[Catalyst] Introduce the FooterPreferenceMetadata and FooterPreferenceBinding

Test: manual test
Bug: 335132588
Flag: com.android.settings.flags.catalyst
Change-Id: Iff63b53ea335c96358a5278bd7e9a4d291c0b6d7

src/com/android/settings/SettingsPreferenceBindingFactory.kt

@@ -20,8 +20,11 @@ import androidx.preference.Preference
 import com.android.settings.restriction.PreferenceRestrictionMixin
 import com.android.settings.restriction.getRestrictionEnforcedAdmin
 import com.android.settings.restriction.hasBaseUserRestriction
+import com.android.settings.widget.FooterPreferenceBinding
+import com.android.settings.widget.FooterPreferenceMetadata
 import com.android.settingslib.RestrictedPreferenceHelperProvider
 import com.android.settingslib.metadata.PreferenceHierarchyNode
+import com.android.settingslib.metadata.PreferenceMetadata
 import com.android.settingslib.preference.DefaultPreferenceBindingFactory
 import com.android.settingslib.preference.PreferenceBinding
 
@@ -49,4 +52,11 @@ class SettingsPreferenceBindingFactory : DefaultPreferenceBindingFactory() {
             }
         }
     }
+
+    override fun getPreferenceBinding(metadata: PreferenceMetadata) =
+        metadata as? PreferenceBinding
+            ?: when (metadata) {
+                is FooterPreferenceMetadata -> FooterPreferenceBinding.INSTANCE
+                else -> super.getPreferenceBinding(metadata)
+            }
 }

src/com/android/settings/connecteddevice/BluetoothFooterPreference.kt

@@ -25,28 +25,24 @@ import com.android.settings.R
 import com.android.settings.bluetooth.Utils
 import com.android.settings.core.SubSettingLauncher
 import com.android.settings.location.BluetoothScanningFragment
+import com.android.settings.widget.FooterPreferenceBinding
+import com.android.settings.widget.FooterPreferenceMetadata
 import com.android.settingslib.metadata.PreferenceMetadata
-import com.android.settingslib.metadata.PreferenceSummaryProvider
-import com.android.settingslib.preference.PreferenceBinding
+import com.android.settingslib.metadata.PreferenceTitleProvider
 import com.android.settingslib.widget.FooterPreference
 
 class BluetoothFooterPreference(private val bluetoothDataStore: BluetoothDataStore) :
-    PreferenceMetadata, PreferenceBinding, PreferenceSummaryProvider {
+    FooterPreferenceMetadata, FooterPreferenceBinding, PreferenceTitleProvider {
 
     override val key: String
         get() = KEY
 
-    override fun isIndexable(context: Context) = false
-
     override fun dependencies(context: Context) = arrayOf(BluetoothPreference.KEY)
 
     override fun intent(context: Context): Intent? = subSettingLauncher(context).toIntent()
 
-    override fun createWidget(context: Context) = FooterPreference(context)
-
     override fun bind(preference: Preference, metadata: PreferenceMetadata) {
         super.bind(preference, metadata)
-        preference.isSelectable = false
         val bluetoothDisabled = bluetoothDataStore.getBoolean(BluetoothPreference.KEY) != true
         val footerPreference = preference as FooterPreference
         val context = preference.context
@@ -64,7 +60,7 @@ class BluetoothFooterPreference(private val bluetoothDataStore: BluetoothDataSto
             .setDestination(BluetoothScanningFragment::class.java.name)
             .setSourceMetricsCategory(SettingsEnums.BLUETOOTH_FRAGMENT)
 
-    override fun getSummary(context: Context): CharSequence? {
+    override fun getTitle(context: Context): CharSequence? {
         val bluetoothDisabled = bluetoothDataStore.getBoolean(BluetoothPreference.KEY) != true
         val resId =
             if (bluetoothDisabled && Utils.isBluetoothScanningEnabled(context)) {

src/com/android/settings/widget/FooterPreference.kt

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2025 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.widget
+
+import android.content.Context
+import androidx.preference.Preference
+import com.android.settingslib.metadata.PreferenceMetadata
+import com.android.settingslib.preference.PreferenceBinding
+import com.android.settingslib.widget.FooterPreference
+import com.android.settingslib.widget.preference.footer.R
+
+/** Metadata of [FooterPreference]. */
+interface FooterPreferenceMetadata : PreferenceMetadata {
+    override val icon: Int
+        get() = R.drawable.settingslib_ic_info_outline_24
+
+    override fun isIndexable(context: Context) = false
+}
+
+/** Binding for [FooterPreferenceMetadata]. */
+interface FooterPreferenceBinding : PreferenceBinding {
+    override fun createWidget(context: Context) = FooterPreference(context)
+
+    override fun bind(preference: Preference, metadata: PreferenceMetadata) {
+        super.bind(preference, metadata)
+        // In FooterPreference, setSummary is redirected to setTitle, and title is
+        // reset unexpectedly. So rebind the title again.
+        preference.title = metadata.getPreferenceTitle(preference.context)
+        preference.isSelectable = false
+    }
+
+    companion object {
+        @JvmStatic val INSTANCE = object : FooterPreferenceBinding {}
+    }
+}