owl-map/static/js/map.js

404 lines
11 KiB
JavaScript

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