c2506ce4c3
This is rather tricky / unfortunate, but this is the low-risk fix for now. The issue is as follows: When we construct a subdocument frame, we try to show its viewer by using a script runner which will call ShowViewer(). If ShowViewer() gets called before the subdoc frame gets laid out (has the NS_FRAME_FIRST_REFLOW bit set), we pick an (arbitrary) 10x10 device pixel size, and initialize the page with that viewport. Then, eventually, the frame gets laid out to the correct size and fires a resize event. If we have container queries around, we need to lay out the page while styling, which causes the layout to happen before the script blocker checkpoint, and thus the viewport to get initialized with the right size to begin with. This generally shouldn't be bad, but google chat at least seems to rely on this resize event (and the divergence being caused by container queries is rather unfortunate). For now, do the low risk fix of always using the "initial" subdoc frame size to show the viewer. We should ideally sort this out better. Even our "good" behavior is quite bizarre (e.g, I'd expect going from display: block to none to trigger a resize event and the viewport to go back to 0... As you noted, chrome's inner layout sizes do change when the frame is display: none). But it seems worth to land this at least in the interim. Differential Revision: https://phabricator.services.mozilla.com/D233399
1398 lines
49 KiB
C++
1398 lines
49 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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* rendering object for replaced elements that contain a document, such
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* as <frame>, <iframe>, and some <object>s
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*/
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#include "nsSubDocumentFrame.h"
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#include "mozilla/ComputedStyleInlines.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/PresShell.h"
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#include "mozilla/ScrollContainerFrame.h"
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#include "mozilla/StaticPrefs_layout.h"
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#include "mozilla/Unused.h"
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#include "mozilla/dom/Document.h"
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#include "mozilla/dom/HTMLFrameElement.h"
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#include "mozilla/dom/ImageDocument.h"
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#include "mozilla/dom/BrowserParent.h"
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#include "mozilla/dom/RemoteBrowser.h"
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#include "nsCOMPtr.h"
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#include "nsGenericHTMLElement.h"
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#include "nsGenericHTMLFrameElement.h"
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#include "nsAttrValueInlines.h"
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#include "nsIDocShell.h"
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#include "nsIDocumentViewer.h"
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#include "nsIContentInlines.h"
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#include "nsPresContext.h"
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#include "nsView.h"
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#include "nsViewManager.h"
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#include "nsGkAtoms.h"
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#include "nsStyleConsts.h"
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#include "nsStyleStruct.h"
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#include "nsStyleStructInlines.h"
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#include "nsFrameSetFrame.h"
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#include "nsNameSpaceManager.h"
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#include "nsDisplayList.h"
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#include "nsIObjectLoadingContent.h"
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#include "nsLayoutUtils.h"
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#include "nsContentUtils.h"
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#include "nsServiceManagerUtils.h"
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#include "nsQueryObject.h"
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#include "RetainedDisplayListBuilder.h"
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#include "nsObjectLoadingContent.h"
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#include "mozilla/layers/WebRenderUserData.h"
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#include "mozilla/layers/WebRenderScrollData.h"
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#include "mozilla/layers/RenderRootStateManager.h"
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#include "mozilla/layers/StackingContextHelper.h" // for StackingContextHelper
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#include "mozilla/ProfilerLabels.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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using namespace mozilla::gfx;
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using namespace mozilla::layers;
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static Document* GetDocumentFromView(nsView* aView) {
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MOZ_ASSERT(aView, "null view");
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nsViewManager* vm = aView->GetViewManager();
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PresShell* presShell = vm ? vm->GetPresShell() : nullptr;
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return presShell ? presShell->GetDocument() : nullptr;
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}
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static void PropagateIsUnderHiddenEmbedderElement(nsFrameLoader* aFrameLoader,
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bool aValue) {
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if (!aFrameLoader) {
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return;
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}
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if (BrowsingContext* bc = aFrameLoader->GetExtantBrowsingContext()) {
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if (bc->IsUnderHiddenEmbedderElement() != aValue) {
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Unused << bc->SetIsUnderHiddenEmbedderElement(aValue);
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}
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}
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}
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nsSubDocumentFrame::nsSubDocumentFrame(ComputedStyle* aStyle,
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nsPresContext* aPresContext)
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: nsAtomicContainerFrame(aStyle, aPresContext, kClassID),
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mOuterView(nullptr),
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mInnerView(nullptr),
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mIsInline(false),
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mPostedReflowCallback(false),
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mDidCreateDoc(false),
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mCallingShow(false),
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mIsInObjectOrEmbed(false) {}
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#ifdef ACCESSIBILITY
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a11y::AccType nsSubDocumentFrame::AccessibleType() {
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return a11y::eOuterDocType;
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}
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#endif
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NS_QUERYFRAME_HEAD(nsSubDocumentFrame)
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NS_QUERYFRAME_ENTRY(nsSubDocumentFrame)
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NS_QUERYFRAME_TAIL_INHERITING(nsAtomicContainerFrame)
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class AsyncFrameInit : public Runnable {
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public:
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explicit AsyncFrameInit(nsIFrame* aFrame)
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: mozilla::Runnable("AsyncFrameInit"), mFrame(aFrame) {}
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NS_IMETHOD Run() override {
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AUTO_PROFILER_LABEL("AsyncFrameInit::Run", OTHER);
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if (mFrame.IsAlive()) {
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static_cast<nsSubDocumentFrame*>(mFrame.GetFrame())->ShowViewer();
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}
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return NS_OK;
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}
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private:
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WeakFrame mFrame;
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};
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void nsSubDocumentFrame::Init(nsIContent* aContent, nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow) {
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MOZ_ASSERT(aContent);
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// determine if we are a <frame> or <iframe>
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mIsInline = !aContent->IsHTMLElement(nsGkAtoms::frame);
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nsAtomicContainerFrame::Init(aContent, aParent, aPrevInFlow);
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// CreateView() creates this frame's view, stored in mOuterView. It needs to
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// be created first since it's the parent of the inner view, stored in
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// mInnerView.
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CreateView();
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EnsureInnerView();
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// Set the primary frame now so that nsDocumentViewer::FindContainerView
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// called from within EndSwapDocShellsForViews below can find it if needed.
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aContent->SetPrimaryFrame(this);
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// If we have a detached subdoc's root view on our frame loader, re-insert it
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// into the view tree. This happens when we've been reframed, and ensures the
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// presentation persists across reframes.
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if (RefPtr<nsFrameLoader> frameloader = FrameLoader()) {
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bool hadFrame = false;
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nsIFrame* detachedFrame = frameloader->GetDetachedSubdocFrame(&hadFrame);
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frameloader->SetDetachedSubdocFrame(nullptr);
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nsView* detachedView = detachedFrame ? detachedFrame->GetView() : nullptr;
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if (detachedView) {
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// Restore stashed presentation.
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InsertViewsInReverseOrder(detachedView, mInnerView);
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EndSwapDocShellsForViews(mInnerView->GetFirstChild());
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} else if (hadFrame) {
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// Presentation is for a different document, don't restore it.
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frameloader->Hide();
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}
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}
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// NOTE: The frame loader might not yet be initialized yet. If it's not, the
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// call in ShowViewer() should pick things up.
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UpdateEmbeddedBrowsingContextDependentData();
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nsContentUtils::AddScriptRunner(new AsyncFrameInit(this));
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}
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void nsSubDocumentFrame::UpdateEmbeddedBrowsingContextDependentData() {
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if (!mFrameLoader) {
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return;
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}
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BrowsingContext* bc = mFrameLoader->GetExtantBrowsingContext();
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if (!bc) {
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return;
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}
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mIsInObjectOrEmbed = bc->IsEmbedderTypeObjectOrEmbed();
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MaybeUpdateRemoteStyle();
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MaybeUpdateEmbedderColorScheme();
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PropagateIsUnderHiddenEmbedderElement(
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PresShell()->IsUnderHiddenEmbedderElement() ||
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!StyleVisibility()->IsVisible());
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}
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void nsSubDocumentFrame::PropagateIsUnderHiddenEmbedderElement(bool aValue) {
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::PropagateIsUnderHiddenEmbedderElement(mFrameLoader, aValue);
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}
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void nsSubDocumentFrame::ShowViewer() {
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if (mCallingShow) {
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return;
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}
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RefPtr<nsFrameLoader> frameloader = FrameLoader();
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if (!frameloader || frameloader->IsDead()) {
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return;
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}
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if (!frameloader->IsRemoteFrame() && !PresContext()->IsDynamic()) {
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// We let the printing code take care of loading the document and
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// initializing the shell; just create the inner view for it to use.
