Convert the rest of encryption page into pref controller

Bug: 32953042 Test: robotests Change-Id: I6c1b28314a988e6499065ddaee2aeae0ac28c537
2017-11-02 14:09:34 -07:00
parent c58a88368f
commit b2aae6cd57
12 changed files with 465 additions and 118 deletions
--- a/src/com/android/settings/security/ResetCredentialsPreferenceController.java
+++ b/src/com/android/settings/security/ResetCredentialsPreferenceController.java
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2017 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 android.content.Context;
+import android.os.UserManager;
+import android.security.KeyStore;
+import android.support.v7.preference.PreferenceScreen;
+
+import com.android.settingslib.RestrictedPreference;
+import com.android.settingslib.core.lifecycle.Lifecycle;
+import com.android.settingslib.core.lifecycle.LifecycleObserver;
+import com.android.settingslib.core.lifecycle.events.OnResume;
+
+public class ResetCredentialsPreferenceController extends RestrictedEncryptionPreferenceController
+        implements LifecycleObserver, OnResume {
+
+    private static final String KEY_RESET_CREDENTIALS = "credentials_reset";
+
+    private final KeyStore mKeyStore;
+
+    private RestrictedPreference mPreference;
+
+    public ResetCredentialsPreferenceController(Context context, Lifecycle lifecycle) {
+        super(context, UserManager.DISALLOW_CONFIG_CREDENTIALS);
+        mKeyStore = KeyStore.getInstance();
+        if (lifecycle != null) {
+            lifecycle.addObserver(this);
+        }
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY_RESET_CREDENTIALS;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        mPreference = (RestrictedPreference) screen.findPreference(getPreferenceKey());
+    }
+
+    @Override
+    public void onResume() {
+        if (mPreference != null && !mPreference.isDisabledByAdmin()) {
+            mPreference.setEnabled(!mKeyStore.isEmpty());
+        }
+    }
+}