github-migration/rack-livereload
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John Bintz 2011-11-04 11:51:22 -04:00
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.gitignore vendored Normal file
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*.gem
.bundle
Gemfile.lock
pkg/*

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Gemfile Normal file
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source "http://rubygems.org"
# Specify your gem's dependencies in rack-livereload.gemspec
gemspec

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# A sample Guardfile
# More info at https://github.com/guard/guard#readme
guard 'rspec', :version => 2 do
watch(%r{^spec/.+_spec\.rb$})
watch(%r{^lib/(.+)\.rb$}) { |m| "spec/lib/#{m[1]}_spec.rb" }
watch('spec/spec_helper.rb') { "spec" }
# Rails example
watch(%r{^spec/.+_spec\.rb$})
watch(%r{^app/(.+)\.rb$}) { |m| "spec/#{m[1]}_spec.rb" }
watch(%r{^lib/(.+)\.rb$}) { |m| "spec/lib/#{m[1]}_spec.rb" }
watch(%r{^app/controllers/(.+)_(controller)\.rb$}) { |m| ["spec/routing/#{m[1]}_routing_spec.rb", "spec/#{m[2]}s/#{m[1]}_#{m[2]}_spec.rb", "spec/acceptance/#{m[1]}_spec.rb"] }
watch(%r{^spec/support/(.+)\.rb$}) { "spec" }
watch('spec/spec_helper.rb') { "spec" }
watch('config/routes.rb') { "spec/routing" }
watch('app/controllers/application_controller.rb') { "spec/controllers" }
# Capybara request specs
watch(%r{^app/views/(.+)/.*\.(erb|haml)$}) { |m| "spec/requests/#{m[1]}_spec.rb" }
end

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Hey, you've got [LiveReload](http://www.livereload.com/) in my [Rack](http://rack.rubyforge.org/)!
No need for browser extensions anymore! Just plug it in your middleware stack and go!
Use this with [guard-livereload](http://github.com/guard/guard-livereload) for maximum fun!
## Using in...
### Rails
In `config/initializers/development.rb`:
``` ruby
MyApp::Application.configure do
config.middleware.insert_before(Rack::Lock, Rack::LiveReload)
end
```
### config.ru/Sinatra
``` ruby
require 'rack-livereload'
use Rack::LiveReload
```
## How it works
The necessary `script` tag to bring in a vendored copy of [livereload.js](https://github.com/livereload/livereload-js) is
injected right before the closing `head` tag in any `text/html` pages that come through. The `script` tag is built in
such a way that the `HTTP_HOST` is used as the LiveReload host, so you can connect from external machines (say, to
`mycomputer:3000` instead of `localhost:3000`) and as long as the LiveReload port is accessible from the external machine,
you'll connect and be LiveReloading away!
## To-do
* Specify the `port`
* Override the `host`
* Change the reload delays
As usual, super-alpha!

