ragflow/web/src/pages/agent/canvas/node/variable-display.tsx
2025-12-09 16:47:21 +08:00

89 lines
2.2 KiB
TypeScript

import i18n from '@/locales/config';
import { BeginId } from '@/pages/agent/constant';
import { ReactNode } from 'react';
const prefix = BeginId + '@';
interface VariableDisplayProps {
content: string;
getLabel?: (value?: string) => string | ReactNode;
}
// This component mimics the VariableNode's decorate function from PromptEditor
function VariableNodeDisplay({
value,
label,
}: {
value: string;
label: ReactNode;
}) {
let content: ReactNode = <span className="text-accent-primary">{label}</span>;
if (value.startsWith(prefix)) {
content = (
<div>
<span>{i18n.t(`flow.begin`)}</span> / {content}
</div>
);
}
return <div className="inline-flex items-center mr-1">{content}</div>;
}
export function VariableDisplay({ content, getLabel }: VariableDisplayProps) {
if (!content) return null;
// Regular expression to match content within {}
const regex = /{([^}]*)}/g;
let match;
let lastIndex = 0;
const elements: ReactNode[] = [];
const findLabelByValue = (value: string) => {
if (getLabel) {
const label = getLabel(value);
return label;
}
return null;
};
while ((match = regex.exec(content)) !== null) {
const { 1: variableValue, index, 0: template } = match;
// Add the previous text part (if any)
if (index > lastIndex) {
elements.push(
<span key={`text-${index}`}>{content.slice(lastIndex, index)}</span>,
);
}
// Try to find the label
const label = findLabelByValue(variableValue);
if (label && label !== variableValue) {
// If we found a valid label, render as variable node
elements.push(
<VariableNodeDisplay
key={`variable-${index}`}
value={variableValue}
label={label}
/>,
);
} else {
// If no label found, keep as original text
elements.push(<span key={`text-${index}-template`}>{template}</span>);
}
// Update index
lastIndex = regex.lastIndex;
}
// Add the last part of text (if any)
if (lastIndex < content.length) {
elements.push(
<span key={`text-${lastIndex}`}>{content.slice(lastIndex)}</span>,
);
}
return <>{elements.length > 0 ? elements : content}</>;
}