mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
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607c3b7a01
Instead do it when we first encounter the root scroll frame. Doing this goes back to bug 635053, where we did it because fixed position items weren't getting included. However in bug 974643 we learned that this was wrong. Displayports aren't relevant to fixed pos content, displayports are only relevant to scrolled content. And we set the dirty rects of fixed pos content specially. The only other thing that should be affected is scrollbars, and we already carefully set their dirty rects too.
1279 lines
42 KiB
C++
1279 lines
42 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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 "gfxPrefs.h"
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#include "mozilla/layout/RenderFrameParent.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 "nsIContentViewer.h"
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#include "nsPresContext.h"
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#include "nsIPresShell.h"
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#include "nsIDocument.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 "nsFrameSetFrame.h"
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#include "nsIDOMHTMLFrameElement.h"
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#include "nsIScrollable.h"
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#include "nsNameSpaceManager.h"
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#include "nsDisplayList.h"
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#include "nsIScrollableFrame.h"
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#include "nsIObjectLoadingContent.h"
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#include "nsLayoutUtils.h"
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#include "FrameLayerBuilder.h"
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#include "nsPluginFrame.h"
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#include "nsContentUtils.h"
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#include "nsIPermissionManager.h"
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#include "nsServiceManagerUtils.h"
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#include "nsIDOMMutationEvent.h"
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using namespace mozilla;
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using mozilla::layout::RenderFrameParent;
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static nsIDocument*
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GetDocumentFromView(nsView* aView)
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{
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NS_PRECONDITION(aView, "");
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nsIFrame* f = aView->GetFrame();
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nsIPresShell* ps = f ? f->PresContext()->PresShell() : nullptr;
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return ps ? ps->GetDocument() : nullptr;
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}
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nsSubDocumentFrame::nsSubDocumentFrame(nsStyleContext* aContext)
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: nsLeafFrame(aContext)
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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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{
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}
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#ifdef ACCESSIBILITY
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a11y::AccType
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nsSubDocumentFrame::AccessibleType()
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{
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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(nsLeafFrame)
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class AsyncFrameInit : public nsRunnable
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{
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public:
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explicit AsyncFrameInit(nsIFrame* aFrame) : mFrame(aFrame) {}
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NS_IMETHOD Run()
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{
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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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nsWeakFrame mFrame;
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};
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static void
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InsertViewsInReverseOrder(nsView* aSibling, nsView* aParent);
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static void
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EndSwapDocShellsForViews(nsView* aView);
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void
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nsSubDocumentFrame::Init(nsIContent* aContent,
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nsContainerFrame* aParent,
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nsIFrame* aPrevInFlow)
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{
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// determine if we are a <frame> or <iframe>
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nsCOMPtr<nsIDOMHTMLFrameElement> frameElem = do_QueryInterface(aContent);
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mIsInline = frameElem ? false : true;
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nsLeafFrame::Init(aContent, aParent, aPrevInFlow);
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// We are going to create an inner view. If we need a view for the
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// OuterFrame but we wait for the normal view creation path in
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// nsCSSFrameConstructor, then we will lose because the inner view's
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// parent will already have been set to some outer view (e.g., the
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// canvas) when it really needs to have this frame's view as its
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// parent. So, create this frame's view right away, whether we
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// really need it or not, and the inner view will get it as the
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// parent.
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if (!HasView()) {
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nsContainerFrame::CreateViewForFrame(this, true);
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}
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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
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// it into the view tree. This happens when we've been reframed, and
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// ensures the presentation persists across reframes. If the frame element
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// has changed documents however, we blow away the presentation.
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RefPtr<nsFrameLoader> frameloader = FrameLoader();
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if (frameloader) {
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nsCOMPtr<nsIDocument> oldContainerDoc;
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nsView* detachedViews =
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frameloader->GetDetachedSubdocView(getter_AddRefs(oldContainerDoc));
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if (detachedViews) {
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if (oldContainerDoc == aContent->OwnerDoc()) {
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// Restore stashed presentation.
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::InsertViewsInReverseOrder(detachedViews, mInnerView);
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::EndSwapDocShellsForViews(mInnerView->GetFirstChild());
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} else {
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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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frameloader->SetDetachedSubdocView(nullptr, nullptr);
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}
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nsContentUtils::AddScriptRunner(new AsyncFrameInit(this));
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}
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void
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nsSubDocumentFrame::ShowViewer()
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{
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if (mCallingShow) {
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return;
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}
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if (!PresContext()->IsDynamic()) {
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// We let the printing code take care of loading the document; just
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// create the inner view for it to use.
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(void) EnsureInnerView();
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} else {
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RefPtr<nsFrameLoader> frameloader = FrameLoader();
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if (frameloader) {
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CSSIntSize margin = GetMarginAttributes();
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nsWeakFrame weakThis(this);
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mCallingShow = true;
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const nsAttrValue* attrValue =
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GetContent()->AsElement()->GetParsedAttr(nsGkAtoms::scrolling);
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int32_t scrolling =
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nsGenericHTMLFrameElement::MapScrollingAttribute(attrValue);
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bool didCreateDoc =
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frameloader->Show(margin.width, margin.height,
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scrolling, scrolling, 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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}
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}
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}
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nsIFrame*
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nsSubDocumentFrame::GetSubdocumentRootFrame()
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{
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if (!mInnerView)
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return nullptr;
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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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nsIPresShell*
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nsSubDocumentFrame::GetSubdocumentPresShellForPainting(uint32_t aFlags)
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{
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if (!mInnerView)
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return nullptr;
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nsView* subdocView = mInnerView->GetFirstChild();
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if (!subdocView)
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return nullptr;
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nsIPresShell* presShell = nullptr;
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nsIFrame* subdocRootFrame = subdocView->GetFrame();
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if (subdocRootFrame) {
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presShell = subdocRootFrame->PresContext()->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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nsIPresShell* ps = frame->PresContext()->PresShell();
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if (!presShell || (ps && !ps->IsPaintingSuppressed())) {
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subdocView = nextView;
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subdocRootFrame = frame;
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presShell = ps;
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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 shell.
