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      1 /*
      2  * Copyright (C) 2016 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.system;
     18 
     19 import android.content.Context;
     20 import android.media.tv.TvInputInfo;
     21 import android.os.Bundle;
     22 import android.os.UserHandle;
     23 import android.support.annotation.NonNull;
     24 import android.support.v17.preference.LeanbackPreferenceFragment;
     25 import android.support.v7.preference.Preference;
     26 import android.support.v7.preference.PreferenceGroup;
     27 import android.support.v7.preference.TwoStatePreference;
     28 import android.text.TextUtils;
     29 
     30 import com.android.tv.settings.R;
     31 import com.android.tv.settings.RadioPreference;
     32 
     33 import java.util.Map;
     34 import java.util.Set;
     35 
     36 public class InputOptionsFragment extends LeanbackPreferenceFragment implements
     37         InputCustomNameFragment.Callback {
     38 
     39     private static final String KEY_SHOW_INPUT = "show_input";
     40     private static final String KEY_NAMES = "names";
     41     private static final String KEY_NAME_DEFAULT = "name_default";
     42     private static final String KEY_NAME_CUSTOM = "name_custom";
     43 
     44     private static final String ARG_INPUT = "input";
     45 
     46     private TwoStatePreference mShowPref;
     47     private PreferenceGroup mNamesGroup;
     48     private TwoStatePreference mNameDefaultPref;
     49     private TwoStatePreference mNameCustomPref;
     50 
     51     private Map<String, String> mCustomLabels;
     52     private Set<String> mHiddenIds;
     53 
     54     private TvInputInfo mInputInfo;
     55 
     56     public static void prepareArgs(@NonNull Bundle args, TvInputInfo inputInfo) {
     57         args.putParcelable(ARG_INPUT, inputInfo);
     58     }
     59 
     60     @Override
     61     public void onCreate(Bundle savedInstanceState) {
     62         mInputInfo = getArguments().getParcelable(ARG_INPUT);
     63 
     64         super.onCreate(savedInstanceState);
     65 
     66         final Context context = getContext();
     67         mCustomLabels =
     68                 TvInputInfo.TvInputSettings.getCustomLabels(context, UserHandle.USER_SYSTEM);
     69         mHiddenIds =
     70                 TvInputInfo.TvInputSettings.getHiddenTvInputIds(context, UserHandle.USER_SYSTEM);
     71 
     72     }
     73 
     74     @Override
     75     public void onResume() {
     76         super.onResume();
     77         refresh();
     78     }
     79 
     80     @Override
     81     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
     82         setPreferencesFromResource(R.xml.input_options, null);
     83         getPreferenceScreen().setTitle(mInputInfo.loadLabel(getContext()));
     84 
     85         mShowPref = (TwoStatePreference) findPreference(KEY_SHOW_INPUT);
     86 
     87         mNamesGroup = (PreferenceGroup) findPreference(KEY_NAMES);
     88 
     89         mNameDefaultPref = (TwoStatePreference) findPreference(KEY_NAME_DEFAULT);
     90         mNameCustomPref = (TwoStatePreference) findPreference(KEY_NAME_CUSTOM);
     91 
     92     }
     93 
     94     private void refresh() {
     95 
     96         mShowPref.setChecked(!mHiddenIds.contains(mInputInfo.getId()));
     97 
     98         final CharSequence defaultLabel = mInputInfo.loadLabel(getContext());
     99         final CharSequence customLabel = mCustomLabels.get(mInputInfo.getId());
    100 
    101         boolean nameMatched = false;
    102         for (int i = 0; i < mNamesGroup.getPreferenceCount(); i++) {
    103             final TwoStatePreference namePref = (TwoStatePreference) mNamesGroup.getPreference(i);
    104 
    105             if (TextUtils.equals(namePref.getKey(), KEY_NAME_DEFAULT)
    106                     || TextUtils.equals(namePref.getKey(), KEY_NAME_CUSTOM)) {
    107                 continue;
    108             }
    109             final boolean nameMatch = TextUtils.equals(namePref.getTitle(), customLabel);
    110             namePref.setChecked(nameMatch);
    111             nameMatched |= nameMatch;
    112         }
    113 
    114         mNameDefaultPref.setTitle(defaultLabel);
    115 
    116         final boolean nameIsDefault = TextUtils.isEmpty(customLabel);
    117         mNameDefaultPref.setChecked(nameIsDefault);
    118 
    119         InputCustomNameFragment.prepareArgs(mNameCustomPref.getExtras(), defaultLabel,
    120                 nameIsDefault ? defaultLabel : customLabel);
    121 
    122         if (!nameIsDefault && !nameMatched) {
    123             mNameCustomPref.setChecked(true);
    124             mNameCustomPref.setSummary(customLabel);
    125         } else {
    126             mNameCustomPref.setChecked(false);
    127             mNameCustomPref.setSummary(null);
    128         }
    129     }
    130 
    131     @Override
    132     public boolean onPreferenceTreeClick(Preference preference) {
    133         final String key = preference.getKey();
    134         if (key == null) {
    135             return super.onPreferenceTreeClick(preference);
    136         }
    137         if (preference instanceof RadioPreference) {
    138             final RadioPreference radioPreference = (RadioPreference) preference;
    139             radioPreference.setChecked(true);
    140             radioPreference.clearOtherRadioPreferences(mNamesGroup);
    141 
    142             if (TextUtils.equals(key, KEY_NAME_CUSTOM)) {
    143                 return super.onPreferenceTreeClick(preference);
    144             } else if (TextUtils.equals(key, KEY_NAME_DEFAULT)) {
    145                 setInputName(null);
    146                 return true;
    147             } else {
    148                 setInputName(preference.getTitle());
    149             }
    150         }
    151         switch (key) {
    152             case KEY_SHOW_INPUT:
    153                 setInputVisible(((TwoStatePreference) preference).isChecked());
    154                 return true;
    155         }
    156         return super.onPreferenceTreeClick(preference);
    157     }
    158 
    159     private void setInputName(CharSequence name) {
    160         if (TextUtils.isEmpty(name)) {
    161             mCustomLabels.remove(mInputInfo.getId());
    162         } else {
    163             mCustomLabels.put(mInputInfo.getId(), name.toString());
    164         }
    165 
    166         TvInputInfo.TvInputSettings
    167                 .putCustomLabels(getContext(), mCustomLabels, UserHandle.USER_SYSTEM);
    168     }
    169 
    170     private void setInputVisible(boolean visible) {
    171         final boolean wasVisible = !mHiddenIds.contains(mInputInfo.getId());
    172 
    173         if (wasVisible == visible) {
    174             return;
    175         }
    176 
    177         if (visible) {
    178             mHiddenIds.remove(mInputInfo.getId());
    179         } else {
    180             mHiddenIds.add(mInputInfo.getId());
    181         }
    182 
    183         TvInputInfo.TvInputSettings
    184                 .putHiddenTvInputs(getContext(), mHiddenIds, UserHandle.USER_SYSTEM);
    185     }
    186 
    187     @Override
    188     public void onSetCustomName(CharSequence name) {
    189         setInputName(name);
    190     }
    191 }
    192