1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
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 "mozilla/dom/PushUtil.h"
#include "mozilla/dom/UnionTypes.h"
namespace mozilla {
namespace dom {
/* static */
bool PushUtil::CopyArrayBufferToArray(const ArrayBuffer& aBuffer,
nsTArray<uint8_t>& aArray) {
MOZ_ASSERT(aArray.IsEmpty());
aBuffer.ComputeState();
return aArray.SetCapacity(aBuffer.Length(), fallible) &&
aArray.InsertElementsAt(0, aBuffer.Data(), aBuffer.Length(), fallible);
}
/* static */
bool PushUtil::CopyArrayBufferViewToArray(const ArrayBufferView& aView,
nsTArray<uint8_t>& aArray) {
MOZ_ASSERT(aArray.IsEmpty());
aView.ComputeState();
return aArray.SetCapacity(aView.Length(), fallible) &&
aArray.InsertElementsAt(0, aView.Data(), aView.Length(), fallible);
}
/* static */
bool PushUtil::CopyBufferSourceToArray(
const OwningArrayBufferViewOrArrayBuffer& aSource,
nsTArray<uint8_t>& aArray) {
if (aSource.IsArrayBuffer()) {
return CopyArrayBufferToArray(aSource.GetAsArrayBuffer(), aArray);
}
if (aSource.IsArrayBufferView()) {
return CopyArrayBufferViewToArray(aSource.GetAsArrayBufferView(), aArray);
}
MOZ_CRASH("Uninitialized union: expected buffer or view");
}
/* static */
void PushUtil::CopyArrayToArrayBuffer(JSContext* aCx,
const nsTArray<uint8_t>& aArray,
JS::MutableHandle<JSObject*> aValue,
ErrorResult& aRv) {
if (aArray.IsEmpty()) {
aValue.set(nullptr);
return;
}
JS::Rooted<JSObject*> buffer(
aCx, ArrayBuffer::Create(aCx, aArray.Length(), aArray.Elements()));
if (NS_WARN_IF(!buffer)) {
aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
return;
}
aValue.set(buffer);
}
} // namespace dom
} // namespace mozilla
|
