Adding upstream version 124.0.1.upstream/124.0.1

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

1 files changed, 664 insertions, 0 deletions

diff --git a/xpfe/appshell/nsContentTreeOwner.cpp b/xpfe/appshell/nsContentTreeOwner.cpp
new file mode 100644
index 0000000000..72fa807bba
--- /dev/null
+++ b/xpfe/appshell/nsContentTreeOwner.cpp
@@ -0,0 +1,664 @@
+/* -*- Mode: C++; tab-width: 3; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=2 sw=2 et 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/. */
+
+// Local Includes
+#include "nsContentTreeOwner.h"
+#include "AppWindow.h"
+
+// Interfaces needed to be included
+#include "nsGlobalWindowOuter.h"
+#include "nsIDOMWindow.h"
+#include "nsIBrowserDOMWindow.h"
+#include "nsIOpenWindowInfo.h"
+#include "nsIPrompt.h"
+#include "nsIAuthPrompt.h"
+#include "nsIXULBrowserWindow.h"
+#include "nsIPrincipal.h"
+#include "nsIURIFixup.h"
+#include "nsIWebNavigation.h"
+#include "nsDocShellCID.h"
+#include "nsIMIMEInfo.h"
+#include "nsIWidget.h"
+#include "nsWindowWatcher.h"
+#include "nsIWindowMediator.h"
+#include "mozilla/Components.h"
+#include "mozilla/NullPrincipal.h"
+#include "nsDocShell.h"
+#include "nsDocShellLoadState.h"
+#include "nsQueryActor.h"
+
+#include "nsIScriptObjectPrincipal.h"
+#include "nsIURI.h"
+#include "mozilla/dom/Document.h"
+#if defined(XP_MACOSX)
+#  include "nsThreadUtils.h"
+#endif
+
+#include "mozilla/Preferences.h"
+#include "mozilla/Try.h"
+#include "mozilla/dom/Element.h"
+#include "mozilla/dom/ScriptSettings.h"
+#include "mozilla/dom/UserActivation.h"
+
+using namespace mozilla;
+
+//*****************************************************************************
+//***    nsContentTreeOwner: Object Management
+//*****************************************************************************
+
+nsContentTreeOwner::nsContentTreeOwner(bool fPrimary)
+    : mAppWindow(nullptr), mPrimary(fPrimary) {}
+
+//*****************************************************************************
+// nsContentTreeOwner::nsISupports
+//*****************************************************************************
+
+NS_IMPL_ADDREF(nsContentTreeOwner)
+NS_IMPL_RELEASE(nsContentTreeOwner)
+
+NS_INTERFACE_MAP_BEGIN(nsContentTreeOwner)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDocShellTreeOwner)
+  NS_INTERFACE_MAP_ENTRY(nsIDocShellTreeOwner)
+  NS_INTERFACE_MAP_ENTRY(nsIBaseWindow)
+  NS_INTERFACE_MAP_ENTRY(nsIWebBrowserChrome)
+  NS_INTERFACE_MAP_ENTRY(nsIInterfaceRequestor)
+  NS_INTERFACE_MAP_ENTRY(nsIWindowProvider)
+NS_INTERFACE_MAP_END
+
+//*****************************************************************************
+// nsContentTreeOwner::nsIInterfaceRequestor
+//*****************************************************************************
+
+NS_IMETHODIMP nsContentTreeOwner::GetInterface(const nsIID& aIID,
+                                               void** aSink) {
+  NS_ENSURE_ARG_POINTER(aSink);
+  *aSink = nullptr;
+
+  if (aIID.Equals(NS_GET_IID(nsIPrompt))) {
+    NS_ENSURE_STATE(mAppWindow);
+    return mAppWindow->GetInterface(aIID, aSink);
+  }
+  if (aIID.Equals(NS_GET_IID(nsIAuthPrompt))) {
+    NS_ENSURE_STATE(mAppWindow);
+    return mAppWindow->GetInterface(aIID, aSink);
+  }
+  if (aIID.Equals(NS_GET_IID(nsIDocShellTreeItem))) {
+    NS_ENSURE_STATE(mAppWindow);
+    nsCOMPtr<nsIDocShell> shell;
+    mAppWindow->GetDocShell(getter_AddRefs(shell));
+    if (shell) return shell->QueryInterface(aIID, aSink);
+    return NS_ERROR_FAILURE;
+  }
+
+  if (aIID.Equals(NS_GET_IID(nsIDOMWindow)) ||
+      aIID.Equals(NS_GET_IID(nsPIDOMWindowOuter))) {
+    NS_ENSURE_STATE(mAppWindow);
+    nsCOMPtr<nsIDocShellTreeItem> shell;
+    mAppWindow->GetPrimaryContentShell(getter_AddRefs(shell));
+    if (shell) {
+      nsCOMPtr<nsIInterfaceRequestor> thing(do_QueryInterface(shell));
+      if (thing) return thing->GetInterface(aIID, aSink);
+    }
+    return NS_ERROR_FAILURE;
+  }
+
