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admin-system/node_modules/element-plus/lib/components/collapse/src/use-collapse.js

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+'use strict';
+
+Object.defineProperty(exports, '__esModule', { value: true });
+
+var vue = require('vue');
+var constants = require('./constants.js');
+var lodashUnified = require('lodash-unified');
+var event = require('../../../constants/event.js');
+var index = require('../../../hooks/use-namespace/index.js');
+var shared = require('@vue/shared');
+var types = require('../../../utils/types.js');
+var error = require('../../../utils/error.js');
+
+const SCOPE = "ElCollapse";
+const useCollapse = (props, emit) => {
+  const activeNames = vue.ref(lodashUnified.castArray(props.modelValue));
+  const setActiveNames = (_activeNames) => {
+    activeNames.value = _activeNames;
+    const value = props.accordion ? activeNames.value[0] : activeNames.value;
+    emit(event.UPDATE_MODEL_EVENT, value);
+    emit(event.CHANGE_EVENT, value);
+  };
+  const handleChange = (name) => {
+    if (props.accordion) {
+      setActiveNames([activeNames.value[0] === name ? "" : name]);
+    } else {
+      const _activeNames = [...activeNames.value];
+      const index = _activeNames.indexOf(name);
+      if (index > -1) {
+        _activeNames.splice(index, 1);
+      } else {
+        _activeNames.push(name);
+      }
+      setActiveNames(_activeNames);
+    }
+  };
+  const handleItemClick = async (name) => {
+    const { beforeCollapse } = props;
+    if (!beforeCollapse) {
+      handleChange(name);
+      return;
+    }
+    const shouldChange = beforeCollapse(name);
+    const isPromiseOrBool = [
+      shared.isPromise(shouldChange),
+      types.isBoolean(shouldChange)
+    ].includes(true);
+    if (!isPromiseOrBool) {
+      error.throwError(SCOPE, "beforeCollapse must return type `Promise<boolean>` or `boolean`");
+    }
+    if (shared.isPromise(shouldChange)) {
+      shouldChange.then((result) => {
+        if (result !== false) {
+          handleChange(name);
+        }
+      }).catch((e) => {
+        error.debugWarn(SCOPE, `some error occurred: ${e}`);
+      });
+    } else if (shouldChange) {
+      handleChange(name);
+    }
+  };
+  vue.watch(() => props.modelValue, () => activeNames.value = lodashUnified.castArray(props.modelValue), { deep: true });
+  vue.provide(constants.collapseContextKey, {
+    activeNames,
+    handleItemClick
+  });
+  return {
+    activeNames,
+    setActiveNames
+  };
+};
+const useCollapseDOM = (props) => {
+  const ns = index.useNamespace("collapse");
+  const rootKls = vue.computed(() => [
+    ns.b(),
+    ns.b(`icon-position-${props.expandIconPosition}`)
+  ]);
+  return {
+    rootKls
+  };
+};
+
+exports.useCollapse = useCollapse;
+exports.useCollapseDOM = useCollapseDOM;
+//# sourceMappingURL=use-collapse.js.map