notif: Add support group summary notifications to Pigeon bindings

This adds support for creating a group summary notification:
  https://developer.android.com/develop/ui/views/notifications/group#group-summary

Author: rajveermalviya

android/app/src/main/kotlin/com/zulip/flutter/Notifications.g.kt

@@ -82,6 +82,31 @@ data class PendingIntent (
     )
   }
 }
+
+/**
+ * Corresponds to `androidx.core.app.NotificationCompat.InboxStyle`
+ *
+ * See: https://developer.android.com/reference/androidx/core/app/NotificationCompat.InboxStyle
+ *
+ * Generated class from Pigeon that represents data sent in messages.
+ */
+data class InboxStyle (
+  val summaryText: String
+
+) {
+  companion object {
+    @Suppress("LocalVariableName")
+    fun fromList(__pigeon_list: List<Any?>): InboxStyle {
+      val summaryText = __pigeon_list[0] as String
+      return InboxStyle(summaryText)
+    }
+  }
+  fun toList(): List<Any?> {
+    return listOf(
+      summaryText,
+    )
+  }
+}
 private object NotificationsPigeonCodec : StandardMessageCodec() {
   override fun readValueOfType(type: Byte, buffer: ByteBuffer): Any? {
     return when (type) {
@@ -90,6 +115,11 @@ private object NotificationsPigeonCodec : StandardMessageCodec() {
           PendingIntent.fromList(it)
         }
       }
+      130.toByte() -> {
+        return (readValue(buffer) as? List<Any?>)?.let {
+          InboxStyle.fromList(it)
+        }
+      }
       else -> super.readValueOfType(type, buffer)
     }
   }
@@ -99,6 +129,10 @@ private object NotificationsPigeonCodec : StandardMessageCodec() {
         stream.write(129)
         writeValue(stream, value.toList())
       }
+      is InboxStyle -> {
+        stream.write(130)
+        writeValue(stream, value.toList())
+      }
       else -> super.writeValue(stream, value)
     }
   }
@@ -125,7 +159,7 @@ interface AndroidNotificationHostApi {
    *   https://developer.android.com/reference/kotlin/android/app/NotificationManager.html#notify
    *   https://developer.android.com/reference/androidx/core/app/NotificationCompat.Builder
    */
-  fun notify(tag: String?, id: Long, channelId: String, color: Long?, contentIntent: PendingIntent?, contentText: String?, contentTitle: String?, extras: Map<String?, String?>?, smallIconResourceName: String?)
+  fun notify(tag: String?, id: Long, channelId: String, color: Long?, contentIntent: PendingIntent?, contentText: String?, contentTitle: String?, extras: Map<String?, String?>?, smallIconResourceName: String?, groupKey: String?, isGroupSummary: Boolean?, inboxStyle: InboxStyle?, autoCancel: Boolean?)
 
   companion object {
     /** The codec used by AndroidNotificationHostApi. */
@@ -150,8 +184,12 @@ interface AndroidNotificationHostApi {
             val contentTitleArg = args[6] as String?
             val extrasArg = args[7] as Map<String?, String?>?
             val smallIconResourceNameArg = args[8] as String?
+            val groupKeyArg = args[9] as String?
+            val isGroupSummaryArg = args[10] as Boolean?
+            val inboxStyleArg = args[11] as InboxStyle?
+            val autoCancelArg = args[12] as Boolean?
             val wrapped: List<Any?> = try {
-              api.notify(tagArg, idArg, channelIdArg, colorArg, contentIntentArg, contentTextArg, contentTitleArg, extrasArg, smallIconResourceNameArg)
+              api.notify(tagArg, idArg, channelIdArg, colorArg, contentIntentArg, contentTextArg, contentTitleArg, extrasArg, smallIconResourceNameArg, groupKeyArg, isGroupSummaryArg, inboxStyleArg, autoCancelArg)
               listOf(null)
             } catch (exception: Throwable) {
               wrapError(exception)

android/app/src/main/kotlin/com/zulip/flutter/ZulipPlugin.kt

@@ -29,7 +29,11 @@ private class AndroidNotificationHost(val context: Context)
         contentText: String?,
         contentTitle: String?,
         extras: Map<String?, String?>?,
-        smallIconResourceName: String?
+        smallIconResourceName: String?,
+        groupKey: String?,
+        isGroupSummary: Boolean?,
+        inboxStyle: InboxStyle?,
+        autoCancel: Boolean?
     ) {
         val notification = NotificationCompat.Builder(context, channelId).apply {
             color?.let { setColor(it.toInt()) }
@@ -51,6 +55,13 @@ private class AndroidNotificationHost(val context: Context)
                 Bundle().apply { it.forEach { (k, v) -> putString(k, v) } } ) }
             smallIconResourceName?.let { setSmallIcon(context.resources.getIdentifier(
                 it, "drawable", context.packageName)) }
+            groupKey?.let { setGroup(it) }
+            isGroupSummary?.let { setGroupSummary(it) }
+            inboxStyle?.let { setStyle(
+                NotificationCompat.InboxStyle()
+                    .setSummaryText(it.summaryText)
+            ) }
+            autoCancel?.let { setAutoCancel(it) }
         }.build()
         NotificationManagerCompat.from(context).notify(tag, id.toInt(), notification)
     }

