Coverage Report

Created: 2018-09-25 14:53

/work/obj-fuzz/dom/bindings/MediaDevicesBinding.cpp
Line
Count
Source (jump to first uncovered line)
1
/* THIS FILE IS AUTOGENERATED FROM MediaDevices.webidl BY Codegen.py - DO NOT EDIT */
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3
#include "EventHandlerBinding.h"
4
#include "EventTargetBinding.h"
5
#include "MediaDevicesBinding.h"
6
#include "MediaStreamBinding.h"
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#include "MediaTrackSupportedConstraintsBinding.h"
8
#include "Navigator.h"
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#include "WrapperFactory.h"
10
#include "mozilla/OwningNonNull.h"
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#include "mozilla/Preferences.h"
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#include "mozilla/dom/BindingUtils.h"
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#include "mozilla/dom/DOMJSClass.h"
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#include "mozilla/dom/MediaDevices.h"
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#include "mozilla/dom/NonRefcountedDOMObject.h"
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#include "mozilla/dom/Nullable.h"
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#include "mozilla/dom/Promise.h"
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#include "mozilla/dom/ToJSValue.h"
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#include "mozilla/dom/XrayExpandoClass.h"
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#include "nsContentUtils.h"
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namespace mozilla {
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namespace dom {
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namespace binding_detail {}; // Just to make sure it's known as a namespace
26
using namespace mozilla::dom::binding_detail;
27
28
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namespace MediaDevices_Binding {
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31
static_assert(IsRefcounted<NativeType>::value == IsRefcounted<EventTarget_Binding::NativeType>::value,
32
              "Can't inherit from an interface with a different ownership model.");
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34
MOZ_CAN_RUN_SCRIPT static bool
35
get_ondevicechange(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MediaDevices* self, JSJitGetterCallArgs args)
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0
{
37
0
  AUTO_PROFILER_LABEL_FAST("get MediaDevices.ondevicechange", DOM, cx);
38
0
39
0
  RefPtr<EventHandlerNonNull> result(self->GetOndevicechange());
40
0
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
41
0
  if (result) {
42
0
    args.rval().setObjectOrNull(GetCallbackFromCallbackObject(cx, result));
43
0
    if (!MaybeWrapObjectOrNullValue(cx, args.rval())) {
44
0
      return false;
45
0
    }
46
0
    return true;
47
0
  } else {
48
0
    args.rval().setNull();
49
0
    return true;
50
0
  }
51
0
}
52
53
MOZ_CAN_RUN_SCRIPT static bool
54
set_ondevicechange(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MediaDevices* self, JSJitSetterCallArgs args)
55
0
{
56
0
  AUTO_PROFILER_LABEL_FAST("set MediaDevices.ondevicechange", DOM, cx);
57
0
58
0
  RootedCallback<RefPtr<binding_detail::FastEventHandlerNonNull>> arg0(cx);
59
0
  if (args[0].isObject()) {
60
0
    { // scope for tempRoot and tempGlobalRoot if needed
61
0
      arg0 = new binding_detail::FastEventHandlerNonNull(&args[0].toObject(), JS::CurrentGlobalOrNull(cx));
62
0
    }
63
0
  } else {
64
0
    arg0 = nullptr;
65
0
  }
66
0
  self->SetOndevicechange(Constify(arg0));
67
0
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
68
0
69
0
  return true;
70
0
}
71
72
static const JSJitInfo ondevicechange_getterinfo = {
73
  { (JSJitGetterOp)get_ondevicechange },
74
  { prototypes::id::MediaDevices },
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  { PrototypeTraits<prototypes::id::MediaDevices>::Depth },
76
  JSJitInfo::Getter,
77
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
78
  JSVAL_TYPE_UNKNOWN,  /* returnType.  Not relevant for setters. */
79
  false,  /* isInfallible. False in setters. */
80
  false,  /* isMovable.  Not relevant for setters. */
81
  false, /* isEliminatable.  Not relevant for setters. */
