Limit Osmarender zoom to 17 levels.

[rails.git] / app / views / site / index.rhtml

diff --git a/app/views/site/index.rhtml b/app/views/site/index.rhtml
index bed35e36f1386167604840b28b7abfc9ba8be878..b8fcf579ee2c6071d78257eb204210052ad97456 100644 (file)
--- a/app/views/site/index.rhtml
+++ b/app/views/site/index.rhtml
@@ -1,114 +1,221 @@
+<% content_for :greeting do %>
+<% if @user and !@user.home_lon.nil? and !@user.home_lat.nil? %>
+<%= link_to_function 'home', "setPosition(#{@user.home_lat}, #{@user.home_lon}, 10)" %> |
+<% end %>
+<% end %>

 
 

+<%= render :partial => 'sidebar', :locals => { :onopen => "resizeMap();", :onclose => "resizeMap();" } %>
+<%= render :partial => 'key' %>
+<%= render :partial => 'search' %>

 
 

-<div id="geocoder">
-  <%= start_form_tag :controller => 'geocoder', :action => 'search' %>
-  <%= text_field 'query', 'postcode'%>
-  <%= text_field 'query', 'place_name'%>
-  <%= submit_tag 'Search' %>
-  <%= end_form_tag %>
-
-  <div id="geocoder-attribution">
-    Geolocation provided by <a href="http://npemap.org.uk/">npemap.org.uk</a>,
-    <a href="http://geocoder.us/">geocoder.us</a>, <a href="http://geocoder.ca/">geocoder.ca</a>
-    and <a href="http://www.geonames.org/">geonames.org</a>
-  </div>
-  <div id="postcode-helper">
-    eg: SW15 6JH, 95472 or H2L4C1
-  </div>
-  <div id="placename-helper">
-    eg:Essen
+<noscript>
+  <div id="noscript">
+    <p>You are either using a browser that doesn't support javascript, or you have disabled javascript.</p>
+    <p>OpenStreetMap uses javascript for its slippy map.</p>
+    <p>You may want to try the <a href="http://tah.openstreetmap.org/Browse/">Tiles@Home static tile browser</a> if you are unable to enable javascript.</p>

   </div>
   </div>

+</noscript>
+
+<div id="map">
+<div id="permalink"><a href="/" id="permalinkanchor">Permalink</a></div>
+</div> 
+
+<div id="attribution">
+  <table width="100%">
+    <tr>
+      <td align="left">http://creativecommons.org/licenses/by-sa/2.0/</td>
+      <td align="right">http://openstreetmap.org/</td>
+    </tr>
+    <tr>
+      <td colspan="2" align="center">Licensed under the Creative Commons Attribution-Share Alike 2.0 license by the OpenStreetMap project and its contributors.</td>
+    </tr>
+  </table>

