X-Git-Url: https://git.openstreetmap.org./nominatim-ui.git/blobdiff_plain/04224d9aa3b35e5adc455fde1cc081cf3d4c94bd..e322758be287af4362499df4c8b6703eb0bcda18:/dist/assets/js/nominatim-ui.js

diff --git a/dist/assets/js/nominatim-ui.js b/dist/assets/js/nominatim-ui.js
index 1618eac..54eaa75 100644
--- a/dist/assets/js/nominatim-ui.js
+++ b/dist/assets/js/nominatim-ui.js
@@ -1,13 +1,35 @@
+'use strict';
+
 var map;
 var last_click_latlng;
 
+// *********************************************************
+// DEFAULTS
+// *********************************************************
+
+var Nominatim_Config_Defaults = {
+  Nominatim_API_Endpoint: 'http://localhost/nominatim/',
+  Images_Base_Url: '/mapicons/',
+  Search_AreaPolygons: 1,
+  Reverse_Default_Search_Zoom: 18,
+  Map_Default_Lat: 20.0,
+  Map_Default_Lon: 0.0,
+  Map_Default_Zoom: 2,
+  Map_Tile_URL: 'https://{s}.tile.osm.org/{z}/{x}/{y}.png',
+  Map_Tile_Attribution: '<a href="https://osm.org/copyright">OpenStreetMap contributors</a>'
+};
 
 // *********************************************************
 // HELPERS
 // *********************************************************
 
+
 function get_config_value(str, default_val) {
-  return (typeof Nominatim_Config[str] !== 'undefined' ? Nominatim_Config[str] : default_val);
+  var value = ((typeof Nominatim_Config !== 'undefined')
+               && (typeof Nominatim_Config[str] !== 'undefined'))
+    ? Nominatim_Config[str]
+    : Nominatim_Config_Defaults[str];
+  return (typeof value !== 'undefined' ? value : default_val);
 }
 
 function parse_and_normalize_geojson_string(part) {
@@ -27,7 +49,10 @@ function parse_and_normalize_geojson_string(part) {
 }
 
 function map_link_to_osm() {
-  return 'https://openstreetmap.org/#map=' + map.getZoom() + '/' + map.getCenter().lat + '/' + map.getCenter().lng;
+  var zoom = map.getZoom();
+  var lat = map.getCenter().lat;
+  var lng = map.getCenter().lng;
+  return 'https://openstreetmap.org/#map=' + zoom + '/' + lat + '/' + lng;
 }
 
 function map_viewbox_as_string() {
@@ -55,23 +80,52 @@ function map_viewbox_as_string() {
 // PAGE HELPERS
 // *********************************************************
 
-function fetch_from_api(endpoint_name, params, callback) {
-  // `&a=&b=&c=1` => '&c='
-  for (var k in params) {
-    if (typeof (params[k]) === 'undefined' || params[k] === '' || params[k] === null) delete params[k];
+function generate_full_api_url(endpoint_name, params) {
+  //
+  // `&a=&b=&c=1` => '&c=1'
+  var param_names = Object.keys(params);
+  for (var i = 0; i < param_names.length; i += 1) {
+    var val = params[param_names[i]];
+    if (typeof (val) === 'undefined' || val === '' || val === null) {
+      delete params[param_names[i]];
+    }
   }
 
-  var api_url = get_config_value('Nominatim_API_Endpoint') + endpoint_name + '.php?' + $.param(params);
-  if (endpoint_name !== 'status') {
-    $('#api-request-link').attr('href', api_url);
+  var api_url = get_config_value('Nominatim_API_Endpoint') + endpoint_name + '.php?'
+                  + $.param(params);
+  return api_url;
+}
+
+function update_last_updated(endpoint_name, params) {
+  if (endpoint_name === 'status') return;
+
+  var api_url = generate_full_api_url(endpoint_name, params);
+  $('#last-updated').show();
+
+  $('#api-request a').attr('href', api_url);
+  $('#api-request').show();
+
+  if (endpoint_name === 'search' || endpoint_name === 'reverse') {
+    $('#api-request-debug a').attr('href', api_url + '&debug=1');
+    $('#api-request-debug').show();
+  } else {
+    $('#api-request-debug').hide();
   }
+}
+
+function fetch_from_api(endpoint_name, params, callback) {
+  var api_url = generate_full_api_url(endpoint_name, params);
   $.get(api_url, function (data) {
+    if (endpoint_name !== 'status') {
+      update_last_updated(endpoint_name, params);
+    }
     callback(data);
   });
 }
 
 function update_data_date() {
   fetch_from_api('status', { format: 'json' }, function (data) {
+    $('#last-updated').show();
     $('#data-date').text(data.data_updated);
   });
 }
@@ -83,6 +137,14 @@ function render_template(el, template_name, page_context) {
   el.html(html);
 }
 
