Abort any existing load before starting a new one

[rails.git] / app / assets / javascripts / browse.js

diff --git a/app/assets/javascripts/browse.js b/app/assets/javascripts/browse.js
index b7e9c01d552dfd4215452f9dbdc1d1b2c1b3e025..2934b8bd92593c28fa45a2287c896f5e65d71fb3 100644 (file)
--- a/app/assets/javascripts/browse.js
+++ b/app/assets/javascripts/browse.js
@@ -1,549 +1,107 @@
-function startBrowse(sidebarHtml) {
-  var browseBoxControl;
-  var browseMode = "auto";
-  var browseBounds;
-  var browseFeatureList;
-  var browseActiveFeature;
-  var browseDataLayer;
-  var browseSelectControl;
-  var browseObjectList;
-  var areasHidden = false;
-
-  OpenLayers.Feature.Vector.style['default'].strokeWidth = 3;
-  OpenLayers.Feature.Vector.style['default'].cursor = "pointer";
-
-  map.dataLayer.active = true;
-
-  $("#sidebar_title").html(I18n.t('browse.start_rjs.data_frame_title'));
-  $("#sidebar_content").html(sidebarHtml);
-
-  openSidebar({ onclose: stopBrowse });
-
-  var vectors = new OpenLayers.Layer.Vector();
-    
-  browseBoxControl = new OpenLayers.Control.DrawFeature(vectors, OpenLayers.Handler.RegularPolygon, { 
-    handlerOptions: {
-      sides: 4,
-      snapAngle: 90,
-      irregular: true,
-      persist: true
-    }
-  });
-  browseBoxControl.handler.callbacks.done = endDrag;
-  map.addControl(browseBoxControl);
-
-  map.events.register("moveend", map, updateData);
-  map.events.triggerEvent("moveend");
-
-  $("#browse_select_view").click(useMap);
-
-  $("#browse_select_box").click(startDrag);
-
-  $("#browse_hide_areas_box").html(I18n.t('browse.start_rjs.hide_areas'));
-  $("#browse_hide_areas_box").show();
-  $("#browse_hide_areas_box").click(hideAreas);
-
-  function updateData() {
-    if (browseMode == "auto") {
-      if (map.getZoom() >= 15) {
-          useMap(false);
-      } else {
-          setStatus(I18n.t('browse.start_rjs.zoom_or_select'));
-      }
-    }
-  }
-
-  function stopBrowse() {
-    if (map.dataLayer.active) {
-      map.dataLayer.active = false;
-
-      if (browseSelectControl) {
-        browseSelectControl.destroy();
-        browseSelectControl = null;
-      }
-
-      if (browseBoxControl) {
-        browseBoxControl.destroy();
-        browseBoxControl = null;
-      }
-
-      if (browseActiveFeature) {
-        browseActiveFeature.destroy();
-        browseActiveFeature = null;
-      }
-
-      if (browseDataLayer) {
-        browseDataLayer.destroy();
-        browseDataLayer = null;
-      }
-
-      map.dataLayer.setVisibility(false);
-      map.events.unregister("moveend", map, updateData);
-    }
-  }
-
-  function startDrag() {
-    $("#browse_select_box").html(I18n.t('browse.start_rjs.drag_a_box'));
-
-    browseBoxControl.activate();
-
-    return false;
-  }
-
-  function useMap(reload) {
-    var bounds = map.getExtent();
-    var projected = bounds.clone().transform(map.getProjectionObject(), epsg4326);
-
-    if (!browseBounds || !browseBounds.containsBounds(projected)) {
-      var center = bounds.getCenterLonLat();
-      var tileWidth = bounds.getWidth() * 1.2;
-      var tileHeight = bounds.getHeight() * 1.2;
-      var tileBounds = new OpenLayers.Bounds(center.lon - (tileWidth / 2),
-                                             center.lat - (tileHeight / 2),
-                                             center.lon + (tileWidth / 2),
-                                             center.lat + (tileHeight / 2));
-
-      browseBounds = tileBounds;
-      getData(tileBounds, reload);
-
-      browseMode = "auto";
-
-      $("#browse_select_view").hide();
-    }
-
-    return false;
-  }
-
-  function hideAreas() {
-    $("#browse_hide_areas_box").html(I18n.t('browse.start_rjs.show_areas'));
-    $("#browse_hide_areas_box").show();
-    $("#browse_hide_areas_box").click(showAreas);
-
-    areasHidden = true;
-
-    useMap(true);
-  }
-
-  function showAreas() {
-    $("#browse_hide_areas_box").html(I18n.t('browse.start_rjs.hide_areas'));
-    $("#browse_hide_areas_box").show();
-    $("#browse_hide_areas_box").click(hideAreas);
-
-    areasHidden = false;
-
-    useMap(true);
-  }
-
-  function endDrag(bbox) {
-    var bounds = bbox.getBounds();
-    var projected = bounds.clone().transform(map.getProjectionObject(), epsg4326);
-
-    browseBoxControl.deactivate();
-    browseBounds = projected;
-    getData(bounds);
-
-    browseMode = "manual";
-
-    $("#browse_select_box").html(I18n.t('browse.start_rjs.manually_select'));
-    $("#browse_select_view").show();
-  }
-
-  function displayFeatureWarning(count, limit, callback) {
-    clearStatus();
-
-    var div = document.createElement("div");
-
-    var p = document.createElement("p");
-    p.appendChild(document.createTextNode(I18n.t("browse.start_rjs.loaded_an_area_with_num_features", { num_features: count, max_features: limit })));
-    div.appendChild(p);
-
-    var input = document.createElement("input");
-    input.type = "submit";
-    input.value = I18n.t('browse.start_rjs.load_data');
-    input.onclick = callback;
-    div.appendChild(input);
-
-    $("#browse_content").html("");
-    $("#browse_content").append(div);
-  }
-
-  function customDataLoader(resp, options) {
-    if (map.dataLayer.active) {
-      var request = resp.priv;
-      var doc = request.responseXML;
-
-      if (!doc || !doc.documentElement) {
-        doc = request.responseText;
-      }
-
-      resp.features = this.format.read(doc);
-
-      if (!this.maxFeatures || resp.features.length <= this.maxFeatures) {
-        options.callback.call(options.scope, resp);
-      } else {
-        displayFeatureWarning(resp.features.length, this.maxFeatures, function () {
-          options.callback.call(options.scope, resp);
-        });
-      }
-    }
-  }
-
-  function getData(bounds, reload) {
-    var projected = bounds.clone().transform(new OpenLayers.Projection("EPSG:900913"), new OpenLayers.Projection("EPSG:4326"));
-    var size = projected.getWidth() * projected.getHeight();
-
-    if (size > OSM.MAX_REQUEST_AREA) {
-      setStatus(I18n.t("browse.start_rjs.unable_to_load_size", { max_bbox_size: OSM.MAX_REQUEST_AREA, bbox_size: size }));
+$(document).ready(function () {
+  function remoteEditHandler(bbox, select) {
+    var left = bbox.getWestLng() - 0.0001;
+    var top = bbox.getNorthLat() + 0.0001;
+    var right = bbox.getEastLng() + 0.0001;
+    var bottom = bbox.getSouthLat() - 0.0001;
+    var loaded = false;
+
+    $("#linkloader").load(function () { loaded = true; });
+
+    if (select) {
+      $("#linkloader").attr("src", "http://127.0.0.1:8111/load_and_zoom?left=" + left + "&top=" + top + "&right=" + right + "&bottom=" + bottom + "&select=" + select);