+  if (aIID.Equals(NS_GET_IID(nsIAppWindow))) {
+    NS_ENSURE_STATE(mAppWindow);
+    return mAppWindow->QueryInterface(aIID, aSink);
+  }
+
+  return QueryInterface(aIID, aSink);
+}
+
+//*****************************************************************************
+// nsContentTreeOwner::nsIDocShellTreeOwner
+//*****************************************************************************
+
+NS_IMETHODIMP
+nsContentTreeOwner::ContentShellAdded(nsIDocShellTreeItem* aContentShell,
+                                      bool aPrimary) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->ContentShellAdded(aContentShell, aPrimary);
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::ContentShellRemoved(nsIDocShellTreeItem* aContentShell) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->ContentShellRemoved(aContentShell);
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::GetPrimaryContentShell(nsIDocShellTreeItem** aShell) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetPrimaryContentShell(aShell);
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::RemoteTabAdded(nsIRemoteTab* aTab, bool aPrimary) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->RemoteTabAdded(aTab, aPrimary);
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::RemoteTabRemoved(nsIRemoteTab* aTab) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->RemoteTabRemoved(aTab);
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::GetPrimaryRemoteTab(nsIRemoteTab** aTab) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetPrimaryRemoteTab(aTab);
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::GetPrimaryContentBrowsingContext(
+    mozilla::dom::BrowsingContext** aBc) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetPrimaryContentBrowsingContext(aBc);
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::GetPrimaryContentSize(int32_t* aWidth, int32_t* aHeight) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetPrimaryContentSize(aWidth, aHeight);
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::SetPrimaryContentSize(int32_t aWidth, int32_t aHeight) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->SetPrimaryContentSize(aWidth, aHeight);
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::GetRootShellSize(int32_t* aWidth, int32_t* aHeight) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetRootShellSize(aWidth, aHeight);
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::SetRootShellSize(int32_t aWidth, int32_t aHeight) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->SetRootShellSize(aWidth, aHeight);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::SizeShellTo(nsIDocShellTreeItem* aShellItem,
+                                              int32_t aCX, int32_t aCY) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->SizeShellTo(aShellItem, aCX, aCY);
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::SetPersistence(bool aPersistPosition, bool aPersistSize,
+                                   bool aPersistSizeMode) {
+  NS_ENSURE_STATE(mAppWindow);
+  nsCOMPtr<dom::Element> docShellElement = mAppWindow->GetWindowDOMElement();
+  if (!docShellElement) return NS_ERROR_FAILURE;
+
+  nsAutoString persistString;
+  docShellElement->GetAttr(nsGkAtoms::persist, persistString);
+
+  bool saveString = false;
+  int32_t index;
+
+  // Set X
+  index = persistString.Find(u"screenX");
+  if (!aPersistPosition && index >= 0) {
+    persistString.Cut(index, 7);
+    saveString = true;
+  } else if (aPersistPosition && index < 0) {
+    persistString.AppendLiteral(" screenX");
+    saveString = true;
+  }
+  // Set Y
+  index = persistString.Find(u"screenY");
+  if (!aPersistPosition && index >= 0) {
+    persistString.Cut(index, 7);
+    saveString = true;
+  } else if (aPersistPosition && index < 0) {
+    persistString.AppendLiteral(" screenY");
+    saveString = true;
+  }
+  // Set CX
+  index = persistString.Find(u"width");
+  if (!aPersistSize && index >= 0) {
