389 lines
11 KiB
JavaScript
389 lines
11 KiB
JavaScript
'use strict';
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// Create a map
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var options = {};
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if (start_lat || start_lng) {
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start_lat = start_lat.toFixed(5);
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start_lng = start_lng.toFixed(5);
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options = {
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center: [start_lat, start_lng],
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zoom: zoom,
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};
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history.replaceState(null, null, `/map/${zoom}/${start_lat}/${start_lng}`);
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}
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var map = L.map("map", options);
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var group = L.featureGroup();
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var wikidata_items = {};
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var osm_objects = {};
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var wikidata_loaded = false;
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var osm_loaded = false;
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var loading = document.getElementById("loading");
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var load_text = document.getElementById("load-text");
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var isa_card = document.getElementById("isa-card");
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var isa_labels = {};
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var connections = {};
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map.addLayer(group);
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map.zoomControl.setPosition('topright');
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var blueMarker = L.ExtraMarkers.icon({
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icon: 'fa-wikidata',
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markerColor: 'blue',
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shape: 'circle',
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prefix: 'fa',
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});
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var greenMarker = L.ExtraMarkers.icon({
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icon: 'fa-wikidata',
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markerColor: 'green',
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shape: 'circle',
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prefix: 'fa',
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});
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var redMarker = L.ExtraMarkers.icon({
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icon: 'fa-wikidata',
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markerColor: 'red',
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shape: 'circle',
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prefix: 'fa',
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});
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var osmYellowMarker = L.ExtraMarkers.icon({
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icon: 'fa-map',
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markerColor: 'yellow',
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shape: 'square',
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prefix: 'fa',
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});
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var osmOrangeMarker = L.ExtraMarkers.icon({
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icon: 'fa-map',
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markerColor: 'orange',
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shape: 'square',
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prefix: 'fa',
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});
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if (!start_lat || !start_lng) {
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map.fitBounds([[49.85,-10.5], [58.75, 1.9]]);
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}
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// Add OpenStreetMap layer
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var osm = L.tileLayer("https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png", { maxZoom: 19 });
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osm.addTo(map);
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function check_items(items) {
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if (items.length === 0)
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return;
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var item = items.shift();
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var qid = item.qid;
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var markers_url = `/api/1/item/${qid}`;
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axios.get(markers_url).then(response => {
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// console.log(response.data, item);
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response.data.info.forEach(osm => {
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var icon = osmYellowMarker;
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var marker = L.marker(osm.centroid, {title: osm.name, icon: icon});
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var popup = `
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<p>
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<a href="${osm.url}" target="_blank">${osm.identifier}</a>: ${osm.name}
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</p>`
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marker.bindPopup(popup);
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marker.addTo(group);
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});
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item.markers.forEach(marker_data => {
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var marker = marker_data.marker;
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var icon = response.data.tagged ? greenMarker : redMarker;
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marker.setIcon(icon);
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response.data.info.forEach(osm => {
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var path = [osm.centroid, marker_data];
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var polyline = L.polyline(path, {color: 'green'}).addTo(map);
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});
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});
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if (items.length)
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check_items(items);
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});
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}
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function update_wikidata() {
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if (Object.keys(wikidata_items).length === 0 || Object.keys(osm_objects).length === 0) {
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if (wikidata_loaded && osm_loaded) {
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loading.classList.add("visually-hidden");
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load_text.classList.remove("visually-hidden");
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}
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return;
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}
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for (const qid in osm_objects) {
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var osm_list = osm_objects[qid];
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var item = wikidata_items[qid];
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if (!item) {
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osm_list.forEach(osm => {
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osm.marker.setIcon(osmOrangeMarker);
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});
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continue;
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}
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if (item.lines === undefined)
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item.lines = [];
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item.markers.forEach(marker_data => {
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marker_data.marker.setIcon(greenMarker);
