highcharts
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JavaScript charting framework
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JavaScript
// SPDX-License-Identifier: LicenseRef-Highcharts
/**
* @license Highcharts JS v12.6.0 (2026-04-13)
* Treegraph chart series type
* @module highcharts/modules/treegraph
* @requires highcharts
* @requires highcharts/modules/treemap
*
* (c) 2010-2026 Highsoft AS
* Author: Paweł Lysy Grzegorz Blachliński
*
* A commercial license may be required depending on use.
* See www.highcharts.com/license
*/
(function webpackUniversalModuleDefinition(root, factory) {
if(typeof exports === 'object' && typeof module === 'object')
module.exports = factory(root["_Highcharts"], root["_Highcharts"]["SeriesRegistry"], root["_Highcharts"]["SVGRenderer"], root["_Highcharts"]["Point"], root["_Highcharts"]["Color"], root["_Highcharts"]["SVGElement"]);
else if(typeof define === 'function' && define.amd)
define("highcharts/modules/treegraph", ["highcharts/highcharts"], function (amd1) {return factory(amd1,amd1["SeriesRegistry"],amd1["SVGRenderer"],amd1["Point"],amd1["Color"],amd1["SVGElement"]);});
else if(typeof exports === 'object')
exports["highcharts/modules/treegraph"] = factory(root["_Highcharts"], root["_Highcharts"]["SeriesRegistry"], root["_Highcharts"]["SVGRenderer"], root["_Highcharts"]["Point"], root["_Highcharts"]["Color"], root["_Highcharts"]["SVGElement"]);
else
root["Highcharts"] = factory(root["Highcharts"], root["Highcharts"]["SeriesRegistry"], root["Highcharts"]["SVGRenderer"], root["Highcharts"]["Point"], root["Highcharts"]["Color"], root["Highcharts"]["SVGElement"]);
})(typeof window === 'undefined' ? this : window, (__WEBPACK_EXTERNAL_MODULE__944__, __WEBPACK_EXTERNAL_MODULE__512__, __WEBPACK_EXTERNAL_MODULE__540__, __WEBPACK_EXTERNAL_MODULE__260__, __WEBPACK_EXTERNAL_MODULE__620__, __WEBPACK_EXTERNAL_MODULE__28__) => {
return /******/ (() => { // webpackBootstrap
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/************************************************************************/
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var __webpack_exports__ = {};
// EXPORTS
__webpack_require__.d(__webpack_exports__, {
"default": () => (/* binding */ treegraph_src)
});
// EXTERNAL MODULE: external {"amd":["highcharts/highcharts"],"commonjs":["highcharts"],"commonjs2":["highcharts"],"root":["Highcharts"]}
var highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_ = __webpack_require__(944);
var highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_default = /*#__PURE__*/__webpack_require__.n(highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_);
;// ./code/es-modules/Series/PathUtilities.js
/* *
*
* (c) 2010-2026 Highsoft AS
* Author: Paweł Lysy
*
* A commercial license may be required depending on use.
* See www.highcharts.com/license
*
*
* */
const getLinkPath = {
'default': getOrthogonalPath,
orthogonal: getOrthogonalPath,
straight: getStraightPath,
curved: getCurvedPath
};
/**
*
*/
function getOrthogonalPath(pathParams) {
const { x1, y1, x2, y2, bendAt, width = 0, inverted = false, radius, parentVisible } = pathParams;
if (parentVisible) {
const bend = bendAt ?? (width / 2);
return applyRadius([
['M', x1, y1],
['L', x1 + bend * (inverted ? -1 : 1), y1],
['L', x1 + bend * (inverted ? -1 : 1), y2],
['L', x2, y2]
], radius);
}
return [
['M', x1, y1],
['L', x1, y1],
['C', x1, y1, x1, y2, x1, y2],
['L', x1, y2],
['C', x1, y1, x1, y2, x1, y2],
['L', x1, y2]
];
}
/**
*
*/
function getStraightPath(pathParams) {
const { x1, y1, x2, y2, width = 0, inverted = false, parentVisible } = pathParams;
return parentVisible ? [
['M', x1, y1],
['L', x1 + width * (inverted ? -1 : 1), y2],
['L', x2, y2]
] : [
['M', x1, y1],
['L', x1, y2],
['L', x1, y2]
];
}
/**
*
*/
function getCurvedPath(pathParams) {
const { x1, y1, x2, y2, offset = 0, width = 0, inverted = false, parentVisible } = pathParams;
return parentVisible ?
