Fixed relative schema links & client readability

client/client.js

@@ -26,452 +26,481 @@ var frontpage = [
 	"",
 	"Server and web client released under the WTFPL and MIT open source license.",
 	"No message history is retained on the hack.chat server."
-].join("\n")
+].join("\n");
 
-function $(query) {return document.querySelector(query)}
+function $(query) {
+	return document.querySelector(query);
+}
 
 function localStorageGet(key) {
 	try {
 		return window.localStorage[key]
-	}
-	catch(e) {}
+	}	catch(e) {}
 }
 
 function localStorageSet(key, val) {
 	try {
 		window.localStorage[key] = val
-	}
-	catch(e) {}
+	} catch(e) {}
 }
 
-
-var ws
-var myNick = localStorageGet('my-nick')
-var myChannel = window.location.search.replace(/^\?/, '')
-var lastSent = [""]
-var lastSentPos = 0
-
+var ws;
+var myNick = localStorageGet('my-nick');
+var myChannel = window.location.search.replace(/^\?/, '');
+var lastSent = [""];
+var lastSentPos = 0;
 
 // Ping server every 50 seconds to retain WebSocket connection
-window.setInterval(function() {
-	send({cmd: 'ping'})
-}, 50000)
-
+window.setInterval(function () {
+	send({ cmd: 'ping' });
+}, 50000);
 
 function join(channel) {
 	if (document.domain == 'hack.chat') {
 		// For https://hack.chat/
-		ws = new WebSocket('wss://hack.chat/chat-ws')
+		ws = new WebSocket('wss://hack.chat/chat-ws');
 	} else {
 		// for local installs
-		ws = new WebSocket('ws://' + document.domain + ':6060')
+		ws = new WebSocket('ws://' + document.domain + ':6060');
 	}
 
-	var wasConnected = false
+	var wasConnected = false;
 
-	ws.onopen = function() {
+	ws.onopen = function () {
 		if (!wasConnected) {
 			if (location.hash) {
-				myNick = location.hash.substr(1)
-			}
-			else {
-				myNick = prompt('Nickname:', myNick)
+				myNick = location.hash.substr(1);
+			} else {
+				myNick = prompt('Nickname:', myNick);
 			}
 		}
+
 		if (myNick) {
-			localStorageSet('my-nick', myNick)
-			send({cmd: 'join', channel: channel, nick: myNick})
-		}
-		wasConnected = true
+			localStorageSet('my-nick', myNick);
+			send({ cmd: 'join', channel: channel, nick: myNick });
 		}
 
-	ws.onclose = function() {
+		wasConnected = true;
+	}
+
+	ws.onclose = function () {
 		if (wasConnected) {
-			pushMessage({nick: '!', text: "Server disconnected. Attempting to reconnect..."})
-		}
-		window.setTimeout(function() {
-			join(channel)
-		}, 2000)
+			pushMessage({ nick: '!', text: "Server disconnected. Attempting to reconnect. . ." });
 		}
 
-	ws.onmessage = function(message) {
-		var args = JSON.parse(message.data)
-		var cmd = args.cmd
-		var command = COMMANDS[cmd]
-		command.call(null, args)
+		window.setTimeout(function () {
+			join(channel);
+		}, 2000);
+	}
+
+	ws.onmessage = function (message) {
+		var args = JSON.parse(message.data);
+		var cmd = args.cmd;
+		var command = COMMANDS[cmd];
+		command.call(null, args);
 	}
 }
 
-
 var COMMANDS = {
-	chat: function(args) {
+	chat: function (args) {
 		if (ignoredUsers.indexOf(args.nick) >= 0) {
-			return
+			return;
 		}
-		pushMessage(args)
-	},
-	info: function(args) {
-		args.nick = '*'
-		pushMessage(args)
-	},
-	warn: function(args) {
-		args.nick = '!'
-		pushMessage(args)
-	},
-	onlineSet: function(args) {
-		var nicks = args.nicks
-		usersClear()
-		nicks.forEach(function(nick) {
-			userAdd(nick)
-		})
-		pushMessage({nick: '*', text: "Users online: " + nicks.join(", ")})
-	},
-	onlineAdd: function(args) {
-		var nick = args.nick
-		userAdd(nick)
-		if ($('#joined-left').checked) {
-			pushMessage({nick: '*', text: nick + " joined"})
-		}
-	},
-	onlineRemove: function(args) {
-		var nick = args.nick
-		userRemove(nick)
-		if ($('#joined-left').checked) {
-			pushMessage({nick: '*', text: nick + " left"})
-		}
-	},
-}
 
