Move Web Notifications to use Mojo

third_party/WebKit/Source/modules/notifications/NotificationManager.cpp

+// 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/notifications/NotificationManager.h"
+
+#include "core/dom/Document.h"
+#include "public/platform/Platform.h"
+#include "public/platform/ServiceRegistry.h"
+#include "public/platform/modules/permissions/permission_status.mojom.h"
+#include "public/platform/modules/permissions/permission_status.mojom-wtf.h"
+
+namespace blink {
+
+#define STATIC_ASSERT_ENUM(a, b) \
+    static_assert(static_cast<int>(a) == static_cast<int>(b), "mismatching enum: " #a)
+
+STATIC_ASSERT_ENUM(mojom::PermissionStatus::GRANTED, mojom::wtf::PermissionStatus::GRANTED);
+STATIC_ASSERT_ENUM(mojom::PermissionStatus::DENIED, mojom::wtf::PermissionStatus::DENIED);
+STATIC_ASSERT_ENUM(mojom::PermissionStatus::ASK, mojom::wtf::PermissionStatus::ASK);
+STATIC_ASSERT_ENUM(mojom::PermissionStatus::LAST, mojom::wtf::PermissionStatus::LAST);
+
+// static
+NotificationManager* NotificationManager::from(ExecutionContext* executionContext)
+{
+    DCHECK(executionContext);
+    DCHECK(executionContext->isContextThread());
+
+    NotificationManager* manager = nullptr;
+
+    if (executionContext->isDocument()) {
+        LocalFrame* localFrame = toDocument(executionContext)->frame();
+        DCHECK(localFrame);
+
+        manager = static_cast<NotificationManager*>(Supplement<LocalFrame>::from(localFrame, supplementName()));
+        if (!manager) {
+            manager = new NotificationManager(executionContext);
+            Supplement<LocalFrame>::provideTo(*localFrame, supplementName(), manager);
+        }
+    } else {
+        WorkerGlobalScope* workerGlobalScope = toWorkerGlobalScope(executionContext);
+        DCHECK(workerGlobalScope);
+
+        manager = static_cast<NotificationManager*>(Supplement<WorkerGlobalScope>::from(workerGlobalScope, supplementName()));
+        if (!manager) {
+            manager = new NotificationManager(executionContext);
+            Supplement<WorkerGlobalScope>::provideTo(*workerGlobalScope, supplementName(), manager);
+        }
+    }
+
+    return manager;
+}
+
+// static
+const char* NotificationManager::supplementName()
+{
+    return "NotificationManager";
+}
+
+NotificationManager::NotificationManager(ExecutionContext* executionContext)
+    : ContextLifecycleObserver(executionContext)
+{
+    Platform::current()->serviceRegistry()->connectToRemoteService(mojo::GetProxy(&m_service));
+}
+
+NotificationManager::~NotificationManager()
+{
+}
+
+mojom::PermissionStatus NotificationManager::permissionStatus() const
+{
+    mojom::wtf::PermissionStatus wtfPermissionStatus;
+
+    const bool result =
+        m_service->GetPermissionStatus(getOriginString(), &wtfPermissionStatus);
+    DCHECK(result);
+
+    // Both PermissionStatus enums are generated from the same source, but by using the WTF variant
+    // of the NotificationService the same variant of the enum must be used, different from other
+    // users. Static assertions for equality are included in this file.
+    return static_cast<mojom::PermissionStatus>(wtfPermissionStatus);
+}
+
+void NotificationManager::show(
+      mojom::wtf::NotificationPtr notification,
+      mojom::wtf::NotificationResourcesPtr notificationResources)
+{
+    // TODO: Implement this method.
+}
+
+void NotificationManager::showPersistent(
+      mojom::wtf::NotificationPtr notification,
+      mojom::wtf::NotificationResourcesPtr notificationResources,
+      const mojom::wtf::NotificationService::ShowPersistentCallback& callback)
+{
+    m_service->ShowPersistent(getOriginString(), std::move(notification), std::move(notificationResources), callback);
+}
+
+void NotificationManager::contextDestroyed()
+{
+    m_service.reset();
+}
+
+String NotificationManager::getOriginString() const
+{
+    return getExecutionContext()->getSecurityOrigin()->toString();
+}
+
+DEFINE_TRACE(NotificationManager)
+{
+    ContextLifecycleObserver::trace(visitor);
+    Supplement<LocalFrame>::trace(visitor);
+    Supplement<WorkerGlobalScope>::trace(visitor);
+}
+
+} // namespace blink