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LocalFlowEnvironment文件丢失，需要重写

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This commit is contained in:
fengjiayi
2025-06-22 21:53:37 +08:00
parent 999060b67a
commit 97df2a04b2
58 changed files with 4285 additions and 354 deletions
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13
NodeFlow/Model/NodeModelBaseData.cs → NodeFlow/Model/Node/NodeModelBaseData.cs
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@@ -96,11 +96,19 @@ namespace Serein.NodeFlow.Model
{
PreviousNodes = new Dictionary<ConnectionInvokeType, List<IFlowNode>>();
SuccessorNodes = new Dictionary<ConnectionInvokeType, List<IFlowNode>>();
NeedResultNodes = new Dictionary<ConnectionArgSourceType, List<IFlowNode>>();
foreach (ConnectionInvokeType ctType in NodeStaticConfig.ConnectionTypes)
{
PreviousNodes[ctType] = new List<IFlowNode>();
SuccessorNodes[ctType] = new List<IFlowNode>();
}
foreach (ConnectionArgSourceType ctType in NodeStaticConfig.ConnectionArgSourceTypes)
{
NeedResultNodes[ctType] = new List<IFlowNode>();
}
ChildrenNode = new List<IFlowNode>();
DebugSetting = new NodeDebugSetting(this);
this.Env = environment;
@@ -116,6 +124,11 @@ namespace Serein.NodeFlow.Model
/// 不同分支的子节点（流程调用）
/// </summary>
public Dictionary<ConnectionInvokeType, List<IFlowNode>> SuccessorNodes { get; set; }
/// <summary>
/// 需要该节点返回值作为入参参数的节点集合
/// </summary>
public Dictionary<ConnectionArgSourceType, List<IFlowNode>> NeedResultNodes { get;}
/// <summary>
/// 该节点的容器节点

4
NodeFlow/Model/NodeModelBaseFunc.cs → NodeFlow/Model/Node/NodeModelBaseFunc.cs
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@@ -57,7 +57,7 @@ namespace Serein.NodeFlow.Model
return;
}
/// <summary>
/* /// <summary>
/// 移除该节点
/// </summary>
public virtual void Remove()
@@ -101,7 +101,7 @@ namespace Serein.NodeFlow.Model
this.DisplayName = null;
this.Env = null;
}
}*/
/// <summary>
/// 执行节点对应的方法

2
NodeFlow/Model/SingleActionNode.cs → NodeFlow/Model/Node/SingleActionNode.cs
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@@ -2,7 +2,7 @@
using Serein.Library;
using System.Security.AccessControl;
namespace Serein.NodeFlow.Model
namespace Serein.NodeFlow.Model.Node
{
/// <summary>
/// 单动作节点（用于动作控件)

0
NodeFlow/Model/SingleConditionNode.cs → NodeFlow/Model/Node/SingleConditionNode.cs
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0
NodeFlow/Model/SingleExpOpNode.cs → NodeFlow/Model/Node/SingleExpOpNode.cs
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10
NodeFlow/Model/SingleFlipflopNode.cs → NodeFlow/Model/Node/SingleFlipflopNode.cs
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@@ -3,7 +3,7 @@ using Serein.Library;
using Serein.Library.Utils;
using System;
namespace Serein.NodeFlow.Model
namespace Serein.NodeFlow.Model.Node
{
/// <summary>
/// 触发器节点
@@ -27,9 +27,9 @@ namespace Serein.NodeFlow.Model
#region 执行前中断
if (DebugSetting.IsInterrupt) // 执行触发前
{
string guid = this.Guid.ToString();
await this.DebugSetting.GetInterruptTask.Invoke();
await Console.Out.WriteLineAsync($"[{this.MethodDetails.MethodName}]中断已取消，开始执行后继分支");
string guid = Guid.ToString();
await DebugSetting.GetInterruptTask.Invoke();
await Console.Out.WriteLineAsync($"[{MethodDetails.MethodName}]中断已取消，开始执行后继分支");
}
#endregion
@@ -61,7 +61,7 @@ namespace Serein.NodeFlow.Model
if (dynamicFlipflopContext.Type == TriggerDescription.Overtime)
{
throw new FlipflopException(base.MethodDetails.MethodName + "触发器超时触发。Guid" + base.Guid);
throw new FlipflopException(MethodDetails.MethodName + "触发器超时触发。Guid" + Guid);
}
object result = dynamicFlipflopContext.Value;
var flowReslt = new FlowResult(this, context, result);

7
NodeFlow/Model/SingleFlowCallNode.cs → NodeFlow/Model/Node/SingleFlowCallNode.cs
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@@ -119,7 +119,7 @@ namespace Serein.NodeFlow.Model
partial void OnIsShareParamChanged(bool value)
{
if (targetNode is null)
if (targetNode is null || targetNode.MethodDetails is null)
{
return;
}
@@ -219,14 +219,13 @@ namespace Serein.NodeFlow.Model
}
public override void Remove()
/*public override void Remove()
{
var tmp = this;
targetNode = null;
CacheMethodDetails = null;
}
*/
/// <summary>

6
NodeFlow/Model/SingleGlobalDataNode.cs → NodeFlow/Model/Node/SingleGlobalDataNode.cs
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@@ -96,7 +96,7 @@ namespace Serein.NodeFlow.Model
{
foreach (var nodeModel in ChildrenNode)
{
await nodeModel.Env.TakeOutNodeToContainerAsync(nodeModel.CanvasDetails.Guid, nodeModel.Guid);
nodeModel.Env.TakeOutNodeToContainer(nodeModel.CanvasDetails.Guid, nodeModel.Guid);
}
DataNode = null;
}
@@ -162,7 +162,7 @@ namespace Serein.NodeFlow.Model
KeyName = nodeInfo.CustomData?.KeyName;
}
/// <summary>
/* /// <summary>
/// 需要移除数据节点
/// </summary>
public override void Remove()
@@ -172,7 +172,7 @@ namespace Serein.NodeFlow.Model
}
// 移除数据节点
_ = this.Env.RemoveNodeAsync(DataNode.CanvasDetails.Guid, DataNode.Guid);
}
}*/
}
}

0
NodeFlow/Model/SingleNetScriptNode.cs → NodeFlow/Model/Node/SingleNetScriptNode.cs
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2
NodeFlow/Model/SingleScriptNode.cs → NodeFlow/Model/Node/SingleScriptNode.cs
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@@ -226,7 +226,7 @@ namespace Serein.NodeFlow.Model
scriptContext.OnExit();
};
var envEvent = (IFlowEnvironmentEvent)context.Env;
var envEvent = context.Env.Event;
envEvent.FlowRunComplete += onFlowStop; // 防止运行后台流程
if (token.IsCancellationRequested) return null;

