| /* |
| * Copyright (C) 2010 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.settings; |
| |
| import com.android.internal.view.RotationPolicy; |
| import com.android.settings.notification.DropDownPreference; |
| import com.android.settings.notification.DropDownPreference.Callback; |
| import com.android.settings.search.BaseSearchIndexProvider; |
| import com.android.settings.search.Indexable; |
| |
| import static android.provider.Settings.Secure.DOZE_ENABLED; |
| import static android.provider.Settings.Secure.WAKE_GESTURE_ENABLED; |
| import static android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE; |
| import static android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE_AUTOMATIC; |
| import static android.provider.Settings.System.SCREEN_BRIGHTNESS_MODE_MANUAL; |
| import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT; |
| |
| import android.app.Activity; |
| import android.app.ActivityManagerNative; |
| import android.app.Dialog; |
| import android.app.admin.DevicePolicyManager; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.res.Configuration; |
| import android.content.res.Resources; |
| import android.hardware.Sensor; |
| import android.hardware.SensorManager; |
| import android.os.Build; |
| import android.os.Bundle; |
| import android.os.RemoteException; |
| import android.os.SystemProperties; |
| import android.preference.ListPreference; |
| import android.preference.Preference; |
| import android.preference.Preference.OnPreferenceClickListener; |
| import android.preference.PreferenceScreen; |
| import android.preference.SwitchPreference; |
| import android.provider.SearchIndexableResource; |
| import android.provider.Settings; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class DisplaySettings extends SettingsPreferenceFragment implements |
| Preference.OnPreferenceChangeListener, OnPreferenceClickListener, Indexable { |
| private static final String TAG = "DisplaySettings"; |
| |
| /** If there is no setting in the provider, use this. */ |
| private static final int FALLBACK_SCREEN_TIMEOUT_VALUE = 30000; |
| |
| private static final String KEY_SCREEN_TIMEOUT = "screen_timeout"; |
| private static final String KEY_FONT_SIZE = "font_size"; |
| private static final String KEY_SCREEN_SAVER = "screensaver"; |
| private static final String KEY_LIFT_TO_WAKE = "lift_to_wake"; |
| private static final String KEY_DOZE = "doze"; |
| private static final String KEY_AUTO_BRIGHTNESS = "auto_brightness"; |
| private static final String KEY_AUTO_ROTATE = "auto_rotate"; |
| |
| private static final int DLG_GLOBAL_CHANGE_WARNING = 1; |
| |
| private WarnedListPreference mFontSizePref; |
| |
| private final Configuration mCurConfig = new Configuration(); |
| |
| private ListPreference mScreenTimeoutPreference; |
| private Preference mScreenSaverPreference; |
| private SwitchPreference mLiftToWakePreference; |
| private SwitchPreference mDozePreference; |
| private SwitchPreference mAutoBrightnessPreference; |
| |
| @Override |
| public void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| final Activity activity = getActivity(); |
| final ContentResolver resolver = activity.getContentResolver(); |
| |
| addPreferencesFromResource(R.xml.display_settings); |
| |
| mScreenSaverPreference = findPreference(KEY_SCREEN_SAVER); |
| if (mScreenSaverPreference != null |
| && getResources().getBoolean( |
| com.android.internal.R.bool.config_dreamsSupported) == false) { |
| getPreferenceScreen().removePreference(mScreenSaverPreference); |
| } |
| |
| mScreenTimeoutPreference = (ListPreference) findPreference(KEY_SCREEN_TIMEOUT); |
| final long currentTimeout = Settings.System.getLong(resolver, SCREEN_OFF_TIMEOUT, |
| FALLBACK_SCREEN_TIMEOUT_VALUE); |
| mScreenTimeoutPreference.setValue(String.valueOf(currentTimeout)); |
| mScreenTimeoutPreference.setOnPreferenceChangeListener(this); |
| disableUnusableTimeouts(mScreenTimeoutPreference); |
