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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.systemui.tuner;
import static com.android.systemui.BatteryMeterView.SHOW_PERCENT_SETTING;
import android.app.FragmentTransaction;
import android.database.ContentObserver;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.Preference.OnPreferenceClickListener;
import android.preference.PreferenceFragment;
import android.preference.PreferenceGroup;
import android.preference.SwitchPreference;
import android.provider.Settings.System;
import android.view.MenuItem;
import com.android.systemui.R;
import com.android.systemui.statusbar.phone.StatusBarIconController;
import com.android.systemui.tuner.TunerService.Tunable;
public class TunerFragment extends PreferenceFragment {
private static final String KEY_QS_TUNER = "qs_tuner";
private static final String KEY_BATTERY_PCT = "battery_pct";
private final SettingObserver mSettingObserver = new SettingObserver();
private SwitchPreference mBatteryPct;
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
addPreferencesFromResource(R.xml.tuner_prefs);
getActivity().getActionBar().setDisplayHomeAsUpEnabled(true);
setHasOptionsMenu(true);
findPreference(KEY_QS_TUNER).setOnPreferenceClickListener(new OnPreferenceClickListener() {
@Override
public boolean onPreferenceClick(Preference preference) {
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.replace(android.R.id.content, new QsTuner(), "QsTuner");
ft.addToBackStack(null);
ft.commit();
return false;
}
});
mBatteryPct = (SwitchPreference) findPreference(KEY_BATTERY_PCT);
}
@Override
public void onResume() {
super.onResume();
updateBatteryPct();
getContext().getContentResolver().registerContentObserver(
System.getUriFor(SHOW_PERCENT_SETTING), false, mSettingObserver);
registerPrefs(getPreferenceScreen());
}
@Override
public void onPause() {
super.onPause();
getContext().getContentResolver().unregisterContentObserver(mSettingObserver);
unregisterPrefs(getPreferenceScreen());
}
private void registerPrefs(PreferenceGroup group) {
TunerService tunerService = TunerService.get(getContext());
final int N = group.getPreferenceCount();
for (int i = 0; i < N; i++) {
Preference pref = group.getPreference(i);
if (pref instanceof StatusBarSwitch) {
tunerService.addTunable((Tunable) pref, StatusBarIconController.ICON_BLACKLIST);
} else if (pref instanceof PreferenceGroup) {
registerPrefs((PreferenceGroup) pref);
}
}
}
private void unregisterPrefs(PreferenceGroup group) {
TunerService tunerService = TunerService.get(getContext());
final int N = group.getPreferenceCount();
for (int i = 0; i < N; i++) {
Preference pref = group.getPreference(i);
if (pref instanceof Tunable) {
tunerService.removeTunable((Tunable) pref);
} else if (pref instanceof PreferenceGroup) {
registerPrefs((PreferenceGroup) pref);
}
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case android.R.id.home:
getActivity().finish();
return true;
}
return super.onOptionsItemSelected(item);
}
private void updateBatteryPct() {
mBatteryPct.setOnPreferenceChangeListener(null);
mBatteryPct.setChecked(System.getInt(getContext().getContentResolver(),
SHOW_PERCENT_SETTING, 0) != 0);
mBatteryPct.setOnPreferenceChangeListener(mBatteryPctChange);
}
private final class SettingObserver extends ContentObserver {
public SettingObserver() {
super(new Handler());
}
@Override
public void onChange(boolean selfChange, Uri uri, int userId) {
super.onChange(selfChange, uri, userId);
updateBatteryPct();
}
}
private final OnPreferenceChangeListener mBatteryPctChange = new OnPreferenceChangeListener() {
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
final boolean v = (Boolean) newValue;
System.putInt(getContext().getContentResolver(), SHOW_PERCENT_SETTING, v ? 1 : 0);
return true;
}
};
}
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