Line data Source code
1 : /* THIS FILE IS AUTOGENERATED FROM OffscreenCanvas.webidl BY Codegen.py - DO NOT EDIT */
2 :
3 : #include "EventTargetBinding.h"
4 : #include "OffscreenCanvasBinding.h"
5 : #include "WrapperFactory.h"
6 : #include "mozilla/OwningNonNull.h"
7 : #include "mozilla/dom/BindingUtils.h"
8 : #include "mozilla/dom/DOMJSClass.h"
9 : #include "mozilla/dom/ImageBitmap.h"
10 : #include "mozilla/dom/NonRefcountedDOMObject.h"
11 : #include "mozilla/dom/Nullable.h"
12 : #include "mozilla/dom/OffscreenCanvas.h"
13 : #include "mozilla/dom/PrimitiveConversions.h"
14 : #include "mozilla/dom/Promise.h"
15 : #include "mozilla/dom/ToJSValue.h"
16 : #include "mozilla/dom/XrayExpandoClass.h"
17 : #include "nsISupports.h"
18 :
19 : namespace mozilla {
20 : namespace dom {
21 :
22 : namespace OffscreenCanvasBinding {
23 :
24 : static_assert(IsRefcounted<NativeType>::value == IsRefcounted<EventTargetBinding::NativeType>::value,
25 : "Can't inherit from an interface with a different ownership model.");
26 :
27 : static bool
28 0 : get_width(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::OffscreenCanvas* self, JSJitGetterCallArgs args)
29 : {
30 0 : uint32_t result(self->Width());
31 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
32 0 : args.rval().setNumber(result);
33 0 : return true;
34 : }
35 :
36 : static bool
37 0 : set_width(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::OffscreenCanvas* self, JSJitSetterCallArgs args)
38 : {
39 : uint32_t arg0;
40 0 : if (!ValueToPrimitive<uint32_t, eDefault>(cx, args[0], &arg0)) {
41 0 : return false;
42 : }
43 0 : binding_detail::FastErrorResult rv;
44 0 : self->SetWidth(arg0, rv);
45 0 : if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
46 0 : return false;
47 : }
48 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
49 :
50 0 : return true;
51 : }
52 :
53 : static const JSJitInfo width_getterinfo = {
54 : { (JSJitGetterOp)get_width },
55 : { prototypes::id::OffscreenCanvas },
56 : { PrototypeTraits<prototypes::id::OffscreenCanvas>::Depth },
57 : JSJitInfo::Getter,
58 : JSJitInfo::AliasDOMSets, /* aliasSet. Not relevant for setters. */
59 : JSVAL_TYPE_DOUBLE, /* returnType. Not relevant for setters. */
60 : true, /* isInfallible. False in setters. */
61 : true, /* isMovable. Not relevant for setters. */
62 : true, /* isEliminatable. Not relevant for setters. */
63 : false, /* isAlwaysInSlot. Only relevant for getters. */
64 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
65 : false, /* isTypedMethod. Only relevant for methods. */
66 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
67 : };
68 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
69 : static_assert(0 < 1, "There is no slot for us");
70 : static const JSJitInfo width_setterinfo = {
71 : { (JSJitGetterOp)set_width },
72 : { prototypes::id::OffscreenCanvas },
73 : { PrototypeTraits<prototypes::id::OffscreenCanvas>::Depth },
74 : JSJitInfo::Setter,
75 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
76 : JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
77 : false, /* isInfallible. False in setters. */
78 : false, /* isMovable. Not relevant for setters. */
79 : false, /* isEliminatable. Not relevant for setters. */
80 : false, /* isAlwaysInSlot. Only relevant for getters. */
81 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
82 : false, /* isTypedMethod. Only relevant for methods. */
83 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
84 : };
85 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
86 : static_assert(0 < 1, "There is no slot for us");
87 :
88 : static bool
89 0 : get_height(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::OffscreenCanvas* self, JSJitGetterCallArgs args)
90 : {
91 0 : uint32_t result(self->Height());
92 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
93 0 : args.rval().setNumber(result);
94 0 : return true;
95 : }
96 :
97 : static bool
98 0 : set_height(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::OffscreenCanvas* self, JSJitSetterCallArgs args)
99 : {
100 : uint32_t arg0;
101 0 : if (!ValueToPrimitive<uint32_t, eDefault>(cx, args[0], &arg0)) {
