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user/plugins/admin/themes/grav/app/utils/jquery-utils.js

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+import $ from 'jquery';
+import getSlug from 'speakingurl';
+
+// jQuery no parents filter
+$.expr[':']['noparents'] = $.expr.createPseudo((text) => (element) => $(element).parents(text).length < 1);
+
+// Slugify
+// CommonJS and ES6 version of https://github.com/madflow/jquery-slugify
+$.fn.slugify = (source, options) => {
+    return this.each((element) => {
+        let target = $(element);
+        let source = $(source);
+
+        target.on('keyup change', () => {
+            target.data('locked', target.val() !== '' && target.val() !== undefined);
+        });
+
+        source.on('keyup change', () => {
+            if (target.data('locked') === true) { return true; }
+
+            let isInput = target.is('input') || target.is('textarea');
+            target[isInput ? 'val' : 'text']($.slugify(source.val(), options));
+        });
+    });
+};
+
+// Static method.
+$.slugify = (sourceString, options) => {
+    options = $.extend({}, $.slugify.options, options);
+    options.lang = options.lang || $('html').prop('lang');
+
+    if (typeof options.preSlug === 'function') {
+        sourceString = options.preSlug(sourceString);
+    }
+
+    sourceString = options.slugFunc(sourceString, options);
+
+    if (typeof options.postSlug === 'function') {
+        sourceString = options.postSlug(sourceString);
+    }
+
+    return sourceString;
+};
+
+// Default plugin options
+$.slugify.options = {
+    preSlug: null,
+    postSlug: null,
+    slugFunc: (input, opts) => getSlug(input, opts)
+};