1 | /* |
2 | This file is part of the WebKit open source project. |
3 | This file has been generated by generate-bindings.pl. DO NOT MODIFY! |
4 | |
5 | This library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Library General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2 of the License, or (at your option) any later version. |
9 | |
10 | This library is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | Library General Public License for more details. |
14 | |
15 | You should have received a copy of the GNU Library General Public License |
16 | along with this library; see the file COPYING.LIB. If not, write to |
17 | the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
18 | Boston, MA 02110-1301, USA. |
19 | */ |
20 | |
21 | #include "config.h" |
22 | |
23 | #if ENABLE(VIDEO_TRACK) |
24 | |
25 | #include "JSVideoTrack.h" |
26 | |
27 | #include "Element.h" |
28 | #include "JSDOMAttribute.h" |
29 | #include "JSDOMBinding.h" |
30 | #include "JSDOMConstructorNotConstructable.h" |
31 | #include "JSDOMConvertBoolean.h" |
32 | #include "JSDOMConvertStrings.h" |
33 | #include "JSDOMExceptionHandling.h" |
34 | #include "JSDOMWrapperCache.h" |
35 | #include "JSNodeCustom.h" |
36 | #include "ScriptExecutionContext.h" |
37 | #include <JavaScriptCore/FunctionPrototype.h> |
38 | #include <JavaScriptCore/HeapSnapshotBuilder.h> |
39 | #include <JavaScriptCore/JSCInlines.h> |
40 | #include <wtf/GetPtr.h> |
41 | #include <wtf/PointerPreparations.h> |
42 | #include <wtf/URL.h> |
43 | |
44 | #if ENABLE(MEDIA_SOURCE) && ENABLE(VIDEO_TRACK) |
45 | #include "JSDOMConvertInterface.h" |
46 | #include "JSDOMConvertNullable.h" |
47 | #include "JSDOMGlobalObject.h" |
48 | #include "JSSourceBuffer.h" |
49 | #include "VideoTrackMediaSource.h" |
50 | #endif |
51 | |
52 | |
53 | namespace WebCore { |
54 | using namespace JSC; |
55 | |
56 | // Attributes |
57 | |
58 | JSC::EncodedJSValue jsVideoTrackConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName); |
59 | bool setJSVideoTrackConstructor(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue); |
60 | JSC::EncodedJSValue jsVideoTrackId(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName); |
61 | JSC::EncodedJSValue jsVideoTrackKind(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName); |
62 | #if ENABLE(MEDIA_SOURCE) |
63 | bool setJSVideoTrackKind(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue); |
64 | #endif |
65 | JSC::EncodedJSValue jsVideoTrackLabel(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName); |
66 | JSC::EncodedJSValue jsVideoTrackLanguage(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName); |
67 | #if ENABLE(MEDIA_SOURCE) |
68 | bool setJSVideoTrackLanguage(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue); |
69 | #endif |
70 | JSC::EncodedJSValue jsVideoTrackSelected(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName); |
71 | bool setJSVideoTrackSelected(JSC::ExecState*, JSC::EncodedJSValue, JSC::EncodedJSValue); |
72 | #if ENABLE(MEDIA_SOURCE) && ENABLE(VIDEO_TRACK) |
73 | JSC::EncodedJSValue jsVideoTrackSourceBuffer(JSC::ExecState*, JSC::EncodedJSValue, JSC::PropertyName); |
74 | #endif |
75 | |
76 | class JSVideoTrackPrototype : public JSC::JSNonFinalObject { |
77 | public: |
78 | using Base = JSC::JSNonFinalObject; |
79 | static JSVideoTrackPrototype* create(JSC::VM& vm, JSDOMGlobalObject* globalObject, JSC::Structure* structure) |
80 | { |
