8d88f5b6a5
closes #7826 - expose raw url value inside `{{navigation}}` helper - modify `{{url}}` helper to urlencode values and mark as HTML-safe to avoid Handlebars additional HTML-escaping
80 lines
2.3 KiB
JavaScript
80 lines
2.3 KiB
JavaScript
// ### Navigation Helper
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// `{{navigation}}`
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// Outputs navigation menu of static urls
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var _ = require('lodash'),
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hbs = require('express-hbs'),
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i18n = require('../i18n'),
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errors = require('../errors'),
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template = require('./template'),
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navigation;
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navigation = function (options) {
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/*jshint unused:false*/
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var navigationData = options.data.blog.navigation,
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currentUrl = options.data.root.relativeUrl,
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self = this,
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output,
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data;
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if (!_.isObject(navigationData) || _.isFunction(navigationData)) {
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throw new errors.IncorrectUsageError({
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message: i18n.t('warnings.helpers.navigation.invalidData')
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});
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}
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if (navigationData.filter(function (e) {
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return (_.isUndefined(e.label) || _.isUndefined(e.url));
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}).length > 0) {
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throw new errors.IncorrectUsageError({
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message: i18n.t('warnings.helpers.navigation.valuesMustBeDefined')
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});
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}
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// check for non-null string values
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if (navigationData.filter(function (e) {
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return ((!_.isNull(e.label) && !_.isString(e.label)) ||
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(!_.isNull(e.url) && !_.isString(e.url)));
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}).length > 0) {
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throw new errors.IncorrectUsageError({
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message: i18n.t('warnings.helpers.navigation.valuesMustBeString')
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});
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}
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function _slugify(label) {
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return label.toLowerCase().replace(/[^\w ]+/g, '').replace(/ +/g, '-');
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}
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// strips trailing slashes and compares urls
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function _isCurrentUrl(href, currentUrl) {
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if (!currentUrl) {
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return false;
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}
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var strippedHref = href.replace(/\/+$/, ''),
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strippedCurrentUrl = currentUrl.replace(/\/+$/, '');
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return strippedHref === strippedCurrentUrl;
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}
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// {{navigation}} should no-op if no data passed in
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if (navigationData.length === 0) {
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return new hbs.SafeString('');
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}
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output = navigationData.map(function (e) {
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var out = {};
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out.current = _isCurrentUrl(e.url, currentUrl);
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out.label = e.label;
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out.slug = _slugify(e.label);
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out.url = e.url;
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out.secure = self.secure;
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return out;
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});
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data = _.merge({}, {navigation: output});
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return template.execute('navigation', data, options);
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};
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module.exports = navigation;
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