leaflet#Control TypeScript Examples

/**
 * Leaflet map control providing a button for copying a link for the current map view to the clipboard
 */
export class LinkControl extends Control {
	declare options: ControlOptions

	constructor(options: ControlOptions) {
		super(options);
	}

	onAdd() {
		const store = useStore(),
			linkButton = DomUtil.create('button',
				'leaflet-control-button leaflet-control-link') as HTMLButtonElement,
			copySuccessMessage = computed(() => store.state.messages.copyToClipboardSuccess),
			copyErrorMessage = computed(() => store.state.messages.copyToClipboardError);

		linkButton.type = 'button';
		linkButton.title = store.state.messages.linkTitle;
		linkButton.innerHTML = `
		<svg class="svg-icon" aria-hidden="true">
		  <use xlink:href="#icon--link" />
		</svg>`;

		linkButton.addEventListener('click', e => {
			e.preventDefault();
			toClipboard(window.location.href.split("#")[0] + store.getters.url).then(() => {
				notify(copySuccessMessage.value);
			}).catch((e) => {
				notify({ type: 'error', text: copyErrorMessage.value });
				console.error('Error copying to clipboard', e);
			});

		});

		return linkButton;
	}
}

/**
 * Leaflet map control which displays an arbitrary image or text with an optional link
 * Intended for use for dynmap logo components
 */
export class LogoControl extends Control {
	declare options: LogoControlOptions;

	constructor(options: LogoControlOptions) {
		super(options);
	}

	onAdd() {
		const container = DomUtil.create('div', 'leaflet-control-logo');
		let link;

		if (this.options.url) {
			link = DomUtil.create('a', '', container) as HTMLAnchorElement;
			link.href = this.options.url;
			link.setAttribute('aria-label', this.options.text);
		}

		if (this.options.image) {
			const image = DomUtil.create('img', '', link) as HTMLImageElement;
			image.src = this.options.image;
			image.alt = this.options.text;
		} else {
			container.textContent = this.options.text;
		}

		return container;
	}
}

private updateLayersControl(): void {
        if (this.layerControl) {
            this.layerControl.remove();
        }

        const overlays = {} as any;

        for (const x of this.layers) {
            if (x[1].layer) {
                overlays[x[1].label] = x[1].layer;
            }
        }

        this.layerControl = control.layers(
            this.baseLayers,
            overlays,
        );
        this.map?.addControl(this.layerControl);
    }

/**
 * Leaflet map control providing a chat button which opens the chatbox on click
 */
export class ChatControl extends Control {
	declare options: ControlOptions

	constructor(options: ControlOptions) {
		super(options);
	}

	onAdd() {
		const store = useStore(),
			chatButton = DomUtil.create('button',
				'leaflet-control-bottom leaflet-control-button leaflet-control-chat') as HTMLButtonElement;

		chatButton.type = 'button';
		chatButton.title = store.state.messages.chatTitle;
		chatButton.innerHTML = `
		<svg class="svg-icon">
		  <use xlink:href="#icon--chat" />
		</svg>`;

		chatButton.addEventListener('click', e => {
			store.commit(MutationTypes.TOGGLE_UI_ELEMENT_VISIBILITY, 'chat');
			e.stopPropagation();
			e.preventDefault();
		});

		//Open chat on ArrowRight from button
		DomEvent.on(chatButton,'keydown', (e: Event) => {
			if((e as KeyboardEvent).key === 'ArrowRight') {
				store.commit(MutationTypes.SET_UI_ELEMENT_VISIBILITY, {element: 'chat', state: true});
			}
		});

		watch(store.state.ui.visibleElements, (newValue) => {
			chatButton.setAttribute('aria-expanded', newValue.has('chat').toString());
		});

		return chatButton;
	}
}

public baseLayers?: Control.LayersObject;

private layerControl?: Control;