 </div>
 
 </div>
 

-<% if params['mlon'] and params['mlat'] %>
-<% marker = true %>
-<% mlon = params['mlon'] %> 
-<% mlat = params['mlat'] %>
-<% lon =  params['mlon'] %>
-<% lat =  params['mlat']  %>
-<% zoom =  params['zoom'] || '12' %>
-<script type="text/javascript">
-  var mlat = <%= lat %>;
-  var mlon = <%= lon %>;
-</script>
-<% elsif @user and params['lon'].nil? and params['lat'].nil? %> 
-<% lon =  @user.home_lon %>
-<% lat =  @user.home_lat %>
-<% zoom = '10' %>
-<%else%>
-<% lon =  params['lon'] || '-0.1' %>
-<% lat =  params['lat'] || '51.5' %>
-<% zoom =  params['zoom'] || '4' %>
-<% end %>
-
-
-
-<script type="text/javascript">
-  var lat = <%= lat %>;
-  var lon = <%= lon %>;
-  var zoom = <%= zoom %>;
-  var PI = 3.14159265358979323846;
-
-
-
-  <% if params['scale'] and params['scale'].length > 0 then %>
-  zoom = Math.log(360.0/(( <% print params['scale'].to_f() %> ) * 512.0)) / Math.log(2.0);
-  <% end %>
-  zoom = zoom;
-  lon = lon * 20037508.34 / 180;
-  lat = Math.log(Math.tan( (90 + lat) * PI / 360)) / (PI / 180);
-  lat = lat * 20037508.34 / 180;
-  <% if marker %>
-  mlon = mlon * 20037508.34 / 180;
-  mlat = Math.log(Math.tan( (90 + mlat) * PI / 360)) / (PI / 180);
-  mlat = mlat * 20037508.34 / 180;
-  <%end%>
+<%
+if params['mlon'] and params['mlat'] 
+       marker = true
+       mlon = h(params['mlon'])
+       mlat = h(params['mlat'])
+end
+
+if params['minlon'] and params['minlat'] and params['maxlon'] and params['maxlat']
+       bbox = true
+       minlon = h(params['minlon'])
+       minlat = h(params['minlat'])
+       maxlon = h(params['maxlon'])
+       maxlat = h(params['maxlat'])
+       box = true if params['box']=="yes" 
+end
+
+# Decide on a lat lon to initialise the map with. Various ways of doing this
+if params['lon'] and params['lat'] 
+       lon =  h(params['lon'])
+       lat =  h(params['lat'])
+       zoom =  h(params['zoom'] || '5')
+       layers = h(params['layers'])
+       
+elsif params['mlon'] and params['mlat']
+       lon = h(params['mlon']) 
+       lat = h(params['mlat'])
+       zoom =  h(params['zoom'] || '12')
+       layers = h(params['layers'])
+       
+elsif cookies.key?("_osm_location")
+       lon,lat,zoom,layers = cookies["_osm_location"].split("|")
+       
+elsif @user and !@user.home_lon.nil? and !@user.home_lat.nil? 
+       lon =  @user.home_lon
+       lat =  @user.home_lat
+       zoom = '10'
+else
+       session[:location] = OSM::IPLocation(request.env['REMOTE_ADDR']) unless session[:location]
+
+       if session[:location]
+               bbox = true
+               minlon = session[:location][:minlon]
+               minlat = session[:location][:minlat]
+               maxlon = session[:location][:maxlon]
+               maxlat = session[:location][:maxlat]
+       else
+               lon =  '-0.1' 
+               lat =  '51.5' 
+               zoom =  h(params['zoom'] || '5') 
+       end
+       layers = h(params['layers']) 
+end
+%>
+
+<%= javascript_include_tag '/openlayers/OpenLayers.js' %>
+<%= javascript_include_tag '/openlayers/OpenStreetMap.js' %>
+<%= javascript_include_tag 'map.js' %>
+
+
+<script type="text/javascript" defer="defer">
+  <!--
+  var brokenContentSize = $("content").offsetWidth == 0;
+  var marker;
+  var map;
+
+  function mapInit(){
+    map = createMap("map");
+
+    <% unless OSM_STATUS == :api_offline or OSM_STATUS == :database_offline %>
+    map.dataLayer = new OpenLayers.Layer("Data", { "visibility": false });
+    map.dataLayer.events.register("visibilitychanged", map.dataLayer, toggleData);
+    map.addLayer(map.dataLayer);
+    <% end %>
+
+    <% if bbox %>
+    var bbox = new OpenLayers.Bounds(<%= minlon %>, <%= minlat %>, <%= maxlon %>, <%= maxlat %>);
+
+    setMapExtent(bbox);
+    <%    if box %>
+    // IE requires Vector layers be initialised on page load, and not under deferred script conditions
+    Event.observe(window, 'load', function() {addBoxToMap(bbox)});
+    <%    end %>
+    <% else %>
+    var centre = new OpenLayers.LonLat(<%= lon %>, <%= lat %>);
+    var zoom = <%= zoom %>;
+
+    <%    if params['scale'] and params['scale'].length > 0 then %>
+    zoom = scaleToZoom(<%= params['scale'].to_f() %>);
+    <%    end %>
+
+    setMapCenter(centre, zoom);
+    <% end %>
+
+    <% if !layers.nil? and !layers.empty? %>
+    setMapLayers("<%= layers %>");
+    <% end %>

 
 

-</script>
-<script type="text/javascript" src="/javascripts/OpenLayers.js"></script>
+    <% if marker %>
+    marker = addMarkerToMap(new OpenLayers.LonLat(<%= mlon %>, <%= mlat %>));
+    <% end %>

 
 

-<script type="text/javascript">
-  <!--
-  var map, layer, markers;
+    map.events.register("zoomend", map, updateKey);

 
 

