Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 174 insertions, 0 deletions

diff --git a/dom/permission/PermissionStatus.cpp b/dom/permission/PermissionStatus.cpp
new file mode 100644
index 0000000000..fd3d2ebcac
--- /dev/null
+++ b/dom/permission/PermissionStatus.cpp
@@ -0,0 +1,174 @@
+/* -*- 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/PermissionStatus.h"
+#include "mozilla/PermissionDelegateHandler.h"
+
+#include "mozilla/AsyncEventDispatcher.h"
+#include "mozilla/Permission.h"
+#include "mozilla/Services.h"
+#include "nsIPermissionManager.h"
+#include "PermissionObserver.h"
+#include "PermissionUtils.h"
+
+namespace mozilla::dom {
+
+PermissionStatus::PermissionStatus(nsPIDOMWindowInner* aWindow,
+                                   PermissionName aName)
+    : DOMEventTargetHelper(aWindow),
+      mName(aName),
+      mState(PermissionState::Denied) {
+  KeepAliveIfHasListenersFor(nsGkAtoms::onchange);
+}
+
+// https://w3c.github.io/permissions/#onchange-attribute and
+// https://w3c.github.io/permissions/#query-method
+RefPtr<PermissionStatus::SimplePromise> PermissionStatus::Init() {
+  // Covers the onchange part
+  // Whenever the user agent is aware that the state of a PermissionStatus
+  // instance status has changed: ...
+  // (The observer calls PermissionChanged() to do the steps)
+  mObserver = PermissionObserver::GetInstance();
+  if (NS_WARN_IF(!mObserver)) {
+    return SimplePromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  mObserver->AddSink(this);
+
+  // Covers the query part (Step 8.2 - 8.4)
+  return UpdateState();
+}
+
+PermissionStatus::~PermissionStatus() {
+  if (mObserver) {
+    mObserver->RemoveSink(this);
+  }
+}
+
+JSObject* PermissionStatus::WrapObject(JSContext* aCx,
+                                       JS::Handle<JSObject*> aGivenProto) {
+  return PermissionStatus_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+nsLiteralCString PermissionStatus::GetPermissionType() const {
+  return PermissionNameToType(mName);
+}
+
+// Covers the calling part of "permission query algorithm" of query() method and
+// update steps, which calls
+// https://w3c.github.io/permissions/#dfn-default-permission-query-algorithm
+// and then https://w3c.github.io/permissions/#dfn-permission-state
+RefPtr<PermissionStatus::SimplePromise> PermissionStatus::UpdateState() {
+  // Step 1: If settings wasn't passed, set it to the current settings object.
+  // Step 2: If settings is a non-secure context, return "denied".
+  // XXX(krosylight): No such steps here, and no WPT coverage?
+
+  // The permission handler covers the rest of the steps, although the model
+  // does not exactly match what the spec has. (Not passing "permission key" for
+  // example)
+
+  nsCOMPtr<nsPIDOMWindowInner> window = GetOwner();
+  if (NS_WARN_IF(!window)) {
+    return SimplePromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  RefPtr<Document> document = window->GetExtantDoc();
+  if (NS_WARN_IF(!document)) {
+    return SimplePromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  uint32_t action = nsIPermissionManager::DENY_ACTION;
+
+  PermissionDelegateHandler* permissionHandler =
+      document->GetPermissionDelegateHandler();
+  if (NS_WARN_IF(!permissionHandler)) {
+    return SimplePromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  nsresult rv = permissionHandler->GetPermissionForPermissionsAPI(
+      GetPermissionType(), &action);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return SimplePromise::CreateAndReject(rv, __func__);
+  }
+
+  mState = ActionToPermissionState(action);
+  return SimplePromise::CreateAndResolve(NS_OK, __func__);
+}
+
+bool PermissionStatus::MaybeUpdatedBy(nsIPermission* aPermission) const {
+  NS_ENSURE_TRUE(aPermission, false);
+  nsCOMPtr<nsPIDOMWindowInner> window = GetOwner();
+  if (NS_WARN_IF(!window)) {
+    return false;
+  }
+
+  Document* doc = window->GetExtantDoc();
+  if (NS_WARN_IF(!doc)) {
+    return false;
+  }
+
+  nsCOMPtr<nsIPrincipal> principal =
+      Permission::ClonePrincipalForPermission(doc->NodePrincipal());
+  NS_ENSURE_TRUE(principal, false);
+  nsCOMPtr<nsIPrincipal> permissionPrincipal;
+  aPermission->GetPrincipal(getter_AddRefs(permissionPrincipal));
+  if (!permissionPrincipal) {
+    return false;
+  }
+  return permissionPrincipal->Equals(principal);
+}
+
+bool PermissionStatus::MaybeUpdatedByNotifyOnly(
+    nsPIDOMWindowInner* aInnerWindow) const {
+  return false;
+}
+
+// https://w3c.github.io/permissions/#dfn-permissionstatus-update-steps
+void PermissionStatus::PermissionChanged() {
+  auto oldState = mState;
+  RefPtr<PermissionStatus> self(this);
+  // Step 1: If this's relevant global object is a Window object, then:
+  // Step 1.1: Let document be status's relevant global object's associated
+  // Document.
+  // Step 1.2: If document is null or document is not fully active,
+  // terminate this algorithm.
+  // TODO(krosylight): WPT /permissions/non-fully-active.https.html fails
+  // because we don't do this. See bug 1876470.
+
+  // Step 2 - 3 is covered by UpdateState()
+  UpdateState()->Then(
+      GetMainThreadSerialEventTarget(), __func__,
+      [self, oldState]() {
+        if (self->mState != oldState) {
+          // Step 4: Queue a task on the permissions task source to fire an
+          // event named change at status.
+          RefPtr<AsyncEventDispatcher> eventDispatcher =
+              new AsyncEventDispatcher(self.get(), u"change"_ns,
+                                       CanBubble::eNo);
+          eventDispatcher->PostDOMEvent();
+        }
+      },
+      []() {
+
+      });
+}
+
+void PermissionStatus::DisconnectFromOwner() {
+  IgnoreKeepAliveIfHasListenersFor(nsGkAtoms::onchange);
+
+  if (mObserver) {
+    mObserver->RemoveSink(this);
+    mObserver = nullptr;
+  }
+
+  DOMEventTargetHelper::DisconnectFromOwner();
+}
+
+void PermissionStatus::GetType(nsACString& aName) const {
+  aName.Assign(GetPermissionType());
+}
+
+}  // namespace mozilla::dom