4
NodeFlow/Model/SingleUINode.cs → NodeFlow/Model/Node/SingleUINode.cs
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@@ -6,7 +6,7 @@ using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.NodeFlow.Model
namespace Serein.NodeFlow.Model.Node
{
public class SingleUINode : NodeModelBase
{
@@ -24,7 +24,7 @@ namespace Serein.NodeFlow.Model
var result = await base.ExecutingAsync(context, token);
if (result.Value is IEmbeddedContent adapter)
{
this.Adapter = adapter;
Adapter = adapter;
context.NextOrientation = ConnectionInvokeType.IsSucceed;
}
else

451
NodeFlow/Model/Operation/ChangeNodeConnectionOperation.cs Normal file
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@@ -0,0 +1,451 @@
using Serein.Library;
using Serein.Library.Api;
using Serein.NodeFlow.Env;
using Serein.NodeFlow.Model.Node;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using static Serein.Library.Api.NodeConnectChangeEventArgs;
namespace Serein.NodeFlow.Model.Operation
{
/// <summary>
/// 节点连接状态发生改变
/// </summary>
internal class ChangeNodeConnectionOperation : OperationBase
{
public override string Theme => nameof(ChangeNodeConnectionOperation);
/// <summary>
/// 所在画布
/// </summary>
public required string CanvasGuid { get; set; }
/// <summary>
/// 连接关系中始节点的Guid
/// </summary>
public required string FromNodeGuid { get; set; }
/// <summary>
/// 连接关系中目标节点的Guid
/// </summary>
public required string ToNodeGuid { get; set; }
/// <summary>
/// 起始节点连接控制点类型
/// </summary>
public JunctionType FromNodeJunctionType { get; set; }
/// <summary>
/// 目标节点连接控制点类型
/// </summary>
public JunctionType ToNodeJunctionType { get; set; }
/// 连接类型
/// </summary>
public ConnectionInvokeType ConnectionInvokeType { get; set; }
/// <summary>
/// 表示此次需要在两个节点之间创建连接关系，或是移除连接关系
/// </summary>
public ConnectChangeType ChangeType { get; set; }
/// <summary>
/// 指示需要创建什么类型的连接线
/// </summary>
public JunctionOfConnectionType JunctionOfConnectionType { get; set; } = JunctionOfConnectionType.None;
/// <summary>
/// 节点对应的方法入参所需参数来源
/// </summary>
public ConnectionArgSourceType ConnectionArgSourceType { get; set; }
/// <summary>
/// 第几个参数
/// </summary>
public int ArgIndex { get; set; } = -1;
public override bool IsCanUndo => false;
#region 私有参数
private FlowCanvasDetails FlowCanvas;
private IFlowNode FromNode;
private IFlowNode ToNode;
#endregion
public override bool ValidationParameter()
{
if (JunctionOfConnectionType == JunctionOfConnectionType.None)
return false;
if (JunctionOfConnectionType == JunctionOfConnectionType.Arg && ArgIndex == -1)
return false;
if (!flowModelService.ContainsCanvasModel(CanvasGuid) // 不存在画布
|| !flowModelService.ContainsNodeModel(FromNodeGuid) // 不存在节点
|| !flowModelService.ContainsNodeModel(ToNodeGuid)) // 不存在节点
{
return false;
}
return true;
}
public override bool Execute()
{
if (!ValidationParameter()) return false;
if (!flowModelService.TryGetCanvasModel(CanvasGuid, out FlowCanvas) // 不存在画布
|| !flowModelService.TryGetNodeModel(FromNodeGuid, out FromNode) // 不存在节点
|| !flowModelService.TryGetNodeModel(ToNodeGuid, out ToNode)) // 不存在节点
{
return false;
}
if(ChangeType == ConnectChangeType.Create) // 创建连线时需要检查
{
(var jcType, var isCanConnection) = CheckConnect(FromNode, ToNode, FromNodeJunctionType, ToNodeJunctionType);
if (!isCanConnection)
{
SereinEnv.WriteLine(InfoType.WARN, "出现非预期的连接行为");
return false; // 出现不符预期的连接行为，忽略此次连接行为
}
// 如果起始控制点是“方法执行”,目标控制点是“方法调用”，需要反转 from to 节点
if (jcType == JunctionOfConnectionType.Invoke
&& FromNodeJunctionType == JunctionType.Execute
&& ToNodeJunctionType == JunctionType.NextStep)
{
// 如果 起始控制点 是“方法调用”，需要反转 from to 节点
(FromNode, ToNode) = (ToNode, FromNode);
}
// 如果起始控制点是“方法入参”,目标控制点是“返回值”，需要反转 from to 节点
if (jcType == JunctionOfConnectionType.Arg
&& FromNodeJunctionType == JunctionType.ArgData
&& ToNodeJunctionType == JunctionType.ReturnData)
{
(FromNode, ToNode) = (ToNode, FromNode);
}
}
//if (toNode is SingleFlipflopNode flipflopNode)
//{
// flowTaskManagement?.TerminateGlobalFlipflopRuning(flipflopNode); // 假设被连接的是全局触发器，尝试移除
//}
var state = (JunctionOfConnectionType, ChangeType) switch
{
(JunctionOfConnectionType.Invoke, NodeConnectChangeEventArgs.ConnectChangeType.Create) => CreateInvokeConnection(), // 创建节点之间的调用关系
(JunctionOfConnectionType.Invoke, NodeConnectChangeEventArgs.ConnectChangeType.Remove) => RemoveInvokeConnection(), // 移除节点之间的调用关系
(JunctionOfConnectionType.Arg, NodeConnectChangeEventArgs.ConnectChangeType.Create) => CreateArgConnection(), // 创建节点之间的参数传递关系
(JunctionOfConnectionType.Arg, NodeConnectChangeEventArgs.ConnectChangeType.Remove) => RemoveArgConnection(), // 移除节点之间的参数传递关系
_ => false
};
return state;
}
public override void ToInfo()
{
throw new NotImplementedException();
}
/// <summary>
/// 创建方法调用关系
/// </summary>
private bool CreateInvokeConnection()
{
IFlowNode fromNode = FromNode ;
IFlowNode toNode = ToNode;
ConnectionInvokeType invokeType = ConnectionInvokeType;
if (fromNode.ControlType == NodeControlType.FlowCall)
{
SereinEnv.WriteLine(InfoType.ERROR, $"流程接口节点不可调用下一个节点。" +
$"{Environment.NewLine}流程节点:{fromNode.Guid}");
return false;
}
var isOverwriting = false;
ConnectionInvokeType overwritingCt = ConnectionInvokeType.None;
var isPass = false;
#region 检查是否存在对应的连接
foreach (ConnectionInvokeType ctType in NodeStaticConfig.ConnectionTypes)
{
var count1 = fromNode.SuccessorNodes[ctType].Count(it => it.Guid.Equals(toNode.Guid));
var count2 = toNode.PreviousNodes[ctType].Count(it => it.Guid.Equals(fromNode.Guid));
var hasError1 = count1 > 0;
var hasError2 = count2 > 0;
if (hasError1 && hasError2)
{
if (ctType == invokeType)
{
SereinEnv.WriteLine(InfoType.WARN, $"起始节点已与目标节点存在连接。" +
$"{Environment.NewLine}起始节点:{fromNode.Guid}" +
$"{Environment.NewLine}目标节点:{toNode.Guid}");
return false;
}
isOverwriting = true; // 需要移除连接再创建连接
overwritingCt = ctType;
}
else
{
// 检查是否可能存在异常
if (!hasError1 && hasError2)
{
SereinEnv.WriteLine(InfoType.ERROR, $"起始节点不是目标节点的父节点，目标节点却是起始节点的子节点。" +
$"{Environment.NewLine}起始节点:{fromNode.Guid}" +
$"{Environment.NewLine}目标节点:{toNode.Guid}");
isPass = false;
}
else if (hasError1 && !hasError2)
{
//
SereinEnv.WriteLine(InfoType.ERROR, $"起始节点不是目标节点的父节点，目标节点却是起始节点的子节点。" +
$"{Environment.NewLine}起始节点:{fromNode.Guid}" +
$"{Environment.NewLine}目标节点:{toNode.Guid}" +
$"");
isPass = false;
}
else
{
isPass = true;
}
}
}
#endregion
if (isPass)
{
if (isOverwriting) // 需要替换
{
fromNode.SuccessorNodes[overwritingCt].Remove(toNode); // 从起始节点原有类别的子分支中移除
