Edit in JSFiddle

<div ng-app="app" ng-controller="Ctrl">
    <div>
        <label>field1:</label>
        <input name="field1" ng-model="value1" my-focus="focusField1" my-blur="doneEditing1()" />
        <br/>
        <label>field2:</label>
        <input name="field2" ng-model="value2" my-focus="focusField2" my-blur="doneEditing2()" />
        <br/>
        <br/> <span>{{countedValue}}</span>

        <br/>
        <br/>
        <button type="button" ng-click="focusField1=true">focus field1</button>
        <button type="button" ng-click="focusField2=true">focus field2</button>
    </div>
</div>