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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"); you may not use this file
      5  * except in compliance with the License. You may obtain a copy of the License at
      6  *
      7  *      http://www.apache.org/licenses/LICENSE-2.0
      8  *
      9  * Unless required by applicable law or agreed to in writing, software distributed under the
     10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
     11  * KIND, either express or implied. See the License for the specific language governing
     12  * permissions and limitations under the License.
     13  */
     14 
     15 package com.android.systemui.tuner;
     16 
     17 import android.app.AlertDialog.Builder;
     18 import android.app.Dialog;
     19 import android.app.DialogFragment;
     20 import android.app.Fragment;
     21 import android.content.Context;
     22 import android.content.DialogInterface.OnClickListener;
     23 import android.os.Bundle;
     24 import android.support.v14.preference.PreferenceFragment;
     25 import android.support.v7.preference.Preference;
     26 import android.support.v7.preference.PreferenceScreen;
     27 import android.util.AttributeSet;
     28 import android.util.Log;
     29 import android.view.View;
     30 import android.widget.Toolbar;
     31 
     32 import com.android.settingslib.Utils;
     33 import com.android.systemui.fragments.FragmentHostManager;
     34 import com.android.systemui.R;
     35 
     36 import java.util.Objects;
     37 
     38 public class RadioListPreference extends CustomListPreference {
     39 
     40     private OnClickListener mOnClickListener;
     41     private CharSequence mSummary;
     42 
     43     public RadioListPreference(Context context, AttributeSet attrs) {
     44         super(context, attrs);
     45     }
     46 
     47     @Override
     48     protected void onPrepareDialogBuilder(Builder builder, OnClickListener listener) {
     49         mOnClickListener = listener;
     50     }
     51 
     52     @Override
     53     public void setSummary(CharSequence summary) {
     54         super.setSummary(summary);
     55         mSummary = summary;
     56     }
     57 
     58     @Override
     59     public CharSequence getSummary() {
     60         if (mSummary == null || mSummary.toString().contains("%s")) {
     61             return super.getSummary();
     62         }
     63         return mSummary;
     64     }
     65 
     66     @Override
     67     protected Dialog onDialogCreated(DialogFragment fragment, Dialog dialog) {
     68         Dialog d = new Dialog(getContext(), android.R.style.Theme_DeviceDefault_Settings);
     69         Toolbar t = (Toolbar) d.findViewById(com.android.internal.R.id.action_bar);
     70         View v = new View(getContext());
     71         v.setId(R.id.content);
     72         d.setContentView(v);
     73         t.setTitle(getTitle());
     74         t.setNavigationIcon(Utils.getDrawable(d.getContext(), android.R.attr.homeAsUpIndicator));
     75         t.setNavigationOnClickListener(view -> d.dismiss());
     76 
     77         RadioFragment f = new RadioFragment();
     78         f.setPreference(this);
     79         FragmentHostManager.get(v).getFragmentManager()
     80                 .beginTransaction()
     81                 .add(android.R.id.content, f)
     82                 .commit();
     83         return d;
     84     }
     85 
     86     @Override
     87     protected void onDialogStateRestored(DialogFragment fragment, Dialog dialog,
     88             Bundle savedInstanceState) {
     89         super.onDialogStateRestored(fragment, dialog, savedInstanceState);
     90         View view = dialog.findViewById(R.id.content);
     91         RadioFragment radioFragment = (RadioFragment) FragmentHostManager.get(view)
     92                 .getFragmentManager().findFragmentById(R.id.content);
     93         if (radioFragment != null) {
     94             radioFragment.setPreference(this);
     95         }
     96     }
     97 
     98     @Override
     99     protected void onDialogClosed(boolean positiveResult) {
    100         super.onDialogClosed(positiveResult);
    101     }
    102 
    103     public static class RadioFragment extends TunerPreferenceFragment {
    104         private RadioListPreference mListPref;
    105 
    106         @Override
    107         public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
    108             Context context = getPreferenceManager().getContext();
    109             PreferenceScreen screen = getPreferenceManager().createPreferenceScreen(context);
    110             setPreferenceScreen(screen);
    111             if (mListPref != null) {
    112                 update();
    113             }
    114         }
    115 
    116         private void update() {
    117             Context context = getPreferenceManager().getContext();
    118 
    119             CharSequence[] entries = mListPref.getEntries();
    120             CharSequence[] values = mListPref.getEntryValues();
    121             CharSequence current = mListPref.getValue();
    122             for (int i = 0; i < entries.length; i++) {
    123                 CharSequence entry = entries[i];
    124                 SelectablePreference pref = new SelectablePreference(context);
    125                 getPreferenceScreen().addPreference(pref);
    126                 pref.setTitle(entry);
    127                 pref.setChecked(Objects.equals(current, values[i]));
    128                 pref.setKey(String.valueOf(i));
    129             }
    130         }
    131 
    132         @Override
    133         public boolean onPreferenceTreeClick(Preference preference) {
    134             mListPref.mOnClickListener.onClick(null, Integer.parseInt(preference.getKey()));
    135             return true;
    136         }
    137 
    138         public void setPreference(RadioListPreference radioListPreference) {
    139             mListPref = radioListPreference;
    140             if (getPreferenceManager() != null) {
    141                 update();
    142             }
    143         }
    144     }
    145 }
    146