110 lines
3.9 KiB
Svelte
110 lines
3.9 KiB
Svelte
<script lang="ts">
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/**
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* The FilterView shows the various options to enable/disable a single layer or to only show a subset of the data.
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*/
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import type FilteredLayer from "../../Models/FilteredLayer"
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import LayerConfig from "../../Models/ThemeConfig/LayerConfig"
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import ToSvelte from "../Base/ToSvelte.svelte"
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import Checkbox from "../Base/Checkbox.svelte"
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import FilterConfig from "../../Models/ThemeConfig/FilterConfig"
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import type { Writable } from "svelte/store"
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import If from "../Base/If.svelte"
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import Dropdown from "../Base/Dropdown.svelte"
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import { onDestroy } from "svelte"
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import { ImmutableStore, Store } from "../../Logic/UIEventSource"
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import FilterviewWithFields from "./FilterviewWithFields.svelte"
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import Tr from "../Base/Tr.svelte"
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import Translations from "../i18n/Translations"
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export let filteredLayer: FilteredLayer
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export let highlightedLayer: Store<string | undefined> = new ImmutableStore(undefined)
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export let zoomlevel: Store<number> = new ImmutableStore(22)
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let layer: LayerConfig = filteredLayer.layerDef
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let isDisplayed: Store<boolean> = filteredLayer.isDisplayed
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/**
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* Gets a UIEventSource as boolean for the given option, to be used with a checkbox
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*/
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function getBooleanStateFor(option: FilterConfig): Writable<boolean> {
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const state = filteredLayer.appliedFilters.get(option.id)
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return state.sync(
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(f) => f === 0,
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[],
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(b) => (b ? 0 : undefined)
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)
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}
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/**
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* Gets a UIEventSource as number for the given option, to be used with a dropdown or radiobutton
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*/
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function getStateFor(option: FilterConfig): Writable<number> {
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return filteredLayer.appliedFilters.get(option.id)
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}
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let mainElem: HTMLElement
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$: onDestroy(
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highlightedLayer.addCallbackAndRun((highlightedLayer) => {
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if (highlightedLayer === filteredLayer.layerDef.id) {
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mainElem?.classList?.add("glowing-shadow")
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} else {
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mainElem?.classList?.remove("glowing-shadow")
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}
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})
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)
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</script>
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{#if filteredLayer.layerDef.name}
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<div bind:this={mainElem} class="mb-1.5">
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<label class="no-image-background flex gap-1">
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<Checkbox selected={isDisplayed} />
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<If condition={filteredLayer.isDisplayed}>
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<ToSvelte
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construct={() => layer.defaultIcon()?.SetClass("block h-6 w-6 no-image-background")}
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/>
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<ToSvelte
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slot="else"
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construct={() =>
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layer.defaultIcon()?.SetClass("block h-6 w-6 no-image-background opacity-50")}
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/>
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</If>
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{filteredLayer.layerDef.name}
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{#if $zoomlevel < layer.minzoom}
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<span class="alert">
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<Tr t={Translations.t.general.layerSelection.zoomInToSeeThisLayer} />
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</span>
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{/if}
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</label>
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{#if $isDisplayed && filteredLayer.layerDef.filters?.length > 0}
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<div id="subfilters" class="ml-4 flex flex-col gap-y-1">
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{#each filteredLayer.layerDef.filters as filter}
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<div>
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<!-- There are three (and a half) modes of filters: a single checkbox, a radio button/dropdown or with searchable fields -->
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{#if filter.options.length === 1 && filter.options[0].fields.length === 0}
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<label>
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<Checkbox selected={getBooleanStateFor(filter)} />
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{filter.options[0].question}
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</label>
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{/if}
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{#if filter.options.length === 1 && filter.options[0].fields.length > 0}
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<FilterviewWithFields id={filter.id} {filteredLayer} option={filter.options[0]} />
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{/if}
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{#if filter.options.length > 1}
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<Dropdown value={getStateFor(filter)}>
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{#each filter.options as option, i}
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<option value={i}>
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{option.question}
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</option>
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{/each}
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</Dropdown>
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{/if}
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</div>
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{/each}
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</div>
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{/if}
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</div>
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{/if}
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