Allow asset layer display to be body dependent.

Return a list of associated bodies on around/new pages and in category ajax
calls, and use that when deciding whether to show/hide layers. If the layer
has no body information, then we show it as before, maybe based on category
selected; if it does, it is only shown if the layer body matches the bodies
for the point.

As part of this create a new VectorAsset class to handle all the visibility
changes for asset layers as it makes it a bit tidier.

1 files changed, 42 insertions, 0 deletions

diff --git a/web/js/map-OpenLayers.js b/web/js/map-OpenLayers.js
index 3c9e3fb91..07acf248c 100644
--- a/web/js/map-OpenLayers.js
+++ b/web/js/map-OpenLayers.js
@@ -27,6 +27,48 @@ $.extend(fixmystreet.utils, {
         return out.join(',');
     },
 
+    // https://stackoverflow.com/questions/1293147/javascript-code-to-parse-csv-data/1293163#1293163
+    csv_to_array: function( strData, strDelimiter ) {
+        strDelimiter = (strDelimiter || ",");
+
+        var objPattern = new RegExp(
+            (
+                "(\\" + strDelimiter + "|\\r?\\n|\\r|^)" +
+                "(?:\"([^\"]*(?:\"\"[^\"]*)*)\"|" +
+                "([^\"\\" + strDelimiter + "\\r\\n]*))"
+            ),
+            "gi"
+            );
+
+        var arrData = [[]];
+
+        var arrMatches = objPattern.exec( strData );
+        while (arrMatches) {
+
+            var strMatchedDelimiter = arrMatches[ 1 ];
+
+            if ( strMatchedDelimiter.length &&
+                strMatchedDelimiter !== strDelimiter) {
+                arrData.push( [] );
+            }
+
+            var strMatchedValue;
+            if (arrMatches[ 2 ]) {
+                strMatchedValue = arrMatches[ 2 ].replace(
+                    new RegExp( "\"\"", "g" ),
+                    "\""
+                );
+            } else {
+                strMatchedValue = arrMatches[ 3 ];
+            }
+
+            arrData[ arrData.length - 1 ].push( strMatchedValue );
+            arrMatches = objPattern.exec( strData );
+        }
+
+        return( arrData );
+    },
+
     parse_query_string: function() {
         var qs = {};
         if (!location.search) {