81 | JSVideoTrackPrototype* ptr = new (NotNull, JSC::allocateCell<JSVideoTrackPrototype>(vm.heap)) JSVideoTrackPrototype(vm, globalObject, structure); |
82 | ptr->finishCreation(vm); |
83 | return ptr; |
84 | } |
85 | |
86 | DECLARE_INFO; |
87 | static JSC::Structure* createStructure(JSC::VM& vm, JSC::JSGlobalObject* globalObject, JSC::JSValue prototype) |
88 | { |
89 | return JSC::Structure::create(vm, globalObject, prototype, JSC::TypeInfo(JSC::ObjectType, StructureFlags), info()); |
90 | } |
91 | |
92 | private: |
93 | JSVideoTrackPrototype(JSC::VM& vm, JSC::JSGlobalObject*, JSC::Structure* structure) |
94 | : JSC::JSNonFinalObject(vm, structure) |
95 | { |
96 | } |
97 | |
98 | void finishCreation(JSC::VM&); |
99 | }; |
100 | |
101 | using JSVideoTrackConstructor = JSDOMConstructorNotConstructable<JSVideoTrack>; |
102 | |
103 | template<> JSValue JSVideoTrackConstructor::prototypeForStructure(JSC::VM& vm, const JSDOMGlobalObject& globalObject) |
104 | { |
105 | UNUSED_PARAM(vm); |
106 | return globalObject.functionPrototype(); |
107 | } |
108 | |
109 | template<> void JSVideoTrackConstructor::initializeProperties(VM& vm, JSDOMGlobalObject& globalObject) |
110 | { |
111 | putDirect(vm, vm.propertyNames->prototype, JSVideoTrack::prototype(vm, globalObject), JSC::PropertyAttribute::DontDelete | JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum); |
112 | putDirect(vm, vm.propertyNames->name, jsNontrivialString(&vm, String("VideoTrack"_s )), JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum); |
113 | putDirect(vm, vm.propertyNames->length, jsNumber(0), JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontEnum); |
114 | } |
115 | |
116 | template<> const ClassInfo JSVideoTrackConstructor::s_info = { "VideoTrack" , &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSVideoTrackConstructor) }; |
117 | |
118 | /* Hash table for prototype */ |
119 | |
120 | static const HashTableValue JSVideoTrackPrototypeTableValues[] = |
121 | { |
122 | { "constructor" , static_cast<unsigned>(JSC::PropertyAttribute::DontEnum), NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsVideoTrackConstructor), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSVideoTrackConstructor) } }, |
123 | { "id" , static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsVideoTrackId), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } }, |
124 | #if ENABLE(MEDIA_SOURCE) |
125 | { "kind" , static_cast<unsigned>(JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsVideoTrackKind), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSVideoTrackKind) } }, |
126 | #else |
127 | { "kind" , JSC::PropertyAttribute::ReadOnly | static_cast<unsigned>(JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsVideoTrackKind), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } }, |
128 | #endif |
129 | { "label" , static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsVideoTrackLabel), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } }, |
130 | #if ENABLE(MEDIA_SOURCE) |
131 | { "language" , static_cast<unsigned>(JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsVideoTrackLanguage), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSVideoTrackLanguage) } }, |
132 | #else |
133 | { "language" , JSC::PropertyAttribute::ReadOnly | static_cast<unsigned>(JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsVideoTrackLanguage), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } }, |
134 | #endif |
135 | { "selected" , static_cast<unsigned>(JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsVideoTrackSelected), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(setJSVideoTrackSelected) } }, |
