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wp-content/plugins/sitepress-multilingual-cms/res/js/wpml-simple-language-selector.js

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+var WPML_Core = WPML_Core || {};
+
+WPML_Core.SimpleLanguageSelector = function () {
+	var self         = this;
+
+	var init = function () {
+        jQuery(function () {
+            self.initialize_select2();
+        });
+    };
+
+    var add_flags = function ( state ) {
+        if (!state.id) { return state.text; }
+
+        var text = state.text;
+        if (jQuery(state.element).data('status') == 'active' ) {
+            text = '<strong>&nbsp;' + text + '</strong>';
+        }
+
+        return '<img width="18" height="12" src="' + jQuery(state.element).data('flag_url') + '"/> ' + text;
+    };
+
+    self.initialize_select2 = function () {
+        jQuery('.js-simple-lang-selector-flags').wpml_select2({
+            formatResult:       add_flags,
+            formatSelection:    add_flags,
+            width:              'auto',
+            dropdownCss:        {'z-index': parseInt(jQuery('.ui-dialog').css('z-index'), 10) + 100},
+            dropdownAutoWidth:  true
+        });
+
+        var lang_selector_flags = jQuery('.js-simple-lang-selector-flags');
+
+        if (lang_selector_flags.is(':disabled')) {
+            lang_selector_flags.find('.wpml_select2-choice').addClass('button button-secondary').attr('disabled', 'true');
+        }
+	};
+
+	init();
+
+};
+
+WPML_Core.simple_language_selector = new WPML_Core.SimpleLanguageSelector();