+		pushMessage(args);
+	},
+
+	info: function (args) {
+		args.nick = '*';
+
+		pushMessage(args);
+	},
+
+	warn: function (args) {
+		args.nick = '!';
+
+		pushMessage(args);
+	},
+
+	onlineSet: function (args) {
+		var nicks = args.nicks;
+
+		usersClear();
+
+		nicks.forEach(function (nick) {
+			userAdd(nick);
+		});
+
+		pushMessage({ nick: '*', text: "Users online: " + nicks.join(", ") })
+	},
+
+	onlineAdd: function (args) {
+		var nick = args.nick;
+
+		userAdd(nick);
+
+		if ($('#joined-left').checked) {
+			pushMessage({ nick: '*', text: nick + " joined" });
+		}
+	},
+
+	onlineRemove: function (args) {
+		var nick = args.nick;
+
+		userRemove(nick);
+
+		if ($('#joined-left').checked) {
+			pushMessage({ nick: '*', text: nick + " left" });
+		}
+	}
+}
 
 function pushMessage(args) {
 	// Message container
-	var messageEl = document.createElement('div')
-	messageEl.classList.add('message')
+	var messageEl = document.createElement('div');
+	messageEl.classList.add('message');
 
 	if (args.nick == myNick) {
-		messageEl.classList.add('me')
-	}
-	else if (args.nick == '!') {
-		messageEl.classList.add('warn')
-	}
-	else if (args.nick == '*') {
-		messageEl.classList.add('info')
-	}
-	else if (args.admin) {
-		messageEl.classList.add('admin')
-	}
-	else if (args.mod) {
-		messageEl.classList.add('mod')
+		messageEl.classList.add('me');
+	}	else if (args.nick == '!') {
+		messageEl.classList.add('warn');
+	}	else if (args.nick == '*') {
+		messageEl.classList.add('info');
+	}	else if (args.admin) {
+		messageEl.classList.add('admin');
+	}	else if (args.mod) {
+		messageEl.classList.add('mod');
 	}
 
 	// Nickname
-	var nickSpanEl = document.createElement('span')
-	nickSpanEl.classList.add('nick')
-	messageEl.appendChild(nickSpanEl)
+	var nickSpanEl = document.createElement('span');
+	nickSpanEl.classList.add('nick');
+	messageEl.appendChild(nickSpanEl);
 
 	if (args.trip) {
-		var tripEl = document.createElement('span')
-		tripEl.textContent = args.trip + " "
-		tripEl.classList.add('trip')
-		nickSpanEl.appendChild(tripEl)
+		var tripEl = document.createElement('span');
+		tripEl.textContent = args.trip + " ";
+		tripEl.classList.add('trip');
+		nickSpanEl.appendChild(tripEl);
 	}
 
 	if (args.nick) {
-		var nickLinkEl = document.createElement('a')
-		nickLinkEl.textContent = args.nick
-		nickLinkEl.onclick = function() {
-			insertAtCursor("@" + args.nick + " ")
-			$('#chatinput').focus()
+		var nickLinkEl = document.createElement('a');
+		nickLinkEl.textContent = args.nick;
+
+		nickLinkEl.onclick = function () {
+			insertAtCursor("@" + args.nick + " ");
+			$('#chatinput').focus();
 		}
-		var date = new Date(args.time || Date.now())
-		nickLinkEl.title = date.toLocaleString()
-		nickSpanEl.appendChild(nickLinkEl)
+
+		var date = new Date(args.time || Date.now());
+		nickLinkEl.title = date.toLocaleString();
+		nickSpanEl.appendChild(nickLinkEl);
 	}
 
