Function initPrefs

docs/app/js/sanddance-app.js:19356–19388

(prefs, partialInsight)

// Licensed under the MIT license.
var _sanddanceReact = require("@msrvida/sanddance-react");
function initPrefs(prefs, partialInsight) {
    if (partialInsight) {
        const specTypePrefs = prefs[partialInsight.chart] || {};
        prefs[partialInsight.chart] = specTypePrefs;
        for(let _role in partialInsight.columns){
            let role = _role;
            if (role === "color" || role === "x") {
                let rolePrefs = specTypePrefs[role] || {};
                specTypePrefs[role] = rolePrefs;
                let column = partialInsight.columns[role];
                let copySignalValue = (signalName)=>{
                    if (partialInsight.signalValues && partialInsight.signalValues[signalName] && rolePrefs[column]) {
                        const signalValues = rolePrefs[column].signalValues || {};
                        signalValues[signalName] = partialInsight.signalValues[signalName];
                        rolePrefs[column].signalValues = signalValues;
                    }
                };
                switch(role){
                    case "color":
                        rolePrefs[column] = {
                            scheme: partialInsight.scheme,
                            colorBin: partialInsight.colorBin
                        };
                        copySignalValue((0, _sanddanceReact.SandDance).constants.SignalNames.ColorBinCount);
                        break;
                    case "x":
                        copySignalValue((0, _sanddanceReact.SandDance).constants.SignalNames.XBins);
                        break;
                }
            }
        }
    }
}
function saveSignalValuePref(prefs, chart, role, column, signalName, signalValue) {
    const partialInsight = savePref(prefs, chart, role, column, {
        signalValues: {}