[android] Expanded/improved place page state observer interface to reuse it for simple place page controller

android/src/com/mapswithme/maps/widget/placepage/BannerController.java

@@ -4,9 +4,6 @@ import android.animation.ArgbEvaluator;
 import android.animation.ObjectAnimator;
 import android.content.Context;
 import android.content.res.Resources;
-import androidx.annotation.NonNull;
-import androidx.annotation.Nullable;
-import androidx.fragment.app.FragmentActivity;
 import android.text.TextUtils;
 import android.util.DisplayMetrics;
 import android.view.LayoutInflater;
@@ -15,6 +12,9 @@ import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.TextView;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.FragmentActivity;
 import com.mapswithme.maps.R;
 import com.mapswithme.maps.ads.AdTracker;
 import com.mapswithme.maps.ads.Banner;
@@ -465,8 +465,7 @@ final class BannerController implements PlacePageStateObserver
     banner.setLayoutParams(lp);
   }
 
-  @Override
-  public void onPlacePageStateChanged()
+  private void onPlacePageStateChanged()
   {
     if (mCurrentAd == null)
       return;
@@ -475,6 +474,24 @@ final class BannerController implements PlacePageStateObserver
     setBannerState(newState);
   }
 
+  @Override
+  public void onPlacePageDetails()
+  {
+    onPlacePageStateChanged();
+  }
+
+  @Override
+  public void onPlacePagePreview()
+  {
+    onPlacePageStateChanged();
+  }
+
+  @Override
+  public void onPlacePageClosed()
+  {
+    // Do nothing.
+  }
+
   private class MyNativeAdsListener implements NativeAdListener
   {
     @Nullable

android/src/com/mapswithme/maps/widget/placepage/PlacePageStateObserver.java

@@ -2,5 +2,7 @@ package com.mapswithme.maps.widget.placepage;
 
 public interface PlacePageStateObserver
 {
-  void onPlacePageStateChanged();
+  void onPlacePageDetails();
+  void onPlacePagePreview();
+  void onPlacePageClosed();
 }

android/src/com/mapswithme/maps/widget/placepage/RichPlacePageController.java

@@ -100,7 +100,7 @@ public class RichPlacePageController implements PlacePageController, LocationLis
     @Override
     public void onSheetDetailsOpened()
     {
-      mBannerController.onPlacePageStateChanged();
+      mBannerController.onPlacePageDetails();
       mPlacePageTracker.onDetails();
     }
 
@@ -108,7 +108,7 @@ public class RichPlacePageController implements PlacePageController, LocationLis
     public void onSheetCollapsed()
     {
       mPlacePage.resetScroll();
-      mBannerController.onPlacePageStateChanged();
+      mBannerController.onPlacePagePreview();
       setPeekHeight();
     }