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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "content/child/service_worker/service_worker_dispatcher.h" |
| 6 |
| 7 #include "base/lazy_instance.h" |
| 8 #include "base/threading/thread_local.h" |
| 9 #include "content/child/service_worker/web_service_worker_impl.h" |
| 10 #include "content/child/thread_safe_sender.h" |
| 11 #include "content/common/service_worker_messages.h" |
| 12 #include "third_party/WebKit/public/web/WebSecurityOrigin.h" |
| 13 |
| 14 using WebKit::WebServiceWorkerProvider; |
| 15 using base::ThreadLocalPointer; |
| 16 using webkit_glue::WorkerTaskRunner; |
| 17 |
| 18 namespace content { |
| 19 |
| 20 namespace { |
| 21 |
| 22 base::LazyInstance<ThreadLocalPointer<ServiceWorkerDispatcher> >::Leaky |
| 23 g_dispatcher_tls = LAZY_INSTANCE_INITIALIZER; |
| 24 |
| 25 ServiceWorkerDispatcher* const kHasBeenDeleted = |
| 26 reinterpret_cast<ServiceWorkerDispatcher*>(0x1); |
| 27 |
| 28 int CurrentWorkerId() { |
| 29 return WorkerTaskRunner::Instance()->CurrentWorkerId(); |
| 30 } |
| 31 |
| 32 } // namespace |
| 33 |
| 34 ServiceWorkerDispatcher::ServiceWorkerDispatcher( |
| 35 ThreadSafeSender* thread_safe_sender) |
| 36 : thread_safe_sender_(thread_safe_sender) { |
| 37 g_dispatcher_tls.Pointer()->Set(this); |
| 38 } |
| 39 |
| 40 ServiceWorkerDispatcher::~ServiceWorkerDispatcher() { |
| 41 g_dispatcher_tls.Pointer()->Set(kHasBeenDeleted); |
| 42 } |
| 43 |
| 44 void ServiceWorkerDispatcher::OnMessageReceived(const IPC::Message& msg) { |
| 45 bool handled = true; |
| 46 IPC_BEGIN_MESSAGE_MAP(ServiceWorkerDispatcher, msg) |
| 47 IPC_MESSAGE_HANDLER(ServiceWorkerMsg_ServiceWorkerRegistered, |
| 48 OnServiceWorkerRegistered) |
| 49 IPC_MESSAGE_HANDLER(ServiceWorkerMsg_ServiceWorkerUnregistered, |
| 50 OnServiceWorkerUnregistered) |
| 51 IPC_MESSAGE_UNHANDLED(handled = false) |
| 52 IPC_END_MESSAGE_MAP() |
| 53 DCHECK(handled) << "Unhandled message:" << msg.type(); |
| 54 } |
| 55 |
| 56 bool ServiceWorkerDispatcher::Send(IPC::Message* msg) { |
| 57 return thread_safe_sender_->Send(msg); |
| 58 } |
| 59 |
| 60 void ServiceWorkerDispatcher::RegisterServiceWorker( |
| 61 const GURL& pattern, |
| 62 const GURL& script_url, |
| 63 WebServiceWorkerProvider::WebServiceWorkerCallbacks* callbacks) { |
| 64 DCHECK(callbacks); |
| 65 int request_id = pending_callbacks_.Add(callbacks); |
| 66 thread_safe_sender_->Send(new ServiceWorkerHostMsg_RegisterServiceWorker( |
| 67 CurrentWorkerId(), request_id, pattern, script_url)); |
| 68 } |
| 69 |
| 70 void ServiceWorkerDispatcher::UnregisterServiceWorker( |
| 71 const GURL& pattern, |
| 72 WebServiceWorkerProvider::WebServiceWorkerCallbacks* callbacks) { |
| 73 DCHECK(callbacks); |
| 74 int request_id = pending_callbacks_.Add(callbacks); |
| 75 thread_safe_sender_->Send(new ServiceWorkerHostMsg_UnregisterServiceWorker( |
| 76 CurrentWorkerId(), request_id, pattern)); |
| 77 } |
| 78 |
| 79 ServiceWorkerDispatcher* ServiceWorkerDispatcher::ThreadSpecificInstance( |
| 80 ThreadSafeSender* thread_safe_sender) { |
| 81 if (g_dispatcher_tls.Pointer()->Get() == kHasBeenDeleted) { |
| 82 NOTREACHED() << "Re-instantiating TLS ServiceWorkerDispatcher."; |
| 83 g_dispatcher_tls.Pointer()->Set(NULL); |
| 84 } |
| 85 if (g_dispatcher_tls.Pointer()->Get()) |
| 86 return g_dispatcher_tls.Pointer()->Get(); |
| 87 |
| 88 ServiceWorkerDispatcher* dispatcher = |
| 89 new ServiceWorkerDispatcher(thread_safe_sender); |
| 90 if (WorkerTaskRunner::Instance()->CurrentWorkerId()) |
| 91 webkit_glue::WorkerTaskRunner::Instance()->AddStopObserver(dispatcher); |
| 92 return dispatcher; |
| 93 } |
| 94 |
| 95 void ServiceWorkerDispatcher::OnServiceWorkerRegistered( |
| 96 int32 thread_id, |
| 97 int32 request_id, |
| 98 int64 service_worker_id) { |
| 99 WebServiceWorkerProvider::WebServiceWorkerCallbacks* callbacks = |
| 100 pending_callbacks_.Lookup(request_id); |
| 101 DCHECK(callbacks); |
| 102 if (!callbacks) |
| 103 return; |
| 104 |
| 105 // the browser has to generate the service_worker_id so the same |
| 106 // worker can be called from different renderer contexts. However, |
| 107 // the impl object doesn't have to be the same instance across calls |
| 108 // unless we require the DOM objects to be identical when there's a |
| 109 // duplicate registration. So for now we mint a new object each |
| 110 // time. |
| 111 scoped_ptr<WebServiceWorkerImpl> worker( |
| 112 new WebServiceWorkerImpl(service_worker_id)); |
| 113 callbacks->onSuccess(worker.release()); |
| 114 pending_callbacks_.Remove(request_id); |
| 115 } |
| 116 |
| 117 void ServiceWorkerDispatcher::OnServiceWorkerUnregistered(int32 thread_id, |
| 118 int32 request_id) { |
| 119 WebServiceWorkerProvider::WebServiceWorkerCallbacks* callbacks = |
| 120 pending_callbacks_.Lookup(request_id); |
| 121 DCHECK(callbacks); |
| 122 if (!callbacks) |
| 123 return; |
| 124 |
| 125 callbacks->onSuccess(NULL); |
| 126 pending_callbacks_.Remove(request_id); |
| 127 } |
| 128 |
| 129 void ServiceWorkerDispatcher::OnWorkerRunLoopStopped() { delete this; } |
| 130 |
| 131 } // namespace content |
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