+    persistString.Cut(index, 5);
+    saveString = true;
+  } else if (aPersistSize && index < 0) {
+    persistString.AppendLiteral(" width");
+    saveString = true;
+  }
+  // Set CY
+  index = persistString.Find(u"height");
+  if (!aPersistSize && index >= 0) {
+    persistString.Cut(index, 6);
+    saveString = true;
+  } else if (aPersistSize && index < 0) {
+    persistString.AppendLiteral(" height");
+    saveString = true;
+  }
+  // Set SizeMode
+  index = persistString.Find(u"sizemode");
+  if (!aPersistSizeMode && (index >= 0)) {
+    persistString.Cut(index, 8);
+    saveString = true;
+  } else if (aPersistSizeMode && (index < 0)) {
+    persistString.AppendLiteral(" sizemode");
+    saveString = true;
+  }
+
+  ErrorResult rv;
+  if (saveString) {
+    docShellElement->SetAttribute(u"persist"_ns, persistString, rv);
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::GetPersistence(bool* aPersistPosition, bool* aPersistSize,
+                                   bool* aPersistSizeMode) {
+  NS_ENSURE_STATE(mAppWindow);
+  nsCOMPtr<dom::Element> docShellElement = mAppWindow->GetWindowDOMElement();
+  if (!docShellElement) return NS_ERROR_FAILURE;
+
+  nsAutoString persistString;
+  docShellElement->GetAttr(nsGkAtoms::persist, persistString);
+
+  // data structure doesn't quite match the question, but it's close enough
+  // for what we want (since this method is never actually called...)
+  if (aPersistPosition) {
+    *aPersistPosition = persistString.Find(u"screenX") >= 0 ||
+                        persistString.Find(u"screenY") >= 0;
+  }
+  if (aPersistSize) {
+    *aPersistSize =
+        persistString.Find(u"width") >= 0 || persistString.Find(u"height") >= 0;
+  }
+  if (aPersistSizeMode) {
+    *aPersistSizeMode = persistString.Find(u"sizemode") >= 0;
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::GetTabCount(uint32_t* aResult) {
+  if (mAppWindow) {
+    return mAppWindow->GetTabCount(aResult);
+  }
+
+  *aResult = 0;
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::GetHasPrimaryContent(bool* aResult) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetHasPrimaryContent(aResult);
+}
+
+//*****************************************************************************
+// nsContentTreeOwner::nsIWebBrowserChrome
+//*****************************************************************************
+
+NS_IMETHODIMP nsContentTreeOwner::SetLinkStatus(const nsAString& aStatusText) {
+  NS_ENSURE_STATE(mAppWindow);
+
+  nsCOMPtr<nsIXULBrowserWindow> xulBrowserWindow;
+  mAppWindow->GetXULBrowserWindow(getter_AddRefs(xulBrowserWindow));
+
+  if (xulBrowserWindow) {
+    xulBrowserWindow->SetOverLink(aStatusText);
+  }
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsContentTreeOwner::SetChromeFlags(uint32_t aChromeFlags) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->SetChromeFlags(aChromeFlags);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::GetChromeFlags(uint32_t* aChromeFlags) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetChromeFlags(aChromeFlags);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::ShowAsModal() {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->ShowModal();
+}
+
+NS_IMETHODIMP nsContentTreeOwner::IsWindowModal(bool* _retval) {
+  NS_ENSURE_STATE(mAppWindow);
+  *_retval = mAppWindow->mContinueModalLoop;
+  return NS_OK;
+}
+
+//*****************************************************************************
+// nsContentTreeOwner::nsIBaseWindow
+//*****************************************************************************
+
+NS_IMETHODIMP nsContentTreeOwner::InitWindow(nativeWindow aParentNativeWindow,
+                                             nsIWidget* parentWidget, int32_t x,
+                                             int32_t y, int32_t cx,
+                                             int32_t cy) {
+  // Ignore wigdet parents for now.  Don't think those are a vaild thing to
+  // call.
