зеркало из https://github.com/mozilla/gecko-dev.git
142 строки
4.7 KiB
C++
142 строки
4.7 KiB
C++
/* -*- 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);
|
|
|
|
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 (ChildListIterator lists(frag); !lists.IsDone(); lists.Next()) {
|
|
if (!flowLists.contains(lists.CurrentID())) {
|
|
continue;
|
|
}
|
|
for (nsIFrame* child : lists.CurrentList()) {
|
|
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
|