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if (!mFrameLoader)
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return nullptr;
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nsCOMPtr<nsIDocShell> docShell;
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mFrameLoader->GetDocShell(getter_AddRefs(docShell));
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if (!docShell)
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return nullptr;
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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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ScreenIntSize
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nsSubDocumentFrame::GetSubdocumentSize()
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{
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if (GetStateBits() & NS_FRAME_FIRST_REFLOW) {
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RefPtr<nsFrameLoader> frameloader = FrameLoader();
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if (frameloader) {
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nsCOMPtr<nsIDocument> oldContainerDoc;
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nsView* detachedViews =
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frameloader->GetDetachedSubdocView(getter_AddRefs(oldContainerDoc));
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if (detachedViews) {
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nsSize size = detachedViews->GetBounds().Size();
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nsPresContext* presContext = detachedViews->GetFrame()->PresContext();
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return ScreenIntSize(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 ScreenIntSize(10, 10);
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} else {
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nsSize docSizeAppUnits;
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nsPresContext* presContext = PresContext();
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nsCOMPtr<nsIDOMHTMLFrameElement> frameElem =
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do_QueryInterface(GetContent());
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if (frameElem) {
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docSizeAppUnits = GetSize();
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} else {
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docSizeAppUnits = GetContentRect().Size();
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}
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// Adjust subdocument size, according to 'object-fit' and the
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// subdocument's intrinsic size and ratio.
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nsIFrame* subDocRoot = ObtainIntrinsicSizeFrame();
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if (subDocRoot) {
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nsRect destRect =
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nsLayoutUtils::ComputeObjectDestRect(nsRect(nsPoint(), docSizeAppUnits),
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subDocRoot->GetIntrinsicSize(),
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subDocRoot->GetIntrinsicRatio(),
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StylePosition());
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docSizeAppUnits = destRect.Size();
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}
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return ScreenIntSize(presContext->AppUnitsToDevPixels(docSizeAppUnits.width),
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presContext->AppUnitsToDevPixels(docSizeAppUnits.height));
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}
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}
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bool
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nsSubDocumentFrame::PassPointerEventsToChildren()
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{
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// Limit use of mozpasspointerevents to documents with embedded:apps/chrome
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// permission, because this could be used by the parent document to discover
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// which parts of the subdocument are transparent to events (if subdocument
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// uses pointer-events:none on its root element, which is admittedly
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// unlikely)
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if (mContent->HasAttr(kNameSpaceID_None, nsGkAtoms::mozpasspointerevents)) {
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if (PresContext()->IsChrome()) {
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return true;
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}
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nsCOMPtr<nsIPermissionManager> permMgr =
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services::GetPermissionManager();
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if (permMgr) {
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uint32_t permission = nsIPermissionManager::DENY_ACTION;
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permMgr->TestPermissionFromPrincipal(GetContent()->NodePrincipal(),
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"embed-apps", &permission);
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return permission == nsIPermissionManager::ALLOW_ACTION;
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}
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}
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return false;
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}
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static void
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WrapBackgroundColorInOwnLayer(nsDisplayListBuilder* aBuilder,
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nsIFrame* aFrame,
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nsDisplayList* aList)
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{
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nsDisplayList tempItems;
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nsDisplayItem* item;
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while ((item = aList->RemoveBottom()) != nullptr) {
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if (item->GetType() == nsDisplayItem::TYPE_BACKGROUND_COLOR) {
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nsDisplayList tmpList;
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tmpList.AppendToTop(item);
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item = new (aBuilder) nsDisplayOwnLayer(aBuilder, aFrame, &tmpList);
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}
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tempItems.AppendToTop(item);
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}
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aList->AppendToTop(&tempItems);
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}
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void
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nsSubDocumentFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists)
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{
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if (!IsVisibleForPainting(aBuilder))
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return;
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nsFrameLoader* frameLoader = FrameLoader();
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RenderFrameParent* rfp = nullptr;
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if (frameLoader) {
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rfp = frameLoader->GetCurrentRenderFrame();
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}
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// If we are pointer-events:none then we don't need to HitTest background
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bool pointerEventsNone = StyleVisibility()->mPointerEvents == NS_STYLE_POINTER_EVENTS_NONE;
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if (!aBuilder->IsForEventDelivery() || !pointerEventsNone) {
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nsDisplayListCollection decorations;
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DisplayBorderBackgroundOutline(aBuilder, decorations);
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if (rfp) {
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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, decorations.BorderBackground());
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}
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decorations.MoveTo(aLists);
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}
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// We only care about mozpasspointerevents if we're doing hit-testing
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// related things.
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bool passPointerEventsToChildren =
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(aBuilder->IsForEventDelivery() || aBuilder->IsBuildingLayerEventRegions())
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? PassPointerEventsToChildren() : false;
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// If mozpasspointerevents is set, then we should allow subdocument content
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// to handle events even if we're pointer-events:none.
