| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| package org.chromium.content.browser.input; |
| |
| import android.app.AlertDialog; |
| import android.content.Context; |
| import android.content.DialogInterface; |
| import android.content.DialogInterface.OnClickListener; |
| import android.os.Build; |
| |
| import org.chromium.content.R; |
| import org.chromium.content.browser.input.TwoFieldDatePicker.OnMonthOrWeekChangedListener; |
| |
| public abstract class TwoFieldDatePickerDialog extends AlertDialog implements OnClickListener, |
| OnMonthOrWeekChangedListener { |
| |
| private static final String YEAR = "year"; |
| private static final String POSITION_IN_YEAR = "position_in_year"; |
| |
| protected final TwoFieldDatePicker mPicker; |
| protected final OnValueSetListener mCallBack; |
| |
| /** |
| * The callback used to indicate the user is done filling in the date. |
| */ |
| public interface OnValueSetListener { |
| |
| /** |
| * @param year The year that was set. |
| * @param positionInYear The position in the year that was set. |
| */ |
| void onValueSet(int year, int positionInYear); |
| } |
| |
| /** |
| * @param context The context the dialog is to run in. |
| * @param callBack How the parent is notified that the date is set. |
| * @param year The initial year of the dialog. |
| * @param weekOfYear The initial week of the dialog. |
| */ |
| public TwoFieldDatePickerDialog(Context context, |
| OnValueSetListener callBack, |
| int year, |
| int positionInYear, |
| double minValue, |
| double maxValue) { |
| this(context, 0, callBack, year, positionInYear, minValue, maxValue); |
| } |
| |
| /** |
| * @param context The context the dialog is to run in. |
| * @param theme the theme to apply to this dialog |
| * @param callBack How the parent is notified that the date is set. |
| * @param year The initial year of the dialog. |
| * @param weekOfYear The initial week of the dialog. |
| */ |
| public TwoFieldDatePickerDialog(Context context, |
| int theme, |
| OnValueSetListener callBack, |
| int year, |
| int positionInYear, |
| double minValue, |
| double maxValue) { |
| super(context, theme); |
| |
| mCallBack = callBack; |
| |
| setButton(BUTTON_POSITIVE, context.getText( |
| R.string.date_picker_dialog_set), this); |
| setButton(BUTTON_NEGATIVE, context.getText(android.R.string.cancel), |
| (OnClickListener) null); |
| setIcon(0); |
| |
| mPicker = createPicker(context, minValue, maxValue); |
| setView(mPicker); |
| mPicker.init(year, positionInYear, this); |
| } |
| |
| protected TwoFieldDatePicker createPicker(Context context, double minValue, double maxValue) { |
| return null; |
| } |
| |
| @Override |
| public void onClick(DialogInterface dialog, int which) { |
| tryNotifyDateSet(); |
| } |
| |
| /** |
| * Notifies the listener, if such, that a date has been set. |
| */ |
| protected void tryNotifyDateSet() { |
| if (mCallBack != null) { |
| mPicker.clearFocus(); |
| mCallBack.onValueSet(mPicker.getYear(), mPicker.getPositionInYear()); |
| } |
| } |
| |
| @Override |
| protected void onStop() { |
| if (Build.VERSION.SDK_INT >= 16) { |
| // The default behavior of dialogs changed in JellyBean and onwards. |
| // Dismissing a dialog (by pressing back for example) |
| // applies the chosen date. This code is added here so that the custom |
| // pickers behave the same as the internal DatePickerDialog. |
| tryNotifyDateSet(); |
| } |
| super.onStop(); |
| } |
| |
| @Override |
| public void onMonthOrWeekChanged(TwoFieldDatePicker view, int year, int positionInYear) { |
| mPicker.init(year, positionInYear, null); |
| } |
| |
| /** |
| * Sets the current date. |
| * |
| * @param year The date week year. |
| * @param weekOfYear The date week. |
| */ |
| public void updateDate(int year, int weekOfYear) { |
| mPicker.updateDate(year, weekOfYear); |
| } |
| } |