diff options
Diffstat (limited to 'chromium/content/renderer/shared_worker/embedded_shared_worker_stub.cc')
-rw-r--r-- | chromium/content/renderer/shared_worker/embedded_shared_worker_stub.cc | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/chromium/content/renderer/shared_worker/embedded_shared_worker_stub.cc b/chromium/content/renderer/shared_worker/embedded_shared_worker_stub.cc new file mode 100644 index 00000000000..5a6236b0871 --- /dev/null +++ b/chromium/content/renderer/shared_worker/embedded_shared_worker_stub.cc @@ -0,0 +1,212 @@ +// Copyright 2014 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#include "content/renderer/shared_worker/embedded_shared_worker_stub.h" + +#include "base/message_loop/message_loop_proxy.h" +#include "content/child/appcache/appcache_dispatcher.h" +#include "content/child/appcache/web_application_cache_host_impl.h" +#include "content/child/scoped_child_process_reference.h" +#include "content/child/shared_worker_devtools_agent.h" +#include "content/child/webmessageportchannel_impl.h" +#include "content/common/worker_messages.h" +#include "content/renderer/render_thread_impl.h" +#include "content/renderer/shared_worker/embedded_shared_worker_permission_client_proxy.h" +#include "ipc/ipc_message_macros.h" +#include "third_party/WebKit/public/web/WebSecurityOrigin.h" +#include "third_party/WebKit/public/web/WebSharedWorker.h" +#include "third_party/WebKit/public/web/WebSharedWorkerClient.h" + +namespace content { + +namespace { + +class SharedWorkerWebApplicationCacheHostImpl + : public WebApplicationCacheHostImpl { + public: + SharedWorkerWebApplicationCacheHostImpl( + blink::WebApplicationCacheHostClient* client) + : WebApplicationCacheHostImpl(client, + RenderThreadImpl::current() + ->appcache_dispatcher() + ->backend_proxy()) {} + + // Main resource loading is different for workers. The main resource is + // loaded by the worker using WorkerScriptLoader. + // These overrides are stubbed out. + virtual void willStartMainResourceRequest( + blink::WebURLRequest&, + const blink::WebApplicationCacheHost*) {} + virtual void didReceiveResponseForMainResource(const blink::WebURLResponse&) { + } + virtual void didReceiveDataForMainResource(const char* data, int len) {} + virtual void didFinishLoadingMainResource(bool success) {} + + // Cache selection is also different for workers. We know at construction + // time what cache to select and do so then. + // These overrides are stubbed out. + virtual void selectCacheWithoutManifest() {} + virtual bool selectCacheWithManifest(const blink::WebURL& manifestURL) { + return true; + } +}; +} + +EmbeddedSharedWorkerStub::EmbeddedSharedWorkerStub( + const GURL& url, + const base::string16& name, + const base::string16& content_security_policy, + blink::WebContentSecurityPolicyType security_policy_type, + bool pause_on_start, + int route_id) + : route_id_(route_id), name_(name), runing_(false), url_(url) { + RenderThreadImpl::current()->AddEmbeddedWorkerRoute(route_id_, this); + impl_ = blink::WebSharedWorker::create(this); + if (pause_on_start) { + // Pause worker context when it starts and wait until either DevTools client + // is attached or explicit resume notification is received. + impl_->pauseWorkerContextOnStart(); + } + worker_devtools_agent_.reset( + new SharedWorkerDevToolsAgent(route_id, impl_)); + impl_->startWorkerContext(url, name_, + content_security_policy, security_policy_type); +} + +EmbeddedSharedWorkerStub::~EmbeddedSharedWorkerStub() { + RenderThreadImpl::current()->RemoveEmbeddedWorkerRoute(route_id_); +} + +bool EmbeddedSharedWorkerStub::OnMessageReceived( + const IPC::Message& message) { + if (worker_devtools_agent_->OnMessageReceived(message)) + return true; + bool handled = true; + IPC_BEGIN_MESSAGE_MAP(EmbeddedSharedWorkerStub, message) + IPC_MESSAGE_HANDLER(WorkerMsg_TerminateWorkerContext, + OnTerminateWorkerContext) + IPC_MESSAGE_HANDLER(WorkerMsg_Connect, OnConnect) + IPC_MESSAGE_UNHANDLED(handled = false) + IPC_END_MESSAGE_MAP() + return handled; +} + +void EmbeddedSharedWorkerStub::OnChannelError() { + OnTerminateWorkerContext(); +} + +void EmbeddedSharedWorkerStub::workerScriptLoaded() { + Send(new WorkerHostMsg_WorkerScriptLoaded(route_id_)); + runing_ = true; + // Process any pending connections. + for (PendingChannelList::const_iterator iter = pending_channels_.begin(); + iter != pending_channels_.end(); + ++iter) { + ConnectToChannel(*iter); + } + pending_channels_.clear(); +} + +void EmbeddedSharedWorkerStub::workerScriptLoadFailed() { + Send(new WorkerHostMsg_WorkerScriptLoadFailed(route_id_)); + for (PendingChannelList::const_iterator iter = pending_channels_.begin(); + iter != pending_channels_.end(); + ++iter) { + blink::WebMessagePortChannel* channel = *iter; + channel->destroy(); + } + pending_channels_.clear(); + Shutdown(); +} + +void EmbeddedSharedWorkerStub::workerContextClosed() { + Send(new WorkerHostMsg_WorkerContextClosed(route_id_)); +} + +void EmbeddedSharedWorkerStub::workerContextDestroyed() { + Send(new WorkerHostMsg_WorkerContextDestroyed(route_id_)); + Shutdown(); +} + +void EmbeddedSharedWorkerStub::selectAppCacheID(long long app_cache_id) { + if (app_cache_host_) { + // app_cache_host_ could become stale as it's owned by blink's + // DocumentLoader. This method is assumed to be called while it's valid. + app_cache_host_->backend()->SelectCacheForSharedWorker( + app_cache_host_->host_id(), app_cache_id); + } +} + +blink::WebNotificationPresenter* +EmbeddedSharedWorkerStub::notificationPresenter() { + // TODO(horo): delete this method if we have no plan to implement this. + NOTREACHED(); + return NULL; +} + +blink::WebApplicationCacheHost* +EmbeddedSharedWorkerStub::createApplicationCacheHost( + blink::WebApplicationCacheHostClient* client) { + app_cache_host_ = new SharedWorkerWebApplicationCacheHostImpl(client); + return app_cache_host_; +} + +blink::WebWorkerPermissionClientProxy* + EmbeddedSharedWorkerStub::createWorkerPermissionClientProxy( + const blink::WebSecurityOrigin& origin) { + return new EmbeddedSharedWorkerPermissionClientProxy( + GURL(origin.toString()), + origin.isUnique(), + route_id_, + ChildThread::current()->thread_safe_sender()); +} + +void EmbeddedSharedWorkerStub::dispatchDevToolsMessage( + const blink::WebString& message) { + worker_devtools_agent_->SendDevToolsMessage(message); +} + +void EmbeddedSharedWorkerStub::saveDevToolsAgentState( + const blink::WebString& state) { + worker_devtools_agent_->SaveDevToolsAgentState(state); +} + +void EmbeddedSharedWorkerStub::Shutdown() { + delete this; +} + +bool EmbeddedSharedWorkerStub::Send(IPC::Message* message) { + return RenderThreadImpl::current()->Send(message); +} + +void EmbeddedSharedWorkerStub::ConnectToChannel( + WebMessagePortChannelImpl* channel) { + impl_->connect(channel); + Send( + new WorkerHostMsg_WorkerConnected(channel->message_port_id(), route_id_)); +} + +void EmbeddedSharedWorkerStub::OnConnect(int sent_message_port_id, + int routing_id) { + WebMessagePortChannelImpl* channel = + new WebMessagePortChannelImpl(routing_id, + sent_message_port_id, + base::MessageLoopProxy::current().get()); + if (runing_) { + ConnectToChannel(channel); + } else { + // If two documents try to load a SharedWorker at the same time, the + // WorkerMsg_Connect for one of the documents can come in before the + // worker is started. Just queue up the connect and deliver it once the + // worker starts. + pending_channels_.push_back(channel); + } +} + +void EmbeddedSharedWorkerStub::OnTerminateWorkerContext() { + runing_ = false; + impl_->terminateWorkerContext(); +} + +} // namespace content |