 	// Text
-	var textEl = document.createElement('pre')
-	textEl.classList.add('text')
+	var textEl = document.createElement('pre');
+	textEl.classList.add('text');
 
-	textEl.textContent = args.text || ''
-	textEl.innerHTML = textEl.innerHTML.replace(/(\?|https?:\/\/)\S+?(?=[,.!?:)]?\s|$)/g, parseLinks)
+	textEl.textContent = args.text || '';
+	textEl.innerHTML = textEl.innerHTML.replace(/(\?|https?:\/\/)\S+?(?=[,.!?:)]?\s|$)/g, parseLinks);
 
 	if ($('#parse-latex').checked) {
 		// Temporary hotfix for \rule spamming, see https://github.com/Khan/KaTeX/issues/109
-		textEl.innerHTML = textEl.innerHTML.replace(/\\rule|\\\\\s*\[.*?\]/g, '')
+		textEl.innerHTML = textEl.innerHTML.replace(/\\rule|\\\\\s*\[.*?\]/g, '');
 		try {
 			renderMathInElement(textEl, {delimiters: [
-				{left: "$$", right: "$$", display: true},
-				{left: "$", right: "$", display: false},
+				{ left: "$$", right: "$$", display: true },
+				{ left: "$", right: "$", display: false },
 			]})
-		}
-		catch (e) {
-			console.warn(e)
+		}	catch (e) {
+			console.warn(e);
 		}
 	}
 
-	messageEl.appendChild(textEl)
+	messageEl.appendChild(textEl);
 
 	// Scroll to bottom
-	var atBottom = isAtBottom()
-	$('#messages').appendChild(messageEl)
+	var atBottom = isAtBottom();
+	$('#messages').appendChild(messageEl);
 	if (atBottom) {
-		window.scrollTo(0, document.body.scrollHeight)
+		window.scrollTo(0, document.body.scrollHeight);
 	}
 
-	unread += 1
-	updateTitle()
+	unread += 1;
+	updateTitle();
 }
 
-
 function insertAtCursor(text) {
-	var input = $('#chatinput')
-	var start = input.selectionStart || 0
-	var before = input.value.substr(0, start)
-	var after = input.value.substr(start)
-	before += text
-	input.value = before + after
-	input.selectionStart = input.selectionEnd = before.length
-	updateInputSize()
-}
+	var input = $('#chatinput');
+	var start = input.selectionStart || 0;
+	var before = input.value.substr(0, start);
+	var after = input.value.substr(start);
 
+	before += text;
+	input.value = before + after;
+	input.selectionStart = input.selectionEnd = before.length;
+
+	updateInputSize();
+}
 
 function send(data) {
 	if (ws && ws.readyState == ws.OPEN) {
-		ws.send(JSON.stringify(data))
+		ws.send(JSON.stringify(data));
 	}
 }
 
-
 function parseLinks(g0) {
-	var a = document.createElement('a')
-	a.innerHTML = g0
-	var url = a.textContent
-	a.href = url
-	a.target = '_blank'
-	return a.outerHTML
+	var a = document.createElement('a');
+
+	a.innerHTML = g0;
+
+	var url = a.textContent;
+
+	a.href = url;
+	a.target = '_blank';
+
+	return a.outerHTML;
 }
 
+var windowActive = true;
+var unread = 0;
 
-var windowActive = true
-var unread = 0
+window.onfocus = function () {
+	windowActive = true;
 
-window.onfocus = function() {
-	windowActive = true
-	updateTitle()
+	updateTitle();
 }
 
-window.onblur = function() {
-	windowActive = false
+window.onblur = function () {
+	windowActive = false;
 }
 
-window.onscroll = function() {
+window.onscroll = function () {
 	if (isAtBottom()) {
-		updateTitle()
+		updateTitle();
 	}
 }
 
 function isAtBottom() {
-	return (window.innerHeight + window.scrollY) >= (document.body.scrollHeight - 1)
+	return (window.innerHeight + window.scrollY) >= (document.body.scrollHeight - 1);
 }
 
 function updateTitle() {
 	if (windowActive && isAtBottom()) {
-		unread = 0
+		unread = 0;
 	}
 