102 0 : return false;
103 : }
104 0 : binding_detail::FastErrorResult rv;
105 0 : self->SetHeight(arg0, rv);
106 0 : if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
107 0 : return false;
108 : }
109 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
110 :
111 0 : return true;
112 : }
113 :
114 : static const JSJitInfo height_getterinfo = {
115 : { (JSJitGetterOp)get_height },
116 : { prototypes::id::OffscreenCanvas },
117 : { PrototypeTraits<prototypes::id::OffscreenCanvas>::Depth },
118 : JSJitInfo::Getter,
119 : JSJitInfo::AliasDOMSets, /* aliasSet. Not relevant for setters. */
120 : JSVAL_TYPE_DOUBLE, /* returnType. Not relevant for setters. */
121 : true, /* isInfallible. False in setters. */
122 : true, /* isMovable. Not relevant for setters. */
123 : true, /* isEliminatable. Not relevant for setters. */
124 : false, /* isAlwaysInSlot. Only relevant for getters. */
125 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
126 : false, /* isTypedMethod. Only relevant for methods. */
127 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
128 : };
129 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
130 : static_assert(0 < 1, "There is no slot for us");
131 : static const JSJitInfo height_setterinfo = {
132 : { (JSJitGetterOp)set_height },
133 : { prototypes::id::OffscreenCanvas },
134 : { PrototypeTraits<prototypes::id::OffscreenCanvas>::Depth },
135 : JSJitInfo::Setter,
136 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
137 : JSVAL_TYPE_UNDEFINED, /* returnType. Not relevant for setters. */
138 : false, /* isInfallible. False in setters. */
139 : false, /* isMovable. Not relevant for setters. */
140 : false, /* isEliminatable. Not relevant for setters. */
141 : false, /* isAlwaysInSlot. Only relevant for getters. */
142 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
143 : false, /* isTypedMethod. Only relevant for methods. */
144 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
145 : };
146 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
147 : static_assert(0 < 1, "There is no slot for us");
148 :
149 : static bool
150 0 : getContext(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::OffscreenCanvas* self, const JSJitMethodCallArgs& args)
151 : {
152 0 : if (MOZ_UNLIKELY(args.length() < 1)) {
153 0 : return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "OffscreenCanvas.getContext");
154 : }
155 0 : binding_detail::FakeString arg0;
156 0 : if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
157 0 : return false;
158 : }
159 0 : JS::Rooted<JS::Value> arg1(cx);
160 0 : if (args.hasDefined(1)) {
161 0 : arg1 = args[1];
162 : } else {
163 0 : arg1 = JS::NullValue();
164 : }
165 0 : binding_detail::FastErrorResult rv;
166 0 : auto result(StrongOrRawPtr<nsISupports>(self->GetContext(cx, NonNullHelper(Constify(arg0)), arg1, rv)));
167 0 : if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
168 0 : return false;
169 : }
170 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
171 0 : if (!result) {
172 0 : args.rval().setNull();
173 0 : return true;
174 : }
175 0 : if (!WrapObject(cx, result, args.rval())) {
176 0 : return false;
177 : }
178 0 : return true;
179 : }
180 :
181 : static const JSJitInfo getContext_methodinfo = {
182 : { (JSJitGetterOp)getContext },
183 : { prototypes::id::OffscreenCanvas },
184 : { PrototypeTraits<prototypes::id::OffscreenCanvas>::Depth },
185 : JSJitInfo::Method,
186 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
187 : JSVAL_TYPE_UNKNOWN, /* returnType. Not relevant for setters. */
188 : false, /* isInfallible. False in setters. */
189 : false, /* isMovable. Not relevant for setters. */
190 : false, /* isEliminatable. Not relevant for setters. */
191 : false, /* isAlwaysInSlot. Only relevant for getters. */
192 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
193 : false, /* isTypedMethod. Only relevant for methods. */
194 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
195 : };
196 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
197 : static_assert(0 < 1, "There is no slot for us");
198 :
199 : static bool
