Air-Quality-Web/client_src/js/LayerDeviceMarkers.mjs

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JavaScript
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"use strict";
import L from 'leaflet';
import 'leaflet.markercluster';
// import CreateElement from 'dom-create-element-query-selector';
// We're using the git repo for now until an update is released, and rollup doesn't like that apparently
import CreateElement from '../../node_modules/dom-create-element-query-selector/src/index.js';
import Config from './Config.mjs';
import GetFromUrl from './Helpers/GetFromUrl.mjs';
class LayerDeviceMarkers {
constructor(in_map) {
this.map = in_map;
// Create a new clustering layer
this.layer = L.markerClusterGroup();
}
async setup() {
// Fetch the device list
let device_list = JSON.parse(await GetFromUrl(
`${Config.api_root}?action=list-devices&only-with-location=yes`
));
// Add a marker for each device
for (let device of device_list) {
this.add_device_marker(device);
}
// Display this layer
this.map.addLayer(this.layer);
}
add_device_marker(device) {
// Create the marker
let marker = L.marker(
L.latLng(device.latitude, device.longitude),
{ // See https://leafletjs.com/reference-1.4.0.html#marker
title: `Device: ${device.name}`,
autoPan: true,
autoPanPadding: L.point(100, 100)
}
);
// Create the popup
let popup = L.popup({
className: "popup-device",
autoPanPadding: L.point(100, 100)
}).setContent("⌛ Loading..."); // TODO: Display a nice loading animation here
marker.on("popupopen", this.marker_popup_open_handler.bind(this, device.id));
marker.bindPopup(popup);
this.layer.addLayer(marker);
}
async marker_popup_open_handler(device_id, event) {
if(typeof device_id !== "number")
throw new Exception("Error: Invalid device id passed.");
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console.info("Fetching device info for device", device_id);
let device_info = JSON.parse(await GetFromUrl(`${Config.api_root}?action=device-info&device-id=${device_id}`));
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device_info.location = [ device_info.latitude, device_info.longitude ];
delete device_info.latitude;
delete device_info.longitude;
event.popup.setContent(this.render_device_info(device_info));
}
render_device_info(device_info) {
let result = document.createDocumentFragment();
result.appendChild(CreateElement("h2.device-name",
`Device: ${device_info.name}`
));
result.querySelector(".device-name").dataset.id = device_info.id;
let info_list = [];
for(let property in device_info) {
// Filter out properties we're handling specially
if(["id", "name", "other"].includes(property)) continue;
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// Ensure the property is a string - giving special handling to
// some property values
let value = device_info[property];
if(typeof value != "string") {
switch(property) {
case "location":
value = `(${value[0]}, ${value[1]})`;
break;
default:
value = value.toString();
break;
}
}
info_list.push(CreateElement(
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"tr.device-property",
CreateElement("th.name", property.split("_").map((word) => word[0].toUpperCase()+word.slice(1)).join(" ")),
CreateElement("td.value", value)
));
}
result.appendChild(CreateElement("table.device-property-table", ...info_list));
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result.appendChild(CreateElement("p.device-notes",
CreateElement("em", device_info.other)
));
return result;
}
}
export default LayerDeviceMarkers;