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if (aBuilder->IsForEventDelivery() && pointerEventsNone && !passPointerEventsToChildren) {
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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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bool needToDescend = aBuilder->GetDescendIntoSubdocuments() || passPointerEventsToChildren;
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if (!mInnerView || !needToDescend) {
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return;
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}
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if (rfp) {
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rfp->BuildDisplayList(aBuilder, this, aDirtyRect, aLists);
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return;
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}
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nsCOMPtr<nsIPresShell> presShell =
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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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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 dirty;
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bool haveDisplayPort = false;
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bool ignoreViewportScrolling = false;
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nsIFrame* savedIgnoreScrollFrame = nullptr;
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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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dirty = aDirtyRect + GetOffsetToCrossDoc(subdocRootFrame);
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// and convert into the appunits of the subdoc
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dirty = dirty.ScaleToOtherAppUnitsRoundOut(parentAPD, subdocAPD);
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if (nsIFrame* rootScrollFrame = presShell->GetRootScrollFrame()) {
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nsIScrollableFrame* rootScrollableFrame = presShell->GetRootScrollFrameAsScrollable();
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MOZ_ASSERT(rootScrollableFrame);
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// Use a copy, so the dirty rect doesn't get modified to the display port.
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nsRect copy = dirty;
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haveDisplayPort = rootScrollableFrame->DecideScrollableLayer(aBuilder,
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©, /* aAllowCreateDisplayPort = */ true);
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if (!gfxPrefs::LayoutUseContainersForRootFrames()) {
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haveDisplayPort = false;
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}
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ignoreViewportScrolling = presShell->IgnoringViewportScrolling();
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if (ignoreViewportScrolling) {
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savedIgnoreScrollFrame = aBuilder->GetIgnoreScrollFrame();
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aBuilder->SetIgnoreScrollFrame(rootScrollFrame);
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}
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}
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aBuilder->EnterPresShell(subdocRootFrame,
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pointerEventsNone && !passPointerEventsToChildren);
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} else {
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dirty = aDirtyRect;
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}
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DisplayListClipState::AutoSaveRestore clipState(aBuilder);
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if (ShouldClipSubdocument()) {
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clipState.ClipContainingBlockDescendantsToContentBox(aBuilder, this);
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}
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nsIScrollableFrame *sf = presShell->GetRootScrollFrameAsScrollable();
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bool constructResolutionItem = subdocRootFrame &&
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(presShell->GetResolution() != 1.0);
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bool constructZoomItem = subdocRootFrame && parentAPD != subdocAPD;
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bool needsOwnLayer = false;
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if (constructResolutionItem ||
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constructZoomItem ||
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haveDisplayPort ||
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presContext->IsRootContentDocument() ||
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(sf && sf->IsScrollingActive(aBuilder)))
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{
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needsOwnLayer = true;
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}
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if (!needsOwnLayer && aBuilder->IsBuildingLayerEventRegions() &&
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nsLayoutUtils::HasDocumentLevelListenersForApzAwareEvents(presShell))
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{
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needsOwnLayer = true;
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}
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nsDisplayList childItems;
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{
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DisplayListClipState::AutoSaveRestore nestedClipState(aBuilder);
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if (needsOwnLayer) {
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// Clear current clip. There's no point in propagating it down, since
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// the layer we will construct will be clipped by the current clip.
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// In fact for nsDisplayZoom propagating it down would be incorrect since
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// nsDisplayZoom changes the meaning of appunits.
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nestedClipState.ClearForStackingContextContents();
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}
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if (subdocRootFrame) {
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nsIFrame* rootScrollFrame = presShell->GetRootScrollFrame();
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nsDisplayListBuilder::AutoCurrentScrollParentIdSetter idSetter(
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aBuilder,
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ignoreViewportScrolling && rootScrollFrame && rootScrollFrame->GetContent()
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? nsLayoutUtils::FindOrCreateIDFor(rootScrollFrame->GetContent())
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: aBuilder->GetCurrentScrollParentId());
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aBuilder->SetAncestorHasApzAwareEventHandler(false);
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subdocRootFrame->
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BuildDisplayListForStackingContext(aBuilder, dirty, &childItems);
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}
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if (!aBuilder->IsForEventDelivery()) {
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// If we are going to use a displayzoom below then any items we put under
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// it need to have underlying frames from the subdocument. So we need to
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// calculate the bounds based on which frame will be the underlying frame
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// for the canvas background color item.
|
|
nsRect bounds = GetContentRectRelativeToSelf() +
|
|
aBuilder->ToReferenceFrame(this);
|
|
if (subdocRootFrame) {
|
|
bounds = bounds.ScaleToOtherAppUnitsRoundOut(parentAPD, subdocAPD);
|
|
}
|
|
|
|
// If we are in print preview/page layout we want to paint the grey
|
|
// background behind the page, not the canvas color. The canvas color gets
|
|
// painted on the page itself.
|
|
if (nsLayoutUtils::NeedsPrintPreviewBackground(presContext)) {
|
|
presShell->AddPrintPreviewBackgroundItem(
|
|
*aBuilder, childItems, subdocRootFrame ? subdocRootFrame : this,
|
|
bounds);
|
|
} else {
|
|
// 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, dirty, true);
|
|
// 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.
