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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 "DetailsFrame.h"
#include "mozilla/Attributes.h"
#include "mozilla/PresShell.h"
#include "mozilla/dom/HTMLDetailsElement.h"
#include "mozilla/dom/HTMLSummaryElement.h"
#include "nsContentUtils.h"
#include "nsPlaceholderFrame.h"
#include "nsTextNode.h"
using namespace mozilla;
using namespace mozilla::dom;
NS_IMPL_FRAMEARENA_HELPERS(DetailsFrame)
NS_QUERYFRAME_HEAD(DetailsFrame)
NS_QUERYFRAME_ENTRY(DetailsFrame)
NS_QUERYFRAME_ENTRY(nsIAnonymousContentCreator)
NS_QUERYFRAME_TAIL_INHERITING(nsBlockFrame)
nsBlockFrame* NS_NewDetailsFrame(PresShell* aPresShell, ComputedStyle* aStyle) {
return new (aPresShell) DetailsFrame(aStyle, aPresShell->GetPresContext());
}
namespace mozilla {
DetailsFrame::DetailsFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
: nsBlockFrame(aStyle, aPresContext, kClassID) {}
DetailsFrame::~DetailsFrame() = default;
void DetailsFrame::SetInitialChildList(ChildListID aListID,
nsFrameList& aChildList) {
#ifdef DEBUG
if (aListID == kPrincipalList) {
CheckValidMainSummary(aChildList);
}
#endif
nsBlockFrame::SetInitialChildList(aListID, aChildList);
}
#ifdef DEBUG
bool DetailsFrame::CheckValidMainSummary(const nsFrameList& aFrameList) const {
for (nsIFrame* child : aFrameList) {
if (child->IsGeneratedContentFrame()) {
continue;
}
HTMLSummaryElement* summary =
HTMLSummaryElement::FromNode(child->GetContent());
if (child == aFrameList.FirstChild()) {
if (summary && summary->IsMainSummary()) {
return true;
} else if (child->GetContent() == GetContent()) {
// The child frame's content is the same as our content, which means
// it's a kind of wrapper frame. Descend into its child list to find
// main summary.
if (CheckValidMainSummary(child->PrincipalChildList())) {
return true;
}
}
} else {
NS_ASSERTION(!summary || !summary->IsMainSummary(),
"Rest of the children are either not summary element "
"or are not the main summary!");
}
}
return false;
}
#endif
void DetailsFrame::DestroyFrom(nsIFrame* aDestructRoot,
PostDestroyData& aPostDestroyData) {
aPostDestroyData.AddAnonymousContent(mDefaultSummary.forget());
nsBlockFrame::DestroyFrom(aDestructRoot, aPostDestroyData);
}
nsresult DetailsFrame::CreateAnonymousContent(
nsTArray<ContentInfo>& aElements) {
auto* details = HTMLDetailsElement::FromNode(GetContent());
if (details->GetFirstSummary()) {
return NS_OK;
}
// The <details> element lacks any direct <summary> child. Create a default
// <summary> element as an anonymous content.
nsNodeInfoManager* nodeInfoManager =
GetContent()->NodeInfo()->NodeInfoManager();
RefPtr<NodeInfo> nodeInfo = nodeInfoManager->GetNodeInfo(
nsGkAtoms::summary, nullptr, kNameSpaceID_XHTML, nsINode::ELEMENT_NODE);
mDefaultSummary = new (nodeInfoManager) HTMLSummaryElement(nodeInfo.forget());
nsAutoString defaultSummaryText;
nsContentUtils::GetMaybeLocalizedString(
nsContentUtils::eFORMS_PROPERTIES, "DefaultSummary",
GetContent()->OwnerDoc(), defaultSummaryText);
RefPtr<nsTextNode> description =
new (nodeInfoManager) nsTextNode(nodeInfoManager);
description->SetText(defaultSummaryText, false);
mDefaultSummary->AppendChildTo(description, false, IgnoreErrors());
aElements.AppendElement(mDefaultSummary);
return NS_OK;
}
void DetailsFrame::AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
uint32_t aFilter) {
if (mDefaultSummary) {
aElements.AppendElement(mDefaultSummary);
}
}
bool DetailsFrame::HasMainSummaryFrame(nsIFrame* aSummaryFrame) {
const ChildListIDs flowLists = {kPrincipalList, kOverflowList};
for (nsIFrame* frag = this; frag; frag = frag->GetNextInFlow()) {
for (const auto& [list, listID] : frag->ChildLists()) {
if (!flowLists.contains(listID)) {
continue;
}
for (nsIFrame* child : list) {
child = nsPlaceholderFrame::GetRealFrameFor(child);
// We skip any non-primary frames such as a list-style-position:inside
// bullet frame for the <details> itself.
if (!child->IsGeneratedContentFrame()) {
return aSummaryFrame == child;
}
}
}
}
return false;
}
} // namespace mozilla
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