Transfer add new prop reverseOperation

src/components/transfer/operation.vue

@@ -1,11 +1,21 @@
 <template>
     <div :class="prefixCls + '-operation'">
-        <i-button type="primary" size="small" :disabled="!rightActive" @click.native="moveToLeft">
-            <Icon type="ios-arrow-back"></Icon> <span>{{ operations[0] }}</span>
-        </i-button>
-        <i-button type="primary" size="small" :disabled="!leftActive" @click.native="moveToRight">
-            <span>{{ operations[1] }}</span> <Icon type="ios-arrow-forward"></Icon>
-        </i-button>
+        <template v-if="reverseOperation">
+            <i-button type="primary" size="small" :disabled="!leftActive" @click.native="moveToRight">
+                <span>{{ operations[1] }}</span> <Icon type="ios-arrow-forward"></Icon>
+            </i-button>
+            <i-button type="primary" size="small" :disabled="!rightActive" @click.native="moveToLeft">
+                <Icon type="ios-arrow-back"></Icon> <span>{{ operations[0] }}</span>
+            </i-button>
+        </template>
+        <template v-else>
+            <i-button type="primary" size="small" :disabled="!rightActive" @click.native="moveToLeft">
+                <Icon type="ios-arrow-back"></Icon> <span>{{ operations[0] }}</span>
+            </i-button>
+            <i-button type="primary" size="small" :disabled="!leftActive" @click.native="moveToRight">
+                <span>{{ operations[1] }}</span> <Icon type="ios-arrow-forward"></Icon>
+            </i-button>
+        </template>
     </div>
 </template>
 <script>
@@ -19,7 +29,8 @@
             prefixCls: String,
             operations: Array,
             leftActive: Boolean,
-            rightActive: Boolean
+            rightActive: Boolean,
+            reverseOperation: Boolean
         },
         methods: {
             moveToLeft () {

src/components/transfer/transfer.vue

@@ -57,7 +57,8 @@
                         prefixCls: this.prefixCls,
                         operations: this.operations,
                         leftActive: this.leftValidKeysCount > 0,
-                        rightActive: this.rightValidKeysCount > 0
+                        rightActive: this.rightValidKeysCount > 0,
+                        reverseOperation: this.reverseOperation
                     }
                 }),
 
@@ -138,6 +139,12 @@
             },
             notFoundText: {
                 type: String
+            },
+            // 4.2.0
+            // 反转两个按钮
+            reverseOperation: {
+                type: Boolean,
+                default: false
             }
         },
         data () {