Line data Source code
1 : /* THIS FILE IS AUTOGENERATED FROM CustomElementRegistry.webidl BY Codegen.py - DO NOT EDIT */
2 :
3 : #include "AtomList.h"
4 : #include "CustomElementRegistry.h"
5 : #include "CustomElementRegistryBinding.h"
6 : #include "FunctionBinding.h"
7 : #include "WrapperFactory.h"
8 : #include "mozilla/OwningNonNull.h"
9 : #include "mozilla/dom/BindingUtils.h"
10 : #include "mozilla/dom/CustomElementRegistry.h"
11 : #include "mozilla/dom/DOMJSClass.h"
12 : #include "mozilla/dom/NonRefcountedDOMObject.h"
13 : #include "mozilla/dom/Promise.h"
14 : #include "mozilla/dom/ScriptSettings.h"
15 : #include "mozilla/dom/SimpleGlobalObject.h"
16 : #include "mozilla/dom/ToJSValue.h"
17 : #include "mozilla/dom/XrayExpandoClass.h"
18 :
19 : namespace mozilla {
20 : namespace dom {
21 :
22 :
23 0 : ElementDefinitionOptions::ElementDefinitionOptions()
24 : {
25 : // Safe to pass a null context if we pass a null value
26 0 : Init(nullptr, JS::NullHandleValue);
27 0 : }
28 :
29 :
30 :
31 : bool
32 0 : ElementDefinitionOptions::InitIds(JSContext* cx, ElementDefinitionOptionsAtoms* atomsCache)
33 : {
34 0 : MOZ_ASSERT(!*reinterpret_cast<jsid**>(atomsCache));
35 :
36 : // Initialize these in reverse order so that any failure leaves the first one
37 : // uninitialized.
38 0 : if (!atomsCache->extends_id.init(cx, "extends")) {
39 0 : return false;
40 : }
41 0 : return true;
42 : }
43 :
44 : bool
45 0 : ElementDefinitionOptions::Init(JSContext* cx, JS::Handle<JS::Value> val, const char* sourceDescription, bool passedToJSImpl)
46 : {
47 : // Passing a null JSContext is OK only if we're initing from null,
48 : // Since in that case we will not have to do any property gets
49 : // Also evaluate isNullOrUndefined in order to avoid false-positive
50 : // checkers by static analysis tools
51 0 : MOZ_ASSERT_IF(!cx, val.isNull() && val.isNullOrUndefined());
52 0 : ElementDefinitionOptionsAtoms* atomsCache = nullptr;
53 0 : if (cx) {
54 0 : atomsCache = GetAtomCache<ElementDefinitionOptionsAtoms>(cx);
55 0 : if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
56 0 : return false;
57 : }
58 : }
59 :
60 0 : if (!IsConvertibleToDictionary(val)) {
61 0 : return ThrowErrorMessage(cx, MSG_NOT_DICTIONARY, sourceDescription);
62 : }
63 :
64 0 : bool isNull = val.isNullOrUndefined();
65 : // We only need these if !isNull, in which case we have |cx|.
