42 lines
1.3 KiB
JavaScript
42 lines
1.3 KiB
JavaScript
/**
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* Helper code for working with angular.
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*/
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angular.module('quay').factory('AngularHelper', [function($routeProvider) {
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var helper = {};
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helper.buildConditionalLinker = function($animate, name, evaluator) {
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// Based off of a solution found here: http://stackoverflow.com/questions/20325480/angularjs-whats-the-best-practice-to-add-ngif-to-a-directive-programmatically
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return function ($scope, $element, $attr, ctrl, $transclude) {
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var block;
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var childScope;
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var roles;
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$attr.$observe(name, function (value) {
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if (evaluator($scope.$eval(value))) {
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if (!childScope) {
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childScope = $scope.$new();
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$transclude(childScope, function (clone) {
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block = {
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startNode: clone[0],
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endNode: clone[clone.length++] = document.createComment(' end ' + name + ': ' + $attr[name] + ' ')
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};
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$animate.enter(clone, $element.parent(), $element);
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});
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}
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} else {
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if (childScope) {
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childScope.$destroy();
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childScope = null;
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}
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if (block) {
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$animate.leave(getBlockElements(block));
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block = null;
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}
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}
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});
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}
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};
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return helper;
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}]);
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