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fix: React to config changes #7475

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camdecoster merged 8 commits into master from react-to-config-changes
Sep 4, 2025
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1 change: 1 addition & 0 deletions draftlogs/7475_fix.md
View file Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
- Update plot with all config changes during call to `Plotly.react` [#7475](https://github.com/plotly/plotly.js/pull/7475)
229 changes: 120 additions & 109 deletions src/plot_api/plot_api.js
View file Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2615,129 +2615,140 @@ function react(gd, data, layout, config) {
configChanged = diffConfig(oldConfig, gd._context);
}

gd.data = data || [];
helpers.cleanData(gd.data);
gd.layout = layout || {};
helpers.cleanLayout(gd.layout);

applyUIRevisions(gd.data, gd.layout, oldFullData, oldFullLayout);

// "true" skips updating calcdata and remapping arrays from calcTransforms,
// which supplyDefaults usually does at the end, but we may need to NOT do
// if the diff (which we haven't determined yet) says we'll recalc
Plots.supplyDefaults(gd, {skipUpdateCalc: true});

var newFullData = gd._fullData;
var newFullLayout = gd._fullLayout;
var immutable = newFullLayout.datarevision === undefined;
var transition = newFullLayout.transition;

var relayoutFlags = diffLayout(gd, oldFullLayout, newFullLayout, immutable, transition);
var newDataRevision = relayoutFlags.newDataRevision;
var restyleFlags = diffData(gd, oldFullData, newFullData, immutable, transition, newDataRevision);

// TODO: how to translate this part of relayout to Plotly.react?
// // Setting width or height to null must reset the graph's width / height
// // back to its initial value as computed during the first pass in Plots.plotAutoSize.
// //
// // To do so, we must manually set them back here using the _initialAutoSize cache.
// if(['width', 'height'].indexOf(ai) !== -1 && vi === null) {
// fullLayout[ai] = gd._initialAutoSize[ai];
// }

if(updateAutosize(gd)) relayoutFlags.layoutReplot = true;

// clear calcdata and empty categories if required
if(restyleFlags.calc || relayoutFlags.calc) {
gd.calcdata = undefined;
var allNames = Object.getOwnPropertyNames(newFullLayout);
for(var q = 0; q < allNames.length; q++) {
var name = allNames[q];
var start = name.substring(0, 5);
if(start === 'xaxis' || start === 'yaxis') {
var emptyCategories = newFullLayout[name]._emptyCategories;
if(emptyCategories) emptyCategories();
if(configChanged) {
// Save event listeners as newPlot will remove them
const eventListeners = gd._ev.eventNames().map(name => [name, gd._ev.listeners(name)]);
plotDone = exports.newPlot(gd, data, layout, config)
.then(() => {
for (const [name, callbacks] of eventListeners) {
callbacks.forEach((cb) => gd.on(name, cb));
}

// Call react in case transition should have occurred along with config change
return exports.react(gd, data, layout, config)
});
} else {
gd.data = data || [];
helpers.cleanData(gd.data);
gd.layout = layout || {};
helpers.cleanLayout(gd.layout);

applyUIRevisions(gd.data, gd.layout, oldFullData, oldFullLayout);

// "true" skips updating calcdata and remapping arrays from calcTransforms,
// which supplyDefaults usually does at the end, but we may need to NOT do
// if the diff (which we haven't determined yet) says we'll recalc
Plots.supplyDefaults(gd, {skipUpdateCalc: true});

var newFullData = gd._fullData;
var newFullLayout = gd._fullLayout;
var immutable = newFullLayout.datarevision === undefined;
var transition = newFullLayout.transition;

var relayoutFlags = diffLayout(gd, oldFullLayout, newFullLayout, immutable, transition);
var newDataRevision = relayoutFlags.newDataRevision;
var restyleFlags = diffData(gd, oldFullData, newFullData, immutable, transition, newDataRevision);