200 0 : transferToImageBitmap(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::OffscreenCanvas* self, const JSJitMethodCallArgs& args)
201 : {
202 0 : auto result(StrongOrRawPtr<mozilla::dom::ImageBitmap>(self->TransferToImageBitmap()));
203 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
204 0 : if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
205 0 : MOZ_ASSERT(true || JS_IsExceptionPending(cx));
206 0 : return false;
207 : }
208 0 : return true;
209 : }
210 :
211 : static const JSJitInfo transferToImageBitmap_methodinfo = {
212 : { (JSJitGetterOp)transferToImageBitmap },
213 : { prototypes::id::OffscreenCanvas },
214 : { PrototypeTraits<prototypes::id::OffscreenCanvas>::Depth },
215 : JSJitInfo::Method,
216 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
217 : JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
218 : false, /* isInfallible. False in setters. */
219 : false, /* isMovable. Not relevant for setters. */
220 : false, /* isEliminatable. Not relevant for setters. */
221 : false, /* isAlwaysInSlot. Only relevant for getters. */
222 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
223 : false, /* isTypedMethod. Only relevant for methods. */
224 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
225 : };
226 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
227 : static_assert(0 < 1, "There is no slot for us");
228 :
229 : static bool
230 0 : toBlob(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::OffscreenCanvas* self, const JSJitMethodCallArgs& args)
231 : {
232 0 : binding_detail::FakeString arg0;
233 0 : if (args.hasDefined(0)) {
234 0 : if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
235 0 : return false;
236 : }
237 : } else {
238 : static const char16_t data[] = { 0 };
239 0 : arg0.Rebind(data, ArrayLength(data) - 1);
240 : }
241 0 : JS::Rooted<JS::Value> arg1(cx);
242 0 : if (args.hasDefined(1)) {
243 0 : arg1 = args[1];
244 : } else {
245 0 : arg1 = JS::UndefinedValue();
246 : }
247 0 : binding_detail::FastErrorResult rv;
248 0 : auto result(StrongOrRawPtr<Promise>(self->ToBlob(cx, NonNullHelper(Constify(arg0)), arg1, rv)));
249 0 : if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
250 0 : return false;
251 : }
252 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
253 0 : if (!ToJSValue(cx, result, args.rval())) {
254 0 : return false;
255 : }
256 0 : return true;
257 : }
258 :
259 : static bool
260 0 : toBlob_promiseWrapper(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::OffscreenCanvas* self, const JSJitMethodCallArgs& args)
261 : {
262 : // Make sure to save the callee before someone maybe messes
263 : // with rval().
264 0 : JS::Rooted<JSObject*> callee(cx, &args.callee());
265 0 : bool ok = toBlob(cx, obj, self, args);
266 0 : if (ok) {
267 0 : return true;
268 : }
269 0 : return ConvertExceptionToPromise(cx, xpc::XrayAwareCalleeGlobal(callee),
270 0 : args.rval());
271 : }
272 :
273 : static const JSJitInfo toBlob_methodinfo = {
274 : { (JSJitGetterOp)toBlob_promiseWrapper },
275 : { prototypes::id::OffscreenCanvas },
276 : { PrototypeTraits<prototypes::id::OffscreenCanvas>::Depth },
277 : JSJitInfo::Method,
278 : JSJitInfo::AliasEverything, /* aliasSet. Not relevant for setters. */
279 : JSVAL_TYPE_OBJECT, /* returnType. Not relevant for setters. */
280 : false, /* isInfallible. False in setters. */
281 : false, /* isMovable. Not relevant for setters. */
282 : false, /* isEliminatable. Not relevant for setters. */
283 : false, /* isAlwaysInSlot. Only relevant for getters. */
284 : false, /* isLazilyCachedInSlot. Only relevant for getters. */
285 : false, /* isTypedMethod. Only relevant for methods. */
286 : 0 /* Reserved slot index, if we're stored in a slot, else 0. */
287 : };
288 : static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
289 : static_assert(0 < 1, "There is no slot for us");
290 :
291 : static bool
292 0 : _addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
293 : {
294 0 : mozilla::dom::OffscreenCanvas* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::OffscreenCanvas>(obj);
295 : // We don't want to preserve if we don't have a wrapper, and we
296 : // obviously can't preserve if we're not initialized.
