src/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     const ServiceWorkerObjectInfo& info,
  24     ThreadSafeSender* thread_safe_sender)
  25     : handle_ref_(
  26           ServiceWorkerHandleReference::CreateForDeleter(info,
  27                                                          thread_safe_sender)),
  28       state_(handle_ref_->state()),
  29       thread_safe_sender_(thread_safe_sender),
  30       proxy_(NULL) {
  31   ServiceWorkerDispatcher* dispatcher =
  32       ServiceWorkerDispatcher::GetThreadSpecificInstance();
  33   DCHECK(dispatcher);
  34   dispatcher->AddServiceWorker(handle_ref_->handle_id(), this);
  35 }
  36
  37 WebServiceWorkerImpl::WebServiceWorkerImpl(
  38     scoped_ptr<ServiceWorkerHandleReference> handle_ref,
  39     ThreadSafeSender* thread_safe_sender)
  40     : handle_ref_(handle_ref.Pass()),
  41       state_(handle_ref_->state()),
  42       thread_safe_sender_(thread_safe_sender),
  43       proxy_(NULL) {
  44   ServiceWorkerDispatcher* dispatcher =
  45       ServiceWorkerDispatcher::GetThreadSpecificInstance();
  46   DCHECK(dispatcher);
  47   dispatcher->AddServiceWorker(handle_ref_->handle_id(), this);
  48 }
  49
  50 WebServiceWorkerImpl::~WebServiceWorkerImpl() {
  51   if (handle_ref_->handle_id() == kInvalidServiceWorkerHandleId)
  52     return;
  53   ServiceWorkerDispatcher* dispatcher =
  54       ServiceWorkerDispatcher::GetThreadSpecificInstance();
  55   if (dispatcher)
  56     dispatcher->RemoveServiceWorker(handle_ref_->handle_id());
  57 }
  58
  59 void WebServiceWorkerImpl::OnStateChanged(
  60     blink::WebServiceWorkerState new_state) {
  61   DCHECK(proxy_);
  62   if (proxy_->isReady())
  63     ChangeState(new_state);
  64   else
  65     queued_states_.push_back(new_state);
  66 }
  67
  68 void WebServiceWorkerImpl::setProxy(blink::WebServiceWorkerProxy* proxy) {
  69   proxy_ = proxy;
  70 }
  71
  72 void WebServiceWorkerImpl::proxyReadyChanged() {
  73   if (!proxy_->isReady())
  74     return;
  75   for (std::vector<blink::WebServiceWorkerState>::iterator it =
  76            queued_states_.begin();
  77        it != queued_states_.end();
  78        ++it) {
  79     ChangeState(*it);
  80   }
  81   queued_states_.clear();
  82 }
  83
  84 blink::WebURL WebServiceWorkerImpl::scope() const {
  85   return handle_ref_->scope();
  86 }
  87
  88 blink::WebURL WebServiceWorkerImpl::url() const {
  89   return handle_ref_->url();
  90 }
  91
  92 blink::WebServiceWorkerState WebServiceWorkerImpl::state() const {
  93   return state_;
  94 }
  95
  96 void WebServiceWorkerImpl::postMessage(const WebString& message,
  97                                        WebMessagePortChannelArray* channels) {
  98   thread_safe_sender_->Send(new ServiceWorkerHostMsg_PostMessageToWorker(
  99       handle_ref_->handle_id(),
 100       message,
 101       WebMessagePortChannelImpl::ExtractMessagePortIDs(channels)));
 102 }
 103
 104 void WebServiceWorkerImpl::ChangeState(blink::WebServiceWorkerState new_state) {
 105   DCHECK(proxy_);
 106   DCHECK(proxy_->isReady());
 107   state_ = new_state;
 108   proxy_->dispatchStateChangeEvent();
 109 }
 110
 111 }  // namespace content