debian-mirror-gitlab/app/assets/javascripts/lib/utils/dom_utils.js
2020-08-09 17:44:08 +05:30

49 lines
1.6 KiB
JavaScript

import { has } from 'lodash';
import { isInIssuePage, isInMRPage, isInEpicPage } from './common_utils';
export const addClassIfElementExists = (element, className) => {
if (element) {
element.classList.add(className);
}
};
export const isInVueNoteablePage = () => isInIssuePage() || isInEpicPage() || isInMRPage();
export const canScrollUp = ({ scrollTop }, margin = 0) => scrollTop > margin;
export const canScrollDown = ({ scrollTop, offsetHeight, scrollHeight }, margin = 0) =>
scrollTop + offsetHeight < scrollHeight - margin;
export const toggleContainerClasses = (containerEl, classList) => {
if (containerEl) {
// eslint-disable-next-line array-callback-return
Object.entries(classList).map(([key, value]) => {
if (value) {
containerEl.classList.add(key);
} else {
containerEl.classList.remove(key);
}
});
}
};
/**
* Return a object mapping element dataset names to booleans.
*
* This is useful for data- attributes whose presense represent
* a truthiness, no matter the value of the attribute. The absense of the
* attribute represents falsiness.
*
* This can be useful when Rails-provided boolean-like values are passed
* directly to the HAML template, rather than cast to a string.
*
* @param {HTMLElement} element - The DOM element to inspect
* @param {string[]} names - The dataset (i.e., camelCase) names to inspect
* @returns {Object.<string, boolean>}
*/
export const parseBooleanDataAttributes = ({ dataset }, names) =>
names.reduce((acc, name) => {
acc[name] = has(dataset, name);
return acc;
}, {});