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Viewing changes to tools/ajaxterm/ajaxterm.js

  • Committer: Brian Waldon
  • Date: 2011-07-29 16:54:55 UTC
  • mto: This revision was merged to the branch mainline in revision 1364.
  • Revision ID: brian.waldon@rackspace.com-20110729165455-4ebqwv8s5pkscmmg
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tools/ajaxterm/ajaxterm.js
 
1
ajaxterm={};
 
2
ajaxterm.Terminal_ctor=function(id,width,height) {
 
3
        var ie=0;
 
4
        if(window.ActiveXObject)
 
5
                ie=1;
 
6
        var sid=""+SESSION_ID;
 
7
        var query0="s="+sid+"&w="+width+"&h="+height;
 
8
        var query1=query0+"&c=1&k=";
 
9
        var buf="";
 
10
        var timeout;
 
11
        var error_timeout;
 
12
        var keybuf=[];
 
13
        var sending=0;
 
14
        var rmax=1;
 
15
 
 
16
        var div=document.getElementById(id);
 
17
        var dstat=document.createElement('pre');
 
18
        var sled=document.createElement('span');
 
19
        var opt_get=document.createElement('a');
 
20
        var opt_color=document.createElement('a');
 
21
        var opt_paste=document.createElement('a');
 
22
        var sdebug=document.createElement('span');
 
23
        var dterm=document.createElement('div');
 
24
 
 
25
        function debug(s) {
 
26
                sdebug.innerHTML=s;
 
27
        }
 
28
        function error() {
 
29
                sled.className='off';
 
30
                debug("Connection lost timeout ts:"+((new Date).getTime()));
 
31
        }
 
32
        function opt_add(opt,name) {
 
33
                opt.className='off';
 
34
                opt.innerHTML=' '+name+' ';
 
35
                dstat.appendChild(opt);
 
36
                dstat.appendChild(document.createTextNode(' '));
 
37
        }
 
38
        function do_get(event) {
 
39
                opt_get.className=(opt_get.className=='off')?'on':'off';
 
40
                debug('GET '+opt_get.className);
 
41
        }
 
42
        function do_color(event) {
 
43
                var o=opt_color.className=(opt_color.className=='off')?'on':'off';
 
44
                if(o=='on')
 
45
                        query1=query0+"&c=1&k=";
 
46
                else
 
47
                        query1=query0+"&k=";
 
48
                debug('Color '+opt_color.className);
 
49
        }
 
50
        function mozilla_clipboard() {
 
51
                 // mozilla sucks
 
52
                try {
 
53
                        netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
 
54
                } catch (err) {
 
55
                        debug('Access denied, <a href="http://kb.mozillazine.org/Granting_JavaScript_access_to_the_clipboard" target="_blank">more info</a>');
 
56
                        return undefined;
 
57
                }
 
58
                var clip = Components.classes["@mozilla.org/widget/clipboard;1"].createInstance(Components.interfaces.nsIClipboard);
 
59
                var trans = Components.classes["@mozilla.org/widget/transferable;1"].createInstance(Components.interfaces.nsITransferable);
 
60
                if (!clip || !trans) {
 
61
                        return undefined;
 
62
                }
 
63
                trans.addDataFlavor("text/unicode");
 
64
                clip.getData(trans,clip.kGlobalClipboard);
 
65
                var str=new Object();
 
66
                var strLength=new Object();
 
67
                try {
 
68
                        trans.getTransferData("text/unicode",str,strLength);
 
69
                } catch(err) {
 
70
                        return "";
 
71
                }
 
72
                if (str) {
 
73
                        str=str.value.QueryInterface(Components.interfaces.nsISupportsString);
 
74
                }
 
75
                if (str) {
 
76
                        return str.data.substring(0,strLength.value / 2);
 
77
                } else {
 
78
                        return "";
 
79
                }
 
80
        }
 
81
        function do_paste(event) {
 
82
                var p=undefined;
 
83
                if (window.clipboardData) {
 
84
                        p=window.clipboardData.getData("Text");
 
85
                } else if(window.netscape) {
 
86
                        p=mozilla_clipboard();
 
87
                }
 
88
                if (p) {
 
89
                        debug('Pasted');
 
90
                        queue(encodeURIComponent(p));
 
91
                } else {
 
92
                }
 
93
        }
 
94
        function update() {
 
95
//              debug("ts: "+((new Date).getTime())+" rmax:"+rmax);
 
96
                if(sending==0) {
 
97
                        sending=1;
 
98
                        sled.className='on';
 
99
                        var r=new XMLHttpRequest();
 
