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comparison src/render/NodeDisplay.ts @ 106:2468f2227d22

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make src/layout/ and src/render/ separation
author drewp@bigasterisk.com
date Sun, 13 Mar 2022 22:00:30 -0700
parents src/NodeDisplay.ts@4d19759d0d9a
children
comparison
equal deleted inserted replaced
105:4bb8c7775c83 106:2468f2227d22
1 import { html, TemplateResult } from "lit";
2 import { Literal, NamedNode, Term, Util } from "n3";
3 import { SuffixLabels } from "../layout/suffixLabels";
4
5 export class NodeDisplay {
6 labels: SuffixLabels;
7 constructor(labels: SuffixLabels) {
8 this.labels = labels;
9 }
10 render(n: Term | NamedNode): TemplateResult {
11 if (Util.isLiteral(n)) {
12 n = n as Literal;
13 let dtPart: any = "";
14 if (n.datatype &&
15 n.datatype.value != "http://www.w3.org/2001/XMLSchema#string" && // boring
16 n.datatype.value !=
17 "http://www.w3.org/1999/02/22-rdf-syntax-ns#langString" // boring
18 ) {
19 dtPart = html`
20 ^^<span class="literalType"> ${this.render(n.datatype)} </span>
21 `;
22 }
23 return html` <span class="literal">${n.value}${dtPart}</span> `;
24 }
25
26 if (Util.isNamedNode(n)) {
27 n = n as NamedNode;
28 let shortened = false;
29 let uriValue: string = n.value;
30 for (let [long, short] of [
31 ["http://www.w3.org/1999/02/22-rdf-syntax-ns#", "rdf:"],
32 ["http://www.w3.org/2000/01/rdf-schema#", "rdfs:"],
33 ["http://purl.org/dc/elements/1.1/", "dc:"],
34 ["http://www.w3.org/2001/XMLSchema#", "xsd:"],
35 ]) {
36 if (uriValue.startsWith(long)) {
37 uriValue = short + uriValue.substr(long.length);
38 shortened = true;
39 break;
40 }
41 }
42 if (!shortened) {
43 let dn: string | undefined = this.labels.getLabelForNode(uriValue);
44 if (dn === undefined) {
45 throw new Error(`dn=${dn}`);
46 }
47 uriValue = dn;
48 }
49
50 return html` <a class="graphUri" href="${n.value}">${uriValue}</a> `;
51 }
52
53 return html` [${n.termType} ${n.value}] `;
54 }
55 }