+  NS_ENSURE_SUCCESS(SetPositionAndSize(x, y, cx, cy, 0), NS_ERROR_FAILURE);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsContentTreeOwner::Destroy() {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->Destroy();
+}
+
+double nsContentTreeOwner::GetWidgetCSSToDeviceScale() {
+  return mAppWindow ? mAppWindow->GetWidgetCSSToDeviceScale() : 1.0;
+}
+
+NS_IMETHODIMP nsContentTreeOwner::GetDevicePixelsPerDesktopPixel(
+    double* aScale) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetDevicePixelsPerDesktopPixel(aScale);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::SetPositionDesktopPix(int32_t aX,
+                                                        int32_t aY) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->SetPositionDesktopPix(aX, aY);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::SetPosition(int32_t aX, int32_t aY) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->SetPosition(aX, aY);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::GetPosition(int32_t* aX, int32_t* aY) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetPosition(aX, aY);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::SetSize(int32_t aCX, int32_t aCY,
+                                          bool aRepaint) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->SetSize(aCX, aCY, aRepaint);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::GetSize(int32_t* aCX, int32_t* aCY) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetSize(aCX, aCY);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::SetPositionAndSize(int32_t aX, int32_t aY,
+                                                     int32_t aCX, int32_t aCY,
+                                                     uint32_t aFlags) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->SetPositionAndSize(aX, aY, aCX, aCY, aFlags);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::GetPositionAndSize(int32_t* aX, int32_t* aY,
+                                                     int32_t* aCX,
+                                                     int32_t* aCY) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetPositionAndSize(aX, aY, aCX, aCY);
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::SetDimensions(DimensionRequest&& aRequest) {
+  NS_ENSURE_STATE(mAppWindow);
+  if (aRequest.mDimensionKind == DimensionKind::Outer) {
+    return mAppWindow->SetDimensions(std::move(aRequest));
+  }
+
+  MOZ_TRY(aRequest.SupplementFrom(this));
+  return aRequest.ApplyInnerTo(this, /* aAsRootShell */ false);
+}
+
+NS_IMETHODIMP
+nsContentTreeOwner::GetDimensions(DimensionKind aDimensionKind, int32_t* aX,
+                                  int32_t* aY, int32_t* aCX, int32_t* aCY) {
+  NS_ENSURE_STATE(mAppWindow);
+  if (aDimensionKind == DimensionKind::Outer) {
+    return mAppWindow->GetDimensions(aDimensionKind, aX, aY, aCX, aCY);
+  }
+  if (aY || aX) {
+    return NS_ERROR_NOT_IMPLEMENTED;
+  }
+  return GetPrimaryContentSize(aCX, aCY);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::Repaint(bool aForce) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->Repaint(aForce);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::GetParentWidget(nsIWidget** aParentWidget) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetParentWidget(aParentWidget);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::SetParentWidget(nsIWidget* aParentWidget) {
+  NS_ASSERTION(false, "You can't call this");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsContentTreeOwner::GetParentNativeWindow(
+    nativeWindow* aParentNativeWindow) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetParentNativeWindow(aParentNativeWindow);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::SetParentNativeWindow(
+    nativeWindow aParentNativeWindow) {
+  NS_ASSERTION(false, "You can't call this");
