src/third_party/WebKit/Source/bindings/v8/ScriptPromiseResolver.cpp

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  30
  31 #include "config.h"
  32 #include "bindings/v8/ScriptPromiseResolver.h"
  33
  34 #include "RuntimeEnabledFeatures.h"
  35 #include "bindings/v8/ScriptState.h"
  36 #include "bindings/v8/ScriptValue.h"
  37 #include "bindings/v8/V8Binding.h"
  38 #include "bindings/v8/V8DOMWrapper.h"
  39 #include "bindings/v8/custom/V8PromiseCustom.h"
  40
  41 #include <v8.h>
  42
  43 namespace WebCore {
  44
  45 ScriptPromiseResolver::ScriptPromiseResolver(ExecutionContext* context)
  46     : m_isolate(toIsolate(context))
  47 {
  48     ASSERT(context);
  49     v8::Isolate* isolate = toIsolate(context);
  50     ASSERT(isolate->InContext());
  51     if (RuntimeEnabledFeatures::scriptPromiseOnV8PromiseEnabled()) {
  52         m_resolver = ScriptValue(v8::Promise::Resolver::New(isolate), isolate);
  53     } else {
  54         v8::Handle<v8::Context> v8Context = toV8Context(context, DOMWrapperWorld::current(isolate));
  55         v8::Handle<v8::Object> creationContext = v8Context.IsEmpty() ? v8::Object::New(isolate) : v8Context->Global();
  56         m_promise = ScriptPromise(V8PromiseCustom::createPromise(creationContext, isolate), isolate);
  57     }
  58 }
  59
  60 ScriptPromiseResolver::ScriptPromiseResolver(v8::Isolate* isolate)
  61     : m_isolate(isolate)
  62 {
  63     ASSERT(isolate->InContext());
  64     if (RuntimeEnabledFeatures::scriptPromiseOnV8PromiseEnabled()) {
  65         m_resolver = ScriptValue(v8::Promise::Resolver::New(isolate), isolate);
  66     } else {
  67         m_promise = ScriptPromise(V8PromiseCustom::createPromise(v8::Object::New(isolate), isolate), isolate);
  68     }
  69 }
  70
  71 ScriptPromiseResolver::~ScriptPromiseResolver()
  72 {
  73     // We don't call "reject" here because it requires a caller
  74     // to be in a v8 context.
  75
  76     m_promise.clear();
  77     m_resolver.clear();
  78 }
  79
  80 ScriptPromise ScriptPromiseResolver::promise()
  81 {
  82     ASSERT(m_isolate->InContext());
  83     if (!m_resolver.hasNoValue()) {
  84         v8::Local<v8::Promise::Resolver> v8Resolver = m_resolver.v8Value().As<v8::Promise::Resolver>();
  85         return ScriptPromise(v8Resolver->GetPromise(), m_isolate);
  86     }
  87     return m_promise;
  88 }
  89
  90 PassRefPtr<ScriptPromiseResolver> ScriptPromiseResolver::create(ExecutionContext* context)
  91 {
  92     ASSERT(context);
  93     ASSERT(toIsolate(context)->InContext());
  94     return adoptRef(new ScriptPromiseResolver(context));
  95 }
  96
  97 PassRefPtr<ScriptPromiseResolver> ScriptPromiseResolver::create(v8::Isolate* isolate)
  98 {
  99     ASSERT(isolate->InContext());
 100     return adoptRef(new ScriptPromiseResolver(isolate));
 101 }
 102
 103 void ScriptPromiseResolver::resolve(v8::Handle<v8::Value> value)
 104 {
 105     ASSERT(m_isolate->InContext());
 106     if (!m_resolver.hasNoValue()) {
 107         m_resolver.v8Value().As<v8::Promise::Resolver>()->Resolve(value);
 108     } else if (!m_promise.hasNoValue()) {
 109         v8::Local<v8::Object> promise = m_promise.v8Value().As<v8::Object>();
 110         ASSERT(V8PromiseCustom::isPromise(promise, m_isolate));
 111         V8PromiseCustom::resolve(promise, value, m_isolate);
 112     }
 113     m_promise.clear();
 114     m_resolver.clear();
 115 }
 116
 117 void ScriptPromiseResolver::reject(v8::Handle<v8::Value> value)
 118 {
 119     ASSERT(m_isolate->InContext());
 120     if (!m_resolver.hasNoValue()) {
 121         m_resolver.v8Value().As<v8::Promise::Resolver>()->Reject(value);
 122     } else if (!m_promise.hasNoValue()) {
 123         v8::Local<v8::Object> promise = m_promise.v8Value().As<v8::Object>();
 124         ASSERT(V8PromiseCustom::isPromise(promise, m_isolate));
 125         V8PromiseCustom::reject(promise, value, m_isolate);
 126     }
 127     m_promise.clear();
 128     m_resolver.clear();
 129 }
 130
 131 void ScriptPromiseResolver::resolve(ScriptValue value)
 132 {
 133     ASSERT(m_isolate->InContext());
 134     resolve(value.v8Value());
 135 }
 136
 137 void ScriptPromiseResolver::reject(ScriptValue value)
 138 {
 139     ASSERT(m_isolate->InContext());
 140     reject(value.v8Value());
 141 }
 142
 143 } // namespace WebCore