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-rw-r--r--dom/xul/XULFrameElement.cpp200
1 files changed, 200 insertions, 0 deletions
diff --git a/dom/xul/XULFrameElement.cpp b/dom/xul/XULFrameElement.cpp
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+++ b/dom/xul/XULFrameElement.cpp
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+/* -*- 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 "nsCOMPtr.h"
+#include "nsIBrowser.h"
+#include "nsIContent.h"
+#include "nsIOpenWindowInfo.h"
+#include "nsFrameLoader.h"
+#include "mozilla/AsyncEventDispatcher.h"
+#include "mozilla/dom/HTMLIFrameElement.h"
+#include "mozilla/dom/WindowProxyHolder.h"
+#include "mozilla/dom/XULFrameElement.h"
+#include "mozilla/dom/XULFrameElementBinding.h"
+
+namespace mozilla::dom {
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(XULFrameElement)
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(XULFrameElement, nsXULElement)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mFrameLoader)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOpenWindowInfo)
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(XULFrameElement, nsXULElement)
+ if (tmp->mFrameLoader) {
+ tmp->mFrameLoader->Destroy();
+ }
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mOpenWindowInfo)
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED(XULFrameElement, nsXULElement,
+ nsFrameLoaderOwner)
+
+JSObject* XULFrameElement::WrapNode(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) {
+ return XULFrameElement_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+nsDocShell* XULFrameElement::GetDocShell() {
+ RefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
+ return frameLoader ? frameLoader->GetDocShell(IgnoreErrors()) : nullptr;
+}
+
+already_AddRefed<nsIWebNavigation> XULFrameElement::GetWebNavigation() {
+ nsCOMPtr<nsIDocShell> docShell = GetDocShell();
+ nsCOMPtr<nsIWebNavigation> webnav = do_QueryInterface(docShell);
+ return webnav.forget();
+}
+
+Nullable<WindowProxyHolder> XULFrameElement::GetContentWindow() {
+ RefPtr<nsDocShell> docShell = GetDocShell();
+ if (docShell) {
+ return docShell->GetWindowProxy();
+ }
+
+ return nullptr;
+}
+
+Document* XULFrameElement::GetContentDocument() {
+ nsCOMPtr<nsIDocShell> docShell = GetDocShell();
+ if (docShell) {
+ nsCOMPtr<nsPIDOMWindowOuter> win = docShell->GetWindow();
+ if (win) {
+ return win->GetDoc();
+ }
+ }
+ return nullptr;
+}
+
+uint64_t XULFrameElement::BrowserId() {
+ if (mFrameLoader) {
+ if (auto* bc = mFrameLoader->GetExtantBrowsingContext()) {
+ return bc->GetBrowserId();
+ }
+ }
+ return 0;
+}
+
+nsIOpenWindowInfo* XULFrameElement::GetOpenWindowInfo() const {
+ return mOpenWindowInfo;
+}
+
+void XULFrameElement::SetOpenWindowInfo(nsIOpenWindowInfo* aInfo) {
+ mOpenWindowInfo = aInfo;
+}
+
+void XULFrameElement::LoadSrc() {
+ if (!IsInUncomposedDoc() || !OwnerDoc()->GetRootElement()) {
+ return;
+ }
+ RefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
+ if (!frameLoader) {
+ // We may have had a nsIOpenWindowInfo set on us by browser chrome, due to
+ // being used as the target for a `window.open` call. Fetch that information
+ // if it's available, and clear it out so we don't read it again.
+ nsCOMPtr<nsIOpenWindowInfo> openWindowInfo = mOpenWindowInfo.forget();
+
+ // false as the networkCreated parameter so that xul:iframe/browser/editor
+ // session history handling works like dynamic html:iframes. Usually xul
+ // elements are used in chrome, which doesn't have session history at all.
+ mFrameLoader = nsFrameLoader::Create(this, false, openWindowInfo);
+ if (NS_WARN_IF(!mFrameLoader)) {
+ return;
+ }
+
+ AsyncEventDispatcher::RunDOMEventWhenSafe(
+ *this, u"XULFrameLoaderCreated"_ns, CanBubble::eYes);
+ }
+
+ mFrameLoader->LoadFrame(false);
+}
+
+void XULFrameElement::SwapFrameLoaders(HTMLIFrameElement& aOtherLoaderOwner,
+ ErrorResult& rv) {
+ aOtherLoaderOwner.SwapFrameLoaders(this, rv);
+}
+
+void XULFrameElement::SwapFrameLoaders(XULFrameElement& aOtherLoaderOwner,
+ ErrorResult& rv) {
+ if (&aOtherLoaderOwner == this) {
+ // nothing to do
+ return;
+ }
+
+ aOtherLoaderOwner.SwapFrameLoaders(this, rv);
+}
+
+void XULFrameElement::SwapFrameLoaders(nsFrameLoaderOwner* aOtherLoaderOwner,
+ mozilla::ErrorResult& rv) {
+ if (RefPtr<Document> doc = GetComposedDoc()) {
+ // SwapWithOtherLoader relies on frames being up-to-date.
+ doc->FlushPendingNotifications(FlushType::Frames);
+ }
+
+ RefPtr<nsFrameLoader> loader = GetFrameLoader();
+ RefPtr<nsFrameLoader> otherLoader = aOtherLoaderOwner->GetFrameLoader();
+ if (!loader || !otherLoader) {
+ rv.Throw(NS_ERROR_NOT_IMPLEMENTED);
+ return;
+ }
+
+ rv = loader->SwapWithOtherLoader(otherLoader, this, aOtherLoaderOwner);
+}
+
+nsresult XULFrameElement::BindToTree(BindContext& aContext, nsINode& aParent) {
+ nsresult rv = nsXULElement::BindToTree(aContext, aParent);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (IsInUncomposedDoc()) {
+ NS_ASSERTION(!nsContentUtils::IsSafeToRunScript(),
+ "Missing a script blocker!");
+ // We're in a document now. Kick off the frame load.
+ LoadSrc();
+ }
+
+ return NS_OK;
+}
+
+void XULFrameElement::UnbindFromTree(bool aNullParent) {
+ if (RefPtr<nsFrameLoader> frameLoader = GetFrameLoader()) {
+ frameLoader->Destroy();
+ }
+ mFrameLoader = nullptr;
+
+ nsXULElement::UnbindFromTree(aNullParent);
+}
+
+void XULFrameElement::DestroyContent() {
+ RefPtr<nsFrameLoader> frameLoader = GetFrameLoader();
+ if (frameLoader) {
+ frameLoader->Destroy();
+ }
+ mFrameLoader = nullptr;
+
+ nsXULElement::DestroyContent();
+}
+
+void XULFrameElement::AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
+ const nsAttrValue* aValue,
+ const nsAttrValue* aOldValue,
+ nsIPrincipal* aSubjectPrincipal,
+ bool aNotify) {
+ if (aNamespaceID == kNameSpaceID_None) {
+ if (aName == nsGkAtoms::src && aValue) {
+ LoadSrc();
+ } else if (aName == nsGkAtoms::disablefullscreen && mFrameLoader) {
+ if (auto* bc = mFrameLoader->GetExtantBrowsingContext()) {
+ MOZ_ALWAYS_SUCCEEDS(bc->SetFullscreenAllowedByOwner(!aValue));
+ }
+ }
+ }
+
+ return nsXULElement::AfterSetAttr(aNamespaceID, aName, aValue, aOldValue,
+ aSubjectPrincipal, aNotify);
+}
+
+} // namespace mozilla::dom