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Viewing changes to tools/ajaxterm/ajaxterm.js

  • Committer: Eric Day
  • Date: 2010-10-21 18:49:51 UTC
  • mto: This revision was merged to the branch mainline in revision 377.
  • Revision ID: eday@oddments.org-20101021184951-x0vs3s8y7mc0aeyy
PEP8 and pylint cleanup. There should be no functional changes here, just style changes to get violations down.

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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