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comparison logintets/login_presentation.js @ 0:477258d09353 boosterpack

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[svn r1] initial import
author robert
date Sun, 30 Aug 2009 02:19:26 -0400
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-1:000000000000 0:477258d09353
1 var showingLoggedIn = false;
2 var messageElement = false;
3 var messageP = false;
4
5 // focusField method: called when username and password gain focus
6 function focusField()
7 {
8 try {
9 if (messageElement != false)
10 {
11 document.getElementById('message').removeChild(messageElement);
12 }
13 getSeed();
14 }
15 catch (e)
16 { } // do nothing... hides an apparent firefox bug: https://bugzilla.mozilla.org/show_bug.cgi?id=236791
17 }
18
19 // blurField method: called when username and password are blurred
20 function blurField()
21 {
22 try {
23 validateLogin();
24 }
25 catch (e)
26 { } // hide bug https://bugzilla.mozilla.org/show_bug.cgi?id=236791
27 }
28
29 // showLogin method: displays if necessariy that we are logged in
30 function showLogin() {
31 if (messageElement != false)
32 {
33 try {
34 document.getElementById('message').removeChild(messageElement);
35 }
36 catch (e) { }
37 }
38 if (loggedIn)
39 {
40 showingLoggedIn = true;
41
42 loginPanel = document.getElementById('login');
43 p = document.createElement('p');
44 pre = document.createTextNode('Logged in as ');
45 strong = document.createElement('strong');
46 strong_text = document.createTextNode(fullname);
47 strong.appendChild(strong_text);
48 mid = document.createTextNode(' [');
49 a = document.createElement('a');
50 a.href='javascript:logout();';
51 a_text = document.createTextNode('logout');
52 a.appendChild(a_text);
53 post = document.createTextNode(']');
54
55 p.appendChild(pre);
56 p.appendChild(strong);
57 p.appendChild(mid);
58 p.appendChild(a);
59 p.appendChild(post);
60
61 messageP = document.getElementById('message');
62 loginPanel.removeChild(messageP);
63 loginPanel.appendChild(p);
64
65 messageElement = p;
66
67 document.getElementById('username').disabled = 'disabled';
68 document.getElementById('password').disabled = 'disabled';
69
70 document.getElementById('comments').focus();
71 }
72 else
73 {
74 messageElement = document.createElement('strong');
75 messageElement.appendChild(document.createTextNode(' ' + messages));
76 messageElement.style.color = '#ff0000';
77 document.getElementById('message').appendChild(messageElement);
78 }
79 }
80
81 // logout method: prepares for a new login
82 function logout()
83 {
84 resetLogin();
85 username = document.getElementById('username');
86 password = document.getElementById('password');
87 loginPanel = document.getElementById('login');
88 username.value = '';
89 password.value = '';
90 username.disabled = null;
91 password.disabled = null;
92
93 loginPanel.removeChild(messageElement);
94 loginPanel.appendChild(messageP);
95
96 messageElement = false;
97 showingLoggedIn = false;
98
99 username.focus();
100 }
101
102 // setupLogin method: to be called on page load, sets up the login script
103 function setupLogin()
104 {
105 username = document.getElementById('username');
106 password = document.getElementById('password');
107 addEvent(username, 'focus', focusField);
108 addEvent(username, 'blur', blurField);
109 addEvent(password, 'focus', focusField);
110 addEvent(password, 'blur', blurField);
111 }
112
113
114 // function to add events to the page in a cross-browser manner
115 function addEvent(objObject, strEventName, fnHandler) {
116 // DOM-compliant way to add an event listener
117 if (objObject.addEventListener) {
118 objObject.addEventListener(strEventName, fnHandler, false);
119 }
120 // IE/windows way to add an event listener
121 else if (objObject.attachEvent) {
122 objObject.attachEvent('on' + strEventName, fnHandler);
123 }
124 }
125
126 addEvent(window,'load',setupLogin);