82
  false, /* isAlwaysInSlot.  Only relevant for getters. */
83
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
84
  false,  /* isTypedMethod.  Only relevant for methods. */
85
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
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};
87
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
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static_assert(0 < 1, "There is no slot for us");
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static const JSJitInfo ondevicechange_setterinfo = {
90
  { (JSJitGetterOp)set_ondevicechange },
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  { prototypes::id::MediaDevices },
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  { PrototypeTraits<prototypes::id::MediaDevices>::Depth },
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  JSJitInfo::Setter,
94
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
95
  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
96
  false,  /* isInfallible. False in setters. */
97
  false,  /* isMovable.  Not relevant for setters. */
98
  false, /* isEliminatable.  Not relevant for setters. */
99
  false, /* isAlwaysInSlot.  Only relevant for getters. */
100
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
101
  false,  /* isTypedMethod.  Only relevant for methods. */
102
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
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};
104
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
105
static_assert(0 < 1, "There is no slot for us");
106
107
MOZ_CAN_RUN_SCRIPT static bool
108
getSupportedConstraints(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MediaDevices* self, const JSJitMethodCallArgs& args)
109
0
{
110
0
  AUTO_PROFILER_LABEL_FAST("MediaDevices.getSupportedConstraints", DOM, cx);
111
0
112
0
  MediaTrackSupportedConstraints result;
113
0
  self->GetSupportedConstraints(result);
114
0
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
115
0
  if (!result.ToObjectInternal(cx, args.rval())) {
116
0
    return false;
117
0
  }
118
0
  return true;
119
0
}
120
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static const JSJitInfo getSupportedConstraints_methodinfo = {
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  { (JSJitGetterOp)getSupportedConstraints },
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  { prototypes::id::MediaDevices },
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  { PrototypeTraits<prototypes::id::MediaDevices>::Depth },
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  JSJitInfo::Method,
126
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
127
  JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
128
  false,  /* isInfallible. False in setters. */
129
  false,  /* isMovable.  Not relevant for setters. */
130
  false, /* isEliminatable.  Not relevant for setters. */
131
  false, /* isAlwaysInSlot.  Only relevant for getters. */
132
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
133
  false,  /* isTypedMethod.  Only relevant for methods. */
134
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
135
};
136
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
137
static_assert(0 < 1, "There is no slot for us");
138
139
MOZ_CAN_RUN_SCRIPT static bool
140
enumerateDevices(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MediaDevices* self, const JSJitMethodCallArgs& args)
141
0
{
142
0
  AUTO_PROFILER_LABEL_FAST("MediaDevices.enumerateDevices", DOM, cx);
143
0
144
0
  FastErrorResult rv;
145
0
  auto result(StrongOrRawPtr<Promise>(self->EnumerateDevices(nsContentUtils::IsSystemCaller(cx) ? CallerType::System : CallerType::NonSystem, rv)));
146
0
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
147
0
    return false;
148
0
  }
149
0
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
150
0
  if (!ToJSValue(cx, result, args.rval())) {
151
0
    return false;
152
0
  }
153
0
  return true;
154
0
}
155
156
MOZ_CAN_RUN_SCRIPT static bool
157
enumerateDevices_promiseWrapper(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MediaDevices* self, const JSJitMethodCallArgs& args)
158
0
{
159
0
  bool ok = enumerateDevices(cx, obj, self, args);
160
0
  if (ok) {
161
0
    return true;
162
0
  }
163
0
  return ConvertExceptionToPromise(cx, args.rval());
