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356
node_modules/vant/es/tabs/Tabs.mjs
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vendored
Normal file
356
node_modules/vant/es/tabs/Tabs.mjs
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vendored
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import { ref, watch, computed, reactive, nextTick, onActivated, defineComponent, createVNode as _createVNode } from "vue";
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import { isDef, addUnit, isHidden, unitToPx, truthProp, numericProp, windowWidth, getElementTop, makeStringProp, callInterceptor, createNamespace, makeNumericProp, setRootScrollTop, BORDER_TOP_BOTTOM } from "../utils/index.mjs";
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import { scrollLeftTo, scrollTopTo } from "./utils.mjs";
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import { useRect, useChildren, useScrollParent, useEventListener, onMountedOrActivated } from "@vant/use";
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import { useId } from "../composables/use-id.mjs";
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import { route } from "../composables/use-route.mjs";
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import { useRefs } from "../composables/use-refs.mjs";
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import { useExpose } from "../composables/use-expose.mjs";
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import { onPopupReopen } from "../composables/on-popup-reopen.mjs";
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import { useVisibilityChange } from "../composables/use-visibility-change.mjs";
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import { Sticky } from "../sticky/index.mjs";
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import TabsContent from "./TabsContent.mjs";
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const [name, bem] = createNamespace("tabs");
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const tabsProps = {
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type: makeStringProp("line"),
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color: String,
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border: Boolean,
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sticky: Boolean,
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shrink: Boolean,
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active: makeNumericProp(0),
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duration: makeNumericProp(0.3),
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animated: Boolean,
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ellipsis: truthProp,
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swipeable: Boolean,
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scrollspy: Boolean,
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offsetTop: makeNumericProp(0),
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background: String,
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lazyRender: truthProp,
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showHeader: truthProp,
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lineWidth: numericProp,
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lineHeight: numericProp,
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beforeChange: Function,
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swipeThreshold: makeNumericProp(5),
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titleActiveColor: String,
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titleInactiveColor: String
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};
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const TABS_KEY = Symbol(name);
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var stdin_default = defineComponent({
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name,
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props: tabsProps,
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emits: ["change", "scroll", "rendered", "clickTab", "update:active"],
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setup(props, {
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emit,
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slots
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}) {
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let tabHeight;
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let lockScroll;
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let stickyFixed;
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let cancelScrollLeftToRaf;
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let cancelScrollTopToRaf;
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const root = ref();
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const navRef = ref();
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const wrapRef = ref();
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const contentRef = ref();
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const id = useId();
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const scroller = useScrollParent(root);
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const [titleRefs, setTitleRefs] = useRefs();
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const {
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children,
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linkChildren
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} = useChildren(TABS_KEY);
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const state = reactive({
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inited: false,
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position: "",
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lineStyle: {},
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currentIndex: -1
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});
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const scrollable = computed(() => children.length > +props.swipeThreshold || !props.ellipsis || props.shrink);
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const navStyle = computed(() => ({
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borderColor: props.color,
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background: props.background
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}));
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const getTabName = (tab, index) => {
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var _a;
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return (_a = tab.name) != null ? _a : index;
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};
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const currentName = computed(() => {
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const activeTab = children[state.currentIndex];
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if (activeTab) {
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return getTabName(activeTab, state.currentIndex);
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}
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});
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const offsetTopPx = computed(() => unitToPx(props.offsetTop));
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const scrollOffset = computed(() => {
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if (props.sticky) {
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return offsetTopPx.value + tabHeight;
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}
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return 0;
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});
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const scrollIntoView = (immediate) => {
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const nav = navRef.value;
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const titles = titleRefs.value;
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if (!scrollable.value || !nav || !titles || !titles[state.currentIndex]) {
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return;
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}
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const title = titles[state.currentIndex].$el;
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const to = title.offsetLeft - (nav.offsetWidth - title.offsetWidth) / 2;
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if (cancelScrollLeftToRaf) cancelScrollLeftToRaf();
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cancelScrollLeftToRaf = scrollLeftTo(nav, to, immediate ? 0 : +props.duration);
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};
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const setLine = () => {
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const shouldAnimate = state.inited;
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nextTick(() => {
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const titles = titleRefs.value;
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if (!titles || !titles[state.currentIndex] || props.type !== "line" || isHidden(root.value)) {
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return;
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}
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const title = titles[state.currentIndex].$el;
