зеркало из https://github.com/mozilla/gecko-dev.git
3218 строки
108 KiB
C++
3218 строки
108 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* Class for managing loading of a subframe (creation of the docshell,
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* handling of loads in it, recursion-checking).
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*/
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#include "base/basictypes.h"
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#include "prenv.h"
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#include "nsDocShell.h"
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#include "nsIDOMMozBrowserFrame.h"
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#include "nsIDOMWindow.h"
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#include "nsIPresShell.h"
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#include "nsIContentInlines.h"
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#include "nsIContentViewer.h"
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#include "mozilla/dom/Document.h"
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#include "nsPIDOMWindow.h"
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#include "nsIWebNavigation.h"
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#include "nsIWebProgress.h"
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#include "nsIDocShell.h"
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#include "nsIDocShellTreeOwner.h"
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#include "nsDocShellLoadState.h"
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#include "nsIBaseWindow.h"
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#include "nsIBrowser.h"
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#include "nsContentUtils.h"
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#include "nsIXPConnect.h"
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#include "nsUnicharUtils.h"
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#include "nsIScriptGlobalObject.h"
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#include "nsIScriptSecurityManager.h"
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#include "nsIScrollable.h"
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#include "nsFrameLoader.h"
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#include "nsIFrame.h"
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#include "nsIScrollableFrame.h"
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#include "nsSubDocumentFrame.h"
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#include "nsError.h"
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#include "nsISHistory.h"
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#include "nsIXULWindow.h"
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#include "nsIMozBrowserFrame.h"
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#include "nsISHistory.h"
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#include "nsIScriptError.h"
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#include "nsGlobalWindow.h"
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#include "nsHTMLDocument.h"
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#include "nsPIWindowRoot.h"
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#include "nsLayoutUtils.h"
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#include "nsMappedAttributes.h"
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#include "nsView.h"
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#include "nsBaseWidget.h"
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#include "nsQueryObject.h"
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#include "nsIURI.h"
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#include "nsIURL.h"
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#include "nsNetUtil.h"
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#include "nsGkAtoms.h"
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#include "nsNameSpaceManager.h"
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#include "nsThreadUtils.h"
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#include "nsIDOMChromeWindow.h"
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#include "InProcessTabChildMessageManager.h"
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#include "Layers.h"
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#include "ClientLayerManager.h"
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#include "ContentParent.h"
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#include "TabParent.h"
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#include "mozilla/AsyncEventDispatcher.h"
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#include "mozilla/BasePrincipal.h"
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#include "mozilla/GuardObjects.h"
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#include "mozilla/HTMLEditor.h"
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#include "mozilla/NullPrincipal.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/Unused.h"
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#include "mozilla/dom/ChromeMessageSender.h"
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#include "mozilla/dom/Element.h"
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#include "mozilla/dom/FrameLoaderBinding.h"
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#include "mozilla/gfx/CrossProcessPaint.h"
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#include "mozilla/jsipc/CrossProcessObjectWrappers.h"
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#include "mozilla/layout/RenderFrame.h"
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#include "mozilla/ServoCSSParser.h"
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#include "mozilla/ServoStyleSet.h"
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#include "nsGenericHTMLFrameElement.h"
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#include "GeckoProfiler.h"
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#include "jsapi.h"
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#include "mozilla/dom/HTMLIFrameElement.h"
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#include "nsSandboxFlags.h"
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#include "mozilla/layers/CompositorBridgeChild.h"
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#include "mozilla/dom/CustomEvent.h"
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#include "mozilla/dom/ipc/StructuredCloneData.h"
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#include "mozilla/WebBrowserPersistLocalDocument.h"
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#include "mozilla/dom/Promise.h"
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#include "mozilla/dom/PromiseNativeHandler.h"
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#include "mozilla/dom/ParentSHistory.h"
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#include "mozilla/dom/ChildSHistory.h"
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#include "mozilla/dom/CanonicalBrowsingContext.h"
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#include "mozilla/dom/HTMLBodyElement.h"
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#include "mozilla/ContentPrincipal.h"
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#ifdef XP_WIN
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# include "mozilla/plugins/PPluginWidgetParent.h"
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# include "../plugins/ipc/PluginWidgetParent.h"
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#endif
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#ifdef MOZ_XUL
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# include "nsXULPopupManager.h"
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#endif
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#ifdef NS_PRINTING
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# include "mozilla/embedding/printingui/PrintingParent.h"
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# include "nsIWebBrowserPrint.h"
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#endif
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using namespace mozilla;
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using namespace mozilla::hal;
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using namespace mozilla::dom;
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using namespace mozilla::dom::ipc;
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using namespace mozilla::layers;
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using namespace mozilla::layout;
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typedef ScrollableLayerGuid::ViewID ViewID;
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// Bug 136580: Limit to the number of nested content frames that can have the
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// same URL. This is to stop content that is recursively loading
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// itself. Note that "#foo" on the end of URL doesn't affect
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// whether it's considered identical, but "?foo" or ";foo" are
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// considered and compared.
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// Limit this to 2, like chromium does.
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#define MAX_SAME_URL_CONTENT_FRAMES 2
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// Bug 8065: Limit content frame depth to some reasonable level. This
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// does not count chrome frames when determining depth, nor does it
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// prevent chrome recursion. Number is fairly arbitrary, but meant to
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// keep number of shells to a reasonable number on accidental recursion with a
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// small (but not 1) branching factor. With large branching factors the number
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// of shells can rapidly become huge and run us out of memory. To solve that,
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// we'd need to re-institute a fixed version of bug 98158.
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#define MAX_DEPTH_CONTENT_FRAMES 10
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(nsFrameLoader, mDocShell, mMessageManager,
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mChildMessageManager, mOpener,
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mParentSHistory)
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NS_IMPL_CYCLE_COLLECTING_ADDREF(nsFrameLoader)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(nsFrameLoader)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsFrameLoader)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY_CONCRETE(nsFrameLoader)
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NS_INTERFACE_MAP_ENTRY(nsIMutationObserver)
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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nsFrameLoader::nsFrameLoader(Element* aOwner, nsPIDOMWindowOuter* aOpener,
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bool aNetworkCreated, int32_t aJSPluginID)
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: mOwnerContent(aOwner),
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mDetachedSubdocFrame(nullptr),
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mOpener(aOpener),
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mRemoteBrowser(nullptr),
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mChildID(0),
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mJSPluginID(aJSPluginID),
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mDepthTooGreat(false),
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mIsTopLevelContent(false),
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mDestroyCalled(false),
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mNeedsAsyncDestroy(false),
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mInSwap(false),
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mInShow(false),
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mHideCalled(false),
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mNetworkCreated(aNetworkCreated),
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mLoadingOriginalSrc(false),
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mRemoteBrowserShown(false),
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mRemoteFrame(false),
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mClampScrollPosition(true),
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mObservingOwnerContent(false) {
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mRemoteFrame = ShouldUseRemoteProcess();
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MOZ_ASSERT(!mRemoteFrame || !aOpener,
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"Cannot pass aOpener for a remote frame!");
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}
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nsFrameLoader::~nsFrameLoader() {
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if (mMessageManager) {
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mMessageManager->Disconnect();
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}
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MOZ_RELEASE_ASSERT(mDestroyCalled);
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}
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nsFrameLoader* nsFrameLoader::Create(Element* aOwner,
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nsPIDOMWindowOuter* aOpener,
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bool aNetworkCreated,
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int32_t aJSPluginId) {
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NS_ENSURE_TRUE(aOwner, nullptr);
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Document* doc = aOwner->OwnerDoc();
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// We never create nsFrameLoaders for elements in resource documents.
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//
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// We never create nsFrameLoaders for elements in data documents, unless the
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// document is a static document.
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// Static documents are an exception because any sub-documents need an
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// nsFrameLoader to keep the relevant docShell alive, even though the
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// nsFrameLoader isn't used to load anything (the sub-document is created by
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// the static clone process).
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//
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// We never create nsFrameLoaders for elements that are not
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// in-composed-document, unless the element belongs to a static document.
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// Static documents are an exception because this method is called at a point
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// in the static clone process before aOwner has been inserted into its
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// document. For other types of documents this wouldn't be a problem since
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// we'd create the nsFrameLoader as necessary after aOwner is inserted into a
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// document, but the mechanisms that take care of that don't apply for static
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// documents so we need to create the nsFrameLoader now. (This isn't wasteful
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// since for a static document we know aOwner will end up in a document and
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// the nsFrameLoader will be used for its docShell.)
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//
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NS_ENSURE_TRUE(!doc->IsResourceDoc() &&
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((!doc->IsLoadedAsData() && aOwner->IsInComposedDoc()) ||
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doc->IsStaticDocument()),
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nullptr);
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return new nsFrameLoader(aOwner, aOpener, aNetworkCreated, aJSPluginId);
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}
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void nsFrameLoader::LoadFrame(bool aOriginalSrc) {
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if (NS_WARN_IF(!mOwnerContent)) {
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return;
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}
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nsAutoString src;
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nsCOMPtr<nsIPrincipal> principal;
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bool isSrcdoc = mOwnerContent->IsHTMLElement(nsGkAtoms::iframe) &&
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mOwnerContent->HasAttr(kNameSpaceID_None, nsGkAtoms::srcdoc);
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if (isSrcdoc) {
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src.AssignLiteral("about:srcdoc");
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principal = mOwnerContent->NodePrincipal();
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} else {
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GetURL(src, getter_AddRefs(principal));
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src.Trim(" \t\n\r");
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if (src.IsEmpty()) {
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// If the frame is a XUL element and has the attribute 'nodefaultsrc=true'
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// then we will not use 'about:blank' as fallback but return early without
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// starting a load if no 'src' attribute is given (or it's empty).
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if (mOwnerContent->IsXULElement() &&
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mOwnerContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::nodefaultsrc,
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nsGkAtoms::_true, eCaseMatters)) {
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return;
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}
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src.AssignLiteral("about:blank");
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principal = mOwnerContent->NodePrincipal();
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}
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}
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Document* doc = mOwnerContent->OwnerDoc();
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if (doc->IsStaticDocument()) {
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return;
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}
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if (doc->IsLoadedAsInteractiveData()) {
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// XBL bindings doc shouldn't load sub-documents.
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return;
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}
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nsCOMPtr<nsIURI> base_uri = mOwnerContent->GetBaseURI();
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auto encoding = doc->GetDocumentCharacterSet();
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nsCOMPtr<nsIURI> uri;
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nsresult rv = NS_NewURI(getter_AddRefs(uri), src, encoding, base_uri);
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// If the URI was malformed, try to recover by loading about:blank.
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if (rv == NS_ERROR_MALFORMED_URI) {
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rv = NS_NewURI(getter_AddRefs(uri), NS_LITERAL_STRING("about:blank"),
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encoding, base_uri);
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}
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if (NS_SUCCEEDED(rv)) {
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rv = LoadURI(uri, principal, aOriginalSrc);
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}
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if (NS_FAILED(rv)) {
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FireErrorEvent();
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}
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}
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void nsFrameLoader::FireErrorEvent() {
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if (!mOwnerContent) {
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return;
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}
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RefPtr<AsyncEventDispatcher> loadBlockingAsyncDispatcher =
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new LoadBlockingAsyncEventDispatcher(
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mOwnerContent, NS_LITERAL_STRING("error"), CanBubble::eNo,
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ChromeOnlyDispatch::eNo);
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loadBlockingAsyncDispatcher->PostDOMEvent();
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}
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nsresult nsFrameLoader::LoadURI(nsIURI* aURI,
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nsIPrincipal* aTriggeringPrincipal,
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bool aOriginalSrc) {
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if (!aURI) return NS_ERROR_INVALID_POINTER;
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NS_ENSURE_STATE(!mDestroyCalled && mOwnerContent);
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MOZ_ASSERT(
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aTriggeringPrincipal,
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"Must have an explicit triggeringPrincipal to nsFrameLoader::LoadURI.");
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mLoadingOriginalSrc = aOriginalSrc;
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nsCOMPtr<Document> doc = mOwnerContent->OwnerDoc();
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nsresult rv;
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// If IsForJSPlugin() returns true then we want to allow the load. We're just
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// loading the source for the implementation of the JS plugin from a URI
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// that's under our control. We will already have done the security checks for
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// loading the plugin content itself in the object/embed loading code.
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if (!IsForJSPlugin()) {
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rv = CheckURILoad(aURI, aTriggeringPrincipal);
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NS_ENSURE_SUCCESS(rv, rv);
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}
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mURIToLoad = aURI;
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mTriggeringPrincipal = aTriggeringPrincipal;
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rv = doc->InitializeFrameLoader(this);
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if (NS_FAILED(rv)) {
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mURIToLoad = nullptr;
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mTriggeringPrincipal = nullptr;
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}
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return rv;
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}
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nsresult nsFrameLoader::ReallyStartLoading() {
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nsresult rv = ReallyStartLoadingInternal();
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if (NS_FAILED(rv)) {
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FireErrorEvent();
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}
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return rv;
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}
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nsresult nsFrameLoader::ReallyStartLoadingInternal() {
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NS_ENSURE_STATE(mURIToLoad && mOwnerContent &&
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mOwnerContent->IsInComposedDoc());
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AUTO_PROFILER_LABEL("nsFrameLoader::ReallyStartLoadingInternal", OTHER);
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if (IsRemoteFrame()) {
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if (!mRemoteBrowser && !TryRemoteBrowser()) {
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NS_WARNING("Couldn't create child process for iframe.");
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return NS_ERROR_FAILURE;
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}
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// FIXME get error codes from child
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mRemoteBrowser->LoadURL(mURIToLoad);
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if (!mRemoteBrowserShown) {
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// This can fail if it's too early to show the frame, we will retry later.
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Unused << ShowRemoteFrame(ScreenIntSize(0, 0));
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}
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return NS_OK;
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}
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nsresult rv = MaybeCreateDocShell();
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if (NS_FAILED(rv)) {
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return rv;
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}
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NS_ASSERTION(mDocShell,
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"MaybeCreateDocShell succeeded with a null mDocShell");
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// Just to be safe, recheck uri.
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rv = CheckURILoad(mURIToLoad, mTriggeringPrincipal);
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NS_ENSURE_SUCCESS(rv, rv);
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RefPtr<nsDocShellLoadState> loadState = new nsDocShellLoadState(mURIToLoad);
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loadState->SetOriginalFrameSrc(mLoadingOriginalSrc);
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mLoadingOriginalSrc = false;
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// If this frame is sandboxed with respect to origin we will set it up with
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// a null principal later in nsDocShell::DoURILoad.
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// We do it there to correctly sandbox content that was loaded into
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// the frame via other methods than the src attribute.
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// We'll use our principal, not that of the document loaded inside us. This
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// is very important; needed to prevent XSS attacks on documents loaded in
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// subframes!
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if (mTriggeringPrincipal) {
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loadState->SetTriggeringPrincipal(mTriggeringPrincipal);
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} else {
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loadState->SetTriggeringPrincipal(mOwnerContent->NodePrincipal());
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}
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nsCOMPtr<nsIURI> referrer;
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nsAutoString srcdoc;
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bool isSrcdoc =
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mOwnerContent->IsHTMLElement(nsGkAtoms::iframe) &&
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mOwnerContent->GetAttr(kNameSpaceID_None, nsGkAtoms::srcdoc, srcdoc);
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if (isSrcdoc) {
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nsAutoString referrerStr;
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mOwnerContent->OwnerDoc()->GetReferrer(referrerStr);
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rv = NS_NewURI(getter_AddRefs(referrer), referrerStr);
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loadState->SetSrcdocData(srcdoc);
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nsCOMPtr<nsIURI> baseURI = mOwnerContent->GetBaseURI();
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loadState->SetBaseURI(baseURI);
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} else {
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rv = mOwnerContent->NodePrincipal()->GetURI(getter_AddRefs(referrer));
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NS_ENSURE_SUCCESS(rv, rv);
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}
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// Use referrer as long as it is not an NullPrincipalURI.
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// We could add a method such as GetReferrerURI to principals to make this
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// cleaner, but given that we need to start using Source Browsing Context for
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// referrer (see Bug 960639) this may be wasted effort at this stage.
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if (referrer) {
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bool isNullPrincipalScheme;
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rv = referrer->SchemeIs(NS_NULLPRINCIPAL_SCHEME, &isNullPrincipalScheme);
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if (NS_SUCCEEDED(rv) && !isNullPrincipalScheme) {
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loadState->SetReferrer(referrer);
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}
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}
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// get referrer policy for this iframe:
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// first load document wide policy, then
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// load iframe referrer attribute if enabled in preferences
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// per element referrer overrules document wide referrer if enabled
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net::ReferrerPolicy referrerPolicy =
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mOwnerContent->OwnerDoc()->GetReferrerPolicy();
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HTMLIFrameElement* iframe = HTMLIFrameElement::FromNode(mOwnerContent);
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if (iframe) {
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net::ReferrerPolicy iframeReferrerPolicy =
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iframe->GetReferrerPolicyAsEnum();
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if (iframeReferrerPolicy != net::RP_Unset) {
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referrerPolicy = iframeReferrerPolicy;
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}
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}
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loadState->SetReferrerPolicy(referrerPolicy);
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// Default flags:
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int32_t flags = nsIWebNavigation::LOAD_FLAGS_NONE;
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// Flags for browser frame:
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if (OwnerIsMozBrowserFrame()) {
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flags = nsIWebNavigation::LOAD_FLAGS_ALLOW_THIRD_PARTY_FIXUP |
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nsIWebNavigation::LOAD_FLAGS_DISALLOW_INHERIT_PRINCIPAL;
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}
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loadState->SetIsFromProcessingFrameAttributes();
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// Kick off the load...