[
['M', x1, y1],
[
'C',
x1 + offset,
y1,
x1 - offset + width * (inverted ? -1 : 1),
y2,
x1 + width * (inverted ? -1 : 1),
y2
],
['L', x2, y2]
] :
[
['M', x1, y1],
['C', x1, y1, x1, y2, x1, y2],
['L', x2, y2]
];
}
/**
* General function to apply corner radius to a path
* @private
*/
function applyRadius(path, r) {
const d = [];
for (let i = 0; i < path.length; i++) {
const x = path[i][1];
const y = path[i][2];
if (typeof x === 'number' && typeof y === 'number') {
// MoveTo
if (i === 0) {
d.push(['M', x, y]);
}
else if (i === path.length - 1) {
d.push(['L', x, y]);
// CurveTo
}
else if (r) {
const prevSeg = path[i - 1];
const nextSeg = path[i + 1];
if (prevSeg && nextSeg) {
const x1 = prevSeg[1], y1 = prevSeg[2], x2 = nextSeg[1], y2 = nextSeg[2];
// Only apply to breaks
if (typeof x1 === 'number' &&
typeof x2 === 'number' &&
typeof y1 === 'number' &&
typeof y2 === 'number' &&
x1 !== x2 &&
y1 !== y2) {
const directionX = x1 < x2 ? 1 : -1, directionY = y1 < y2 ? 1 : -1;
d.push([
'L',
x - directionX * Math.min(Math.abs(x - x1), r),
y - directionY * Math.min(Math.abs(y - y1), r)
], [
'C',
x,
y,
x,
y,
x + directionX * Math.min(Math.abs(x - x2), r),
y + directionY * Math.min(Math.abs(y - y2), r)
]);
}
}
// LineTo
}
else {
d.push(['L', x, y]);
}
}
}
return d;
}
const PathUtilities = {
applyRadius,
getLinkPath
};
/* harmony default export */ const Series_PathUtilities = (PathUtilities);
// EXTERNAL MODULE: external {"amd":["highcharts/highcharts","SeriesRegistry"],"commonjs":["highcharts","SeriesRegistry"],"commonjs2":["highcharts","SeriesRegistry"],"root":["Highcharts","SeriesRegistry"]}
var highcharts_SeriesRegistry_commonjs_highcharts_SeriesRegistry_commonjs2_highcharts_SeriesRegistry_root_Highcharts_SeriesRegistry_ = __webpack_require__(512);
var highcharts_SeriesRegistry_commonjs_highcharts_SeriesRegistry_commonjs2_highcharts_SeriesRegistry_root_Highcharts_SeriesRegistry_default = /*#__PURE__*/__webpack_require__.n(highcharts_SeriesRegistry_commonjs_highcharts_SeriesRegistry_commonjs2_highcharts_SeriesRegistry_root_Highcharts_SeriesRegistry_);
// EXTERNAL MODULE: external {"amd":["highcharts/highcharts","SVGRenderer"],"commonjs":["highcharts","SVGRenderer"],"commonjs2":["highcharts","SVGRenderer"],"root":["Highcharts","SVGRenderer"]}
var highcharts_SVGRenderer_commonjs_highcharts_SVGRenderer_commonjs2_highcharts_SVGRenderer_root_Highcharts_SVGRenderer_ = __webpack_require__(540);
var highcharts_SVGRenderer_commonjs_highcharts_SVGRenderer_commonjs2_highcharts_SVGRenderer_root_Highcharts_SVGRenderer_default = /*#__PURE__*/__webpack_require__.n(highcharts_SVGRenderer_commonjs_highcharts_SVGRenderer_commonjs2_highcharts_SVGRenderer_root_Highcharts_SVGRenderer_);
;// ./code/es-modules/Series/Treegraph/TreegraphNode.js
/* *
*
* (c) 2010-2026 Highsoft AS
* Author: Paweł Lysy Grzegorz Blachliński
*
* A commercial license may be required depending on use.
* See www.highcharts.com/license
*
*
* */
const { seriesTypes: { treemap: { prototype: { NodeClass: TreemapNode } } } } = (highcharts_SeriesRegistry_commonjs_highcharts_SeriesRegistry_commonjs2_highcharts_SeriesRegistry_root_Highcharts_SeriesRegistry_default());
/* *
*
* Class
*
* */
/**
* @private
* @class
*/
class TreegraphNode extends TreemapNode {
constructor() {
/* *
*
* Properties
*
* */
super(...arguments);
this.mod = 0;
this.shift = 0;
this.change = 0;
this.children = [];
this.preX = 0;
this.hidden = false;
this.wasVisited = false;
this.collapsed = false;
}
/* *
*
* Functions
*
* */
/**
* Get the next left node which is either first child or thread.
*
* @return {TreegraphNode|undefined}
* Next left node child or thread.
*/
nextLeft() {
return this.getLeftMostChild() || this.thread;
}
/**
* Get the next right node which is either last child or thread.
*
* @return {TreegraphNode|undefined}
* Next right node child or thread.
*/
nextRight() {
return this.getRightMostChild() || this.thread;
}
/**
* Return the left one of the greatest uncommon ancestors of a
* leftInternal node and it's right neighbor.
*
* @param {TreegraphNode} leftIntNode
* @param {TreegraphNode} defaultAncestor
* @return {TreegraphNode}
* Left one of the greatest uncommon ancestors of a leftInternal
* node and it's right neighbor.
*
*/
getAncestor(leftIntNode, defaultAncestor) {
const leftAnc = leftIntNode.ancestor;
if (leftAnc.children[0] === this.children[0]) {
return leftIntNode.ancestor;
}
return defaultAncestor;
}
/**
* Get node's first sibling, which is not hidden.
*
* @return {TreegraphNode|undefined}
* First sibling of the node which is not hidden or undefined, if it
* does not exists.
*/
getLeftMostSibling() {
const parent = this.getParent();
if (parent) {
for (const child of parent.children) {
if (child && child.point.visible) {
return child;
}
}
}
}
/**
* Check if the node is a leaf (if it has any children).
