ad1b7eb398
Bug: 13208692 Depends-On: I6847f7a5f275aee2f608de0237dab0e45c39b33f Change-Id: Ia410a473492aa7637449ba5a5dc068f98618ad03
324 lines
13 KiB
Java
324 lines
13 KiB
Java
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings;
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import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT;
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import android.app.ActivityManagerNative;
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import android.app.Dialog;
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import android.app.admin.DevicePolicyManager;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.content.res.Configuration;
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import android.content.res.Resources;
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import android.database.ContentObserver;
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import android.os.Bundle;
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import android.os.Handler;
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import android.os.RemoteException;
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import android.preference.CheckBoxPreference;
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import android.preference.ListPreference;
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import android.preference.Preference;
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import android.preference.Preference.OnPreferenceClickListener;
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import android.preference.PreferenceScreen;
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import android.provider.Settings;
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import android.provider.Settings.SettingNotFoundException;
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import android.util.Log;
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import com.android.internal.view.RotationPolicy;
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import com.android.settings.DreamSettings;
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import java.util.ArrayList;
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public class DisplaySettings extends SettingsPreferenceFragment implements
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Preference.OnPreferenceChangeListener, OnPreferenceClickListener {
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private static final String TAG = "DisplaySettings";
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/** If there is no setting in the provider, use this. */
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private static final int FALLBACK_SCREEN_TIMEOUT_VALUE = 30000;
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private static final String KEY_SCREEN_TIMEOUT = "screen_timeout";
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private static final String KEY_FONT_SIZE = "font_size";
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private static final String KEY_NOTIFICATION_PULSE = "notification_pulse";
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private static final String KEY_HEADS_UP = "heads_up";
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private static final String KEY_SCREEN_SAVER = "screensaver";
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private static final int DLG_GLOBAL_CHANGE_WARNING = 1;
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private WarnedListPreference mFontSizePref;
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private CheckBoxPreference mNotificationPulse;
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private final Configuration mCurConfig = new Configuration();
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private final Handler mHandler = new Handler();
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private ListPreference mScreenTimeoutPreference;
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private Preference mScreenSaverPreference;
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private CheckBoxPreference mHeadsUp;
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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final ContentResolver resolver = getActivity().getContentResolver();
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addPreferencesFromResource(R.xml.display_settings);
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mScreenSaverPreference = findPreference(KEY_SCREEN_SAVER);
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if (mScreenSaverPreference != null
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&& getResources().getBoolean(
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com.android.internal.R.bool.config_dreamsSupported) == false) {
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getPreferenceScreen().removePreference(mScreenSaverPreference);
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}
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mScreenTimeoutPreference = (ListPreference) findPreference(KEY_SCREEN_TIMEOUT);
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final long currentTimeout = Settings.System.getLong(resolver, SCREEN_OFF_TIMEOUT,
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FALLBACK_SCREEN_TIMEOUT_VALUE);
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mScreenTimeoutPreference.setValue(String.valueOf(currentTimeout));
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mScreenTimeoutPreference.setOnPreferenceChangeListener(this);
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disableUnusableTimeouts(mScreenTimeoutPreference);
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updateTimeoutPreferenceDescription(currentTimeout);
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mFontSizePref = (WarnedListPreference) findPreference(KEY_FONT_SIZE);
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mFontSizePref.setOnPreferenceChangeListener(this);
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mFontSizePref.setOnPreferenceClickListener(this);
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mNotificationPulse = (CheckBoxPreference) findPreference(KEY_NOTIFICATION_PULSE);
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if (mNotificationPulse != null
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&& getResources().getBoolean(
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com.android.internal.R.bool.config_intrusiveNotificationLed) == false) {
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getPreferenceScreen().removePreference(mNotificationPulse);
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} else {
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try {
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mNotificationPulse.setChecked(Settings.System.getInt(resolver,
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Settings.System.NOTIFICATION_LIGHT_PULSE) == 1);
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mNotificationPulse.setOnPreferenceChangeListener(this);