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bool tmpState = mNeedsAsyncDestroy;
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mNeedsAsyncDestroy = true;
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loadState->SetLoadFlags(flags);
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loadState->SetFirstParty(false);
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rv = mDocShell->LoadURI(loadState);
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mNeedsAsyncDestroy = tmpState;
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mURIToLoad = nullptr;
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NS_ENSURE_SUCCESS(rv, rv);
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return NS_OK;
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}
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nsresult nsFrameLoader::CheckURILoad(nsIURI* aURI,
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nsIPrincipal* aTriggeringPrincipal) {
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// Check for security. The fun part is trying to figure out what principals
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// to use. The way I figure it, if we're doing a LoadFrame() accidentally
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// (eg someone created a frame/iframe node, we're being parsed, XUL iframes
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// are being reframed, etc.) then we definitely want to use the node
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// principal of mOwnerContent for security checks. If, on the other hand,
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// someone's setting the src on our owner content, or created it via script,
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// or whatever, then they can clearly access it... and we should still use
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// the principal of mOwnerContent. I don't think that leads to privilege
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// escalation, and it's reasonably guaranteed to not lead to XSS issues
|
|
// (since caller can already access mOwnerContent in this case). So just use
|
|
// the principal of mOwnerContent no matter what. If script wants to run
|
|
// things with its own permissions, which differ from those of mOwnerContent
|
|
// (which means the script is privileged in some way) it should set
|
|
// window.location instead.
|
|
nsIScriptSecurityManager* secMan = nsContentUtils::GetSecurityManager();
|
|
|
|
// Get our principal
|
|
nsIPrincipal* principal =
|
|
(aTriggeringPrincipal ? aTriggeringPrincipal
|
|
: mOwnerContent->NodePrincipal());
|
|
|
|
// Check if we are allowed to load absURL
|
|
nsresult rv = secMan->CheckLoadURIWithPrincipal(
|
|
principal, aURI, nsIScriptSecurityManager::STANDARD);
|
|
if (NS_FAILED(rv)) {
|
|
return rv; // We're not
|
|
}
|
|
|
|
// Bail out if this is an infinite recursion scenario
|
|
if (IsRemoteFrame()) {
|
|
return NS_OK;
|
|
}
|
|
return CheckForRecursiveLoad(aURI);
|
|
}
|
|
|
|
nsDocShell* nsFrameLoader::GetDocShell(ErrorResult& aRv) {
|
|
if (IsRemoteFrame()) {
|
|
return nullptr;
|
|
}
|
|
|
|
// If we have an owner, make sure we have a docshell and return
|
|
// that. If not, we're most likely in the middle of being torn down,
|
|
// then we just return null.
|
|
if (mOwnerContent) {
|
|
nsresult rv = MaybeCreateDocShell();
|
|
if (NS_FAILED(rv)) {
|
|
aRv.Throw(rv);
|
|
return nullptr;
|
|
}
|
|
NS_ASSERTION(mDocShell,
|
|
"MaybeCreateDocShell succeeded, but null mDocShell");
|
|
}
|
|
|
|
return mDocShell;
|
|
}
|
|
|
|
static void SetTreeOwnerAndChromeEventHandlerOnDocshellTree(
|
|
nsIDocShellTreeItem* aItem, nsIDocShellTreeOwner* aOwner,
|
|
EventTarget* aHandler) {
|
|
MOZ_ASSERT(aItem, "Must have item");
|
|
|
|
aItem->SetTreeOwner(aOwner);
|
|
|
|
int32_t childCount = 0;
|
|
aItem->GetChildCount(&childCount);
|
|
for (int32_t i = 0; i < childCount; ++i) {
|
|
nsCOMPtr<nsIDocShellTreeItem> item;
|
|
aItem->GetChildAt(i, getter_AddRefs(item));
|
|
if (aHandler) {
|
|
nsCOMPtr<nsIDocShell> shell(do_QueryInterface(item));
|
|
shell->SetChromeEventHandler(aHandler);
|
|
}
|
|
SetTreeOwnerAndChromeEventHandlerOnDocshellTree(item, aOwner, aHandler);
|
|
}
|
|
}
|
|
|
|
#if defined(MOZ_DIAGNOSTIC_ASSERT_ENABLED)
|
|
static bool CheckDocShellType(mozilla::dom::Element* aOwnerContent,
|
|
nsIDocShellTreeItem* aDocShell, nsAtom* aAtom) {
|
|
bool isContent = aOwnerContent->AttrValueIs(kNameSpaceID_None, aAtom,
|
|
nsGkAtoms::content, eIgnoreCase);
|
|
|
|
if (!isContent) {
|
|
nsCOMPtr<nsIMozBrowserFrame> mozbrowser =
|
|
aOwnerContent->GetAsMozBrowserFrame();
|
|
if (mozbrowser) {
|
|
mozbrowser->GetMozbrowser(&isContent);
|
|
}
|
|
}
|
|
|
|
if (isContent) {
|
|
return aDocShell->ItemType() == nsIDocShellTreeItem::typeContent;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShellTreeItem> parent;
|
|
aDocShell->GetParent(getter_AddRefs(parent));
|
|
|
|
return parent && parent->ItemType() == aDocShell->ItemType();
|
|
}
|
|
#endif // defined(MOZ_DIAGNOSTIC_ASSERT_ENABLED)
|
|
|
|
/**
|
|
* Hook up a given TreeItem to its tree owner. aItem's type must have already
|
|
* been set, and it should already be part of the DocShellTree.
|
|
* @param aItem the treeitem we're working with
|
|
* @param aTreeOwner the relevant treeowner; might be null
|
|
*/
|
|
void nsFrameLoader::AddTreeItemToTreeOwner(nsIDocShellTreeItem* aItem,
|
|
nsIDocShellTreeOwner* aOwner) {
|
|
MOZ_ASSERT(aItem, "Must have docshell treeitem");
|
|
MOZ_ASSERT(mOwnerContent, "Must have owning content");
|
|
|
|
MOZ_DIAGNOSTIC_ASSERT(
|
|
CheckDocShellType(mOwnerContent, aItem, TypeAttrName()),
|
|
"Correct ItemType should be set when creating BrowsingContext");
|
|
|
|
if (mIsTopLevelContent) {
|
|
bool is_primary = mOwnerContent->AttrValueIs(
|
|
kNameSpaceID_None, nsGkAtoms::primary, nsGkAtoms::_true, eIgnoreCase);
|
|
if (aOwner) {
|
|
mOwnerContent->AddMutationObserver(this);
|
|
mObservingOwnerContent = true;
|
|
aOwner->ContentShellAdded(aItem, is_primary);
|
|
}
|
|
}
|
|
}
|
|
|
|
static bool AllDescendantsOfType(nsIDocShellTreeItem* aParentItem,
|
|
int32_t aType) {
|
|
int32_t childCount = 0;
|
|
aParentItem->GetChildCount(&childCount);
|
|
|
|
for (int32_t i = 0; i < childCount; ++i) {
|
|
nsCOMPtr<nsIDocShellTreeItem> kid;
|
|
aParentItem->GetChildAt(i, getter_AddRefs(kid));
|
|
|
|
if (kid->ItemType() != aType || !AllDescendantsOfType(kid, aType)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* A class that automatically sets mInShow to false when it goes
|
|
* out of scope.
|
|
*/
|
|
class MOZ_RAII AutoResetInShow {
|
|
private:
|
|
nsFrameLoader* mFrameLoader;
|
|
MOZ_DECL_USE_GUARD_OBJECT_NOTIFIER
|
|
public:
|
|
explicit AutoResetInShow(
|
|
nsFrameLoader* aFrameLoader MOZ_GUARD_OBJECT_NOTIFIER_PARAM)
|
|
: mFrameLoader(aFrameLoader) {
|
|
MOZ_GUARD_OBJECT_NOTIFIER_INIT;
|
|
}
|
|
~AutoResetInShow() { mFrameLoader->mInShow = false; }
|
|
};
|
|
|
|
static bool ParentWindowIsActive(Document* aDoc) {
|
|
nsCOMPtr<nsPIWindowRoot> root = nsContentUtils::GetWindowRoot(aDoc);
|
|
if (root) {
|
|
nsPIDOMWindowOuter* rootWin = root->GetWindow();
|
|
return rootWin && rootWin->IsActive();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void nsFrameLoader::MaybeShowFrame() {
|
|
nsIFrame* frame = GetPrimaryFrameOfOwningContent();
|
|
if (frame) {
|
|
nsSubDocumentFrame* subDocFrame = do_QueryFrame(frame);
|
|
if (subDocFrame) {
|
|
subDocFrame->MaybeShowViewer();
|
|
}
|
|
}
|
|
}
|
|
|
|
bool nsFrameLoader::Show(int32_t marginWidth, int32_t marginHeight,
|
|
int32_t scrollbarPrefX, int32_t scrollbarPrefY,
|
|
nsSubDocumentFrame* frame) {
|
|
if (mInShow) {
|
|
return false;
|
|
}
|
|
// Reset mInShow if we exit early.
|
|
AutoResetInShow resetInShow(this);
|
|
mInShow = true;
|
|
|
|
ScreenIntSize size = frame->GetSubdocumentSize();
|
|
if (IsRemoteFrame()) {
|
|
return ShowRemoteFrame(size, frame);
|
|
}
|
|
|
|
nsresult rv = MaybeCreateDocShell();
|
|
if (NS_FAILED(rv)) {
|
|
return false;
|
|
}
|
|
NS_ASSERTION(mDocShell, "MaybeCreateDocShell succeeded, but null mDocShell");
|
|
if (!mDocShell) {
|
|
return false;
|
|
}
|
|
|
|
mDocShell->SetMarginWidth(marginWidth);
|
|
mDocShell->SetMarginHeight(marginHeight);
|
|
|
|
mDocShell->SetDefaultScrollbarPreferences(nsIScrollable::ScrollOrientation_X,
|
|
scrollbarPrefX);
|
|
mDocShell->SetDefaultScrollbarPreferences(nsIScrollable::ScrollOrientation_Y,
|
|
scrollbarPrefY);
|
|
|
|
nsCOMPtr<nsIPresShell> presShell = mDocShell->GetPresShell();
|
|
if (presShell) {
|
|
// Ensure root scroll frame is reflowed in case scroll preferences or
|
|
// margins have changed
|
|
nsIFrame* rootScrollFrame = presShell->GetRootScrollFrame();
|
|
if (rootScrollFrame) {
|
|
presShell->FrameNeedsReflow(rootScrollFrame, nsIPresShell::eResize,
|
|
NS_FRAME_IS_DIRTY);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
nsView* view = frame->EnsureInnerView();
|
|
if (!view) return false;
|
|
|
|
RefPtr<nsDocShell> baseWindow = mDocShell;
|
|
baseWindow->InitWindow(nullptr, view->GetWidget(), 0, 0, size.width,
|
|
size.height);
|
|
// This is kinda whacky, this "Create()" call doesn't really
|
|
// create anything, one starts to wonder why this was named
|
|
// "Create"...
|
|
baseWindow->Create();
|
|
baseWindow->SetVisibility(true);
|
|
NS_ENSURE_TRUE(mDocShell, false);
|
|
|
|
// Trigger editor re-initialization if midas is turned on in the
|
|
// sub-document. This shouldn't be necessary, but given the way our
|
|
// editor works, it is. See
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=284245
|
|
presShell = mDocShell->GetPresShell();
|
|
if (presShell) {
|
|
Document* doc = presShell->GetDocument();
|
|
nsHTMLDocument* htmlDoc =
|
|
doc && doc->IsHTMLOrXHTML() ? doc->AsHTMLDocument() : nullptr;
|
|
|
|
if (htmlDoc) {
|
|
nsAutoString designMode;
|
|
htmlDoc->GetDesignMode(designMode);
|
|
|
|
if (designMode.EqualsLiteral("on")) {
|
|
// Hold on to the editor object to let the document reattach to the
|
|
// same editor object, instead of creating a new one.
|
|
RefPtr<HTMLEditor> htmlEditor = mDocShell->GetHTMLEditor();
|
|
Unused << htmlEditor;
|
|
htmlDoc->SetDesignMode(NS_LITERAL_STRING("off"), Nothing(),
|
|
IgnoreErrors());
|
|
|
|
htmlDoc->SetDesignMode(NS_LITERAL_STRING("on"), Nothing(),
|
|
IgnoreErrors());
|
|
} else {
|
|
// Re-initialize the presentation for contenteditable documents
|
|
bool editable = false, hasEditingSession = false;
|
|
mDocShell->GetEditable(&editable);
|
|
mDocShell->GetHasEditingSession(&hasEditingSession);
|
|
RefPtr<HTMLEditor> htmlEditor = mDocShell->GetHTMLEditor();
|
|
if (editable && hasEditingSession && htmlEditor) {
|
|
htmlEditor->PostCreate();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
mInShow = false;
|
|
if (mHideCalled) {
|
|
mHideCalled = false;
|
|
Hide();
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void nsFrameLoader::MarginsChanged(uint32_t aMarginWidth,
|
|
uint32_t aMarginHeight) {
|
|
// We assume that the margins are always zero for remote frames.
|
|
if (IsRemoteFrame()) return;
|
|
|
|
// If there's no docshell, we're probably not up and running yet.
|
|
// nsFrameLoader::Show() will take care of setting the right
|
|
// margins.
|
|
if (!mDocShell) return;
|
|
|
|
// Set the margins
|
|
mDocShell->SetMarginWidth(aMarginWidth);
|
|
mDocShell->SetMarginHeight(aMarginHeight);
|
|
|
|
// There's a cached property declaration block
|
|
// that needs to be updated
|
|
if (Document* doc = mDocShell->GetDocument()) {
|
|
for (nsINode* cur = doc; cur; cur = cur->GetNextNode()) {
|
|
if (cur->IsHTMLElement(nsGkAtoms::body)) {
|
|
static_cast<HTMLBodyElement*>(cur)->ClearMappedServoStyle();
|
|
}
|
|
}
|
|
}
|
|
|
|
// Trigger a restyle if there's a prescontext
|
|
// FIXME: This could do something much less expensive.
|
|
RefPtr<nsPresContext> presContext = mDocShell->GetPresContext();
|
|
if (presContext)
|
|
// rebuild, because now the same nsMappedAttributes* will produce
|
|
// a different style
|
|
presContext->RebuildAllStyleData(nsChangeHint(0), eRestyle_Subtree);
|
|
}
|
|
|
|
bool nsFrameLoader::ShowRemoteFrame(const ScreenIntSize& size,
|
|
nsSubDocumentFrame* aFrame) {
|
|
AUTO_PROFILER_LABEL("nsFrameLoader::ShowRemoteFrame", OTHER);
|
|
NS_ASSERTION(IsRemoteFrame(),
|
|
"ShowRemote only makes sense on remote frames.");
|
|
|
|
if (!mRemoteBrowser && !TryRemoteBrowser()) {
|
|
NS_ERROR("Couldn't create child process.");
|
|
return false;
|
|
}
|
|
|
|
// FIXME/bug 589337: Show()/Hide() is pretty expensive for
|
|
// cross-process layers; need to figure out what behavior we really
|
|
// want here. For now, hack.
|
|
if (!mRemoteBrowserShown) {
|
|
if (!mOwnerContent || !mOwnerContent->GetComposedDoc()) {
|
|
return false;
|
|
}
|
|
|
|
// We never want to host remote frameloaders in simple popups, like menus.
|
|
nsIWidget* widget = nsContentUtils::WidgetForContent(mOwnerContent);
|
|
if (!widget || static_cast<nsBaseWidget*>(widget)->IsSmallPopup()) {
|
|
return false;
|
|
}
|
|
|
|
RenderFrame* rf = GetCurrentRenderFrame();
|
|
if (!rf) {
|
|
return false;
|
|
}
|
|
|
|
if (!rf->AttachLayerManager()) {
|
|
// This is just not going to work.
|
|
return false;
|
|
}
|
|
|
|
mRemoteBrowser->Show(size, ParentWindowIsActive(mOwnerContent->OwnerDoc()));
|
|
mRemoteBrowserShown = true;
|
|
|
|
nsCOMPtr<nsIObserverService> os = services::GetObserverService();
|
|
if (os) {
|
|
os->NotifyObservers(ToSupports(this), "remote-browser-shown", nullptr);
|
|
}
|
|
} else {
|
|
nsIntRect dimensions;
|
|
NS_ENSURE_SUCCESS(GetWindowDimensions(dimensions), false);
|
|
|
|
// Don't show remote iframe if we are waiting for the completion of reflow.
|
|
if (!aFrame || !(aFrame->GetStateBits() & NS_FRAME_FIRST_REFLOW)) {
|
|
mRemoteBrowser->UpdateDimensions(dimensions, size);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void nsFrameLoader::Hide() {
|
|
if (mHideCalled) {
|
|
return;
|
|
}
|
|
if (mInShow) {
|
|
mHideCalled = true;
|
|
return;
|
|
}
|
|
|
|
if (!mDocShell) return;
|
|
|
|
nsCOMPtr<nsIContentViewer> contentViewer;
|
|
mDocShell->GetContentViewer(getter_AddRefs(contentViewer));
|
|
if (contentViewer) contentViewer->SetSticky(false);
|
|
|
|
RefPtr<nsDocShell> baseWin = mDocShell;
|
|
baseWin->SetVisibility(false);
|
|
baseWin->SetParentWidget(nullptr);
|
|
}
|
|
|
|
void nsFrameLoader::ForceLayoutIfNecessary() {
|
|
nsIFrame* frame = GetPrimaryFrameOfOwningContent();
|
|
if (!frame) {
|
|
return;
|
|
}
|
|
|
|
nsPresContext* presContext = frame->PresContext();
|
|
if (!presContext) {
|
|
return;
|
|
}
|
|
|
|
// Only force the layout flush if the frameloader hasn't ever been
|
|
// run through layout.