     } else {
     } else {

-      loadData("/api/" + OSM.API_VERSION + "/map?bbox=" + projected.toBBOX(), reload);
+      $("#linkloader").attr("src", "http://127.0.0.1:8111/load_and_zoom?left=" + left + "&top=" + top + "&right=" + right + "&bottom=" + bottom);

     }
     }

-  }
-
-  function loadData(url, reload) {
-    setStatus(I18n.t('browse.start_rjs.loading'));
-
-    $("#browse_content").empty();
-
-    var formatOptions = {
-      checkTags: true,
-      interestingTagsExclude: ['source','source_ref','source:ref','history','attribution','created_by','tiger:county','tiger:tlid','tiger:upload_uuid']
-    };
-
-    if (areasHidden) formatOptions.areaTags = [];
-
-    if (!browseDataLayer || reload) {
-      var style = new OpenLayers.Style();
-
-      style.addRules([new OpenLayers.Rule({
-        symbolizer: {
-          Polygon: { fillColor: '#ff0000', strokeColor: '#ff0000' },
-          Line: { fillColor: '#ffff00', strokeColor: '#000000', strokeOpacity: '0.4' },
-          Point: { fillColor: '#00ff00', strokeColor: '#00ff00' }
-        }
-      })]);
-
-      if (browseDataLayer) browseDataLayer.destroyFeatures();

 
 