136 | #if ENABLE(MEDIA_SOURCE) && ENABLE(VIDEO_TRACK) |
137 | { "sourceBuffer" , static_cast<unsigned>(JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::CustomAccessor | JSC::PropertyAttribute::DOMAttribute), NoIntrinsic, { (intptr_t)static_cast<PropertySlot::GetValueFunc>(jsVideoTrackSourceBuffer), (intptr_t) static_cast<PutPropertySlot::PutValueFunc>(0) } }, |
138 | #else |
139 | { 0, 0, NoIntrinsic, { 0, 0 } }, |
140 | #endif |
141 | }; |
142 | |
143 | const ClassInfo JSVideoTrackPrototype::s_info = { "VideoTrackPrototype" , &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSVideoTrackPrototype) }; |
144 | |
145 | void JSVideoTrackPrototype::finishCreation(VM& vm) |
146 | { |
147 | Base::finishCreation(vm); |
148 | reifyStaticProperties(vm, JSVideoTrack::info(), JSVideoTrackPrototypeTableValues, *this); |
149 | } |
150 | |
151 | const ClassInfo JSVideoTrack::s_info = { "VideoTrack" , &Base::s_info, nullptr, nullptr, CREATE_METHOD_TABLE(JSVideoTrack) }; |
152 | |
153 | JSVideoTrack::JSVideoTrack(Structure* structure, JSDOMGlobalObject& globalObject, Ref<VideoTrack>&& impl) |
154 | : JSDOMWrapper<VideoTrack>(structure, globalObject, WTFMove(impl)) |
155 | { |
156 | } |
157 | |
158 | void JSVideoTrack::finishCreation(VM& vm) |
159 | { |
160 | Base::finishCreation(vm); |
161 | ASSERT(inherits(vm, info())); |
162 | |
163 | } |
164 | |
165 | JSObject* JSVideoTrack::createPrototype(VM& vm, JSDOMGlobalObject& globalObject) |
166 | { |
167 | return JSVideoTrackPrototype::create(vm, &globalObject, JSVideoTrackPrototype::createStructure(vm, &globalObject, globalObject.objectPrototype())); |
168 | } |
169 | |
170 | JSObject* JSVideoTrack::prototype(VM& vm, JSDOMGlobalObject& globalObject) |
171 | { |
172 | return getDOMPrototype<JSVideoTrack>(vm, globalObject); |
173 | } |
174 | |
175 | JSValue JSVideoTrack::getConstructor(VM& vm, const JSGlobalObject* globalObject) |
176 | { |
177 | return getDOMConstructor<JSVideoTrackConstructor>(vm, *jsCast<const JSDOMGlobalObject*>(globalObject)); |
178 | } |
179 | |
180 | void JSVideoTrack::destroy(JSC::JSCell* cell) |
181 | { |
182 | JSVideoTrack* thisObject = static_cast<JSVideoTrack*>(cell); |
183 | thisObject->JSVideoTrack::~JSVideoTrack(); |
184 | } |
185 | |
186 | template<> inline JSVideoTrack* IDLAttribute<JSVideoTrack>::cast(ExecState& state, EncodedJSValue thisValue) |
187 | { |
188 | return jsDynamicCast<JSVideoTrack*>(state.vm(), JSValue::decode(thisValue)); |
189 | } |
190 | |
191 | EncodedJSValue jsVideoTrackConstructor(ExecState* state, EncodedJSValue thisValue, PropertyName) |
192 | { |
193 | VM& vm = state->vm(); |
194 | auto throwScope = DECLARE_THROW_SCOPE(vm); |
195 | auto* prototype = jsDynamicCast<JSVideoTrackPrototype*>(vm, JSValue::decode(thisValue)); |
196 | if (UNLIKELY(!prototype)) |
197 | return throwVMTypeError(state, throwScope); |
198 | return JSValue::encode(JSVideoTrack::getConstructor(state->vm(), prototype->globalObject())); |
199 | } |
200 | |
201 | bool setJSVideoTrackConstructor(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue) |
202 | { |
203 | VM& vm = state->vm(); |
204 | auto throwScope = DECLARE_THROW_SCOPE(vm); |
205 | auto* prototype = jsDynamicCast<JSVideoTrackPrototype*>(vm, JSValue::decode(thisValue)); |
206 | if (UNLIKELY(!prototype)) { |
207 | throwVMTypeError(state, throwScope); |
208 | return false; |
209 | } |
