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layout_defaults.js
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/**
* Copyright 2012-2020, Plotly, Inc.
* All rights reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
'use strict';
var Lib = require('../../lib');
var isUnifiedHover = require('./helpers').isUnifiedHover;
var layoutAttributes = require('./layout_attributes');
var handleHoverModeDefaults = require('./hovermode_defaults');
module.exports = function supplyLayoutDefaults(layoutIn, layoutOut, fullData) {
function coerce(attr, dflt) {
return Lib.coerce(layoutIn, layoutOut, layoutAttributes, attr, dflt);
}
var hoverMode = handleHoverModeDefaults(layoutIn, layoutOut, fullData);
if(hoverMode) {
coerce('hoverdistance');
coerce('spikedistance', isUnifiedHover(hoverMode) ? -1 : undefined);
}
var dragMode = coerce('dragmode');
if(dragMode === 'select') coerce('selectdirection');
// if only mapbox or geo subplots is present on graph,
// reset 'zoom' dragmode to 'pan' until 'zoom' is implemented,
// so that the correct modebar button is active
var hasMapbox = layoutOut._has('mapbox');
var hasGeo = layoutOut._has('geo');
var len = layoutOut._basePlotModules.length;
if(layoutOut.dragmode === 'zoom' && (
((hasMapbox || hasGeo) && len === 1) ||
(hasMapbox && hasGeo && len === 2)
)) {
layoutOut.dragmode = 'pan';
}
};