1 files changed, 96 insertions, 0 deletions
diff --git a/dom/base/nsPIWindowRoot.h b/dom/base/nsPIWindowRoot.h
new file mode 100644
index 0000000000..fe4a0df484
--- /dev/null
+++ b/dom/base/nsPIWindowRoot.h
@@ -0,0 +1,96 @@
+/* -*- 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 nsPIWindowRoot_h__
+#define nsPIWindowRoot_h__
+
+#include "nsISupports.h"
+#include "mozilla/dom/EventTarget.h"
+
+class nsPIDOMWindowOuter;
+class nsIControllers;
+class nsIController;
+class nsINode;
+class nsIRemoteTab;
+
+#define NS_IWINDOWROOT_IID                           \
+  {                                                  \
+    0xb8724c49, 0xc398, 0x4f9b, {                    \
+      0x82, 0x59, 0x87, 0x27, 0xa6, 0x47, 0xdd, 0x0f \
+    }                                                \
+  }
+
+class nsPIWindowRoot : public mozilla::dom::EventTarget {
+ public:
+  NS_DECLARE_STATIC_IID_ACCESSOR(NS_IWINDOWROOT_IID)
+
+  bool IsRootWindow() const final { return true; }
+
+  NS_IMPL_FROMEVENTTARGET_HELPER(nsPIWindowRoot, IsRootWindow())
+
+  virtual nsPIDOMWindowOuter* GetWindow() = 0;
+
+  // get and set the node that is the context of a popup menu
+  virtual already_AddRefed<nsINode> GetPopupNode() = 0;
+  virtual void SetPopupNode(nsINode* aNode) = 0;
+
+  /**
+   * @param aForVisibleWindow   true if caller needs controller which is
+   *                            associated with visible window.
+   */
+  virtual nsresult GetControllerForCommand(const char* aCommand,
+                                           bool aForVisibleWindow,
+                                           nsIController** aResult) = 0;
+
+  /**
+   * @param aForVisibleWindow   true if caller needs controllers which are
+   *                            associated with visible window.
+   */
+  virtual nsresult GetControllers(bool aForVisibleWindow,
+                                  nsIControllers** aResult) = 0;
+
+  virtual void GetEnabledDisabledCommands(
+      nsTArray<nsCString>& aEnabledCommands,
+      nsTArray<nsCString>& aDisabledCommands) = 0;
+
+  virtual void SetParentTarget(mozilla::dom::EventTarget* aTarget) = 0;
+  virtual mozilla::dom::EventTarget* GetParentTarget() = 0;
+
+  // Stores a weak reference to the browser.
+  virtual void AddBrowser(nsIRemoteTab* aBrowser) = 0;
+  virtual void RemoveBrowser(nsIRemoteTab* aBrowser) = 0;
+
+  using BrowserEnumerator = void (*)(nsIRemoteTab* aTab, void* aArg);
+
+  // Enumerate all stored browsers that for which the weak reference is valid.
+  virtual void EnumerateBrowsers(BrowserEnumerator aEnumFunc, void* aArg) = 0;
+};
+
+namespace mozilla::dom {
+
+inline nsPIWindowRoot* EventTarget::GetAsWindowRoot() {
+  return IsRootWindow() ? static_cast<nsPIWindowRoot*>(this) : nullptr;
+}
+
+inline const nsPIWindowRoot* EventTarget::GetAsWindowRoot() const {
+  return IsRootWindow() ? static_cast<const nsPIWindowRoot*>(this) : nullptr;
+}
+
+inline nsPIWindowRoot* EventTarget::AsWindowRoot() {
+  MOZ_DIAGNOSTIC_ASSERT(IsRootWindow());
+  return static_cast<nsPIWindowRoot*>(this);
+}
+
+inline const nsPIWindowRoot* EventTarget::AsWindowRoot() const {
+  MOZ_DIAGNOSTIC_ASSERT(IsRootWindow());
+  return static_cast<const nsPIWindowRoot*>(this);
+}
+
+}  // namespace mozilla::dom
+
+NS_DEFINE_STATIC_IID_ACCESSOR(nsPIWindowRoot, NS_IWINDOWROOT_IID)
+
+#endif  // nsPIWindowRoot_h__