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/*
* Copyright (C) 2016 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.notification;
import static android.app.admin.DevicePolicyManager.KEYGUARD_DISABLE_SECURE_NOTIFICATIONS;
import static android.app.admin.DevicePolicyManager.KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS;
import static android.app.admin.DevicePolicyResources.Strings.Settings.LOCK_SCREEN_HIDE_WORK_NOTIFICATION_CONTENT;
import static android.app.admin.DevicePolicyResources.Strings.Settings.LOCK_SCREEN_SHOW_WORK_NOTIFICATION_CONTENT;
import android.app.admin.DevicePolicyManager;
import android.content.ContentResolver;
import android.content.Context;
import android.database.ContentObserver;
import android.net.Uri;
import android.os.Handler;
import android.os.UserHandle;
import android.os.UserManager;
import android.provider.Settings;
import android.text.TextUtils;
import android.util.Log;
import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;
import com.android.internal.widget.LockPatternUtils;
import com.android.settings.R;
import com.android.settings.RestrictedListPreference;
import com.android.settings.Utils;
import com.android.settings.core.PreferenceControllerMixin;
import com.android.settings.overlay.FeatureFactory;
import com.android.settingslib.RestrictedLockUtils;
import com.android.settingslib.RestrictedLockUtilsInternal;
import com.android.settingslib.core.AbstractPreferenceController;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnPause;
import com.android.settingslib.core.lifecycle.events.OnResume;
import java.util.ArrayList;
public class LockScreenNotificationPreferenceController extends AbstractPreferenceController
implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener,
LifecycleObserver, OnResume, OnPause {
private static final String TAG = "LockScreenNotifPref";
private final String mSettingKey;
private final String mWorkSettingCategoryKey;
private final String mWorkSettingKey;
private RestrictedListPreference mLockscreen;
private RestrictedListPreference mLockscreenProfile;
private final int mProfileUserId;
private final boolean mSecure;
private final boolean mSecureProfile;
private SettingObserver mSettingObserver;
private int mLockscreenSelectedValue;
private int mLockscreenSelectedValueProfile;
public LockScreenNotificationPreferenceController(Context context) {
this(context, null, null, null);
}
public LockScreenNotificationPreferenceController(Context context,
String settingKey, String workSettingCategoryKey, String workSettingKey) {
super(context);
mSettingKey = settingKey;
mWorkSettingCategoryKey = workSettingCategoryKey;
mWorkSettingKey = workSettingKey;
mProfileUserId = Utils.getManagedProfileId(UserManager.get(context), UserHandle.myUserId());
final LockPatternUtils utils = FeatureFactory.getFeatureFactory()
.getSecurityFeatureProvider()
.getLockPatternUtils(context);
mSecure = utils.isSecure(UserHandle.myUserId());
mSecureProfile = (mProfileUserId != UserHandle.USER_NULL) && utils.isSecure(mProfileUserId);
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
mLockscreen = screen.findPreference(mSettingKey);
if (mLockscreen == null) {
Log.i(TAG, "Preference not found: " + mSettingKey);
return;
}
if (mProfileUserId != UserHandle.USER_NULL) {
mLockscreenProfile = screen.findPreference(mWorkSettingKey);
mLockscreenProfile.setRequiresActiveUnlockedProfile(true);
mLockscreenProfile.setProfileUserId(mProfileUserId);
} else {
setVisible(screen, mWorkSettingKey, false /* visible */);
setVisible(screen, mWorkSettingCategoryKey, false /* visible */);
}
mSettingObserver = new SettingObserver();
initLockScreenNotificationPrefDisplay();
initLockscreenNotificationPrefForProfile();
}
private void initLockScreenNotificationPrefDisplay() {
ArrayList<CharSequence> entries = new ArrayList<>();
ArrayList<CharSequence> values = new ArrayList<>();
String summaryShowEntry =
mContext.getString(R.string.lock_screen_notifications_summary_show);
String summaryShowEntryValue =
Integer.toString(R.string.lock_screen_notifications_summary_show);
entries.add(summaryShowEntry);
values.add(summaryShowEntryValue);
setRestrictedIfNotificationFeaturesDisabled(summaryShowEntry, summaryShowEntryValue,
KEYGUARD_DISABLE_SECURE_NOTIFICATIONS | KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS);
if (mSecure) {
String summaryHideEntry =
mContext.getString(R.string.lock_screen_notifications_summary_hide);
String summaryHideEntryValue =
Integer.toString(R.string.lock_screen_notifications_summary_hide);
entries.add(summaryHideEntry);
values.add(summaryHideEntryValue);
setRestrictedIfNotificationFeaturesDisabled(summaryHideEntry, summaryHideEntryValue,
KEYGUARD_DISABLE_SECURE_NOTIFICATIONS);
}
entries.add(mContext.getString(R.string.lock_screen_notifications_summary_disable));
values.add(Integer.toString(R.string.lock_screen_notifications_summary_disable));
mLockscreen.setEntries(entries.toArray(new CharSequence[entries.size()]));
mLockscreen.setEntryValues(values.toArray(new CharSequence[values.size()]));
updateLockscreenNotifications();
if (mLockscreen.getEntries().length > 1) {
mLockscreen.setOnPreferenceChangeListener(this);
} else {
// There is one or less option for the user, disable the drop down.
