Integrate UI with authentication flow.

blimp/client/core/android/java/src/org/chromium/blimp/core/BlimpClientContextImpl.java

 // 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.
 
 package org.chromium.blimp.core;
 
 import android.preference.PreferenceFragment;
 
+import org.chromium.base.CommandLine;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.base.annotations.JNINamespace;
 import org.chromium.blimp.core.settings.AboutBlimpPreferences;
+import org.chromium.blimp.core.settings.BlimpPreferencesDelegate;
 import org.chromium.blimp.core.settings.PreferencesUtil;
 import org.chromium.blimp_public.BlimpClientContext;
 import org.chromium.blimp_public.BlimpClientContextDelegate;
-import org.chromium.blimp_public.BlimpSettingsCallbacks;
 import org.chromium.blimp_public.contents.BlimpContents;
 
 /**
  * BlimpClientContextImpl is a Java wrapper to allow communicating with the native
  * BlimpClientContextImpl object.
  */
 @JNINamespace("blimp::client")
-public class BlimpClientContextImpl implements BlimpClientContext {
-
+public class BlimpClientContextImpl implements BlimpClientContext, BlimpPreferencesDelegate {
     // Delegate that contains functions Blimp needed in the embedder.
     private BlimpClientContextDelegate mDelegate;
 
     /**
      * Get embedder delegate which provides necessary functionality and callbacks.
      *
      * The delegate is created through JNI in early startup.
      *
      * @return BlimpClientContextDelegate, which contains functions we need in embedder.
      */
+    @Override
     public BlimpClientContextDelegate getDelegate() {
         return mDelegate;
     }
 
     @Override
-    public void setDelegate(BlimpClientContextDelegate delegate) {
-        mDelegate = delegate;
+    public void initSettingsPage(AboutBlimpPreferences preferences) {
+        nativeInitSettingsPage(mNativeBlimpClientContextImplAndroid, preferences);
     }
 
     @CalledByNative
     private static BlimpClientContextImpl create(long nativeBlimpClientContextImplAndroid) {
         return new BlimpClientContextImpl(nativeBlimpClientContextImplAndroid);
     }
 
     /**
      * The pointer to the BlimpClientContextImplAndroid JNI bridge.
      */
     private long mNativeBlimpClientContextImplAndroid;
 
     private BlimpClientContextImpl(long nativeBlimpClientContextImplAndroid) {
         mNativeBlimpClientContextImplAndroid = nativeBlimpClientContextImplAndroid;
     }
 
     @Override
     public BlimpContents createBlimpContents() {
         assert mNativeBlimpClientContextImplAndroid != 0;
         return nativeCreateBlimpContentsJava(mNativeBlimpClientContextImplAndroid);
     }
 
     @Override
     public boolean isBlimpSupported() {
         return true;
     }
 
     @Override
     public boolean isBlimpEnabled() {
-        return false;
+        return PreferencesUtil.isBlimpEnabled()
+                || CommandLine.getInstance().hasSwitch(BlimpClientSwitches.ENGINE_IP);
     }
 
     @Override
-    public void attachBlimpPreferences(
-            PreferenceFragment fragment, BlimpSettingsCallbacks callbacks) {
-        AboutBlimpPreferences.addBlimpPreferences(fragment);
-        AboutBlimpPreferences.registerCallback(callbacks);
+    public void attachBlimpPreferences(PreferenceFragment fragment) {
+        AboutBlimpPreferences.addBlimpPreferences(fragment, this);
     }
 
     @Override
+    public void setDelegate(BlimpClientContextDelegate delegate) {
+        mDelegate = delegate;
+    }
+
+    @Override
     public void connect() {
         assert mNativeBlimpClientContextImplAndroid != 0;
         nativeConnectFromJava(mNativeBlimpClientContextImplAndroid);
     }
 
     @CalledByNative
     private void clearNativePtr() {
         mNativeBlimpClientContextImplAndroid = 0;
     }
 
     @CalledByNative
     private long getNativePtr() {
         assert mNativeBlimpClientContextImplAndroid != 0;
         return mNativeBlimpClientContextImplAndroid;
     }
 
     @CalledByNative
     private String getAssignerUrl() {
         return PreferencesUtil.getLastUsedAssigner();
     }
 
     private native BlimpContents nativeCreateBlimpContentsJava(
             long nativeBlimpClientContextImplAndroid);
 
     private native void nativeConnectFromJava(long nativeBlimpClientContextImplAndroid);
+    private native void nativeInitSettingsPage(
+            long nativeBlimpClientContextImplAndroid, AboutBlimpPreferences preferences);
 }