Clickable legends

src/kibana/components/filter_bar/filter_bar_click_handler.js

@@ -6,16 +6,42 @@ define(function (require) {
   return function (Notifier) {
     return function ($state) {
       return function (event) {
-        // Hierarchical and tabular data set their aggConfigResult parameter
-        // differently because of how the point is rewritten between the two. So
-        // we need to check if the point.orig is set, if not use try the point.aggConfigResult
-        var aggConfigResult = event.point.orig && event.point.orig.aggConfigResult || event.point.aggConfigResult;
         var notify = new Notifier({
           location: 'Filter bar'
         });
+        var aggConfigResult;
+
+        // Hierarchical and tabular data set their aggConfigResult parameter
+        // differently because of how the point is rewritten between the two. So
+        // we need to check if the point.orig is set, if not use try the point.aggConfigResult
+        if (event.point.orig) {
+          aggConfigResult = event.point.orig.aggConfigResult;
+        } else if (event.point.values) {
+          aggConfigResult = findAggConfig(event.point.values);
+        } else {
+          aggConfigResult = event.point.aggConfigResult;
+        }
+
+        function findAggConfig(values) {
+          if (_.isArray(values)) { // point series chart
+            var index = _.findIndex(values, 'aggConfigResult');
+            return values[index].aggConfigResult;
+          }
+          return values.aggConfigResult; // pie chart
+        }
+
+        function findLabel(obj) {
+          // TODO: find out if there is always a fieldFormatter
+          var formatter = obj.aggConfig.fieldFormatter();
+          return formatter(obj.key) === event.label;
+        }
 
         if (aggConfigResult) {
+          var isLegendLabel = !!event.point.values;
           var results = _.filter(aggConfigResult.getPath(), { type: 'bucket' });
+
+          if (isLegendLabel) results = _.filter(results, findLabel); // filter results array by legend label
+
           var filters = _(results)
           .map(function (result) {
             try {

src/kibana/components/vislib/components/labels/data_array.js

@@ -1,22 +1,17 @@
 define(function (require) {
   return function GetArrayUtilService(Private) {
     var _ = require('lodash');
-
     var flattenSeries = Private(require('components/vislib/components/labels/flatten_series'));
 
     /*
      * Accepts a Kibana data object and returns an array of values objects.
     */
-
     return function (obj) {
       if (!_.isObject(obj) || !obj.rows && !obj.columns && !obj.series) {
         throw new TypeError('GetArrayUtilService expects an object with a series, rows, or columns key');
       }
 
-      if (!obj.series) {
-        return flattenSeries(obj);
-      }
-
+      if (!obj.series) return flattenSeries(obj);
       return obj.series;
     };
   };

src/kibana/components/vislib/components/labels/flatten_series.js

@@ -6,7 +6,6 @@ define(function (require) {
      * Accepts a Kibana data object with a rows or columns key
      * and returns an array of flattened series values.
      */
-
     return function (obj) {
       if (!_.isObject(obj) || !obj.rows && !obj.columns) {
         throw new TypeError('GetSeriesUtilService expects an object with either a rows or columns key');

src/kibana/components/vislib/components/labels/labels.js

@@ -4,6 +4,7 @@ define(function (require) {
 
     var createArr = Private(require('components/vislib/components/labels/data_array'));
     var getArrOfUniqLabels = Private(require('components/vislib/components/labels/uniq_labels'));
+    var getPieLabels = Private(require('components/vislib/components/labels/pie/pie_labels'));
 
     /*
      * Accepts a Kibana data object and returns an array of unique labels (strings).
@@ -12,12 +13,9 @@ define(function (require) {
      *
      * Currently, this service is only used for vertical bar charts and line charts.
      */
-
-    return function (obj) {
-      if (!_.isObject(obj)) {
-        throw new TypeError('LabelUtil expects an object');
-      }
-
+    return function (obj, chartType) {
+      if (!_.isObject(obj)) { throw new TypeError('LabelUtil expects an object'); }
+      if (chartType === 'pie') { return getPieLabels(obj); }
       return getArrOfUniqLabels(createArr(obj));
     };
   };

