1 files changed, 63 insertions, 0 deletions
diff --git a/dom/base/Pose.cpp b/dom/base/Pose.cpp
new file mode 100644
index 0000000000..83a6756c56
--- /dev/null
+++ b/dom/base/Pose.cpp
@@ -0,0 +1,63 @@
+/* -*- 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/. */
+
+#include "js/experimental/TypedData.h"  // JS_GetFloat32ArrayData
+#include "mozilla/ErrorResult.h"
+#include "mozilla/HoldDropJSObjects.h"
+#include "mozilla/dom/TypedArray.h"
+#include "mozilla/dom/Pose.h"
+
+namespace mozilla::dom {
+
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_WITH_JS_MEMBERS(
+    Pose, (mParent),
+    (mPosition, mLinearVelocity, mLinearAcceleration, mOrientation,
+     mAngularVelocity, mAngularAcceleration))
+
+Pose::Pose(nsISupports* aParent)
+    : mParent(aParent),
+      mPosition(nullptr),
+      mLinearVelocity(nullptr),
+      mLinearAcceleration(nullptr),
+      mOrientation(nullptr),
+      mAngularVelocity(nullptr),
+      mAngularAcceleration(nullptr) {
+  mozilla::HoldJSObjects(this);
+}
+
+Pose::~Pose() { mozilla::DropJSObjects(this); }
+
+nsISupports* Pose::GetParentObject() const { return mParent; }
+
+void Pose::SetFloat32Array(JSContext* aJSContext, nsWrapperCache* creator,
+                           JS::MutableHandle<JSObject*> aRetVal,
+                           JS::Heap<JSObject*>& aObj, float* aVal,
+                           uint32_t aValLength, ErrorResult& aRv) {
+  if (!aVal) {
+    aRetVal.set(nullptr);
+    return;
+  }
+
+  if (!aObj) {
+    aObj =
+        Float32Array::Create(aJSContext, creator, Span(aVal, aValLength), aRv);
+    if (aRv.Failed()) {
+      return;
+    }
+  } else {
+    JS::AutoCheckCannotGC nogc;
+    bool isShared = false;
+    JS::Rooted<JSObject*> obj(aJSContext, aObj.get());
+    float* data = JS_GetFloat32ArrayData(obj, &isShared, nogc);
+    if (data) {
+      memcpy(data, aVal, aValLength * sizeof(float));
+    }
+  }
+
+  aRetVal.set(aObj);
+}
+
+}  // namespace mozilla::dom