forked from MapComplete/MapComplete
		
	
		
			
				
	
	
		
			387 lines
		
	
	
	
		
			14 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			387 lines
		
	
	
	
		
			14 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
import { Utils } from "../../Utils"
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import { FixedInputElement } from "../Input/FixedInputElement"
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import { RadioButton } from "../Input/RadioButton"
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import { VariableUiElement } from "../Base/VariableUIElement"
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import Toggle, { ClickableToggle } from "../Input/Toggle"
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import Combine from "../Base/Combine"
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import Translations from "../i18n/Translations"
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import { Translation } from "../i18n/Translation"
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import Svg from "../../Svg"
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import { ImmutableStore, Store, UIEventSource } from "../../Logic/UIEventSource"
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import BaseUIElement from "../BaseUIElement"
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import FilteredLayer, { FilterState } from "../../Models/FilteredLayer"
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import BackgroundSelector from "./BackgroundSelector"
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import FilterConfig from "../../Models/ThemeConfig/FilterConfig"
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import TilesourceConfig from "../../Models/ThemeConfig/TilesourceConfig"
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import { SubstitutedTranslation } from "../SubstitutedTranslation"
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import ValidatedTextField from "../Input/ValidatedTextField"
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import { QueryParameters } from "../../Logic/Web/QueryParameters"
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import { TagUtils } from "../../Logic/Tags/TagUtils"
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import { InputElement } from "../Input/InputElement"
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import { DropDown } from "../Input/DropDown"
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import { FixedUiElement } from "../Base/FixedUiElement"
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import BaseLayer from "../../Models/BaseLayer"
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import Loc from "../../Models/Loc"
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import { BackToThemeOverview } from "./ActionButtons"
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export default class FilterView extends VariableUiElement {
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    constructor(
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        filteredLayer: Store<FilteredLayer[]>,
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        tileLayers: { config: TilesourceConfig; isDisplayed: UIEventSource<boolean> }[],
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        state: {
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            readonly availableBackgroundLayers?: Store<BaseLayer[]>
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            readonly featureSwitchBackgroundSelection?: UIEventSource<boolean>
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            readonly featureSwitchIsDebugging?: UIEventSource<boolean>
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            readonly locationControl?: UIEventSource<Loc>
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            readonly featureSwitchMoreQuests: Store<boolean>
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        }
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    ) {
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        const backgroundSelector = new Toggle(
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            new BackgroundSelector(state),
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            undefined,
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            state.featureSwitchBackgroundSelection ?? new ImmutableStore(false)
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        )
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        super(
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            filteredLayer.map((filteredLayers) => {
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                // Create the views which toggle layers (and filters them) ...
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                let elements = filteredLayers
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                    ?.map((l) =>
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                        FilterView.createOneFilteredLayerElement(l, state)?.SetClass("filter-panel")
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                    )
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                    ?.filter((l) => l !== undefined)
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                elements[0].SetClass("first-filter-panel")
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                // ... create views for non-interactive layers ...
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                elements = elements.concat(
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                    tileLayers.map((tl) => FilterView.createOverlayToggle(state, tl))
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                )
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                elements.push(
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                    backgroundSelector,
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                    new BackToThemeOverview(state, { imgSize: "h-6 w-6" }).SetClass("block mt-12")
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                )
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                return elements
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            })
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        )
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    }
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    private static createOverlayToggle(
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        state: { locationControl?: UIEventSource<Loc> },
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        config: { config: TilesourceConfig; isDisplayed: UIEventSource<boolean> }
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    ) {
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        const iconStyle = "width:1.5rem;height:1.5rem;margin-left:1.25rem;flex-shrink: 0;"
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        const icon = new Combine([Svg.checkbox_filled]).SetStyle(iconStyle)
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        const iconUnselected = new Combine([Svg.checkbox_empty]).SetStyle(iconStyle)
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        const name: Translation = config.config.name
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        const styledNameChecked = name.Clone().SetStyle("font-size:large").SetClass("ml-2")
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        const styledNameUnChecked = name.Clone().SetStyle("font-size:large").SetClass("ml-2")
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        const zoomStatus = new Toggle(
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            undefined,
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            Translations.t.general.layerSelection.zoomInToSeeThisLayer
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                .SetClass("alert")
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                .SetStyle("display: block ruby;width:min-content;"),
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            state.locationControl?.map((location) => location.zoom >= config.config.minzoom) ??
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                new ImmutableStore(false)
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        )
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        const style = "display:flex;align-items:center;padding:0.5rem 0;"
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        const layerChecked = new Combine([icon, styledNameChecked, zoomStatus])
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            .SetStyle(style)
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            .onClick(() => config.isDisplayed.setData(false))
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        const layerNotChecked = new Combine([iconUnselected, styledNameUnChecked])
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            .SetStyle(style)
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            .onClick(() => config.isDisplayed.setData(true))
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        return new Toggle(layerChecked, layerNotChecked, config.isDisplayed)
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    }
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    private static createOneFilteredLayerElement(
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        filteredLayer: FilteredLayer,
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        state: { featureSwitchIsDebugging?: Store<boolean>; locationControl?: Store<Loc> }
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    ) {
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        if (filteredLayer.layerDef.name === undefined) {
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            // Name is not defined: we hide this one
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            return new Toggle(
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                new FixedUiElement(filteredLayer?.layerDef?.id).SetClass("block"),
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                undefined,
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                state?.featureSwitchIsDebugging ?? new ImmutableStore(false)
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            )
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        }
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        const iconStyle = "width:1.5rem;height:1.5rem;margin-left:1.25rem;flex-shrink: 0;"
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        const icon = new Combine([Svg.checkbox_filled]).SetStyle(iconStyle)
