import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/media/eme/MediaKeyStatusMap.cpp

@@ -0,0 +1,121 @@
+/* -*- 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/MediaKeyStatusMap.h"
+#include "nsPIDOMWindow.h"
+#include "mozilla/dom/UnionTypes.h"
+#include "mozilla/dom/ToJSValue.h"
+#include "mozilla/EMEUtils.h"
+
+namespace mozilla {
+namespace dom {
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(MediaKeyStatusMap)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(MediaKeyStatusMap)
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MediaKeyStatusMap)
+  NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+  NS_INTERFACE_MAP_ENTRY(nsISupports)
+NS_INTERFACE_MAP_END
+NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(MediaKeyStatusMap, mParent)
+
+MediaKeyStatusMap::MediaKeyStatusMap(nsPIDOMWindowInner* aParent)
+  : mParent(aParent)
+{
+}
+
+MediaKeyStatusMap::~MediaKeyStatusMap()
+{
+}
+
+JSObject*
+MediaKeyStatusMap::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+  return MediaKeyStatusMapBinding::Wrap(aCx, this, aGivenProto);
+}
+
+nsPIDOMWindowInner*
+MediaKeyStatusMap::GetParentObject() const
+{
+  return mParent;
+}
+
+void
+MediaKeyStatusMap::Get(JSContext* aCx,
+                       const ArrayBufferViewOrArrayBuffer& aKey,
+                       JS::MutableHandle<JS::Value> aOutValue,
+                       ErrorResult& aOutRv) const
+{
+  ArrayData keyId = GetArrayBufferViewOrArrayBufferData(aKey);
+  if (!keyId.IsValid()) {
+    aOutValue.setUndefined();
+    return;
+  }
+  for (const KeyStatus& status : mStatuses) {
+    if (keyId == status.mKeyId) {
+      bool ok = ToJSValue(aCx, status.mStatus, aOutValue);
+      if (!ok) {
+        aOutRv.NoteJSContextException(aCx);
+      }
+      return;
+    }
+  }
+  aOutValue.setUndefined();
+}
+
+bool
+MediaKeyStatusMap::Has(const ArrayBufferViewOrArrayBuffer& aKey) const
+{
+  ArrayData keyId = GetArrayBufferViewOrArrayBufferData(aKey);
+  if (!keyId.IsValid()) {
+    return false;
+  }
+
+  for (const KeyStatus& status : mStatuses) {
+    if (keyId == status.mKeyId) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+uint32_t
+MediaKeyStatusMap::GetIterableLength() const
+{
+  return mStatuses.Length();
+}
+
+TypedArrayCreator<ArrayBuffer>
+MediaKeyStatusMap::GetKeyAtIndex(uint32_t aIndex) const
+{
+  MOZ_ASSERT(aIndex < GetIterableLength());
+  return TypedArrayCreator<ArrayBuffer>(mStatuses[aIndex].mKeyId);
+}
+
+MediaKeyStatus
+MediaKeyStatusMap::GetValueAtIndex(uint32_t aIndex) const
+{
+  MOZ_ASSERT(aIndex < GetIterableLength());
+  return mStatuses[aIndex].mStatus;
+}
+
+uint32_t
+MediaKeyStatusMap::Size() const
+{
+  return mStatuses.Length();
+}
+
+void
+MediaKeyStatusMap::Update(const nsTArray<CDMCaps::KeyStatus>& aKeys)
+{
+  mStatuses.Clear();
+  for (const auto& key : aKeys) {
+    mStatuses.InsertElementSorted(KeyStatus(key.mId, key.mStatus));
+  }
+}
+
+} // namespace dom
+} // namespace mozilla