/**
 * Leaflet map control providing a clock which can display the current in-game time of day and weather
 */
export class ClockControl extends Control {
	declare options: ClockControlOptions;
	declare _container?: HTMLElement;

	private _sun?: HTMLElement;
	private _moon?: HTMLElement;
	private _clock?: HTMLElement;
	private _currentMoonIcon?: string;
	private _currentSunIcon?: string;
	private _unwatchHandler?: Function;

	constructor(options: ClockControlOptions) {
		super(Object.assign(options, {position: 'topcenter'}));

		Util.setOptions(this, options);
	}

	onAdd() {
		const digital = !this.options.showTimeOfDay && !this.options.showWeather && this.options.showDigitalClock,
			worldState = useStore().state.currentWorldState;

		this._container = DomUtil.create('div', 'clock' + (digital ? ' clock--digital' : ''));
		this._sun = DomUtil.create('div', 'clock__sun', this._container);
		this._moon = DomUtil.create('div', 'clock__moon', this._container);

		this._sun.style.transform = 'translate(-150px, -150px)';
		this._moon.style.transform = 'translate(-150px, -150px)';

		this._sun!.innerHTML = `
		<svg class="svg-icon" aria-hidden="true">
	  		<use xlink:href="#icon--clock_sun" />
		</svg>`;
		this._moon!.innerHTML = `
		<svg class="svg-icon" aria-hidden="true">
	  		<use xlink:href="#icon--clock_moon" />
		</svg>`;

		if (this.options.showDigitalClock) {
			this._clock = DomUtil.create('div', 'clock__time', this._container)
		}

		this._unwatchHandler = watch(worldState, (newValue) => {
			this._update(newValue);
		}, { deep: true });

		return this._container;
	}

	onRemove() {
		if(this._unwatchHandler) {
			this._unwatchHandler();
		}
	}

	_update(worldState: LiveAtlasWorldState) {
		const timeOfDay = worldState.timeOfDay;
		let sunAngle;

		if (timeOfDay > 23100 || timeOfDay < 12900) {
			//day mode
			let movedTime = timeOfDay + 900;
			movedTime = (movedTime >= 24000) ? movedTime - 24000 : movedTime;
			//Now we have 0 -> 13800 for the day period
			//Divide by 13800*2=27600 instead of 24000 to compress day
			sunAngle = ((movedTime) / 27600 * 2 * Math.PI);
		} else {
			//night mode
			const movedTime = timeOfDay - 12900;
			//Now we have 0 -> 10200 for the night period
			//Divide by 10200*2=20400 instead of 24000 to expand night
			sunAngle = Math.PI + ((movedTime) / 20400 * 2 * Math.PI);
		}

		const moonAngle = sunAngle + Math.PI;

		if (timeOfDay >= 0) {
			this._sun!.style.transform = 'translate(' + Math.round(-50 * Math.cos(sunAngle)) + 'px, ' + Math.round(-50 * Math.sin(sunAngle)) + 'px)';
			this._moon!.style.transform = 'translate(' + Math.round(-50 * Math.cos(moonAngle)) + 'px, ' + Math.round(-50 * Math.sin(moonAngle)) + 'px)';
		} else {
			this._sun!.style.transform = 'translate(-150px, -150px)';
			this._moon!.style.transform = 'translate(-150px, -150px)';
		}

		const minecraftTime = getMinecraftTime(timeOfDay);

		if (this.options.showDigitalClock) {
			if (timeOfDay >= 0) {
				this._clock!.classList.remove(minecraftTime.night ? 'day' : 'night');
				this._clock!.classList.add(minecraftTime.day ? 'day' : 'night');
				this._clock!.textContent = [
					minecraftTime.hours.toString().padStart(2, '0'),
					minecraftTime.minutes.toString().padStart(2, '0')
				].join(':');
			} else {
				this._clock!.classList.remove(minecraftTime.night ? 'day' : 'night');
				this._clock!.textContent = '';
			}
		}

		if (this.options.showWeather) {
			if (worldState.thundering) {
				this._setSunIcon('clock_sun_storm');
				this._setMoonIcon('clock_moon_storm');
			} else if (worldState.raining) {
				this._setSunIcon('clock_sun_rain');
				this._setMoonIcon('clock_moon_rain');
			} else {
				this._setSunIcon('clock_sun');
				this._setMoonIcon('clock_moon');
			}
		}
	}