toNode.PreviousNodes[overwritingCt].Remove(fromNode); // 从目标节点原有类别的父分支中移除
}
fromNode.SuccessorNodes[invokeType].Add(toNode); // 添加到起始节点新类别的子分支
toNode.PreviousNodes[invokeType].Add(fromNode); // 添加到目标节点新类别的父分支
flowEnvironmentEvent.OnNodeConnectChanged(
new NodeConnectChangeEventArgs(
FlowCanvas.Guid,
fromNode.Guid, // 从哪个节点开始
toNode.Guid, // 连接到那个节点
JunctionOfConnectionType.Invoke,
invokeType, // 连接线的样式类型
NodeConnectChangeEventArgs.ConnectChangeType.Create // 是创建连接还是删除连接
));
// Invoke
// GetResult
return true;
}
else
{
return false;
}
}
/// <summary>
/// 移除方法调用关系
/// </summary>
private bool RemoveInvokeConnection()
{
FromNode.SuccessorNodes[ConnectionInvokeType].Remove(ToNode);
ToNode.PreviousNodes[ConnectionInvokeType].Remove(FromNode);
flowEnvironmentEvent.OnNodeConnectChanged(
new NodeConnectChangeEventArgs(
FlowCanvas.Guid,
FromNode.Guid,
ToNode.Guid,
JunctionOfConnectionType.Invoke,
ConnectionInvokeType,
NodeConnectChangeEventArgs.ConnectChangeType.Remove));
/* if (string.IsNullOrEmpty(ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceNodeGuid))
{
return false;
}
toNode.MethodDetails.ParameterDetailss[argIndex].ArgDataSourceNodeGuid = null;
toNode.MethodDetails.ParameterDetailss[argIndex].ArgDataSourceType = ConnectionArgSourceType.GetPreviousNodeData; // 恢复默认值
if (OperatingSystem.IsWindows())
{
UIContextOperation?.Invoke(() => Event.OnNodeConnectChanged(
new NodeConnectChangeEventArgs(
canvasGuid,
fromNode.Guid,
toNode.Guid,
argIndex,
JunctionOfConnectionType.Arg,
ConnectionArgSourceType.GetPreviousNodeData,
NodeConnectChangeEventArgs.ConnectChangeType.Remove)));
}*/
return true;
}
/// <summary>
/// 创建参数连接关系
/// </summary>
/// <exception cref="Exception"></exception>
private bool CreateArgConnection()
{
IFlowNode fromNodeControl = ToNode;
IFlowNode toNodeControl = ToNode;
ConnectionArgSourceType type = ConnectionArgSourceType;
int index = ArgIndex;
var toNodeArgSourceGuid = ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceNodeGuid; // 目标节点对应参数可能已经有其它连接
var toNodeArgSourceType = ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceType;
if (FromNode.Guid == toNodeArgSourceGuid
&& toNodeArgSourceType == ConnectionArgSourceType)
{
SereinEnv.WriteLine(InfoType.INFO, $"节点之间已建立过连接关系，此次操作将不会执行" +
$"起始节点：{FromNode.Guid}" +
$"目标节点：{ToNode.Guid}" +
$"参数索引：{ArgIndex}" +
$"参数类型：{ConnectionArgSourceType}");
/*flowEnvironmentEvent.OnNodeConnectChanged(
new NodeConnectChangeEventArgs(
FlowCanvas.Guid,
FromNode.Guid, // 从哪个节点开始
ToNode.Guid, // 连接到那个节点
ArgIndex, // 连接线的样式类型
JunctionOfConnectionType.Arg,
ConnectionArgSourceType,
NodeConnectChangeEventArgs.ConnectChangeType.Create // 是创建连接还是删除连接
)); // 通知UI */
return true;
}
if (!string.IsNullOrEmpty(toNodeArgSourceGuid)) // 更改关系获取
{
ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceNodeGuid = null;
ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceType = ConnectionArgSourceType.GetPreviousNodeData; // 恢复默认值
flowEnvironmentEvent.OnNodeConnectChanged(
new NodeConnectChangeEventArgs(
FlowCanvas.Guid,
FromNode.Guid,
ToNode.Guid,
ArgIndex,
JunctionOfConnectionType.Arg,
ConnectionArgSourceType.GetPreviousNodeData,
NodeConnectChangeEventArgs.ConnectChangeType.Remove));
}
ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceNodeGuid = FromNode.Guid; // 设置
ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceType = ConnectionArgSourceType;
flowEnvironmentEvent.OnNodeConnectChanged(
new NodeConnectChangeEventArgs(
FlowCanvas.Guid,
FromNode.Guid, // 从哪个节点开始
ToNode.Guid, // 连接到那个节点
ArgIndex, // 连接线的样式类型
JunctionOfConnectionType.Arg,
ConnectionArgSourceType,
NodeConnectChangeEventArgs.ConnectChangeType.Create // 是创建连接还是删除连接
)); // 通知UI
return true;
}
/// <summary>
/// 移除参数连接关系
/// </summary>
/// <param name="fromNodeControl"></param>
/// <param name="toNodeControl"></param>
/// <param name="index"></param>
private bool RemoveArgConnection()
{
ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceNodeGuid = null;
ToNode.MethodDetails.ParameterDetailss[ArgIndex].ArgDataSourceType = ConnectionArgSourceType.GetPreviousNodeData; // 恢复默认值
if (OperatingSystem.IsWindows())
{
flowEnvironmentEvent.OnNodeConnectChanged(
new NodeConnectChangeEventArgs(
FlowCanvas.Guid,
FromNode.Guid,
ToNode.Guid,
ArgIndex,
JunctionOfConnectionType.Arg,
ConnectionArgSourceType.GetPreviousNodeData,
NodeConnectChangeEventArgs.ConnectChangeType.Remove));
}
return true;
}
/// <summary>
/// 检查连接是否合法
/// </summary>
/// <param name="fromNode">发起连接的起始节点</param>
/// <param name="toNode">要连接的目标节点</param>
/// <param name="fromNodeJunctionType">发起连接节点的控制点类型</param>
/// <param name="toNodeJunctionType">被连接节点的控制点类型</param>
/// <returns></returns>
public static (JunctionOfConnectionType, bool) CheckConnect(IFlowNode fromNode,
IFlowNode toNode,
JunctionType fromNodeJunctionType,
JunctionType toNodeJunctionType)
{
var type = JunctionOfConnectionType.None;
var state = false;
if (fromNodeJunctionType == JunctionType.Execute)
{
if (toNodeJunctionType == JunctionType.NextStep && !fromNode.Guid.Equals(toNode.Guid))
{
// “方法执行”控制点拖拽到“下一节点”控制点，且不是同一个节点， 添加方法执行关系
type = JunctionOfConnectionType.Invoke;
state = true;
}
//else if (toNodeJunctionType == JunctionType.ArgData && fromNode.Guid.Equals(toNode.Guid))
//{
// // “方法执行”控制点拖拽到“方法入参”控制点，且是同一个节点，则添加获取参数关系，表示生成入参参数时自动从该节点的上一节点获取flowdata
// type = JunctionOfConnectionType.Arg;
// state = true;
//}
}
else if (fromNodeJunctionType == JunctionType.NextStep && !fromNode.Guid.Equals(toNode.Guid))
{
// “下一节点”控制点只能拖拽到“方法执行”控制点，且不能是同一个节点
if (toNodeJunctionType == JunctionType.Execute && !fromNode.Guid.Equals(toNode.Guid))
{
type = JunctionOfConnectionType.Invoke;
state = true;
}
}
else if (fromNodeJunctionType == JunctionType.ArgData)
{
//if (toNodeJunctionType == JunctionType.Execute && fromNode.Guid.Equals(toNode.Guid)) // 添加获取参数关系
//{
// // “方法入参”控制点拖拽到“方法执行”控制点，且是同一个节点，则添加获取参数关系，生成入参参数时自动从该节点的上一节点获取flowdata
// type = JunctionOfConnectionType.Arg;
// state = true;
//}
if (toNodeJunctionType == JunctionType.ReturnData && !fromNode.Guid.Equals(toNode.Guid))
{
// “”控制点拖拽到“方法返回值”控制点，且不是同一个节点，添加获取参数关系，生成参数时从目标节点获取flowdata
type = JunctionOfConnectionType.Arg;
state = true;
}
}
else if (fromNodeJunctionType == JunctionType.ReturnData)
{
if (toNodeJunctionType == JunctionType.ArgData && !fromNode.Guid.Equals(toNode.Guid))
{
// “方法返回值”控制点拖拽到“方法入参”控制点，且不是同一个节点，添加获取参数关系，生成参数时从目标节点获取flowdata
type = JunctionOfConnectionType.Arg;
state = true;
}
}
// 剩下的情况都是不符预期的连接行为，忽略。
return (type, state);
}
}
}