66 0 : Maybe<JS::Rooted<JSObject *> > object;
67 0 : Maybe<JS::Rooted<JS::Value> > temp;
68 0 : if (!isNull) {
69 0 : MOZ_ASSERT(cx);
70 0 : object.emplace(cx, &val.toObject());
71 0 : temp.emplace(cx);
72 : }
73 0 : if (!isNull) {
74 0 : if (!JS_GetPropertyById(cx, *object, atomsCache->extends_id, temp.ptr())) {
75 0 : return false;
76 : }
77 : }
78 0 : if (!isNull && !temp->isUndefined()) {
79 0 : mExtends.Construct();
80 0 : if (!ConvertJSValueToString(cx, temp.ref(), eStringify, eStringify, (mExtends.Value()))) {
81 0 : return false;
82 : }
83 0 : mIsAnyMemberPresent = true;
84 : }
85 0 : return true;
86 : }
87 :
88 : bool
89 0 : ElementDefinitionOptions::Init(const nsAString& aJSON)
90 : {
91 0 : AutoJSAPI jsapi;
92 0 : JSObject* cleanGlobal = SimpleGlobalObject::Create(SimpleGlobalObject::GlobalType::BindingDetail);
93 0 : if (!cleanGlobal) {
94 0 : return false;
95 : }
96 0 : if (!jsapi.Init(cleanGlobal)) {
97 0 : return false;
98 : }
99 0 : JSContext* cx = jsapi.cx();
100 0 : JS::Rooted<JS::Value> json(cx);
101 0 : bool ok = ParseJSON(cx, aJSON, &json);
102 0 : NS_ENSURE_TRUE(ok, false);
103 0 : return Init(cx, json);
104 : }
105 :
106 : bool
107 0 : ElementDefinitionOptions::ToObjectInternal(JSContext* cx, JS::MutableHandle<JS::Value> rval) const
108 : {
109 0 : ElementDefinitionOptionsAtoms* atomsCache = GetAtomCache<ElementDefinitionOptionsAtoms>(cx);
110 0 : if (!*reinterpret_cast<jsid**>(atomsCache) && !InitIds(cx, atomsCache)) {
111 0 : return false;
112 : }
113 :
114 0 : JS::Rooted<JSObject*> obj(cx, JS_NewPlainObject(cx));
115 0 : if (!obj) {
116 0 : return false;
117 : }
118 0 : rval.set(JS::ObjectValue(*obj));
119 :
120 0 : if (mExtends.WasPassed()) {
121 : do {
122 : // block for our 'break' successCode and scope for 'temp' and 'currentValue'
123 0 : JS::Rooted<JS::Value> temp(cx);
124 0 : nsString const & currentValue = mExtends.InternalValue();
125 0 : if (!xpc::NonVoidStringToJsval(cx, currentValue, &temp)) {
126 0 : return false;
127 : }
128 0 : if (!JS_DefinePropertyById(cx, obj, atomsCache->extends_id, temp, JSPROP_ENUMERATE)) {
129 0 : return false;
130 : }
131 0 : break;
132 : } while(0);
133 : }
134 :
135 0 : return true;
136 : }
137 :
138 : bool
139 0 : ElementDefinitionOptions::ToJSON(nsAString& aJSON) const
140 : {
141 0 : AutoJSAPI jsapi;
142 0 : jsapi.Init();
143 0 : JSContext *cx = jsapi.cx();
144 : // It's safe to use UnprivilegedJunkScopeOrWorkerGlobal here
145 : // because we'll only be creating objects, in ways that have no
146 : // side-effects, followed by a call to JS::ToJSONMaybeSafely,
147 : // which likewise guarantees no side-effects for the sorts of
148 : // things we will pass it.
149 0 : JSAutoCompartment ac(cx, binding_detail::UnprivilegedJunkScopeOrWorkerGlobal());
150 0 : JS::Rooted<JS::Value> val(cx);
151 0 : if (!ToObjectInternal(cx, &val)) {
152 0 : return false;
153 : }
154 0 : JS::Rooted<JSObject*> obj(cx, &val.toObject());
155 0 : return StringifyToJSON(cx, obj, aJSON);
156 : }
157 :
158 : void
159 0 : ElementDefinitionOptions::TraceDictionary(JSTracer* trc)
160 : {
161 0 : }
162 :
163 : ElementDefinitionOptions&
164 0 : ElementDefinitionOptions::operator=(const ElementDefinitionOptions& aOther)
165 : {
166 0 : mExtends.Reset();
167 0 : if (aOther.mExtends.WasPassed()) {
168 0 : mExtends.Construct(aOther.mExtends.Value());
169 : }
170 0 : return *this;
171 : }
172 :
173 : namespace binding_detail {
174 : } // namespace binding_detail
175 :
176 :
177 : namespace CustomElementRegistryBinding {
178 :
179 : static bool
180 0 : define(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::CustomElementRegistry* self, const JSJitMethodCallArgs& args)
181 : {
182 0 : if (MOZ_UNLIKELY(args.length() < 2)) {
183 0 : return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CustomElementRegistry.define");
184 : }
185 0 : binding_detail::FakeString arg0;
186 0 : if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
187 0 : return false;
188 : }
189 0 : RootedCallback<OwningNonNull<binding_detail::FastFunction>> arg1(cx);
190 0 : if (args[1].isObject()) {
191 0 : if (JS::IsCallable(&args[1].toObject())) {
192 : { // scope for tempRoot
193 0 : JS::Rooted<JSObject*> tempRoot(cx, &args[1].toObject());
194 0 : arg1 = new binding_detail::FastFunction(tempRoot);
195 : }
196 : } else {
197 0 : ThrowErrorMessage(cx, MSG_NOT_CALLABLE, "Argument 2 of CustomElementRegistry.define");
198 0 : return false;
199 : }
200 : } else {
201 0 : ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Argument 2 of CustomElementRegistry.define");