|
|
if (frame->GetStateBits() & NS_FRAME_FIRST_REFLOW) {
|
|
if (nsCOMPtr<nsIPresShell> shell = presContext->GetPresShell()) {
|
|
shell->FlushPendingNotifications(FlushType::Layout);
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult nsFrameLoader::SwapWithOtherRemoteLoader(
|
|
nsFrameLoader* aOther, nsIFrameLoaderOwner* aThisOwner,
|
|
nsIFrameLoaderOwner* aOtherOwner) {
|
|
MOZ_ASSERT(NS_IsMainThread());
|
|
|
|
#ifdef DEBUG
|
|
RefPtr<nsFrameLoader> first = aThisOwner->GetFrameLoader();
|
|
RefPtr<nsFrameLoader> second = aOtherOwner->GetFrameLoader();
|
|
MOZ_ASSERT(first == this, "aThisOwner must own this");
|
|
MOZ_ASSERT(second == aOther, "aOtherOwner must own aOther");
|
|
#endif
|
|
|
|
Element* ourContent = mOwnerContent;
|
|
Element* otherContent = aOther->mOwnerContent;
|
|
|
|
if (!ourContent || !otherContent) {
|
|
// Can't handle this
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
// Make sure there are no same-origin issues
|
|
bool equal;
|
|
nsresult rv = ourContent->NodePrincipal()->Equals(
|
|
otherContent->NodePrincipal(), &equal);
|
|
if (NS_FAILED(rv) || !equal) {
|
|
// Security problems loom. Just bail on it all
|
|
return NS_ERROR_DOM_SECURITY_ERR;
|
|
}
|
|
|
|
Document* ourDoc = ourContent->GetComposedDoc();
|
|
Document* otherDoc = otherContent->GetComposedDoc();
|
|
if (!ourDoc || !otherDoc) {
|
|
// Again, how odd, given that we had docshells
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
nsIPresShell* ourShell = ourDoc->GetShell();
|
|
nsIPresShell* otherShell = otherDoc->GetShell();
|
|
if (!ourShell || !otherShell) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
if (!mRemoteBrowser || !aOther->mRemoteBrowser) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
if (mRemoteBrowser->IsIsolatedMozBrowserElement() !=
|
|
aOther->mRemoteBrowser->IsIsolatedMozBrowserElement()) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
// When we swap docShells, maybe we have to deal with a new page created just
|
|
// for this operation. In this case, the browser code should already have set
|
|
// the correct userContextId attribute value in the owning element, but our
|
|
// docShell, that has been created way before) doesn't know that that
|
|
// happened.
|
|
// This is the reason why now we must retrieve the correct value from the
|
|
// usercontextid attribute before comparing our originAttributes with the
|
|
// other one.
|
|
OriginAttributes ourOriginAttributes = mRemoteBrowser->OriginAttributesRef();
|
|
rv = PopulateUserContextIdFromAttribute(ourOriginAttributes);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
OriginAttributes otherOriginAttributes =
|
|
aOther->mRemoteBrowser->OriginAttributesRef();
|
|
rv = aOther->PopulateUserContextIdFromAttribute(otherOriginAttributes);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (ourOriginAttributes != otherOriginAttributes) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
bool ourHasHistory =
|
|
mIsTopLevelContent && ourContent->IsXULElement(nsGkAtoms::browser) &&
|
|
!ourContent->HasAttr(kNameSpaceID_None, nsGkAtoms::disablehistory);
|
|
bool otherHasHistory =
|
|
aOther->mIsTopLevelContent &&
|
|
otherContent->IsXULElement(nsGkAtoms::browser) &&
|
|
!otherContent->HasAttr(kNameSpaceID_None, nsGkAtoms::disablehistory);
|
|
if (ourHasHistory != otherHasHistory) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
if (mInSwap || aOther->mInSwap) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
mInSwap = aOther->mInSwap = true;
|
|
|
|
nsIFrame* ourFrame = ourContent->GetPrimaryFrame();
|
|
nsIFrame* otherFrame = otherContent->GetPrimaryFrame();
|
|
if (!ourFrame || !otherFrame) {
|
|
mInSwap = aOther->mInSwap = false;
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
nsSubDocumentFrame* ourFrameFrame = do_QueryFrame(ourFrame);
|
|
if (!ourFrameFrame) {
|
|
mInSwap = aOther->mInSwap = false;
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
rv = ourFrameFrame->BeginSwapDocShells(otherFrame);
|
|
if (NS_FAILED(rv)) {
|
|
mInSwap = aOther->mInSwap = false;
|
|
return rv;
|
|
}
|
|
|
|
nsCOMPtr<nsIBrowserDOMWindow> otherBrowserDOMWindow =
|
|
aOther->mRemoteBrowser->GetBrowserDOMWindow();
|
|
nsCOMPtr<nsIBrowserDOMWindow> browserDOMWindow =
|
|
mRemoteBrowser->GetBrowserDOMWindow();
|
|
|
|
if (!!otherBrowserDOMWindow != !!browserDOMWindow) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
// Destroy browser frame scripts for content leaving a frame with browser API
|
|
if (OwnerIsMozBrowserFrame() && !aOther->OwnerIsMozBrowserFrame()) {
|
|
DestroyBrowserFrameScripts();
|
|
}
|
|
if (!OwnerIsMozBrowserFrame() && aOther->OwnerIsMozBrowserFrame()) {
|
|
aOther->DestroyBrowserFrameScripts();
|
|
}
|
|
|
|
aOther->mRemoteBrowser->SetBrowserDOMWindow(browserDOMWindow);
|
|
mRemoteBrowser->SetBrowserDOMWindow(otherBrowserDOMWindow);
|
|
|
|
#ifdef XP_WIN
|
|
// Native plugin windows used by this remote content need to be reparented.
|
|
if (nsPIDOMWindowOuter* newWin = ourDoc->GetWindow()) {
|
|
RefPtr<nsIWidget> newParent =
|
|
nsGlobalWindowOuter::Cast(newWin)->GetMainWidget();
|
|
const ManagedContainer<mozilla::plugins::PPluginWidgetParent>& plugins =
|
|
aOther->mRemoteBrowser->ManagedPPluginWidgetParent();
|
|
for (auto iter = plugins.ConstIter(); !iter.Done(); iter.Next()) {
|
|
static_cast<mozilla::plugins::PluginWidgetParent*>(iter.Get()->GetKey())
|
|
->SetParent(newParent);
|
|
}
|
|
}
|
|
#endif // XP_WIN
|
|
|
|
MaybeUpdatePrimaryTabParent(eTabParentRemoved);
|
|
aOther->MaybeUpdatePrimaryTabParent(eTabParentRemoved);
|
|
|
|
SetOwnerContent(otherContent);
|
|
aOther->SetOwnerContent(ourContent);
|
|
|
|
mRemoteBrowser->SetOwnerElement(otherContent);
|
|
aOther->mRemoteBrowser->SetOwnerElement(ourContent);
|
|
|
|
// Update window activation state for the swapped owner content.
|
|
Unused << mRemoteBrowser->SendParentActivated(
|
|
ParentWindowIsActive(otherContent->OwnerDoc()));
|
|
Unused << aOther->mRemoteBrowser->SendParentActivated(
|
|
ParentWindowIsActive(ourContent->OwnerDoc()));
|
|
|
|
MaybeUpdatePrimaryTabParent(eTabParentChanged);
|
|
aOther->MaybeUpdatePrimaryTabParent(eTabParentChanged);
|
|
|
|
RefPtr<nsFrameMessageManager> ourMessageManager = mMessageManager;
|
|
RefPtr<nsFrameMessageManager> otherMessageManager = aOther->mMessageManager;
|
|
// Swap and setup things in parent message managers.
|
|
if (ourMessageManager) {
|
|
ourMessageManager->SetCallback(aOther);
|
|
}
|
|
if (otherMessageManager) {
|
|
otherMessageManager->SetCallback(this);
|
|
}
|
|
mMessageManager.swap(aOther->mMessageManager);
|
|
|
|
// Perform the actual swap of the internal refptrs. We keep a strong reference
|
|
// to ourselves to make sure we don't die while we overwrite our reference to
|
|
// ourself.
|
|
RefPtr<nsFrameLoader> kungFuDeathGrip(this);
|
|
aThisOwner->InternalSetFrameLoader(aOther);
|
|
aOtherOwner->InternalSetFrameLoader(kungFuDeathGrip);
|
|
|
|
ourFrameFrame->EndSwapDocShells(otherFrame);
|
|
|
|
ourShell->BackingScaleFactorChanged();
|
|
otherShell->BackingScaleFactorChanged();
|
|
|
|
// Initialize browser API if needed now that owner content has changed.
|
|
InitializeBrowserAPI();
|
|
aOther->InitializeBrowserAPI();
|
|
|
|
mInSwap = aOther->mInSwap = false;
|
|
|
|
// Send an updated tab context since owner content type may have changed.
|
|
MutableTabContext ourContext;
|
|
rv = GetNewTabContext(&ourContext);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
MutableTabContext otherContext;
|
|
rv = aOther->GetNewTabContext(&otherContext);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
// Swap the remoteType property as the frameloaders are being swapped
|
|
nsAutoString ourRemoteType;
|
|
if (!ourContent->GetAttr(kNameSpaceID_None, nsGkAtoms::RemoteType,
|
|
ourRemoteType)) {
|
|
ourRemoteType.AssignLiteral(DEFAULT_REMOTE_TYPE);
|
|
}
|
|
nsAutoString otherRemoteType;
|
|
if (!otherContent->GetAttr(kNameSpaceID_None, nsGkAtoms::RemoteType,
|
|
otherRemoteType)) {
|
|
otherRemoteType.AssignLiteral(DEFAULT_REMOTE_TYPE);
|
|
}
|
|
ourContent->SetAttr(kNameSpaceID_None, nsGkAtoms::RemoteType, otherRemoteType,
|
|
false);
|
|
otherContent->SetAttr(kNameSpaceID_None, nsGkAtoms::RemoteType, ourRemoteType,
|
|
false);
|
|
|
|
Unused << mRemoteBrowser->SendSwappedWithOtherRemoteLoader(
|
|
ourContext.AsIPCTabContext());
|
|
Unused << aOther->mRemoteBrowser->SendSwappedWithOtherRemoteLoader(
|
|
otherContext.AsIPCTabContext());
|
|
return NS_OK;
|
|
}
|
|
|
|
class MOZ_RAII AutoResetInFrameSwap final {
|
|
public:
|
|
AutoResetInFrameSwap(
|
|
nsFrameLoader* aThisFrameLoader, nsFrameLoader* aOtherFrameLoader,
|
|
nsDocShell* aThisDocShell, nsDocShell* aOtherDocShell,
|
|
EventTarget* aThisEventTarget,
|
|
EventTarget* aOtherEventTarget MOZ_GUARD_OBJECT_NOTIFIER_PARAM)
|
|
: mThisFrameLoader(aThisFrameLoader),
|
|
mOtherFrameLoader(aOtherFrameLoader),
|
|
mThisDocShell(aThisDocShell),
|
|
mOtherDocShell(aOtherDocShell),
|
|
mThisEventTarget(aThisEventTarget),
|
|
mOtherEventTarget(aOtherEventTarget) {
|
|
MOZ_GUARD_OBJECT_NOTIFIER_INIT;
|
|
|
|
mThisFrameLoader->mInSwap = true;
|
|
mOtherFrameLoader->mInSwap = true;
|
|
mThisDocShell->SetInFrameSwap(true);
|
|
mOtherDocShell->SetInFrameSwap(true);
|
|
|
|
// Fire pageshow events on still-loading pages, and then fire pagehide
|
|
// events. Note that we do NOT fire these in the normal way, but just fire
|
|
// them on the chrome event handlers.
|
|
nsContentUtils::FirePageShowEvent(mThisDocShell, mThisEventTarget, false);
|
|
nsContentUtils::FirePageShowEvent(mOtherDocShell, mOtherEventTarget, false);
|
|
nsContentUtils::FirePageHideEvent(mThisDocShell, mThisEventTarget);
|
|
nsContentUtils::FirePageHideEvent(mOtherDocShell, mOtherEventTarget);
|
|
}
|
|
|
|
~AutoResetInFrameSwap() {
|
|
nsContentUtils::FirePageShowEvent(mThisDocShell, mThisEventTarget, true);
|
|
nsContentUtils::FirePageShowEvent(mOtherDocShell, mOtherEventTarget, true);
|
|
|
|
mThisFrameLoader->mInSwap = false;
|
|
mOtherFrameLoader->mInSwap = false;
|
|
mThisDocShell->SetInFrameSwap(false);
|
|
mOtherDocShell->SetInFrameSwap(false);
|
|
}
|
|
|
|
private:
|
|
RefPtr<nsFrameLoader> mThisFrameLoader;
|
|
RefPtr<nsFrameLoader> mOtherFrameLoader;
|
|
RefPtr<nsDocShell> mThisDocShell;
|
|
RefPtr<nsDocShell> mOtherDocShell;
|
|
nsCOMPtr<EventTarget> mThisEventTarget;
|
|
nsCOMPtr<EventTarget> mOtherEventTarget;
|
|
MOZ_DECL_USE_GUARD_OBJECT_NOTIFIER
|
|
};
|
|
|
|
nsresult nsFrameLoader::SwapWithOtherLoader(nsFrameLoader* aOther,
|
|
nsIFrameLoaderOwner* aThisOwner,
|
|
nsIFrameLoaderOwner* aOtherOwner) {
|
|
#ifdef DEBUG
|
|
RefPtr<nsFrameLoader> first = aThisOwner->GetFrameLoader();
|
|
RefPtr<nsFrameLoader> second = aOtherOwner->GetFrameLoader();
|
|
MOZ_ASSERT(first == this, "aThisOwner must own this");
|
|
MOZ_ASSERT(second == aOther, "aOtherOwner must own aOther");
|
|
#endif
|
|
|
|
NS_ENSURE_STATE(!mInShow && !aOther->mInShow);
|
|
|
|
if (IsRemoteFrame() != aOther->IsRemoteFrame()) {
|
|
NS_WARNING(
|
|
"Swapping remote and non-remote frames is not currently supported");
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
Element* ourContent = mOwnerContent;
|
|
Element* otherContent = aOther->mOwnerContent;
|
|
|
|
if (!ourContent || !otherContent) {
|
|
// Can't handle this
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
bool ourHasSrcdoc = ourContent->IsHTMLElement(nsGkAtoms::iframe) &&
|
|
ourContent->HasAttr(kNameSpaceID_None, nsGkAtoms::srcdoc);
|
|
bool otherHasSrcdoc =
|
|
otherContent->IsHTMLElement(nsGkAtoms::iframe) &&
|
|
otherContent->HasAttr(kNameSpaceID_None, nsGkAtoms::srcdoc);
|
|
if (ourHasSrcdoc || otherHasSrcdoc) {
|
|
// Ignore this case entirely for now, since we support XUL <-> HTML swapping
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
bool ourFullscreenAllowed =
|
|
ourContent->IsXULElement() ||
|
|
(OwnerIsMozBrowserFrame() &&
|
|
(ourContent->HasAttr(kNameSpaceID_None, nsGkAtoms::allowfullscreen) ||
|
|
ourContent->HasAttr(kNameSpaceID_None, nsGkAtoms::mozallowfullscreen)));
|
|
bool otherFullscreenAllowed =
|
|
otherContent->IsXULElement() ||
|
|
(aOther->OwnerIsMozBrowserFrame() &&
|
|
(otherContent->HasAttr(kNameSpaceID_None, nsGkAtoms::allowfullscreen) ||
|
|
otherContent->HasAttr(kNameSpaceID_None,
|
|
nsGkAtoms::mozallowfullscreen)));
|
|
if (ourFullscreenAllowed != otherFullscreenAllowed) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
bool ourPaymentRequestAllowed =
|
|
ourContent->HasAttr(kNameSpaceID_None, nsGkAtoms::allowpaymentrequest);
|
|
bool otherPaymentRequestAllowed =
|
|
otherContent->HasAttr(kNameSpaceID_None, nsGkAtoms::allowpaymentrequest);
|
|
if (ourPaymentRequestAllowed != otherPaymentRequestAllowed) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
// Divert to a separate path for the remaining steps in the remote case
|
|
if (IsRemoteFrame()) {
|
|
MOZ_ASSERT(aOther->IsRemoteFrame());
|
|
return SwapWithOtherRemoteLoader(aOther, aThisOwner, aOtherOwner);
|
|
}
|
|
|
|
// Make sure there are no same-origin issues
|
|
bool equal;
|
|
nsresult rv = ourContent->NodePrincipal()->Equals(
|
|
otherContent->NodePrincipal(), &equal);
|
|
if (NS_FAILED(rv) || !equal) {
|
|
// Security problems loom. Just bail on it all
|
|
return NS_ERROR_DOM_SECURITY_ERR;
|
|
}
|
|
|
|
RefPtr<nsDocShell> ourDocshell =
|
|
static_cast<nsDocShell*>(GetExistingDocShell());
|
|
RefPtr<nsDocShell> otherDocshell =
|
|
static_cast<nsDocShell*>(aOther->GetExistingDocShell());
|
|
if (!ourDocshell || !otherDocshell) {
|
|
// How odd
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
// To avoid having to mess with session history, avoid swapping
|
|
// frameloaders that don't correspond to root same-type docshells,
|
|
// unless both roots have session history disabled.
