Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 | import {
Handle,
type HandleProps,
type Connection,
useNodeId, useNodeConnections
} from '@xyflow/react';
import {useState} from 'react';
import { type HandleRule, useHandleRules} from "../HandleRuleLogic.ts";
import "./RuleBasedHandle.module.css";
export function MultiConnectionHandle({
id,
type,
rules = [],
...otherProps
} : HandleProps & { rules?: HandleRule[]}) {
let nodeId = useNodeId();
// this check is used to make sure that the handle code doesn't break when used inside a test,
// since useNodeId would be undefined if the handle is not used inside a node
nodeId = nodeId ? nodeId : "mockId";
const validate = useHandleRules(nodeId, id!, type!, rules);
const connections = useNodeConnections({
id: nodeId,
handleType: type,
handleId: id!
})
// initialise the handles state with { isValid: true } to show that connections are possible
const [handleState, setHandleState] = useState<{ isSatisfied: boolean, message?: string }>({ isSatisfied: true });
return (
<Handle
{...otherProps}
id={id}
type={type}
className={"multiConnectionHandle" + (connections.length === 0 ? " unconnected" : " connected")}
isValidConnection={(connection) => {
const result = validate(connection as Connection);
setHandleState(result);
return result.isSatisfied;
}}
title={handleState.message}
/>
);
}
export function SingleConnectionHandle({
id,
type,
rules = [],
...otherProps
} : HandleProps & { rules?: HandleRule[]}) {
let nodeId = useNodeId();
// this check is used to make sure that the handle code doesn't break when used inside a test,
// since useNodeId would be undefined if the handle is not used inside a node
nodeId = nodeId ? nodeId : "mockId";
const validate = useHandleRules(nodeId, id!, type!, rules);
const connections = useNodeConnections({
id: nodeId,
handleType: type,
handleId: id!
})
// initialise the handles state with { isValid: true } to show that connections are possible
const [handleState, setHandleState] = useState<{ isSatisfied: boolean, message?: string }>({ isSatisfied: true });
return (
<Handle
{...otherProps}
id={id}
type={type}
className={"singleConnectionHandle" + (connections.length === 0 ? " unconnected" : " connected")}
isConnectable={connections.length === 0}
isValidConnection={(connection) => {
const result = validate(connection as Connection);
setHandleState(result);
return result.isSatisfied;
}}
title={handleState.message}
/>
);
}
|