| 1 | // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | package org.chromium.content.browser.input; |
| 6 | |
| 7 | import android.app.AlertDialog; |
| 8 | import android.content.Context; |
| 9 | import android.content.DialogInterface; |
| 10 | import android.content.DialogInterface.OnClickListener; |
| 11 | import android.os.Build; |
| 12 | import android.os.Bundle; |
| 13 | import android.view.View; |
| 14 | |
| 15 | import org.chromium.content.browser.input.TwoFieldDatePicker.OnMonthOrWeekChangedListener; |
| 16 | import org.chromium.content.R; |
| 17 | |
| 18 | public abstract class TwoFieldDatePickerDialog extends AlertDialog implements OnClickListener, |
| 19 | OnMonthOrWeekChangedListener { |
| 20 | |
| 21 | private static final String YEAR = "year"; |
| 22 | private static final String POSITION_IN_YEAR = "position_in_year"; |
| 23 | |
| 24 | protected final TwoFieldDatePicker mPicker; |
| 25 | protected final OnValueSetListener mCallBack; |
| 26 | |
| 27 | /** |
| 28 | * The callback used to indicate the user is done filling in the date. |
| 29 | */ |
| 30 | public interface OnValueSetListener { |
| 31 | |
| 32 | /** |
| 33 | * @param year The year that was set. |
| 34 | * @param positionInYear The week in year. |
| 35 | * with {@link java.util.Calendar}. |
| 36 | */ |
| 37 | void onValueSet(int year, int positionInYear); |
| 38 | } |
| 39 | |
| 40 | /** |
| 41 | * @param context The context the dialog is to run in. |
| 42 | * @param callBack How the parent is notified that the date is set. |
| 43 | * @param year The initial year of the dialog. |
| 44 | * @param weekOfYear The initial week of the dialog. |
| 45 | */ |
| 46 | public TwoFieldDatePickerDialog(Context context, |
| 47 | OnValueSetListener callBack, |
| 48 | int year, |
| 49 | int positionInYear, |
| 50 | long minValue, |
| 51 | long maxValue) { |
| 52 | this(context, 0, callBack, year, positionInYear, minValue, maxValue); |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * @param context The context the dialog is to run in. |
| 57 | * @param theme the theme to apply to this dialog |
| 58 | * @param callBack How the parent is notified that the date is set. |
| 59 | * @param year The initial year of the dialog. |
| 60 | * @param weekOfYear The initial week of the dialog. |
| 61 | */ |
| 62 | public TwoFieldDatePickerDialog(Context context, |
| 63 | int theme, |
| 64 | OnValueSetListener callBack, |
| 65 | int year, |
| 66 | int positionInYear, |
| 67 | long minValue, |
| 68 | long maxValue) { |
| 69 | super(context, theme); |
| 70 | |
| 71 | mCallBack = callBack; |
| 72 | |
| 73 | setButton(BUTTON_POSITIVE, context.getText( |
| 74 | R.string.date_picker_dialog_set), this); |
| 75 | setButton(BUTTON_NEGATIVE, context.getText(android.R.string.cancel), |
| 76 | (OnClickListener) null); |
| 77 | setIcon(0); |
| 78 | |
| 79 | mPicker = createPicker(context, minValue, maxValue); |
| 80 | setView(mPicker); |
| 81 | mPicker.init(year, positionInYear, this); |
| 82 | } |
| 83 | |
| 84 | protected TwoFieldDatePicker createPicker(Context context, long minValue, long maxValue) { |
| 85 | return null; |
| 86 | } |
| 87 | |
| 88 | @Override |
| 89 | public void onClick(DialogInterface dialog, int which) { |
| 90 | tryNotifyDateSet(); |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Notifies the listener, if such, that a date has been set. |
| 95 | */ |
| 96 | protected abstract void tryNotifyDateSet(); |
| 97 | |
| 98 | @Override |
| 99 | protected void onStop() { |
| 100 | if (Build.VERSION.SDK_INT >= 16) { |
| 101 | // The default behavior of dialogs changed in JellyBean and onwards. |
| 102 | // Dismissing a dialog (by pressing back for example) |
| 103 | // applies the chosen date. This code is added here so that the custom |
| 104 | // pickers behave the same as the internal DatePickerDialog. |
| 105 | tryNotifyDateSet(); |
| 106 | } |
| 107 | super.onStop(); |
| 108 | } |
| 109 | |
| 110 | @Override |
| 111 | public void onMonthOrWeekChanged(TwoFieldDatePicker view, int year, int positionInYear) { |
| 112 | mPicker.init(year, positionInYear, null); |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | * Sets the current date. |
| 117 | * |
| 118 | * @param year The date week year. |
| 119 | * @param weekOfYear The date week. |
| 120 | */ |
| 121 | public void updateDate(int year, int weekOfYear) { |
| 122 | mPicker.updateDate(year, weekOfYear); |
| 123 | } |
| 124 | } |