chore(examples): add old api examples
This commit is contained in:
moklick
@@ -0,0 +1,98 @@
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import React, { useState, MouseEvent } from 'react';
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import ReactFlow, {
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removeElements,
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addEdge,
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isNode,
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Background,
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Elements,
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BackgroundVariant,
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FlowElement,
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Node,
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Edge,
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Connection,
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OnLoadParams,
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} from 'react-flow-renderer';
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const onNodeDragStop = (_: MouseEvent, node: Node) => console.log('drag stop', node);
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const onElementClick = (_: MouseEvent, element: FlowElement) => console.log('click', element);
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const initialNodes: Node[] = [
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{ id: '1', type: 'input', data: { label: 'Node 1' }, position: { x: 250, y: 5 }, className: 'light' },
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{ id: '2', data: { label: 'Node 2' }, position: { x: 100, y: 100 }, className: 'light' },
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{ id: '3', data: { label: 'Node 3' }, position: { x: 400, y: 100 }, className: 'light' },
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{ id: '4', data: { label: 'Node 4' }, position: { x: 400, y: 200 }, className: 'light' },
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];
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const initialEdges: Edge[] = [
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{ id: 'e1-2', source: '1', target: '2', animated: true },
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{ id: 'e1-3', source: '1', target: '3' },
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];
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const BasicFlow = () => {
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const [rfInstance, setRfInstance] = useState<OnLoadParams | null>(null);
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const [nodes, setNodes] = useState<Node[]>(initialNodes);
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const [edges, setEdges] = useState<Edge[]>(initialEdges);
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// const onElementsRemove = (elementsToRemove: Elements) => setNodes((els) => removeElements(elementsToRemove, els));
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// const onConnect = (params: Edge | Connection) => setNodes((els) => addEdge(params, els));
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const onLoad = (reactFlowInstance: OnLoadParams) => setRfInstance(reactFlowInstance);
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const updatePos = () => {
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setNodes((nds) => {
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return nds.map((n) => {
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n.position = {
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x: Math.random() * 400,
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y: Math.random() * 400,
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};
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return n;
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});
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});
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};
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const logToObject = () => console.log(rfInstance?.toObject());
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const resetTransform = () => rfInstance?.setTransform({ x: 0, y: 0, zoom: 1 });
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const toggleClassnames = () => {
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setNodes((nds) => {
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return nds.map((n) => {
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n.className = n.className === 'light' ? 'dark' : 'light';
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return n;
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});
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});
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};
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return (
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<ReactFlow
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nodes={nodes}
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edges={edges}
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onLoad={onLoad}
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onElementClick={onElementClick}
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// onElementsRemove={onElementsRemove}
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// onConnect={onConnect}
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onNodeDragStop={onNodeDragStop}
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className="react-flow-basic-example"
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defaultZoom={1.5}
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minZoom={0.2}
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maxZoom={4}
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>
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<Background variant={BackgroundVariant.Lines} />
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<div style={{ position: 'absolute', right: 10, top: 10, zIndex: 4 }}>
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<button onClick={resetTransform} style={{ marginRight: 5 }}>
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reset transform
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</button>
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<button onClick={updatePos} style={{ marginRight: 5 }}>
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change pos
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</button>
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<button onClick={toggleClassnames} style={{ marginRight: 5 }}>
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toggle classnames
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</button>
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<button onClick={logToObject}>toObject</button>
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</div>
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</ReactFlow>
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);
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};
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export default BasicFlow;
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@@ -0,0 +1,19 @@
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import React, { FC } from 'react';
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import { ConnectionLineComponentProps } from 'react-flow-renderer';
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const ConnectionLine: FC<ConnectionLineComponentProps> = ({ sourceX, sourceY, targetX, targetY }) => {
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return (
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<g>
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<path
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fill="none"
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stroke="#222"
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strokeWidth={1.5}
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className="animated"
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d={`M${sourceX},${sourceY} C ${sourceX} ${targetY} ${sourceX} ${targetY} ${targetX},${targetY}`}
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/>
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<circle cx={targetX} cy={targetY} fill="#fff" r={3} stroke="#222" strokeWidth={1.5} />
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</g>
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);
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};
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export default ConnectionLine;
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@@ -0,0 +1,33 @@
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import React, { useState } from 'react';
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import ReactFlow, {
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removeElements,
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addEdge,
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Background,
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BackgroundVariant,
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Elements,
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Connection,
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Edge,
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} from 'react-flow-renderer';
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import ConnectionLine from './ConnectionLine';
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const initialElements: Elements = [{ id: '1', type: 'input', data: { label: 'Node 1' }, position: { x: 250, y: 5 } }];
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const ConnectionLineFlow = () => {
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const [elements, setElements] = useState<Elements>(initialElements);
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const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
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const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
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return (
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<ReactFlow
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elements={elements}
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connectionLineComponent={ConnectionLine}
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onElementsRemove={onElementsRemove}
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onConnect={onConnect}
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>
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<Background variant={BackgroundVariant.Lines} />
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</ReactFlow>
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);
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};
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export default ConnectionLineFlow;
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@@ -0,0 +1,25 @@
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import React, { memo, FC, CSSProperties } from 'react';
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import { Handle, Position, NodeProps, Connection, Edge } from 'react-flow-renderer';
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const targetHandleStyle: CSSProperties = { background: '#555' };
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const sourceHandleStyleA: CSSProperties = { ...targetHandleStyle, top: 10 };
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const sourceHandleStyleB: CSSProperties = { ...targetHandleStyle, bottom: 10, top: 'auto' };
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const onConnect = (params: Connection | Edge) => console.log('handle onConnect', params);
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const ColorSelectorNode: FC<NodeProps> = ({ data, isConnectable }) => {
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return (
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<>
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<Handle type="target" position={Position.Left} style={targetHandleStyle} onConnect={onConnect} />
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<div>
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Custom Color Picker Node: <strong>{data.color}</strong>
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</div>
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<input className="nodrag" type="color" onChange={data.onChange} defaultValue={data.color} />
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<Handle type="source" position={Position.Right} id="a" style={sourceHandleStyleA} isConnectable={isConnectable} />
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<Handle type="source" position={Position.Right} id="b" style={sourceHandleStyleB} isConnectable={isConnectable} />
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</>
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);
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};
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export default memo(ColorSelectorNode);
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@@ -0,0 +1,135 @@
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import React, { useState, useEffect, MouseEvent } from 'react';
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import { ChangeEvent } from 'react';
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import ReactFlow, {
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isEdge,
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removeElements,
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addEdge,
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MiniMap,
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Controls,
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Node,
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FlowElement,
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OnLoadParams,
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Elements,
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Position,
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SnapGrid,
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Connection,
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Edge,
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} from 'react-flow-renderer';
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import ColorSelectorNode from './ColorSelectorNode';
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const onLoad = (reactFlowInstance: OnLoadParams) => console.log('flow loaded:', reactFlowInstance);
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const onNodeDragStop = (_: MouseEvent, node: Node) => console.log('drag stop', node);
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const onElementClick = (_: MouseEvent, element: FlowElement) => console.log('click', element);
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const initBgColor = '#1A192B';
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const connectionLineStyle = { stroke: '#fff' };
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const snapGrid: SnapGrid = [16, 16];
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const nodeTypes = {
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selectorNode: ColorSelectorNode,
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};
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const CustomNodeFlow = () => {
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const [elements, setElements] = useState<Elements>([]);
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const [bgColor, setBgColor] = useState<string>(initBgColor);
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useEffect(() => {
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const onChange = (event: ChangeEvent<HTMLInputElement>) => {
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setElements((els) =>
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els.map((e) => {
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if (isEdge(e) || e.id !== '2') {
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return e;
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}
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const color = event.target.value;
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setBgColor(color);
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return {
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...e,
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data: {
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...e.data,
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color,
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},
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};
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})
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);
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};
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setElements([
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{
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id: '1',
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type: 'input',
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data: { label: 'An input node' },
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position: { x: 0, y: 50 },
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sourcePosition: Position.Right,
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},
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{
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id: '2',
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type: 'selectorNode',
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data: { onChange: onChange, color: initBgColor },
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style: { border: '1px solid #777', padding: 10 },
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position: { x: 250, y: 50 },
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},
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{
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id: '3',
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type: 'output',
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data: { label: 'Output A' },
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position: { x: 550, y: 25 },
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targetPosition: Position.Left,
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},
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{
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id: '4',
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type: 'output',
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data: { label: 'Output B' },
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position: { x: 550, y: 100 },
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targetPosition: Position.Left,