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(void)EnsureInnerView();
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} else {
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AutoWeakFrame weakThis(this);
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mCallingShow = true;
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bool didCreateDoc = frameloader->Show(this);
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if (!weakThis.IsAlive()) {
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return;
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}
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mCallingShow = false;
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mDidCreateDoc = didCreateDoc;
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if (!HasAnyStateBits(NS_FRAME_FIRST_REFLOW)) {
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frameloader->UpdatePositionAndSize(this);
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}
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if (!weakThis.IsAlive()) {
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return;
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}
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UpdateEmbeddedBrowsingContextDependentData();
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InvalidateFrame();
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}
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}
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void nsSubDocumentFrame::CreateView() {
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MOZ_ASSERT(!HasView());
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nsView* parentView = GetParent()->GetClosestView();
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MOZ_ASSERT(parentView, "no parent with view");
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nsViewManager* viewManager = parentView->GetViewManager();
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MOZ_ASSERT(viewManager, "null view manager");
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nsView* view = viewManager->CreateView(GetRect(), parentView);
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SyncFrameViewProperties(view);
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nsView* insertBefore = nsLayoutUtils::FindSiblingViewFor(parentView, this);
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// we insert this view 'above' the insertBefore view, unless insertBefore is
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// null, in which case we want to call with aAbove == false to insert at the
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// beginning in document order
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viewManager->InsertChild(parentView, view, insertBefore,
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insertBefore != nullptr);
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// REVIEW: Don't create a widget for fixed-pos elements anymore.
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// ComputeRepaintRegionForCopy will calculate the right area to repaint
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// when we scroll.
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// Reparent views on any child frames (or their descendants) to this
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// view. We can just call ReparentFrameViewTo on this frame because
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// we know this frame has no view, so it will crawl the children. Also,
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// we know that any descendants with views must have 'parentView' as their
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// parent view.
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ReparentFrameViewTo(viewManager, view);
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// Remember our view
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SetView(view);
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NS_FRAME_LOG(NS_FRAME_TRACE_CALLS,
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("nsIFrame::CreateView: frame=%p view=%p", this, view));
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}
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nsIFrame* nsSubDocumentFrame::GetSubdocumentRootFrame() {
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if (!mInnerView) {
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return nullptr;
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}
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nsView* subdocView = mInnerView->GetFirstChild();
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return subdocView ? subdocView->GetFrame() : nullptr;
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}
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mozilla::PresShell* nsSubDocumentFrame::GetSubdocumentPresShellForPainting(
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uint32_t aFlags) {
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if (!mInnerView) {
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return nullptr;
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}
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nsView* subdocView = mInnerView->GetFirstChild();
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if (!subdocView) {
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return nullptr;
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}
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mozilla::PresShell* presShell = nullptr;
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nsIFrame* subdocRootFrame = subdocView->GetFrame();
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if (subdocRootFrame) {
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presShell = subdocRootFrame->PresShell();
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}
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// If painting is suppressed in the presshell, we try to look for a better
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// presshell to use.
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if (!presShell || (presShell->IsPaintingSuppressed() &&
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!(aFlags & IGNORE_PAINT_SUPPRESSION))) {
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// During page transition mInnerView will sometimes have two children, the
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// first being the new page that may not have any frame, and the second
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// being the old page that will probably have a frame.
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nsView* nextView = subdocView->GetNextSibling();
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nsIFrame* frame = nullptr;
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if (nextView) {
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frame = nextView->GetFrame();
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}
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if (frame) {
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mozilla::PresShell* presShellForNextView = frame->PresShell();
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if (!presShell || (presShellForNextView &&
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!presShellForNextView->IsPaintingSuppressed() &&
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StaticPrefs::layout_show_previous_page())) {
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subdocView = nextView;
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subdocRootFrame = frame;
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presShell = presShellForNextView;
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}
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}
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if (!presShell) {
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// If we don't have a frame we use this roundabout way to get the pres
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// shell.
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if (!mFrameLoader) {
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return nullptr;
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}
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nsIDocShell* docShell = mFrameLoader->GetDocShell(IgnoreErrors());
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if (!docShell) {
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return nullptr;
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}
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presShell = docShell->GetPresShell();
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}
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}
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return presShell;
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}
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nsRect nsSubDocumentFrame::GetDestRect() const {
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const nsRect rect = GetContent()->IsHTMLElement(nsGkAtoms::frame)
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? GetRectRelativeToSelf()
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: GetContentRectRelativeToSelf();
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return GetDestRect(rect);
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}
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nsRect nsSubDocumentFrame::GetDestRect(const nsRect& aConstraintRect) const {
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// Adjust subdocument size, according to 'object-fit' and the subdocument's
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// intrinsic size and ratio.
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return nsLayoutUtils::ComputeObjectDestRect(
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aConstraintRect, ComputeIntrinsicSize(/* aIgnoreContainment = */ true),
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GetIntrinsicRatio(), StylePosition());
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}
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LayoutDeviceIntSize nsSubDocumentFrame::GetInitialSubdocumentSize() const {
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if (RefPtr<nsFrameLoader> frameloader = FrameLoader()) {
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nsIFrame* detachedFrame = frameloader->GetDetachedSubdocFrame();
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if (nsView* view = detachedFrame ? detachedFrame->GetView() : nullptr) {
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nsSize size = view->GetBounds().Size();
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nsPresContext* presContext = detachedFrame->PresContext();
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return LayoutDeviceIntSize(presContext->AppUnitsToDevPixels(size.width),
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presContext->AppUnitsToDevPixels(size.height));
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}
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}
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// Pick some default size for now. Using 10x10 because that's what the
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// code used to do.
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return LayoutDeviceIntSize(10, 10);
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}
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LayoutDeviceIntSize nsSubDocumentFrame::GetSubdocumentSize() const {
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if (HasAnyStateBits(NS_FRAME_FIRST_REFLOW)) {
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return GetInitialSubdocumentSize();
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}
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nsSize docSizeAppUnits = GetDestRect().Size();
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nsPresContext* pc = PresContext();
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return LayoutDeviceIntSize(pc->AppUnitsToDevPixels(docSizeAppUnits.width),
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pc->AppUnitsToDevPixels(docSizeAppUnits.height));
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}
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static void WrapBackgroundColorInOwnLayer(nsDisplayListBuilder* aBuilder,
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nsIFrame* aFrame,
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nsDisplayList* aList) {
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for (nsDisplayItem* item : aList->TakeItems()) {
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if (item->GetType() == DisplayItemType::TYPE_BACKGROUND_COLOR) {
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nsDisplayList tmpList(aBuilder);
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tmpList.AppendToTop(item);
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item = MakeDisplayItemWithIndex<nsDisplayOwnLayer>(
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aBuilder, aFrame, /* aIndex = */ nsDisplayOwnLayer::OwnLayerForSubdoc,
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&tmpList, aBuilder->CurrentActiveScrolledRoot(),
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nsDisplayOwnLayerFlags::None, ScrollbarData{}, true, false);
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}
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aList->AppendToTop(item);
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}
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}
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void nsSubDocumentFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsDisplayListSet& aLists) {
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if (!IsVisibleForPainting()) {
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return;
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}
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const bool forEvents = aBuilder->IsForEventDelivery();
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if (forEvents && Style()->PointerEvents() == StylePointerEvents::None) {
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// If we are pointer-events:none then we don't need to HitTest background or
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// anything else.