-	var title
+	var title;
 	if (myChannel) {
-		title = "?" + myChannel
-	}
-	else {
-		title = "hack.chat"
+		title = "?" + myChannel;
+	}	else {
+		title = "hack.chat";
 	}
+
 	if (unread > 0) {
-		title = '(' + unread + ') ' + title
+		title = '(' + unread + ') ' + title;
 	}
-	document.title = title
+
+	document.title = title;
 }
 
-/* footer */
-
-$('#footer').onclick = function() {
-	$('#chatinput').focus()
+$('#footer').onclick = function () {
+	$('#chatinput').focus();
 }
 
-$('#chatinput').onkeydown = function(e) {
+$('#chatinput').onkeydown = function (e) {
 	if (e.keyCode == 13 /* ENTER */ && !e.shiftKey) {
-		e.preventDefault()
+		e.preventDefault();
+
 		// Submit message
 		if (e.target.value != '') {
-			var text = e.target.value
-			e.target.value = ''
-			send({cmd: 'chat', text: text})
-			lastSent[0] = text
-			lastSent.unshift("")
-			lastSentPos = 0
-			updateInputSize()
+			var text = e.target.value;
+			e.target.value = '';
+
+			send({ cmd: 'chat', text: text });
+
+			lastSent[0] = text;
+			lastSent.unshift("");
+			lastSentPos = 0;
+
+			updateInputSize();
 		}
-	}
-	else if (e.keyCode == 38 /* UP */) {
+	}	else if (e.keyCode == 38 /* UP */) {
 		// Restore previous sent messages
 		if (e.target.selectionStart === 0 && lastSentPos < lastSent.length - 1) {
-			e.preventDefault()
+			e.preventDefault();
+
 			if (lastSentPos == 0) {
-				lastSent[0] = e.target.value
+				lastSent[0] = e.target.value;
 			}
-			lastSentPos += 1
-			e.target.value = lastSent[lastSentPos]
-			e.target.selectionStart = e.target.selectionEnd = e.target.value.length
-			updateInputSize()
+
+			lastSentPos += 1;
+			e.target.value = lastSent[lastSentPos];
+			e.target.selectionStart = e.target.selectionEnd = e.target.value.length;
+
+			updateInputSize();
 		}
-	}
-	else if (e.keyCode == 40 /* DOWN */) {
+	} else if (e.keyCode == 40 /* DOWN */) {
 		if (e.target.selectionStart === e.target.value.length && lastSentPos > 0) {
-			e.preventDefault()
-			lastSentPos -= 1
-			e.target.value = lastSent[lastSentPos]
-			e.target.selectionStart = e.target.selectionEnd = 0
-			updateInputSize()
+			e.preventDefault();
+
+			lastSentPos -= 1;
+			e.target.value = lastSent[lastSentPos];
+			e.target.selectionStart = e.target.selectionEnd = 0;
+
+			updateInputSize();
 		}
-	}
-	else if (e.keyCode == 27 /* ESC */) {
-		e.preventDefault()
+	} else if (e.keyCode == 27 /* ESC */) {
+		e.preventDefault();
+
 		// Clear input field
-		e.target.value = ""
-		lastSentPos = 0
-		lastSent[lastSentPos] = ""
-		updateInputSize()
-	}
-	else if (e.keyCode == 9 /* TAB */) {
+		e.target.value = "";
+		lastSentPos = 0;
+		lastSent[lastSentPos] = "";
+
+		updateInputSize();
+	}	else if (e.keyCode == 9 /* TAB */) {
 		// Tab complete nicknames starting with @
-		e.preventDefault()
-		var pos = e.target.selectionStart || 0
-		var text = e.target.value
-		var index = text.lastIndexOf('@', pos)
+		e.preventDefault();
+
+		var pos = e.target.selectionStart || 0;
+		var text = e.target.value;
+		var index = text.lastIndexOf('@', pos);
+
 		if (index >= 0) {
-			var stub = text.substring(index + 1, pos).toLowerCase()
+			var stub = text.substring(index + 1, pos).toLowerCase();
 			// Search for nick beginning with stub
-			var nicks = onlineUsers.filter(function(nick) {
+			var nicks = onlineUsers.filter(function (nick) {
 				return nick.toLowerCase().indexOf(stub) == 0
-			})
+			});
+
 			if (nicks.length == 1) {
-				insertAtCursor(nicks[0].substr(stub.length) + " ")
+				insertAtCursor(nicks[0].substr(stub.length) + " ");
 			}
 		}
 	}
 }
 