210 | // Shadowing a built-in constructor |
211 | return prototype->putDirect(vm, vm.propertyNames->constructor, JSValue::decode(encodedValue)); |
212 | } |
213 | |
214 | static inline JSValue jsVideoTrackIdGetter(ExecState& state, JSVideoTrack& thisObject, ThrowScope& throwScope) |
215 | { |
216 | UNUSED_PARAM(throwScope); |
217 | UNUSED_PARAM(state); |
218 | auto& impl = thisObject.wrapped(); |
219 | JSValue result = toJS<IDLDOMString>(state, throwScope, impl.id()); |
220 | return result; |
221 | } |
222 | |
223 | EncodedJSValue jsVideoTrackId(ExecState* state, EncodedJSValue thisValue, PropertyName) |
224 | { |
225 | return IDLAttribute<JSVideoTrack>::get<jsVideoTrackIdGetter, CastedThisErrorBehavior::Assert>(*state, thisValue, "id" ); |
226 | } |
227 | |
228 | static inline JSValue jsVideoTrackKindGetter(ExecState& state, JSVideoTrack& thisObject, ThrowScope& throwScope) |
229 | { |
230 | UNUSED_PARAM(throwScope); |
231 | UNUSED_PARAM(state); |
232 | auto& impl = thisObject.wrapped(); |
233 | JSValue result = toJS<IDLDOMString>(state, throwScope, impl.kind()); |
234 | return result; |
235 | } |
236 | |
237 | EncodedJSValue jsVideoTrackKind(ExecState* state, EncodedJSValue thisValue, PropertyName) |
238 | { |
239 | return IDLAttribute<JSVideoTrack>::get<jsVideoTrackKindGetter, CastedThisErrorBehavior::Assert>(*state, thisValue, "kind" ); |
240 | } |
241 | |
242 | #if ENABLE(MEDIA_SOURCE) |
243 | static inline bool setJSVideoTrackKindSetter(ExecState& state, JSVideoTrack& thisObject, JSValue value, ThrowScope& throwScope) |
244 | { |
245 | UNUSED_PARAM(throwScope); |
246 | auto& impl = thisObject.wrapped(); |
247 | auto nativeValue = convert<IDLDOMString>(state, value); |
248 | RETURN_IF_EXCEPTION(throwScope, false); |
249 | AttributeSetter::call(state, throwScope, [&] { |
250 | return impl.setKind(WTFMove(nativeValue)); |
251 | }); |
252 | return true; |
253 | } |
254 | |
255 | bool setJSVideoTrackKind(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue) |
256 | { |
257 | return IDLAttribute<JSVideoTrack>::set<setJSVideoTrackKindSetter>(*state, thisValue, encodedValue, "kind" ); |
258 | } |
259 | |
260 | #endif |
261 | |
262 | static inline JSValue jsVideoTrackLabelGetter(ExecState& state, JSVideoTrack& thisObject, ThrowScope& throwScope) |
263 | { |
264 | UNUSED_PARAM(throwScope); |
265 | UNUSED_PARAM(state); |
266 | auto& impl = thisObject.wrapped(); |
267 | JSValue result = toJS<IDLDOMString>(state, throwScope, impl.label()); |
268 | return result; |
269 | } |
270 | |
271 | EncodedJSValue jsVideoTrackLabel(ExecState* state, EncodedJSValue thisValue, PropertyName) |
272 | { |
273 | return IDLAttribute<JSVideoTrack>::get<jsVideoTrackLabelGetter, CastedThisErrorBehavior::Assert>(*state, thisValue, "label" ); |
274 | } |
275 | |
276 | static inline JSValue jsVideoTrackLanguageGetter(ExecState& state, JSVideoTrack& thisObject, ThrowScope& throwScope) |
277 | { |
278 | UNUSED_PARAM(throwScope); |
279 | UNUSED_PARAM(state); |
280 | auto& impl = thisObject.wrapped(); |
281 | JSValue result = toJS<IDLDOMString>(state, throwScope, impl.language()); |
282 | return result; |
283 | } |
284 | |
285 | EncodedJSValue jsVideoTrackLanguage(ExecState* state, EncodedJSValue thisValue, PropertyName) |
286 | { |
287 | return IDLAttribute<JSVideoTrack>::get<jsVideoTrackLanguageGetter, CastedThisErrorBehavior::Assert>(*state, thisValue, "language" ); |
288 | } |
289 | |
290 | #if ENABLE(MEDIA_SOURCE) |