|
|
uint32_t flags = nsIPresShell::FORCE_DRAW;
|
|
presShell->AddCanvasBackgroundColorItem(
|
|
*aBuilder, childItems, frame, bounds, NS_RGBA(0,0,0,0), flags);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (subdocRootFrame) {
|
|
aBuilder->LeavePresShell(subdocRootFrame);
|
|
|
|
if (ignoreViewportScrolling) {
|
|
aBuilder->SetIgnoreScrollFrame(savedIgnoreScrollFrame);
|
|
}
|
|
}
|
|
|
|
// 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.
|
|
|
|
uint32_t flags = nsDisplayOwnLayer::GENERATE_SUBDOC_INVALIDATIONS;
|
|
// 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) {
|
|
uint32_t zoomFlags = flags;
|
|
if (ignoreViewportScrolling && !constructResolutionItem) {
|
|
zoomFlags |= nsDisplayOwnLayer::GENERATE_SCROLLABLE_LAYER;
|
|
}
|
|
nsDisplayZoom* zoomItem =
|
|
new (aBuilder) nsDisplayZoom(aBuilder, subdocRootFrame, &childItems,
|
|
subdocAPD, parentAPD, zoomFlags);
|
|
childItems.AppendToTop(zoomItem);
|
|
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 |= nsDisplayOwnLayer::GENERATE_SCROLLABLE_LAYER;
|
|
}
|
|
if (constructResolutionItem) {
|
|
nsDisplayResolution* resolutionItem =
|
|
new (aBuilder) nsDisplayResolution(aBuilder, subdocRootFrame, &childItems,
|
|
flags);
|
|
childItems.AppendToTop(resolutionItem);
|
|
needsOwnLayer = false;
|
|
}
|
|
if (needsOwnLayer) {
|
|
// We always want top level content documents to be in their own layer.
|
|
nsDisplaySubDocument* layerItem = new (aBuilder) nsDisplaySubDocument(
|
|
aBuilder, subdocRootFrame ? subdocRootFrame : this,
|
|
&childItems, flags);
|
|
childItems.AppendToTop(layerItem);
|
|
}
|
|
|
|
if (aBuilder->IsForImageVisibility()) {
|
|
// We don't add the childItems to the return list as we're dealing with them here.
|
|
presShell->RebuildImageVisibilityDisplayList(childItems);
|
|
childItems.DeleteAll();
|
|
} else {
|
|
aLists.Content()->AppendToTop(&childItems);
|
|
}
|
|
}
|
|
|
|
nscoord
|
|
nsSubDocumentFrame::GetIntrinsicISize()
|
|
{
|
|
if (!IsInline()) {
|
|
return 0; // HTML <frame> has no useful intrinsic isize
|
|
}
|
|
|
|
if (mContent->IsXULElement()) {
|
|
return 0; // XUL <iframe> and <browser> have no useful intrinsic isize
|
|
}
|
|
|
|
NS_ASSERTION(ObtainIntrinsicSizeFrame() == nullptr,
|
|
"Intrinsic isize should come from the embedded document.");
|
|
|
|
// We must be an HTML <iframe>. Default to size of 300px x 150px, for IE
|
|
// compat (and per CSS2.1 draft).
|
|
// This depends on the applied styles, which the comments in nsLeafFrame.h
|
|
// say it should not, but we know it cannot change during the lifetime of
|
|
// the frame because changing writing-mode leads to frame reconstruction.
|
|
WritingMode wm = GetWritingMode();
|
|
return nsPresContext::CSSPixelsToAppUnits(wm.IsVertical() ? 150 : 300);
|
|
}
|
|
|
|
nscoord
|
|
nsSubDocumentFrame::GetIntrinsicBSize()
|
|
{
|
|
// <frame> processing does not use this routine, only <iframe>
|
|
NS_ASSERTION(IsInline(), "Shouldn't have been called");
|
|
|
|
if (mContent->IsXULElement()) {
|
|
return 0;
|
|
}
|
|
|
|
NS_ASSERTION(ObtainIntrinsicSizeFrame() == nullptr,
|
|
"Intrinsic bsize should come from the embedded document.");
|
|
|
|
// Use size of 300px x 150px, for compatibility with IE, and per CSS2.1 draft.
