Move API functions registrations out of ExtensionFunctionRegistry.

chrome/browser/extensions/api/system_private/system_private_api.cc

+// Copyright (c) 2012 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/extensions/api/system_private/system_private_api.h"
+
+#include "base/prefs/pref_service.h"
+#include "base/values.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/extensions/event_router_forwarder.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/pref_names.h"
+
+#if defined(OS_CHROMEOS)
+#include "chromeos/dbus/dbus_thread_manager.h"
+#include "chromeos/dbus/update_engine_client.h"
+#else
+#include "chrome/browser/upgrade_detector.h"
+#endif
+
+namespace {
+
+// Maps prefs::kIncognitoModeAvailability values (0 = enabled, ...)
+// to strings exposed to extensions.
+const char* kIncognitoModeAvailabilityStrings[] = {
+  "enabled",
+  "disabled",
+  "forced"
+};
+
+// Property keys.
+const char kBrightnessKey[] = "brightness";
+const char kDownloadProgressKey[] = "downloadProgress";
+const char kIsVolumeMutedKey[] = "isVolumeMuted";
+const char kStateKey[] = "state";
+const char kUserInitiatedKey[] = "userInitiated";
+const char kVolumeKey[] = "volume";
+
+// System update states.
+const char kNotAvailableState[] = "NotAvailable";
+const char kUpdatingState[] = "Updating";
+const char kNeedRestartState[] = "NeedRestart";
+
+// Event names.
+const char kOnBrightnessChanged[] = "systemPrivate.onBrightnessChanged";
+const char kOnVolumeChanged[] = "systemPrivate.onVolumeChanged";
+const char kOnScreenUnlocked[] = "systemPrivate.onScreenUnlocked";
+const char kOnWokeUp[] = "systemPrivate.onWokeUp";
+
+// Dispatches an extension event with |argument|
+void DispatchEvent(const std::string& event_name, base::Value* argument) {
+  scoped_ptr<base::ListValue> list_args(new base::ListValue());
+  if (argument) {
+    list_args->Append(argument);
+  }
+  g_browser_process->extension_event_router_forwarder()->
+      BroadcastEventToRenderers(event_name, list_args.Pass(), GURL());
+}
+
+}  // namespace
+
+namespace extensions {
+
+bool SystemPrivateGetIncognitoModeAvailabilityFunction::RunImpl() {
+  PrefService* prefs = profile_->GetPrefs();
+  int value = prefs->GetInteger(prefs::kIncognitoModeAvailability);
+  EXTENSION_FUNCTION_VALIDATE(
+      value >= 0 &&
+      value < static_cast<int>(arraysize(kIncognitoModeAvailabilityStrings)));
+  SetResult(Value::CreateStringValue(kIncognitoModeAvailabilityStrings[value]));
+  return true;
+}
+
+bool SystemPrivateGetUpdateStatusFunction::RunImpl() {
+  std::string state;
+  double download_progress = 0;
+#if defined(OS_CHROMEOS)
+  // With UpdateEngineClient, we can provide more detailed information about
+  // system updates on ChromeOS.
+  const chromeos::UpdateEngineClient::Status status =
+      chromeos::DBusThreadManager::Get()->GetUpdateEngineClient()->
+      GetLastStatus();
+  // |download_progress| is set to 1 after download finishes
+  // (i.e. verify, finalize and need-reboot phase) to indicate the progress
+  // even though |status.download_progress| is 0 in these phases.
+  switch (status.status) {
+    case chromeos::UpdateEngineClient::UPDATE_STATUS_ERROR:
+      state = kNotAvailableState;
+      break;
+    case chromeos::UpdateEngineClient::UPDATE_STATUS_IDLE:
+      state = kNotAvailableState;
+      break;
+    case chromeos::UpdateEngineClient::UPDATE_STATUS_CHECKING_FOR_UPDATE:
+      state = kNotAvailableState;
+      break;
+    case chromeos::UpdateEngineClient::UPDATE_STATUS_UPDATE_AVAILABLE:
+      state = kUpdatingState;
+      break;
+    case chromeos::UpdateEngineClient::UPDATE_STATUS_DOWNLOADING:
+      state = kUpdatingState;
+      download_progress = status.download_progress;
+      break;
+    case chromeos::UpdateEngineClient::UPDATE_STATUS_VERIFYING:
+      state = kUpdatingState;
+      download_progress = 1;
+      break;
+    case chromeos::UpdateEngineClient::UPDATE_STATUS_FINALIZING:
+      state = kUpdatingState;
+      download_progress = 1;
+      break;
+    case chromeos::UpdateEngineClient::UPDATE_STATUS_UPDATED_NEED_REBOOT:
+      state = kNeedRestartState;
+      download_progress = 1;
+      break;
+    case chromeos::UpdateEngineClient::UPDATE_STATUS_REPORTING_ERROR_EVENT:
+      state = kNotAvailableState;
+      break;
+  }
+#else
+  if (UpgradeDetector::GetInstance()->notify_upgrade()) {
+    state = kNeedRestartState;
+    download_progress = 1;
+  } else {
+    state = kNotAvailableState;
+  }
+#endif
+  DictionaryValue* dict = new DictionaryValue();
+  dict->SetString(kStateKey, state);
+  dict->SetDouble(kDownloadProgressKey, download_progress);
+  SetResult(dict);
+
+  return true;
+}
+
+void DispatchVolumeChangedEvent(double volume, bool is_volume_muted) {
+  DictionaryValue* dict = new DictionaryValue();
+  dict->SetDouble(kVolumeKey, volume);
+  dict->SetBoolean(kIsVolumeMutedKey, is_volume_muted);
+  DispatchEvent(kOnVolumeChanged, dict);
+}
+
+void DispatchBrightnessChangedEvent(int brightness, bool user_initiated) {
+  DictionaryValue* dict = new DictionaryValue();
+  dict->SetInteger(kBrightnessKey, brightness);
+  dict->SetBoolean(kUserInitiatedKey, user_initiated);
+  DispatchEvent(kOnBrightnessChanged, dict);
+}
+
+void DispatchScreenUnlockedEvent() {
+  DispatchEvent(kOnScreenUnlocked, NULL);
+}
+
+void DispatchWokeUpEvent() {
+  DispatchEvent(kOnWokeUp, NULL);
+}
+
+}  // namespace extensions