@nova-ui/charts
Version:
Nova Charts is a library created to provide potential consumers with solutions for various data visualizations that conform with the Nova Design Language. It's designed to solve common patterns identified by UX designers, but also be very flexible so that
232 lines • 32.2 kB
JavaScript
// © 2022 SolarWinds Worldwide, LLC. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
import identity from "lodash/identity";
import isEmpty from "lodash/isEmpty";
import isUndefined from "lodash/isUndefined";
import { invert } from "./scales/helpers/invert";
export class UtilityService {
static getValueAccessor(accessor, dataPoint) {
const value = accessor(dataPoint, 0);
if (typeof value === "number" || typeof value === "string") {
return accessor;
}
if (value.valueOf && typeof value.valueOf() === "number") {
return (d, i) => accessor(d, i).valueOf();
}
throw new Error("Value in the data series does not return numeric valueOf().");
}
static getClosestIndex(haystack, accessor, needle) {
if (haystack.length === 1) {
return 0;
}
if (haystack.length === 0) {
return;
}
const valueAccessor = UtilityService.getValueAccessor(accessor, haystack[0]);
if (typeof needle === "string") {
return haystack.findIndex((straw) => valueAccessor(straw, 0) === needle);
}
let closestDataIndex = this.findNearestIndex(haystack, needle, accessor);
// Compensate for bisect
closestDataIndex =
closestDataIndex > 0 ? closestDataIndex - 1 : closestDataIndex;
// Ensure inbounds reference if right end of data
closestDataIndex =
closestDataIndex >= haystack.length - 1 && haystack.length !== 1
? haystack.length - 2
: closestDataIndex;
const indexIncrement = UtilityService.getCloser(valueAccessor(haystack[closestDataIndex], closestDataIndex), valueAccessor(haystack[closestDataIndex + 1], closestDataIndex + 1), needle);
return closestDataIndex + indexIncrement;
}
static getCloser(a, b, test) {
return Math.abs(test - a) <= Math.abs(test - b) ? 0 : 1;
}
/**
* Clamps given value to range
*
* @param {number} value
* @param {[number , number]} range
* @returns {number}
*/
static clampToRange(value, range) {
if (value < range[0]) {
return range[0];
}
if (value > range[1]) {
return range[1];
}
return value;
}
static uuid() {
let dt = new Date().getTime();
const uuid = "xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, (c) => {
// eslint-disable-next-line
const r = (dt + Math.random() * 16) % 16 | 0;
dt = Math.floor(dt / 16);
// eslint-disable-next-line
return (c === "x" ? r : (r & 0x3) | 0x8).toString(16);
});
return uuid;
}
/**
* CSS.escape() replacement
* @param value
* @returns {string}
*/
static cssEscape(value) {
// TODO: remove when Edge supports CSS.escape
// Courtesy of Mathias Bynens: https://github.com/mathiasbynens/CSS.escape.git
if (arguments.length === 0) {
throw new TypeError("`cssEscape` requires an argument.");
}
const sstring = String(value);
const length = sstring.length;
let index = -1;
let codeUnit;
let result = "";
const firstCodeUnit = sstring.charCodeAt(0);
while (++index < length) {
codeUnit = sstring.charCodeAt(index);
// Note: there’s no need to special-case astral symbols, surrogate
// pairs, or lone surrogates.
// If the character is NULL (U+0000), then the REPLACEMENT CHARACTER
// (U+FFFD).