164
0
}
165
166
static const JSJitInfo enumerateDevices_methodinfo = {
167
  { (JSJitGetterOp)enumerateDevices_promiseWrapper },
168
  { prototypes::id::MediaDevices },
169
  { PrototypeTraits<prototypes::id::MediaDevices>::Depth },
170
  JSJitInfo::Method,
171
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
172
  JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
173
  false,  /* isInfallible. False in setters. */
174
  false,  /* isMovable.  Not relevant for setters. */
175
  false, /* isEliminatable.  Not relevant for setters. */
176
  false, /* isAlwaysInSlot.  Only relevant for getters. */
177
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
178
  false,  /* isTypedMethod.  Only relevant for methods. */
179
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
180
};
181
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
182
static_assert(0 < 1, "There is no slot for us");
183
184
MOZ_CAN_RUN_SCRIPT static bool
185
getUserMedia(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MediaDevices* self, const JSJitMethodCallArgs& args)
186
0
{
187
0
  AUTO_PROFILER_LABEL_FAST("MediaDevices.getUserMedia", DOM, cx);
188
0
189
0
  binding_detail::FastMediaStreamConstraints arg0;
190
0
  if (!arg0.Init(cx, (args.hasDefined(0)) ? args[0] : JS::NullHandleValue,  "Argument 1 of MediaDevices.getUserMedia", false)) {
191
0
    return false;
192
0
  }
193
0
  FastErrorResult rv;
194
0
  auto result(StrongOrRawPtr<Promise>(self->GetUserMedia(Constify(arg0), nsContentUtils::IsSystemCaller(cx) ? CallerType::System : CallerType::NonSystem, rv)));
195
0
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
196
0
    return false;
197
0
  }
198
0
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
199
0
  if (!ToJSValue(cx, result, args.rval())) {
200
0
    return false;
201
0
  }
202
0
  return true;
203
0
}
204
205
MOZ_CAN_RUN_SCRIPT static bool
206
getUserMedia_promiseWrapper(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::MediaDevices* self, const JSJitMethodCallArgs& args)
207
0
{
208
0
  bool ok = getUserMedia(cx, obj, self, args);
209
0
  if (ok) {
210
0
    return true;
211
0
  }
212
0
  return ConvertExceptionToPromise(cx, args.rval());
213
0
}
214
215
static const JSJitInfo getUserMedia_methodinfo = {
216
  { (JSJitGetterOp)getUserMedia_promiseWrapper },
217
  { prototypes::id::MediaDevices },
218
  { PrototypeTraits<prototypes::id::MediaDevices>::Depth },
219
  JSJitInfo::Method,
220
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
221
  JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
222
  false,  /* isInfallible. False in setters. */
223
  false,  /* isMovable.  Not relevant for setters. */
224
  false, /* isEliminatable.  Not relevant for setters. */
225
  false, /* isAlwaysInSlot.  Only relevant for getters. */
226
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
227
  false,  /* isTypedMethod.  Only relevant for methods. */
228
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
229
};
230
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
231
static_assert(0 < 1, "There is no slot for us");
232
233
static bool
234
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
235
0
{
236
0
  mozilla::dom::MediaDevices* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MediaDevices>(obj);
237
0
  // We don't want to preserve if we don't have a wrapper, and we
238
0
  // obviously can't preserve if we're not initialized.
239
0
  if (self && self->GetWrapperPreserveColor()) {
240
0
    PreserveWrapper(self);
241
0
  }
242
0
  return true;
243
0
}
244
245
static void
246
_finalize(js::FreeOp* fop, JSObject* obj)
247
0
{
248
0
  mozilla::dom::MediaDevices* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MediaDevices>(obj);
249
0
  if (self) {
250
0
    ClearWrapper(self, self, obj);
251
0
    AddForDeferredFinalization<mozilla::dom::MediaDevices>(self);
252
0
  }
253
0
}
254
255
static size_t
256
_objectMoved(JSObject* obj, JSObject* old)
257
0
{
258
0
  mozilla::dom::MediaDevices* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::MediaDevices>(obj);
259
0
  if (self) {
260
0
    UpdateWrapper(self, self, obj, old);
261
0
  }
262
0
263
0
  return 0;
264
0
}
265
266
// We deliberately use brace-elision to make Visual Studio produce better initalization code.
