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Commit 4bbe003c authored by Adnan's avatar Adnan Committed by Luca Stefani
Browse files

Settings: Add option to scramble pin layout when unlocking (1/2). 

Change-Id: I3e2c200a0a31d3c765831bc30280029a50c88051
parent ec0098cc

res/values/cm_strings.xml

+4 −0
Original line number Diff line number Diff line
@@ -45,4 +45,8 @@ 


    <!-- Lock screen cover art -->

    <string name="lockscreen_media_art_title">Display media cover art</string>



    <!-- PIN scramble -->

    <string name="unlock_scramble_pin_layout_title">Scramble layout</string>

    <string name="unlock_scramble_pin_layout_summary">Scramble PIN layout when unlocking device</string>

</resources>

res/xml/screen_lock_settings.xml

+6 −0
Original line number Diff line number Diff line
@@ -40,4 +40,10 @@ 
        android:key="power_button_instantly_locks"

        android:title="@string/lockpattern_settings_enable_power_button_instantly_locks" />



    <!-- Lineage additions, available in pin/pattern/password/slide -->

    <SwitchPreference

        android:key="lockscreen_scramble_pin_layout"

        android:title="@string/unlock_scramble_pin_layout_title"

        android:summary="@string/unlock_scramble_pin_layout_summary" />



</PreferenceScreen>

src/com/android/settings/security/screenlock/PinScramblePreferenceController.java

0 → 100644
+78 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2018 The LineageOS 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.screenlock;



import android.app.admin.DevicePolicyManager;

import android.content.Context;

import androidx.preference.Preference;

import androidx.preference.TwoStatePreference;



import com.android.internal.widget.LockPatternUtils;

import com.android.settings.core.PreferenceControllerMixin;

import com.android.settingslib.core.AbstractPreferenceController;



import lineageos.providers.LineageSettings;



public class PinScramblePreferenceController extends AbstractPreferenceController

        implements PreferenceControllerMixin, Preference.OnPreferenceChangeListener {



    static final String KEY_LOCKSCREEN_SCRAMBLE_PIN_LAYOUT = "lockscreen_scramble_pin_layout";



    private final int mUserId;

    private final LockPatternUtils mLockPatternUtils;



    public PinScramblePreferenceController(Context context, int userId,

            LockPatternUtils lockPatternUtils) {

        super(context);

        mUserId = userId;

        mLockPatternUtils = lockPatternUtils;

    }



    @Override

    public boolean isAvailable() {

        return isPinLock();

    }



    @Override

    public String getPreferenceKey() {

        return KEY_LOCKSCREEN_SCRAMBLE_PIN_LAYOUT;

    }



    @Override

    public void updateState(Preference preference) {

        ((TwoStatePreference) preference).setChecked(LineageSettings.System.getInt(

                mContext.getContentResolver(),

                LineageSettings.System.LOCKSCREEN_PIN_SCRAMBLE_LAYOUT,

                0) == 1);

    }



    private boolean isPinLock() {

        int quality = mLockPatternUtils.getKeyguardStoredPasswordQuality(mUserId);

        boolean hasPin = quality == DevicePolicyManager.PASSWORD_QUALITY_NUMERIC ||

                quality == DevicePolicyManager.PASSWORD_QUALITY_NUMERIC_COMPLEX;

        return mLockPatternUtils.isSecure(mUserId) && hasPin;

    }



    @Override

    public boolean onPreferenceChange(Preference preference, Object newValue) {

        LineageSettings.System.putInt(

                mContext.getContentResolver(),

                LineageSettings.System.LOCKSCREEN_PIN_SCRAMBLE_LAYOUT,

                (Boolean) newValue ? 1 : 0);

        return true;

    }

}

src/com/android/settings/security/screenlock/ScreenLockSettings.java

+2 −0
Original line number Diff line number Diff line
@@ -81,6 +81,8 @@ public class ScreenLockSettings extends DashboardFragment 
                context, MY_USER_ID, lockPatternUtils));

        controllers.add(new LockAfterTimeoutPreferenceController(

                context, MY_USER_ID, lockPatternUtils));

        controllers.add(new PinScramblePreferenceController(

                context, MY_USER_ID, lockPatternUtils));

        controllers.add(new OwnerInfoPreferenceController(context, parent, lifecycle));

        return controllers;

    }