nfc: Implement device::NfcTagChromeOS.

Implemented device::NfcTag for the Chrome OS platform. With this patch,
Chrome can now interact with remote NFC tags.

BUG=316471
TEST=device_unittests

Review URL: https://codereview.chromium.org/116143009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@245753 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 24 insertions, 1 deletions

diff --git a/chromeos/dbus/nfc_tag_client.cc b/chromeos/dbus/nfc_tag_client.cc
index de7e1ef..6c439fa 100644
--- a/chromeos/dbus/nfc_tag_client.cc
+++ b/chromeos/dbus/nfc_tag_client.cc
@@ -63,6 +63,16 @@ class NfcTagClientImpl : public NfcTagClient,
   }
 
   // NfcTagClient override.
+  virtual std::vector<dbus::ObjectPath> GetTagsForAdapter(
+      const dbus::ObjectPath& adapter_path) OVERRIDE {
+    DBusObjectMap* object_map =
+        adapters_to_object_maps_.GetObjectMap(adapter_path);
+    if (!object_map)
+      return std::vector<dbus::ObjectPath>();
+    return object_map->GetObjectPaths();
+  }
+
+  // NfcTagClient override.
   virtual Properties* GetProperties(
       const dbus::ObjectPath& object_path) OVERRIDE {
     return static_cast<Properties*>(
@@ -182,11 +192,16 @@ class NfcTagClientImpl : public NfcTagClient,
   // nfc_client_helpers::DBusObjectMap::Delegate override.
   virtual NfcPropertySet* CreateProperties(
       dbus::ObjectProxy* object_proxy) OVERRIDE {
-    return new Properties(
+    Properties* properties = new Properties(
         object_proxy,
         base::Bind(&NfcTagClientImpl::OnPropertyChanged,
                    weak_ptr_factory_.GetWeakPtr(),
                    object_proxy->object_path()));
+    properties->SetAllPropertiesReceivedCallback(
+        base::Bind(&NfcTagClientImpl::OnPropertiesReceived,
+                   weak_ptr_factory_.GetWeakPtr(),
+                   object_proxy->object_path()));
+    return properties;
   }
 
   // nfc_client_helpers::DBusObjectMap::Delegate override.
@@ -210,6 +225,14 @@ class NfcTagClientImpl : public NfcTagClient,
                       TagPropertyChanged(object_path, property_name));
   }
 
+  // Called by NfcPropertySet when all properties have been processed as a
+  // result of a call to GetAll.
+  void OnPropertiesReceived(const dbus::ObjectPath& object_path) {
+    VLOG(1) << "All tag properties received; Path: " << object_path.value();
+    FOR_EACH_OBSERVER(NfcTagClient::Observer, observers_,
+                      TagPropertiesReceived(object_path));
+  }
+
   // We maintain a pointer to the bus to be able to request proxies for
   // new NFC tags that appear.
   dbus::Bus* bus_;