|
|
WritingMode wm = GetWritingMode();
|
|
return nsPresContext::CSSPixelsToAppUnits(wm.IsVertical() ? 300 : 150);
|
|
}
|
|
|
|
#ifdef DEBUG_FRAME_DUMP
|
|
void
|
|
nsSubDocumentFrame::List(FILE* out, const char* aPrefix, uint32_t aFlags) const
|
|
{
|
|
nsCString str;
|
|
ListGeneric(str, aPrefix, aFlags);
|
|
fprintf_stderr(out, "%s\n", str.get());
|
|
|
|
if (aFlags & TRAVERSE_SUBDOCUMENT_FRAMES) {
|
|
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(NS_LITERAL_STRING("FrameOuter"), aResult);
|
|
}
|
|
#endif
|
|
|
|
nsIAtom*
|
|
nsSubDocumentFrame::GetType() const
|
|
{
|
|
return nsGkAtoms::subDocumentFrame;
|
|
}
|
|
|
|
/* virtual */ nscoord
|
|
nsSubDocumentFrame::GetMinISize(nsRenderingContext *aRenderingContext)
|
|
{
|
|
nscoord result;
|
|
DISPLAY_MIN_WIDTH(this, result);
|
|
|
|
nsIFrame* subDocRoot = ObtainIntrinsicSizeFrame();
|
|
if (subDocRoot) {
|
|
result = subDocRoot->GetMinISize(aRenderingContext);
|
|
} else {
|
|
result = GetIntrinsicISize();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/* virtual */ nscoord
|
|
nsSubDocumentFrame::GetPrefISize(nsRenderingContext *aRenderingContext)
|
|
{
|
|
nscoord result;
|
|
DISPLAY_PREF_WIDTH(this, result);
|
|
|
|
nsIFrame* subDocRoot = ObtainIntrinsicSizeFrame();
|
|
if (subDocRoot) {
|
|
result = subDocRoot->GetPrefISize(aRenderingContext);
|
|
} else {
|
|
result = GetIntrinsicISize();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/* virtual */ IntrinsicSize
|
|
nsSubDocumentFrame::GetIntrinsicSize()
|
|
{
|
|
nsIFrame* subDocRoot = ObtainIntrinsicSizeFrame();
|
|
if (subDocRoot) {
|
|
return subDocRoot->GetIntrinsicSize();
|
|
}
|
|
return nsLeafFrame::GetIntrinsicSize();
|
|
}
|
|
|
|
/* virtual */ nsSize
|
|
nsSubDocumentFrame::GetIntrinsicRatio()
|
|
{
|
|
nsIFrame* subDocRoot = ObtainIntrinsicSizeFrame();
|
|
if (subDocRoot) {
|
|
return subDocRoot->GetIntrinsicRatio();
|
|
}
|
|
return nsLeafFrame::GetIntrinsicRatio();
|
|
}
|
|
|
|
/* virtual */
|
|
LogicalSize
|
|
nsSubDocumentFrame::ComputeAutoSize(nsRenderingContext *aRenderingContext,
|
|
WritingMode aWM,
|
|
const LogicalSize& aCBSize,
|
|
nscoord aAvailableISize,
|
|
const LogicalSize& aMargin,
|
|
const LogicalSize& aBorder,
|
|
const LogicalSize& aPadding,
|
|
bool aShrinkWrap)
|
|
{
|
|
if (!IsInline()) {
|
|
return nsFrame::ComputeAutoSize(aRenderingContext, aWM, aCBSize,
|
|
aAvailableISize, aMargin, aBorder,
|
|
aPadding, aShrinkWrap);
|
|
}
|
|
|
|
return nsLeafFrame::ComputeAutoSize(aRenderingContext, aWM, aCBSize,
|
|
aAvailableISize, aMargin, aBorder,
|
|
aPadding, aShrinkWrap);
|
|
}
|
|
|
|
|
|
/* virtual */
|
|
LogicalSize
|
|
nsSubDocumentFrame::ComputeSize(nsRenderingContext *aRenderingContext,
|
|
WritingMode aWM,
|
|
const LogicalSize& aCBSize,
|
|
nscoord aAvailableISize,
|
|
const LogicalSize& aMargin,
|
|
const LogicalSize& aBorder,
|
|
const LogicalSize& aPadding,
|
|
ComputeSizeFlags aFlags)
|
|
{
|
|
nsIFrame* subDocRoot = ObtainIntrinsicSizeFrame();
|
|
if (subDocRoot) {
|
|
return nsLayoutUtils::ComputeSizeWithIntrinsicDimensions(aWM,
|
|
aRenderingContext, this,
|
|
subDocRoot->GetIntrinsicSize(),
|
|
subDocRoot->GetIntrinsicRatio(),
|
|
aCBSize,
|
|
aMargin,
|
|
aBorder,
|
|
aPadding);
|
|
}
|
|
return nsLeafFrame::ComputeSize(aRenderingContext, aWM,
|
|
aCBSize, aAvailableISize,
|
|
aMargin, aBorder, aPadding, aFlags);
|
|
}
|
|
|
|
void
|
|
nsSubDocumentFrame::Reflow(nsPresContext* aPresContext,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus)
|
|
{
|
|
MarkInReflow();
|
|
DO_GLOBAL_REFLOW_COUNT("nsSubDocumentFrame");
|
|
DISPLAY_REFLOW(aPresContext, this, aReflowState, aDesiredSize, aStatus);
|
|
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
|
|
("enter nsSubDocumentFrame::Reflow: maxSize=%d,%d",
|
|
aReflowState.AvailableWidth(), aReflowState.AvailableHeight()));
|
|
|
|
aStatus = NS_FRAME_COMPLETE;
|
|
|
|
NS_ASSERTION(mContent->GetPrimaryFrame() == this,
|
|
"Shouldn't happen");
|
|
|
|
// XUL <iframe> or <browser>, or HTML <iframe>, <object> or <embed>
|
|
nsLeafFrame::DoReflow(aPresContext, aDesiredSize, aReflowState, aStatus);
|
|
|
|
// "offset" is the offset of our content area from our frame's
|
|
// top-left corner.
|
|
nsPoint offset = nsPoint(aReflowState.ComputedPhysicalBorderPadding().left,
|
|
aReflowState.ComputedPhysicalBorderPadding().top);
|
|
|
|
if (mInnerView) {
|
|
const nsMargin& bp = aReflowState.ComputedPhysicalBorderPadding();
|
|
nsSize innerSize(aDesiredSize.Width() - bp.LeftRight(),
|
|
aDesiredSize.Height() - bp.TopBottom());
|
|
|
|
// Size & position the view according to 'object-fit' & 'object-position'.
