117 lines
3.5 KiB
JavaScript
117 lines
3.5 KiB
JavaScript
import { isClient } from '@vueuse/core';
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import { easeInOutCubic } from '../easings.mjs';
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import { isWindow } from '../types.mjs';
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import { rAF, cAF } from '../raf.mjs';
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import { getStyle } from './style.mjs';
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import { isFunction } from '@vue/shared';
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const isScroll = (el, isVertical) => {
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if (!isClient)
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return false;
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const key = {
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undefined: "overflow",
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true: "overflow-y",
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false: "overflow-x"
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}[String(isVertical)];
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const overflow = getStyle(el, key);
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return ["scroll", "auto", "overlay"].some((s) => overflow.includes(s));
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};
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const getScrollContainer = (el, isVertical) => {
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if (!isClient)
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return;
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let parent = el;
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while (parent) {
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if ([window, document, document.documentElement].includes(parent))
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return window;
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if (isScroll(parent, isVertical))
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return parent;
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parent = parent.parentNode;
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}
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return parent;
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};
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let scrollBarWidth;
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const getScrollBarWidth = (namespace) => {
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var _a;
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if (!isClient)
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return 0;
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if (scrollBarWidth !== void 0)
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return scrollBarWidth;
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const outer = document.createElement("div");
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outer.className = `${namespace}-scrollbar__wrap`;
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outer.style.visibility = "hidden";
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outer.style.width = "100px";
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outer.style.position = "absolute";
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outer.style.top = "-9999px";
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document.body.appendChild(outer);
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const widthNoScroll = outer.offsetWidth;
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outer.style.overflow = "scroll";
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const inner = document.createElement("div");
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inner.style.width = "100%";
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outer.appendChild(inner);
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const widthWithScroll = inner.offsetWidth;
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(_a = outer.parentNode) == null ? void 0 : _a.removeChild(outer);
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scrollBarWidth = widthNoScroll - widthWithScroll;
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return scrollBarWidth;
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};
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function scrollIntoView(container, selected) {
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if (!isClient)
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return;
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if (!selected) {
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container.scrollTop = 0;
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return;
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}
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const offsetParents = [];
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let pointer = selected.offsetParent;
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while (pointer !== null && container !== pointer && container.contains(pointer)) {
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offsetParents.push(pointer);
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pointer = pointer.offsetParent;
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}
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const top = selected.offsetTop + offsetParents.reduce((prev, curr) => prev + curr.offsetTop, 0);
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const bottom = top + selected.offsetHeight;
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const viewRectTop = container.scrollTop;
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const viewRectBottom = viewRectTop + container.clientHeight;
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if (top < viewRectTop) {
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container.scrollTop = top;
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} else if (bottom > viewRectBottom) {
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container.scrollTop = bottom - container.clientHeight;
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}
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}
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function animateScrollTo(container, from, to, duration, callback) {
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const startTime = Date.now();
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let handle;
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const scroll = () => {
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const timestamp = Date.now();
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const time = timestamp - startTime;
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const nextScrollTop = easeInOutCubic(time > duration ? duration : time, from, to, duration);
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if (isWindow(container)) {
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container.scrollTo(window.pageXOffset, nextScrollTop);
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} else {
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container.scrollTop = nextScrollTop;
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}
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if (time < duration) {
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handle = rAF(scroll);
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} else if (isFunction(callback)) {
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callback();
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}
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};
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scroll();
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return () => {
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handle && cAF(handle);
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};
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}
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const getScrollElement = (target, container) => {
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if (isWindow(container)) {
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return target.ownerDocument.documentElement;
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}
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return container;
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};
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const getScrollTop = (container) => {
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if (isWindow(container)) {
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return window.scrollY;
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}
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return container.scrollTop;
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};
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export { animateScrollTo, getScrollBarWidth, getScrollContainer, getScrollElement, getScrollTop, isScroll, scrollIntoView };
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//# sourceMappingURL=scroll.mjs.map
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