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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/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(nsIPresShell* aPresShell, nsStyleContext* aContext)
{
return new (aPresShell) DetailsFrame(aContext);
}
DetailsFrame::DetailsFrame(nsStyleContext* aContext)
: nsBlockFrame(aContext)
{
}
DetailsFrame::~DetailsFrame()
{
}
nsIAtom*
DetailsFrame::GetType() const
{
return nsGkAtoms::detailsFrame;
}
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) {
HTMLSummaryElement* summary =
HTMLSummaryElement::FromContent(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)
{
nsContentUtils::DestroyAnonymousContent(&mDefaultSummary);
nsBlockFrame::DestroyFrom(aDestructRoot);
}
nsresult
DetailsFrame::CreateAnonymousContent(nsTArray<ContentInfo>& aElements)
{
auto* details = HTMLDetailsElement::FromContent(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();
already_AddRefed<NodeInfo> nodeInfo =
nodeInfoManager->GetNodeInfo(nsGkAtoms::summary, nullptr, kNameSpaceID_XHTML,
nsIDOMNode::ELEMENT_NODE);
mDefaultSummary = new HTMLSummaryElement(nodeInfo);
nsXPIDLString defaultSummaryText;
nsContentUtils::GetLocalizedString(nsContentUtils::eFORMS_PROPERTIES,
"DefaultSummary", defaultSummaryText);
RefPtr<nsTextNode> description = new nsTextNode(nodeInfoManager);
description->SetText(defaultSummaryText, false);
mDefaultSummary->AppendChildTo(description, false);
aElements.AppendElement(mDefaultSummary);
return NS_OK;
}
void
DetailsFrame::AppendAnonymousContentTo(nsTArray<nsIContent*>& aElements,
uint32_t aFilter)
{
if (mDefaultSummary) {
aElements.AppendElement(mDefaultSummary);
}
}
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