	_setSunIcon(icon: string) {
		if(this._sun && this._currentSunIcon !== icon) {
			this._sun!.innerHTML = `
				<svg class="svg-icon" aria-hidden="true">
					<use xlink:href="#icon--${icon}" />
				</svg>`;
			this._currentSunIcon = icon;
		}
	}

	_setMoonIcon(icon: string) {
		if(this._moon && this._currentMoonIcon !== icon) {
			this._moon!.innerHTML = `
				<svg class="svg-icon" aria-hidden="true">
					<use xlink:href="#icon--${icon}" />
				</svg>`;
			this._currentMoonIcon = icon;
		}
	}
}

/**
 * Leaflet map control which displays in-game block coordinates when hovering over or tapping the map
 */
export class CoordinatesControl extends Control {
	declare options: CoordinatesControlOptions;
	declare _map ?: Map;

	private _location?: Coordinate;
	private _locationChanged: boolean = false;
	private readonly _coordsContainer: HTMLSpanElement;
	private readonly _regionContainer: HTMLSpanElement;
	private readonly _chunkContainer: HTMLSpanElement;

	constructor(options: CoordinatesControlOptions) {
		super(options);

		this._coordsContainer = DomUtil.create('span', 'value coordinates');
		this._chunkContainer = DomUtil.create('span', 'value chunk');
		this._regionContainer = DomUtil.create('span', 'value region');

		options.position = 'bottomleft';
		Util.setOptions(this, options);
	}

	onAdd(map: Map) {
		const container = DomUtil.create('div', 'leaflet-control-coordinates');

		this._coordsContainer.textContent = this.options.showY ? '-----, ---, -----' : '-----, -----';
		this._coordsContainer.dataset.label = this.options.label;
		container.appendChild(this._coordsContainer);

		if (this.options.showRegion) {
			this._regionContainer.textContent = '--------------';
			this._regionContainer.dataset.label = store.state.messages.locationRegion;
			container.appendChild(this._regionContainer);
		}

		if (this.options.showChunk) {
			this._chunkContainer.textContent = '----, ----';
			this._chunkContainer.dataset.label = store.state.messages.locationChunk;
			container.appendChild(this._chunkContainer);
		}

		map.on('mousemove', this._onMouseMove, this);
		map.on('mouseout', this._onMouseOut, this);

		return container;
	}

	remove() {
		if (!this._map) {
			return this;
		}

		this._map.off('mousemove', this._onMouseMove, this);
		this._map.off('mouseout', this._onMouseOut, this);
		super.remove();

		return this;
	}

	_onMouseMove(event: LeafletMouseEvent) {
		if (!this._map || !store.state.currentMap) {
			return;
		}

		this._location = store.state.currentMap.latLngToLocation(event.latlng, store.state.currentWorld!.seaLevel + 1);

		if(!this._locationChanged) {
			this._locationChanged = true;
			requestAnimationFrame(() => this._update());
		}
	}

	_onMouseOut() {
		if (!this._map) {
			return;
		}

		this._location = undefined;

		if(!this._locationChanged) {
			this._locationChanged = true;
			requestAnimationFrame(() => this._update());
		}
	}

	_update() {
		if (!this._map || !store.state.currentWorld || !this._locationChanged) {
			return;
		}

		this._locationChanged = false;

		if(!this._location) {
			if (this.options.showY) {
				this._coordsContainer.textContent = '-----, ---, -----';
			} else {
				this._coordsContainer.textContent = '-----, -----';
			}

			if (this.options.showRegion) {
				this._regionContainer.textContent = '--------------';
			}

			if (this.options.showChunk) {
				this._chunkContainer.textContent = '----, ----';
			}

