forked from MapComplete/MapComplete
108 lines
No EOL
4.2 KiB
TypeScript
108 lines
No EOL
4.2 KiB
TypeScript
import Combine from "../Base/Combine";
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import {UIEventSource} from "../../Logic/UIEventSource";
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import UserRelatedState from "../../Logic/State/UserRelatedState";
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import Translations from "../i18n/Translations";
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import {Utils} from "../../Utils";
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import {FlowStep} from "./FlowStep";
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import Title from "../Base/Title";
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import BaseUIElement from "../BaseUIElement";
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import Histogram from "../BigComponents/Histogram";
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import Toggleable from "../Base/Toggleable";
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import List from "../Base/List";
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import CheckBoxes from "../Input/Checkboxes";
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/**
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* Shows the data to import on a map, asks for the correct layer to be selected
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*/
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export class PreviewPanel extends Combine implements FlowStep<{ features: { properties: any, geometry: { coordinates: [number, number] } }[] }> {
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public readonly IsValid: UIEventSource<boolean>;
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public readonly Value: UIEventSource<{ features: { properties: any, geometry: { coordinates: [number, number] } }[] }>
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constructor(
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state: UserRelatedState,
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geojson: { features: { properties: any, geometry: { coordinates: [number, number] } }[] }) {
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const t = Translations.t.importHelper;
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const propertyKeys = new Set<string>()
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for (const f of geojson.features) {
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Object.keys(f.properties).forEach(key => propertyKeys.add(key))
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}
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const attributeOverview: BaseUIElement[] = []
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const n = geojson.features.length;
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for (const key of Array.from(propertyKeys)) {
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const values = Utils.NoNull(geojson.features.map(f => f.properties[key]))
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const allSame = !values.some(v => v !== values[0])
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let countSummary: BaseUIElement
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if (values.length === n) {
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countSummary = t.allAttributesSame
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} else {
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countSummary = t.someHaveSame.Subs({
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count: values.length,
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percentage: Math.floor(100 * values.length / n)
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})
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}
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if (allSame) {
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attributeOverview.push(new Title(key + "=" + values[0]))
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attributeOverview.push(countSummary)
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continue
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}
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const uniqueCount = new Set(values).size
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if (uniqueCount !== values.length && uniqueCount < 15) {
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attributeOverview.push()
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// There are some overlapping values: histogram time!
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let hist: BaseUIElement =
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new Combine([
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countSummary,
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new Histogram(
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new UIEventSource<string[]>(values),
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"Value",
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"Occurence",
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{
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sortMode: "count-rev"
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})
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]).SetClass("flex flex-col")
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const title = new Title(key + "=*")
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if (uniqueCount > 15) {
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hist = new Toggleable(title,
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hist.SetClass("block")
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).Collapse()
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} else {
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attributeOverview.push(title)
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}
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attributeOverview.push(hist)
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continue
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}
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// All values are different or too much unique values, we add a boring (but collapsable) list
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attributeOverview.push(new Toggleable(
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new Title(key + "=*"),
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new Combine([
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countSummary,
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new List(values)
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])
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))
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}
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const confirm = new CheckBoxes([t.inspectLooksCorrect])
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super([
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new Title(t.inspectDataTitle.Subs({count: geojson.features.length})),
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"Extra remark: An attribute with 'source' or 'src' will be added as 'source' into the map pin; an attribute 'note' will be added into the map pin as well. These values won't be imported",
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...attributeOverview,
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confirm
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]);
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this.Value = new UIEventSource<{ features: { properties: any; geometry: { coordinates: [number, number] } }[] }>(geojson)
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this.IsValid = confirm.GetValue().map(selected => selected.length == 1)
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}
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} |