@ng-bootstrap/ng-bootstrap
Version:
Angular powered Bootstrap
94 lines • 11.4 kB
JavaScript
import { Observable } from 'rxjs';
export function toInteger(value) {
return parseInt(`${value}`, 10);
}
export function toString(value) {
return value !== undefined && value !== null ? `${value}` : '';
}
export function getValueInRange(value, max, min = 0) {
return Math.max(Math.min(value, max), min);
}
export function isString(value) {
return typeof value === 'string';
}
export function isNumber(value) {
return !isNaN(toInteger(value));
}
export function isInteger(value) {
return typeof value === 'number' && isFinite(value) && Math.floor(value) === value;
}
export function isDefined(value) {
return value !== undefined && value !== null;
}
export function isPromise(v) {
return v && v.then;
}
export function padNumber(value) {
if (isNumber(value)) {
return `0${value}`.slice(-2);
}
else {
return '';
}
}
export function regExpEscape(text) {
return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, '\\$&');
}
export function hasClassName(element, className) {
return (element && element.className && element.className.split && element.className.split(/\s+/).indexOf(className) >= 0);
}
export function closest(element, selector) {
if (!selector) {
return null;
}
/*
* In certain browsers (e.g. Edge 44.18362.449.0) HTMLDocument does
* not support `Element.prototype.closest`. To emulate the correct behaviour
* we return null when the method is missing.
*
* Note that in evergreen browsers `closest(document.documentElement, 'html')`
* will return the document element whilst in Edge null will be returned. This
* compromise was deemed good enough.
*/
if (typeof element.closest === 'undefined') {
return null;
}
return element.closest(selector);
}
/**
* Force a browser reflow
* @param element element where to apply the reflow
*/
export function reflow(element) {
return (element || document.body).getBoundingClientRect();
}
/**
* Creates an observable where all callbacks are executed inside a given zone
*
* @param zone
*/
export function runInZone(zone) {
return (source) => {
return new Observable((observer) => {
const next = (value) => zone.run(() => observer.next(value));
const error = (e) => zone.run(() => observer.error(e));
const complete = () => zone.run(() => observer.complete());
return source.subscribe({ next, error, complete });
});
};
}
export function removeAccents(str) {
return str.normalize('NFD').replace(/[\u0300-\u036f]/g, '');
}
/**
* Returns the active element in the given root.
* If the active element is inside a shadow root, it is searched recursively.
*/
export function getActiveElement(root = document) {
const activeEl = root?.activeElement;
if (!activeEl) {
return null;
}
return activeEl.shadowRoot ? getActiveElement(activeEl.shadowRoot) : activeEl;
}
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To emulate the correct behaviour\n\t * we return null when the method is missing.\n\t *\n\t * Note that in evergreen browsers `closest(document.documentElement, 'html')`\n\t * will return the document element whilst in Edge null will be returned. This\n\t * compromise was deemed good enough.\n\t */\n\tif (typeof element.closest === 'undefined') {\n\t\treturn null;\n\t}\n\n\treturn element.closest(selector);\n}\n\n/**\n * Force a browser reflow\n * @param element element where to apply the reflow\n */\nexport function reflow(element: HTMLElement) {\n\treturn (element || document.body).getBoundingClientRect();\n}\n\n/**\n * Creates an observable where all callbacks are executed inside a given zone\n *\n * @param zone\n */\nexport function runInZone<T>(zone: NgZone): OperatorFunction<T, T> {\n\treturn (source) => {\n\t\treturn new Observable((observer) => {\n\t\t\tconst next = (value: T) => zone.run(() => observer.next(value));\n\t\t\tconst error = (e: any) => zone.run(() => observer.error(e));\n\t\t\tconst complete = () => zone.run(() => observer.complete());\n\t\t\treturn source.subscribe({ next, error, complete });\n\t\t});\n\t};\n}\n\nexport function removeAccents(str: string): string {\n\treturn str.normalize('NFD').replace(/[\\u0300-\\u036f]/g, '');\n}\n\n/**\n * Returns the active element in the given root.\n * If the active element is inside a shadow root, it is searched recursively.\n */\nexport function getActiveElement(root: Document | ShadowRoot = document): Element | null {\n\tconst activeEl = root?.activeElement;\n\n\tif (!activeEl) {\n\t\treturn null;\n\t}\n\n\treturn activeEl.shadowRoot ? getActiveElement(activeEl.shadowRoot) : activeEl;\n}\n"]}