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        const layer = filteredLayer.layerDef
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        const iconUnselected = new Combine([Svg.checkbox_empty]).SetStyle(iconStyle)
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        const name: Translation = filteredLayer.layerDef.name.Clone()
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        const styledNameChecked = name.Clone().SetStyle("font-size:large").SetClass("ml-3")
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        const styledNameUnChecked = name.Clone().SetStyle("font-size:large").SetClass("ml-3")
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        const zoomStatus = new Toggle(
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            undefined,
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            Translations.t.general.layerSelection.zoomInToSeeThisLayer
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                .SetClass("alert")
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                .SetStyle("display: block ruby;width:min-content;"),
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            state?.locationControl?.map(
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                (location) => location.zoom >= filteredLayer.layerDef.minzoom
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            ) ?? new ImmutableStore(false)
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        )
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        const toggleClasses = "layer-toggle flex flex-wrap items-center pt-2 pb-2 px-0"
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        const layerIcon = layer.defaultIcon()?.SetClass("flex-shrink-0 w-8 h-8 ml-2")
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        const layerIconUnchecked = layer
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            .defaultIcon()
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            ?.SetClass("flex-shrink-0 opacity-50  w-8 h-8 ml-2")
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        const layerChecked = new Combine([icon, layerIcon, styledNameChecked, zoomStatus])
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            .SetClass(toggleClasses)
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            .onClick(() => filteredLayer.isDisplayed.setData(false))
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        const layerNotChecked = new Combine([
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            iconUnselected,
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            layerIconUnchecked,
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            styledNameUnChecked,
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        ])
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            .SetClass(toggleClasses)
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            .onClick(() => filteredLayer.isDisplayed.setData(true))
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        const filterPanel: BaseUIElement = new LayerFilterPanel(state, filteredLayer)
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        return new Toggle(
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            new Combine([layerChecked, filterPanel]),
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            layerNotChecked,
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            filteredLayer.isDisplayed
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        )
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    }
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}
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export class LayerFilterPanel extends Combine {
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    public constructor(state: any, flayer: FilteredLayer) {
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        const layer = flayer.layerDef
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        if (layer.filters.length === 0) {
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            super([])
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            return undefined
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        }
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        const toShow: BaseUIElement[] = []
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        for (const filter of layer.filters) {
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            const [ui, actualTags] = LayerFilterPanel.createFilter(state, filter)
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            ui.SetClass("mt-1")
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            toShow.push(ui)
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            actualTags.addCallbackAndRun((tagsToFilterFor) => {
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                flayer.appliedFilters.data.set(filter.id, tagsToFilterFor)
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                flayer.appliedFilters.ping()
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            })
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            flayer.appliedFilters
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                .map((dict) => dict.get(filter.id))
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                .addCallbackAndRun((filters) => actualTags.setData(filters))
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        }
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        super(toShow)
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        this.SetClass("flex flex-col p-2 ml-12 pl-1 pt-0 layer-filters")
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    }
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    // Filter which uses one or more textfields
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    private static createFilterWithFields(
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        state: any,
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        filterConfig: FilterConfig
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    ): [BaseUIElement, UIEventSource<FilterState>] {
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        const filter = filterConfig.options[0]
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        const mappings = new Map<string, BaseUIElement>()
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        let allValid: Store<boolean> = new ImmutableStore(true)
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        var allFields: InputElement<string>[] = []
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        const properties = new UIEventSource<any>({})
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        for (const { name, type } of filter.fields) {
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            const value = QueryParameters.GetQueryParameter(
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                "filter-" + filterConfig.id + "-" + name,
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                "",
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                "Value for filter " + filterConfig.id
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            )
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            const field = ValidatedTextField.ForType(type)
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                .ConstructInputElement({
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                    value,
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                })
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                .SetClass("inline-block")
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            mappings.set(name, field)
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            const stable = value.stabilized(250)
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            stable.addCallbackAndRunD((v) => {
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                properties.data[name] = v.toLowerCase()
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                properties.ping()
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            })
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            allFields.push(field)
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            allValid = allValid.map(
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                (previous) => previous && field.IsValid(stable.data) && stable.data !== "",
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                [stable]
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            )
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        }
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        const tr = new SubstitutedTranslation(
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            filter.question,
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            new UIEventSource<any>({ id: filterConfig.id }),
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            state,
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            mappings
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        )
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        const trigger: Store<FilterState> = allValid.map(
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            (isValid) => {
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                if (!isValid) {
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                    return undefined
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                }
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                const props = properties.data
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                // Replace all the field occurences in the tags...
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                const tagsSpec = Utils.WalkJson(filter.originalTagsSpec, (v) => {
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                    if (typeof v !== "string") {
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                        return v
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                    }
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                    for (const key in props) {
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                        v = (<string>v).replace("{" + key + "}", props[key])
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                    }
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                    return v
