js/jslib.js

   1 Array.prototype.indexFromEnd = function(d) {
   2   var p = this;
   3
   4   if(d < 0)
   5     return p[p.length + d];
   6
   7   return p[d];
   8 }
   9
  10 qwebirc.util.dictCopy = function(d) {
  11   var n = {};
  12   for(var k in d)
  13     n[k] = d[k];
  14
  15   return n;
  16 }
  17
  18 /* how horribly inefficient */
  19 String.prototype.replaceAll = function(f, t) {
  20   //return new RegExp("/" + RegExp.escape(f) + "/g").replace(f, RegExp.escape(t));
  21   var i = this.indexOf(f);
  22   var c = this;
  23
  24   while(i > -1) {
  25     c = c.replace(f, t);
  26     i = c.indexOf(f);
  27   }
  28   return c;
  29 }
  30
  31 /* how horribly inefficient (again) */
  32 String.prototype.splitMax = function(by, max) {
  33   var items = this.split(by);
  34   var newitems = items.slice(0, max-1);
  35
  36   if(items.length >= max)
  37     newitems.push(items.slice(max-1).join(by));
  38
  39   return newitems;
  40 }
  41
  42
  43 /* returns the arguments */
  44 qwebirc.util.parseURI = function(uri) {
  45   var result = {}
  46
  47   var start = uri.indexOf('?');
  48   if(start == -1)
  49     return result;
  50
  51   var querystring = uri.substring(start + 1);
  52
  53   var args = querystring.split("&");
  54
  55   for(var i=0;i<args.length;i++) {
  56     var r = args[i].splitMax("=", 2);
  57     if(r.length < 2)
  58       continue;
  59
  60     result[unescape(r[0])] = unescape(r[1]);
  61   }
  62
  63   return result;
  64 }
  65
  66 qwebirc.util.DaysOfWeek = {
  67   0: "Sun",
  68   1: "Mon",
  69   2: "Tue",
  70   3: "Wed",
  71   4: "Thu",
  72   5: "Fri",
  73   6: "Sat"
  74 };
  75
  76 qwebirc.util.MonthsOfYear = {
  77   0: "Jan",
  78   1: "Feb",
  79   2: "Mar",
  80   3: "Apr",
  81   4: "May",
  82   5: "Jun",
  83   6: "Jul",
  84   7: "Aug",
  85   8: "Sep",
  86   9: "Oct",
  87   10: "Nov",
  88   11: "Dec"
  89 };
  90
  91 qwebirc.util.NBSPCreate = function(text, element) {
  92   var e = text.split("  ");
  93   for(var i=0;i<e.length;i++) {
  94     var tn = document.createTextNode(e[i]);
  95     element.appendChild(tn);
  96
  97     if(i != e.length - 1) {
  98       var e2 = new Element("span");
  99       e2.set("html", "&nbsp;&nbsp;");
 100       element.appendChild(e2);
 101     }
 102   }
 103 };
 104
 105 qwebirc.util.longtoduration = function(l) {
 106   var seconds = l % 60;
 107   var minutes = Math.floor((l % 3600) / 60);
 108   var hours = Math.floor((l % (3600 * 24)) / 3600);
 109   var days = Math.floor(l / (24*3600));
 110
 111   return days + " days " + hours + " hours " + minutes + " minutes " + seconds + " seconds";
 112 }
 113
 114 qwebirc.util.pad = function(x) {
 115   x = "" + x;
 116   if(x.length == 1)
 117     return "0" + x;
 118   return x
 119 }
 120
 121 RegExp.escape = function(text) {
 122   return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
 123 };
 124
 125 RegExp.fromIRCPattern = function(t) {
 126   /* escape everything but ? . and * */
 127   var t = t.replace(/[-[\]{}()+,\\^$|#\s]/g, "\\$&");
 128   t = t.split("");
 129   var out = [];
 130
 131   /* now process the rest */
 132   for(var i=0;i<t.length;i++) {
 133     var c = t[i];
 134     switch(c) {
 135       case '.':
 136         out.push("\\.");
 137         break;
 138       case '?':
 139         out.push(".");
 140         break;
 141       case '*':
 142         out.push(".*");
 143         break;
 144       default:
 145         out.push(c);
 146     }
 147   }
 148   return out.join("");
 149 }
 150
 151 qwebirc.ui.insertAt = function(position, parent, element) {
 152   if(!parent.childNodes || (position >= parent.childNodes.length)) {
 153     parent.appendChild(element);
 154   } else {
 155     parent.insertBefore(element, parent.childNodes[position]);
 156   }
 157 }
 158
 159 qwebirc.util.setCaretPos = function(obj, pos) {
 160   if($defined(obj.selectionStart)) {
 161     obj.focus();
 162     obj.setSelectionRange(pos, pos);
 163   } else if(obj.createTextRange) {
 164     var range = obj.createTextRange();
 165     range.move("character", pos);
 166     range.select();
 167   }
 168 }
 169
 170 qwebirc.util.setAtEnd = function(obj) {
 171   qwebirc.util.setCaretPos(obj.value.length);
 172 }
 173
 174 qwebirc.util.getCaretPos = function(element) {
 175   if($defined(element.selectionStart))
 176     return element.selectionStart;
 177