291 | static inline bool setJSVideoTrackLanguageSetter(ExecState& state, JSVideoTrack& thisObject, JSValue value, ThrowScope& throwScope) |
292 | { |
293 | UNUSED_PARAM(throwScope); |
294 | auto& impl = thisObject.wrapped(); |
295 | auto nativeValue = convert<IDLDOMString>(state, value); |
296 | RETURN_IF_EXCEPTION(throwScope, false); |
297 | AttributeSetter::call(state, throwScope, [&] { |
298 | return impl.setLanguage(WTFMove(nativeValue)); |
299 | }); |
300 | return true; |
301 | } |
302 | |
303 | bool setJSVideoTrackLanguage(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue) |
304 | { |
305 | return IDLAttribute<JSVideoTrack>::set<setJSVideoTrackLanguageSetter>(*state, thisValue, encodedValue, "language" ); |
306 | } |
307 | |
308 | #endif |
309 | |
310 | static inline JSValue jsVideoTrackSelectedGetter(ExecState& state, JSVideoTrack& thisObject, ThrowScope& throwScope) |
311 | { |
312 | UNUSED_PARAM(throwScope); |
313 | UNUSED_PARAM(state); |
314 | auto& impl = thisObject.wrapped(); |
315 | JSValue result = toJS<IDLBoolean>(state, throwScope, impl.selected()); |
316 | return result; |
317 | } |
318 | |
319 | EncodedJSValue jsVideoTrackSelected(ExecState* state, EncodedJSValue thisValue, PropertyName) |
320 | { |
321 | return IDLAttribute<JSVideoTrack>::get<jsVideoTrackSelectedGetter, CastedThisErrorBehavior::Assert>(*state, thisValue, "selected" ); |
322 | } |
323 | |
324 | static inline bool setJSVideoTrackSelectedSetter(ExecState& state, JSVideoTrack& thisObject, JSValue value, ThrowScope& throwScope) |
325 | { |
326 | UNUSED_PARAM(throwScope); |
327 | auto& impl = thisObject.wrapped(); |
328 | auto nativeValue = convert<IDLBoolean>(state, value); |
329 | RETURN_IF_EXCEPTION(throwScope, false); |
330 | AttributeSetter::call(state, throwScope, [&] { |
331 | return impl.setSelected(WTFMove(nativeValue)); |
332 | }); |
333 | return true; |
334 | } |
335 | |
336 | bool setJSVideoTrackSelected(ExecState* state, EncodedJSValue thisValue, EncodedJSValue encodedValue) |
337 | { |
338 | return IDLAttribute<JSVideoTrack>::set<setJSVideoTrackSelectedSetter>(*state, thisValue, encodedValue, "selected" ); |
339 | } |
340 | |
341 | #if ENABLE(MEDIA_SOURCE) && ENABLE(VIDEO_TRACK) |
342 | static inline JSValue jsVideoTrackSourceBufferGetter(ExecState& state, JSVideoTrack& thisObject, ThrowScope& throwScope) |
343 | { |
344 | UNUSED_PARAM(throwScope); |
345 | UNUSED_PARAM(state); |
346 | auto& impl = thisObject.wrapped(); |
347 | JSValue result = toJS<IDLNullable<IDLInterface<SourceBuffer>>>(state, *thisObject.globalObject(), throwScope, WebCore::VideoTrackMediaSource::sourceBuffer(impl)); |
348 | return result; |
349 | } |
350 | |
351 | EncodedJSValue jsVideoTrackSourceBuffer(ExecState* state, EncodedJSValue thisValue, PropertyName) |
352 | { |
353 | return IDLAttribute<JSVideoTrack>::get<jsVideoTrackSourceBufferGetter, CastedThisErrorBehavior::Assert>(*state, thisValue, "sourceBuffer" ); |
354 | } |
355 | |
356 | #endif |
357 | |
358 | void JSVideoTrack::visitChildren(JSCell* cell, SlotVisitor& visitor) |
359 | { |
360 | auto* thisObject = jsCast<JSVideoTrack*>(cell); |
361 | ASSERT_GC_OBJECT_INHERITS(thisObject, info()); |
362 | Base::visitChildren(thisObject, visitor); |
363 | thisObject->visitAdditionalChildren(visitor); |
364 | } |
365 | |
366 | void JSVideoTrack::visitOutputConstraints(JSCell* cell, SlotVisitor& visitor) |
367 | { |
368 | auto* thisObject = jsCast<JSVideoTrack*>(cell); |
369 | ASSERT_GC_OBJECT_INHERITS(thisObject, info()); |
370 | Base::visitOutputConstraints(thisObject, visitor); |
