chrome/browser/chromeos/file_system_provider/operations/operation.cc

   1 // Copyright 2014 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/browser/chromeos/file_system_provider/operations/operation.h"
   6
   7 #include "chrome/browser/chromeos/file_system_provider/provided_file_system_info.h"
   8 #include "extensions/browser/event_router.h"
   9
  10 namespace chromeos {
  11 namespace file_system_provider {
  12 namespace operations {
  13 namespace {
  14
  15 // Default implementation for dispatching an event. Can be replaced for unit
  16 // tests by Operation::SetDispatchEventImplForTest().
  17 bool DispatchEventImpl(extensions::EventRouter* event_router,
  18                        const std::string& extension_id,
  19                        scoped_ptr<extensions::Event> event) {
  20   if (!event_router->ExtensionHasEventListener(extension_id, event->event_name))
  21     return false;
  22
  23   event_router->DispatchEventToExtension(extension_id, event.Pass());
  24   return true;
  25 }
  26
  27 }  // namespace
  28
  29 Operation::Operation(extensions::EventRouter* event_router,
  30                      const ProvidedFileSystemInfo& file_system_info)
  31     : file_system_info_(file_system_info),
  32       dispatch_event_impl_(base::Bind(&DispatchEventImpl,
  33                                       event_router,
  34                                       file_system_info_.extension_id())) {
  35 }
  36
  37 Operation::~Operation() {
  38 }
  39
  40 void Operation::SetDispatchEventImplForTesting(
  41     const DispatchEventImplCallback& callback) {
  42   dispatch_event_impl_ = callback;
  43 }
  44
  45 bool Operation::SendEvent(int request_id,
  46                           extensions::events::HistogramValue histogram_value,
  47                           const std::string& event_name,
  48                           scoped_ptr<base::ListValue> event_args) {
  49   return dispatch_event_impl_.Run(make_scoped_ptr(
  50       new extensions::Event(histogram_value, event_name, event_args.Pass())));
  51 }
  52
  53 }  // namespace operations
  54 }  // namespace file_system_provider
  55 }  // namespace chromeos