| /* |
| * 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. |
| */ |
| |
| #ifndef ScriptPromise_h |
| #define ScriptPromise_h |
| |
| #include "bindings/core/v8/ScriptFunction.h" |
| #include "bindings/core/v8/ScriptValue.h" |
| #include "platform/heap/Handle.h" |
| #include "wtf/PassRefPtr.h" |
| #include <v8.h> |
| |
| namespace blink { |
| |
| class DOMException; |
| |
| // ScriptPromise is the class for representing Promise values in C++ world. |
| // ScriptPromise holds a Promise. |
| // So holding a ScriptPromise as a member variable in DOM object causes |
| // memory leaks since it has a reference from C++ to V8. |
| // |
| class ScriptPromise final { |
| public: |
| // Constructs an empty promise. |
| ScriptPromise() { } |
| |
| // Constructs a ScriptPromise from |promise|. |
| // If |promise| is not a Promise object, throws a v8 TypeError. |
| ScriptPromise(ScriptState*, v8::Handle<v8::Value> promise); |
| |
| ScriptPromise then(v8::Handle<v8::Function> onFulfilled, v8::Handle<v8::Function> onRejected = v8::Handle<v8::Function>()); |
| |
| bool isObject() const |
| { |
| return m_promise.isObject(); |
| } |
| |
| bool isNull() const |
| { |
| return m_promise.isNull(); |
| } |
| |
| bool isUndefinedOrNull() const |
| { |
| return m_promise.isUndefined() || m_promise.isNull(); |
| } |
| |
| v8::Handle<v8::Value> v8Value() const |
| { |
| return m_promise.v8Value(); |
| } |
| |
| v8::Isolate* isolate() const |
| { |
| return m_promise.isolate(); |
| } |
| |
| bool isEmpty() const |
| { |
| return m_promise.isEmpty(); |
| } |
| |
| void clear() |
| { |
| m_promise.clear(); |
| } |
| |
| bool operator==(const ScriptPromise& value) const |
| { |
| return m_promise == value.m_promise; |
| } |
| |
| bool operator!=(const ScriptPromise& value) const |
| { |
| return !operator==(value); |
| } |
| |
| // Constructs and returns a ScriptPromise from |value|. |
| // if |value| is not a Promise object, returns a Promise object |
| // resolved with |value|. |
| // Returns |value| itself if it is a Promise. |
| static ScriptPromise cast(ScriptState*, const ScriptValue& /*value*/); |
| static ScriptPromise cast(ScriptState*, v8::Handle<v8::Value> /*value*/); |
| |
| static ScriptPromise reject(ScriptState*, const ScriptValue&); |
| static ScriptPromise reject(ScriptState*, v8::Handle<v8::Value>); |
| |
| static ScriptPromise rejectWithDOMException(ScriptState*, PassRefPtrWillBeRawPtr<DOMException>); |
| |
| static v8::Local<v8::Promise> rejectRaw(v8::Isolate*, v8::Handle<v8::Value>); |
| |
| // This is a utility class intended to be used internally. |
| // ScriptPromiseResolver is for general purpose. |
| class InternalResolver final { |
| public: |
| explicit InternalResolver(ScriptState*); |
| v8::Local<v8::Promise> v8Promise() const; |
| ScriptPromise promise() const; |
| void resolve(v8::Local<v8::Value>); |
| void reject(v8::Local<v8::Value>); |
| void clear() { m_resolver.clear(); } |
| |
| private: |
| ScriptValue m_resolver; |
| }; |
| |
| private: |
| RefPtr<ScriptState> m_scriptState; |
| ScriptValue m_promise; |
| }; |
| |
| } // namespace blink |
| |
| |
| #endif // ScriptPromise_h |