mLockscreen.setEnabled(false);
}
}
private void initLockscreenNotificationPrefForProfile() {
if (mLockscreenProfile == null) {
Log.i(TAG, "Preference not found: " + mWorkSettingKey);
return;
}
ArrayList<CharSequence> entries = new ArrayList<>();
ArrayList<CharSequence> values = new ArrayList<>();
DevicePolicyManager devicePolicyManager =
mContext.getSystemService(DevicePolicyManager.class);
String summaryShowEntry = devicePolicyManager
.getResources().getString(LOCK_SCREEN_SHOW_WORK_NOTIFICATION_CONTENT,
() -> mContext.getString(
R.string.lock_screen_notifications_summary_show_profile));
String summaryShowEntryValue = Integer.toString(
R.string.lock_screen_notifications_summary_show_profile);
entries.add(summaryShowEntry);
values.add(summaryShowEntryValue);
setRestrictedIfNotificationFeaturesDisabled(summaryShowEntry, summaryShowEntryValue,
KEYGUARD_DISABLE_SECURE_NOTIFICATIONS | KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS);
if (mSecureProfile) {
String summaryHideEntry = devicePolicyManager
.getResources().getString(LOCK_SCREEN_HIDE_WORK_NOTIFICATION_CONTENT,
() -> mContext.getString(
R.string.lock_screen_notifications_summary_hide_profile));
String summaryHideEntryValue = Integer.toString(
R.string.lock_screen_notifications_summary_hide_profile);
entries.add(summaryHideEntry);
values.add(summaryHideEntryValue);
setRestrictedIfNotificationFeaturesDisabled(summaryHideEntry, summaryHideEntryValue,
KEYGUARD_DISABLE_SECURE_NOTIFICATIONS);
}
mLockscreenProfile.setEntries(entries.toArray(new CharSequence[entries.size()]));
mLockscreenProfile.setEntryValues(values.toArray(new CharSequence[values.size()]));
updateLockscreenNotificationsForProfile();
if (mLockscreenProfile.getEntries().length > 1) {
mLockscreenProfile.setOnPreferenceChangeListener(this);
} else {
// There is one or less option for the user, disable the drop down.
mLockscreenProfile.setEnabled(false);
}
}
@Override
public String getPreferenceKey() {
return null;
}
@Override
public boolean isAvailable() {
return false;
}
@Override
public void onResume() {
if (mSettingObserver != null) {
mSettingObserver.register(mContext.getContentResolver(), true /* register */);
}
}
@Override
public void onPause() {
if (mSettingObserver != null) {
mSettingObserver.register(mContext.getContentResolver(), false /* register */);
}
}
@Override
public boolean onPreferenceChange(Preference preference, Object newValue) {
final String key = preference.getKey();
if (TextUtils.equals(mWorkSettingKey, key)) {
final int val = Integer.parseInt((String) newValue);
if (val == mLockscreenSelectedValueProfile) {
return false;
}
final boolean show = val == R.string.lock_screen_notifications_summary_show_profile;
Settings.Secure.putIntForUser(mContext.getContentResolver(),
Settings.Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS,
show ? 1 : 0, mProfileUserId);
mLockscreenSelectedValueProfile = val;
return true;
} else if (TextUtils.equals(mSettingKey, key)) {
final int val = Integer.parseInt((String) newValue);
if (val == mLockscreenSelectedValue) {
return false;
}
final boolean enabled = val != R.string.lock_screen_notifications_summary_disable;
final boolean show = val == R.string.lock_screen_notifications_summary_show;
Settings.Secure.putInt(mContext.getContentResolver(),
Settings.Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS, show ? 1 : 0);
Settings.Secure.putInt(mContext.getContentResolver(),
Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS, enabled ? 1 : 0);
mLockscreenSelectedValue = val;
return true;
}
return false;
}
private void setRestrictedIfNotificationFeaturesDisabled(CharSequence entry,
CharSequence entryValue, int keyguardNotificationFeatures) {
RestrictedLockUtils.EnforcedAdmin admin =
RestrictedLockUtilsInternal.checkIfKeyguardFeaturesDisabled(