|
|
nsIFrame* subDocRoot = ObtainIntrinsicSizeFrame();
|
|
IntrinsicSize intrinsSize;
|
|
nsSize intrinsRatio;
|
|
if (subDocRoot) {
|
|
intrinsSize = subDocRoot->GetIntrinsicSize();
|
|
intrinsRatio = subDocRoot->GetIntrinsicRatio();
|
|
}
|
|
nsRect destRect =
|
|
nsLayoutUtils::ComputeObjectDestRect(nsRect(offset, innerSize),
|
|
intrinsSize, intrinsRatio,
|
|
StylePosition());
|
|
|
|
nsViewManager* vm = mInnerView->GetViewManager();
|
|
vm->MoveViewTo(mInnerView, destRect.x, destRect.y);
|
|
vm->ResizeView(mInnerView, nsRect(nsPoint(0, 0), destRect.Size()), true);
|
|
}
|
|
|
|
aDesiredSize.SetOverflowAreasToDesiredBounds();
|
|
if (!ShouldClipSubdocument()) {
|
|
nsIFrame* subdocRootFrame = GetSubdocumentRootFrame();
|
|
if (subdocRootFrame) {
|
|
aDesiredSize.mOverflowAreas.UnionWith(subdocRootFrame->GetOverflowAreas() + offset);
|
|
}
|
|
}
|
|
|
|
FinishAndStoreOverflow(&aDesiredSize);
|
|
|
|
if (!aPresContext->IsPaginated() && !mPostedReflowCallback) {
|
|
PresContext()->PresShell()->PostReflowCallback(this);
|
|
mPostedReflowCallback = true;
|
|
}
|
|
|
|
NS_FRAME_TRACE(NS_FRAME_TRACE_CALLS,
|
|
("exit nsSubDocumentFrame::Reflow: size=%d,%d status=%x",
|
|
aDesiredSize.Width(), aDesiredSize.Height(), aStatus));
|
|
|
|
NS_FRAME_SET_TRUNCATION(aStatus, aReflowState, aDesiredSize);
|
|
}
|
|
|
|
bool
|
|
nsSubDocumentFrame::ReflowFinished()
|
|
{
|
|
if (mFrameLoader) {
|
|
nsWeakFrame weakFrame(this);
|
|
|
|
mFrameLoader->UpdatePositionAndSize(this);
|
|
|
|
if (weakFrame.IsAlive()) {
|
|
// Make sure that we can post a reflow callback in the future.
|
|
mPostedReflowCallback = false;
|
|
}
|
|
} else {
|
|
mPostedReflowCallback = false;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
void
|
|
nsSubDocumentFrame::ReflowCallbackCanceled()
|
|
{
|
|
mPostedReflowCallback = false;
|
|
}
|
|
|
|
nsresult
|
|
nsSubDocumentFrame::AttributeChanged(int32_t aNameSpaceID,
|
|
nsIAtom* 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::showresizer) {
|
|
nsIFrame* rootFrame = GetSubdocumentRootFrame();
|
|
if (rootFrame) {
|
|
rootFrame->PresContext()->PresShell()->
|
|
FrameNeedsReflow(rootFrame, nsIPresShell::eResize, NS_FRAME_IS_DIRTY);
|
|
}
|
|
}
|
|
else if (aAttribute == nsGkAtoms::marginwidth ||
|
|
aAttribute == nsGkAtoms::marginheight) {
|
|
|
|
// Retrieve the attributes
|
|
CSSIntSize margins = GetMarginAttributes();
|
|
|
|
// Notify the frameloader
|
|
RefPtr<nsFrameLoader> frameloader = FrameLoader();
|
|
if (frameloader)
|
|
frameloader->MarginsChanged(margins.width, margins.height);
|
|
}
|
|
else if (aAttribute == nsGkAtoms::mozpasspointerevents) {
|
|
RefPtr<nsFrameLoader> frameloader = FrameLoader();
|
|
if (frameloader) {
|
|
if (aModType == nsIDOMMutationEvent::ADDITION) {
|
|
frameloader->ActivateUpdateHitRegion();
|
|
} else if (aModType == nsIDOMMutationEvent::REMOVAL) {
|
|
frameloader->DeactivateUpdateHitRegion();
|
|
}
|
|
}
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIFrame*
|
|
NS_NewSubDocumentFrame(nsIPresShell* aPresShell, nsStyleContext* aContext)
|
|
{
|
|
return new (aPresShell) nsSubDocumentFrame(aContext);
|
|
}
|
|
|
|
NS_IMPL_FRAMEARENA_HELPERS(nsSubDocumentFrame)
|
|
|
|
class nsHideViewer : public nsRunnable {
|
|
public:
|
|
nsHideViewer(nsIContent* aFrameElement,
|
|
nsFrameLoader* aFrameLoader,
|
|
nsIPresShell* aPresShell,
|
|
bool aHideViewerIfFrameless)
|
|
: 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");
|
|
}
|
|
|
|
NS_IMETHOD Run()
|
|
{
|
|
// 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.
|
|
if (!mPresShell->IsDestroying()) {
|
|
mPresShell->FlushPendingNotifications(Flush_Frames);
|
|
}
|
|
nsSubDocumentFrame* frame = do_QueryFrame(mFrameElement->GetPrimaryFrame());
|
|
if ((!frame && mHideViewerIfFrameless) ||
|
|
mPresShell->IsDestroying()) {
|
|
// Either the frame element has no nsIFrame or the presshell is being
|
|
// destroyed. Hide the nsFrameLoader, which destroys the presentation,
|
|
// and clear our references to the stashed presentation.
