Remove data.ondragstart and data.ondragend callbacks - #215 #798

c3.js

@@ -978,8 +978,6 @@
             data_onmouseout: function () {},
             data_onselected: function () {},
             data_onunselected: function () {},
-            data_ondragstart: function () {},
-            data_ondragend: function () {},
             data_url: undefined,
             data_json: undefined,
             data_rows: undefined,
@@ -5033,7 +5031,6 @@
             .attr('class', CLASS.dragarea)
             .style('opacity', 0.1);
         $$.dragging = true;
-        $$.config.data_ondragstart.call($$.api);
     };
 
     c3_chart_internal_fn.dragend = function () {
@@ -5047,10 +5044,8 @@
         $$.main.selectAll('.' + CLASS.shape)
             .classed(CLASS.INCLUDED, false);
         $$.dragging = false;
-        $$.config.data_ondragend.call($$.api);
     };
 
-
     c3_chart_internal_fn.selectPoint = function (target, d, i) {
         var $$ = this, config = $$.config,
             cx = (config.axis_rotated ? $$.circleY : $$.circleX).bind($$),

src/config.js

@@ -50,8 +50,6 @@ c3_chart_internal_fn.getDefaultConfig = function () {
         data_onmouseout: function () {},
         data_onselected: function () {},
         data_onunselected: function () {},
-        data_ondragstart: function () {},
-        data_ondragend: function () {},
         data_url: undefined,
         data_json: undefined,
         data_rows: undefined,

src/drag.js

@@ -65,7 +65,6 @@ c3_chart_internal_fn.dragstart = function (mouse) {
         .attr('class', CLASS.dragarea)
         .style('opacity', 0.1);
     $$.dragging = true;
-    $$.config.data_ondragstart.call($$.api);
 };
 
 c3_chart_internal_fn.dragend = function () {
@@ -79,6 +78,4 @@ c3_chart_internal_fn.dragend = function () {
     $$.main.selectAll('.' + CLASS.shape)
         .classed(CLASS.INCLUDED, false);
     $$.dragging = false;
-    $$.config.data_ondragend.call($$.api);
 };
-