rename scene.proto.handleDragmode --> scene.proto.updateFx

- to be consistent with scene2d
- note that updateFx is called w/o passing through scene.proto.plot
  for Plotly.relayout when 'layout.dragmode' and/or
  'layout.hovermode' are updated

Author: etpinard

src/plot_api/plot_api.js

@@ -2275,7 +2275,7 @@ Plotly.relayout = function relayout(gd, astr, val) {
              * hovermode and dragmode don't need any redrawing, since they just
              * affect reaction to user input. everything else, assume full replot.
              * height, width, autosize get dealt with below. Except for the case of
-             * of subplots - scenes - which require scene.handleDragmode to be called.
+             * of subplots - scenes - which require scene.updateFx to be called.
              */
             else if(['hovermode', 'dragmode'].indexOf(ai) !== -1) domodebar = true;
             else if(['hovermode','dragmode','height',
@@ -2343,7 +2343,7 @@ Plotly.relayout = function relayout(gd, astr, val) {
             subplotIds = Plots.getSubplotIds(fullLayout, 'gl3d');
             for(i = 0; i < subplotIds.length; i++) {
                 scene = fullLayout[subplotIds[i]]._scene;
-                scene.handleDragmode(fullLayout.dragmode);
+                scene.updateFx(fullLayout.dragmode, fullLayout.hovermode);
             }
 
             subplotIds = Plots.getSubplotIds(fullLayout, 'gl2d');

src/plots/gl3d/scene.js

@@ -300,7 +300,7 @@ proto.plot = function(sceneData, fullLayout, layout) {
     this.spikeOptions.merge(fullSceneLayout);
 
     // Update camera mode
-    this.handleDragmode(fullLayout.dragmode);
+    this.updateFx(fullSceneLayout.dragmode, fullSceneLayout.hovermode);
 
     //Update scene
     this.glplot.update({});
@@ -586,16 +586,16 @@ proto.saveCamera = function saveCamera(layout) {
     return hasChanged;
 };
 
-proto.handleDragmode = function(dragmode) {
-
+proto.updateFx = function(dragmode, hovermode) {
     var camera = this.camera;
-    if (camera) {
+
+    if(camera) {
         // rotate and orbital are synonymous
-        if (dragmode === 'orbit') {
+        if(dragmode === 'orbit') {
             camera.mode = 'orbit';
             camera.keyBindingMode = 'rotate';
 
-        } else if (dragmode === 'turntable') {
+        } else if(dragmode === 'turntable') {
             camera.up = [0, 0, 1];
             camera.mode = 'turntable';
             camera.keyBindingMode = 'rotate';
@@ -606,6 +606,9 @@ proto.handleDragmode = function(dragmode) {
             camera.keyBindingMode = dragmode;
         }
     }
+
+    // to put dragmode and hovermode on the same grounds from relayout
+    this.fullSceneLayout.hovermode = hovermode;
 };
 
 proto.toImage = function(format) {