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},
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{ id: 'e1-2', source: '1', target: '2', animated: true, style: { stroke: '#fff' } },
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{ id: 'e2a-3', source: '2', sourceHandle: 'a', target: '3', animated: true, style: { stroke: '#fff' } },
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{ id: 'e2b-4', source: '2', sourceHandle: 'b', target: '4', animated: true, style: { stroke: '#fff' } },
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]);
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}, []);
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const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
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const onConnect = (params: Connection | Edge) =>
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setElements((els) => addEdge({ ...params, animated: true, style: { stroke: '#fff' } }, els));
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return (
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<ReactFlow
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elements={elements}
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onElementClick={onElementClick}
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onElementsRemove={onElementsRemove}
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onConnect={onConnect}
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onNodeDragStop={onNodeDragStop}
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style={{ background: bgColor }}
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onLoad={onLoad}
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nodeTypes={nodeTypes}
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connectionLineStyle={connectionLineStyle}
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snapToGrid={true}
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snapGrid={snapGrid}
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defaultZoom={1.5}
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>
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<MiniMap
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nodeStrokeColor={(n: Node): string => {
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if (n.type === 'input') return '#0041d0';
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if (n.type === 'selectorNode') return bgColor;
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if (n.type === 'output') return '#ff0072';
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return '#eee';
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}}
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nodeColor={(n: Node): string => {
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if (n.type === 'selectorNode') return bgColor;
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return '#fff';
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}}
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/>
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<Controls />
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</ReactFlow>
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);
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};
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export default CustomNodeFlow;
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@@ -0,0 +1,33 @@
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import { memo, FC } from 'react';
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import { Handle, Position, NodeProps, Connection, Edge } from 'react-flow-renderer';
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const onConnect = (params: Connection | Edge) => console.log('handle onConnect', params);
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const labelStyle = {
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display: 'flex',
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alignItems: 'center',
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};
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const dragHandleStyle = {
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display: 'inline-block',
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width: 25,
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height: 25,
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backgroundColor: 'teal',
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marginLeft: 5,
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borderRadius: '50%',
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};
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const ColorSelectorNode: FC<NodeProps> = () => {
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return (
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<>
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<Handle type="target" position={Position.Left} onConnect={onConnect} />
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<div style={labelStyle}>
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Only draggable here → <span className="custom-drag-handle" style={dragHandleStyle} />
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</div>
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<Handle type="source" position={Position.Right} />
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</>
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);
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};
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export default memo(ColorSelectorNode);
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@@ -0,0 +1,21 @@
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import ReactFlow from 'react-flow-renderer';
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import DragHandleNode from './DragHandleNode';
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const nodeTypes = {
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dragHandleNode: DragHandleNode,
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};
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const elements = [
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{
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id: '2',
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type: 'dragHandleNode',
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dragHandle: '.custom-drag-handle',
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style: { border: '1px solid #ddd', padding: '20px 40px' },
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position: { x: 200, y: 200 },
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},
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];
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const DragHandleFlow = () => <ReactFlow elements={elements} nodeTypes={nodeTypes} />;
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export default DragHandleFlow;
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@@ -0,0 +1,25 @@
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import React, { DragEvent } from 'react';
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const onDragStart = (event: DragEvent, nodeType: string) => {
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event.dataTransfer.setData('application/reactflow', nodeType);
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event.dataTransfer.effectAllowed = 'move';
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};
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const Sidebar = () => {
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return (
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<aside>
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<div className="description">You can drag these nodes to the pane on the left.</div>
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<div className="react-flow__node-input" onDragStart={(event: DragEvent) => onDragStart(event, 'input')} draggable>
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Input Node
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</div>
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<div className="react-flow__node-default" onDragStart={(event: DragEvent) => onDragStart(event, 'default')} draggable>
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Default Node
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</div>
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<div className="react-flow__node-output" onDragStart={(event: DragEvent) => onDragStart(event, 'output')} draggable>
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Output Node
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</div>
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</aside>
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);
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};
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export default Sidebar;
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@@ -0,0 +1,37 @@
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.dndflow {
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flex-direction: column;
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display: flex;
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height: 100%;
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}
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.dndflow aside {
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border-right: 1px solid #eee;
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padding: 15px 10px;
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font-size: 12px;
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background: #fcfcfc;
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}
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.dndflow aside > * {
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margin-bottom: 10px;
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cursor: grab;
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}
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.dndflow aside .description {
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margin-bottom: 10px;
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}
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.dndflow .reactflow-wrapper {
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flex-grow: 1;
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height: 100%;
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}
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@media screen and (min-width: 768px) {
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.dndflow {
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flex-direction: row;
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}
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.dndflow aside {
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width: 20%;
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max-width: 180px;
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}
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}
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@@ -0,0 +1,75 @@
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import React, { useState, DragEvent } from 'react';
|
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import ReactFlow, {
|
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ReactFlowProvider,
|
||||
addEdge,
|
||||
removeElements,
|
||||
Controls,
|
||||
OnLoadParams,
|
||||
Elements,
|
||||
Connection,
|
||||
Edge,
|
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ElementId,
|
||||
Node,
|
||||
} from 'react-flow-renderer';
|
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|
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import Sidebar from './Sidebar';
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import './dnd.css';
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||||
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const initialElements = [{ id: '1', type: 'input', data: { label: 'input node' }, position: { x: 250, y: 5 } }];
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|
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const onDragOver = (event: DragEvent) => {
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event.preventDefault();
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event.dataTransfer.dropEffect = 'move';
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};
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let id = 0;
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const getId = (): ElementId => `dndnode_${id++}`;
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const DnDFlow = () => {
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const [reactFlowInstance, setReactFlowInstance] = useState<OnLoadParams>();
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
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const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
|
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const onLoad = (_reactFlowInstance: OnLoadParams) => setReactFlowInstance(_reactFlowInstance);
|
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|
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const onDrop = (event: DragEvent) => {
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event.preventDefault();
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|
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if (reactFlowInstance) {
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const type = event.dataTransfer.getData('application/reactflow');
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const position = reactFlowInstance.project({ x: event.clientX, y: event.clientY - 40 });
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const newNode: Node = {
|
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id: getId(),
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type,
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position,
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||||
data: { label: `${type} node` },
|
||||
};
|
||||
|
||||
setElements((es) => es.concat(newNode));
|
||||
}
|
||||
};
|
||||
|
||||
return (
|
||||
<div className="dndflow">
|
||||
<ReactFlowProvider>
|
||||
<div className="reactflow-wrapper">
|
||||
<ReactFlow
|
||||
elements={elements}
|
||||
onConnect={onConnect}
|
||||
onElementsRemove={onElementsRemove}
|
||||
onLoad={onLoad}
|
||||
onDrop={onDrop}
|
||||
onDragOver={onDragOver}
|
||||
>
|
||||
<Controls />
|
||||
</ReactFlow>
|
||||
</div>
|
||||
<Sidebar />
|
||||
</ReactFlowProvider>
|
||||
</div>
|
||||
);
|
||||
};
|
||||
|
||||
export default DnDFlow;
|
||||
@@ -0,0 +1,54 @@
|
||||
/**
|
||||
* Example for checking the different edge types and source and target positions
|
||||
*/
|
||||
import React, { useState } from 'react';
|
||||
|
||||
import ReactFlow, {
|
||||
removeElements,
|
||||
addEdge,
|
||||
MiniMap,
|
||||
Controls,
|
||||
Background,
|
||||
OnLoadParams,
|
||||
Connection,
|
||||
Edge,
|
||||
Elements,
|
||||
} from 'react-flow-renderer';
|
||||
import { getElements } from './utils';
|
||||
|
||||
const onLoad = (reactFlowInstance: OnLoadParams) => {
|
||||
reactFlowInstance.fitView();
|
||||
console.log(reactFlowInstance.getElements());
|
||||
};
|
||||
|
||||
const initialElements = getElements();
|
||||
|
||||
const multiSelectionKeyCode = ['ShiftLeft', 'ShiftRight'];
|
||||
const deleteKeyCode = ['AltLeft+KeyD', 'Backspace'];
|
||||
|
||||
const EdgeTypesFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
|
||||
return (
|
||||
<ReactFlow
|
||||
elements={elements}
|
||||
onLoad={onLoad}
|
||||
onElementsRemove={onElementsRemove}
|
||||
onConnect={onConnect}
|
||||
minZoom={0.2}
|
||||
zoomOnScroll={false}
|
||||
selectionKeyCode="a+s"
|
||||
multiSelectionKeyCode={multiSelectionKeyCode}
|
||||
deleteKeyCode={deleteKeyCode}
|
||||
zoomActivationKeyCode="z"
|
||||
>
|
||||
<MiniMap />
|
||||
<Controls />
|
||||
<Background />
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
export default EdgeTypesFlow;
|
||||
@@ -0,0 +1,106 @@
|
||||
import { ElementId, Elements, Position } from 'react-flow-renderer';
|
||||
|
||||
const nodeWidth = 80;
|
||||
const nodeGapWidth = nodeWidth * 2;
|
||||
const nodeStyle = { width: nodeWidth, fontSize: 11, color: 'white' };
|
||||
|
||||
const sourceTargetPositions = [
|
||||
{ source: Position.Bottom, target: Position.Top },
|
||||
{ source: Position.Right, target: Position.Left },
|
||||
];
|
||||
const nodeColors = [
|
||||
['#1e9e99', '#4cb3ac', '#6ec9c0', '#8ddfd4'],
|
||||
['#0f4c75', '#1b5d8b', '#276fa1', '#3282b8'],
|
||||
];
|
||||
const edgeTypes = ['default', 'step', 'smoothstep', 'straight'];
|
||||
const offsets = [
|
||||
{
|
||||
x: 0,
|
||||
y: -nodeGapWidth,
|
||||
},
|
||||
{
|
||||
x: nodeGapWidth,
|
||||
y: -nodeGapWidth,
|
||||
},
|
||||
{
|
||||
x: nodeGapWidth,
|
||||
y: 0,
|
||||
},
|
||||
{
|
||||
x: nodeGapWidth,
|
||||
y: nodeGapWidth,
|
||||
},
|
||||
{
|
||||
x: 0,
|
||||
y: nodeGapWidth,
|
||||
},
|
||||
{
|
||||
x: -nodeGapWidth,
|
||||
y: nodeGapWidth,
|
||||
},
|
||||
{
|
||||
x: -nodeGapWidth,
|
||||
y: 0,
|
||||
},
|
||||
{
|
||||
x: -nodeGapWidth,
|
||||
y: -nodeGapWidth,
|
||||
},
|
||||
];
|
||||
|
||||
let id = 0;
|
||||
const getNodeId = (): ElementId => (id++).toString();
|
||||
|
||||
export function getElements(): Elements {
|
||||
const initialElements = [];
|
||||
|
||||
for (let sourceTargetIndex = 0; sourceTargetIndex < sourceTargetPositions.length; sourceTargetIndex++) {
|
||||
const currSourceTargetPos = sourceTargetPositions[sourceTargetIndex];
|
||||
|
||||
for (let edgeTypeIndex = 0; edgeTypeIndex < edgeTypes.length; edgeTypeIndex++) {
|
||||
const currEdgeType = edgeTypes[edgeTypeIndex];
|
||||
|
||||
for (let offsetIndex = 0; offsetIndex < offsets.length; offsetIndex++) {
|
||||
const currOffset = offsets[offsetIndex];
|
||||
|
||||
const style = { ...nodeStyle, background: nodeColors[sourceTargetIndex][edgeTypeIndex] };
|
||||
const sourcePosition = {
|
||||
x: offsetIndex * nodeWidth * 4,
|
||||
y: edgeTypeIndex * 300 + sourceTargetIndex * edgeTypes.length * 300,
|
||||
};
|
||||
const sourceId = getNodeId();
|
||||
const sourceData = { label: `Source ${sourceId}` };
|
||||
const sourceNode = {
|
||||
id: sourceId,
|
||||
style,
|
||||
data: sourceData,
|
||||
position: sourcePosition,
|
||||
sourcePosition: currSourceTargetPos.source,
|
||||
targetPosition: currSourceTargetPos.target,
|
||||
};
|
||||
|
||||
const targetId = getNodeId();
|
||||
const targetData = { label: `Target ${targetId}` };
|
||||
const targetPosition = {
|
||||
x: sourcePosition.x + currOffset.x,
|
||||
y: sourcePosition.y + currOffset.y,
|
||||
};
|
||||
const targetNode = {
|
||||
id: targetId,
|
||||
style,
|
||||
data: targetData,
|
||||
position: targetPosition,
|
||||
sourcePosition: currSourceTargetPos.source,
|
||||
targetPosition: currSourceTargetPos.target,
|
||||
};
|
||||
|
||||
initialElements.push(sourceNode);
|
||||
initialElements.push(targetNode);
|
||||
|
||||