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require "bundler/gem_tasks"
desc 'Update livereload.js'
task :update_livereload_js do
require 'httparty'
File.open('js/livereload.js', 'wb') { |fh|
fh.print HTTParty.get('https://raw.github.com/livereload/livereload-js/master/dist/livereload.js').body
}
end

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config.ru Normal file
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require 'sinatra'
$: << 'lib'
require 'rack/livereload'
use Rack::LiveReload
get '/' do
"<html><head><title>Hi</title></head><body>Hi</body></html>"
end
run Sinatra::Application

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js/livereload.js Normal file
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(function() {
var __customevents = {}, __protocol = {}, __connector = {}, __timer = {}, __options = {}, __reloader = {}, __livereload = {}, __startup = {};
// customevents
(function() {
var CustomEvents;
CustomEvents = {
bind: function(element, eventName, handler) {
if (element.addEventListener) {
return element.addEventListener(eventName, handler, false);
} else if (element.attachEvent) {
element[eventName] = 1;
return element.attachEvent('onpropertychange', function(event) {
if (event.propertyName === eventName) {
return handler();
}
});
} else {
throw new Error("Attempt to attach custom event " + eventName + " to something which isn't a DOMElement");
}
},
fire: function(element, eventName) {
var event;
if (element.addEventListener) {
event = document.createEvent('HTMLEvents');
event.initEvent(eventName, true, true);
return document.dispatchEvent(event);
} else if (element.attachEvent) {
if (element[eventName]) {
return element[eventName]++;
}
} else {
throw new Error("Attempt to fire custom event " + eventName + " on something which isn't a DOMElement");
}
}
};
__customevents.bind = CustomEvents.bind;
__customevents.fire = CustomEvents.fire;
}).call(this);
// protocol
(function() {
var PROTOCOL_6, PROTOCOL_7, Parser, ProtocolError;
var __indexOf = Array.prototype.indexOf || function(item) {
for (var i = 0, l = this.length; i < l; i++) {
if (this[i] === item) return i;
}
return -1;
};
__protocol.PROTOCOL_6 = PROTOCOL_6 = 'http://livereload.com/protocols/official-6';
__protocol.PROTOCOL_7 = PROTOCOL_7 = 'http://livereload.com/protocols/official-7';
__protocol.ProtocolError = ProtocolError = (function() {
function ProtocolError(reason, data) {
this.message = "LiveReload protocol error (" + reason + ") after receiving data: \"" + data + "\".";
}
return ProtocolError;
})();
__protocol.Parser = Parser = (function() {
function Parser(handlers) {
this.handlers = handlers;
this.reset();
}
Parser.prototype.reset = function() {
return this.protocol = null;
};
Parser.prototype.process = function(data) {
var command, message, options, _ref;
try {
if (!(this.protocol != null)) {
if (data.match(/^!!ver:([\d.]+)$/)) {
this.protocol = 6;
} else if (message = this._parseMessage(data, ['hello'])) {
if (!message.protocols.length) {
throw new ProtocolError("no protocols specified in handshake message");
} else if (__indexOf.call(message.protocols, PROTOCOL_7) >= 0) {
this.protocol = 7;
} else if (__indexOf.call(message.protocols, PROTOCOL_6) >= 0) {
this.protocol = 6;
} else {
throw new ProtocolError("no supported protocols found");
}
}
return this.handlers.connected(this.protocol);
} else if (this.protocol === 6) {
message = JSON.parse(data);
if (!message.length) {
throw new ProtocolError("protocol 6 messages must be arrays");
}
command = message[0], options = message[1];
if (command !== 'refresh') {
throw new ProtocolError("unknown protocol 6 command");
}
return this.handlers.message({
command: 'reload',
path: options.path,
liveCSS: (_ref = options.apply_css_live) != null ? _ref : true
});
} else {
message = this._parseMessage(data, ['reload', 'alert']);
return this.handlers.message(message);
