"Escaping from the typeahead feature in Angular-UI Bootstrap results in the input field value becoming

Having some difficulty solving a particular edge case scenario. When I select a value from the dropdown of the typeahead using either the keyboard or mouse, the ng-model in the input field is populated correctly.

However, if I type a few letters and then press the 'escape' button, the ng-model 'textFieldValue' appears to be replaced with 'undefined' by the typeahead because no value was chosen.

What would be the most effective approach to resolving this issue? Or is it considered too rare of a case?

<input type="text" ng-model="textFieldValue"
typeahead="list for list in getList($viewValue)" typeahead-editable="false">
javascriptangularjstwitter-bootstrap

Answer №1

To achieve this, utilize a temporary value for the process.

Set the temporary value as the typeahead.

<input type="text" ng-model="tempValue" typeahead="list for list in getList($viewValue) | filter:$viewValue" typeahead-editable="false" >

Monitor the tempValue for changes and decide whether to update the target value.

$scope.$watch('tempValue', function(tempValue){
      if(shouldUpdateTheTargetValue(tempValue)) {
        $scope.targetValue = tempValue;   
      }
    });

I have prepared a plunker example for you. - http://example.com/plunker

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