src/com/android/settings/security/ScreenPinningSettings.java - LeafOS-Project/android_packages_apps_Settings - Gitiles

 /*
  * Copyright (C) 2014 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.security;

 import static android.app.Activity.RESULT_OK;

 import android.app.admin.DevicePolicyManager;
 import android.app.settings.SettingsEnums;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.res.Resources;
 import android.icu.text.MessageFormat;
 import android.os.Bundle;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.provider.Settings;
 import android.widget.CompoundButton;
 import android.widget.CompoundButton.OnCheckedChangeListener;

 import androidx.annotation.NonNull;
 import androidx.appcompat.app.AlertDialog;
 import androidx.preference.Preference;
 import androidx.preference.Preference.OnPreferenceChangeListener;
 import androidx.preference.PreferenceScreen;
 import androidx.preference.TwoStatePreference;

 import com.android.internal.widget.LockPatternUtils;
 import com.android.settings.R;
 import com.android.settings.SettingsActivity;
 import com.android.settings.SettingsPreferenceFragment;
 import com.android.settings.password.ChooseLockGeneric;
 import com.android.settings.password.ChooseLockSettingsHelper;
 import com.android.settings.search.BaseSearchIndexProvider;
 import com.android.settings.widget.SettingsMainSwitchBar;
 import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.search.SearchIndexableRaw;
 import com.android.settingslib.widget.FooterPreference;

 import java.util.List;

 /**
  * Screen pinning settings.
  */
 @SearchIndexable
 public class ScreenPinningSettings extends SettingsPreferenceFragment
         implements OnCheckedChangeListener, DialogInterface.OnClickListener {

     private static final String KEY_USE_SCREEN_LOCK = "use_screen_lock";
     private static final String KEY_FOOTER = "screen_pinning_settings_screen_footer";
     private static final int CHANGE_LOCK_METHOD_REQUEST = 43;
     private static final int CONFIRM_REQUEST = 1000;

     private SettingsMainSwitchBar mSwitchBar;
     private TwoStatePreference mUseScreenLock;
     private FooterPreference mFooterPreference;
     private LockPatternUtils mLockPatternUtils;
     private UserManager mUserManager;

     @Override
     public int getMetricsCategory() {
         return SettingsEnums.SCREEN_PINNING;
     }

     @Override
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);

         final SettingsActivity activity = (SettingsActivity) getActivity();
         activity.setTitle(R.string.screen_pinning_title);
         mLockPatternUtils = new LockPatternUtils(activity);
         mUserManager = activity.getSystemService(UserManager.class);

         addPreferencesFromResource(R.xml.screen_pinning_settings);
         final PreferenceScreen root = getPreferenceScreen();
         mUseScreenLock = root.findPreference(KEY_USE_SCREEN_LOCK);
         mFooterPreference = root.findPreference(KEY_FOOTER);

         mSwitchBar = activity.getSwitchBar();
         mSwitchBar.setTitle(getContext().getString(R.string.app_pinning_main_switch_title));
         mSwitchBar.show();
         mSwitchBar.setChecked(isLockToAppEnabled(getActivity()));
         mSwitchBar.addOnSwitchChangeListener(this);

         updateDisplay();
     }

     @Override
     public int getHelpResource() {
         return R.string.help_url_screen_pinning;
     }

     @Override
     public void onDestroyView() {
         super.onDestroyView();

         mSwitchBar.removeOnSwitchChangeListener(this);
         mSwitchBar.hide();
     }

     private static boolean isLockToAppEnabled(Context context) {
         return Settings.System.getInt(context.getContentResolver(),
                 Settings.System.LOCK_TO_APP_ENABLED, 0) != 0;
     }

     private void setLockToAppEnabled(boolean isEnabled) {
         Settings.System.putInt(getContentResolver(), Settings.System.LOCK_TO_APP_ENABLED,
                 isEnabled ? 1 : 0);
         if (isEnabled) {
             // Set the value to match what we have defaulted to in the UI.
             setScreenLockUsedSetting(isScreenLockUsed());
         }
     }