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const {
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lineWidth,
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lineHeight
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} = props;
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const left = title.offsetLeft + title.offsetWidth / 2;
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const lineStyle = {
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width: addUnit(lineWidth),
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backgroundColor: props.color,
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transform: `translateX(${left}px) translateX(-50%)`
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};
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if (shouldAnimate) {
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lineStyle.transitionDuration = `${props.duration}s`;
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}
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if (isDef(lineHeight)) {
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const height = addUnit(lineHeight);
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lineStyle.height = height;
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lineStyle.borderRadius = height;
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}
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state.lineStyle = lineStyle;
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});
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};
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const findAvailableTab = (index) => {
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const diff = index < state.currentIndex ? -1 : 1;
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while (index >= 0 && index < children.length) {
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if (!children[index].disabled) {
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return index;
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}
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index += diff;
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}
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};
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const setCurrentIndex = (currentIndex, skipScrollIntoView) => {
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const newIndex = findAvailableTab(currentIndex);
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if (!isDef(newIndex)) {
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return;
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}
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const newTab = children[newIndex];
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const newName = getTabName(newTab, newIndex);
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const shouldEmitChange = state.currentIndex !== null;
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if (state.currentIndex !== newIndex) {
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state.currentIndex = newIndex;
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if (!skipScrollIntoView) {
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scrollIntoView();
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}
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setLine();
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}
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if (newName !== props.active) {
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emit("update:active", newName);
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if (shouldEmitChange) {
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emit("change", newName, newTab.title);
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}
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}
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if (stickyFixed && !props.scrollspy) {
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setRootScrollTop(Math.ceil(getElementTop(root.value) - offsetTopPx.value));
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}
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};
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const setCurrentIndexByName = (name2, skipScrollIntoView) => {
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const index = children.findIndex((tab, index2) => getTabName(tab, index2) === name2);
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setCurrentIndex(index === -1 ? 0 : index, skipScrollIntoView);
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};
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const scrollToCurrentContent = (immediate = false) => {
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if (props.scrollspy) {
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const target = children[state.currentIndex].$el;
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if (target && scroller.value) {
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const to = getElementTop(target, scroller.value) - scrollOffset.value;
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lockScroll = true;
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if (cancelScrollTopToRaf) cancelScrollTopToRaf();
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cancelScrollTopToRaf = scrollTopTo(scroller.value, to, immediate ? 0 : +props.duration, () => {
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lockScroll = false;
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});
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}
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}
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};
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const onClickTab = (item, index, event) => {
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const {
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title,
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disabled
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} = children[index];
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const name2 = getTabName(children[index], index);
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if (!disabled) {
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callInterceptor(props.beforeChange, {
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args: [name2],
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done: () => {
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setCurrentIndex(index);
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scrollToCurrentContent();
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}
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});
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route(item);
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}
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emit("clickTab", {
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name: name2,
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title,
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event,
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disabled
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});
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};
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const onStickyScroll = (params) => {
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stickyFixed = params.isFixed;
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emit("scroll", params);
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};
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const scrollTo = (name2) => {
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nextTick(() => {
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setCurrentIndexByName(name2);
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scrollToCurrentContent(true);
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});
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};
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const getCurrentIndexOnScroll = () => {
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for (let index = 0; index < children.length; index++) {
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const {
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top
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} = useRect(children[index].$el);
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if (top > scrollOffset.value) {
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return index === 0 ? 0 : index - 1;
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}
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}
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return children.length - 1;
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};
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const onScroll = () => {
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if (props.scrollspy && !lockScroll) {
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const index = getCurrentIndexOnScroll();
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setCurrentIndex(index);
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}
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};
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const renderLine = () => {
