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admin-system/node_modules/element-plus/lib/components/tabs/src/tab-bar2.js

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+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var vue = require('vue');
+var core = require('@vueuse/core');
+var constants = require('./constants.js');
+var tabBar = require('./tab-bar.js');
+var pluginVue_exportHelper = require('../../../_virtual/plugin-vue_export-helper.js');
+var strings = require('../../../utils/strings.js');
+var error = require('../../../utils/error.js');
+var index = require('../../../hooks/use-namespace/index.js');
+var types = require('../../../utils/types.js');
+
+const COMPONENT_NAME = "ElTabBar";
+const __default__ = vue.defineComponent({
+  name: COMPONENT_NAME
+});
+const _sfc_main = /* @__PURE__ */ vue.defineComponent({
+  ...__default__,
+  props: tabBar.tabBarProps,
+  setup(__props, { expose }) {
+    const props = __props;
+    const rootTabs = vue.inject(constants.tabsRootContextKey);
+    if (!rootTabs)
+      error.throwError(COMPONENT_NAME, "<el-tabs><el-tab-bar /></el-tabs>");
+    const ns = index.useNamespace("tabs");
+    const barRef = vue.ref();
+    const barStyle = vue.ref();
+    const getBarStyle = () => {
+      let offset = 0;
+      let tabSize = 0;
+      const sizeName = ["top", "bottom"].includes(rootTabs.props.tabPosition) ? "width" : "height";
+      const sizeDir = sizeName === "width" ? "x" : "y";
+      const position = sizeDir === "x" ? "left" : "top";
+      props.tabs.every((tab) => {
+        if (types.isUndefined(tab.paneName))
+          return false;
+        const $el = props.tabRefs[tab.paneName];
+        if (!$el)
+          return false;
+        if (!tab.active) {
+          return true;
+        }
+        offset = $el[`offset${strings.capitalize(position)}`];
+        tabSize = $el[`client${strings.capitalize(sizeName)}`];
+        const tabStyles = window.getComputedStyle($el);
+        if (sizeName === "width") {
+          tabSize -= Number.parseFloat(tabStyles.paddingLeft) + Number.parseFloat(tabStyles.paddingRight);
+          offset += Number.parseFloat(tabStyles.paddingLeft);
+        }
+        return false;
+      });
+      return {
+        [sizeName]: `${tabSize}px`,
+        transform: `translate${strings.capitalize(sizeDir)}(${offset}px)`
+      };
+    };
+    const update = () => barStyle.value = getBarStyle();
+    const tabObservers = [];
+    const observerTabs = () => {
+      tabObservers.forEach((observer) => observer.stop());
+      tabObservers.length = 0;
+      Object.values(props.tabRefs).forEach((tab) => {
+        tabObservers.push(core.useResizeObserver(tab, update));
+      });
+    };
+    vue.watch(() => props.tabs, async () => {
+      await vue.nextTick();
+      update();
+      observerTabs();
+    }, { immediate: true });
+    const barObserver = core.useResizeObserver(barRef, () => update());
+    vue.onBeforeUnmount(() => {
+      tabObservers.forEach((observer) => observer.stop());
+      tabObservers.length = 0;
+      barObserver.stop();
+    });
+    expose({
+      ref: barRef,
+      update
+    });
+    return (_ctx, _cache) => {
+      return vue.openBlock(), vue.createElementBlock("div", {
+        ref_key: "barRef",
+        ref: barRef,
+        class: vue.normalizeClass([vue.unref(ns).e("active-bar"), vue.unref(ns).is(vue.unref(rootTabs).props.tabPosition)]),
+        style: vue.normalizeStyle(barStyle.value)
+      }, null, 6);
+    };
+  }
+});
+var TabBar = /* @__PURE__ */ pluginVue_exportHelper["default"](_sfc_main, [["__file", "tab-bar.vue"]]);
+
+exports["default"] = TabBar;
+//# sourceMappingURL=tab-bar2.js.map