initialElements.push({ id: `${sourceId}-${targetId}`, source: sourceId, target: targetId, type: currEdgeType });
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return initialElements;
|
||||
}
|
||||
@@ -0,0 +1,31 @@
|
||||
import { FC } from 'react';
|
||||
import { EdgeProps, getBezierPath, getMarkerEnd } from 'react-flow-renderer';
|
||||
|
||||
const CustomEdge: FC<EdgeProps> = ({
|
||||
id,
|
||||
sourceX,
|
||||
sourceY,
|
||||
targetX,
|
||||
targetY,
|
||||
sourcePosition,
|
||||
targetPosition,
|
||||
data,
|
||||
arrowHeadType,
|
||||
markerEndId,
|
||||
}) => {
|
||||
const edgePath = getBezierPath({ sourceX, sourceY, sourcePosition, targetX, targetY, targetPosition });
|
||||
const markerEnd = getMarkerEnd(arrowHeadType, markerEndId);
|
||||
|
||||
return (
|
||||
<>
|
||||
<path id={id} className="react-flow__edge-path" d={edgePath} markerEnd={markerEnd} />
|
||||
<text>
|
||||
<textPath href={`#${id}`} style={{ fontSize: '12px' }} startOffset="50%" textAnchor="middle">
|
||||
{data.text}
|
||||
</textPath>
|
||||
</text>
|
||||
</>
|
||||
);
|
||||
};
|
||||
|
||||
export default CustomEdge;
|
||||
@@ -0,0 +1,44 @@
|
||||
import { FC } from 'react';
|
||||
import { EdgeProps, getBezierPath, getMarkerEnd, EdgeText, getEdgeCenter } from 'react-flow-renderer';
|
||||
|
||||
const CustomEdge: FC<EdgeProps> = ({
|
||||
id,
|
||||
sourceX,
|
||||
sourceY,
|
||||
targetX,
|
||||
targetY,
|
||||
sourcePosition,
|
||||
targetPosition,
|
||||
data,
|
||||
arrowHeadType,
|
||||
markerEndId,
|
||||
}) => {
|
||||
const edgePath = getBezierPath({ sourceX, sourceY, sourcePosition, targetX, targetY, targetPosition });
|
||||
const markerEnd = getMarkerEnd(arrowHeadType, markerEndId);
|
||||
const [centerX, centerY] = getEdgeCenter({
|
||||
sourceX,
|
||||
sourceY,
|
||||
targetX,
|
||||
targetY,
|
||||
});
|
||||
|
||||
return (
|
||||
<>
|
||||
<path id={id} className="react-flow__edge-path" d={edgePath} markerEnd={markerEnd} />
|
||||
<EdgeText
|
||||
x={centerX}
|
||||
y={centerY}
|
||||
label={data.text}
|
||||
labelStyle={{ fill: 'white' }}
|
||||
labelShowBg
|
||||
labelBgStyle={{ fill: 'red' }}
|
||||
labelBgPadding={[2, 4]}
|
||||
labelBgBorderRadius={2}
|
||||
onClick={() => console.log(data)}
|
||||
/>
|
||||
;
|
||||
</>
|
||||
);
|
||||
};
|
||||
|
||||
export default CustomEdge;
|
||||
@@ -0,0 +1,115 @@
|
||||
import React, { useState, MouseEvent } from 'react';
|
||||
|
||||
import ReactFlow, {
|
||||
removeElements,
|
||||
addEdge,
|
||||
MiniMap,
|
||||
Controls,
|
||||
Background,
|
||||
OnLoadParams,
|
||||
FlowElement,
|
||||
EdgeTypesType,
|
||||
Elements,
|
||||
Connection,
|
||||
Edge,
|
||||
ArrowHeadType,
|
||||
Node,
|
||||
} from 'react-flow-renderer';
|
||||
|
||||
import CustomEdge from './CustomEdge';
|
||||
import CustomEdge2 from './CustomEdge2';
|
||||
|
||||
const onLoad = (reactFlowInstance: OnLoadParams) => reactFlowInstance.fitView();
|
||||
const onNodeDragStop = (_: MouseEvent, node: Node) => console.log('drag stop', node);
|
||||
const onElementClick = (_: MouseEvent, element: FlowElement) => console.log('click', element);
|
||||
|
||||
const initialElements: Elements = [
|
||||
{ id: '1', type: 'input', data: { label: 'Input 1' }, position: { x: 250, y: 0 } },
|
||||
{ id: '2', data: { label: 'Node 2' }, position: { x: 150, y: 100 } },
|
||||
{ id: '2a', data: { label: 'Node 2a' }, position: { x: 0, y: 180 } },
|
||||
{ id: '3', data: { label: 'Node 3' }, position: { x: 250, y: 200 } },
|
||||
{ id: '4', data: { label: 'Node 4' }, position: { x: 400, y: 300 } },
|
||||
{ id: '3a', data: { label: 'Node 3a' }, position: { x: 150, y: 300 } },
|
||||
{ id: '5', data: { label: 'Node 5' }, position: { x: 250, y: 400 } },
|
||||
{ id: '6', type: 'output', data: { label: 'Output 6' }, position: { x: 50, y: 550 } },
|
||||
{ id: '7', type: 'output', data: { label: 'Output 7' }, position: { x: 250, y: 550 } },
|
||||
{ id: '8', type: 'output', data: { label: 'Output 8' }, position: { x: 525, y: 600 } },
|
||||
{ id: '9', type: 'output', data: { label: 'Output 9' }, position: { x: 675, y: 500 } },
|
||||
{ id: 'e1-2', source: '1', target: '2', label: 'bezier edge (default)', className: 'normal-edge' },
|
||||
{ id: 'e2-2a', source: '2', target: '2a', type: 'smoothstep', label: 'smoothstep edge' },
|
||||
{ id: 'e2-3', source: '2', target: '3', type: 'step', label: 'step edge' },
|
||||
{ id: 'e3-4', source: '3', target: '4', type: 'straight', label: 'straight edge' },
|
||||
{ id: 'e3-3a', source: '3', target: '3a', type: 'straight', label: 'label only edge', style: { stroke: 'none' } },
|
||||
{ id: 'e3-5', source: '4', target: '5', animated: true, label: 'animated styled edge', style: { stroke: 'red' } },
|
||||
{
|
||||
id: 'e5-6',
|
||||
source: '5',
|
||||
target: '6',
|
||||
label: (
|
||||
<>
|
||||
<tspan>i am using</tspan>
|
||||
<tspan dy={10} x={0}>
|
||||
{'<tspan>'}
|
||||
</tspan>
|
||||
</>
|
||||
),
|
||||
labelStyle: { fill: 'red', fontWeight: 700 },
|
||||
arrowHeadType: ArrowHeadType.Arrow,
|
||||
},
|
||||
{
|
||||
id: 'e5-7',
|
||||
source: '5',
|
||||
target: '7',
|
||||
label: 'label with styled bg',
|
||||
labelBgPadding: [8, 4],
|
||||
labelBgBorderRadius: 4,
|
||||
labelBgStyle: { fill: '#FFCC00', color: '#fff', fillOpacity: 0.7 },
|
||||
arrowHeadType: ArrowHeadType.ArrowClosed,
|
||||
},
|
||||
{
|
||||
id: 'e5-8',
|
||||
source: '5',
|
||||
target: '8',
|
||||
type: 'custom',
|
||||
data: { text: 'custom edge' },
|
||||
arrowHeadType: ArrowHeadType.ArrowClosed,
|
||||
},
|
||||
{
|
||||
id: 'e5-9',
|
||||
source: '5',
|
||||
target: '9',
|
||||
type: 'custom2',
|
||||
data: { text: 'custom edge 2' },
|
||||
},
|
||||
];
|
||||
|
||||
const edgeTypes: EdgeTypesType = {
|
||||
custom: CustomEdge,
|
||||
custom2: CustomEdge2,
|
||||
};
|
||||
|
||||
const EdgesFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
|
||||
const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
|
||||
return (
|
||||
<ReactFlow
|
||||
elements={elements}
|
||||
onElementClick={onElementClick}
|
||||
onElementsRemove={onElementsRemove}
|
||||
onConnect={onConnect}
|
||||
onNodeDragStop={onNodeDragStop}
|
||||
onLoad={onLoad}
|
||||
snapToGrid={true}
|
||||
edgeTypes={edgeTypes}
|
||||
>
|
||||
<MiniMap />
|
||||
<Controls />
|
||||
<Background />
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
export default EdgesFlow;
|
||||
@@ -0,0 +1,60 @@
|
||||
import React, { useState, MouseEvent, CSSProperties } from 'react';
|
||||
|
||||
import ReactFlow, {
|
||||
removeElements,
|
||||
addEdge,
|
||||
MiniMap,
|
||||
Controls,
|
||||
Background,
|
||||
OnLoadParams,
|
||||
Elements,
|
||||
ElementId,
|
||||
Node,
|
||||
FlowElement,
|
||||
BackgroundVariant,
|
||||
Connection,
|
||||
Edge,
|
||||
} from 'react-flow-renderer';
|
||||
|
||||
const onLoad = (reactFlowInstance: OnLoadParams) => console.log('flow loaded:', reactFlowInstance);
|
||||
const onElementClick = (_: MouseEvent, element: FlowElement) => console.log('click', element);
|
||||
const onNodeDragStop = (_: MouseEvent, node: Node) => console.log('drag stop', node);
|
||||
|
||||
const buttonStyle: CSSProperties = { position: 'absolute', left: 10, top: 10, zIndex: 4 };
|
||||
|
||||
const EmptyFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>([]);
|
||||
const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
const addRandomNode = () => {
|
||||
const nodeId: ElementId = (elements.length + 1).toString();
|
||||
const newNode: Node = {
|
||||
id: nodeId,
|
||||
data: { label: `Node: ${nodeId}` },
|
||||
position: { x: Math.random() * window.innerWidth, y: Math.random() * window.innerHeight },
|
||||
};
|
||||
setElements((els) => els.concat(newNode));
|
||||
};
|
||||
|
||||
return (
|
||||
<ReactFlow
|
||||
elements={elements}
|
||||
onLoad={onLoad}
|
||||
onElementClick={onElementClick}
|
||||
onElementsRemove={onElementsRemove}
|
||||
onConnect={(p) => onConnect(p)}
|
||||
onNodeDragStop={onNodeDragStop}
|
||||
onlyRenderVisibleElements={false}
|
||||
>
|
||||
<MiniMap />
|
||||
<Controls />
|
||||
<Background variant={BackgroundVariant.Lines} />
|
||||
|
||||
<button type="button" onClick={addRandomNode} style={buttonStyle}>
|
||||
add node
|
||||
</button>
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
export default EmptyFlow;
|
||||
@@ -0,0 +1,53 @@
|
||||
import React, { useState } from 'react';
|
||||
|
||||
import { useEffect } from 'react';
|
||||
import ReactFlow, { addEdge, MiniMap, Controls, Connection, Edge, Elements } from 'react-flow-renderer';
|
||||
|
||||
const initialElements: Elements = [
|
||||
{ id: '1', type: 'input', data: { label: 'Node 1' }, position: { x: 250, y: 5 } },
|
||||
{ id: '2', data: { label: 'Node 2' }, position: { x: 100, y: 100 } },
|
||||
{ id: '3', data: { label: 'Node 3' }, position: { x: 400, y: 100 } },
|
||||
{ id: '4', data: { label: 'Node 4' }, position: { x: 400, y: 200 } },
|
||||
{ id: 'e1-2', source: '1', target: '2' },
|
||||
{ id: 'e1-3', source: '1', target: '3' },
|
||||
{ id: 'e3-4', source: '3', target: '4' },
|
||||
];
|
||||
|
||||
const HiddenFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const [isHidden, setIsHidden] = useState<boolean>(false);
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
|
||||
useEffect(() => {
|
||||
setElements((els) =>
|
||||
els.map((e) => {
|
||||
e.isHidden = isHidden;
|
||||
return e;
|
||||
})
|
||||
);
|
||||
}, [isHidden]);
|
||||
|
||||
return (
|
||||
<ReactFlow elements={elements} onConnect={onConnect}>
|
||||
<MiniMap />
|
||||
<Controls />
|
||||
|
||||
<div style={{ position: 'absolute', left: 10, top: 10, zIndex: 4 }}>
|
||||
<div>
|
||||
<label htmlFor="ishidden">
|
||||
isHidden
|
||||
<input
|
||||
id="ishidden"
|
||||
type="checkbox"
|
||||
checked={isHidden}
|
||||
onChange={(event) => setIsHidden(event.target.checked)}
|
||||
className="react-flow__ishidden"
|
||||
/>
|
||||
</label>
|
||||
</div>
|
||||
</div>
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
export default HiddenFlow;
|
||||
@@ -0,0 +1,226 @@
|
||||
import React, { useState, MouseEvent, WheelEvent } from 'react';
|
||||
import ReactFlow, {
|
||||
addEdge,
|
||||
MiniMap,
|
||||
Controls,
|
||||
Elements,
|
||||
Node,
|
||||
FlowElement,
|
||||
Connection,
|
||||
Edge,
|
||||
PanOnScrollMode,
|
||||
FlowTransform,
|
||||
} from 'react-flow-renderer';
|
||||
|
||||
const initialElements: Elements = [
|
||||
{ id: '1', type: 'input', data: { label: 'Node 1' }, position: { x: 250, y: 5 } },
|
||||
{ id: '2', data: { label: 'Node 2' }, position: { x: 100, y: 100 } },
|
||||
{ id: '3', data: { label: 'Node 3' }, position: { x: 400, y: 100 } },
|
||||
{ id: '4', data: { label: 'Node 4' }, position: { x: 400, y: 200 } },
|
||||
{ id: 'e1-2', source: '1', target: '2', animated: true },
|
||||
{ id: 'e1-3', source: '1', target: '3' },
|
||||
];
|
||||
|
||||
const onNodeDragStart = (_: MouseEvent, node: Node) => console.log('drag start', node);
|
||||
const onNodeDragStop = (_: MouseEvent, node: Node) => console.log('drag stop', node);
|
||||
const onElementClick = (_: MouseEvent, element: FlowElement) => console.log('click', element);
|
||||
const onPaneClick = (event: MouseEvent) => console.log('onPaneClick', event);
|
||||
const onPaneScroll = (event?: WheelEvent) => console.log('onPaneScroll', event);
|
||||
const onPaneContextMenu = (event: MouseEvent) => console.log('onPaneContextMenu', event);
|
||||
const onMoveEnd = (flowTranasform?: FlowTransform) => console.log('onMoveEnd', flowTranasform);
|
||||
|
||||
const InteractionFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
|
||||
const [isSelectable, setIsSelectable] = useState<boolean>(false);
|
||||
const [isDraggable, setIsDraggable] = useState<boolean>(false);
|
||||
const [isConnectable, setIsConnectable] = useState<boolean>(false);
|
||||
const [zoomOnScroll, setZoomOnScroll] = useState<boolean>(false);
|
||||
const [zoomOnPinch, setZoomOnPinch] = useState<boolean>(false);
|
||||
const [panOnScroll, setPanOnScroll] = useState<boolean>(false);
|
||||
const [panOnScrollMode, setPanOnScrollMode] = useState<PanOnScrollMode>(PanOnScrollMode.Free);
|
||||
const [zoomOnDoubleClick, setZoomOnDoubleClick] = useState<boolean>(false);
|
||||
const [paneMoveable, setPaneMoveable] = useState<boolean>(true);
|
||||
const [captureZoomClick, setCaptureZoomClick] = useState<boolean>(false);
|
||||
const [captureZoomScroll, setCaptureZoomScroll] = useState<boolean>(false);
|
||||
const [captureElementClick, setCaptureElementClick] = useState<boolean>(false);
|
||||
|
||||
return (
|
||||
<ReactFlow
|
||||
elements={elements}
|
||||
elementsSelectable={isSelectable}
|
||||
nodesConnectable={isConnectable}
|
||||
nodesDraggable={isDraggable}
|
||||
zoomOnScroll={zoomOnScroll}
|
||||
zoomOnPinch={zoomOnPinch}
|
||||
panOnScroll={panOnScroll}
|
||||
panOnScrollMode={panOnScrollMode}
|
||||
zoomOnDoubleClick={zoomOnDoubleClick}
|
||||
onConnect={onConnect}
|
||||
onElementClick={captureElementClick ? onElementClick : undefined}
|
||||
onNodeDragStart={onNodeDragStart}
|
||||
onNodeDragStop={onNodeDragStop}
|
||||
paneMoveable={paneMoveable}
|
||||
onPaneClick={captureZoomClick ? onPaneClick : undefined}
|
||||
onPaneScroll={captureZoomScroll ? onPaneScroll : undefined}
|
||||
onPaneContextMenu={captureZoomClick ? onPaneContextMenu : undefined}
|
||||
onMoveEnd={onMoveEnd}
|
||||
>
|
||||
<MiniMap />
|
||||
<Controls />
|
||||
|
||||
<div style={{ position: 'absolute', left: 10, top: 10, zIndex: 4 }}>
|
||||
<div>
|
||||
<label htmlFor="draggable">
|
||||
nodesDraggable
|
||||
<input
|
||||
id="draggable"
|
||||
type="checkbox"
|
||||
checked={isDraggable}
|
||||
onChange={(event) => setIsDraggable(event.target.checked)}
|
||||
className="react-flow__draggable"
|
||||
/>
|
||||
</label>
|
||||
</div>
|
||||
<div>
|
||||
<label htmlFor="connectable">
|
||||
nodesConnectable
|
||||
<input
|
||||
id="connectable"
|
||||
type="checkbox"
|
||||
checked={isConnectable}
|
||||
onChange={(event) => setIsConnectable(event.target.checked)}
|
||||
className="react-flow__connectable"
|
||||
/>
|
||||
</label>
|
||||
</div>
|
||||
<div>
|
||||
<label htmlFor="selectable">
|
||||
elementsSelectable
|
||||
<input
|
||||
id="selectable"
|
||||
type="checkbox"
|
||||
checked={isSelectable}
|
||||
onChange={(event) => setIsSelectable(event.target.checked)}
|
||||
className="react-flow__selectable"
|
||||
/>
|
||||
</label>
|
||||
</div>
|
||||
<div>
|
||||
<label htmlFor="zoomonscroll">
|
||||
zoomOnScroll
|
||||
<input
|
||||
id="zoomonscroll"
|
||||
type="checkbox"
|
||||
checked={zoomOnScroll}
|
||||
onChange={(event) => setZoomOnScroll(event.target.checked)}
|
||||
className="react-flow__zoomonscroll"
|
||||
/>
|
||||
</label>
|
||||
</div>
|
||||
<div>
|
||||
<label htmlFor="zoomonpinch">
|
||||
zoomOnPinch
|
||||
<input
|
||||
id="zoomonpinch"
|
||||
type="checkbox"
|
||||
checked={zoomOnPinch}
|
||||
onChange={(event) => setZoomOnPinch(event.target.checked)}
|
||||
className="react-flow__zoomonpinch"
|
||||
/>
|
||||
</label>
|
||||
</div>
|
||||
<div>
|
||||
<label htmlFor="panonscroll">
|
||||
panOnScroll
|
||||
<input
|
||||
id="panonscroll"
|
||||
type="checkbox"
|
||||
checked={panOnScroll}
|
||||
onChange={(event) => setPanOnScroll(event.target.checked)}
|
||||
className="react-flow__panonscroll"
|
||||
/>
|
||||
</label>
|
||||
</div>
|
||||
<div>
|
||||
<label htmlFor="panonscrollmode">
|
||||
panOnScrollMode
|
||||
<select
|
||||
id="panonscrollmode"
|
||||
value={panOnScrollMode}
|
||||
onChange={(event) => setPanOnScrollMode(event.target.value as PanOnScrollMode)}
|
||||
className="react-flow__panonscrollmode"
|
||||
>
|
||||
<option value="free">free</option>
|
||||
<option value="horizontal">horizontal</option>
|
||||
<option value="vertical">vertical</option>
|
||||
</select>
|
||||
</label>
|
||||
</div>
|
||||
<div>
|
||||
<label htmlFor="zoomondbl">
|
||||
zoomOnDoubleClick
|
||||
<input
|
||||
id="zoomondbl"
|
||||
type="checkbox"
|
||||
checked={zoomOnDoubleClick}
|
||||
onChange={(event) => setZoomOnDoubleClick(event.target.checked)}
|
||||
className="react-flow__zoomondbl"
|
||||
/>
|
||||
</label>
|
||||
</div>
|
||||
<div>
|
||||
<label htmlFor="panemoveable">
|
||||
paneMoveable
|
||||
<input
|
||||
id="panemoveable"
|
||||
type="checkbox"
|
||||
checked={paneMoveable}
|
||||
onChange={(event) => setPaneMoveable(event.target.checked)}
|
||||
className="react-flow__panemoveable"
|
||||
/>
|
||||
</label>
|
||||
</div>
|
||||
<div>
|
||||
<label htmlFor="capturezoompaneclick">
|
||||
capture onPaneClick
|
||||
<input
|
||||
id="capturezoompaneclick"
|
||||
type="checkbox"
|
||||
checked={captureZoomClick}
|
||||
onChange={(event) => setCaptureZoomClick(event.target.checked)}
|
||||
className="react-flow__capturezoompaneclick"
|
||||
/>
|
||||
</label>
|
||||
</div>
|
||||
<div>
|
||||
<label htmlFor="capturezoompanescroll">
|
||||
capture onPaneScroll
|
||||
<input
|
||||
id="capturezoompanescroll"
|
||||
type="checkbox"
|
||||
checked={captureZoomScroll}
|
||||
onChange={(event) => setCaptureZoomScroll(event.target.checked)}
|
||||
className="react-flow__capturezoompanescroll"
|
||||
/>
|
||||
</label>
|
||||
</div>
|
||||
<div>
|
||||
<label htmlFor="captureelementclick">
|
||||
capture onElementClick
|
||||
<input
|
||||
id="captureelementclick"
|
||||
type="checkbox"
|
||||
checked={captureElementClick}
|
||||
onChange={(event) => setCaptureElementClick(event.target.checked)}
|
||||
className="react-flow__captureelementclick"
|
||||
/>
|
||||
</label>
|
||||
</div>
|
||||
</div>
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
export default InteractionFlow;
|
||||
@@ -0,0 +1,86 @@
|
||||
import React, { useState } from 'react';
|
||||
import ReactFlow, {
|
||||
ReactFlowProvider,
|
||||
addEdge,
|
||||
removeElements,
|
||||
Controls,
|
||||
isNode,
|
||||
Elements,
|
||||
Connection,
|
||||
Edge,
|
||||
NodeExtent,
|
||||
Position,
|
||||
} from 'react-flow-renderer';
|
||||
import dagre from 'dagre';
|
||||
|
||||
import initialElements from './initial-elements';
|
||||
|
||||
import './layouting.css';
|
||||
|
||||
const dagreGraph = new dagre.graphlib.Graph();
|
||||
dagreGraph.setDefaultEdgeLabel(() => ({}));
|
||||
|
||||
const nodeExtent: NodeExtent = [
|
||||
[0, 0],
|
||||
[1000, 1000],
|
||||
];
|
||||
|
||||
const LayoutFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
|
||||
|
||||
const onLayout = (direction: string) => {
|
||||
const isHorizontal = direction === 'LR';
|
||||
dagreGraph.setGraph({ rankdir: direction });
|
||||
|
||||
elements.forEach((el) => {
|
||||
if (isNode(el)) {
|
||||
dagreGraph.setNode(el.id, { width: 150, height: 50 });
|
||||
} else {
|
||||
dagreGraph.setEdge(el.source, el.target);
|
||||
}
|
||||
});
|
||||
|
||||
dagre.layout(dagreGraph);
|
||||
|
||||
const layoutedElements = elements.map((el) => {
|
||||
if (isNode(el)) {
|
||||
const nodeWithPosition = dagreGraph.node(el.id);
|
||||
el.targetPosition = isHorizontal ? Position.Left : Position.Top;
|
||||
el.sourcePosition = isHorizontal ? Position.Right : Position.Bottom;
|
||||
// we need to pass a slightly different position in order to notify react flow about the change
|
||||
// @TODO how can we change the position handling so that we dont need this hack?
