forked from MapComplete/MapComplete
		
	
		
			
				
	
	
		
			108 lines
		
	
	
	
		
			3.8 KiB
		
	
	
	
		
			Svelte
		
	
	
	
	
	
			
		
		
	
	
			108 lines
		
	
	
	
		
			3.8 KiB
		
	
	
	
		
			Svelte
		
	
	
	
	
	
<script lang="ts">/**
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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: boolean = filteredLayer.isDisplayed.data;
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onDestroy(filteredLayer.isDisplayed.addCallbackAndRunD(d => {
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  isDisplayed = d;
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  return false;
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}));
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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(f => f === 0, [], (b) => b ? 0 : undefined);
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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}>
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    <label class="flex gap-1">
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      <Checkbox selected={filteredLayer.isDisplayed} />
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      <If condition={filteredLayer.isDisplayed}>
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        <ToSvelte construct={() => layer.defaultIcon()?.SetClass("block h-6 w-6")}></ToSvelte>
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        <ToSvelte slot="else" construct={() => layer.defaultIcon()?.SetClass("block h-6 w-6 opacity-50")}></ToSvelte>
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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 condition={filteredLayer.isDisplayed}>
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      <div id="subfilters" class="flex flex-col gap-y-1 mb-4 ml-4">
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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 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={filteredLayer}
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                                    option={filter.options[0]}></FilterviewWithFields>
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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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