-      /*
-       * Modern browsers are quite happy showing far more than 100 features in
-       * the data browser, so increase the limit to 2000 by default, but keep
-       * it restricted to 500 for IE8 and 100 for older IEs.
-       */
-      var maxFeatures = 2000;
-
-      /*@cc_on
-        if (navigator.appVersion < 8) {
-          maxFeatures = 100;
-        } else if (navigator.appVersion < 9) {
-          maxFeatures = 500;
-        }
-      @*/
-
-      browseDataLayer = new OpenLayers.Layer.Vector("Data", {
-        strategies: [
-          new OpenLayers.Strategy.Fixed()
-        ],
-        protocol: new OpenLayers.Protocol.HTTP({
-          url: url,
-          format: new OpenLayers.Format.OSM(formatOptions),
-          maxFeatures: maxFeatures,
-          handleRead: customDataLoader
-        }),
-        projection: new OpenLayers.Projection("EPSG:4326"),
-        displayInLayerSwitcher: false,
-        styleMap: new OpenLayers.StyleMap({
-          'default': style,
-          'select': { strokeColor: '#0000ff', strokeWidth: 8 }
-        })
-      });
-      browseDataLayer.events.register("loadend", browseDataLayer, dataLoaded );
-      map.addLayer(browseDataLayer);
-
-      browseSelectControl = new OpenLayers.Control.SelectFeature(browseDataLayer, { onSelect: onFeatureSelect });
-      browseSelectControl.handlers.feature.stopDown = false;
-      browseSelectControl.handlers.feature.stopUp = false;
-      map.addControl(browseSelectControl);
-      browseSelectControl.activate();
-    } else {
-      browseDataLayer.destroyFeatures();
-      browseDataLayer.refresh({ url: url });
-    }
-
-    browseActiveFeature = null;
-  }
-
-  function dataLoaded() {
-    if (this.map.dataLayer.active) {
-      clearStatus();
-
-      browseObjectList = document.createElement("div");
-
-      var heading = document.createElement("p");
-      heading.className = "browse_heading";
-      heading.appendChild(document.createTextNode(I18n.t('browse.start_rjs.object_list.heading')));
-      browseObjectList.appendChild(heading);
-
-      var list = document.createElement("ul");
-
-      for (var i = 0; i < this.features.length; i++) {
-        var feature = this.features[i];
-
-        // Type, for linking
-        var type = featureType(feature);
-        var typeName = featureTypeName(feature);
-        var li = document.createElement("li");
-        li.appendChild(document.createTextNode(typeName + " "));
-
-        // Link, for viewing in the tab
-        var link = document.createElement("a");
-        link.href =  "/browse/" + type + "/" + feature.osm_id;
-        var name = featureName(feature);
-        link.appendChild(document.createTextNode(name));
-        link.feature = feature;
-        link.onclick = OpenLayers.Function.bind(viewFeatureLink, link);
-        li.appendChild(link);
-
-        list.appendChild(li);
-      }
-
-      browseObjectList.appendChild(list);
-
-      var link = document.createElement("a");
-      link.href = this.protocol.url;
-      link.appendChild(document.createTextNode(I18n.t('browse.start_rjs.object_list.api')));
-      browseObjectList.appendChild(link);
-
-      $("#browse_content").html(browseObjectList);
-    }
-  }
-
-  function viewFeatureLink() {
-    var layer = this.feature.layer;
-
-    for (var i = 0; i < layer.selectedFeatures.length; i++) {
-      var f = layer.selectedFeatures[i];
-      layer.drawFeature(f, layer.styleMap.createSymbolizer(f, "default"));
-    }
-
-    onFeatureSelect(this.feature);
-
-    if (browseMode != "auto") {
-      map.setCenter(this.feature.geometry.getBounds().getCenterLonLat());
-    }
-
-    return false;
-  }
-
-  function loadObjectList() {
-    $("#browse_content").empty();
-    $("#browse_content").append(browseObjectList);
+    setTimeout(function () {
+      if (!loaded) alert(I18n.t('site.index.remote_failed'));
+    }, 1000);