202 0 : return false;
203 : }
204 0 : binding_detail::FastElementDefinitionOptions arg2;
205 0 : if (!arg2.Init(cx, (args.hasDefined(2)) ? args[2] : JS::NullHandleValue, "Argument 3 of CustomElementRegistry.define", false)) {
206 0 : return false;
207 : }
208 0 : CustomElementReactionsStack* reactionsStack = GetCustomElementReactionsStack(obj);
209 0 : Maybe<AutoCEReaction> ceReaction;
210 0 : if (reactionsStack) {
211 0 : ceReaction.emplace(reactionsStack);
212 : }
213 0 : binding_detail::FastErrorResult rv;
214 0 : self->Define(NonNullHelper(Constify(arg0)), NonNullHelper(arg1), Constify(arg2), rv);
215 0 : if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
216 0 : return false;
217 : }
218 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
219 0 : args.rval().setUndefined();
220 0 : return true;
221 : }
222 :
223 : static const JSJitInfo define_methodinfo = {
224 : { (JSJitGetterOp)define },
225 : { prototypes::id::CustomElementRegistry },
226 : { PrototypeTraits<prototypes::id::CustomElementRegistry>::Depth },
227 : JSJitInfo::Method,
228 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
229 : JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
230 : false, /* isInfallible. False in setters. */
231 : false, /* isMovable. Not relevant for setters. */
232 : false, /* isEliminatable. Not relevant for setters. */
233 : false, /* isAlwaysInSlot. Only relevant for getters. */
234 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
235 : false, /* isTypedMethod. Only relevant for methods. */
236 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
237 : };
238 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
239 : static_assert(0 < 1, "There is no slot for us");
240 :
241 : static bool
242 0 : get(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::CustomElementRegistry* self, const JSJitMethodCallArgs& args)
243 : {
244 0 : if (MOZ_UNLIKELY(args.length() < 1)) {
245 0 : return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CustomElementRegistry.get");
246 : }
247 0 : binding_detail::FakeString arg0;
248 0 : if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
249 0 : return false;
250 : }
251 0 : JS::Rooted<JS::Value> result(cx);
252 0 : self->Get(cx, NonNullHelper(Constify(arg0)), &result);
253 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
254 0 : JS::ExposeValueToActiveJS(result);
255 0 : args.rval().set(result);
256 0 : if (!MaybeWrapValue(cx, args.rval())) {
257 0 : return false;
258 : }
259 0 : return true;
260 : }
261 :
262 : static const JSJitInfo get_methodinfo = {
263 : { (JSJitGetterOp)get },
264 : { prototypes::id::CustomElementRegistry },
265 : { PrototypeTraits<prototypes::id::CustomElementRegistry>::Depth },
266 : JSJitInfo::Method,
267 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
268 : JSVAL_TYPE_UNKNOWN, /* returnType. Not relevant for setters. */
269 : false, /* isInfallible. False in setters. */
270 : false, /* isMovable. Not relevant for setters. */
271 : false, /* isEliminatable. Not relevant for setters. */
272 : false, /* isAlwaysInSlot. Only relevant for getters. */
273 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
274 : false, /* isTypedMethod. Only relevant for methods. */
275 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
276 : };
277 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
278 : static_assert(0 < 1, "There is no slot for us");
279 :
280 : static bool
281 0 : whenDefined(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::CustomElementRegistry* self, const JSJitMethodCallArgs& args)
282 : {
283 0 : if (MOZ_UNLIKELY(args.length() < 1)) {
284 0 : return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "CustomElementRegistry.whenDefined");
285 : }
286 0 : binding_detail::FakeString arg0;
287 0 : if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
288 0 : return false;
289 : }
290 0 : binding_detail::FastErrorResult rv;
291 0 : auto result(StrongOrRawPtr<Promise>(self->WhenDefined(NonNullHelper(Constify(arg0)), rv)));
292 0 : if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
293 0 : return false;
294 : }
295 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
296 0 : if (!ToJSValue(cx, result, args.rval())) {
297 0 : return false;
298 : }
299 0 : return true;
300 : }
301 :
302 : static bool
303 0 : whenDefined_promiseWrapper(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::CustomElementRegistry* self, const JSJitMethodCallArgs& args)
304 : {
305 : // Make sure to save the callee before someone maybe messes
306 : // with rval().