*
* @return {boolean}
* If the node has no visible children return true.
*/
hasChildren() {
const children = this.children;
for (let i = 0; i < children.length; i++) {
if (children[i].point.visible) {
return true;
}
}
return false;
}
/**
* Get node's left sibling (if it exists).
*
* @return {TreegraphNode|undefined}
* Left sibling of the node
*/
getLeftSibling() {
const parent = this.getParent();
if (parent) {
const children = parent.children;
for (let i = this.relativeXPosition - 1; i >= 0; i--) {
if (children[i] && children[i].point.visible) {
return children[i];
}
}
}
}
/**
* Get the node's first child (if it exists).
*
* @return {TreegraphNode|undefined}
* Node's first child which isn't hidden.
*/
getLeftMostChild() {
const children = this.children;
for (let i = 0; i < children.length; i++) {
if (children[i].point.visible) {
return children[i];
}
}
}
/**
* Get the node's last child (if it exists).
*
* @return {TreegraphNode|undefined}
* Node's last child which isn't hidden.
*/
getRightMostChild() {
const children = this.children;
for (let i = children.length - 1; i >= 0; i--) {
if (children[i].point.visible) {
return children[i];
}
}
}
/**
* Get the parent of current node or return undefined for root of the
* tree.
*
* @return {TreegraphNode|undefined}
* Node's parent or undefined for root.
*/
getParent() {
return this.parentNode;
}
/**
* Get node's first child which is not hidden.
*
* @return {TreegraphNode|undefined}
* First child.
*/
getFirstChild() {
const children = this.children;
for (let i = 0; i < children.length; i++) {
if (children[i].point.visible) {
return children[i];
}
}
}
}
/* *
*
* Default Export
*
* */
/* harmony default export */ const Treegraph_TreegraphNode = (TreegraphNode);
// EXTERNAL MODULE: external {"amd":["highcharts/highcharts","Point"],"commonjs":["highcharts","Point"],"commonjs2":["highcharts","Point"],"root":["Highcharts","Point"]}
var highcharts_Point_commonjs_highcharts_Point_commonjs2_highcharts_Point_root_Highcharts_Point_ = __webpack_require__(260);
var highcharts_Point_commonjs_highcharts_Point_commonjs2_highcharts_Point_root_Highcharts_Point_default = /*#__PURE__*/__webpack_require__.n(highcharts_Point_commonjs_highcharts_Point_commonjs2_highcharts_Point_root_Highcharts_Point_);
;// ./code/es-modules/Shared/Utilities.js
/* *
*
* (c) 2009-2026 Highsoft AS
*
* A commercial license may be required depending on use.
* See www.highcharts.com/license
*
*
* */
const { doc, win } = (highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_default());
/**
* Add an event listener.
*
* @function Highcharts.addEvent<T>
*
* @param {Highcharts.Class<T>|T} el
* The element or object to add a listener to. It can be a
* {@link HTMLDOMElement}, an {@link SVGElement} or any other object.
*
* @param {string} type
* The event type.
*
* @param {Highcharts.EventCallbackFunction<T>|Function} fn
* The function callback to execute when the event is fired.
*
* @param {Highcharts.EventOptionsObject} [options]
* Options for adding the event.
*
* @sample highcharts/members/addevent
* Use a general `render` event to draw shapes on a chart
*
* @return {Function}
* A callback function to remove the added event.
*/
function addEvent(el, type, fn, options = {}) {
// Add hcEvents to either the prototype (in case we're running addEvent on a
// class) or the instance. If hasOwnProperty('hcEvents') is false, it is
// inherited down the prototype chain, in which case we need to set the
// property on this instance (which may itself be a prototype).
const owner = typeof el === 'function' && el.prototype || el;
if (!Object.hasOwnProperty.call(owner, 'hcEvents')) {
owner.hcEvents = {};
}
const events = owner.hcEvents;
// Allow click events added to points, otherwise they will be prevented by
// the TouchPointer.pinch function after a pinch zoom operation (#7091).
if ((highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_default()).Point && // Without H a dependency loop occurs
el instanceof (highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_default()).Point &&
el.series &&
el.series.chart) {
el.series.chart.runTrackerClick = true;
}
// Handle DOM events
// If the browser supports passive events, add it to improve performance
// on touch events (#11353).
const addEventListener = el.addEventListener;
if (addEventListener) {
addEventListener.call(el, type, fn, (highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_default()).supportsPassiveEvents ? {
passive: options.passive === void 0 ?
type.indexOf('touch') !== -1 : options.passive,
capture: false
} : false);
}
if (!events[type]) {
events[type] = [];
}
const eventObject = {
fn,
order: typeof options.order === 'number' ? options.order : Infinity
};
events[type].push(eventObject);
// Order the calls
events[type].sort((a, b) => a.order - b.order);
// Return a function that can be called to remove this event.
return function () {
removeEvent(el, type, fn);
};
}
/**
* Non-recursive method to find the lowest member of an array. `Math.min` raises
* a maximum call stack size exceeded error in Chrome when trying to apply more
* than 150.000 points. This method is slightly slower, but safe.
*
* @function Highcharts.arrayMin
*
* @param {Array<*>} data
* An array of numbers.
