make Plots.graphJson serialize frames too

src/plots/plots.js

@@ -1338,7 +1338,8 @@ plots.graphJson = function(gd, dataonly, mode, output, useDefaults) {
     }
 
     var data = (useDefaults) ? gd._fullData : gd.data,
-        layout = (useDefaults) ? gd._fullLayout : gd.layout;
+        layout = (useDefaults) ? gd._fullLayout : gd.layout,
+        frames = (gd._transitionData || {})._frames;
 
     function stripObj(d) {
         if(typeof d === 'function') {
@@ -1411,6 +1412,8 @@ plots.graphJson = function(gd, dataonly, mode, output, useDefaults) {
 
     if(gd.framework && gd.framework.isPolar) obj = gd.framework.getConfig();
 
+    if(frames) obj.frames = stripObj(frames);
+
     return (output === 'object') ? obj : JSON.stringify(obj);
 };
 

test/jasmine/tests/plots_test.js

@@ -494,4 +494,59 @@ describe('Test Plots', function() {
             assert(dest, src, expected);
         });
     });
+
+    describe('Plots.graphJson', function() {
+
+        it('should serialize data, layout and frames', function(done) {
+            var mock = {
+                data: [{
+                    x: [1, 2, 3],
+                    y: [2, 1, 2]
+                }],
+                layout: {
+                    title: 'base'
+                },
+                frames: [{
+                    data: [{
+                        y: [1, 2, 1],
+                    }],
+                    layout: {
+                        title: 'frame A'
+                    },
+                    name: 'A'
+                }, null, {
+                    data: [{
+                        y: [1, 2, 3],
+                    }],
+                    layout: {
+                        title: 'frame B'
+                    },
+                    name: 'B'
+                }, {
+                    data: [null, false, undefined],
+                    layout: 'garbage',
+                    name: 'garbage'
+                }]
+            };
+
+            Plotly.plot(createGraphDiv(), mock).then(function(gd) {
+                var str = Plots.graphJson(gd, false, 'keepdata');
+                var obj = JSON.parse(str);
+
+                expect(obj.data).toEqual(mock.data);
+                expect(obj.layout).toEqual(mock.layout);
+                expect(obj.frames[0]).toEqual(mock.frames[0]);
+                expect(obj.frames[1]).toEqual(mock.frames[2]);
+                expect(obj.frames[2]).toEqual({
+                    data: [null, false, null],
+                    layout: 'garbage',
+                    name: 'garbage'
+                });
+            })
+            .then(function() {
+                destroyGraphDiv();
+                done();
+            });
+        });
+    });
 });