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
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* vim: set ts=8 sts=4 et sw=4 tw=99: */
/* 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 "xpcprivate.h"
#include "nsContentUtils.h"
#include "BackstagePass.h"
#include "nsDOMClassInfo.h"
#include "nsIPrincipal.h"
#include "mozilla/dom/BindingUtils.h"
NS_INTERFACE_MAP_BEGIN(BackstagePass)
NS_INTERFACE_MAP_ENTRY(nsIGlobalObject)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY(nsIScriptObjectPrincipal)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCScriptable)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(BackstagePass)
NS_IMPL_RELEASE(BackstagePass)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME BackstagePass
#define XPC_MAP_QUOTED_CLASSNAME "BackstagePass"
#define XPC_MAP_WANT_RESOLVE
#define XPC_MAP_WANT_ENUMERATE
#define XPC_MAP_WANT_FINALIZE
#define XPC_MAP_WANT_PRECREATE
#define XPC_MAP_FLAGS nsIXPCScriptable::USE_JSSTUB_FOR_ADDPROPERTY | \
nsIXPCScriptable::USE_JSSTUB_FOR_DELPROPERTY | \
nsIXPCScriptable::USE_JSSTUB_FOR_SETPROPERTY | \
nsIXPCScriptable::DONT_ENUM_QUERY_INTERFACE | \
nsIXPCScriptable::IS_GLOBAL_OBJECT | \
nsIXPCScriptable::DONT_REFLECT_INTERFACE_NAMES
#include "xpc_map_end.h" /* This will #undef the above */
JSObject*
BackstagePass::GetGlobalJSObject()
{
if (mWrapper)
return mWrapper->GetFlatJSObject();
return nullptr;
}
void
BackstagePass::SetGlobalObject(JSObject* global)
{
nsISupports* p = XPCWrappedNative::Get(global);
MOZ_ASSERT(p);
mWrapper = static_cast<XPCWrappedNative*>(p);
}
NS_IMETHODIMP
BackstagePass::Resolve(nsIXPConnectWrappedNative* wrapper,
JSContext * cx, JSObject * objArg,
jsid idArg, bool* resolvedp,
bool* _retval)
{
JS::RootedObject obj(cx, objArg);
JS::RootedId id(cx, idArg);
*_retval = mozilla::dom::SystemGlobalResolve(cx, obj, id, resolvedp);
return *_retval ? NS_OK : NS_ERROR_FAILURE;
}
NS_IMETHODIMP
BackstagePass::Enumerate(nsIXPConnectWrappedNative* wrapper, JSContext* cx,
JSObject* objArg, bool* _retval)
{
JS::RootedObject obj(cx, objArg);
*_retval = mozilla::dom::SystemGlobalEnumerate(cx, obj);
return *_retval ? NS_OK : NS_ERROR_FAILURE;
}
/***************************************************************************/
NS_IMETHODIMP
BackstagePass::GetInterfaces(uint32_t* aCount, nsIID * **aArray)
{
const uint32_t count = 2;
*aCount = count;
nsIID** array;
*aArray = array = static_cast<nsIID**>(moz_xmalloc(count * sizeof(nsIID*)));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
uint32_t index = 0;
nsIID* clone;
#define PUSH_IID(id) \
clone = static_cast<nsIID*>(nsMemory::Clone(&NS_GET_IID( id ), \
sizeof(nsIID))); \
if (!clone) \
goto oom; \
array[index++] = clone;
PUSH_IID(nsIXPCScriptable)
PUSH_IID(nsIScriptObjectPrincipal)
#undef PUSH_IID
return NS_OK;
oom:
while (index)
free(array[--index]);
free(array);
*aArray = nullptr;
return NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP
BackstagePass::GetScriptableHelper(nsIXPCScriptable** retval)
{
nsCOMPtr<nsIXPCScriptable> scriptable = this;
scriptable.forget(retval);
return NS_OK;
}
NS_IMETHODIMP
BackstagePass::GetContractID(char * *aContractID)
{
*aContractID = nullptr;
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
BackstagePass::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "BackstagePass";
*aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
NS_IMETHODIMP
BackstagePass::GetClassID(nsCID * *aClassID)
{
*aClassID = nullptr;
return NS_OK;
}
NS_IMETHODIMP
BackstagePass::GetFlags(uint32_t* aFlags)
{
*aFlags = nsIClassInfo::MAIN_THREAD_ONLY;
return NS_OK;
}
NS_IMETHODIMP
BackstagePass::GetClassIDNoAlloc(nsCID* aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
BackstagePass::Finalize(nsIXPConnectWrappedNative* wrapper, JSFreeOp * fop, JSObject * obj)
{
nsCOMPtr<nsIGlobalObject> bsp(do_QueryWrappedNative(wrapper));
MOZ_ASSERT(bsp);
static_cast<BackstagePass*>(bsp.get())->ForgetGlobalObject();
return NS_OK;
}
NS_IMETHODIMP
BackstagePass::PreCreate(nsISupports* nativeObj, JSContext* cx,
JSObject* globalObj, JSObject** parentObj)
{
// We do the same trick here as for WindowSH. Return the js global
// as parent, so XPConenct can find the right scope and the wrapper
// that already exists.
nsCOMPtr<nsIGlobalObject> global(do_QueryInterface(nativeObj));
MOZ_ASSERT(global, "nativeObj not a global object!");
JSObject* jsglobal = global->GetGlobalJSObject();
if (jsglobal)
*parentObj = jsglobal;
return NS_OK;
}
nsresult
NS_NewBackstagePass(BackstagePass** ret)
{
RefPtr<BackstagePass> bsp = new BackstagePass(
nsContentUtils::GetSystemPrincipal());
bsp.forget(ret);
return NS_OK;
}
|