if (codeUnit === 0x0000) {
result += "\uFFFD";
continue;
}
if (
// If the character is in the range [\1-\1F] (U+0001 to U+001F) or is
// U+007F, […]
(codeUnit >= 0x0001 && codeUnit <= 0x001f) ||
codeUnit === 0x007f ||
// If the character is the first character and is in the range [0-9]
// (U+0030 to U+0039), […]
(index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
// If the character is the second character and is in the range [0-9]
// (U+0030 to U+0039) and the first character is a `-` (U+002D), […]
(index === 1 &&
codeUnit >= 0x0030 &&
codeUnit <= 0x0039 &&
firstCodeUnit === 0x002d)) {
// https://drafts.csswg.org/cssom/#escape-a-character-as-code-point
result += "\\" + codeUnit.toString(16) + " ";
continue;
}
if (
// If the character is the first character and is a `-` (U+002D), and
// there is no second character, […]
index === 0 &&
length === 1 &&
codeUnit === 0x002d) {
result += "\\" + sstring.charAt(index);
continue;
}
// If the character is not handled by one of the above rules and is
// greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or
// is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to
// U+005A), or [a-z] (U+0061 to U+007A), […]
if (codeUnit >= 0x0080 ||
codeUnit === 0x002d ||
codeUnit === 0x005f ||
(codeUnit >= 0x0030 && codeUnit <= 0x0039) ||
(codeUnit >= 0x0041 && codeUnit <= 0x005a) ||
(codeUnit >= 0x0061 && codeUnit <= 0x007a)) {
// the character itself
result += sstring.charAt(index);
continue;
}
// Otherwise, the escaped character.
// https://drafts.csswg.org/cssom/#escape-a-character
result += "\\" + sstring.charAt(index);
}
return result;
}
/**
* This method performs a binary search to find an index in the `haystack` that is the closest representation of given `needle`.
*
* @param haystack
* @param needle
* @param selector this function is used to process the `haystack` elements
*/
static findNearestIndex(haystack, needle, selector = identity) {
let low = 0, high = haystack == null ? low : haystack.length;
while (low < high) {
// eslint-disable-next-line no-bitwise
const mid = (low + high) >>> 1, computed = selector(haystack[mid], mid);
if (computed !== null && computed < needle) {
low = mid + 1;
}
else {
high = mid;
}
}
return Math.round(low);
}
/**
* Gets the 'x' and 'y' scale values based on the specified scales and raw x-y coordinates
*
* @param xScales
* @param yScales
* @param xCoordinate
* @param yCoordinate
*/
static getXYValues(xScales, yScales, xCoordinate, yCoordinate) {
const xValue = UtilityService.getScaleValues(xScales, xCoordinate);
const yValue = UtilityService.getScaleValues(yScales, yCoordinate);
const values = {};
if (!isEmpty(xValue)) {
values.x = xValue;
}
if (!isEmpty(yValue)) {
values.y = yValue;
}
return values;
}
/**
* Gets the scale value based on the specified scales and raw coordinate
*
* @param scales
* @param coordinate
*/
static getScaleValues(scales, coordinate) {
function callbackFn(result, next) {
const inverted = invert(next, coordinate);
if (isUndefined(inverted)) {
return result;
}
result[next.id] = inverted;
return result;
}
return scales.reduce(callbackFn, {});
}
/**
* get values for interaction
* @param valueMap map of values by scaleId
* @param scaleId preferred scaleId
* @returns value from scaleId or first availabel scale
*/
static getInteractionValues(valueMap, scaleId) {
return valueMap
? valueMap[scaleId] ?? Object.values(valueMap)[0]
: null;
}
}
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© 2022 SolarWinds Worldwide, LLC. All rights reserved.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n//  of this software and associated documentation files (the \"Software\"), to\n//  deal in the Software without restriction, including without limitation the\n//  rights to use, copy, modify, merge, publish, distribute, sublicense, and/or\n//  sell copies of the Software, and to permit persons to whom the Software is\n//  furnished to do so, subject to the following conditions:\n//\n// The above copyright notice and this permission notice shall be included in\n//  all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN\n//  THE SOFTWARE.\n\nimport identity from \"lodash/identity\";\nimport isEmpty from \"lodash/isEmpty\";\nimport isUndefined from \"lodash/isUndefined\";\n\nimport { IInteractionValues } from \"../plugins/types\";\nimport { invert } from \"./scales/helpers/invert\";\nimport { IScale } from \"./scales/types\";\n\nexport class UtilityService {\n    private static getValueAccessor(\n        accessor: (d: any, i: number) => any,\n        dataPoint: any\n    ) {\n        const value = accessor(dataPoint, 0);\n        if (typeof value === \"number\" || typeof value === \"string\") {\n            return accessor;\n        }\n        if (value.valueOf && typeof value.valueOf() === \"number\") {\n            return (d: any, i: number) => accessor(d, i).valueOf();\n        }\n\n        throw new Error(\n            \"Value in the data series does not return numeric valueOf().