 
     return false;
   }
 
 
     return false;
   }
 

-  function onFeatureSelect(feature) {
-    // Unselect previously selected feature
-    if (browseActiveFeature) {
-      browseActiveFeature.layer.drawFeature(
-        browseActiveFeature,
-        browseActiveFeature.layer.styleMap.createSymbolizer(browseActiveFeature, "default")
-      );
-    }
-
-    // Redraw in selected style
-    feature.layer.drawFeature(
-      feature, feature.layer.styleMap.createSymbolizer(feature, "select")
-    );
-
-    // If the current object is the list, don't innerHTML="", since that could clear it.
-    if ($("#browse_content").firstChild == browseObjectList) {
-      $("#browse_content").removeChild(browseObjectList);
-    } else {
-      $("#browse_content").empty();
-    }
-
-    // Create a link back to the object list
-    var div = document.createElement("div");
-    div.style.textAlign = "center";
-    div.style.marginBottom = "20px";
-    $("#browse_content").append(div);
-    var link = document.createElement("a");
-    link.href = "#";
-    link.onclick = loadObjectList;
-    link.appendChild(document.createTextNode(I18n.t('browse.start_rjs.object_list.back')));
-    div.appendChild(link);
-
-    var table = document.createElement("table");
-    table.width = "100%";
-    table.className = "browse_heading";
-    $("#browse_content").append(table);
-
-    var tr = document.createElement("tr");
-    table.appendChild(tr);
-
-    var heading = document.createElement("td");
-    heading.appendChild(document.createTextNode(featureNameSelect(feature)));
-    tr.appendChild(heading);
-
-    var td = document.createElement("td");
-    td.align = "right";
-    tr.appendChild(td);
-
-    var type = featureType(feature);
-    var link = document.createElement("a");
-    link.href = "/browse/" + type + "/" + feature.osm_id;
-    link.appendChild(document.createTextNode(I18n.t('browse.start_rjs.object_list.details')));
-    td.appendChild(link);
-
-    var div = document.createElement("div");
-    div.className = "browse_details";
-
-    $("#browse_content").append(div);
-
-    // Now the list of attributes
-    var ul = document.createElement("ul");
-    for (var key in feature.attributes) {
-      var li = document.createElement("li");
-      var b = document.createElement("b");
-      b.appendChild(document.createTextNode(key));
-      li.appendChild(b);
-      li.appendChild(document.createTextNode(": " + feature.attributes[key]));
-      ul.appendChild(li);
-    }
-
-    div.appendChild(ul);
-
-    var link = document.createElement("a");
-    link.href =  "/browse/" + type + "/" + feature.osm_id + "/history";
-    link.appendChild(document.createTextNode(I18n.t('browse.start_rjs.show_history')));
-    link.onclick = OpenLayers.Function.bind(loadHistory, {
-      type: type, feature: feature, link: link
-    });
+  var map = createMap("small_map", {
+    layerControl: false,
+    panZoomControl: false,
+    attributionControl: false
+  });

 
 

-    div.appendChild(link);
+  var params = $("#small_map").data();
+  if (params.type == "changeset") {
+    var bbox = L.latLngBounds([params.minlat, params.minlon],
+                              [params.maxlat, params.maxlon]);

 
 

-    // Stash the currently drawn feature
-    browseActiveFeature = feature;
-  }
+    map.fitBounds(bbox);
+    addBoxToMap(bbox);

 
 

-  function loadHistory() {
-    this.link.href = "";
-    this.link.innerHTML = I18n.t('browse.start_rjs.wait');
+    $("#loading").hide();
+    $("#browse_map .geolink").show();

 
 

-    $.ajax("/api/" + OSM.API_VERSION + "/" + this.type + "/" + this.feature.osm_id + "/history", {
-      complete: OpenLayers.Function.bind(displayHistory, this)
+    $("a[data-editor=remote]").click(function () {
+      return remoteEditHandler(bbox);

     });
 
     });
 

-    return false;
-  }
-
-  function displayHistory(request) {
-    if (browseActiveFeature.osm_id != this.feature.osm_id || $("#browse_content").firstChild == browseObjectList)  {
-        return false;
-    }
-
-    this.link.parentNode.removeChild(this.link);
-
-    var doc = request.responseXML;
-
-    var table = document.createElement("table");
-    table.width = "100%";
-    table.className = "browse_heading";
-    $("#browse_content").append(table);
-
-    var tr = document.createElement("tr");
-    table.appendChild(tr);
-
-    var heading = document.createElement("td");
-    heading.appendChild(document.createTextNode(I18n.t("browse.start_rjs.history_for_feature", { feature: featureNameHistory(this.feature) })));
-    tr.appendChild(heading);
+    var centre = bbox.getCenter();
+    updatelinks(centre.lon, centre.lat, 16, null, params.minlon, params.minlat, params.maxlon, params.maxlat);
+  } else if (params.type == "note") {
+    map.setView([params.lat, params.lon], 16);

 
 

-    var td = document.createElement("td");
-    td.align = "right";
-    tr.appendChild(td);
+    L.marker([params.lat, params.lon], { icon: getUserIcon() }).addTo(map);

 
 

-    var link = document.createElement("a");
-    link.href = "/browse/" + this.type + "/" + this.feature.osm_id + "/history";
-    link.appendChild(document.createTextNode(I18n.t('browse.start_rjs.details')));
-    td.appendChild(link);
+    var bbox = map.getBounds();

