Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 270 insertions, 0 deletions

diff --git a/dom/events/EventTarget.cpp b/dom/events/EventTarget.cpp
new file mode 100644
index 0000000000..20ec7c41be
--- /dev/null
+++ b/dom/events/EventTarget.cpp
@@ -0,0 +1,270 @@
+/* -*- 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/EventListenerManager.h"
+#include "mozilla/dom/EventTarget.h"
+#include "mozilla/dom/EventTargetBinding.h"
+#include "mozilla/dom/ConstructibleEventTarget.h"
+#include "mozilla/dom/Nullable.h"
+#include "mozilla/dom/WindowProxyHolder.h"
+#include "nsGlobalWindowInner.h"
+#include "nsGlobalWindowOuter.h"
+#include "nsIGlobalObject.h"
+#include "nsPIDOMWindow.h"
+#include "nsThreadUtils.h"
+
+namespace mozilla::dom {
+
+#ifndef NS_BUILD_REFCNT_LOGGING
+MozExternalRefCountType EventTarget::NonVirtualAddRef() {
+  return mRefCnt.incr(this);
+}
+
+MozExternalRefCountType EventTarget::NonVirtualRelease() {
+  if (mRefCnt.get() == 1) {
+    return Release();
+  }
+  return mRefCnt.decr(this);
+}
+#endif
+
+NS_IMETHODIMP_(MozExternalRefCountType) EventTarget::AddRef() {
+  MOZ_ASSERT_UNREACHABLE("EventTarget::AddRef should not be called");
+  return 0;
+}
+
+NS_IMETHODIMP_(MozExternalRefCountType) EventTarget::Release() {
+  MOZ_ASSERT_UNREACHABLE("EventTarget::Release should not be called");
+  return 0;
+}
+
+NS_IMETHODIMP EventTarget::QueryInterface(REFNSIID aIID, void** aInstancePtr) {
+  MOZ_ASSERT_UNREACHABLE("EventTarget::QueryInterface should not be called");
+  *aInstancePtr = nullptr;
+  return NS_ERROR_FAILURE;
+}
+
+NS_IMETHODIMP_(void) EventTarget::DeleteCycleCollectable() {
+  MOZ_ASSERT_UNREACHABLE(
+      "EventTarget::DeleteCycleCollectable should not be called");
+}
+
+/* static */
+already_AddRefed<EventTarget> EventTarget::Constructor(
+    const GlobalObject& aGlobal, ErrorResult& aRv) {
+  nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
+  if (!global) {
+    aRv.Throw(NS_ERROR_UNEXPECTED);
+    return nullptr;
+  }
+  RefPtr<EventTarget> target = new ConstructibleEventTarget(global);
+  return target.forget();
+}
+
+bool EventTarget::ComputeWantsUntrusted(
+    const Nullable<bool>& aWantsUntrusted,
+    const AddEventListenerOptionsOrBoolean* aOptions, ErrorResult& aRv) {
+  if (aOptions && aOptions->IsAddEventListenerOptions()) {
+    const auto& options = aOptions->GetAsAddEventListenerOptions();
+    if (options.mWantUntrusted.WasPassed()) {
+      return options.mWantUntrusted.Value();
+    }
+  }
+
+  if (!aWantsUntrusted.IsNull()) {
+    return aWantsUntrusted.Value();
+  }
+
+  bool defaultWantsUntrusted = ComputeDefaultWantsUntrusted(aRv);
+  if (aRv.Failed()) {
+    return false;
+  }
+
+  return defaultWantsUntrusted;
+}
+
+void EventTarget::AddEventListener(
+    const nsAString& aType, EventListener* aCallback,
+    const AddEventListenerOptionsOrBoolean& aOptions,
+    const Nullable<bool>& aWantsUntrusted, ErrorResult& aRv) {
+  bool wantsUntrusted = ComputeWantsUntrusted(aWantsUntrusted, &aOptions, aRv);
+  if (aRv.Failed()) {
+    return;
+  }
+
+  EventListenerManager* elm = GetOrCreateListenerManager();
+  if (!elm) {
+    aRv.Throw(NS_ERROR_UNEXPECTED);
+    return;
+  }
+
+  elm->AddEventListener(aType, aCallback, aOptions, wantsUntrusted);
+}
+
+nsresult EventTarget::AddEventListener(const nsAString& aType,
+                                       nsIDOMEventListener* aListener,
+                                       bool aUseCapture,
+                                       const Nullable<bool>& aWantsUntrusted) {
+  ErrorResult rv;
+  bool wantsUntrusted = ComputeWantsUntrusted(aWantsUntrusted, nullptr, rv);
+  if (rv.Failed()) {
+    return rv.StealNSResult();
+  }
+
+  EventListenerManager* elm = GetOrCreateListenerManager();
+  NS_ENSURE_STATE(elm);
+  elm->AddEventListener(aType, aListener, aUseCapture, wantsUntrusted);
+  return NS_OK;
+}
+
+void EventTarget::RemoveEventListener(
+    const nsAString& aType, EventListener* aListener,
+    const EventListenerOptionsOrBoolean& aOptions, ErrorResult& aRv) {
+  EventListenerManager* elm = GetExistingListenerManager();
+  if (elm) {
+    elm->RemoveEventListener(aType, aListener, aOptions);
+  }
+}
+
+void EventTarget::RemoveEventListener(const nsAString& aType,
+                                      nsIDOMEventListener* aListener,
+                                      bool aUseCapture) {
+  EventListenerManager* elm = GetExistingListenerManager();
+  if (elm) {
+    elm->RemoveEventListener(aType, aListener, aUseCapture);
+  }
+}
+
