Pull request #2674: 无JIRA任务 validatationChecker支持promise

Merge in VISUAL/fineui from ~GUY/fineui:master to master

* commit 'fff0cc07dfd95110888086ff41d55e210b9b30f1':
  update
  feature: checker

src/base/single/input/input.js

@@ -206,14 +206,29 @@ BI.Input = BI.inherit(BI.Single, {
         this._lastValue = this.getValue();
     },
 
-    _checkValidationOnValueChange: function () {
+    _checkValidationOnValueChange: function (callback) {
-        var o = this.options;
+        var self = this, o = this.options;
         var v = this.getValue();
-        this.setValid(
+        if (o.allowBlank === true && BI.trim(v) == "") {
-            (o.allowBlank === true && BI.trim(v) == "") || (
+            this.setValid(true);
-                BI.isNotEmptyString(BI.trim(v)) && o.validationChecker.apply(this, [BI.trim(v)]) !== false
+            callback && callback();
-            )
+            return;
-        );
+        }
+        if (BI.trim(v) == "") {
+            this.setValid(false);
+            callback && callback();
+            return;
+        }
+        var checker = o.validationChecker.apply(this, [BI.trim(v)]);
+        if (checker instanceof Promise) {
+            checker.then(function (validate) {
+                self.setValid(validate !== false);
+                callback && callback();
+            })
+        } else {
+            this.setValid(checker !== false);
+            callback && callback();
+        }
     },
 
     focus: function () {
@@ -245,14 +260,16 @@ BI.Input = BI.inherit(BI.Single, {
     },
 
     setValue: function (textValue) {
+        var self = this;
         this.element.val(textValue);
-        BI.nextTick(BI.bind(function () {
+        BI.nextTick(function () {
-            this._checkValidationOnValueChange();
+            self._checkValidationOnValueChange(function () {
-            this._defaultState();
+                self._defaultState();
-            if (this.isValid()) {
+                if (self.isValid()) {
-                this._lastValidValue = this._lastSubmitValue = this.getValue();
+                    self._lastValidValue = self._lastSubmitValue = self.getValue();
                 }
-        }, this));
+            });
+        });
     },
 
     getValue: function () {