forked from MapComplete/MapComplete
34 lines
No EOL
1.2 KiB
TypeScript
34 lines
No EOL
1.2 KiB
TypeScript
/***
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* Saves all the features that are passed in to localstorage, so they can be retrieved on the next run
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*
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* Technically, more an Actor then a featuresource, but it fits more neatly this ay
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*/
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import {FeatureSourceForLayer} from "../FeatureSource";
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export default class SaveTileToLocalStorageActor {
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public static readonly storageKey: string = "cached-features";
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public static readonly formatVersion : string = "1"
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constructor(source: FeatureSourceForLayer, tileIndex: number) {
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source.features.addCallbackAndRunD(features => {
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const key = `${SaveTileToLocalStorageActor.storageKey}-${source.layer.layerDef.id}-${tileIndex}`
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const now = new Date().getTime()
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if (features.length == 0) {
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return;
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}
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try {
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localStorage.setItem(key, JSON.stringify(features));
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localStorage.setItem(key + "-time", JSON.stringify(now))
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localStorage.setItem(key+"-format", SaveTileToLocalStorageActor.formatVersion)
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} catch (e) {
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console.warn("Could not save the features to local storage:", e)
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}
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})
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}
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} |