Line data    Source code

       1             : /* This Source Code Form is subject to the terms of the Mozilla Public
       2             :  * License, v. 2.0. If a copy of the MPL was not distributed with this
       3             :  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
       4             : 
       5             : #include "mozilla/dom/PushUtil.h"
       6             : 
       7             : namespace mozilla {
       8             : namespace dom {
       9             : 
      10             : /* static */ bool
      11           0 : PushUtil::CopyArrayBufferToArray(const ArrayBuffer& aBuffer,
      12             :                                  nsTArray<uint8_t>& aArray)
      13             : {
      14           0 :   MOZ_ASSERT(aArray.IsEmpty());
      15           0 :   aBuffer.ComputeLengthAndData();
      16           0 :   return aArray.SetCapacity(aBuffer.Length(), fallible) &&
      17           0 :          aArray.InsertElementsAt(0, aBuffer.Data(), aBuffer.Length(), fallible);
      18             : }
      19             : 
      20             : /* static */ bool
      21           0 : PushUtil::CopyArrayBufferViewToArray(const ArrayBufferView& aView,
      22             :                                      nsTArray<uint8_t>& aArray)
      23             : {
      24           0 :   MOZ_ASSERT(aArray.IsEmpty());
      25           0 :   aView.ComputeLengthAndData();
      26           0 :   return aArray.SetCapacity(aView.Length(), fallible) &&
      27           0 :          aArray.InsertElementsAt(0, aView.Data(), aView.Length(), fallible);
      28             : }
      29             : 
      30             : /* static */ bool
      31           0 : PushUtil::CopyBufferSourceToArray(
      32             :   const OwningArrayBufferViewOrArrayBuffer& aSource, nsTArray<uint8_t>& aArray)
      33             : {
      34           0 :   if (aSource.IsArrayBuffer()) {
      35           0 :     return CopyArrayBufferToArray(aSource.GetAsArrayBuffer(), aArray);
      36             :   }
      37           0 :   if (aSource.IsArrayBufferView()) {
      38           0 :     return CopyArrayBufferViewToArray(aSource.GetAsArrayBufferView(), aArray);
      39             :   }
      40           0 :   MOZ_CRASH("Uninitialized union: expected buffer or view");
      41             : }
      42             : 
      43             : /* static */ void
      44           0 : PushUtil::CopyArrayToArrayBuffer(JSContext* aCx,
      45             :                                  const nsTArray<uint8_t>& aArray,
      46             :                                  JS::MutableHandle<JSObject*> aValue,
      47             :                                  ErrorResult& aRv)
      48             : {
      49           0 :   if (aArray.IsEmpty()) {
      50           0 :     aValue.set(nullptr);
      51           0 :     return;
      52             :   }
      53           0 :   JS::Rooted<JSObject*> buffer(aCx, ArrayBuffer::Create(aCx,
      54           0 :                                                         aArray.Length(),
      55           0 :                                                         aArray.Elements()));
      56           0 :   if (NS_WARN_IF(!buffer)) {
      57           0 :     aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
      58           0 :     return;
      59             :   }
      60           0 :   aValue.set(buffer);
      61             : }
      62             : 
      63             : } // namespace dom
      64             : } // namespace mozilla