|
|
nsCOMPtr<nsIDocShellTreeItem> ourRootTreeItem, otherRootTreeItem;
|
|
ourDocshell->GetSameTypeRootTreeItem(getter_AddRefs(ourRootTreeItem));
|
|
otherDocshell->GetSameTypeRootTreeItem(getter_AddRefs(otherRootTreeItem));
|
|
nsCOMPtr<nsIWebNavigation> ourRootWebnav = do_QueryInterface(ourRootTreeItem);
|
|
nsCOMPtr<nsIWebNavigation> otherRootWebnav =
|
|
do_QueryInterface(otherRootTreeItem);
|
|
|
|
if (!ourRootWebnav || !otherRootWebnav) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
RefPtr<ChildSHistory> ourHistory = ourRootWebnav->GetSessionHistory();
|
|
RefPtr<ChildSHistory> otherHistory = otherRootWebnav->GetSessionHistory();
|
|
|
|
if ((ourRootTreeItem != ourDocshell || otherRootTreeItem != otherDocshell) &&
|
|
(ourHistory || otherHistory)) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
// Also make sure that the two docshells are the same type. Otherwise
|
|
// swapping is certainly not safe. If this needs to be changed then
|
|
// the code below needs to be audited as it assumes identical types.
|
|
int32_t ourType = ourDocshell->ItemType();
|
|
int32_t otherType = otherDocshell->ItemType();
|
|
if (ourType != otherType) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
// One more twist here. Setting up the right treeowners in a heterogeneous
|
|
// tree is a bit of a pain. So make sure that if ourType is not
|
|
// nsIDocShellTreeItem::typeContent then all of our descendants are the same
|
|
// type as us.
|
|
if (ourType != nsIDocShellTreeItem::typeContent &&
|
|
(!AllDescendantsOfType(ourDocshell, ourType) ||
|
|
!AllDescendantsOfType(otherDocshell, otherType))) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
// Save off the tree owners, frame elements, chrome event handlers, and
|
|
// docshell and document parents before doing anything else.
|
|
nsCOMPtr<nsIDocShellTreeOwner> ourOwner, otherOwner;
|
|
ourDocshell->GetTreeOwner(getter_AddRefs(ourOwner));
|
|
otherDocshell->GetTreeOwner(getter_AddRefs(otherOwner));
|
|
// Note: it's OK to have null treeowners.
|
|
|
|
nsCOMPtr<nsIDocShellTreeItem> ourParentItem, otherParentItem;
|
|
ourDocshell->GetParent(getter_AddRefs(ourParentItem));
|
|
otherDocshell->GetParent(getter_AddRefs(otherParentItem));
|
|
if (!ourParentItem || !otherParentItem) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
// Make sure our parents are the same type too
|
|
int32_t ourParentType = ourParentItem->ItemType();
|
|
int32_t otherParentType = otherParentItem->ItemType();
|
|
if (ourParentType != otherParentType) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
nsCOMPtr<nsPIDOMWindowOuter> ourWindow = ourDocshell->GetWindow();
|
|
nsCOMPtr<nsPIDOMWindowOuter> otherWindow = otherDocshell->GetWindow();
|
|
|
|
nsCOMPtr<Element> ourFrameElement = ourWindow->GetFrameElementInternal();
|
|
nsCOMPtr<Element> otherFrameElement = otherWindow->GetFrameElementInternal();
|
|
|
|
nsCOMPtr<EventTarget> ourChromeEventHandler =
|
|
ourWindow->GetChromeEventHandler();
|
|
nsCOMPtr<EventTarget> otherChromeEventHandler =
|
|
otherWindow->GetChromeEventHandler();
|
|
|
|
nsCOMPtr<EventTarget> ourEventTarget = ourWindow->GetParentTarget();
|
|
nsCOMPtr<EventTarget> otherEventTarget = otherWindow->GetParentTarget();
|
|
|
|
NS_ASSERTION(SameCOMIdentity(ourFrameElement, ourContent) &&
|
|
SameCOMIdentity(otherFrameElement, otherContent) &&
|
|
SameCOMIdentity(ourChromeEventHandler, ourContent) &&
|
|
SameCOMIdentity(otherChromeEventHandler, otherContent),
|
|
"How did that happen, exactly?");
|
|
|
|
nsCOMPtr<Document> ourChildDocument = ourWindow->GetExtantDoc();
|
|
nsCOMPtr<Document> otherChildDocument = otherWindow->GetExtantDoc();
|
|
if (!ourChildDocument || !otherChildDocument) {
|
|
// This shouldn't be happening
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
nsCOMPtr<Document> ourParentDocument = ourChildDocument->GetParentDocument();
|
|
nsCOMPtr<Document> otherParentDocument =
|
|
otherChildDocument->GetParentDocument();
|
|
|
|
// Make sure to swap docshells between the two frames.
|
|
Document* ourDoc = ourContent->GetComposedDoc();
|
|
Document* otherDoc = otherContent->GetComposedDoc();
|
|
if (!ourDoc || !otherDoc) {
|
|
// Again, how odd, given that we had docshells
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
NS_ASSERTION(ourDoc == ourParentDocument, "Unexpected parent document");
|
|
NS_ASSERTION(otherDoc == otherParentDocument, "Unexpected parent document");
|
|
|
|
nsIPresShell* ourShell = ourDoc->GetShell();
|
|
nsIPresShell* otherShell = otherDoc->GetShell();
|
|
if (!ourShell || !otherShell) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
if (ourDocshell->GetIsIsolatedMozBrowserElement() !=
|
|
otherDocshell->GetIsIsolatedMozBrowserElement()) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
// When we swap docShells, maybe we have to deal with a new page created just
|
|
// for this operation. In this case, the browser code should already have set
|
|
// the correct userContextId attribute value in the owning element, but our
|
|
// docShell, that has been created way before) doesn't know that that
|
|
// happened.
|
|
// This is the reason why now we must retrieve the correct value from the
|
|
// usercontextid attribute before comparing our originAttributes with the
|
|
// other one.
|
|
OriginAttributes ourOriginAttributes = ourDocshell->GetOriginAttributes();
|
|
rv = PopulateUserContextIdFromAttribute(ourOriginAttributes);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
OriginAttributes otherOriginAttributes = otherDocshell->GetOriginAttributes();
|
|
rv = aOther->PopulateUserContextIdFromAttribute(otherOriginAttributes);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (ourOriginAttributes != otherOriginAttributes) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
if (mInSwap || aOther->mInSwap) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
AutoResetInFrameSwap autoFrameSwap(this, aOther, ourDocshell, otherDocshell,
|
|
ourEventTarget, otherEventTarget);
|
|
|
|
nsIFrame* ourFrame = ourContent->GetPrimaryFrame();
|
|
nsIFrame* otherFrame = otherContent->GetPrimaryFrame();
|
|
if (!ourFrame || !otherFrame) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
nsSubDocumentFrame* ourFrameFrame = do_QueryFrame(ourFrame);
|
|
if (!ourFrameFrame) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
// OK. First begin to swap the docshells in the two nsIFrames
|
|
rv = ourFrameFrame->BeginSwapDocShells(otherFrame);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
|
|
// Destroy browser frame scripts for content leaving a frame with browser API
|
|
if (OwnerIsMozBrowserFrame() && !aOther->OwnerIsMozBrowserFrame()) {
|
|
DestroyBrowserFrameScripts();
|
|
}
|
|
if (!OwnerIsMozBrowserFrame() && aOther->OwnerIsMozBrowserFrame()) {
|
|
aOther->DestroyBrowserFrameScripts();
|
|
}
|
|
|
|
// Now move the docshells to the right docshell trees. Note that this
|
|
// resets their treeowners to null.
|
|
ourParentItem->RemoveChild(ourDocshell);
|
|
otherParentItem->RemoveChild(otherDocshell);
|
|
if (ourType == nsIDocShellTreeItem::typeContent) {
|
|
ourOwner->ContentShellRemoved(ourDocshell);
|
|
otherOwner->ContentShellRemoved(otherDocshell);
|
|
}
|
|
|
|
ourParentItem->AddChild(otherDocshell);
|
|
otherParentItem->AddChild(ourDocshell);
|
|
|
|
// Restore the correct chrome event handlers.
|
|
ourDocshell->SetChromeEventHandler(otherChromeEventHandler);
|
|
otherDocshell->SetChromeEventHandler(ourChromeEventHandler);
|
|
// Restore the correct treeowners
|
|
// (and also chrome event handlers for content frames only).
|
|
SetTreeOwnerAndChromeEventHandlerOnDocshellTree(
|
|
ourDocshell, otherOwner,
|
|
ourType == nsIDocShellTreeItem::typeContent
|
|
? otherChromeEventHandler.get()
|
|
: nullptr);
|
|
SetTreeOwnerAndChromeEventHandlerOnDocshellTree(
|
|
otherDocshell, ourOwner,
|
|
ourType == nsIDocShellTreeItem::typeContent ? ourChromeEventHandler.get()
|
|
: nullptr);
|
|
|
|
// Switch the owner content before we start calling AddTreeItemToTreeOwner.
|
|
// Note that we rely on this to deal with setting mObservingOwnerContent to
|
|
// false and calling RemoveMutationObserver as needed.
|
|
SetOwnerContent(otherContent);
|
|
aOther->SetOwnerContent(ourContent);
|
|
|
|
AddTreeItemToTreeOwner(ourDocshell, otherOwner);
|
|
aOther->AddTreeItemToTreeOwner(otherDocshell, ourOwner);
|
|
|
|
// SetSubDocumentFor nulls out parent documents on the old child doc if a
|
|
// new non-null document is passed in, so just go ahead and remove both
|
|
// kids before reinserting in the parent subdoc maps, to avoid
|
|
// complications.
|
|
ourParentDocument->SetSubDocumentFor(ourContent, nullptr);
|
|
otherParentDocument->SetSubDocumentFor(otherContent, nullptr);
|
|
ourParentDocument->SetSubDocumentFor(ourContent, otherChildDocument);
|
|
otherParentDocument->SetSubDocumentFor(otherContent, ourChildDocument);
|
|
|
|
ourWindow->SetFrameElementInternal(otherFrameElement);
|
|
otherWindow->SetFrameElementInternal(ourFrameElement);
|
|
|
|
RefPtr<nsFrameMessageManager> ourMessageManager = mMessageManager;
|
|
RefPtr<nsFrameMessageManager> otherMessageManager = aOther->mMessageManager;
|
|
// Swap pointers in child message managers.
|
|
if (mChildMessageManager) {
|
|
InProcessTabChildMessageManager* tabChild = mChildMessageManager;
|
|
tabChild->SetOwner(otherContent);
|
|
tabChild->SetChromeMessageManager(otherMessageManager);
|
|
}
|
|
if (aOther->mChildMessageManager) {
|
|
InProcessTabChildMessageManager* otherTabChild =
|
|
aOther->mChildMessageManager;
|
|
otherTabChild->SetOwner(ourContent);
|
|
otherTabChild->SetChromeMessageManager(ourMessageManager);
|
|
}
|
|
// Swap and setup things in parent message managers.
|
|
if (mMessageManager) {
|
|
mMessageManager->SetCallback(aOther);
|
|
}
|
|
if (aOther->mMessageManager) {
|
|
aOther->mMessageManager->SetCallback(this);
|
|
}
|
|
mMessageManager.swap(aOther->mMessageManager);
|
|
|
|
// Perform the actual swap of the internal refptrs. We keep a strong reference
|
|
// to ourselves to make sure we don't die while we overwrite our reference to
|
|
// ourself.
|
|
RefPtr<nsFrameLoader> kungFuDeathGrip(this);
|
|
aThisOwner->InternalSetFrameLoader(aOther);
|
|
aOtherOwner->InternalSetFrameLoader(kungFuDeathGrip);
|
|
|
|
// Drop any cached content viewers in the two session histories.
|
|
if (ourHistory) {
|
|
ourHistory->EvictLocalContentViewers();
|
|
}
|
|
if (otherHistory) {
|
|
otherHistory->EvictLocalContentViewers();
|
|
}
|
|
|
|
NS_ASSERTION(ourFrame == ourContent->GetPrimaryFrame() &&
|
|
otherFrame == otherContent->GetPrimaryFrame(),
|
|
"changed primary frame");
|
|
|
|
ourFrameFrame->EndSwapDocShells(otherFrame);
|
|
|
|
// If the content being swapped came from windows on two screens with
|
|
// incompatible backing resolution (e.g. dragging a tab between windows on
|
|
// hi-dpi and low-dpi screens), it will have style data that is based on
|
|
// the wrong appUnitsPerDevPixel value. So we tell the PresShells that their
|
|
// backing scale factor may have changed. (Bug 822266)
|
|
ourShell->BackingScaleFactorChanged();
|
|
otherShell->BackingScaleFactorChanged();
|
|
|
|
// Initialize browser API if needed now that owner content has changed
|
|
InitializeBrowserAPI();
|
|
aOther->InitializeBrowserAPI();
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsFrameLoader::Destroy() { StartDestroy(); }
|
|
|
|
class nsFrameLoaderDestroyRunnable : public Runnable {
|
|
enum DestroyPhase {
|
|
// See the implementation of Run for an explanation of these phases.
|
|
eDestroyDocShell,
|
|
eWaitForUnloadMessage,
|
|
eDestroyComplete
|
|
};
|
|
|
|
RefPtr<nsFrameLoader> mFrameLoader;
|
|
DestroyPhase mPhase;
|
|
|
|
public:
|
|
explicit nsFrameLoaderDestroyRunnable(nsFrameLoader* aFrameLoader)
|
|
: mozilla::Runnable("nsFrameLoaderDestroyRunnable"),
|
|
mFrameLoader(aFrameLoader),
|
|
mPhase(eDestroyDocShell) {}
|
|
|
|
NS_IMETHOD Run() override;
|
|
};
|
|
|
|
void nsFrameLoader::StartDestroy() {
|
|
// nsFrameLoader::StartDestroy is called just before the frameloader is
|
|
// detached from the <browser> element. Destruction continues in phases via
|
|
// the nsFrameLoaderDestroyRunnable.
|
|
|
|
if (mDestroyCalled) {
|
|
return;
|
|
}
|
|
mDestroyCalled = true;
|
|
|
|
// After this point, we return an error when trying to send a message using
|
|
// the message manager on the frame.
|
|
if (mMessageManager) {
|
|
mMessageManager->Close();
|
|
}
|
|
|
|
// Retain references to the <browser> element and the frameloader in case we
|
|
// receive any messages from the message manager on the frame. These
|
|
// references are dropped in DestroyComplete.
|
|
if (mChildMessageManager || mRemoteBrowser) {
|
|
mOwnerContentStrong = mOwnerContent;
|
|
if (mRemoteBrowser) {
|
|
mRemoteBrowser->CacheFrameLoader(this);
|
|
}
|
|
if (mChildMessageManager) {
|
|
mChildMessageManager->CacheFrameLoader(this);
|
|
}
|
|
}
|
|
|
|
// If the TabParent has installed any event listeners on the window, this is
|
|
// its last chance to remove them while we're still in the document.
|
|
if (mRemoteBrowser) {
|
|
mRemoteBrowser->RemoveWindowListeners();
|
|
}
|
|
|
|
nsCOMPtr<Document> doc;
|
|
bool dynamicSubframeRemoval = false;
|
|
if (mOwnerContent) {
|
|
doc = mOwnerContent->OwnerDoc();
|
|
dynamicSubframeRemoval = !mIsTopLevelContent && !doc->InUnlinkOrDeletion();
|
|
doc->SetSubDocumentFor(mOwnerContent, nullptr);
|
|
MaybeUpdatePrimaryTabParent(eTabParentRemoved);
|
|
SetOwnerContent(nullptr);
|
|
}
|
|
|
|
// Seems like this is a dynamic frame removal.
|
|
if (dynamicSubframeRemoval) {
|
|
if (mDocShell) {
|
|
mDocShell->RemoveFromSessionHistory();
|
|
}
|
|
}
|
|
|
|
// Let the tree owner know we're gone.
|
|
if (mIsTopLevelContent) {
|
|
if (mDocShell) {
|
|
nsCOMPtr<nsIDocShellTreeItem> parentItem;
|
|
mDocShell->GetParent(getter_AddRefs(parentItem));
|
|
nsCOMPtr<nsIDocShellTreeOwner> owner = do_GetInterface(parentItem);
|
|
if (owner) {
|
|
owner->ContentShellRemoved(mDocShell);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Let our window know that we are gone
|
|
if (mDocShell) {
|
|
nsCOMPtr<nsPIDOMWindowOuter> win_private(mDocShell->GetWindow());
|
|
if (win_private) {
|
|
win_private->SetFrameElementInternal(nullptr);
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<nsIRunnable> destroyRunnable =
|
|
new nsFrameLoaderDestroyRunnable(this);
|
|
if (mNeedsAsyncDestroy || !doc ||
|
|
NS_FAILED(doc->FinalizeFrameLoader(this, destroyRunnable))) {
|
|
NS_DispatchToCurrentThread(destroyRunnable);
|
|
}
|
|
}
|
|
|
|
nsresult nsFrameLoaderDestroyRunnable::Run() {
|
|
switch (mPhase) {
|
|
case eDestroyDocShell:
|
|
mFrameLoader->DestroyDocShell();
|
|
|
|
// In the out-of-process case, TabParent will eventually call
|
|
// DestroyComplete once it receives a __delete__ message from the child.
