127 lines
3.8 KiB
JavaScript
127 lines
3.8 KiB
JavaScript
'use strict';
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Object.defineProperty(exports, '__esModule', { value: true });
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var core = require('@vueuse/core');
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var easings = require('../easings.js');
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var types = require('../types.js');
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var raf = require('../raf.js');
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var style = require('./style.js');
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var shared = require('@vue/shared');
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const isScroll = (el, isVertical) => {
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if (!core.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 = style.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 (!core.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 (!core.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 (!core.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 = easings.easeInOutCubic(time > duration ? duration : time, from, to, duration);
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if (types.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.rAF(scroll);
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} else if (shared.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 && raf.cAF(handle);
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};
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}
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const getScrollElement = (target, container) => {
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if (types.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 (types.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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exports.animateScrollTo = animateScrollTo;
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exports.getScrollBarWidth = getScrollBarWidth;
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exports.getScrollContainer = getScrollContainer;
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exports.getScrollElement = getScrollElement;
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exports.getScrollTop = getScrollTop;
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exports.isScroll = isScroll;
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exports.scrollIntoView = scrollIntoView;
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//# sourceMappingURL=scroll.js.map
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