371 | thisObject->visitAdditionalChildren(visitor); |
372 | } |
373 | |
374 | void JSVideoTrack::heapSnapshot(JSCell* cell, HeapSnapshotBuilder& builder) |
375 | { |
376 | auto* thisObject = jsCast<JSVideoTrack*>(cell); |
377 | builder.setWrappedObjectForCell(cell, &thisObject->wrapped()); |
378 | if (thisObject->scriptExecutionContext()) |
379 | builder.setLabelForCell(cell, "url " + thisObject->scriptExecutionContext()->url().string()); |
380 | Base::heapSnapshot(cell, builder); |
381 | } |
382 | |
383 | bool JSVideoTrackOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, SlotVisitor& visitor, const char** reason) |
384 | { |
385 | auto* jsVideoTrack = jsCast<JSVideoTrack*>(handle.slot()->asCell()); |
386 | Element* element = WTF::getPtr(jsVideoTrack->wrapped().element()); |
387 | if (!element) |
388 | return false; |
389 | if (UNLIKELY(reason)) |
390 | *reason = "Reachable from VideoTrackOwner" ; |
391 | void* root = WebCore::root(element); |
392 | return visitor.containsOpaqueRoot(root); |
393 | } |
394 | |
395 | void JSVideoTrackOwner::finalize(JSC::Handle<JSC::Unknown> handle, void* context) |
396 | { |
397 | auto* jsVideoTrack = static_cast<JSVideoTrack*>(handle.slot()->asCell()); |
398 | auto& world = *static_cast<DOMWrapperWorld*>(context); |
399 | uncacheWrapper(world, &jsVideoTrack->wrapped(), jsVideoTrack); |
400 | } |
401 | |
402 | #if ENABLE(BINDING_INTEGRITY) |
403 | #if PLATFORM(WIN) |
404 | #pragma warning(disable: 4483) |
405 | extern "C" { extern void (*const __identifier("??_7VideoTrack@WebCore@@6B@" )[])(); } |
406 | #else |
407 | extern "C" { extern void* _ZTVN7WebCore10VideoTrackE[]; } |
408 | #endif |
409 | #endif |
410 | |
411 | JSC::JSValue toJSNewlyCreated(JSC::ExecState*, JSDOMGlobalObject* globalObject, Ref<VideoTrack>&& impl) |
412 | { |
413 | |
414 | #if ENABLE(BINDING_INTEGRITY) |
415 | void* actualVTablePointer = *(reinterpret_cast<void**>(impl.ptr())); |
416 | #if PLATFORM(WIN) |
417 | void* expectedVTablePointer = WTF_PREPARE_VTBL_POINTER_FOR_INSPECTION(__identifier("??_7VideoTrack@WebCore@@6B@" )); |
418 | #else |
419 | void* expectedVTablePointer = WTF_PREPARE_VTBL_POINTER_FOR_INSPECTION(&_ZTVN7WebCore10VideoTrackE[2]); |
420 | #endif |
421 | |
422 | // If this fails VideoTrack does not have a vtable, so you need to add the |
423 | // ImplementationLacksVTable attribute to the interface definition |
424 | static_assert(std::is_polymorphic<VideoTrack>::value, "VideoTrack is not polymorphic" ); |
425 | |
426 | // If you hit this assertion you either have a use after free bug, or |
427 | // VideoTrack has subclasses. If VideoTrack has subclasses that get passed |
428 | // to toJS() we currently require VideoTrack you to opt out of binding hardening |
429 | // by adding the SkipVTableValidation attribute to the interface IDL definition |
430 | RELEASE_ASSERT(actualVTablePointer == expectedVTablePointer); |
431 | #endif |
432 | return createWrapper<VideoTrack>(globalObject, WTFMove(impl)); |
433 | } |
434 | |
435 | JSC::JSValue toJS(JSC::ExecState* state, JSDOMGlobalObject* globalObject, VideoTrack& impl) |
436 | { |
437 | return wrap(state, globalObject, impl); |
438 | } |
439 | |
440 | VideoTrack* JSVideoTrack::toWrapped(JSC::VM& vm, JSC::JSValue value) |
441 | { |
442 | if (auto* wrapper = jsDynamicCast<JSVideoTrack*>(vm, value)) |
443 | return &wrapper->wrapped(); |
444 | return nullptr; |
445 | } |
446 | |
447 | } |
448 | |
449 | #endif // ENABLE(VIDEO_TRACK) |
450 | |