-
 function updateInputSize() {
-	var atBottom = isAtBottom()
+	var atBottom = isAtBottom();
 
-	var input = $('#chatinput')
-	input.style.height = 0
-	input.style.height = input.scrollHeight + 'px'
-	document.body.style.marginBottom = $('#footer').offsetHeight + 'px'
+	var input = $('#chatinput');
+	input.style.height = 0;
+	input.style.height = input.scrollHeight + 'px';
+	document.body.style.marginBottom = $('#footer').offsetHeight + 'px';
 
 	if (atBottom) {
-		window.scrollTo(0, document.body.scrollHeight)
+		window.scrollTo(0, document.body.scrollHeight);
 	}
 }
 
-$('#chatinput').oninput = function() {
-	updateInputSize()
+$('#chatinput').oninput = function () {
+	updateInputSize();
 }
 
-updateInputSize()
+updateInputSize();
 
 
 /* sidebar */
 
-$('#sidebar').onmouseenter = $('#sidebar').ontouchstart = function(e) {
-	$('#sidebar-content').classList.remove('hidden')
-	e.stopPropagation()
+$('#sidebar').onmouseenter = $('#sidebar').ontouchstart = function (e) {
+	$('#sidebar-content').classList.remove('hidden');
+	e.stopPropagation();
 }
 
-$('#sidebar').onmouseleave = document.ontouchstart = function() {
+$('#sidebar').onmouseleave = document.ontouchstart = function () {
 	if (!$('#pin-sidebar').checked) {
-		$('#sidebar-content').classList.add('hidden')
+		$('#sidebar-content').classList.add('hidden');
 	}
 }
 
-$('#clear-messages').onclick = function() {
+$('#clear-messages').onclick = function () {
 	// Delete children elements
-	var messages = $('#messages')
+	var messages = $('#messages');
 	while (messages.firstChild) {
-		messages.removeChild(messages.firstChild)
+		messages.removeChild(messages.firstChild);
 	}
 }
 
 // Restore settings from localStorage
 
 if (localStorageGet('pin-sidebar') == 'true') {
-	$('#pin-sidebar').checked = true
-	$('#sidebar-content').classList.remove('hidden')
-}
-if (localStorageGet('joined-left') == 'false') {
-	$('#joined-left').checked = false
-}
-if (localStorageGet('parse-latex') == 'false') {
-	$('#parse-latex').checked = false
+	$('#pin-sidebar').checked = true;
+	$('#sidebar-content').classList.remove('hidden');
 }
 
-$('#pin-sidebar').onchange = function(e) {
-	localStorageSet('pin-sidebar', !!e.target.checked)
+if (localStorageGet('joined-left') == 'false') {
+	$('#joined-left').checked = false;
 }
-$('#joined-left').onchange = function(e) {
-	localStorageSet('joined-left', !!e.target.checked)
+
+if (localStorageGet('parse-latex') == 'false') {
+	$('#parse-latex').checked = false;
 }
-$('#parse-latex').onchange = function(e) {
-	localStorageSet('parse-latex', !!e.target.checked)
+
+$('#pin-sidebar').onchange = function (e) {
+	localStorageSet('pin-sidebar', !!e.target.checked);
+}
+
+$('#joined-left').onchange = function (e) {
+	localStorageSet('joined-left', !!e.target.checked);
+}
+
+$('#parse-latex').onchange = function (e) {
+	localStorageSet('parse-latex', !!e.target.checked);
 }
 
