/// <summary>
/// 发送消息
/// </summary>
/// <typeparam name="TTarget"></typeparam>
/// <param name="args"></param>
/// <returns></returns>
public object Send <TTarget>(MessageAcceptArgs args)
where TTarget : IMessageUsable
{
var vm = MessageViewModels.SingleOrDefault(v => v is TTarget);
return(SendMsg(vm, args));
}
/// <summary>
/// 异步发送消息
/// </summary>
/// <typeparam name="TTarget">目标</typeparam>
/// <param name="args"></param>
/// <returns></returns>
public async Task <object> SendAsync <TTarget>(MessageAcceptArgs args)
where TTarget : IMessageUsable
{
var vm = MessageViewModels.SingleOrDefault(v => v is TTarget);
return(await SendMsgAsync(vm, args));
}
private async Task <object> SendMsgAsync(IMessageUsable vm, MessageAcceptArgs args)
{
if (vm != null && vm.Message != null)
{
return(await vm.Message.AcceptedMessageAsync(depencyViewModel, args));
}
return(null);
}
/// <summary>
/// 异步接收信息
/// </summary>
/// <param name="sender"></param>
/// <param name="args"></param>
/// <returns></returns>
internal async Task <object> AcceptMsgAsync(IMessageUsable sender, MessageAcceptArgs args)
{
if (AcceptedMessageAsync != null)
{
return(await AcceptedMessageAsync.Invoke(sender, args));
}
return(null);
}
private object SendMsg(IMessageUsable vm, MessageAcceptArgs args)
{
if (vm != null && vm.Message != null)
{
return(vm.Message.AcceptMsg(depencyViewModel, args));
}
return(null);
}
private object Message_AcceptedMessage(IMessageUsable sender, MessageAcceptArgs args)
{
if (!MsgHandle.TryGetValue(args.Key, out var handle))
{
throw new ArgumentException($"不存在key={args.Key} 的处理方法");
}
return(handle.Invoke(sender, args));
}
private object ShowMsgHandle(IMessageUsable sender, MessageAcceptArgs e)
{
if (e.Param is MsgShowArgs msa)
{
NeedShowMsg?.Invoke(msa);
}
return(null);
}
private object SetVisitContent(IMessageUsable messageUsable, MessageAcceptArgs e)
{
if (e.Param is uint id)//直接发送cid
{
CurrentContent = Contents.Single(c => c.Id == id);
}
return(true);
}
private object SetLeftPartVisibility(IMessageUsable messageUsable, MessageAcceptArgs e)
{
if (e.Param is bool b)
{
ParWidth = b ? _ParWidth : 0;
}
return(true);
}
/// <summary>
/// 收到信息
/// </summary>
/// <param name="sender">发送者</param>
/// <param name="args">参数</param>
internal object AcceptMsg(IMessageUsable sender, MessageAcceptArgs args)
{
return(AcceptedMessage?.Invoke(sender, args));
}
private async Task <object> Message_AcceptedMessageAsync(IMessageUsable sender, MessageAcceptArgs args)
{
if (!AsyncMsgHandle.TryGetValue(args.Key, out var handle))
{
throw new ArgumentException($"不存在key={args.Key} 的异步处理方法");
}
return(await handle.Invoke(sender, args));
}
