CustomMessageMetadata

@SinceMirai("0.38.0") abstract class CustomMessageMetadata : CustomMessage, MessageMetadata

自定义消息元数据.

实现方法:

实现一个类继承 CustomMessageMetadata, 添加 @Serializable (来自 kotlinx.serialization)
添加伴生对象, 继承 CustomMessage.ProtoBufSerializerFactory 或 CustomMessage.JsonSerializerFactory, 或 CustomMessage.Factory
在需要解析消息前调用一次伴生对象以注册

See Also

CustomMessage

Key	`companion object Key : Key<CustomMessageMetadata>`

自定义消息元数据.

CustomMessageMetadata()

contentToString	转为最接近官方格式的字符串. 如 `At(member) + "test"` 将转为 `"@群名片 test"`. `fun contentToString(): String`
customToString	`open fun customToString(): ByteArray`
toString	得到包含 mirai 消息元素代码的, 易读的字符串. 如 `At(member) + "test"` 将转为 `"[mirai:at:qqId]test"` `fun toString(): String`

此 Key 指代的 Message 类型名. 一般为 class.simpleName, 如 "QuoteReply", "PlainText"

val typeName: String

flatten	扁平化 Message `fun Message.flatten(): Sequence<SingleMessage>`
isContentEmpty	判断消息内容是否为空. `fun Message.isContentEmpty(): Boolean`
isContentNotEmpty	`fun Message.isContentNotEmpty(): Boolean`
isNotPlain	`fun Message.isNotPlain(): Boolean`
isNotPlain2	`fun Message.isNotPlain2(): Boolean`
isPlain	`fun Message.isPlain(): Boolean`
isPlain2	`fun Message.isPlain2(): Boolean`
repeat	`fun Message.repeat(count: Int): MessageChain`
repeat2	`fun Message.repeat2(count: Int): MessageChain`
sendTo	`suspend fun <C : Contact> Message.sendTo(contact: C): MessageReceipt<C>`
times	`operator fun Message.times(count: Int): MessageChain`
toForwardMessage	转换为 ForwardMessage `fun Message.toForwardMessage(sender: User, time: Int = currentTimeSeconds.toInt(), displayStrategy: DisplayStrategy = DisplayStrategy): ForwardMessage` `fun Message.toForwardMessage(senderId: Long, senderName: String, time: Int = currentTimeSeconds.toInt(), displayStrategy: DisplayStrategy = DisplayStrategy): ForwardMessage`