+    map.events.register("moveend", map, updateLocation);
+    map.events.register("changelayer", map, updateLocation);
+    updateLocation();

 
 

-  function init(){
+    handleResize();
+  }

 
 

-    OpenLayers.Util.onImageLoadError = function() {
-      this.src = "http://www.openstreetmap.org/javascript/img/404.png";
+  function toggleData() {
+    if (map.dataLayer.visibility) {
+      <%= remote_function :url => { :controller => 'browse', :action => 'start' } %>
+    } else {
+      closeSidebar();
+    }
+  }
+
+  function getPosition() {
+    return getMapCenter();
+  }
+
+  function setPosition(lat, lon, zoom) {
+    var centre = new OpenLayers.LonLat(lon, lat);
+
+    setMapCenter(centre, zoom);
+
+    if (marker)
+      removeMarkerFromMap(marker);
+
+    marker = addMarkerToMap(centre, getArrowIcon());
+  }
+
+  function updateLocation() {
+    var lonlat = getMapCenter();
+    var zoom = map.getZoom();
+    var layers = getMapLayers();
+    var extents = getMapExtent();
+
+    updatelinks(lonlat.lon, lonlat.lat, zoom, layers, extents.left, extents.bottom, extents.right, extents.top);
+      
+    document.cookie = "_osm_location=" + lonlat.lon + "|" + lonlat.lat + "|" + zoom + "|" + layers;
+  }
+
+  function resizeContent() {
+    var content = $("content");
+    var rightMargin = parseInt(getStyle(content, "right"));
+    var bottomMargin = parseInt(getStyle(content, "bottom"));
+
+    content.style.width = document.documentElement.clientWidth - content.offsetLeft - rightMargin;
+    content.style.height = document.documentElement.clientHeight - content.offsetTop - bottomMargin;
+  }
+  
+  function resizeMap() {
+    var centre = map.getCenter();
+    var zoom = map.getZoom();
+    var sidebar_width = $("sidebar").offsetWidth;
+
+    if (sidebar_width > 0) {
+      sidebar_width = sidebar_width + 5

     }
     }

-    map = new OpenLayers.Map( "map", 
-        {maxExtent: new OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34), maxZoomLevel:18, maxResolution:156543, units:'meters', projection: "EPSG:41001"} );
-    layer = new OpenLayers.Layer.LikeGoogle( "Mapnik", "http://tile.openstreetmap.org/", {type:'png'} );
-    map.addLayer(layer);
-    layer = new OpenLayers.Layer.LikeGoogle( "Osmarender", "http://dev.openstreetmap.org/~ojw/Tiles/tile.php/", {type:'png'} );
-    map.addLayer(layer);
-
-    //Marker stuff

 
 

-    <% if marker %>
-    markers = new OpenLayers.Layer.Markers("markers");
-    map.addLayer(markers); 
+    $("map").style.left = (sidebar_width) + "px";
+    $("map").style.width = ($("content").offsetWidth - sidebar_width) + "px";
+    $("map").style.height = ($("content").offsetHeight - 2) + "px";

 
 

-    marker = new OpenLayers.Marker(new OpenLayers.LonLat(mlon,mlat));
-    markers.addMarker(marker);
-    <%end%>
+    map.setCenter(centre, zoom);
+  }

 
 

-      map.addControl(new OpenLayers.Control.LayerSwitcher());
-    map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);
+  function handleResize() {
+    if (brokenContentSize) {
+      resizeContent();
+    }

 
 

-    map.events.register("moveend", map, function() { 
-        var lonlat = map.getCenter();
+    resizeMap();
+  }
+  
+  mapInit();

 
 

-        var lon_deg = (lonlat.lon / 20037508.34) * 180;
-        var lat_deg = (lonlat.lat / 20037508.34) * 180;
-        var PI = 3.14159265358979323846;
-        lat_deg = 180/PI * (2 * Math.atan(Math.exp(lat_deg * PI / 180)) - PI / 2);
-        var zoom = map.getZoom();
-        updatelinks(lon_deg,lat_deg,zoom);
-        });
-  }        
+  window.onload = handleResize;
+  window.onresize = handleResize;

 
 

-init();
+  <% if params['action'] == 'export' %>
+  <%= remote_function :url => { :controller => 'export', :action => 'start' } %>
+  <% end %>

 // -->
 </script>
 // -->
 </script>