From 148b6fe476e35e9e8db448d6dc73d57a3b23e800 Mon Sep 17 00:00:00 2001
From: Florent Gallaire <fgallaire@gmail.com>
Date: Mon, 11 Nov 2013 02:16:50 +0100
Subject: [PATCH] DRY url.replace().

Automatically disable WebSocket when the URL begins with 'http'.

Update the README with the new 'http' url syntax.

Update the clock example with the new 'http' url syntax.
---
 README.md                              |  5 ++++-
 examples/clock/src/toppage_handler.erl | 17 +++++++++++------
 priv/bullet.js                         | 19 +++++++++++++------
 3 files changed, 28 insertions(+), 13 deletions(-)

diff --git a/README.md b/README.md
index 8822c68..e8ab736 100644
--- a/README.md
+++ b/README.md
@@ -114,9 +114,12 @@ $(document).ready(function(){
 });
 ```
 
-Always use the WebSocket (ws:) form for your bullet URLs and Bullet
+Use the WebSocket (ws:) form for your bullet URLs and Bullet
 will change the URL as needed for non-WebSocket transports.
 
+Use the standard (http:) form for your bullet URLs and Bullet
+will only try non-WebSocket transports.
+
 The `$.bullet` function takes an optional second 'options' object.
 The following properties are supported:
 
diff --git a/examples/clock/src/toppage_handler.erl b/examples/clock/src/toppage_handler.erl
index 71512d3..be52be2 100644
--- a/examples/clock/src/toppage_handler.erl
+++ b/examples/clock/src/toppage_handler.erl
@@ -24,6 +24,10 @@ handle(Req, State) ->
 		Current time (best source): <span id=\"time_best\">unknown</span>
 		<span></span><span id=\"status_best\">unknown</span>
 		<button id=\"send_best\">Send Time</button></p>
+	<p><input type=\"checkbox\" checked=\"yes\" id=\"enable_best_nows\"></input>
+		Current time (best source non-websocket): <span id=\"time_best_nows\">unknown</span>
+		<span></span><span id=\"status_best_nows\">unknown</span>
+		<button id=\"send_best_nows\">Send Time</button></p>
 	<p><input type=\"checkbox\" checked=\"yes\" id=\"enable_websocket\"></input>
 		Current time (websocket only): <span id=\"time_websocket\">unknown</span>
 		<span></span><span id=\"status_websocket\">unknown</span>
@@ -44,10 +48,10 @@ handle(Req, State) ->
 	<script type=\"text/javascript\">
 // <![CDATA[
 $(document).ready(function(){
-	var start = function(name, options) {
+	var start = function(name, url, options) {
 		var bullet;
 		var open = function(){
-			bullet = $.bullet('ws://localhost:8080/bullet', options);
+			bullet = $.bullet(url, options);
 			bullet.onopen = function(){
 				$('#status_' + name).text('online');
 			};
@@ -81,12 +85,13 @@ $(document).ready(function(){
 		});
 	};
 
-	start('best', {});
-	start('websocket', {'disableEventSource': true,
+	start('best', 'ws://localhost:8080/bullet', {});
+	start('best_nows', 'http://localhost:8080/bullet', {});
+	start('websocket', 'ws://localhost:8080/bullet', {'disableEventSource': true,
 		'disableXHRPolling': true});
-	start('eventsource', {'disableWebSocket': true,
+	start('eventsource', 'ws://localhost:8080/bullet', {'disableWebSocket': true,
 		'disableXHRPolling': true});
-	start('polling', {'disableWebSocket': true,
+	start('polling', 'ws://localhost:8080/bullet', {'disableWebSocket': true,
 		'disableEventSource': true});
 });
 // ]]>
diff --git a/priv/bullet.js b/priv/bullet.js
index 26a1fc5..162093b 100644
--- a/priv/bullet.js
+++ b/priv/bullet.js
@@ -37,6 +37,16 @@
 	var OPEN = 1;
 	var CLOSING = 2;
 	var CLOSED = 3;
+	var httpURL = url.replace('ws:', 'http:').replace('wss:', 'https:');
+
+	if (url == httpURL) {
+		if (options == undefined) {
+			var options = {'disableWebSocket': true};
+		}
+		else {
+			options.disableWebSocket = true;
+		}
+	}
 
 	var xhrSend = function(data){
 		/**
@@ -47,13 +57,12 @@
 			return false;
 		}
 
-		var sendUrl = url.replace('ws:', 'http:').replace('wss:', 'https:');
 		var self = this;
 		$.ajax({
 			async: false,
 			cache: false,
 			type: 'POST',
-			url: sendUrl,
+			url: httpURL,
 			data: data,
 			dataType: 'text',
 			contentType: 'application/x-www-form-urlencoded; charset=utf-8',
@@ -106,8 +115,7 @@
 				return false;
 			}
 
-			var eventsourceURL = url.replace('ws:', 'http:').replace('wss:', 'https:');
-			var source = new window.EventSource(eventsourceURL);
+			var source = new window.EventSource(httpURL);
 
 			source.onopen = function () {
 				fake.readyState = OPEN;
@@ -165,12 +173,11 @@
 			};
 
 			function poll(){
-				var fakeurl = url.replace('ws:', 'http:').replace('wss:', 'https:');
 
 				xhr = $.ajax({
 					type: 'GET',
 					cache: false,
-					url: fakeurl,
+					url: httpURL,
 					dataType: 'text',
 					data: {},
 					headers: {'X-Socket-Transport': 'xhrPolling'},