From 3ed2339a6d75abbd6ccf723b6eaa762f9921409e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=97=A0=E6=9C=A8?= <netfan@foxmail.com>
Date: Sat, 29 May 2021 23:08:10 +0800
Subject: [PATCH] fix(tree): support defaultExpandAll prop
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

defaultExpandLevel已去除-1的行为定义，由defaultExpandAll代替。
---
 src/components/Tree/src/Tree.vue | 7 +++----
 src/components/Tree/src/props.ts | 1 +
 src/views/demo/tree/index.vue    | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/components/Tree/src/Tree.vue b/src/components/Tree/src/Tree.vue
index 2bae83ffb..fdacd823c 100644
--- a/src/components/Tree/src/Tree.vue
+++ b/src/components/Tree/src/Tree.vue
@@ -211,12 +211,11 @@
       });
 
       onMounted(() => {
-        if (props.defaultExpandLevel === '') return;
         const level = parseInt(props.defaultExpandLevel);
-        if (level === -1) {
-          expandAll(true);
-        } else if (level > 0) {
+        if (level > 0) {
           state.expandedKeys = filterByLevel(level);
+        } else if (props.defaultExpandAll) {
+          expandAll(true);
         }
       });
 
diff --git a/src/components/Tree/src/props.ts b/src/components/Tree/src/props.ts
index 593230676..c399b2c4d 100644
--- a/src/components/Tree/src/props.ts
+++ b/src/components/Tree/src/props.ts
@@ -27,6 +27,7 @@ export const basicProps = {
     type: [String, Number] as PropType<string | number>,
     default: '',
   },
+  defaultExpandAll: propTypes.bool.def(false),
 
   replaceFields: {
     type: Object as PropType<ReplaceFields>,
diff --git a/src/views/demo/tree/index.vue b/src/views/demo/tree/index.vue
index 7d3f5aa95..7368c1108 100644
--- a/src/views/demo/tree/index.vue
+++ b/src/views/demo/tree/index.vue
@@ -13,7 +13,7 @@
         title="可勾选，默认全部展开"
         :checkable="true"
         class="w-1/3 mx-4"
-        defaultExpandLevel="-1"
+        defaultExpandAll
         @check="handleCheck"
       />