Pull request #1617: REPORT-44591 重新设计单选下拉树的valueFormatter，存在o.valueFormatter时优先使用

Merge in VISUAL/fineui from ~TELLER/fineui:bugfix to master

* commit '2aef70b44820f997ba5fa5d20e70f17ac1bc917c':
  REPORT-44591 fix: 重新设计单选下拉树的valueFormatter，存在o.valueFormatter时优先使用

src/widget/multilayerselecttree/multilayerselecttree.trigger.js

@@ -7,9 +7,6 @@ BI.MultiLayerSelectTreeTrigger = BI.inherit(BI.Trigger, {
         return {
             extraCls: "bi-multi-layer-select-tree-trigger bi-border bi-focus-shadow bi-border-radius",
             height: 24,
-            valueFormatter: function (v) {
-                return v;
-            },
             itemsCreator: BI.emptyFn,
             watermark: BI.i18nText("BI-Basic_Search"),
             allowSearchValue: false,
@@ -202,13 +199,19 @@ BI.MultiLayerSelectTreeTrigger = BI.inherit(BI.Trigger, {
 
     _digest: function (v) {
         var o = this.options;
-        if(o.itemsCreator === BI.emptyFn) {
+        if (BI.isFunction(o.valueFormatter)) {
+            return o.valueFormatter(v);
+        }
+
+        if (o.itemsCreator === BI.emptyFn) {
             var result = BI.find(o.items, function (i, item) {
                 return item.value === v;
             });
+
             return BI.isNotNull(result) ? result.text : o.text;
         }
-        return o.valueFormatter(v);
+
+        return v;
     },
 
     _getShowText: function () {

src/widget/multilayersingletree/multilayersingletree.trigger.js

@@ -7,9 +7,6 @@ BI.MultiLayerSingleTreeTrigger = BI.inherit(BI.Trigger, {
         return {
             extraCls: "bi-multi-layer-single-tree-trigger bi-border bi-focus-shadow bi-border-radius",
             height: 24,
-            valueFormatter: function (v) {
-                return v;
-            },
             itemsCreator: BI.emptyFn,
             watermark: BI.i18nText("BI-Basic_Search"),
             allowSearchValue: false,
@@ -202,13 +199,20 @@ BI.MultiLayerSingleTreeTrigger = BI.inherit(BI.Trigger, {
 
     _digest: function (v) {
         var o = this.options;
-        if(o.itemsCreator === BI.emptyFn) {
+
+        if (BI.isFunction(o.valueFormatter)) {
+            return o.valueFormatter(v);
+        }
+
+        if (o.itemsCreator === BI.emptyFn) {
             var result = BI.find(o.items, function (i, item) {
                 return item.value === v;
             });
+
             return BI.isNotNull(result) ? result.text : o.text;
         }
-        return o.valueFormatter(v);
+
+        return v;
 
     },