|
|
mFrameLoader->SetDetachedSubdocView(nullptr, nullptr);
|
|
mFrameLoader->Hide();
|
|
}
|
|
return NS_OK;
|
|
}
|
|
private:
|
|
nsCOMPtr<nsIContent> mFrameElement;
|
|
RefPtr<nsFrameLoader> mFrameLoader;
|
|
nsCOMPtr<nsIPresShell> mPresShell;
|
|
bool mHideViewerIfFrameless;
|
|
};
|
|
|
|
static nsView*
|
|
BeginSwapDocShellsForViews(nsView* aSibling);
|
|
|
|
void
|
|
nsSubDocumentFrame::DestroyFrom(nsIFrame* aDestructRoot)
|
|
{
|
|
if (mPostedReflowCallback) {
|
|
PresContext()->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).
|
|
nsFrameLoader* frameloader = FrameLoader();
|
|
if (frameloader) {
|
|
nsView* detachedViews = ::BeginSwapDocShellsForViews(mInnerView->GetFirstChild());
|
|
frameloader->SetDetachedSubdocView(detachedViews, mContent->OwnerDoc());
|
|
|
|
// 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,
|
|
mFrameLoader,
|
|
PresContext()->PresShell(),
|
|
(mDidCreateDoc || mCallingShow)));
|
|
}
|
|
|
|
nsLeafFrame::DestroyFrom(aDestructRoot);
|
|
}
|
|
|
|
CSSIntSize
|
|
nsSubDocumentFrame::GetMarginAttributes()
|
|
{
|
|
CSSIntSize result(-1, -1);
|
|
nsGenericHTMLElement *content = nsGenericHTMLElement::FromContent(mContent);
|
|
if (content) {
|
|
const nsAttrValue* attr = content->GetParsedAttr(nsGkAtoms::marginwidth);
|
|
if (attr && attr->Type() == nsAttrValue::eInteger)
|
|
result.width = attr->GetIntegerValue();
|
|
attr = content->GetParsedAttr(nsGkAtoms::marginheight);
|
|
if (attr && attr->Type() == nsAttrValue::eInteger)
|
|
result.height = attr->GetIntegerValue();
|
|
}
|
|
return result;
|
|
}
|
|
|
|
nsFrameLoader*
|
|
nsSubDocumentFrame::FrameLoader()
|
|
{
|
|
nsIContent* content = GetContent();
|
|
if (!content)
|
|
return nullptr;
|
|
|
|
if (!mFrameLoader) {
|
|
nsCOMPtr<nsIFrameLoaderOwner> loaderOwner = do_QueryInterface(content);
|
|
if (loaderOwner) {
|
|
nsCOMPtr<nsIFrameLoader> loader;
|
|
loaderOwner->GetFrameLoader(getter_AddRefs(loader));
|
|
mFrameLoader = static_cast<nsFrameLoader*>(loader.get());
|
|
}
|
|
}
|
|
return mFrameLoader;
|
|
}
|
|
|
|
// XXX this should be called ObtainDocShell or something like that,
|
|
// to indicate that it could have side effects
|
|
nsresult
|
|
nsSubDocumentFrame::GetDocShell(nsIDocShell **aDocShell)
|
|
{
|
|
*aDocShell = nullptr;
|
|
|
|
NS_ENSURE_STATE(FrameLoader());
|
|
return mFrameLoader->GetDocShell(aDocShell);
|
|
}
|
|
|
|
static void
|
|
DestroyDisplayItemDataForFrames(nsIFrame* aFrame)
|
|
{
|
|
FrameLayerBuilder::DestroyDisplayItemDataFor(aFrame);
|
|
|
|
nsIFrame::ChildListIterator lists(aFrame);
|
|
for (; !lists.IsDone(); lists.Next()) {
|
|
nsFrameList::Enumerator childFrames(lists.CurrentList());
|
|
for (; !childFrames.AtEnd(); childFrames.Next()) {
|
|
DestroyDisplayItemDataForFrames(childFrames.get());
|
|
}
|
|
}
|
|
}
|
|
|
|
static bool
|
|
BeginSwapDocShellsForDocument(nsIDocument* aDocument, void*)
|
|
{
|
|
NS_PRECONDITION(aDocument, "");
|
|
|
|
nsIPresShell* shell = aDocument->GetShell();
|
|
if (shell) {
|
|
// Disable painting while the views are detached, see bug 946929.
|
|
shell->SetNeverPainting(true);
|
|
|
|
nsIFrame* rootFrame = shell->GetRootFrame();
|
|
if (rootFrame) {
|
|
::DestroyDisplayItemDataForFrames(rootFrame);
|
|
}
|
|
}
|
|
aDocument->EnumerateActivityObservers(
|
|
nsPluginFrame::BeginSwapDocShells, nullptr);
|
|
aDocument->EnumerateSubDocuments(BeginSwapDocShellsForDocument, nullptr);
|
|
return true;
|
|
}
|
|
|
|
static nsView*
|
|
BeginSwapDocShellsForViews(nsView* aSibling)
|
|
{
|
|
// Collect the removed sibling views in reverse order in 'removedViews'.