90
NodeFlow/Model/Operation/ChangeParameterOperation.cs Normal file
View File

@@ -0,0 +1,90 @@
using Microsoft.CodeAnalysis;
using Serein.Library.Api;
using Serein.NodeFlow.Services;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.NodeFlow.Model.Operation
{
internal class ChangeParameterOperation : OperationBase
{
public override string Theme => nameof(ChangeParameterOperation);
public string NodeGuid { get; set; }
public bool IsAdd{ get; set; }
public int ParamIndex { get; set; }
private IFlowNode nodeModel;
public override bool ValidationParameter()
{
if (!flowModelService.TryGetNodeModel(NodeGuid, out var nodeModel))
{
return false;
}
this.nodeModel = nodeModel;
var pds = nodeModel.MethodDetails.ParameterDetailss;
var parameterCount = pds.Length;
if (ParamIndex >= parameterCount)
{
return false; // 需要被添加的下标索引大于入参数组的长度
}
if (IsAdd)
{
if (pds[ParamIndex].IsParams == false)
{
return false; // 对应的入参并非可选参数中的一部分
}
}
else
{
}
return true;
}
public override bool Execute()
{
if (!ValidationParameter()) return false;
if (IsAdd)
{
if (nodeModel.MethodDetails.AddParamsArg(ParamIndex))
{
return true;
}
else
{
return false;
}
}
else
{
if (nodeModel.MethodDetails.RemoveParamsArg(ParamIndex))
{
return true;
}
else
{
return true;
}
}
}
public override void ToInfo()
{
throw new NotImplementedException();
}
}
}

