app.directive('loading', function() {
    return {
        restrict: 'E',
        transclude: true,
        template: '<div ng-show="loading" class="loading" id="allDiv"  style="position:fixed; top:0px; left:0px; width:100%; height:100%; display:none; background-color: rgba(0,0,0,0.5); z-index:99999;">' +
            '<div style="vertical-align: middle;width:340px; border-radius: 2px;height:40px;background:#fff; position: absolute; top:50%; left:50%; margin-top: -50px; margin-left:-50px;"><div style="vertical-align: middle;width:60px;float:left; height:40px;margin-top:-10px; "><img alt="" src="assets/images/cmdb/loading.gif" style="vertical-align: middle;width:60px; height:60px; position: absolute; "/></div><div  style="vertical-align: middle;width:280px; height:40px; float: right;"><div style="font-size:14px;padding-top:10px;padding-bottom:10px">正在努力加载中，请暂时不要离开此界面...</div></div></div></div>',
        link: function(scope, element, attr) {
            scope.$watch('loading', function(val) {
                if (val) {
                    document.getElementById("allDiv").style.display = "block";
                } else {
                    document.getElementById("allDiv").style.display = 'none';
                }
            });
        }
    }
});