src/kibana/components/vislib/components/labels/pie/get_pie_names.js

@@ -0,0 +1,21 @@
+define(function (require) {
+  var _ = require('lodash');
+
+  return function GetPieNames(Private) {
+    var returnNames = Private(require('components/vislib/components/labels/pie/return_pie_names'));
+
+    return function (data, columns) {
+      var slices = data.slices;
+
+      if (slices.children) {
+        return _(returnNames(slices.children, 0, columns))
+        .sortBy(function (obj) {
+          return obj.index;
+        })
+        .pluck('key')
+        .unique()
+        .value();
+      }
+    };
+  };
+});

src/kibana/components/vislib/components/labels/pie/pie_labels.js

@@ -0,0 +1,26 @@
+define(function (require) {
+  var _ = require('lodash');
+
+  return function PieLabels(Private) {
+    var removeZeroSlices = Private(require('components/vislib/components/labels/pie/remove_zero_slices'));
+    var getNames = Private(require('components/vislib/components/labels/pie/get_pie_names'));
+
+    return function (obj) {
+      if (!_.isObject(obj)) { throw new TypeError('PieLabel expects an object'); }
+
+      var data = obj.columns || obj.rows || [obj];
+      var names = [];
+
+      data.forEach(function (obj) {
+        var columns = obj.raw ? obj.raw.columns : undefined;
+        obj.slices = removeZeroSlices(obj.slices);
+
+        getNames(obj, columns).forEach(function (name) {
+          names.push(name);
+        });
+      });
+
+      return _.uniq(names);
+    };
+  };
+});

src/kibana/components/vislib/components/labels/pie/remove_zero_slices.js

@@ -0,0 +1,17 @@
+define(function (require) {
+  var _ = require('lodash');
+
+  return function RemoveZeroSlices() {
+    return function removeZeroSlices(slices) {
+      if (!slices.children) return slices;
+
+      slices = _.clone(slices);
+      slices.children = slices.children.reduce(function (children, child) {
+        if (child.size !== 0) { children.push(removeZeroSlices(child)); }
+        return children;
+      }, []);
+
+      return slices;
+    };
+  };
+});

src/kibana/components/vislib/components/labels/pie/return_pie_names.js

@@ -0,0 +1,19 @@
+define(function () {
+  return function ReturnPieNames() {
+    return function returnNames(array, index, columns) {
+      var names = [];
+
+      array.forEach(function (obj) {
+        names.push({ key: obj.name, index: index });
+
+        if (obj.children) {
+          returnNames(obj.children, (index + 1), columns).forEach(function (namedObj) {
+            names.push(namedObj);
+          });
+        }
+      });
+
+      return names;
+    };
+  };
+});

src/kibana/components/vislib/components/labels/uniq_labels.js

@@ -6,7 +6,6 @@ define(function (require) {
      * Accepts an array of data objects and a formatter function.
      * Returns a unique list of formatted labels (strings).
      */
-
     return function (arr) {
       if (!_.isArray(arr)) {
         throw new TypeError('UniqLabelUtil expects an array of objects');

src/kibana/components/vislib/lib/data.js

@@ -37,21 +37,8 @@ define(function (require) {
 
       this.data = data;
       this.type = this.getDataType();
-
-      this.labels;
-
-      if (this.type === 'series') {
-        if (getLabels(data).length === 1 && getLabels(data)[0] === '') {
-          this.labels = [(this.get('yAxisLabel'))];
-        } else {
-          this.labels = getLabels(data);
-        }
-      } else if (this.type === 'slices') {
-        this.labels = this.pieNames();
-      }
-
+      this.labels = this._getLabels(this.data);
       this.color = this.labels ? color(this.labels) : undefined;
-
       this._normalizeOrdered();
 
       this._attr = _.defaults(attr || {}, {
@@ -73,6 +60,15 @@ define(function (require) {
       }
     }
 
+    Data.prototype._getLabels = function (data) {
+      if (this.type === 'series') {
+        var noLabel = getLabels(data).length === 1 && getLabels(data)[0] === '';
+        if (noLabel) return [(this.get('yAxisLabel'))];
+        return getLabels(data);
+      }
+      return this.pieNames();
+    };
+
     /**
      * Returns true for positive numbers
      */
@@ -485,7 +481,7 @@ define(function (require) {
       var self = this;
 