98
NodeFlow/Model/Operation/ContainerPlaceNodeOperation.cs Normal file
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@@ -0,0 +1,98 @@
using Serein.Library.Api;
using Serein.NodeFlow.Services;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.NodeFlow.Model.Operation
{
/// <summary>
/// 放置节点操作
/// </summary>
internal class ContainerPlaceNodeOperation : OperationBase
{
public override string Theme => nameof(ContainerPlaceNodeOperation);
/// <summary>
/// 所在画布
/// </summary>
public string CanvasGuid { get; set; }
/// <summary>
/// 子节点，该数据为此次事件的主节点
/// </summary>
public string NodeGuid { get; set; }
/// <summary>
/// 父节点
/// </summary>
public string ContainerNodeGuid { get; set; }
/// <summary>
/// 父节点
/// </summary>
private INodeContainer ContainerNode;
/// <summary>
/// 子节点，该数据为此次事件的主节点
/// </summary>
private IFlowNode Node;
public override bool ValidationParameter()
{
if (!flowModelService.ContainsCanvasModel(CanvasGuid))
{
return false;
}
// 获取目标节点与容器节点
if (!flowModelService.TryGetNodeModel(NodeGuid, out var nodeModel))
{
return false;
}
if (!flowModelService.TryGetNodeModel(ContainerNodeGuid, out var containerNode))
{
return false;
}
if (nodeModel.ContainerNode is INodeContainer tmpContainer)
{
//SereinEnv.WriteLine(InfoType.WARN, $"节点放置失败，节点[{nodeGuid}]已经放置于容器节点[{((IFlowNode)tmpContainer).Guid}]");
return false;
}
if(containerNode is not INodeContainer containerNode2)
{
return false;
}
Node = nodeModel;
ContainerNode = containerNode2;
return true;
}
public override bool Execute()
{
if (!ValidationParameter()) return false;
ContainerNode.PlaceNode(Node);
flowEnvironmentEvent.OnNodePlace(new NodePlaceEventArgs(CanvasGuid, NodeGuid, ContainerNodeGuid)); // 通知UI更改节点放置位置
return true;
}
public override bool Undo()
{
ContainerNode.TakeOutNode(Node);
flowEnvironmentEvent.OnNodeTakeOut(new NodeTakeOutEventArgs(CanvasGuid, NodeGuid)); // 重新放置在画布上
return true;
}
public override void ToInfo()
{
}
}
}

89
NodeFlow/Model/Operation/ContainerTakeOutNodeOperation.cs Normal file
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using Serein.Library.Api;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.NodeFlow.Model.Operation
{
/// <summary>
/// 取出节点操作
/// </summary>
internal class ContainerTakeOutNodeOperation : OperationBase
{
public override string Theme => nameof(ContainerTakeOutNodeOperation);
/// <summary>
/// 所在画布
/// </summary>
public string CanvasGuid { get; set; }
/// <summary>
/// 子节点，该数据为此次事件的主节点
/// </summary>
public string NodeGuid { get; set; }
/// <summary>
/// 父节点
/// </summary>
private INodeContainer ContainerNode;
/// <summary>
/// 子节点，该数据为此次事件的主节点
/// </summary>
private IFlowNode Node;
public override bool ValidationParameter()
{
if (!flowModelService.ContainsCanvasModel(CanvasGuid))
{
flowEnvironment.WriteLine(Library.InfoType.INFO, $"节点取出失败，目标画布不存在[{NodeGuid}]");
return false;
}
// 获取目标节点与容器节点
if (!flowModelService.TryGetNodeModel(NodeGuid, out var nodeModel))
{
flowEnvironment.WriteLine(Library.InfoType.INFO, $"节点取出失败，目标节点不存在[{NodeGuid}]");
return false;
}
if (nodeModel.ContainerNode is not INodeContainer containerNode)
{
flowEnvironment.WriteLine(Library.InfoType.INFO, $"节点取出失败，节点并非容器节点[{nodeModel.Guid}]");
return false;
}
Node = nodeModel;
ContainerNode = containerNode;
return true;
}
public override bool Execute()
{
if (!ValidationParameter()) return false;
ContainerNode.TakeOutNode(Node);
flowEnvironmentEvent.OnNodeTakeOut(new NodeTakeOutEventArgs(CanvasGuid, NodeGuid)); // 重新放置在画布上
return true;
}
public override bool Undo()
{
ContainerNode.PlaceNode(Node);
if (ContainerNode is IFlowNode containerFlowNode)
{
flowEnvironmentEvent.OnNodePlace(new NodePlaceEventArgs(CanvasGuid, NodeGuid, containerFlowNode.Guid)); // 通知UI更改节点放置位置
}
return true;
}
public override void ToInfo()
{
}
}
}

51
NodeFlow/Model/Operation/CreateCanvasOperation.cs Normal file
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using Serein.Library;
using Serein.Library.Api;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.NodeFlow.Model.Operation
{
internal class CreateCanvasOperation : OperationBase
{
public override string Theme => nameof(CreateCanvasOperation);
public override bool IsCanUndo => false;
public required FlowCanvasDetailsInfo CanvasInfo { get; set; }
private FlowCanvasDetails? flowCanvasDetails;
public override bool ValidationParameter()
{
if (CanvasInfo is null)
return false; // 没有必须的参数
if (string.IsNullOrEmpty(CanvasInfo.Guid))
return false; // 不能没有Guid
if(flowModelService.ContainsCanvasModel(CanvasInfo.Guid))
return false; // 画布已存在
return true;
}
public override bool Execute()
{
if(!ValidationParameter()) return false;
var cavasnModel = new FlowCanvasDetails(flowEnvironment);
cavasnModel.LoadInfo(CanvasInfo);
flowModelService.AddCanvasModel(cavasnModel);
this.flowCanvasDetails = cavasnModel; ;
flowEnvironmentEvent.OnCanvasCreated(new CanvasCreateEventArgs(cavasnModel));
return true;
}
public override void ToInfo()
{
throw new NotImplementedException();
}
}
}