297 0 : if (self && self->GetWrapperPreserveColor()) {
298 0 : PreserveWrapper(self);
299 : }
300 0 : return true;
301 : }
302 :
303 : static void
304 0 : _finalize(js::FreeOp* fop, JSObject* obj)
305 : {
306 0 : mozilla::dom::OffscreenCanvas* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::OffscreenCanvas>(obj);
307 0 : if (self) {
308 0 : ClearWrapper(self, self, obj);
309 0 : AddForDeferredFinalization<mozilla::dom::OffscreenCanvas>(self);
310 : }
311 0 : }
312 :
313 : static void
314 0 : _objectMoved(JSObject* obj, const JSObject* old)
315 : {
316 0 : mozilla::dom::OffscreenCanvas* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::OffscreenCanvas>(obj);
317 0 : if (self) {
318 0 : UpdateWrapper(self, self, obj, old);
319 : }
320 0 : }
321 :
322 : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
323 : #if defined(__clang__)
324 : #pragma clang diagnostic push
325 : #pragma clang diagnostic ignored "-Wmissing-braces"
326 : #endif
327 : static const JSFunctionSpec sMethods_specs[] = {
328 : JS_FNSPEC("getContext", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&getContext_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
329 : JS_FNSPEC("transferToImageBitmap", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&transferToImageBitmap_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
330 : JS_FNSPEC("toBlob", GenericPromiseReturningBindingMethod, reinterpret_cast<const JSJitInfo*>(&toBlob_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
331 : JS_FS_END
332 : };
333 : #if defined(__clang__)
334 : #pragma clang diagnostic pop
335 : #endif
336 :
337 :
338 : // Can't be const because the pref-enabled boolean needs to be writable
339 : static Prefable<const JSFunctionSpec> sMethods[] = {
340 : { nullptr, &sMethods_specs[0] },
341 : { nullptr, nullptr }
342 : };
343 :
344 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
345 : "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
346 : static_assert(3 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
347 : "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
348 :
349 : // We deliberately use brace-elision to make Visual Studio produce better initalization code.
350 : #if defined(__clang__)
351 : #pragma clang diagnostic push
352 : #pragma clang diagnostic ignored "-Wmissing-braces"
353 : #endif
354 : static const JSPropertySpec sAttributes_specs[] = {
355 : { "width", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &width_getterinfo, GenericBindingSetter, &width_setterinfo },
356 : { "height", JSPROP_SHARED | JSPROP_ENUMERATE, GenericBindingGetter, &height_getterinfo, GenericBindingSetter, &height_setterinfo },
357 : { nullptr, 0, nullptr, nullptr, nullptr, nullptr }
358 : };
359 : #if defined(__clang__)
360 : #pragma clang diagnostic pop
361 : #endif
362 :
363 :
364 : // Can't be const because the pref-enabled boolean needs to be writable
365 : static Prefable<const JSPropertySpec> sAttributes[] = {
366 : { nullptr, &sAttributes_specs[0] },
367 : { nullptr, nullptr }
368 : };
369 :
370 : static_assert(1 <= 1ull << NUM_BITS_PROPERTY_INFO_PREF_INDEX,
371 : "We have a prefable index that is >= (1 << NUM_BITS_PROPERTY_INFO_PREF_INDEX)");