|
||||
el.position = { x: nodeWithPosition.x + Math.random() / 1000, y: nodeWithPosition.y };
|
||||
}
|
||||
|
||||
return el;
|
||||
});
|
||||
|
||||
setElements(layoutedElements);
|
||||
};
|
||||
|
||||
return (
|
||||
<div className="layoutflow">
|
||||
<ReactFlowProvider>
|
||||
<ReactFlow
|
||||
elements={elements}
|
||||
onConnect={onConnect}
|
||||
onElementsRemove={onElementsRemove}
|
||||
nodeExtent={nodeExtent}
|
||||
onLoad={() => onLayout('TB')}
|
||||
>
|
||||
<Controls />
|
||||
</ReactFlow>
|
||||
<div className="controls">
|
||||
<button onClick={() => onLayout('TB')} style={{ marginRight: 10 }}>
|
||||
vertical layout
|
||||
</button>
|
||||
<button onClick={() => onLayout('LR')}>horizontal layout</button>
|
||||
</div>
|
||||
</ReactFlowProvider>
|
||||
</div>
|
||||
);
|
||||
};
|
||||
|
||||
export default LayoutFlow;
|
||||
@@ -0,0 +1,71 @@
|
||||
import { Elements, XYPosition } from 'react-flow-renderer';
|
||||
|
||||
const position: XYPosition = { x: 0, y: 0 };
|
||||
|
||||
const elements: Elements = [
|
||||
{
|
||||
id: '1',
|
||||
type: 'input',
|
||||
data: { label: 'input' },
|
||||
position,
|
||||
},
|
||||
{
|
||||
id: '2',
|
||||
data: { label: 'node 2' },
|
||||
position,
|
||||
},
|
||||
{
|
||||
id: '2a',
|
||||
data: { label: 'node 2a' },
|
||||
position,
|
||||
},
|
||||
{
|
||||
id: '2b',
|
||||
data: { label: 'node 2b' },
|
||||
position,
|
||||
},
|
||||
{
|
||||
id: '2c',
|
||||
data: { label: 'node 2c' },
|
||||
position,
|
||||
},
|
||||
{
|
||||
id: '2d',
|
||||
data: { label: 'node 2d' },
|
||||
position,
|
||||
},
|
||||
{
|
||||
id: '3',
|
||||
data: { label: 'node 3' },
|
||||
position,
|
||||
},
|
||||
{
|
||||
id: '4',
|
||||
data: { label: 'node 4' },
|
||||
position,
|
||||
},
|
||||
{
|
||||
id: '5',
|
||||
data: { label: 'node 5' },
|
||||
position,
|
||||
},
|
||||
{
|
||||
id: '6',
|
||||
type: 'output',
|
||||
data: { label: 'output' },
|
||||
position,
|
||||
},
|
||||
{ id: '7', type: 'output', data: { label: 'output' }, position: { x: 400, y: 450 } },
|
||||
{ id: 'e12', source: '1', target: '2', type: 'smoothstep' },
|
||||
{ id: 'e13', source: '1', target: '3', type: 'smoothstep' },
|
||||
{ id: 'e22a', source: '2', target: '2a', type: 'smoothstep' },
|
||||
{ id: 'e22b', source: '2', target: '2b', type: 'smoothstep' },
|
||||
{ id: 'e22c', source: '2', target: '2c', type: 'smoothstep' },
|
||||
{ id: 'e2c2d', source: '2c', target: '2d', type: 'smoothstep' },
|
||||
|
||||
{ id: 'e45', source: '4', target: '5', type: 'smoothstep' },
|
||||
{ id: 'e56', source: '5', target: '6', type: 'smoothstep' },
|
||||
{ id: 'e57', source: '5', target: '7', type: 'smoothstep' },
|
||||
];
|
||||
|
||||
export default elements;
|
||||
@@ -0,0 +1,11 @@
|
||||
.layoutflow {
|
||||
flex-grow: 1;
|
||||
position: relative;
|
||||
}
|
||||
|
||||
.layoutflow .controls {
|
||||
position: absolute;
|
||||
right: 10px;
|
||||
top: 10px;
|
||||
z-index: 10;
|
||||
}
|
||||
@@ -0,0 +1,45 @@
|
||||
import React, { useState, FC } from 'react';
|
||||
|
||||
import ReactFlow, {
|
||||
removeElements,
|
||||
addEdge,
|
||||
Background,
|
||||
Elements,
|
||||
Edge,
|
||||
Connection,
|
||||
ReactFlowProvider,
|
||||
} from 'react-flow-renderer';
|
||||
|
||||
import './multiflows.css';
|
||||
|
||||
const initialElements: Elements = [
|
||||
{ id: '1', type: 'input', data: { label: 'Node 1' }, position: { x: 250, y: 5 }, className: 'light' },
|
||||
{ id: '2', data: { label: 'Node 2' }, position: { x: 100, y: 100 }, className: 'light' },
|
||||
{ id: '3', data: { label: 'Node 3' }, position: { x: 400, y: 100 }, className: 'light' },
|
||||
{ id: '4', data: { label: 'Node 4' }, position: { x: 400, y: 200 }, className: 'light' },
|
||||
{ id: 'e1-2', source: '1', target: '2', animated: true },
|
||||
{ id: 'e1-3', source: '1', target: '3' },
|
||||
];
|
||||
|
||||
const Flow: FC = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
|
||||
const onConnect = (params: Edge | Connection) => setElements((els) => addEdge(params, els));
|
||||
|
||||
return (
|
||||
<ReactFlowProvider>
|
||||
<ReactFlow elements={elements} onElementsRemove={onElementsRemove} onConnect={onConnect}>
|
||||
<Background />
|
||||
</ReactFlow>
|
||||
</ReactFlowProvider>
|
||||
);
|
||||
};
|
||||
|
||||
const MultiFlows: FC = () => (
|
||||
<div className="react-flow__example-multiflows">
|
||||
<Flow />
|
||||
<Flow />
|
||||
</div>
|
||||
);
|
||||
|
||||
export default MultiFlows;
|
||||
@@ -0,0 +1,13 @@
|
||||
.react-flow__example-multiflows {
|
||||
display: flex;
|
||||
height: 100%;
|
||||
}
|
||||
|
||||
.react-flow__example-multiflows .react-flow {
|
||||
width: 100%;
|
||||
height: 100%;
|
||||
}
|
||||
|
||||
.react-flow__example-multiflows .react-flow:first-child {
|
||||
border-right: 2px solid #333;
|
||||
}
|
||||
@@ -0,0 +1,55 @@
|
||||
import React, { useState, CSSProperties } from 'react';
|
||||
|
||||
import ReactFlow, { addEdge, isEdge, OnLoadParams, Elements, Position, Connection, Edge } from 'react-flow-renderer';
|
||||
|
||||
const onLoad = (reactFlowInstance: OnLoadParams) => reactFlowInstance.fitView();
|
||||
|
||||
const initialElements: Elements = [
|
||||
{
|
||||
id: '1',
|
||||
sourcePosition: Position.Right,
|
||||
type: 'input',
|
||||
data: { label: 'Input' },
|
||||
position: { x: 0, y: 80 },
|
||||
},
|
||||
{
|
||||
id: '2',
|
||||
type: 'output',
|
||||
sourcePosition: Position.Right,
|
||||
targetPosition: Position.Left,
|
||||
data: { label: 'A Node' },
|
||||
position: { x: 250, y: 0 },
|
||||
},
|
||||
{ id: 'e1-2', source: '1', type: 'smoothstep', target: '2', animated: true },
|
||||
];
|
||||
|
||||
const buttonStyle: CSSProperties = { position: 'absolute', right: 10, top: 30, zIndex: 4 };
|
||||
|
||||
const NodeTypeChangeFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
const changeType = () => {
|
||||
setElements((elms) =>
|
||||
elms.map((el) => {
|
||||
if (isEdge(el) || el.type === 'input') {
|
||||
return el;
|
||||
}
|
||||
|
||||
return {
|
||||
...el,
|
||||
type: el.type === 'default' ? 'output' : 'default',
|
||||
};
|
||||
})
|
||||
);
|
||||
};
|
||||
|
||||
return (
|
||||
<ReactFlow elements={elements} onConnect={onConnect} onLoad={onLoad}>
|
||||
<button onClick={changeType} style={buttonStyle}>
|
||||
change type
|
||||
</button>
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
export default NodeTypeChangeFlow;
|
||||
@@ -0,0 +1,76 @@
|
||||
import React, { useState, CSSProperties, FC } from 'react';
|
||||
|
||||
import ReactFlow, {
|
||||
addEdge,
|
||||
Elements,
|
||||
Position,
|
||||
Connection,
|
||||
Edge,
|
||||
NodeProps,
|
||||
NodeTypesType,
|
||||
} from 'react-flow-renderer';
|
||||
|
||||
const initialElements: Elements = [
|
||||
{
|
||||
id: '1',
|
||||
sourcePosition: Position.Right,
|
||||
type: 'input',
|
||||
data: { label: 'Input' },
|
||||
position: { x: 0, y: 80 },
|
||||
},
|
||||
{
|
||||
id: '2',
|
||||
type: 'a',
|
||||
sourcePosition: Position.Right,
|
||||
targetPosition: Position.Left,
|
||||
data: { label: 'A Node' },
|
||||
position: { x: 250, y: 0 },
|
||||
},
|
||||
];
|
||||
|
||||
const buttonStyle: CSSProperties = { position: 'absolute', right: 10, top: 30, zIndex: 4 };
|
||||
|
||||
const nodeStyles: CSSProperties = { padding: '10px 15px', border: '1px solid #ddd' };
|
||||
|
||||
const NodeA: FC<NodeProps> = () => {
|
||||
return <div style={nodeStyles}>A</div>;
|
||||
};
|
||||
|
||||
const NodeB: FC<NodeProps> = () => {
|
||||
return <div style={nodeStyles}>B</div>;
|
||||
};
|
||||
|
||||
type NodeTypesObject = {
|
||||
[key: string]: NodeTypesType;
|
||||
};
|
||||
|
||||
const nodeTypesObjects: NodeTypesObject = {
|
||||
a: {
|
||||
a: NodeA,
|
||||
},
|
||||
b: {
|
||||
b: NodeB,
|
||||
},
|
||||
};
|
||||
|
||||
const NodeTypeChangeFlow = () => {
|
||||
const [nodeTypesId, setNodeTypesId] = useState<string>('a');
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
const changeType = () => setNodeTypesId((nt) => (nt === 'a' ? 'b' : 'a'));
|
||||
|
||||
return (
|
||||
<ReactFlow
|
||||
elements={elements}
|
||||
onConnect={onConnect}
|
||||
nodeTypes={nodeTypesObjects[nodeTypesId]}
|
||||
nodeTypesId={nodeTypesId}
|
||||
>
|
||||
<button onClick={changeType} style={buttonStyle}>
|
||||
change type
|
||||
</button>
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
export default NodeTypeChangeFlow;
|
||||
@@ -0,0 +1,202 @@
|
||||
import React, { useState, MouseEvent, CSSProperties } from 'react';
|
||||
|
||||
import ReactFlow, {
|
||||
removeElements,
|
||||
addEdge,
|
||||
MiniMap,
|
||||
Controls,
|
||||
Background,
|
||||
isNode,
|
||||
Node,
|
||||
Elements,
|
||||
FlowElement,
|
||||
OnLoadParams,
|
||||
FlowTransform,
|
||||
SnapGrid,
|
||||
ArrowHeadType,
|
||||
Connection,
|
||||
Edge,
|
||||
} from 'react-flow-renderer';
|
||||
|
||||
const onNodeDragStart = (_: MouseEvent, node: Node) => console.log('drag start', node);
|
||||
const onNodeDrag = (_: MouseEvent, node: Node) => console.log('drag', node);
|
||||
const onNodeDragStop = (_: MouseEvent, node: Node) => console.log('drag stop', node);
|
||||
const onNodeDoubleClick = (_: MouseEvent, node: Node) => console.log('node double click', node);
|
||||
const onPaneClick = (event: MouseEvent) => console.log('pane click', event);
|
||||
const onPaneScroll = (event?: MouseEvent) => console.log('pane scroll', event);
|
||||
const onPaneContextMenu = (event: MouseEvent) => console.log('pane context menu', event);
|
||||
const onSelectionDrag = (_: MouseEvent, nodes: Node[]) => console.log('selection drag', nodes);
|
||||
const onSelectionDragStart = (_: MouseEvent, nodes: Node[]) => console.log('selection drag start', nodes);
|
||||
const onSelectionDragStop = (_: MouseEvent, nodes: Node[]) => console.log('selection drag stop', nodes);
|
||||
const onSelectionContextMenu = (event: MouseEvent, nodes: Node[]) => {
|
||||
event.preventDefault();
|
||||
console.log('selection context menu', nodes);
|
||||
};
|
||||
const onElementClick = (_: MouseEvent, element: FlowElement) =>
|
||||
console.log(`${isNode(element) ? 'node' : 'edge'} click:`, element);
|
||||
const onSelectionChange = (elements: Elements | null) => console.log('selection change', elements);
|
||||
const onLoad = (reactFlowInstance: OnLoadParams) => {
|
||||
console.log('flow loaded:', reactFlowInstance);
|
||||
reactFlowInstance.fitView();
|
||||
};
|
||||
|
||||
const onMoveStart = (transform?: FlowTransform) => console.log('zoom/move start', transform);
|
||||
const onMoveEnd = (transform?: FlowTransform) => console.log('zoom/move end', transform);
|
||||
const onEdgeContextMenu = (_: MouseEvent, edge: Edge) => console.log('edge context menu', edge);
|
||||
const onEdgeMouseEnter = (_: MouseEvent, edge: Edge) => console.log('edge mouse enter', edge);
|
||||
const onEdgeMouseMove = (_: MouseEvent, edge: Edge) => console.log('edge mouse move', edge);
|
||||
