Merge sub pages for lock/unlock into 1 xml.

And create PreferenceControllers for each setting

The page is still pretty janky and controllers are invoked manually.
Next CL will clean these up.

Bug: 32953042
Test: TODO
Change-Id: I1d7478324f5de4fdb464d79f89086f7e79c0ee67

src/com/android/settings/security/VisiblePatternProfilePreferenceController.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2018 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.admin.DevicePolicyManager.PASSWORD_QUALITY_SOMETHING;
+
+import android.content.Context;
+import android.os.UserHandle;
+import android.os.UserManager;
+
+import com.android.internal.widget.LockPatternUtils;
+import com.android.settings.Utils;
+import com.android.settings.core.TogglePreferenceController;
+import com.android.settings.overlay.FeatureFactory;
+
+public class VisiblePatternProfilePreferenceController extends TogglePreferenceController {
+
+    private static final String KEY_VISIBLE_PATTERN_PROFILE = "visiblepattern_profile";
+
+    private final LockPatternUtils mLockPatternUtils;
+    private final UserManager mUm;
+    private final int mUserId = UserHandle.myUserId();
+    private final int mProfileChallengeUserId;
+
+    public VisiblePatternProfilePreferenceController(Context context) {
+        super(context, KEY_VISIBLE_PATTERN_PROFILE);
+        mUm = (UserManager) context.getSystemService(Context.USER_SERVICE);
+        mLockPatternUtils = FeatureFactory.getFactory(context)
+                .getSecurityFeatureProvider()
+                .getLockPatternUtils(context);
+        mProfileChallengeUserId = Utils.getManagedProfileId(mUm, mUserId);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        if (mLockPatternUtils.isSecure(mProfileChallengeUserId)
+                && mLockPatternUtils.getKeyguardStoredPasswordQuality(mProfileChallengeUserId)
+                == PASSWORD_QUALITY_SOMETHING) {
+            return AVAILABLE;
+        }
+        return DISABLED_FOR_USER;
+    }
+
+    @Override
+    public boolean isChecked() {
+        return mLockPatternUtils.isVisiblePatternEnabled(
+                mProfileChallengeUserId);
+    }
+
+    @Override
+    public boolean setChecked(boolean isChecked) {
+        if (Utils.startQuietModeDialogIfNecessary(mContext, mUm, mProfileChallengeUserId)) {
+            return false;
+        }
+        mLockPatternUtils.setVisiblePatternEnabled(isChecked, mProfileChallengeUserId);
+        return true;
+    }
+}