*
* @return {number}
* The lowest number.
*/
function arrayMin(data) {
let i = data.length, min = data[0];
while (i--) {
if (data[i] < min) {
min = data[i];
}
}
return min;
}
/**
* Non-recursive method to find the lowest member of an array. `Math.max` raises
* a maximum call stack size exceeded error in Chrome when trying to apply more
* than 150.000 points. This method is slightly slower, but safe.
*
* @function Highcharts.arrayMax
*
* @param {Array<*>} data
* An array of numbers.
*
* @return {number}
* The highest number.
*/
function arrayMax(data) {
let i = data.length, max = data[0];
while (i--) {
if (data[i] > max) {
max = data[i];
}
}
return max;
}
/**
* Set or get an attribute or an object of attributes.
*
* To use as a setter, pass a key and a value, or let the second argument be a
* collection of keys and values. When using a collection, passing a value of
* `null` or `undefined` will remove the attribute.
*
* To use as a getter, pass only a string as the second argument.
*
* @function Highcharts.attr
*
* @param {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement} elem
* The DOM element to receive the attribute(s).
*
* @param {string|Highcharts.HTMLAttributes|Highcharts.SVGAttributes} [keyOrAttribs]
* The property or an object of key-value pairs.
*
* @param {number|string} [value]
* The value if a single property is set.
*
* @return {string|null|undefined}
* When used as a getter, return the value.
*/
function attr(elem, keyOrAttribs, value) {
const isGetter = isString(keyOrAttribs) && !defined(value);
let ret;
const attrSingle = (value, key) => {
// Set the value
if (defined(value)) {
elem.setAttribute(key, value);
// Get the value
}
else if (isGetter) {
ret = elem.getAttribute(key);
// IE7 and below cannot get class through getAttribute (#7850)
if (!ret && key === 'class') {
ret = elem.getAttribute(key + 'Name');
}
// Remove the value
}
else {
elem.removeAttribute(key);
}
};
// If keyOrAttribs is a string
if (isString(keyOrAttribs)) {
attrSingle(value, keyOrAttribs);
// Else if keyOrAttribs is defined, it is a hash of key/value pairs
}
else {
objectEach(keyOrAttribs, attrSingle);
}
return ret;
}
/**
* Constrain a value to within a lower and upper threshold.
*
* @internal
* @param {number} value The initial value
* @param {number} min The lower threshold
* @param {number} max The upper threshold
* @return {number} Returns a number value within min and max.
*/
function clamp(value, min, max) {
return value > min ? value < max ? value : max : min;
}
/**
* Fix JS round off float errors.
*
* @function Highcharts.correctFloat
*
* @param {number} num
* A float number to fix.
*
* @param {number} [prec=14]
* The precision.
*
* @return {number}
* The corrected float number.
*/
function correctFloat(num, prec) {
// When the number is higher than 1e14 use the number (#16275)
return num > 1e14 ? num : parseFloat(num.toPrecision(prec || 14));
}
/**
* Utility function to create an HTML element with attributes and styles.
*
* @function Highcharts.createElement
*
* @param {string} tag
* The HTML tag.
*
* @param {Highcharts.HTMLAttributes} [attribs]
* Attributes as an object of key-value pairs.
*
* @param {Highcharts.CSSObject} [styles]
* Styles as an object of key-value pairs.
*
* @param {Highcharts.HTMLDOMElement} [parent]
* The parent HTML object.
*
* @param {boolean} [nopad=false]
* If true, remove all padding, border and margin.
*
* @return {Highcharts.HTMLDOMElement}
* The created DOM element.
*/
function createElement(tag, attribs, styles, parent, nopad) {
const el = doc.createElement(tag);
if (attribs) {
extend(el, attribs);
}
if (nopad) {
css(el, { padding: '0', border: 'none', margin: '0' });
}
if (styles) {
css(el, styles);
}
if (parent) {
parent.appendChild(el);
}
return el;
}
/**
* Utility for crisping a line position to the nearest full pixel depending on
* the line width.
*
* @internal
* @param {number} value The raw pixel position
* @param {number} lineWidth The line width
* @param {boolean} [inverted] Whether the containing group is inverted.
* Crisping round numbers on the y-scale need to go
* to the other side because the coordinate system
* is flipped (scaleY is -1)
* @return {number} The pixel position to use for a crisp display
*/
function crisp(value, lineWidth = 0, inverted) {
const mod = lineWidth % 2 / 2, inverter = inverted ? -1 : 1;
return (Math.round(value * inverter - mod) + mod) * inverter;
}
/**
* Set CSS on a given element.
*
* @function Highcharts.css
*
* @param {Highcharts.HTMLDOMElement|Highcharts.SVGDOMElement} el
* An HTML DOM element.
*
* @param {Highcharts.CSSObject} styles
* Style object with camel case property names.
*
* @return {void}
*/
function css(el, styles) {
extend(el.style, styles);
}
/**
* Check if an object is null or undefined.
*
* @function Highcharts.defined
*
* @param {*} obj
* The object to check.
*
* @return {boolean}
* False if the object is null or undefined, otherwise true.