			return;
		}

		const x = Math.round(this._location.x).toString().padStart(5, ' '),
			y = this._location.y.toString().padStart(3, ' '),
			z = Math.round(this._location.z).toString().padStart(5, ' '),
			regionX = Math.floor(this._location.x / 512).toString().padStart(3, ' '),
			regionZ = Math.floor(this._location.z / 512).toString().padStart(3, ' '),
			chunkX = Math.floor(this._location.x / 16).toString().padStart(4, ' '),
			chunkZ = Math.floor(this._location.z / 16).toString().padStart(4, ' ');

		if (this.options.showY) {
			this._coordsContainer.textContent = `${x}, ${y}, ${z}`;
		} else {
			this._coordsContainer.textContent = `${x}, ${z}`;
		}

		if (this.options.showRegion) {
			this._regionContainer.textContent = `r.${regionX}, ${regionZ}.mca`;
		}

		if (this.options.showChunk) {
			this._chunkContainer.textContent = `${chunkX}, ${chunkZ}`;
		}
	}
}

/**
 * Extension of leaflet's standard {@link Control.Layers}
 * Sorts layers by position, adds additional keyboard navigation, adjusts to viewport size and tracks expanded state in vuex
 */
export class LiveAtlasLayerControl extends Control.Layers {
	declare _map ?: LeafletMap;
	declare _overlaysList?: HTMLElement;
	declare _baseLayersList?: HTMLElement;
	declare _layerControlInputs?: HTMLElement[];
	declare _container?: HTMLElement;
	declare _section?: HTMLElement;
	declare _separator?: HTMLElement;

	private _layersButton?: HTMLElement;
	private _layerPositions: Map<Layer, number>;
	private visible: boolean = false;

	constructor(baseLayers?: LayersObject, overlays?: LayersObject, options?: LayersOptions) {
		// noinspection JSUnusedGlobalSymbols
		super(baseLayers, overlays, Object.assign(options, {
			sortLayers: true,
			sortFunction: (layer1: Layer, layer2: Layer, name1: string, name2: string) => {
				const priority1 = this._layerPositions.get(layer1) || 0,
					priority2 = this._layerPositions.get(layer2) || 0;

				if(priority1 !== priority2) {
					return priority1 - priority2;
				}

				return ((name1 < name2) ? -1 : ((name1 > name2) ? 1 : 0));
			}
		}));
		this._layerPositions = new Map<Layer, number>();
	}

	hasLayer(layer: Layer): boolean {
		// @ts-ignore
		return !!super._getLayer(Util.stamp(layer));
	}

	expand() {
		this._layersButton!.setAttribute('aria-expanded', 'true');
		this._section!.style.display = '';
		this.handleResize();

		const firstCheckbox = this._container!.querySelector('input');

		if(firstCheckbox) {
			(firstCheckbox as HTMLElement).focus();
		}

		// @ts-ignore
		super._checkDisabledLayers();
		return this;
	}

	collapse() {
		this._layersButton!.setAttribute('aria-expanded', 'false');
		this._section!.style.display = 'none';

		return this;
	}

	_initLayout() {
		const className = 'leaflet-control-layers',
			container = this._container = DomUtil.create('div', className),
			section = this._section = DomUtil.create('section', className + '-list'),
			button = this._layersButton = DomUtil.create('button', className + '-toggle', container);

		DomEvent.disableClickPropagation(container);
		DomEvent.disableScrollPropagation(container);

		//Open layer list on ArrowRight from button
		DomEvent.on(button,'keydown', (e: Event) => {
			if((e as KeyboardEvent).key === 'ArrowRight') {
				store.commit(MutationTypes.SET_UI_ELEMENT_VISIBILITY, {element: 'layers', state: true});
			}
		});