     private boolean isScreenLockUsed() {
         // This functionality should be kept consistent with
         // com.android.server.wm.LockTaskController (see b/127605586)
         int defaultValueIfSettingNull = mLockPatternUtils.isSecure(UserHandle.myUserId()) ? 1 : 0;
         return Settings.Secure.getInt(
                 getContentResolver(),
                 Settings.Secure.LOCK_TO_APP_EXIT_LOCKED,
                 defaultValueIfSettingNull) != 0;
     }

     private boolean setScreenLockUsed(boolean isEnabled) {
         LockPatternUtils lockPatternUtils = new LockPatternUtils(getActivity());
         final int passwordQuality = lockPatternUtils
                 .getKeyguardStoredPasswordQuality(UserHandle.myUserId());
         if (isEnabled) {
             if (passwordQuality == DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) {
                 Intent chooseLockIntent = new Intent(DevicePolicyManager.ACTION_SET_NEW_PASSWORD);
                 chooseLockIntent.putExtra(
                         ChooseLockGeneric.ChooseLockGenericFragment.HIDE_INSECURE_OPTIONS,
                         true);
                 startActivityForResult(chooseLockIntent, CHANGE_LOCK_METHOD_REQUEST);
                 return false;
             }
         }  else {
             if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) {
                 final ChooseLockSettingsHelper.Builder builder =
                         new ChooseLockSettingsHelper.Builder(getActivity(), this);
                 return builder.setRequestCode(CONFIRM_REQUEST).show();
             }
         }
         setScreenLockUsedSetting(isEnabled);
         return true;
     }

     private void setScreenLockUsedSetting(boolean isEnabled) {
         Settings.Secure.putInt(getContentResolver(), Settings.Secure.LOCK_TO_APP_EXIT_LOCKED,
                 isEnabled ? 1 : 0);
     }

     @Override
     public void onActivityResult(int requestCode, int resultCode, Intent data) {
         super.onActivityResult(requestCode, resultCode, data);
         if (requestCode == CHANGE_LOCK_METHOD_REQUEST) {
             LockPatternUtils lockPatternUtils = new LockPatternUtils(getActivity());
             boolean validPassQuality = lockPatternUtils.getKeyguardStoredPasswordQuality(
                     UserHandle.myUserId())
                     != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
             setScreenLockUsed(validPassQuality);
             // Make sure the screen updates.
             mUseScreenLock.setChecked(validPassQuality);
         } else if (requestCode == CONFIRM_REQUEST && resultCode == RESULT_OK) {
             setScreenLockUsedSetting(false);
         }
     }

     private static int getCurrentSecurityTitle(LockPatternUtils lockPatternUtils) {
         int quality = lockPatternUtils.getKeyguardStoredPasswordQuality(UserHandle.myUserId());
         switch (quality) {
             case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC:
             case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX:
                 return R.string.screen_pinning_unlock_pin;
             case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC:
             case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC:
             case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX:
             case DevicePolicyManager.PASSWORD_QUALITY_MANAGED:
                 return R.string.screen_pinning_unlock_password;
             case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING:
                 if (lockPatternUtils.isLockPatternEnabled(UserHandle.myUserId())) {
                     return R.string.screen_pinning_unlock_pattern;
                 }
         }
         return R.string.screen_pinning_unlock_none;
     }

     /**
      * Listens to the state change of the overall lock-to-app switch.
      */
     @Override
     public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
         if (isChecked) {
             new AlertDialog.Builder(getContext())
                     .setMessage(R.string.screen_pinning_dialog_message)
                     .setPositiveButton(R.string.dlg_ok, this)
                     .setNegativeButton(R.string.dlg_cancel, this)
                     .setCancelable(false)
                     .show();
         } else {
             setLockToAppEnabled(false);
             updateDisplay();
         }
     }

     @Override
     public void onClick(DialogInterface dialogInterface, int which) {
         if (which == DialogInterface.BUTTON_POSITIVE) {
             setLockToAppEnabled(true);
         } else {
             mSwitchBar.setChecked(false);
         }
         updateDisplay();
     }

     private void updateDisplay() {
         if (isLockToAppEnabled(getActivity())) {
             mUseScreenLock.setEnabled(true);
             mUseScreenLock.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
                 @Override
                 public boolean onPreferenceChange(Preference preference, Object newValue) {
                     return setScreenLockUsed((boolean) newValue);
                 }
             });
             mUseScreenLock.setChecked(isScreenLockUsed());
             mUseScreenLock.setTitle(getCurrentSecurityTitle(mLockPatternUtils));
         } else {
             mFooterPreference.setSummary(getAppPinningContent());
             mUseScreenLock.setEnabled(false);
         }
     }

