[Background Sync] Converting Blink code to the MVP API

Source/modules/background_sync/PeriodicSyncManager.cpp

+// Copyright 2015 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 "config.h"
+#include "modules/background_sync/PeriodicSyncManager.h"
+
+#include "bindings/core/v8/CallbackPromiseAdapter.h"
+#include "bindings/core/v8/ScriptPromise.h"
+#include "bindings/core/v8/ScriptPromiseResolver.h"
+#include "bindings/core/v8/ScriptState.h"
+#include "core/dom/DOMException.h"
+#include "core/dom/Document.h"
+#include "core/dom/ExceptionCode.h"
+#include "core/dom/ExecutionContext.h"
+#include "modules/background_sync/PeriodicSyncRegistrationOptions.h"
+#include "modules/background_sync/SyncCallbacks.h"
+#include "modules/serviceworkers/ServiceWorkerRegistration.h"
+#include "public/platform/Platform.h"
+#include "public/platform/modules/background_sync/WebSyncProvider.h"
+#include "public/platform/modules/background_sync/WebSyncRegistration.h"
+#include "wtf/RefPtr.h"
+
+
+namespace blink {
+namespace {
+
+/* This is the minimum period which will be allowed by the Background
+ * Sync manager process. It is recorded here in order to be able to
+ * respond to syncManager.minAllowablePeriod.
+ * The time is expressed in milliseconds,
+ */
+unsigned long kMinPossiblePeriod = 12 * 60 * 60 * 1000;
+
+WebSyncProvider* backgroundSyncProvider()
+{
+    WebSyncProvider* webSyncProvider = Platform::current()->backgroundSyncProvider();
+    ASSERT(webSyncProvider);
+    return webSyncProvider;
+}
+
+}
+
+PeriodicSyncManager::PeriodicSyncManager(ServiceWorkerRegistration* registration)
+    : m_registration(registration)
+{
+    ASSERT(registration);
+}
+
+unsigned long PeriodicSyncManager::minPossiblePeriod()
+{
+    return kMinPossiblePeriod;
+}
+
+ScriptPromise PeriodicSyncManager::registerFunction(blink::ScriptState* scriptState, const PeriodicSyncRegistrationOptions& options)
+{
+    if (!m_registration->active())
+        return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(AbortError, "Registration failed - no active Service Worker"));
+
+    RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    ScriptPromise promise = resolver->promise();
+
+    WebSyncRegistration::NetworkState networkState;
+    String networkStateString = options.networkState();
+    if (networkStateString == "any") {
+        networkState = WebSyncRegistration::NetworkState::NetworkStateAny;
+    } else if (networkStateString == "avoid-cellular") {
+        networkState = WebSyncRegistration::NetworkState::NetworkStateAvoidCellular;
+    } else {
+        networkState = WebSyncRegistration::NetworkState::NetworkStateOnline;
+    }
+    WebSyncRegistration::PowerState powerState;
+    String powerStateString = options.powerState();
+    if (powerStateString == "avoid-draining") {
+        powerState = WebSyncRegistration::PowerState::PowerStateAvoidDraining;
+    } else {
+        powerState = WebSyncRegistration::PowerState::PowerStateAuto;
+    }
+    WebSyncRegistration* webSyncRegistration = new WebSyncRegistration(
+        WebSyncRegistration::UNREGISTERED_SYNC_ID,
+        WebSyncRegistration::PeriodicityPeriodic,
+        options.tag(),
+        options.minPeriod(),
+        networkState,
+        powerState
+    );
+    backgroundSyncProvider()->registerBackgroundSync(webSyncRegistration, m_registration->webRegistration(), new SyncRegistrationCallbacks(resolver, m_registration));
+
+    return promise;
+}
+
+ScriptPromise PeriodicSyncManager::getRegistration(blink::ScriptState* scriptState, const String& syncRegistrationTag)
+{
+    if (!m_registration->active())
+        return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(AbortError, "Operation failed - no active Service Worker"));
+
+    RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    ScriptPromise promise = resolver->promise();
+
+    backgroundSyncProvider()->getRegistration(blink::WebSyncRegistration::PeriodicityPeriodic, syncRegistrationTag, m_registration->webRegistration(), new SyncRegistrationCallbacks(resolver, m_registration));
+
+    return promise;
+}
+
+ScriptPromise PeriodicSyncManager::getRegistrations(blink::ScriptState* scriptState)
+{
+    if (!m_registration->active())
+        return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(AbortError, "Operation failed - no active Service Worker"));
+
+    RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    ScriptPromise promise = resolver->promise();
+
+    backgroundSyncProvider()->getRegistrations(blink::WebSyncRegistration::PeriodicityPeriodic, m_registration->webRegistration(), new SyncGetRegistrationsCallbacks(resolver, m_registration));
+
+    return promise;
+}
+
+ScriptPromise PeriodicSyncManager::permissionState(blink::ScriptState* scriptState)
+{
+    if (!m_registration->active())
+        return ScriptPromise::rejectWithDOMException(scriptState, DOMException::create(AbortError, "Operation failed - no active Service Worker"));
+
+    RefPtrWillBeRawPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
+    ScriptPromise promise = resolver->promise();
+    resolver->resolve(String::fromUTF8("granted"));
+    return promise;
+}
+
+DEFINE_TRACE(PeriodicSyncManager)
+{
+    visitor->trace(m_registration);
+}
+
+} // namespace blink