+function update_html_title(title) {
+  var prefix = '';
+  if (title && title.length > 1) {
+    prefix = title + ' | ';
+  }
+  $('head title').text(prefix + 'OpenStreetMap Nominatim');
+}
+
 function show_error(html) {
   $('#error-overlay').html(html).show();
 }
@@ -92,15 +154,21 @@ function hide_error() {
 }
 
 
-$(document).ajaxError(function (event, jqXHR, ajaxSettings, thrownError) {
-  // console.log(thrownError);
-  // console.log(ajaxSettings);
-  show_error('Error fetching results from <a href="' + ajaxSettings.url + '">' + ajaxSettings.url + '</a>');
-});
-
-
 jQuery(document).ready(function () {
   hide_error();
+
+  $('#last-updated').hide();
+
+  $(document).ajaxStart(function () {
+    $('#loading').fadeIn('fast');
+  }).ajaxComplete(function () {
+    $('#loading').fadeOut('fast');
+  }).ajaxError(function (event, jqXHR, ajaxSettings/* , thrownError */) {
+    // console.log(thrownError);
+    // console.log(ajaxSettings);
+    var url = ajaxSettings.url;
+    show_error('Error fetching results from <a href="' + url + '">' + url + '</a>');
+  });
 });
 // *********************************************************
 // DETAILS PAGE
@@ -108,20 +176,22 @@ jQuery(document).ready(function () {
 
 
 function init_map_on_detail_page(lat, lon, geojson) {
+  var attribution = get_config_value('Map_Tile_Attribution') || null;
   map = new L.map('map', {
     // center: [nominatim_map_init.lat, nominatim_map_init.lon],
     // zoom:   nominatim_map_init.zoom,
-    attributionControl: (get_config_value('Map_Tile_Attribution') && get_config_value('Map_Tile_Attribution').length),
+    attributionControl: (attribution && attribution.length),
     scrollWheelZoom: true, // !L.Browser.touch,
-    touchZoom: false,
+    touchZoom: false
   });
 
   L.tileLayer(get_config_value('Map_Tile_URL'), {
     // moved to footer
-    attribution: (get_config_value('Map_Tile_Attribution') || null) // '&copy; <a href="https://osm.org/copyright">OpenStreetMap</a> contributors'
+    // '&copy; <a href="https://osm.org/copyright">OpenStreetMap</a> contributors'
+    attribution: attribution
   }).addTo(map);
 
-  var layerGroup = new L.layerGroup().addTo(map);
+  // var layerGroup = new L.layerGroup().addTo(map);
 
   var circle = L.circleMarker([lat, lon], {
     radius: 10, weight: 2, fillColor: '#ff7800', color: 'blue', opacity: 0.75
@@ -133,7 +203,7 @@ function init_map_on_detail_page(lat, lon, geojson) {
       // https://leafletjs.com/reference-1.0.3.html#path-option
       parse_and_normalize_geojson_string(geojson),
       {
-        style: function (feature) {
+        style: function () {
           return { interactive: false, color: 'blue' };
         }
       }
@@ -144,24 +214,31 @@ function init_map_on_detail_page(lat, lon, geojson) {
     map.setView([lat, lon], 10);
   }
 
-  var osm2 = new L.TileLayer(get_config_value('Map_Tile_URL'), { minZoom: 0, maxZoom: 13, attribution: (get_config_value('Map_Tile_Attribution') || null) });
-  var miniMap = new L.Control.MiniMap(osm2, { toggleDisplay: true }).addTo(map);
+  var osm2 = new L.TileLayer(
+    get_config_value('Map_Tile_URL'),
+    {
+      minZoom: 0,
+      maxZoom: 13,
+      attribution: (get_config_value('Map_Tile_Attribution') || null)
+    }
+  );
+  (new L.Control.MiniMap(osm2, { toggleDisplay: true })).addTo(map);
 }
 
