/
core.js
188 lines (166 loc) · 6.11 KB
/
core.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
/*global io:false */
(function(){
var Chat = {
name: '',
colors: {},
socket: undefined,
lastMessage: '',
randomColor: function (format) {
var rint = Math.round(0xffffff * Math.random());
switch (format) {
case 'hex':
return ('#0' + rint.toString(16)).replace(/^#0([0-9a-f]{6})$/i, '#$1');
case 'rgb':
return 'rgb(' + (rint >> 16) + ',' + (rint >> 8 & 255) + ',' + (rint & 255) + ')';
default:
return rint;
}
},
fixUserName: function(username){
return username.replace(/\W/gim, '_');
},
getUserColor: function(user){
if (!(user in this.colors)) {
this.colors[user] = this.randomColor('hex');
}
return this.colors[user];
},
onMessage: function(mes){
var e = JSON.parse(mes);
if (e.writing === undefined) {
if($('#output div:last-child').hasClass('user-'+e.user)){
$('#output div:last-child').append('<pre>' + this.escapeHTML(e.message) + '</pre>');
}else{
$('#output').append('<div><div class="color-box" style="background:'+this.getUserColor(e.user)+'"></div><b>' + this.escapeHTML(e.user) + '</b>: <pre>' + this.escapeHTML(e.message) + '</pre></div>');
}
$('#output').scrollTop($('#output')[0].scrollHeight);
} else if (e.writing === true) {
if(e.user === this.name){ return; /* don't print my status */ }
$('#ww-' + this.fixUserName(e.user)).remove();
$('#writing').append('<div id="ww-' + this.fixUserName(e.user) + '">' + this.escapeHTML(e.user) + ' is writing...</div>');
} else if (e.writing === false) {
$('#ww-' + this.fixUserName(e.user)).remove();
} else {
$('#output').append(mes);
$('#output').scrollTop($('#output')[0].scrollHeight);
}
},
setSocketEvents: function(){
this.socket.on('message', $.proxy(this.onMessage, this));
},
setName: function(){
$('#name').val($.cookie('name') || '');
var $this = this;
$('#set-name').click(function(){
var name = $('#name').val().trim();
if(name.length < 2){ return alert('Please enter a valid name'); }
if(name.length > 20){ return alert('Name is too long'); }
var p = $('#participants li');
for(var i=0; i < p.length; i++){
console.log(p[i], p[i].innerHTML);
if(p[i].innerHTML == name){
return alert('This name is already used. Please choose another one.');
}
}
$this.name = $this.escapeHTML(name);
$('#entry').attr('disabled', false);
$.cookie('name', $this.name);
$this.joined();
$('#name-cont').remove();
});
},
send: function(object, str){
this.socket.send(JSON.stringify(object));
if(str !== ''){
$('#output').append(str || object.message);
$('#output').scrollTop($('#output')[0].scrollHeight);
}
},
escapeHTML: function(html){
return html.replace(/&/g, "&").replace(/</g, "<").replace(/>/g, ">");
},
joined: function(){
this.socket.emit('join',{
name: this.name
});
},
setKeyEvent: function(){
var entry = $('#entry');
var $this = this;
var time = 0;
entry.keyup(function(e) {
if (e.keyCode == 13) {
$this.send({
user: $this.name,
message: entry.val()
}, '');
$this.lastMessage = entry.val();
entry.val('');
}
clearTimeout(time);
time = setTimeout(function(){
$this.send({
user: $this.name,
writing: (entry.val().trim() !== '')
}, '');
}, 200);
});
},
onServerMessage: function(){
var $this = this;
this.socket.on('serverMessage', function(data){
$('#output').append('<div class="info-text" style="color:gold">' + $this.escapeHTML(data.message) + '</div>');
$('#entry').val($this.lastMessage);
});
},
participants: function(){
var $this = this;
this.socket.on('join', function(data){
if(data.name){
$('#output').append('<div class="info-text">' + data.name.replace(/</gim, '<') + ' has joined the chat</div>');
}
});
this.socket.on('leave', function(data){
if(data.name){
$('#output').append('<div class="info-text">' + data.name.replace(/</gim, '<') + ' has left the chat</div>');
}
});
this.socket.on('updateParticipantList', function(data){
$('#participants').html('');
for(var i in data.list){
if(data.list[i]){
$('#participants').append('<li style="color:'+$this.getUserColor(data.list[i])+'" >'+data.list[i]+'</li>');
}
}
});
},
setOutputHeight: function(){
var o = $('#output'), c = $('#o-cont');
var calc = function(){
o.css('display', 'none');
var h = c.height()+parseFloat(c.css('padding-top'))+parseFloat(c.css('padding-bottom'));
o.css('display', '');
o.css('height', h);
};
calc();
var t;
$(window).resize(function(){
calc();
clearTimeout(t);
t = setTimeout(function(){ calc(); }, 100); // Resize may happen really fast
});
},
init: function(){
this.socket = io.connect(location.hostname);
this.setSocketEvents();
this.setName();
this.participants();
this.setKeyEvent();
this.setOutputHeight();
this.onServerMessage();
}
};
$(function() {
Chat.init();
});
})();