+nsresult EventTarget::AddSystemEventListener(
+    const nsAString& aType, nsIDOMEventListener* aListener, bool aUseCapture,
+    const Nullable<bool>& aWantsUntrusted) {
+  ErrorResult rv;
+  bool wantsUntrusted = ComputeWantsUntrusted(aWantsUntrusted, nullptr, rv);
+  if (rv.Failed()) {
+    return rv.StealNSResult();
+  }
+
+  EventListenerManager* elm = GetOrCreateListenerManager();
+  NS_ENSURE_STATE(elm);
+
+  EventListenerFlags flags;
+  flags.mInSystemGroup = true;
+  flags.mCapture = aUseCapture;
+  flags.mAllowUntrustedEvents = wantsUntrusted;
+  elm->AddEventListenerByType(aListener, aType, flags);
+  return NS_OK;
+}
+
+void EventTarget::RemoveSystemEventListener(const nsAString& aType,
+                                            nsIDOMEventListener* aListener,
+                                            bool aUseCapture) {
+  EventListenerManager* elm = GetExistingListenerManager();
+  if (elm) {
+    EventListenerFlags flags;
+    flags.mInSystemGroup = true;
+    flags.mCapture = aUseCapture;
+    elm->RemoveEventListenerByType(aListener, aType, flags);
+  }
+}
+
+EventHandlerNonNull* EventTarget::GetEventHandler(nsAtom* aType) {
+  EventListenerManager* elm = GetExistingListenerManager();
+  return elm ? elm->GetEventHandler(aType) : nullptr;
+}
+
+void EventTarget::SetEventHandler(const nsAString& aType,
+                                  EventHandlerNonNull* aHandler,
+                                  ErrorResult& aRv) {
+  if (!StringBeginsWith(aType, u"on"_ns)) {
+    aRv.Throw(NS_ERROR_INVALID_ARG);
+    return;
+  }
+  RefPtr<nsAtom> type = NS_Atomize(aType);
+  SetEventHandler(type, aHandler);
+}
+
+void EventTarget::SetEventHandler(nsAtom* aType,
+                                  EventHandlerNonNull* aHandler) {
+  GetOrCreateListenerManager()->SetEventHandler(aType, aHandler);
+}
+
+bool EventTarget::HasNonSystemGroupListenersForUntrustedKeyEvents() const {
+  EventListenerManager* elm = GetExistingListenerManager();
+  return elm && elm->HasNonSystemGroupListenersForUntrustedKeyEvents();
+}
+
+bool EventTarget::HasNonPassiveNonSystemGroupListenersForUntrustedKeyEvents()
+    const {
+  EventListenerManager* elm = GetExistingListenerManager();
+  return elm &&
+         elm->HasNonPassiveNonSystemGroupListenersForUntrustedKeyEvents();
+}
+
+bool EventTarget::IsApzAware() const {
+  EventListenerManager* elm = GetExistingListenerManager();
+  return elm && elm->HasApzAwareListeners();
+}
+
+void EventTarget::DispatchEvent(Event& aEvent) {
+  // The caller type doesn't really matter if we don't care about the
+  // return value, but let's be safe and pass NonSystem.
+  Unused << DispatchEvent(aEvent, CallerType::NonSystem, IgnoreErrors());
+}
+
+void EventTarget::DispatchEvent(Event& aEvent, ErrorResult& aRv) {
+  // The caller type doesn't really matter if we don't care about the
+  // return value, but let's be safe and pass NonSystem.
+  Unused << DispatchEvent(aEvent, CallerType::NonSystem, IgnoreErrors());
+}
+
+Nullable<WindowProxyHolder> EventTarget::GetOwnerGlobalForBindings() {
+  nsPIDOMWindowOuter* win = GetOwnerGlobalForBindingsInternal();
+  if (!win) {
+    return nullptr;
+  }
+
+  return WindowProxyHolder(win->GetBrowsingContext());
+}
+
+nsPIDOMWindowInner* EventTarget::GetAsInnerWindow() {
+  return IsInnerWindow() ? static_cast<nsGlobalWindowInner*>(this) : nullptr;
+}
+
+const nsPIDOMWindowInner* EventTarget::GetAsInnerWindow() const {
+  return IsInnerWindow() ? static_cast<const nsGlobalWindowInner*>(this)
+                         : nullptr;
+}
+
+nsPIDOMWindowOuter* EventTarget::GetAsOuterWindow() {
+  return IsOuterWindow() ? static_cast<nsGlobalWindowOuter*>(this) : nullptr;
+}
+
+const nsPIDOMWindowOuter* EventTarget::GetAsOuterWindow() const {
+  return IsOuterWindow() ? static_cast<const nsGlobalWindowOuter*>(this)
+                         : nullptr;
+}
+
+nsPIDOMWindowInner* EventTarget::AsInnerWindow() {
+  MOZ_DIAGNOSTIC_ASSERT(IsInnerWindow());
+  return static_cast<nsGlobalWindowInner*>(this);
+}
+
+const nsPIDOMWindowInner* EventTarget::AsInnerWindow() const {
+  MOZ_DIAGNOSTIC_ASSERT(IsInnerWindow());
+  return static_cast<const nsGlobalWindowInner*>(this);
+}
+
+nsPIDOMWindowOuter* EventTarget::AsOuterWindow() {
+  MOZ_DIAGNOSTIC_ASSERT(IsOuterWindow());
+  return static_cast<nsGlobalWindowOuter*>(this);
+}
+
+const nsPIDOMWindowOuter* EventTarget::AsOuterWindow() const {
+  MOZ_DIAGNOSTIC_ASSERT(IsOuterWindow());
+  return static_cast<const nsGlobalWindowOuter*>(this);
+}
+
+}  // namespace mozilla::dom