Make the engine private to the Sky package and expose the relevant public methods on PlatformViewAndroid

sky/shell/platform/android/org/domokit/sky/shell/PlatformViewAndroid.java

@@ -5,6 +5,7 @@
 package org.domokit.sky.shell;
 
 import android.content.Context;
+import android.content.res.Configuration;
 import android.opengl.Matrix;
 import android.graphics.Rect;
 import android.os.Build;
@@ -39,6 +40,7 @@ import org.chromium.mojom.pointer.PointerPacket;
 import org.chromium.mojom.pointer.PointerType;
 import org.chromium.mojom.raw_keyboard.RawKeyboardService;
 import org.chromium.mojom.semantics.SemanticsServer;
+import org.chromium.mojom.sky.AppLifecycleState;
 import org.chromium.mojom.sky.ServicesData;
 import org.chromium.mojom.sky.SkyEngine;
 import org.chromium.mojom.sky.ViewportMetrics;
@@ -46,6 +48,7 @@ import org.chromium.mojom.sky.ViewportMetrics;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 
 import org.domokit.editing.KeyboardImpl;
@@ -112,6 +115,8 @@ public class PlatformViewAndroid extends SurfaceView
         mRawKeyboardState = new RawKeyboardServiceState();
 
         mAccessibilityManager = (AccessibilityManager)getContext().getSystemService(Context.ACCESSIBILITY_SERVICE);
+
+        setLocale(getResources().getConfiguration().locale);
     }
 
     @Override
@@ -128,10 +133,36 @@ public class PlatformViewAndroid extends SurfaceView
         return super.onKeyDown(keyCode, event);
     }
 
-    public SkyEngine getEngine() {
+    SkyEngine getEngine() {
         return mSkyEngine;
     }
 
+    public void onPause() {
+        mSkyEngine.onAppLifecycleStateChanged(AppLifecycleState.PAUSED);
+    }
+
+    public void onResume() {
+        mSkyEngine.onAppLifecycleStateChanged(AppLifecycleState.RESUMED);
+    }
+
+    public void pushRoute(String route) {
+        mSkyEngine.pushRoute(route);
+    }
+
+    public void popRoute() {
+        mSkyEngine.popRoute();
+    }
+
+    private void setLocale(Locale locale) {
+        mSkyEngine.onLocaleChanged(locale.getLanguage(), locale.getCountry());
+    }
+
+    @Override
+    protected void onConfigurationChanged(Configuration newConfig) {
+        super.onConfigurationChanged(newConfig);
+        setLocale(newConfig.locale);
+    }
+
     float getDevicePixelRatio() {
         return mMetrics.devicePixelRatio;
     }

sky/shell/platform/android/org/domokit/sky/shell/SkyActivity.java

@@ -6,7 +6,6 @@ package org.domokit.sky.shell;
 
 import android.app.Activity;
 import android.content.Intent;
-import android.content.res.Configuration;
 import android.os.Build;
 import android.os.Bundle;
 import android.util.Log;
@@ -16,7 +15,6 @@ import android.view.WindowManager;
 
 import org.chromium.base.PathUtils;
 import org.chromium.base.TraceEvent;
-import org.chromium.mojom.sky.AppLifecycleState;
 import org.chromium.mojom.sky.EventType;
 import org.chromium.mojom.sky.InputEvent;
 
@@ -24,7 +22,6 @@ import org.domokit.activity.ActivityImpl;
 
 import java.io.File;
 import java.util.ArrayList;
-import java.util.Locale;
 
 
 /**
@@ -97,7 +94,7 @@ public class SkyActivity extends Activity {
     @Override
     public void onBackPressed() {
         if (mView != null) {
-            mView.getEngine().popRoute();
+            mView.popRoute();
             return;
         }
         super.onBackPressed();
@@ -107,7 +104,7 @@ public class SkyActivity extends Activity {
     protected void onPause() {
         super.onPause();
         if (mView != null) {
-            mView.getEngine().onAppLifecycleStateChanged(AppLifecycleState.PAUSED);
+            mView.onPause();
         }
     }
 
@@ -121,7 +118,7 @@ public class SkyActivity extends Activity {
     protected void onPostResume() {
         super.onPostResume();
         if (mView != null) {
-            mView.getEngine().onAppLifecycleStateChanged(AppLifecycleState.RESUMED);
+            mView.onResume();
         }
     }
 
@@ -131,10 +128,6 @@ public class SkyActivity extends Activity {
     protected void onSkyReady() {
         TraceEvent.instant("SkyActivity.onSkyReady");
 
-        Locale locale = getResources().getConfiguration().locale;
-        mView.getEngine().onLocaleChanged(locale.getLanguage(),
-                                          locale.getCountry());
-
         if (loadIntent(getIntent())) {
             return;
         }
@@ -158,18 +151,10 @@ public class SkyActivity extends Activity {
                                 intent.getStringExtra("snapshot"));
             String route = intent.getStringExtra("route");
             if (route != null)
-                mView.getEngine().pushRoute(route);
+                mView.pushRoute(route);
             return true;
         }
 
         return false;
     }
-
-    public void onConfigurationChanged(Configuration newConfig) {
-    	super.onConfigurationChanged(newConfig);
-
-        Locale locale = getResources().getConfiguration().locale;
-        mView.getEngine().onLocaleChanged(locale.getLanguage(),
-                                          locale.getCountry());
-    }
 }