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return;
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}
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nsFrameLoader* frameLoader = FrameLoader();
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const bool isRemoteFrame = frameLoader && frameLoader->IsRemoteFrame();
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nsDisplayListCollection decorations(aBuilder);
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DisplayBorderBackgroundOutline(aBuilder, decorations);
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if (isRemoteFrame) {
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// Wrap background colors of <iframe>s with remote subdocuments in their
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// own layer so we generate a ColorLayer. This is helpful for optimizing
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// compositing; we can skip compositing the ColorLayer when the
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// remote content is opaque.
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WrapBackgroundColorInOwnLayer(aBuilder, this,
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decorations.BorderBackground());
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}
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decorations.MoveTo(aLists);
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if (forEvents && !ContentReactsToPointerEvents()) {
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return;
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}
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if (HidesContent()) {
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return;
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}
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// If we're passing pointer events to children then we have to descend into
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// subdocuments no matter what, to determine which parts are transparent for
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|
// hit-testing or event regions.
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if (!mInnerView || !aBuilder->GetDescendIntoSubdocuments()) {
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return;
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}
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if (isRemoteFrame) {
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|
// We're the subdoc for <browser remote="true"> and it has
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// painted content. Display its shadow layer tree.
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DisplayListClipState::AutoSaveRestore clipState(aBuilder);
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clipState.ClipContainingBlockDescendantsToContentBox(aBuilder, this);
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aLists.Content()->AppendNewToTop<nsDisplayRemote>(aBuilder, this);
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return;
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}
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RefPtr<mozilla::PresShell> presShell = GetSubdocumentPresShellForPainting(
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aBuilder->IsIgnoringPaintSuppression() ? IGNORE_PAINT_SUPPRESSION : 0);
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|
if (!presShell) {
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return;
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}
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|
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if (aBuilder->IsInFilter()) {
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Document* outerDoc = PresShell()->GetDocument();
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Document* innerDoc = presShell->GetDocument();
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if (outerDoc && innerDoc) {
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if (!outerDoc->NodePrincipal()->Equals(innerDoc->NodePrincipal())) {
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outerDoc->SetUseCounter(eUseCounter_custom_FilteredCrossOriginIFrame);
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}
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}
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}
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nsIFrame* subdocRootFrame = presShell->GetRootFrame();
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nsPresContext* presContext = presShell->GetPresContext();
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int32_t parentAPD = PresContext()->AppUnitsPerDevPixel();
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int32_t subdocAPD = presContext->AppUnitsPerDevPixel();
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nsRect visible;
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nsRect dirty;
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bool ignoreViewportScrolling = false;
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if (subdocRootFrame) {
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|
// get the dirty rect relative to the root frame of the subdoc
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|
visible = aBuilder->GetVisibleRect() + GetOffsetToCrossDoc(subdocRootFrame);
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dirty = aBuilder->GetDirtyRect() + GetOffsetToCrossDoc(subdocRootFrame);
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// and convert into the appunits of the subdoc
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visible = visible.ScaleToOtherAppUnitsRoundOut(parentAPD, subdocAPD);
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dirty = dirty.ScaleToOtherAppUnitsRoundOut(parentAPD, subdocAPD);
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if (ScrollContainerFrame* sf = presShell->GetRootScrollContainerFrame()) {
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// Use a copy, so the rects don't get modified.
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nsRect copyOfDirty = dirty;
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nsRect copyOfVisible = visible;
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// TODO(botond): Can we just axe this DecideScrollableLayer call?
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sf->DecideScrollableLayer(aBuilder, ©OfVisible, ©OfDirty,
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/* aSetBase = */ true);
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ignoreViewportScrolling = presShell->IgnoringViewportScrolling();
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}
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aBuilder->EnterPresShell(subdocRootFrame, !ContentReactsToPointerEvents());
|
|
aBuilder->IncrementPresShellPaintCount(presShell);
|
|
} else {
|
|
visible = aBuilder->GetVisibleRect();
|
|
dirty = aBuilder->GetDirtyRect();
|
|
}
|
|
|
|
DisplayListClipState::AutoSaveRestore clipState(aBuilder);
|
|
clipState.ClipContainingBlockDescendantsToContentBox(aBuilder, this);
|
|
|
|
ScrollContainerFrame* sf = presShell->GetRootScrollContainerFrame();
|
|
bool constructZoomItem = subdocRootFrame && parentAPD != subdocAPD;
|
|
bool needsOwnLayer = constructZoomItem ||
|
|
presContext->IsRootContentDocumentCrossProcess() ||
|
|
(sf && sf->IsScrollingActive());
|
|
|
|
nsDisplayList childItems(aBuilder);
|
|
|
|
{
|
|
DisplayListClipState::AutoSaveRestore nestedClipState(aBuilder);
|
|
if (needsOwnLayer) {
|
|
// Clear current clip. There's no point in propagating it down, since
|
|
// the layer we will construct will be clipped by the current clip.
|
|
// In fact for nsDisplayZoom propagating it down would be incorrect since
|
|
// nsDisplayZoom changes the meaning of appunits.
|
|
nestedClipState.Clear();
|
|
}
|
|
|
|
// Invoke AutoBuildingDisplayList to ensure that the correct dirty rect
|
|
// is used to compute the visible rect if AddCanvasBackgroundColorItem
|
|
// creates a display item.
|
|
nsIFrame* frame = subdocRootFrame ? subdocRootFrame : this;
|
|
nsDisplayListBuilder::AutoBuildingDisplayList building(aBuilder, frame,
|
|
visible, dirty);
|
|
|
|
if (subdocRootFrame) {
|
|
if (aBuilder->BuildCompositorHitTestInfo()) {
|
|
bool hasDocumentLevelListenersForApzAwareEvents =
|
|
gfxPlatform::AsyncPanZoomEnabled() &&
|
|
nsLayoutUtils::HasDocumentLevelListenersForApzAwareEvents(
|
|
presShell);
|
|
|
|
aBuilder->SetAncestorHasApzAwareEventHandler(
|
|
hasDocumentLevelListenersForApzAwareEvents);
|
|
}
|
|
|
|
subdocRootFrame->BuildDisplayListForStackingContext(aBuilder,
|
|
&childItems);
|
|
if (!aBuilder->IsForEventDelivery()) {
|
|
// If we are going to use a displayzoom below then any items we put
|
|
// under it need to have underlying frames from the subdocument. So we
|
|
// need to calculate the bounds based on which frame will be the
|
|
// underlying frame for the canvas background color item.
|
|
nsRect bounds =
|
|
GetContentRectRelativeToSelf() + aBuilder->ToReferenceFrame(this);
|
|
bounds = bounds.ScaleToOtherAppUnitsRoundOut(parentAPD, subdocAPD);
|
|
|
|
// Add the canvas background color to the bottom of the list. This
|
|
// happens after we've built the list so that
|
|
// AddCanvasBackgroundColorItem can monkey with the contents if
|
|
// necessary.
|
|
presShell->AddCanvasBackgroundColorItem(aBuilder, &childItems, frame,
|
|
bounds, NS_RGBA(0, 0, 0, 0));
|
|
}
|
|
}
|
|
}
|
|
|
|
if (subdocRootFrame) {
|
|
aBuilder->LeavePresShell(subdocRootFrame, &childItems);
|
|
}
|
|
|
|
// Generate a resolution and/or zoom item if needed. If one or both of those
|
|
// is created, we don't need to create a separate nsDisplaySubDocument.
|
|
|
|
nsDisplayOwnLayerFlags flags =
|
|
nsDisplayOwnLayerFlags::GenerateSubdocInvalidations;
|
|
// If ignoreViewportScrolling is true then the top most layer we create here
|
|
// is going to become the scrollable layer for the root scroll frame, so we
|
|
// want to add nsDisplayOwnLayer::GENERATE_SCROLLABLE_LAYER to whatever layer
|
|
// becomes the topmost. We do this below.
