1 files changed, 51 insertions, 0 deletions
diff --git a/data/js/lexer-input.js b/data/js/lexer-input.js
new file mode 100644
index 000000000..62b59650d
--- /dev/null
+++ b/data/js/lexer-input.js
@@ -0,0 +1,51 @@
+(function () {
+'use strict';
+define(['util', 'underscore', 'jquery-ui'], function (Util, _) {
+	var PrivateFunctions = {
+		switchLexer: function (lexer, baseUrl) {
+			var url = baseUrl + '/' + Util.fixedEncodeURIComponent(lexer);
+			window.location = url;
+		},
+		lexerSelected: function (event, ui) {
+			event.preventDefault();
+			var baseUrl = $(event.target).data('base-url');
+			this.switchLexer(ui.item.value, baseUrl);
+		},
+		setupAutocomplete: function (lexers) {
+			var lexerSource = [];
+			for (var key in lexers) {
+				lexerSource.push({ label: lexers[key], value: key });
+			}
+
+			$('.lexer-form input').autocomplete({
+				source: lexerSource,
+				select: _.bind(PrivateFunctions.lexerSelected, PrivateFunctions)
+			});
+		},
+		setupEvents: function () {
+			$('.lexer-form').on('submit', _.bind(function (event) {
+				event.preventDefault();
+				var input = $(event.target).find('input');
+				var lexer = input.val();
+				var baseUrl = input.data('base-url');
+				this.switchLexer(lexer, baseUrl);
+			}, this));
+
+			$('.lexer-toggle').on('click', function(event) {
+				setTimeout(function() {
+					var dropDown = $(event.target).siblings('.dropdown-menu');
+					dropDown.find('input').focus();
+				}, 0);
+			});
+		}
+	};
+	var LexerInput = {
+		initialize: function (lexers) {
+			PrivateFunctions.setupAutocomplete(lexers);
+			PrivateFunctions.setupEvents();
+		}
+	};
+
+	return LexerInput;
+});
+})();