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} catch (SettingNotFoundException snfe) {
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Log.e(TAG, Settings.System.NOTIFICATION_LIGHT_PULSE + " not found");
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}
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}
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mHeadsUp = (CheckBoxPreference) findPreference(KEY_HEADS_UP);
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if (mHeadsUp != null) {
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updateHeadsUpMode(resolver);
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mHeadsUp.setOnPreferenceChangeListener(this);
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resolver.registerContentObserver(
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Settings.Global.getUriFor(Settings.Global.HEADS_UP),
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false, new ContentObserver(mHandler) {
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@Override
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public void onChange(boolean selfChange) {
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updateHeadsUpMode(resolver);
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}
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});
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}
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}
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private void updateTimeoutPreferenceDescription(long currentTimeout) {
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ListPreference preference = mScreenTimeoutPreference;
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String summary;
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if (currentTimeout < 0) {
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// Unsupported value
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summary = "";
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} else {
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final CharSequence[] entries = preference.getEntries();
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final CharSequence[] values = preference.getEntryValues();
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if (entries == null || entries.length == 0) {
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summary = "";
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} else {
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int best = 0;
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for (int i = 0; i < values.length; i++) {
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long timeout = Long.parseLong(values[i].toString());
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if (currentTimeout >= timeout) {
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best = i;
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}
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}
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summary = preference.getContext().getString(R.string.screen_timeout_summary,
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entries[best]);
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}
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}
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preference.setSummary(summary);
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}
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private void disableUnusableTimeouts(ListPreference screenTimeoutPreference) {
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final DevicePolicyManager dpm =
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(DevicePolicyManager) getActivity().getSystemService(
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Context.DEVICE_POLICY_SERVICE);
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final long maxTimeout = dpm != null ? dpm.getMaximumTimeToLock(null) : 0;
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if (maxTimeout == 0) {
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return; // policy not enforced
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}
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final CharSequence[] entries = screenTimeoutPreference.getEntries();
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final CharSequence[] values = screenTimeoutPreference.getEntryValues();
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ArrayList<CharSequence> revisedEntries = new ArrayList<CharSequence>();
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ArrayList<CharSequence> revisedValues = new ArrayList<CharSequence>();
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for (int i = 0; i < values.length; i++) {
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long timeout = Long.parseLong(values[i].toString());
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if (timeout <= maxTimeout) {
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revisedEntries.add(entries[i]);
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revisedValues.add(values[i]);
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}
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}
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if (revisedEntries.size() != entries.length || revisedValues.size() != values.length) {
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final int userPreference = Integer.parseInt(screenTimeoutPreference.getValue());
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screenTimeoutPreference.setEntries(
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revisedEntries.toArray(new CharSequence[revisedEntries.size()]));
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screenTimeoutPreference.setEntryValues(
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revisedValues.toArray(new CharSequence[revisedValues.size()]));
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if (userPreference <= maxTimeout) {
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screenTimeoutPreference.setValue(String.valueOf(userPreference));
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} else if (revisedValues.size() > 0
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&& Long.parseLong(revisedValues.get(revisedValues.size() - 1).toString())
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== maxTimeout) {
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// If the last one happens to be the same as the max timeout, select that
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screenTimeoutPreference.setValue(String.valueOf(maxTimeout));
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} else {
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// There will be no highlighted selection since nothing in the list matches
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// maxTimeout. The user can still select anything less than maxTimeout.
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// TODO: maybe append maxTimeout to the list and mark selected.