		DomEvent.on(container, 'keydown', (e: Event) => {
			//Close layer list on ArrowLeft from within list
			if((e as KeyboardEvent).key === 'ArrowLeft') {
				e.preventDefault();
				store.commit(MutationTypes.SET_UI_ELEMENT_VISIBILITY, {element: 'layers', state: false});
				nextTick(() => button.focus());
			}

			const elements = Array.from(container.querySelectorAll('input')) as HTMLElement[];
			handleKeyboardEvent(e as KeyboardEvent, elements);
		});
		DomEvent.on(button,'click', () => store.commit(MutationTypes.TOGGLE_UI_ELEMENT_VISIBILITY, 'layers'));

		section.style.display = 'none';

		button.title = store.state.messages.layersTitle;
		button.setAttribute('aria-expanded', 'false');
		button.innerHTML = `
			<svg class="svg-icon" aria-hidden="true">
			  <use xlink:href="#icon--layers" />
			</svg>`;


		//Use vuex track expanded state
		watch(store.state.ui.visibleElements, (newValue) => {
			if(newValue.has('layers') && !this.visible) {
				this.expand();
			} else if(this.visible && !newValue.has('layers')) {
				this.collapse();
			}

			this.visible = store.state.ui.visibleElements.has('layers');
		});

		watch(store.state.messages, (newValue) => (button.title = newValue.layersTitle));//

		this.visible = store.state.ui.visibleElements.has('layers');

		if (this.visible) {
			this.expand();
		}

		this._baseLayersList = DomUtil.create('div', className + '-base', section);
		this._separator = DomUtil.create('div', className + '-separator', section);
		this._overlaysList = DomUtil.create('div', className + '-overlays', section);

		container.appendChild(section);

		window.addEventListener('resize', () => this.handleResize());
		this.handleResize();
	}

	handleResize() {
		const y = this._layersButton!.getBoundingClientRect().y;

		//Limit height to remaining vertical space
		// Including 30px element padding, 10px padding from edge of viewport, and 55px padding to avoid covering bottom bar
		this._section!.style.maxHeight = `calc(100vh - ${(y + 30 + 10 + 55)}px)`;
	}

	addOverlayAtPosition(layer: Layer, name: string, position: number): this {
		this._layerPositions.set(layer, position);
		return super.addOverlay(layer, name);
	}

	addOverlay(layer: Layer, name: string): this {
		this._layerPositions.set(layer, 0);
		return super.addOverlay(layer, name);
	}

	removeLayer(layer: Layer): this {
		this._layerPositions.delete(layer);
		return super.removeLayer(layer);
	}

	// noinspection JSUnusedGlobalSymbols
	_addItem(obj: any) {
		const container = obj.overlay ? this._overlaysList : this._baseLayersList,
			item = document.createElement('label'),
			label = document.createElement('span'),
			checked = this._map!.hasLayer(obj.layer);

		let input;

		item.className = 'layer checkbox';

		if (obj.overlay) {
			input = document.createElement('input');
			input.type = 'checkbox';
			input.className = 'leaflet-control-layers-selector';
			input.defaultChecked = checked;
		} else {
			// @ts-ignore
			input = super._createRadioElement('leaflet-base-layers_' + Util.stamp(this), checked);
		}

		input.layerId = Util.stamp(obj.layer);
		this._layerControlInputs!.push(input);
		label.textContent = obj.name;

		// @ts-ignore
		DomEvent.on(input, 'click', (e: LeafletEvent) => super._onInputClick(e), this);

		item.appendChild(input);
		item.insertAdjacentHTML('beforeend',  `
		<svg class="svg-icon" aria-hidden="true">
	  		<use xlink:href="#icon--checkbox" />
		</svg>`);
		item.appendChild(label);

		container!.appendChild(item);

		// @ts-ignore
		super._checkDisabledLayers();
		return label;
	}

	onRemove(map: LeafletMap) {
		this._layerControlInputs = [];