*/
function defined(obj) {
return typeof obj !== 'undefined' && obj !== null;
}
/**
* Utility method that destroys any SVGElement instances that are properties on
* the given object. It loops all properties and invokes destroy if there is a
* destroy method. The property is then delete.
*
* @function Highcharts.destroyObjectProperties
*
* @param {*} obj
* The object to destroy properties on.
*
* @param {*} [except]
* Exception, do not destroy this property, only delete it.
*/
function destroyObjectProperties(obj, except, destructablesOnly) {
objectEach(obj, function (val, n) {
// If the object is non-null and destroy is defined
if (val !== except && val?.destroy) {
// Invoke the destroy
val.destroy();
}
// Delete the property from the object
if (val?.destroy || !destructablesOnly) {
delete obj[n];
}
});
}
/**
* Discard a HTML element
*
* @function Highcharts.discardElement
*
* @param {Highcharts.HTMLDOMElement} element
* The HTML node to discard.
*/
function discardElement(element) {
element?.parentElement?.removeChild(element);
}
// eslint-disable-next-line valid-jsdoc
/**
* Return the deep difference between two objects. It can either return the new
* properties, or optionally return the old values of new properties.
* @internal
*/
function diffObjects(newer, older, keepOlder, collectionsWithUpdate) {
const ret = {};
/**
* Recurse over a set of options and its current values, and store the
* current values in the ret object.
*/
function diff(newer, older, ret, depth) {
const keeper = keepOlder ? older : newer;
objectEach(newer, function (newerVal, key) {
if (!depth &&
collectionsWithUpdate &&
collectionsWithUpdate.indexOf(key) > -1 &&
older[key]) {
newerVal = splat(newerVal);
ret[key] = [];
// Iterate over collections like series, xAxis or yAxis and map
// the items by index.
for (let i = 0; i < Math.max(newerVal.length, older[key].length); i++) {
// Item exists in current data (#6347)
if (older[key][i]) {
// If the item is missing from the new data, we need to
// save the whole config structure. Like when
// responsively updating from a dual axis layout to a
// single axis and back (#13544).
if (newerVal[i] === void 0) {
ret[key][i] = older[key][i];
// Otherwise, proceed
}
else {
ret[key][i] = {};
diff(newerVal[i], older[key][i], ret[key][i], depth + 1);
}
}
}
}
else if (isObject(newerVal, true) &&
!newerVal.nodeType // #10044
) {
ret[key] = isArray(newerVal) ? [] : {};
diff(newerVal, older[key] || {}, ret[key], depth + 1);
// Delete empty nested objects
if (Object.keys(ret[key]).length === 0 &&
// Except colorAxis which is a special case where the empty
// object means it is enabled. Which is unfortunate and we
// should try to find a better way.
!(key === 'colorAxis' && depth === 0)) {
delete ret[key];
}
}
else if (newer[key] !== older[key] ||
// If the newer key is explicitly undefined, keep it (#10525)
(key in newer && !(key in older))) {
if (key !== '__proto__' && key !== 'constructor') {
ret[key] = keeper[key];
}
}
});
}
diff(newer, older, ret, 0);
return ret;
}
/**
* Remove the last occurrence of an item from an array.
*
* @function Highcharts.erase
*
* @param {Array<*>} arr
* The array.
*
* @param {*} item
* The item to remove.
*
* @return {void}
*/
function erase(arr, item) {
let i = arr.length;
while (i--) {
if (arr[i] === item) {
arr.splice(i, 1);
break;
}
}
}
/**
* Utility function to extend an object with the members of another.
*
* @function Highcharts.extend<T>
*
* @param {T|undefined} a
* The object to be extended.
*
* @param {Partial<T>} b
* The object to add to the first one.
*
* @return {T}
* Object a, the original object.
*/
function extend(a, b) {
let n;
if (!a) {
a = {};
}
for (n in b) { // eslint-disable-line guard-for-in
a[n] = b[n];
}
return a;
}
// eslint-disable-next-line valid-jsdoc
/**
* Extend a prototyped class by new members.
*
* @deprecated
* @function Highcharts.extendClass<T>
*
* @param {Highcharts.Class<T>} parent
* The parent prototype to inherit.
*
* @param {Highcharts.Dictionary<*>} members
* A collection of prototype members to add or override compared to the
* parent prototype.
*
* @return {Highcharts.Class<T>}
* A new prototype.
*/
function extendClass(parent, members) {
const obj = (function () { });
obj.prototype = new parent(); // eslint-disable-line new-cap
extend(obj.prototype, members);
return obj;
}
/**
* Fire an event that was registered with {@link Highcharts#addEvent}.
*
* @function Highcharts.fireEvent<T>
*
* @param {T} el
* The object to fire the event on. It can be a {@link HTMLDOMElement},
* an {@link SVGElement} or any other object.
*
* @param {string} type
* The type of event.
*
* @param {Highcharts.Dictionary<*>|Event} [eventArguments]
* Custom event arguments that are passed on as an argument to the event
* handler.
*
* @param {Highcharts.EventCallbackFunction<T>|Function} [defaultFunction]
* The default function to execute if the other listeners haven't
* returned false.
