Disable the data browswer when the database is not available.

[rails.git] / app / views / export / start.rjs

diff --git a/app/views/export/start.rjs b/app/views/export/start.rjs
index 2796d92fe83b328abf779ff38580e5d752e8b57f..47cf9ce6bf21feddbcec4cc630233677fd30205c 100644 (file)
--- a/app/views/export/start.rjs
+++ b/app/views/export/start.rjs
@@ -3,6 +3,8 @@ page.replace_html :sidebar_content, :partial => 'start'
 page << <<EOJ
   var vectors;
   var box;
 page << <<EOJ
   var vectors;
   var box;

+  var markerLayer;
+  var markerControl;

 
   function startExport() {
     vectors = new OpenLayers.Layer.Vector("Vector Layer", {
 
   function startExport() {
     vectors = new OpenLayers.Layer.Vector("Vector Layer", {


@@ -12,24 +14,20 @@ page << <<EOJ
 
     box = new OpenLayers.Control.DrawFeature(vectors, OpenLayers.Handler.RegularPolygon, { 
       handlerOptions: {
 
     box = new OpenLayers.Control.DrawFeature(vectors, OpenLayers.Handler.RegularPolygon, { 
       handlerOptions: {

-        keyMask: OpenLayers.Handler.MOD_CTRL,

         sides: 4,
         snapAngle: 90,
         irregular: true,
         persist: true,
         sides: 4,
         snapAngle: 90,
         irregular: true,
         persist: true,

-        callbacks: { done: boxComplete }
+        callbacks: { done: endDrag }

       }
     });
     map.addControl(box);
 
       }
     });
     map.addControl(box);
 

-    box.activate();
-

     map.events.register("moveend", map, mapMoved);
     map.events.register("moveend", map, mapMoved);

+    map.events.register("changebaselayer", map, htmlUrlChanged);

 
     openSidebar({ onclose: stopExport });
 
 
     openSidebar({ onclose: stopExport });
 

-    updateRegion(map.getExtent());
-

     if (map.baseLayer.name == "Mapnik") {
       $("format_mapnik").checked = true;
     } else if (map.baseLayer.name == "Osmarender") {
     if (map.baseLayer.name == "Mapnik") {
       $("format_mapnik").checked = true;
     } else if (map.baseLayer.name == "Osmarender") {


@@ -37,6 +35,7 @@ page << <<EOJ
     }
 
     formatChanged();
     }
 
     formatChanged();

+    setBounds(map.getExtent());

 
     $("viewanchor").className = "";
     $("exportanchor").className = "active";
 
     $("viewanchor").className = "";
     $("exportanchor").className = "active";


@@ -46,41 +45,13 @@ page << <<EOJ
     $("viewanchor").className = "active";
     $("exportanchor").className = "";
 
     $("viewanchor").className = "active";
     $("exportanchor").className = "";
 

+    clearBox();
+    clearMarker();

     map.events.unregister("moveend", map, mapMoved);
     map.events.unregister("moveend", map, mapMoved);

-    box.handler.clear();
+    map.events.unregister("changebaselayer", map, htmlUrlChanged);

     map.removeLayer(vectors);
   }
 
     map.removeLayer(vectors);
   }
 

-  function formatChanged() {
-    if ($("format_osm").checked) {
-      $("export_osm").style.display = "inline";
-    } else {
-      $("export_osm").style.display = "none";
-    }
-
-    if ($("format_mapnik").checked) {
-      $("mapnik_scale").value = roundScale(map.getScale());
-      $("export_mapnik").style.display = "inline";
-
-      mapnikScaleChanged();
-    } else {
-      $("export_mapnik").style.display = "none";
-    }
-
-    if ($("format_osmarender").checked) {
-      var zoom = Math.min(map.getZoom(), maxOsmarenderZoom());
-
-      $("osmarender_zoom").options.selectedIndex = zoom - 4;
-      $("export_osmarender").style.display = "inline";
-    } else {
-      $("export_osmarender").style.display = "none";
-    }
-  }
-
-  $("format_osm").onclick = formatChanged;
-  $("format_mapnik").onclick = formatChanged;
-  $("format_osmarender").onclick = formatChanged;
-

