Add ArcNotificationManager for new ARC notification

ui/arc/notification/arc_notification_manager.cc

+// Copyright 2016 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 "ui/arc/notification/arc_notification_manager.h"
+
+#include "base/stl_util.h"
+#include "ui/arc/notification/arc_notification_item.h"
+
+namespace arc {
+
+ArcNotificationManager::ArcNotificationManager(ArcBridgeService* arc_bridge,
+                                               const AccountId& main_profile_id)
+    : arc_bridge_(arc_bridge),
+      main_profile_id_(main_profile_id),
+      binding_(this) {
+  // This must be initialized after ArcBridgeService.
+  DCHECK(arc_bridge_);
+  DCHECK_EQ(arc_bridge_, ArcBridgeService::Get());
+  arc_bridge_->AddObserver(this);
+}
+
+ArcNotificationManager::~ArcNotificationManager() {
+  // This should be free'd before ArcBridgeService.
+  DCHECK(ArcBridgeService::Get());
+  DCHECK_EQ(arc_bridge_, ArcBridgeService::Get());
+  arc_bridge_->RemoveObserver(this);
+}
+
+void ArcNotificationManager::OnNotificationsInstanceReady() {
+  NotificationsInstance* notifications_instance =
+      arc_bridge_->notifications_instance();
+  if (!notifications_instance) {
+    VLOG(2) << "Request to refresh app list when bridge service is not ready.";
+    return;
+  }
+
+  NotificationsHostPtr host;
+  binding_.Bind(mojo::GetProxy(&host));
+  notifications_instance->Init(std::move(host));
+}
+
+void ArcNotificationManager::OnNotificationPosted(ArcNotificationDataPtr data) {
+  ArcNotificationItem* item = items_.get(data->key);
+  if (!item) {
+    // Show a notification on the primary loged-in user's desktop.
+    // TODO(yoshiki): Reconsider when ARC supports multi-user.
+    item = new ArcNotificationItem(this, message_center::MessageCenter::Get(),
+                                   *data, main_profile_id_);

[dcheng, 2016/01/12 01:25:48]

Nit: I think it would be slightly clearer to only pass data->key

[yoshiki, 2016/01/12 04:50:25]

Done.

+    items_.set(data->key, make_scoped_ptr(item));
+  }
+  item->UpdateWithArcNotificationData(*data);
+}
+
+void ArcNotificationManager::OnNotificationRemoved(const mojo::String& key) {
+  ItemMap::iterator it = items_.find(key.get());
+  if (it == items_.end()) {
+    VLOG(3) << "Android requests to remove a notification (key: " << key
+            << "), but it is already gone.";
+    return;
+  }
+
+  scoped_ptr<ArcNotificationItem> item(items_.take_and_erase(it));
+  item->OnClosedFromAndroid();
+}
+
+void ArcNotificationManager::SendNotificationRemovedFromChrome(
+    const std::string& key) {
+  ItemMap::iterator it = items_.find(key);
+  if (it == items_.end()) {
+    VLOG(3) << "Chrome requests to remove a notification (key: " << key
+            << "), but it is already gone.";
+    return;
+  }
+
+  scoped_ptr<ArcNotificationItem> item(items_.take_and_erase(it));
+
+  arc_bridge_->notifications_instance()->SendNotificationEventToAndroid(
+      key, ARC_NOTIFICATION_EVENT_CLOSED);
+}
+
+void ArcNotificationManager::SendNotificationClickedOnChrome(
+    const std::string& key) {
+  if (!items_.contains(key)) {
+    VLOG(3) << "Chrome requests to fire a click event on notification (key: "
+            << key << "), but it is gone.";
+    return;
+  }
+
+  arc_bridge_->notifications_instance()->SendNotificationEventToAndroid(
+      key, ARC_NOTIFICATION_EVENT_BODY_CLICKED);
+}
+
+}  // namespace arc