 
-jQuery(document).ready(function () {
-  if (!$('#details-page').length) { return; }
+function details_page_load() {
 
-  var search_params = new URLSearchParams(location.search);
+  var search_params = new URLSearchParams(window.location.search);
   // var place_id = search_params.get('place_id');
 
   var api_request_params = {
     place_id: search_params.get('place_id'),
     osmtype: search_params.get('osmtype'),
     osmid: search_params.get('osmid'),
+    class: search_params.get('class'),
     keywords: search_params.get('keywords'),
     addressdetails: 1,
-    hierarchy: 1,
+    hierarchy: (search_params.get('hierarchy') === '1' ? 1 : 0),
     group_hierarchy: 1,
     polygon_geojson: 1,
     format: 'json'
@@ -169,9 +246,14 @@ jQuery(document).ready(function () {
 
   if (api_request_params.place_id || (api_request_params.osmtype && api_request_params.osmid)) {
     fetch_from_api('details', api_request_params, function (aFeature) {
-      var context = { aPlace: aFeature };
+      var context = { aPlace: aFeature, base_url: window.location.search };
 
       render_template($('main'), 'detailspage-template', context);
+      if (api_request_params.place_id) {
+        update_html_title('Details for ' + api_request_params.place_id);
+      } else {
+        update_html_title('Details for ' + api_request_params.osmtype + api_request_params.osmid);
+      }
 
       update_data_date();
 
@@ -201,7 +283,7 @@ jQuery(document).ready(function () {
       alert('invalid input');
     }
   });
-});
+}
 
 // *********************************************************
 // FORWARD/REVERSE SEARCH PAGE
@@ -214,18 +296,31 @@ function display_map_position(mouse_lat_lng) {
     mouse_lat_lng = map.wrapLatLng(mouse_lat_lng);
   }
 
-  html_mouse = 'mouse position ' + (mouse_lat_lng ? [mouse_lat_lng.lat.toFixed(5), mouse_lat_lng.lng.toFixed(5)].join(',') : '-');
-  html_click = 'last click: ' + (last_click_latlng ? [last_click_latlng.lat.toFixed(5), last_click_latlng.lng.toFixed(5)].join(',') : '-');
+  var html_mouse = 'mouse position: -';
+  if (mouse_lat_lng) {
+    html_mouse = 'mouse position: '
+                  + [mouse_lat_lng.lat.toFixed(5), mouse_lat_lng.lng.toFixed(5)].join(',');
+  }
+  var html_click = 'last click: -';
+  if (last_click_latlng) {
+    html_click = 'last click: '
+                  + [last_click_latlng.lat.toFixed(5), last_click_latlng.lng.toFixed(5)].join(',');
+  }
 
-  html_center = 'map center: '
+  var html_center = 'map center: '
     + map.getCenter().lat.toFixed(5) + ',' + map.getCenter().lng.toFixed(5)
     + ' <a target="_blank" href="' + map_link_to_osm() + '">view on osm.org</a>';
 
-  html_zoom = 'map zoom: ' + map.getZoom();
+  var html_zoom = 'map zoom: ' + map.getZoom();
+  var html_viewbox = 'viewbox: ' + map_viewbox_as_string();
 
-  html_viewbox = 'viewbox: ' + map_viewbox_as_string();
-
-  $('#map-position-inner').html([html_center, html_zoom, html_viewbox, html_click, html_mouse].join('<br/>'));
+  $('#map-position-inner').html([
+    html_center,
+    html_zoom,
+    html_viewbox,
+    html_click,
+    html_mouse
+  ].join('<br/>'));
 
   var center_lat_lng = map.wrapLatLng(map.getCenter());
   var reverse_params = {
@@ -236,30 +331,37 @@ function display_map_position(mouse_lat_lng) {
   };
   $('#switch-to-reverse').attr('href', 'reverse.html?' + $.param(reverse_params));
 
-  $('input#use_viewbox').trigger('change');
+  $('input.api-param-setting').trigger('change');
 }
 
