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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/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   DCHECK(proxy_);
     47   if (proxy_->isReady())
     48     ChangeState(new_state);
     49   else
     50     queued_states_.push_back(new_state);
     51 }
     52 
     53 void WebServiceWorkerImpl::setProxy(blink::WebServiceWorkerProxy* proxy) {
     54   proxy_ = proxy;
     55 }
     56 
     57 blink::WebServiceWorkerProxy* WebServiceWorkerImpl::proxy() {
     58   return proxy_;
     59 }
     60 
     61 void WebServiceWorkerImpl::proxyReadyChanged() {
     62   if (!proxy_->isReady())
     63     return;
     64   for (std::vector<blink::WebServiceWorkerState>::iterator it =
     65            queued_states_.begin();
     66        it != queued_states_.end();
     67        ++it) {
     68     ChangeState(*it);
     69   }
     70   queued_states_.clear();
     71 }
     72 
     73 blink::WebURL WebServiceWorkerImpl::scope() const {
     74   return handle_ref_->scope();
     75 }
     76 
     77 blink::WebURL WebServiceWorkerImpl::url() const {
     78   return handle_ref_->url();
     79 }
     80 
     81 blink::WebServiceWorkerState WebServiceWorkerImpl::state() const {
     82   return state_;
     83 }
     84 
     85 void WebServiceWorkerImpl::postMessage(const WebString& message,
     86                                        WebMessagePortChannelArray* channels) {
     87   thread_safe_sender_->Send(new ServiceWorkerHostMsg_PostMessageToWorker(
     88       handle_ref_->handle_id(),
     89       message,
     90       WebMessagePortChannelImpl::ExtractMessagePortIDs(channels)));
     91 }
     92 
     93 void WebServiceWorkerImpl::ChangeState(blink::WebServiceWorkerState new_state) {
     94   DCHECK(proxy_);
     95   DCHECK(proxy_->isReady());
     96   state_ = new_state;
     97   proxy_->dispatchStateChangeEvent();
     98 }
     99 
    100 }  // namespace content
    101