mirror of
https://github.com/tenrok/OverlayScrollbars.git
synced 2026-06-07 11:42:28 +03:00
Rene Haas
74 lines
3.0 KiB
TypeScript
74 lines
3.0 KiB
TypeScript
import { isUndefined } from 'support/utils/types';
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type GetSetPropName = 'scrollLeft' | 'scrollTop' | 'value';
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function getSetProp(
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topLeft: GetSetPropName,
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fallback: number | string,
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elm: HTMLElement | HTMLInputElement | null,
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value?: number | string
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): number | string | void {
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if (isUndefined(value)) {
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return elm ? elm[topLeft] : fallback;
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}
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elm && (elm[topLeft] = value);
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}
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/**
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* Gets or sets a attribute with the given attribute of the given element depending whether the value attribute is given.
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* Returns null if the element has no attribute with the given name.
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* @param elm The element of which the attribute shall be get or set.
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* @param attrName The attribute name which shall be get or set.
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* @param value The value of the attribute which shall be set.
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*/
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export function attr(elm: HTMLElement | null, attrName: string): string | null;
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export function attr(elm: HTMLElement | null, attrName: string, value: string): void;
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export function attr(elm: HTMLElement | null, attrName: string, value?: string): string | null | void {
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if (isUndefined(value)) {
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return elm ? elm.getAttribute(attrName) : null;
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}
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elm && elm.setAttribute(attrName, value);
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}
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/**
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* Removes the given attribute from the given element.
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* @param elm The element of which the attribute shall be removed.
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* @param attrName The attribute name.
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*/
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export const removeAttr = (elm: Element | null, attrName: string): void => {
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elm && elm.removeAttribute(attrName);
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};
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/**
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* Gets or sets the scrollLeft value of the given element depending whether the value attribute is given.
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* @param elm The element of which the scrollLeft value shall be get or set.
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* @param value The scrollLeft value which shall be set.
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*/
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export function scrollLeft(elm: HTMLElement | null): number;
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export function scrollLeft(elm: HTMLElement | null, value: number): void;
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export function scrollLeft(elm: HTMLElement | null, value?: number): number | void {
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return getSetProp('scrollLeft', 0, elm, value) as number;
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}
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/**
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* Gets or sets the scrollTop value of the given element depending whether the value attribute is given.
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* @param elm The element of which the scrollTop value shall be get or set.
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* @param value The scrollTop value which shall be set.
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*/
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export function scrollTop(elm: HTMLElement | null): number;
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export function scrollTop(elm: HTMLElement | null, value: number): void;
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export function scrollTop(elm: HTMLElement | null, value?: number): number | void {
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return getSetProp('scrollTop', 0, elm, value) as number;
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}
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/**
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* Gets or sets the value of the given input element depending whether the value attribute is given.
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* @param elm The input element of which the value shall be get or set.
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* @param value The value which shall be set.
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*/
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export function val(elm: HTMLInputElement | null): string;
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export function val(elm: HTMLInputElement | null, value: string): void;
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export function val(elm: HTMLInputElement | null, value?: string): string | void {
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return getSetProp('value', '', elm, value) as string;
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}
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