}
} catch (e) {
if (e instanceof ProtocolError) {
return this.handlers.error(e);
} else {
throw e;
}
}
};
Parser.prototype._parseMessage = function(data, validCommands) {
var message, _ref;
try {
message = JSON.parse(data);
} catch (e) {
throw new ProtocolError('unparsable JSON', data);
}
if (!message.command) {
throw new ProtocolError('missing "command" key', data);
}
if (_ref = message.command, __indexOf.call(validCommands, _ref) < 0) {
throw new ProtocolError("invalid command '" + message.command + "', only valid commands are: " + (validCommands.join(', ')) + ")", data);
}
return message;
};
return Parser;
})();
}).call(this);
// connector
(function() {
var Connector, PROTOCOL_6, PROTOCOL_7, Parser, _ref;
var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
_ref = __protocol, Parser = _ref.Parser, PROTOCOL_6 = _ref.PROTOCOL_6, PROTOCOL_7 = _ref.PROTOCOL_7;
__connector.Connector = Connector = (function() {
function Connector(options, WebSocket, Timer, handlers) {
this.options = options;
this.WebSocket = WebSocket;
this.Timer = Timer;
this.handlers = handlers;
this._uri = "ws://" + this.options.host + ":" + this.options.port + "/livereload";
this._nextDelay = this.options.mindelay;
this._connectionDesired = false;
this.protocolParser = new Parser({
connected: __bind(function(protocol) {
this._handshakeTimeout.stop();
this._nextDelay = this.options.mindelay;
this._disconnectionReason = 'broken';
return this.handlers.connected(protocol);
}, this),
error: __bind(function(e) {
this.handlers.error(e);
return this._closeOnError();
}, this),
message: __bind(function(message) {
return this.handlers.message(message);
}, this)
});
this._handshakeTimeout = new Timer(__bind(function() {
if (!this._isSocketConnected()) {
return;
}
this._disconnectionReason = 'handshake-timeout';
return this.socket.close();
}, this));
this._reconnectTimer = new Timer(__bind(function() {
if (!this._connectionDesired) {
return;
}
return this.connect();
}, this));
this.connect();
}
Connector.prototype._isSocketConnected = function() {
return this.socket && this.socket.readyState === this.WebSocket.OPEN;
};
Connector.prototype.connect = function() {
this._connectionDesired = true;
if (this._isSocketConnected()) {
return;
}
if (this._reconnectTimer) {
clearTimeout(this._reconnectTimer);
}
this._disconnectionReason = 'cannot-connect';
this.protocolParser.reset();
this.handlers.connecting();
this.socket = new this.WebSocket(this._uri);
this.socket.onopen = __bind(function(e) {
return this._onopen(e);
}, this);
this.socket.onclose = __bind(function(e) {
return this._onclose(e);
}, this);
this.socket.onmessage = __bind(function(e) {
return this._onmessage(e);
}, this);
return this.socket.onerror = __bind(function(e) {
return this._onerror(e);
}, this);
};
Connector.prototype.disconnect = function() {
this._connectionDesired = false;
this._reconnectTimer.stop();
if (!this._isSocketConnected()) {
return;
}
this._disconnectionReason = 'manual';
return this.socket.close();
};
Connector.prototype._scheduleReconnection = function() {
if (!this._connectionDesired) {
return;
}
if (!this._reconnectTimer.running) {
this._reconnectTimer.start(this._nextDelay);
return this._nextDelay = Math.min(this.options.maxdelay, this._nextDelay * 2);
}
};
Connector.prototype.sendCommand = function(command) {
if (this.protocol == null) {
return;
}
return this._sendCommand(command);
};
Connector.prototype._sendCommand = function(command) {
return this.socket.send(JSON.stringify(command));
};
Connector.prototype._closeOnError = function() {
this._handshakeTimeout.stop();
this._disconnectionReason = 'error';
return this.socket.close();
};
Connector.prototype._onopen = function(e) {
this.handlers.socketConnected();
this._disconnectionReason = 'handshake-failed';
this._sendCommand({
command: 'hello',
protocols: [PROTOCOL_6, PROTOCOL_7]
});