| updateTimeoutPreferenceDescription(currentTimeout); |
| |
| mFontSizePref = (WarnedListPreference) findPreference(KEY_FONT_SIZE); |
| mFontSizePref.setOnPreferenceChangeListener(this); |
| mFontSizePref.setOnPreferenceClickListener(this); |
| |
| if (isAutomaticBrightnessAvailable(getResources())) { |
| mAutoBrightnessPreference = (SwitchPreference) findPreference(KEY_AUTO_BRIGHTNESS); |
| mAutoBrightnessPreference.setOnPreferenceChangeListener(this); |
| } else { |
| removePreference(KEY_AUTO_BRIGHTNESS); |
| } |
| |
| if (isLiftToWakeAvailable(activity)) { |
| mLiftToWakePreference = (SwitchPreference) findPreference(KEY_LIFT_TO_WAKE); |
| mLiftToWakePreference.setOnPreferenceChangeListener(this); |
| } else { |
| removePreference(KEY_LIFT_TO_WAKE); |
| } |
| |
| if (isDozeAvailable(activity)) { |
| mDozePreference = (SwitchPreference) findPreference(KEY_DOZE); |
| mDozePreference.setOnPreferenceChangeListener(this); |
| } else { |
| removePreference(KEY_DOZE); |
| } |
| |
| if (RotationPolicy.isRotationLockToggleVisible(activity)) { |
| DropDownPreference rotatePreference = |
| (DropDownPreference) findPreference(KEY_AUTO_ROTATE); |
| rotatePreference.addItem(activity.getString(R.string.display_auto_rotate_rotate), |
| false); |
| int rotateLockedResourceId; |
| // The following block sets the string used when rotation is locked. |
| // If the device locks specifically to portrait or landscape (rather than current |
| // rotation), then we use a different string to include this information. |
| if (allowAllRotations(activity)) { |
| rotateLockedResourceId = R.string.display_auto_rotate_stay_in_current; |
| } else { |
| if (RotationPolicy.getRotationLockOrientation(activity) |
| == Configuration.ORIENTATION_PORTRAIT) { |
| rotateLockedResourceId = |
| R.string.display_auto_rotate_stay_in_portrait; |
| } else { |
| rotateLockedResourceId = |
| R.string.display_auto_rotate_stay_in_landscape; |
| } |
| } |
| rotatePreference.addItem(activity.getString(rotateLockedResourceId), true); |
| rotatePreference.setSelectedItem(RotationPolicy.isRotationLocked(activity) ? |
| 1 : 0); |
| rotatePreference.setCallback(new Callback() { |
| @Override |
| public boolean onItemSelected(int pos, Object value) { |
| RotationPolicy.setRotationLock(activity, (Boolean) value); |
| return true; |
| } |
| }); |
| } else { |
| removePreference(KEY_AUTO_ROTATE); |
| } |
| } |
| |
| private static boolean allowAllRotations(Context context) { |
| return Resources.getSystem().getBoolean( |
| com.android.internal.R.bool.config_allowAllRotations); |
| } |
| |
| private static boolean isLiftToWakeAvailable(Context context) { |
| SensorManager sensors = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE); |
| return sensors != null && sensors.getDefaultSensor(Sensor.TYPE_WAKE_GESTURE) != null; |
| } |
| |
| private static boolean isDozeAvailable(Context context) { |
| String name = Build.IS_DEBUGGABLE ? SystemProperties.get("debug.doze.component") : null; |
| if (TextUtils.isEmpty(name)) { |
| name = context.getResources().getString( |
| com.android.internal.R.string.config_dozeComponent); |
| } |
| return !TextUtils.isEmpty(name); |
| } |
| |
| private static boolean isAutomaticBrightnessAvailable(Resources res) { |
| return res.getBoolean(com.android.internal.R.bool.config_automatic_brightness_available); |
| } |
| |
| private void updateTimeoutPreferenceDescription(long currentTimeout) { |
| ListPreference preference = mScreenTimeoutPreference; |
| String summary; |
| if (currentTimeout < 0) { |
| // Unsupported value |
| summary = ""; |
| } else { |
| final CharSequence[] entries = preference.getEntries(); |
| final CharSequence[] values = preference.getEntryValues(); |
| if (entries == null || entries.length == 0) { |
| summary = ""; |
| } else { |
| int best = 0; |
| for (int i = 0; i < values.length; i++) { |
| long timeout = Long.parseLong(values[i].toString()); |
| if (currentTimeout >= timeout) { |
| best = i; |
| } |