|
|
if (constructZoomItem) {
|
|
nsDisplayOwnLayerFlags zoomFlags = flags;
|
|
if (ignoreViewportScrolling) {
|
|
zoomFlags |= nsDisplayOwnLayerFlags::GenerateScrollableLayer;
|
|
}
|
|
childItems.AppendNewToTop<nsDisplayZoom>(aBuilder, subdocRootFrame, this,
|
|
&childItems, subdocAPD, parentAPD,
|
|
zoomFlags);
|
|
|
|
needsOwnLayer = false;
|
|
}
|
|
// Wrap the zoom item in the resolution item if we have both because we want
|
|
// the resolution scale applied on top of the app units per dev pixel
|
|
// conversion.
|
|
if (ignoreViewportScrolling) {
|
|
flags |= nsDisplayOwnLayerFlags::GenerateScrollableLayer;
|
|
}
|
|
|
|
// We always want top level content documents to be in their own layer.
|
|
nsDisplaySubDocument* layerItem = MakeDisplayItem<nsDisplaySubDocument>(
|
|
aBuilder, subdocRootFrame ? subdocRootFrame : this, this, &childItems,
|
|
flags);
|
|
if (layerItem) {
|
|
childItems.AppendToTop(layerItem);
|
|
layerItem->SetShouldFlattenAway(!needsOwnLayer);
|
|
}
|
|
|
|
if (aBuilder->IsForFrameVisibility()) {
|
|
// We don't add the childItems to the return list as we're dealing with them
|
|
// here.
|
|
presShell->RebuildApproximateFrameVisibilityDisplayList(childItems);
|
|
childItems.DeleteAll(aBuilder);
|
|
} else {
|
|
aLists.Content()->AppendToTop(&childItems);
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG_FRAME_DUMP
|
|
void nsSubDocumentFrame::List(FILE* out, const char* aPrefix,
|
|
ListFlags aFlags) const {
|
|
nsCString str;
|
|
ListGeneric(str, aPrefix, aFlags);
|
|
fprintf_stderr(out, "%s\n", str.get());
|
|
|
|
if (aFlags.contains(ListFlag::TraverseSubdocumentFrames)) {
|
|
nsSubDocumentFrame* f = const_cast<nsSubDocumentFrame*>(this);
|
|
nsIFrame* subdocRootFrame = f->GetSubdocumentRootFrame();
|
|
if (subdocRootFrame) {
|
|
nsCString pfx(aPrefix);
|
|
pfx += " ";
|
|
subdocRootFrame->List(out, pfx.get(), aFlags);
|
|
}
|
|
}
|
|
}
|
|
|
|
nsresult nsSubDocumentFrame::GetFrameName(nsAString& aResult) const {
|
|
return MakeFrameName(u"FrameOuter"_ns, aResult);
|
|
}
|
|
#endif
|
|
|
|
nscoord nsSubDocumentFrame::IntrinsicISize(const IntrinsicSizeInput& aInput,
|
|
IntrinsicISizeType aType) {
|
|
// Note: when computing max-content inline size (i.e. when aType is
|
|
// IntrinsicISizeType::PrefISize), if the subdocument is an SVG document, then
|
|
// in theory we want to return the same value that SVGOuterSVGFrame does. That
|
|
// method has some special handling of percentage values to avoid unhelpful
|
|
// zero sizing in the presence of orthogonal writing modes. We don't bother
|
|
// with that for SVG documents in <embed> and <object>, since that special
|
|
// handling doesn't look up across document boundaries anyway.
|
|
return GetIntrinsicSize().ISize(GetWritingMode()).valueOr(0);
|
|
}
|
|
|
|
/* virtual */
|
|
IntrinsicSize nsSubDocumentFrame::GetIntrinsicSize() {
|
|
return ComputeIntrinsicSize();
|
|
}
|
|
|
|
IntrinsicSize nsSubDocumentFrame::ComputeIntrinsicSize(
|
|
bool aIgnoreContainment) const {
|
|
const auto containAxes =
|
|
aIgnoreContainment ? ContainSizeAxes(false, false) : GetContainSizeAxes();
|
|
if (containAxes.IsBoth()) {
|
|
// Intrinsic size of 'contain:size' replaced elements is determined by
|
|
// contain-intrinsic-size.
|
|
return FinishIntrinsicSize(containAxes, IntrinsicSize(0, 0));
|
|
}
|
|
|
|
if (nsCOMPtr<nsIObjectLoadingContent> iolc = do_QueryInterface(mContent)) {
|
|
const auto* olc = static_cast<nsObjectLoadingContent*>(iolc.get());
|
|
if (auto size = olc->GetSubdocumentIntrinsicSize()) {
|
|
// Use the intrinsic size from the child SVG document, if available.
|
|
return FinishIntrinsicSize(containAxes, *size);
|
|
}
|
|
}
|
|
|
|
if (!IsInline()) {
|
|
return {}; // <frame> elements have no useful intrinsic size.
|
|
}
|
|
|
|
if (mContent->IsXULElement()) {
|
|
return {}; // XUL <iframe> and <browser> have no useful intrinsic size
|
|
}
|
|
|
|
// We must be an HTML <iframe>. Return fallback size.
|
|
return FinishIntrinsicSize(containAxes,
|
|
IntrinsicSize(kFallbackIntrinsicSize));
|
|
}
|
|
|
|
/* virtual */
|
|
AspectRatio nsSubDocumentFrame::GetIntrinsicRatio() const {
|
|
// FIXME(emilio): This should probably respect contain: size and return no
|
|
// ratio in the case subDocRoot is non-null. Otherwise we do it by virtue of
|
|
// using a zero-size below and reusing GetIntrinsicSize().
|
|
if (nsCOMPtr<nsIObjectLoadingContent> iolc = do_QueryInterface(mContent)) {
|
|
auto olc = static_cast<nsObjectLoadingContent*>(iolc.get());
|
|
|
|
auto ratio = olc->GetSubdocumentIntrinsicRatio();
|
|
if (ratio && *ratio) {
|
|
// Use the intrinsic aspect ratio from the child SVG document, if
|
|
// available.
|
|
return *ratio;
|
|
}
|
|
}
|
|
|
|
// NOTE(emilio): Even though we have an intrinsic size, we may not have an
|
|
// intrinsic ratio. For example `<iframe style="width: 100px">` should not
|
|
// shrink in the vertical axis to preserve the 300x150 ratio.
|
|
return nsAtomicContainerFrame::GetIntrinsicRatio();
|
|
}
|
|
|
|
/* virtual */
|
|
nsIFrame::SizeComputationResult nsSubDocumentFrame::ComputeSize(
|
|
gfxContext* aRenderingContext, WritingMode aWM, const LogicalSize& aCBSize,
|
|
nscoord aAvailableISize, const LogicalSize& aMargin,
|
|
const LogicalSize& aBorderPadding, const StyleSizeOverrides& aSizeOverrides,
|
|
ComputeSizeFlags aFlags) {
|
|
return {ComputeSizeWithIntrinsicDimensions(
|
|
aRenderingContext, aWM, GetIntrinsicSize(), GetAspectRatio(),
|
|
aCBSize, aMargin, aBorderPadding, aSizeOverrides, aFlags),
|
|
AspectRatioUsage::None};
|
|
}
|
|
|
|
void nsSubDocumentFrame::Reflow(nsPresContext* aPresContext,
|
|
ReflowOutput& aDesiredSize,
|
|
const ReflowInput& aReflowInput,
|
|
nsReflowStatus& aStatus) {
|
|
MarkInReflow();
|
|
DO_GLOBAL_REFLOW_COUNT("nsSubDocumentFrame");
|
|
MOZ_ASSERT(aStatus.IsEmpty(), "Caller should pass a fresh reflow status!");
|
|
NS_FRAME_TRACE(
|
|
NS_FRAME_TRACE_CALLS,
|
|
("enter nsSubDocumentFrame::Reflow: maxSize=%d,%d",
|
|
aReflowInput.AvailableWidth(), aReflowInput.AvailableHeight()));
|
|
|
|
NS_ASSERTION(aReflowInput.ComputedISize() != NS_UNCONSTRAINEDSIZE,
|
|
"Shouldn't have unconstrained inline-size here "
|
|
"thanks to the rules of reflow");
|
|
NS_ASSERTION(aReflowInput.ComputedBSize() != NS_UNCONSTRAINEDSIZE,
|
|
"Shouldn't have unconstrained block-size here "
|
|
"thanks to ComputeAutoSize");
|
|
|
|
NS_ASSERTION(mContent->GetPrimaryFrame() == this, "Shouldn't happen");
|
|
|
|
// XUL <iframe> or <browser>, or HTML <iframe>, <object> or <embed>
|
|
const auto wm = aReflowInput.GetWritingMode();
|
|
aDesiredSize.SetSize(wm, aReflowInput.ComputedSizeWithBorderPadding(wm));
|
|
|
|
// "offset" is the offset of our content area from our frame's
|
|
// top-left corner.
