1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 
7 #include "mozilla/dom/BindContext.h"
8 
9 #include "mozilla/StaticPrefs_browser.h"
10 
11 namespace mozilla {
12 namespace dom {
13 
AllowsAutoFocus() const14 bool BindContext::AllowsAutoFocus() const {
15   if (!StaticPrefs::browser_autofocus()) {
16     return false;
17   }
18   if (!InUncomposedDoc()) {
19     return false;
20   }
21   if (mDoc.IsBeingUsedAsImage()) {
22     return false;
23   }
24   return IsSameOriginAsTop();
25 }
26 
IsSameOriginAsTop() const27 bool BindContext::IsSameOriginAsTop() const {
28   BrowsingContext* browsingContext = mDoc.GetBrowsingContext();
29   if (!browsingContext) {
30     return false;
31   }
32 
33   nsPIDOMWindowOuter* topWindow = browsingContext->Top()->GetDOMWindow();
34   if (!topWindow) {
35     // If we don't have a DOMWindow, We are not in same origin.
36     return false;
37   }
38 
39   Document* topLevelDocument = topWindow->GetExtantDoc();
40   if (!topLevelDocument) {
41     return false;
42   }
43 
44   return NS_SUCCEEDED(nsContentUtils::CheckSameOrigin(topLevelDocument, &mDoc));
45 }
46 
47 }  // namespace dom
48 }  // namespace mozilla
49