revise attribute def

Author: archmoj

src/components/fx/hover.js

@@ -270,7 +270,7 @@ function _hover(gd, evt, subplot, noHoverEvent, eventTarget) {
     var hovermodeHasX = (hovermode || '').charAt(0) === 'x';
     var hovermodeHasY = (hovermode || '').charAt(0) === 'y';
 
-    if(hoverthrough && hasCartesian && (hovermodeHasX || hovermodeHasY)) {
+    if(hasCartesian && (hovermodeHasX || hovermodeHasY) && hoverthrough === 'axis') {
         var subplotsLength = subplots.length;
         for(var p = 0; p < subplotsLength; p++) {
             spId = subplots[p];

src/components/fx/layout_attributes.js

@@ -79,11 +79,13 @@ module.exports = {
         ].join(' ')
     },
     hoverthrough: {
-        valType: 'boolean',
+        valType: 'enumerated',
+        values: ['axis', false],
         dflt: false,
         editType: 'none',
         description: [
-            'Determines expansion of hover effects to other subplots in case of sharing an axis.',
+            'Determines expansion of hover effects to other subplots',
+            'If *axis*, points from subplots linked to the axis of hovered subplot are included.',
             'Has an effect only when `hovermode` is set to *x*, *x unified*, *y* or *y unified*.',
         ].join(' ')
     },

src/traces/splom/hover.js

@@ -16,7 +16,7 @@ function hoverPoints(pointData, xval, yval, hovermode, opts) {
 
     var points = _hoverPoints(pointData, xpx, ypx);
 
-    if(opts.hoverthrough && (hovermodeHasX || hovermodeHasY)) {
+    if((hovermodeHasX || hovermodeHasY) && opts.hoverthrough === 'axis') {
         var _xpx = points[0]._xpx;
         var _ypx = points[0]._ypx;
 

test/jasmine/tests/hover_label_test.js

@@ -2380,12 +2380,12 @@ describe('hover info on stacked subplots', function() {
     });
 });
 
-describe('hover on subplots when hoverthrough is set to true and x hovermodes', function() {
+describe('hover on subplots when hoverthrough is set to *axis* and x hovermodes', function() {
     'use strict';
 
     var mock = {
         layout: {
-            hoverthrough: true,
+            hoverthrough: 'axis',
             hovermode: 'x',
             grid: {
                 rows: 3,
@@ -2423,7 +2423,7 @@ describe('hover on subplots when hoverthrough is set to true and x hovermodes',
 
     afterEach(destroyGraphDiv);
 
-    it('hovermode: *x* | *x unified* with hoverthrough: true', function() {
+    it('hovermode: *x* | *x unified* with hoverthrough: *axis*', function() {
         var pos = 0;
         var subplot = 'xy';
         Lib.clearThrottle();
@@ -2468,12 +2468,12 @@ describe('hover on subplots when hoverthrough is set to true and x hovermodes',
     });
 });
 
-describe('hover on subplots when hoverthrough is set to true and y hovermodes', function() {
+describe('hover on subplots when hoverthrough is set to *axis* and y hovermodes', function() {
     'use strict';
 
     var mock = {
         layout: {
-            hoverthrough: true,
+            hoverthrough: 'axis',
             hovermode: 'y',
             grid: {
                 rows: 2,
@@ -2511,7 +2511,7 @@ describe('hover on subplots when hoverthrough is set to true and y hovermodes',
 
     afterEach(destroyGraphDiv);
 
-    it('hovermode: *y* | *y unified* with hoverthrough: true', function() {
+    it('hovermode: *y* | *y unified* with hoverthrough: *axis*', function() {
         var pos = 0;
         var subplot = 'xy';
         Lib.clearThrottle();
@@ -2556,12 +2556,12 @@ describe('hover on subplots when hoverthrough is set to true and y hovermodes',
     });
 });
 
-describe('splom hover on subplots when hoverthrough is set to true and (x|y) hovermodes', function() {
+describe('splom hover on subplots when hoverthrough is set to *axis* and (x|y) hovermodes', function() {
     'use strict';
 
     var mock = Lib.extendDeep({}, splomLogMock);
     mock.layout.hovermode = 'x';
-    mock.layout.hoverthrough = true;
+    mock.layout.hoverthrough = 'axis';
 
     var gd;
 
@@ -2572,7 +2572,7 @@ describe('splom hover on subplots when hoverthrough is set to true and (x|y) hov
 
     afterEach(destroyGraphDiv);
 
-    it('splom hoverthrough: true', function() {
+    it('splom hoverthrough: *axis*', function() {
         Lib.clearThrottle();
         Plotly.Fx.hover(gd, {x: 200, y: 200}, 'xy');
         expect(gd._hoverdata.length).toBe(3);

test/plot-schema.json

@@ -2635,10 +2635,14 @@
     ]
    },
    "hoverthrough": {
-    "description": "Determines expansion of hover effects to other subplots in case of sharing an axis. Has an effect only when `hovermode` is set to *x*, *x unified*, *y* or *y unified*.",
+    "description": "Determines expansion of hover effects to other subplots If *axis*, points from subplots linked to the axis of hovered subplot are included. Has an effect only when `hovermode` is set to *x*, *x unified*, *y* or *y unified*.",
     "dflt": false,
     "editType": "none",
-    "valType": "boolean"
+    "valType": "enumerated",
+    "values": [
+     "axis",
+     false
+    ]
    },
    "images": {
     "items": {