const onEdgeMouseLeave = (_: MouseEvent, edge: Edge) => console.log('edge mouse leave', edge);
|
||||
const onEdgeDoubleClick = (_: MouseEvent, edge: Edge) => console.log('edge double click', edge);
|
||||
|
||||
const initialElements: Elements = [
|
||||
{
|
||||
id: '1',
|
||||
type: 'input',
|
||||
data: {
|
||||
label: (
|
||||
<>
|
||||
Welcome to <strong>React Flow!</strong>
|
||||
</>
|
||||
),
|
||||
},
|
||||
position: { x: 250, y: 0 },
|
||||
},
|
||||
{
|
||||
id: '2',
|
||||
data: {
|
||||
label: (
|
||||
<>
|
||||
This is a <strong>default node</strong>
|
||||
</>
|
||||
),
|
||||
},
|
||||
position: { x: 100, y: 100 },
|
||||
},
|
||||
{
|
||||
id: '3',
|
||||
data: {
|
||||
label: (
|
||||
<>
|
||||
This one has a <strong>custom style</strong>
|
||||
</>
|
||||
),
|
||||
},
|
||||
position: { x: 400, y: 100 },
|
||||
style: { background: '#D6D5E6', color: '#333', border: '1px solid #222138', width: 180 },
|
||||
},
|
||||
{
|
||||
id: '4',
|
||||
position: { x: 250, y: 200 },
|
||||
data: {
|
||||
label: (
|
||||
<>
|
||||
You can find the docs on{' '}
|
||||
<a href="https://github.com/wbkd/react-flow" target="_blank" rel="noopener noreferrer">
|
||||
Github
|
||||
</a>
|
||||
</>
|
||||
),
|
||||
},
|
||||
},
|
||||
{
|
||||
id: '5',
|
||||
data: {
|
||||
label: (
|
||||
<>
|
||||
Or check out the other <strong>examples</strong>
|
||||
</>
|
||||
),
|
||||
},
|
||||
position: { x: 250, y: 325 },
|
||||
},
|
||||
{
|
||||
id: '6',
|
||||
type: 'output',
|
||||
data: {
|
||||
label: (
|
||||
<>
|
||||
An <strong>output node</strong>
|
||||
</>
|
||||
),
|
||||
},
|
||||
position: { x: 100, y: 480 },
|
||||
},
|
||||
{ id: '7', type: 'output', data: { label: 'Another output node' }, position: { x: 400, y: 450 } },
|
||||
{ id: 'e1-2', source: '1', target: '2', label: 'this is an edge label' },
|
||||
{ id: 'e1-3', source: '1', target: '3' },
|
||||
{ id: 'e3-4', source: '3', target: '4', animated: true, label: 'animated edge' },
|
||||
{ id: 'e4-5', source: '4', target: '5', arrowHeadType: ArrowHeadType.Arrow, label: 'edge with arrow head' },
|
||||
{ id: 'e5-6', source: '5', target: '6', type: 'smoothstep', label: 'smooth step edge' },
|
||||
{
|
||||
id: 'e5-7',
|
||||
source: '5',
|
||||
target: '7',
|
||||
type: 'step',
|
||||
style: { stroke: '#f6ab6c' },
|
||||
label: 'a step edge',
|
||||
animated: true,
|
||||
labelStyle: { fill: '#f6ab6c', fontWeight: 700 },
|
||||
},
|
||||
];
|
||||
|
||||
const connectionLineStyle: CSSProperties = { stroke: '#ddd' };
|
||||
const snapGrid: SnapGrid = [16, 16];
|
||||
|
||||
const nodeStrokeColor = (n: Node): string => {
|
||||
if (n.style?.background) return n.style.background as string;
|
||||
if (n.type === 'input') return '#0041d0';
|
||||
if (n.type === 'output') return '#ff0072';
|
||||
if (n.type === 'default') return '#1a192b';
|
||||
|
||||
return '#eee';
|
||||
};
|
||||
|
||||
const nodeColor = (n: Node): string => {
|
||||
if (n.style?.background) return n.style.background as string;
|
||||
|
||||
return '#fff';
|
||||
};
|
||||
|
||||
const OverviewFlow = () => {
|
||||
const [elements, setElements] = useState(initialElements);
|
||||
const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
|
||||
return (
|
||||
<ReactFlow
|
||||
elements={elements}
|
||||
onElementClick={onElementClick}
|
||||
onElementsRemove={onElementsRemove}
|
||||
onConnect={onConnect}
|
||||
onPaneClick={onPaneClick}
|
||||
onPaneScroll={onPaneScroll}
|
||||
onPaneContextMenu={onPaneContextMenu}
|
||||
onNodeDragStart={onNodeDragStart}
|
||||
onNodeDrag={onNodeDrag}
|
||||
onNodeDragStop={onNodeDragStop}
|
||||
onNodeDoubleClick={onNodeDoubleClick}
|
||||
onSelectionDragStart={onSelectionDragStart}
|
||||
onSelectionDrag={onSelectionDrag}
|
||||
onSelectionDragStop={onSelectionDragStop}
|
||||
onSelectionContextMenu={onSelectionContextMenu}
|
||||
onSelectionChange={onSelectionChange}
|
||||
onMoveStart={onMoveStart}
|
||||
onMoveEnd={onMoveEnd}
|
||||
onLoad={onLoad}
|
||||
connectionLineStyle={connectionLineStyle}
|
||||
snapToGrid={true}
|
||||
snapGrid={snapGrid}
|
||||
onEdgeContextMenu={onEdgeContextMenu}
|
||||
onEdgeMouseEnter={onEdgeMouseEnter}
|
||||
onEdgeMouseMove={onEdgeMouseMove}
|
||||
onEdgeMouseLeave={onEdgeMouseLeave}
|
||||
onEdgeDoubleClick={onEdgeDoubleClick}
|
||||
>
|
||||
<MiniMap nodeStrokeColor={nodeStrokeColor} nodeColor={nodeColor} nodeBorderRadius={2} />
|
||||
<Controls />
|
||||
<Background color="#aaa" gap={20} />
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
export default OverviewFlow;
|
||||
@@ -0,0 +1,36 @@
|
||||
import React from 'react';
|
||||
import { useStoreState, useStoreActions } from 'react-flow-renderer';
|
||||
|
||||
const Sidebar = () => {
|
||||
const nodes = useStoreState((store) => store.nodes);
|
||||
const transform = useStoreState((store) => store.transform);
|
||||
const setSelectedElements = useStoreActions((actions) => actions.setSelectedElements);
|
||||
|
||||
const selectAll = () => {
|
||||
setSelectedElements(nodes.map((node) => ({ id: node.id, type: node.type })));
|
||||
};
|
||||
|
||||
return (
|
||||
<aside>
|
||||
<div className="description">
|
||||
This is an example of how you can access the internal state outside of the ReactFlow component.
|
||||
</div>
|
||||
<div className="title">Zoom & pan transform</div>
|
||||
<div className="transform">
|
||||
[{transform[0].toFixed(2)}, {transform[1].toFixed(2)}, {transform[2].toFixed(2)}]
|
||||
</div>
|
||||
<div className="title">Nodes</div>
|
||||
{nodes.map((node) => (
|
||||
<div key={node.id}>
|
||||
Node {node.id} - x: {node.__rf.position.x.toFixed(2)}, y: {node.__rf.position.y.toFixed(2)}
|
||||
</div>
|
||||
))}
|
||||
|
||||
<div className="selectall">
|
||||
<button onClick={selectAll}>select all nodes</button>
|
||||
</div>
|
||||
</aside>
|
||||
);
|
||||
};
|
||||
|
||||
export default Sidebar;
|
||||
@@ -0,0 +1,57 @@
|
||||
import React, { useState, MouseEvent } from 'react';
|
||||
import ReactFlow, {
|
||||
ReactFlowProvider,
|
||||
addEdge,
|
||||
removeElements,
|
||||
Controls,
|
||||
OnLoadParams,
|
||||
FlowElement,
|
||||
Connection,
|
||||
Edge,
|
||||
Elements,
|
||||
ConnectionMode,
|
||||
} from 'react-flow-renderer';
|
||||
|
||||
import Sidebar from './Sidebar';
|
||||
|
||||
import './provider.css';
|
||||
|
||||
const onElementClick = (_: MouseEvent, element: FlowElement) => console.log('click', element);
|
||||
const onLoad = (reactFlowInstance: OnLoadParams) => console.log('flow loaded:', reactFlowInstance);
|
||||
|
||||
const initialElements: Elements = [
|
||||
{ id: '1', type: 'input', data: { label: 'Node 1' }, position: { x: 250, y: 5 } },
|
||||
{ id: '2', data: { label: 'Node 2' }, position: { x: 100, y: 100 } },
|
||||
{ id: '3', data: { label: 'Node 3' }, position: { x: 400, y: 100 } },
|
||||
{ id: '4', data: { label: 'Node 4' }, position: { x: 400, y: 200 } },
|
||||
{ id: 'e1-2', source: '1', target: '2', animated: true },
|
||||
{ id: 'e1-3', source: '1', target: '3' },
|
||||
];
|
||||
|
||||
const ProviderFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
|
||||
|
||||
return (
|
||||
<div className="providerflow">
|
||||
<ReactFlowProvider>
|
||||
<Sidebar />
|
||||
<div className="reactflow-wrapper">
|
||||
<ReactFlow
|
||||
elements={elements}
|
||||
onElementClick={onElementClick}
|
||||
onConnect={onConnect}
|
||||
onElementsRemove={onElementsRemove}
|
||||
onLoad={onLoad}
|
||||
connectionMode={ConnectionMode.Loose}
|
||||
>
|
||||
<Controls />
|
||||
</ReactFlow>
|
||||
</div>
|
||||
</ReactFlowProvider>
|
||||
</div>
|
||||
);
|
||||
};
|
||||
|
||||
export default ProviderFlow;
|
||||
@@ -0,0 +1,45 @@
|
||||
.providerflow {
|
||||
flex-direction: column;
|
||||
display: flex;
|
||||
height: 100%;
|
||||
}
|
||||
|
||||
.providerflow aside {
|
||||
border-right: 1px solid #eee;
|
||||
padding: 15px 10px;
|
||||
font-size: 12px;
|
||||
background: #fcfcfc;
|
||||
}
|
||||
|
||||
.providerflow aside .description {
|
||||
margin-bottom: 10px;
|
||||
}
|
||||
|
||||
.providerflow aside .title {
|
||||
font-weight: 700;
|
||||
margin-bottom: 5px;
|
||||
}
|
||||
|
||||
.providerflow aside .transform {
|
||||
margin-bottom: 20px;
|
||||
}
|
||||
|
||||
.providerflow .reactflow-wrapper {
|
||||
flex-grow: 1;
|
||||
height: 100%;
|
||||
}
|
||||
|
||||
.providerflow .selectall {
|
||||
margin-top: 10px;
|
||||
}
|
||||
|
||||
@media screen and (min-width: 768px) {
|
||||
.providerflow {
|
||||
flex-direction: row;
|
||||
}
|
||||
|
||||
.providerflow aside {
|
||||
width: 20%;
|
||||
max-width: 250px;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,61 @@
|
||||
import React, { memo, useCallback, Dispatch, FC } from 'react';
|
||||
import { useZoomPanHelper, OnLoadParams, Elements, FlowExportObject } from 'react-flow-renderer';
|
||||
import localforage from 'localforage';
|
||||
|
||||
localforage.config({
|
||||
name: 'react-flow',
|
||||
storeName: 'flows',
|
||||
});
|
||||
|
||||
const flowKey = 'example-flow';
|
||||
|
||||
const getNodeId = () => `randomnode_${+new Date()}`;
|
||||
|
||||
type ControlsProps = {
|
||||
rfInstance?: OnLoadParams;
|
||||
setElements: Dispatch<React.SetStateAction<Elements<any>>>;
|
||||
};
|
||||
|
||||
const Controls: FC<ControlsProps> = ({ rfInstance, setElements }) => {
|
||||
const { transform } = useZoomPanHelper();
|
||||
|
||||
const onSave = useCallback(() => {
|
||||
if (rfInstance) {
|
||||
const flow = rfInstance.toObject();
|
||||
localforage.setItem(flowKey, flow);
|
||||
}
|
||||
}, [rfInstance]);
|
||||
|
||||
const onRestore = useCallback(() => {
|
||||
const restoreFlow = async () => {
|
||||
const flow: FlowExportObject | null = await localforage.getItem(flowKey);
|
||||
|
||||
if (flow) {
|
||||
const [x = 0, y = 0] = flow.position;
|
||||
setElements(flow.elements || []);
|
||||
transform({ x, y, zoom: flow.zoom || 0 });
|
||||
}
|
||||
};
|
||||
|
||||
restoreFlow();
|
||||
}, [setElements, transform]);
|
||||
|
||||
const onAdd = useCallback(() => {
|
||||
const newNode = {
|
||||
id: `random_node-${getNodeId()}`,
|
||||
data: { label: 'Added node' },
|
||||
position: { x: Math.random() * window.innerWidth - 100, y: Math.random() * window.innerHeight },
|
||||
};
|
||||
setElements((els) => els.concat(newNode));
|
||||
}, [setElements]);
|
||||
|
||||
return (
|
||||
<div className="save__controls">
|
||||
<button onClick={onSave}>save</button>
|
||||
<button onClick={onRestore}>restore</button>
|
||||
<button onClick={onAdd}>add node</button>
|
||||
</div>
|
||||
);
|
||||
};
|
||||
|
||||
export default memo(Controls);
|
||||
@@ -0,0 +1,37 @@
|
||||
import React, { useState } from 'react';
|
||||
import ReactFlow, {
|
||||
ReactFlowProvider,
|
||||
removeElements,
|
||||
addEdge,
|
||||
Elements,
|
||||
Connection,
|
||||
Edge,
|
||||
OnLoadParams,
|
||||
} from 'react-flow-renderer';
|
||||
|
||||
import Controls from './Controls';
|
||||
|
||||
import './save.css';
|
||||
|
||||
