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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/PresShell.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/FromParser.h"
#include "mozilla/dom/NodeInfo.h"
#include "nsHTMLParts.h"
#include "nsContainerFrame.h"
#include "nsCSSRendering.h"
#include "nsPageFrame.h"
#include "nsStyleConsts.h"
#include "nsGkAtoms.h"
#include "nsBoxFrame.h"
#include "nsStackLayout.h"
#include "nsIAnonymousContentCreator.h"
#include "nsNodeInfoManager.h"
#include "nsContentCreatorFunctions.h"
using namespace mozilla;
using namespace mozilla::dom;
class nsDocElementBoxFrame final : public nsBoxFrame,
public nsIAnonymousContentCreator {
public:
virtual void DestroyFrom(nsIFrame* aDestructRoot,
PostDestroyData& aPostDestroyData) override;
friend nsIFrame* NS_NewBoxFrame(mozilla::PresShell* aPresShell,
ComputedStyle* aStyle);
explicit nsDocElementBoxFrame(ComputedStyle* aStyle,
nsPresContext* aPresContext)
: nsBoxFrame(aStyle, aPresContext, kClassID, true) {}
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS(nsDocElementBoxFrame)
// nsIAnonymousContentCreator
virtual nsresult CreateAnonymousContent(
nsTArray<ContentInfo>& aElements) override;
virtual void AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
uint32_t aFilter) override;
virtual bool IsFrameOfType(uint32_t aFlags) const override {
// Override nsBoxFrame.
if (aFlags & (nsIFrame::eReplacedContainsBlock | nsIFrame::eReplaced))
return false;
return nsBoxFrame::IsFrameOfType(aFlags);
}
#ifdef DEBUG_FRAME_DUMP
virtual nsresult GetFrameName(nsAString& aResult) const override;
#endif
private:
nsCOMPtr<Element> mPopupgroupContent;
nsCOMPtr<Element> mTooltipContent;
};
//----------------------------------------------------------------------
nsContainerFrame* NS_NewDocElementBoxFrame(PresShell* aPresShell,
ComputedStyle* aStyle) {
return new (aPresShell)
nsDocElementBoxFrame(aStyle, aPresShell->GetPresContext());
}
NS_IMPL_FRAMEARENA_HELPERS(nsDocElementBoxFrame)
void nsDocElementBoxFrame::DestroyFrom(nsIFrame* aDestructRoot,
PostDestroyData& aPostDestroyData) {
aPostDestroyData.AddAnonymousContent(mPopupgroupContent.forget());
aPostDestroyData.AddAnonymousContent(mTooltipContent.forget());
nsBoxFrame::DestroyFrom(aDestructRoot, aPostDestroyData);
}
nsresult nsDocElementBoxFrame::CreateAnonymousContent(
nsTArray<ContentInfo>& aElements) {
Document* doc = mContent->GetComposedDoc();
if (!doc) {
// The page is currently being torn down. Why bother.
return NS_ERROR_FAILURE;
}
nsNodeInfoManager* nodeInfoManager = doc->NodeInfoManager();
// create the top-secret popupgroup node. shhhhh!
RefPtr<NodeInfo> nodeInfo;
nodeInfo = nodeInfoManager->GetNodeInfo(
nsGkAtoms::popupgroup, nullptr, kNameSpaceID_XUL, nsINode::ELEMENT_NODE);
NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = NS_NewXULElement(getter_AddRefs(mPopupgroupContent),
nodeInfo.forget(), dom::NOT_FROM_PARSER);
NS_ENSURE_SUCCESS(rv, rv);
// XXX(Bug 1631371) Check if this should use a fallible operation as it
// pretended earlier.
aElements.AppendElement(mPopupgroupContent);
// create the top-secret default tooltip node. shhhhh!
nodeInfo = nodeInfoManager->GetNodeInfo(
nsGkAtoms::tooltip, nullptr, kNameSpaceID_XUL, nsINode::ELEMENT_NODE);
NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
rv = NS_NewXULElement(getter_AddRefs(mTooltipContent), nodeInfo.forget(),
dom::NOT_FROM_PARSER);
NS_ENSURE_SUCCESS(rv, rv);
mTooltipContent->SetAttr(kNameSpaceID_None, nsGkAtoms::_default, u"true"_ns,
false);
// XXX(Bug 1631371) Check if this should use a fallible operation as it
// pretended earlier.
aElements.AppendElement(mTooltipContent);
return NS_OK;
}
void nsDocElementBoxFrame::AppendAnonymousContentTo(
nsTArray<nsIContent*>& aElements, uint32_t aFilter) {
if (mPopupgroupContent) {
aElements.AppendElement(mPopupgroupContent);
}
if (mTooltipContent) {
aElements.AppendElement(mTooltipContent);
}
}
NS_QUERYFRAME_HEAD(nsDocElementBoxFrame)
NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
NS_QUERYFRAME_TAIL_INHERITING(nsBoxFrame)
#ifdef DEBUG_FRAME_DUMP
nsresult nsDocElementBoxFrame::GetFrameName(nsAString& aResult) const {
return MakeFrameName(u"DocElementBox"_ns, aResult);
}
#endif