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/web_service_worker_provider_impl.h"
6
7 #include "base/atomic_sequence_num.h"
8 #include "base/logging.h"
9 #include "content/child/child_thread.h"
10 #include "content/child/service_worker/service_worker_dispatcher.h"
11 #include "content/child/service_worker/service_worker_handle_reference.h"
12 #include "content/child/service_worker/service_worker_provider_context.h"
13 #include "content/child/service_worker/web_service_worker_impl.h"
14 #include "content/child/thread_safe_sender.h"
15 #include "content/common/service_worker/service_worker_messages.h"
16 #include "third_party/WebKit/public/platform/WebServiceWorkerProviderClient.h"
17 #include "third_party/WebKit/public/platform/WebURL.h"
18
19 using blink::WebURL;
20
21 namespace content {
22
WebServiceWorkerProviderImpl(ThreadSafeSender * thread_safe_sender,ServiceWorkerProviderContext * context)23 WebServiceWorkerProviderImpl::WebServiceWorkerProviderImpl(
24 ThreadSafeSender* thread_safe_sender,
25 ServiceWorkerProviderContext* context)
26 : thread_safe_sender_(thread_safe_sender),
27 context_(context),
28 provider_id_(context->provider_id()) {
29 }
30
~WebServiceWorkerProviderImpl()31 WebServiceWorkerProviderImpl::~WebServiceWorkerProviderImpl() {
32 // Make sure the script client is removed.
33 RemoveScriptClient();
34 }
35
setClient(blink::WebServiceWorkerProviderClient * client)36 void WebServiceWorkerProviderImpl::setClient(
37 blink::WebServiceWorkerProviderClient* client) {
38 if (!client) {
39 RemoveScriptClient();
40 return;
41 }
42
43 // TODO(kinuko): Here we could also register the current thread ID
44 // on the provider context so that multiple WebServiceWorkerProviderImpl
45 // (e.g. on document and on dedicated workers) can properly share
46 // the single provider context across threads. (http://crbug.com/366538
47 // for more context)
48 GetDispatcher()->AddScriptClient(provider_id_, client);
49
50 if (context_->waiting_handle_id() != kInvalidServiceWorkerHandleId) {
51 client->setWaiting(
52 GetDispatcher()->GetServiceWorker(context_->waiting()->info(), false));
53 }
54
55 if (context_->current_handle_id() != kInvalidServiceWorkerHandleId) {
56 client->setController(
57 GetDispatcher()->GetServiceWorker(context_->current()->info(), false));
58 }
59 }
60
registerServiceWorker(const WebURL & pattern,const WebURL & script_url,WebServiceWorkerCallbacks * callbacks)61 void WebServiceWorkerProviderImpl::registerServiceWorker(
62 const WebURL& pattern,
63 const WebURL& script_url,
64 WebServiceWorkerCallbacks* callbacks) {
65 GetDispatcher()->RegisterServiceWorker(
66 provider_id_, pattern, script_url, callbacks);
67 }
68
unregisterServiceWorker(const WebURL & pattern,WebServiceWorkerCallbacks * callbacks)69 void WebServiceWorkerProviderImpl::unregisterServiceWorker(
70 const WebURL& pattern,
71 WebServiceWorkerCallbacks* callbacks) {
72 GetDispatcher()->UnregisterServiceWorker(
73 provider_id_, pattern, callbacks);
74 }
75
RemoveScriptClient()76 void WebServiceWorkerProviderImpl::RemoveScriptClient() {
77 // Remove the script client, but only if the dispatcher is still there.
78 // (For cleanup path we don't need to bother creating a new dispatcher)
79 ServiceWorkerDispatcher* dispatcher =
80 ServiceWorkerDispatcher::GetThreadSpecificInstance();
81 if (dispatcher)
82 dispatcher->RemoveScriptClient(provider_id_);
83 }
84
GetDispatcher()85 ServiceWorkerDispatcher* WebServiceWorkerProviderImpl::GetDispatcher() {
86 return ServiceWorkerDispatcher::GetOrCreateThreadSpecificInstance(
87 thread_safe_sender_);
88 }
89
90 } // namespace content
91