HTML:
HTML:
<form name="form">
<input type="file" ng-model="document" valid-file required>
<input type="submit" value="{{ !form.$valid && 'invalid' || 'valid' }}">
</form>
<form name="form">
<input tHTML:
HTML:
<form name="form">
<input type="file" ng-model="document" valid-file required>
<input type="submit" value="{{ !form.$valid && 'invalid' || 'valid' }}">
</form>
<form name="form">
<input t