|
|
nsPoint offset = nsPoint(aReflowInput.ComputedPhysicalBorderPadding().left,
|
|
aReflowInput.ComputedPhysicalBorderPadding().top);
|
|
|
|
if (mInnerView) {
|
|
const nsMargin& bp = aReflowInput.ComputedPhysicalBorderPadding();
|
|
nsSize innerSize(aDesiredSize.Width() - bp.LeftRight(),
|
|
aDesiredSize.Height() - bp.TopBottom());
|
|
|
|
// Size & position the view according to 'object-fit' & 'object-position'.
|
|
nsRect destRect = GetDestRect(nsRect(offset, innerSize));
|
|
nsViewManager* vm = mInnerView->GetViewManager();
|
|
vm->MoveViewTo(mInnerView, destRect.x, destRect.y);
|
|
vm->ResizeView(mInnerView, nsRect(nsPoint(0, 0), destRect.Size()));
|
|
}
|
|
|
|
aDesiredSize.SetOverflowAreasToDesiredBounds();
|
|
|
|
FinishAndStoreOverflow(&aDesiredSize);
|
|
|
|
if (!aPresContext->IsRootPaginatedDocument() && !mPostedReflowCallback) {
|
|
PresShell()->PostReflowCallback(this);
|
|
mPostedReflowCallback = true;
|
|
}
|
|
|
|
NS_FRAME_TRACE(
|
|
NS_FRAME_TRACE_CALLS,
|
|
("exit nsSubDocumentFrame::Reflow: size=%d,%d status=%s",
|
|
aDesiredSize.Width(), aDesiredSize.Height(), ToString(aStatus).c_str()));
|
|
}
|
|
|
|
bool nsSubDocumentFrame::ReflowFinished() {
|
|
mPostedReflowCallback = false;
|
|
nsFrameLoader* fl = FrameLoader();
|
|
if (!fl) {
|
|
return false;
|
|
}
|
|
if (fl->IsRemoteFrame() && fl->HasRemoteBrowserBeenSized()) {
|
|
// For remote frames we don't need to update the size and position instantly
|
|
// (but we should try to do so if we haven't shown it yet).
|
|
return false;
|
|
}
|
|
RefPtr { fl } -> UpdatePositionAndSize(this);
|
|
return false;
|
|
}
|
|
|
|
void nsSubDocumentFrame::ReflowCallbackCanceled() {
|
|
mPostedReflowCallback = false;
|
|
}
|
|
|
|
nsresult nsSubDocumentFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsAtom* aAttribute,
|
|
int32_t aModType) {
|
|
if (aNameSpaceID != kNameSpaceID_None) {
|
|
return NS_OK;
|
|
}
|
|
|
|
// If the noResize attribute changes, dis/allow frame to be resized
|
|
if (aAttribute == nsGkAtoms::noresize) {
|
|
// Note that we're not doing content type checks, but that's ok -- if
|
|
// they'd fail we will just end up with a null framesetFrame.
|
|
if (mContent->GetParent()->IsHTMLElement(nsGkAtoms::frameset)) {
|
|
nsIFrame* parentFrame = GetParent();
|
|
|
|
if (parentFrame) {
|
|
// There is no interface for nsHTMLFramesetFrame so QI'ing to
|
|
// concrete class, yay!
|
|
nsHTMLFramesetFrame* framesetFrame = do_QueryFrame(parentFrame);
|
|
if (framesetFrame) {
|
|
framesetFrame->RecalculateBorderResize();
|
|
}
|
|
}
|
|
}
|
|
} else if (aAttribute == nsGkAtoms::marginwidth ||
|
|
aAttribute == nsGkAtoms::marginheight) {
|
|
// Notify the frameloader
|
|
if (RefPtr<nsFrameLoader> frameloader = FrameLoader()) {
|
|
frameloader->MarginsChanged();
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
void nsSubDocumentFrame::MaybeUpdateEmbedderColorScheme() {
|
|
nsFrameLoader* fl = mFrameLoader.get();
|
|
if (!fl) {
|
|
return;
|
|
}
|
|
|
|
BrowsingContext* bc = fl->GetExtantBrowsingContext();
|
|
if (!bc) {
|
|
return;
|
|
}
|
|
|
|
auto ToOverride = [](ColorScheme aScheme) -> PrefersColorSchemeOverride {
|
|
return aScheme == ColorScheme::Dark ? PrefersColorSchemeOverride::Dark
|
|
: PrefersColorSchemeOverride::Light;
|
|
};
|
|
|
|
EmbedderColorSchemes schemes{
|
|
ToOverride(LookAndFeel::ColorSchemeForFrame(this, ColorSchemeMode::Used)),
|
|
ToOverride(
|
|
LookAndFeel::ColorSchemeForFrame(this, ColorSchemeMode::Preferred))};
|
|
if (bc->GetEmbedderColorSchemes() == schemes) {
|
|
return;
|
|
}
|
|
|
|
Unused << bc->SetEmbedderColorSchemes(schemes);
|
|
}
|
|
|
|
void nsSubDocumentFrame::MaybeUpdateRemoteStyle(
|
|
ComputedStyle* aOldComputedStyle) {
|
|
if (!mIsInObjectOrEmbed) {
|
|
return;
|
|
}
|
|
|
|
if (aOldComputedStyle &&
|
|
aOldComputedStyle->StyleVisibility()->mImageRendering ==
|
|
Style()->StyleVisibility()->mImageRendering) {
|
|
return;
|
|
}
|
|
|
|
if (!mFrameLoader) {
|
|
return;
|
|
}
|
|
|
|
if (mFrameLoader->IsRemoteFrame()) {
|
|
mFrameLoader->UpdateRemoteStyle(
|
|
Style()->StyleVisibility()->mImageRendering);
|
|
return;
|
|
}
|
|
|
|
BrowsingContext* context = mFrameLoader->GetExtantBrowsingContext();
|
|
if (!context) {
|
|
return;
|
|
}
|
|
|
|
Document* document = context->GetDocument();
|
|
if (!document) {
|
|
return;
|
|
}
|
|
|
|
if (document->IsImageDocument()) {
|
|
document->AsImageDocument()->UpdateRemoteStyle(
|
|
Style()->StyleVisibility()->mImageRendering);
|
|
}
|
|
}
|
|
|
|
void nsSubDocumentFrame::DidSetComputedStyle(ComputedStyle* aOldComputedStyle) {
|
|
nsAtomicContainerFrame::DidSetComputedStyle(aOldComputedStyle);
|
|
|
|
MaybeUpdateEmbedderColorScheme();
|
|
|
|
MaybeUpdateRemoteStyle(aOldComputedStyle);
|
|
|
|
// If this presshell has invisible ancestors, we don't need to propagate the
|
|
// visibility style change to the subdocument since the subdocument should
|
|
// have already set the IsUnderHiddenEmbedderElement flag in
|
|
// nsSubDocumentFrame::Init.