     private boolean isGuestModeSupported() {
         return UserManager.supportsMultipleUsers()
                 && !mUserManager.hasUserRestriction(UserManager.DISALLOW_USER_SWITCH);
     }

     private CharSequence getAppPinningContent() {
         final int stringResource = isGuestModeSupported()
                 ? R.string.screen_pinning_guest_user_description
                 : R.string.screen_pinning_description;
         return MessageFormat.format(getActivity().getString(stringResource), 1, 2, 3);
     }

     /**
      * For search.
      *
      * This page only provides an index for the toggle preference of using screen lock for
      * unpinning. The preference name will change with various lock configurations. Indexing data
      * from XML isn't suitable since it uses a static title by default. So, we skip XML indexing
      * by omitting the XML argument in the constructor and use a dynamic index method instead.
      */
     public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
             new BaseSearchIndexProvider() {

                 @NonNull
                 @Override
                 public List<SearchIndexableRaw> getDynamicRawDataToIndex(@NonNull Context context,
                         boolean enabled) {
                     List<SearchIndexableRaw> dynamicRaws =
                             super.getDynamicRawDataToIndex(context, enabled);
                     final SearchIndexableRaw raw = new SearchIndexableRaw(context);
                     final Resources res = context.getResources();
                     final LockPatternUtils lockPatternUtils = new LockPatternUtils(context);
                     raw.key = KEY_USE_SCREEN_LOCK;
                     raw.title = res.getString(getCurrentSecurityTitle(lockPatternUtils));
                     raw.screenTitle = res.getString(R.string.screen_pinning_title);
                     dynamicRaws.add(raw);
                     return dynamicRaws;
                 }
             };
 }
	/*
	* Copyright (C) 2014 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.security;

	import static android.app.Activity.RESULT_OK;

	import android.app.admin.DevicePolicyManager;
	import android.app.settings.SettingsEnums;
	import android.content.Context;
	import android.content.DialogInterface;
	import android.content.Intent;
	import android.content.res.Resources;
	import android.icu.text.MessageFormat;
	import android.os.Bundle;
	import android.os.UserHandle;
	import android.os.UserManager;
	import android.provider.Settings;
	import android.widget.CompoundButton;
	import android.widget.CompoundButton.OnCheckedChangeListener;

	import androidx.annotation.NonNull;
	import androidx.appcompat.app.AlertDialog;
	import androidx.preference.Preference;
	import androidx.preference.Preference.OnPreferenceChangeListener;
	import androidx.preference.PreferenceScreen;
	import androidx.preference.TwoStatePreference;

	import com.android.internal.widget.LockPatternUtils;
	import com.android.settings.R;
	import com.android.settings.SettingsActivity;
	import com.android.settings.SettingsPreferenceFragment;
	import com.android.settings.password.ChooseLockGeneric;
	import com.android.settings.password.ChooseLockSettingsHelper;
	import com.android.settings.search.BaseSearchIndexProvider;
	import com.android.settings.widget.SettingsMainSwitchBar;
	import com.android.settingslib.search.SearchIndexable;
	import com.android.settingslib.search.SearchIndexableRaw;
	import com.android.settingslib.widget.FooterPreference;

	import java.util.List;

	/**
	* Screen pinning settings.
	*/
	@SearchIndexable
	public class ScreenPinningSettings extends SettingsPreferenceFragment
	implements OnCheckedChangeListener, DialogInterface.OnClickListener {

	private static final String KEY_USE_SCREEN_LOCK = "use_screen_lock";
	private static final String KEY_FOOTER = "screen_pinning_settings_screen_footer";
	private static final int CHANGE_LOCK_METHOD_REQUEST = 43;
	private static final int CONFIRM_REQUEST = 1000;

	private SettingsMainSwitchBar mSwitchBar;
	private TwoStatePreference mUseScreenLock;
	private FooterPreference mFooterPreference;
	private LockPatternUtils mLockPatternUtils;
	private UserManager mUserManager;

	@Override
	public int getMetricsCategory() {
	return SettingsEnums.SCREEN_PINNING;
	}

