Integrate UI with authentication flow.

blimp/client/core/settings/android/blimp_settings_android.cc

Index: blimp/client/core/settings/android/blimp_settings_android.cc
diff --git a/blimp/client/core/settings/android/blimp_settings_android.cc b/blimp/client/core/settings/android/blimp_settings_android.cc
new file mode 100644
index 0000000000000000000000000000000000000000..993b15503d8ba574bc887c48821d7261338fa800
--- /dev/null
+++ b/blimp/client/core/settings/android/blimp_settings_android.cc
@@ -0,0 +1,79 @@
+// 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 "blimp/client/core/settings/android/blimp_settings_android.h"
+
+#include "blimp/client/public/blimp_client_context.h"
+#include "jni/AboutBlimpPreferences_jni.h"
+
+namespace blimp {
+namespace client {
+
+// static
+bool BlimpSettingsAndroid::RegisterJni(JNIEnv* env) {
+  return RegisterNativesImpl(env);
+}
+
+// static
+BlimpSettingsAndroid* BlimpSettingsAndroid::FromJavaObject(JNIEnv* env,
+                                                           jobject jobj) {
+  return reinterpret_cast<BlimpSettingsAndroid*>(
+      Java_AboutBlimpPreferences_getNativePtr(env, jobj));
+}
+
+static jlong Init(JNIEnv* env,
+                  const base::android::JavaParamRef<jobject>& jobj) {
+  return reinterpret_cast<intptr_t>(new BlimpSettingsAndroid(env, jobj));
+}
+
+BlimpSettingsAndroid::BlimpSettingsAndroid(JNIEnv* env, jobject jobj)
+    : identity_source_(nullptr) {
+  java_obj_.Reset(env, jobj);
+}
+
+BlimpSettingsAndroid::~BlimpSettingsAndroid() {
+  Java_AboutBlimpPreferences_clearNativePtr(
+      base::android::AttachCurrentThread(), java_obj_);
+}
+
+void BlimpSettingsAndroid::Destroy(
+    JNIEnv* env,
+    const base::android::JavaParamRef<jobject>& jobj) {
+  DCHECK(identity_source_);
+  identity_source_->RemoveObserver(this);
+  delete this;
+}
+
+void BlimpSettingsAndroid::SetIdentitySource(IdentitySource* identity_source) {
+  if (identity_source_) {
+    identity_source_->RemoveObserver(this);
+  }
+
+  identity_source_ = identity_source;
+  DCHECK(identity_source_);
+
+  // Listen to sign in state change.
+  identity_source->AddObserver(this);
+}
+
+void BlimpSettingsAndroid::OnSignedOut() {
+  Java_AboutBlimpPreferences_onSignedOut(base::android::AttachCurrentThread(),
+                                         java_obj_);
+}
+
+void BlimpSettingsAndroid::OnSignedIn() {
+  Java_AboutBlimpPreferences_onSignedIn(base::android::AttachCurrentThread(),
+                                        java_obj_);
+}
+
+void BlimpSettingsAndroid::OnActiveAccountLogout() {
+  OnSignedOut();
+}
+
+void BlimpSettingsAndroid::OnActiveAccountLogin() {
+  OnSignedIn();
+}
+
+}  // namespace client
+}  // namespace blimp