114 lines
4.6 KiB
JavaScript
114 lines
4.6 KiB
JavaScript
/*!
|
|
* Bootstrap scrollbar.js v5.3.2 (https://getbootstrap.com/)
|
|
* Copyright 2011-2023 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
|
|
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
|
|
*/
|
|
(function (global, factory) {
|
|
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('../dom/manipulator.js'), require('../dom/selector-engine.js'), require('./index.js')) :
|
|
typeof define === 'function' && define.amd ? define(['../dom/manipulator', '../dom/selector-engine', './index'], factory) :
|
|
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Scrollbar = factory(global.Manipulator, global.SelectorEngine, global.Index));
|
|
})(this, (function (Manipulator, SelectorEngine, index_js) { 'use strict';
|
|
|
|
/**
|
|
* --------------------------------------------------------------------------
|
|
* Bootstrap util/scrollBar.js
|
|
* Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
|
|
* --------------------------------------------------------------------------
|
|
*/
|
|
|
|
|
|
/**
|
|
* Constants
|
|
*/
|
|
|
|
const SELECTOR_FIXED_CONTENT = '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top';
|
|
const SELECTOR_STICKY_CONTENT = '.sticky-top';
|
|
const PROPERTY_PADDING = 'padding-right';
|
|
const PROPERTY_MARGIN = 'margin-right';
|
|
|
|
/**
|
|
* Class definition
|
|
*/
|
|
|
|
class ScrollBarHelper {
|
|
constructor() {
|
|
this._element = document.body;
|
|
}
|
|
|
|
// Public
|
|
getWidth() {
|
|
// https://developer.mozilla.org/en-US/docs/Web/API/Window/innerWidth#usage_notes
|
|
const documentWidth = document.documentElement.clientWidth;
|
|
return Math.abs(window.innerWidth - documentWidth);
|
|
}
|
|
hide() {
|
|
const width = this.getWidth();
|
|
this._disableOverFlow();
|
|
// give padding to element to balance the hidden scrollbar width
|
|
this._setElementAttributes(this._element, PROPERTY_PADDING, calculatedValue => calculatedValue + width);
|
|
// trick: We adjust positive paddingRight and negative marginRight to sticky-top elements to keep showing fullwidth
|
|
this._setElementAttributes(SELECTOR_FIXED_CONTENT, PROPERTY_PADDING, calculatedValue => calculatedValue + width);
|
|
this._setElementAttributes(SELECTOR_STICKY_CONTENT, PROPERTY_MARGIN, calculatedValue => calculatedValue - width);
|
|
}
|
|
reset() {
|
|
this._resetElementAttributes(this._element, 'overflow');
|
|
this._resetElementAttributes(this._element, PROPERTY_PADDING);
|
|
this._resetElementAttributes(SELECTOR_FIXED_CONTENT, PROPERTY_PADDING);
|
|
this._resetElementAttributes(SELECTOR_STICKY_CONTENT, PROPERTY_MARGIN);
|
|
}
|
|
isOverflowing() {
|
|
return this.getWidth() > 0;
|
|
}
|
|
|
|
// Private
|
|
_disableOverFlow() {
|
|
this._saveInitialAttribute(this._element, 'overflow');
|
|
this._element.style.overflow = 'hidden';
|
|
}
|
|
_setElementAttributes(selector, styleProperty, callback) {
|
|
const scrollbarWidth = this.getWidth();
|
|
const manipulationCallBack = element => {
|
|
if (element !== this._element && window.innerWidth > element.clientWidth + scrollbarWidth) {
|
|
return;
|
|
}
|
|
this._saveInitialAttribute(element, styleProperty);
|
|
const calculatedValue = window.getComputedStyle(element).getPropertyValue(styleProperty);
|
|
element.style.setProperty(styleProperty, `${callback(Number.parseFloat(calculatedValue))}px`);
|
|
};
|
|
this._applyManipulationCallback(selector, manipulationCallBack);
|
|
}
|
|
_saveInitialAttribute(element, styleProperty) {
|
|
const actualValue = element.style.getPropertyValue(styleProperty);
|
|
if (actualValue) {
|
|
Manipulator.setDataAttribute(element, styleProperty, actualValue);
|
|
}
|
|
}
|
|
_resetElementAttributes(selector, styleProperty) {
|
|
const manipulationCallBack = element => {
|
|
const value = Manipulator.getDataAttribute(element, styleProperty);
|
|
// We only want to remove the property if the value is `null`; the value can also be zero
|
|
if (value === null) {
|
|
element.style.removeProperty(styleProperty);
|
|
return;
|
|
}
|
|
Manipulator.removeDataAttribute(element, styleProperty);
|
|
element.style.setProperty(styleProperty, value);
|
|
};
|
|
this._applyManipulationCallback(selector, manipulationCallBack);
|
|
}
|
|
_applyManipulationCallback(selector, callBack) {
|
|
if (index_js.isElement(selector)) {
|
|
callBack(selector);
|
|
return;
|
|
}
|
|
for (const sel of SelectorEngine.find(selector, this._element)) {
|
|
callBack(sel);
|
|
}
|
|
}
|
|
}
|
|
|
|
return ScrollBarHelper;
|
|
|
|
}));
|
|
//# sourceMappingURL=scrollbar.js.map
|