Host fingerprint mojo service within the device service.

services/device/fingerprint/fingerprint_impl_chromeos.cc

+// 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 "services/device/fingerprint/fingerprint_impl_chromeos.h"
+
+#include <string.h>
+
+#include "mojo/public/cpp/bindings/strong_binding.h"
+#include "services/device/fingerprint/fingerprint.h"
+
+namespace device {
+
+FingerprintImplChromeOS::FingerprintImplChromeOS() : weak_ptr_factory_(this) {}
+
+FingerprintImplChromeOS::~FingerprintImplChromeOS() {}
+
+void FingerprintImplChromeOS::GetFingerprintsList(
+    const GetFingerprintsListCallback& callback) {}
+
+void FingerprintImplChromeOS::StartEnroll(const std::string& user_id,
+                                          const std::string& label) {}
+
+void FingerprintImplChromeOS::CancelCurrentEnroll() {
+  // Call Dbus to canel current enroll and reset the current_enroll_path.
+  current_enroll_path_.reset();
+}
+
+void FingerprintImplChromeOS::GetLabel(int32_t index,
+                                       const GetLabelCallback& callback) {}
+
+void FingerprintImplChromeOS::SetLabel(const std::string& label,
+                                       int32_t index) {}
+
+void FingerprintImplChromeOS::RemoveEnrollment(int32_t index) {}
+
+void FingerprintImplChromeOS::StartAuthentication() {}
+
+void FingerprintImplChromeOS::EndCurrentAuthentication() {
+  // Call Dbus to canel current authentication and reset the current_auth_path.
+  current_auth_path_.reset();
+}
+
+void FingerprintImplChromeOS::DestroyAllEnrollments() {}
+
+void FingerprintImplChromeOS::AddBiodObserver(mojom::BiodObserverPtr observer) {
+  observer.set_connection_error_handler(
+      base::Bind(&FingerprintImplChromeOS::OnBiodObserverDisconnected,
+                 base::Unretained(this), observer.get()));
+  observers_.push_back(std::move(observer));
+}
+
+void FingerprintImplChromeOS::BiodBiometricClientRestarted() {
+  current_enroll_path_.reset();
+  current_auth_path_.reset();
+  for (auto& observer : observers_)
+    observer->OnRestarted();
+}
+
+void FingerprintImplChromeOS::BiometricsScanEventReceived(uint32_t scan_result,
+                                                          bool is_complete) {
+  if (is_complete)
+    current_enroll_path_.reset();
+
+  for (auto& observer : observers_)
+    observer->OnScanned(scan_result, is_complete);
+}
+
+void FingerprintImplChromeOS::BiometricsAttemptEventReceived(
+    uint32_t scan_result,
+    const std::vector<std::string>& recognized_user_ids) {
+  for (auto& observer : observers_)
+    observer->OnAttempt(scan_result, recognized_user_ids);
+}
+
+void FingerprintImplChromeOS::BiometricsFailureReceived() {
+  for (auto& observer : observers_)
+    observer->OnFailure();
+}
+
+void FingerprintImplChromeOS::OnBiodObserverDisconnected(
+    mojom::BiodObserver* observer) {
+  for (auto item = observers_.begin(); item != observers_.end(); ++item) {
+    if (item->get() == observer) {
+      observers_.erase(item);
+      break;
+    }
+  }
+}
+
+void FingerprintImplChromeOS::OnStartEnroll(
+    const dbus::ObjectPath& enroll_path) {
+  DCHECK(!current_enroll_path_);
+  current_enroll_path_ = base::MakeUnique<dbus::ObjectPath>(enroll_path);
+}
+
+void FingerprintImplChromeOS::OnStartAuthentication(
+    const dbus::ObjectPath& auth_path) {
+  DCHECK(!current_auth_path_);
+  current_auth_path_ = base::MakeUnique<dbus::ObjectPath>(auth_path);
+}
+
+void FingerprintImplChromeOS::OnGetFingerprintsList(
+    const GetFingerprintsListCallback& callback,
+    const std::vector<dbus::ObjectPath>& enrollment_paths) {}
+
+void FingerprintImplChromeOS::OnGetLabel(
+    int32_t index,
+    const GetLabelCallback& callback,
+    const std::vector<dbus::ObjectPath>& enrollment_paths) {
+  DCHECK(index >= 0 && index < int{enrollment_paths.size()});
+}
+
+void FingerprintImplChromeOS::OnSetLabel(
+    const std::string& new_label,
+    int index,
+    const std::vector<dbus::ObjectPath>& enrollment_paths) {
+  DCHECK(index >= 0 && index < int{enrollment_paths.size()});
+}
+
+void FingerprintImplChromeOS::OnRemoveEnrollment(
+    int index,
+    const std::vector<dbus::ObjectPath>& enrollment_paths) {
+  DCHECK(index >= 0 && index < int{enrollment_paths.size()});
+}
+
+// static
+void Fingerprint::CreateFingerprint(device::mojom::FingerprintRequest request) {
+  mojo::MakeStrongBinding(base::MakeUnique<FingerprintImplChromeOS>(),
+                          std::move(request));
+}
+
+}  // namespace device