- 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]) {
- this.href = setArgs(prefix + "/go/" + code, args);
- } else {
- this.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 = {};
- 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(/^(.*)=(.*)$/)) {
- args[unescape(match[1])] = unescape(match[2]);
- } else {
- args[unescape(queryitems[i])] = null;
- }
- }
- }
-
- return args;
-}
-
-/*
- * Called to set the arguments on a URL from the given hash.
- */
-function setArgs(url, args) {
- var queryitems = [];
-
- for (arg in args) {
- if (args[arg] == null) {
- queryitems.push(escape(arg));
- } else {
- queryitems.push(escape(arg) + "=" + escape(args[arg]));
- }
- }
-
- return url.replace(/\?.*$/, "") + "?" + queryitems.join("&");
-}
-
-/*
- * Called to 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;
-}
-
-/*
- * Click handler to switch a rich text control to preview mode
- */
-function previewRichtext(event) {
- var editor = $(this).parents(".richtext_container").find("textarea");
- var preview = $(this).parents(".richtext_container").find(".richtext_preview");
- var width = editor.outerWidth() - preview.outerWidth() + preview.innerWidth();
- var minHeight = editor.outerHeight() - preview.outerHeight() + preview.innerHeight();
-
- if (preview.contents().length == 0) {
- preview.oneTime(500, "loading", function () {
- preview.addClass("loading");
- });
-
- preview.load(editor.attr("data-preview-url"), { text: editor.val() }, function () {
- preview.stopTime("loading");
- preview.removeClass("loading");
- });
- }
projects / rails.git / blobdiff