100
                        var send="";
 
101
                        while(keybuf.length>0) {
 
102
                                send+=keybuf.pop();
 
103
                        }
 
104
                        var query=query1+send;
 
105
                        if(opt_get.className=='on') {
 
106
                                r.open("GET","u?"+query,true);
 
107
                                if(ie) {
 
108
                                        r.setRequestHeader("If-Modified-Since", "Sat, 1 Jan 2000 00:00:00 GMT");
 
109
                                }
 
110
                        } else {
 
111
                                r.open("POST","u",true);
 
112
                        }
 
113
                        r.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
 
114
                        r.onreadystatechange = function () {
 
115
//                              debug("xhr:"+((new Date).getTime())+" state:"+r.readyState+" status:"+r.status+" statusText:"+r.statusText);
 
116
                                if (r.readyState==4) {
 
117
                                        if(r.status==200) {
 
118
                                                window.clearTimeout(error_timeout);
 
119
                                                de=r.responseXML.documentElement;
 
120
                                                if(de.tagName=="pre") {
 
121
                                                        if(ie) {
 
122
                                                                Sarissa.updateContentFromNode(de, dterm);
 
123
                                                        } else {
 
124
                                                                Sarissa.updateContentFromNode(de, dterm);
 
125
//                                                              old=div.firstChild;
 
126
//                                                              div.replaceChild(de,old);
 
127
                                                        }
 
128
                                                        rmax=100;
 
129
                                                } else {
 
130
                                                        rmax*=2;
 
131
                                                        if(rmax>2000)
 
132
                                                                rmax=2000;
 
133
                                                }
 
134
                                                sending=0;
 
135
                                                sled.className='off';
 
136
                                                timeout=window.setTimeout(update,rmax);
 
137
                                        } else {
 
138
                                                debug("Connection error status:"+r.status);
 
139
                                        }
 
140
                                }
 
141
                        }
 
142
                        error_timeout=window.setTimeout(error,5000);
 
143
                        if(opt_get.className=='on') {
 
144
                                r.send(null);
 
145
                        } else {
 
146
                                r.send(query);
 
147
                        }
 
148
                }
 
149
        }
 
150
        function queue(s) {
 
151
                keybuf.unshift(s);
 
152
                if(sending==0) {
 
153
                        window.clearTimeout(timeout);
 
154
                        timeout=window.setTimeout(update,1);
 
155
                }
 
156
        }
 
157
        function keypress(ev) {
 
158
                if (!ev) var ev=window.event;
 
159
//              s="kp keyCode="+ev.keyCode+" which="+ev.which+" shiftKey="+ev.shiftKey+" ctrlKey="+ev.ctrlKey+" altKey="+ev.altKey;
 
160
//              debug(s);
 
161
//              return false;
 
162
//              else { if (!ev.ctrlKey || ev.keyCode==17) { return; }
 
163
                var kc;
 
164
                var k="";
 
165
                if (ev.keyCode)
 
166
                        kc=ev.keyCode;
 
167
                if (ev.which)
 
168
                        kc=ev.which;
 
169
                if (ev.altKey) {
 
170
                        if (kc>=65 && kc<=90)
 
171
                                kc+=32;
 
172
                        if (kc>=97 && kc<=122) {
 
173
                                k=String.fromCharCode(27)+String.fromCharCode(kc);
 
174
                        }
 
175
                } else if (ev.ctrlKey) {
 
176
                        if (kc>=65 && kc<=90) k=String.fromCharCode(kc-64); // Ctrl-A..Z
 
177
                        else if (kc>=97 && kc<=122) k=String.fromCharCode(kc-96); // Ctrl-A..Z
 
178
                        else if (kc==54)  k=String.fromCharCode(30); // Ctrl-^
 
179
                        else if (kc==109) k=String.fromCharCode(31); // Ctrl-_
 
180
                        else if (kc==219) k=String.fromCharCode(27); // Ctrl-[
 
181
                        else if (kc==220) k=String.fromCharCode(28); // Ctrl-\
 
182
                        else if (kc==221) k=String.fromCharCode(29); // Ctrl-]
 
183
                        else if (kc==219) k=String.fromCharCode(29); // Ctrl-]
 
184
                        else if (kc==219) k=String.fromCharCode(0);  // Ctrl-@
 
185
                } else if (ev.which==0) {
 
186
                        if (kc==9) k=String.fromCharCode(9);  // Tab
 
187
                        else if (kc==8) k=String.fromCharCode(127);  // Backspace
 
188
                        else if (kc==27) k=String.fromCharCode(27); // Escape
 
