Merge Screen Attention and Screen timeout Settings.

Bug: 155051311
Test: atest
Change-Id: I6f6ee52618eab629a41b28982be32ead5f9ba08d

src/com/android/settings/display/ScreenTimeoutPreferenceController.java

@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2020 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.display;
+
+import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT;
+
+import static com.android.settings.display.ScreenTimeoutSettings.FALLBACK_SCREEN_TIMEOUT_VALUE;
+
+import android.app.admin.DevicePolicyManager;
+import android.content.Context;
+import android.os.UserHandle;
+import android.os.UserManager;
+import android.provider.Settings;
+
+import com.android.settings.R;
+import com.android.settings.core.BasePreferenceController;
+import com.android.settingslib.RestrictedLockUtils;
+import com.android.settingslib.RestrictedLockUtilsInternal;
+
+/**
+ * The controller of {@link ScreenTimeoutSettings}.
+ */
+public class ScreenTimeoutPreferenceController extends BasePreferenceController {
+    public static String PREF_NAME = "screen_timeout";
+
+    public ScreenTimeoutPreferenceController(Context context, String key) {
+        super(context, key);
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        return isDisableByAdmin() ? UNSUPPORTED_ON_DEVICE : AVAILABLE;
+    }
+
+    @Override
+    public CharSequence getSummary() {
+        if (isDisableByAdmin()) {
+            return mContext.getString(com.android.settings.R.string.disabled_by_policy_title);
+        } else {
+            final long currentTimeout = getCurrentScreenTimeout();
+            final CharSequence[] timeoutEntries = mContext.getResources().getStringArray(
+                    R.array.screen_timeout_entries);
+            final CharSequence[] timeoutValues = mContext.getResources().getStringArray(
+                    R.array.screen_timeout_values);
+            final CharSequence description = TimeoutPreferenceController.getTimeoutDescription(
+                    currentTimeout, timeoutEntries, timeoutValues);
+            return mContext.getString(R.string.screen_timeout_summary, description);
+        }
+    }
+
+    private boolean isDisableByAdmin() {
+        final DevicePolicyManager dpm = mContext.getSystemService(DevicePolicyManager.class);
+        if (dpm != null) {
+            final RestrictedLockUtils.EnforcedAdmin admin =
+                    RestrictedLockUtilsInternal.checkIfRestrictionEnforced(
+                            mContext, UserManager.DISALLOW_CONFIG_SCREEN_TIMEOUT,
+                            UserHandle.myUserId());
+            return admin != null;
+        }
+        return false;
+    }
+
+    private long getCurrentScreenTimeout() {
+        return Settings.System.getLong(mContext.getContentResolver(),
+                SCREEN_OFF_TIMEOUT, FALLBACK_SCREEN_TIMEOUT_VALUE);
+    }
+}