<button ng-class="state.className" ng-disabled="{{state.disabled}}">
    <span ng-if="loading" class="ant-btn-loading-icon">
        <span class="anticon anticon-loading anticon-spin">
            <es-icon type="LoadingOutlined"></es-icon>
            </span>
    </span>
    <span ng-transclude></span>
</button>