no-data-to-display.src.js
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/**
* @license Highcharts JS v6.2.0 (2018-10-17)
* Plugin for displaying a message when there is no data visible in chart.
*
* (c) 2010-2017 Highsoft AS
* Author: Oystein Moseng
*
* License: www.highcharts.com/license
*/
'use strict';
(function (factory) {
if (typeof module === 'object' && module.exports) {
module.exports = factory;
} else if (typeof define === 'function' && define.amd) {
define(function () {
return factory;
});
} else {
factory(Highcharts);
}
}(function (Highcharts) {
(function (H) {
/**
* Plugin for displaying a message when there is no data visible in chart.
*
* (c) 2010-2017 Highsoft AS
* Author: Oystein Moseng
*
* License: www.highcharts.com/license
*/
var seriesTypes = H.seriesTypes,
chartPrototype = H.Chart.prototype,
defaultOptions = H.getOptions(),
extend = H.extend,
each = H.each;
// Add language option
extend(defaultOptions.lang, {
/**
* The text to display when the chart contains no data. Requires the
* no-data module, see [noData](#noData).
*
* @type {String}
* @default No data to display
* @since 3.0.8
* @product highcharts highstock
* @sample highcharts/no-data-to-display/no-data-line
* No-data text
* @apioption lang.noData
*/
noData: 'No data to display'
});
// Add default display options for message
/**
* Options for displaying a message like "No data to display".
* This feature requires the file no-data-to-display.js to be loaded in the
* page. The actual text to display is set in the lang.noData option.
* @type {Object}
*
* @sample highcharts/no-data-to-display/no-data-line
* Line chart with no-data module
* @sample highcharts/no-data-to-display/no-data-pie
* Pie chart with no-data module
* @optionparent noData
*/
defaultOptions.noData = {
/**
* An object of additional SVG attributes for the no-data label.
*
* @type {Object}
* @since 3.0.8
* @product highcharts highstock gantt
* @apioption noData.attr
*/
/**
* Whether to insert the label as HTML, or as pseudo-HTML rendered with
* SVG.
*
* @type {Boolean}
* @default false
* @since 4.1.10
* @product highcharts highstock gantt
* @apioption noData.useHTML
*/
/**
* The position of the no-data label, relative to the plot area.
*
* @type {Object}
* @default { "x": 0, "y": 0, "align": "center", "verticalAlign": "middle" }
* @since 3.0.8
*/
position: {
/**
* Horizontal offset of the label, in pixels.
*
* @type {Number}
* @default 0
* @product highcharts highstock gantt
*/
x: 0,
/**
* Vertical offset of the label, in pixels.
*
* @type {Number}
* @default 0
* @product highcharts highstock gantt
*/
y: 0,
/**
* Horizontal alignment of the label.
*
* @validvalue ["left", "center", "right"]
* @type {String}
* @default center
*/
align: 'center',
/**
* Vertical alignment of the label.
*
* @validvalue ["top", "middle", "bottom"]
* @type {String}
* @default middle
* @product highcharts highstock gantt
*/
verticalAlign: 'middle'
}
};
// Define hasData function for non-cartesian seris. Returns true if the series
// has points at all.
each([
'bubble',
'gauge',
'heatmap',
'pie',
'sankey',
'treemap',
'waterfall'
], function (type) {
if (seriesTypes[type]) {
seriesTypes[type].prototype.hasData = function () {
return !!this.points.length; // != 0
};
}
});
/**
* Define hasData functions for series. These return true if there are data
* points on this series within the plot area.
*/
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 && options.lang.noData),
noDataOptions = options && options.noData;
if (!chart.noDataLabel && chart.renderer) {
chart.noDataLabel = chart.renderer
.label(
text,
0,
0,
null,
null,
null,
noDataOptions.useHTML,
null,
'no-data'
);
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 chart.loadingShown; // #4588
};
/**
* Add event listener to handle automatic show or hide no-data message
*/
H.addEvent(H.Chart, 'render', function handleNoData() {
if (this.hasData()) {
this.hideNoData();
} else {
this.showNoData();
}
});
}(Highcharts));
return (function () {
}());
}));