// TODO: how to translate this part of relayout to Plotly.react?
// // Setting width or height to null must reset the graph's width / height
// // back to its initial value as computed during the first pass in Plots.plotAutoSize.
// //
// // To do so, we must manually set them back here using the _initialAutoSize cache.
// if(['width', 'height'].indexOf(ai) !== -1 && vi === null) {
// fullLayout[ai] = gd._initialAutoSize[ai];
// }

if(updateAutosize(gd)) relayoutFlags.layoutReplot = true;

// clear calcdata and empty categories if required
if(restyleFlags.calc || relayoutFlags.calc) {
gd.calcdata = undefined;
var allNames = Object.getOwnPropertyNames(newFullLayout);
for(var q = 0; q < allNames.length; q++) {
var name = allNames[q];
var start = name.substring(0, 5);
if(start === 'xaxis' || start === 'yaxis') {
var emptyCategories = newFullLayout[name]._emptyCategories;
if(emptyCategories) emptyCategories();
}
}
// otherwise do the calcdata updates and calcTransform array remaps that we skipped earlier
} else {
Plots.supplyDefaultsUpdateCalc(gd.calcdata, newFullData);
}
// otherwise do the calcdata updates and calcTransform array remaps that we skipped earlier
} else {
Plots.supplyDefaultsUpdateCalc(gd.calcdata, newFullData);
}

// Note: what restyle/relayout use impliedEdits and clearAxisTypes for
// must be handled by the user when using Plotly.react.
// Note: what restyle/relayout use impliedEdits and clearAxisTypes for
// must be handled by the user when using Plotly.react.

// fill in redraw sequence
var seq = [];
// fill in redraw sequence
var seq = [];

if(frames) {
gd._transitionData = {};
Plots.createTransitionData(gd);
seq.push(addFrames);
}
if(frames) {
gd._transitionData = {};
Plots.createTransitionData(gd);
seq.push(addFrames);
}

// Transition pathway,
// only used when 'transition' is set by user and
// when at least one animatable attribute has changed,
// N.B. config changed aren't animatable
if(newFullLayout.transition && !configChanged && (restyleFlags.anim || relayoutFlags.anim)) {
if(relayoutFlags.ticks) seq.push(subroutines.doTicksRelayout);
// Transition pathway,
// only used when 'transition' is set by user and
// when at least one animatable attribute has changed,
// N.B. config changed aren't animatable
if(newFullLayout.transition && (restyleFlags.anim || relayoutFlags.anim)) {
if(relayoutFlags.ticks) seq.push(subroutines.doTicksRelayout);

Plots.doCalcdata(gd);
subroutines.doAutoRangeAndConstraints(gd);
Plots.doCalcdata(gd);
subroutines.doAutoRangeAndConstraints(gd);

seq.push(function() {
return Plots.transitionFromReact(gd, restyleFlags, relayoutFlags, oldFullLayout);
});
} else if(restyleFlags.fullReplot || relayoutFlags.layoutReplot || configChanged) {
gd._fullLayout._skipDefaults = true;
seq.push(exports._doPlot);
} else {
for(var componentType in relayoutFlags.arrays) {
var indices = relayoutFlags.arrays[componentType];
if(indices.length) {
var drawOne = Registry.getComponentMethod(componentType, 'drawOne');
if(drawOne !== Lib.noop) {
for(var i = 0; i < indices.length; i++) {
drawOne(gd, indices[i]);
}
} else {
var draw = Registry.getComponentMethod(componentType, 'draw');
if(draw === Lib.noop) {
throw new Error('cannot draw components: ' + componentType);
seq.push(function() {
return Plots.transitionFromReact(gd, restyleFlags, relayoutFlags, oldFullLayout);
});
} else if(restyleFlags.fullReplot || relayoutFlags.layoutReplot) {
gd._fullLayout._skipDefaults = true;
seq.push(exports._doPlot);
} else {
for(var componentType in relayoutFlags.arrays) {
var indices = relayoutFlags.arrays[componentType];
if(indices.length) {
var drawOne = Registry.getComponentMethod(componentType, 'drawOne');
if(drawOne !== Lib.noop) {
for(var i = 0; i < indices.length; i++) {
drawOne(gd, indices[i]);
}
} else {
var draw = Registry.getComponentMethod(componentType, 'draw');
if(draw === Lib.noop) {
throw new Error('cannot draw components: ' + componentType);
}
draw(gd);
}
draw(gd);
}
}
}

