| /* |
| * Copyright (C) 2013 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "bindings/core/v8/ScriptPromise.h" |
| |
| #include "bindings/core/v8/ExceptionMessages.h" |
| #include "bindings/core/v8/ExceptionState.h" |
| #include "bindings/core/v8/V8Binding.h" |
| #include "bindings/core/v8/V8ThrowException.h" |
| #include "core/dom/DOMException.h" |
| |
| #include <v8.h> |
| |
| namespace blink { |
| |
| namespace { |
| |
| struct WithScriptState { |
| // Used by ToV8Value<WithScriptState, ScriptState*>. |
| static v8::Handle<v8::Object> getCreationContext(ScriptState* scriptState) |
| { |
| return scriptState->context()->Global(); |
| } |
| }; |
| |
| } // namespace |
| |
| ScriptPromise::InternalResolver::InternalResolver(ScriptState* scriptState) |
| : m_resolver(scriptState, v8::Promise::Resolver::New(scriptState->isolate())) { } |
| |
| v8::Local<v8::Promise> ScriptPromise::InternalResolver::v8Promise() const |
| { |
| if (m_resolver.isEmpty()) |
| return v8::Local<v8::Promise>(); |
| return m_resolver.v8Value().As<v8::Promise::Resolver>()->GetPromise(); |
| } |
| |
| ScriptPromise ScriptPromise::InternalResolver::promise() const |
| { |
| if (m_resolver.isEmpty()) |
| return ScriptPromise(); |
| return ScriptPromise(m_resolver.scriptState(), v8Promise()); |
| } |
| |
| void ScriptPromise::InternalResolver::resolve(v8::Local<v8::Value> value) |
| { |
| if (m_resolver.isEmpty()) |
| return; |
| m_resolver.v8Value().As<v8::Promise::Resolver>()->Resolve(value); |
| clear(); |
| } |
| |
| void ScriptPromise::InternalResolver::reject(v8::Local<v8::Value> value) |
| { |
| if (m_resolver.isEmpty()) |
| return; |
| m_resolver.v8Value().As<v8::Promise::Resolver>()->Reject(value); |
| clear(); |
| } |
| |
| ScriptPromise::ScriptPromise(ScriptState* scriptState, v8::Handle<v8::Value> value) |
| : m_scriptState(scriptState) |
| { |
| if (value.IsEmpty()) |
| return; |
| |
| if (!value->IsPromise()) { |
| m_promise = ScriptValue(scriptState, v8::Handle<v8::Value>()); |
| V8ThrowException::throwTypeError("the given value is not a Promise", scriptState->isolate()); |
| return; |
| } |
| m_promise = ScriptValue(scriptState, value); |
| } |
| |
| ScriptPromise ScriptPromise::then(v8::Handle<v8::Function> onFulfilled, v8::Handle<v8::Function> onRejected) |
| { |
| if (m_promise.isEmpty()) |
| return ScriptPromise(); |
| |
| v8::Local<v8::Object> promise = m_promise.v8Value().As<v8::Object>(); |
| |
| ASSERT(promise->IsPromise()); |
| // Return this Promise if no handlers are given. |
| // In fact it is not the exact bahavior of Promise.prototype.then |
| // but that is not a problem in this case. |
| v8::Local<v8::Promise> resultPromise = promise.As<v8::Promise>(); |
| if (!onFulfilled.IsEmpty()) { |
| resultPromise = resultPromise->Then(onFulfilled); |
| if (resultPromise.IsEmpty()) { |
| // v8::Promise::Then may return an empty value, for example when |
| // the stack is exhausted. |
| return ScriptPromise(); |
| } |
| } |
| if (!onRejected.IsEmpty()) |
| resultPromise = resultPromise->Catch(onRejected); |
| |
| return ScriptPromise(m_scriptState.get(), resultPromise); |
| } |
| |
| ScriptPromise ScriptPromise::cast(ScriptState* scriptState, const ScriptValue& value) |
| { |
| return ScriptPromise::cast(scriptState, value.v8Value()); |
| } |
| |
| ScriptPromise ScriptPromise::cast(ScriptState* scriptState, v8::Handle<v8::Value> value) |
| { |
| if (value.IsEmpty()) |
| return ScriptPromise(); |
| if (value->IsPromise()) { |
| return ScriptPromise(scriptState, value); |
| } |
| InternalResolver resolver(scriptState); |
| ScriptPromise promise = resolver.promise(); |
| resolver.resolve(value); |
| return promise; |
| } |
| |
| ScriptPromise ScriptPromise::reject(ScriptState* scriptState, const ScriptValue& value) |
| { |
| return ScriptPromise::reject(scriptState, value.v8Value()); |
| } |
| |
| ScriptPromise ScriptPromise::reject(ScriptState* scriptState, v8::Handle<v8::Value> value) |
| { |
| if (value.IsEmpty()) |
| return ScriptPromise(); |
| InternalResolver resolver(scriptState); |
| ScriptPromise promise = resolver.promise(); |
| resolver.reject(value); |
| return promise; |
| } |
| |
| ScriptPromise ScriptPromise::rejectWithDOMException(ScriptState* scriptState, PassRefPtrWillBeRawPtr<DOMException> exception) |
| { |
| ASSERT(scriptState->isolate()->InContext()); |
| return reject(scriptState, V8ValueTraits<PassRefPtrWillBeRawPtr<DOMException> >::toV8Value(exception, scriptState->context()->Global(), scriptState->isolate())); |
| } |
| |
| v8::Local<v8::Promise> ScriptPromise::rejectRaw(v8::Isolate* isolate, v8::Handle<v8::Value> value) |
| { |
| if (value.IsEmpty()) |
| return v8::Local<v8::Promise>(); |
| v8::Local<v8::Promise::Resolver> resolver = v8::Promise::Resolver::New(isolate); |
| v8::Local<v8::Promise> promise = resolver->GetPromise(); |
| resolver->Reject(value); |
| return promise; |
| } |
| |
| } // namespace blink |