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
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* 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/JSWindowActorBinding.h"
#include "mozilla/dom/JSWindowActorChild.h"
#include "mozilla/dom/ContentChild.h"
#include "mozilla/dom/WindowGlobalChild.h"
#include "mozilla/dom/WindowGlobalParent.h"
#include "mozilla/dom/WindowProxyHolder.h"
#include "mozilla/dom/MessageManagerBinding.h"
#include "mozilla/dom/BrowsingContext.h"
#include "nsGlobalWindowInner.h"
namespace mozilla::dom {
JSWindowActorChild::~JSWindowActorChild() { MOZ_ASSERT(!mManager); }
JSObject* JSWindowActorChild::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return JSWindowActorChild_Binding::Wrap(aCx, this, aGivenProto);
}
WindowGlobalChild* JSWindowActorChild::GetManager() const { return mManager; }
WindowContext* JSWindowActorChild::GetWindowContext() const {
return mManager ? mManager->WindowContext() : nullptr;
}
void JSWindowActorChild::Init(const nsACString& aName,
WindowGlobalChild* aManager) {
MOZ_ASSERT(!mManager, "Cannot Init() a JSWindowActorChild twice!");
SetName(aName);
mManager = aManager;
InvokeCallback(CallbackFunction::ActorCreated);
}
#ifdef DEBUG
# define DEBUG_WARN_MESSAGE_UNSENT(aMeta, aWarning) \
NS_DebugBreak( \
NS_DEBUG_WARNING, \
nsPrintfCString( \
"JSWindowActorChild::SendRawMessage (%s, %s) not sent: %s", \
(aMeta).actorName().get(), \
NS_LossyConvertUTF16toASCII((aMeta).messageName()).get(), \
(aWarning)) \
.get(), \
nullptr, __FILE__, __LINE__)
#else
# define DEBUG_WARN_MESSAGE_UNSENT(aMeta, aWarning)
#endif
void JSWindowActorChild::SendRawMessage(
const JSActorMessageMeta& aMeta, Maybe<ipc::StructuredCloneData>&& aData,
Maybe<ipc::StructuredCloneData>&& aStack, ErrorResult& aRv) {
if (!CanSend() || !mManager || !mManager->CanSend()) {
DEBUG_WARN_MESSAGE_UNSENT(
aMeta, "!CanSend() || !mManager || !mManager->CanSend()");
aRv.ThrowInvalidStateError("JSWindowActorChild cannot send at the moment");
return;
}
if (mManager->IsInProcess()) {
SendRawMessageInProcess(
aMeta, std::move(aData), std::move(aStack),
[manager{mManager}]() { return manager->GetParentActor(); });
return;
}
// Cross-process case - send data over WindowGlobalChild to other side.
Maybe<ClonedMessageData> msgData;
if (aData) {
msgData.emplace();
if (!aData->BuildClonedMessageData(*msgData)) {
DEBUG_WARN_MESSAGE_UNSENT(aMeta,
"!aData->BuildClonedMessageData(*msgData)");
aRv.ThrowDataCloneError(
nsPrintfCString("JSWindowActorChild serialization error: cannot "
"clone, in actor '%s'",
PromiseFlatCString(aMeta.actorName()).get()));
return;
}
}
Maybe<ClonedMessageData> stackData;
if (aStack) {
stackData.emplace();
if (!aStack->BuildClonedMessageData(*stackData)) {
stackData.reset();
}
}
if (!mManager->SendRawMessage(aMeta, msgData, stackData)) {
DEBUG_WARN_MESSAGE_UNSENT(
aMeta, "!mManager->SendRawMessage(aMeta, msgData, stackData)");
aRv.ThrowOperationError(
nsPrintfCString("JSWindowActorChild send error in actor '%s'",
PromiseFlatCString(aMeta.actorName()).get()));
return;
}
}
Document* JSWindowActorChild::GetDocument(ErrorResult& aRv) {
if (!mManager) {
ThrowStateErrorForGetter("document", aRv);
return nullptr;
}
nsGlobalWindowInner* window = mManager->GetWindowGlobal();
return window ? window->GetDocument() : nullptr;
}
BrowsingContext* JSWindowActorChild::GetBrowsingContext(ErrorResult& aRv) {
if (!mManager) {
ThrowStateErrorForGetter("browsingContext", aRv);
return nullptr;
}
return mManager->BrowsingContext();
}
nsIDocShell* JSWindowActorChild::GetDocShell(ErrorResult& aRv) {
if (!mManager) {
ThrowStateErrorForGetter("docShell", aRv);
return nullptr;
}
return mManager->BrowsingContext()->GetDocShell();
}
Nullable<WindowProxyHolder> JSWindowActorChild::GetContentWindow(
ErrorResult& aRv) {
if (!mManager) {
ThrowStateErrorForGetter("contentWindow", aRv);
return nullptr;
}
if (nsGlobalWindowInner* window = mManager->GetWindowGlobal()) {
if (window->IsCurrentInnerWindow()) {
return WindowProxyHolder(window->GetBrowsingContext());
}
}
return nullptr;
}
void JSWindowActorChild::ClearManager() { mManager = nullptr; }
NS_IMPL_CYCLE_COLLECTION_INHERITED(JSWindowActorChild, JSActor, mManager)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(JSWindowActorChild)
NS_INTERFACE_MAP_END_INHERITING(JSActor)
NS_IMPL_ADDREF_INHERITED(JSWindowActorChild, JSActor)
NS_IMPL_RELEASE_INHERITED(JSWindowActorChild, JSActor)
} // namespace mozilla::dom
|
