Merge pull request #4536 from weidapao/fix_bug

fix(InputNumber): 解决组件InputNumber无法blur时校验的问题

src/components/input-number/input-number.vue

@@ -34,7 +34,7 @@
     </div>
 </template>
 <script>
-    import { oneOf } from '../../utils/assist';
+    import { oneOf, findComponentUpward } from '../../utils/assist';
     import Emitter from '../../mixins/emitter';
 
     const prefixCls = 'ivu-input-number';
@@ -278,6 +278,9 @@
             blur () {
                 this.focused = false;
                 this.$emit('on-blur');
+                if (!findComponentUpward(this, ['DatePicker', 'TimePicker', 'Cascader', 'Search'])) {
+                    this.dispatch('FormItem', 'on-form-blur', this.currentValue);
+                }
             },
             keyDown (e) {
                 if (e.keyCode === 38) {