gecko-dev/dom/base/BindContext.cpp

52 строки
1.4 KiB
C++

/* -*- 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/. */
#include "mozilla/dom/BindContext.h"
#include "mozilla/dom/BrowsingContext.h"
#include "mozilla/dom/Document.h"
#include "mozilla/StaticPrefs_browser.h"
#include "nsContentUtils.h"
#include "nsError.h"
#include "nsPIDOMWindow.h"
namespace mozilla::dom {
bool BindContext::AllowsAutoFocus() const {
if (!StaticPrefs::browser_autofocus()) {
return false;
}
if (!InUncomposedDoc()) {
return false;
}
if (mDoc.IsBeingUsedAsImage()) {
return false;
}
return IsSameOriginAsTop();
}
bool BindContext::IsSameOriginAsTop() const {
BrowsingContext* browsingContext = mDoc.GetBrowsingContext();
if (!browsingContext) {
return false;
}
nsPIDOMWindowOuter* topWindow = browsingContext->Top()->GetDOMWindow();
if (!topWindow) {
// If we don't have a DOMWindow, We are not in same origin.
return false;
}
Document* topLevelDocument = topWindow->GetExtantDoc();
if (!topLevelDocument) {
return false;
}
return NS_SUCCEEDED(nsContentUtils::CheckSameOrigin(topLevelDocument, &mDoc));
}
} // namespace mozilla::dom