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Mini Shell
Mini Shell
/**
* A Highcharts plugin for exporting data from a rendered chart as CSV, XLS or HTML table
*
* Author: Torstein Honsi
* Licence: MIT
* Version: 1.3.5
*/
/*global Highcharts, window, document, Blob */
(function (Highcharts) {
'use strict';
var each = Highcharts.each,
downloadAttrSupported = document.createElement('a').download !== undefined;
Highcharts.setOptions({
lang: {
downloadCSV: 'Download CSV',
downloadXLS: 'Download XLS'
}
});
/**
* Get the data rows as a two dimensional array
*/
Highcharts.Chart.prototype.getDataRows = function () {
var options = (this.options.exporting || {}).csv || {},
xAxis = this.xAxis[0],
rows = {},
rowArr = [],
dataRows,
names = [],
i,
x,
// Options
dateFormat = options.dateFormat || '%Y-%m-%d %H:%M:%S';
// Loop the series and index values
i = 0;
each(this.series, function (series) {
var keys = series.options.keys,
pointArrayMap = keys || series.pointArrayMap || ['y'],
valueCount = pointArrayMap.length,
j;
if (series.options.includeInCSVExport !== false && series.visible !== false) { // #55
names.push(series.name);
each(series.points, function (point) {
j = 0;
if (!rows[point.x]) {
rows[point.x] = [];
}
rows[point.x].x = point.x;
// Pies, funnels etc. use point name in X row
if (!series.xAxis) {
rows[point.x].name = point.name;
}
while (j < valueCount) {
rows[point.x][i + j] = point[pointArrayMap[j]];
j = j + 1;
}
});
i = i + j;
}
});
// Make a sortable array
for (x in rows) {
if (rows.hasOwnProperty(x)) {
rowArr.push(rows[x]);
}
}
// Sort it by X values
rowArr.sort(function (a, b) {
return a.x - b.x;
});
// Add header row
dataRows = [[xAxis.isDatetimeAxis ? 'DateTime' : 'Category'].concat(names)];
// Transform the rows to CSV
each(rowArr, function (row) {
var category = row.name;
if (!category) {
if (xAxis.isDatetimeAxis) {
category = Highcharts.dateFormat(dateFormat, row.x);
} else if (xAxis.categories) {
category = Highcharts.pick(xAxis.names[row.x], xAxis.categories[row.x], row.x)
} else {
category = row.x;
}
}
// Add the X/date/category
row.unshift(category);
dataRows.push(row);
});
return dataRows;
};
/**
* Get a CSV string
*/
Highcharts.Chart.prototype.getCSV = function (useLocalDecimalPoint) {
var csv = '',
rows = this.getDataRows(),
options = (this.options.exporting || {}).csv || {},
itemDelimiter = options.itemDelimiter || ',', // use ';' for direct import to Excel
lineDelimiter = options.lineDelimiter || '\n'; // '\n' isn't working with the js csv data extraction
// Transform the rows to CSV
each(rows, function (row, i) {
var val = '',
j = row.length,
n = useLocalDecimalPoint ? (1.1).toLocaleString()[1] : '.';
while (j--) {
val = row[j];
if (typeof val === "string") {
val = '"' + val + '"';
}
if (typeof val === 'number') {
if (n === ',') {
val = val.toString().replace(".", ",");
}
}
row[j] = val;
}
// Add the values
csv += row.join(itemDelimiter);
// Add the line delimiter
if (i < rows.length - 1) {
csv += lineDelimiter;
}
});
return csv;
};
/**
* Build a HTML table with the data
*/
Highcharts.Chart.prototype.getTable = function (useLocalDecimalPoint) {
var html = '<table>',
rows = this.getDataRows();
// Transform the rows to HTML
each(rows, function (row, i) {
var tag = i ? 'td' : 'th',
val,
j,
n = useLocalDecimalPoint ? (1.1).toLocaleString()[1] : '.';
html += '<tr>';
for (j = 0; j < row.length; j = j + 1) {
val = row[j];
// Add the cell
if (typeof val === 'number') {
if (n === ',') {
html += '<' + tag + (typeof val === 'number' ? ' class="number"' : '') + '>' + val.toString().replace(".", ",") + '</' + tag + '>';
} else {
html += '<' + tag + (typeof val === 'number' ? ' class="number"' : '') + '>' + val.toString() + '</' + tag + '>';
}
} else {
html += '<' + tag + '>' + val + '</' + tag + '>';
}
}
html += '</tr>';
});
html += '</table>';
return html;
};
function getContent(chart, href, extension, content, MIME) {
var a,
blobObject,
name = (chart.title ? chart.title.textStr.replace(/ /g, '-').toLowerCase() : 'chart'),
options = (chart.options.exporting || {}).csv || {},
url = options.url || 'http://www.highcharts.com/studies/csv-export/download.php';
// Download attribute supported
if (downloadAttrSupported) {
a = document.createElement('a');
a.href = href;
a.target = '_blank';
a.download = name + '.' + extension;
document.body.appendChild(a);
a.click();
a.remove();
} else if (window.Blob && window.navigator.msSaveOrOpenBlob) {
// Falls to msSaveOrOpenBlob if download attribute is not supported
blobObject = new Blob([content]);
window.navigator.msSaveOrOpenBlob(blobObject, name + '.' + extension);
} else {
// Fall back to server side handling
Highcharts.post(url, {
data: content,
type: MIME,
extension: extension
});
}
}
/**
* Call this on click of 'Download CSV' button
*/
Highcharts.Chart.prototype.downloadCSV = function () {
var csv = this.getCSV(true);
getContent(
this,
'data:text/csv,' + csv.replace(/\n/g, '%0A'),
'csv',
csv,
'text/csv'
);
};
/**
* Call this on click of 'Download XLS' button
*/
Highcharts.Chart.prototype.downloadXLS = function () {
var uri = 'data:application/vnd.ms-excel;base64,',
template = '<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:x="urn:schemas-microsoft-com:office:excel" xmlns="http://www.w3.org/TR/REC-html40">' +
'<head><!--[if gte mso 9]><xml><x:ExcelWorkbook><x:ExcelWorksheets><x:ExcelWorksheet>' +
'<x:Name>Ark1</x:Name>' +
'<x:WorksheetOptions><x:DisplayGridlines/></x:WorksheetOptions></x:ExcelWorksheet></x:ExcelWorksheets></x:ExcelWorkbook></xml><![endif]-->' +
'<style>td{border:none;font-family: Calibri, sans-serif;} .number{mso-number-format:"0.00";}</style>' +
'<meta name=ProgId content=Excel.Sheet>' +
'</head><body>' +
this.getTable(true) +
'</body></html>',
base64 = function (s) {
return window.btoa(unescape(encodeURIComponent(s))); // #50
};
getContent(
this,
uri + base64(template),
'xls',
template,
'application/vnd.ms-excel'
);
};
// Add "Download CSV" to the exporting menu. Use download attribute if supported, else
// run a simple PHP script that returns a file. The source code for the PHP script can be viewed at
// https://raw.github.com/highslide-software/highcharts.com/master/studies/csv-export/csv.php
if (Highcharts.getOptions().exporting) {
Highcharts.getOptions().exporting.buttons.contextButton.menuItems.push({
textKey: 'downloadCSV',
onclick: function () { this.downloadCSV(); }
}, {
textKey: 'downloadXLS',
onclick: function () { this.downloadXLS(); }
});
}
}(Highcharts));
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