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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/base/WindowProxyHolder.h
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/base/WindowProxyHolder.h')
-rw-r--r--dom/base/WindowProxyHolder.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/dom/base/WindowProxyHolder.h b/dom/base/WindowProxyHolder.h
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+/* -*- 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/. */
+
+#ifndef mozilla_dom_WindowProxyHolder_h__
+#define mozilla_dom_WindowProxyHolder_h__
+
+#include "mozilla/dom/BrowsingContext.h"
+
+struct JSContext;
+class JSObject;
+
+namespace JS {
+template <typename T>
+class MutableHandle;
+} // namespace JS
+
+namespace mozilla::dom {
+
+/**
+ * This class is used for passing arguments and the return value for WebIDL
+ * binding code that takes/returns a WindowProxy object and for WebIDL
+ * unions/dictionaries that contain a WindowProxy member. It should never
+ * contain null; if the value in WebIDL is nullable the binding code will use a
+ * Nullable<WindowProxyHolder>.
+ */
+class WindowProxyHolder {
+ public:
+ WindowProxyHolder() = default;
+ explicit WindowProxyHolder(BrowsingContext* aBC) : mBrowsingContext(aBC) {
+ MOZ_ASSERT(mBrowsingContext, "Don't set WindowProxyHolder to null.");
+ }
+ explicit WindowProxyHolder(RefPtr<BrowsingContext>&& aBC)
+ : mBrowsingContext(std::move(aBC)) {
+ MOZ_ASSERT(mBrowsingContext, "Don't set WindowProxyHolder to null.");
+ }
+ WindowProxyHolder& operator=(BrowsingContext* aBC) {
+ mBrowsingContext = aBC;
+ MOZ_ASSERT(mBrowsingContext, "Don't set WindowProxyHolder to null.");
+ return *this;
+ }
+ WindowProxyHolder& operator=(RefPtr<BrowsingContext>&& aBC) {
+ mBrowsingContext = std::move(aBC);
+ MOZ_ASSERT(mBrowsingContext, "Don't set WindowProxyHolder to null.");
+ return *this;
+ }
+
+ BrowsingContext* get() const {
+ MOZ_ASSERT(mBrowsingContext, "WindowProxyHolder hasn't been initialized.");
+ return mBrowsingContext;
+ }
+
+ private:
+ friend void ImplCycleCollectionUnlink(WindowProxyHolder& aProxy);
+
+ RefPtr<BrowsingContext> mBrowsingContext;
+};
+
+inline void ImplCycleCollectionTraverse(
+ nsCycleCollectionTraversalCallback& aCallback, WindowProxyHolder& aProxy,
+ const char* aName, uint32_t aFlags = 0) {
+ CycleCollectionNoteChild(aCallback, aProxy.get(), "mBrowsingContext", aFlags);
+}
+
+inline void ImplCycleCollectionUnlink(WindowProxyHolder& aProxy) {
+ aProxy.mBrowsingContext = nullptr;
+}
+
+extern bool GetRemoteOuterWindowProxy(JSContext* aCx, BrowsingContext* aContext,
+ JS::Handle<JSObject*> aTransplantTo,
+ JS::MutableHandle<JSObject*> aValue);
+
+} // namespace mozilla::dom
+
+#endif /* mozilla_dom_WindowProxyHolder_h__ */