| 1 | "use strict";
|
| 2 | Object.defineProperty(exports, "__esModule", { value: true });
|
| 3 | exports.BackToTop = void 0;
|
| 4 | const tslib_1 = require("tslib");
|
| 5 | const React = tslib_1.__importStar(require("react"));
|
| 6 | const back_to_top_1 = tslib_1.__importDefault(require("@patternfly/react-styles/css/components/BackToTop/back-to-top"));
|
| 7 | const react_styles_1 = require("@patternfly/react-styles");
|
| 8 | const angle_up_icon_1 = tslib_1.__importDefault(require('@patternfly/react-icons/dist/js/icons/angle-up-icon'));
|
| 9 | const util_1 = require("../../helpers/util");
|
| 10 | const Button_1 = require("../Button");
|
| 11 | const BackToTopBase = (_a) => {
|
| 12 | var { className, title = 'Back to top', innerRef, scrollableSelector, isAlwaysVisible = false } = _a, props = tslib_1.__rest(_a, ["className", "title", "innerRef", "scrollableSelector", "isAlwaysVisible"]);
|
| 13 | const [visible, setVisible] = React.useState(isAlwaysVisible);
|
| 14 | React.useEffect(() => {
|
| 15 | setVisible(isAlwaysVisible);
|
| 16 | }, [isAlwaysVisible]);
|
| 17 | const [scrollElement, setScrollElement] = React.useState(null);
|
| 18 | const toggleVisible = () => {
|
| 19 | const scrolled = scrollElement.scrollY ? scrollElement.scrollY : scrollElement.scrollTop;
|
| 20 | if (!isAlwaysVisible) {
|
| 21 | if (scrolled > 400) {
|
| 22 | setVisible(true);
|
| 23 | }
|
| 24 | else {
|
| 25 | setVisible(false);
|
| 26 | }
|
| 27 | }
|
| 28 | };
|
| 29 | React.useEffect(() => {
|
| 30 | const hasScrollSpy = Boolean(scrollableSelector);
|
| 31 | if (hasScrollSpy) {
|
| 32 | const scrollEl = document.querySelector(scrollableSelector);
|
| 33 | if (!util_1.canUseDOM || !(scrollEl instanceof HTMLElement)) {
|
| 34 | return;
|
| 35 | }
|
| 36 | setScrollElement(scrollEl);
|
| 37 | scrollEl.addEventListener('scroll', toggleVisible);
|
| 38 | return () => {
|
| 39 | scrollEl.removeEventListener('scroll', toggleVisible);
|
| 40 | };
|
| 41 | }
|
| 42 | else {
|
| 43 | if (!util_1.canUseDOM) {
|
| 44 | return;
|
| 45 | }
|
| 46 | const scrollEl = window;
|
| 47 | setScrollElement(scrollEl);
|
| 48 | scrollEl.addEventListener('scroll', toggleVisible);
|
| 49 | return () => {
|
| 50 | scrollEl.removeEventListener('scroll', toggleVisible);
|
| 51 | };
|
| 52 | }
|
| 53 | }, [scrollableSelector, toggleVisible]);
|
| 54 | const handleClick = () => {
|
| 55 | scrollElement.scrollTo({ top: 0, behavior: 'smooth' });
|
| 56 | };
|
| 57 | return (React.createElement("div", Object.assign({ className: react_styles_1.css(back_to_top_1.default.backToTop, !visible && back_to_top_1.default.modifiers.hidden, className), ref: innerRef, onClick: handleClick }, props),
|
| 58 | React.createElement(Button_1.Button, { variant: "primary", icon: React.createElement(angle_up_icon_1.default, { "aria-hidden": "true" }), iconPosition: "right" }, title)));
|
| 59 | };
|
| 60 | exports.BackToTop = React.forwardRef((props, ref) => (React.createElement(BackToTopBase, Object.assign({ innerRef: ref }, props))));
|
| 61 | exports.BackToTop.displayName = 'BackToTop';
|
| 62 | |
| \ | No newline at end of file |