-function init_map_on_search_page(is_reverse_search, nominatim_results, request_lat, request_lon, init_zoom) {
-  //
+function init_map_on_search_page(is_reverse_search, nominatim_results, request_lat,
+  request_lon, init_zoom) {
+
+  var attribution = get_config_value('Map_Tile_Attribution') || null;
   map = new L.map('map', {
     // center: [nominatim_map_init.lat, nominatim_map_init.lon],
     // zoom:   nominatim_map_init.zoom,
-    attributionControl: (get_config_value('Map_Tile_Attribution') && get_config_value('Map_Tile_Attribution').length),
+    attributionControl: (attribution && attribution.length),
     scrollWheelZoom: true, // !L.Browser.touch,
-    touchZoom: false,
+    touchZoom: false
   });
 
 
   L.tileLayer(get_config_value('Map_Tile_URL'), {
     // moved to footer
-    attribution: (get_config_value('Map_Tile_Attribution') || null ) // '&copy; <a href="https://osm.org/copyright">OpenStreetMap</a> contributors'
+    // '&copy; <a href="https://osm.org/copyright">OpenStreetMap</a> contributors'
+    attribution: attribution
   }).addTo(map);
 
   // console.log(Nominatim_Config);
 
   map.setView([request_lat, request_lon], init_zoom);
 
-  var osm2 = new L.TileLayer(get_config_value('Map_Tile_URL'), { minZoom: 0, maxZoom: 13, attribution: (get_config_value('Map_Tile_Attribution') || null ) });
+  var osm2 = new L.TileLayer(get_config_value('Map_Tile_URL'), {
+    minZoom: 0,
+    maxZoom: 13,
+    attribution: attribution
+  });
   new L.Control.MiniMap(osm2, { toggleDisplay: true }).addTo(map);
 
   if (is_reverse_search) {
@@ -272,10 +374,25 @@ function init_map_on_search_page(is_reverse_search, nominatim_results, request_l
         fillColor: '#ff7800',
         color: 'red',
         opacity: 0.75,
+        zIndexOffset: 100,
         clickable: false
       }
     );
     cm.addTo(map);
+  } else {
+    var search_params = new URLSearchParams(window.location.search);
+    var viewbox = search_params.get('viewbox');
+    if (viewbox) {
+      var coords = viewbox.split(','); // <x1>,<y1>,<x2>,<y2>
+      var bounds = L.latLngBounds([coords[1], coords[0]], [coords[3], coords[2]]);
+      L.rectangle(bounds, {
+        color: '#69d53e',
+        weight: 3,
+        dashArray: '5 5',
+        opacity: 0.8,
+        fill: false
+      }).addTo(map);
+    }
   }
 
   var MapPositionControl = L.Control.extend({
@@ -285,12 +402,14 @@ function init_map_on_search_page(is_reverse_search, nominatim_results, request_l
     onAdd: function (/* map */) {
       var container = L.DomUtil.create('div', 'my-custom-control');
 
-      $(container).text('show map bounds').addClass('leaflet-bar btn btn-sm btn-default').on('click', function (e) {
-        e.preventDefault();
-        e.stopPropagation();
-        $('#map-position').show();
-        $(container).hide();
-      });
+      $(container).text('show map bounds')
+        .addClass('leaflet-bar btn btn-sm btn-outline-secondary')
+        .on('click', function (e) {
+          e.preventDefault();
+          e.stopPropagation();
+          $('#map-position').show();
+          $(container).hide();
+        });
       $('#map-position-close a').on('click', function (e) {
         e.preventDefault();
         e.stopPropagation();
@@ -310,7 +429,9 @@ function init_map_on_search_page(is_reverse_search, nominatim_results, request_l
 
   function update_viewbox_field() {
     // hidden HTML field
-    $('input[name=viewbox]').val($('input#use_viewbox').prop('checked') ? map_viewbox_as_string() : '');
+    $('input[name=viewbox]')
+      .val($('input#use_viewbox')
+        .prop('checked') ? map_viewbox_as_string() : '');
   }
 
   map.on('move', function () {
@@ -335,15 +456,29 @@ function init_map_on_search_page(is_reverse_search, nominatim_results, request_l
     update_viewbox_field();
   });
 
+  $('input#option_bounded').on('change', function () {
+    $('input[name=bounded]')
+      .val($('input#option_bounded')
+        .prop('checked') ? '1' : '');
+  });
+
+  $('input#option_dedupe').on('change', function () {
+    $('input[name=dedupe]')
+      .val($('input#option_dedupe')
+        .prop('checked') ? '' : '0');
+  });
 