145
NodeFlow/Model/Operation/CreateNodeOperation.cs Normal file
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using Serein.Library;
using Serein.Library.Api;
using Serein.NodeFlow.Model.Node;
using Serein.NodeFlow.Services;
using Serein.NodeFlow.Tool;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.NodeFlow.Model.Operation
{
internal class CreateNodeOperation : OperationBase
{
public override string Theme => nameof(CreateNodeOperation);
public required string CanvasGuid { get; set; }
public required NodeControlType NodeControlType { get; set; }
public required PositionOfUI Position { get; set; }
public required MethodDetailsInfo? MethodDetailsInfo { get; set; }
/// <summary>
/// 是否为基础节点
/// </summary>
private bool IsBaseNode => NodeControlType.IsBaseNode();
/// <summary>
/// 执行成功后所创建的节点
/// </summary>
private IFlowNode? flowNode;
/// <summary>
/// 节点所在画布
/// </summary>
private FlowCanvasDetails flowCanvasDetails;
public override bool ValidationParameter()
{
// 检查是否存在画布
var canvasModel = flowModelService.GetCanvasModel(CanvasGuid);
if(canvasModel is null)
return false;
// 检查类型（防非预期的调用）
if (NodeControlType == NodeControlType.None)
return false;
// 检查放置位置是否超限（防非预期的调用）
if (Position.X < 0 || Position.Y < 0
|| Position.X > canvasModel.Width
|| Position.Y > canvasModel.Height)
return false;
// 所创建的节点并非基础节点，却没有传入方法信息，将会导致创建失败
if (!IsBaseNode && MethodDetailsInfo is null)
return false;
// 缓存画布model，提高性能
this.flowCanvasDetails = canvasModel;
return true;
}
public override bool Execute()
{
if (!ValidationParameter()) return false; // 执行时验证
IFlowNode? nodeModel;
if (IsBaseNode)
{
nodeModel = FlowNodeExtension.CreateNode(flowEnvironment, NodeControlType); // 加载基础节点
}
else
{
if(MethodDetailsInfo is null)
{
return false;
//throw new InvalidOperationException($"无法创建节点，因为MethodDetailsInfo属性为null");
}
if (!flowLibraryManagement.TryGetMethodDetails(MethodDetailsInfo.AssemblyName, // 创建节点
MethodDetailsInfo.MethodName,
out var methodDetails))
{
return false;
//throw new InvalidOperationException($"无法创建节点，因为没有找到{MethodDetailsInfo.AssemblyName}.{MethodDetailsInfo.MethodName}方法，请检查是否已加载对应程序集");
}
nodeModel = FlowNodeExtension.CreateNode(flowEnvironment, NodeControlType, methodDetails); // 一般的加载节点方法
}
nodeModel.Guid ??= Guid.NewGuid().ToString();
nodeModel.Position = Position; // 设置位置
// 节点与画布互相绑定
nodeModel.CanvasDetails = flowCanvasDetails;
flowCanvasDetails.Nodes.Add(nodeModel);
flowModelService.AddNodeModel(nodeModel);
this.flowNode = nodeModel;
flowEnvironmentEvent.OnNodeCreated(new NodeCreateEventArgs(flowCanvasDetails.Guid, nodeModel, Position));
return true;
}
public override bool Undo()
{
if (!ValidationParameter()) return false; // 撤销时验证
if(flowNode is null) return false; // 没有创建过节点
var canvasGuid = flowCanvasDetails.Guid;
var nodeGuid = flowNode.Guid;
flowEnvironment.RemoveNode(canvasGuid, nodeGuid);
return true;
}
public override void ToInfo()
{
throw new NotImplementedException();
}
/*private bool TryAddNode(IFlowNode nodeModel)
{
nodeModel.Guid ??= Guid.NewGuid().ToString();
NodeModels.TryAdd(nodeModel.Guid, nodeModel);
// 如果是触发器，则需要添加到专属集合中
if (nodeModel is SingleFlipflopNode flipflopNode)
{
var guid = flipflopNode.Guid;
if (!FlipflopNodes.Exists(it => it.Guid.Equals(guid)))
{
FlipflopNodes.Add(flipflopNode);
}
}
return true;
}*/
}
}

126
NodeFlow/Model/Operation/OperationBase.cs
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@@ -1,92 +1,118 @@
using System;
using Serein.Library;
using Serein.Library.Api;
using Serein.NodeFlow.Services;
using Serein.NodeFlow.Tool;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.NodeFlow.Model.Operation
{
internal interface IOperation
{
/// <summary>
/// 用于判断是否可以撤销
/// </summary>
bool IsCanUndo { get; }
/// <summary>
/// 执行操作前验证数据
/// </summary>
/// <returns></returns>
bool ValidationParameter();
/// <summary>
/// 执行操作
/// </summary>
bool Execute();
/// <summary>
/// 撤销操作
/// </summary>
bool Undo();
}
class Test {
internal abstract class OperationBase : IOperation
{
/// <summary>
/// 运行环境
/// </summary>
[AutoInjection]
protected IFlowEnvironment flowEnvironment;
/// <summary>
/// 撤销栈
/// 节点管理服务
/// </summary>
private Stack<IOperation> undoStack = [];
[AutoInjection]
protected FlowModelService flowModelService;
/// <summary>
/// 重做栈
/// 流程依赖服务
/// </summary>
private Stack<IOperation> redoStack = [];
[AutoInjection]
protected FlowLibraryManagement flowLibraryManagement;
/// <summary>
/// 流程事件服务
/// </summary>
[AutoInjection]
protected IFlowEnvironmentEvent flowEnvironmentEvent;
public abstract string Theme { get;}
/// <summary>
/// 是否支持特效
/// </summary>
public virtual bool IsCanUndo => true;
/*
// 执行新命令时，将命令推入撤销栈，并清空重做栈
undoStack.Push(operation);
redoStack.Clear();
*/
/// <summary>
/// 验证参数
/// </summary>
/// <returns></returns>
public abstract bool ValidationParameter();
/// <summary>
/// 执行
/// </summary>
public abstract bool Execute();
/// <summary>
/// 撤销
/// </summary>
public void Undo()
public virtual bool Undo()
{
if (undoStack.Count > 0)
if (!IsCanUndo)
{
var command = undoStack.Pop();
command.Undo(); // 执行撤销
redoStack.Push(command); // 将撤销的命令推入重做栈
Debug.WriteLine($"该操作暂未提供撤销功能[{Theme}]");
return false;
}
return true;
}
/// <summary>
/// 重做
/// 导出操作信息
/// </summary>
public void Redo()
{
if (redoStack.Count > 0)
{
var command = redoStack.Pop();
command.Execute();
undoStack.Push(command); // 将重做的命令推入撤销栈
}
}
public abstract void ToInfo();
}
internal class OperationInfo
{
}
internal abstract class OperationBase : IOperation
{
/// <summary>
/// 操作的主题
/// </summary>
public required string Theme { get; set; }
public abstract void Execute();
public abstract void Undo();
public abstract void ToInfo();
class Test {
protected OperationBase()
{
}
protected OperationBase(OperationInfo info)
{
}
}
internal interface IOperation
{
void Execute(); // 执行操作
void Undo(); // 撤销操作
}
}