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if (props.type === "line" && children.length) {
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return _createVNode("div", {
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"class": bem("line"),
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"style": state.lineStyle
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}, null);
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}
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};
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const renderHeader = () => {
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var _a, _b, _c;
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const {
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type,
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border,
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sticky
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} = props;
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const Header = [_createVNode("div", {
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"ref": sticky ? void 0 : wrapRef,
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"class": [bem("wrap"), {
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[BORDER_TOP_BOTTOM]: type === "line" && border
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}]
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}, [_createVNode("div", {
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"ref": navRef,
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"role": "tablist",
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"class": bem("nav", [type, {
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shrink: props.shrink,
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complete: scrollable.value
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}]),
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"style": navStyle.value,
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"aria-orientation": "horizontal"
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}, [(_a = slots["nav-left"]) == null ? void 0 : _a.call(slots), children.map((item) => item.renderTitle(onClickTab)), renderLine(), (_b = slots["nav-right"]) == null ? void 0 : _b.call(slots)])]), (_c = slots["nav-bottom"]) == null ? void 0 : _c.call(slots)];
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if (sticky) {
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return _createVNode("div", {
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"ref": wrapRef
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}, [Header]);
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}
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return Header;
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};
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const resize = () => {
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setLine();
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nextTick(() => {
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var _a, _b;
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scrollIntoView(true);
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(_b = (_a = contentRef.value) == null ? void 0 : _a.swipeRef.value) == null ? void 0 : _b.resize();
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});
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};
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watch(() => [props.color, props.duration, props.lineWidth, props.lineHeight], setLine);
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watch(windowWidth, resize);
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watch(() => props.active, (value) => {
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if (value !== currentName.value) {
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setCurrentIndexByName(value);
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}
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});
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watch(() => children.length, () => {
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if (state.inited) {
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setCurrentIndexByName(props.active);
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setLine();
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nextTick(() => {
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scrollIntoView(true);
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});
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}
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});
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const init = () => {
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setCurrentIndexByName(props.active, true);
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nextTick(() => {
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state.inited = true;
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if (wrapRef.value) {
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tabHeight = useRect(wrapRef.value).height;
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}
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scrollIntoView(true);
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});
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};
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const onRendered = (name2, title) => emit("rendered", name2, title);
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useExpose({
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resize,
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scrollTo
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});
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onActivated(setLine);
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onPopupReopen(setLine);
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onMountedOrActivated(init);
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useVisibilityChange(root, setLine);
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useEventListener("scroll", onScroll, {
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target: scroller,
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passive: true
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});
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linkChildren({
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id,
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props,
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setLine,
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scrollable,
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onRendered,
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currentName,
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setTitleRefs,
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scrollIntoView
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});
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return () => _createVNode("div", {
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"ref": root,
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"class": bem([props.type])
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}, [props.showHeader ? props.sticky ? _createVNode(Sticky, {
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"container": root.value,
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"offsetTop": offsetTopPx.value,
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"onScroll": onStickyScroll
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}, {
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default: () => [renderHeader()]
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}) : renderHeader() : null, _createVNode(TabsContent, {
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"ref": contentRef,
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"count": children.length,
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"inited": state.inited,
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"animated": props.animated,
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"duration": props.duration,
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"swipeable": props.swipeable,
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"lazyRender": props.lazyRender,
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"currentIndex": state.currentIndex,
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"onChange": setCurrentIndex
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}, {
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default: () => {
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var _a;
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return [(_a = slots.default) == null ? void 0 : _a.call(slots)];
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}
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})]);
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}
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});
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export {
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TABS_KEY,
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stdin_default as default,
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tabsProps
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};
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