|
|
if (PresShell()->IsUnderHiddenEmbedderElement()) {
|
|
return;
|
|
}
|
|
|
|
const bool isVisible = StyleVisibility()->IsVisible();
|
|
if (!aOldComputedStyle ||
|
|
isVisible != aOldComputedStyle->StyleVisibility()->IsVisible()) {
|
|
PropagateIsUnderHiddenEmbedderElement(!isVisible);
|
|
}
|
|
}
|
|
|
|
nsIFrame* NS_NewSubDocumentFrame(PresShell* aPresShell, ComputedStyle* aStyle) {
|
|
return new (aPresShell)
|
|
nsSubDocumentFrame(aStyle, aPresShell->GetPresContext());
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsSubDocumentFrame)
|
|
|
|
class nsHideViewer final : public Runnable {
|
|
public:
|
|
nsHideViewer(nsIContent* aFrameElement, nsFrameLoader* aFrameLoader,
|
|
PresShell* aPresShell, bool aHideViewerIfFrameless)
|
|
: mozilla::Runnable("nsHideViewer"),
|
|
mFrameElement(aFrameElement),
|
|
mFrameLoader(aFrameLoader),
|
|
mPresShell(aPresShell),
|
|
mHideViewerIfFrameless(aHideViewerIfFrameless) {
|
|
NS_ASSERTION(mFrameElement, "Must have a frame element");
|
|
NS_ASSERTION(mFrameLoader, "Must have a frame loader");
|
|
NS_ASSERTION(mPresShell, "Must have a presshell");
|
|
}
|
|
|
|
MOZ_CAN_RUN_SCRIPT_BOUNDARY NS_IMETHOD Run() override {
|
|
// Flush frames, to ensure any pending display:none changes are made.
|
|
// Note it can be unsafe to flush if we've destroyed the presentation
|
|
// for some other reason, like if we're shutting down.
|
|
//
|
|
// But avoid the flush if we know for sure we're away, like when we're out
|
|
// of the document already.
|
|
//
|
|
// FIXME(emilio): This could still be a perf footgun when removing lots of
|
|
// siblings where each of them cause the reframe of an ancestor which happen
|
|
// to contain a subdocument.
|
|
//
|
|
// We should find some way to avoid that!
|
|
if (!mPresShell->IsDestroying() && mFrameElement->IsInComposedDoc()) {
|
|
mPresShell->FlushPendingNotifications(FlushType::Frames);
|
|
}
|
|
|
|
// Either the frame has been constructed by now, or it never will be,
|
|
// either way we want to clear the stashed views.
|
|
mFrameLoader->SetDetachedSubdocFrame(nullptr);
|
|
|
|
nsSubDocumentFrame* frame = do_QueryFrame(mFrameElement->GetPrimaryFrame());
|
|
if (!frame || frame->FrameLoader() != mFrameLoader) {
|
|
PropagateIsUnderHiddenEmbedderElement(mFrameLoader, true);
|
|
if (mHideViewerIfFrameless) {
|
|
// The frame element has no nsIFrame for the same frame loader.
|
|
// Hide the nsFrameLoader, which destroys the presentation.
|
|
mFrameLoader->Hide();
|
|
}
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
private:
|
|
const nsCOMPtr<nsIContent> mFrameElement;
|
|
const RefPtr<nsFrameLoader> mFrameLoader;
|
|
const RefPtr<PresShell> mPresShell;
|
|
const bool mHideViewerIfFrameless;
|
|
};
|
|
|
|
static nsView* BeginSwapDocShellsForViews(nsView* aSibling);
|
|
|
|
void nsSubDocumentFrame::Destroy(DestroyContext& aContext) {
|
|
if (mPostedReflowCallback) {
|
|
PresShell()->CancelReflowCallback(this);
|
|
mPostedReflowCallback = false;
|
|
}
|
|
|
|
// Detach the subdocument's views and stash them in the frame loader.
|
|
// We can then reattach them if we're being reframed (for example if
|
|
// the frame has been made position:fixed).
|
|
if (RefPtr<nsFrameLoader> frameloader = FrameLoader()) {
|
|
ClearDisplayItems();
|
|
|
|
nsView* detachedViews =
|
|
::BeginSwapDocShellsForViews(mInnerView->GetFirstChild());
|
|
|
|
frameloader->SetDetachedSubdocFrame(
|
|
detachedViews ? detachedViews->GetFrame() : nullptr);
|
|
|
|
// We call nsFrameLoader::HideViewer() in a script runner so that we can
|
|
// safely determine whether the frame is being reframed or destroyed.
|
|
nsContentUtils::AddScriptRunner(new nsHideViewer(
|
|
mContent, frameloader, PresShell(), (mDidCreateDoc || mCallingShow)));
|
|
}
|
|
|
|
nsAtomicContainerFrame::Destroy(aContext);
|
|
}
|
|
|
|
nsFrameLoader* nsSubDocumentFrame::FrameLoader() const {
|
|
if (mFrameLoader) {
|
|
return mFrameLoader;
|
|
}
|
|
|
|
if (RefPtr<nsFrameLoaderOwner> loaderOwner = do_QueryObject(GetContent())) {
|
|
mFrameLoader = loaderOwner->GetFrameLoader();
|
|
}
|
|
|
|
return mFrameLoader;
|
|
}
|
|
|
|
auto nsSubDocumentFrame::GetRemotePaintData() const -> RemoteFramePaintData {
|
|
if (mRetainedRemoteFrame) {
|
|
return *mRetainedRemoteFrame;
|
|
}
|
|
|
|
RemoteFramePaintData data;
|
|
nsFrameLoader* fl = FrameLoader();
|
|
if (!fl) {
|
|
return data;
|
|
}
|
|
|
|
auto* rb = fl->GetRemoteBrowser();
|
|
if (!rb) {
|
|
return data;
|
|
}
|
|
data.mLayersId = rb->GetLayersId();
|
|
data.mTabId = rb->GetTabId();
|
|
return data;
|
|
}
|
|
|
|
void nsSubDocumentFrame::ResetFrameLoader(RetainPaintData aRetain) {
|
|
if (aRetain == RetainPaintData::Yes && mFrameLoader) {
|
|
mRetainedRemoteFrame = Some(GetRemotePaintData());
|
|
} else {
|
|
mRetainedRemoteFrame.reset();
|
|
}
|
|
mFrameLoader = nullptr;
|
|
ClearDisplayItems();
|
|
nsContentUtils::AddScriptRunner(new AsyncFrameInit(this));
|
|
}
|
|
|
|
void nsSubDocumentFrame::ClearRetainedPaintData() {
|
|
mRetainedRemoteFrame.reset();
|
|
ClearDisplayItems();
|
|
InvalidateFrameSubtree();
|
|
}
|
|
|
|
// XXX this should be called ObtainDocShell or something like that,
|
|
// to indicate that it could have side effects
|
|
nsIDocShell* nsSubDocumentFrame::GetDocShell() const {
|
|
// How can FrameLoader() return null???
|
|
if (NS_WARN_IF(!FrameLoader())) {
|
|
return nullptr;
|
|
}
|
|
return mFrameLoader->GetDocShell(IgnoreErrors());
|
|
}
|
|
|
|
static void DestroyDisplayItemDataForFrames(nsIFrame* aFrame) {
|
|
// Destroying a WebRenderUserDataTable can cause destruction of other objects
|
|
// which can remove frame properties in their destructor. If we delete a frame
|
|
// property it runs the destructor of the stored object in the middle of
|
|
// updating the frame property table, so if the destruction of that object
|
|
// causes another update to the frame property table it would leave the frame
|
|
// property table in an inconsistent state. So we remove it from the table and
|
|
// then destroy it. (bug 1530657)
|
|
WebRenderUserDataTable* userDataTable =
|
|
aFrame->TakeProperty(WebRenderUserDataProperty::Key());
|
|
if (userDataTable) {
|
|
for (const auto& data : userDataTable->Values()) {
|
|
data->RemoveFromTable();
|
|
}
|
|
delete userDataTable;
|
|
}
|
|
|
|
for (const auto& childList : aFrame->ChildLists()) {
|
|
for (nsIFrame* child : childList.mList) {
|
|
DestroyDisplayItemDataForFrames(child);
|
|
}
|
|
}
|
|
}
|
|
|
|
static CallState BeginSwapDocShellsForDocument(Document& aDocument) {
|
|
if (PresShell* presShell = aDocument.GetPresShell()) {
|
|
// Disable painting while the views are detached, see bug 946929.
