Add condition provider access to settings.

Pull NotificationAccessSettings out into a reusable base class
and reuse all of it for a new condition providers settings page.

As with notification listeners, the entire section is hidden if
no apps provide conditions.

Change-Id: Ib5273f3362e392d99647347c23a514e4590f7ac9

src/com/android/settings/notification/ConditionProviderSettings.java

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2014 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.notification;
+
+import android.content.Context;
+import android.content.pm.PackageManager;
+import android.provider.Settings;
+import android.service.notification.ConditionProviderService;
+
+import com.android.settings.R;
+
+public class ConditionProviderSettings extends ManagedServiceSettings {
+    private static final String TAG = ConditionProviderSettings.class.getSimpleName();
+    private static final Config CONFIG = getConditionProviderConfig();
+
+    private static Config getConditionProviderConfig() {
+        final Config c = new Config();
+        c.tag = TAG;
+        c.setting = Settings.Secure.ENABLED_CONDITION_PROVIDERS;
+        c.intentAction = ConditionProviderService.SERVICE_INTERFACE;
+        c.permission = android.Manifest.permission.BIND_CONDITION_PROVIDER_SERVICE;
+        c.noun = "condition provider";
+        c.warningDialogTitle = R.string.condition_provider_security_warning_title;
+        c.warningDialogSummary = R.string.condition_provider_security_warning_summary;
+        c.emptyText = R.string.no_condition_providers;
+        return c;
+    }
+
+    @Override
+    protected Config getConfig() {
+        return CONFIG;
+    }
+
+    public static int getProviderCount(PackageManager pm) {
+        return getServicesCount(CONFIG, pm);
+    }
+
+    public static int getEnabledProviderCount(Context context) {
+        return getEnabledServicesCount(CONFIG, context);
+    }
+}