From 81b0e756da70de31129c9e9493f7a5f8c7372c8a Mon Sep 17 00:00:00 2001
From: bindoon <bindoon@sina.com>
Date: Tue, 8 Oct 2019 16:37:55 +0800
Subject: [PATCH] fix(Select): should not del disabled item with backspace. fix
 #1196

---
 src/select/select.jsx     |  9 ++++++++-
 test/select/index-spec.js | 19 +++++++++++++++++++
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/src/select/select.jsx b/src/select/select.jsx
index 9a45c0ec56..79a95873ab 100644
--- a/src/select/select.jsx
+++ b/src/select/select.jsx
@@ -567,7 +567,14 @@ class Select extends Base {
             case KEYCODE.BACKSPACE:
                 if ((mode === 'multiple' && showSearch) || mode === 'tag') {
                     // 在多选并且有搜索的情况下，删除最后一个 tag
-                    this.handleDeleteTag(e);
+                    const valueDS = this.valueDataSource.valueDS;
+                    if (
+                        valueDS &&
+                        valueDS.length &&
+                        !valueDS[valueDS.length - 1].disabled
+                    ) {
+                        this.handleDeleteTag(e);
+                    }
                 } else if (
                     mode === 'single' &&
                     hasClear &&
diff --git a/test/select/index-spec.js b/test/select/index-spec.js
index 8037b4584d..23e7dedafa 100644
--- a/test/select/index-spec.js
+++ b/test/select/index-spec.js
@@ -437,6 +437,25 @@ describe('Select', () => {
         wrapper.find('div.next-tag .next-tag-close-btn').simulate('click');
     });
 
+    it('should not delete disabled item with BACKSPACE', done => {
+        wrapper.setProps({
+            mode: 'tag',
+            dataSource:  [{value: '10001', label: 'Lucy King'}, {value: '10003', label: 'Tom Cat', disabled: true}],
+            value: ['10001', '10003'],
+            onChange: function(value) {
+                assert(value.length === 1);
+                done();
+            },
+        });
+
+        wrapper.find('input').simulate('keydown', {
+            key: 'backSpace',
+            keyCode: 8,
+        });
+
+        wrapper.find('div.next-tag .next-tag-close-btn').first().simulate('click');
+    });
+    
     it('should support mode=tag with visible=false', done => {
         wrapper.setProps({
             mode: 'tag',