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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 
     17 package com.android.tv.settings.connectivity.setup;
     18 
     19 import android.arch.lifecycle.ViewModelProviders;
     20 import android.content.Context;
     21 import android.net.IpConfiguration;
     22 import android.os.Bundle;
     23 import android.support.annotation.NonNull;
     24 import android.support.v17.leanback.widget.GuidanceStylist;
     25 import android.support.v17.leanback.widget.GuidedAction;
     26 import android.support.v4.app.Fragment;
     27 import android.support.v4.app.FragmentActivity;
     28 import android.text.TextUtils;
     29 import android.view.View;
     30 
     31 import com.android.tv.settings.R;
     32 import com.android.tv.settings.connectivity.util.AdvancedOptionsFlowUtil;
     33 import com.android.tv.settings.connectivity.util.State;
     34 import com.android.tv.settings.connectivity.util.StateMachine;
     35 
     36 import java.util.List;
     37 
     38 /**
     39  * State responsible for choosing IP settings.
     40  */
     41 public class IpSettingsState implements State {
     42     private final FragmentActivity mActivity;
     43     private Fragment mFragment;
     44 
     45     public IpSettingsState(FragmentActivity activity) {
     46         mActivity = activity;
     47     }
     48 
     49     @Override
     50     public void processForward() {
     51         mFragment = new IpSettingsFragment();
     52         FragmentChangeListener listener = (FragmentChangeListener) mActivity;
     53         if (listener != null) {
     54             listener.onFragmentChange(mFragment, true);
     55         }
     56     }
     57 
     58     @Override
     59     public void processBackward() {
     60         mFragment = new IpSettingsFragment();
     61         FragmentChangeListener listener = (FragmentChangeListener) mActivity;
     62         if (listener != null) {
     63             listener.onFragmentChange(mFragment, false);
     64         }
     65     }
     66 
     67 
     68     @Override
     69     public Fragment getFragment() {
     70         return mFragment;
     71     }
     72 
     73     /**
     74      * Fragment that makes user determine IP settings.
     75      */
     76     public static class IpSettingsFragment extends WifiConnectivityGuidedStepFragment {
     77         private static final int WIFI_ACTION_DHCP = 100001;
     78         private static final int WIFI_ACTION_STATIC = 100002;
     79         private StateMachine mStateMachine;
     80         private AdvancedOptionsFlowInfo mAdvancedOptionsFlowInfo;
     81 
     82         @NonNull
     83         @Override
     84         public GuidanceStylist.Guidance onCreateGuidance(Bundle savedInstanceState) {
     85             return new GuidanceStylist.Guidance(
     86                     getString(R.string.title_wifi_ip_settings),
     87                     null,
     88                     null,
     89                     null);
     90         }
     91 
     92         @Override
     93         public void onCreate(Bundle savedInstanceState) {
     94             mAdvancedOptionsFlowInfo = ViewModelProviders
     95                     .of(getActivity())
     96                     .get(AdvancedOptionsFlowInfo.class);
     97             mStateMachine = ViewModelProviders
     98                     .of(getActivity())
     99                     .get(StateMachine.class);
    100             super.onCreate(savedInstanceState);
    101         }
    102 
    103         @Override
    104         public void onViewCreated(@NonNull View view, Bundle savedInstanceState) {
    105             super.onViewCreated(view, savedInstanceState);
    106             CharSequence title;
    107             if (mAdvancedOptionsFlowInfo.containsPage(AdvancedOptionsFlowInfo.IP_SETTINGS)) {
    108                 title = mAdvancedOptionsFlowInfo.get(AdvancedOptionsFlowInfo.IP_SETTINGS);
    109             } else if (mAdvancedOptionsFlowInfo.getIpConfiguration().getIpAssignment()
    110                         == IpConfiguration.IpAssignment.STATIC) {
    111                 title = getString(R.string.wifi_action_static);
    112             } else {
    113                 title = getString(R.string.wifi_action_dhcp);
    114             }
    115             moveToPosition(title);
    116         }
    117 
    118         private void moveToPosition(CharSequence title) {
    119             if (title == null) return;
    120             for (int i = 0; i < getActions().size(); i++) {
    121                 if (TextUtils.equals(getActions().get(i).getTitle(), title)) {
    122                     setSelectedActionPosition(i);
    123                     break;
    124                 }
    125             }
    126         }
    127 
    128         @Override
    129         public void onCreateActions(@NonNull List<GuidedAction> actions,
    130                 Bundle savedInstanceState) {
    131             Context context = getActivity();
    132             actions.add(new GuidedAction.Builder(context)
    133                     .title(getString(R.string.wifi_action_dhcp))
    134                     .id(WIFI_ACTION_DHCP)
    135                     .build());
    136             actions.add(new GuidedAction.Builder(context)
    137                     .title(getString(R.string.wifi_action_static))
    138                     .id(WIFI_ACTION_STATIC)
    139                     .build());
    140         }
    141 
    142         @Override
    143         public void onGuidedActionClicked(GuidedAction action) {
    144             mAdvancedOptionsFlowInfo.put(AdvancedOptionsFlowInfo.IP_SETTINGS, action.getTitle());
    145             if (action.getId() == WIFI_ACTION_DHCP) {
    146                 AdvancedOptionsFlowUtil.processIpSettings(getActivity());
    147                 mStateMachine.getListener().onComplete(StateMachine.ADVANCED_FLOW_COMPLETE);
    148             } else if (action.getId() == WIFI_ACTION_STATIC) {
    149                 mStateMachine.getListener().onComplete(StateMachine.CONTINUE);
    150             }
    151         }
    152     }
    153 }
    154