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
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6
7 #include "mozilla/dom/PushUtil.h"
8
9 namespace mozilla {
10 namespace dom {
11
CopyArrayBufferToArray(const ArrayBuffer & aBuffer,nsTArray<uint8_t> & aArray)12 /* static */ bool PushUtil::CopyArrayBufferToArray(const ArrayBuffer& aBuffer,
13 nsTArray<uint8_t>& aArray) {
14 MOZ_ASSERT(aArray.IsEmpty());
15 aBuffer.ComputeLengthAndData();
16 return aArray.SetCapacity(aBuffer.Length(), fallible) &&
17 aArray.InsertElementsAt(0, aBuffer.Data(), aBuffer.Length(), fallible);
18 }
19
CopyArrayBufferViewToArray(const ArrayBufferView & aView,nsTArray<uint8_t> & aArray)20 /* static */ bool PushUtil::CopyArrayBufferViewToArray(
21 const ArrayBufferView& aView, nsTArray<uint8_t>& aArray) {
22 MOZ_ASSERT(aArray.IsEmpty());
23 aView.ComputeLengthAndData();
24 return aArray.SetCapacity(aView.Length(), fallible) &&
25 aArray.InsertElementsAt(0, aView.Data(), aView.Length(), fallible);
26 }
27
CopyBufferSourceToArray(const OwningArrayBufferViewOrArrayBuffer & aSource,nsTArray<uint8_t> & aArray)28 /* static */ bool PushUtil::CopyBufferSourceToArray(
29 const OwningArrayBufferViewOrArrayBuffer& aSource,
30 nsTArray<uint8_t>& aArray) {
31 if (aSource.IsArrayBuffer()) {
32 return CopyArrayBufferToArray(aSource.GetAsArrayBuffer(), aArray);
33 }
34 if (aSource.IsArrayBufferView()) {
35 return CopyArrayBufferViewToArray(aSource.GetAsArrayBufferView(), aArray);
36 }
37 MOZ_CRASH("Uninitialized union: expected buffer or view");
38 }
39
CopyArrayToArrayBuffer(JSContext * aCx,const nsTArray<uint8_t> & aArray,JS::MutableHandle<JSObject * > aValue,ErrorResult & aRv)40 /* static */ void PushUtil::CopyArrayToArrayBuffer(
41 JSContext* aCx, const nsTArray<uint8_t>& aArray,
42 JS::MutableHandle<JSObject*> aValue, ErrorResult& aRv) {
43 if (aArray.IsEmpty()) {
44 aValue.set(nullptr);
45 return;
46 }
47 JS::Rooted<JSObject*> buffer(
48 aCx, ArrayBuffer::Create(aCx, aArray.Length(), aArray.Elements()));
49 if (NS_WARN_IF(!buffer)) {
50 aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
51 return;
52 }
53 aValue.set(buffer);
54 }
55
56 } // namespace dom
57 } // namespace mozilla
58