59
NodeFlow/Model/Operation/RemoveCanvasOperation.cs Normal file
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using Serein.Library;
using Serein.Library.Api;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.NodeFlow.Model.Operation
{
internal class RemoveCanvasOperation : OperationBase
{
public override string Theme => nameof(RemoveCanvasOperation);
public override bool IsCanUndo => false;
public required string CanvasGuid { get; set; }
private FlowCanvasDetailsInfo? flowCanvasDetailsInfo;
private FlowCanvasDetails? flowCanvasDetails;
public override bool ValidationParameter()
{
var canvasModel = flowModelService.GetCanvasModel(CanvasGuid);
if (canvasModel is null) return false; // 画布不存在
var nodeCount = canvasModel.Nodes.Count;
if (nodeCount > 0)
{
SereinEnv.WriteLine(InfoType.WARN, "无法删除具有节点的画布");
return false;
}
this.flowCanvasDetails = canvasModel;
return true;
}
public override bool Execute()
{
if (!ValidationParameter()) return false;
if (flowCanvasDetails is null)
{
// 验证过画布存在，但这时画布不存在了
// 考虑到多线程操作影响，一般不会进入这个逻辑分支
var canvasModel = flowModelService.GetCanvasModel(CanvasGuid);
if (canvasModel is null) return false; // 画布不存在
flowCanvasDetails = canvasModel;
}
flowModelService.RemoveCanvasModel(flowCanvasDetails);
flowCanvasDetailsInfo = flowCanvasDetails.ToInfo();
flowEnvironmentEvent.OnCanvasRemoved(new CanvasRemoveEventArgs(flowCanvasDetails.Guid));
return true;
}
public override void ToInfo()
{
throw new NotImplementedException();
}
}
}

216
NodeFlow/Model/Operation/RemoveNodeOperation.cs Normal file
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using Microsoft.CodeAnalysis.CSharp.Syntax;
using Serein.Library;
using Serein.Library.Api;
using Serein.Script.Node;
using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Linq;
using System.Reflection.Metadata;
using System.Text;
using System.Threading.Tasks;
namespace Serein.NodeFlow.Model.Operation
{
internal class RemoveNodeOperation : OperationBase
{
public override string Theme => throw new NotImplementedException();
public required string CanvasGuid { get; internal set; }
public required string NodeGuid { get; internal set; }
/// <summary>
/// 节点所在画布
/// </summary>
private FlowCanvasDetails flowCanvasDetails;
/// <summary>
/// 被删除的节点
/// </summary>
private IFlowNode flowNode;
/// <summary>
/// 移除节点时删除连线所触发的事件参数的缓存
/// </summary>
private List<NodeConnectChangeEventArgs> EventArgs { get; } = new List<NodeConnectChangeEventArgs>();
public override bool ValidationParameter()
{
var canvasModel = flowModelService.GetCanvasModel(CanvasGuid);
var nodeModel = flowModelService.GetNodeModel(NodeGuid);
if(canvasModel is null)
{
return false;
}
if(nodeModel is null)
{
return false;
}
flowCanvasDetails = canvasModel;
flowNode = nodeModel;
return true;
}
public override bool Execute()
{
if (!ValidationParameter()) return false;
// 需要移除对应的方法调用、以及参数获取调用
// 还需要记录移除的事件参数，用以撤销恢复
#region 移除方法调用关系
foreach (var item in flowNode.PreviousNodes)
{
var connectionType = item.Key; // 连接类型
var previousNodes = item.Value; // 对应类型的父节点集合
foreach (IFlowNode previousNode in previousNodes)
{
previousNode.SuccessorNodes[connectionType].Remove(flowNode);
var e = new NodeConnectChangeEventArgs(
CanvasGuid, // 画布
previousNode.Guid, // 父节点Guid
flowNode.Guid, // 被移除的节点Guid
JunctionOfConnectionType.Invoke, // 方法调用关系
connectionType, // 对应的连接关系
NodeConnectChangeEventArgs.ConnectChangeType.Remove); // 移除连线
EventArgs.Add(e); // 缓存事件参数
flowEnvironmentEvent.OnNodeConnectChanged(e);
}
}
if (flowNode.ControlType == NodeControlType.FlowCall)
{
// 根据流程接口节点目前的设计，暂未支持能连接下一个节点
}
else
{
// 遍历所有后继节点，从那些后继节点中的前置节点集合中移除该节点
foreach (var item in flowNode.SuccessorNodes)
{
var connectionType = item.Key; // 方法调用连接类型
var successorNodes = item.Value; // 对应类型的父节点集合
foreach (IFlowNode successorNode in successorNodes)
{
successorNode.SuccessorNodes[connectionType].Remove(flowNode);
var e = new NodeConnectChangeEventArgs(
CanvasGuid, // 画布
flowNode.Guid, // 被移除的节点Guid
successorNode.Guid, // 子节点Guid
JunctionOfConnectionType.Invoke, // 方法调用关系
connectionType, // 对应的连接关系
NodeConnectChangeEventArgs.ConnectChangeType.Remove); // 移除连线
EventArgs.Add(e); // 缓存事件参数
flowEnvironmentEvent.OnNodeConnectChanged(e);
}
}
}
#endregion
#region 移除参数获取关系
// 需要找到有哪些节点的入参参数，被设置为了该节点，然后将其删除
// 因为节点自身没有记录哪些节点选取了自己作为参数来源节点，所以需要遍历所有节点
foreach (var item in flowNode.NeedResultNodes)
{
var connectionType = item.Key; // 参数来源连接类型
var argNodes = item.Value; // 对应类型的入参需求节点集合
foreach (var argNode in argNodes)
{
var md = argNode.MethodDetails;
if (md is null) continue;
var pds = md.ParameterDetailss;
if (pds is null || pds.Length == 0) continue;
foreach(var parameter in pds)
{
if (!parameter.ArgDataSourceNodeGuid.Equals(flowNode.Guid)) continue;
// 找到了对应的入参控制点了
var e = new NodeConnectChangeEventArgs(
CanvasGuid, // 画布
flowNode.Guid, // 被移除的节点Guid
argNode.Guid, // 子节点Guid
parameter.Index, // 作用在第几个参数上，用于指示移除第几个参数的连线
JunctionOfConnectionType.Arg, // 指示移除的是参数连接线
connectionType, // 对应的连接关系
NodeConnectChangeEventArgs.ConnectChangeType.Remove); // 移除连线
EventArgs.Add(e); // 缓存事件参数
flowEnvironmentEvent.OnNodeConnectChanged(e);
}
}
}
#endregion
flowModelService.RemoveNodeModel(flowNode); // 从记录中移除
//flowNode.Remove(); // 调用节点的移除方法
if(flowEnvironment.UIContextOperation is null)
{
flowCanvasDetails?.Nodes.Remove(flowNode);
}
else
{
// 存在UI上下文操作，当前运行环境极有可能运行在有UI线程的平台上
// 为了避免直接修改 ObservableCollection 集合导致异常产生，故而使用UI线程上下文操作运行
flowEnvironment.UIContextOperation?.Invoke(() =>
{
flowCanvasDetails?.Nodes.Remove(flowNode);
});
}
flowEnvironmentEvent.OnNodeRemoved(new NodeRemoveEventArgs(CanvasGuid, NodeGuid));
return true;
}
public override bool Undo()
{
// 先恢复被删除的节点
// 撤销删除节点时，还需要恢复连线状态
foreach (NodeConnectChangeEventArgs e in EventArgs)
{
NodeConnectChangeEventArgs? newEventArgs = null;
if (e.JunctionOfConnectionType == JunctionOfConnectionType.Invoke)
{
newEventArgs = new NodeConnectChangeEventArgs(
e.CanvasGuid, // 画布
e.FromNodeGuid, // 被移除的节点Guid
e.ToNodeGuid, // 子节点Guid
e.JunctionOfConnectionType, // 指示需要恢复的是方法调用线
e.ConnectionInvokeType, // 对应的连接关系
NodeConnectChangeEventArgs.ConnectChangeType.Create); // 创建连线
}
else if (e.JunctionOfConnectionType == JunctionOfConnectionType.Arg)
{
newEventArgs = new NodeConnectChangeEventArgs(
e.CanvasGuid, // 画布
e.FromNodeGuid, // 被移除的节点Guid
e.ToNodeGuid, // 子节点Guid
e.ArgIndex, // 作用在第几个参数上，用于指示移除第几个参数的连线
e.JunctionOfConnectionType, // 指示需要恢复的是参数连接线
e.ConnectionArgSourceType, // 对应的连接关系
NodeConnectChangeEventArgs.ConnectChangeType.Create); // 创建连线
}
else
{
newEventArgs = null;
}
if (newEventArgs != null)
{
// 使用反转了的事件参数进行触发
flowEnvironmentEvent.OnNodeConnectChanged(newEventArgs);
}
}
return true;
}
public override void ToInfo()
{
throw new NotImplementedException();
}
}
}

