49 lines
1.2 KiB
JavaScript
49 lines
1.2 KiB
JavaScript
|
/**
|
||
|
|
* Service which helps set the contents of the <meta> tags (and the <title> of a page).
|
||
|
|
*/
|
||
|
|
angular.module('quay').factory('MetaService', ['$interpolate', '$timeout', function($interpolate, $timeout) {
|
||
|
|
var metaService = {};
|
||
|
|
|
||
|
|
var interpolate = function(page, expr) {
|
||
|
|
if (!expr) {
|
||
|
|
return null;
|
||
|
|
}
|
||
|
|
|
||
|
|
var inter = $interpolate(expr, true, null, true);
|
||
|
|
if (!inter) {
|
||
|
|
return expr.toString();
|
||
|
|
}
|
||
|
|
|
||
|
|
return inter(page.scope);
|
||
|
|
};
|
||
|
|
|
||
|
|
var interpolationPromise = function(page, fieldGetter) {
|
||
|
|
return new Promise(function(resolve, reject) {
|
||
|
|
if (!page || !page.$$route) {
|
||
|
|
resolve(null);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (page.scope) {
|
||
|
|
resolve(interpolate(page, fieldGetter()));
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Timeout needed because page.scope is initially undefined.
|
||
|
|
$timeout(function() {
|
||
|
|
resolve(interpolationPromise(page, fieldGetter));
|
||
|
|
}, 10);
|
||
|
|
});
|
||
|
|
};
|
||
|
|
|
||
|
|
metaService.getTitle = function(page) {
|
||
|
|
return interpolationPromise(page, () => page.$$route.title);
|
||
|
|
};
|
||
|
|
|
||
|
|
metaService.getDescription = function(page) {
|
||
|
|
return interpolationPromise(page, () => page.$$route.description);
|
||
|
|
};
|
||
|
|
|
||
|
|
return metaService;
|
||
|
|
}]);
|