138 lines
4.4 KiB
JavaScript
138 lines
4.4 KiB
JavaScript
var __defProp = Object.defineProperty;
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var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
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var __getOwnPropNames = Object.getOwnPropertyNames;
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var __hasOwnProp = Object.prototype.hasOwnProperty;
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var __export = (target, all) => {
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for (var name2 in all)
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__defProp(target, name2, { get: all[name2], enumerable: true });
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};
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var __copyProps = (to, from, except, desc) => {
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if (from && typeof from === "object" || typeof from === "function") {
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for (let key of __getOwnPropNames(from))
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if (!__hasOwnProp.call(to, key) && key !== except)
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__defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
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}
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return to;
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};
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var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
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var stdin_exports = {};
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__export(stdin_exports, {
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backTopProps: () => backTopProps,
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default: () => stdin_default
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});
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module.exports = __toCommonJS(stdin_exports);
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var import_vue = require("vue");
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var import_utils = require("../utils");
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var import_util = require("../lazyload/vue-lazyload/util");
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var import_use = require("@vant/use");
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var import_icon = require("../icon");
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const [name, bem] = (0, import_utils.createNamespace)("back-top");
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const backTopProps = {
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right: import_utils.numericProp,
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bottom: import_utils.numericProp,
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zIndex: import_utils.numericProp,
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target: [String, Object],
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offset: (0, import_utils.makeNumericProp)(200),
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immediate: Boolean,
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teleport: {
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type: [String, Object],
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default: "body"
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}
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};
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var stdin_default = (0, import_vue.defineComponent)({
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name,
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inheritAttrs: false,
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props: backTopProps,
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emits: ["click"],
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setup(props, {
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emit,
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slots,
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attrs
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}) {
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let shouldReshow = false;
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const show = (0, import_vue.ref)(false);
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const root = (0, import_vue.ref)();
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const scrollParent = (0, import_vue.ref)();
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const style = (0, import_vue.computed)(() => (0, import_utils.extend)((0, import_utils.getZIndexStyle)(props.zIndex), {
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right: (0, import_utils.addUnit)(props.right),
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bottom: (0, import_utils.addUnit)(props.bottom)
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}));
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const onClick = (event) => {
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var _a;
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emit("click", event);
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(_a = scrollParent.value) == null ? void 0 : _a.scrollTo({
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top: 0,
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behavior: props.immediate ? "auto" : "smooth"
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});
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};
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const scroll = () => {
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show.value = scrollParent.value ? (0, import_utils.getScrollTop)(scrollParent.value) >= +props.offset : false;
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};
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const getTarget = () => {
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const {
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target
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} = props;
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if (typeof target === "string") {
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const el = document.querySelector(target);
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if (el) {
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return el;
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}
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if (process.env.NODE_ENV !== "production") {
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console.error(`[Vant] BackTop: target element "${target}" was not found, the BackTop component will not be rendered.`);
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}
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} else {
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return target;
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}
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};
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const updateTarget = () => {
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if (import_utils.inBrowser) {
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(0, import_vue.nextTick)(() => {
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scrollParent.value = props.target ? getTarget() : (0, import_use.getScrollParent)(root.value);
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scroll();
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});
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}
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};
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(0, import_use.useEventListener)("scroll", (0, import_util.throttle)(scroll, 100), {
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target: scrollParent
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});
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(0, import_vue.onMounted)(updateTarget);
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(0, import_vue.onActivated)(() => {
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if (shouldReshow) {
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show.value = true;
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shouldReshow = false;
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}
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});
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(0, import_vue.onDeactivated)(() => {
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if (show.value && props.teleport) {
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show.value = false;
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shouldReshow = true;
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}
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});
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(0, import_vue.watch)(() => props.target, updateTarget);
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return () => {
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const Content = (0, import_vue.createVNode)("div", (0, import_vue.mergeProps)({
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"ref": !props.teleport ? root : void 0,
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"class": bem({
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active: show.value
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}),
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"style": style.value,
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"onClick": onClick
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}, attrs), [slots.default ? slots.default() : (0, import_vue.createVNode)(import_icon.Icon, {
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"name": "back-top",
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"class": bem("icon")
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}, null)]);
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if (props.teleport) {
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return [(0, import_vue.createVNode)("div", {
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"ref": root,
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"class": bem("placeholder")
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}, null), (0, import_vue.createVNode)(import_vue.Teleport, {
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"to": props.teleport
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}, {
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default: () => [Content]
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})];
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}
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return Content;
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};
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}
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});
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