307 0 : JS::Rooted<JSObject*> callee(cx, &args.callee());
308 0 : bool ok = whenDefined(cx, obj, self, args);
309 0 : if (ok) {
310 0 : return true;
311 : }
312 0 : return ConvertExceptionToPromise(cx, xpc::XrayAwareCalleeGlobal(callee),
313 0 : args.rval());
314 : }
315 :
316 : static const JSJitInfo whenDefined_methodinfo = {
317 : { (JSJitGetterOp)whenDefined_promiseWrapper },
318 : { prototypes::id::CustomElementRegistry },
319 : { PrototypeTraits<prototypes::id::CustomElementRegistry>::Depth },
320 : JSJitInfo::Method,
321 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
322 : JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
323 : false, /* isInfallible. False in setters. */
324 : false, /* isMovable. Not relevant for setters. */
325 : false, /* isEliminatable. Not relevant for setters. */
326 : false, /* isAlwaysInSlot. Only relevant for getters. */
327 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
328 : false, /* isTypedMethod. Only relevant for methods. */
329 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
330 : };
331 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
332 : static_assert(0 < 1, "There is no slot for us");
333 :
334 : static bool
335 0 : _addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
336 : {
337 0 : mozilla::dom::CustomElementRegistry* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::CustomElementRegistry>(obj);
338 : // We don't want to preserve if we don't have a wrapper, and we
339 : // obviously can't preserve if we're not initialized.
340 0 : if (self && self->GetWrapperPreserveColor()) {
341 0 : PreserveWrapper(self);
342 : }
343 0 : return true;
344 : }
345 :
346 : static void
347 0 : _finalize(js::FreeOp* fop, JSObject* obj)
348 : {
349 0 : mozilla::dom::CustomElementRegistry* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::CustomElementRegistry>(obj);
350 0 : if (self) {
351 0 : ClearWrapper(self, self, obj);
352 0 : AddForDeferredFinalization<mozilla::dom::CustomElementRegistry>(self);
353 : }
354 0 : }
355 :
356 : static void
357 0 : _objectMoved(JSObject* obj, const JSObject* old)
358 : {
359 0 : mozilla::dom::CustomElementRegistry* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::CustomElementRegistry>(obj);
360 0 : if (self) {
361 0 : UpdateWrapper(self, self, obj, old);
362 : }
363 0 : }
364 :
365 : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
366 : #if defined(__clang__)
367 : #pragma clang diagnostic push
368 : #pragma clang diagnostic ignored "-Wmissing-braces"
369 : #endif
370 : static const JSFunctionSpec sMethods_specs[] = {
371 : JS_FNSPEC("define", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&define_methodinfo), 2, JSPROP_ENUMERATE, nullptr),
372 : JS_FNSPEC("get", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&get_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
373 : JS_FNSPEC("whenDefined", GenericPromiseReturningBindingMethod, reinterpret_cast<const JSJitInfo*>(&whenDefined_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
374 : JS_FS_END
375 : };
376 : #if defined(__clang__)
377 : #pragma clang diagnostic pop
378 : #endif
379 :
380 :
381 : // Can't be const because the pref-enabled boolean needs to be writable
382 : static Prefable<const JSFunctionSpec> sMethods[] = {
383 : { nullptr, &sMethods_specs[0] },
384 : { nullptr, nullptr }
385 : };
386 :
