Merge pull request #11 from danstowell/jsrouting-pulldownchange

[rails.git] / app / assets / javascripts / index / notes.js.erb

diff --git a/app/assets/javascripts/index/notes.js.erb b/app/assets/javascripts/index/notes.js.erb
index 674aa92040ab6eeb790acd26a7c896e736cc9504..841ae1f7bdf652096e80399782474513deb1d880 100644 (file)
--- a/app/assets/javascripts/index/notes.js.erb
+++ b/app/assets/javascripts/index/notes.js.erb
@@ -1,214 +1,94 @@
-$(document).ready(function () {
-  var params = OSM.mapParams();
-  var newNotes;
-
-  function saveNewNotes(o) {
-    var layer = o.object;
-    newNotes = layer.getFeaturesByAttribute("status", "new")
-    layer.removeFeatures(newNotes, { silent: true });
-  }
-
-  function restoreNewNotes(o) {
-    var layer = o.object;
-    layer.addFeatures(newNotes);
-    newNotes = undefined;
-  }
-
-  function describeNote(n) {
-    var description = "<h2>Note " + n.id + "</h2>";
-
-    n.comments.forEach(function (c) {
-      description += "<p><small class='deemphasize'>" + c.action + " by ";
-      description += c.user + " at " + c.date + "</small><br/>" + c.text + "</p>";
-    });
-
-    return description;
-  }
+function initializeNotes(map) {
+  var noteLayer = map.noteLayer,
+      notes = {};
+
+  var noteIcons = {
+    "new": L.icon({
+      iconUrl: "<%= image_path 'new_note_marker.png' %>",
+      iconSize: [25, 40],
+      iconAnchor: [12, 40]
+    }),
+    "open": L.icon({
+      iconUrl: "<%= image_path 'open_note_marker.png' %>",
+      iconSize: [25, 40],
+      iconAnchor: [12, 40]
+    }),
+    "closed": L.icon({
+      iconUrl: "<%= image_path 'closed_note_marker.png' %>",
+      iconSize: [25, 40],
+      iconAnchor: [12, 40]
+    })
+  };
+
+  map.on("layeradd", function (e) {
+    if (e.layer == noteLayer) {
+      loadNotes();
+      map.on("moveend", loadNotes);
+    }
+  }).on("layerremove", function (e) {
+    if (e.layer == noteLayer) {
+      map.off("moveend", loadNotes);
+      noteLayer.clearLayers();
+      notes = {};
+    }
+  });

 
 

-  function noteSelected(o) {
-    var feature = o.feature;
-    var location = feature.geometry.getBounds().getCenterLonLat();
-    var content;
-    var close;
+  noteLayer.on('click', function(e) {
+    OSM.router.route('/note/' + e.layer.id);
+  });

 
 

-    if (feature.attributes.status === "new") {
-      var form = $("#new-note").clone();
-      form.removeClass("hidden");
-      content = form.html();
-      close = false;
+  function updateMarker(marker, feature) {
+    if (marker) {
+      marker.setIcon(noteIcons[feature.properties.status]);

     } else {
     } else {

-      content = describeNote(feature.attributes);
-      close = true;
-    };
-
-    feature.popup = new OpenLayers.Popup.FramedCloud(
-      feature.attributes.id, location, null, content, null, close,
-      function (e) { map.noteSelector.unselect(feature) }
-    );
-
-    map.addPopup(feature.popup);
-    // feature.popup.show();
-
-    $(feature.popup.contentDiv).find("textarea").autoGrow();
-
-    $(feature.popup.contentDiv).find("input#note-submit").click(function (e) {
-      var location = unproj(feature.geometry.getBounds().getCenterLonLat());
-      var form = $(e.target).parents("form").first();
-
-      $.ajax(form.prop("action"), {
-        type: form.prop("method"),
-        data: {
-          lon: location.lon,
-          lat: location.lat,
-          text: form.find("textarea#comment").val()
-        },
-        success: function (data) {
-          map.noteSelector.unselect(feature);
-
-          feature.attributes.status = "open";
-          feature.attributes.id = data;
-
-          map.noteLayer.drawFeature(feature);
-
-          map.noteMover.deactivate();
-        }
+      marker = L.marker(feature.geometry.coordinates.reverse(), {
+        icon: noteIcons[feature.properties.status],
+        opacity: 0.8,
+        clickable: true

       });
       });

-
-      e.preventDefault();
-    });
-
-    $(feature.popup.contentDiv).find("input#note-cancel").click(function (e) {
-      feature.attributes.status = "cancelled";
-
-      map.noteSelector.unselect(feature);
-      map.noteLayer.removeFeatures(feature);
-
-      feature.destroy();
-
-      map.noteMover.deactivate();
-
-      e.preventDefault();
-    });
-
-    feature.popup.updateSize();
-  }
-
-  function noteUnselected(o) {
-    var feature = o.feature;
-
-    map.removePopup(feature.popup);
+      marker.id = feature.properties.id;
+      marker.addTo(noteLayer);
+    }
+    return marker;

