Initial commit

lib/assets/javascripts/builder/deep-insights-integration/legends-integration.js

@@ -0,0 +1,64 @@
+var checkAndBuildOpts = require('builder/helpers/required-opts');
+
+var REQUIRED_OPTS = [
+  'diDashboardHelpers',
+  'legendDefinitionsCollection'
+];
+
+/**
+ *  Only manage **LEGENDS** actions between Deep-Insights (CARTO.js) and Builder
+ *
+ */
+
+module.exports = {
+
+  track: function (options) {
+    checkAndBuildOpts(options, REQUIRED_OPTS, this);
+
+    this._legendDefinitionsCollection.on('add', this._onLegendDefinitionAdded, this);
+    this._legendDefinitionsCollection.on('change', this._onLegendDefinitionChanged, this);
+    this._legendDefinitionsCollection.on('remove', this._onLegendDefinitionRemoved, this);
+
+    return this;
+  },
+
+  _onLegendDefinitionAdded: function (m) {
+    var layerDefModel = m.layerDefinitionModel;
+    var layer = this._diDashboardHelpers.getLayer(layerDefModel.id);
+    var type = m.get('type');
+    var legend;
+    if (layer && layer.legends) {
+      legend = layer.legends[type];
+      if (legend) {
+        legend.reset();
+        legend.set(m.getAttributes());
+        legend.show();
+      }
+    }
+  },
+
+  _onLegendDefinitionRemoved: function (m) {
+    var layerDefModel = m.layerDefinitionModel;
+    var layer = this._diDashboardHelpers.getLayer(layerDefModel.id);
+    var type = m.get('type');
+    var legend;
+    if (layer && layer.legends) {
+      legend = layer.legends[type];
+      legend && legend.hide();
+    }
+  },
+
+  _onLegendDefinitionChanged: function (m) {
+    var layerDefModel = m.layerDefinitionModel;
+    var layer = this._diDashboardHelpers.getLayer(layerDefModel.id);
+    var type = m.get('type');
+    var legend;
+    if (layer && layer.legends) {
+      legend = layer.legends[type];
+      if (legend) {
+        legend.reset();
+        legend.set(m.getAttributes());
+      }
+    }
+  }
+};