387 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
388 : "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
389 : static_assert(3 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
390 : "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
391 :
392 :
393 : static uint16_t sNativeProperties_sortedPropertyIndices[3];
394 : static PropertyInfo sNativeProperties_propertyInfos[3];
395 :
396 : static const NativePropertiesN<1> sNativeProperties = {
397 : false, 0,
398 : false, 0,
399 : true, 0 /* sMethods */,
400 : false, 0,
401 : false, 0,
402 : false, 0,
403 : false, 0,
404 : -1,
405 : 3,
406 : sNativeProperties_sortedPropertyIndices,
407 : {
408 : { sMethods, &sNativeProperties_propertyInfos[0] }
409 : }
410 : };
411 : static_assert(3 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),
412 : "We have a property info count that is oversized");
413 :
414 : static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
415 : {
416 : "Function",
417 : JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
418 : &sBoringInterfaceObjectClassClassOps,
419 : JS_NULL_CLASS_SPEC,
420 : JS_NULL_CLASS_EXT,
421 : &sInterfaceObjectClassObjectOps
422 : },
423 : eInterface,
424 : true,
425 : prototypes::id::CustomElementRegistry,
426 : PrototypeTraits<prototypes::id::CustomElementRegistry>::Depth,
427 : sNativePropertyHooks,
428 : "function CustomElementRegistry() {\n [native code]\n}",
429 : JS::GetRealmFunctionPrototype
430 : };
431 :
432 : static const DOMIfaceAndProtoJSClass sPrototypeClass = {
433 : {
434 : "CustomElementRegistryPrototype",
435 : JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
436 : JS_NULL_CLASS_OPS,
437 : JS_NULL_CLASS_SPEC,
438 : JS_NULL_CLASS_EXT,
439 : JS_NULL_OBJECT_OPS
440 : },
441 : eInterfacePrototype,
442 : false,
443 : prototypes::id::CustomElementRegistry,
444 : PrototypeTraits<prototypes::id::CustomElementRegistry>::Depth,
445 : sNativePropertyHooks,
446 : "[object CustomElementRegistryPrototype]",
447 : JS::GetRealmObjectPrototype
448 : };
449 :
450 : bool
451 0 : ConstructorEnabled(JSContext* aCx, JS::Handle<JSObject*> aObj)
452 : {
453 0 : return CustomElementRegistry::IsCustomElementEnabled(aCx, aObj);
454 : }
455 :
456 : JSObject*
457 0 : DefineDOMInterface(JSContext* aCx, JS::Handle<JSObject*> aGlobal, JS::Handle<jsid> id, bool aDefineOnGlobal)
458 : {
459 0 : return GetConstructorObjectHandle(aCx, aDefineOnGlobal);
460 : }
461 :
462 : static const js::ClassOps sClassOps = {
463 : _addProperty, /* addProperty */
464 : nullptr, /* delProperty */
465 : nullptr, /* getProperty */
466 : nullptr, /* setProperty */
467 : nullptr, /* enumerate */
468 : nullptr, /* newEnumerate */
469 : nullptr, /* resolve */
470 : nullptr, /* mayResolve */
471 : _finalize, /* finalize */
472 : nullptr, /* call */
473 : nullptr, /* hasInstance */
474 : nullptr, /* construct */
475 : nullptr, /* trace */
476 : };
477 :
478 : static const js::ClassExtension sClassExtension = {
479 : nullptr, /* weakmapKeyDelegateOp */
480 : _objectMoved /* objectMovedOp */
481 : };
482 :
483 : static const DOMJSClass sClass = {
484 : { "CustomElementRegistry",
485 : JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
486 : &sClassOps,
487 : JS_NULL_CLASS_SPEC,
488 : &sClassExtension,
489 : JS_NULL_OBJECT_OPS
490 : },
491 : { prototypes::id::CustomElementRegistry, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