| } |
| summary = preference.getContext().getString(R.string.screen_timeout_summary, |
| entries[best]); |
| } |
| } |
| preference.setSummary(summary); |
| } |
| |
| private void disableUnusableTimeouts(ListPreference screenTimeoutPreference) { |
| final DevicePolicyManager dpm = |
| (DevicePolicyManager) getActivity().getSystemService( |
| Context.DEVICE_POLICY_SERVICE); |
| final long maxTimeout = dpm != null ? dpm.getMaximumTimeToLock(null) : 0; |
| if (maxTimeout == 0) { |
| return; // policy not enforced |
| } |
| final CharSequence[] entries = screenTimeoutPreference.getEntries(); |
| final CharSequence[] values = screenTimeoutPreference.getEntryValues(); |
| ArrayList<CharSequence> revisedEntries = new ArrayList<CharSequence>(); |
| ArrayList<CharSequence> revisedValues = new ArrayList<CharSequence>(); |
| for (int i = 0; i < values.length; i++) { |
| long timeout = Long.parseLong(values[i].toString()); |
| if (timeout <= maxTimeout) { |
| revisedEntries.add(entries[i]); |
| revisedValues.add(values[i]); |
| } |
| } |
| if (revisedEntries.size() != entries.length || revisedValues.size() != values.length) { |
| final int userPreference = Integer.parseInt(screenTimeoutPreference.getValue()); |
| screenTimeoutPreference.setEntries( |
| revisedEntries.toArray(new CharSequence[revisedEntries.size()])); |
| screenTimeoutPreference.setEntryValues( |
| revisedValues.toArray(new CharSequence[revisedValues.size()])); |
| if (userPreference <= maxTimeout) { |
| screenTimeoutPreference.setValue(String.valueOf(userPreference)); |
| } else if (revisedValues.size() > 0 |
| && Long.parseLong(revisedValues.get(revisedValues.size() - 1).toString()) |
| == maxTimeout) { |
| // If the last one happens to be the same as the max timeout, select that |
| screenTimeoutPreference.setValue(String.valueOf(maxTimeout)); |
| } else { |
| // There will be no highlighted selection since nothing in the list matches |
| // maxTimeout. The user can still select anything less than maxTimeout. |
| // TODO: maybe append maxTimeout to the list and mark selected. |
| } |
| } |
| screenTimeoutPreference.setEnabled(revisedEntries.size() > 0); |
| } |
| |
| int floatToIndex(float val) { |
| String[] indices = getResources().getStringArray(R.array.entryvalues_font_size); |
| float lastVal = Float.parseFloat(indices[0]); |
| for (int i=1; i<indices.length; i++) { |
| float thisVal = Float.parseFloat(indices[i]); |
| if (val < (lastVal + (thisVal-lastVal)*.5f)) { |
| return i-1; |
| } |
| lastVal = thisVal; |
| } |
| return indices.length-1; |
| } |
| |
| public void readFontSizePreference(ListPreference pref) { |
| try { |
| mCurConfig.updateFrom(ActivityManagerNative.getDefault().getConfiguration()); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Unable to retrieve font size"); |
| } |
| |
| // mark the appropriate item in the preferences list |
| int index = floatToIndex(mCurConfig.fontScale); |
| pref.setValueIndex(index); |
| |
| // report the current size in the summary text |
| final Resources res = getResources(); |
| String[] fontSizeNames = res.getStringArray(R.array.entries_font_size); |
| pref.setSummary(String.format(res.getString(R.string.summary_font_size), |
| fontSizeNames[index])); |
| } |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| updateState(); |
| } |
| |
| @Override |
| public Dialog onCreateDialog(int dialogId) { |
| if (dialogId == DLG_GLOBAL_CHANGE_WARNING) { |
| return Utils.buildGlobalChangeWarningDialog(getActivity(), |
| R.string.global_font_change_title, |
| new Runnable() { |
| public void run() { |
| mFontSizePref.click(); |
| } |
| }); |
| } |
| return null; |
| } |
| |
| private void updateState() { |
| readFontSizePreference(mFontSizePref); |
| updateScreenSaverSummary(); |
| |
| // Update auto brightness if it is available. |
| if (mAutoBrightnessPreference != null) { |
| int brightnessMode = Settings.System.getInt(getContentResolver(), |