mContext, keyguardNotificationFeatures, UserHandle.myUserId());
if (admin != null && mLockscreen != null) {
RestrictedListPreference.RestrictedItem item =
new RestrictedListPreference.RestrictedItem(entry, entryValue, admin);
mLockscreen.addRestrictedItem(item);
}
if (mProfileUserId != UserHandle.USER_NULL) {
RestrictedLockUtils.EnforcedAdmin profileAdmin =
RestrictedLockUtilsInternal.checkIfKeyguardFeaturesDisabled(
mContext, keyguardNotificationFeatures, mProfileUserId);
if (profileAdmin != null && mLockscreenProfile != null) {
RestrictedListPreference.RestrictedItem item =
new RestrictedListPreference.RestrictedItem(
entry, entryValue, profileAdmin);
mLockscreenProfile.addRestrictedItem(item);
}
}
}
public static int getSummaryResource(Context context) {
final boolean enabled = getLockscreenNotificationsEnabled(context);
final boolean secure = FeatureFactory.getFeatureFactory()
.getSecurityFeatureProvider()
.getLockPatternUtils(context)
.isSecure(UserHandle.myUserId());
final boolean allowPrivate = !secure
|| getAllowPrivateNotifications(context, UserHandle.myUserId());
return !enabled ? R.string.lock_screen_notifications_summary_disable :
allowPrivate ? R.string.lock_screen_notifications_summary_show :
R.string.lock_screen_notifications_summary_hide;
}
private void updateLockscreenNotifications() {
if (mLockscreen == null) {
return;
}
mLockscreenSelectedValue = getSummaryResource(mContext);
mLockscreen.setSummary("%s");
mLockscreen.setValue(Integer.toString(mLockscreenSelectedValue));
}
private boolean adminAllowsUnredactedNotifications(int userId) {
final int dpmFlags = mContext.getSystemService(DevicePolicyManager.class)
.getKeyguardDisabledFeatures(null/* admin */, userId);
return (dpmFlags & KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS) == 0;
}
private void updateLockscreenNotificationsForProfile() {
if (mProfileUserId == UserHandle.USER_NULL) {
return;
}
if (mLockscreenProfile == null) {
return;
}
final boolean allowPrivate = adminAllowsUnredactedNotifications(mProfileUserId) &&
(!mSecureProfile || getAllowPrivateNotifications(mContext, mProfileUserId));
mLockscreenProfile.setSummary("%s");
mLockscreenSelectedValueProfile = allowPrivate
? R.string.lock_screen_notifications_summary_show_profile
: R.string.lock_screen_notifications_summary_hide_profile;
mLockscreenProfile.setValue(Integer.toString(mLockscreenSelectedValueProfile));
}
private static boolean getLockscreenNotificationsEnabled(Context context) {
return Settings.Secure.getInt(context.getContentResolver(),
Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS, 0) != 0;
}
private static boolean getAllowPrivateNotifications(Context context, int userId) {
return Settings.Secure.getIntForUser(context.getContentResolver(),
Settings.Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS, 0, userId) != 0;
}
class SettingObserver extends ContentObserver {
private final Uri LOCK_SCREEN_PRIVATE_URI =
Settings.Secure.getUriFor(Settings.Secure.LOCK_SCREEN_ALLOW_PRIVATE_NOTIFICATIONS);
private final Uri LOCK_SCREEN_SHOW_URI =
Settings.Secure.getUriFor(Settings.Secure.LOCK_SCREEN_SHOW_NOTIFICATIONS);
public SettingObserver() {
super(new Handler());
}
public void register(ContentResolver cr, boolean register) {
if (register) {
cr.registerContentObserver(LOCK_SCREEN_PRIVATE_URI, false, this);
cr.registerContentObserver(LOCK_SCREEN_SHOW_URI, false, this);
} else {
cr.unregisterContentObserver(this);
}
}
@Override
public void onChange(boolean selfChange, Uri uri) {
super.onChange(selfChange, uri);
if (LOCK_SCREEN_PRIVATE_URI.equals(uri) || LOCK_SCREEN_SHOW_URI.equals(uri)) {
updateLockscreenNotifications();
if (mProfileUserId != UserHandle.USER_NULL) {
updateLockscreenNotificationsForProfile();
}
}
}
}
}