content/child/service_worker/web_service_worker_impl.cc

   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_impl.h"
   6
   7 #include "content/child/service_worker/service_worker_dispatcher.h"
   8 #include "content/child/service_worker/service_worker_handle_reference.h"
   9 #include "content/child/thread_safe_sender.h"
  10 #include "content/child/webmessageportchannel_impl.h"
  11 #include "content/common/service_worker/service_worker_messages.h"
  12 #include "third_party/WebKit/public/platform/WebServiceWorkerProxy.h"
  13 #include "third_party/WebKit/public/platform/WebString.h"
  14
  15 using blink::WebMessagePortChannel;
  16 using blink::WebMessagePortChannelArray;
  17 using blink::WebMessagePortChannelClient;
  18 using blink::WebString;
  19
  20 namespace content {
  21
  22 WebServiceWorkerImpl::WebServiceWorkerImpl(
  23     scoped_ptr<ServiceWorkerHandleReference> handle_ref,
  24     ThreadSafeSender* thread_safe_sender)
  25     : handle_ref_(handle_ref.Pass()),
  26       state_(handle_ref_->state()),
  27       thread_safe_sender_(thread_safe_sender),
  28       proxy_(NULL) {
  29   ServiceWorkerDispatcher* dispatcher =
  30       ServiceWorkerDispatcher::GetThreadSpecificInstance();
  31   DCHECK(dispatcher);
  32   dispatcher->AddServiceWorker(handle_ref_->handle_id(), this);
  33 }
  34
  35 WebServiceWorkerImpl::~WebServiceWorkerImpl() {
  36   if (handle_ref_->handle_id() == kInvalidServiceWorkerHandleId)
  37     return;
  38   ServiceWorkerDispatcher* dispatcher =
  39       ServiceWorkerDispatcher::GetThreadSpecificInstance();
  40   if (dispatcher)
  41     dispatcher->RemoveServiceWorker(handle_ref_->handle_id());
  42 }
  43
  44 void WebServiceWorkerImpl::OnStateChanged(
  45     blink::WebServiceWorkerState new_state) {
  46   if (proxy_ && proxy_->isReady())
  47     CommitState(new_state);
  48   else
  49     queued_states_.push_back(new_state);
  50 }
  51
  52 void WebServiceWorkerImpl::setProxy(blink::WebServiceWorkerProxy* proxy) {
  53   proxy_ = proxy;
  54 }
  55
  56 blink::WebServiceWorkerProxy* WebServiceWorkerImpl::proxy() {
  57   return proxy_;
  58 }
  59
  60 void WebServiceWorkerImpl::proxyReadyChanged() {
  61   if (!proxy_->isReady())
  62     return;
  63   for (std::vector<blink::WebServiceWorkerState>::iterator it =
  64            queued_states_.begin();
  65        it != queued_states_.end();
  66        ++it) {
  67     CommitState(*it);
  68   }
  69   queued_states_.clear();
  70 }
  71
  72 blink::WebURL WebServiceWorkerImpl::scope() const {
  73   return handle_ref_->scope();
  74 }
  75
  76 blink::WebURL WebServiceWorkerImpl::url() const {
  77   return handle_ref_->url();
  78 }
  79
  80 blink::WebServiceWorkerState WebServiceWorkerImpl::state() const {
  81   return state_;
  82 }
  83
  84 void WebServiceWorkerImpl::postMessage(const WebString& message,
  85                                        WebMessagePortChannelArray* channels) {
  86   thread_safe_sender_->Send(new ServiceWorkerHostMsg_PostMessageToWorker(
  87       handle_ref_->handle_id(),
  88       message,
  89       WebMessagePortChannelImpl::ExtractMessagePortIDs(channels)));
  90 }
  91
  92 void WebServiceWorkerImpl::terminate() {
  93   thread_safe_sender_->Send(
  94       new ServiceWorkerHostMsg_TerminateWorker(handle_ref_->handle_id()));
  95 }
  96
  97 void WebServiceWorkerImpl::CommitState(blink::WebServiceWorkerState new_state) {
  98   DCHECK(proxy_);
  99   DCHECK(proxy_->isReady());
 100   state_ = new_state;
 101   proxy_->dispatchStateChangeEvent();
 102 }
 103
 104 }  // namespace content