3 //= require jquery.autogrowtextarea
4 //= require jquery.timers
5 //= require i18n/translations
8 * Called as the user scrolls/zooms around to aniplate hrefs of the
9 * view tab and various other links
11 function updatelinks(lon,lat,zoom,layers,minlon,minlat,maxlon,maxlat,objtype,objid) {
12 var decimals = Math.pow(10, Math.floor(zoom/3));
15 lat = Math.round(lat * decimals) / decimals;
16 lon = Math.round(lon * decimals) / decimals;
19 minlon = Math.round(minlon * decimals) / decimals;
20 minlat = Math.round(minlat * decimals) / decimals;
21 maxlon = Math.round(maxlon * decimals) / decimals;
22 maxlat = Math.round(maxlat * decimals) / decimals;
25 $(".geolink").each(function (index, link) {
26 var args = getArgs(link.href);
28 if ($(link).hasClass("llz")) {
32 } else if (minlon && $(link).hasClass("bbox")) {
33 args.bbox = minlon + "," + minlat + "," + maxlon + "," + maxlat;
36 if (layers && $(link).hasClass("layers")) {
40 if (objtype && $(link).hasClass("object")) {
41 args[objtype] = objid;
44 var classes = $(link).attr("class").split(" ");
46 $(classes).each(function (index, classname) {
47 if (match = classname.match(/^minzoom([0-9]+)$/)) {
48 var minzoom = match[1];
49 var name = link.id.replace(/anchor$/, "");
51 $(link).off("click.minzoom");
53 if (zoom >= minzoom) {
54 $(link).attr("title", I18n.t("javascripts.site." + name + "_tooltip"));
55 $(link).removeClass("disabled");
57 $(link).on("click.minzoom", function () { alert(I18n.t("javascripts.site." + name + "_zoom_alert")); return false; });
58 $(link).attr("title", I18n.t("javascripts.site." + name + "_disabled_tooltip"));
59 $(link).addClass("disabled");
64 link.href = setArgs(link.href, args);
67 $("#shortlinkanchor").each(function () {
68 var args = getArgs(this.href);
69 var code = makeShortCode(lat, lon, zoom);
70 var prefix = shortlinkPrefix();
72 // Add ?{node,way,relation}=id to the arguments
73 if (objtype && objid) {
74 args[objtype] = objid;
77 // This is a hack to omit the default mapnik layer from the shortlink.
78 if (layers && layers != "M") {
85 // Here we're assuming that all parameters but ?layers= and
86 // ?{node,way,relation}= can be safely omitted from the shortlink
87 // which encodes lat/lon/zoom. If new URL parameters are added to
88 // the main slippy map this needs to be changed.
89 if (args.layers || args[objtype]) {
90 this.href = setArgs(prefix + "/go/" + code, args);
92 this.href = prefix + "/go/" + code;
98 * Get the URL prefix to use for a short link
100 function shortlinkPrefix() {
101 if (window.location.hostname.match(/^www\.openstreetmap\.org/i)) {
102 return "http://osm.org";
109 * Called to get the arguments from a URL as a hash.
111 function getArgs(url) {
113 var querystart = url.indexOf("?");
115 if (querystart >= 0) {
116 var querystring = url.substring(querystart + 1);
117 var queryitems = querystring.split("&");
119 for (var i = 0; i < queryitems.length; i++) {
120 if (match = queryitems[i].match(/^(.*)=(.*)$/)) {
121 args[unescape(match[1])] = unescape(match[2]);
123 args[unescape(queryitems[i])] = null;
132 * Called to set the arguments on a URL from the given hash.
134 function setArgs(url, args) {
138 if (args[arg] == null) {
139 queryitems.push(escape(arg));
141 queryitems.push(escape(arg) + "=" + escape(args[arg]));
145 return url.replace(/\?.*$/, "") + "?" + queryitems.join("&");
149 * Called to interlace the bits in x and y, making a Morton code.
151 function interlace(x, y) {
152 x = (x | (x << 8)) & 0x00ff00ff;
153 x = (x | (x << 4)) & 0x0f0f0f0f;
154 x = (x | (x << 2)) & 0x33333333;
155 x = (x | (x << 1)) & 0x55555555;
157 y = (y | (y << 8)) & 0x00ff00ff;
158 y = (y | (y << 4)) & 0x0f0f0f0f;
159 y = (y | (y << 2)) & 0x33333333;
160 y = (y | (y << 1)) & 0x55555555;
166 * Called to create a short code for the short link.
168 function makeShortCode(lat, lon, zoom) {
169 char_array = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_~";
170 var x = Math.round((lon + 180.0) * ((1 << 30) / 90.0));
171 var y = Math.round((lat + 90.0) * ((1 << 30) / 45.0));
172 // JavaScript only has to keep 32 bits of bitwise operators, so this has to be
173 // done in two parts. each of the parts c1/c2 has 30 bits of the total in it
174 // and drops the last 4 bits of the full 64 bit Morton code.
176 var c1 = interlace(x >>> 17, y >>> 17), c2 = interlace((x >>> 2) & 0x7fff, (y >>> 2) & 0x7fff);
177 for (var i = 0; i < Math.ceil((zoom + 8) / 3.0) && i < 5; ++i) {
178 digit = (c1 >> (24 - 6 * i)) & 0x3f;
179 str += char_array.charAt(digit);
181 for (var i = 5; i < Math.ceil((zoom + 8) / 3.0); ++i) {
182 digit = (c2 >> (24 - 6 * (i - 5))) & 0x3f;
183 str += char_array.charAt(digit);
185 for (var i = 0; i < ((zoom + 8) % 3); ++i) {
192 * Click handler to switch a rich text control to preview mode
194 function previewRichtext(event) {
195 var editor = $(this).parents(".richtext_container").find("textarea");
196 var preview = $(this).parents(".richtext_container").find(".richtext_preview");
197 var width = editor.outerWidth() - preview.outerWidth() + preview.innerWidth();
198 var minHeight = editor.outerHeight() - preview.outerHeight() + preview.innerHeight();
200 if (preview.contents().length == 0) {
201 preview.oneTime(500, "loading", function () {
202 preview.addClass("loading");
205 preview.load(editor.attr("data-preview-url"), { text: editor.val() }, function () {
206 preview.stopTime("loading");
207 preview.removeClass("loading");
212 preview.width(width);
213 preview.css("min-height", minHeight + "px");
216 $(this).siblings(".richtext_doedit").prop("disabled", false);
217 $(this).prop("disabled", true);
219 event.preventDefault();
223 * Click handler to switch a rich text control to edit mode
225 function editRichtext(event) {
226 var editor = $(this).parents(".richtext_container").find("textarea");
227 var preview = $(this).parents(".richtext_container").find(".richtext_preview");
232 $(this).siblings(".richtext_dopreview").prop("disabled", false);
233 $(this).prop("disabled", true);
235 event.preventDefault();
239 * Setup any rich text controls
241 $(document).ready(function () {
242 $(".richtext_preview").hide();
243 $(".richtext_content textarea").change(function () {
244 $(this).parents(".richtext_container").find(".richtext_preview").empty();
246 $(".richtext_doedit").prop("disabled", true);
247 $(".richtext_dopreview").prop("disabled", false);
248 $(".richtext_doedit").click(editRichtext);
249 $(".richtext_dopreview").click(previewRichtext);