/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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package com.android.systemui.tuner;
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import android.app.AlertDialog;
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import android.app.Dialog;
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import android.app.DialogFragment;
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import android.content.Context;
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import android.content.DialogInterface;
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import android.content.DialogInterface.OnClickListener;
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import android.os.Bundle;
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import android.util.AttributeSet;
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import androidx.preference.ListPreference;
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import androidx.preference.ListPreferenceDialogFragment;
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public class CustomListPreference extends ListPreference {
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public CustomListPreference(Context context, AttributeSet attrs) {
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super(context, attrs);
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}
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public CustomListPreference(Context context, AttributeSet attrs, int defStyleAttr,
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int defStyleRes) {
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super(context, attrs, defStyleAttr, defStyleRes);
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}
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protected void onPrepareDialogBuilder(AlertDialog.Builder builder,
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OnClickListener listener) {
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}
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protected void onDialogClosed(boolean positiveResult) {
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}
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protected Dialog onDialogCreated(DialogFragment fragment, Dialog dialog) {
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return dialog;
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}
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protected boolean isAutoClosePreference() {
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return true;
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}
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/**
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* Called when a user is about to choose the given value, to determine if we
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* should show a confirmation dialog.
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*
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* @param value the value the user is about to choose
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* @return the message to show in a confirmation dialog, or {@code null} to
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* not request confirmation
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*/
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protected CharSequence getConfirmationMessage(String value) {
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return null;
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}
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protected void onDialogStateRestored(DialogFragment fragment, Dialog dialog,
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Bundle savedInstanceState) {
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}
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public static class CustomListPreferenceDialogFragment extends ListPreferenceDialogFragment {
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private static final String KEY_CLICKED_ENTRY_INDEX
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= "settings.CustomListPrefDialog.KEY_CLICKED_ENTRY_INDEX";
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private int mClickedDialogEntryIndex;
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public static ListPreferenceDialogFragment newInstance(String key) {
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final ListPreferenceDialogFragment fragment = new CustomListPreferenceDialogFragment();
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final Bundle b = new Bundle(1);
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b.putString(ARG_KEY, key);
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fragment.setArguments(b);
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return fragment;
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}
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public CustomListPreference getCustomizablePreference() {
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return (CustomListPreference) getPreference();
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}
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@Override
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protected void onPrepareDialogBuilder(AlertDialog.Builder builder) {
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super.onPrepareDialogBuilder(builder);
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mClickedDialogEntryIndex = getCustomizablePreference()
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.findIndexOfValue(getCustomizablePreference().getValue());
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getCustomizablePreference().onPrepareDialogBuilder(builder, getOnItemClickListener());
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if (!getCustomizablePreference().isAutoClosePreference()) {
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builder.setPositiveButton(com.android.internal.R.string.ok, new OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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onItemConfirmed();
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}
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});
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}
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}
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@Override
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public Dialog onCreateDialog(Bundle savedInstanceState) {
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Dialog dialog = super.onCreateDialog(savedInstanceState);
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if (savedInstanceState != null) {
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mClickedDialogEntryIndex = savedInstanceState.getInt(KEY_CLICKED_ENTRY_INDEX,
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mClickedDialogEntryIndex);
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}
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return getCustomizablePreference().onDialogCreated(this, dialog);
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}
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@Override
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public void onSaveInstanceState(Bundle outState) {
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super.onSaveInstanceState(outState);
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outState.putInt(KEY_CLICKED_ENTRY_INDEX, mClickedDialogEntryIndex);
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}
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@Override
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public void onActivityCreated(Bundle savedInstanceState) {
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super.onActivityCreated(savedInstanceState);
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getCustomizablePreference().onDialogStateRestored(this, getDialog(), savedInstanceState);
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}
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protected OnClickListener getOnItemClickListener() {
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return new OnClickListener() {
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@Override
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public void onClick(DialogInterface dialog, int which) {
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setClickedDialogEntryIndex(which);
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if (getCustomizablePreference().isAutoClosePreference()) {
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onItemConfirmed();
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}
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}
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};
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}
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protected void setClickedDialogEntryIndex(int which) {
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mClickedDialogEntryIndex = which;
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}
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private String getValue() {
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final ListPreference preference = getCustomizablePreference();
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if (mClickedDialogEntryIndex >= 0 && preference.getEntryValues() != null) {
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return preference.getEntryValues()[mClickedDialogEntryIndex].toString();
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} else {
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return null;
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}
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}
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protected void onItemConfirmed() {
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onClick(getDialog(), DialogInterface.BUTTON_POSITIVE);
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getDialog().dismiss();
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}
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@Override
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public void onDialogClosed(boolean positiveResult) {
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getCustomizablePreference().onDialogClosed(positiveResult);
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final ListPreference preference = getCustomizablePreference();
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final String value = getValue();
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if (positiveResult && value != null) {
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if (preference.callChangeListener(value)) {
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preference.setValue(value);
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}
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}
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}
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}
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}
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