return this._handshakeTimeout.start(this.options.handshake_timeout);
};
Connector.prototype._onclose = function(e) {
this.handlers.disconnected(this._disconnectionReason, this._nextDelay);
return this._scheduleReconnection();
};
Connector.prototype._onerror = function(e) {};
Connector.prototype._onmessage = function(e) {
return this.protocolParser.process(e.data);
};
return Connector;
})();
}).call(this);
// timer
(function() {
var Timer;
var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
__timer.Timer = Timer = (function() {
function Timer(func) {
this.func = func;
this.running = false;
this.id = null;
this._handler = __bind(function() {
this.running = false;
this.id = null;
return this.func();
}, this);
}
Timer.prototype.start = function(timeout) {
if (this.running) {
clearTimeout(this.id);
}
this.id = setTimeout(this._handler, timeout);
return this.running = true;
};
Timer.prototype.stop = function() {
if (this.running) {
clearTimeout(this.id);
this.running = false;
return this.id = null;
}
};
return Timer;
})();
Timer.start = function(timeout, func) {
return setTimeout(func, timeout);
};
}).call(this);
// options
(function() {
var Options;
__options.Options = Options = (function() {
function Options() {
this.host = null;
this.port = 35729;
this.snipver = null;
this.ext = null;
this.extver = null;
this.mindelay = 1000;
this.maxdelay = 60000;
this.handshake_timeout = 5000;
}
Options.prototype.set = function(name, value) {
switch (typeof this[name]) {
case 'undefined':
break;
case 'number':
return this[name] = +value;
default:
return this[name] = value;
}
};
return Options;
})();
Options.extract = function(document) {
var element, keyAndValue, m, mm, options, pair, src, _i, _j, _len, _len2, _ref, _ref2;
_ref = document.getElementsByTagName('script');
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
element = _ref[_i];
if ((src = element.src) && (m = src.match(/^[^:]+:\/\/(.*)\/z?livereload\.js(?:\?(.*))?$/))) {
options = new Options();
if (mm = m[1].match(/^([^\/:]+)(?::(\d+))?$/)) {
options.host = mm[1];
if (mm[2]) {
options.port = parseInt(mm[2], 10);
}
}
if (m[2]) {
_ref2 = m[2].split('&');
for (_j = 0, _len2 = _ref2.length; _j < _len2; _j++) {
pair = _ref2[_j];
if ((keyAndValue = pair.split('=')).length > 1) {
options.set(keyAndValue[0].replace(/-/g, '_'), keyAndValue.slice(1).join('='));
}
}
}
return options;
}
}
return null;
};
}).call(this);
// reloader
(function() {
var IMAGE_STYLES, Reloader, numberOfMatchingSegments, pathFromUrl, pathsMatch, pickBestMatch, splitUrl;
var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
splitUrl = function(url) {
var hash, index, params;
if ((index = url.indexOf('#')) >= 0) {
hash = url.slice(index);
url = url.slice(0, index);
} else {
hash = '';
}
if ((index = url.indexOf('?')) >= 0) {
params = url.slice(index);
url = url.slice(0, index);
} else {
params = '';
}
return {
url: url,
params: params,
hash: hash
};
};
pathFromUrl = function(url) {
var path;
url = splitUrl(url).url;
if (url.indexOf('file://') === 0) {
path = url.replace(/^file:\/\/(localhost)?/, '');
} else {
path = url.replace(/^([^:]+:)?\/\/([^:\/]+)(:\d*)?\//, '/');
}
return decodeURIComponent(path);
};
pickBestMatch = function(path, objects, pathFunc) {
var bestMatch, object, score, _i, _len;
bestMatch = {
score: 0
};
for (_i = 0, _len = objects.length; _i < _len; _i++) {
object = objects[_i];
score = numberOfMatchingSegments(path, pathFunc(object));
if (score > bestMatch.score) {
bestMatch = {
object: object,
score: score
};
}
}
if (bestMatch.score > 0) {
return bestMatch;
} else {
return null;
}
};
numberOfMatchingSegments = function(path1, path2) {
var comps1, comps2, eqCount, len;
path1 = path1.replace(/^\/+/, '').toLowerCase();
path2 = path2.replace(/^\/+/, '').toLowerCase();
if (path1 === path2) {
return 10000;
}
comps1 = path1.split('/').reverse();
comps2 = path2.split('/').reverse();
