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// Copyright 2014 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/WaitUntilObserver.h"
#include "bindings/core/v8/ScriptFunction.h"
#include "bindings/core/v8/ScriptPromise.h"
#include "bindings/core/v8/ScriptValue.h"
#include "bindings/core/v8/V8Binding.h"
#include "core/dom/ExceptionCode.h"
#include "core/dom/ExecutionContext.h"
#include "modules/serviceworkers/ServiceWorkerGlobalScope.h"
#include "platform/LayoutTestSupport.h"
#include "public/platform/Platform.h"
#include "public/platform/modules/serviceworker/WebServiceWorkerEventResult.h"
#include "wtf/Assertions.h"
#include <v8.h>
namespace blink {
namespace {
// Timeout before a service worker that was given window interaction
// permission loses them. The unit is seconds.
const unsigned kWindowInteractionTimeout = 10;
const unsigned kWindowInteractionTimeoutForTest = 1;
unsigned windowInteractionTimeout() {
return LayoutTestSupport::isRunningLayoutTest()
? kWindowInteractionTimeoutForTest
: kWindowInteractionTimeout;
}
} // anonymous namespace
class WaitUntilObserver::ThenFunction final : public ScriptFunction {
public:
enum ResolveType {
Fulfilled,
Rejected,
};
static v8::Local<v8::Function> createFunction(ScriptState* scriptState,
WaitUntilObserver* observer,
ResolveType type) {
ThenFunction* self = new ThenFunction(scriptState, observer, type);
return self->bindToV8Function();
}
DEFINE_INLINE_VIRTUAL_TRACE() {
visitor->trace(m_observer);
ScriptFunction::trace(visitor);
}
private:
ThenFunction(ScriptState* scriptState,
WaitUntilObserver* observer,
ResolveType type)
: ScriptFunction(scriptState),
m_observer(observer),
m_resolveType(type) {}
ScriptValue call(ScriptValue value) override {
ASSERT(m_observer);
ASSERT(m_resolveType == Fulfilled || m_resolveType == Rejected);
if (m_resolveType == Rejected) {
m_observer->reportError(value);
value =
ScriptPromise::reject(value.getScriptState(), value).getScriptValue();
}
m_observer->decrementPendingActivity();
m_observer = nullptr;
return value;
}
Member<WaitUntilObserver> m_observer;
ResolveType m_resolveType;
};
WaitUntilObserver* WaitUntilObserver::create(ExecutionContext* context,
EventType type,
int eventID) {
return new WaitUntilObserver(context, type, eventID);
}
void WaitUntilObserver::willDispatchEvent() {
m_eventDispatchTime = WTF::currentTime();
// When handling a notificationclick event, we want to allow one window to
// be focused or opened. These calls are allowed between the call to
// willDispatchEvent() and the last call to decrementPendingActivity(). If
// waitUntil() isn't called, that means between willDispatchEvent() and
// didDispatchEvent().
if (m_type == NotificationClick)
m_executionContext->allowWindowInteraction();
incrementPendingActivity();
}
void WaitUntilObserver::didDispatchEvent(bool errorOccurred) {
if (errorOccurred)
m_hasError = true;
decrementPendingActivity();
m_eventDispatched = true;
}
void WaitUntilObserver::waitUntil(ScriptState* scriptState,
ScriptPromise scriptPromise,
ExceptionState& exceptionState) {
if (m_eventDispatched) {
exceptionState.throwDOMException(InvalidStateError,
"The event handler is already finished.");
return;
}
if (!m_executionContext)
return;
// When handling a notificationclick event, we want to allow one window to
// be focused or opened. See comments in ::willDispatchEvent(). When
// waitUntil() is being used, opening or closing a window must happen in a
// timeframe specified by windowInteractionTimeout(), otherwise the calls
// will fail.
if (m_type == NotificationClick)
m_consumeWindowInteractionTimer.startOneShot(windowInteractionTimeout(),
BLINK_FROM_HERE);
incrementPendingActivity();
scriptPromise.then(
ThenFunction::createFunction(scriptState, this, ThenFunction::Fulfilled),
ThenFunction::createFunction(scriptState, this, ThenFunction::Rejected));
}
WaitUntilObserver::WaitUntilObserver(ExecutionContext* context,
EventType type,
int eventID)
: m_executionContext(context),
m_type(type),
m_eventID(eventID),
m_consumeWindowInteractionTimer(
Platform::current()->currentThread()->getWebTaskRunner(),
this,
&WaitUntilObserver::consumeWindowInteraction) {}
void WaitUntilObserver::reportError(const ScriptValue& value) {
// FIXME: Propagate error message to the client for onerror handling.
NOTIMPLEMENTED();
m_hasError = true;
}
void WaitUntilObserver::incrementPendingActivity() {
++m_pendingActivity;
}
void WaitUntilObserver::decrementPendingActivity() {
ASSERT(m_pendingActivity > 0);
if (!m_executionContext || (!m_hasError && --m_pendingActivity))
return;
ServiceWorkerGlobalScopeClient* client =
ServiceWorkerGlobalScopeClient::from(m_executionContext);
WebServiceWorkerEventResult result =
m_hasError ? WebServiceWorkerEventResultRejected
: WebServiceWorkerEventResultCompleted;
switch (m_type) {
case Activate:
client->didHandleActivateEvent(m_eventID, result, m_eventDispatchTime);
break;
case Fetch:
client->didHandleFetchEvent(m_eventID, result, m_eventDispatchTime);
break;
case Install:
client->didHandleInstallEvent(m_eventID, result, m_eventDispatchTime);
break;
case Message:
client->didHandleExtendableMessageEvent(m_eventID, result,
m_eventDispatchTime);
break;
case NotificationClick:
client->didHandleNotificationClickEvent(m_eventID, result,
m_eventDispatchTime);
m_consumeWindowInteractionTimer.stop();
consumeWindowInteraction(nullptr);
break;
case NotificationClose:
client->didHandleNotificationCloseEvent(m_eventID, result,
m_eventDispatchTime);
break;
case Push:
client->didHandlePushEvent(m_eventID, result, m_eventDispatchTime);
break;
case Sync:
client->didHandleSyncEvent(m_eventID, result, m_eventDispatchTime);
break;
case PaymentRequest:
client->didHandlePaymentRequestEvent(m_eventID, result,
m_eventDispatchTime);
break;
}
m_executionContext = nullptr;
}
void WaitUntilObserver::consumeWindowInteraction(TimerBase*) {
if (!m_executionContext)
return;
m_executionContext->consumeWindowInteraction();
}
DEFINE_TRACE(WaitUntilObserver) {
visitor->trace(m_executionContext);
}
} // namespace blink
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