Function newLegendClickHandler

js/visualization.js:1485–1516

(e, legendItem, legend)

        const defaultLegendClickHandler = Chart.defaults.plugins.legend.onClick;
        const pieDoughnutLegendClickHandler = Chart.controllers.doughnut.overrides.plugins.legend.onClick;
        const newLegendClickHandler = function (e, legendItem, legend) {
            const index = legendItem.datasetIndex;
            const type = legend.chart.config.type;

            OCA.Analytics.unsavedChanges = true;
            OCA.Analytics.Filter.toggleSaveButtonDisplay();

            if (index === -1) {
                if (type === 'doughnut') {
                    for (let dataIndex = 0; dataIndex < legend.chart.data.labels.length; dataIndex++) {
                        if (!legend.chart.getDataVisibility(dataIndex)) {
                            legend.chart.toggleDataVisibility(dataIndex);
                        }
                    }
                } else {
                    for (let datasetIndex = 0; datasetIndex < legend.chart.data.datasets.length; datasetIndex++) {
                        legend.chart.setDatasetVisibility(datasetIndex, true);
                    }
                }
                legend.chart.update();
                OCA.Analytics.Filter.syncChartLegendSelections();
                return;
            }

            // Do the original logic
            if (type === 'pie' || type === 'doughnut') {
                pieDoughnutLegendClickHandler(e, legendItem, legend)
            } else {
                defaultLegendClickHandler(e, legendItem, legend);
            }
            OCA.Analytics.Filter.syncChartLegendSelections();
        };

        const defaultGenerateLabels = Chart.defaults.plugins.legend.labels.generateLabels;
        const customGenerateLabels = function (chart) {