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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "modules/serviceworkers/ForeignFetchEvent.h"
#include "bindings/core/v8/ToV8.h"
#include "bindings/core/v8/V8HiddenValue.h"
#include "modules/fetch/Request.h"
#include "modules/serviceworkers/ServiceWorkerGlobalScope.h"
#include "wtf/RefPtr.h"
namespace blink {
ForeignFetchEvent* ForeignFetchEvent::create(
ScriptState* scriptState,
const AtomicString& type,
const ForeignFetchEventInit& initializer) {
return new ForeignFetchEvent(scriptState, type, initializer, nullptr,
nullptr);
}
ForeignFetchEvent* ForeignFetchEvent::create(
ScriptState* scriptState,
const AtomicString& type,
const ForeignFetchEventInit& initializer,
ForeignFetchRespondWithObserver* respondWithObserver,
WaitUntilObserver* waitUntilObserver) {
return new ForeignFetchEvent(scriptState, type, initializer,
respondWithObserver, waitUntilObserver);
}
Request* ForeignFetchEvent::request() const {
return m_request;
}
String ForeignFetchEvent::origin() const {
return m_origin;
}
void ForeignFetchEvent::respondWith(ScriptState* scriptState,
ScriptPromise scriptPromise,
ExceptionState& exceptionState) {
stopImmediatePropagation();
if (m_observer)
m_observer->respondWith(scriptState, scriptPromise, exceptionState);
}
const AtomicString& ForeignFetchEvent::interfaceName() const {
return EventNames::ForeignFetchEvent;
}
ForeignFetchEvent::ForeignFetchEvent(
ScriptState* scriptState,
const AtomicString& type,
const ForeignFetchEventInit& initializer,
ForeignFetchRespondWithObserver* respondWithObserver,
WaitUntilObserver* waitUntilObserver)
: ExtendableEvent(type, initializer, waitUntilObserver),
m_observer(respondWithObserver) {
if (initializer.hasOrigin())
m_origin = initializer.origin();
if (initializer.hasRequest()) {
m_request = initializer.request();
ScriptState::Scope scope(scriptState);
m_request = initializer.request();
v8::Local<v8::Value> request = ToV8(m_request, scriptState);
v8::Local<v8::Value> event = ToV8(this, scriptState);
if (event.IsEmpty()) {
// |toV8| can return an empty handle when the worker is terminating.
// We don't want the renderer to crash in such cases.
// TODO(yhirano): Replace this branch with an assertion when the
// graceful shutdown mechanism is introduced.
return;
}
DCHECK(event->IsObject());
// Sets a hidden value in order to teach V8 the dependency from
// the event to the request.
V8HiddenValue::setHiddenValue(
scriptState, event.As<v8::Object>(),
V8HiddenValue::requestInFetchEvent(scriptState->isolate()), request);
// From the same reason as above, setHiddenValue can return false.
// TODO(yhirano): Add an assertion that it returns true once the
// graceful shutdown mechanism is introduced.
}
}
DEFINE_TRACE(ForeignFetchEvent) {
visitor->trace(m_observer);
visitor->trace(m_request);
ExtendableEvent::trace(visitor);
}
} // namespace blink
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