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node_modules/vant/es/tab/Tab.mjs

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+import { ref, watch, computed, nextTick, watchEffect, defineComponent, getCurrentInstance, mergeProps as _mergeProps, createVNode as _createVNode, vShow as _vShow, withDirectives as _withDirectives } from "vue";
+import { normalizeClass, normalizeStyle, stringifyStyle } from "@vue/shared";
+import { pick, extend, truthProp, unknownProp, numericProp, createNamespace } from "../utils/index.mjs";
+import { TABS_KEY } from "../tabs/Tabs.mjs";
+import { doubleRaf, useParent } from "@vant/use";
+import { useId } from "../composables/use-id.mjs";
+import { useExpose } from "../composables/use-expose.mjs";
+import { routeProps } from "../composables/use-route.mjs";
+import { useProvideTabStatus } from "../composables/use-tab-status.mjs";
+import { TabTitle } from "./TabTitle.mjs";
+import { SwipeItem } from "../swipe-item/index.mjs";
+const [name, bem] = createNamespace("tab");
+const tabProps = extend({}, routeProps, {
+  dot: Boolean,
+  name: numericProp,
+  badge: numericProp,
+  title: String,
+  disabled: Boolean,
+  titleClass: unknownProp,
+  titleStyle: [String, Object],
+  showZeroBadge: truthProp
+});
+var stdin_default = defineComponent({
+  name,
+  props: tabProps,
+  setup(props, {
+    slots
+  }) {
+    const id = useId();
+    const inited = ref(false);
+    const instance = getCurrentInstance();
+    const {
+      parent,
+      index
+    } = useParent(TABS_KEY);
+    if (!parent) {
+      if (process.env.NODE_ENV !== "production") {
+        console.error("[Vant] <Tab> must be a child component of <Tabs>.");
+      }
+      return;
+    }
+    const getName = () => {
+      var _a;
+      return (_a = props.name) != null ? _a : index.value;
+    };
+    const init = () => {
+      inited.value = true;
+      if (parent.props.lazyRender) {
+        nextTick(() => {
+          parent.onRendered(getName(), props.title);
+        });
+      }
+    };
+    const active = computed(() => {
+      const isActive = getName() === parent.currentName.value;
+      if (isActive && !inited.value) {
+        init();
+      }
+      return isActive;
+    });
+    const parsedClass = ref("");
+    const parsedStyle = ref("");
+    watchEffect(() => {
+      const {
+        titleClass,
+        titleStyle
+      } = props;
+      parsedClass.value = titleClass ? normalizeClass(titleClass) : "";
+      parsedStyle.value = titleStyle && typeof titleStyle !== "string" ? stringifyStyle(normalizeStyle(titleStyle)) : titleStyle;
+    });
+    const renderTitle = (onClickTab) => _createVNode(TabTitle, _mergeProps({
+      "key": id,
+      "id": `${parent.id}-${index.value}`,
+      "ref": parent.setTitleRefs(index.value),
+      "style": parsedStyle.value,
+      "class": parsedClass.value,
+      "isActive": active.value,
+      "controls": id,
+      "scrollable": parent.scrollable.value,
+      "activeColor": parent.props.titleActiveColor,
+      "inactiveColor": parent.props.titleInactiveColor,
+      "onClick": (event) => onClickTab(instance.proxy, index.value, event)
+    }, pick(parent.props, ["type", "color", "shrink"]), pick(props, ["dot", "badge", "title", "disabled", "showZeroBadge"])), {
+      title: slots.title
+    });
+    const hasInactiveClass = ref(!active.value);
+    watch(active, (val) => {
+      if (val) {
+        hasInactiveClass.value = false;
+      } else {
+        doubleRaf(() => {
+          hasInactiveClass.value = true;
+        });
+      }
+    });
+    watch(() => props.title, () => {
+      parent.setLine();
+      parent.scrollIntoView();
+    });
+    useProvideTabStatus(active);
+    useExpose({
+      id,
+      renderTitle
+    });
+    return () => {
+      var _a;
+      const label = `${parent.id}-${index.value}`;
+      const {
+        animated,
+        swipeable,
+        scrollspy,
+        lazyRender
+      } = parent.props;
+      if (!slots.default && !animated) {
+        return;
+      }
+      const show = scrollspy || active.value;
+      if (animated || swipeable) {
+        return _createVNode(SwipeItem, {
+          "id": id,
+          "role": "tabpanel",
+          "class": bem("panel-wrapper", {
+            inactive: hasInactiveClass.value
+          }),
+          "tabindex": active.value ? 0 : -1,
+          "aria-hidden": !active.value,
+          "aria-labelledby": label,
+          "data-allow-mismatch": "attribute"
+        }, {
+          default: () => {
+            var _a2;
+            return [_createVNode("div", {
+              "class": bem("panel")
+            }, [(_a2 = slots.default) == null ? void 0 : _a2.call(slots)])];
+          }
+        });
+      }
+      const shouldRender = inited.value || scrollspy || !lazyRender;
+      const Content = shouldRender ? (_a = slots.default) == null ? void 0 : _a.call(slots) : null;
+      return _withDirectives(_createVNode("div", {
+        "id": id,
+        "role": "tabpanel",
+        "class": bem("panel"),
+        "tabindex": show ? 0 : -1,
+        "aria-labelledby": label,
+        "data-allow-mismatch": "attribute"
+      }, [Content]), [[_vShow, show]]);
+    };
+  }
+});
+export {
+  stdin_default as default,
+  tabProps
+};