+  return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+NS_IMETHODIMP nsContentTreeOwner::GetNativeHandle(nsAString& aNativeHandle) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetNativeHandle(aNativeHandle);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::GetVisibility(bool* aVisibility) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetVisibility(aVisibility);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::SetVisibility(bool aVisibility) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->SetVisibility(aVisibility);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::GetEnabled(bool* aEnabled) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->GetEnabled(aEnabled);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::SetEnabled(bool aEnable) {
+  NS_ENSURE_STATE(mAppWindow);
+  return mAppWindow->SetEnabled(aEnable);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::GetMainWidget(nsIWidget** aMainWidget) {
+  NS_ENSURE_ARG_POINTER(aMainWidget);
+  NS_ENSURE_STATE(mAppWindow);
+
+  *aMainWidget = mAppWindow->mWindow;
+  NS_IF_ADDREF(*aMainWidget);
+
+  return NS_OK;
+}
+
+NS_IMETHODIMP nsContentTreeOwner::GetTitle(nsAString& aTitle) {
+  NS_ENSURE_STATE(mAppWindow);
+
+  return mAppWindow->GetTitle(aTitle);
+}
+
+NS_IMETHODIMP nsContentTreeOwner::SetTitle(const nsAString& aTitle) {
+  return NS_OK;
+}
+
+//*****************************************************************************
+// nsContentTreeOwner: nsIWindowProvider
+//*****************************************************************************
+NS_IMETHODIMP
+nsContentTreeOwner::ProvideWindow(
+    nsIOpenWindowInfo* aOpenWindowInfo, uint32_t aChromeFlags,
+    bool aCalledFromJS, nsIURI* aURI, const nsAString& aName,
+    const nsACString& aFeatures,
+    const mozilla::dom::UserActivation::Modifiers& aModifiers,
+    bool aForceNoOpener, bool aForceNoReferrer, bool aIsPopupRequested,
+    nsDocShellLoadState* aLoadState, bool* aWindowIsNew,
+    dom::BrowsingContext** aReturn) {
+  NS_ENSURE_ARG_POINTER(aOpenWindowInfo);
+
+  RefPtr<dom::BrowsingContext> parent = aOpenWindowInfo->GetParent();
+
+  *aReturn = nullptr;
+
+  if (!mAppWindow) {
+    // Nothing to do here
+    return NS_OK;
+  }
+
+#ifdef DEBUG
+  nsCOMPtr<nsIDocShell> docshell = parent->GetDocShell();
+  nsCOMPtr<nsIDocShellTreeOwner> parentOwner = do_GetInterface(docshell);
+  NS_ASSERTION(
+      SameCOMIdentity(parentOwner, static_cast<nsIDocShellTreeOwner*>(this)),
+      "Parent from wrong docshell tree?");
+#endif
+
+  int32_t openLocation = nsWindowWatcher::GetWindowOpenLocation(
+      parent->GetDOMWindow(), aChromeFlags, aModifiers, aCalledFromJS,
+      aOpenWindowInfo->GetIsForPrinting());
+
+  if (openLocation != nsIBrowserDOMWindow::OPEN_NEWTAB &&
+      openLocation != nsIBrowserDOMWindow::OPEN_NEWTAB_BACKGROUND &&
+      openLocation != nsIBrowserDOMWindow::OPEN_CURRENTWINDOW &&
+      openLocation != nsIBrowserDOMWindow::OPEN_PRINT_BROWSER) {
+    // Just open a window normally
+    return NS_OK;
+  }
+
+  nsCOMPtr<mozIDOMWindowProxy> domWin;
+  mAppWindow->GetWindowDOMWindow(getter_AddRefs(domWin));
+  if (!domWin || !nsGlobalWindowOuter::Cast(domWin)->IsChromeWindow()) {
+    // Really odd... but whatever
+    NS_WARNING("AppWindow's DOMWindow is not a chrome window");
+    return NS_OK;
+  }
+
+  nsCOMPtr<nsIBrowserDOMWindow> browserDOMWin =
+      nsGlobalWindowOuter::Cast(domWin)->GetBrowserDOMWindow();
+  if (!browserDOMWin) {
+    return NS_OK;
+  }
+
+  *aWindowIsNew = (openLocation != nsIBrowserDOMWindow::OPEN_CURRENTWINDOW);
+
+  {
+    dom::AutoNoJSAPI nojsapi;
+
+    uint32_t flags = nsIBrowserDOMWindow::OPEN_NEW;
+    if (aForceNoOpener) {
+      flags |= nsIBrowserDOMWindow::OPEN_NO_OPENER;
+    }
+    if (aForceNoReferrer) {
+      flags |= nsIBrowserDOMWindow::OPEN_NO_REFERRER;
+    }
+
+    // Get a new rendering area from the browserDOMWin.