|
|
presShell->SetNeverPainting(true);
|
|
|
|
if (nsIFrame* rootFrame = presShell->GetRootFrame()) {
|
|
::DestroyDisplayItemDataForFrames(rootFrame);
|
|
}
|
|
}
|
|
aDocument.EnumerateSubDocuments(BeginSwapDocShellsForDocument);
|
|
return CallState::Continue;
|
|
}
|
|
|
|
static nsView* BeginSwapDocShellsForViews(nsView* aSibling) {
|
|
// Collect the removed sibling views in reverse order in 'removedViews'.
|
|
nsView* removedViews = nullptr;
|
|
while (aSibling) {
|
|
if (Document* doc = ::GetDocumentFromView(aSibling)) {
|
|
::BeginSwapDocShellsForDocument(*doc);
|
|
}
|
|
nsView* next = aSibling->GetNextSibling();
|
|
aSibling->GetViewManager()->RemoveChild(aSibling);
|
|
aSibling->SetNextSibling(removedViews);
|
|
removedViews = aSibling;
|
|
aSibling = next;
|
|
}
|
|
return removedViews;
|
|
}
|
|
|
|
/* static */
|
|
void nsSubDocumentFrame::InsertViewsInReverseOrder(nsView* aSibling,
|
|
nsView* aParent) {
|
|
MOZ_ASSERT(aParent, "null view");
|
|
MOZ_ASSERT(!aParent->GetFirstChild(), "inserting into non-empty list");
|
|
|
|
nsViewManager* vm = aParent->GetViewManager();
|
|
while (aSibling) {
|
|
nsView* next = aSibling->GetNextSibling();
|
|
aSibling->SetNextSibling(nullptr);
|
|
// true means 'after' in document order which is 'before' in view order,
|
|
// so this call prepends the child, thus reversing the siblings as we go.
|
|
vm->InsertChild(aParent, aSibling, nullptr, true);
|
|
aSibling = next;
|
|
}
|
|
}
|
|
|
|
nsresult nsSubDocumentFrame::BeginSwapDocShells(nsIFrame* aOther) {
|
|
if (!aOther || !aOther->IsSubDocumentFrame()) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
nsSubDocumentFrame* other = static_cast<nsSubDocumentFrame*>(aOther);
|
|
if (!mFrameLoader || !mDidCreateDoc || mCallingShow || !other->mFrameLoader ||
|
|
!other->mDidCreateDoc) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
ClearDisplayItems();
|
|
other->ClearDisplayItems();
|
|
|
|
if (mInnerView && other->mInnerView) {
|
|
nsView* ourSubdocViews = mInnerView->GetFirstChild();
|
|
nsView* ourRemovedViews = ::BeginSwapDocShellsForViews(ourSubdocViews);
|
|
nsView* otherSubdocViews = other->mInnerView->GetFirstChild();
|
|
nsView* otherRemovedViews = ::BeginSwapDocShellsForViews(otherSubdocViews);
|
|
|
|
InsertViewsInReverseOrder(ourRemovedViews, other->mInnerView);
|
|
InsertViewsInReverseOrder(otherRemovedViews, mInnerView);
|
|
}
|
|
mFrameLoader.swap(other->mFrameLoader);
|
|
return NS_OK;
|
|
}
|
|
|
|
static CallState EndSwapDocShellsForDocument(Document& aDocument) {
|
|
// Our docshell and view trees have been updated for the new hierarchy.
|
|
// Now also update all nsDeviceContext::mWidget to that of the
|
|
// container view in the new hierarchy.
|
|
if (nsCOMPtr<nsIDocShell> ds = aDocument.GetDocShell()) {
|
|
nsCOMPtr<nsIDocumentViewer> viewer;
|
|
ds->GetDocViewer(getter_AddRefs(viewer));
|
|
while (viewer) {
|
|
RefPtr<nsPresContext> pc = viewer->GetPresContext();
|
|
if (pc && pc->GetPresShell()) {
|
|
pc->GetPresShell()->SetNeverPainting(ds->IsInvisible());
|
|
}
|
|
nsDeviceContext* dc = pc ? pc->DeviceContext() : nullptr;
|
|
if (dc) {
|
|
nsView* v = viewer->FindContainerView();
|
|
dc->Init(v ? v->GetNearestWidget(nullptr) : nullptr);
|
|
}
|
|
viewer = viewer->GetPreviousViewer();
|
|
}
|
|
}
|
|
|
|
aDocument.EnumerateSubDocuments(EndSwapDocShellsForDocument);
|
|
return CallState::Continue;
|
|
}
|
|
|
|
/* static */
|
|
void nsSubDocumentFrame::EndSwapDocShellsForViews(nsView* aSibling) {
|
|
for (; aSibling; aSibling = aSibling->GetNextSibling()) {
|
|
if (Document* doc = ::GetDocumentFromView(aSibling)) {
|
|
::EndSwapDocShellsForDocument(*doc);
|
|
}
|
|
nsIFrame* frame = aSibling->GetFrame();
|
|
if (frame) {
|
|
nsIFrame* parent = nsLayoutUtils::GetCrossDocParentFrameInProcess(frame);
|
|
if (parent->HasAnyStateBits(NS_FRAME_IN_POPUP)) {
|
|
nsIFrame::AddInPopupStateBitToDescendants(frame);
|
|
} else {
|
|
nsIFrame::RemoveInPopupStateBitFromDescendants(frame);
|
|
}
|
|
if (frame->HasInvalidFrameInSubtree()) {
|
|
while (parent &&
|
|
!parent->HasAnyStateBits(NS_FRAME_DESCENDANT_NEEDS_PAINT |
|
|
NS_FRAME_IS_NONDISPLAY)) {
|
|
parent->AddStateBits(NS_FRAME_DESCENDANT_NEEDS_PAINT);
|
|
parent = nsLayoutUtils::GetCrossDocParentFrameInProcess(parent);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void nsSubDocumentFrame::EndSwapDocShells(nsIFrame* aOther) {
|
|
nsSubDocumentFrame* other = static_cast<nsSubDocumentFrame*>(aOther);
|
|
AutoWeakFrame weakThis(this);
|
|
AutoWeakFrame weakOther(aOther);
|
|
|
|
if (mInnerView) {
|
|
EndSwapDocShellsForViews(mInnerView->GetFirstChild());
|
|
}
|
|
if (other->mInnerView) {
|
|
EndSwapDocShellsForViews(other->mInnerView->GetFirstChild());
|
|
}
|
|
|
|
// Now make sure we reflow both frames, in case their contents
|
|
// determine their size.
|
|
// And repaint them, for good measure, in case there's nothing
|
|
// interesting that happens during reflow.