	@Override
	public void onActivityCreated(Bundle savedInstanceState) {
	super.onActivityCreated(savedInstanceState);

	final SettingsActivity activity = (SettingsActivity) getActivity();
	activity.setTitle(R.string.screen_pinning_title);
	mLockPatternUtils = new LockPatternUtils(activity);
	mUserManager = activity.getSystemService(UserManager.class);

	addPreferencesFromResource(R.xml.screen_pinning_settings);
	final PreferenceScreen root = getPreferenceScreen();
	mUseScreenLock = root.findPreference(KEY_USE_SCREEN_LOCK);
	mFooterPreference = root.findPreference(KEY_FOOTER);

	mSwitchBar = activity.getSwitchBar();
	mSwitchBar.setTitle(getContext().getString(R.string.app_pinning_main_switch_title));
	mSwitchBar.show();
	mSwitchBar.setChecked(isLockToAppEnabled(getActivity()));
	mSwitchBar.addOnSwitchChangeListener(this);

	updateDisplay();
	}

	@Override
	public int getHelpResource() {
	return R.string.help_url_screen_pinning;
	}

	@Override
	public void onDestroyView() {
	super.onDestroyView();

	mSwitchBar.removeOnSwitchChangeListener(this);
	mSwitchBar.hide();
	}

	private static boolean isLockToAppEnabled(Context context) {
	return Settings.System.getInt(context.getContentResolver(),
	Settings.System.LOCK_TO_APP_ENABLED, 0) != 0;
	}

	private void setLockToAppEnabled(boolean isEnabled) {
	Settings.System.putInt(getContentResolver(), Settings.System.LOCK_TO_APP_ENABLED,
	isEnabled ? 1 : 0);
	if (isEnabled) {
	// Set the value to match what we have defaulted to in the UI.
	setScreenLockUsedSetting(isScreenLockUsed());
	}
	}

	private boolean isScreenLockUsed() {
	// This functionality should be kept consistent with
	// com.android.server.wm.LockTaskController (see b/127605586)
	int defaultValueIfSettingNull = mLockPatternUtils.isSecure(UserHandle.myUserId()) ? 1 : 0;
	return Settings.Secure.getInt(
	getContentResolver(),
	Settings.Secure.LOCK_TO_APP_EXIT_LOCKED,
	defaultValueIfSettingNull) != 0;
	}

	private boolean setScreenLockUsed(boolean isEnabled) {
	LockPatternUtils lockPatternUtils = new LockPatternUtils(getActivity());
	final int passwordQuality = lockPatternUtils
	.getKeyguardStoredPasswordQuality(UserHandle.myUserId());
	if (isEnabled) {
	if (passwordQuality == DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) {
	Intent chooseLockIntent = new Intent(DevicePolicyManager.ACTION_SET_NEW_PASSWORD);
	chooseLockIntent.putExtra(
	ChooseLockGeneric.ChooseLockGenericFragment.HIDE_INSECURE_OPTIONS,
	true);
	startActivityForResult(chooseLockIntent, CHANGE_LOCK_METHOD_REQUEST);
	return false;
	}
	} else {
	if (passwordQuality != DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED) {
	final ChooseLockSettingsHelper.Builder builder =
	new ChooseLockSettingsHelper.Builder(getActivity(), this);
	return builder.setRequestCode(CONFIRM_REQUEST).show();
	}
	}
	setScreenLockUsedSetting(isEnabled);
	return true;
	}

	private void setScreenLockUsedSetting(boolean isEnabled) {
	Settings.Secure.putInt(getContentResolver(), Settings.Secure.LOCK_TO_APP_EXIT_LOCKED,
	isEnabled ? 1 : 0);
	}