   function boundsChanged() {
     var epsg4326 = new OpenLayers.Projection("EPSG:4326");
     var bounds = new OpenLayers.Bounds($("minlon").value,
   function boundsChanged() {
     var epsg4326 = new OpenLayers.Projection("EPSG:4326");
     var bounds = new OpenLayers.Bounds($("minlon").value,


@@ -93,11 +64,10 @@ page << <<EOJ
     map.events.unregister("moveend", map, mapMoved);
     map.zoomToExtent(bounds);
 
     map.events.unregister("moveend", map, mapMoved);
     map.zoomToExtent(bounds);
 

-    box.handler.clear();
-    box.handler.feature = new OpenLayers.Feature.Vector(bounds.toGeometry());
-    box.handler.layer.addFeatures([box.handler.feature], [box.handler.style]);
-    box.handler.layer.drawFeature(box.handler.feature, box.handler.style);
+    clearBox();
+    drawBox(bounds);

 
 

+    validateControls();

     mapnikSizeChanged();
   }
 
     mapnikSizeChanged();
   }
 


@@ -106,26 +76,120 @@ page << <<EOJ
   $("maxlon").onchange = boundsChanged;
   $("minlat").onchange = boundsChanged;
 
   $("maxlon").onchange = boundsChanged;
   $("minlat").onchange = boundsChanged;
 

-  function mapMoved() {
-    updateRegion(map.getExtent());
-  }
+  function startDrag() {
+    $("drag_box").innerHTML='Drag a box on the map to select an area';
+
+    clearBox();
+    box.activate();
+  };
+
+  $("drag_box").onclick = startDrag;
+
+  function endDrag(bbox) {
+    var bounds = bbox.getBounds();

 
 

-  function boxComplete(box) {

     map.events.unregister("moveend", map, mapMoved);
     map.events.unregister("moveend", map, mapMoved);

-    updateRegion(box.getBounds());
+    setBounds(bounds);
+    drawBox(bounds);
+    box.deactivate();
+    validateControls();
+
+    $("drag_box").innerHTML = "Manually select a different area";
+  }
+
+  function startMarker() {
+    $("add_marker").innerHTML='Click on the map to add a marker';
+
+    if (!markerLayer) {
+      markerLayer = new OpenLayers.Layer.Vector("",{
+        displayInLayerSwitcher: false,
+        style: { 
+          externalGraphic: OpenLayers.Util.getImagesLocation() + "marker.png",
+          graphicXOffset: -10.5,
+          graphicYOffset: -25, 
+          graphicWidth: 21,
+          graphicHeight: 25
+        } 
+      });
+      map.addLayer(markerLayer);
+
+      markerControl = new OpenLayers.Control.DrawFeature(markerLayer, OpenLayers.Handler.Point);
+      map.addControl(markerControl);
+
+      markerLayer.events.on({ "featureadded": endMarker });
+    }
+
+    markerLayer.destroyFeatures();
+    markerControl.activate();
+
+    return false;
+  }
+
+  $("add_marker").onclick = startMarker;
+
+  function endMarker(event) {
+    markerControl.deactivate();
+
+    $("add_marker").innerHTML = "Change marker position";
+    $("marker_inputs").style.display = "block";
+    
+    var epsg4326 = new OpenLayers.Projection("EPSG:4326");
+    var epsg900913 = new OpenLayers.Projection("EPSG:900913");
+    var geom = event.feature.geometry.clone().transform(epsg900913, epsg4326);
+
+    $("marker_lon").value = geom.x.toFixed(5);
+    $("marker_lat").value = geom.y.toFixed(5);
+
+    htmlUrlChanged(); 
+  }
+
+  function clearMarker() {
+    $("marker_lon").value = "";
+    $("marker_lat").value = "";
+    $("marker_inputs").style.display = "none";
+    $("add_marker").innerHTML = "Add a marker to the map";
+
+    if (markerLayer) { 
+      markerControl.destroy();
+      markerLayer.destroy();
+      markerLayer = null;
+      markerControl = null;
+    }
+  }  
+
+  function mapMoved() {
+    setBounds(map.getExtent());
+    validateControls();

