Propagate connection info to Blimp android UI.

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
index 993b15503d8ba574bc887c48821d7261338fa800..4ce825535ce82d621ec3ebc71d5c88a9892f56b1 100644
--- a/blimp/client/core/settings/android/blimp_settings_android.cc
+++ b/blimp/client/core/settings/android/blimp_settings_android.cc
@@ -4,6 +4,10 @@
 
 #include "blimp/client/core/settings/android/blimp_settings_android.h"
 
+#include "base/android/jni_string.h"
+#include "base/bind.h"
+#include "blimp/client/core/session/connection_status.h"
+#include "blimp/client/core/settings/blimp_settings_delegate.h"
 #include "blimp/client/public/blimp_client_context.h"
 #include "jni/AboutBlimpPreferences_jni.h"
 
@@ -27,8 +31,7 @@ static jlong Init(JNIEnv* env,
   return reinterpret_cast<intptr_t>(new BlimpSettingsAndroid(env, jobj));
 }
 
-BlimpSettingsAndroid::BlimpSettingsAndroid(JNIEnv* env, jobject jobj)
-    : identity_source_(nullptr) {
+BlimpSettingsAndroid::BlimpSettingsAndroid(JNIEnv* env, jobject jobj) {
   java_obj_.Reset(env, jobj);
 }
 
@@ -40,21 +43,31 @@ BlimpSettingsAndroid::~BlimpSettingsAndroid() {
 void BlimpSettingsAndroid::Destroy(
     JNIEnv* env,
     const base::android::JavaParamRef<jobject>& jobj) {
-  DCHECK(identity_source_);
-  identity_source_->RemoveObserver(this);
+  if (delegate_) {
+    delegate_->GetIdentitySource()->RemoveObserver(this);
+    delegate_->GetConnectionStatus()->RemoveObserver(this);
+  }
+
   delete this;
 }
 
-void BlimpSettingsAndroid::SetIdentitySource(IdentitySource* identity_source) {
-  if (identity_source_) {
-    identity_source_->RemoveObserver(this);
-  }
-
-  identity_source_ = identity_source;
-  DCHECK(identity_source_);
+void BlimpSettingsAndroid::SetDelegate(BlimpSettingsDelegate* delegate) {
+  // Set the Delegate, it can only get called for once.
+  DCHECK(!delegate_ && delegate);
+  delegate_ = delegate;
 
   // Listen to sign in state change.
-  identity_source->AddObserver(this);
+  delegate_->GetIdentitySource()->AddObserver(this);
+
+  // Listen to connection state change.
+  ConnectionStatus* conn_status = delegate_->GetConnectionStatus();
+  DCHECK(conn_status);
+  conn_status->AddObserver(this);
+
+  // Propagate connection info if the client is connected to the engine.
+  if (conn_status->IsConnected() && conn_status->IsValid()) {
+    OnConnected();
+  }
 }
 
 void BlimpSettingsAndroid::OnSignedOut() {
@@ -75,5 +88,22 @@ void BlimpSettingsAndroid::OnActiveAccountLogin() {
   OnSignedIn();
 }
 
+void BlimpSettingsAndroid::OnConnected() {
+  DCHECK(delegate_);
+
+  JNIEnv* env = base::android::AttachCurrentThread();
+  std::string ip =
+      delegate_->GetConnectionStatus()->GetIpEndPoint().address().ToString();
+  base::android::ScopedJavaLocalRef<jstring> jengine_ip(
+      base::android::ConvertUTF8ToJavaString(env, ip));
+
+  Java_AboutBlimpPreferences_onConnected(env, java_obj_, jengine_ip);
+}
+
+void BlimpSettingsAndroid::OnDisconnected(int result) {
+  JNIEnv* env = base::android::AttachCurrentThread();
+  Java_AboutBlimpPreferences_onDisconnected(env, java_obj_);
+}
+
 }  // namespace client
 }  // namespace blimp