267
#if defined(__clang__)
268
#pragma clang diagnostic push
269
#pragma clang diagnostic ignored "-Wmissing-braces"
270
#endif
271
static const JSFunctionSpec sMethods_specs[] = {
272
  JS_FNSPEC("getSupportedConstraints", (GenericMethod<NormalThisPolicy, ThrowExceptions>), reinterpret_cast<const JSJitInfo*>(&getSupportedConstraints_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
273
  JS_FNSPEC("enumerateDevices", (GenericMethod<NormalThisPolicy, ConvertExceptionsToPromises>), reinterpret_cast<const JSJitInfo*>(&enumerateDevices_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
274
  JS_FNSPEC("getUserMedia", (GenericMethod<NormalThisPolicy, ConvertExceptionsToPromises>), reinterpret_cast<const JSJitInfo*>(&getUserMedia_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
275
  JS_FS_END
276
};
277
#if defined(__clang__)
278
#pragma clang diagnostic pop
279
#endif
280
281
282
static const Prefable<const JSFunctionSpec> sMethods[] = {
283
  { nullptr, &sMethods_specs[0] },
284
  { nullptr, nullptr }
285
};
286
287
static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
288
    "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
289
static_assert(3 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
290
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
291
292
// We deliberately use brace-elision to make Visual Studio produce better initalization code.
293
#if defined(__clang__)
294
#pragma clang diagnostic push
295
#pragma clang diagnostic ignored "-Wmissing-braces"
296
#endif
297
static const JSPropertySpec sAttributes_specs[] = {
298
  { "ondevicechange", JSPROP_ENUMERATE, GenericGetter<NormalThisPolicy, ThrowExceptions>, &ondevicechange_getterinfo, GenericSetter<NormalThisPolicy>, &ondevicechange_setterinfo },
299
  { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
300
};
301
#if defined(__clang__)
302
#pragma clang diagnostic pop
303
#endif
304
305
// Can't be const because the pref-enabled boolean needs to be writable
306
static PrefableDisablers sAttributes_disablers0 = {
307
  true, false, 0, nullptr
308
};
309
310
static const Prefable<const JSPropertySpec> sAttributes[] = {
311
  { &sAttributes_disablers0, &sAttributes_specs[0] },
312
  { nullptr, nullptr }
313
};
314
315
static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
316
    "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
317
static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
318
    "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
319
320
321
static uint16_t sNativeProperties_sortedPropertyIndices[4];
322
static PropertyInfo sNativeProperties_propertyInfos[4];
323
324
static const NativePropertiesN<2> sNativeProperties = {
325
  false, 0,
326
  false, 0,
327
  true,  0 /* sMethods */,
328
  true,  1 /* sAttributes */,
329
  false, 0,
330
  false, 0,
331
  false, 0,
332
  -1,
333
  4,
334
  sNativeProperties_sortedPropertyIndices,
335
  {
336
    { sMethods, &sNativeProperties_propertyInfos[0] },
337
    { sAttributes, &sNativeProperties_propertyInfos[3] }
338
  }
339
};
340
static_assert(4 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),
341
    "We have a property info count that is oversized");
342
343
static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
344
  {
345
    "Function",
346
    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
347
    &sBoringInterfaceObjectClassClassOps,
348
    JS_NULL_CLASS_SPEC,
349
    JS_NULL_CLASS_EXT,
350
    &sInterfaceObjectClassObjectOps
351
  },
352
  eInterface,
353
  true,
354
  prototypes::id::MediaDevices,
355
  PrototypeTraits<prototypes::id::MediaDevices>::Depth,
356
  sNativePropertyHooks,
357
  "function MediaDevices() {\n    [native code]\n}",
358
  EventTarget_Binding::GetConstructorObject
359
};
360
361