const initialElements: Elements = [
|
||||
{ id: '1', data: { label: 'Node 1' }, position: { x: 100, y: 100 } },
|
||||
{ id: '2', data: { label: 'Node 2' }, position: { x: 100, y: 200 } },
|
||||
{ id: 'e1-2', source: '1', target: '2' },
|
||||
];
|
||||
|
||||
const SaveRestore = () => {
|
||||
const [rfInstance, setRfInstance] = useState<OnLoadParams>();
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
|
||||
return (
|
||||
<ReactFlowProvider>
|
||||
<ReactFlow elements={elements} onElementsRemove={onElementsRemove} onConnect={onConnect} onLoad={setRfInstance}>
|
||||
<Controls rfInstance={rfInstance} setElements={setElements} />
|
||||
</ReactFlow>
|
||||
</ReactFlowProvider>
|
||||
);
|
||||
};
|
||||
|
||||
export default SaveRestore;
|
||||
@@ -0,0 +1,11 @@
|
||||
.save__controls {
|
||||
position: absolute;
|
||||
right: 10px;
|
||||
top: 10px;
|
||||
z-index: 4;
|
||||
font-size: 12px;
|
||||
}
|
||||
|
||||
.save__controls button {
|
||||
margin-left: 5px;
|
||||
}
|
||||
@@ -0,0 +1,70 @@
|
||||
import React, { useState, CSSProperties } from 'react';
|
||||
import ReactFlow, {
|
||||
removeElements,
|
||||
addEdge,
|
||||
MiniMap,
|
||||
isNode,
|
||||
Controls,
|
||||
Background,
|
||||
OnLoadParams,
|
||||
Elements,
|
||||
Connection,
|
||||
Edge,
|
||||
} from 'react-flow-renderer';
|
||||
|
||||
import { getElements } from './utils';
|
||||
|
||||
const buttonWrapperStyles: CSSProperties = { position: 'absolute', right: 10, top: 10, zIndex: 4 };
|
||||
|
||||
const onLoad = (reactFlowInstance: OnLoadParams) => {
|
||||
reactFlowInstance.fitView();
|
||||
console.log(reactFlowInstance.getElements());
|
||||
};
|
||||
|
||||
const initialElements: Elements = getElements(30, 30);
|
||||
|
||||
const StressFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
|
||||
const updatePos = () => {
|
||||
setElements((elms) => {
|
||||
return elms.map((el) => {
|
||||
if (isNode(el)) {
|
||||
return {
|
||||
...el,
|
||||
position: {
|
||||
x: Math.random() * window.innerWidth,
|
||||
y: Math.random() * window.innerHeight,
|
||||
},
|
||||
};
|
||||
}
|
||||
|
||||
return el;
|
||||
});
|
||||
});
|
||||
};
|
||||
|
||||
const updateElements = () => {
|
||||
const grid = Math.ceil(Math.random() * 10);
|
||||
setElements(getElements(grid, grid));
|
||||
};
|
||||
|
||||
return (
|
||||
<ReactFlow elements={elements} onLoad={onLoad} onElementsRemove={onElementsRemove} onConnect={onConnect}>
|
||||
<MiniMap />
|
||||
<Controls />
|
||||
<Background />
|
||||
|
||||
<div style={buttonWrapperStyles}>
|
||||
<button onClick={updatePos} style={{ marginRight: 5 }}>
|
||||
change pos
|
||||
</button>
|
||||
<button onClick={updateElements}>update elements</button>
|
||||
</div>
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
export default StressFlow;
|
||||
@@ -0,0 +1,30 @@
|
||||
import { Elements } from 'react-flow-renderer';
|
||||
|
||||
export function getElements(xElements: number = 10, yElements: number = 10): Elements {
|
||||
const initialElements = [];
|
||||
let nodeId = 1;
|
||||
let recentNodeId = null;
|
||||
|
||||
for (let y = 0; y < yElements; y++) {
|
||||
for (let x = 0; x < xElements; x++) {
|
||||
const position = { x: x * 100, y: y * 50 };
|
||||
const data = { label: `Node ${nodeId}` };
|
||||
const node = {
|
||||
id: nodeId.toString(),
|
||||
style: { width: 50, fontSize: 11 },
|
||||
data,
|
||||
position,
|
||||
};
|
||||
initialElements.push(node);
|
||||
|
||||
if (recentNodeId && nodeId <= xElements * yElements) {
|
||||
initialElements.push({ id: `${x}-${y}`, source: recentNodeId.toString(), target: nodeId.toString() });
|
||||
}
|
||||
|
||||
recentNodeId = nodeId;
|
||||
nodeId++;
|
||||
}
|
||||
}
|
||||
|
||||
return initialElements;
|
||||
}
|
||||
@@ -0,0 +1,53 @@
|
||||
import React, { useState, MouseEvent } from 'react';
|
||||
|
||||
import ReactFlow, { removeElements, addEdge, Node, FlowElement, Elements, Connection, Edge } from 'react-flow-renderer';
|
||||
|
||||
const onNodeDragStop = (_: MouseEvent, node: Node) => console.log('drag stop', node);
|
||||
const onElementClick = (_: MouseEvent, element: FlowElement) => console.log('click', element);
|
||||
|
||||
const elementsA: Elements = [
|
||||
{ id: '1a', type: 'input', data: { label: 'Node 1' }, position: { x: 250, y: 5 }, className: 'light' },
|
||||
{ id: '2a', data: { label: 'Node 2' }, position: { x: 100, y: 100 }, className: 'light' },
|
||||
{ id: '3a', data: { label: 'Node 3' }, position: { x: 400, y: 100 }, className: 'light' },
|
||||
{ id: '4a', data: { label: 'Node 4' }, position: { x: 400, y: 200 }, className: 'light' },
|
||||
{ id: 'e1-2', source: '1a', target: '2a' },
|
||||
{ id: 'e1-3', source: '1a', target: '3a' },
|
||||
];
|
||||
|
||||
const elementsB: Elements = [
|
||||
{ id: 'inputb', type: 'input', data: { label: 'Input' }, position: { x: 300, y: 5 }, className: 'light' },
|
||||
{ id: '1b', data: { label: 'Node 1' }, position: { x: 0, y: 100 }, className: 'light' },
|
||||
{ id: '2b', data: { label: 'Node 2' }, position: { x: 200, y: 100 }, className: 'light' },
|
||||
{ id: '3b', data: { label: 'Node 3' }, position: { x: 400, y: 100 }, className: 'light' },
|
||||
{ id: '4b', data: { label: 'Node 4' }, position: { x: 600, y: 100 }, className: 'light' },
|
||||
|
||||
{ id: 'e1b', source: 'inputb', target: '1b' },
|
||||
{ id: 'e2b', source: 'inputb', target: '2b' },
|
||||
{ id: 'e3b', source: 'inputb', target: '3b' },
|
||||
{ id: 'e4b', source: 'inputb', target: '4b' },
|
||||
];
|
||||
|
||||
const BasicFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>(elementsA);
|
||||
const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
|
||||
return (
|
||||
<ReactFlow
|
||||
elements={elements}
|
||||
onElementClick={onElementClick}
|
||||
onElementsRemove={onElementsRemove}
|
||||
onConnect={onConnect}
|
||||
onNodeDragStop={onNodeDragStop}
|
||||
>
|
||||
<div style={{ position: 'absolute', right: 10, top: 10, zIndex: 4 }}>
|
||||
<button onClick={() => setElements(elementsA)} style={{ marginRight: 5 }}>
|
||||
flow a
|
||||
</button>
|
||||
<button onClick={() => setElements(elementsB)}>flow b</button>
|
||||
</div>
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
export default BasicFlow;
|
||||
@@ -0,0 +1,19 @@
|
||||
import React, { memo, FC, CSSProperties } from 'react';
|
||||
|
||||
import { Handle, Position, NodeProps } from 'react-flow-renderer';
|
||||
|
||||
const nodeStyles: CSSProperties = { padding: '10px 15px', border: '1px solid #ddd' };
|
||||
|
||||
const CustomNode: FC<NodeProps> = ({ id }) => {
|
||||
return (
|
||||
<div style={nodeStyles}>
|
||||
<div>node {id}</div>
|
||||
<Handle type="source" id="left" position={Position.Left} />
|
||||
<Handle type="source" id="right" position={Position.Right} />
|
||||
<Handle type="source" id="top" position={Position.Top} />
|
||||
<Handle type="source" id="bottom" position={Position.Bottom} />
|
||||
</div>
|
||||
);
|
||||
};
|
||||
|
||||
export default memo(CustomNode);
|
||||
@@ -0,0 +1,221 @@
|
||||
import React, { useState, useCallback } from 'react';
|
||||
|
||||
import ReactFlow, {
|
||||
NodeTypesType,
|
||||
addEdge,
|
||||
useZoomPanHelper,
|
||||
ReactFlowProvider,
|
||||
Elements,
|
||||
Connection,
|
||||
Edge,
|
||||
ElementId,
|
||||
ConnectionLineType,
|
||||
ConnectionMode,
|
||||
updateEdge,
|
||||
ArrowHeadType,
|
||||
} from 'react-flow-renderer';
|
||||
import CustomNode from './CustomNode';
|
||||
|
||||
const initialElements: Elements = [
|
||||
{
|
||||
id: '00',
|
||||
type: 'custom',
|
||||
position: { x: 300, y: 250 },
|
||||
},
|
||||
{
|
||||
id: '01',
|
||||
type: 'custom',
|
||||
position: { x: 100, y: 50 },
|
||||
},
|
||||
{
|
||||
id: '02',
|
||||
type: 'custom',
|
||||
position: { x: 500, y: 50 },
|
||||
},
|
||||
{
|
||||
id: '03',
|
||||
type: 'custom',
|
||||
position: { x: 500, y: 500 },
|
||||
},
|
||||
{
|
||||
id: '04',
|
||||
type: 'custom',
|
||||
position: { x: 100, y: 500 },
|
||||
},
|
||||
{
|
||||
id: '10',
|
||||
type: 'custom',
|
||||
position: { x: 300, y: 5 },
|
||||
},
|
||||
{
|
||||
id: '20',
|
||||
type: 'custom',
|
||||
position: { x: 600, y: 250 },
|
||||
},
|
||||
{
|
||||
id: '30',
|
||||
type: 'custom',
|
||||
position: { x: 300, y: 600 },
|
||||
},
|
||||
{
|
||||
id: '40',
|
||||
type: 'custom',
|
||||
position: { x: 5, y: 250 },
|
||||
},
|
||||
{
|
||||
id: 'e0-1a',
|
||||
source: '00',
|
||||
target: '01',
|
||||
sourceHandle: 'left',
|
||||
targetHandle: 'bottom',
|
||||
type: 'smoothstep',
|
||||
arrowHeadType: ArrowHeadType.Arrow,
|
||||
},
|
||||
{
|
||||
id: 'e0-1b',
|
||||
source: '00',
|
||||
target: '01',
|
||||
sourceHandle: 'top',
|
||||
targetHandle: 'right',
|
||||
type: 'smoothstep',
|
||||
arrowHeadType: ArrowHeadType.Arrow,
|
||||
},
|
||||
{
|
||||
id: 'e0-2a',
|
||||
source: '00',
|
||||
target: '02',
|
||||
sourceHandle: 'top',
|
||||
targetHandle: 'left',
|
||||
type: 'smoothstep',
|
||||
arrowHeadType: ArrowHeadType.Arrow,
|
||||
},
|
||||
{
|
||||
id: 'e0-2b',
|
||||
source: '00',
|
||||
target: '02',
|
||||
sourceHandle: 'right',
|
||||
targetHandle: 'bottom',
|
||||
type: 'smoothstep',
|
||||
arrowHeadType: ArrowHeadType.Arrow,
|
||||
},
|
||||
{
|
||||
id: 'e0-3a',
|
||||
source: '00',
|
||||
target: '03',
|
||||
sourceHandle: 'right',
|
||||
targetHandle: 'top',
|
||||
type: 'smoothstep',
|
||||
arrowHeadType: ArrowHeadType.Arrow,
|
||||
},
|
||||
{
|
||||
id: 'e0-3b',
|
||||
source: '00',
|
||||
target: '03',
|
||||
sourceHandle: 'bottom',
|
||||
targetHandle: 'left',
|
||||
type: 'smoothstep',
|
||||
arrowHeadType: ArrowHeadType.Arrow,
|
||||
},
|
||||
{
|
||||
id: 'e0-4a',
|
||||
source: '00',
|
||||
target: '04',
|
||||
sourceHandle: 'bottom',
|
||||
targetHandle: 'right',
|
||||
type: 'smoothstep',
|
||||
arrowHeadType: ArrowHeadType.Arrow,
|
||||
},
|
||||
{
|
||||
id: 'e0-4b',
|
||||
source: '00',
|
||||
target: '04',
|
||||
sourceHandle: 'left',
|
||||
targetHandle: 'top',
|
||||
type: 'smoothstep',
|
||||
arrowHeadType: ArrowHeadType.Arrow,
|
||||
},
|
||||
{
|
||||
id: 'e0-10',
|
||||
source: '00',
|
||||
target: '10',
|
||||
sourceHandle: 'top',
|
||||
targetHandle: 'bottom',
|
||||
type: 'smoothstep',
|
||||
arrowHeadType: ArrowHeadType.Arrow,
|
||||
},
|
||||
{
|
||||
id: 'e0-20',
|
||||
source: '00',
|
||||
target: '20',
|
||||
sourceHandle: 'right',
|
||||
targetHandle: 'left',
|
||||
type: 'smoothstep',
|
||||
arrowHeadType: ArrowHeadType.Arrow,
|
||||
},
|
||||
{
|
||||
id: 'e0-30',
|
||||
source: '00',
|
||||
target: '30',
|
||||
sourceHandle: 'bottom',
|
||||
targetHandle: 'top',
|
||||
type: 'smoothstep',
|
||||
arrowHeadType: ArrowHeadType.Arrow,
|
||||
},
|
||||
{
|
||||
id: 'e0-40',
|
||||
source: '00',
|
||||
target: '40',
|
||||
sourceHandle: 'left',
|
||||
targetHandle: 'right',
|
||||
type: 'smoothstep',
|
||||
arrowHeadType: ArrowHeadType.Arrow,
|
||||
},
|
||||
];
|
||||
|
||||
const nodeTypes: NodeTypesType = {
|
||||
custom: CustomNode,