91
NodeFlow/Model/Operation/SetConnectPriorityInvokeOperation.cs Normal file
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using Serein.Library;
using Serein.Library.Api;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.NodeFlow.Model.Operation
{
/// <summary>
/// 将调用顺序置为优先
/// </summary>
internal class SetConnectPriorityInvokeOperation : OperationBase
{
public override string Theme => nameof(SetConnectPriorityInvokeOperation);
public string FromNodeGuid { get; set; }
public string ToNodeGuid { get; set; }
public ConnectionInvokeType ConnectionType { get; set; }
private IFlowNode FromNode;
private IFlowNode ToNode;
private int lastIdx = -1;
public override bool ValidationParameter()
{
if (ConnectionType == ConnectionInvokeType.None)
{
return false;
}
// 获取起始节点与目标节点
if (!flowModelService.TryGetNodeModel(FromNodeGuid, out var fromNode) || !flowModelService.TryGetNodeModel(ToNodeGuid, out var toNode))
{
return false;
}
if (fromNode is null || toNode is null) return false;
FromNode = fromNode;
ToNode = toNode;
return true;
}
/// <summary>
/// 成为首项
/// </summary>
public override bool Execute()
{
if(!ValidationParameter()) return false;
if (FromNode.SuccessorNodes.TryGetValue(ConnectionType, out var nodes))
{
var idx = nodes.IndexOf(ToNode);
if (idx > -1)
{
lastIdx = idx;
nodes.RemoveAt(idx);
nodes.Insert(0, ToNode);
}
}
return true;
}
/// <summary>
/// 恢复原来的位置
/// </summary>
public override bool Undo()
{
if (FromNode.SuccessorNodes.TryGetValue(ConnectionType, out var nodes))
{
var idx = nodes.IndexOf(ToNode);
if (idx > -1)
{
nodes.RemoveAt(idx);
nodes.Insert(lastIdx, ToNode);
lastIdx = 0;
}
}
return true;
}
public override void ToInfo()
{
throw new NotImplementedException();
}
}
}

78
NodeFlow/Model/Operation/SetStartNodeOperation.cs Normal file
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using Serein.Library;
using Serein.Library.Api;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Serein.NodeFlow.Model.Operation
{
/// <summary>
/// 设置起始节点
/// </summary>
internal class SetStartNodeOperation : OperationBase
{
public override string Theme => nameof(SetStartNodeOperation);
public string CanvasGuid { get; set; }
public string NewNodeGuid { get; set; }
private FlowCanvasDetails CanvasModel;
private IFlowNode NewStartNodeModel;
private IFlowNode? OldStartNodeModel;
public override bool ValidationParameter()
{
if (!flowModelService.TryGetCanvasModel(CanvasGuid, out CanvasModel)
|| !flowModelService.TryGetNodeModel(NewNodeGuid, out NewStartNodeModel))
{
return false;
}
return true;
}
public override bool Execute()
{
if (!ValidationParameter()) return false;
if (CanvasModel.StartNode is not null
&& flowModelService.TryGetNodeModel(CanvasModel.StartNode.Guid, out var flowNode))
{
OldStartNodeModel = flowNode;
}
CanvasModel.StartNode = NewStartNodeModel;
flowEnvironmentEvent.OnStartNodeChanged(new StartNodeChangeEventArgs(CanvasModel.Guid, OldStartNodeModel?.Guid, NewStartNodeModel.Guid));
return true;
}
public override bool Undo()
{
if(OldStartNodeModel is null)
{
return false;
}
var newStartNode = OldStartNodeModel;
var oldStartNode = NewStartNodeModel;
NewStartNodeModel = newStartNode;
OldStartNodeModel = oldStartNode;
CanvasModel.StartNode = oldStartNode;
flowEnvironmentEvent.OnStartNodeChanged(new StartNodeChangeEventArgs(CanvasModel.Guid, oldStartNode?.Guid, newStartNode.Guid));
return true;
}
public override void ToInfo()
{
throw new NotImplementedException();
}
}
}