|
|
// In the in-process case, we dispatch a series of runnables to ensure
|
|
// that DestroyComplete gets called at the right time. The frame loader is
|
|
// kept alive by mFrameLoader during this time.
|
|
if (mFrameLoader->mChildMessageManager) {
|
|
// When the docshell is destroyed, NotifyWindowIDDestroyed is called to
|
|
// asynchronously notify {outer,inner}-window-destroyed via a runnable.
|
|
// We don't want DestroyComplete to run until after those runnables have
|
|
// run. Since we're enqueueing ourselves after the window-destroyed
|
|
// runnables are enqueued, we're guaranteed to run after.
|
|
mPhase = eWaitForUnloadMessage;
|
|
NS_DispatchToCurrentThread(this);
|
|
}
|
|
break;
|
|
|
|
case eWaitForUnloadMessage:
|
|
// The *-window-destroyed observers have finished running at this
|
|
// point. However, it's possible that a *-window-destroyed observer might
|
|
// have sent a message using the message manager. These messages might not
|
|
// have been processed yet. So we enqueue ourselves again to ensure that
|
|
// DestroyComplete runs after all messages sent by *-window-destroyed
|
|
// observers have been processed.
|
|
mPhase = eDestroyComplete;
|
|
NS_DispatchToCurrentThread(this);
|
|
break;
|
|
|
|
case eDestroyComplete:
|
|
// Now that all messages sent by unload listeners and window destroyed
|
|
// observers have been processed, we disconnect the message manager and
|
|
// finish destruction.
|
|
mFrameLoader->DestroyComplete();
|
|
break;
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsFrameLoader::DestroyDocShell() {
|
|
// This code runs after the frameloader has been detached from the <browser>
|
|
// element. We postpone this work because we may not be allowed to run
|
|
// script at that time.
|
|
|
|
// Ask the TabChild to fire the frame script "unload" event, destroy its
|
|
// docshell, and finally destroy the PBrowser actor. This eventually leads to
|
|
// nsFrameLoader::DestroyComplete being called.
|
|
if (mRemoteBrowser) {
|
|
mRemoteBrowser->Destroy();
|
|
}
|
|
|
|
// Fire the "unload" event if we're in-process.
|
|
if (mChildMessageManager) {
|
|
mChildMessageManager->FireUnloadEvent();
|
|
}
|
|
|
|
// Destroy the docshell.
|
|
if (mDocShell) {
|
|
mDocShell->Destroy();
|
|
}
|
|
mDocShell = nullptr;
|
|
|
|
if (mChildMessageManager) {
|
|
// Stop handling events in the in-process frame script.
|
|
mChildMessageManager->DisconnectEventListeners();
|
|
}
|
|
}
|
|
|
|
void nsFrameLoader::DestroyComplete() {
|
|
// We get here, as part of StartDestroy, after the docshell has been destroyed
|
|
// and all message manager messages sent during docshell destruction have been
|
|
// dispatched. We also get here if the child process crashes. In the latter
|
|
// case, StartDestroy might not have been called.
|
|
|
|
// Drop the strong references created in StartDestroy.
|
|
if (mChildMessageManager || mRemoteBrowser) {
|
|
mOwnerContentStrong = nullptr;
|
|
if (mRemoteBrowser) {
|
|
mRemoteBrowser->CacheFrameLoader(nullptr);
|
|
}
|
|
if (mChildMessageManager) {
|
|
mChildMessageManager->CacheFrameLoader(nullptr);
|
|
}
|
|
}
|
|
|
|
// Call TabParent::Destroy if we haven't already (in case of a crash).
|
|
if (mRemoteBrowser) {
|
|
mRemoteBrowser->SetOwnerElement(nullptr);
|
|
mRemoteBrowser->Destroy();
|
|
mRemoteBrowser = nullptr;
|
|
}
|
|
|
|
if (mMessageManager) {
|
|
mMessageManager->Disconnect();
|
|
}
|
|
|
|
if (mChildMessageManager) {
|
|
mChildMessageManager->Disconnect();
|
|
}
|
|
|
|
mMessageManager = nullptr;
|
|
mChildMessageManager = nullptr;
|
|
}
|
|
|
|
void nsFrameLoader::SetOwnerContent(Element* aContent) {
|
|
if (mObservingOwnerContent) {
|
|
mObservingOwnerContent = false;
|
|
mOwnerContent->RemoveMutationObserver(this);
|
|
}
|
|
mOwnerContent = aContent;
|
|
|
|
AutoJSAPI jsapi;
|
|
jsapi.Init();
|
|
|
|
JS::RootedObject wrapper(jsapi.cx(), GetWrapper());
|
|
if (wrapper) {
|
|
JSAutoRealm ar(jsapi.cx(), wrapper);
|
|
IgnoredErrorResult rv;
|
|
UpdateReflectorGlobal(jsapi.cx(), wrapper, rv);
|
|
Unused << NS_WARN_IF(rv.Failed());
|
|
}
|
|
|
|
if (RenderFrame* rfp = GetCurrentRenderFrame()) {
|
|
rfp->OwnerContentChanged(aContent);
|
|
}
|
|
}
|
|
|
|
bool nsFrameLoader::OwnerIsMozBrowserFrame() {
|
|
nsCOMPtr<nsIMozBrowserFrame> browserFrame = do_QueryInterface(mOwnerContent);
|
|
return browserFrame ? browserFrame->GetReallyIsBrowser() : false;
|
|
}
|
|
|
|
bool nsFrameLoader::OwnerIsIsolatedMozBrowserFrame() {
|
|
nsCOMPtr<nsIMozBrowserFrame> browserFrame = do_QueryInterface(mOwnerContent);
|
|
if (!browserFrame) {
|
|
return false;
|
|
}
|
|
|
|
if (!OwnerIsMozBrowserFrame()) {
|
|
return false;
|
|
}
|
|
|
|
bool isolated = browserFrame->GetIsolated();
|
|
if (isolated) {
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool nsFrameLoader::ShouldUseRemoteProcess() {
|
|
if (IsForJSPlugin()) {
|
|
return true;
|
|
}
|
|
|
|
if (PR_GetEnv("MOZ_DISABLE_OOP_TABS") ||
|
|
Preferences::GetBool("dom.ipc.tabs.disabled", false)) {
|
|
return false;
|
|
}
|
|
|
|
// Don't try to launch nested children if we don't have OMTC.
|
|
// They won't render!
|
|
if (XRE_IsContentProcess() &&
|
|
!CompositorBridgeChild::ChildProcessHasCompositorBridge()) {
|
|
return false;
|
|
}
|
|
|
|
if (XRE_IsContentProcess() &&
|
|
!(PR_GetEnv("MOZ_NESTED_OOP_TABS") ||
|
|
Preferences::GetBool("dom.ipc.tabs.nested.enabled", false))) {
|
|
return false;
|
|
}
|
|
|
|
// If we're an <iframe mozbrowser> and we don't have a "remote" attribute,
|
|
// fall back to the default.
|
|
if (OwnerIsMozBrowserFrame() &&
|
|
!mOwnerContent->HasAttr(kNameSpaceID_None, nsGkAtoms::remote)) {
|
|
return Preferences::GetBool("dom.ipc.browser_frames.oop_by_default", false);
|
|
}
|
|
|
|
// Otherwise, we're remote if we have "remote=true" and we're either a
|
|
// browser frame or a XUL element.
|
|
return (OwnerIsMozBrowserFrame() ||
|
|
mOwnerContent->GetNameSpaceID() == kNameSpaceID_XUL) &&
|
|
mOwnerContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::remote,
|
|
nsGkAtoms::_true, eCaseMatters);
|
|
}
|
|
|
|
bool nsFrameLoader::IsRemoteFrame() {
|
|
if (mRemoteFrame) {
|
|
MOZ_ASSERT(!mDocShell, "Found a remote frame with a DocShell");
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static already_AddRefed<BrowsingContext> CreateBrowsingContext(
|
|
BrowsingContext* aParentContext, BrowsingContext* aOpenerContext,
|
|
const nsAString& aName, bool aIsContent) {
|
|
// If we're content but our parent isn't, we're going to want to start a new
|
|
// browsing context tree.
|
|
if (aIsContent && !aParentContext->IsContent()) {
|
|
aParentContext = nullptr;
|
|
}
|
|
|
|
BrowsingContext::Type type = aIsContent ? BrowsingContext::Type::Content
|
|
: BrowsingContext::Type::Chrome;
|
|
|
|
return BrowsingContext::Create(aParentContext, aOpenerContext, aName, type);
|
|
}
|
|
|
|
nsresult nsFrameLoader::MaybeCreateDocShell() {
|
|
if (mDocShell) {
|
|
return NS_OK;
|
|
}
|
|
if (IsRemoteFrame()) {
|
|
return NS_OK;
|
|
}
|
|
NS_ENSURE_STATE(!mDestroyCalled);
|
|
|
|
// Get our parent docshell off the document of mOwnerContent
|
|
// XXXbz this is such a total hack.... We really need to have a
|
|
// better setup for doing this.
|
|
Document* doc = mOwnerContent->OwnerDoc();
|
|
|
|
MOZ_RELEASE_ASSERT(!doc->IsResourceDoc(), "We shouldn't even exist");
|
|
|
|
// Check if the document still has a window since it is possible for an
|
|
// iframe to be inserted and cause the creation of the docshell in a
|
|
// partially unloaded document (see Bug 1305237 comment 127).
|
|
if (!doc->IsStaticDocument() &&
|
|
(!doc->GetWindow() || !mOwnerContent->IsInComposedDoc())) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
if (!doc->IsActive()) {
|
|
// Don't allow subframe loads in non-active documents.
|
|
// (See bug 610571 comment 5.)
|
|
return NS_ERROR_NOT_AVAILABLE;
|
|
}
|
|
|
|
// Determine our parent nsDocShell
|
|
RefPtr<nsDocShell> parentDocShell = nsDocShell::Cast(doc->GetDocShell());
|
|
if (NS_WARN_IF(!parentDocShell)) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
RefPtr<BrowsingContext> parentBC = parentDocShell->GetBrowsingContext();
|
|
MOZ_ASSERT(parentBC, "docShell must have BrowsingContext");
|
|
|
|
// Determine the frame name for the new browsing context.
|
|
nsAutoString frameName;
|
|
|
|
int32_t namespaceID = mOwnerContent->GetNameSpaceID();
|
|
if (namespaceID == kNameSpaceID_XHTML && !mOwnerContent->IsInHTMLDocument()) {
|
|
mOwnerContent->GetAttr(kNameSpaceID_None, nsGkAtoms::id, frameName);
|
|
} else {
|
|
mOwnerContent->GetAttr(kNameSpaceID_None, nsGkAtoms::name, frameName);
|
|
// XXX if no NAME then use ID, after a transition period this will be
|
|
// changed so that XUL only uses ID too (bug 254284).
|
|
if (frameName.IsEmpty() && namespaceID == kNameSpaceID_XUL) {
|
|
mOwnerContent->GetAttr(kNameSpaceID_None, nsGkAtoms::id, frameName);
|
|
}
|
|
}
|
|
|
|
// Check if our new context is chrome or content
|
|
bool isContent = parentBC->IsContent() ||
|
|
mOwnerContent->AttrValueIs(kNameSpaceID_None, TypeAttrName(),
|
|
nsGkAtoms::content, eIgnoreCase);
|
|
|
|
// Force mozbrowser frames to always be content, even if the mozbrowser
|
|
// interfaces are disabled.
|
|
nsCOMPtr<nsIMozBrowserFrame> mozbrowser =
|
|
mOwnerContent->GetAsMozBrowserFrame();
|
|
if (!isContent && mozbrowser) {
|
|
mozbrowser->GetMozbrowser(&isContent);
|
|
}
|
|
|
|
RefPtr<BrowsingContext> openerBC =
|
|
mOpener ? mOpener->GetBrowsingContext() : nullptr;
|
|
RefPtr<BrowsingContext> browsingContext =
|
|
CreateBrowsingContext(parentBC, openerBC, frameName, isContent);
|
|
|
|
mDocShell = nsDocShell::Create(browsingContext);
|
|
NS_ENSURE_TRUE(mDocShell, NS_ERROR_FAILURE);
|
|
|
|
mIsTopLevelContent = isContent && !parentBC->IsContent();
|
|
if (!mNetworkCreated && !mIsTopLevelContent) {
|
|
mDocShell->SetCreatedDynamically(true);
|
|
}
|
|
|
|
if (mIsTopLevelContent) {
|
|
// Manually add ourselves to our parent's docshell, as BrowsingContext won't
|
|
// have done this for us.
|
|
//
|
|
// XXX(nika): Consider removing the DocShellTree in the future, for
|
|
// consistency between local and remote frames..
|
|
parentDocShell->AddChild(mDocShell);
|
|
}
|
|
|
|
// Now that we are part of the DocShellTree, attach our DocShell to our
|
|
// parent's TreeOwner.
|
|
nsCOMPtr<nsIDocShellTreeOwner> parentTreeOwner;
|
|
parentDocShell->GetTreeOwner(getter_AddRefs(parentTreeOwner));
|
|
AddTreeItemToTreeOwner(mDocShell, parentTreeOwner);
|
|
|
|
// Make sure all nsDocShells have links back to the content element in the
|
|
// nearest enclosing chrome shell.
|
|
RefPtr<EventTarget> chromeEventHandler;
|
|
if (parentBC->IsContent()) {
|
|
// Our parent shell is a content shell. Get the chrome event handler from it
|
|
// and use that for our shell as well.
|
|
parentDocShell->GetChromeEventHandler(getter_AddRefs(chromeEventHandler));
|
|
} else {
|
|
// Our parent shell is a chrome shell. It is therefore our nearest enclosing
|
|
// chrome shell.
|
|
chromeEventHandler = mOwnerContent;
|
|
}
|
|
|
|
mDocShell->SetChromeEventHandler(chromeEventHandler);
|
|
|
|
// This is nasty, this code (the mDocShell->GetWindow() below)
|
|
// *must* come *after* the above call to
|
|
// mDocShell->SetChromeEventHandler() for the global window to get
|
|
// the right chrome event handler.
|
|
|
|
// Tell the window about the frame that hosts it.
|
|
nsCOMPtr<nsPIDOMWindowOuter> newWindow = mDocShell->GetWindow();
|
|
if (NS_WARN_IF(!newWindow)) {
|
|
// Do not call Destroy() here. See bug 472312.
|
|
NS_WARNING("Something wrong when creating the docshell for a frameloader!");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
newWindow->SetFrameElementInternal(mOwnerContent);
|
|
|
|
// Set the opener window if we have one provided here XXX(nika): We
|
|
// should tell our BrowsingContext this as we create it.
|
|
// TODO(farre): Remove this when nsGlobalWindowOuter::GetOpenerWindowOuter
|
|
// starts using BrowsingContext::GetOpener.
|
|
if (mOpener) {
|
|
newWindow->SetOpenerWindow(mOpener, true);
|
|
mOpener = nullptr;
|
|
}
|
|
|
|
// Allow scripts to close the docshell if specified.
|
|
if (mOwnerContent->IsXULElement(nsGkAtoms::browser) &&
|
|
mOwnerContent->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::allowscriptstoclose,
|
|
nsGkAtoms::_true, eCaseMatters)) {
|
|
nsGlobalWindowOuter::Cast(newWindow)->AllowScriptsToClose();
|
|
}
|
|
|
|
// This is kinda whacky, this call doesn't really create anything,
|
|
// but it must be called to make sure things are properly
|
|
// initialized.
|
|
RefPtr<nsDocShell> docShell = mDocShell;
|
|
if (NS_FAILED(docShell->Create())) {
|
|
// Do not call Destroy() here. See bug 472312.
|
|
NS_WARNING("Something wrong when creating the docshell for a frameloader!");
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// If we are an in-process browser, we want to set up our session history. We
|
|
// do this by creating both the child SHistory (which is in the nsDocShell),
|
|
// and creating the corresponding in-process ParentSHistory.
|
|
if (mIsTopLevelContent && mOwnerContent->IsXULElement(nsGkAtoms::browser) &&
|
|
!mOwnerContent->HasAttr(kNameSpaceID_None, nsGkAtoms::disablehistory)) {
|
|
// XXX(nika): Set this up more explicitly?
|
|
nsresult rv = mDocShell->InitSessionHistory();
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
mParentSHistory = new ParentSHistory(this);
|
|
}
|
|
|
|
OriginAttributes attrs;
|
|
if (parentDocShell->ItemType() == mDocShell->ItemType()) {
|
|
attrs = parentDocShell->GetOriginAttributes();
|
|
}
|
|
|
|
// Inherit origin attributes from parent document if
|
|
// 1. It's in a content docshell.
|
|
// 2. its nodePrincipal is not a SystemPrincipal.
|
|
// 3. It's not a mozbrowser frame.
|
|
//
|
|
// For example, firstPartyDomain is computed from top-level document, it
|
|
// doesn't exist in the top-level docshell.
|
|
if (parentBC->IsContent() &&
|
|
!nsContentUtils::IsSystemPrincipal(doc->NodePrincipal()) &&
|
|
!OwnerIsMozBrowserFrame()) {
|
|
OriginAttributes oa = doc->NodePrincipal()->OriginAttributesRef();
|
|
|
|
// Assert on the firstPartyDomain from top-level docshell should be empty
|
|
MOZ_ASSERT_IF(mIsTopLevelContent, attrs.mFirstPartyDomain.IsEmpty());
|
|
|
|
// So far we want to make sure Inherit doesn't override any other origin
|
|
// attribute than firstPartyDomain.
