forked from MapComplete/MapComplete
		
	
		
			
				
	
	
		
			88 lines
		
	
	
	
		
			3.1 KiB
		
	
	
	
		
			Svelte
		
	
	
	
	
	
			
		
		
	
	
			88 lines
		
	
	
	
		
			3.1 KiB
		
	
	
	
		
			Svelte
		
	
	
	
	
	
<script lang="ts">
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  import { Store, UIEventSource } from "../../Logic/UIEventSource"
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  import type { RasterLayerPolygon } from "../../Models/RasterLayers"
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  import { AvailableRasterLayers } from "../../Models/RasterLayers"
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  import { createEventDispatcher, onDestroy } from "svelte"
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  import Svg from "../../Svg"
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  import { Map as MlMap } from "maplibre-gl"
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  import type { MapProperties } from "../../Models/MapProperties"
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  import OverlayMap from "../Map/OverlayMap.svelte"
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  import RasterLayerPicker from "../Map/RasterLayerPicker.svelte"
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  export let mapproperties: MapProperties
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  export let normalMap: UIEventSource<MlMap>
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  /**
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   * The current background (raster) layer of the polygon.
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   * This is undefined if a vector layer is used
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   */
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  let rasterLayer: UIEventSource<RasterLayerPolygon | undefined> = mapproperties.rasterLayer
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  let name = rasterLayer.data?.properties?.name
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  let icon = Svg.satellite_svg()
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  onDestroy(
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    rasterLayer.addCallback((polygon) => {
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      name = polygon.properties?.name
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    })
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  )
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  /**
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   * The layers that this component can offer as a choice.
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   */
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  export let availableRasterLayers: Store<RasterLayerPolygon[]>
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  let raster0 = new UIEventSource<RasterLayerPolygon>(undefined)
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  let raster1 = new UIEventSource<RasterLayerPolygon>(undefined)
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  let currentLayer: RasterLayerPolygon
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  function updatedAltLayer() {
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    const available = availableRasterLayers.data
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    const current = rasterLayer.data
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    const defaultLayer = AvailableRasterLayers.maplibre
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    const firstOther = available.find((l) => l !== defaultLayer)
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    const secondOther = available.find((l) => l !== defaultLayer && l !== firstOther)
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    raster0.setData(firstOther === current ? defaultLayer : firstOther)
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    raster1.setData(secondOther === current ? defaultLayer : secondOther)
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  }
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  updatedAltLayer()
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  onDestroy(mapproperties.rasterLayer.addCallbackAndRunD(updatedAltLayer))
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  onDestroy(availableRasterLayers.addCallbackAndRunD(updatedAltLayer))
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  function use(rasterLayer: UIEventSource<RasterLayerPolygon>): () => void {
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    return () => {
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      currentLayer = undefined
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      mapproperties.rasterLayer.setData(rasterLayer.data)
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    }
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  }
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  const dispatch = createEventDispatcher<{ copyright_clicked }>()
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</script>
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<div class="flex items-end opacity-50 hover:opacity-100">
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  <div class="flex flex-col md:flex-row">
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    <button class="m-0 h-12 w-16 overflow-hidden p-0 md:h-16 md:w-16" on:click={use(raster0)}>
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      <OverlayMap
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        placedOverMap={normalMap}
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        placedOverMapProperties={mapproperties}
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        rasterLayer={raster0}
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      />
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    </button>
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    <button class="m-0 h-12 w-16 overflow-hidden p-0 md:h-16 md:w-16" on:click={use(raster1)}>
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      <OverlayMap
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        placedOverMap={normalMap}
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        placedOverMapProperties={mapproperties}
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        rasterLayer={raster1}
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      />
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    </button>
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  </div>
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  <div class="ml-1 flex h-fit flex-col gap-y-1 text-sm">
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    <div class="low-interaction w-64 rounded p-1">
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      <RasterLayerPicker
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        availableLayers={availableRasterLayers}
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        value={mapproperties.rasterLayer}
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      />
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    </div>
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    <button class="small" on:click={() => dispatch("copyright_clicked")}>© OpenStreetMap</button>
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  </div>
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</div>
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