372 : static_assert(2 <= 1ull << NUM_BITS_PROPERTY_INFO_SPEC_INDEX,
373 : "We have a spec index that is >= (1 << NUM_BITS_PROPERTY_INFO_SPEC_INDEX)");
374 :
375 :
376 : static uint16_t sNativeProperties_sortedPropertyIndices[5];
377 : static PropertyInfo sNativeProperties_propertyInfos[5];
378 :
379 : static const NativePropertiesN<2> sNativeProperties = {
380 : false, 0,
381 : false, 0,
382 : true, 0 /* sMethods */,
383 : true, 1 /* sAttributes */,
384 : false, 0,
385 : false, 0,
386 : false, 0,
387 : -1,
388 : 5,
389 : sNativeProperties_sortedPropertyIndices,
390 : {
391 : { sMethods, &sNativeProperties_propertyInfos[0] },
392 : { sAttributes, &sNativeProperties_propertyInfos[3] }
393 : }
394 : };
395 : static_assert(5 < 1ull << CHAR_BIT * sizeof(sNativeProperties.propertyInfoCount),
396 : "We have a property info count that is oversized");
397 :
398 : static bool
399 0 : _constructor(JSContext* cx, unsigned argc, JS::Value* vp)
400 : {
401 0 : JS::CallArgs args = JS::CallArgsFromVp(argc, vp);
402 0 : JS::Rooted<JSObject*> obj(cx, &args.callee());
403 0 : if (!args.isConstructing()) {
404 : // XXXbz wish I could get the name from the callee instead of
405 : // Adding more relocations
406 0 : return ThrowConstructorWithoutNew(cx, "OffscreenCanvas");
407 : }
408 :
409 0 : GlobalObject global(cx, obj);
410 0 : if (global.Failed()) {
411 0 : return false;
412 : }
413 :
414 0 : JS::Rooted<JSObject*> desiredProto(cx);
415 0 : if (!GetDesiredProto(cx, args, &desiredProto)) {
416 0 : return false;
417 : }
418 :
419 0 : if (MOZ_UNLIKELY(args.length() < 2)) {
420 0 : return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "OffscreenCanvas");
421 : }
422 0 : bool objIsXray = xpc::WrapperFactory::IsXrayWrapper(obj);
423 : uint32_t arg0;
424 0 : if (!ValueToPrimitive<uint32_t, eDefault>(cx, args[0], &arg0)) {
425 0 : return false;
426 : }
427 : uint32_t arg1;
428 0 : if (!ValueToPrimitive<uint32_t, eDefault>(cx, args[1], &arg1)) {
429 0 : return false;
430 : }
431 0 : Maybe<JSAutoCompartment> ac;
432 0 : if (objIsXray) {
433 0 : obj = js::CheckedUnwrap(obj);
434 0 : if (!obj) {
435 0 : return false;
436 : }
437 0 : ac.emplace(cx, obj);
438 0 : if (!JS_WrapObject(cx, &desiredProto)) {
439 0 : return false;
440 : }
441 : }
442 0 : binding_detail::FastErrorResult rv;
443 0 : auto result(StrongOrRawPtr<mozilla::dom::OffscreenCanvas>(mozilla::dom::OffscreenCanvas::Constructor(global, arg0, arg1, rv)));
444 0 : if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
445 0 : return false;
446 : }
447 0 : MOZ_ASSERT(!JS_IsExceptionPending(cx));
448 : static_assert(!IsPointer<decltype(result)>::value,
449 : "NewObject implies that we need to keep the object alive with a strong reference.");
450 0 : if (!GetOrCreateDOMReflector(cx, result, args.rval(), desiredProto)) {
451 0 : MOZ_ASSERT(true || JS_IsExceptionPending(cx));
452 0 : return false;
453 : }
454 0 : return true;
455 : }
456 :
457 : static const js::ClassOps sInterfaceObjectClassOps = {
458 : nullptr, /* addProperty */
459 : nullptr, /* delProperty */
460 : nullptr, /* getProperty */
461 : nullptr, /* setProperty */
462 : nullptr, /* enumerate */