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osm_list.forEach(osm => {
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var path = [osm.centroid, marker_data];
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var polyline = L.polyline(path, {color: 'green'}).addTo(group);
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item.lines.push(polyline);
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});
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});
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}
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for (const qid in wikidata_items) {
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if (osm_objects[qid])
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continue;
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var item = wikidata_items[qid];
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item.markers.forEach(marker_data => {
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marker_data.marker.setIcon(redMarker);
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});
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}
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loading.classList.add("visually-hidden");
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load_text.classList.remove("visually-hidden");
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}
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function isa_only(e) {
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e.preventDefault();
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var this_id = e.target.parentNode.childNodes[0].id;
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var checkbox_list = document.getElementsByClassName('isa-checkbox');
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for (const checkbox of checkbox_list) {
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checkbox.checked = checkbox.id == this_id;
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}
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checkbox_change();
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}
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function checkbox_change() {
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var checkbox_list = document.getElementsByClassName('isa-checkbox');
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var ticked = [];
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for (const checkbox of checkbox_list) {
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if (checkbox.checked) {
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ticked.push(checkbox.id.substr(4));
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}
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}
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for (const qid in wikidata_items) {
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var item = wikidata_items[qid];
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const item_isa_list = wikidata_items[qid]['isa_list'];
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const intersection = ticked.filter(isa_qid => item_isa_list.includes(isa_qid));
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if (item.lines) {
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item.lines.forEach(line => {
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if (intersection.length) {
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line.addTo(group);
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} else {
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line.removeFrom(group);
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}
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});
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}
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item.markers.forEach(marker_data => {
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var marker = marker_data.marker;
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if (intersection.length) {
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marker.addTo(group);
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} else {
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marker.removeFrom(group);
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}
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});
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if(osm_objects[qid]) {
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osm_objects[qid].forEach(osm => {
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if (intersection.length) {
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osm.marker.addTo(group);
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} else {
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osm.marker.removeFrom(group);
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}
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});
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}
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}
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}
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function set_isa_list(isa_count) {
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isa_card.classList.remove("visually-hidden");
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var isa_list = document.getElementById("isa-list");
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isa_list.innerHTML = '';
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isa_count.forEach(isa => {
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isa_labels[isa.qid] = isa.label;
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var isa_id = `isa-${isa.qid}`;
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var e = document.createElement('div');
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e.setAttribute('class', 'isa-item');
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var checkbox = document.createElement('input');
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checkbox.setAttribute('type', 'checkbox');
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checkbox.setAttribute('checked', 'checked');
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checkbox.setAttribute('id', isa_id);
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checkbox.setAttribute('class', 'isa-checkbox');
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checkbox.onchange = checkbox_change;
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e.appendChild(checkbox);
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e.appendChild(document.createTextNode(' '));
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var label = document.createElement('label');
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label.setAttribute('for', isa_id);
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var label_text = document.createTextNode(` ${isa.label} (${isa.qid}): ${isa.count} `);
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label.appendChild(label_text);
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e.appendChild(label);
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e.appendChild(document.createTextNode(' '));
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var only = document.createElement('a');
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only.setAttribute('href', '#');
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var only_text = document.createTextNode('only');
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only.appendChild(only_text);
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only.onclick = isa_only;
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e.appendChild(only);
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isa_list.appendChild(e);
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});
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}
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function load_wikidata_items() {
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var checkbox_list = document.getElementsByClassName('isa-checkbox');
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for (const checkbox of checkbox_list)
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checkbox.checked = true;
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checkbox_change();
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loading.classList.remove("visually-hidden");
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load_text.classList.add("visually-hidden");
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var bounds = map.getBounds();
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console.log("map moved", bounds.toBBoxString());
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// var items_to_check = [];