len = Math.min(comps1.length, comps2.length);
eqCount = 0;
while (eqCount < len && comps1[eqCount] === comps2[eqCount]) {
++eqCount;
}
return eqCount;
};
pathsMatch = function(path1, path2) {
return numberOfMatchingSegments(path1, path2) > 0;
};
IMAGE_STYLES = [
{
selector: 'background',
styleNames: ['backgroundImage']
}, {
selector: 'border',
styleNames: ['borderImage', 'webkitBorderImage', 'MozBorderImage']
}
];
__reloader.Reloader = Reloader = (function() {
function Reloader(window, console, Timer) {
this.window = window;
this.console = console;
this.Timer = Timer;
this.document = this.window.document;
this.stylesheetGracePeriod = 200;
this.importCacheWaitPeriod = 200;
}
Reloader.prototype.reload = function(path, options) {
if (options.liveCSS) {
if (path.match(/\.css$/i)) {
if (this.reloadStylesheet(path)) {
return;
}
}
if (path.match(/\.less$/i) && this.window.less && this.window.less.refresh) {
this.window.less.refresh(true);
return;
}
}
if (options.liveImg) {
if (path.match(/\.(jpe?g|png|gif)$/i)) {
this.reloadImages(path);
return;
}
}
return this.reloadPage();
};
Reloader.prototype.reloadPage = function() {
return this.window.document.location.reload();
};
Reloader.prototype.reloadImages = function(path) {
var expando, img, selector, styleNames, styleSheet, _i, _j, _k, _l, _len, _len2, _len3, _len4, _ref, _ref2, _ref3, _ref4, _results;
expando = this.generateUniqueString();
_ref = this.document.images;
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
img = _ref[_i];
if (pathsMatch(path, pathFromUrl(img.src))) {
img.src = this.generateCacheBustUrl(img.src, expando);
}
}
if (this.document.querySelectorAll) {
for (_j = 0, _len2 = IMAGE_STYLES.length; _j < _len2; _j++) {
_ref2 = IMAGE_STYLES[_j], selector = _ref2.selector, styleNames = _ref2.styleNames;
_ref3 = this.document.querySelectorAll("[style*=" + selector + "]");
for (_k = 0, _len3 = _ref3.length; _k < _len3; _k++) {
img = _ref3[_k];
this.reloadStyleImages(img.style, styleNames, path, expando);
}
}
}
if (this.document.styleSheets) {
_ref4 = this.document.styleSheets;
_results = [];
for (_l = 0, _len4 = _ref4.length; _l < _len4; _l++) {
styleSheet = _ref4[_l];
_results.push(this.reloadStylesheetImages(styleSheet, path, expando));
}
return _results;
}
};
Reloader.prototype.reloadStylesheetImages = function(styleSheet, path, expando) {
var rule, rules, styleNames, _i, _j, _len, _len2;
try {
rules = styleSheet != null ? styleSheet.cssRules : void 0;
} catch (e) {
}
if (!rules) {
return;
}
for (_i = 0, _len = rules.length; _i < _len; _i++) {
rule = rules[_i];
switch (rule.type) {
case CSSRule.IMPORT_RULE:
this.reloadStylesheetImages(rule.styleSheet, path, expando);
break;
case CSSRule.STYLE_RULE:
for (_j = 0, _len2 = IMAGE_STYLES.length; _j < _len2; _j++) {
styleNames = IMAGE_STYLES[_j].styleNames;
this.reloadStyleImages(rule.style, styleNames, path, expando);
}
break;
case CSSRule.MEDIA_RULE:
this.reloadStylesheetImages(rule, path, expando);
}
}
};
Reloader.prototype.reloadStyleImages = function(style, styleNames, path, expando) {
var newValue, styleName, value, _i, _len;
for (_i = 0, _len = styleNames.length; _i < _len; _i++) {
styleName = styleNames[_i];
value = style[styleName];
if (typeof value === 'string') {
newValue = value.replace(/\burl\s*\(([^)]*)\)/, __bind(function(match, src) {
if (pathsMatch(path, pathFromUrl(src))) {
return "url(" + (this.generateCacheBustUrl(src, expando)) + ")";
} else {
return match;
}
}, this));
if (newValue !== value) {
style[styleName] = newValue;
}
}
}
};
Reloader.prototype.reloadStylesheet = function(path) {
var imported, link, links, match, _i, _j, _len, _len2;
links = (function() {
var _i, _len, _ref, _results;
_ref = this.document.getElementsByTagName('link');
_results = [];
for (_i = 0, _len = _ref.length; _i < _len; _i++) {
link = _ref[_i];
if (link.rel === 'stylesheet' && !link.__LiveReload_pendingRemoval) {
_results.push(link);
