Enable/disable some context-menu options conditional on zoom

[rails.git] / app / assets / javascripts / leaflet.layers.js

diff --git a/app/assets/javascripts/leaflet.layers.js b/app/assets/javascripts/leaflet.layers.js
index 6c83f0c2fb5b38e871011d12fbd494da615d42dc..d2928068d4d6a1ec1a754e0a081f75b90f4cf356 100644 (file)
--- a/app/assets/javascripts/leaflet.layers.js
+++ b/app/assets/javascripts/leaflet.layers.js
@@ -1,47 +1,192 @@
-//= require templates/map/layers
-
-L.OSM.Layers = L.Control.extend({
-  onAdd: function (map) {
-    this._initLayout(map);
-    return this._container;
-  },
-
-  _initLayout: function (map) {
-    var className = 'leaflet-control-map-ui',
-      container = this._container = L.DomUtil.create('div', className);
-
-    var link = this._layersLink = L.DomUtil.create('a', 'leaflet-map-ui-layers', container);
-    link.href = '#';
-    link.title = 'Layers';
-
-    this._uiPane = L.DomUtil.create('div', 'leaflet-map-ui', map._container);
-
-    L.DomEvent
-      .on(this._uiPane, 'click', L.DomEvent.stopPropagation)
-      .on(this._uiPane, 'click', L.DomEvent.preventDefault)
-      .on(this._uiPane, 'dblclick', L.DomEvent.preventDefault);
-
-    $(link).on('click', $.proxy(this.toggleLayers, this));
-  },
-
-  toggleLayers: function (e) {
-    e.stopPropagation();
-    e.preventDefault();
-
-    var controlContainer = $('.leaflet-control-container .leaflet-top.leaflet-right');
-
-    if ($(this._uiPane).is(':visible')) {
-      $(this._uiPane).hide();
-      controlContainer.css({paddingRight: '0'});
-    } else {
-      $(this._uiPane)
-        .show()
-        .html(JST["templates/map/layers"]({layers: this.options.layers}));
-      controlContainer.css({paddingRight: '200px'});
+L.OSM.layers = function(options) {
+  var control = L.control(options);
+
+  control.onAdd = function (map) {
+    var layers = options.layers;
+
+    var $container = $('<div>')
+      .attr('class', 'control-layers');
+
+    var button = $('<a>')
+      .attr('class', 'control-button')
+      .attr('href', '#')
+      .attr('title', I18n.t('javascripts.map.layers.title'))
+      .html('<span class="icon layers"></span>')
+      .on('click', toggle)
+      .appendTo($container);
+
+    var $ui = $('<div>')
+      .attr('class', 'layers-ui');
+
+    $('<div>')
+      .attr('class', 'sidebar_heading')
+      .appendTo($ui)
+      .append(
+        $('<span>')
+          .text(I18n.t('javascripts.close'))
+          .attr('class', 'icon close')
+          .bind('click', toggle))
+      .append(
+        $('<h4>')
+          .text(I18n.t('javascripts.map.layers.header')));
+
+    var baseSection = $('<div>')
+      .attr('class', 'section base-layers')
+      .appendTo($ui);
+
+    var baseLayers = $('<ul>')
+      .appendTo(baseSection);
+
+    layers.forEach(function(layer) {
+      var item = $('<li>')
+        .appendTo(baseLayers);
+
+      if (map.hasLayer(layer)) {
+        item.addClass('active');
+      }
+
+      var div = $('<div>')
+        .appendTo(item);
+
+      map.whenReady(function() {
+        var miniMap = L.map(div[0], {attributionControl: false, zoomControl: false})
+          .addLayer(new layer.constructor());
+
+        miniMap.dragging.disable();
+        miniMap.touchZoom.disable();
+        miniMap.doubleClickZoom.disable();
+        miniMap.scrollWheelZoom.disable();
+
+        $ui
+          .on('show', shown)
+          .on('hide', hide);
+
+        function shown() {
+          miniMap.invalidateSize();
+          setView({animate: false});
+          map.on('moveend', moved);
+        }
+
+        function hide() {
+          map.off('moveend', moved);
+        }
+
+        function moved() {
+          setView();
+        }
+
+        function setView(options) {
+          miniMap.setView(map.getCenter(), Math.max(map.getZoom() - 2, 0), options);
+        }
+      });
+
+      var label = $('<label>')
+        .appendTo(item);
+
+      var input = $('<input>')
+         .attr('type', 'radio')
+         .prop('checked', map.hasLayer(layer))
+         .appendTo(label);
+
+      label.append(layer.options.name);
+
+      item.on('click', function() {
+        layers.forEach(function(other) {
+          if (other === layer) {
+            map.addLayer(other);
+          } else {
+            map.removeLayer(other);
+          }
+        });
+        map.fire('baselayerchange', {layer: layer});
+      });
+
+      map.on('layeradd layerremove', function() {
+        item.toggleClass('active', map.hasLayer(layer));
+        input.prop('checked', map.hasLayer(layer));
+      });
+    });
+
+    if (OSM.STATUS !== 'api_offline' && OSM.STATUS !== 'database_offline') {
+      var overlaySection = $('<div>')
+        .attr('class', 'section overlay-layers')
+        .appendTo($ui);
+
+      $('<p>')
+        .text(I18n.t('javascripts.map.layers.overlays'))
+        .attr("class", "deemphasize")
+        .appendTo(overlaySection);
+
+      var overlays = $('<ul>')
+        .appendTo(overlaySection);
+
+      var addOverlay = function (layer, name, maxArea) {
+        var item = $('<li>')
+          .tooltip({
+            placement: 'top'
+          })
+          .appendTo(overlays);
+
+        var label = $('<label>')
+          .appendTo(item);
+
+        var checked = map.hasLayer(layer);
+
+        var input = $('<input>')
+          .attr('type', 'checkbox')
+          .prop('checked', checked)
+          .appendTo(label);
+
+        label.append(I18n.t('javascripts.map.layers.' + name));
+
+        input.on('change', function() {
+          checked = input.is(':checked');
+          if (checked) {
+            map.addLayer(layer);
+          } else {
+            map.removeLayer(layer);
+          }
+          map.fire('overlaylayerchange', {layer: layer});
+        });
+
+        map.on('layeradd layerremove', function() {
+          input.prop('checked', map.hasLayer(layer));
+        });
+
+        map.on('zoomend', function() {
+          var disabled = map.getBounds().getSize() >= maxArea;
+          $(input).prop('disabled', disabled);
+
+          if (disabled && $(input).is(':checked')) {
+            $(input).prop('checked', false)
+              .trigger('change');
+            checked = true;
+          } else if (!disabled && !$(input).is(':checked') && checked) {
+            $(input).prop('checked', true)
+              .trigger('change');
+          }
+
+          $(item).attr('class', disabled ? 'disabled' : '');
+          item.attr('data-original-title', disabled ?
+            I18n.t('javascripts.site.map_' + name + '_zoom_in_tooltip') : '');
+        });
+      };
+
+      addOverlay(map.noteLayer, 'notes', OSM.MAX_NOTE_REQUEST_AREA);
+      addOverlay(map.dataLayer, 'data', OSM.MAX_REQUEST_AREA);

     }
     }

-  }
-});

 
 

-L.OSM.layers = function(options) {
-  return new L.OSM.Layers(options);
+    options.sidebar.addPane($ui);
+
+    function toggle(e) {
+      e.stopPropagation();
+      e.preventDefault();
+      options.sidebar.togglePane($ui, button);
+      $('.leaflet-control .control-button').tooltip('hide');
+    }
+
+    return $container[0];
+  };
+
+  return control;

 };
 };