|
|
MOZ_ASSERT(attrs.mAppId == oa.mAppId,
|
|
"docshell and document should have the same appId attribute.");
|
|
MOZ_ASSERT(
|
|
attrs.mUserContextId == oa.mUserContextId,
|
|
"docshell and document should have the same userContextId attribute.");
|
|
MOZ_ASSERT(attrs.mInIsolatedMozBrowser == oa.mInIsolatedMozBrowser,
|
|
"docshell and document should have the same "
|
|
"inIsolatedMozBrowser attribute.");
|
|
MOZ_ASSERT(attrs.mPrivateBrowsingId == oa.mPrivateBrowsingId,
|
|
"docshell and document should have the same privateBrowsingId "
|
|
"attribute.");
|
|
|
|
attrs = oa;
|
|
}
|
|
|
|
if (OwnerIsMozBrowserFrame()) {
|
|
attrs.mAppId = nsIScriptSecurityManager::NO_APP_ID;
|
|
attrs.mInIsolatedMozBrowser = OwnerIsIsolatedMozBrowserFrame();
|
|
mDocShell->SetFrameType(nsIDocShell::FRAME_TYPE_BROWSER);
|
|
} else {
|
|
nsCOMPtr<nsIDocShellTreeItem> parentCheck;
|
|
mDocShell->GetSameTypeParent(getter_AddRefs(parentCheck));
|
|
if (!!parentCheck) {
|
|
mDocShell->SetIsFrame();
|
|
}
|
|
}
|
|
|
|
// Apply sandbox flags even if our owner is not an iframe, as this copies
|
|
// flags from our owning content's owning document.
|
|
// Note: ApplySandboxFlags should be called after mDocShell->SetFrameType
|
|
// because we need to get the correct presentation URL in ApplySandboxFlags.
|
|
uint32_t sandboxFlags = 0;
|
|
HTMLIFrameElement* iframe = HTMLIFrameElement::FromNode(mOwnerContent);
|
|
if (iframe) {
|
|
sandboxFlags = iframe->GetSandboxFlags();
|
|
}
|
|
ApplySandboxFlags(sandboxFlags);
|
|
|
|
// Grab the userContextId from owner
|
|
nsresult rv = PopulateUserContextIdFromAttribute(attrs);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
|
|
bool isPrivate = false;
|
|
rv = parentDocShell->GetUsePrivateBrowsing(&isPrivate);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
attrs.SyncAttributesWithPrivateBrowsing(isPrivate);
|
|
|
|
if (OwnerIsMozBrowserFrame()) {
|
|
// For inproc frames, set the docshell properties.
|
|
nsAutoString name;
|
|
if (mOwnerContent->GetAttr(kNameSpaceID_None, nsGkAtoms::name, name)) {
|
|
mDocShell->SetName(name);
|
|
}
|
|
mDocShell->SetFullscreenAllowed(
|
|
mOwnerContent->HasAttr(kNameSpaceID_None, nsGkAtoms::allowfullscreen) ||
|
|
mOwnerContent->HasAttr(kNameSpaceID_None,
|
|
nsGkAtoms::mozallowfullscreen));
|
|
bool isPrivate = mOwnerContent->HasAttr(kNameSpaceID_None,
|
|
nsGkAtoms::mozprivatebrowsing);
|
|
if (isPrivate) {
|
|
if (mDocShell->GetHasLoadedNonBlankURI()) {
|
|
nsContentUtils::ReportToConsoleNonLocalized(
|
|
NS_LITERAL_STRING("We should not switch to Private Browsing after "
|
|
"loading a document."),
|
|
nsIScriptError::warningFlag,
|
|
NS_LITERAL_CSTRING("mozprivatebrowsing"), nullptr);
|
|
} else {
|
|
// This handles the case where a frames private browsing is set by
|
|
// chrome flags and not inherited by its parent.
|
|
attrs.SyncAttributesWithPrivateBrowsing(isPrivate);
|
|
}
|
|
}
|
|
}
|
|
|
|
nsDocShell::Cast(mDocShell)->SetOriginAttributes(attrs);
|
|
|
|
// Typically there will be a window, however for some cases such as printing
|
|
// the document is cloned with a docshell that has no window. We check
|
|
// that the window exists to ensure we don't try to gather ancestors for
|
|
// those cases.
|
|
nsCOMPtr<nsPIDOMWindowOuter> win = doc->GetWindow();
|
|
if (!mDocShell->GetIsMozBrowser() &&
|
|
parentDocShell->ItemType() == mDocShell->ItemType() &&
|
|
!doc->IsStaticDocument() && win) {
|
|
// Propagate through the ancestor principals.
|
|
nsTArray<nsCOMPtr<nsIPrincipal>> ancestorPrincipals;
|
|
// Make a copy, so we can modify it.
|
|
ancestorPrincipals = doc->AncestorPrincipals();
|
|
ancestorPrincipals.InsertElementAt(0, doc->NodePrincipal());
|
|
nsDocShell::Cast(mDocShell)->SetAncestorPrincipals(
|
|
std::move(ancestorPrincipals));
|
|
|
|
// Repeat for outer window IDs.
|
|
nsTArray<uint64_t> ancestorOuterWindowIDs;
|
|
ancestorOuterWindowIDs = doc->AncestorOuterWindowIDs();
|
|
ancestorOuterWindowIDs.InsertElementAt(0, win->WindowID());
|
|
nsDocShell::Cast(mDocShell)->SetAncestorOuterWindowIDs(
|
|
std::move(ancestorOuterWindowIDs));
|
|
}
|
|
|
|
ReallyLoadFrameScripts();
|
|
InitializeBrowserAPI();
|
|
|
|
nsCOMPtr<nsIObserverService> os = services::GetObserverService();
|
|
if (os) {
|
|
os->NotifyObservers(ToSupports(this), "inprocess-browser-shown", nullptr);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsFrameLoader::GetURL(nsString& aURI,
|
|
nsIPrincipal** aTriggeringPrincipal) {
|
|
aURI.Truncate();
|
|
|
|
if (mOwnerContent->IsHTMLElement(nsGkAtoms::object)) {
|
|
mOwnerContent->GetAttr(kNameSpaceID_None, nsGkAtoms::data, aURI);
|
|
nsCOMPtr<nsIPrincipal> prin = mOwnerContent->NodePrincipal();
|
|
prin.forget(aTriggeringPrincipal);
|
|
} else {
|
|
mOwnerContent->GetAttr(kNameSpaceID_None, nsGkAtoms::src, aURI);
|
|
if (RefPtr<nsGenericHTMLFrameElement> frame =
|
|
do_QueryObject(mOwnerContent)) {
|
|
nsCOMPtr<nsIPrincipal> prin = frame->GetSrcTriggeringPrincipal();
|
|
prin.forget(aTriggeringPrincipal);
|
|
} else {
|
|
nsCOMPtr<nsIPrincipal> prin = mOwnerContent->NodePrincipal();
|
|
prin.forget(aTriggeringPrincipal);
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult nsFrameLoader::CheckForRecursiveLoad(nsIURI* aURI) {
|
|
nsresult rv;
|
|
|
|
MOZ_ASSERT(!IsRemoteFrame(),
|
|
"Shouldn't call CheckForRecursiveLoad on remote frames.");
|
|
|
|
mDepthTooGreat = false;
|
|
rv = MaybeCreateDocShell();
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
NS_ASSERTION(mDocShell, "MaybeCreateDocShell succeeded, but null mDocShell");
|
|
if (!mDocShell) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
// Check that we're still in the docshell tree.
|
|
nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
|
|
mDocShell->GetTreeOwner(getter_AddRefs(treeOwner));
|
|
NS_WARNING_ASSERTION(treeOwner,
|
|
"Trying to load a new url to a docshell without owner!");
|
|
NS_ENSURE_STATE(treeOwner);
|
|
|
|
if (mDocShell->ItemType() != nsIDocShellTreeItem::typeContent) {
|
|
// No need to do recursion-protection here XXXbz why not?? Do we really
|
|
// trust people not to screw up with non-content docshells?
|
|
return NS_OK;
|
|
}
|
|
|
|
// Bug 8065: Don't exceed some maximum depth in content frames
|
|
// (MAX_DEPTH_CONTENT_FRAMES)
|
|
nsCOMPtr<nsIDocShellTreeItem> parentAsItem;
|
|
mDocShell->GetSameTypeParent(getter_AddRefs(parentAsItem));
|
|
int32_t depth = 0;
|
|
while (parentAsItem) {
|
|
++depth;
|
|
|
|
if (depth >= MAX_DEPTH_CONTENT_FRAMES) {
|
|
mDepthTooGreat = true;
|
|
NS_WARNING("Too many nested content frames so giving up");
|
|
|
|
return NS_ERROR_UNEXPECTED; // Too deep, give up! (silently?)
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShellTreeItem> temp;
|
|
temp.swap(parentAsItem);
|
|
temp->GetSameTypeParent(getter_AddRefs(parentAsItem));
|
|
}
|
|
|
|
// Bug 136580: Check for recursive frame loading excluding about:srcdoc URIs.
|
|
// srcdoc URIs require their contents to be specified inline, so it isn't
|
|
// possible for undesirable recursion to occur without the aid of a
|
|
// non-srcdoc URI, which this method will block normally.
|
|
// Besides, URI is not enough to guarantee uniqueness of srcdoc documents.
|
|
nsAutoCString buffer;
|
|
rv = aURI->GetScheme(buffer);
|
|
if (NS_SUCCEEDED(rv) && buffer.EqualsLiteral("about")) {
|
|
rv = aURI->GetPathQueryRef(buffer);
|
|
if (NS_SUCCEEDED(rv) && buffer.EqualsLiteral("srcdoc")) {
|
|
// Duplicates allowed up to depth limits
|
|
return NS_OK;
|
|
}
|
|
}
|
|
int32_t matchCount = 0;
|
|
mDocShell->GetSameTypeParent(getter_AddRefs(parentAsItem));
|
|
while (parentAsItem) {
|
|
// Check the parent URI with the URI we're loading
|
|
nsCOMPtr<nsIWebNavigation> parentAsNav(do_QueryInterface(parentAsItem));
|
|
if (parentAsNav) {
|
|
// Does the URI match the one we're about to load?
|
|
nsCOMPtr<nsIURI> parentURI;
|
|
parentAsNav->GetCurrentURI(getter_AddRefs(parentURI));
|
|
if (parentURI) {
|
|
// Bug 98158/193011: We need to ignore data after the #
|
|
bool equal;
|
|
rv = aURI->EqualsExceptRef(parentURI, &equal);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
if (equal) {
|
|
matchCount++;
|
|
if (matchCount >= MAX_SAME_URL_CONTENT_FRAMES) {
|
|
NS_WARNING(
|
|
"Too many nested content frames have the same url (recursion?) "
|
|
"so giving up");
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
nsCOMPtr<nsIDocShellTreeItem> temp;
|
|
temp.swap(parentAsItem);
|
|
temp->GetSameTypeParent(getter_AddRefs(parentAsItem));
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsFrameLoader::GetWindowDimensions(nsIntRect& aRect) {
|
|
// Need to get outer window position here
|
|
Document* doc = mOwnerContent->GetComposedDoc();
|
|
if (!doc) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
MOZ_RELEASE_ASSERT(!doc->IsResourceDoc(), "We shouldn't even exist");
|
|
|
|
nsCOMPtr<nsPIDOMWindowOuter> win = doc->GetWindow();
|
|
if (!win) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShellTreeItem> parentAsItem(win->GetDocShell());
|
|
if (!parentAsItem) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShellTreeOwner> parentOwner;
|
|
if (NS_FAILED(parentAsItem->GetTreeOwner(getter_AddRefs(parentOwner))) ||
|
|
!parentOwner) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
nsCOMPtr<nsIBaseWindow> treeOwnerAsWin(do_GetInterface(parentOwner));
|
|
treeOwnerAsWin->GetPosition(&aRect.x, &aRect.y);
|
|
treeOwnerAsWin->GetSize(&aRect.width, &aRect.height);
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsFrameLoader::UpdatePositionAndSize(nsSubDocumentFrame* aIFrame) {
|
|
if (IsRemoteFrame()) {
|
|
if (mRemoteBrowser) {
|
|
ScreenIntSize size = aIFrame->GetSubdocumentSize();
|
|
// If we were not able to show remote frame before, we should probably
|
|
// retry now to send correct showInfo.
|
|
if (!mRemoteBrowserShown) {
|
|
ShowRemoteFrame(size, aIFrame);
|
|
}
|
|
nsIntRect dimensions;
|
|
NS_ENSURE_SUCCESS(GetWindowDimensions(dimensions), NS_ERROR_FAILURE);
|
|
mLazySize = size;
|
|
mRemoteBrowser->UpdateDimensions(dimensions, size);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
UpdateBaseWindowPositionAndSize(aIFrame);
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsFrameLoader::UpdateBaseWindowPositionAndSize(
|
|
nsSubDocumentFrame* aIFrame) {
|
|
nsCOMPtr<nsIBaseWindow> baseWindow = GetDocShell(IgnoreErrors());
|
|
|
|
// resize the sub document
|
|
if (baseWindow) {
|
|
int32_t x = 0;
|
|
int32_t y = 0;
|
|
|
|
AutoWeakFrame weakFrame(aIFrame);
|
|
|
|
baseWindow->GetPosition(&x, &y);
|
|
|
|
if (!weakFrame.IsAlive()) {
|
|
// GetPosition() killed us
|
|
return;
|
|
}
|
|
|
|
ScreenIntSize size = aIFrame->GetSubdocumentSize();
|
|
mLazySize = size;
|
|
|
|
baseWindow->SetPositionAndSize(x, y, size.width, size.height,
|
|
nsIBaseWindow::eDelayResize);
|
|
}
|
|
}
|
|
|
|
uint32_t nsFrameLoader::LazyWidth() const {
|
|
uint32_t lazyWidth = mLazySize.width;
|
|
|
|
nsIFrame* frame = GetPrimaryFrameOfOwningContent();
|
|
if (frame) {
|
|
lazyWidth = frame->PresContext()->DevPixelsToIntCSSPixels(lazyWidth);
|
|
}
|
|
|
|
return lazyWidth;
|
|
}
|
|
|
|
uint32_t nsFrameLoader::LazyHeight() const {
|
|
uint32_t lazyHeight = mLazySize.height;
|
|
|
|
nsIFrame* frame = GetPrimaryFrameOfOwningContent();
|
|
if (frame) {
|
|
lazyHeight = frame->PresContext()->DevPixelsToIntCSSPixels(lazyHeight);
|
|
}
|
|
|
|
return lazyHeight;
|
|
}
|
|
|
|
void nsFrameLoader::SetClampScrollPosition(bool aClamp) {
|
|
mClampScrollPosition = aClamp;
|
|
|
|
// When turning clamping on, make sure the current position is clamped.
|
|
if (aClamp) {
|
|
nsIFrame* frame = GetPrimaryFrameOfOwningContent();
|
|
nsSubDocumentFrame* subdocFrame = do_QueryFrame(frame);
|
|
if (subdocFrame) {
|
|
nsIFrame* subdocRootFrame = subdocFrame->GetSubdocumentRootFrame();
|
|
if (subdocRootFrame) {
|
|
nsIScrollableFrame* subdocRootScrollFrame =
|
|
subdocRootFrame->PresShell()->GetRootScrollFrameAsScrollable();
|
|
if (subdocRootScrollFrame) {
|
|
subdocRootScrollFrame->ScrollTo(
|
|
subdocRootScrollFrame->GetScrollPosition(),
|
|
nsIScrollableFrame::INSTANT);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static Tuple<ContentParent*, TabParent*> GetContentParent(Element* aBrowser) {
|
|
using ReturnTuple = Tuple<ContentParent*, TabParent*>;
|
|
|
|
nsCOMPtr<nsIBrowser> browser = aBrowser ? aBrowser->AsBrowser() : nullptr;
|
|
if (!browser) {
|
|
return ReturnTuple(nullptr, nullptr);
|
|
}
|
|
|
|
RefPtr<nsFrameLoader> otherLoader;
|
|
browser->GetSameProcessAsFrameLoader(getter_AddRefs(otherLoader));
|
|
if (!otherLoader) {
|
|
return ReturnTuple(nullptr, nullptr);
|
|
}
|
|
|
|
TabParent* tabParent = TabParent::GetFrom(otherLoader);
|
|
if (tabParent && tabParent->Manager() &&
|
|
tabParent->Manager()->IsContentParent()) {
|
|
return MakeTuple(tabParent->Manager()->AsContentParent(), tabParent);
|
|
}
|
|
|
|
return ReturnTuple(nullptr, nullptr);
|
|
}
|
|
|
|
bool nsFrameLoader::TryRemoteBrowser() {
|
|
NS_ASSERTION(!mRemoteBrowser,
|
|
"TryRemoteBrowser called with a remote browser already?");
|
|
|
|
if (!mOwnerContent) {
|
|
return false;
|
|
}
|
|
|
|
// XXXsmaug Per spec (2014/08/21) frameloader should not work in case the
|
|
// element isn't in document, only in shadow dom, but that will change
|
|
// https://www.w3.org/Bugs/Public/show_bug.cgi?id=26365#c0
|
|
Document* doc = mOwnerContent->GetComposedDoc();
|
|
if (!doc) {
|
|
return false;
|
|
}
|
|
|
|
MOZ_RELEASE_ASSERT(!doc->IsResourceDoc(), "We shouldn't even exist");
|
|
|
|
if (!doc->IsActive()) {
|
|
// Don't allow subframe loads in non-active documents.
|
|
// (See bug 610571 comment 5.)
