X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/fe2f03da141dd10ec200908e2f623e4c790ad4d3..6619b777e353cbdfdcc6f7ac0e77f8bca9f78656:/app/assets/javascripts/application.js

diff --git a/app/assets/javascripts/application.js b/app/assets/javascripts/application.js
index f8a8c4520..c9eddfb9c 100644
--- a/app/assets/javascripts/application.js
+++ b/app/assets/javascripts/application.js
@@ -5,9 +5,8 @@
 //= require augment
 //= require leaflet
 //= require leaflet.osm
+//= require leaflet.extend
 //= require leaflet.locationfilter
-//= require leaflet.pan
-//= require leaflet.zoom
 //= require i18n/translations
 //= require oauth
 //= require osm
@@ -18,6 +17,9 @@
 //= require richtext
 //= require resize
 //= require geocoder
+//= require querystring
+
+var querystring = require('querystring');
 
 function zoomPrecision(zoom) {
     var decimals = Math.pow(10, Math.floor(zoom/3));
@@ -26,188 +28,127 @@ function zoomPrecision(zoom) {
     };
 }
 
+function normalBounds(bounds) {
+    if (bounds instanceof L.LatLngBounds) return bounds;
+    return new L.LatLngBounds(
+        new L.LatLng(bounds[0][0], bounds[0][1]),
+        new L.LatLng(bounds[1][0], bounds[1][1]));
+}
+
 /*
- * Called as the user scrolls/zooms around to aniplate hrefs of the
+ * Called as the user scrolls/zooms around to maniplate hrefs of the
  * view tab and various other links
  */
-function updatelinks(lon,lat,zoom,layers,minlon,minlat,maxlon,maxlat,object) {
+function updatelinks(loc, zoom, layers, bounds, object) {
   var toPrecision = zoomPrecision(zoom);
+  bounds = normalBounds(bounds);
   var node;
 
-  lat = toPrecision(lat);
-  lon = toPrecision(lon);
+  var lat = toPrecision(loc.lat),
+      lon = toPrecision(loc.lon || loc.lng);
 
-  if (minlon) {
-    minlon = toPrecision(minlon);
-    minlat = toPrecision(minlat);
-    maxlon = toPrecision(maxlon);
-    maxlat = toPrecision(maxlat);
+  if (bounds) {
+    var minlon = toPrecision(bounds.getWest()),
+        minlat = toPrecision(bounds.getSouth()),
+        maxlon = toPrecision(bounds.getEast()),
+        maxlat = toPrecision(bounds.getNorth());
   }
 
-  $(".geolink").each(function (index, link) {
-    var args = getArgs(link.href);
+  $(".geolink").each(setGeolink);
+
+  function setGeolink(index, link) {
+    var base = link.href.split('?')[0],
+        qs = link.href.split('?')[1],
+        args = querystring.parse(qs);
 
     if ($(link).hasClass("llz")) {
-      args.lat = lat;
-      args.lon = lon;
-      args.zoom = zoom;
+      $.extend(args, {
+          lat: '' + lat,
+          lon: '' + lon,
+          zoom: '' + zoom
+      });
     } else if (minlon && $(link).hasClass("bbox")) {
-      args.bbox = minlon + "," + minlat + "," + maxlon + "," + maxlat;
-    }
-
-    if (layers && $(link).hasClass("layers")) {
-      args.layers = layers;
+      $.extend(args, {
+          bbox: minlon + "," + minlat + "," + maxlon + "," + maxlat
+      });
     }
 
-    if (object && $(link).hasClass("object")) {
-      args[object.type] = object.id;
-    }
+    if (layers && $(link).hasClass("layers")) args.layers = layers;
+    if (object && $(link).hasClass("object")) args[object.type] = object.id;
 
     var minzoom = $(link).data("minzoom");
     if (minzoom) {
         var name = link.id.replace(/anchor$/, "");
-
         $(link).off("click.minzoom");
-
         if (zoom >= minzoom) {
-          $(link).attr("title", I18n.t("javascripts.site." + name + "_tooltip"));
-          $(link).removeClass("disabled");
+          $(link).attr("title", I18n.t("javascripts.site." + name + "_tooltip"))
+              .removeClass("disabled");
         } else {
-          $(link).on("click.minzoom", function () { alert(I18n.t("javascripts.site." + name + "_zoom_alert")); return false; });
-          $(link).attr("title", I18n.t("javascripts.site." + name + "_disabled_tooltip"));
-          $(link).addClass("disabled");
+          $(link).on("click.minzoom", minZoomAlert)
+              .attr("title", I18n.t("javascripts.site." + name + "_disabled_tooltip"))
+              .addClass("disabled");
         }
     }
-
-    link.href = setArgs(link.href, args);
-  });
-
-  $("#shortlinkanchor").each(function () {
-    var args = getArgs(this.href);
-    var code = makeShortCode(lat, lon, zoom);
-    var prefix = shortlinkPrefix();
-
-    // Add ?{node,way,relation}=id to the arguments
-    if (object) {
-      args[object.type] = object.id;
-    }
-
-    // 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 || object) {
-      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 "";
+    link.href = base + '?' + querystring.stringify(args);
   }
 }
 
-/*
- * 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;
+function getShortUrl(map) {
+  return (window.location.hostname.match(/^www\.openstreetmap\.org/i) ?
+          'http://osm.org/go/' : '/go/') +
+          makeShortCode(map);
 }
 
-/*
- * 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;
+function minZoomAlert() {
+    alert(I18n.t("javascripts.site." + name + "_zoom_alert")); return false;
 }
 
 /*
  * 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);
+function makeShortCode(map) {
+    var lon = map.getCenter().lng,
+        lat = map.getCenter().lat,
+        zoom = map.getZoom(),
+        str = '',
+        char_array = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_~",
+        x = Math.round((lon + 180.0) * ((1 << 30) / 90.0)),
+        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.
+        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) {
+    for (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 += "-";
+    for (i = 0; i < ((zoom + 8) % 3); ++i) str += "-";
+
+    /*
+     * 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;
     }
+
     return str;
 }
 
 /*
- * Forms which have been cached by rails may have he wrong
+ * Forms which have been cached by rails may have the wrong
  * authenticity token, so patch up any forms with the correct
  * token taken from the page header.
  */