492 : IsBaseOf<nsISupports, mozilla::dom::CustomElementRegistry >::value,
493 : sNativePropertyHooks,
494 : FindAssociatedGlobalForNative<mozilla::dom::CustomElementRegistry>::Get,
495 : GetProtoObjectHandle,
496 : GetCCParticipant<mozilla::dom::CustomElementRegistry>::Get()
497 : };
498 : static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
499 : "Must have the right minimal number of reserved slots.");
500 : static_assert(1 >= 1,
501 : "Must have enough reserved slots.");
502 :
503 : const JSClass*
504 0 : GetJSClass()
505 : {
506 0 : return sClass.ToJSClass();
507 : }
508 :
509 : bool
510 0 : Wrap(JSContext* aCx, mozilla::dom::CustomElementRegistry* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
511 : {
512 : MOZ_ASSERT(static_cast<mozilla::dom::CustomElementRegistry*>(aObject) ==
513 : reinterpret_cast<mozilla::dom::CustomElementRegistry*>(aObject),
514 : "Multiple inheritance for mozilla::dom::CustomElementRegistry is broken.");
515 0 : MOZ_ASSERT(ToSupportsIsCorrect(aObject));
516 0 : MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
517 0 : MOZ_ASSERT(!aCache->GetWrapper(),
518 : "You should probably not be using Wrap() directly; use "
519 : "GetOrCreateDOMReflector instead");
520 :
521 0 : MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
522 : "nsISupports must be on our primary inheritance chain");
523 :
524 0 : JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
525 0 : if (!global) {
526 0 : return false;
527 : }
528 0 : MOZ_ASSERT(JS_IsGlobalObject(global));
529 0 : MOZ_ASSERT(JS::ObjectIsNotGray(global));
530 :
531 : // That might have ended up wrapping us already, due to the wonders
532 : // of XBL. Check for that, and bail out as needed.
533 0 : aReflector.set(aCache->GetWrapper());
534 0 : if (aReflector) {
535 : #ifdef DEBUG
536 0 : binding_detail::AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
537 : #endif // DEBUG
538 0 : return true;
539 : }
540 :
541 0 : JSAutoCompartment ac(aCx, global);
542 0 : JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
543 0 : if (!canonicalProto) {
544 0 : return false;
545 : }
546 0 : JS::Rooted<JSObject*> proto(aCx);
547 0 : if (aGivenProto) {
548 0 : proto = aGivenProto;
549 : // Unfortunately, while aGivenProto was in the compartment of aCx
550 : // coming in, we changed compartments to that of "parent" so may need
551 : // to wrap the proto here.
552 0 : if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
553 0 : if (!JS_WrapObject(aCx, &proto)) {
554 0 : return false;
555 : }
556 : }
557 : } else {
558 0 : proto = canonicalProto;
559 : }
560 :
561 0 : BindingJSObjectCreator<mozilla::dom::CustomElementRegistry> creator(aCx);
562 0 : creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
563 0 : if (!aReflector) {
564 0 : return false;
565 : }
566 :
567 0 : aCache->SetWrapper(aReflector);
568 0 : creator.InitializationSucceeded();
569 :
570 0 : MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
571 : aCache->GetWrapperPreserveColor() == aReflector);
572 : // If proto != canonicalProto, we have to preserve our wrapper;
573 : // otherwise we won't be able to properly recreate it later, since
574 : // we won't know what proto to use. Note that we don't check
575 : // aGivenProto here, since it's entirely possible (and even
576 : // somewhat common) to have a non-null aGivenProto which is the
577 : // same as canonicalProto.