463 : nullptr, /* newEnumerate */
464 : nullptr, /* resolve */
465 : nullptr, /* mayResolve */
466 : nullptr, /* finalize */
467 : _constructor, /* call */
468 : nullptr, /* hasInstance */
469 : _constructor, /* construct */
470 : nullptr, /* trace */
471 : };
472 :
473 : static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
474 : {
475 : "Function",
476 : JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
477 : &sInterfaceObjectClassOps,
478 : JS_NULL_CLASS_SPEC,
479 : JS_NULL_CLASS_EXT,
480 : &sInterfaceObjectClassObjectOps
481 : },
482 : eInterface,
483 : true,
484 : prototypes::id::OffscreenCanvas,
485 : PrototypeTraits<prototypes::id::OffscreenCanvas>::Depth,
486 : sNativePropertyHooks,
487 : "function OffscreenCanvas() {\n [native code]\n}",
488 : EventTargetBinding::GetConstructorObject
489 : };
490 :
491 : static const DOMIfaceAndProtoJSClass sPrototypeClass = {
492 : {
493 : "OffscreenCanvasPrototype",
494 : JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
495 : JS_NULL_CLASS_OPS,
496 : JS_NULL_CLASS_SPEC,
497 : JS_NULL_CLASS_EXT,
498 : JS_NULL_OBJECT_OPS
499 : },
500 : eInterfacePrototype,
501 : false,
502 : prototypes::id::OffscreenCanvas,
503 : PrototypeTraits<prototypes::id::OffscreenCanvas>::Depth,
504 : sNativePropertyHooks,
505 : "[object OffscreenCanvasPrototype]",
506 : EventTargetBinding::GetProtoObject
507 : };
508 :
509 : bool
510 1 : ConstructorEnabled(JSContext* aCx, JS::Handle<JSObject*> aObj)
511 : {
512 1 : return mozilla::dom::OffscreenCanvas::PrefEnabled(aCx, aObj);
513 : }
514 :
515 : JSObject*
516 0 : DefineDOMInterface(JSContext* aCx, JS::Handle<JSObject*> aGlobal, JS::Handle<jsid> id, bool aDefineOnGlobal)
517 : {
518 0 : return GetConstructorObjectHandle(aCx, aDefineOnGlobal);
519 : }
520 :
521 : static const js::ClassOps sClassOps = {
522 : _addProperty, /* addProperty */
523 : nullptr, /* delProperty */
524 : nullptr, /* getProperty */
525 : nullptr, /* setProperty */
526 : nullptr, /* enumerate */
527 : nullptr, /* newEnumerate */
528 : nullptr, /* resolve */
529 : nullptr, /* mayResolve */
530 : _finalize, /* finalize */
531 : nullptr, /* call */
532 : nullptr, /* hasInstance */
533 : nullptr, /* construct */
534 : nullptr, /* trace */
535 : };
536 :
537 : static const js::ClassExtension sClassExtension = {
538 : nullptr, /* weakmapKeyDelegateOp */
539 : _objectMoved /* objectMovedOp */
540 : };
541 :
542 : static const DOMJSClass sClass = {
543 : { "OffscreenCanvas",
544 : JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
545 : &sClassOps,
546 : JS_NULL_CLASS_SPEC,
547 : &sClassExtension,
548 : JS_NULL_OBJECT_OPS
549 : },
550 : { prototypes::id::EventTarget, prototypes::id::OffscreenCanvas, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
551 : IsBaseOf<nsISupports, mozilla::dom::OffscreenCanvas >::value,
552 : sNativePropertyHooks,
553 : FindAssociatedGlobalForNative<mozilla::dom::OffscreenCanvas>::Get,
554 : GetProtoObjectHandle,
555 : GetCCParticipant<mozilla::dom::OffscreenCanvas>::Get()
556 : };
557 : static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
558 : "Must have the right minimal number of reserved slots.");