|
|
nsView* removedViews = nullptr;
|
|
while (aSibling) {
|
|
nsIDocument* doc = ::GetDocumentFromView(aSibling);
|
|
if (doc) {
|
|
::BeginSwapDocShellsForDocument(doc, nullptr);
|
|
}
|
|
nsView* next = aSibling->GetNextSibling();
|
|
aSibling->GetViewManager()->RemoveChild(aSibling);
|
|
aSibling->SetNextSibling(removedViews);
|
|
removedViews = aSibling;
|
|
aSibling = next;
|
|
}
|
|
return removedViews;
|
|
}
|
|
|
|
static void
|
|
InsertViewsInReverseOrder(nsView* aSibling, nsView* aParent)
|
|
{
|
|
NS_PRECONDITION(aParent, "");
|
|
NS_PRECONDITION(!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->GetType() != nsGkAtoms::subDocumentFrame) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
nsSubDocumentFrame* other = static_cast<nsSubDocumentFrame*>(aOther);
|
|
if (!mFrameLoader || !mDidCreateDoc || mCallingShow ||
|
|
!other->mFrameLoader || !other->mDidCreateDoc) {
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
}
|
|
|
|
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 bool
|
|
EndSwapDocShellsForDocument(nsIDocument* aDocument, void*)
|
|
{
|
|
NS_PRECONDITION(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.
|
|
nsCOMPtr<nsIDocShell> ds = aDocument->GetDocShell();
|
|
if (ds) {
|
|
nsCOMPtr<nsIContentViewer> cv;
|
|
ds->GetContentViewer(getter_AddRefs(cv));
|
|
while (cv) {
|
|
RefPtr<nsPresContext> pc;
|
|
cv->GetPresContext(getter_AddRefs(pc));
|
|
if (pc && pc->GetPresShell()) {
|
|
pc->GetPresShell()->SetNeverPainting(ds->IsInvisible());
|
|
}
|
|
nsDeviceContext* dc = pc ? pc->DeviceContext() : nullptr;
|
|
if (dc) {
|
|
nsView* v = cv->FindContainerView();
|
|
dc->Init(v ? v->GetNearestWidget(nullptr) : nullptr);
|
|
}
|
|
nsCOMPtr<nsIContentViewer> prev;
|
|
cv->GetPreviousViewer(getter_AddRefs(prev));
|
|
cv = prev;
|
|
}
|
|
}
|
|
|
|
aDocument->EnumerateActivityObservers(
|
|
nsPluginFrame::EndSwapDocShells, nullptr);
|
|
aDocument->EnumerateSubDocuments(EndSwapDocShellsForDocument, nullptr);
|
|
return true;
|
|
}
|
|
|
|
static void
|
|
EndSwapDocShellsForViews(nsView* aSibling)
|
|
{
|
|
for ( ; aSibling; aSibling = aSibling->GetNextSibling()) {
|
|
nsIDocument* doc = ::GetDocumentFromView(aSibling);
|
|
if (doc) {
|
|
::EndSwapDocShellsForDocument(doc, nullptr);
|
|
}
|
|
nsIFrame *frame = aSibling->GetFrame();
|
|
if (frame) {
|
|
nsIFrame* parent = nsLayoutUtils::GetCrossDocParentFrame(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)) {
|
|
parent->AddStateBits(NS_FRAME_DESCENDANT_NEEDS_PAINT);
|
|
parent = nsLayoutUtils::GetCrossDocParentFrame(parent);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsSubDocumentFrame::EndSwapDocShells(nsIFrame* aOther)
|
|
{
|
|
nsSubDocumentFrame* other = static_cast<nsSubDocumentFrame*>(aOther);
|
|
nsWeakFrame weakThis(this);
|
|
nsWeakFrame 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()) {
|
|
PresContext()->PresShell()->
|
|
FrameNeedsReflow(this, nsIPresShell::eTreeChange, NS_FRAME_IS_DIRTY);
|
|
InvalidateFrameSubtree();
|
|
}
|
|
if (weakOther.IsAlive()) {
|
|
other->PresContext()->PresShell()->
|
|
FrameNeedsReflow(other, nsIPresShell::eTreeChange, NS_FRAME_IS_DIRTY);
|
|
other->InvalidateFrameSubtree();
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
nsIFrame*
|
|
nsSubDocumentFrame::ObtainIntrinsicSizeFrame()
|
|
{
|
|
nsCOMPtr<nsIObjectLoadingContent> olc = do_QueryInterface(GetContent());
|
|
if (olc) {
|
|
// We are an HTML <object>, <embed> or <applet> (a replaced element).
|
|
|
|
// Try to get an nsIFrame for our sub-document's document element
|
|
nsIFrame* subDocRoot = nullptr;
|
|
|
|
nsCOMPtr<nsIDocShell> docShell;
|
|
GetDocShell(getter_AddRefs(docShell));
|
|
if (docShell) {
|
|
nsCOMPtr<nsIPresShell> presShell = docShell->GetPresShell();
|
|
if (presShell) {
|
|
nsIScrollableFrame* scrollable = presShell->GetRootScrollFrameAsScrollable();
|
|
if (scrollable) {
|
|
nsIFrame* scrolled = scrollable->GetScrolledFrame();
|
|
if (scrolled) {
|
|
subDocRoot = scrolled->GetFirstPrincipalChild();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (subDocRoot && subDocRoot->GetContent() &&
|
|
subDocRoot->GetContent()->NodeInfo()->Equals(nsGkAtoms::svg, kNameSpaceID_SVG)) {
|
|
return subDocRoot; // SVG documents have an intrinsic size
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|