1 //= require jquery-simulate/jquery.simulate
3 OSM.History = function (map) {
7 .on("click", ".changeset_more a", loadMore)
8 .on("mouseover", "[data-changeset]", function () {
9 highlightChangeset($(this).data("changeset").id);
11 .on("mouseout", "[data-changeset]", function () {
12 unHighlightChangeset($(this).data("changeset").id);
15 const group = L.featureGroup()
16 .on("mouseover", function (e) {
17 highlightChangeset(e.layer.id);
19 .on("mouseout", function (e) {
20 unHighlightChangeset(e.layer.id);
22 .on("click", function (e) {
23 clickChangeset(e.layer.id, e.originalEvent);
26 group.getLayerId = function (layer) {
30 function highlightChangeset(id) {
31 const layer = group.getLayer(id);
32 if (layer) layer.setStyle({ fillOpacity: 0.3, color: "#FF6600", weight: 3 });
33 $("#changeset_" + id).addClass("selected");
36 function unHighlightChangeset(id) {
37 const layer = group.getLayer(id);
38 if (layer) layer.setStyle({ fillOpacity: 0, color: "#FF9500", weight: 2 });
39 $("#changeset_" + id).removeClass("selected");
42 function clickChangeset(id, e) {
43 $("#changeset_" + id).find("a.changeset_id").simulate("click", e);
46 function displayFirstChangesets(html) {
47 $("#sidebar_content .changesets").html(html);
50 function displayMoreChangesets(div, html) {
51 const sidebar = $("#sidebar")[0];
52 const previousScrollHeightMinusTop = sidebar.scrollHeight - sidebar.scrollTop;
54 const oldList = $("#sidebar_content .changesets ol");
56 div.replaceWith(html);
58 const prevNewList = oldList.prevAll("ol");
59 if (prevNewList.length) {
60 prevNewList.next(".changeset_more").remove();
61 prevNewList.children().prependTo(oldList);
64 // restore scroll position only if prepending
65 sidebar.scrollTop = sidebar.scrollHeight - previousScrollHeightMinusTop;
68 const nextNewList = oldList.nextAll("ol");
69 if (nextNewList.length) {
70 nextNewList.prev(".changeset_more").remove();
71 nextNewList.children().appendTo(oldList);
77 const data = new URLSearchParams();
78 const params = new URLSearchParams(location.search);
80 if (location.pathname === "/history") {
81 data.set("bbox", map.getBounds().wrap().toBBoxString());
82 const feedLink = $("link[type=\"application/atom+xml\"]"),
83 feedHref = feedLink.attr("href").split("?")[0];
84 feedLink.attr("href", feedHref + "?" + data);
87 data.set("list", "1");
89 if (params.has("before")) {
90 data.set("before", params.get("before"));
92 if (params.has("after")) {
93 data.set("after", params.get("after"));
96 fetch(location.pathname + "?" + data)
97 .then(response => response.text())
98 .then(function (html) {
99 displayFirstChangesets(html);
104 function loadMore(e) {
108 const div = $(this).parents(".changeset_more");
111 div.find(".loader").show();
113 $.get($(this).attr("href"), function (html) {
114 displayMoreChangesets(div, html);
121 function updateBounds() {
124 for (const changeset of changesets) {
125 const bottomLeft = map.project(L.latLng(changeset.bbox.minlat, changeset.bbox.minlon)),
126 topRight = map.project(L.latLng(changeset.bbox.maxlat, changeset.bbox.maxlon)),
127 width = topRight.x - bottomLeft.x,
128 height = bottomLeft.y - topRight.y,
129 minSize = 20; // Min width/height of changeset in pixels
131 if (width < minSize) {
132 bottomLeft.x -= ((minSize - width) / 2);
133 topRight.x += ((minSize - width) / 2);
136 if (height < minSize) {
137 bottomLeft.y += ((minSize - height) / 2);
138 topRight.y -= ((minSize - height) / 2);
141 changeset.bounds = L.latLngBounds(map.unproject(bottomLeft),
142 map.unproject(topRight));
145 changesets.sort(function (a, b) {
146 return b.bounds.getSize() - a.bounds.getSize();
149 for (const changeset of changesets) {
150 const rect = L.rectangle(changeset.bounds,
151 { weight: 2, color: "#FF9500", opacity: 1, fillColor: "#FFFFAF", fillOpacity: 0 });
152 rect.id = changeset.id;
157 function updateMap() {
158 changesets = $("[data-changeset]").map(function (index, element) {
159 return $(element).data("changeset");
160 }).get().filter(function (changeset) {
161 return changeset.bbox;
166 if (location.pathname !== "/history") {
167 const bounds = group.getBounds();
168 if (bounds.isValid()) map.fitBounds(bounds);
172 page.pushstate = page.popstate = function (path) {
173 OSM.loadSidebarContent(path, page.load);
176 page.load = function () {
179 if (location.pathname === "/history") {
180 map.on("moveend", update);
183 map.on("zoomend", updateBounds);
188 page.unload = function () {
189 map.removeLayer(group);
190 map.off("moveend", update);
191 map.off("zoomend", updateBounds);