+  $('input[data-api-param]').on('change', function (e) {
+    $('input[name=' + $(e.target).data('api-param') + ']').val(e.target.value);
+  });
 
 
   function get_result_element(position) {
     return $('.result').eq(position);
   }
-  function marker_for_result(result) {
-    return L.marker([result.lat, result.lon], { riseOnHover: true, title: result.name });
-  }
+  // function marker_for_result(result) {
+  //   return L.marker([result.lat, result.lon], { riseOnHover: true, title: result.name });
+  // }
   function circle_for_result(result) {
     var cm_style = {
       radius: 10,
@@ -356,7 +491,7 @@ function init_map_on_search_page(is_reverse_search, nominatim_results, request_l
     return L.circleMarker([result.lat, result.lon], cm_style);
   }
 
-  var layerGroup = new L.layerGroup().addTo(map);
+  var layerGroup = (new L.layerGroup()).addTo(map);
 
   function highlight_result(position, bool_focus) {
     var result = nominatim_results[position];
@@ -377,11 +512,11 @@ function init_map_on_search_page(is_reverse_search, nominatim_results, request_l
     }
 
     if (result.boundingbox) {
-      var bounds = [
+      var bbox = [
         [result.boundingbox[0] * 1, result.boundingbox[2] * 1],
         [result.boundingbox[1] * 1, result.boundingbox[3] * 1]
       ];
-      map.fitBounds(bounds);
+      map.fitBounds(bbox);
 
       if (result.geojson && result.geojson.type.match(/(Polygon)|(Line)/)) {
         //
@@ -389,7 +524,7 @@ function init_map_on_search_page(is_reverse_search, nominatim_results, request_l
           parse_and_normalize_geojson_string(result.geojson),
           {
             // https://leafletjs.com/reference-1.0.3.html#path-option
-            style: function (feature) {
+            style: function (/* feature */) {
               return { interactive: false, color: 'blue' };
             }
           }
@@ -450,29 +585,21 @@ function init_map_on_search_page(is_reverse_search, nominatim_results, request_l
 
   // common mistake is to copy&paste latitude and longitude into the 'lat' search box
   $('form input[name=lat]').on('change', function () {
-    var coords = $(this).val().split(',');
-    if (coords.length === 2) {
-      $(this).val(L.Util.trim(coords[0]));
-      $(this).siblings('input[name=lon]').val(L.Util.trim(coords[1]));
+    var coords_split = $(this).val().split(',');
+    if (coords_split.length === 2) {
+      $(this).val(L.Util.trim(coords_split[0]));
+      $(this).siblings('input[name=lon]').val(L.Util.trim(coords_split[1]));
     }
   });
 }
 
 
 
+function search_page_load() {
 
+  var is_reverse_search = window.location.pathname.match(/reverse/);
 
-
-
-jQuery(document).ready(function () {
-  //
-  if (!$('#search-page,#reverse-page').length) { return; }
-
-  var is_reverse_search = !!($('#reverse-page').length);
-  var endpoint = is_reverse_search ? 'reverse' : 'search';
-
-
-  var search_params = new URLSearchParams(location.search);
+  var search_params = new URLSearchParams(window.location.search);
 
   // return view('search', [
   //     'sQuery' => $sQuery,
@@ -484,23 +611,29 @@ jQuery(document).ready(function () {
   //     'sApiURL' => $url
   // ]);
 
+  var api_request_params;
+  var context;
 
   if (is_reverse_search) {
-    var api_request_params = {
+    api_request_params = {
       lat: search_params.get('lat'),
       lon: search_params.get('lon'),
-      zoom: (search_params.get('zoom') !== null ? search_params.get('zoom') : get_config_value('Reverse_Default_Search_Zoom')),
+      zoom: (search_params.get('zoom') > 1
+        ? search_params.get('zoom')
+        : get_config_value('Reverse_Default_Search_Zoom')),
       format: 'jsonv2'
     };
 
