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import { computed } from "mobx";
import { observer } from "mobx-react";
import { Doc } from "../../../../fields/Doc";
import { Id } from "../../../../fields/FieldSymbols";
import { Utils } from "../../../../Utils";
import { DocumentType } from "../../../documents/DocumentTypes";
import { DocumentManager } from "../../../util/DocumentManager";
import { DocumentView } from "../../nodes/DocumentView";
import "./CollectionFreeFormLinksView.scss";
import { CollectionFreeFormLinkView } from "./CollectionFreeFormLinkView";
import React = require("react");
@observer
export class CollectionFreeFormLinksView extends React.Component {
@computed get uniqueConnections() {
const connections = DocumentManager.Instance.LinkedDocumentViews.reduce((drawnPairs, connection) => {
if (!drawnPairs.reduce((found, drawnPair) => {
const match1 = (connection.a === drawnPair.a && connection.b === drawnPair.b);
const match2 = (connection.a === drawnPair.b && connection.b === drawnPair.a);
const match = match1 || match2;
if (match && !drawnPair.l.reduce((found, link) => found || link[Id] === connection.l[Id], false)) {
drawnPair.l.push(connection.l);
}
return match || found;
}, false)) {
drawnPairs.push({ a: connection.a, b: connection.b, l: [connection.l] });
}
return drawnPairs;
}, [] as { a: DocumentView, b: DocumentView, l: Doc[] }[]);
return connections.filter(c => c.a.props.Document.type === DocumentType.LINK)
.map(c => <CollectionFreeFormLinkView key={Utils.GenerateGuid()} A={c.a} B={c.b} LinkDocs={c.l} />);
}
render() {
return <div className="collectionfreeformlinksview-container">
<svg className="collectionfreeformlinksview-svgCanvas">
{this.uniqueConnections}
</svg>
{this.props.children}
</div>;
}
}
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