Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 66 insertions, 0 deletions

diff --git a/dom/base/AutoSuppressEventHandlingAndSuspend.h b/dom/base/AutoSuppressEventHandlingAndSuspend.h
new file mode 100644
index 0000000000..6f23fce475
--- /dev/null
+++ b/dom/base/AutoSuppressEventHandlingAndSuspend.h
@@ -0,0 +1,66 @@
+/* -*- 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 dom_base_AutoSuppressEventHandlingAndSuspend_h
+#define dom_base_AutoSuppressEventHandlingAndSuspend_h
+
+#include "mozilla/dom/BrowsingContext.h"
+#include "mozilla/dom/BrowsingContextGroup.h"
+#include "mozilla/dom/Document.h"
+#include "nsCOMPtr.h"
+#include "nsPIDOMWindow.h"
+#include "nsTArray.h"
+
+namespace mozilla::dom {
+
+/**
+ * Suppresses event handling and suspends for all in-process documents in a
+ * BrowsingContext subtree.
+ */
+class MOZ_RAII AutoSuppressEventHandling : public AutoWalkBrowsingContextGroup {
+ public:
+  AutoSuppressEventHandling() = default;
+
+  explicit AutoSuppressEventHandling(BrowsingContext* aContext) {
+    if (aContext) {
+      SuppressBrowsingContext(aContext);
+    }
+  }
+
+  ~AutoSuppressEventHandling();
+
+ protected:
+  virtual void SuppressDocument(Document* aDocument) override;
+  void UnsuppressDocument(Document* aDocument) override;
+};
+
+/**
+ * Suppresses event handling and suspends the active inner window for all
+ * in-process documents in a BrowsingContextGroup. This should be used while
+ * spinning the event loop for a synchronous operation (like `window.open()`)
+ * which affects operations in any other window in the same BrowsingContext
+ * group.
+ */
+class MOZ_RAII AutoSuppressEventHandlingAndSuspend
+    : private AutoSuppressEventHandling {
+ public:
+  explicit AutoSuppressEventHandlingAndSuspend(BrowsingContextGroup* aGroup) {
+    if (aGroup) {
+      SuppressBrowsingContextGroup(aGroup);
+    }
+  }
+
+  ~AutoSuppressEventHandlingAndSuspend();
+
+ protected:
+  void SuppressDocument(Document* aDocument) override;
+
+ private:
+  AutoTArray<nsCOMPtr<nsPIDOMWindowInner>, 16> mWindows;
+};
+}  // namespace mozilla::dom
+
+#endif