seq.push(Plots.previousPromises);
if(restyleFlags.style) seq.push(subroutines.doTraceStyle);
if(restyleFlags.colorbars || relayoutFlags.colorbars) seq.push(subroutines.doColorBars);
if(relayoutFlags.legend) seq.push(subroutines.doLegend);
if(relayoutFlags.layoutstyle) seq.push(subroutines.layoutStyles);
if(relayoutFlags.axrange) addAxRangeSequence(seq);
if(relayoutFlags.ticks) seq.push(subroutines.doTicksRelayout);
if(relayoutFlags.modebar) seq.push(subroutines.doModeBar);
if(relayoutFlags.camera) seq.push(subroutines.doCamera);
seq.push(emitAfterPlot);
}
seq.push(Plots.previousPromises);
if(restyleFlags.style) seq.push(subroutines.doTraceStyle);
if(restyleFlags.colorbars || relayoutFlags.colorbars) seq.push(subroutines.doColorBars);
if(relayoutFlags.legend) seq.push(subroutines.doLegend);
if(relayoutFlags.layoutstyle) seq.push(subroutines.layoutStyles);
if(relayoutFlags.axrange) addAxRangeSequence(seq);
if(relayoutFlags.ticks) seq.push(subroutines.doTicksRelayout);
if(relayoutFlags.modebar) seq.push(subroutines.doModeBar);
if(relayoutFlags.camera) seq.push(subroutines.doCamera);
seq.push(emitAfterPlot);
}

seq.push(
Plots.rehover,
Plots.redrag,
Plots.reselect
);
seq.push(
Plots.rehover,
Plots.redrag,
Plots.reselect
);

plotDone = Lib.syncOrAsync(seq, gd);
if(!plotDone || !plotDone.then) plotDone = Promise.resolve(gd);
plotDone = Lib.syncOrAsync(seq, gd);
if(!plotDone || !plotDone.then) plotDone = Promise.resolve(gd);
}
}

return plotDone.then(function() {
gd.emit('plotly_react', {
data: data,
layout: layout
});
return plotDone.then(() => {
if (!configChanged) gd.emit('plotly_react', { config, data, layout });
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@emilykl emilykl Sep 4, 2025

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@camdecoster Is there a reason we don't want to emit a plotly_react event if the config changed?

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@camdecoster camdecoster Sep 4, 2025

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It will emit twice for one call to react without that check. This is because we call newPlot and then react again after that, all within the first call to react.

emilykl reacted with thumbs up emoji

return gd;
});
Expand Down Expand Up @@ -3675,11 +3686,11 @@ function makePlotFramework(gd) {
// The plot container should always take the full with the height of its
// parent (the graph div). This ensures that for responsive plots
// without a height or width set, the paper div will take up the full
// height & width of the graph div.
// height & width of the graph div.
// So, for responsive plots without a height or width set, if the plot
// container's height is left to 'auto', its height will be dictated by
// its childrens' height. (The plot container's only child is the paper
// div.)
// div.)
// In this scenario, the paper div's height will be set to 100%,
// which will be 100% of the plot container's auto height. That is
// meaninglesss, so the browser will use the paper div's children to set
Expand Down
2 changes: 2 additions & 0 deletions test/jasmine/tests/plot_api_react_test.js
View file Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -425,13 +425,15 @@ describe('@noCIdep Plotly.react', function() {
.then(function() {
expect(d3SelectAll('.drag').size()).toBe(0);
expect(d3SelectAll('.gtitle').size()).toBe(0);
expect(d3SelectAll('.gtitle-subtitle').size()).toBe(0);
countCalls({plot: 1});

return Plotly.react(gd, data, layout, {});
})
.then(function() {
expect(d3SelectAll('.drag').size()).toBe(11);
expect(d3SelectAll('.gtitle').size()).toBe(0);
expect(d3SelectAll('.gtitle-subtitle').size()).toBe(0);
countCalls({plot: 1});
})
.then(done, done.fail);
Expand Down
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