*
* @return {void}
*/
function fireEvent(el, type, eventArguments, defaultFunction) {
eventArguments = eventArguments || {};
if (doc?.createEvent &&
(el.dispatchEvent ||
(el.fireEvent &&
// Enable firing events on Highcharts instance.
el !== (highcharts_commonjs_highcharts_commonjs2_highcharts_root_Highcharts_default())))) {
const e = doc.createEvent('Events');
e.initEvent(type, true, true);
eventArguments = extend(e, eventArguments);
if (el.dispatchEvent) {
el.dispatchEvent(eventArguments);
}
else {
el.fireEvent(type, eventArguments);
}
}
else if (el.hcEvents) {
if (!eventArguments.target) {
// We're running a custom event
extend(eventArguments, {
// Attach a simple preventDefault function to skip
// default handler if called. The built-in
// defaultPrevented property is not overwritable (#5112)
preventDefault: function () {
eventArguments.defaultPrevented = true;
},
// Setting target to native events fails with clicking
// the zoom-out button in Chrome.
target: el,
// If the type is not set, we're running a custom event
// (#2297). If it is set, we're running a browser event.
type: type
});
}
const events = [];
let object = el;
let multilevel = false;
// Recurse up the inheritance chain and collect hcEvents set as own
// objects on the prototypes.
while (object.hcEvents) {
if (Object.hasOwnProperty.call(object, 'hcEvents') &&
object.hcEvents[type]) {
if (events.length) {
multilevel = true;
}
events.unshift.apply(events, object.hcEvents[type]);
}
object = Object.getPrototypeOf(object);
}
// For performance reasons, only sort the event handlers in case we are
// dealing with multiple levels in the prototype chain. Otherwise, the
// events are already sorted in the addEvent function.
if (multilevel) {
// Order the calls
events.sort((a, b) => a.order - b.order);
}
// Call the collected event handlers
events.forEach((obj) => {
// If the event handler returns false, prevent the default handler
// from executing
if (obj.fn.call(el, eventArguments, el) === false) {
eventArguments.preventDefault();
}
});
}
// Run the default if not prevented
if (defaultFunction && !eventArguments.defaultPrevented) {
defaultFunction.call(el, eventArguments);
}
}
/**
* Convenience function to get the align factor, used several places for
* computing positions
* @internal
*/
const getAlignFactor = (align = '') => ({
center: 0.5,
right: 1,
middle: 0.5,
bottom: 1
}[align] || 0);
/**
* Find the closest distance between two values of a two-dimensional array
* @internal
* @function Highcharts.getClosestDistance
*
* @param {Array<Array<number>>} arrays
* An array of arrays of numbers
*
* @return {number | undefined}
* The closest distance between values
*/
function getClosestDistance(arrays, onError) {
const allowNegative = !onError;
let closest, loopLength, distance, i;
arrays.forEach((xData) => {
if (xData.length > 1) {
loopLength = xData.length - 1;
for (i = loopLength; i > 0; i--) {
distance = xData[i] - xData[i - 1];
if (distance < 0 && !allowNegative) {
onError?.();
// Only one call
onError = void 0;
}
else if (distance && (typeof closest === 'undefined' || distance < closest)) {
closest = distance;
}
}
}
});
return closest;
}
/**
* Get the magnitude of a number.
*
* @function Highcharts.getMagnitude
*
* @param {number} num
* The number.
*
* @return {number}
* The magnitude, where 1-9 are magnitude 1, 10-99 magnitude 2 etc.
*/
function getMagnitude(num) {
return Math.pow(10, Math.floor(Math.log(num) / Math.LN10));
}
/**
* Returns the value of a property path on a given object.
*
* @internal
* @function getNestedProperty
*
* @param {string} path
* Path to the property, for example `custom.myValue`.
*
* @param {unknown} parent
* Instance containing the property on the specific path.
*
* @return {unknown}
* The unknown property value.
*/
function getNestedProperty(path, parent) {
const pathElements = path.split('.');
while (pathElements.length && defined(parent)) {
const pathElement = pathElements.shift();
// Filter on the key
if (typeof pathElement === 'undefined' ||
pathElement === '__proto__') {
return; // Undefined
}
if (pathElement === 'this') {
let thisProp;
if (isObject(parent)) {
thisProp = parent['@this'];
}
return thisProp ?? parent;
}
const child = parent[pathElement.replace(/[\\'"]/g, '')];
// Filter on the child
if (!defined(child) ||
typeof child === 'function' ||
typeof child.nodeType === 'number' ||
child === win) {
return; // Undefined
}
// Else, proceed
parent = child;
}
return parent;
}
/**
* Get the computed CSS value for given element and property, only for numerical
* properties. For width and height, the dimension of the inner box (excluding
* padding) is returned. Used for fitting the chart within the container.
*
* @function Highcharts.getStyle
*
* @param {Highcharts.HTMLDOMElement} el
* An HTML element.
*
* @param {string} prop
* The property name.
*
* @param {boolean} [toInt=true]
* Parse to integer.
*
* @return {number|string|undefined}
* The style value.