578 0 : if (proto != canonicalProto) {
579 0 : PreserveWrapper(aObject);
580 : }
581 :
582 0 : return true;
583 : }
584 :
585 : const NativePropertyHooks sNativePropertyHooks[] = { {
586 : nullptr,
587 : nullptr,
588 : nullptr,
589 : { sNativeProperties.Upcast(), nullptr },
590 : prototypes::id::CustomElementRegistry,
591 : constructors::id::CustomElementRegistry,
592 : nullptr,
593 : &DefaultXrayExpandoObjectClass
594 : } };
595 :
596 : void
597 0 : CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
598 : {
599 0 : JS::Rooted<JSObject*> parentProto(aCx, JS::GetRealmObjectPrototype(aCx));
600 0 : if (!parentProto) {
601 0 : return;
602 : }
603 :
604 0 : JS::Rooted<JSObject*> constructorProto(aCx, JS::GetRealmFunctionPrototype(aCx));
605 0 : if (!constructorProto) {
606 0 : return;
607 : }
608 :
609 : static bool sIdsInited = false;
610 0 : if (!sIdsInited && NS_IsMainThread()) {
611 0 : if (!InitIds(aCx, sNativeProperties.Upcast())) {
612 0 : return;
613 : }
614 0 : sIdsInited = true;
615 : }
616 :
617 0 : JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::CustomElementRegistry);
618 0 : JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::CustomElementRegistry);
619 0 : dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
620 : &sPrototypeClass.mBase, protoCache,
621 : constructorProto, &sInterfaceObjectClass.mBase, 0, nullptr,
622 : interfaceCache,
623 : sNativeProperties.Upcast(),
624 : nullptr,
625 : "CustomElementRegistry", aDefineOnGlobal,
626 : nullptr,
627 0 : false);
628 : }
629 :
630 : JS::Handle<JSObject*>
631 0 : GetProtoObjectHandle(JSContext* aCx)
632 : {
633 : /* Get the interface prototype object for this class. This will create the
634 : object as needed. */
635 0 : bool aDefineOnGlobal = true;
636 :
637 : /* Make sure our global is sane. Hopefully we can remove this sometime */
638 0 : JSObject* global = JS::CurrentGlobalOrNull(aCx);
639 0 : if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
640 0 : return nullptr;
641 : }
642 :
643 : /* Check to see whether the interface objects are already installed */
644 0 : ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
645 0 : if (!protoAndIfaceCache.HasEntryInSlot(prototypes::id::CustomElementRegistry)) {
646 0 : JS::Rooted<JSObject*> rootedGlobal(aCx, global);
647 0 : CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
648 : }
649 :
650 : /*
651 : * The object might _still_ be null, but that's OK.
652 : *
653 : * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
654 : * traced by TraceProtoAndIfaceCache() and its contents are never
655 : * changed after they have been set.
656 : *
657 : * Calling address() avoids the read read barrier that does gray
658 : * unmarking, but it's not possible for the object to be gray here.
659 : */
660 :
661 0 : const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(prototypes::id::CustomElementRegistry);
662 0 : MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
663 0 : return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
664 : }
665 :
666 : JS::Handle<JSObject*>
667 0 : GetConstructorObjectHandle(JSContext* aCx, bool aDefineOnGlobal)
668 : {
669 : /* Get the interface object for this class. This will create the object as
670 : needed. */
671 :
672 : /* Make sure our global is sane. Hopefully we can remove this sometime */
673 0 : JSObject* global = JS::CurrentGlobalOrNull(aCx);
674 0 : if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
675 0 : return nullptr;
676 : }
677 :
678 : /* Check to see whether the interface objects are already installed */
679 0 : ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
680 0 : if (!protoAndIfaceCache.HasEntryInSlot(constructors::id::CustomElementRegistry)) {
681 0 : JS::Rooted<JSObject*> rootedGlobal(aCx, global);
682 0 : CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
683 : }
684 :
685 : /*
686 : * The object might _still_ be null, but that's OK.
687 : *
688 : * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
689 : * traced by TraceProtoAndIfaceCache() and its contents are never
690 : * changed after they have been set.
691 : *
692 : * Calling address() avoids the read read barrier that does gray
693 : * unmarking, but it's not possible for the object to be gray here.
694 : */
695 :
696 0 : const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(constructors::id::CustomElementRegistry);
697 0 : MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
698 0 : return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
699 : }
700 :
701 : JSObject*
702 0 : GetConstructorObject(JSContext* aCx)
703 : {
704 0 : return GetConstructorObjectHandle(aCx);
705 : }
706 :
707 : } // namespace CustomElementRegistryBinding
708 :
709 :
710 :
711 : } // namespace dom
712 : } // namespace mozilla
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