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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 package com.android.car.settings.wifi;
     17 
     18 import android.content.Context;
     19 import android.content.Intent;
     20 import android.graphics.drawable.Drawable;
     21 import android.graphics.drawable.StateListDrawable;
     22 import android.net.wifi.WifiManager;
     23 import android.os.Bundle;
     24 import android.support.car.ui.PagedListView;
     25 import android.support.v7.widget.RecyclerView;
     26 import android.util.Log;
     27 import android.view.LayoutInflater;
     28 import android.view.View;
     29 import android.annotation.NonNull;
     30 import android.annotation.Nullable;
     31 import android.view.View.OnClickListener;
     32 import android.view.ViewGroup;
     33 import android.widget.ImageView;
     34 import android.widget.TextView;
     35 import android.widget.Toast;
     36 
     37 import com.android.car.settings.R;
     38 import com.android.car.settings.wifi.AccessPointListAdapter.ViewHolder;
     39 import com.android.settingslib.wifi.AccessPoint;
     40 
     41 import java.util.List;
     42 
     43 /**
     44  * Renders {@link AccessPoint} to a view to be displayed as a row in a list.
     45  */
     46 public class AccessPointListAdapter
     47         extends RecyclerView.Adapter<AccessPointListAdapter.ViewHolder>
     48         implements PagedListView.ItemCap {
     49     private static final String TAG = "AccessPointListAdapter";
     50     private static final int[] STATE_SECURED = {
     51             com.android.settingslib.R.attr.state_encrypted
     52     };
     53     private static final int[] STATE_NONE = {};
     54     private static int[] wifi_signal_attributes = {com.android.settingslib.R.attr.wifi_signal};
     55 
     56     private final StateListDrawable mWifiSld;
     57     private final Context mContext;
     58     private final CarWifiManager mCarWifiManager;
     59     private final WifiManager.ActionListener mConnectionListener;
     60 
     61     private List<AccessPoint> mAccessPoints;
     62 
     63     public AccessPointListAdapter(@NonNull Context context, CarWifiManager carWifiManager,
     64             @NonNull List<AccessPoint> accesssPoints) {
     65         mContext = context;
     66         mCarWifiManager = carWifiManager;
     67         mAccessPoints = accesssPoints;
     68         mWifiSld = (StateListDrawable) context.getTheme()
     69                 .obtainStyledAttributes(wifi_signal_attributes).getDrawable(0);
     70 
     71         mConnectionListener = new WifiManager.ActionListener() {
     72             @Override
     73             public void onSuccess() {
     74             }
     75             @Override
     76             public void onFailure(int reason) {
     77                 Toast.makeText(mContext,
     78                         R.string.wifi_failed_connect_message,
     79                         Toast.LENGTH_SHORT).show();
     80             }
     81         };
     82     }
     83 
     84     public void updateAccessPoints(@NonNull List<AccessPoint> accesssPoints) {
     85         mAccessPoints = accesssPoints;
     86         notifyDataSetChanged();
     87     }
     88 
     89     public boolean isEmpty() {
     90         return mAccessPoints.isEmpty();
     91     }
     92 
     93     public class ViewHolder extends RecyclerView.ViewHolder {
     94         private final ImageView mIcon;
     95         private final TextView mWifiName;
     96         private final TextView mWifiDesc;
     97 
     98         public ViewHolder(View view) {
     99             super(view);
    100             mWifiName = (TextView) view.findViewById(R.id.title);
    101             mWifiDesc = (TextView) view.findViewById(R.id.desc);
    102             mIcon = (ImageView) view.findViewById(R.id.icon);
    103         }
    104     }
    105 
    106     private class AccessPointClickListener implements OnClickListener {
    107         private final AccessPoint mAccessPoint;
    108 
    109         public AccessPointClickListener(AccessPoint accessPoint) {
    110             mAccessPoint = accessPoint;
    111         }
    112 
    113         @Override
    114         public void onClick(View v) {
    115             // for new open unsecuried wifi network, connect to it right away
    116             if (mAccessPoint.getSecurity() == AccessPoint.SECURITY_NONE &&
    117                     !mAccessPoint.isSaved() && !mAccessPoint.isActive()) {
    118                 mCarWifiManager.connectToPublicWifi(mAccessPoint, mConnectionListener);
    119             } else {
    120                 Intent intent = mAccessPoint.isSaved()
    121                         ? new Intent(mContext , WifiDetailActivity.class)
    122                         : new Intent(mContext, AddWifiActivity.class);
    123                 Bundle accessPointState = new Bundle();
    124                 mAccessPoint.saveWifiState(accessPointState);
    125                 intent.putExtras(accessPointState);
    126                 mContext.startActivity(intent);
    127             }
    128         }
    129     };
    130 
    131     @Override
    132     public AccessPointListAdapter.ViewHolder onCreateViewHolder(ViewGroup parent,
    133             int viewType) {
    134         View v = LayoutInflater.from(parent.getContext())
    135                 .inflate(R.layout.list_item, parent, false);
    136         ViewHolder vh = new ViewHolder(v);
    137         return vh;
    138     }
    139 
    140     @Override
    141     public void onBindViewHolder(ViewHolder holder, int position) {
    142         AccessPoint accessPoint = mAccessPoints.get(position);
    143         holder.itemView.setOnClickListener(new AccessPointClickListener(accessPoint));
    144         holder.mWifiName.setText(accessPoint.getConfigName());
    145         holder.mIcon.setImageDrawable(getIcon(accessPoint));
    146         String summary = accessPoint.getSummary();
    147         if (summary != null && !summary.isEmpty()) {
    148             holder.mWifiDesc.setText(summary);
    149             holder.mWifiDesc.setVisibility(View.VISIBLE);
    150         } else {
    151             holder.mWifiDesc.setVisibility(View.GONE);
    152         }
    153     }
    154 
    155     @Override
    156     public int getItemCount() {
    157         return mAccessPoints.size();
    158     }
    159 
    160     @Override
    161     public void setMaxItems(int maxItems) {
    162         // no limit in this list.
    163     }
    164 
    165     private Drawable getIcon(AccessPoint accessPoint) {
    166         mWifiSld.setState((accessPoint.getSecurity() != AccessPoint.SECURITY_NONE)
    167                 ? STATE_SECURED
    168                 : STATE_NONE);
    169         Drawable drawable = mWifiSld.getCurrent();
    170         drawable.setLevel(accessPoint.getLevel());
    171         drawable.invalidateSelf();
    172         return drawable;
    173     }
    174 }
    175