Gamepad(nsISupports* aParent, const nsAString& aID, int32_t aIndex,
     46          GamepadHandle aHandle, GamepadMappingType aMapping, GamepadHand aHand,
     47          uint32_t aNumButtons, uint32_t aNumAxes, uint32_t aNumHaptics,
     48          uint32_t aNumLightIndicator, uint32_t aNumTouchEvents);
     49 
     50  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
     51  NS_DECL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(Gamepad)
     52 
     53  void SetConnected(bool aConnected);
     54  void SetButton(uint32_t aButton, bool aPressed, bool aTouched, double aValue);
     55  void SetAxis(uint32_t aAxis, double aValue);
     56  void SetIndex(int32_t aIndex);
     57  void SetPose(const GamepadPoseState& aPose);
     58  void SetLightIndicatorType(uint32_t aLightIndex,
     59                             GamepadLightIndicatorType aType);
     60  void SetTouchEvent(uint32_t aTouchIndex, const GamepadTouchState& aTouch);
     61  void SetHand(GamepadHand aHand);
     62 
     63  // Make the state of this gamepad equivalent to other.
     64  void SyncState(Gamepad* aOther);
     65 
     66  // Return a new Gamepad containing the same data as this object,
     67  // parented to aParent.
     68  already_AddRefed<Gamepad> Clone(nsISupports* aParent);
     69 
     70  nsISupports* GetParentObject() const { return mParent; }
     71 
     72  virtual JSObject* WrapObject(JSContext* aCx,
     73                               JS::Handle<JSObject*> aGivenProto) override;
     74 
     75  void GetId(nsAString& aID) const { aID = mID; }
     76 
     77  DOMHighResTimeStamp Timestamp() const { return mTimestamp; }
     78 
     79  GamepadMappingType Mapping() { return mMapping; }
     80 
     81  GamepadHand Hand() { return mHand; }
     82 
     83  bool Connected() const { return mConnected; }
     84 
     85  int32_t Index() const { return mIndex; }
     86 
     87  void GetButtons(nsTArray<RefPtr<GamepadButton>>& aButtons) const {
     88    aButtons = mButtons.Clone();
     89  }
     90 
     91  void GetAxes(nsTArray<double>& aAxes) const { aAxes = mAxes.Clone(); }
     92 
     93  GamepadPose* GetPose() const { return mPose; }
     94 
     95  void GetHapticActuators(
     96      nsTArray<RefPtr<GamepadHapticActuator>>& aHapticActuators) const {
     97    aHapticActuators = mHapticActuators.Clone();
     98  }
     99 
    100  void GetLightIndicators(
    101      nsTArray<RefPtr<GamepadLightIndicator>>& aLightIndicators) const {
    102    aLightIndicators = mLightIndicators.Clone();
    103  }
    104 
    105  void GetTouchEvents(nsTArray<RefPtr<GamepadTouch>>& aTouchEvents) const {
    106    aTouchEvents = mTouchEvents.Clone();
    107  }
    108 
    109  GamepadHandle GetHandle() const { return mHandle; }
    110 
    111 private:
    112  virtual ~Gamepad() = default;
    113  void UpdateTimestamp();
    114 
    115 protected:
    116  nsCOMPtr<nsISupports> mParent;
    117  nsString mID;
    118  int32_t mIndex;
    119  // the gamepad hash key in GamepadManager
    120  GamepadHandle mHandle;
    121  uint32_t mTouchIdHashValue;
    122  // The mapping in use.
    123  GamepadMappingType mMapping;
    124  GamepadHand mHand;
    125 
    126  // true if this gamepad is currently connected.
    127  bool mConnected;
    128 
    129  // Current state of buttons, axes.
    130  nsTArray<RefPtr<GamepadButton>> mButtons;
    131  nsTArray<double> mAxes;
    132  DOMHighResTimeStamp mTimestamp;
    133  RefPtr<GamepadPose> mPose;
    134  nsTArray<RefPtr<GamepadHapticActuator>> mHapticActuators;
    135  nsTArray<RefPtr<GamepadLightIndicator>> mLightIndicators;
    136  nsTArray<RefPtr<GamepadTouch>> mTouchEvents;
    137  nsTHashMap<nsUint32HashKey, uint32_t> mTouchIdHash;
    138 };
    139 
    140 }  // namespace mozilla::dom
    141 
    142 #endif  // mozilla_dom_gamepad_Gamepad_h