-    var context = {
+    context = {
       // aPlace: aPlace,
       fLat: api_request_params.lat,
       fLon: api_request_params.lon,
-      iZoom: (search_params.get('zoom') !== null ? api_request_params.zoom : get_config_value('Reverse_Default_Search_Zoom'))
+      iZoom: (search_params.get('zoom') > 1
+        ? api_request_params.zoom
+        : get_config_value('Reverse_Default_Search_Zoom'))
     };
 
-
+    update_html_title();
     if (api_request_params.lat && api_request_params.lon) {
 
       fetch_from_api('reverse', api_request_params, function (aPlace) {
@@ -509,9 +642,14 @@ jQuery(document).ready(function () {
           aPlace = null;
         }
 
+        context.bSearchRan = true;
         context.aPlace = aPlace;
 
         render_template($('main'), 'reversepage-template', context);
+        update_html_title('Reverse result for '
+                            + api_request_params.lat
+                            + ','
+                            + api_request_params.lon);
 
         init_map_on_search_page(
           is_reverse_search,
@@ -536,30 +674,82 @@ jQuery(document).ready(function () {
     }
 
   } else {
-    var api_request_params = {
+    api_request_params = {
       q: search_params.get('q'),
-      polygon_geojson: search_params.get('polygon_geojson') ? 1 : 0,
+      street: search_params.get('street'),
+      city: search_params.get('city'),
+      county: search_params.get('county'),
+      state: search_params.get('state'),
+      country: search_params.get('country'),
+      postalcode: search_params.get('postalcode'),
+      polygon_geojson: get_config_value('Search_AreaPolygons', false) ? 1 : 0,
       viewbox: search_params.get('viewbox'),
+      bounded: search_params.get('bounded'),
+      dedupe: search_params.get('dedupe'),
+      'accept-language': search_params.get('accept-language'),
+      countrycodes: search_params.get('countrycodes'),
+      limit: search_params.get('limit'),
+      polygon_threshold: search_params.get('polygon_threshold'),
+      exclude_place_ids: search_params.get('exclude_place_ids'),
       format: 'jsonv2'
     };
 
-    var context = {
-      // aSearchResults: aResults,
+    context = {
       sQuery: api_request_params.q,
-      sViewBox: '',
-      env: Nominatim_Config,
-      sMoreURL: ''
+      sViewBox: search_params.get('viewbox'),
+      sBounded: search_params.get('bounded'),
+      sDedupe: search_params.get('dedupe'),
+      sLang: search_params.get('accept-language'),
+      sCCode: search_params.get('countrycodes'),
+      sLimit: search_params.get('limit'),
+      sPolyThreshold: search_params.get('polygon_threshold'),
+      env: {}
     };
 
-    if (api_request_params.q) {
+    if (api_request_params.street || api_request_params.city || api_request_params.county
+      || api_request_params.state || api_request_params.country || api_request_params.postalcode) {
+      context.hStructured = {
+        street: api_request_params.street,
+        city: api_request_params.city,
+        county: api_request_params.county,
+        state: api_request_params.state,
+        country: api_request_params.country,
+        postalcode: api_request_params.postalcode
+      };
+    }
+
+    if (api_request_params.q || context.hStructured) {
 
       fetch_from_api('search', api_request_params, function (aResults) {
 
+        context.bSearchRan = true;
         context.aSearchResults = aResults;
 
+        // lonvia wrote: https://github.com/osm-search/nominatim-ui/issues/24
+        // I would suggest to remove the guessing and always show the link. Nominatim only returns
+        // one or two results when it believes the result to be a good enough match.
+        // if (aResults.length >= 10) {
+        var aExcludePlaceIds = [];
+        if (search_params.has('exclude_place_ids')) {
+          aExcludePlaceIds = search_params.get('exclude_place_ids').split(',');
+        }
+        for (var i = 0; i < aResults.length; i += 1) {
+          aExcludePlaceIds.push(aResults[i].place_id);
+        }
+        var parsed_url = new URLSearchParams(window.location.search);
+        parsed_url.set('exclude_place_ids', aExcludePlaceIds.join(','));
+        context.sMoreURL = '?' + parsed_url.toString();
+
         render_template($('main'), 'searchpage-template', context);
+        update_html_title('Result for ' + api_request_params.q);
 
