+++ /dev/null
-/*
- * Called as the user scrolls/zooms around to aniplate hrefs of the
- * view tab and various other links
- */
-function updatelinks(lon,lat,zoom,layers,minlon,minlat,maxlon,maxlat,objtype,objid) {
- var decimals = Math.pow(10, Math.floor(zoom/3));
- var node;
-
- lat = Math.round(lat * decimals) / decimals;
- lon = Math.round(lon * decimals) / decimals;
-
- if (minlon) {
- minlon = Math.round(minlon * decimals) / decimals;
- minlat = Math.round(minlat * decimals) / decimals;
- maxlon = Math.round(maxlon * decimals) / decimals;
- maxlat = Math.round(maxlat * decimals) / decimals;
- }
-
- $$(".geolink").each(function (link) {
- var args = getArgs(link.href);
-
- if (link.hasClassName("llz")) {
- args.lat = lat;
- args.lon = lon;
- args.zoom = zoom;
- } else if (minlon && link.hasClassName("bbox")) {
- args.bbox = minlon + "," + minlat + "," + maxlon + "," + maxlat;
- }
-
- if (layers && link.hasClassName("layers")) {
- args.layers = layers;
- }
-
- if (objtype && link.hasClassName("object")) {
- args[objtype] = objid;
- }
-
- if (link.hasClassName("minzoom[0-9]+")) {
- $w(link.className).each(function (classname) {
- if (match = classname.match(/^minzoom([0-9]+)$/)) {
- var minzoom = match[1];
- var name = link.id.replace(/anchor$/, "");
-
- if (zoom >= minzoom) {
- link.onclick = null;
- link.title = i18n("javascripts.site." + name + "_tooltip");
- link.removeClassName("disabled");
- } else {
- link.onclick = function () { alert(i18n("javascripts.site." + name + "_zoom_alert")); return false; };
- link.title = i18n("javascripts.site." + name + "_disabled_tooltip");
- link.addClassName("disabled");
- }
- }
- });
- }
-
- link.href = setArgs(link.href, args);
- });
-
- node = $("shortlinkanchor");
- if (node) {
- var args = getArgs(node.href);
- var code = makeShortCode(lat, lon, zoom);
- var prefix = shortlinkPrefix();
-
- // Add ?{node,way,relation}=id to the arguments
- if (objtype && objid) {
- args[objtype] = objid;
- }
-
- // This is a hack to omit the default mapnik layer from the shortlink.
- if (layers && layers != "M") {
- args["layers"] = layers;
- }
- else {
- delete args["layers"];
- }
-
- // Here we're assuming that all parameters but ?layers= and
- // ?{node,way,relation}= can be safely omitted from the shortlink
- // which encodes lat/lon/zoom. If new URL parameters are added to
- // the main slippy map this needs to be changed.
- if (args["layers"] || args[objtype]) {
- node.href = setArgs(prefix + "/go/" + code, args);
- } else {
- node.href = prefix + "/go/" + code;
- }
- }
-}
-
-/*
- * Get the URL prefix to use for a short link
- */
-function shortlinkPrefix() {
- if (window.location.hostname.match(/^www\.openstreetmap\.org/i)) {
- return "http://osm.org";
- } else {
- return "";
- }
-}
-
-/*
- * Called to get the arguments from a URL as a hash.
- */
-function getArgs(url) {
- var args = new Object();
- var querystart = url.indexOf("?");
-
- if (querystart >= 0) {
- var querystring = url.substring(querystart + 1);
- var queryitems = querystring.split("&");
-
- for (var i = 0; i < queryitems.length; i++) {
- if (match = queryitems[i].match(/^(.*)=(.*)$/)) {
- args[unescape(match[1])] = unescape(match[2]);
- } else {
- args[unescape(queryitems[i])] = null
- }
- }
- }
-
- return args;
-}
-
-/*
- * Called to set the arguments on a URL from the given hash.
- */
-function setArgs(url, args) {
- var queryitems = new Array();
-
- for (arg in args)
- {
- if (args[arg] == null) {
- queryitems.push(escape(arg));
- } else {
- queryitems.push(escape(arg) + "=" + escape(args[arg]));
- }
- }
-
- return url.replace(/\?.*$/, "") + "?" + queryitems.join("&");
-}
-
-/*
- * Called to get a CSS property for an element.
- */
-function getStyle(el, property) {
- var style;
-
- if (el.currentStyle) {
- style = el.currentStyle[property];
- } else if( window.getComputedStyle ) {
- style = document.defaultView.getComputedStyle(el,null).getPropertyValue(property);
- } else {
- style = el.style[property];
- }
-
- return style;
-}
-
-/*
- * Called to interpolate JavaScript variables in strings using a
- * similar syntax to rails I18n string interpolation - the only
- * difference is that [[foo]] is the placeholder syntax instead
- * of {{foo}} which allows the same string to be processed by both
- * rails and then later by javascript.
- */
-function i18n(string, keys) {
- string = i18n_strings[string] || string
-
- for (var key in keys) {
- var re_key = '\\[\\[' + key + '\\]\\]';
- var re = new RegExp(re_key, "g");
-
- string = string.replace(re, keys[key]);
- }
-
- return string;
-}
-
-/*
- * Called to interlace the bits in x and y, making a Morton code.
- */
-function interlace(x, y) {
- x = (x | (x << 8)) & 0x00ff00ff;
- x = (x | (x << 4)) & 0x0f0f0f0f;
- x = (x | (x << 2)) & 0x33333333;
- x = (x | (x << 1)) & 0x55555555;
-
- y = (y | (y << 8)) & 0x00ff00ff;
- y = (y | (y << 4)) & 0x0f0f0f0f;
- y = (y | (y << 2)) & 0x33333333;
- y = (y | (y << 1)) & 0x55555555;
-
- return (x << 1) | y;
-}
-
-/*
- * Called to create a short code for the short link.
- */
-function makeShortCode(lat, lon, zoom) {
- char_array = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_@";
- var x = Math.round((lon + 180.0) * ((1 << 30) / 90.0));
- var y = Math.round((lat + 90.0) * ((1 << 30) / 45.0));
- // JavaScript only has to keep 32 bits of bitwise operators, so this has to be
- // done in two parts. each of the parts c1/c2 has 30 bits of the total in it
- // and drops the last 4 bits of the full 64 bit Morton code.
- var str = "";
- var c1 = interlace(x >>> 17, y >>> 17), c2 = interlace((x >>> 2) & 0x7fff, (y >>> 2) & 0x7fff);
- for (var i = 0; i < Math.ceil((zoom + 8) / 3.0) && i < 5; ++i) {
- digit = (c1 >> (24 - 6 * i)) & 0x3f;
- str += char_array.charAt(digit);
- }
- for (var i = 5; i < Math.ceil((zoom + 8) / 3.0); ++i) {
- digit = (c2 >> (24 - 6 * (i - 5))) & 0x3f;
- str += char_array.charAt(digit);
- }
- for (var i = 0; i < ((zoom + 8) % 3); ++i) {
- str += "-";
- }
- return str;
-}
projects / rails.git / blobdiff