/* -*- 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); } }