File: /var/www/html/formacion.bdp.com.py-bk/lib/amd/build/chart_output_chartjs.min.js.map
{"version":3,"file":"chart_output_chartjs.min.js","sources":["../src/chart_output_chartjs.js"],"sourcesContent":["// This file is part of Moodle - http://moodle.org/\n//\n// Moodle is free software: you can redistribute it and/or modify\n// it under the terms of the GNU General Public License as published by\n// the Free Software Foundation, either version 3 of the License, or\n// (at your option) any later version.\n//\n// Moodle is distributed in the hope that it will be useful,\n// but WITHOUT ANY WARRANTY; without even the implied warranty of\n// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n// GNU General Public License for more details.\n//\n// You should have received a copy of the GNU General Public License\n// along with Moodle. If not, see <http://www.gnu.org/licenses/>.\n\n/**\n * Chart output for chart.js.\n *\n * @copyright 2016 Frédéric Massart - FMCorz.net\n * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later\n * @module core/chart_output_chartjs\n */\ndefine([\n 'jquery',\n 'core/chartjs',\n 'core/chart_axis',\n 'core/chart_bar',\n 'core/chart_output_base',\n 'core/chart_line',\n 'core/chart_pie',\n 'core/chart_series'\n], function($, Chartjs, Axis, Bar, Base, Line, Pie, Series) {\n\n /**\n * Makes an axis ID.\n *\n * @param {String} xy Accepts 'x' and 'y'.\n * @param {Number} index The axis index.\n * @return {String}\n */\n var makeAxisId = function(xy, index) {\n return 'axis-' + xy + '-' + index;\n };\n\n /**\n * Chart output for Chart.js.\n *\n * @class\n * @extends {module:core/chart_output_base}\n */\n function Output() {\n Base.prototype.constructor.apply(this, arguments);\n\n // Make sure that we've got a canvas tag.\n this._canvas = this._node;\n if (this._canvas.prop('tagName') != 'CANVAS') {\n this._canvas = $('<canvas>');\n this._node.append(this._canvas);\n }\n\n this._build();\n }\n Output.prototype = Object.create(Base.prototype);\n\n /**\n * Reference to the chart config object.\n *\n * @type {Object}\n * @protected\n */\n Output.prototype._config = null;\n\n /**\n * Reference to the instance of chart.js.\n *\n * @type {Object}\n * @protected\n */\n Output.prototype._chartjs = null;\n\n /**\n * Reference to the canvas node.\n *\n * @type {Jquery}\n * @protected\n */\n Output.prototype._canvas = null;\n\n /**\n * Builds the config and the chart.\n *\n * @protected\n */\n Output.prototype._build = function() {\n this._config = this._makeConfig();\n this._chartjs = new Chartjs(this._canvas[0], this._config);\n };\n\n /**\n * Clean data.\n *\n * @param {(String|String[])} data A single string or an array of strings.\n * @returns {(String|String[])}\n * @protected\n */\n Output.prototype._cleanData = function(data) {\n if (data instanceof Array) {\n return data.map(function(value) {\n return $('<span>').html(value).text();\n });\n } else {\n return $('<span>').html(data).text();\n }\n };\n\n /**\n * Get the chart type and handles the Chart.js specific chart types.\n *\n * By default returns the current chart TYPE value. Also does the handling of specific chart types, for example\n * check if the bar chart should be horizontal and the pie chart should be displayed as a doughnut.\n *\n * @method getChartType\n * @returns {String} the chart type.\n * @protected\n */\n Output.prototype._getChartType = function() {\n var type = this._chart.getType();\n\n // Bars can be displayed vertically and horizontally, defining horizontalBar type.\n if (this._chart.getType() === Bar.prototype.TYPE && this._chart.getHorizontal() === true) {\n type = 'horizontalBar';\n } else if (this._chart.getType() === Pie.prototype.TYPE && this._chart.getDoughnut() === true) {\n // Pie chart can be displayed as doughnut.\n type = 'doughnut';\n }\n\n return type;\n };\n\n /**\n * Make the axis config.\n *\n * @protected\n * @param {module:core/chart_axis} axis The axis.\n * @param {String} xy Accepts 'x' or 'y'.\n * @param {Number} index The axis index.\n * @return {Object} The axis config.\n */\n Output.prototype._makeAxisConfig = function(axis, xy, index) {\n var scaleData = {\n id: makeAxisId(xy, index)\n };\n\n if (axis.getPosition() !== Axis.prototype.POS_DEFAULT) {\n scaleData.position = axis.getPosition();\n }\n\n if (axis.getLabel() !== null) {\n scaleData.scaleLabel = {\n display: true,\n labelString: this._cleanData(axis.getLabel())\n };\n }\n\n if (axis.getStepSize() !== null) {\n scaleData.ticks = scaleData.ticks || {};\n scaleData.ticks.stepSize = axis.getStepSize();\n }\n\n if (axis.getMax() !