|
||||
};
|
||||
|
||||
let id = 4;
|
||||
const getId = (): ElementId => `${id++}`;
|
||||
|
||||
const UpdateNodeInternalsFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const onConnect = (params: Connection | Edge) =>
|
||||
setElements((els) => addEdge({ ...params, type: 'smoothstep' }, els));
|
||||
const { project } = useZoomPanHelper();
|
||||
const onEdgeUpdate = (oldEdge: Edge, newConnection: Connection) =>
|
||||
setElements((els) => updateEdge(oldEdge, newConnection, els));
|
||||
|
||||
const onPaneClick = useCallback(
|
||||
(evt) =>
|
||||
setElements((els) =>
|
||||
els.concat({
|
||||
id: getId(),
|
||||
position: project({ x: evt.clientX, y: evt.clientY - 40 }),
|
||||
type: 'custom',
|
||||
})
|
||||
),
|
||||
[project]
|
||||
);
|
||||
|
||||
return (
|
||||
<ReactFlow
|
||||
elements={elements}
|
||||
nodeTypes={nodeTypes}
|
||||
onConnect={onConnect}
|
||||
onPaneClick={onPaneClick}
|
||||
connectionLineType={ConnectionLineType.SmoothStep}
|
||||
connectionMode={ConnectionMode.Loose}
|
||||
onEdgeUpdate={onEdgeUpdate}
|
||||
/>
|
||||
);
|
||||
};
|
||||
|
||||
const WrappedFlow = () => (
|
||||
<ReactFlowProvider>
|
||||
<UpdateNodeInternalsFlow />
|
||||
</ReactFlowProvider>
|
||||
);
|
||||
|
||||
export default WrappedFlow;
|
||||
@@ -0,0 +1,79 @@
|
||||
import React, { useState } from 'react';
|
||||
import ReactFlow, {
|
||||
Controls,
|
||||
updateEdge,
|
||||
addEdge,
|
||||
Elements,
|
||||
OnLoadParams,
|
||||
Connection,
|
||||
Edge,
|
||||
removeElements,
|
||||
} from 'react-flow-renderer';
|
||||
|
||||
const initialElements: Elements = [
|
||||
{
|
||||
id: '1',
|
||||
type: 'input',
|
||||
data: {
|
||||
label: (
|
||||
<>
|
||||
Node <strong>A</strong>
|
||||
</>
|
||||
),
|
||||
},
|
||||
position: { x: 250, y: 0 },
|
||||
},
|
||||
{
|
||||
id: '2',
|
||||
data: {
|
||||
label: (
|
||||
<>
|
||||
Node <strong>B</strong>
|
||||
</>
|
||||
),
|
||||
},
|
||||
position: { x: 100, y: 100 },
|
||||
},
|
||||
{
|
||||
id: '3',
|
||||
data: {
|
||||
label: (
|
||||
<>
|
||||
Node <strong>C</strong>
|
||||
</>
|
||||
),
|
||||
},
|
||||
position: { x: 400, y: 100 },
|
||||
style: { background: '#D6D5E6', color: '#333', border: '1px solid #222138', width: 180 },
|
||||
},
|
||||
{ id: 'e1-2', source: '1', target: '2', label: 'This is a draggable edge' },
|
||||
];
|
||||
|
||||
const onLoad = (reactFlowInstance: OnLoadParams) => reactFlowInstance.fitView();
|
||||
const onEdgeUpdateStart = (_: React.MouseEvent, edge: Edge) => console.log('start update', edge);
|
||||
const onEdgeUpdateEnd = (_: MouseEvent, edge: Edge) => console.log('end update', edge);
|
||||
|
||||
const UpdatableEdge = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const onEdgeUpdate = (oldEdge: Edge, newConnection: Connection) =>
|
||||
setElements((els) => updateEdge(oldEdge, newConnection, els));
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
|
||||
|
||||
return (
|
||||
<ReactFlow
|
||||
elements={elements}
|
||||
onLoad={onLoad}
|
||||
snapToGrid={true}
|
||||
onEdgeUpdate={onEdgeUpdate}
|
||||
onConnect={onConnect}
|
||||
onEdgeUpdateStart={onEdgeUpdateStart}
|
||||
onElementsRemove={onElementsRemove}
|
||||
onEdgeUpdateEnd={onEdgeUpdateEnd}
|
||||
>
|
||||
<Controls />
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
export default UpdatableEdge;
|
||||
@@ -0,0 +1,78 @@
|
||||
import React, { useEffect, useState } from 'react';
|
||||
import ReactFlow, { Elements } from 'react-flow-renderer';
|
||||
|
||||
import './updatenode.css';
|
||||
|
||||
const initialElements: Elements = [
|
||||
{ id: '1', data: { label: '-' }, position: { x: 100, y: 100 } },
|
||||
{ id: '2', data: { label: 'Node 2' }, position: { x: 100, y: 200 } },
|
||||
{ id: 'e1-2', source: '1', target: '2' },
|
||||
];
|
||||
|
||||
const UpdateNode = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const [nodeName, setNodeName] = useState<string>('Node 1');
|
||||
const [nodeBg, setNodeBg] = useState<string>('#eee');
|
||||
const [nodeHidden, setNodeHidden] = useState<boolean>(false);
|
||||
|
||||
useEffect(() => {
|
||||
setElements((els) =>
|
||||
els.map((el) => {
|
||||
if (el.id === '1') {
|
||||
// it's important that you create a new object here in order to notify react flow about the change
|
||||
el.data = {
|
||||
...el.data,
|
||||
label: nodeName,
|
||||
};
|
||||
}
|
||||
|
||||
return el;
|
||||
})
|
||||
);
|
||||
}, [nodeName, setElements]);
|
||||
|
||||
useEffect(() => {
|
||||
setElements((els) =>
|
||||
els.map((el) => {
|
||||
if (el.id === '1') {
|
||||
// it's important that you create a new object here in order to notify react flow about the change
|
||||
el.style = { ...el.style, backgroundColor: nodeBg };
|
||||
}
|
||||
|
||||
return el;
|
||||
})
|
||||
);
|
||||
}, [nodeBg, setElements]);
|
||||
|
||||
useEffect(() => {
|
||||
setElements((els) =>
|
||||
els.map((el) => {
|
||||
if (el.id === '1' || el.id === 'e1-2') {
|
||||
// when you update a simple type you can just update the value
|
||||
el.isHidden = nodeHidden;
|
||||
}
|
||||
|
||||
return el;
|
||||
})
|
||||
);
|
||||
}, [nodeHidden, setElements]);
|
||||
|
||||
return (
|
||||
<ReactFlow elements={elements} defaultZoom={1.5} minZoom={0.2} maxZoom={4}>
|
||||
<div className="updatenode__controls">
|
||||
<label>label:</label>
|
||||
<input value={nodeName} onChange={(evt) => setNodeName(evt.target.value)} />
|
||||
|
||||
<label className="updatenode__bglabel">background:</label>
|
||||
<input value={nodeBg} onChange={(evt) => setNodeBg(evt.target.value)} />
|
||||
|
||||
<div className="updatenode__checkboxwrapper">
|
||||
<label>hidden:</label>
|
||||
<input type="checkbox" checked={nodeHidden} onChange={(evt) => setNodeHidden(evt.target.checked)} />
|
||||
</div>
|
||||
</div>
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
export default UpdateNode;
|
||||
@@ -0,0 +1,21 @@
|
||||
.updatenode__controls {
|
||||
position: absolute;
|
||||
right: 10px;
|
||||
top: 10px;
|
||||
z-index: 4;
|
||||
font-size: 12px;
|
||||
}
|
||||
|
||||
.updatenode__controls label {
|
||||
display: block;
|
||||
}
|
||||
|
||||
.updatenode__bglabel {
|
||||
margin-top: 10px;
|
||||
}
|
||||
|
||||
.updatenode__checkboxwrapper {
|
||||
margin-top: 10px;
|
||||
display: flex;
|
||||
align-items: center;
|
||||
}
|
||||
@@ -0,0 +1,34 @@
|
||||
import React, { memo, FC, useMemo, CSSProperties } from 'react';
|
||||
|
||||
import { Handle, Position, NodeProps } from 'react-flow-renderer';
|
||||
|
||||
const nodeStyles: CSSProperties = { padding: 10, border: '1px solid #ddd' };
|
||||
|
||||
const CustomNode: FC<NodeProps> = ({ data }) => {
|
||||
const handles = useMemo(
|
||||
() =>
|
||||
Array.from({ length: data.handleCount }, (x, i) => {
|
||||
const handleId = `handle-${i}`;
|
||||
return (
|
||||
<Handle
|
||||
key={handleId}
|
||||
type="source"
|
||||
position={Position.Right}
|
||||
id={handleId}
|
||||
style={{ top: 10 * i + data.handlePosition * 10 }}
|
||||
/>
|
||||
);
|
||||
}),
|
||||
[data.handleCount, data.handlePosition]
|
||||
);
|
||||
|
||||
return (
|
||||
<div style={nodeStyles}>
|
||||
<Handle type="target" position={Position.Left} />
|
||||
<div>output handle count: {data.handleCount}</div>
|
||||
{handles}
|
||||
</div>
|
||||
);
|
||||
};
|
||||
|
||||
export default memo(CustomNode);
|
||||
@@ -0,0 +1,101 @@
|
||||
import React, { useState, useCallback, CSSProperties } from 'react';
|
||||
|
||||
import ReactFlow, {
|
||||
NodeTypesType,
|
||||
addEdge,
|
||||
useZoomPanHelper,
|
||||
ReactFlowProvider,
|
||||
Elements,
|
||||
Connection,
|
||||
Edge,
|
||||
ElementId,
|
||||
useUpdateNodeInternals,
|
||||
Position,
|
||||
isEdge,
|
||||
} from 'react-flow-renderer';
|
||||
import CustomNode from './CustomNode';
|
||||
|
||||
const initialHandleCount = 1;
|
||||
|
||||
const initialElements: Elements = [
|
||||
{
|
||||
id: '1',
|
||||
type: 'custom',
|
||||
data: { label: 'Node 1', handleCount: initialHandleCount, handlePosition: 0 },
|
||||
position: { x: 250, y: 5 },
|
||||
},
|
||||
];
|
||||
|
||||
const buttonWrapperStyles: CSSProperties = { position: 'absolute', right: 10, top: 10, zIndex: 10 };
|
||||
|
||||
const nodeTypes: NodeTypesType = {
|
||||
custom: CustomNode,
|
||||
};
|
||||
|
||||
let id = 5;
|
||||
const getId = (): ElementId => `${id++}`;
|
||||
|
||||
const UpdateNodeInternalsFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const updateNodeInternals = useUpdateNodeInternals();
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
const { project } = useZoomPanHelper();
|
||||
|
||||
const onPaneClick = useCallback(
|
||||
(evt) =>
|
||||
setElements((els) =>
|
||||
els.concat({
|
||||
id: getId(),
|
||||
position: project({ x: evt.clientX, y: evt.clientY - 40 }),
|
||||
data: { label: 'new node' },
|
||||
targetPosition: Position.Left,
|
||||
sourcePosition: Position.Right,
|
||||
})
|
||||
),
|
||||
[project]
|
||||
);
|
||||
|
||||
const toggleHandleCount = useCallback(() => {
|
||||
setElements((els) =>
|
||||
els.map((el) => {
|
||||
if (isEdge(el)) {
|
||||
return el;
|
||||
}
|
||||
|
||||
return { ...el, data: { ...el.data, handleCount: el.data?.handleCount === 1 ? 2 : 1 } };
|
||||
})
|
||||
);
|
||||
}, []);
|
||||
|
||||
const toggleHandlePosition = useCallback(() => {
|
||||
setElements((els) =>
|
||||
els.map((el) => {
|
||||
if (isEdge(el)) {
|
||||
return el;
|
||||
}
|
||||
|
||||
return { ...el, data: { ...el.data, handlePosition: el.data?.handlePosition === 0 ? 1 : 0 } };
|
||||
})
|
||||
);
|
||||
}, []);
|
||||
|
||||
const updateNode = useCallback(() => updateNodeInternals('1'), [updateNodeInternals]);
|
||||
|
||||
return (
|
||||
<ReactFlow elements={elements} nodeTypes={nodeTypes} onConnect={onConnect} onPaneClick={onPaneClick}>
|
||||
<div style={buttonWrapperStyles}>
|
||||
<button onClick={toggleHandleCount}>toggle handle count</button>
|
||||
<button onClick={toggleHandlePosition}>toggle handle position</button>
|
||||
<button onClick={updateNode}>update node internals</button>
|
||||
</div>
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
const WrappedFlow = () => (
|
||||
<ReactFlowProvider>
|
||||
<UpdateNodeInternalsFlow />
|
||||
</ReactFlowProvider>
|
||||
);
|
||||
|
||||
export default WrappedFlow;
|
||||
@@ -0,0 +1,65 @@
|
||||
import React, { useState, useCallback } from 'react';
|
||||
|
||||
import ReactFlow, {
|
||||
removeElements,
|
||||
addEdge,
|
||||
Background,
|
||||
MiniMap,
|
||||
useZoomPanHelper,
|
||||
ReactFlowProvider,
|
||||
Elements,
|
||||
ElementId,
|
||||
Connection,
|
||||
Edge,
|
||||
} from 'react-flow-renderer';
|
||||
|
||||
const initialElements: Elements = [
|
||||
{ id: '1', type: 'input', data: { label: 'Node 1' }, position: { x: 250, y: 5 }, className: 'light' },
|
||||
{ id: '2', data: { label: 'Node 2' }, position: { x: 100, y: 100 }, className: 'light' },
|
||||
{ id: '3', data: { label: 'Node 3' }, position: { x: 400, y: 100 }, className: 'light' },
