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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
/* -*- 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 "mozilla/dom/SVGStyleElement.h"
#include "mozilla/RefPtr.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/Element.h"
#include "mozilla/dom/FetchPriority.h"
#include "mozilla/dom/ReferrerInfo.h"
#include "mozilla/dom/SVGStyleElementBinding.h"
#include "nsCOMPtr.h"
#include "nsContentUtils.h"
NS_IMPL_NS_NEW_SVG_ELEMENT(Style)
namespace mozilla::dom {
JSObject* SVGStyleElement::WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return SVGStyleElement_Binding::Wrap(aCx, this, aGivenProto);
}
//----------------------------------------------------------------------
// nsISupports methods
NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED(SVGStyleElement,
SVGStyleElementBase,
nsIMutationObserver)
NS_IMPL_CYCLE_COLLECTION_CLASS(SVGStyleElement)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(SVGStyleElement,
SVGStyleElementBase)
tmp->LinkStyle::Traverse(cb);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(SVGStyleElement,
SVGStyleElementBase)
tmp->LinkStyle::Unlink();
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
//----------------------------------------------------------------------
// Implementation
SVGStyleElement::SVGStyleElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
: SVGStyleElementBase(std::move(aNodeInfo)) {
AddMutationObserver(this);
SetEnabledCallbacks(kCharacterDataChanged | kContentAppended |
kContentInserted | kContentRemoved);
}
//----------------------------------------------------------------------
// nsINode methods
NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGStyleElement)
//----------------------------------------------------------------------
// nsIContent methods
nsresult SVGStyleElement::BindToTree(BindContext& aContext, nsINode& aParent) {
nsresult rv = SVGStyleElementBase::BindToTree(aContext, aParent);
NS_ENSURE_SUCCESS(rv, rv);
LinkStyle::BindToTree();
return rv;
}
void SVGStyleElement::UnbindFromTree(bool aNullParent) {
nsCOMPtr<Document> oldDoc = GetUncomposedDoc();
ShadowRoot* oldShadow = GetContainingShadow();
SVGStyleElementBase::UnbindFromTree(aNullParent);
Unused << UpdateStyleSheetInternal(oldDoc, oldShadow);
}
void SVGStyleElement::AfterSetAttr(int32_t aNameSpaceID, nsAtom* aName,
const nsAttrValue* aValue,
const nsAttrValue* aOldValue,
nsIPrincipal* aMaybeScriptedPrincipal,
bool aNotify) {
if (aNameSpaceID == kNameSpaceID_None) {
if (aName == nsGkAtoms::title || aName == nsGkAtoms::media ||
aName == nsGkAtoms::type) {
Unused << UpdateStyleSheetInternal(nullptr, nullptr, ForceUpdate::Yes);
}
}
return SVGStyleElementBase::AfterSetAttr(
aNameSpaceID, aName, aValue, aOldValue, aMaybeScriptedPrincipal, aNotify);
}
bool SVGStyleElement::ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
const nsAString& aValue,
nsIPrincipal* aMaybeScriptedPrincipal,
nsAttrValue& aResult) {
if (aNamespaceID == kNameSpaceID_None &&
aAttribute == nsGkAtoms::crossorigin) {
ParseCORSValue(aValue, aResult);
return true;
}
return SVGStyleElementBase::ParseAttribute(aNamespaceID, aAttribute, aValue,
aMaybeScriptedPrincipal, aResult);
}
//----------------------------------------------------------------------
// nsIMutationObserver methods
void SVGStyleElement::CharacterDataChanged(nsIContent* aContent,
const CharacterDataChangeInfo&) {
ContentChanged(aContent);
}
void SVGStyleElement::ContentAppended(nsIContent* aFirstNewContent) {
ContentChanged(aFirstNewContent->GetParent());
}
void SVGStyleElement::ContentInserted(nsIContent* aChild) {
ContentChanged(aChild);
}
void SVGStyleElement::ContentRemoved(nsIContent* aChild,
nsIContent* aPreviousSibling) {
ContentChanged(aChild);
}
void SVGStyleElement::ContentChanged(nsIContent* aContent) {
if (nsContentUtils::IsInSameAnonymousTree(this, aContent)) {
Unused << UpdateStyleSheetInternal(nullptr, nullptr);
}
}
//----------------------------------------------------------------------
void SVGStyleElement::GetMedia(nsAString& aMedia) {
GetAttr(nsGkAtoms::media, aMedia);
}
void SVGStyleElement::SetMedia(const nsAString& aMedia, ErrorResult& rv) {
SetAttr(nsGkAtoms::media, aMedia, rv);
}
void SVGStyleElement::GetType(nsAString& aType) {
GetAttr(nsGkAtoms::type, aType);
}
void SVGStyleElement::SetType(const nsAString& aType, ErrorResult& rv) {
SetAttr(nsGkAtoms::type, aType, rv);
}
void SVGStyleElement::GetTitle(nsAString& aTitle) {
GetAttr(nsGkAtoms::title, aTitle);
}
void SVGStyleElement::SetTitle(const nsAString& aTitle, ErrorResult& rv) {
SetAttr(nsGkAtoms::title, aTitle, rv);
}
bool SVGStyleElement::Disabled() const {
StyleSheet* ss = GetSheet();
return ss && ss->Disabled();
}
void SVGStyleElement::SetDisabled(bool aDisabled) {
if (StyleSheet* ss = GetSheet()) {
ss->SetDisabled(aDisabled);
}
}
//----------------------------------------------------------------------
// nsStyleLinkElement methods
Maybe<LinkStyle::SheetInfo> SVGStyleElement::GetStyleSheetInfo() {
if (!IsCSSMimeTypeAttributeForStyleElement(*this)) {
return Nothing();
}
nsAutoString title;
nsAutoString media;
GetTitleAndMediaForElement(*this, title, media);
return Some(SheetInfo{
*OwnerDoc(),
this,
nullptr,
// FIXME(bug 1459822): Why doesn't this need a principal, but
// HTMLStyleElement does?
nullptr,
// FIXME(bug 1459822): Why does this need a crossorigin attribute, but
// HTMLStyleElement doesn't?
MakeAndAddRef<ReferrerInfo>(*this),
AttrValueToCORSMode(GetParsedAttr(nsGkAtoms::crossorigin)),
title,
media,
/* integrity = */ u""_ns,
/* nsStyleUtil::CSPAllowsInlineStyle takes care of nonce checking for
inline styles. Bug 1607011 */
/* nonce = */ u""_ns,
HasAlternateRel::No,
IsInline::Yes,
IsExplicitlyEnabled::No,
FetchPriority::Auto,
});
}
} // namespace mozilla::dom
|