   }
 
   }
 

-  function updateRegion(bounds) {
+  function setBounds(bounds) {

     var epsg4326 = new OpenLayers.Projection("EPSG:4326");
     var decimals = Math.pow(10, Math.floor(map.getZoom() / 3));
 
     var epsg4326 = new OpenLayers.Projection("EPSG:4326");
     var decimals = Math.pow(10, Math.floor(map.getZoom() / 3));
 

-    bounds.transform(map.getProjectionObject(), epsg4326);
+    bounds = bounds.clone().transform(map.getProjectionObject(), epsg4326);

 
     $("minlon").value = Math.round(bounds.left * decimals) / decimals;
     $("minlat").value = Math.round(bounds.bottom * decimals) / decimals;
     $("maxlon").value = Math.round(bounds.right * decimals) / decimals;
     $("maxlat").value = Math.round(bounds.top * decimals) / decimals;
 
 
     $("minlon").value = Math.round(bounds.left * decimals) / decimals;
     $("minlat").value = Math.round(bounds.bottom * decimals) / decimals;
     $("maxlon").value = Math.round(bounds.right * decimals) / decimals;
     $("maxlat").value = Math.round(bounds.top * decimals) / decimals;
 

+    mapnikSizeChanged();
+    htmlUrlChanged();
+  }
+
+  function clearBox() {
+    vectors.destroyFeatures();
+  }
+
+  function drawBox(bounds) {
+    var feature = new OpenLayers.Feature.Vector(bounds.toGeometry());
+
+    vectors.addFeatures(feature);
+  }
+
+  function validateControls() {
+    var bounds = new OpenLayers.Bounds($("minlon").value, $("minlat").value, $("maxlon").value, $("maxlat").value);
+

     if (bounds.getWidth() * bounds.getHeight() > 0.25) {
       $("format_osm").disabled = true;
       $("format_osm").checked = false;
     if (bounds.getWidth() * bounds.getHeight() > 0.25) {
       $("format_osm").disabled = true;
       $("format_osm").checked = false;


@@ -133,13 +197,18 @@ page << <<EOJ
     } else {
       $("format_osm").disabled = false;
     }
     } else {
       $("format_osm").disabled = false;
     }

-    
-    var max_zoom = maxOsmarenderZoom();
+

     var max_scale = maxMapnikScale();
 
     var max_scale = maxMapnikScale();
 

-    $("mapnik_max_scale").innerHTML = roundScale(max_scale);
+    if ($("format_mapnik").checked && $("mapnik_scale").value < max_scale) {
+      $("export_commit").disabled = true;
+    } else {
+      $("export_commit").disabled = false;
+    }

 
 

-    mapnikScaleChanged();
+    $("mapnik_max_scale").innerHTML = roundScale(max_scale);
+  
+    var max_zoom = maxOsmarenderZoom();

 
     for (var o = 0; o < $("osmarender_zoom").options.length; o++) {
       var option = $("osmarender_zoom").options[o];
 
     for (var o = 0; o < $("osmarender_zoom").options.length; o++) {
       var option = $("osmarender_zoom").options[o];


