ServiceWorker: Implement navigator.serviceWorker.getRegistration [2/3]

content/child/service_worker/service_worker_dispatcher.cc

 // Copyright 2013 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 "content/child/service_worker/service_worker_dispatcher.h"
 
 #include "base/lazy_instance.h"
 #include "base/stl_util.h"
 #include "base/threading/thread_local.h"
 #include "content/child/child_thread.h"
@@ skipping 38 matching lines @@
 ServiceWorkerDispatcher::~ServiceWorkerDispatcher() {
   g_dispatcher_tls.Pointer()->Set(kHasBeenDeleted);
 }
 
 void ServiceWorkerDispatcher::OnMessageReceived(const IPC::Message& msg) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(ServiceWorkerDispatcher, msg)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_ServiceWorkerRegistered, OnRegistered)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_ServiceWorkerUnregistered,
                         OnUnregistered)
+    IPC_MESSAGE_HANDLER(ServiceWorkerMsg_DidGetRegistration,
+                        OnDidGetRegistration)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_ServiceWorkerRegistrationError,
                         OnRegistrationError)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_ServiceWorkerStateChanged,
                         OnServiceWorkerStateChanged)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_SetVersionAttributes,
                         OnSetVersionAttributes)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_UpdateFound,
                         OnUpdateFound)
     IPC_MESSAGE_HANDLER(ServiceWorkerMsg_SetControllerServiceWorker,
                         OnSetControllerServiceWorker)
@@ skipping 43 matching lines @@
         WebServiceWorkerError::ErrorTypeSecurity, "URL too long"));
     callbacks->onError(error.release());
     return;
   }
 
   int request_id = pending_callbacks_.Add(callbacks);
   thread_safe_sender_->Send(new ServiceWorkerHostMsg_UnregisterServiceWorker(
       CurrentWorkerId(), request_id, provider_id, pattern));
 }
 
+void ServiceWorkerDispatcher::GetRegistration(
+    int provider_id,
+    const GURL& document_url,
+    WebServiceWorkerRegistrationCallbacks* callbacks) {
+  DCHECK(callbacks);
+
+  if (document_url.possibly_invalid_spec().size() > GetMaxURLChars()) {
+    scoped_ptr<WebServiceWorkerRegistrationCallbacks>
+        owned_callbacks(callbacks);
+    scoped_ptr<WebServiceWorkerError> error(new WebServiceWorkerError(
+        WebServiceWorkerError::ErrorTypeSecurity, "URL too long"));
+    callbacks->onError(error.release());
+    return;
+  }
+
+  int request_id = pending_callbacks_.Add(callbacks);
+  thread_safe_sender_->Send(new ServiceWorkerHostMsg_GetRegistration(
+      CurrentWorkerId(), request_id, provider_id, document_url));
+}
+
 void ServiceWorkerDispatcher::AddProviderContext(
     ServiceWorkerProviderContext* provider_context) {
   DCHECK(provider_context);
   int provider_id = provider_context->provider_id();
   DCHECK(!ContainsKey(provider_contexts_, provider_id));
   provider_contexts_[provider_id] = provider_context;
 }
 
 void ServiceWorkerDispatcher::RemoveProviderContext(
     ServiceWorkerProviderContext* provider_context) {
@@ skipping 132 matching lines @@
   WebServiceWorkerRegistrationCallbacks* callbacks =
       pending_callbacks_.Lookup(request_id);
   DCHECK(callbacks);
   if (!callbacks)
     return;
 
   callbacks->onSuccess(NULL);
   pending_callbacks_.Remove(request_id);
 }
 
+void ServiceWorkerDispatcher::OnDidGetRegistration(
+    int thread_id,
+    int request_id,
+    const ServiceWorkerRegistrationObjectInfo& info,
+    const ServiceWorkerVersionAttributes& attrs) {
+  WebServiceWorkerRegistrationCallbacks* callbacks =
+      pending_callbacks_.Lookup(request_id);
+  DCHECK(callbacks);
+  if (!callbacks)
+    return;
+
+  WebServiceWorkerRegistrationImpl* registration =
+      GetServiceWorkerRegistration(info, true);
+  if (registration) {
+    registration->SetInstalling(GetServiceWorker(attrs.installing, true));
+    registration->SetWaiting(GetServiceWorker(attrs.waiting, true));
+    registration->SetActive(GetServiceWorker(attrs.active, true));
+  }
+  callbacks->onSuccess(registration);

[nhiroki, 2014/09/05 04:55:09]

I guess this could be resolved with 'null' if a registration is not found (ie.
|registration| is null), but as per the spec[1], we need to resolve a promise
with 'undefined' in the case.

[1]
https://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html#na...

[Kunihiko Sakamoto, 2014/09/09 07:28:10]

Done (in Blink side).

+  pending_callbacks_.Remove(request_id);
+}
+
 void ServiceWorkerDispatcher::OnRegistrationError(
     int thread_id,
     int request_id,
     WebServiceWorkerError::ErrorType error_type,
     const base::string16& message) {
   WebServiceWorkerRegistrationCallbacks* callbacks =
       pending_callbacks_.Lookup(request_id);
   DCHECK(callbacks);
   if (!callbacks)
     return;
@@ skipping 198 matching lines @@
   registrations_[registration_handle_id] = registration;
 }
 
 void ServiceWorkerDispatcher::RemoveServiceWorkerRegistration(
     int registration_handle_id) {
   DCHECK(ContainsKey(registrations_, registration_handle_id));
   registrations_.erase(registration_handle_id);
 }
 
 }  // namespace content