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1 // Copyright 2015 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "config.h" | |
6 #include "bindings/core/v8/V8PerformanceObserver.h" | |
7 | |
8 #include "bindings/core/v8/ExceptionMessages.h" | |
9 #include "bindings/core/v8/ExceptionState.h" | |
10 #include "bindings/core/v8/V8Binding.h" | |
11 #include "bindings/core/v8/V8DOMWrapper.h" | |
12 #include "bindings/core/v8/V8GCController.h" | |
13 #include "bindings/core/v8/V8Performance.h" | |
14 #include "bindings/core/v8/V8PerformanceObserverCallback.h" | |
15 #include "core/timing/DOMWindowPerformance.h" | |
16 #include "core/timing/PerformanceObserver.h" | |
17 | |
18 namespace blink { | |
19 | |
20 void V8PerformanceObserver::constructorCustom(const v8::FunctionCallbackInfo<v8: :Value>& info) | |
21 { | |
22 if (UNLIKELY(info.Length() < 1)) { | |
23 V8ThrowException::throwException(createMinimumArityTypeErrorForMethod(in fo.GetIsolate(), "createPerformanceObserver", "Performance", 1, info.Length()), info.GetIsolate()); | |
24 return; | |
25 } | |
26 | |
27 v8::Local<v8::Object> wrapper = info.Holder(); | |
28 | |
29 Performance* performance = nullptr; | |
30 DOMWindow* window = toDOMWindow(wrapper->CreationContext()); | |
31 if (window) | |
esprehn
2015/09/09 22:41:40
Throw if there's no window? There should always be
MikeB
2015/09/10 19:53:01
Done.
| |
32 performance = DOMWindowPerformance::performance(*window); | |
esprehn
2015/09/09 22:41:40
ASSERT(performance) ?
MikeB
2015/09/10 19:53:01
Done.
| |
33 | |
34 PerformanceObserverCallback* callback; | |
35 { | |
36 if (info.Length() <= 0 || !info[0]->IsFunction()) { | |
37 V8ThrowException::throwTypeError(info.GetIsolate(), ExceptionMessage s::failedToExecute("createPerformanceObserver", "Performance", "The callback pro vided as parameter 1 is not a function.")); | |
38 return; | |
39 } | |
40 callback = V8PerformanceObserverCallback::create(v8::Local<v8::Function> ::Cast(info[0]), wrapper, ScriptState::current(info.GetIsolate())); | |
41 } | |
42 PerformanceObserver* observer = PerformanceObserver::create(performance, cal lback); | |
43 | |
44 v8SetReturnValue(info, V8DOMWrapper::associateObjectWithWrapper(info.GetIsol ate(), observer, &wrapperTypeInfo, wrapper)); | |
45 } | |
46 | |
47 } // namespace blink | |
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