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admin/node_modules/element-plus/es/components/select/src/option-group.mjs

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+import { defineComponent, ref, getCurrentInstance, provide, reactive, toRefs, computed, onMounted, withDirectives, openBlock, createElementBlock, normalizeClass, createElementVNode, toDisplayString, renderSlot, vShow, isVNode } from 'vue';
+import { useMutationObserver } from '@vueuse/core';
+import { selectGroupKey } from './token.mjs';
+import _export_sfc from '../../../_virtual/plugin-vue_export-helper.mjs';
+import { useNamespace } from '../../../hooks/use-namespace/index.mjs';
+import { castArray } from 'lodash-unified';
+import { isArray } from '@vue/shared';
+
+const _sfc_main = defineComponent({
+  name: "ElOptionGroup",
+  componentName: "ElOptionGroup",
+  props: {
+    label: String,
+    disabled: Boolean
+  },
+  setup(props) {
+    const ns = useNamespace("select");
+    const groupRef = ref();
+    const instance = getCurrentInstance();
+    const children = ref([]);
+    provide(selectGroupKey, reactive({
+      ...toRefs(props)
+    }));
+    const visible = computed(() => children.value.some((option) => option.visible === true));
+    const isOption = (node) => {
+      var _a;
+      return node.type.name === "ElOption" && !!((_a = node.component) == null ? void 0 : _a.proxy);
+    };
+    const flattedChildren = (node) => {
+      const nodes = castArray(node);
+      const children2 = [];
+      nodes.forEach((child) => {
+        var _a;
+        if (!isVNode(child))
+          return;
+        if (isOption(child)) {
+          children2.push(child.component.proxy);
+        } else if (isArray(child.children) && child.children.length) {
+          children2.push(...flattedChildren(child.children));
+        } else if ((_a = child.component) == null ? void 0 : _a.subTree) {
+          children2.push(...flattedChildren(child.component.subTree));
+        }
+      });
+      return children2;
+    };
+    const updateChildren = () => {
+      children.value = flattedChildren(instance.subTree);
+    };
+    onMounted(() => {
+      updateChildren();
+    });
+    useMutationObserver(groupRef, updateChildren, {
+      attributes: true,
+      subtree: true,
+      childList: true
+    });
+    return {
+      groupRef,
+      visible,
+      ns
+    };
+  }
+});
+function _sfc_render(_ctx, _cache, $props, $setup, $data, $options) {
+  return withDirectives((openBlock(), createElementBlock("ul", {
+    ref: "groupRef",
+    class: normalizeClass(_ctx.ns.be("group", "wrap"))
+  }, [
+    createElementVNode("li", {
+      class: normalizeClass(_ctx.ns.be("group", "title"))
+    }, toDisplayString(_ctx.label), 3),
+    createElementVNode("li", null, [
+      createElementVNode("ul", {
+        class: normalizeClass(_ctx.ns.b("group"))
+      }, [
+        renderSlot(_ctx.$slots, "default")
+      ], 2)
+    ])
+  ], 2)), [
+    [vShow, _ctx.visible]
+  ]);
+}
+var OptionGroup = /* @__PURE__ */ _export_sfc(_sfc_main, [["render", _sfc_render], ["__file", "option-group.vue"]]);
+
+export { OptionGroup as default };
+//# sourceMappingURL=option-group.mjs.map