dom/gamepad/GamepadPose.cpp

   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 #include "nsWrapperCache.h"
   8
   9 #include "mozilla/HoldDropJSObjects.h"
  10 #include "mozilla/dom/GamepadPoseBinding.h"
  11 #include "mozilla/dom/GamepadPose.h"
  12
  13 namespace mozilla::dom {
  14
  15 GamepadPose::GamepadPose(nsISupports* aParent, const GamepadPoseState& aState)
  16     : Pose(aParent), mPoseState(aState) {
  17   mozilla::HoldJSObjects(this);
  18 }
  19
  20 GamepadPose::GamepadPose(nsISupports* aParent) : Pose(aParent) {
  21   mozilla::HoldJSObjects(this);
  22   mPoseState.Clear();
  23 }
  24
  25 GamepadPose::~GamepadPose() { mozilla::DropJSObjects(this); }
  26
  27 /* virtual */
  28 JSObject* GamepadPose::WrapObject(JSContext* aJSContext,
  29                                   JS::Handle<JSObject*> aGivenProto) {
  30   return GamepadPose_Binding::Wrap(aJSContext, this, aGivenProto);
  31 }
  32
  33 bool GamepadPose::HasOrientation() const {
  34   return bool(mPoseState.flags & GamepadCapabilityFlags::Cap_Orientation);
  35 }
  36
  37 bool GamepadPose::HasPosition() const {
  38   return bool(mPoseState.flags & GamepadCapabilityFlags::Cap_Position) ||
  39          bool(mPoseState.flags & GamepadCapabilityFlags::Cap_PositionEmulated);
  40 }
  41
  42 void GamepadPose::GetPosition(JSContext* aJSContext,
  43                               JS::MutableHandle<JSObject*> aRetval,
  44                               ErrorResult& aRv) {
  45   const bool valid =
  46       mPoseState.isPositionValid &&
  47       (bool(mPoseState.flags & GamepadCapabilityFlags::Cap_Position) ||
  48        bool(mPoseState.flags & GamepadCapabilityFlags::Cap_PositionEmulated));
  49   SetFloat32Array(aJSContext, this, aRetval, mPosition,
  50                   valid ? mPoseState.position : nullptr, 3, aRv);
  51 }
  52
  53 void GamepadPose::GetLinearVelocity(JSContext* aJSContext,
  54                                     JS::MutableHandle<JSObject*> aRetval,
  55                                     ErrorResult& aRv) {
  56   const bool valid =
  57       mPoseState.isPositionValid &&
  58       (bool(mPoseState.flags & GamepadCapabilityFlags::Cap_Position) ||
  59        bool(mPoseState.flags & GamepadCapabilityFlags::Cap_PositionEmulated));
  60   SetFloat32Array(aJSContext, this, aRetval, mLinearVelocity,
  61                   valid ? mPoseState.linearVelocity : nullptr, 3, aRv);
  62 }
  63
  64 void GamepadPose::GetLinearAcceleration(JSContext* aJSContext,
  65                                         JS::MutableHandle<JSObject*> aRetval,
  66                                         ErrorResult& aRv) {
  67   const bool valid =
  68       mPoseState.isPositionValid &&
  69       bool(mPoseState.flags & GamepadCapabilityFlags::Cap_LinearAcceleration);
  70   SetFloat32Array(aJSContext, this, aRetval, mLinearAcceleration,
  71                   valid ? mPoseState.linearAcceleration : nullptr, 3, aRv);
  72 }
  73
  74 void GamepadPose::GetOrientation(JSContext* aJSContext,
  75                                  JS::MutableHandle<JSObject*> aRetval,
  76                                  ErrorResult& aRv) {
  77   const bool valid =
  78       mPoseState.isOrientationValid &&
  79       bool(mPoseState.flags & GamepadCapabilityFlags::Cap_Orientation);
  80   SetFloat32Array(aJSContext, this, aRetval, mOrientation,
  81                   valid ? mPoseState.orientation : nullptr, 4, aRv);
  82 }
  83
  84 void GamepadPose::GetAngularVelocity(JSContext* aJSContext,
  85                                      JS::MutableHandle<JSObject*> aRetval,
  86                                      ErrorResult& aRv) {
  87   const bool valid =
  88       mPoseState.isOrientationValid &&
  89       bool(mPoseState.flags & GamepadCapabilityFlags::Cap_Orientation);
  90   SetFloat32Array(aJSContext, this, aRetval, mAngularVelocity,
  91                   valid ? mPoseState.angularVelocity : nullptr, 3, aRv);
  92 }
  93
  94 void GamepadPose::GetAngularAcceleration(JSContext* aJSContext,
  95                                          JS::MutableHandle<JSObject*> aRetval,
  96                                          ErrorResult& aRv) {
  97   const bool valid =
  98       mPoseState.isOrientationValid &&
  99       bool(mPoseState.flags & GamepadCapabilityFlags::Cap_AngularAcceleration);
 100   SetFloat32Array(aJSContext, this, aRetval, mAngularAcceleration,
 101                   valid ? mPoseState.angularAcceleration : nullptr, 3, aRv);
 102 }
 103
 104 void GamepadPose::SetPoseState(const GamepadPoseState& aPose) {
 105   mPoseState = aPose;
 106 }
 107
 108 const GamepadPoseState& GamepadPose::GetPoseState() { return mPoseState; }
 109
 110 }  // namespace mozilla::dom