mapcomplete/Logic/ImageProviders/AllImageProviders.ts
2021-11-07 16:34:51 +01:00

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2.5 KiB
TypeScript

import {Mapillary} from "./Mapillary";
import {WikimediaImageProvider} from "./WikimediaImageProvider";
import {Imgur} from "./Imgur";
import GenericImageProvider from "./GenericImageProvider";
import {UIEventSource} from "../UIEventSource";
import ImageProvider, {ProvidedImage} from "./ImageProvider";
import {WikidataImageProvider} from "./WikidataImageProvider";
/**
* A generic 'from the interwebz' image picker, without attribution
*/
export default class AllImageProviders {
public static ImageAttributionSource: ImageProvider[] = [
Imgur.singleton,
Mapillary.singleton,
WikidataImageProvider.singleton,
WikimediaImageProvider.singleton,
new GenericImageProvider(
[].concat(...Imgur.defaultValuePrefix, ...WikimediaImageProvider.commonsPrefixes, ...Mapillary.valuePrefixes)
)
]
public static defaultKeys = [].concat(AllImageProviders.ImageAttributionSource.map(provider => provider.defaultKeyPrefixes))
private static _cache: Map<string, UIEventSource<ProvidedImage[]>> = new Map<string, UIEventSource<ProvidedImage[]>>()
public static LoadImagesFor(tags: UIEventSource<any>, tagKey?: string[]): UIEventSource<ProvidedImage[]> {
if (tags.data.id === undefined) {
return undefined;
}
const cacheKey = tags.data.id + tagKey
const cached = this._cache.get(cacheKey)
if (cached !== undefined) {
return cached
}
const source = new UIEventSource([])
this._cache.set(cacheKey, source)
const allSources = []
for (const imageProvider of AllImageProviders.ImageAttributionSource) {
let prefixes = imageProvider.defaultKeyPrefixes
if (tagKey !== undefined) {
prefixes = tagKey
}
const singleSource = imageProvider.GetRelevantUrls(tags, {
prefixes: prefixes
})
allSources.push(singleSource)
singleSource.addCallbackAndRunD(_ => {
const all: ProvidedImage[] = [].concat(...allSources.map(source => source.data))
const uniq = []
const seen = new Set<string>()
for (const img of all) {
if (seen.has(img.url)) {
continue
}
seen.add(img.url)
uniq.push(img)
}
source.setData(uniq)
})
}
return source;
}
}