}
}
return _results;
}).call(this);
imported = [];
for (_i = 0, _len = links.length; _i < _len; _i++) {
link = links[_i];
this.collectImportedStylesheets(link, link.sheet, imported);
}
this.console.log("LiveReload found " + links.length + " LINKed stylesheets, " + imported.length + " @imported stylesheets");
match = pickBestMatch(path, links.concat(imported), function(l) {
return pathFromUrl(l.href);
});
if (match) {
if (match.object.rule) {
this.console.log("LiveReload is reloading imported stylesheet: " + match.object.href);
this.reattachImportedRule(match.object);
} else {
this.console.log("LiveReload is reloading stylesheet: " + match.object.href);
this.reattachStylesheetLink(match.object);
}
} else {
this.console.log("LiveReload will reload all stylesheets because path '" + path + "' did not match any specific one");
for (_j = 0, _len2 = links.length; _j < _len2; _j++) {
link = links[_j];
this.reattachStylesheetLink(link);
}
}
return true;
};
Reloader.prototype.collectImportedStylesheets = function(link, styleSheet, result) {
var index, rule, rules, _len;
try {
rules = styleSheet != null ? styleSheet.cssRules : void 0;
} catch (e) {
}
if (rules && rules.length) {
for (index = 0, _len = rules.length; index < _len; index++) {
rule = rules[index];
switch (rule.type) {
case CSSRule.CHARSET_RULE:
continue;
case CSSRule.IMPORT_RULE:
result.push({
link: link,
rule: rule,
index: index,
href: rule.href
});
this.collectImportedStylesheets(link, rule.styleSheet, result);
break;
default:
break;
}
}
}
};
Reloader.prototype.reattachStylesheetLink = function(link) {
var clone, parent, timer;
if (link.__LiveReload_pendingRemoval) {
return;
}
link.__LiveReload_pendingRemoval = true;
clone = link.cloneNode(false);
clone.href = this.generateCacheBustUrl(link.href);
parent = link.parentNode;
if (parent.lastChild === link) {
parent.appendChild(clone);
} else {
parent.insertBefore(clone, link.nextSibling);
}
timer = new this.Timer(function() {
if (link.parentNode) {
return link.parentNode.removeChild(link);
}
});
return timer.start(this.stylesheetGracePeriod);
};
Reloader.prototype.reattachImportedRule = function(_arg) {
var href, index, link, media, newRule, parent, rule, tempLink;
rule = _arg.rule, index = _arg.index, link = _arg.link;
parent = rule.parentStyleSheet;
href = this.generateCacheBustUrl(rule.href);
media = rule.media.length ? [].join.call(rule.media, ', ') : '';
newRule = "@import url(\"" + href + "\") " + media + ";";
rule.__LiveReload_newHref = href;
tempLink = this.document.createElement("link");
tempLink.rel = 'stylesheet';
tempLink.href = href;
tempLink.__LiveReload_pendingRemoval = true;
if (link.parentNode) {
link.parentNode.insertBefore(tempLink, link);
}
return this.Timer.start(this.importCacheWaitPeriod, __bind(function() {
if (tempLink.parentNode) {
tempLink.parentNode.removeChild(tempLink);
}
if (rule.__LiveReload_newHref !== href) {
return;
}
parent.insertRule(newRule, index);
parent.deleteRule(index + 1);
rule = parent.cssRules[index];
rule.__LiveReload_newHref = href;
return this.Timer.start(this.importCacheWaitPeriod, __bind(function() {
if (rule.__LiveReload_newHref !== href) {
return;
}
parent.insertRule(newRule, index);
return parent.deleteRule(index + 1);
}, this));
}, this));
};
Reloader.prototype.generateUniqueString = function() {
return 'livereload=' + Date.now();
};
Reloader.prototype.generateCacheBustUrl = function(url, expando) {
var hash, oldParams, params, _ref;
if (expando == null) {
expando = this.generateUniqueString();
}
_ref = splitUrl(url), url = _ref.url, hash = _ref.hash, oldParams = _ref.params;
params = oldParams.replace(/(\?|&)livereload=(\d+)/, function(match, sep) {
return "" + sep + expando;
});
if (params === oldParams) {
if (oldParams.length === 0) {
params = "?" + expando;
} else {
params = "" + oldParams + "&" + expando;
}
}
return url + params + hash;
};
