115 lines
3.2 KiB
JavaScript
115 lines
3.2 KiB
JavaScript
// From Friss tuto (https://github.com/FrissAnalytics/shinyJsTutorials/blob/master/tutorials/tutorial_03.Rmd)
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export function getWidget(id) {
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var htmlWidgetsObj = HTMLWidgets.find("#" + id);
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var widgetObj;
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if (typeof htmlWidgetsObj !== "undefined") {
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widgetObj = htmlWidgetsObj.getChart();
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}
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return widgetObj;
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}
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export function isSingleSerie(options) {
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var typeLabels = ["pie", "radialBar", "donut"];
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var lab = typeLabels.indexOf(options.w.config.chart.type) > -1;
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var single = options.w.config.series.length === 1;
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return lab | single;
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}
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export function isDatetimeAxis(chartContext) {
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if (
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chartContext.hasOwnProperty("w") &&
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chartContext.w.hasOwnProperty("config") &&
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chartContext.w.config.hasOwnProperty("xaxis") &&
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chartContext.w.config.xaxis.hasOwnProperty("type")
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) {
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return chartContext.w.config.xaxis.type == "datetime";
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} else {
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return false;
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}
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}
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export function getSelection(chartContext, selectedDataPoints, serieIndex) {
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var typeLabels = ["pie", "radialBar", "donut"];
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var typeXY = ["scatter", "bubble"];
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var selected;
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if (typeLabels.indexOf(chartContext.opts.chart.type) > -1) {
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var labels = chartContext.opts.labels;
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selected = selectedDataPoints[serieIndex].map(function(index) {
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return labels[index];
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});
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} else {
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var data = chartContext.opts.series[serieIndex].data;
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selected = selectedDataPoints[serieIndex].map(function(index) {
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var val = data[index];
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if (typeXY.indexOf(chartContext.opts.chart.type) < 0) {
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if (val.hasOwnProperty("x")) {
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val = val.x;
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} else {
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val = val[0];
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}
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}
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return val;
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});
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}
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//console.log(selected);
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if (typeXY.indexOf(chartContext.opts.chart.type) > -1) {
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selected = {
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x: selected.map(function(obj) {
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return obj.x;
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}),
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y: selected.map(function(obj) {
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return obj.y;
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})
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};
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}
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if (typeof selected == "undefined") {
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selected = null;
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}
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return selected;
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}
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export function getYaxis(axis) {
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var yzoom = { min: null, max: null };
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if (typeof axis.yaxis !== "undefined" && axis.yaxis !== null) {
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var y_axis;
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if (axis.yaxis.hasOwnProperty("min")) {
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y_axis = axis.yaxis;
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} else {
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y_axis = axis.yaxis[0];
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}
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if (y_axis.hasOwnProperty("min") && typeof y_axis.min !== "undefined") {
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yzoom.min = y_axis.min;
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}
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if (y_axis.hasOwnProperty("max") && typeof y_axis.max !== "undefined") {
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yzoom.max = y_axis.max;
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}
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}
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return yzoom;
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}
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export function getXaxis(axis) {
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var xzoom = { min: null, max: null };
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if (typeof axis.xaxis !== "undefined") {
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var x_axis = axis.xaxis;
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if (x_axis.hasOwnProperty("min") && typeof x_axis.min !== "undefined") {
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xzoom.min = x_axis.min;
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}
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if (x_axis.hasOwnProperty("max") && typeof x_axis.max !== "undefined") {
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xzoom.max = x_axis.max;
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}
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}
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return xzoom;
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}
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export function exportChart(x, chart) {
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if (x.hasOwnProperty("shinyEvents") & HTMLWidgets.shinyMode) {
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if (x.shinyEvents.hasOwnProperty("export")) {
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setTimeout(function() {
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chart.dataURI().then(function(imgURI) {
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Shiny.setInputValue(x.shinyEvents.export.inputId, imgURI);
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});
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}, 1000);
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}
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}
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}
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