	@Override
	public void onActivityResult(int requestCode, int resultCode, Intent data) {
	super.onActivityResult(requestCode, resultCode, data);
	if (requestCode == CHANGE_LOCK_METHOD_REQUEST) {
	LockPatternUtils lockPatternUtils = new LockPatternUtils(getActivity());
	boolean validPassQuality = lockPatternUtils.getKeyguardStoredPasswordQuality(
	UserHandle.myUserId())
	!= DevicePolicyManager.PASSWORD_QUALITY_UNSPECIFIED;
	setScreenLockUsed(validPassQuality);
	// Make sure the screen updates.
	mUseScreenLock.setChecked(validPassQuality);
	} else if (requestCode == CONFIRM_REQUEST && resultCode == RESULT_OK) {
	setScreenLockUsedSetting(false);
	}
	}

	private static int getCurrentSecurityTitle(LockPatternUtils lockPatternUtils) {
	int quality = lockPatternUtils.getKeyguardStoredPasswordQuality(UserHandle.myUserId());
	switch (quality) {
	case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC:
	case DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX:
	return R.string.screen_pinning_unlock_pin;
	case DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC:
	case DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC:
	case DevicePolicyManager.PASSWORD_QUALITY_COMPLEX:
	case DevicePolicyManager.PASSWORD_QUALITY_MANAGED:
	return R.string.screen_pinning_unlock_password;
	case DevicePolicyManager.PASSWORD_QUALITY_SOMETHING:
	if (lockPatternUtils.isLockPatternEnabled(UserHandle.myUserId())) {
	return R.string.screen_pinning_unlock_pattern;
	}
	}
	return R.string.screen_pinning_unlock_none;
	}

	/**
	* Listens to the state change of the overall lock-to-app switch.
	*/
	@Override
	public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
	if (isChecked) {
	new AlertDialog.Builder(getContext())
	.setMessage(R.string.screen_pinning_dialog_message)
	.setPositiveButton(R.string.dlg_ok, this)
	.setNegativeButton(R.string.dlg_cancel, this)
	.setCancelable(false)
	.show();
	} else {
	setLockToAppEnabled(false);
	updateDisplay();
	}
	}

	@Override
	public void onClick(DialogInterface dialogInterface, int which) {
	if (which == DialogInterface.BUTTON_POSITIVE) {
	setLockToAppEnabled(true);
	} else {
	mSwitchBar.setChecked(false);
	}
	updateDisplay();
	}

	private void updateDisplay() {
	if (isLockToAppEnabled(getActivity())) {
	mUseScreenLock.setEnabled(true);
	mUseScreenLock.setOnPreferenceChangeListener(new OnPreferenceChangeListener() {
	@Override
	public boolean onPreferenceChange(Preference preference, Object newValue) {
	return setScreenLockUsed((boolean) newValue);
	}
	});
	mUseScreenLock.setChecked(isScreenLockUsed());
	mUseScreenLock.setTitle(getCurrentSecurityTitle(mLockPatternUtils));
	} else {
	mFooterPreference.setSummary(getAppPinningContent());
	mUseScreenLock.setEnabled(false);
	}
	}

	private boolean isGuestModeSupported() {
	return UserManager.supportsMultipleUsers()
	&& !mUserManager.hasUserRestriction(UserManager.DISALLOW_USER_SWITCH);
	}

	private CharSequence getAppPinningContent() {
	final int stringResource = isGuestModeSupported()
	? R.string.screen_pinning_guest_user_description
	: R.string.screen_pinning_description;
	return MessageFormat.format(getActivity().getString(stringResource), 1, 2, 3);
	}

	/**
	* For search.
	*
	* This page only provides an index for the toggle preference of using screen lock for
	* unpinning. The preference name will change with various lock configurations. Indexing data
	* from XML isn't suitable since it uses a static title by default. So, we skip XML indexing
	* by omitting the XML argument in the constructor and use a dynamic index method instead.
	*/
	public static final BaseSearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
	new BaseSearchIndexProvider() {

	@NonNull
	@Override
	public List<SearchIndexableRaw> getDynamicRawDataToIndex(@NonNull Context context,
	boolean enabled) {
	List<SearchIndexableRaw> dynamicRaws =
	super.getDynamicRawDataToIndex(context, enabled);
	final SearchIndexableRaw raw = new SearchIndexableRaw(context);
	final Resources res = context.getResources();
	final LockPatternUtils lockPatternUtils = new LockPatternUtils(context);
	raw.key = KEY_USE_SCREEN_LOCK;
	raw.title = res.getString(getCurrentSecurityTitle(lockPatternUtils));
	raw.screenTitle = res.getString(R.string.screen_pinning_title);
	dynamicRaws.add(raw);
	return dynamicRaws;
	}
	};
	}