		(super.onRemove as Function)(map);
	}
}

/**
 * Leaflet map control which displays a loading spinner when any tiles are loading
 */
export class LoadingControl extends Control {
	declare options: LoadingControlOptions;

	private _dataLoaders: Set<number> = new Set();
	private readonly _loadingIndicator: HTMLDivElement;
	private _delayIndicatorTimeout: null | ReturnType<typeof setTimeout> = null;

	constructor(options: LoadingControlOptions) {
		super(options);

		this._loadingIndicator = DomUtil.create('div',
			'leaflet-control-button leaflet-control-loading') as HTMLDivElement;
	}

	onAdd(map: Map) {
		this._loadingIndicator.title = useStore().state.messages.loadingTitle;
		this._loadingIndicator.hidden = true;
		this._loadingIndicator.innerHTML = `
		<svg class="svg-icon">
		  <use xlink:href="#icon--loading" />
		</svg>`;

		this._addLayerListeners(map);
		this._addMapListeners(map);

		return this._loadingIndicator;
	}

	onRemove(map: Map) {
		this._removeLayerListeners(map);
		this._removeMapListeners(map);
	}

	addLoader(id: number) {
		this._dataLoaders.add(id);

		if (this.options.delayIndicator && !this._delayIndicatorTimeout) {
			// If we are delaying showing the indicator and we're not
			// already waiting for that delay, set up a timeout.
			this._delayIndicatorTimeout = setTimeout(() => {
				this.updateIndicator();
				this._delayIndicatorTimeout = null;
			}, this.options.delayIndicator);
		} else {
			// Otherwise show the indicator immediately
			this.updateIndicator();
		}
	}

	removeLoader(id: number) {
		this._dataLoaders.delete(id);
		this.updateIndicator();

		// If removing this loader means we're in no danger of loading,
		// clear the timeout. This prevents old delays from instantly
		// triggering the indicator.
		if (this.options.delayIndicator && this._delayIndicatorTimeout && !this.isLoading()) {
			clearTimeout(this._delayIndicatorTimeout);
			this._delayIndicatorTimeout = null;
		}
	}

	updateIndicator() {
		if (this.isLoading()) {
			this._showIndicator();
		}
		else {
			this._hideIndicator();
		}
	}

	isLoading() {
		return this._countLoaders() > 0;
	}

	_countLoaders() {
		return this._dataLoaders.size;
	}

	_showIndicator() {
		this._loadingIndicator.hidden = false;
	}

	_hideIndicator() {
		this._loadingIndicator.hidden = true;
	}

	_handleLoading(e: LeafletEvent) {
		this.addLoader(this.getEventId(e));
	}

	_handleBaseLayerChange (e: LeafletEvent) {
		// Check for a target 'layer' that contains multiple layers, such as
		// L.LayerGroup. This will happen if you have an L.LayerGroup in an
		// L.Control.Layers.
		if (e.layer && e.layer.eachLayer && typeof e.layer.eachLayer === 'function') {
			e.layer.eachLayer((layer: Layer) => {
				this._handleBaseLayerChange({ layer: layer } as LeafletEvent);
			});
		}
	}

	_handleLoad(e: LeafletEvent) {
		this.removeLoader(this.getEventId(e));
	}

	getEventId(e: any) {
		if (e.id) {
			return e.id;
		} else if (e.layer) {
			return e.layer._leaflet_id;
		}
		return e.target._leaflet_id;
	}

	_layerAdd(e: LeafletEvent) {
		if(!(e.layer instanceof TileLayer)) {
			return;
		}

		try {
			if(e.layer.isLoading()) {
				this.addLoader((e.layer as any)._leaflet_id);
			}

			e.layer.on('loading', this._handleLoading, this);
			e.layer.on('load', this._handleLoad, this);
		} catch (exception) {
			console.warn('L.Control.Loading: Tried and failed to add ' +
				' event handlers to layer', e.layer);
			console.warn('L.Control.Loading: Full details', exception);
		}
	}

	_layerRemove(e: LeafletEvent) {
		if(!(e.layer instanceof TileLayer)) {
			return;
		}

		try {
			e.layer.off('loading', this._handleLoading, this);
			e.layer.off('load', this._handleLoad, this);
		} catch (exception) {
			console.warn('L.Control.Loading: Tried and failed to remove ' +
				'event handlers from layer', e.layer);
			console.warn('L.Control.Loading: Full details', exception);
		}
	}