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                })
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                const tagsFilter = TagUtils.Tag(tagsSpec)
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                return {
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                    currentFilter: tagsFilter,
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                    state: JSON.stringify(props),
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                }
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            },
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            [properties]
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        )
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        const settableFilter = new UIEventSource<FilterState>(undefined)
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        trigger.addCallbackAndRun((state) => settableFilter.setData(state))
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        settableFilter.addCallback((state) => {
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            if (state === undefined) {
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                // still initializing
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                return
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            }
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            if (state.currentFilter === undefined) {
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                allFields.forEach((f) => f.GetValue().setData(undefined))
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            }
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        })
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        return [tr, settableFilter]
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    }
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    private static createCheckboxFilter(
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        filterConfig: FilterConfig
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    ): [BaseUIElement, UIEventSource<FilterState>] {
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        let option = filterConfig.options[0]
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        const icon = Svg.checkbox_filled_svg().SetClass("block mr-2 w-6")
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        const iconUnselected = Svg.checkbox_empty_svg().SetClass("block mr-2 w-6")
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        const qp = QueryParameters.GetBooleanQueryParameter(
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            "filter-" + filterConfig.id,
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            false,
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            "Is filter '" + filterConfig.options[0].question.textFor("en") + " enabled?"
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        )
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        const toggle = new ClickableToggle(
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            new Combine([icon, option.question.Clone().SetClass("block")]).SetClass("flex"),
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            new Combine([iconUnselected, option.question.Clone().SetClass("block")]).SetClass(
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                "flex"
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            ),
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            qp
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        )
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            .ToggleOnClick()
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            .SetClass("block m-1")
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        return [
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            toggle,
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            toggle.isEnabled.sync(
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                (enabled) =>
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                    enabled
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                        ? {
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                              currentFilter: option.osmTags,
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                              state: "true",
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                          }
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                        : undefined,
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                [],
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                (f) => f !== undefined
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            ),
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        ]
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    }
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    private static createMultiFilter(
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        filterConfig: FilterConfig
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    ): [BaseUIElement, UIEventSource<FilterState>] {
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        let options = filterConfig.options
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        const values: FilterState[] = options.map((f, i) => ({
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            currentFilter: f.osmTags,
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            state: i,
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        }))
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        let filterPicker: InputElement<number>
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        const value = QueryParameters.GetQueryParameter(
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            "filter-" + filterConfig.id,
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            "0",
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            "Value for filter " + filterConfig.id
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        ).sync(
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            (str) => Number(str),
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            [],
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            (n) => "" + n
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        )
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        if (options.length <= 6) {
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            filterPicker = new RadioButton(
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                options.map(
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                    (option, i) =>
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                        new FixedInputElement(option.question.Clone().SetClass("block"), i)
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                ),
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                {
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                    value,
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                    dontStyle: true,
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                }
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            )
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        } else {
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            filterPicker = new DropDown(
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                "",
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                options.map((option, i) => ({
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                    value: i,
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                    shown: option.question.Clone(),
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                })),
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                value
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            )
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        }
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        return [
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            filterPicker,
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            filterPicker.GetValue().sync(
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                (i) => values[i],
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                [],
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                (selected) => {
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                    const v = selected?.state
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                    if (v === undefined || typeof v === "string") {
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                        return undefined
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                    }
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                    return v
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                }
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            ),
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        ]
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    }
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    private static createFilter(
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        state: {},
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        filterConfig: FilterConfig
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    ): [BaseUIElement, UIEventSource<FilterState>] {
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        if (filterConfig.options[0].fields.length > 0) {
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            return LayerFilterPanel.createFilterWithFields(state, filterConfig)
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        }
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        if (filterConfig.options.length === 1) {
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            return LayerFilterPanel.createCheckboxFilter(filterConfig)
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        }
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        const filter = LayerFilterPanel.createMultiFilter(filterConfig)
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        filter[0].SetClass("pl-2")
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        return filter
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    }
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}
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