|
|
return false;
|
|
}
|
|
|
|
nsCOMPtr<nsPIDOMWindowOuter> parentWin = doc->GetWindow();
|
|
if (!parentWin) {
|
|
return false;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShell> parentDocShell = parentWin->GetDocShell();
|
|
if (!parentDocShell) {
|
|
return false;
|
|
}
|
|
|
|
TabParent* openingTab = TabParent::GetFrom(parentDocShell->GetOpener());
|
|
RefPtr<ContentParent> openerContentParent;
|
|
RefPtr<TabParent> sameTabGroupAs;
|
|
|
|
if (openingTab && openingTab->Manager() &&
|
|
openingTab->Manager()->IsContentParent()) {
|
|
openerContentParent = openingTab->Manager()->AsContentParent();
|
|
}
|
|
|
|
// <iframe mozbrowser> gets to skip these checks.
|
|
// iframes for JS plugins also get to skip these checks. We control the URL
|
|
// that gets loaded, but the load is triggered from the document containing
|
|
// the plugin.
|
|
if (!OwnerIsMozBrowserFrame() && !IsForJSPlugin()) {
|
|
if (parentDocShell->ItemType() != nsIDocShellTreeItem::typeChrome) {
|
|
// Allow about:addon an exception to this rule so it can load remote
|
|
// extension options pages.
|
|
//
|
|
// Note that the new frame's message manager will not be a child of the
|
|
// chrome window message manager, and, the values of window.top and
|
|
// window.parent will be different than they would be for a non-remote
|
|
// frame.
|
|
nsCOMPtr<nsIWebNavigation> parentWebNav;
|
|
nsCOMPtr<nsIURI> aboutAddons;
|
|
nsCOMPtr<nsIURI> parentURI;
|
|
bool equals;
|
|
if (!((parentWebNav = do_GetInterface(parentDocShell)) &&
|
|
NS_SUCCEEDED(
|
|
NS_NewURI(getter_AddRefs(aboutAddons), "about:addons")) &&
|
|
NS_SUCCEEDED(
|
|
parentWebNav->GetCurrentURI(getter_AddRefs(parentURI))) &&
|
|
NS_SUCCEEDED(parentURI->EqualsExceptRef(aboutAddons, &equals)) &&
|
|
equals)) {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!mOwnerContent->IsXULElement()) {
|
|
return false;
|
|
}
|
|
|
|
if (!mOwnerContent->AttrValueIs(kNameSpaceID_None, nsGkAtoms::type,
|
|
nsGkAtoms::content, eIgnoreCase)) {
|
|
return false;
|
|
}
|
|
|
|
// Try to get the related content parent from our browser element.
|
|
Tie(openerContentParent, sameTabGroupAs) = GetContentParent(mOwnerContent);
|
|
}
|
|
|
|
uint32_t chromeFlags = 0;
|
|
nsCOMPtr<nsIDocShellTreeOwner> parentOwner;
|
|
if (NS_FAILED(parentDocShell->GetTreeOwner(getter_AddRefs(parentOwner))) ||
|
|
!parentOwner) {
|
|
return false;
|
|
}
|
|
nsCOMPtr<nsIXULWindow> window(do_GetInterface(parentOwner));
|
|
if (window && NS_FAILED(window->GetChromeFlags(&chromeFlags))) {
|
|
return false;
|
|
}
|
|
|
|
AUTO_PROFILER_LABEL("nsFrameLoader::TryRemoteBrowser:Create", OTHER);
|
|
|
|
MutableTabContext context;
|
|
nsresult rv = GetNewTabContext(&context);
|
|
NS_ENSURE_SUCCESS(rv, false);
|
|
|
|
uint64_t nextTabParentId = 0;
|
|
if (mOwnerContent) {
|
|
nsAutoString nextTabParentIdAttr;
|
|
mOwnerContent->GetAttr(kNameSpaceID_None, nsGkAtoms::nextTabParentId,
|
|
nextTabParentIdAttr);
|
|
nextTabParentId =
|
|
strtoull(NS_ConvertUTF16toUTF8(nextTabParentIdAttr).get(), nullptr, 10);
|
|
|
|
// We may be in a window that was just opened, so try the
|
|
// nsIBrowserDOMWindow API as a backup.
|
|
if (!nextTabParentId && window) {
|
|
Unused << window->GetNextTabParentId(&nextTabParentId);
|
|
}
|
|
}
|
|
|
|
nsCOMPtr<Element> ownerElement = mOwnerContent;
|
|
mRemoteBrowser =
|
|
ContentParent::CreateBrowser(context, ownerElement, openerContentParent,
|
|
sameTabGroupAs, nextTabParentId);
|
|
if (!mRemoteBrowser) {
|
|
return false;
|
|
}
|
|
|
|
// We no longer need the remoteType attribute on the frame element.
|
|
// The remoteType can be queried by asking the message manager instead.
|
|
ownerElement->UnsetAttr(kNameSpaceID_None, nsGkAtoms::RemoteType, false);
|
|
|
|
// Now that mRemoteBrowser is set, we can initialize the RenderFrame
|
|
mRemoteBrowser->InitRendering();
|
|
|
|
MaybeUpdatePrimaryTabParent(eTabParentChanged);
|
|
|
|
mChildID = mRemoteBrowser->Manager()->ChildID();
|
|
|
|
nsCOMPtr<nsIDocShellTreeItem> rootItem;
|
|
parentDocShell->GetRootTreeItem(getter_AddRefs(rootItem));
|
|
nsCOMPtr<nsPIDOMWindowOuter> rootWin = rootItem->GetWindow();
|
|
nsCOMPtr<nsIDOMChromeWindow> rootChromeWin = do_QueryInterface(rootWin);
|
|
|
|
if (rootChromeWin) {
|
|
nsCOMPtr<nsIBrowserDOMWindow> browserDOMWin;
|
|
rootChromeWin->GetBrowserDOMWindow(getter_AddRefs(browserDOMWin));
|
|
mRemoteBrowser->SetBrowserDOMWindow(browserDOMWin);
|
|
}
|
|
|
|
// Set up a parent SHistory
|
|
if (XRE_IsParentProcess()) {
|
|
// XXX(nika): Once we get out of process iframes we won't want to
|
|
// unconditionally set this up. What do we do for iframes in a chrome loaded
|
|
// document for example?
|
|
mParentSHistory = new ParentSHistory(this);
|
|
}
|
|
|
|
// For xul:browsers, update some settings based on attributes:
|
|
if (mOwnerContent->IsXULElement()) {
|
|
// Send down the name of the browser through mRemoteBrowser if it is set.
|
|
nsAutoString frameName;
|
|
mOwnerContent->GetAttr(kNameSpaceID_None, nsGkAtoms::name, frameName);
|
|
if (nsContentUtils::IsOverridingWindowName(frameName)) {
|
|
Unused << mRemoteBrowser->SendSetWindowName(frameName);
|
|
}
|
|
// Allow scripts to close the window if the browser specified so:
|
|
if (mOwnerContent->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::allowscriptstoclose,
|
|
nsGkAtoms::_true, eCaseMatters)) {
|
|
Unused << mRemoteBrowser->SendAllowScriptsToClose();
|
|
}
|
|
}
|
|
|
|
ReallyLoadFrameScripts();
|
|
InitializeBrowserAPI();
|
|
|
|
return true;
|
|
}
|
|
|
|
mozilla::dom::PBrowserParent* nsFrameLoader::GetRemoteBrowser() const {
|
|
return mRemoteBrowser;
|
|
}
|
|
|
|
RenderFrame* nsFrameLoader::GetCurrentRenderFrame() const {
|
|
if (mRemoteBrowser) {
|
|
return mRemoteBrowser->GetRenderFrame();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
void nsFrameLoader::ActivateRemoteFrame(ErrorResult& aRv) {
|
|
if (!mRemoteBrowser) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return;
|
|
}
|
|
|
|
mRemoteBrowser->Activate();
|
|
}
|
|
|
|
void nsFrameLoader::DeactivateRemoteFrame(ErrorResult& aRv) {
|
|
if (!mRemoteBrowser) {
|
|
aRv.Throw(NS_ERROR_UNEXPECTED);
|
|
return;
|
|
}
|
|
|
|
mRemoteBrowser->Deactivate();
|
|
}
|
|
|
|
void nsFrameLoader::SendCrossProcessMouseEvent(const nsAString& aType, float aX,
|
|
float aY, int32_t aButton,
|
|
int32_t aClickCount,
|
|
int32_t aModifiers,
|
|
bool aIgnoreRootScrollFrame,
|
|
ErrorResult& aRv) {
|
|
if (!mRemoteBrowser) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
|
|
mRemoteBrowser->SendMouseEvent(aType, aX, aY, aButton, aClickCount,
|
|
aModifiers, aIgnoreRootScrollFrame);
|
|
}
|
|
|
|
void nsFrameLoader::ActivateFrameEvent(const nsAString& aType, bool aCapture,
|
|
ErrorResult& aRv) {
|
|
if (!mRemoteBrowser) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
|
|
bool ok = mRemoteBrowser->SendActivateFrameEvent(nsString(aType), aCapture);
|
|
if (!ok) {
|
|
aRv.Throw(NS_ERROR_NOT_AVAILABLE);
|
|
}
|
|
}
|
|
|
|
nsresult nsFrameLoader::CreateStaticClone(nsFrameLoader* aDest) {
|
|
aDest->MaybeCreateDocShell();
|
|
NS_ENSURE_STATE(aDest->mDocShell);
|
|
|
|
nsCOMPtr<Document> kungFuDeathGrip = aDest->mDocShell->GetDocument();
|
|
Unused << kungFuDeathGrip;
|
|
|
|
nsCOMPtr<nsIContentViewer> viewer;
|
|
aDest->mDocShell->GetContentViewer(getter_AddRefs(viewer));
|
|
NS_ENSURE_STATE(viewer);
|
|
|
|
nsIDocShell* origDocShell = GetDocShell(IgnoreErrors());
|
|
NS_ENSURE_STATE(origDocShell);
|
|
|
|
nsCOMPtr<Document> doc = origDocShell->GetDocument();
|
|
NS_ENSURE_STATE(doc);
|
|
|
|
nsCOMPtr<Document> clonedDoc = doc->CreateStaticClone(aDest->mDocShell);
|
|
|
|
viewer->SetDocument(clonedDoc);
|
|
return NS_OK;
|
|
}
|
|
|
|
bool nsFrameLoader::DoLoadMessageManagerScript(const nsAString& aURL,
|
|
bool aRunInGlobalScope) {
|
|
auto* tabParent = TabParent::GetFrom(GetRemoteBrowser());
|
|
if (tabParent) {
|
|
return tabParent->SendLoadRemoteScript(nsString(aURL), aRunInGlobalScope);
|
|
}
|
|
RefPtr<InProcessTabChildMessageManager> tabChild =
|
|
GetTabChildMessageManager();
|
|
if (tabChild) {
|
|
tabChild->LoadFrameScript(aURL, aRunInGlobalScope);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
class nsAsyncMessageToChild : public nsSameProcessAsyncMessageBase,
|
|
public Runnable {
|
|
public:
|
|
nsAsyncMessageToChild(JS::RootingContext* aRootingCx,
|
|
JS::Handle<JSObject*> aCpows,
|
|
nsFrameLoader* aFrameLoader)
|
|
: nsSameProcessAsyncMessageBase(aRootingCx, aCpows),
|
|
mozilla::Runnable("nsAsyncMessageToChild"),
|
|
mFrameLoader(aFrameLoader) {}
|
|
|
|
NS_IMETHOD Run() override {
|
|
InProcessTabChildMessageManager* tabChild =
|
|
mFrameLoader->mChildMessageManager;
|
|
// Since bug 1126089, messages can arrive even when the docShell is
|
|
// destroyed. Here we make sure that those messages are not delivered.
|
|
if (tabChild && tabChild->GetInnerManager() &&
|
|
mFrameLoader->GetExistingDocShell()) {
|
|
JS::Rooted<JSObject*> kungFuDeathGrip(dom::RootingCx(),
|
|
tabChild->GetWrapper());
|
|
ReceiveMessage(static_cast<EventTarget*>(tabChild), mFrameLoader,
|
|
tabChild->GetInnerManager());
|
|
}
|
|
return NS_OK;
|
|
}
|
|
RefPtr<nsFrameLoader> mFrameLoader;
|
|
};
|
|
|
|
nsresult nsFrameLoader::DoSendAsyncMessage(JSContext* aCx,
|
|
const nsAString& aMessage,
|
|
StructuredCloneData& aData,
|
|
JS::Handle<JSObject*> aCpows,
|
|
nsIPrincipal* aPrincipal) {
|
|
TabParent* tabParent = mRemoteBrowser;
|
|
if (tabParent) {
|
|
ClonedMessageData data;
|
|
nsIContentParent* cp = tabParent->Manager();
|
|
if (!BuildClonedMessageDataForParent(cp, aData, data)) {
|
|
MOZ_CRASH();
|
|
return NS_ERROR_DOM_DATA_CLONE_ERR;
|
|
}
|
|
InfallibleTArray<mozilla::jsipc::CpowEntry> cpows;
|
|
jsipc::CPOWManager* mgr = cp->GetCPOWManager();
|
|
if (aCpows && (!mgr || !mgr->Wrap(aCx, aCpows, &cpows))) {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
if (tabParent->SendAsyncMessage(nsString(aMessage), cpows,
|
|
IPC::Principal(aPrincipal), data)) {
|
|
return NS_OK;
|
|
} else {
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
}
|
|
|
|
if (mChildMessageManager) {
|
|
JS::RootingContext* rcx = JS::RootingContext::get(aCx);
|
|
RefPtr<nsAsyncMessageToChild> ev =
|
|
new nsAsyncMessageToChild(rcx, aCpows, this);
|
|
nsresult rv = ev->Init(aMessage, aData, aPrincipal);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
rv = NS_DispatchToCurrentThread(ev);
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
// We don't have any targets to send our asynchronous message to.
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
already_AddRefed<MessageSender> nsFrameLoader::GetMessageManager() {
|
|
EnsureMessageManager();
|
|
return do_AddRef(mMessageManager);
|
|
}
|
|
|
|
nsresult nsFrameLoader::EnsureMessageManager() {
|
|
NS_ENSURE_STATE(mOwnerContent);
|
|
|
|
if (mMessageManager) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (!mIsTopLevelContent && !OwnerIsMozBrowserFrame() && !IsRemoteFrame() &&
|
|
!(mOwnerContent->IsXULElement() &&
|
|
mOwnerContent->AttrValueIs(kNameSpaceID_None,
|
|
nsGkAtoms::forcemessagemanager,
|
|
nsGkAtoms::_true, eCaseMatters))) {
|
|
return NS_OK;
|
|
}
|
|
|
|
RefPtr<nsGlobalWindowOuter> window =
|
|
nsGlobalWindowOuter::Cast(GetOwnerDoc()->GetWindow());
|
|
RefPtr<ChromeMessageBroadcaster> parentManager;
|
|
|
|
if (window && window->IsChromeWindow()) {
|
|
nsAutoString messagemanagergroup;
|
|
if (mOwnerContent->IsXULElement() &&
|
|
mOwnerContent->GetAttr(kNameSpaceID_None,
|
|
nsGkAtoms::messagemanagergroup,
|
|
messagemanagergroup)) {
|
|
parentManager = window->GetGroupMessageManager(messagemanagergroup);
|
|
}
|
|
|
|
if (!parentManager) {
|
|
parentManager = window->GetMessageManager();
|
|
}
|
|
} else {
|
|
parentManager = nsFrameMessageManager::GetGlobalMessageManager();
|
|
}
|
|
|
|
mMessageManager = new ChromeMessageSender(parentManager);
|
|
if (!IsRemoteFrame()) {
|
|
nsresult rv = MaybeCreateDocShell();
|
|
if (NS_FAILED(rv)) {
|
|
return rv;
|
|
}
|
|
NS_ASSERTION(mDocShell,
|
|
"MaybeCreateDocShell succeeded, but null mDocShell");
|
|
if (!mDocShell) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
mChildMessageManager = InProcessTabChildMessageManager::Create(
|
|
mDocShell, mOwnerContent, mMessageManager);
|
|
NS_ENSURE_TRUE(mChildMessageManager, NS_ERROR_UNEXPECTED);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsFrameLoader::ReallyLoadFrameScripts() {
|
|
nsresult rv = EnsureMessageManager();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return rv;
|
|
}
|
|
if (mMessageManager) {
|
|
mMessageManager->InitWithCallback(this);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
already_AddRefed<Element> nsFrameLoader::GetOwnerElement() {
|
|
return do_AddRef(mOwnerContent);
|
|
}
|
|
|
|
void nsFrameLoader::SetRemoteBrowser(nsITabParent* aTabParent) {
|
|
MOZ_ASSERT(!mRemoteBrowser);
|
|
mRemoteFrame = true;
|
|
mRemoteBrowser = TabParent::GetFrom(aTabParent);
|
|
mChildID = mRemoteBrowser ? mRemoteBrowser->Manager()->ChildID() : 0;
|
|
MaybeUpdatePrimaryTabParent(eTabParentChanged);
|
|
ReallyLoadFrameScripts();
|
|
InitializeBrowserAPI();
|
|
mRemoteBrowser->InitRendering();
|
|
ShowRemoteFrame(ScreenIntSize(0, 0));
|
|
}
|
|
|
|
void nsFrameLoader::SetDetachedSubdocFrame(nsIFrame* aDetachedFrame,
|
|
Document* aContainerDoc) {
|
|
mDetachedSubdocFrame = aDetachedFrame;
|
|
mContainerDocWhileDetached = aContainerDoc;
|
|
}
|
|
|
|
nsIFrame* nsFrameLoader::GetDetachedSubdocFrame(
|
|
Document** aContainerDoc) const {
|
|
NS_IF_ADDREF(*aContainerDoc = mContainerDocWhileDetached);
|
|
return mDetachedSubdocFrame.GetFrame();
|
|
}
|
|
|
|
void nsFrameLoader::ApplySandboxFlags(uint32_t sandboxFlags) {
|
|
if (mDocShell) {
|
|
uint32_t parentSandboxFlags = mOwnerContent->OwnerDoc()->GetSandboxFlags();
|
|
|
|
// The child can only add restrictions, never remove them.
