Add SettingsPreferenceBindingFactory and support restriction

Bug: 377600992
Flag: com.android.settings.flags.catalyst
Test: testdpc
Change-Id: I14c37a3cfb1d69108ad4f5dabd4f35e8ec8899bd

src/com/android/settings/PreferenceRestrictionMixin.kt

@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2024 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
+
+import android.content.Context
+import android.os.UserHandle
+import androidx.annotation.CallSuper
+import com.android.settingslib.RestrictedLockUtilsInternal
+import com.android.settingslib.metadata.PreferenceRestrictionProvider
+
+/** Mixin to support restriction. */
+interface PreferenceRestrictionMixin : PreferenceRestrictionProvider {
+
+    val restrictionKey: String
+
+    val useAdminDisabledSummary: Boolean
+        get() = false
+
+    @CallSuper fun isEnabled(context: Context) = !context.hasBaseUserRestriction(restrictionKey)
+
+    override fun isRestricted(context: Context) =
+        RestrictedLockUtilsInternal.checkIfRestrictionEnforced(
+            context,
+            restrictionKey,
+            UserHandle.myUserId(),
+        ) != null
+}
+
+fun Context.hasBaseUserRestriction(restrictionKey: String) =
+    RestrictedLockUtilsInternal.hasBaseUserRestriction(this, restrictionKey, UserHandle.myUserId())

src/com/android/settings/SettingsApplication.java

@@ -46,6 +46,7 @@ import com.android.settingslib.datastore.BackupRestoreStorageManager;
 import com.android.settingslib.metadata.PreferenceScreenMetadata;
 import com.android.settingslib.metadata.PreferenceScreenRegistry;
 import com.android.settingslib.metadata.ProvidePreferenceScreenOptions;
+import com.android.settingslib.preference.PreferenceBindingFactory;
 import com.android.settingslib.spa.framework.common.SpaEnvironmentFactory;
 
 import com.google.android.setupcompat.util.WizardManagerHelper;
@@ -76,6 +77,7 @@ public class SettingsApplication extends Application {
         if (Flags.catalyst()) {
             PreferenceScreenRegistry.INSTANCE.setPreferenceScreensSupplier(
                     this::getPreferenceScreens);
+            PreferenceBindingFactory.setDefaultFactory(new SettingsPreferenceBindingFactory());
         }
 
         BackupRestoreStorageManager.getInstance(this)

src/com/android/settings/SettingsPreferenceBindingFactory.kt

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2024 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
+
+import android.os.UserHandle
+import androidx.preference.Preference
+import com.android.settingslib.RestrictedPreferenceHelperProvider
+import com.android.settingslib.metadata.PreferenceHierarchyNode
+import com.android.settingslib.preference.DefaultPreferenceBindingFactory
+import com.android.settingslib.preference.PreferenceBinding
+
+/** Preference binding factory for settings app. */
+class SettingsPreferenceBindingFactory : DefaultPreferenceBindingFactory() {
+    override fun bind(
+        preference: Preference,
+        node: PreferenceHierarchyNode,
+        preferenceBinding: PreferenceBinding?,
+    ) {
+        super.bind(preference, node, preferenceBinding)
+
+        // handle restriction consistently
+        val metadata = node.metadata
+        if (metadata is PreferenceRestrictionMixin) {
+            if (preference is RestrictedPreferenceHelperProvider) {
+                preference.getRestrictedPreferenceHelper().apply {
+                    val restrictionKey = metadata.restrictionKey
+                    if (!preference.context.hasBaseUserRestriction(restrictionKey)) {
+                        useAdminDisabledSummary(metadata.useAdminDisabledSummary)
+                        checkRestrictionAndSetDisabled(restrictionKey, UserHandle.myUserId())
+                    }
+                }
+            }
+        }
+    }
+}