1/*
2 * Copyright (C) 2015 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
17package com.android.deskclock.settings;
18
19import android.app.AlertDialog;
20import android.content.Context;
21import android.content.res.Resources;
22import android.content.res.TypedArray;
23import android.os.Parcelable;
24import android.preference.DialogPreference;
25import android.support.annotation.NonNull;
26import android.util.AttributeSet;
27import android.view.View;
28import android.widget.NumberPicker;
29import android.widget.TextView;
30
31import com.android.deskclock.NumberPickerCompat;
32import com.android.deskclock.R;
33import com.android.deskclock.Utils;
34
35/**
36 * A dialog preference that shows a number picker for selecting snooze length
37 */
38public final class SnoozeLengthDialog extends DialogPreference {
39
40    private static final String DEFAULT_SNOOZE_TIME = "10";
41
42    private NumberPickerCompat mNumberPickerView;
43    private TextView mNumberPickerMinutesView;
44    private final Context mContext;
45    private int mSnoozeMinutes;
46
47    public SnoozeLengthDialog(Context context, AttributeSet attrs) {
48        super(context, attrs);
49        mContext = context;
50        setDialogLayoutResource(R.layout.snooze_length_picker);
51        setTitle(R.string.snooze_duration_title);
52    }
53
54    @Override
55    protected void onPrepareDialogBuilder(AlertDialog.Builder builder) {
56        super.onPrepareDialogBuilder(builder);
57        builder.setTitle(getContext().getString(R.string.snooze_duration_title))
58                .setCancelable(true);
59    }
60
61    @Override
62    protected void onBindDialogView(@NonNull View view) {
63        super.onBindDialogView(view);
64        mNumberPickerMinutesView = (TextView) view.findViewById(R.id.title);
65        mNumberPickerView = (NumberPickerCompat) view.findViewById(R.id.minutes_picker);
66        mNumberPickerView.setMinValue(1);
67        mNumberPickerView.setMaxValue(30);
68        mNumberPickerView.setValue(mSnoozeMinutes);
69        updateUnits();
70
71        mNumberPickerView.setOnAnnounceValueChangedListener(
72                new NumberPickerCompat.OnAnnounceValueChangedListener() {
73            @Override
74            public void onAnnounceValueChanged(NumberPicker picker, int value,
75                    String displayedValue) {
76                final String announceString = Utils.getNumberFormattedQuantityString(
77                        mContext, R.plurals.snooze_duration, value);
78                picker.announceForAccessibility(announceString);
79            }
80        });
81    }
82
83    @Override
84    protected void onSetInitialValue(boolean restorePersistedValue, Object defaultValue) {
85        String val;
86        if (restorePersistedValue) {
87            val = getPersistedString(DEFAULT_SNOOZE_TIME);
88            if (val != null) {
89                mSnoozeMinutes = Integer.parseInt(val);
90            }
91        } else {
92            val = (String) defaultValue;
93            if (val != null) {
94                mSnoozeMinutes = Integer.parseInt(val);
95            }
96            persistString(val);
97        }
98    }
99
100    @Override
101    protected Object onGetDefaultValue(TypedArray a, int index) {
102        return a.getString(index);
103    }
104
105    @Override
106    protected void onRestoreInstanceState(Parcelable state) {
107        // Restore the value to the NumberPicker.
108        super.onRestoreInstanceState(state);
109
110        // Update the unit display in response to the new value.
111        updateUnits();
112    }
113
114    private void updateUnits() {
115        if (mNumberPickerView != null) {
116            final Resources res = mContext.getResources();
117            final int value = mNumberPickerView.getValue();
118            final CharSequence units = res.getQuantityText(R.plurals.snooze_picker_label, value);
119            mNumberPickerMinutesView.setText(units);
120        }
121    }
122
123    @Override
124    protected void onDialogClosed(boolean positiveResult) {
125        if (positiveResult) {
126            mNumberPickerView.clearFocus();
127            mSnoozeMinutes = mNumberPickerView.getValue();
128            persistString(Integer.toString(mSnoozeMinutes));
129            setSummary();
130        }
131    }
132
133    public void setSummary() {
134        setSummary(Utils.getNumberFormattedQuantityString(mContext, R.plurals.snooze_duration,
135                mSnoozeMinutes));
136    }
137}