1 files changed, 72 insertions, 0 deletions
diff --git a/dom/permission/StorageAccessPermissionStatus.cpp b/dom/permission/StorageAccessPermissionStatus.cpp
new file mode 100644
index 0000000000..fc39e1440e
--- /dev/null
+++ b/dom/permission/StorageAccessPermissionStatus.cpp
@@ -0,0 +1,72 @@
+/* -*- 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/StorageAccessPermissionStatus.h"
+
+#include "mozilla/AntiTrackingUtils.h"
+#include "mozilla/dom/WindowGlobalChild.h"
+#include "mozilla/dom/BrowsingContext.h"
+#include "mozilla/dom/FeaturePolicyUtils.h"
+#include "mozilla/dom/PermissionStatus.h"
+#include "mozilla/dom/PermissionStatusBinding.h"
+#include "nsIPermissionManager.h"
+
+namespace mozilla::dom {
+
+StorageAccessPermissionStatus::StorageAccessPermissionStatus(
+    nsPIDOMWindowInner* aWindow)
+    : PermissionStatus(aWindow, PermissionName::Storage_access) {}
+
+RefPtr<PermissionStatus::SimplePromise>
+StorageAccessPermissionStatus::UpdateState() {
+  nsCOMPtr<nsPIDOMWindowInner> window = GetOwner();
+  if (NS_WARN_IF(!window)) {
+    return SimplePromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  WindowGlobalChild* wgc = window->GetWindowGlobalChild();
+  if (NS_WARN_IF(!wgc)) {
+    return SimplePromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  // Perform a Permission Policy Request
+  if (!FeaturePolicyUtils::IsFeatureAllowed(window->GetExtantDoc(),
+                                            u"storage-access"_ns)) {
+    mState = PermissionState::Prompt;
+    return SimplePromise::CreateAndResolve(NS_OK, __func__);
+  }
+
+  RefPtr<StorageAccessPermissionStatus> self(this);
+  return wgc->SendGetStorageAccessPermission()->Then(
+      GetMainThreadSerialEventTarget(), __func__,
+      [self](uint32_t aAction) {
+        if (aAction == nsIPermissionManager::ALLOW_ACTION) {
+          self->mState = PermissionState::Granted;
+        } else {
+          // We never reveal PermissionState::Denied here
+          self->mState = PermissionState::Prompt;
+        }
+        return SimplePromise::CreateAndResolve(NS_OK, __func__);
+      },
+      [](mozilla::ipc::ResponseRejectReason aError) {
+        return SimplePromise::CreateAndResolve(NS_ERROR_FAILURE, __func__);
+      });
+}
+
+bool StorageAccessPermissionStatus::MaybeUpdatedBy(
+    nsIPermission* aPermission) const {
+  return false;
+}
+
+bool StorageAccessPermissionStatus::MaybeUpdatedByNotifyOnly(
+    nsPIDOMWindowInner* aInnerWindow) const {
+  nsPIDOMWindowInner* owner = GetOwner();
+  NS_ENSURE_TRUE(owner, false);
+  NS_ENSURE_TRUE(aInnerWindow, false);
+  return owner->WindowID() == aInnerWindow->WindowID();
+}
+
+}  // namespace mozilla::dom