bluetooth: Impl uses new WebBluetoothDevice in content/browser.

content/child/bluetooth/bluetooth_dispatcher.cc

+// 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/child/bluetooth/bluetooth_dispatcher.h"
+
+#include "base/lazy_instance.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/message_loop/message_loop.h"
+#include "base/thread_task_runner_handle.h"
+#include "content/child/thread_safe_sender.h"
+#include "content/child/worker_thread_task_runner.h"
+#include "content/common/bluetooth/bluetooth_messages.h"
+#include "third_party/WebKit/public/platform/WebBluetoothDevice.h"
+#include "third_party/WebKit/public/platform/WebBluetoothError.h"
+
+using blink::WebBluetoothDevice;
+using blink::WebBluetoothError;
+using blink::WebBluetoothRequestDeviceCallbacks;
+using blink::WebString;
+
+namespace content {
+
+namespace {
+
+base::LazyInstance<base::ThreadLocalPointer<BluetoothDispatcher>>::Leaky
+    g_dispatcher_tls = LAZY_INSTANCE_INITIALIZER;
+
+BluetoothDispatcher* const kHasBeenDeleted =
+    reinterpret_cast<BluetoothDispatcher*>(0x1);
+
+int CurrentWorkerId() {
+  return WorkerTaskRunner::Instance()->CurrentWorkerId();
+}
+
+WebBluetoothError::ErrorType WebBluetoothErrorFromBluetoothError(
+    BluetoothError error_type) {
+  switch (error_type) {
+    case BluetoothError::NOT_FOUND:
+      return WebBluetoothError::NotFoundError;
+    case BluetoothError::SECURITY:
+      return WebBluetoothError::SecurityError;
+  }
+  NOTIMPLEMENTED();
+}
+
+}  // namespace
+
+BluetoothDispatcher::BluetoothDispatcher(ThreadSafeSender* sender)
+    : thread_safe_sender_(sender) {
+  g_dispatcher_tls.Pointer()->Set(this);
+}
+
+BluetoothDispatcher::~BluetoothDispatcher() {
+  g_dispatcher_tls.Pointer()->Set(kHasBeenDeleted);
+}
+
+BluetoothDispatcher* BluetoothDispatcher::GetOrCreateThreadSpecificInstance(
+    ThreadSafeSender* thread_safe_sender) {
+  if (g_dispatcher_tls.Pointer()->Get() == kHasBeenDeleted) {
+    NOTREACHED() << "Re-instantiating TLS BluetoothDispatcher.";
+    g_dispatcher_tls.Pointer()->Set(NULL);
+  }
+  if (g_dispatcher_tls.Pointer()->Get())
+    return g_dispatcher_tls.Pointer()->Get();
+
+  BluetoothDispatcher* dispatcher = new BluetoothDispatcher(thread_safe_sender);
+  if (WorkerTaskRunner::Instance()->CurrentWorkerId())
+    WorkerTaskRunner::Instance()->AddStopObserver(dispatcher);
+  return dispatcher;
+}
+
+bool BluetoothDispatcher::Send(IPC::Message* msg) {
+  return thread_safe_sender_->Send(msg);
+}
+
+void BluetoothDispatcher::OnMessageReceived(const IPC::Message& msg) {
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP(BluetoothDispatcher, msg)
+  IPC_MESSAGE_HANDLER(BluetoothMsg_RequestDeviceSuccess,
+                      OnRequestDeviceSuccess);
+  IPC_MESSAGE_HANDLER(BluetoothMsg_RequestDeviceError, OnRequestDeviceError);
+  IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP()
+  DCHECK(handled) << "Unhandled message:" << msg.type();
+}
+
+// TODO: Remove old void version after crrev.com/715613005 lands.
+void BluetoothDispatcher::requestDevice(
+    blink::WebCallbacks<void, blink::WebBluetoothError>* callbacks) {
+  int request_id = pending_requests_old_.Add(callbacks);
+  Send(new BluetoothHostMsg_RequestDevice(CurrentWorkerId(), request_id));
+}
+
+void BluetoothDispatcher::requestDevice(
+    blink::WebCallbacks<blink::WebBluetoothDevice, blink::WebBluetoothError>*
+        callbacks) {
+  int request_id = pending_requests_.Add(callbacks);
+  Send(new BluetoothHostMsg_RequestDevice(CurrentWorkerId(), request_id));
+}
+
+void BluetoothDispatcher::SetBluetoothMockDataSetForTesting(
+    const std::string& name) {
+  Send(new BluetoothHostMsg_SetBluetoothMockDataSetForTesting(name));
+}
+
+void BluetoothDispatcher::OnWorkerRunLoopStopped() {
+  delete this;
+}
+
+void BluetoothDispatcher::OnRequestDeviceSuccess(
+    int thread_id,
+    int request_id,
+    const std::string& device_instance_id) {
+  // TODO: Remove old void version after crrev.com/715613005 lands.
+  if (pending_requests_old_.Lookup(request_id)) {
+    pending_requests_old_.Lookup(request_id)->onSuccess();
+    pending_requests_old_.Remove(request_id);
+  } else {
+    pending_requests_.Lookup(request_id)
+        ->onSuccess(
+            new WebBluetoothDevice(WebString::fromUTF8(device_instance_id)));
+    pending_requests_.Remove(request_id);
+  }
+}
+
+void BluetoothDispatcher::OnRequestDeviceError(int thread_id,
+                                               int request_id,
+                                               BluetoothError error_type) {
+  // TODO: Remove old void version after crrev.com/715613005 lands.
+  if (pending_requests_old_.Lookup(request_id)) {
+    pending_requests_old_.Lookup(request_id)
+        ->onError(new WebBluetoothError(
+            WebBluetoothErrorFromBluetoothError(error_type), ""));
+    pending_requests_old_.Remove(request_id);
+  } else {
+    pending_requests_.Lookup(request_id)
+        ->onError(new WebBluetoothError(
+            WebBluetoothErrorFromBluetoothError(error_type), ""));
+    pending_requests_.Remove(request_id);
+  }
+}
+
+}  // namespace content