   }
 
   }
 

-  function addNote() {
-    var lonlat = map.getCenter();
-    var layer = map.noteLayer;
-    var geometry = new OpenLayers.Geometry.Point(lonlat.lon, lonlat.lat);
-    var feature = new OpenLayers.Feature.Vector(geometry, {
-      status: "new"
-    });
+  noteLayer.getLayerId = function(marker) {
+    return marker.id;
+  };

 
 

-    layer.addFeatures(feature);
-    map.noteSelector.unselectAll();
-    map.noteSelector.select(feature);
-    map.noteMover.activate();
-    map.noteLayer.setVisibility(true);
-  }
+  var noteLoader;

 
 

-  $("#map").on("initialised", function () {
-    map.noteLayer = new OpenLayers.Layer.Vector("Notes", {
-      visibility: params.notes,
-      displayInLayerSwitcher: false,
-      projection: new OpenLayers.Projection("EPSG:4326"),
-      styleMap: new OpenLayers.StyleMap(new OpenLayers.Style({
-        graphicWidth: 22,
-        graphicHeight: 22,
-        graphicOpacity: 0.7,
-        graphicXOffset: -11,
-        graphicYOffset: -11
-      }, {
-        rules: [
-          new OpenLayers.Rule({
-            filter: new OpenLayers.Filter.Comparison({
-              type: OpenLayers.Filter.Comparison.EQUAL_TO,
-              property: "status",
-              value: "new"
-            }),
-            symbolizer: {
-              externalGraphic: "<%= image_path 'new_note_marker.png' %>"
-            }
-          }),
-          new OpenLayers.Rule({
-            filter: new OpenLayers.Filter.Comparison({
-              type: OpenLayers.Filter.Comparison.EQUAL_TO,
-              property: "status",
-              value: "open"
-            }),
-            symbolizer: {
-              externalGraphic: "<%= image_path 'open_note_marker.png' %>"
-            }
-          }),
-          new OpenLayers.Rule({
-            filter: new OpenLayers.Filter.Comparison({
-              type: OpenLayers.Filter.Comparison.EQUAL_TO,
-              property: "status",
-              value: "closed"
-            }),
-            symbolizer: {
-              externalGraphic: "<%= image_path 'closed_note_marker.png' %>"
-            }
-          })
-        ]
-      })),
-      strategies: [
-        new OpenLayers.Strategy.BBOX()
-      ],
-      protocol: new OpenLayers.Protocol.HTTP({
-        url: $("#show_notes").attr("href"),
-        format: new OpenLayers.Format.GeoJSON()
-      })
-    });
+  function loadNotes() {
+    var bounds = map.getBounds();
+    var size = bounds.getSize();

 
 

-    map.noteLayer.events.register("beforefeaturesremoved", map, saveNewNotes);
-    map.noteLayer.events.register("featuresremoved", map, restoreNewNotes);
-    map.noteLayer.events.register("featureselected", map, noteSelected);
-    map.noteLayer.events.register("featureunselected", map, noteUnselected);
+    if (size <= OSM.MAX_NOTE_REQUEST_AREA) {
+      var url = "/api/" + OSM.API_VERSION + "/notes.json?bbox=" + bounds.toBBoxString();

 
 

-    map.addLayer(map.noteLayer);
+      if (noteLoader) noteLoader.abort();

 
 

-    map.noteSelector = new OpenLayers.Control.SelectFeature(map.noteLayer, {
-      autoActivate: true
-    });
+      noteLoader = $.ajax({
+        url: url,
+        success: success
+      });
+    }

 
 

-    map.addControl(map.noteSelector);
+    function success(json) {
+      var oldNotes = notes;
+      notes = {};
+      json.features.forEach(updateMarkers);

 
 

-    map.noteMover = new OpenLayers.Control.DragFeature(map.noteLayer, {
-      onDrag: function (feature, pixel) {
-        feature.popup.lonlat = feature.geometry.getBounds().getCenterLonLat();
-        feature.popup.updatePosition();
-      },
-      featureCallbacks: {
-        over: function (feature) {
-          if (feature.attributes.status === "new") {
-            map.noteMover.overFeature.apply(map.noteMover, [feature]);
-          }
-        }
+      function updateMarkers(feature) {
+        var marker = oldNotes[feature.properties.id];
+        delete oldNotes[feature.properties.id];
+        notes[feature.properties.id] = updateMarker(marker, feature);

       }
       }

-    });
-
-    map.addControl(map.noteMover);
-
-    $("#show_notes").click(function (e) {
-      map.noteLayer.setVisibility(true);
-
-      e.preventDefault();
-    });

 
 

-    $("#createnoteanchor").click(function (e) {
-      map.noteLayer.setVisibility(true);
-
-      addNote();
+      for (var id in oldNotes) {
+        noteLayer.removeLayer(oldNotes[id]);
+      }

 
 

-      e.preventDefault();
-    });
-  });
-});
+      noteLoader = null;
+    }
+  }
+}