Problem with reverting to blank state. Fixes telerik#638

Author: ggkrustev

src/kendo.autocomplete.js

@@ -265,6 +265,7 @@ var __meta__ = {
             if (!length || length >= options.minLength) {
                 that._open = true;
 
+                that.listView.filter(true);
                 that._filterSource({
                     value: ignoreCase ? word.toLowerCase() : word,
                     operator: options.filter,
@@ -419,6 +420,12 @@ var __meta__ = {
 
             that._angularItems("compile");
 
+            //reset list value
+            that.listView.value([]);
+            that.listView.focus(-1);
+
+            that.listView.filter(false);
+
             that._calculateGroupPadding(that._height(length));
 
             if (popup.visible()) {
@@ -454,13 +461,15 @@ var __meta__ = {
             }
 
             that._makeUnselectable();
-
             that._hideBusy();
+
             that.trigger("dataBound");
         },
 
         _listChange: function() {
-            this._selectValue(this.listView.selectedDataItems()[0]);
+            if (!this.listView.filter()) {
+                this._selectValue(this.listView.selectedDataItems()[0]);
+            }
         },
 
         _selectValue: function(dataItem) {

src/kendo.list.js

@@ -1325,8 +1325,12 @@ var __meta__ = {
             return result;
         },
 
-        filter: function(isFilter) {
-            this._filtered = isFilter;
+        filter: function(filter) {
+            if (filter === undefined) {
+                return this._filtered;
+            }
+
+            this._filtered = filter;
         },
 
         select: function(indices) {

tests/autocomplete/filtering.js

@@ -275,4 +275,54 @@ test("select item after filtering", function() {
     equal(autocomplete.value(), "foo2");
 });
 
+test("AutoComplete does not revert input value on search", function() {
+    var autocomplete = new AutoComplete(input, {
+        dataTextField: "text",
+        dataSource: {
+            data: [
+                {text: "foo", value: "1", parent: 1},
+                {text: "foo1", value: "2", parent: 1},
+                {text: "foo2", value: "3", parent: 1},
+                {text: "foo3", value: "4", parent: 2},
+                {text: "foo4", value: "5", parent: 2},
+                {text: "foo5", value: "6", parent: 3},
+            ]
+        },
+        filter: "contains"
+    });
+
+    autocomplete.search("foo1");
+    autocomplete.ul.children(":first").click();
+
+    autocomplete.element.val("fo");
+    autocomplete.search("fo");
+
+    equal(autocomplete.value(), "fo");
+});
+
+test("AutoComplete resets list value on refresh", function() {
+    var autocomplete = new AutoComplete(input, {
+        dataTextField: "text",
+        dataSource: {
+            data: [
+                {text: "foo", value: "1", parent: 1},
+                {text: "foo1", value: "2", parent: 1},
+                {text: "foo2", value: "3", parent: 1},
+                {text: "foo3", value: "4", parent: 2},
+                {text: "foo4", value: "5", parent: 2},
+                {text: "foo5", value: "6", parent: 3},
+            ]
+        },
+        filter: "contains"
+    });
+
+    autocomplete.search("foo1");
+    autocomplete.ul.children(":first").click();
+
+    autocomplete.element.val("fo");
+    autocomplete.search("fo");
+
+    equal(autocomplete.listView.value().length, 0);
+});
+
 }());