|
|
if (weakThis.IsAlive()) {
|
|
PresShell()->FrameNeedsReflow(this, IntrinsicDirty::FrameAndAncestors,
|
|
NS_FRAME_IS_DIRTY);
|
|
InvalidateFrameSubtree();
|
|
PropagateIsUnderHiddenEmbedderElement(
|
|
PresShell()->IsUnderHiddenEmbedderElement() ||
|
|
!StyleVisibility()->IsVisible());
|
|
}
|
|
if (weakOther.IsAlive()) {
|
|
other->PresShell()->FrameNeedsReflow(
|
|
other, IntrinsicDirty::FrameAndAncestors, NS_FRAME_IS_DIRTY);
|
|
other->InvalidateFrameSubtree();
|
|
other->PropagateIsUnderHiddenEmbedderElement(
|
|
other->PresShell()->IsUnderHiddenEmbedderElement() ||
|
|
!other->StyleVisibility()->IsVisible());
|
|
}
|
|
}
|
|
|
|
void nsSubDocumentFrame::ClearDisplayItems() {
|
|
if (auto* builder = nsLayoutUtils::GetRetainedDisplayListBuilder(this)) {
|
|
DL_LOGD("nsSubDocumentFrame::ClearDisplayItems() %p", this);
|
|
builder->ClearRetainedData();
|
|
}
|
|
}
|
|
|
|
nsView* nsSubDocumentFrame::EnsureInnerView() {
|
|
if (mInnerView) {
|
|
return mInnerView;
|
|
}
|
|
|
|
// create, init, set the parent of the view
|
|
nsView* outerView = GetView();
|
|
NS_ASSERTION(outerView, "Must have an outer view already");
|
|
nsRect viewBounds(0, 0, 0, 0); // size will be fixed during reflow
|
|
|
|
nsViewManager* viewMan = outerView->GetViewManager();
|
|
nsView* innerView = viewMan->CreateView(viewBounds, outerView);
|
|
if (!innerView) {
|
|
NS_ERROR("Could not create inner view");
|
|
return nullptr;
|
|
}
|
|
mInnerView = innerView;
|
|
viewMan->InsertChild(outerView, innerView, nullptr, true);
|
|
|
|
return mInnerView;
|
|
}
|
|
|
|
nsPoint nsSubDocumentFrame::GetExtraOffset() const {
|
|
MOZ_ASSERT(mInnerView);
|
|
return mInnerView->GetPosition();
|
|
}
|
|
|
|
void nsSubDocumentFrame::SubdocumentIntrinsicSizeOrRatioChanged() {
|
|
const nsStylePosition* pos = StylePosition();
|
|
bool dependsOnIntrinsics = !pos->GetWidth().ConvertsToLength() ||
|
|
!pos->GetHeight().ConvertsToLength();
|
|
|
|
if (dependsOnIntrinsics || pos->mObjectFit != StyleObjectFit::Fill) {
|
|
auto dirtyHint = dependsOnIntrinsics
|
|
? IntrinsicDirty::FrameAncestorsAndDescendants
|
|
: IntrinsicDirty::None;
|
|
PresShell()->FrameNeedsReflow(this, dirtyHint, NS_FRAME_IS_DIRTY);
|
|
InvalidateFrame();
|
|
}
|
|
}
|
|
|
|
bool nsSubDocumentFrame::ContentReactsToPointerEvents() const {
|
|
if (Style()->PointerEvents() == StylePointerEvents::None) {
|
|
return false;
|
|
}
|
|
if (mIsInObjectOrEmbed) {
|
|
if (nsCOMPtr<nsIObjectLoadingContent> iolc = do_QueryInterface(mContent)) {
|
|
const auto* olc = static_cast<nsObjectLoadingContent*>(iolc.get());
|
|
if (olc->IsSyntheticImageDocument()) {
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
|
|
nsDisplayRemote::nsDisplayRemote(nsDisplayListBuilder* aBuilder,
|
|
nsSubDocumentFrame* aFrame)
|
|
: nsPaintedDisplayItem(aBuilder, aFrame),
|
|
mEventRegionsOverride(EventRegionsOverride::NoOverride) {
|
|
if (aBuilder->BuildCompositorHitTestInfo()) {
|
|
if (aBuilder->IsInsidePointerEventsNoneDoc() ||
|
|
!aFrame->ContentReactsToPointerEvents()) {
|
|
mEventRegionsOverride |= EventRegionsOverride::ForceEmptyHitRegion;
|
|
}
|
|
if (nsLayoutUtils::HasDocumentLevelListenersForApzAwareEvents(
|
|
aFrame->PresShell())) {
|
|
mEventRegionsOverride |= EventRegionsOverride::ForceDispatchToContent;
|
|
}
|
|
}
|
|
|
|
mPaintData = aFrame->GetRemotePaintData();
|
|
}
|
|
|
|
namespace mozilla {
|
|
|
|
void nsDisplayRemote::Paint(nsDisplayListBuilder* aBuilder, gfxContext* aCtx) {
|
|
DrawTarget* target = aCtx->GetDrawTarget();
|
|
if (!target->IsRecording() || mPaintData.mTabId == 0) {
|
|
NS_WARNING("Remote iframe not rendered");
|
|
return;
|
|
}
|
|
|
|
// Rendering the inner document will apply a scale to account for its app
|
|
// units per dev pixel ratio. We want to apply the inverse scaling using our
|
|
// app units per dev pixel ratio, so that no actual scaling will be applied if
|
|
// they match. For in-process rendering, nsSubDocumentFrame creates an
|
|
// nsDisplayZoom item if the app units per dev pixel ratio changes.
|
|
//
|
|
// Similarly, rendering the inner document will scale up by the cross process
|
|
// paint scale again, so we also need to account for that.
|
|
const int32_t appUnitsPerDevPixel =
|
|
mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
|
|
gfxContextMatrixAutoSaveRestore saveMatrix(aCtx);
|
|
gfxFloat targetAuPerDev =
|
|
gfxFloat(AppUnitsPerCSSPixel()) / aCtx->GetCrossProcessPaintScale();
|
|
|
|
gfxFloat scale = targetAuPerDev / appUnitsPerDevPixel;
|
|
aCtx->Multiply(gfxMatrix::Scaling(scale, scale));
|
|
|
|
Rect destRect =
|
|
NSRectToSnappedRect(GetContentRect(), targetAuPerDev, *target);
|
|
target->DrawDependentSurface(mPaintData.mTabId, destRect);
|
|
}
|
|
|
|
bool nsDisplayRemote::CreateWebRenderCommands(
|
|
mozilla::wr::DisplayListBuilder& aBuilder,
|
|
mozilla::wr::IpcResourceUpdateQueue& aResources,
|
|
const StackingContextHelper& aSc,
|
|
mozilla::layers::RenderRootStateManager* aManager,
|
|
nsDisplayListBuilder* aDisplayListBuilder) {
|
|
if (!mPaintData.mLayersId.IsValid()) {
|
|
return true;
|
|
}
|
|
|
|
auto* subDocFrame = static_cast<nsSubDocumentFrame*>(mFrame);
|
|
nsRect destRect = subDocFrame->GetDestRect();
|
|
if (aDisplayListBuilder->IsForPainting()) {
|
|
subDocFrame->SetRasterScale(aSc.GetInheritedScale());
|
|
const nsRect buildingRect = GetBuildingRect() - ToReferenceFrame();
|
|
Maybe<nsRect> visibleRect =
|
|
buildingRect.EdgeInclusiveIntersection(destRect);
|
|
if (visibleRect) {
|
|
*visibleRect -= destRect.TopLeft();
|
|
}
|
|
subDocFrame->SetVisibleRect(visibleRect);
|
|
}
|
|
nscoord auPerDevPixel = mFrame->PresContext()->AppUnitsPerDevPixel();
|
|
nsPoint layerOffset =
|
|
aDisplayListBuilder->ToReferenceFrame(mFrame) + destRect.TopLeft();
|
|
mOffset = LayoutDevicePoint::FromAppUnits(layerOffset, auPerDevPixel);
|
|
|
|
destRect.MoveTo(0, 0);
|
|
auto rect = LayoutDeviceRect::FromAppUnits(destRect, auPerDevPixel);
|
|
rect += mOffset;
|
|
|
|
aBuilder.PushIFrame(rect, !BackfaceIsHidden(),
|
|
mozilla::wr::AsPipelineId(mPaintData.mLayersId),
|
|
/*ignoreMissingPipelines*/ true);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool nsDisplayRemote::UpdateScrollData(
|
|
mozilla::layers::WebRenderScrollData* aData,
|
|
mozilla::layers::WebRenderLayerScrollData* aLayerData) {
|
|
if (!mPaintData.mLayersId.IsValid()) {
|
|
return true;
|
|
}
|
|
|
|
if (aLayerData) {
|
|
aLayerData->SetReferentId(mPaintData.mLayersId);
|
|
|
|
auto size = static_cast<nsSubDocumentFrame*>(mFrame)->GetSubdocumentSize();
|
|
Matrix4x4 m = Matrix4x4::Translation(mOffset.x, mOffset.y, 0.0);
|
|
aLayerData->SetTransform(m);
|
|
aLayerData->SetEventRegionsOverride(mEventRegionsOverride);
|
|
aLayerData->SetRemoteDocumentSize(LayerIntSize(size.width, size.height));
|
|
}
|
|
return true;
|
|
}
|
|
|
|
nsFrameLoader* nsDisplayRemote::GetFrameLoader() const {
|
|
return static_cast<nsSubDocumentFrame*>(mFrame)->FrameLoader();
|
|
}
|
|
|
|
} // namespace mozilla
|