 // User list
-
-var onlineUsers = []
-var ignoredUsers = []
+var onlineUsers = [];
+var ignoredUsers = [];
 
 function userAdd(nick) {
-	var user = document.createElement('a')
-	user.textContent = nick
-	user.onclick = function(e) {
+	var user = document.createElement('a');
+	user.textContent = nick;
+
+	user.onclick = function (e) {
 		userInvite(nick)
 	}
-	var userLi = document.createElement('li')
-	userLi.appendChild(user)
-	$('#users').appendChild(userLi)
-	onlineUsers.push(nick)
+
+	var userLi = document.createElement('li');
+	userLi.appendChild(user);
+	$('#users').appendChild(userLi);
+	onlineUsers.push(nick);
 }
 
 function userRemove(nick) {
-	var users = $('#users')
-	var children = users.children
+	var users = $('#users');
+	var children = users.children;
+
 	for (var i = 0; i < children.length; i++) {
-		var user = children[i]
+		var user = children[i];
 		if (user.textContent == nick) {
-			users.removeChild(user)
+			users.removeChild(user);
 		}
 	}
-	var index = onlineUsers.indexOf(nick)
+
+	var index = onlineUsers.indexOf(nick);
 	if (index >= 0) {
-		onlineUsers.splice(index, 1)
+		onlineUsers.splice(index, 1);
 	}
 }
 
 function usersClear() {
-	var users = $('#users')
+	var users = $('#users');
+
 	while (users.firstChild) {
-		users.removeChild(users.firstChild)
+		users.removeChild(users.firstChild);
 	}
-	onlineUsers.length = 0
+
+	onlineUsers.length = 0;
 }
 
 function userInvite(nick) {
-	send({cmd: 'invite', nick: nick})
+	send({ cmd: 'invite', nick: nick });
 }
 
 function userIgnore(nick) {
-	ignoredUsers.push(nick)
+	ignoredUsers.push(nick);
 }
 
 /* color scheme switcher */
@@ -495,44 +524,42 @@ var schemes = [
 	'pop',
 	'railscasts',
 	'solarized',
-	'tomorrow',
-]
+	'tomorrow'
+];
 
-var currentScheme = 'atelier-dune'
+var currentScheme = 'atelier-dune';
 
 function setScheme(scheme) {
-	currentScheme = scheme
-	$('#scheme-link').href = "/schemes/" + scheme + ".css"
-	localStorageSet('scheme', scheme)
+	currentScheme = scheme;
+	$('#scheme-link').href = "schemes/" + scheme + ".css";
+	localStorageSet('scheme', scheme);
 }
 
 // Add scheme options to dropdown selector
-schemes.forEach(function(scheme) {
-	var option = document.createElement('option')
-	option.textContent = scheme
-	option.value = scheme
-	$('#scheme-selector').appendChild(option)
-})
+schemes.forEach(function (scheme) {
+	var option = document.createElement('option');
+	option.textContent = scheme;
+	option.value = scheme;
+	$('#scheme-selector').appendChild(option);
+});
 
-$('#scheme-selector').onchange = function(e) {
-	setScheme(e.target.value)
+$('#scheme-selector').onchange = function (e) {
+	setScheme(e.target.value);
 }
 
 // Load sidebar configaration values from local storage if available
 if (localStorageGet('scheme')) {
-	setScheme(localStorageGet('scheme'))
+	setScheme(localStorageGet('scheme'));
 }
 
-$('#scheme-selector').value = currentScheme
-
+$('#scheme-selector').value = currentScheme;
 
 /* main */
 
 if (myChannel == '') {
-	pushMessage({text: frontpage})
-	$('#footer').classList.add('hidden')
-	$('#sidebar').classList.add('hidden')
-}
-else {
-	join(myChannel)
+	pushMessage({ text: frontpage });
+	$('#footer').classList.add('hidden');
+	$('#sidebar').classList.add('hidden');
+} else {
+	join(myChannel);
 }