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.svn/pristine/92/920dd37ef1acb3c5e0e826e5991fd40c45521d92.svn-base

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+import { TreeEmits, TreeProps } from "./tree.type";
+import { computed, ComputedRef, watch } from "vue";
+import { Tree, TreeData } from "./tree";
+
+export declare type UseTree = (
+  props: TreeProps,
+  emit: TreeEmits
+) => {
+  tree: Tree;
+  nodeList: ComputedRef<TreeData[]>;
+};
+
+export const useTree: UseTree = (props: TreeProps, emit: TreeEmits) => {
+  const tree = new Tree(
+    {
+      nodeMap: new Map(),
+      originMap: new Map(),
+      replaceFields: {
+        id: "id",
+        title: "title",
+        children: "children",
+      },
+      showCheckbox: props.showCheckbox ?? false,
+      checkedKeys: props.checkedKeys ?? [],
+      expandKeys: props.expandKeys ?? [],
+      checkStrictly: props.checkStrictly ?? false,
+    },
+    props.data
+  );
+
+  const nodeList = computed(() => {
+    const nodes = tree.getData();
+    return nodes;
+  });
+
+  return {
+    tree,
+    nodeList,
+  };
+};