== null) {\n scaleData.ticks = scaleData.ticks || {};\n scaleData.ticks.max = axis.getMax();\n }\n\n if (axis.getMin() !== null) {\n scaleData.ticks = scaleData.ticks || {};\n scaleData.ticks.min = axis.getMin();\n }\n\n return scaleData;\n };\n\n /**\n * Make the config config.\n *\n * @protected\n * @return {Object} The axis config.\n */\n Output.prototype._makeConfig = function() {\n var config = {\n type: this._getChartType(),\n data: {\n labels: this._cleanData(this._chart.getLabels()),\n datasets: this._makeDatasetsConfig()\n },\n options: {\n title: {\n display: this._chart.getTitle() !== null,\n text: this._cleanData(this._chart.getTitle())\n }\n }\n };\n var legendOptions = this._chart.getLegendOptions();\n if (legendOptions) {\n config.options.legend = legendOptions;\n }\n\n\n this._chart.getXAxes().forEach(function(axis, i) {\n var axisLabels = axis.getLabels();\n\n config.options.scales = config.options.scales || {};\n config.options.scales.xAxes = config.options.scales.xAxes || [];\n config.options.scales.xAxes[i] = this._makeAxisConfig(axis, 'x', i);\n\n if (axisLabels !== null) {\n config.options.scales.xAxes[i].ticks.callback = function(value, index) {\n return axisLabels[index] || '';\n };\n }\n config.options.scales.xAxes[i].stacked = this._isStacked();\n }.bind(this));\n\n this._chart.getYAxes().forEach(function(axis, i) {\n var axisLabels = axis.getLabels();\n\n config.options.scales = config.options.scales || {};\n config.options.scales.yAxes = config.options.scales.yAxes || [];\n config.options.scales.yAxes[i] = this._makeAxisConfig(axis, 'y', i);\n\n if (axisLabels !== null) {\n config.options.scales.yAxes[i].ticks.callback = function(value) {\n return axisLabels[parseInt(value, 10)] || '';\n };\n }\n config.options.scales.yAxes[i].stacked = this._isStacked();\n }.bind(this));\n\n config.options.tooltips = {\n callbacks: {\n label: this._makeTooltip.bind(this)\n }\n };\n\n return config;\n };\n\n /**\n * Get the datasets configurations.\n *\n * @protected\n * @return {Object[]}\n */\n Output.prototype._makeDatasetsConfig = function() {\n var sets = this._chart.getSeries().map(function(series) {\n var colors = series.hasColoredValues() ? series.getColors() : series.getColor();\n var dataset = {\n label: this._cleanData(series.getLabel()),\n data: series.getValues(),\n type: series.getType(),\n fill: series.getFill(),\n backgroundColor: colors,\n // Pie charts look better without borders.\n borderColor: this._chart.getType() == Pie.prototype.TYPE ? '#fff' : colors,\n lineTension: this._isSmooth(series) ? 0.3 : 0\n };\n\n if (series.getXAxis() !== null) {\n dataset.xAxisID = makeAxisId('x', series.getXAxis());\n }\n if (series.getYAxis() !== null) {\n dataset.yAxisID = makeAxisId('y', series.getYAxis());\n }\n\n return dataset;\n }.bind(this));\n return sets;\n };\n\n /**\n * Get the chart data, add labels and rebuild the tooltip.\n *\n * @param {Object[]} tooltipItem The tooltip item data.\n * @param {Object[]} data The chart data.\n * @returns {String}\n * @protected\n */\n Output.prototype._makeTooltip = function(tooltipItem, data) {\n\n // Get series and chart data to rebuild the tooltip and add labels.\n var series = this._chart.getSeries()[tooltipItem.datasetIndex];\n var serieLabel = series.getLabel();\n var serieLabels = series.getLabels();\n var chartData = data.datasets[tooltipItem.datasetIndex].data;\n var tooltipData = chartData[tooltipItem.index];\n\n // Build default tooltip.\n var tooltip = [];\n\n // Pie and doughnut charts does not have axis.\n if (tooltipItem.xLabel == '' && tooltipItem.yLabel == '') {\n var chartLabels = this._cleanData(this._chart.getLabels());\n tooltip.push(chartLabels[tooltipItem.index]);\n }\n\n // Add series labels to the tooltip if any.\n if (serieLabels !== null) {\n tooltip.push(this._cleanData(serieLabels[tooltipItem.index]));\n } else {\n tooltip.push(this._cleanData(serieLabel) + ': ' + tooltipData);\n }\n\n return tooltip;\n };\n\n /**\n * Verify if the chart line is smooth or not.\n *\n * @protected\n * @param {module:core/chart_series} series The series.\n * @returns {Bool}\n */\n Output.prototype._isSmooth = function(series) {\n var smooth = false;\n if (this._chart.getType() === Line.prototype.TYPE) {\n smooth = series.getSmooth();\n if (smooth === null) {\n smooth = this._chart.getSmooth();\n }\n } else if (series.getType() === Series.prototype.TYPE_LINE) {\n smooth = series.getSmooth();\n }\n\n return smooth;\n };\n\n /**\n * Verify if the bar chart 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