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| 1 // Copyright (c) 2009 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 "chrome/worker/worker_thread.h" | |
| 6 | |
| 7 #include "base/command_line.h" | |
| 8 #include "base/lazy_instance.h" | |
| 9 #include "base/threading/thread_local.h" | |
| 10 #include "chrome/worker/webworker_stub.h" | |
| 11 #include "chrome/worker/websharedworker_stub.h" | |
| 12 #include "chrome/worker/worker_webkitclient_impl.h" | |
| 13 #include "content/common/appcache/appcache_dispatcher.h" | |
| 14 #include "content/common/content_switches.h" | |
| 15 #include "content/common/db_message_filter.h" | |
| 16 #include "content/common/web_database_observer_impl.h" | |
| 17 #include "content/common/worker_messages.h" | |
| 18 #include "ipc/ipc_sync_channel.h" | |
| 19 #include "third_party/WebKit/Source/WebKit/chromium/public/WebBlobRegistry.h" | |
| 20 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDatabase.h" | |
| 21 #include "third_party/WebKit/Source/WebKit/chromium/public/WebKit.h" | |
| 22 #include "third_party/WebKit/Source/WebKit/chromium/public/WebRuntimeFeatures.h" | |
| 23 #include "webkit/glue/webkit_glue.h" | |
| 24 | |
| 25 using WebKit::WebRuntimeFeatures; | |
| 26 | |
| 27 static base::LazyInstance<base::ThreadLocalPointer<WorkerThread> > lazy_tls( | |
| 28 base::LINKER_INITIALIZED); | |
| 29 | |
| 30 | |
| 31 WorkerThread::WorkerThread() { | |
| 32 lazy_tls.Pointer()->Set(this); | |
| 33 webkit_client_.reset(new WorkerWebKitClientImpl); | |
| 34 WebKit::initialize(webkit_client_.get()); | |
| 35 | |
| 36 appcache_dispatcher_.reset(new AppCacheDispatcher(this)); | |
| 37 | |
| 38 web_database_observer_impl_.reset(new WebDatabaseObserverImpl(this)); | |
| 39 WebKit::WebDatabase::setObserver(web_database_observer_impl_.get()); | |
| 40 db_message_filter_ = new DBMessageFilter(); | |
| 41 channel()->AddFilter(db_message_filter_.get()); | |
| 42 | |
| 43 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); | |
| 44 | |
| 45 webkit_glue::EnableWebCoreLogChannels( | |
| 46 command_line.GetSwitchValueASCII(switches::kWebCoreLogChannels)); | |
| 47 | |
| 48 WebKit::WebRuntimeFeatures::enableDatabase( | |
| 49 !command_line.HasSwitch(switches::kDisableDatabases)); | |
| 50 | |
| 51 WebKit::WebRuntimeFeatures::enableApplicationCache( | |
| 52 !command_line.HasSwitch(switches::kDisableApplicationCache)); | |
| 53 | |
| 54 #if defined(OS_WIN) | |
| 55 // We don't yet support notifications on non-Windows, so hide it from pages. | |
| 56 WebRuntimeFeatures::enableNotifications( | |
| 57 !command_line.HasSwitch(switches::kDisableDesktopNotifications)); | |
| 58 #endif | |
| 59 | |
| 60 WebRuntimeFeatures::enableSockets( | |
| 61 !command_line.HasSwitch(switches::kDisableWebSockets)); | |
| 62 | |
| 63 WebRuntimeFeatures::enableFileSystem( | |
| 64 !command_line.HasSwitch(switches::kDisableFileSystem)); | |
| 65 | |
| 66 WebRuntimeFeatures::enableWebGL( | |
| 67 !command_line.HasSwitch(switches::kDisable3DAPIs) && | |
| 68 !command_line.HasSwitch(switches::kDisableExperimentalWebGL)); | |
| 69 } | |
| 70 | |
| 71 WorkerThread::~WorkerThread() { | |
| 72 // Shutdown in reverse of the initialization order. | |
| 73 channel()->RemoveFilter(db_message_filter_.get()); | |
| 74 db_message_filter_ = NULL; | |
| 75 | |
| 76 WebKit::shutdown(); | |
| 77 lazy_tls.Pointer()->Set(NULL); | |
| 78 } | |
| 79 | |
| 80 WorkerThread* WorkerThread::current() { | |
| 81 return lazy_tls.Pointer()->Get(); | |
| 82 } | |
| 83 | |
| 84 bool WorkerThread::OnControlMessageReceived(const IPC::Message& msg) { | |
| 85 // Appcache messages are handled by a delegate. | |
| 86 if (appcache_dispatcher_->OnMessageReceived(msg)) | |
| 87 return true; | |
| 88 | |
| 89 bool handled = true; | |
| 90 IPC_BEGIN_MESSAGE_MAP(WorkerThread, msg) | |
| 91 IPC_MESSAGE_HANDLER(WorkerProcessMsg_CreateWorker, OnCreateWorker) | |
| 92 IPC_MESSAGE_UNHANDLED(handled = false) | |
| 93 IPC_END_MESSAGE_MAP() | |
| 94 return handled; | |
| 95 } | |
| 96 | |
| 97 void WorkerThread::OnCreateWorker( | |
| 98 const WorkerProcessMsg_CreateWorker_Params& params) { | |
| 99 WorkerAppCacheInitInfo appcache_init_info( | |
| 100 params.is_shared, params.creator_process_id, | |
| 101 params.creator_appcache_host_id, | |
| 102 params.shared_worker_appcache_id); | |
| 103 | |
| 104 // WebWorkerStub and WebSharedWorkerStub own themselves. | |
| 105 if (params.is_shared) | |
| 106 new WebSharedWorkerStub(params.name, params.route_id, appcache_init_info); | |
| 107 else | |
| 108 new WebWorkerStub(params.url, params.route_id, appcache_init_info); | |
| 109 } | |
| 110 | |
| 111 // The browser process is likely dead. Terminate all workers. | |
| 112 void WorkerThread::OnChannelError() { | |
| 113 set_on_channel_error_called(true); | |
| 114 | |
| 115 for (WorkerStubsList::iterator it = worker_stubs_.begin(); | |
| 116 it != worker_stubs_.end(); ++it) { | |
| 117 (*it)->OnChannelError(); | |
| 118 } | |
| 119 } | |
| 120 | |
| 121 void WorkerThread::RemoveWorkerStub(WebWorkerStubBase* stub) { | |
| 122 worker_stubs_.erase(stub); | |
| 123 } | |
| 124 | |
| 125 void WorkerThread::AddWorkerStub(WebWorkerStubBase* stub) { | |
| 126 worker_stubs_.insert(stub); | |
| 127 } | |
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