return Reloader;
})();
}).call(this);
// livereload
(function() {
var Connector, LiveReload, Options, Reloader, Timer;
var __bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; };
Connector = __connector.Connector;
Timer = __timer.Timer;
Options = __options.Options;
Reloader = __reloader.Reloader;
__livereload.LiveReload = LiveReload = (function() {
function LiveReload(window) {
this.window = window;
this.listeners = {};
this.console = this.window.console && this.window.console.log && this.window.console.error ? this.window.console : {
log: function() {},
error: function() {}
};
if (!(this.WebSocket = this.window.WebSocket || this.window.MozWebSocket)) {
console.error("LiveReload disabled because the browser does not seem to support web sockets");
return;
}
if (!(this.options = Options.extract(this.window.document))) {
console.error("LiveReload disabled because it could not find its own <SCRIPT> tag");
return;
}
this.reloader = new Reloader(this.window, this.console, Timer);
this.connector = new Connector(this.options, this.WebSocket, Timer, {
connecting: __bind(function() {}, this),
socketConnected: __bind(function() {}, this),
connected: __bind(function(protocol) {
var _base;
if (typeof (_base = this.listeners).connect === "function") {
_base.connect();
}
return this.log("LiveReload is connected to " + this.options.host + ":" + this.options.port + " (protocol v" + protocol + ").");
}, this),
error: __bind(function(e) {
if (e instanceof ProtocolError) {
return console.log("" + e.message + ".");
} else {
return console.log("LiveReload internal error: " + e.message);
}
}, this),
disconnected: __bind(function(reason, nextDelay) {
var _base;
if (typeof (_base = this.listeners).disconnect === "function") {
_base.disconnect();
}
switch (reason) {
case 'cannot-connect':
return this.log("LiveReload cannot connect to " + this.options.host + ":" + this.options.port + ", will retry in " + nextDelay + " sec.");
case 'broken':
return this.log("LiveReload disconnected from " + this.options.host + ":" + this.options.port + ", reconnecting in " + nextDelay + " sec.");
case 'handshake-timeout':
return this.log("LiveReload cannot connect to " + this.options.host + ":" + this.options.port + " (handshake timeout), will retry in " + nextDelay + " sec.");
case 'handshake-failed':
return this.log("LiveReload cannot connect to " + this.options.host + ":" + this.options.port + " (handshake failed), will retry in " + nextDelay + " sec.");
case 'manual':
break;
case 'error':
break;
default:
return this.log("LiveReload disconnected from " + this.options.host + ":" + this.options.port + " (" + reason + "), reconnecting in " + nextDelay + " sec.");
}
}, this),
message: __bind(function(message) {
switch (message.command) {
case 'reload':
return this.performReload(message);
case 'alert':
return this.performAlert(message);
}
}, this)
});
}
LiveReload.prototype.on = function(eventName, handler) {
return this.listeners[eventName] = handler;
};
LiveReload.prototype.log = function(message) {
return this.console.log("" + message);
};
LiveReload.prototype.performReload = function(message) {
var _ref, _ref2;
this.log("LiveReload received reload request for " + message.path + ".");
return this.reloader.reload(message.path, {
liveCSS: (_ref = message.liveCSS) != null ? _ref : true,
liveImg: (_ref2 = message.liveImg) != null ? _ref2 : true
});
};
LiveReload.prototype.performAlert = function(message) {
return alert(message.message);
};
LiveReload.prototype.shutDown = function() {
var _base;
this.connector.disconnect();
this.log("LiveReload disconnected.");
return typeof (_base = this.listeners).shutdown === "function" ? _base.shutdown() : void 0;
};
return LiveReload;
})();
}).call(this);
// startup
(function() {
var CustomEvents, LiveReload;
CustomEvents = __customevents;
LiveReload = window.LiveReload = new (__livereload.LiveReload)(window);