|
||||
{ id: '4', data: { label: 'Node 4' }, position: { x: 400, y: 200 }, className: 'light' },
|
||||
{ id: 'e1-2', source: '1', target: '2', animated: true },
|
||||
{ id: 'e1-3', source: '1', target: '3' },
|
||||
];
|
||||
|
||||
let id = 5;
|
||||
const getId = (): ElementId => `${id++}`;
|
||||
|
||||
const UseZoomPanHelperFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const onElementsRemove = (elementsToRemove: Elements) => setElements((els) => removeElements(elementsToRemove, els));
|
||||
const onConnect = (params: Connection | Edge) => setElements((els) => addEdge(params, els));
|
||||
const { project } = useZoomPanHelper();
|
||||
|
||||
const onPaneClick = useCallback(
|
||||
(evt) => {
|
||||
const projectedPosition = project({ x: evt.clientX, y: evt.clientY - 40 });
|
||||
|
||||
setElements((els) =>
|
||||
els.concat({
|
||||
id: getId(),
|
||||
position: projectedPosition,
|
||||
data: {
|
||||
label: `${projectedPosition.x}-${projectedPosition.y}`,
|
||||
},
|
||||
})
|
||||
);
|
||||
},
|
||||
[project]
|
||||
);
|
||||
|
||||
return (
|
||||
<ReactFlow elements={elements} onElementsRemove={onElementsRemove} onConnect={onConnect} onPaneClick={onPaneClick}>
|
||||
<Background />
|
||||
<MiniMap />
|
||||
</ReactFlow>
|
||||
);
|
||||
};
|
||||
|
||||
const WrappedFlow = () => (
|
||||
<ReactFlowProvider>
|
||||
<UseZoomPanHelperFlow />
|
||||
</ReactFlowProvider>
|
||||
);
|
||||
|
||||
export default WrappedFlow;
|
||||
@@ -0,0 +1,73 @@
|
||||
import React, { useState, MouseEvent as ReactMouseEvent, FC } from 'react';
|
||||
import ReactFlow, {
|
||||
addEdge,
|
||||
Handle,
|
||||
OnLoadParams,
|
||||
Connection,
|
||||
Position,
|
||||
Elements,
|
||||
Edge,
|
||||
OnConnectStartParams,
|
||||
NodeProps,
|
||||
NodeTypesType,
|
||||
} from 'react-flow-renderer';
|
||||
|
||||
import './validation.css';
|
||||
|
||||
const initialElements: Elements = [
|
||||
{ id: '0', type: 'custominput', position: { x: 0, y: 150 } },
|
||||
{ id: 'A', type: 'customnode', position: { x: 250, y: 0 } },
|
||||
{ id: 'B', type: 'customnode', position: { x: 250, y: 150 } },
|
||||
{ id: 'C', type: 'customnode', position: { x: 250, y: 300 } },
|
||||
];
|
||||
|
||||
const onLoad = (reactFlowInstance: OnLoadParams) => reactFlowInstance.fitView();
|
||||
const isValidConnection = (connection: Connection) => connection.target === 'B';
|
||||
const onConnectStart = (_: ReactMouseEvent, { nodeId, handleType }: OnConnectStartParams) =>
|
||||
console.log('on connect start', { nodeId, handleType });
|
||||
const onConnectStop = (event: MouseEvent) => console.log('on connect stop', event);
|
||||
const onConnectEnd = (event: MouseEvent) => console.log('on connect end', event);
|
||||
|
||||
const CustomInput: FC<NodeProps> = () => (
|
||||
<>
|
||||
<div>Only connectable with B</div>
|
||||
<Handle type="source" position={Position.Right} isValidConnection={isValidConnection} />
|
||||
</>
|
||||
);
|
||||
|
||||
const CustomNode: FC<NodeProps> = ({ id }) => (
|
||||
<>
|
||||
<Handle type="target" position={Position.Left} isValidConnection={isValidConnection} />
|
||||
<div>{id}</div>
|
||||
<Handle type="source" position={Position.Right} isValidConnection={isValidConnection} />
|
||||
</>
|
||||
);
|
||||
|
||||
const nodeTypes: NodeTypesType = {
|
||||
custominput: CustomInput,
|
||||
customnode: CustomNode,
|
||||
};
|
||||
|
||||
const HorizontalFlow = () => {
|
||||
const [elements, setElements] = useState<Elements>(initialElements);
|
||||
const onConnect = (params: Connection | Edge) => {
|
||||
console.log('on connect', params);
|
||||
setElements((els) => addEdge(params, els));
|
||||
};
|
||||
|
||||
return (
|
||||
<ReactFlow
|
||||
elements={elements}
|
||||
onConnect={onConnect}
|
||||
selectNodesOnDrag={false}
|
||||
onLoad={onLoad}
|
||||
className="validationflow"
|
||||
nodeTypes={nodeTypes}
|
||||
onConnectStart={onConnectStart}
|
||||
onConnectStop={onConnectStop}
|
||||
onConnectEnd={onConnectEnd}
|
||||
/>
|
||||
);
|
||||
};
|
||||
|
||||
export default HorizontalFlow;
|
||||
@@ -0,0 +1,31 @@
|
||||
.validationflow .react-flow__node {
|
||||
width: 150px;
|
||||
border-radius: 5px;
|
||||
padding: 10px;
|
||||
color: #555;
|
||||
border: 1px solid #ddd;
|
||||
text-align: center;
|
||||
font-size: 12px;
|
||||
}
|
||||
|
||||
.validationflow .react-flow__node-customnode {
|
||||
background: #e6e6e9;
|
||||
border: 1px solid #ddd;
|
||||
}
|
||||
|
||||
.react-flow__node-custominput .react-flow__handle {
|
||||
background: #e6e6e9;
|
||||
}
|
||||
|
||||
.validationflow .react-flow__node-custominput {
|
||||
background: #fff;
|
||||
|
||||
}
|
||||
|
||||
.validationflow .react-flow__handle-connecting {
|
||||
background: #ff6060;
|
||||
}
|
||||
|
||||
.validationflow .react-flow__handle-valid {
|
||||
background: #55dd99;
|
||||
}
|
||||
@@ -0,0 +1,82 @@
|
||||
body {
|
||||
font-family: sans-serif;
|
||||
color: #111;
|
||||
}
|
||||
|
||||
html,
|
||||
body,
|
||||
#root {
|
||||
margin: 0;
|
||||
height: 100%;
|
||||
}
|
||||
|
||||
#root {
|
||||
display: flex;
|
||||
flex-direction: column;
|
||||
}
|
||||
|
||||
header {
|
||||
padding: 10px;
|
||||
border-bottom: 1px solid #eee;
|
||||
display: flex;
|
||||
font-weight: 700;
|
||||
align-items: center;
|
||||
}
|
||||
|
||||
.logo {
|
||||
text-decoration: none;
|
||||
display: block;
|
||||
line-height: 1;
|
||||
}
|
||||
|
||||
header a,
|
||||
header a:focus,
|
||||
header a:active,
|
||||
header a:visited {
|
||||
color: #111;
|
||||
}
|
||||
|
||||
header a:hover {
|
||||
color: #333;
|
||||
}
|
||||
|
||||
header select {
|
||||
margin-left: 1em;
|
||||
}
|
||||
|
||||
.overview-example__add {
|
||||
display: none;
|
||||
}
|
||||
|
||||
.react-flow__node a {
|
||||
font-weight: 700;
|
||||
color: #111;
|
||||
}
|
||||
|
||||
.react-flow__node.dark-node {
|
||||
background: #0041d0;
|
||||
color: #f8f8f8;
|
||||
}
|
||||
|
||||
.react-flow__node.dark {
|
||||
background: #557;
|
||||
color: #f8f8f8;
|
||||
}
|
||||
|
||||
.react-flow__node-selectorNode {
|
||||
font-size: 12px;
|
||||
background: #f0f2f3;
|
||||
border: 1px solid 555;
|
||||
border-radius: 5px;
|
||||
text-align: center;
|
||||
}
|
||||
|
||||
.react-flow__node-selectorNode .react-flow__handle {
|
||||
border-color: #f0f2f3;
|
||||
}
|
||||
|
||||
@media screen and (min-width: 768px) {
|
||||
.overview-example__add {
|
||||
display: block;
|
||||
}
|
||||
}
|
||||
@@ -0,0 +1,165 @@
|
||||
import React, { ChangeEvent } from 'react';
|
||||
import ReactDOM from 'react-dom';
|
||||
import { BrowserRouter as Router, Route, Switch, withRouter } from 'react-router-dom';
|
||||
|
||||
import Overview from './Overview';
|
||||
import Basic from './Basic';
|
||||
import CustomNode from './CustomNode';
|
||||
import Stress from './Stress';
|
||||
import Interaction from './Interaction';
|
||||
import Empty from './Empty';
|
||||
import Edges from './Edges';
|
||||
import Validation from './Validation';
|
||||
import Provider from './Provider';
|
||||
import Hidden from './Hidden';
|
||||
import EdgeTypes from './EdgeTypes';
|
||||
import CustomConnectionLine from './CustomConnectionLine';
|
||||
import NodeTypeChange from './NodeTypeChange';
|
||||
import NodeTypesObjectChange from './NodeTypesObjectChange';
|
||||
import UpdatableEdge from './UpdatableEdge';
|
||||
import UpdateNode from './UpdateNode';
|
||||
import SaveRestore from './SaveRestore';
|
||||
import DragNDrop from './DragNDrop';
|
||||
import Layout from './Layouting';
|
||||
import SwitchFlows from './Switch';
|
||||
import UseZoomPanHelper from './UseZoomPanHelper';
|
||||
import UseUpdateNodeInternals from './UseUpdateNodeInternals';
|
||||
import Undirectional from './Undirectional';
|
||||
import MultiFlows from './MultiFlows';
|
||||
import DragHandle from './DragHandle';
|
||||
|
||||
import './index.css';
|
||||
|
||||
const routes = [
|
||||
{
|
||||
path: '/',
|
||||
component: Overview,
|
||||
},
|
||||
{
|
||||
path: '/edges',
|
||||
component: Edges,
|
||||
},
|
||||
{
|
||||
path: '/custom-node',
|
||||
component: CustomNode,
|
||||
},
|
||||
{
|
||||
path: '/validation',
|
||||
component: Validation,
|
||||
},
|
||||
{
|
||||
path: '/provider',
|
||||
component: Provider,
|
||||
},
|
||||
{
|
||||
path: '/stress',
|
||||
component: Stress,
|
||||
},
|
||||
{
|
||||
path: '/interaction',
|
||||
component: Interaction,
|
||||
},
|
||||
{
|
||||
path: '/basic',
|
||||
component: Basic,
|
||||
},
|
||||
{
|
||||
path: '/empty',
|
||||
component: Empty,
|
||||
},
|
||||
{
|
||||
path: '/hidden',
|
||||
component: Hidden,
|
||||
},
|
||||
{
|
||||
path: '/edge-types',
|
||||
component: EdgeTypes,
|
||||
},
|
||||
{
|
||||
path: '/custom-connectionline',
|
||||
component: CustomConnectionLine,
|
||||
},
|
||||
{
|
||||
path: '/nodetype-change',
|
||||
component: NodeTypeChange,
|
||||
},
|
||||
{
|
||||
path: '/nodetypesobject-change',
|
||||
component: NodeTypesObjectChange,
|
||||
},
|
||||
{
|
||||
path: '/updatable-edge',
|
||||
component: UpdatableEdge,
|
||||
},
|
||||
{
|
||||
path: '/update-node',
|
||||
component: UpdateNode,
|
||||
},
|
||||
{
|
||||
path: '/save-restore',
|
||||
component: SaveRestore,
|
||||
},
|
||||
{
|
||||
path: '/drag-and-drop',
|
||||
component: DragNDrop,
|
||||
},
|
||||
{
|
||||
path: '/layouting',
|
||||
component: Layout,
|
||||
},
|
||||
{
|
||||
path: '/switch',
|
||||
component: SwitchFlows,
|
||||
},
|
||||
{
|
||||
path: '/usezoompanhelper',
|
||||
component: UseZoomPanHelper,
|
||||
},
|
||||
{
|
||||
path: '/useupdatenodeinternals',
|
||||
component: UseUpdateNodeInternals,
|
||||
},
|
||||
{
|
||||
path: '/undirectional',
|
||||
component: Undirectional,
|
||||
},
|
||||
{
|
||||
path: '/multiflows',
|
||||
component: MultiFlows,
|
||||
},
|
||||
{
|
||||
path: '/draghandle',
|
||||
component: DragHandle,
|
||||
},
|
||||
];
|
||||
|
||||
const Header = withRouter(({ history, location }) => {
|
||||
const onChange = (event: ChangeEvent<HTMLSelectElement>) => history.push(event.target.value);
|
||||
|
||||
return (
|
||||
<header>
|
||||
<a className="logo" href="https://github.com/wbkd/react-flow">
|
||||
React Flow Dev
|
||||
</a>
|
||||
<select defaultValue={location.pathname} onChange={onChange}>
|
||||
{routes.map((route) => (
|
||||
<option value={route.path} key={route.path}>
|
||||
{route.path === '/' ? 'overview' : route.path.substr(1, route.path.length)}
|
||||
</option>
|
||||
))}
|
||||
</select>
|
||||
</header>
|
||||
);
|
||||
});
|
||||
|
||||
ReactDOM.render(
|
||||
<Router forceRefresh={true}>
|
||||
<Header />
|
||||
<Switch>
|
||||
{routes.map((route) => (
|
||||
<Route exact path={route.path} render={() => <route.component />} key={route.path} />
|
||||
))}
|
||||
</Switch>
|
||||
</Router>,
|
||||
document.getElementById('root')
|
||||
);
|
||||
+1
@@ -0,0 +1 @@
|
||||
/// <reference types="react-scripts" />
|
||||
Reference in New Issue
Block a user