zoomPrecision doesn't need to be higher-order

[rails.git] / app / assets / javascripts / application.js

diff --git a/app/assets/javascripts/application.js b/app/assets/javascripts/application.js
index eb338aa93539e45b81dfedd4948f4d8f4df86812..18b1515c59b121c6bd4cc06d0f91e488456bffb6 100644 (file)
--- a/app/assets/javascripts/application.js
+++ b/app/assets/javascripts/application.js
@@ -5,6 +5,9 @@
 //= require augment
 //= require leaflet
 //= require leaflet.osm
 //= require augment
 //= require leaflet
 //= require leaflet.osm

+//= require leaflet.hash
+//= require leaflet.zoom
+//= require leaflet.extend

 //= require leaflet.locationfilter
 //= require i18n/translations
 //= require oauth
 //= require leaflet.locationfilter
 //= require i18n/translations
 //= require oauth


@@ -14,17 +17,13 @@
 //= require menu
 //= require sidebar
 //= require richtext
 //= require menu
 //= require sidebar
 //= require richtext

-//= require resize

 //= require geocoder
 //= require querystring
 
 //= require geocoder
 //= require querystring
 

-var querystring = require('querystring');
+var querystring = require('querystring-component');

 
 function zoomPrecision(zoom) {
 
 function zoomPrecision(zoom) {

-    var decimals = Math.pow(10, Math.floor(zoom/3));
-    return function(x) {
-         return Math.round(x * decimals) / decimals;
-    };
+    return Math.max(0, Math.ceil(Math.log(zoom) / Math.LN2));

 }
 
 function normalBounds(bounds) {
 }
 
 function normalBounds(bounds) {


@@ -34,38 +33,57 @@ function normalBounds(bounds) {
         new L.LatLng(bounds[1][0], bounds[1][1]));
 }
 
         new L.LatLng(bounds[1][0], bounds[1][1]));
 }
 

+function remoteEditHandler(bbox, select) {
+  var loaded = false,
+      query = {
+          left: bbox.getWest() - 0.0001,
+          top: bbox.getNorth() + 0.0001,
+          right: bbox.getEast() + 0.0001,
+          bottom: bbox.getSouth() - 0.0001
+      };
+
+  if (select) query.select = select;
+  $("#linkloader")
+    .attr("src", "http://127.0.0.1:8111/load_and_zoom?" + querystring.stringify(query))
+    .load(function() { loaded = true; });
+
+  setTimeout(function () {
+    if (!loaded) alert(I18n.t('site.index.remote_failed'));
+  }, 1000);
+
+  return false;
+}
+

 /*
  * Called as the user scrolls/zooms around to maniplate hrefs of the
  * view tab and various other links
  */
 function updatelinks(loc, zoom, layers, bounds, object) {
 /*
  * Called as the user scrolls/zooms around to maniplate hrefs of the
  * view tab and various other links
  */
 function updatelinks(loc, zoom, layers, bounds, object) {

-  var toPrecision = zoomPrecision(zoom);
+  var precision = zoomPrecision(zoom);

   bounds = normalBounds(bounds);
   bounds = normalBounds(bounds);

-  var node;

 
 

-  var lat = toPrecision(loc.lat),
-      lon = toPrecision(loc.lon || loc.lng);
+  var lat = loc.lat.toFixed(precision),
+      lon = (loc.lon || loc.lng).toFixed(precision);

 
   if (bounds) {
 
   if (bounds) {

-    var minlon = toPrecision(bounds.getWest()),
-        minlat = toPrecision(bounds.getSouth()),
-        maxlon = toPrecision(bounds.getEast()),
-        maxlat = toPrecision(bounds.getNorth());
+    var minlon = bounds.getWest().toFixed(precision),
+        minlat = bounds.getSouth().toFixed(precision),
+        maxlon = bounds.getEast().toFixed(precision),
+        maxlat = bounds.getNorth().toFixed(precision);

   }
 
   $(".geolink").each(setGeolink);
   }
 
   $(".geolink").each(setGeolink);

-  $("#shortlinkanchor").each(setShortlink);

 
   function setGeolink(index, link) {
 
   function setGeolink(index, link) {

-    var base = link.href.split('?')[0];
-    var qs = link.href.split('?')[1];
-    var args = querystring.parse(qs);
+    var base = link.href.split('?')[0],
+        qs = link.href.split('?')[1],
+        args = querystring.parse(qs);

 
     if ($(link).hasClass("llz")) {
       $.extend(args, {
 
     if ($(link).hasClass("llz")) {
       $.extend(args, {

-          lat: '' + lat,
-          lon: '' + lon,
-          zoom: '' + zoom
+          lat: lat,
+          lon: lon,
+          zoom: zoom

       });
     } else if (minlon && $(link).hasClass("bbox")) {
       $.extend(args, {
       });
     } else if (minlon && $(link).hasClass("bbox")) {
       $.extend(args, {


@@ -78,115 +96,34 @@ function updatelinks(loc, zoom, layers, bounds, object) {
 
     var minzoom = $(link).data("minzoom");
     if (minzoom) {
 
     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"))
-              .removeClass("disabled");
-        } else {
-          $(link).on("click.minzoom", minZoomAlert)
-              .attr("title", I18n.t("javascripts.site." + name + "_disabled_tooltip"))
-              .addClass("disabled");
-        }
+      var name = link.id.replace(/anchor$/, "");
+      $(link).off("click.minzoom");
+      if (zoom >= minzoom) {
+        $(link)
+          .attr("title", I18n.t("javascripts.site." + name + "_tooltip"))
+          .removeClass("disabled");
+      } else {
+        $(link)
+          .attr("title", I18n.t("javascripts.site." + name + "_disabled_tooltip"))
+          .addClass("disabled")
+          .on("click.minzoom", function () {
+            alert(I18n.t("javascripts.site." + name + "_zoom_alert"));
+            return false;
+          });
+      }

     }
     }

-

     link.href = base + '?' + querystring.stringify(args);
   }
     link.href = base + '?' + querystring.stringify(args);
   }

-
-
-  function setShortlink() {
-    var base = link.href.split('?')[0],
-        qs = link.href.split('?')[1],
-        args = querystring.parse(qs),
-        code = makeShortCode(lat, lon, zoom),
-        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 = prefix + "/go/" + code + '?' + querystring.stringify(args);
-    } else {
-      this.href = prefix + "/go/" + code;
-    }
-  }

 }
 
 }
 

-function minZoomAlert() {
-    alert(I18n.t("javascripts.site." + name + "_zoom_alert")); return false;
-}
-
-/*
- * 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 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;
+// generate a cookie-safe string of map state
+function cookieContent(map) {
+  var center = map.getCenter().wrap();
+  return [center.lng, center.lat, map.getZoom(), map.getLayersCode()].join('|');

 }
 
 /*
 }
 
 /*

- * 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.
  */
  * authenticity token, so patch up any forms with the correct
  * token taken from the page header.
  */