       _.forEach(array, function (obj) {
-        names.push({ key: obj.name, index: index });
+        names.push({ label: obj.name, values: obj, index: index });
 
         if (obj.children) {
           var plusIndex = index + 1;
@@ -519,8 +515,9 @@ define(function (require) {
         .sortBy(function (obj) {
           return obj.index;
         })
-        .pluck('key')
-        .unique()
+        .unique(function (d) {
+          return d.label;
+        })
         .value();
       }
     };
@@ -553,9 +550,8 @@ define(function (require) {
      * @method pieNames
      * @returns {Array} Array of unique names (strings)
      */
-    Data.prototype.pieNames = function () {
+    Data.prototype.pieNames = function (data) {
       var self = this;
-      var data = this.getVisData();
       var names = [];
 
       _.forEach(data, function (obj) {
@@ -567,7 +563,7 @@ define(function (require) {
         });
       });
 
-      return _.uniq(names);
+      return _.uniq(names, 'label');
     };
 
     /**
@@ -619,7 +615,9 @@ define(function (require) {
      * @returns {Function} Performs lookup on string and returns hex color
      */
     Data.prototype.getPieColorFunc = function () {
-      return color(this.pieNames());
+      return color(this.pieNames(this.getVisData()).map(function (d) {
+        return d.label;
+      }));
     };
 
     /**

src/kibana/components/vislib/lib/dispatch.js

@@ -35,26 +35,27 @@ define(function (require) {
      */
     Dispatch.prototype.eventResponse = function (d, i) {
       var datum = d._input || d;
-      var data = d3.event.target.nearestViewportElement.__data__;
+      var data = d3.event.target.nearestViewportElement ?
+        d3.event.target.nearestViewportElement.__data__ : d3.event.target.__data__;
       var label = d.label ? d.label : d.name;
-      var isSeries = !!(data.series);
-      var isSlices = !!(data.slices);
+      var isSeries = !!(data && data.series);
+      var isSlices = !!(data && data.slices);
       var series = isSeries ? data.series : undefined;
       var slices = isSlices ? data.slices : undefined;
       var handler = this.handler;
-      var color = handler.data.color;
-      var isPercentage = (handler._attr.mode === 'percentage');
+      var color = _.get(handler, 'data.color');
+      var isPercentage = (handler && handler._attr.mode === 'percentage');
 
       var eventData = {
         value: d.y,
         point: datum,
         datum: datum,
         label: label,
-        color: color(label),
+        color: color ? color(label) : undefined,
         pointIndex: i,
         series: series,
         slices: slices,
-        config: handler._attr,
+        config: handler && handler._attr,
         data: data,
         e: d3.event,
         handler: handler
@@ -231,7 +232,7 @@ define(function (require) {
         .select('.legend-ul')
         .selectAll('li.color')
         .filter(function (d, i) {
-          return this.getAttribute('data-label') !== label;
+          return String(d.label) !== label;
         })
         .classed('blur_shape', true);
     };

src/kibana/components/vislib/lib/handler/handler.js

@@ -4,6 +4,7 @@ define(function (require) {
     var errors = require('errors');
 
     var Data = Private(require('components/vislib/lib/data'));
+    var Legend = Private(require('components/vislib/lib/legend'));
     var Layout = Private(require('components/vislib/lib/layout/layout'));
 
     /**
@@ -93,6 +94,12 @@ define(function (require) {
 
       this._validateData();
       this.renderArray.forEach(function (property) {
+        if (property instanceof Legend) {
+          self.vis.activeEvents().forEach(function (event) {
+            self.enable(event, property);
+          });
+        }
+
         if (typeof property.render === 'function') {
           property.render();
         }

src/kibana/components/vislib/lib/handler/types/pie.js

@@ -10,10 +10,8 @@ define(function (require) {
      */
 
     return function (vis) {
-      var data = new Data(vis.data, vis._attr);
-
       return new Handler(vis, {
-        legend: new Legend(vis, vis.el, data.pieNames(), data.getPieColorFunc(), vis._attr),
+        legend: new Legend(vis),
         chartTitle: new ChartTitle(vis.el)
       });
     };

src/kibana/components/vislib/lib/handler/types/point_series.js

@@ -29,7 +29,7 @@ define(function (require) {
 
         return new Handler(vis, {
           data: data,
-          legend: new Legend(vis, vis.el, data.labels, data.color, vis._attr),
+          legend: new Legend(vis, vis.data),
           axisTitle: new AxisTitle(vis.el, data.get('xAxisLabel'), data.get('yAxisLabel')),
           chartTitle: new ChartTitle(vis.el),
           xAxis: new XAxis({