*/
function getStyle(el, prop, toInt) {
let style;
// For width and height, return the actual inner pixel size (#4913)
if (prop === 'width') {
let offsetWidth = Math.min(el.offsetWidth, el.scrollWidth);
// In flex boxes, we need to use getBoundingClientRect and floor it,
// because scrollWidth doesn't support subpixel precision (#6427) ...
const boundingClientRectWidth = el.getBoundingClientRect?.().width;
// ...unless if the containing div or its parents are transform-scaled
// down, in which case the boundingClientRect can't be used as it is
// also scaled down (#9871, #10498).
if (boundingClientRectWidth < offsetWidth &&
boundingClientRectWidth >= offsetWidth - 1) {
offsetWidth = Math.floor(boundingClientRectWidth);
}
return Math.max(0, // #8377
(offsetWidth -
(getStyle(el, 'padding-left', true) || 0) -
(getStyle(el, 'padding-right', true) || 0)));
}
if (prop === 'height') {
return Math.max(0, // #8377
(Math.min(el.offsetHeight, el.scrollHeight) -
(getStyle(el, 'padding-top', true) || 0) -
(getStyle(el, 'padding-bottom', true) || 0)));
}
// Otherwise, get the computed style
const css = win.getComputedStyle(el, void 0); // eslint-disable-line no-undefined
if (css) {
style = css.getPropertyValue(prop);
if (pick(toInt, prop !== 'opacity')) {
style = pInt(style);
}
}
return style;
}
/**
* Return the value of the first element in the array that satisfies the
* provided testing function.
*
* @function Highcharts.find<T>
*
* @param {Array<T>} arr
* The array to test.
*
* @param {Function} callback
* The callback function. The function receives the item as the first
* argument. Return `true` if this item satisfies the condition.
*
* @return {T|undefined}
* The value of the element.
*/
const find = Array.prototype.find ?
function (arr, callback) {
return arr.find(callback);
} :
// Legacy implementation. PhantomJS, IE <= 11 etc. #7223.
function (arr, callback) {
let i;
const length = arr.length;
for (i = 0; i < length; i++) {
if (callback(arr[i], i)) { // eslint-disable-line node/callback-return
return arr[i];
}
}
};
/**
* Internal clear timeout. The function checks that the `id` was not removed
* (e.g. by `chart.destroy()`). For the details see
* [issue #7901](https://github.com/highcharts/highcharts/issues/7901).
*
* @internal
*
* @function Highcharts.clearTimeout
*
* @param {number|undefined} id
* Id of a timeout.
*/
function internalClearTimeout(id) {
if (defined(id)) {
clearTimeout(id);
}
}
/**
* Utility function to check if an Object is a HTML Element.
*
* @function Highcharts.isDOMElement
*
* @param {*} obj
* The item to check.
*
* @return {boolean}
* True if the argument is a HTML Element.
*/
function isDOMElement(obj) {
return isObject(obj) && typeof obj.nodeType === 'number';
}
/**
* Utility function to check if an Object is a class.
*
* @function Highcharts.isClass
*
* @param {object|undefined} obj
* The item to check.
*
* @return {boolean}
* True if the argument is a class.
*/
function isClass(obj) {
const c = obj?.constructor;
return !!(isObject(obj, true) &&
!isDOMElement(obj) &&
(c?.name && c.name !== 'Object'));
}
/**
* Utility function to check if an item is a number and it is finite (not NaN,
* Infinity or -Infinity).
*
* @function Highcharts.isNumber
*
* @param {*} n
* The item to check.
*
* @return {boolean}
* True if the item is a finite number
*/
function isNumber(n) {
return typeof n === 'number' && !isNaN(n) && n < Infinity && n > -Infinity;
}
/**
* Utility function to check for string type.
*
* @function Highcharts.isString
*
* @param {*} s
* The item to check.
*
* @return {boolean}
* True if the argument is a string.
*/
function isString(s) {
return typeof s === 'string';
}
/**
* Utility function to check if an item is an array.
*
* @function Highcharts.isArray
*
* @param {*} obj
* The item to check.
*
* @return {boolean}
* True if the argument is an array.
*/
function isArray(obj) {
const str = Object.prototype.toString.call(obj);
return str === '[object Array]' || str === '[object Array Iterator]';
}
/**
* Utility function to check if object is a function.
*
* @function Highcharts.isFunction
*
* @param {*} obj
* The item to check.
*
* @return {boolean}
* True if the argument is a function.
*/
function isFunction(obj) {
return typeof obj === 'function';
}
/**
* Utility function to check if an item is of type object.
*
* @function Highcharts.isObject
*
* @param {*} obj
* The item to check.
*
* @param {boolean} [strict=false]
* Also checks that the object is not an array.
*
* @return {boolean}
* True if the argument is an object.
*/
function isObject(obj, strict) {
return (!!obj &&
typeof obj === 'object' &&
(!strict || !isArray(obj))); // eslint-disable-line @typescript-eslint/no-explicit-any
}
/**
* Utility function to deep merge two or more objects and return a third object.
* If the first argument is true, the contents of the second object is copied
* into the first object. The merge function can also be used with a single
* object argument to create a deep copy of an object.
*
* @function Highcharts.merge<T>
*
* @param {true | T} extendOrSource
* Whether to extend the left-side object,
* or the first object to merge as a deep copy.
*
* @param {...Array<object|undefined>} [sources]
* Object(s) to merge into the previous one.
*
* @return {T}
* The merged object. If the first argument is true, the return is the
* same as the second argument.