LiveReload.on('shutdown', function() {
return delete window.LiveReload;
});
LiveReload.on('connect', function() {
return CustomEvents.fire(document, 'LiveReloadConnect');
});
LiveReload.on('disconnect', function() {
return CustomEvents.fire(document, 'LiveReloadDisconnect');
});
CustomEvents.bind(document, 'LiveReloadShutDown', function() {
return LiveReload.shutDown();
});
}).call(this);
})();

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require "rack/livereload"
class Rack::LiveReload
VERSION = '0.0.1'
end

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module Rack
class LiveReload
LIVERELOAD_JS_PATH = '/__rack/livereload.js'
attr_reader :app
def initialize(app)
@app = app
end
def call(env)
if env['PATH_INFO'] == LIVERELOAD_JS_PATH
deliver_file(::File.expand_path('../../../js/livereload.js', __FILE__))
else
status, headers, body = @app.call(env)
case headers['Content-Type']
when %r{text/html}
new_body = []
body.each do |line|
if line['</head>']
src = LIVERELOAD_JS_PATH
src << "?host=#{env['HTTP_HOST'].gsub(%r{:.*}, '')}" if env['HTTP_HOST']
line.gsub!('</head>', %{<script type="text/javascript" src="#{src}"></script></head>})
end
new_body << line
headers["X-Rack-LiveReload"] = '1'
end
body = new_body
headers['Content-Length'] = body.join.length.to_s
end
[ status, headers, body ]
end
end
private
def deliver_file(file)
[ 200, { 'Content-Type' => 'text/javascript', 'Content-Length' => ::File.size(file).to_s }, [ ::File.read(file) ] ]
end
end
end

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# -*- encoding: utf-8 -*-
$:.push File.expand_path("../lib", __FILE__)
require "rack-livereload"
Gem::Specification.new do |s|
s.name = "rack-livereload"
s.version = Rack::LiveReload::VERSION
s.authors = ["John Bintz"]
s.email = ["john@coswellproductions.com"]
s.homepage = ""
s.summary = %q{TODO: Write a gem summary}
s.description = %q{TODO: Write a gem description}
s.rubyforge_project = "rack-livereload"
s.files = `git ls-files`.split("\n")
s.test_files = `git ls-files -- {test,spec,features}/*`.split("\n")
s.executables = `git ls-files -- bin/*`.split("\n").map{ |f| File.basename(f) }
s.require_paths = ["lib"]
# specify any dependencies here; for example:
s.add_development_dependency "rspec"
s.add_development_dependency "httparty"
s.add_development_dependency "sinatra"
s.add_development_dependency "shotgun"
s.add_development_dependency "thin"
s.add_development_dependency "rake"
s.add_development_dependency "mocha"
s.add_development_dependency "guard"
s.add_development_dependency "guard-rspec"
s.add_runtime_dependency "rack"
end

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require 'spec_helper'
describe Rack::LiveReload do
let(:middleware) { described_class.new(app) }
let(:app) { stub }
subject { middleware }
its(:app) { should == app }
let(:env) { {} }
context 'not text/html' do
let(:ret) { [ 200, { 'Content-Type' => 'image/png' }, [ '<head></head>' ] ] }
before do
app.stubs(:call).with(env).returns(ret)
end
it 'should pass through' do
middleware.call(env).should == ret
end
end
context 'text/html' do
before do
app.stubs(:call).with(env).returns([ 200, { 'Content-Type' => 'text/html', 'Content-Length' => 0 }, [ '<head></head>' ] ])
end
let(:ret) { middleware.call(env) }
let(:body) { ret.last.join }
let(:length) { ret[1]['Content-Length'] }
it 'should add the livereload js script tag' do
body.should include("script")
body.should include(described_class::LIVERELOAD_JS_PATH)
length.should == body.length.to_s
end
end
context '/__rack/livereload.js' do
let(:env) { { 'PATH_INFO' => described_class::LIVERELOAD_JS_PATH } }
before do
middleware.expects(:deliver_file).returns(true)
end
it 'should return the js file' do
middleware.call(env).should be_true
end
end
end

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require 'mocha'
require 'rack-livereload'
RSpec.configure do |c|
c.mock_with :mocha
end