162 lines
4.5 KiB
JavaScript
Executable File
162 lines
4.5 KiB
JavaScript
Executable File
/**
|
|
* @license Highcharts JS v5.0.2 (2016-10-26)
|
|
* Plugin for displaying a message when there is no data visible in chart.
|
|
*
|
|
* (c) 2010-2016 Highsoft AS
|
|
* Author: Oystein Moseng
|
|
*
|
|
* License: www.highcharts.com/license
|
|
*/
|
|
(function(factory) {
|
|
if (typeof module === 'object' && module.exports) {
|
|
module.exports = factory;
|
|
} else {
|
|
factory(Highcharts);
|
|
}
|
|
}(function(Highcharts) {
|
|
(function(H) {
|
|
/**
|
|
* Plugin for displaying a message when there is no data visible in chart.
|
|
*
|
|
* (c) 2010-2016 Highsoft AS
|
|
* Author: Oystein Moseng
|
|
*
|
|
* License: www.highcharts.com/license
|
|
*/
|
|
'use strict';
|
|
|
|
var seriesTypes = H.seriesTypes,
|
|
chartPrototype = H.Chart.prototype,
|
|
defaultOptions = H.getOptions(),
|
|
extend = H.extend,
|
|
each = H.each;
|
|
|
|
// Add language option
|
|
extend(defaultOptions.lang, {
|
|
noData: 'No data to display'
|
|
});
|
|
|
|
// Add default display options for message
|
|
defaultOptions.noData = {
|
|
position: {
|
|
x: 0,
|
|
y: 0,
|
|
align: 'center',
|
|
verticalAlign: 'middle'
|
|
}
|
|
// useHTML: false
|
|
};
|
|
|
|
|
|
// Presentational
|
|
defaultOptions.noData.style = {
|
|
fontWeight: 'bold',
|
|
fontSize: '12px',
|
|
color: '#666666'
|
|
};
|
|
|
|
|
|
/**
|
|
* Define hasData functions for series. These return true if there are data points on this series within the plot area
|
|
*/
|
|
function hasDataPie() {
|
|
return !!this.points.length; /* != 0 */
|
|
}
|
|
|
|
each(['pie', 'gauge', 'waterfall', 'bubble', 'treemap'], function(type) {
|
|
if (seriesTypes[type]) {
|
|
seriesTypes[type].prototype.hasData = hasDataPie;
|
|
}
|
|
});
|
|
|
|
H.Series.prototype.hasData = function() {
|
|
return this.visible && this.dataMax !== undefined && this.dataMin !== undefined; // #3703
|
|
};
|
|
|
|
/**
|
|
* Display a no-data message.
|
|
*
|
|
* @param {String} str An optional message to show in place of the default one
|
|
*/
|
|
chartPrototype.showNoData = function(str) {
|
|
var chart = this,
|
|
options = chart.options,
|
|
text = str || options.lang.noData,
|
|
noDataOptions = options.noData;
|
|
|
|
if (!chart.noDataLabel) {
|
|
chart.noDataLabel = chart.renderer
|
|
.label(
|
|
text,
|
|
0,
|
|
0,
|
|
null,
|
|
null,
|
|
null,
|
|
noDataOptions.useHTML,
|
|
null,
|
|
'no-data'
|
|
);
|
|
|
|
|
|
chart.noDataLabel
|
|
.attr(noDataOptions.attr)
|
|
.css(noDataOptions.style);
|
|
|
|
|
|
chart.noDataLabel.add();
|
|
|
|
chart.noDataLabel.align(extend(chart.noDataLabel.getBBox(), noDataOptions.position), false, 'plotBox');
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Hide no-data message
|
|
*/
|
|
chartPrototype.hideNoData = function() {
|
|
var chart = this;
|
|
if (chart.noDataLabel) {
|
|
chart.noDataLabel = chart.noDataLabel.destroy();
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Returns true if there are data points within the plot area now
|
|
*/
|
|
chartPrototype.hasData = function() {
|
|
var chart = this,
|
|
series = chart.series,
|
|
i = series.length;
|
|
|
|
while (i--) {
|
|
if (series[i].hasData() && !series[i].options.isInternal) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
};
|
|
|
|
/**
|
|
* Show no-data message if there is no data in sight. Otherwise, hide it.
|
|
*/
|
|
function handleNoData() {
|
|
var chart = this;
|
|
if (chart.hasData()) {
|
|
chart.hideNoData();
|
|
} else {
|
|
chart.showNoData();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Add event listener to handle automatic display of no-data message
|
|
*/
|
|
chartPrototype.callbacks.push(function(chart) {
|
|
H.addEvent(chart, 'load', handleNoData);
|
|
H.addEvent(chart, 'redraw', handleNoData);
|
|
});
|
|
|
|
}(Highcharts));
|
|
}));
|