static const DOMIfaceAndProtoJSClass sPrototypeClass = {
362
  {
363
    "MediaDevicesPrototype",
364
    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
365
    JS_NULL_CLASS_OPS,
366
    JS_NULL_CLASS_SPEC,
367
    JS_NULL_CLASS_EXT,
368
    JS_NULL_OBJECT_OPS
369
  },
370
  eInterfacePrototype,
371
  false,
372
  prototypes::id::MediaDevices,
373
  PrototypeTraits<prototypes::id::MediaDevices>::Depth,
374
  sNativePropertyHooks,
375
  "[object MediaDevicesPrototype]",
376
  EventTarget_Binding::GetProtoObject
377
};
378
379
bool
380
ConstructorEnabled(JSContext* aCx, JS::Handle<JSObject*> aObj)
381
0
{
382
0
  return Navigator::HasUserMediaSupport(aCx, aObj);
383
0
}
384
385
static const js::ClassOps sClassOps = {
386
  _addProperty, /* addProperty */
387
  nullptr,               /* delProperty */
388
  nullptr,               /* enumerate */
389
  nullptr, /* newEnumerate */
390
  nullptr, /* resolve */
391
  nullptr, /* mayResolve */
392
  _finalize, /* finalize */
393
  nullptr, /* call */
394
  nullptr,               /* hasInstance */
395
  nullptr,               /* construct */
396
  nullptr, /* trace */
397
};
398
399
static const js::ClassExtension sClassExtension = {
400
  nullptr, /* weakmapKeyDelegateOp */
401
  _objectMoved /* objectMovedOp */
402
};
403
404
static const DOMJSClass sClass = {
405
  { "MediaDevices",
406
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
407
    &sClassOps,
408
    JS_NULL_CLASS_SPEC,
409
    &sClassExtension,
410
    JS_NULL_OBJECT_OPS
411
  },
412
  { prototypes::id::EventTarget, prototypes::id::MediaDevices, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
413
  IsBaseOf<nsISupports, mozilla::dom::MediaDevices >::value,
414
  sNativePropertyHooks,
415
  FindAssociatedGlobalForNative<mozilla::dom::MediaDevices>::Get,
416
  GetProtoObjectHandle,
417
  GetCCParticipant<mozilla::dom::MediaDevices>::Get()
418
};
419
static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
420
              "Must have the right minimal number of reserved slots.");
421
static_assert(1 >= 1,
422
              "Must have enough reserved slots.");
423
424
const JSClass*
425
GetJSClass()
426
0
{
427
0
  return sClass.ToJSClass();
428
0
}
429
430
bool
431
Wrap(JSContext* aCx, mozilla::dom::MediaDevices* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
432
0
{
433
0
  static_assert(!IsBaseOf<NonRefcountedDOMObject, mozilla::dom::MediaDevices>::value,
434
0
                "Shouldn't have wrappercached things that are not refcounted.");
435
0
  MOZ_ASSERT(static_cast<mozilla::dom::MediaDevices*>(aObject) ==
436
0
             reinterpret_cast<mozilla::dom::MediaDevices*>(aObject),
437
0
             "Multiple inheritance for mozilla::dom::MediaDevices is broken.");
438
0
  MOZ_ASSERT(static_cast<mozilla::dom::EventTarget*>(aObject) ==
439
0
             reinterpret_cast<mozilla::dom::EventTarget*>(aObject),
440
0
             "Multiple inheritance for mozilla::dom::EventTarget is broken.");
441
0
  MOZ_ASSERT(ToSupportsIsCorrect(aObject));
442
0
  MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
443
0
  MOZ_ASSERT(!aCache->GetWrapper(),
444
0
             "You should probably not be using Wrap() directly; use "
445
0
             "GetOrCreateDOMReflector instead");
446
0
447
0
  MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
448
0
             "nsISupports must be on our primary inheritance chain");
449
0
450
0
  JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
451
0
  if (!global) {
452
0
    return false;
453
0
  }
454
0
  MOZ_ASSERT(JS_IsGlobalObject(global));
455
0
  MOZ_ASSERT(JS::ObjectIsNotGray(global));
456
0
457
0
  // That might have ended up wrapping us already, due to the wonders
458
0
  // of XBL.  Check for that, and bail out as needed.