| SCREEN_BRIGHTNESS_MODE, SCREEN_BRIGHTNESS_MODE_MANUAL); |
| mAutoBrightnessPreference.setChecked(brightnessMode != SCREEN_BRIGHTNESS_MODE_MANUAL); |
| } |
| |
| // Update lift-to-wake if it is available. |
| if (mLiftToWakePreference != null) { |
| int value = Settings.Secure.getInt(getContentResolver(), WAKE_GESTURE_ENABLED, 0); |
| mLiftToWakePreference.setChecked(value != 0); |
| } |
| |
| // Update doze if it is available. |
| if (mDozePreference != null) { |
| int value = Settings.Secure.getInt(getContentResolver(), DOZE_ENABLED, 1); |
| mDozePreference.setChecked(value != 0); |
| } |
| } |
| |
| private void updateScreenSaverSummary() { |
| if (mScreenSaverPreference != null) { |
| mScreenSaverPreference.setSummary( |
| DreamSettings.getSummaryTextWithDreamName(getActivity())); |
| } |
| } |
| |
| public void writeFontSizePreference(Object objValue) { |
| try { |
| mCurConfig.fontScale = Float.parseFloat(objValue.toString()); |
| ActivityManagerNative.getDefault().updatePersistentConfiguration(mCurConfig); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Unable to save font size"); |
| } |
| } |
| |
| @Override |
| public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen, Preference preference) { |
| return super.onPreferenceTreeClick(preferenceScreen, preference); |
| } |
| |
| @Override |
| public boolean onPreferenceChange(Preference preference, Object objValue) { |
| final String key = preference.getKey(); |
| if (KEY_SCREEN_TIMEOUT.equals(key)) { |
| try { |
| int value = Integer.parseInt((String) objValue); |
| Settings.System.putInt(getContentResolver(), SCREEN_OFF_TIMEOUT, value); |
| updateTimeoutPreferenceDescription(value); |
| } catch (NumberFormatException e) { |
| Log.e(TAG, "could not persist screen timeout setting", e); |
| } |
| } |
| if (KEY_FONT_SIZE.equals(key)) { |
| writeFontSizePreference(objValue); |
| } |
| if (preference == mAutoBrightnessPreference) { |
| boolean auto = (Boolean) objValue; |
| Settings.System.putInt(getContentResolver(), SCREEN_BRIGHTNESS_MODE, |
| auto ? SCREEN_BRIGHTNESS_MODE_AUTOMATIC : SCREEN_BRIGHTNESS_MODE_MANUAL); |
| } |
| if (preference == mLiftToWakePreference) { |
| boolean value = (Boolean) objValue; |
| Settings.Secure.putInt(getContentResolver(), WAKE_GESTURE_ENABLED, value ? 1 : 0); |
| } |
| if (preference == mDozePreference) { |
| boolean value = (Boolean) objValue; |
| Settings.Secure.putInt(getContentResolver(), DOZE_ENABLED, value ? 1 : 0); |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean onPreferenceClick(Preference preference) { |
| if (preference == mFontSizePref) { |
| if (Utils.hasMultipleUsers(getActivity())) { |
| showDialog(DLG_GLOBAL_CHANGE_WARNING); |
| return true; |
| } else { |
| mFontSizePref.click(); |
| } |
| } |
| return false; |
| } |
| |
| public static final Indexable.SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER = |
| new BaseSearchIndexProvider() { |
| @Override |
| public List<SearchIndexableResource> getXmlResourcesToIndex(Context context, |
| boolean enabled) { |
| ArrayList<SearchIndexableResource> result = |
| new ArrayList<SearchIndexableResource>(); |
| |
| SearchIndexableResource sir = new SearchIndexableResource(context); |
| sir.xmlResId = R.xml.display_settings; |
| result.add(sir); |
| |
| return result; |
| } |
| |
| @Override |
| public List<String> getNonIndexableKeys(Context context) { |
| ArrayList<String> result = new ArrayList<String>(); |
| if (!context.getResources().getBoolean( |
| com.android.internal.R.bool.config_dreamsSupported)) { |
| result.add(KEY_SCREEN_SAVER); |
| } |
| if (!isAutomaticBrightnessAvailable(context.getResources())) { |
| result.add(KEY_AUTO_BRIGHTNESS); |
| } |
| if (!isLiftToWakeAvailable(context)) { |
| result.add(KEY_LIFT_TO_WAKE); |
| } |
| if (!isDozeAvailable(context)) { |
| result.add(KEY_DOZE); |
| } |
| if (!RotationPolicy.isRotationLockToggleVisible(context)) { |
| result.add(KEY_AUTO_ROTATE); |
| } |
| return result; |
| } |
| }; |
| } |