@@ -156,6 +225,80 @@ page << <<EOJ
     }
   }
 
     }
   }
 

+  function htmlUrlChanged() {
+    var bounds = new OpenLayers.Bounds($("minlon").value, $("minlat").value, $("maxlon").value, $("maxlat").value);
+    var layerName = map.baseLayer.name.toLowerCase();
+    var url = "http://#{SERVER_URL}/export/embed.html?bbox=" + bounds.toBBOX() + "&layer=" + layerName;
+    var markerUrl = "";
+
+    if ($("marker_lat").value && $("marker_lon").value) {
+      markerUrl = "&mlat=" + $("marker_lat").value + "&mlon=" + $("marker_lon").value;
+      url += "&marker=" + $("marker_lat").value + "," + $("marker_lon").value;
+    } 
+    
+    var html = '<iframe width="425" height="350" frameborder="0" scrolling="no" marginheight="0" marginwidth="0" src="'+url+'" style="border: 1px solid black"></iframe>';
+   
+    // Create "larger map" link
+    var center = bounds.getCenterLonLat();
+    var epsg4326 = new OpenLayers.Projection("EPSG:4326");
+    var epsg900913 = new OpenLayers.Projection("EPSG:900913");
+
+    bounds.transform(epsg4326, epsg900913);
+    var zoom = map.getZoomForExtent(bounds);
+    
+    var layers = getMapLayers();
+
+    html += '<br /><small><a href="http://#{SERVER_URL}/?lat='+center.lat+'&lon='+center.lon+'&zoom='+zoom+'&layers='+layers+markerUrl+'">View Larger Map</a></small>';
+
+    $("export_html_text").value = html;
+
+    if ($("format_html").checked) {
+      $("export_html_text").select();
+    }
+  }
+
+  function formatChanged() {
+    $("export_commit").style.display = "inline";
+
+    if ($("format_osm").checked) {
+      $("export_osm").style.display = "inline";
+    } else {
+      $("export_osm").style.display = "none";
+    }
+
+    if ($("format_mapnik").checked) {
+      $("mapnik_scale").value = roundScale(map.getScale());
+      $("export_mapnik").style.display = "inline";
+    } else {
+      $("export_mapnik").style.display = "none";
+    }
+
+    if ($("format_osmarender").checked) {
+      var zoom = Math.min(map.getZoom(), maxOsmarenderZoom());
+
+      $("osmarender_zoom").options.selectedIndex = zoom - 4;
+      $("export_osmarender").style.display = "inline";
+    } else {
+      $("export_osmarender").style.display = "none";
+    }
+
+    if ($("format_html").checked) { 
+      $("export_html").style.display = "inline";
+      $("export_commit").style.display = "none";
+      $("export_html_text").select();
+    } else {
+      $("export_html").style.display = "none";
+      clearMarker();
+    }
+        
+    validateControls();
+  }
+
+  $("format_osm").onclick = formatChanged;
+  $("format_mapnik").onclick = formatChanged;
+  $("format_osmarender").onclick = formatChanged;
+  $("format_html").onclick = formatChanged;
+

   function maxMapnikScale() {
     var bounds = new OpenLayers.Bounds($("minlon").value, $("minlat").value, $("maxlon").value, $("maxlat").value);
     var epsg4326 = new OpenLayers.Projection("EPSG:4326");
   function maxMapnikScale() {
     var bounds = new OpenLayers.Bounds($("minlon").value, $("minlat").value, $("maxlon").value, $("maxlat").value);
     var epsg4326 = new OpenLayers.Projection("EPSG:4326");


@@ -202,12 +345,7 @@ page << <<EOJ
 
   function mapnikScaleChanged() {
     mapnikSizeChanged();
 
   function mapnikScaleChanged() {
     mapnikSizeChanged();

-
-    if ($("mapnik_scale").value < maxMapnikScale()) {
-      $("export_commit").disabled = true;
-    } else {
-      $("export_commit").disabled = false;
-    }
+    validateControls();

   }
 
   $("mapnik_scale").onchange = mapnikScaleChanged;
   }
 
   $("mapnik_scale").onchange = mapnikScaleChanged;