459
0
  aReflector.set(aCache->GetWrapper());
460
0
  if (aReflector) {
461
#ifdef DEBUG
462
    AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
463
#endif // DEBUG
464
    return true;
465
0
  }
466
0
467
0
  JSAutoRealm ar(aCx, global);
468
0
  JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
469
0
  if (!canonicalProto) {
470
0
    return false;
471
0
  }
472
0
  JS::Rooted<JSObject*> proto(aCx);
473
0
  if (aGivenProto) {
474
0
    proto = aGivenProto;
475
0
    // Unfortunately, while aGivenProto was in the compartment of aCx
476
0
    // coming in, we changed compartments to that of "parent" so may need
477
0
    // to wrap the proto here.
478
0
    if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
479
0
      if (!JS_WrapObject(aCx, &proto)) {
480
0
        return false;
481
0
      }
482
0
    }
483
0
  } else {
484
0
    proto = canonicalProto;
485
0
  }
486
0
487
0
  BindingJSObjectCreator<mozilla::dom::MediaDevices> creator(aCx);
488
0
  creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
489
0
  if (!aReflector) {
490
0
    return false;
491
0
  }
492
0
493
0
  aCache->SetWrapper(aReflector);
494
0
  creator.InitializationSucceeded();
495
0
496
0
  MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
497
0
             aCache->GetWrapperPreserveColor() == aReflector);
498
0
  // If proto != canonicalProto, we have to preserve our wrapper;
499
0
  // otherwise we won't be able to properly recreate it later, since
500
0
  // we won't know what proto to use.  Note that we don't check
501
0
  // aGivenProto here, since it's entirely possible (and even
502
0
  // somewhat common) to have a non-null aGivenProto which is the
503
0
  // same as canonicalProto.
504
0
  if (proto != canonicalProto) {
505
0
    PreserveWrapper(aObject);
506
0
  }
507
0
508
0
  return true;
509
0
}
510
511
const NativePropertyHooks sNativePropertyHooks[] = { {
512
  nullptr,
513
  nullptr,
514
  nullptr,
515
  { sNativeProperties.Upcast(), nullptr },
516
  prototypes::id::MediaDevices,
517
  constructors::id::MediaDevices,
518
  EventTarget_Binding::sNativePropertyHooks,
519
  &DefaultXrayExpandoObjectClass
520
} };
521
522
void
523
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
524
0
{
525
0
  JS::Handle<JSObject*> parentProto(EventTarget_Binding::GetProtoObjectHandle(aCx));
526
0
  if (!parentProto) {
527
0
    return;
528
0
  }
529
0
530
0
  JS::Handle<JSObject*> constructorProto(EventTarget_Binding::GetConstructorObjectHandle(aCx));
531
0
  if (!constructorProto) {
532
0
    return;
533
0
  }
534
0
535
0
  static bool sIdsInited = false;
536
0
  if (!sIdsInited && NS_IsMainThread()) {
537
0
    if (!InitIds(aCx, sNativeProperties.Upcast())) {
538
0
      return;
539
0
    }
540
0
    sIdsInited = true;
541
0
  }
542
0
543
0
  static bool sPrefCachesInited = false;
544
0
  if (!sPrefCachesInited && NS_IsMainThread()) {
545
0
    sPrefCachesInited = true;
546
0
    Preferences::AddBoolVarCache(&sAttributes[0].disablers->enabled, "media.ondevicechange.enabled");
547
0
  }
548
0
549
0
  JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::MediaDevices);
550
0
  JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::MediaDevices);
551
0
  dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
552
0
                              &sPrototypeClass.mBase, protoCache,
553
0
                              nullptr,
554
0
                              constructorProto, &sInterfaceObjectClass.mBase, 0, nullptr,
555
0
                              interfaceCache,
556
0
                              sNativeProperties.Upcast(),
557
0
                              nullptr,
558
0
                              "MediaDevices", aDefineOnGlobal,
559
0
                              nullptr,
560
0
                              false);
561
0
}
562
563
JSObject*
564
GetConstructorObject(JSContext* aCx)
565
0
{
566
0
  return GetConstructorObjectHandle(aCx);
567
0
}
568
569
} // namespace MediaDevices_Binding
570
571
572
573
} // namespace dom
574
} // namespace mozilla