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1 /* | 1 /* |
2 * Copyright (C) 2013 Google Inc. All rights reserved. | 2 * Copyright (C) 2013 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 */ | 29 */ |
30 | 30 |
31 #ifndef CallbackPromiseAdapter_h | 31 #ifndef CallbackPromiseAdapter_h |
32 #define CallbackPromiseAdapter_h | 32 #define CallbackPromiseAdapter_h |
33 | 33 |
34 #include "bindings/v8/NewScriptState.h" | 34 #include "bindings/v8/ScriptPromiseResolverWithContext.h" |
35 #include "bindings/v8/ScriptPromiseResolver.h" | |
36 #include "public/platform/WebCallbacks.h" | 35 #include "public/platform/WebCallbacks.h" |
37 | 36 |
38 namespace WebCore { | 37 namespace WebCore { |
39 | 38 |
40 // This class provides an easy way to convert from a Script-exposed | 39 // This class provides an easy way to convert from a Script-exposed |
41 // class (i.e. a class that has a toV8() overload) that uses Promises | 40 // class (i.e. a class that has a toV8() overload) that uses Promises |
42 // to a WebKit API class that uses WebCallbacks. You can define | 41 // to a WebKit API class that uses WebCallbacks. You can define |
43 // seperate Success and Error classes, but this example just uses one | 42 // seperate Success and Error classes, but this example just uses one |
44 // object for both. | 43 // object for both. |
45 // | 44 // |
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57 // | 56 // |
58 // // call signature: callSomeMethod(WebCallbacks<MyClass, MyClass>* callback
s) | 57 // // call signature: callSomeMethod(WebCallbacks<MyClass, MyClass>* callback
s) |
59 // webObject->callSomeMethod(new CallbackPromiseAdapter<MyClass, MyClass>(res
olver, scriptExecutionContext)); | 58 // webObject->callSomeMethod(new CallbackPromiseAdapter<MyClass, MyClass>(res
olver, scriptExecutionContext)); |
60 // | 59 // |
61 // Note that this class does not manage its own lifetime. In this | 60 // Note that this class does not manage its own lifetime. In this |
62 // example that ownership of the WebCallbacks instance is being passed | 61 // example that ownership of the WebCallbacks instance is being passed |
63 // in and it is up to the callee to free the WebCallbacks instace. | 62 // in and it is up to the callee to free the WebCallbacks instace. |
64 template<typename S, typename T> | 63 template<typename S, typename T> |
65 class CallbackPromiseAdapter FINAL : public blink::WebCallbacks<typename S::WebT
ype, typename T::WebType> { | 64 class CallbackPromiseAdapter FINAL : public blink::WebCallbacks<typename S::WebT
ype, typename T::WebType> { |
66 public: | 65 public: |
67 CallbackPromiseAdapter(PassRefPtr<ScriptPromiseResolver> resolver, Execution
Context* context) | 66 CallbackPromiseAdapter(PassRefPtr<ScriptPromiseResolverWithContext> resolver
) |
68 : m_resolver(resolver) | 67 : m_resolver(resolver) |
69 , m_scriptState(NewScriptState::current(toIsolate(context))) | |
70 { | 68 { |
71 } | 69 } |
72 virtual ~CallbackPromiseAdapter() { } | 70 virtual ~CallbackPromiseAdapter() { } |
73 | 71 |
74 virtual void onSuccess(typename S::WebType* result) OVERRIDE | 72 virtual void onSuccess(typename S::WebType* result) OVERRIDE |
75 { | 73 { |
76 NewScriptState::Scope scope(m_scriptState.get()); | 74 v8::HandleScope handleScope(m_resolver->scriptState()->isolate()); |
77 m_resolver->resolve(S::from(m_scriptState.get(), result)); | 75 m_resolver->resolve(S::from(m_resolver->scriptState(), result)); |
78 } | 76 } |
79 virtual void onError(typename T::WebType* error) OVERRIDE | 77 virtual void onError(typename T::WebType* error) OVERRIDE |
80 { | 78 { |
81 NewScriptState::Scope scope(m_scriptState.get()); | 79 v8::HandleScope handleScope(m_resolver->scriptState()->isolate()); |
82 m_resolver->reject(T::from(m_scriptState.get(), error)); | 80 m_resolver->reject(T::from(m_resolver->scriptState(), error)); |
83 } | 81 } |
84 private: | 82 private: |
85 RefPtr<ScriptPromiseResolver> m_resolver; | 83 RefPtr<ScriptPromiseResolverWithContext> m_resolver; |
86 RefPtr<NewScriptState> m_scriptState; | |
87 WTF_MAKE_NONCOPYABLE(CallbackPromiseAdapter); | 84 WTF_MAKE_NONCOPYABLE(CallbackPromiseAdapter); |
88 }; | 85 }; |
89 | 86 |
90 } // namespace WebCore | 87 } // namespace WebCore |
91 | 88 |
92 #endif | 89 #endif |
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