Extract kArcEnabled preference from ArcSessionManager part 2.

chrome/browser/chromeos/arc/arc_play_store_enabled_preference_handler.cc

Index: chrome/browser/chromeos/arc/arc_play_store_enabled_preference_handler.cc
diff --git a/chrome/browser/chromeos/arc/arc_play_store_enabled_preference_handler.cc b/chrome/browser/chromeos/arc/arc_play_store_enabled_preference_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..4e8a5ebafe8a00e3200e211b7a3b9ab6e7a8cb89
--- /dev/null
+++ b/chrome/browser/chromeos/arc/arc_play_store_enabled_preference_handler.cc
@@ -0,0 +1,145 @@
+// Copyright 2017 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/chromeos/arc/arc_play_store_enabled_preference_handler.h"
+
+#include "ash/common/shelf/shelf_delegate.h"
+#include "ash/common/wm_shell.h"
+#include "base/bind.h"
+#include "base/command_line.h"
+#include "base/logging.h"
+#include "chrome/browser/chromeos/arc/arc_auth_notification.h"
+#include "chrome/browser/chromeos/arc/arc_optin_uma.h"
+#include "chrome/browser/chromeos/arc/arc_session_manager.h"
+#include "chrome/browser/chromeos/arc/arc_support_host.h"
+#include "chrome/browser/chromeos/arc/arc_util.h"
+#include "chrome/browser/prefs/pref_service_syncable_util.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/pref_names.h"
+#include "chromeos/chromeos_switches.h"
+#include "components/sync_preferences/pref_service_syncable.h"
+#include "content/public/browser/browser_thread.h"
+
+namespace arc {
+
+ArcPlayStoreEnabledPreferenceHandler::ArcPlayStoreEnabledPreferenceHandler(
+    Profile* profile,
+    ArcSessionManager* arc_session_manager)
+    : profile_(profile),
+      arc_session_manager_(arc_session_manager),
+      weak_ptr_factory_(this) {
+  DCHECK(profile_);
+  DCHECK(arc_session_manager_);
+}
+
+ArcPlayStoreEnabledPreferenceHandler::~ArcPlayStoreEnabledPreferenceHandler() {
+  ArcAuthNotification::Hide();
+  sync_preferences::PrefServiceSyncable* pref_service_syncable =
+      PrefServiceSyncableFromProfile(profile_);
+  pref_service_syncable->RemoveObserver(this);
+  pref_change_registrar_.RemoveAll();
+}
+
+void ArcPlayStoreEnabledPreferenceHandler::Start() {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+
+  // Start observing Google Play Store enabled preference.
+  pref_change_registrar_.Init(profile_->GetPrefs());
+  pref_change_registrar_.Add(
+      prefs::kArcEnabled,
+      base::Bind(&ArcPlayStoreEnabledPreferenceHandler::OnPreferenceChanged,
+                 weak_ptr_factory_.GetWeakPtr()));
+
+  const bool is_play_store_enabled = IsArcPlayStoreEnabledForProfile(profile_);
+  VLOG(1) << "Start observing Google Play Store enabled preference. "
+          << "Initial value: " << is_play_store_enabled;
+  UpdateArcSessionManager();
+
+  if (is_play_store_enabled)
+    return;
+
+  // Google Play Store is initially disabled, here.
+
+  if (IsArcPlayStoreEnabledPreferenceManagedForProfile(profile_)) {
+    // All users that can disable Google Play Store by themselves will have
+    // the |kARcDataRemoveRequested| pref set, so we don't need to eagerly
+    // remove the data for that case.
+    // For managed users, the preference can change when the Profile object is
+    // not alive, so we still need to check it here in case it was disabled to
+    // ensure that the data is deleted in case it was disabled between
+    // launches.
+    VLOG(1) << "Google Play Store is initially disabled for managed "
+            << "profile. Removing data.";
+    arc_session_manager_->RemoveArcData();
+  }
+
+  // ArcAuthNotification may need to be shown.
+  PrefServiceSyncableFromProfile(profile_)->AddObserver(this);
+  OnIsSyncingChanged();
+}
+
+void ArcPlayStoreEnabledPreferenceHandler::OnPreferenceChanged() {
+  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
+
+  const bool is_play_store_enabled = IsArcPlayStoreEnabledForProfile(profile_);
+  if (!IsArcPlayStoreEnabledPreferenceManagedForProfile(profile_)) {
+    // Update UMA only for non-Managed cases.
+    UpdateOptInActionUMA(is_play_store_enabled ? OptInActionType::OPTED_IN
+                                               : OptInActionType::OPTED_OUT);
+
+    if (!is_play_store_enabled) {
+      // Remove the pinned Play Store icon launcher in Shelf.
+      // This is only for non-Managed cases. In managed cases, it is expected
+      // to be "disabled" rather than "removed", so keep it here.
+      auto* shelf_delegate = ash::WmShell::HasInstance()
+                                 ? ash::WmShell::Get()->shelf_delegate()
+                                 : nullptr;
+      if (shelf_delegate)
+        shelf_delegate->UnpinAppWithID(ArcSupportHost::kHostAppId);
+    }
+  }
+
+  // Hide auth notification if it was opened before and arc.enabled pref was
+  // explicitly set to true or false.
+  if (profile_->GetPrefs()->HasPrefPath(prefs::kArcEnabled))
+    ArcAuthNotification::Hide();
+
+  UpdateArcSessionManager();
+
+  // Due to life time management, OnArcPlayStoreEnabledChanged() is notified
+  // via ArcSessionManager, so that external services can subscribe at almost
+  // any time.
+  arc_session_manager_->NotifyArcPlayStoreEnabledChanged(is_play_store_enabled);
+}
+
+void ArcPlayStoreEnabledPreferenceHandler::UpdateArcSessionManager() {
+  auto* support_host = arc_session_manager_->support_host();
+  if (support_host) {
+    support_host->SetArcManaged(
+        IsArcPlayStoreEnabledPreferenceManagedForProfile(profile_));
+  }
+
+  if (IsArcPlayStoreEnabledForProfile(profile_))
+    arc_session_manager_->RequestEnable();
+  else
+    arc_session_manager_->RequestDisable();
+}
+
+void ArcPlayStoreEnabledPreferenceHandler::OnIsSyncingChanged() {
+  sync_preferences::PrefServiceSyncable* const pref_service_syncable =
+      PrefServiceSyncableFromProfile(profile_);
+  if (!pref_service_syncable->IsSyncing())
+    return;
+  pref_service_syncable->RemoveObserver(this);
+
+  // TODO(hidehiko): Extract kEnableArcOOBEOptIn check as a utility method.
+  if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+          chromeos::switches::kEnableArcOOBEOptIn) &&
+      profile_->IsNewProfile() &&
+      !profile_->GetPrefs()->HasPrefPath(prefs::kArcEnabled)) {
+    ArcAuthNotification::Show(profile_);
+  }
+}
+
+}  // namespace arc