|
|
sandboxFlags |= parentSandboxFlags;
|
|
|
|
// If this frame is a receiving browsing context, we should add
|
|
// sandboxed auxiliary navigation flag to sandboxFlags. See
|
|
// https://w3c.github.io/presentation-api/#creating-a-receiving-browsing-context
|
|
nsAutoString presentationURL;
|
|
nsContentUtils::GetPresentationURL(mDocShell, presentationURL);
|
|
if (!presentationURL.IsEmpty()) {
|
|
sandboxFlags |= SANDBOXED_AUXILIARY_NAVIGATION;
|
|
}
|
|
mDocShell->SetSandboxFlags(sandboxFlags);
|
|
}
|
|
}
|
|
|
|
/* virtual */ void nsFrameLoader::AttributeChanged(
|
|
mozilla::dom::Element* aElement, int32_t aNameSpaceID, nsAtom* aAttribute,
|
|
int32_t aModType, const nsAttrValue* aOldValue) {
|
|
MOZ_ASSERT(mObservingOwnerContent);
|
|
|
|
if (aNameSpaceID != kNameSpaceID_None ||
|
|
(aAttribute != TypeAttrName() && aAttribute != nsGkAtoms::primary)) {
|
|
return;
|
|
}
|
|
|
|
if (aElement != mOwnerContent) {
|
|
return;
|
|
}
|
|
|
|
// Note: This logic duplicates a lot of logic in
|
|
// MaybeCreateDocshell. We should fix that.
|
|
|
|
// Notify our enclosing chrome that our type has changed. We only do this
|
|
// if our parent is chrome, since in all other cases we're random content
|
|
// subframes and the treeowner shouldn't worry about us.
|
|
if (!mDocShell) {
|
|
MaybeUpdatePrimaryTabParent(eTabParentChanged);
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShellTreeItem> parentItem;
|
|
mDocShell->GetParent(getter_AddRefs(parentItem));
|
|
if (!parentItem) {
|
|
return;
|
|
}
|
|
|
|
if (parentItem->ItemType() != nsIDocShellTreeItem::typeChrome) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShellTreeOwner> parentTreeOwner;
|
|
parentItem->GetTreeOwner(getter_AddRefs(parentTreeOwner));
|
|
if (!parentTreeOwner) {
|
|
return;
|
|
}
|
|
|
|
bool is_primary = aElement->AttrValueIs(kNameSpaceID_None, nsGkAtoms::primary,
|
|
nsGkAtoms::_true, eIgnoreCase);
|
|
|
|
#ifdef MOZ_XUL
|
|
// when a content panel is no longer primary, hide any open popups it may have
|
|
if (!is_primary) {
|
|
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
|
|
if (pm) pm->HidePopupsInDocShell(mDocShell);
|
|
}
|
|
#endif
|
|
|
|
parentTreeOwner->ContentShellRemoved(mDocShell);
|
|
if (aElement->AttrValueIs(kNameSpaceID_None, TypeAttrName(),
|
|
nsGkAtoms::content, eIgnoreCase)) {
|
|
parentTreeOwner->ContentShellAdded(mDocShell, is_primary);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Send the RequestNotifyAfterRemotePaint message to the current Tab.
|
|
*/
|
|
void nsFrameLoader::RequestNotifyAfterRemotePaint() {
|
|
// If remote browsing (e10s), handle this with the TabParent.
|
|
if (mRemoteBrowser) {
|
|
Unused << mRemoteBrowser->SendRequestNotifyAfterRemotePaint();
|
|
}
|
|
}
|
|
|
|
void nsFrameLoader::RequestUpdatePosition(ErrorResult& aRv) {
|
|
if (auto* tabParent = TabParent::GetFrom(GetRemoteBrowser())) {
|
|
nsresult rv = tabParent->UpdatePosition();
|
|
|
|
if (NS_FAILED(rv)) {
|
|
aRv.Throw(rv);
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsFrameLoader::Print(uint64_t aOuterWindowID,
|
|
nsIPrintSettings* aPrintSettings,
|
|
nsIWebProgressListener* aProgressListener,
|
|
ErrorResult& aRv) {
|
|
#if defined(NS_PRINTING)
|
|
if (mRemoteBrowser) {
|
|
RefPtr<embedding::PrintingParent> printingParent =
|
|
mRemoteBrowser->Manager()->AsContentParent()->GetPrintingParent();
|
|
|
|
embedding::PrintData printData;
|
|
nsresult rv = printingParent->SerializeAndEnsureRemotePrintJob(
|
|
aPrintSettings, aProgressListener, nullptr, &printData);
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
aRv.Throw(rv);
|
|
return;
|
|
}
|
|
|
|
bool success = mRemoteBrowser->SendPrint(aOuterWindowID, printData);
|
|
if (!success) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
}
|
|
return;
|
|
}
|
|
|
|
nsGlobalWindowOuter* outerWindow =
|
|
nsGlobalWindowOuter::GetOuterWindowWithId(aOuterWindowID);
|
|
if (NS_WARN_IF(!outerWindow)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIWebBrowserPrint> webBrowserPrint =
|
|
do_GetInterface(outerWindow->AsOuter());
|
|
if (NS_WARN_IF(!webBrowserPrint)) {
|
|
aRv.Throw(NS_ERROR_FAILURE);
|
|
return;
|
|
}
|
|
|
|
nsresult rv = webBrowserPrint->Print(aPrintSettings, aProgressListener);
|
|
if (NS_FAILED(rv)) {
|
|
aRv.Throw(rv);
|
|
return;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
already_AddRefed<mozilla::dom::Promise> nsFrameLoader::DrawSnapshot(
|
|
double aX, double aY, double aW, double aH, double aScale,
|
|
const nsAString& aBackgroundColor, mozilla::ErrorResult& aRv) {
|
|
RefPtr<nsIGlobalObject> global = GetOwnerContent()->GetOwnerGlobal();
|
|
RefPtr<Promise> promise = Promise::Create(global, aRv);
|
|
if (NS_WARN_IF(aRv.Failed())) {
|
|
return nullptr;
|
|
}
|
|
|
|
RefPtr<Document> document = GetOwnerContent()->GetOwnerDocument();
|
|
if (NS_WARN_IF(!document)) {
|
|
aRv = NS_ERROR_FAILURE;
|
|
return nullptr;
|
|
}
|
|
nsIPresShell* presShell = document->GetShell();
|
|
if (NS_WARN_IF(!presShell)) {
|
|
aRv = NS_ERROR_FAILURE;
|
|
return nullptr;
|
|
}
|
|
|
|
nscolor color;
|
|
css::Loader* loader = document->CSSLoader();
|
|
ServoStyleSet* set = presShell->StyleSet();
|
|
if (NS_WARN_IF(!ServoCSSParser::ComputeColor(
|
|
set, NS_RGB(0, 0, 0), aBackgroundColor, &color, nullptr, loader))) {
|
|
aRv = NS_ERROR_FAILURE;
|
|
return nullptr;
|
|
}
|
|
|
|
gfx::IntRect rect = gfx::IntRect::RoundOut(gfx::Rect(aX, aY, aW, aH));
|
|
|
|
if (IsRemoteFrame()) {
|
|
gfx::CrossProcessPaint::StartRemote(mRemoteBrowser->GetTabId(), rect,
|
|
aScale, color, promise);
|
|
} else {
|
|
gfx::CrossProcessPaint::StartLocal(mDocShell, rect, aScale, color, promise);
|
|
}
|
|
|
|
return promise.forget();
|
|
}
|
|
|
|
already_AddRefed<nsITabParent> nsFrameLoader::GetTabParent() {
|
|
return do_AddRef(mRemoteBrowser);
|
|
}
|
|
|
|
already_AddRefed<nsILoadContext> nsFrameLoader::LoadContext() {
|
|
nsCOMPtr<nsILoadContext> loadContext;
|
|
if (IsRemoteFrame() && (mRemoteBrowser || TryRemoteBrowser())) {
|
|
loadContext = mRemoteBrowser->GetLoadContext();
|
|
} else {
|
|
loadContext = do_GetInterface(ToSupports(GetDocShell(IgnoreErrors())));
|
|
}
|
|
return loadContext.forget();
|
|
}
|
|
|
|
already_AddRefed<BrowsingContext> nsFrameLoader::GetBrowsingContext() {
|
|
RefPtr<BrowsingContext> browsingContext;
|
|
if (IsRemoteFrame() && (mRemoteBrowser || TryRemoteBrowser())) {
|
|
browsingContext = mRemoteBrowser->GetBrowsingContext();
|
|
} else if (GetDocShell(IgnoreErrors())) {
|
|
browsingContext = nsDocShell::Cast(mDocShell)->GetBrowsingContext();
|
|
}
|
|
return browsingContext.forget();
|
|
}
|
|
|
|
void nsFrameLoader::InitializeBrowserAPI() {
|
|
if (!OwnerIsMozBrowserFrame()) {
|
|
return;
|
|
}
|
|
if (!IsRemoteFrame()) {
|
|
nsresult rv = EnsureMessageManager();
|
|
if (NS_WARN_IF(NS_FAILED(rv))) {
|
|
return;
|
|
}
|
|
if (mMessageManager) {
|
|
mMessageManager->LoadFrameScript(
|
|
NS_LITERAL_STRING("chrome://global/content/BrowserElementChild.js"),
|
|
/* allowDelayedLoad = */ true,
|
|
/* aRunInGlobalScope */ true, IgnoreErrors());
|
|
}
|
|
}
|
|
nsCOMPtr<nsIMozBrowserFrame> browserFrame = do_QueryInterface(mOwnerContent);
|
|
if (browserFrame) {
|
|
browserFrame->InitializeBrowserAPI();
|
|
}
|
|
}
|
|
|
|
void nsFrameLoader::DestroyBrowserFrameScripts() {
|
|
if (!OwnerIsMozBrowserFrame()) {
|
|
return;
|
|
}
|
|
nsCOMPtr<nsIMozBrowserFrame> browserFrame = do_QueryInterface(mOwnerContent);
|
|
if (browserFrame) {
|
|
browserFrame->DestroyBrowserFrameScripts();
|
|
}
|
|
}
|
|
|
|
void nsFrameLoader::StartPersistence(
|
|
uint64_t aOuterWindowID, nsIWebBrowserPersistDocumentReceiver* aRecv,
|
|
ErrorResult& aRv) {
|
|
MOZ_ASSERT(aRecv);
|
|
|
|
if (mRemoteBrowser) {
|
|
mRemoteBrowser->StartPersistence(aOuterWindowID, aRecv, aRv);
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<Document> rootDoc = mDocShell ? mDocShell->GetDocument() : nullptr;
|
|
nsCOMPtr<Document> foundDoc;
|
|
if (aOuterWindowID) {
|
|
foundDoc = nsContentUtils::GetSubdocumentWithOuterWindowId(rootDoc,
|
|
aOuterWindowID);
|
|
} else {
|
|
foundDoc = rootDoc;
|
|
}
|
|
|
|
if (!foundDoc) {
|
|
aRecv->OnError(NS_ERROR_NO_CONTENT);
|
|
} else {
|
|
nsCOMPtr<nsIWebBrowserPersistDocument> pdoc =
|
|
new mozilla::WebBrowserPersistLocalDocument(foundDoc);
|
|
aRecv->OnDocumentReady(pdoc);
|
|
}
|
|
}
|
|
|
|
void nsFrameLoader::MaybeUpdatePrimaryTabParent(TabParentChange aChange) {
|
|
if (mRemoteBrowser && mOwnerContent) {
|
|
nsCOMPtr<nsIDocShell> docShell = mOwnerContent->OwnerDoc()->GetDocShell();
|
|
if (!docShell) {
|
|
return;
|
|
}
|
|
|
|
int32_t parentType = docShell->ItemType();
|
|
if (parentType != nsIDocShellTreeItem::typeChrome) {
|
|
return;
|
|
}
|
|
|
|
nsCOMPtr<nsIDocShellTreeOwner> parentTreeOwner;
|
|
docShell->GetTreeOwner(getter_AddRefs(parentTreeOwner));
|
|
if (!parentTreeOwner) {
|
|
return;
|
|
}
|
|
|
|
if (!mObservingOwnerContent) {
|
|
mOwnerContent->AddMutationObserver(this);
|
|
mObservingOwnerContent = true;
|
|
}
|
|
|
|
parentTreeOwner->TabParentRemoved(mRemoteBrowser);
|
|
if (aChange == eTabParentChanged) {
|
|
bool isPrimary = mOwnerContent->AttrValueIs(
|
|
kNameSpaceID_None, nsGkAtoms::primary, nsGkAtoms::_true, eIgnoreCase);
|
|
parentTreeOwner->TabParentAdded(mRemoteBrowser, isPrimary);
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult nsFrameLoader::GetNewTabContext(MutableTabContext* aTabContext,
|
|
nsIURI* aURI) {
|
|
if (IsForJSPlugin()) {
|
|
return aTabContext->SetTabContextForJSPluginFrame(mJSPluginID)
|
|
? NS_OK
|
|
: NS_ERROR_FAILURE;
|
|
}
|
|
|
|
OriginAttributes attrs;
|
|
attrs.mInIsolatedMozBrowser = OwnerIsIsolatedMozBrowserFrame();
|
|
nsresult rv;
|
|
|
|
attrs.mAppId = nsIScriptSecurityManager::NO_APP_ID;
|
|
|
|
// set the userContextId on the attrs before we pass them into
|
|
// the tab context
|
|
rv = PopulateUserContextIdFromAttribute(attrs);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
|
|
nsAutoString presentationURLStr;
|
|
mOwnerContent->GetAttr(kNameSpaceID_None, nsGkAtoms::mozpresentation,
|
|
presentationURLStr);
|
|
|
|
nsCOMPtr<nsIDocShell> docShell = mOwnerContent->OwnerDoc()->GetDocShell();
|
|
nsCOMPtr<nsILoadContext> parentContext = do_QueryInterface(docShell);
|
|
NS_ENSURE_STATE(parentContext);
|
|
|
|
bool isPrivate = parentContext->UsePrivateBrowsing();
|
|
attrs.SyncAttributesWithPrivateBrowsing(isPrivate);
|
|
|
|
UIStateChangeType showAccelerators = UIStateChangeType_NoChange;
|
|
UIStateChangeType showFocusRings = UIStateChangeType_NoChange;
|
|
uint64_t chromeOuterWindowID = 0;
|
|
|
|
Document* doc = mOwnerContent->OwnerDoc();
|
|
if (doc) {
|
|
nsCOMPtr<nsPIWindowRoot> root = nsContentUtils::GetWindowRoot(doc);
|
|
if (root) {
|
|
showAccelerators = root->ShowAccelerators() ? UIStateChangeType_Set
|
|
: UIStateChangeType_Clear;
|
|
showFocusRings = root->ShowFocusRings() ? UIStateChangeType_Set
|
|
: UIStateChangeType_Clear;
|
|
|
|
nsPIDOMWindowOuter* outerWin = root->GetWindow();
|
|
if (outerWin) {
|
|
chromeOuterWindowID = outerWin->WindowID();
|
|
}
|
|
}
|
|
}
|
|
|
|
bool tabContextUpdated = aTabContext->SetTabContext(
|
|
OwnerIsMozBrowserFrame(), chromeOuterWindowID, showAccelerators,
|
|
showFocusRings, attrs, presentationURLStr);
|
|
NS_ENSURE_STATE(tabContextUpdated);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult nsFrameLoader::PopulateUserContextIdFromAttribute(
|
|
OriginAttributes& aAttr) {
|
|
if (aAttr.mUserContextId ==
|
|
nsIScriptSecurityManager::DEFAULT_USER_CONTEXT_ID) {
|
|
// Grab the userContextId from owner if XUL or mozbrowser frame
|
|
nsAutoString userContextIdStr;
|
|
int32_t namespaceID = mOwnerContent->GetNameSpaceID();
|
|
if ((namespaceID == kNameSpaceID_XUL || OwnerIsMozBrowserFrame()) &&
|
|
mOwnerContent->GetAttr(kNameSpaceID_None, nsGkAtoms::usercontextid,
|
|
userContextIdStr) &&
|
|
!userContextIdStr.IsEmpty()) {
|
|
nsresult rv;
|
|
aAttr.mUserContextId = userContextIdStr.ToInteger(&rv);
|
|
NS_ENSURE_SUCCESS(rv, rv);
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
ProcessMessageManager* nsFrameLoader::GetProcessMessageManager() const {
|
|
return mRemoteBrowser ? mRemoteBrowser->Manager()->GetMessageManager()
|
|
: nullptr;
|
|
};
|
|
|
|
JSObject* nsFrameLoader::WrapObject(JSContext* cx,
|
|
JS::Handle<JSObject*> aGivenProto) {
|
|
JS::RootedObject result(cx);
|
|
FrameLoader_Binding::Wrap(cx, this, this, aGivenProto, &result);
|
|
return result;
|
|
}
|