 
 

-    var div = document.createElement("div");
-    div.className = "browse_details";
+    $("#loading").hide();
+    $("#browse_map .geolink").show();

 
 

-    var nodes = doc.getElementsByTagName(this.type);
-    var history = document.createElement("ul");
-    for (var i = nodes.length - 1; i >= 0; i--) {
-      var user = nodes[i].getAttribute("user") || I18n.t('browse.start_rjs.private_user');
-      var timestamp = nodes[i].getAttribute("timestamp");
-      var item = document.createElement("li");
-      item.appendChild(document.createTextNode(I18n.t("browse.start_rjs.edited_by_user_at_timestamp", { user: user, timestamp: timestamp })));
-      history.appendChild(item);
-    }
-    div.appendChild(history);
+    $("a[data-editor=remote]").click(function () {
+      return remoteEditHandler(bbox);
+    });

 
 

-    $("#browse_content").append(div);
-  }
+    updatelinks(params.lon, params.lat, 16, null, 
+                bbox.getWestLng(), bbox.getSouthLat(),
+                bbox.getEastLng(), bbox.getNorthLat());
+  } else {
+    $("#object_larger_map").hide();
+    $("#object_edit").hide();

 
 

-  function featureType(feature) {
-    if (feature.geometry.CLASS_NAME == "OpenLayers.Geometry.Point") {
-      return "node";
-    } else {
-      return "way";
-    }
-  }
+    var object = {type: params.type, id: params.id};

 
 

-  function featureTypeName(feature) {
-    if (featureType(feature) == "node") {
-      return I18n.t('browse.start_rjs.object_list.type.node');
-    } else if (featureType(feature) == "way") {
-      return I18n.t('browse.start_rjs.object_list.type.way');
+    if (!params.visible) {
+      object.version = params.version - 1;

     }
     }

-  }

 
 

-  function featureName(feature) {
-    var lang = $('html').attr('lang');
-    if (feature.attributes['name:' + lang]) {
-      return feature.attributes['name:' + lang];
-    } else if (feature.attributes.name) {
-      return feature.attributes.name;
-    } else {
-      return feature.osm_id;
-    }
-  }
+    addObjectToMap(object, true, function(extent) {
+      $("#loading").hide();
+      $("#browse_map .geolink").show();

 
 

-  function featureNameSelect(feature) {
-    var lang = $('html').attr('lang');
-    if (feature.attributes['name:' + lang]) {
-      return feature.attributes['name:' + lang];
-    } else if (feature.attributes.name) {
-      return feature.attributes.name;
-    } else if (featureType(feature) == "node") {
-      return I18n.t("browse.start_rjs.object_list.selected.type.node", { id: feature.osm_id });
-    } else if (featureType(feature) == "way") {
-      return I18n.t("browse.start_rjs.object_list.selected.type.way", { id: feature.osm_id });
-    }
-  }
+      if (extent) {
+        $("a.bbox[data-editor=remote]").click(function () {
+          return remoteEditHandler(extent);
+        });

 
 

-  function featureNameHistory(feature) {
-    var lang = $('html').attr('lang');
-    if (feature.attributes['name:' + lang]) {
-      return feature.attributes['name:' + lang];
-    } else if (feature.attributes.name) {
-      return feature.attributes.name;
-    } else if (featureType(feature) == "node") {
-      return I18n.t("browse.start_rjs.object_list.history.type.node", { id: feature.osm_id });
-    } else if (featureType(feature) == "way") {
-      return I18n.t("browse.start_rjs.object_list.history.type.way", { id: feature.osm_id });
-    }
-  }
+        $("a.object[data-editor=remote]").click(function () {
+          return remoteEditHandler(extent, params.type + params.id);
+        });

 
 

-  function setStatus(status) {
-    $("#browse_status").html(status);
-    $("#browse_status").show();
+        $("#object_larger_map").show();
+        $("#object_edit").show();
+
+        var centre = extent.getCenter();
+        updatelinks(centre.lng,
+                    centre.lat,
+                    16, null,
+                    extent.getWestLng(),
+                    extent.getSouthLat(),
+                    extent.getEastLng(),
+                    extent.getNorthLat(),
+                    object);
+      } else {
+        $("#small_map").hide();
+      }
+    });

   }
 
   }
 

-  function clearStatus() {
-    $("#browse_status").html("");
-    $("#browse_status").hide();
-  }
-}
+  createMenu("area_edit", "area_edit_menu", "right");
+  createMenu("object_edit", "object_edit_menu", "right");
+});