*/
function merge(extendOrSource, ...sources) {
let i, args = [extendOrSource, ...sources], ret = {};
const doCopy = function (copy, original) {
// An object is replacing a primitive
if (typeof copy !== 'object') {
copy = {};
}
objectEach(original, function (value, key) {
// Prototype pollution (#14883)
if (key === '__proto__' || key === 'constructor') {
return;
}
// Copy the contents of objects, but not arrays or DOM nodes
if (isObject(value, true) &&
!isClass(value) &&
!isDOMElement(value)) {
copy[key] = doCopy(copy[key] || {}, value);
// Primitives and arrays are copied over directly
}
else {
copy[key] = original[key];
}
});
return copy;
};
// If first argument is true, copy into the existing object. Used in
// setOptions.
if (extendOrSource === true) {
ret = args[1];
args = Array.prototype.slice.call(args, 2);
}
// For each argument, extend the return
const len = args.length;
for (i = 0; i < len; i++) {
ret = doCopy(ret, args[i]);
}
return ret;
}
/**
* Take an interval and normalize it to multiples of round numbers.
*
* @deprecated
* @function Highcharts.normalizeTickInterval
*
* @param {number} interval
* The raw, un-rounded interval.
*
* @param {Array<*>} [multiples]
* Allowed multiples.
*
* @param {number} [magnitude]
* The magnitude of the number.
*
* @param {boolean} [allowDecimals]
* Whether to allow decimals.
*
* @param {boolean} [hasTickAmount]
* If it has tickAmount, avoid landing on tick intervals lower than
* original.
*
* @return {number}
* The normalized interval.
*
* @todo
* Move this function to the Axis prototype. It is here only for historical
* reasons.
*/
function normalizeTickInterval(interval, multiples, magnitude, allowDecimals, hasTickAmount) {
let i, retInterval = interval;
// Round to a tenfold of 1, 2, 2.5 or 5
magnitude = pick(magnitude, getMagnitude(interval));
const normalized = interval / magnitude;
// Multiples for a linear scale
if (!multiples) {
multiples = hasTickAmount ?
// Finer grained ticks when the tick amount is hard set, including
// when alignTicks is true on multiple axes (#4580).
[1, 1.2, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10] :
// Else, let ticks fall on rounder numbers
[1, 2, 2.5, 5, 10];
// The allowDecimals option
if (allowDecimals === false) {
if (magnitude === 1) {
multiples = multiples.filter(function (num) {
return num % 1 === 0;
});
}
else if (magnitude <= 0.1) {
multiples = [1 / magnitude];
}
}
}
// Normalize the interval to the nearest multiple
for (i = 0; i < multiples.length; i++) {
retInterval = multiples[i];
// Only allow tick amounts smaller than natural
if ((hasTickAmount &&
retInterval * magnitude >= interval) ||
(!hasTickAmount &&
(normalized <=
(multiples[i] +
(multiples[i + 1] || multiples[i])) / 2))) {
break;
}
}
// Multiply back to the correct magnitude. Correct floats to appropriate
// precision (#6085).
retInterval = correctFloat(retInterval * magnitude, -Math.round(Math.log(0.001) / Math.LN10));
return retInterval;
}
/**
* Iterate over object key pairs in an object.
*
* @function Highcharts.objectEach<T>
*
* @param {*} obj
* The object to iterate over.
*
* @param {Highcharts.ObjectEachCallbackFunction<T>} fn
* The iterator callback. It passes three arguments:
* * value - The property value.
* * key - The property key.
* * obj - The object that objectEach is being applied to.
*
* @param {T} [ctx]
* The context.
*/
function objectEach(obj, fn, ctx) {
for (const key in obj) {
if (Object.hasOwnProperty.call(obj, key)) {
fn.call(ctx || obj[key], obj[key], key, obj);
}
}
}
/**
* Get the element's offset position, corrected for `overflow: auto`.
*
* @function Highcharts.offset
*
* @param {global.Element} el
* The DOM element.
*
* @return {Highcharts.OffsetObject}
* An object containing `left` and `top` properties for the position in
* the page.
*/
function offset(el) {
const docElem = doc.documentElement, box = (el.parentElement || el.parentNode) ?
el.getBoundingClientRect() :
{ top: 0, left: 0, width: 0, height: 0 };
return {
top: box.top + (win.pageYOffset || docElem.scrollTop) -
(docElem.clientTop || 0),
left: box.left + (win.pageXOffset || docElem.scrollLeft) -
(docElem.clientLeft || 0),
width: box.width,
height: box.height
};
}
/**
* Left-pad a string to a given length by adding a character repetitively.
*
* @function Highcharts.pad
*
* @param {number} number
* The input string or number.
*
* @param {number} [length]
* The desired string length.
*
* @param {string} [padder=0]
* The character to pad with.
*
* @return {string}
* The padded string.
*/
function pad(number, length, padder) {
return new Array((length || 2) +
1 -
String(number)
.replace('-', '')
.length).join(padder || '0') + number;
}
/* eslint-disable jsdoc/check-param-names */
/**
* Return the first value that is not null or undefined.
*
* @function Highcharts.pick<T>
*
* @param {...Array<T|null|undefined>} items
* Variable number of arguments to inspect.
*
* @return {T}
* The value of the first arg