559 : static_assert(1 >= 1,
560 : "Must have enough reserved slots.");
561 :
562 : const JSClass*
563 0 : GetJSClass()
564 : {
565 0 : return sClass.ToJSClass();
566 : }
567 :
568 : bool
569 0 : Wrap(JSContext* aCx, mozilla::dom::OffscreenCanvas* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
570 : {
571 : MOZ_ASSERT(static_cast<mozilla::dom::OffscreenCanvas*>(aObject) ==
572 : reinterpret_cast<mozilla::dom::OffscreenCanvas*>(aObject),
573 : "Multiple inheritance for mozilla::dom::OffscreenCanvas is broken.");
574 : MOZ_ASSERT(static_cast<mozilla::dom::EventTarget*>(aObject) ==
575 : reinterpret_cast<mozilla::dom::EventTarget*>(aObject),
576 : "Multiple inheritance for mozilla::dom::EventTarget is broken.");
577 0 : MOZ_ASSERT(ToSupportsIsCorrect(aObject));
578 0 : MOZ_ASSERT_IF(aGivenProto, js::IsObjectInContextCompartment(aGivenProto, aCx));
579 0 : MOZ_ASSERT(!aCache->GetWrapper(),
580 : "You should probably not be using Wrap() directly; use "
581 : "GetOrCreateDOMReflector instead");
582 :
583 0 : MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
584 : "nsISupports must be on our primary inheritance chain");
585 :
586 0 : JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
587 0 : if (!global) {
588 0 : return false;
589 : }
590 0 : MOZ_ASSERT(JS_IsGlobalObject(global));
591 0 : MOZ_ASSERT(JS::ObjectIsNotGray(global));
592 :
593 : // That might have ended up wrapping us already, due to the wonders
594 : // of XBL. Check for that, and bail out as needed.
595 0 : aReflector.set(aCache->GetWrapper());
596 0 : if (aReflector) {
597 : #ifdef DEBUG
598 0 : binding_detail::AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
599 : #endif // DEBUG
600 0 : return true;
601 : }
602 :
603 0 : JSAutoCompartment ac(aCx, global);
604 0 : JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
605 0 : if (!canonicalProto) {
606 0 : return false;
607 : }
608 0 : JS::Rooted<JSObject*> proto(aCx);
609 0 : if (aGivenProto) {
610 0 : proto = aGivenProto;
611 : // Unfortunately, while aGivenProto was in the compartment of aCx
612 : // coming in, we changed compartments to that of "parent" so may need
613 : // to wrap the proto here.
614 0 : if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
615 0 : if (!JS_WrapObject(aCx, &proto)) {
616 0 : return false;
617 : }
618 : }
619 : } else {
620 0 : proto = canonicalProto;
621 : }
622 :
623 0 : BindingJSObjectCreator<mozilla::dom::OffscreenCanvas> creator(aCx);
624 0 : creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
625 0 : if (!aReflector) {
626 0 : return false;
627 : }
628 :
629 0 : aCache->SetWrapper(aReflector);
630 0 : creator.InitializationSucceeded();
631 :
632 0 : MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
633 : aCache->GetWrapperPreserveColor() == aReflector);
634 : // If proto != canonicalProto, we have to preserve our wrapper;
635 : // otherwise we won't be able to properly recreate it later, since
636 : // we won't know what proto to use. Note that we don't check
637 : // aGivenProto here, since it's entirely possible (and even
638 : // somewhat common) to have a non-null aGivenProto which is the
639 : // same as canonicalProto.
