Android/app/src/main/java/com/moiseum/wolnelektury/view/main/NavigationAdapter.java

   1 package com.moiseum.wolnelektury.view.main;
   2
   3 import android.content.Context;
   4 import android.support.annotation.NonNull;
   5 import android.view.View;
   6 import android.view.ViewGroup;
   7
   8 import com.moiseum.wolnelektury.R;
   9 import com.moiseum.wolnelektury.base.WLApplication;
  10 import com.moiseum.wolnelektury.components.recycler.RecyclerAdapter;
  11 import com.moiseum.wolnelektury.components.recycler.ViewHolder;
  12 import com.moiseum.wolnelektury.utils.SharedPreferencesUtils;
  13
  14 /**
  15  * @author golonkos
  16  */
  17
  18 public class NavigationAdapter extends RecyclerAdapter<NavigationElement, ViewHolder<NavigationElement>> {
  19
  20         private static int TYPE_ITEM = 0;
  21         private static int TYPE_SEPARATOR = 1;
  22         private static int TYPE_SUPPORT = 2;
  23         private static int TYPE_BLANK = 3;
  24
  25         private final SupportUsListener supportUsListener;
  26
  27         private final SharedPreferencesUtils preferences = WLApplication.getInstance().getPreferences();
  28
  29         NavigationAdapter(Context context, SupportUsListener supportUsListener) {
  30                 super(context, Selection.SINGLE);
  31                 this.supportUsListener = supportUsListener;
  32                 setItems(NavigationElement.valuesForNavigation());
  33         }
  34
  35         @Override
  36         public int getItemViewType(int position) {
  37                 NavigationElement element = getItem(position);
  38                 if (element.requiresLogin() && !preferences.isUserLoggedIn()) {
  39                         return TYPE_BLANK;
  40                 }
  41
  42                 switch (element) {
  43                         case SEPARATOR:
  44                                 return TYPE_SEPARATOR;
  45                         case SUPPORT_US:
  46                                 return TYPE_SUPPORT;
  47                         default:
  48                                 return TYPE_ITEM;
  49                 }
  50         }
  51
  52         @NonNull
  53         @Override
  54         public ViewHolder<NavigationElement> onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
  55                 if (viewType == TYPE_SEPARATOR) {
  56                         return new SeparatorViewHolder(inflate(R.layout.navigation_separator_item, parent));
  57                 }
  58                 if (viewType == TYPE_SUPPORT) {
  59                         return new SupportViewHolder(inflate(R.layout.navigation_support_item, parent), supportUsListener);
  60                 }
  61                 if (viewType == TYPE_BLANK) {
  62                         return new NavigationBlankViewHolder(inflate(R.layout.navigation_blank, parent));
  63                 }
  64                 return new NavigationViewHolder(inflate(R.layout.navigation_item, parent));
  65         }
  66
  67         @Override
  68         protected String getItemId(NavigationElement item) {
  69                 return item.name();
  70         }
  71
  72         @Override
  73         protected void onItemClicked(View view, NavigationElement item, int position) {
  74                 if (item != NavigationElement.SEPARATOR && item != NavigationElement.SUPPORT_US) {
  75                         super.onItemClicked(view, item, position);
  76                 }
  77         }
  78
  79         interface SupportUsListener {
  80                 void onSupportUsClicked();
  81         }
  82 }