+    // Since we are not loading any URI, we follow the principle of least
+    // privilege and use a nullPrincipal as the triggeringPrincipal.
+    //
+    // This method handles setting the opener for us, so we don't need to set it
+    // ourselves.
+    RefPtr<NullPrincipal> nullPrincipal =
+        NullPrincipal::CreateWithoutOriginAttributes();
+    return browserDOMWin->CreateContentWindow(aURI, aOpenWindowInfo,
+                                              openLocation, flags,
+                                              nullPrincipal, nullptr, aReturn);
+  }
+}
+
+//*****************************************************************************
+// nsContentTreeOwner: Accessors
+//*****************************************************************************
+
+void nsContentTreeOwner::AppWindow(mozilla::AppWindow* aAppWindow) {
+  mAppWindow = aAppWindow;
+}
+
+mozilla::AppWindow* nsContentTreeOwner::AppWindow() { return mAppWindow; }
+
+/* this implementation focuses another window. if there isn't another
+   window to focus, we do nothing. */
+NS_IMETHODIMP
+nsContentTreeOwner::Blur() {
+  NS_DEFINE_CID(kWindowMediatorCID, NS_WINDOWMEDIATOR_CID);
+
+  nsCOMPtr<nsISimpleEnumerator> windowEnumerator;
+  nsCOMPtr<nsIAppWindow> appWindow;
+  bool more, foundUs;
+
+  {
+    nsCOMPtr<nsIWindowMediator> windowMediator(
+        do_GetService(kWindowMediatorCID));
+    if (windowMediator) {
+      windowMediator->GetZOrderAppWindowEnumerator(
+          nullptr, true, getter_AddRefs(windowEnumerator));
+    }
+  }
+
+  if (!windowEnumerator) return NS_ERROR_FAILURE;
+
+  // step through the top-level windows
+  foundUs = false;
+  windowEnumerator->HasMoreElements(&more);
+  while (more) {
+    nsCOMPtr<nsISupports> nextWindow;
+    nsCOMPtr<nsIAppWindow> nextAppWindow;
+
+    windowEnumerator->GetNext(getter_AddRefs(nextWindow));
+    nextAppWindow = do_QueryInterface(nextWindow);
+
+    // got it!(?)
+    if (foundUs) {
+      appWindow = nextAppWindow;
+      break;
+    }
+
+    // remember the very first one, in case we have to wrap
+    if (!appWindow) appWindow = nextAppWindow;
+
+    // look for us
+    if (nextAppWindow == mAppWindow) {
+      foundUs = true;
+    }
+
+    windowEnumerator->HasMoreElements(&more);
+  }
+
+  // change focus to the window we just found
+  if (appWindow) {
+    nsCOMPtr<nsIDocShell> docshell;
+    appWindow->GetDocShell(getter_AddRefs(docshell));
+    if (!docshell) {
+      return NS_OK;
+    }
+
+    nsCOMPtr<nsPIDOMWindowOuter> domWindow = docshell->GetWindow();
+    if (domWindow) domWindow->Focus(mozilla::dom::CallerType::System);
+  }
+  return NS_OK;
+}