\"\n        );\n    }\n\n    public static getClosestIndex<T>(\n        haystack: T[],\n        accessor: (d: T, i: number) => any,\n        needle: any\n    ): number | undefined {\n        if (haystack.length === 1) {\n            return 0;\n        }\n        if (haystack.length === 0) {\n            return;\n        }\n\n        const valueAccessor = UtilityService.getValueAccessor(\n            accessor,\n            haystack[0]\n        );\n        if (typeof needle === \"string\") {\n            return haystack.findIndex(\n                (straw) => valueAccessor(straw, 0) === needle\n            );\n        }\n\n        let closestDataIndex = this.findNearestIndex(\n            haystack,\n            needle,\n            accessor\n        );\n\n        // Compensate for bisect\n        closestDataIndex =\n            closestDataIndex > 0 ? closestDataIndex - 1 : closestDataIndex;\n        // Ensure inbounds reference if right end of data\n        closestDataIndex =\n            closestDataIndex >= haystack.length - 1 && haystack.length !== 1\n                ? haystack.length - 2\n                : closestDataIndex;\n        const indexIncrement = UtilityService.getCloser(\n            valueAccessor(haystack[closestDataIndex], closestDataIndex),\n            valueAccessor(haystack[closestDataIndex + 1], closestDataIndex + 1),\n            needle\n        );\n\n        return closestDataIndex + indexIncrement;\n    }\n\n    private static getCloser(a: number, b: number, test: number): number {\n        return Math.abs(test - a) <= Math.abs(test - b) ? 0 : 1;\n    }\n\n    /**\n     * Clamps given value to range\n     *\n     * @param {number} value\n     * @param {[number , number]} range\n     * @returns {number}\n     */\n    public static clampToRange(value: number, range: [number, number]): number {\n        if (value < range[0]) {\n            return range[0];\n        }\n\n        if (value > range[1]) {\n            return range[1];\n        }\n\n        return value;\n    }\n\n    public static uuid(): string {\n        let dt = new Date().getTime();\n        const uuid = \"xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx\".replace(\n            /[xy]/g,\n            (c) => {\n                // eslint-disable-next-line\n                const r = (dt + Math.random() * 16) % 16 | 0;\n                dt = Math.floor(dt / 16);\n                // eslint-disable-next-line\n                return (c === \"x\" ? r : (r & 0x3) | 0x8).toString(16);\n            }\n        );\n        return uuid;\n    }\n\n    /**\n     *  CSS.escape() replacement\n     * @param value\n     * @returns {string}\n     */\n    public static cssEscape(value: any): string {\n        // TODO: remove when Edge supports CSS.escape\n        // Courtesy of Mathias Bynens: https://github.com/mathiasbynens/CSS.escape.git\n        if (arguments.length === 0) {\n            throw new TypeError(\"`cssEscape` requires an argument.\");\n        }\n        const sstring = String(value);\n        const length = sstring.length;\n        let index = -1;\n        let codeUnit;\n        let result = \"\";\n        const firstCodeUnit = sstring.charCodeAt(0);\n        while (++index < length) {\n            codeUnit = sstring.charCodeAt(index);\n            // Note: there’s no need to special-case astral symbols, surrogate\n            // pairs, or lone surrogates.\n\n            // If the character is NULL (U+0000), then the REPLACEMENT CHARACTER\n            // (U+FFFD).\n            if (codeUnit === 0x0000) {\n                result += \"\\uFFFD\";\n                continue;\n            }\n\n            if (\n                // If the character is in the range [\\1-\\1F] (U+0001 to U+001F) or is\n                // U+007F, […]\n                (codeUnit >= 0x0001 && codeUnit <= 0x001f) ||\n                codeUnit === 0x007f ||\n                // If the character is the first character and is in the range [0-9]\n                // (U+0030 to U+0039), […]\n                (index === 0 && codeUnit >= 0x0030 && codeUnit <= 0x0039) ||\n                // If the character is the second character and is in the range [0-9]\n                // (U+0030 to U+0039) and the first character is a `-` (U+002D), […]\n                (index === 1 &&\n                    codeUnit >= 0x0030 &&\n                    codeUnit <= 0x0039 &&\n                    firstCodeUnit === 0x002d)\n            ) {\n                // https://drafts.csswg.org/cssom/#escape-a-character-as-code-point\n                result += \"\\\\\" + codeUnit.toString(16) + \" \";\n                continue;\n            }\n\n            if (\n                // If the character is the first character and is a `-` (U+002D), and\n                // there is no second character, […]\n                index === 0 &&\n                length === 1 &&\n                codeUnit === 0x002d\n            ) {\n                result += \"\\\\\" + sstring.charAt(index);\n                continue;\n            }\n\n            // If the character is not handled by one of the above rules and is\n            // greater than or equal to U+0080, is `-` (U+002D) or `_` (U+005F), or\n            // is in one of the ranges [0-9] (U+0030 to U+0039), [A-Z] (U+0041 to\n            // U+005A), or [a-z] (U+0061 to U+007A), […]\n            if (\n                codeUnit >= 0x0080 ||\n                codeUnit === 0x002d ||\n                codeUnit === 0x005f ||\n                (codeUnit >= 0x0030 && codeUnit <= 0x0039) ||\n                (codeUnit >= 0x0041 && codeUnit <= 0x005a) ||\n                (codeUnit >= 0x0061 && codeUnit <= 0x007a)\n            ) {\n                // the character itself\n                result += sstring.charAt(index);\n                continue;\n            }\n\n            // Otherwise, the escaped character.\n            // https://drafts.csswg.org/cssom/#escape-a-character\n            result += \"\\\\\" + sstring.charAt(index);\n        }\n        return result;\n    }\n\n    /**\n     * This method performs a binary search to find an index in the `haystack` that is the closest representation of given `needle`.\n     *\n     * @param haystack\n     * @param needle\n     * @param selector this function is used to process the `haystack` elements\n     */\n    public static findNearestIndex<T>(\n        haystack: T[],\n        needle: any,\n        selector: (d: T, index: number) => any = identity\n    ): number {\n        let low = 0,\n            high = haystack == null ? low : haystack.length;\n\n        while (low < high) {\n            // eslint-disable-next-line no-bitwise\n            const mid = (low + high) >>> 1,\n                computed = selector(haystack[mid], mid);\n\n            if (computed !== null && computed < needle) {\n                low = mid + 1;\n            } else {\n                high = mid;\n            }\n        }\n\n        return Math.round(low);\n    }\n\n    /**\n     * Gets the 'x' and 'y' scale values based on the specified scales and raw x-y coordinates\n     *\n     * @param xScales\n     * @param yScales\n     * @param xCoordinate\n     * @param yCoordinate\n     */\n    public static getXYValues(\n        xScales: IScale<any>[],\n        yScales: IScale<any>[],\n        xCoordinate: number,\n        yCoordinate: number\n    ): IInteractionValues {\n        const xValue = UtilityService.getScaleValues(xScales, xCoordinate);\n        const yValue = UtilityService.getScaleValues(yScales, yCoordinate);\n\n        const values: IInteractionValues = {};\n        if (!isEmpty(xValue)) {\n            values.x = xValue;\n        }\n        if (!isEmpty(yValue)) {\n            values.y = yValue;\n        }\n        return values;\n    }\n\n    /**\n     * Gets the scale value based on the specified scales and raw coordinate\n     *\n     * @param scales\n     * @param coordinate\n     */\n    public static getScaleValues(\n        scales: IScale<any>[],\n        coordinate: number\n    ): Record<string, any> {\n        function callbackFn(result: Record<string, any>, next: IScale<any>) {\n            const inverted = invert(next, coordinate);\n            if (isUndefined(inverted)) {\n                return result;\n            }\n\n            result[next.id] = inverted;\n            return result;\n        }\n        return scales.reduce(callbackFn, {});\n    }\n\n    /**\n     * get values for interaction\n     * @param valueMap map of values by scaleId\n     * @param scaleId preferred scaleId\n     * @returns value from scaleId or first availabel scale\n     */\n    public static getInteractionValues(\n        valueMap: Record<string, any> | null | undefined,\n        scaleId: string\n    ): any {\n        return valueMap\n            ? valueMap[scaleId] ?? Object.values(valueMap)[0]\n            : null;\n    }\n}\n"]}