lib/host/android_notifications.g.dart

@@ -53,6 +53,30 @@ class PendingIntent {
   }
 }
 
+/// Corresponds to `androidx.core.app.NotificationCompat.InboxStyle`
+///
+/// See: https://developer.android.com/reference/androidx/core/app/NotificationCompat.InboxStyle
+class InboxStyle {
+  InboxStyle({
+    required this.summaryText,
+  });
+
+  String summaryText;
+
+  Object encode() {
+    return <Object?>[
+      summaryText,
+    ];
+  }
+
+  static InboxStyle decode(Object result) {
+    result as List<Object?>;
+    return InboxStyle(
+      summaryText: result[0]! as String,
+    );
+  }
+}
+
 
 class _PigeonCodec extends StandardMessageCodec {
   const _PigeonCodec();
@@ -61,6 +85,9 @@ class _PigeonCodec extends StandardMessageCodec {
     if (value is PendingIntent) {
       buffer.putUint8(129);
       writeValue(buffer, value.encode());
+    } else     if (value is InboxStyle) {
+      buffer.putUint8(130);
+      writeValue(buffer, value.encode());
     } else {
       super.writeValue(buffer, value);
     }
@@ -71,6 +98,8 @@ class _PigeonCodec extends StandardMessageCodec {
     switch (type) {
       case 129: 
         return PendingIntent.decode(readValue(buffer)!);
+      case 130: 
+        return InboxStyle.decode(readValue(buffer)!);
       default:
         return super.readValueOfType(type, buffer);
     }
@@ -107,15 +136,15 @@ class AndroidNotificationHostApi {
   /// See:
   ///   https://developer.android.com/reference/kotlin/android/app/NotificationManager.html#notify
   ///   https://developer.android.com/reference/androidx/core/app/NotificationCompat.Builder
-  Future<void> notify({String? tag, required int id, required String channelId, int? color, PendingIntent? contentIntent, String? contentText, String? contentTitle, Map<String?, String?>? extras, String? smallIconResourceName,}) async {
+  Future<void> notify({String? tag, required int id, required String channelId, int? color, PendingIntent? contentIntent, String? contentText, String? contentTitle, Map<String?, String?>? extras, String? smallIconResourceName, String? groupKey, bool? isGroupSummary, InboxStyle? inboxStyle, bool? autoCancel,}) async {
     final String __pigeon_channelName = 'dev.flutter.pigeon.zulip.AndroidNotificationHostApi.notify$__pigeon_messageChannelSuffix';
     final BasicMessageChannel<Object?> __pigeon_channel = BasicMessageChannel<Object?>(
       __pigeon_channelName,
       pigeonChannelCodec,
       binaryMessenger: __pigeon_binaryMessenger,
     );
     final List<Object?>? __pigeon_replyList =
-        await __pigeon_channel.send(<Object?>[tag, id, channelId, color, contentIntent, contentText, contentTitle, extras, smallIconResourceName]) as List<Object?>?;
+        await __pigeon_channel.send(<Object?>[tag, id, channelId, color, contentIntent, contentText, contentTitle, extras, smallIconResourceName, groupKey, isGroupSummary, inboxStyle, autoCancel]) as List<Object?>?;
     if (__pigeon_replyList == null) {
       throw _createConnectionError(__pigeon_channelName);
     } else if (__pigeon_replyList.length > 1) {

pigeon/notifications.dart

@@ -27,6 +27,15 @@ class PendingIntent {
   final int flags;
 }
 
+/// Corresponds to `androidx.core.app.NotificationCompat.InboxStyle`
+///
+/// See: https://developer.android.com/reference/androidx/core/app/NotificationCompat.InboxStyle
+class InboxStyle {
+  InboxStyle({required this.summaryText});
+
+  final String summaryText;
+}
+
 @HostApi()
 abstract class AndroidNotificationHostApi {
   /// Corresponds to `android.app.NotificationManager.notify`,
@@ -59,6 +68,10 @@ abstract class AndroidNotificationHostApi {
     String? contentTitle,
     Map<String?, String?>? extras,
     String? smallIconResourceName,
+    String? groupKey,
+    bool? isGroupSummary,
+    InboxStyle? inboxStyle,
+    bool? autoCancel,
     // NotificationCompat.Builder has lots more methods; add as needed.
   });
 }

test/model/binding.dart

@@ -503,6 +503,10 @@ class FakeAndroidNotificationHostApi implements AndroidNotificationHostApi {
     String? contentTitle,
     Map<String?, String?>? extras,
     String? smallIconResourceName,
+    String? groupKey,
+    bool? isGroupSummary,
+    InboxStyle? inboxStyle,
+    bool? autoCancel,
   }) async {
     _notifyCalls.add((
       tag: tag,
@@ -514,6 +518,10 @@ class FakeAndroidNotificationHostApi implements AndroidNotificationHostApi {
       contentTitle: contentTitle,
       extras: extras,
       smallIconResourceName: smallIconResourceName,
+      groupKey: groupKey,
+      isGroupSummary: isGroupSummary,
+      inboxStyle: inboxStyle,
+      autoCancel: autoCancel,
     ));
   }
 }
@@ -528,4 +536,8 @@ typedef AndroidNotificationHostApiNotifyCall = ({
   String? contentTitle,
   Map<String?, String?>? extras,
   String? smallIconResourceName,
+  String? groupKey,
+  bool? isGroupSummary,
+  InboxStyle? inboxStyle,
+  bool? autoCancel,
 });