DevTools: add initial support for shared workers debugging

chrome/browser/ui/webui/workers_ui.cc

 // Copyright (c) 2011 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 "chrome/browser/ui/webui/workers_ui.h"
 
 #include "base/json/json_writer.h"
 #include "base/memory/ref_counted_memory.h"
+#include "base/string_number_conversions.h"
 #include "base/string_util.h"
 #include "base/values.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webui/chrome_url_data_manager_backend.h"
 #include "chrome/browser/ui/webui/chrome_web_ui_data_source.h"
 #include "chrome/common/url_constants.h"
+#include "content/browser/debugger/worker_devtools_manager.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "content/browser/worker_host/worker_process_host.h"
+#include "content/common/devtools_messages.h"
 #include "grit/generated_resources.h"
 #include "grit/workers_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 
 static const char kWorkersDataFile[] = "workers_data.json";
 static const char kIndexHtmlFile[]  = "index.html";
 
 namespace {
 
 class WorkersUIHTMLSource : public ChromeURLDataManager::DataSource {
@@ skipping 45 matching lines @@
     ListValue workers_list;
     BrowserChildProcessHost::Iterator iter(ChildProcessInfo::WORKER_PROCESS);
     for (; !iter.Done(); ++iter) {
       WorkerProcessHost* worker = static_cast<WorkerProcessHost*>(*iter);
       const WorkerProcessHost::Instances& instances = worker->instances();
       for (WorkerProcessHost::Instances::const_iterator i = instances.begin();
            i != instances.end(); ++i) {
         if (!i->shared())
           continue;
         DictionaryValue* worker_data = new DictionaryValue();
-        worker_data->SetInteger("id", i->worker_route_id());
+        worker_data->SetInteger("workerProcessHostId", worker->id());
+        worker_data->SetInteger("workerRouteId", i->worker_route_id());
         worker_data->SetString("url", i->url().spec());
         worker_data->SetString("name", i->name());
         worker_data->SetInteger("pid", worker->pid());
         workers_list.Append(worker_data);
       }
     }
 
     std::string json_string;
     base::JSONWriter::Write(&workers_list, false, &json_string);
 
     scoped_refptr<RefCountedBytes> json_bytes(new RefCountedBytes());
     json_bytes->data.resize(json_string.size());
     std::copy(json_string.begin(), json_string.end(), json_bytes->data.begin());
 
     SendResponse(request_id, json_bytes);
 }
 
+class WorkersDOMHandler : public WebUIMessageHandler {
+ public:
+  WorkersDOMHandler() {}
+  virtual ~WorkersDOMHandler() {}
+
+ private:
+  // WebUIMessageHandler implementation.
+  virtual void RegisterMessages();
+
+  // Callback for "openDevTools" message.
+  void HandleOpenDevTools(const ListValue* args);
+
+  DISALLOW_COPY_AND_ASSIGN(WorkersDOMHandler);
+};
+
+void WorkersDOMHandler::RegisterMessages() {
+  web_ui_->RegisterMessageCallback("openDevTools",
+      NewCallback(this, &WorkersDOMHandler::HandleOpenDevTools));
+}
+
+static void OpenDevToolsOnIOThread(int worker_process_host_id,
+                                   int worker_route_id) {
+  WorkerDevToolsManager::GetInstance()->OpenDevToolsForWorker(
+      worker_process_host_id, worker_route_id);
+}
+
+void WorkersDOMHandler::HandleOpenDevTools(const ListValue* args) {
+  std::string worker_process_host_id_str;
+  std::string worker_route_id_str;
+  int worker_process_host_id;
+  int worker_route_id;
+  CHECK(args->GetSize() == 2);
+  CHECK(args->GetString(0, &worker_process_host_id_str));
+  CHECK(args->GetString(1, &worker_route_id_str));
+  CHECK(base::StringToInt(worker_process_host_id_str,
+                          &worker_process_host_id));
+  CHECK(base::StringToInt(worker_route_id_str, &worker_route_id));
+  BrowserThread::PostTask(BrowserThread::IO, FROM_HERE, NewRunnableFunction(
+      &OpenDevToolsOnIOThread, worker_process_host_id, worker_route_id));
+}
+
 }  // namespace
 
 WorkersUI::WorkersUI(TabContents* contents) : ChromeWebUI(contents) {
+  WorkersDOMHandler* handler = new WorkersDOMHandler();
+  AddMessageHandler(handler);
+  handler->Attach(this);
+
   WorkersUIHTMLSource* html_source = new WorkersUIHTMLSource();
 
   // Set up the chrome://workers/ source.
   contents->profile()->GetChromeURLDataManager()->AddDataSource(html_source);
 }