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}
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}
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screenTimeoutPreference.setEnabled(revisedEntries.size() > 0);
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}
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int floatToIndex(float val) {
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String[] indices = getResources().getStringArray(R.array.entryvalues_font_size);
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float lastVal = Float.parseFloat(indices[0]);
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for (int i=1; i<indices.length; i++) {
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float thisVal = Float.parseFloat(indices[i]);
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if (val < (lastVal + (thisVal-lastVal)*.5f)) {
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return i-1;
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}
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lastVal = thisVal;
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}
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return indices.length-1;
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}
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public void readFontSizePreference(ListPreference pref) {
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try {
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mCurConfig.updateFrom(ActivityManagerNative.getDefault().getConfiguration());
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} catch (RemoteException e) {
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Log.w(TAG, "Unable to retrieve font size");
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}
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// mark the appropriate item in the preferences list
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int index = floatToIndex(mCurConfig.fontScale);
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pref.setValueIndex(index);
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// report the current size in the summary text
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final Resources res = getResources();
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String[] fontSizeNames = res.getStringArray(R.array.entries_font_size);
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pref.setSummary(String.format(res.getString(R.string.summary_font_size),
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fontSizeNames[index]));
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}
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@Override
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public void onResume() {
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super.onResume();
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updateState();
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}
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@Override
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public Dialog onCreateDialog(int dialogId) {
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if (dialogId == DLG_GLOBAL_CHANGE_WARNING) {
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return Utils.buildGlobalChangeWarningDialog(getActivity(),
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R.string.global_font_change_title,
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new Runnable() {
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public void run() {
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mFontSizePref.click();
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}
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});
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}
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return null;
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}
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private void updateState() {
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readFontSizePreference(mFontSizePref);
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updateScreenSaverSummary();
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}
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private void updateScreenSaverSummary() {
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if (mScreenSaverPreference != null) {
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mScreenSaverPreference.setSummary(
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DreamSettings.getSummaryTextWithDreamName(getActivity()));
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}
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}
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private void updateHeadsUpMode(ContentResolver resolver) {
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mHeadsUp.setChecked(Settings.Global.HEADS_UP_ON == Settings.Global.getInt(resolver,
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Settings.Global.HEADS_UP, Settings.Global.HEADS_UP_OFF));
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}
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private void setHeadsUpMode(ContentResolver resolver, boolean value) {
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Settings.Global.putInt(resolver, Settings.Global.HEADS_UP,
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value ? Settings.Global.HEADS_UP_ON : Settings.Global.HEADS_UP_OFF);
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}
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public void writeFontSizePreference(Object objValue) {
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try {
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mCurConfig.fontScale = Float.parseFloat(objValue.toString());
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ActivityManagerNative.getDefault().updatePersistentConfiguration(mCurConfig);
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} catch (RemoteException e) {
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Log.w(TAG, "Unable to save font size");
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}
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}
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@Override
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public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) {
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if (preference == mNotificationPulse) {
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boolean value = mNotificationPulse.isChecked();
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Settings.System.putInt(getContentResolver(), Settings.System.NOTIFICATION_LIGHT_PULSE,
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value ? 1 : 0);
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return true;
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}
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if (preference == mHeadsUp) {
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final boolean value = mHeadsUp.isChecked();
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Log.d(TAG, "onPreferenceTreeClick mHeadsUp: " + value);
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setHeadsUpMode(getContentResolver(), value);
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return true;
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}
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return super.onPreferenceTreeClick(preferenceScreen, preference);
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}
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@Override
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public boolean onPreferenceChange(Preference preference, Object objValue) {
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final String key = preference.getKey();
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if (KEY_SCREEN_TIMEOUT.equals(key)) {
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try {
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int value = Integer.parseInt((String) objValue);
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Settings.System.putInt(getContentResolver(), SCREEN_OFF_TIMEOUT, value);
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updateTimeoutPreferenceDescription(value);
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} catch (NumberFormatException e) {
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Log.e(TAG, "could not persist screen timeout setting", e);
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}
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}
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if (KEY_FONT_SIZE.equals(key)) {
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writeFontSizePreference(objValue);
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}
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return true;
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}
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@Override
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public boolean onPreferenceClick(Preference preference) {
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if (preference == mFontSizePref) {
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if (Utils.hasMultipleUsers(getActivity())) {
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showDialog(DLG_GLOBAL_CHANGE_WARNING);
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return true;
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} else {
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mFontSizePref.click();
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}
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}
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return false;
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}
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}
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