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
|
/* -*- 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/. */
/* base class for representation of media lists */
#include "mozilla/dom/MediaList.h"
#include "mozAutoDocUpdate.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/DocumentInlines.h"
#include "mozilla/dom/MediaListBinding.h"
#include "mozilla/ServoBindings.h"
#include "mozilla/ServoStyleSet.h"
#include "mozilla/StyleSheetInlines.h"
namespace mozilla::dom {
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MediaList)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTING_ADDREF(MediaList)
NS_IMPL_CYCLE_COLLECTING_RELEASE(MediaList)
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(MediaList)
JSObject* MediaList::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return MediaList_Binding::Wrap(aCx, this, aGivenProto);
}
void MediaList::SetStyleSheet(StyleSheet* aSheet) {
MOZ_ASSERT(aSheet == mStyleSheet || !aSheet || !mStyleSheet,
"Multiple style sheets competing for one media list");
mStyleSheet = aSheet;
}
nsISupports* MediaList::GetParentObject() const { return mStyleSheet; }
template <typename Func>
void MediaList::DoMediaChange(Func aCallback, ErrorResult& aRv) {
if (IsReadOnly()) {
return;
}
if (mStyleSheet) {
mStyleSheet->WillDirty();
}
aCallback(aRv);
if (aRv.Failed()) {
return;
}
if (mStyleSheet) {
// FIXME(emilio): We should discern between "owned by a rule" (as in @media)
// and "owned by a sheet" (as in <style media>), and then pass something
// meaningful here.
mStyleSheet->RuleChanged(nullptr, StyleRuleChangeKind::Generic);
}
}
already_AddRefed<MediaList> MediaList::Clone() {
RefPtr<MediaList> clone =
new MediaList(Servo_MediaList_DeepClone(mRawList).Consume());
return clone.forget();
}
MediaList::MediaList() : mRawList(Servo_MediaList_Create().Consume()) {}
MediaList::MediaList(const nsACString& aMedia, CallerType aCallerType)
: MediaList() {
SetTextInternal(aMedia, aCallerType);
}
void MediaList::GetText(nsACString& aMediaText) const {
Servo_MediaList_GetText(mRawList, &aMediaText);
}
/* static */
already_AddRefed<MediaList> MediaList::Create(const nsACString& aMedia,
CallerType aCallerType) {
return do_AddRef(new MediaList(aMedia, aCallerType));
}
void MediaList::SetText(const nsACString& aMediaText) {
if (IsReadOnly()) {
return;
}
SetTextInternal(aMediaText, CallerType::NonSystem);
}
void MediaList::SetTextInternal(const nsACString& aMediaText,
CallerType aCallerType) {
Servo_MediaList_SetText(mRawList, &aMediaText, aCallerType);
}
uint32_t MediaList::Length() const {
return Servo_MediaList_GetLength(mRawList);
}
bool MediaList::IsViewportDependent() const {
return Servo_MediaList_IsViewportDependent(mRawList);
}
void MediaList::IndexedGetter(uint32_t aIndex, bool& aFound,
nsACString& aReturn) const {
aFound = Servo_MediaList_GetMediumAt(mRawList, aIndex, &aReturn);
if (!aFound) {
aReturn.SetIsVoid(true);
}
}
void MediaList::Delete(const nsACString& aOldMedium, ErrorResult& aRv) {
MOZ_ASSERT(!IsReadOnly());
if (Servo_MediaList_DeleteMedium(mRawList, &aOldMedium)) {
return;
}
aRv.ThrowNotFoundError("Medium not in list");
}
bool MediaList::Matches(const Document& aDocument) const {
const auto* rawData = aDocument.EnsureStyleSet().RawData();
MOZ_ASSERT(rawData, "The per doc data should be valid!");
return Servo_MediaList_Matches(mRawList, rawData);
}
void MediaList::Append(const nsACString& aNewMedium, ErrorResult& aRv) {
MOZ_ASSERT(!IsReadOnly());
if (aNewMedium.IsEmpty()) {
// XXXbz per spec there should not be an exception here, as far as
// I can tell...
aRv.ThrowNotFoundError("Empty medium");
return;
}
Servo_MediaList_AppendMedium(mRawList, &aNewMedium);
}
void MediaList::SetMediaText(const nsACString& aMediaText) {
DoMediaChange([&](ErrorResult& aRv) { SetText(aMediaText); }, IgnoreErrors());
}
void MediaList::Item(uint32_t aIndex, nsACString& aReturn) {
bool dummy;
IndexedGetter(aIndex, dummy, aReturn);
}
void MediaList::DeleteMedium(const nsACString& aOldMedium, ErrorResult& aRv) {
DoMediaChange([&](ErrorResult& aRv) { Delete(aOldMedium, aRv); }, aRv);
}
void MediaList::AppendMedium(const nsACString& aNewMedium, ErrorResult& aRv) {
DoMediaChange([&](ErrorResult& aRv) { Append(aNewMedium, aRv); }, aRv);
}
MOZ_DEFINE_MALLOC_SIZE_OF(ServoMediaListMallocSizeOf)
MOZ_DEFINE_MALLOC_ENCLOSING_SIZE_OF(ServoMediaListMallocEnclosingSizeOf)
size_t MediaList::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const {
size_t n = 0;
n += Servo_MediaList_SizeOfIncludingThis(ServoMediaListMallocSizeOf,
ServoMediaListMallocEnclosingSizeOf,
mRawList);
return n;
}
bool MediaList::IsReadOnly() const {
return mStyleSheet && mStyleSheet->IsReadOnly();
}
} // namespace mozilla::dom
|