-        init_map_on_search_page(is_reverse_search, aResults, get_config_value('Map_Default_Lat'), get_config_value('Map_Default_Lon'), get_config_value('Map_Default_Zoom'));
+        init_map_on_search_page(
+          is_reverse_search,
+          aResults,
+          get_config_value('Map_Default_Lat'),
+          get_config_value('Map_Default_Lon'),
+          get_config_value('Map_Default_Zoom')
+        );
 
         $('#q').focus();
 
@@ -568,7 +758,134 @@ jQuery(document).ready(function () {
     } else {
       render_template($('main'), 'searchpage-template', context);
 
-      init_map_on_search_page(is_reverse_search, [], get_config_value('Map_Default_Lat'), get_config_value('Map_Default_Lon'), get_config_value('Map_Default_Zoom'));
+      init_map_on_search_page(
+        is_reverse_search,
+        [],
+        get_config_value('Map_Default_Lat'),
+        get_config_value('Map_Default_Lon'),
+        get_config_value('Map_Default_Zoom')
+      );
+    }
+  }
+}
+
+
+// *********************************************************
+// DELETABLE PAGE
+// *********************************************************
+
+function deletable_page_load() {
+
+  var api_request_params = {
+    format: 'json'
+  };
+
+  fetch_from_api('deletable', api_request_params, function (aPolygons) {
+    var context = { aPolygons: aPolygons };
+
+    render_template($('main'), 'deletable-template', context);
+    update_html_title('Deletable objects');
+
+    update_data_date();
+  });
+}
+// *********************************************************
+// BROKEN POLYGON PAGE
+// *********************************************************
+
+function polygons_page_load() {
+  //
+  var api_request_params = {
+    format: 'json'
+  };
+
+  fetch_from_api('polygons', api_request_params, function (aPolygons) {
+    var context = { aPolygons: aPolygons };
+
+    render_template($('main'), 'polygons-template', context);
+    update_html_title('Broken polygons');
+
+    update_data_date();
+  });
+}
+jQuery(document).ready(function () {
+  var myhistory = [];
+
+  function parse_url_and_load_page() {
+    // 'search', 'reverse', 'details'
+    var pagename = window.location.pathname.replace('.html', '').replace(/^.*\//, '');
+
+    if (pagename === '') pagename = 'search';
+
+    $('body').attr('id', pagename + '-page');
+
+    if (pagename === 'search' || pagename === 'reverse') {
+      search_page_load();
+    } else if (pagename === 'details') {
+      details_page_load();
+    } else if (pagename === 'deletable') {
+      deletable_page_load();
+    } else if (pagename === 'polygons') {
+      polygons_page_load();
+    }
+  }
+
+  function is_relative_url(url) {
+    if (!url) return false;
+    if (url.indexOf('?') === 0) return true;
+    if (url.indexOf('/') === 0) return true;
+    if (url.indexOf('#') === 0) return false;
+    if (url.match(/^http/)) return false;
+    if (!url.match(/\.html/)) return true;
+
+    return false;
+  }
+
+  // remove any URL paramters with empty values
+  // '&empty=&filled=value' => 'filled=value'
+  function clean_up_url_parameters(url) {
+    var url_params = new URLSearchParams(url);
+    var to_delete = []; // deleting inside loop would skip iterations
+    url_params.forEach(function (value, key) {
+      if (value === '') to_delete.push(key);
+    });
+    for (var i = 0; i < to_delete.length; i += 1) {
+      url_params.delete(to_delete[i]);
     }
+    return url_params.toString();
   }
+
+  parse_url_and_load_page();
+
+  // load page after form submit
+  $(document).on('submit', 'form', function (e) {
+    e.preventDefault();
+
+    var target_url = $(this).serialize();
+    target_url = clean_up_url_parameters(target_url);
+
+    window.history.pushState(myhistory, '', '?' + target_url);
+
+    parse_url_and_load_page();
+  });
+
+  // load page after click on relative URL
+  $(document).on('click', 'a', function (e) {
+    var target_url = $(this).attr('href');
+    if (!is_relative_url(target_url)) return;
+    if ($(this).parents('#last-updated').length !== 0) return;
+
+    e.preventDefault();
+    e.stopPropagation();
+
+    window.history.pushState(myhistory, '', target_url);
+
+    parse_url_and_load_page();
+  });
+
+  // deal with back-button and other user action
+  window.onpopstate = function () {
+    parse_url_and_load_page();
+  };
 });
+