BI-73305 fix: single销毁的时候title没有移除

src/base/single/single.js

@@ -96,7 +96,7 @@ BI.Single = BI.inherit(BI.Widget, {
                     clearTimeout(self.showTimeout);
                     self.showTimeout = null;
                 }
-                if(BI.isNull(self.hideTimeout)) {
+                if (BI.isNull(self.hideTimeout)) {
                     self.hideTimeout = BI.delay(function () {
                         if (BI.isNotNull(self.hideTimeout)) {
                             self._hideTooltip();
@@ -176,7 +176,7 @@ BI.Single = BI.inherit(BI.Widget, {
 
     getTitle: function () {
         var title = this.options.title;
-        if(BI.isFunction(title)) {
+        if (BI.isFunction(title)) {
             return title();
         }
         return title;
@@ -184,7 +184,7 @@ BI.Single = BI.inherit(BI.Widget, {
 
     getWarningTitle: function () {
         var title = this.options.warningTitle;
-        if(BI.isFunction(title)) {
+        if (BI.isFunction(title)) {
             return title();
         }
         return title;
@@ -200,12 +200,11 @@ BI.Single = BI.inherit(BI.Widget, {
         return this.options.value;
     },
 
-    _unMount: function () {
+    destroyed: function () {
-        BI.Single.superclass._unMount.apply(this, arguments);
+        if (BI.isNotNull(this.showTimeout)) {
-        if(BI.isNotNull(this.showTimeout)) {
             clearTimeout(this.showTimeout);
             this.showTimeout = null;
         }
         BI.Tooltips.remove(this.getName());
-    }
+    },
 });

src/core/widget.js

@@ -486,6 +486,7 @@
         destroy: function () {
             this.__d();
             this.element.destroy();
+            this.fireEvent(BI.Events.UNMOUNT);
             this.fireEvent(BI.Events.DESTROY);
             this._purgeRef();
             this.purgeListeners();