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rh-vue3-snakerflow-designer

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情怀!N年前使用的工作流引擎,虽然原作者已经不再维护,但是还是有那么一波人还在使用。个人看来其核心功能尚好,麻雀虽少,五脏俱全,是用来学习工作流引擎的好项目。但其流程设计器所用的技术栈可能就跟不上时代了(2016年前的开源项目)。为了让大伙或自己用得更舒心,或者也为了让更多人认识或重新认识这个工作流引擎。本人就花些许时间,使用现阶段前端主流的技术栈重新开发此款流程设计器。如大家在使用的过程中如有啥问题,欢迎留言或进群交流!

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import { GraphModel, h, NodeConfig, RectNode, RectNodeModel } from '@logicflow/core' import { nodeStyleHandle } from '../tool' class TaskModel extends RectNodeModel { static extendKey = 'TaskModel'; constructor (data: NodeConfig, graphModel: GraphModel) { super(data, graphModel) if (data.properties) { this.width = (data.properties.width ? data.properties.width : 120) as number this.height = (data.properties.height ? data.properties.height : 80) as number } } getNodeStyle ():{ [x: string]: any; width?: number; height?: number; radius?: number; fill?: string; stroke?: string; strokeWidth?: number; } { const style = super.getNodeStyle() style.fill = '#ffffff' style.stroke = '#2e88ff' return nodeStyleHandle(this, style) } } class TaskView extends RectNode { static extendKey = 'TaskNode'; getLabelShape ():h.JSX.Element { const { model } = this.props const { x, y, width, height } = model const style = model.getNodeStyle() console.log(y, height / 2) return h( 'svg', { x: x - width / 2 + 5, y: y - height / 2 + 5, width: 25, height: 25, viewBox: '0 0 1274 1024' }, h('path', { fill: style.stroke, d: 'M655.807326 287.35973m-223.989415 0a218.879 218.879 0 1 0 447.978829 0 218.879 218.879 0 1 0-447.978829 0ZM1039.955839 895.482975c-0.490184-212.177424-172.287821-384.030443-384.148513-384.030443-211.862739 0-383.660376 171.85302-384.15056 384.030443L1039.955839 895.482975z' }) ) } getShape ():h.JSX.Element { const { model } = this.props const { x, y, width, height, radius } = model const style = model.getNodeStyle() // todo: 将basic-shape对外暴露,在这里可以直接用。现在纯手写有点麻烦。 return h('g', {}, [ h('rect', { ...style, x: x - width / 2, y: y - height / 2, rx: radius, ry: radius, width, height }), this.getLabelShape() ]) } } const Task = { type: 'snaker:task', view: TaskView, model: TaskModel } export { TaskView, TaskModel } export default Task