189
                        else {
 
190
                                if (kc==33) k="[5~";        // PgUp
 
191
                                else if (kc==34) k="[6~";   // PgDn
 
192
                                else if (kc==35) k="[4~";   // End
 
193
                                else if (kc==36) k="[1~";   // Home
 
194
                                else if (kc==37) k="[D";    // Left
 
195
                                else if (kc==38) k="[A";    // Up
 
196
                                else if (kc==39) k="[C";    // Right
 
197
                                else if (kc==40) k="[B";    // Down
 
198
                                else if (kc==45) k="[2~";   // Ins
 
199
                                else if (kc==46) k="[3~";   // Del
 
200
                                else if (kc==112) k="[[A";  // F1
 
201
                                else if (kc==113) k="[[B";  // F2
 
202
                                else if (kc==114) k="[[C";  // F3
 
203
                                else if (kc==115) k="[[D";  // F4
 
204
                                else if (kc==116) k="[[E";  // F5
 
205
                                else if (kc==117) k="[17~"; // F6
 
206
                                else if (kc==118) k="[18~"; // F7
 
207
                                else if (kc==119) k="[19~"; // F8
 
208
                                else if (kc==120) k="[20~"; // F9
 
209
                                else if (kc==121) k="[21~"; // F10
 
210
                                else if (kc==122) k="[23~"; // F11
 
211
                                else if (kc==123) k="[24~"; // F12
 
212
                                if (k.length) {
 
213
                                        k=String.fromCharCode(27)+k;
 
214
                                }
 
215
                        }
 
216
                } else {
 
217
                        if (kc==8)
 
218
                                k=String.fromCharCode(127);  // Backspace
 
219
                        else
 
220
                                k=String.fromCharCode(kc);
 
221
                }
 
222
                if(k.length) {
 
223
//                      queue(encodeURIComponent(k));
 
224
                        if(k=="+") {
 
225
                                queue("%2B");
 
226
                        } else {
 
227
                                queue(escape(k));
 
228
                        }
 
229
                }
 
230
                ev.cancelBubble=true;
 
231
                if (ev.stopPropagation) ev.stopPropagation();
 
232
                if (ev.preventDefault)  ev.preventDefault();
 
233
                return false;
 
234
        }
 
235
        function keydown(ev) {
 
236
                if (!ev) var ev=window.event;
 
237
                if (ie) {
 
238
//                      s="kd keyCode="+ev.keyCode+" which="+ev.which+" shiftKey="+ev.shiftKey+" ctrlKey="+ev.ctrlKey+" altKey="+ev.altKey;
 
239
//                      debug(s);
 
240
                        o={9:1,8:1,27:1,33:1,34:1,35:1,36:1,37:1,38:1,39:1,40:1,45:1,46:1,112:1,
 
241
                        113:1,114:1,115:1,116:1,117:1,118:1,119:1,120:1,121:1,122:1,123:1};
 
242
                        if (o[ev.keyCode] || ev.ctrlKey || ev.altKey) {
 
243
                                ev.which=0;
 
244
                                return keypress(ev);
 
245
                        }
 
246
                }
 
247
        }
 
248
        function init() {
 
249
                sled.appendChild(document.createTextNode('\xb7'));
 
250
                sled.className='off';
 
251
                dstat.appendChild(sled);
 
252
                dstat.appendChild(document.createTextNode(' '));
 
253
                opt_add(opt_color,'Colors');
 
254
                opt_color.className='on';
 
255
                opt_add(opt_get,'GET');
 
256
                opt_add(opt_paste,'Paste');
 
257
                dstat.appendChild(sdebug);
 
258
                dstat.className='stat';
 
259
                div.appendChild(dstat);
 
260
                div.appendChild(dterm);
 
261
                if(opt_color.addEventListener) {
 
262
                        opt_get.addEventListener('click',do_get,true);
 
263
                        opt_color.addEventListener('click',do_color,true);
 
264
                        opt_paste.addEventListener('click',do_paste,true);
 
265
                } else {
 
266
                        opt_get.attachEvent("onclick", do_get);
 
267
                        opt_color.attachEvent("onclick", do_color);
 
268
                        opt_paste.attachEvent("onclick", do_paste);
 
269
                }
 
270
                document.onkeypress=keypress;
 
271
                document.onkeydown=keydown;
 
272
                timeout=window.setTimeout(update,100);
 
273
        }
 
274
        init();
 
275
}
 
276
ajaxterm.Terminal=function(id,width,height) {
 
277
        return new this.Terminal_ctor(id,width,height);
 
278
}
 
279