1 files changed, 89 insertions, 0 deletions
diff --git a/threads.js b/threads.js
index 2d1ce77..06644f9 100644
--- a/threads.js
+++ b/threads.js
@@ -2676,6 +2676,95 @@ Process.prototype.reportTimer = function () {
     return 0;
 };
 
+Process.prototype.userLon = function () {
+    return window.geoposition.lng;
+};
+
+Process.prototype.userLat = function () {
+    return window.geoposition.lat;
+};
+
+Process.prototype.focusMap = function (lon, lat, zoom) {
+    window.map.setView([lat, lon], zoom);
+};
+
+// Nesting reporters that 'doYield' sucks; as a workaround,
+// there is a library imported that uses this function.
+// TODO: Improve this :)
+//
+// returns true if there are elements returned by the overpass query
+Process.prototype.overpassQuerySucceeds = function (query) {
+    var url = 'overpass-api.de/api/interpreter?data=[out:json];'
+        + query;
+
+    var response;
+    if (!this.httpRequest) {
+        this.httpRequest = new XMLHttpRequest();
+        this.httpRequest.open("GET", 'http://' + url, true);
+        this.httpRequest.send(null);
+    } else if (this.httpRequest.readyState === 4) {
+        response = this.httpRequest.responseText;
+        this.httpRequest = null;
+        console.log(response); // DEBUG
+        return JSON.parse(response).elements.length > 0;
+    }
+    this.pushContext('doYield');
+    this.pushContext();
+};
+
+Process.prototype.reportGeocode = function (lon, lat) {
+    var myself = this;
+
+    if (!myself.context.jsonpScript) {
+        window.OSM_JSONP_Callback = function (data) {
+            myself.context.json = data;
+            window.OSM_JSONP_Callback = undefined;
+        };
+        myself.context.jsonpScript = document.createElement('script');
+        myself.context.jsonpScript.src =
+            'https://nominatim.openstreetmap.org/reverse'
+            + '?format=json&json_callback=OSM_JSONP_Callback'
+            + '&addressdetails=0&limit=1&zoom=18'
+            + '&lon=' + lon + '&lat=' + lat;
+        document.getElementsByTagName('HEAD')[0]
+            .appendChild(myself.context.jsonpScript);
+    } else {
+        if (myself.context.json) {
+            return myself.context.json.display_name;
+        }
+    }
+
+    this.pushContext('doYield');
+    this.pushContext();
+};
+
+Process.prototype.findLocation = function (searchString) {
+    var myself = this;
+
+    if (!myself.context.jsonpScript) {
+        window.OSM_JSONP_Callback = function (data) {
+            myself.context.json = data;
+            window.OSM_JSONP_Callback = undefined;
+        };
+        myself.context.jsonpScript = document.createElement('script');
+        myself.context.jsonpScript.src =
+            'https://nominatim.openstreetmap.org/search'
+            + '?format=json&json_callback=OSM_JSONP_Callback'
+            + '&addressdetails=0&limit=1'
+            + '&q=' + searchString;
+        document.getElementsByTagName('HEAD')[0]
+            .appendChild(myself.context.jsonpScript);
+    } else {
+        if (myself.context.json) {
+            return new List([myself.context.json[0].lat,
+                    myself.context.json[0].lon]);
+        }
+    }
+
+    this.pushContext('doYield');
+    this.pushContext();
+};
+
 // Process Dates and times in Snap
 // Map block options to built-in functions
 var dateMap = {