am 73ae2d3a: Merge "[FRP] Remove None and Swipe from screen lock options" into lmp-mr1-dev

* commit '73ae2d3adca786efed712e088b03c520fe7e9790':
  [FRP] Remove None and Swipe from screen lock options

src/com/android/settings/ChooseLockGeneric.java

@@ -287,15 +287,31 @@ public class ChooseLockGeneric extends SettingsActivity {
             return quality;
         }
 
+        /***
+         * Disables preferences that are less secure than required quality. The actual
+         * implementation is in disableUnusablePreferenceImpl.
+         *
+         * @param quality the requested quality.
+         * @param allowBiometric whether to allow biometic screen lock.
+         */
+        protected void disableUnusablePreferences(final int quality,
+                MutableBoolean allowBiometric) {
+            disableUnusablePreferencesImpl(quality, allowBiometric, false /* hideDisabled */);
+        }
+
         /***
          * Disables preferences that are less secure than required quality.
          *
          * @param quality the requested quality.
+         * @param allowBiometric whether to allow biometic screen lock.
+         * @param hideDisabled whether to hide disable screen lock options.
          */
-        private void disableUnusablePreferences(final int quality, MutableBoolean allowBiometric) {
+        protected void disableUnusablePreferencesImpl(final int quality,
+                MutableBoolean allowBiometric, boolean hideDisabled) {
             final PreferenceScreen entries = getPreferenceScreen();
-            final boolean onlyShowFallback = getActivity().getIntent()
+            final Intent intent = getActivity().getIntent();
-                    .getBooleanExtra(LockPatternUtils.LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK, false);
+            final boolean onlyShowFallback = intent.getBooleanExtra(
+                    LockPatternUtils.LOCKSCREEN_BIOMETRIC_WEAK_FALLBACK, false);
             final boolean weakBiometricAvailable =
                     mChooseLockSettingsHelper.utils().isBiometricWeakInstalled();
 
@@ -326,6 +342,9 @@ public class ChooseLockGeneric extends SettingsActivity {
                     } else if (KEY_UNLOCK_SET_PASSWORD.equals(key)) {
                         enabled = quality <= DevicePolicyManager.PASSWORD_QUALITY_COMPLEX;
                     }
+                    if (hideDisabled) {
+                        visible = visible && enabled;
+                    }
                     if (!visible || (onlyShowFallback && !allowedForFallback(key))) {
                         entries.removePreference(pref);
                     } else if (!enabled) {

src/com/android/settings/SetupChooseLockGeneric.java

@@ -18,11 +18,13 @@ package com.android.settings;
 
 import com.android.setupwizard.navigationbar.SetupWizardNavBar;
 
+import android.app.admin.DevicePolicyManager;
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.Resources;
 import android.os.Bundle;
 import android.preference.PreferenceFragment;
+import android.util.MutableBoolean;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
@@ -92,6 +94,27 @@ public class SetupChooseLockGeneric extends ChooseLockGeneric
             SetupWizardUtils.setHeaderText(getActivity(), getActivity().getTitle());
         }
 
+        /***
+         * Disables preferences that are less secure than required quality and shows only secure
+         * screen lock options here.
+         *
+         * @param quality the requested quality.
+         * @param allowBiometric whether to allow biometic screen lock
+         */
+        @Override
+        protected void disableUnusablePreferences(final int quality,
+                MutableBoolean allowBiometric) {
+            // At this part of the flow, the user has already indicated they want to add a pin,
+            // pattern or password, so don't show "None" or "Slide". We disable them here and set
+            // the HIDE_DISABLED flag to true to hide them. This only happens for setup wizard.
+            // We do the following max check here since the device may already have a Device Admin
+            // installed with a policy we need to honor.
+            final int newQuality = Math.max(quality,
+                    DevicePolicyManager.PASSWORD_QUALITY_SOMETHING);
+            super.disableUnusablePreferencesImpl(newQuality, allowBiometric,
+                    true /* hideDisabled */);
+        }
+
         @Override
         protected Intent getLockPasswordIntent(Context context, int quality, boolean isFallback,
                 int minLength, int maxLength, boolean requirePasswordToDecrypt,