angular-cn/public/resources/js/directives/announcement-bar.js

73 lines
1.9 KiB
JavaScript

/*eslint no-unused-vars: "angularIO" */
/*
* Announcement Bar Banner Directive
*
* A rotating announcement banners used to display
* important updates and news.
*/
angularIO.directive('announcementBar', ['$interval', function($interval) {
return {
restrict: 'E',
scope: {},
transclude: true,
replace: true,
template:
'<div class="announcement-bar">' +
'<div class="announcement-bar-slides" ng-transclude></div>' +
'<nav class="announcement-bar-nav">'+
'<button ng-class="{ selected: currentSlide === key }" ng-repeat="(key, slide) in slides" ng-click="changeSlide($event, key)">{{key}}</button>' +
'</nav>' +
'</div>',
link: function(scope, element, attrs) {
// REGISTER ELEMENTS
scope.slides = angular.element(element[0].getElementsByClassName('announcement-bar-slide'));
var slideLenth = scope.slides.length;
// SHOW FIRST SLIDE
scope.currentSlide = 0;
angular.element(scope.slides[0]).addClass('is-visible');
/*
* Change Slide Using Nav
*
*/
scope.changeSlide = function(event, slideNum) {
// CANCEL TIMEOUT AND CHANGE SLIDE
$interval.cancel(scope.timeoutId)
scope.slides.removeClass('is-visible');
angular.element(scope.slides[slideNum]).addClass('is-visible');
scope.currentSlide = slideNum;
};
/*
* Start Slideshow Cyle
*
*/
scope.timeoutId = $interval(function() {
// INCREMENT
scope.currentSlide = scope.currentSlide + 1;
// HIDE ALL SLIDES
scope.slides.removeClass('is-visible');
// RESET ON LAST SLIDE
if((scope.currentSlide) > (slideLenth - 1)) {
scope.currentSlide = 0;
}
// SHOW SLIDE
angular.element(scope.slides[scope.currentSlide]).addClass('is-visible');
}, 5000);
}
};
}]);