1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/* -*- 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);
}
}
bool
DetailsFrame::HasMainSummaryFrame(nsIFrame* aSummaryFrame)
{
nsIFrame* firstChild =
nsPlaceholderFrame::GetRealFrameFor(mFrames.FirstChild());
return aSummaryFrame == firstChild;
}
|