640 0 : if (proto != canonicalProto) {
641 0 : PreserveWrapper(aObject);
642 : }
643 :
644 0 : return true;
645 : }
646 :
647 : const NativePropertyHooks sNativePropertyHooks[] = { {
648 : nullptr,
649 : nullptr,
650 : nullptr,
651 : { sNativeProperties.Upcast(), nullptr },
652 : prototypes::id::OffscreenCanvas,
653 : constructors::id::OffscreenCanvas,
654 : EventTargetBinding::sNativePropertyHooks,
655 : &DefaultXrayExpandoObjectClass
656 : } };
657 :
658 : void
659 0 : CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
660 : {
661 0 : JS::Handle<JSObject*> parentProto(EventTargetBinding::GetProtoObjectHandle(aCx));
662 0 : if (!parentProto) {
663 0 : return;
664 : }
665 :
666 0 : JS::Handle<JSObject*> constructorProto(EventTargetBinding::GetConstructorObjectHandle(aCx));
667 0 : if (!constructorProto) {
668 0 : return;
669 : }
670 :
671 : static bool sIdsInited = false;
672 0 : if (!sIdsInited && NS_IsMainThread()) {
673 0 : if (!InitIds(aCx, sNativeProperties.Upcast())) {
674 0 : return;
675 : }
676 0 : sIdsInited = true;
677 : }
678 :
679 0 : JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::OffscreenCanvas);
680 0 : JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::OffscreenCanvas);
681 0 : dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
682 : &sPrototypeClass.mBase, protoCache,
683 : constructorProto, &sInterfaceObjectClass.mBase, 2, nullptr,
684 : interfaceCache,
685 : sNativeProperties.Upcast(),
686 : nullptr,
687 : "OffscreenCanvas", aDefineOnGlobal,
688 : nullptr,
689 0 : false);
690 : }
691 :
692 : JS::Handle<JSObject*>
693 0 : GetProtoObjectHandle(JSContext* aCx)
694 : {
695 : /* Get the interface prototype object for this class. This will create the
696 : object as needed. */
697 0 : bool aDefineOnGlobal = true;
698 :
699 : /* Make sure our global is sane. Hopefully we can remove this sometime */
700 0 : JSObject* global = JS::CurrentGlobalOrNull(aCx);
701 0 : if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
702 0 : return nullptr;
703 : }
704 :
705 : /* Check to see whether the interface objects are already installed */
706 0 : ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
707 0 : if (!protoAndIfaceCache.HasEntryInSlot(prototypes::id::OffscreenCanvas)) {
708 0 : JS::Rooted<JSObject*> rootedGlobal(aCx, global);
709 0 : CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
710 : }
711 :
712 : /*
713 : * The object might _still_ be null, but that's OK.
714 : *
715 : * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
716 : * traced by TraceProtoAndIfaceCache() and its contents are never
717 : * changed after they have been set.
718 : *
719 : * Calling address() avoids the read read barrier that does gray
720 : * unmarking, but it's not possible for the object to be gray here.
721 : */
722 :
723 0 : const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(prototypes::id::OffscreenCanvas);
724 0 : MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
725 0 : return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
726 : }
727 :
728 : JS::Handle<JSObject*>
729 0 : GetConstructorObjectHandle(JSContext* aCx, bool aDefineOnGlobal)
730 : {
731 : /* Get the interface object for this class. This will create the object as
732 : needed. */
733 :
734 : /* Make sure our global is sane. Hopefully we can remove this sometime */
735 0 : JSObject* global = JS::CurrentGlobalOrNull(aCx);
736 0 : if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
737 0 : return nullptr;
738 : }
739 :
740 : /* Check to see whether the interface objects are already installed */
741 0 : ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
742 0 : if (!protoAndIfaceCache.HasEntryInSlot(constructors::id::OffscreenCanvas)) {
743 0 : JS::Rooted<JSObject*> rootedGlobal(aCx, global);
744 0 : CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
745 : }
746 :
747 : /*
748 : * The object might _still_ be null, but that's OK.
749 : *
750 : * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
751 : * traced by TraceProtoAndIfaceCache() and its contents are never
752 : * changed after they have been set.
753 : *
754 : * Calling address() avoids the read read barrier that does gray
755 : * unmarking, but it's not possible for the object to be gray here.
756 : */
757 :
758 0 : const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(constructors::id::OffscreenCanvas);
759 0 : MOZ_ASSERT(JS::ObjectIsNotGray(entrySlot));
760 0 : return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
761 : }
762 :
763 : JSObject*
764 0 : GetConstructorObject(JSContext* aCx)
765 : {
766 0 : return GetConstructorObjectHandle(aCx);
767 : }
768 :
769 : } // namespace OffscreenCanvasBinding
770 :
771 :
772 :
773 : } // namespace dom
774 : } // namespace mozilla
|
