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
|
// Live preview
function openXMLHttpRequest() {
if( window.XMLHttpRequest ) {
return new XMLHttpRequest();
} else if( window.ActiveXObject && navigator.platform != 'MacPPC' ) {
// IE/Mac has an ActiveXObject but it doesn't work.
return new ActiveXObject("Microsoft.XMLHTTP");
} else {
return null;
}
}
/**
* Returns true if could open the request,
* false otherwise (eg no browser support).
*/
function livePreview(target, text, postUrl) {
prevTarget = target;
if( !target ) {
window.alert(i18n(wgLivepreviewMessageFailed));
showFallback();
}
prevReq = openXMLHttpRequest();
if( !prevReq ) return false;
prevReq.onreadystatechange = updatePreviewText;
prevReq.open("POST", postUrl, true);
var postData = 'wpTextbox1=' + encodeURIComponent(text);
prevReq.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
prevReq.send(postData);
return true;
}
function updatePreviewText() {
if (prevReq.readyState > 0 && prevReq.readyState < 4) {
notify(i18n(wgLivepreviewMessageLoading));
}
if(prevReq.readyState != 4) {
return;
}
dismissNotify(i18n(wgLivepreviewMessageReady), 750);
if( prevReq.status != 200 ) {
var keys = new Array();
keys[0] = prevReq.status;
keys[1] = prevReq.statusText;
window.alert(i18n(wgLivepreviewMessageError, keys));
showFallback();
return;
}
var xmlObject = prevReq.responseXML.documentElement;
var previewElement = xmlObject.getElementsByTagName('preview')[0];
prevTarget.innerHTML = previewElement.firstChild.data;
/* Hide the active diff if it exists */
var diff = document.getElementById('wikiDiff');
if ( diff ) { diff.style.display = 'none'; }
}
function showFallback() {
var fallback = document.getElementById('wpPreview');
if ( fallback ) { fallback.style.display = 'inline'; }
}
// TODO: move elsewhere
/* Small non-intrusive popup which can be used for example to notify the user
* about completed AJAX action
*/
function notify(message) {
var notifyElement = document.getElementById('mw-js-notify');
if ( !notifyElement ) {
createNotify();
var notifyElement = document.getElementById('mw-js-notify');
}
notifyElement.style.display = 'block';
notifyElement.innerHTML = message;
}
function dismissNotify(message, timeout) {
var notifyElement = document.getElementById('mw-js-notify');
if ( notifyElement ) {
if ( timeout == 0 ) {
notifyElement.style.display = 'none';
} else {
notify(message);
setTimeout("dismissNotify('', 0)", timeout);
}
}
}
function createNotify() {
var div = document.createElement("div");
var txt = '###PLACEHOLDER###'
var txtNode = document.createTextNode(txt);
div.appendChild(txtNode);
div.id = 'mw-js-notify';
// TODO: move styles to css
div.setAttribute('style',
'display: none; position: fixed; bottom: 0px; right: 0px; color: white; background-color: DarkRed; z-index: 5; padding: 0.1em 1em 0.1em 1em; font-size: 120%;');
var body = document.getElementsByTagName('body')[0];
body.appendChild(div);
}
/* Helper function similar to wfMsgReplaceArgs() */
function i18n(message, keys) {
var localMessage = message;
if ( !keys ) { return localMessage; }
for( var i = 0; i < keys.length; i++) {
var myregexp = new RegExp("\\$"+(i+1), 'g');
localMessage = localMessage.replace(myregexp, keys[i]);
}
return localMessage;
}
|
