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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /dom/events/EventTarget.cpp
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/events/EventTarget.cpp')
-rw-r--r--dom/events/EventTarget.cpp270
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