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var params = {bounds: bounds.toBBoxString()};
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var items_url = "/api/1/items";
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axios.get(items_url, {params: params}).then(response => {
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set_isa_list(response.data.isa_count);
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var items = response.data.items;
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items.forEach(item => {
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if (item.qid in wikidata_items)
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return;
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item.markers.forEach(marker_data => {
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// var icon = marker.tagged ? greenMarker : blueMarker;
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var icon = blueMarker;
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var label = `${item.label} (${item.qid})`
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var marker = L.marker(marker_data, {title: label, icon: icon});
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var wd_url = 'https://www.wikidata.org/wiki/' + item.qid;
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var popup = '<p><strong>Wikidata item</strong><br>'
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popup += `<a href="${wd_url}" target="_blank">${item.label}</a> (${item.qid})`
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if (item.description) {
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popup += `<br>description: ${item.description}`
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}
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if (item.isa_list) {
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popup += '<br><strong>item type</strong>'
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for (const [index, isa_qid] of item.isa_list.entries()) {
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var isa_url = 'https://www.wikidata.org/wiki/' + isa_qid;
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var isa_label = isa_labels[isa_qid];
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popup += `<br><a href="${isa_url}">${isa_label}</a> (${isa_qid})`;
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}
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}
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popup += '</p>';
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marker.bindPopup(popup);
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marker.addTo(group);
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marker_data.marker = marker;
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});
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wikidata_items[item.qid] = item;
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// items_to_check.push(item);
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});
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wikidata_loaded = true;
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isa_card.classList.remove("visually-hidden");
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update_wikidata();
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// duration_span.innerText = response.data.duration;
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// check_items(items_to_check);
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});
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var osm_objects_url = "/api/1/osm";
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axios.get(osm_objects_url, {params: params}).then(response => {
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console.log(`${response.data.duration} seconds`);
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response.data.objects.forEach(osm => {
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var qid = osm.wikidata;
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if (osm_objects[qid] === undefined)
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osm_objects[qid] = [];
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osm_objects[qid].push(osm);
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var icon = osmYellowMarker;
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var marker = L.marker(osm.centroid, {title: osm.name, icon: icon});
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osm.marker = marker;
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var wd_url = 'https://www.wikidata.org/wiki/' + qid;
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var popup = `
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<p>
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${osm.name}:
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<a href="${osm.url}" target="_blank">${osm.identifier}</a>
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<br>
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Wikidata tag: <a href="${wd_url}">${qid}</a>
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</p>`
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marker.bindPopup(popup);
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marker.addTo(group);
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});
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osm_loaded = true;
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update_wikidata();
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});
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};
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var load_btn = document.getElementById('load-btn');
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load_btn.onclick = load_wikidata_items;
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var search_btn = document.getElementById('search-btn');
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var search_form = document.getElementById('search-form');
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search_form.onsubmit = function(e) {
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e.preventDefault();
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var search_text = document.getElementById('search-text').value.trim();
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if (!search_text)
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return;
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var params = {q: search_text};
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var search_url = "/api/1/search";
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var search_results = document.getElementById('search-results');
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axios.get(search_url, {params: params}).then(response => {
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search_results.innerHTML = '';
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response.data.hits.forEach(hit => {
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var e = document.createElement('div');
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var category = document.createTextNode(hit.category + ' ');
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e.appendChild(category);
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var a = document.createElement('a');
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var lat = parseFloat(hit.lat).toFixed(5);
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var lon = parseFloat(hit.lon).toFixed(5);
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a.setAttribute('href', `/map/15/${lat}/${lon}`);
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var link_text = document.createTextNode(hit.name);
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a.appendChild(link_text);
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e.appendChild(a);
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search_results.appendChild(e);
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});
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console.log(response.data);
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});
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}
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map.on('moveend', function (e) {
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var zoom = map.getZoom();
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var c = map.getCenter();
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var lat = c.lat.toFixed(5);
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var lng = c.lng.toFixed(5);
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history.replaceState(null, null, `/map/${zoom}/${lat}/${lng}`);
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});
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