53 lines
No EOL
1.9 KiB
TypeScript
53 lines
No EOL
1.9 KiB
TypeScript
import ImageProvider, {ProvidedImage} from "./ImageProvider";
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import BaseUIElement from "../../UI/BaseUIElement";
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import Svg from "../../Svg";
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import {WikimediaImageProvider} from "./WikimediaImageProvider";
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import Wikidata from "../Web/Wikidata";
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export class WikidataImageProvider extends ImageProvider {
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public static readonly singleton = new WikidataImageProvider()
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public readonly defaultKeyPrefixes = ["wikidata"]
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private constructor() {
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super()
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}
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public SourceIcon(backlinkSource?: string): BaseUIElement {
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throw Svg.wikidata_svg();
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}
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public async ExtractUrls(key: string, value: string): Promise<Promise<ProvidedImage>[]> {
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const entity = await Wikidata.LoadWikidataEntryAsync(value)
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if (entity === undefined) {
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return []
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}
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const allImages: Promise<ProvidedImage>[] = []
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// P18 is the claim 'depicted in this image'
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for (const img of Array.from(entity.claims.get("P18") ?? [])) {
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const promises = await WikimediaImageProvider.singleton.ExtractUrls(undefined, img)
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allImages.push(...promises)
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}
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// P373 is 'commons category'
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for (let cat of Array.from(entity.claims.get("P373") ?? [])) {
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if (!cat.startsWith("Category:")) {
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cat = "Category:" + cat
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}
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const promises = await WikimediaImageProvider.singleton.ExtractUrls(undefined, cat)
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allImages.push(...promises)
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}
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const commons = entity.commons
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if (commons !== undefined && (commons.startsWith("Category:") || commons.startsWith("File:"))) {
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const promises = await WikimediaImageProvider.singleton.ExtractUrls(undefined, commons)
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allImages.push(...promises)
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}
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return allImages
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}
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public DownloadAttribution(url: string): Promise<any> {
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throw new Error("Method not implemented; shouldn't be needed!");
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}
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} |