	_addLayerListeners(map: Map) {
		// Add listeners for begin and end of load to any layers already
		// on the map
		map.eachLayer((layer: Layer) => {
			if(!(layer instanceof TileLayer)) {
				return;
			}

			if(layer.isLoading()) {
				this.addLoader((layer as any)._leaflet_id);
			}

			layer.on('loading', this._handleLoading, this);
			layer.on('load', this._handleLoad, this);
		});

		// When a layer is added to the map, add listeners for begin and
		// end of load
		map.on('layeradd', this._layerAdd, this);
		map.on('layerremove', this._layerRemove, this);
	}

	_removeLayerListeners(map: Map) {
		// Remove listeners for begin and end of load from all layers
		map.eachLayer((layer: Layer) => {
			if(!(layer instanceof TileLayer)) {
				return;
			}

			this.removeLoader((layer as any)._leaflet_id);

			layer.off('loading', this._handleLoading, this);
			layer.off('load', this._handleLoad, this);
		});

		// Remove layeradd/layerremove listener from map
		map.off('layeradd', this._layerAdd, this);
		map.off('layerremove', this._layerRemove, this);
	}

	_addMapListeners(map: Map) {
		// Add listeners to the map for (custom) dataloading and dataload
		// events, eg, for AJAX calls that affect the map but will not be
		// reflected in the above layer events.
		map.on('baselayerchange', this._handleBaseLayerChange, this);
		map.on('dataloading', this._handleLoading, this);
		map.on('dataload', this._handleLoad, this);
		map.on('layerremove', this._handleLoad, this);
	}

	_removeMapListeners(map: Map) {
		map.off('baselayerchange', this._handleBaseLayerChange, this);
		map.off('dataloading', this._handleLoading, this);
		map.off('dataload', this._handleLoad, this);
		map.off('layerremove', this._handleLoad, this);
	}
}

/**
 * Leaflet map control providing a login/logout button which opens the login modal/logs out on click
 */
export class LoginControl extends Control {
	declare _map: LiveAtlasLeafletMap;
	declare options: ControlOptions;

	private readonly store = useStore();
	private readonly loggedIn = computed(() => this.store.state.loggedIn);
	private readonly _button: HTMLButtonElement;

	constructor(options: ControlOptions) {
		super(options);

		this._button = DomUtil.create('button',
				'leaflet-control-bottom leaflet-control-button leaflet-control-login') as HTMLButtonElement;

		this._button.type = 'button';

		this._button.addEventListener('click', async e => {
			e.stopPropagation();
			e.preventDefault();

			await this.handleClick();
		});

		//Open login on ArrowRight from button
		DomEvent.on(this._button,'keydown', async (e: Event) => {
			if ((e as KeyboardEvent).key === 'ArrowRight') {
				e.stopPropagation();
				e.preventDefault();

				await this.handleClick();
			}
		});

		watch(this.loggedIn, () => {
			this.update();
		});

		const visibleModal = computed(() => this.store.state.ui.visibleModal);

		watch(visibleModal, (newValue, oldValue) => {
			this._button.setAttribute('aria-expanded', (newValue === 'login').toString());

			if(this._map && !newValue && oldValue === 'login') {
				this._button.focus();
			}
		});

		this.update();
	}

	onAdd() {
		return this._button;
	}

	private update() {
		this._button.title = this.loggedIn.value
			? this.store.state.messages.logoutTitle : this.store.state.messages.loginTitle;
		this._button.innerHTML = `
			<svg class="svg-icon">
			  <use xlink:href="#icon--${this.loggedIn.value ? 'logout' : 'login'}" />
			</svg>`;
	}

	private async handleClick() {
		const logoutSuccess = computed(() => this.store.state.messages.logoutSuccess),
			logoutError = computed(() => this.store.state.messages.logoutErrorUnknown);

		if (this.loggedIn.value) {
			try {
				await this.store.dispatch(ActionTypes.LOGOUT, undefined);
				notify(logoutSuccess.value);
			} catch(e) {
				notify(logoutError.value);
			}
		} else {
			this.store.commit(MutationTypes.SHOW_UI_MODAL, 'login');
		}
	}
}