 178   if(document.selection) {
 179     element.focus();
 180     var sel = document.selection.createRange();
 181     sel.moveStart("character", -element.value.length);
 182     return sel.text.length;
 183   }
 184 }
 185
 186 qwebirc.util.browserVersion = function() {
 187   //return "engine: " + Browser.Engine.name + " platform: " + Browser.Platform.name + " user agent: " + navigator.userAgent;
 188   return navigator.userAgent;
 189 }
 190
 191 qwebirc.util.getEnclosedWord = function(text, position) {
 192   var l = text.split("");
 193   var buf = [];
 194
 195   if(text == "")
 196     return;
 197
 198   var start = position - 1;
 199   if(start < 0) {
 200     /* special case: starting with space */
 201     start = 0;
 202   } else {
 203     /* work back until we find the first space */
 204     for(;start>=0;start--) {
 205       if(l[start] == ' ') {
 206         start = start + 1;
 207         break;
 208       }
 209     }
 210   }
 211
 212   if(start < 0)
 213     start = 0;
 214
 215   var s = text.substring(start);
 216   var pos = s.indexOf(" ");
 217   if(pos != -1)
 218     s = s.substring(0, pos);
 219
 220   return [start, s];
 221 }
 222
 223 String.prototype.startsWith = function(what) {
 224   return this.substring(0, what.length) == what;
 225 }
 226
 227 /* NOT cryptographically secure! */
 228 qwebirc.util.randHexString = function(numBytes) {
 229   var getByte = function() {
 230     return (((1+Math.random())*0x100)|0).toString(16).substring(1);
 231   };
 232
 233   var l = [];
 234   for(var i=0;i<numBytes;i++)
 235     l.push(getByte());
 236
 237   return l.join("");
 238 }
 239
 240 qwebirc.util.importJS = function(name, watchFor, onload) {
 241   var script = document.createElement("script");
 242   script.type = "text/javascript";
 243   script.src = name;
 244
 245   if(Browser.Engine.trident) {
 246     /* HORRID */
 247     var checkFn = function() {
 248       if(eval("typeof " + watchFor) != "undefined") {
 249         onload();
 250       } else {
 251         checkFn.delay(100);
 252       }
 253     }
 254     checkFn();
 255   } else {
 256     script.onload = onload;
 257   }
 258   document.getElementsByTagName("head")[0].appendChild(script);
 259 }
 260
 261 qwebirc.util.createInput = function(type, parent, name, selected, id) {
 262   var r;
 263   if(Browser.Engine.trident) {
 264     if(name) {
 265       name = " name=\"" + escape(name) + "\"";
 266     } else {
 267       name = "";
 268     }
 269     if(id) {
 270       id = " id=\"" + escape(id) + "\"";
 271     } else {
 272       id = "";
 273     }
 274     try {
 275       return $(document.createElement("<input type=\"" + type + "\"" + name + id + " " + (selected?" checked":"") + "/>"));
 276     } catch(e) {
 277       /* fallthough, trying it the proper way... */
 278     }
 279   }
 280
 281   r = new Element("input");
 282   r.type = type;
 283   if(name)
 284     r.name = name;
 285   if(id)
 286     r.id = id;
 287
 288   if(selected)
 289     r.checked = true;
 290
 291   parent.appendChild(r);
 292   return r;
 293 }
 294
 295 /* From: www.webtoolkit.info */
 296 qwebirc.util.b64Table = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
 297 qwebirc.util.b64Encode = function(data) {
 298   var output = [];
 299   var table = qwebirc.util.b64Table;
 300   for(var i=0;i<data.length;) {
 301     var chr1 = data.charCodeAt(i++);
 302     var chr2 = data.charCodeAt(i++);
 303     var chr3 = data.charCodeAt(i++);
 304
 305     var enc1 = chr1 >> 2;
 306     var enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
 307     var enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
 308     var enc4 = chr3 & 63;
 309
 310     if(isNaN(chr2)) {
 311       enc3 = enc4 = 64;
 312     } else if(isNaN(chr3)) {
 313       enc4 = 64;
 314     }
 315
 316     output.push(table.charAt(enc1) + table.charAt(enc2) + table.charAt(enc3) + table.charAt(enc4));
 317   }
 318   return output.join("");
 319 }
 320
 321 /* From: www.webtoolkit.info */
 322 qwebirc.util.b64Decode = function(data) {
 323   data = data.replace(/[^A-Za-z0-9\+\/\=]/g, "");
 324
 325   var output = [];
 326   var table = qwebirc.util.b64Table;
 327
 328   /* grossly inefficient... so sue me */
 329   while(data.length % 4 != 0)
 330     data = data + "=";
 331
 332   for(var i=0;i<data.length;) {
 333     var enc1 = table.indexOf(data.charAt(i++));
 334     var enc2 = table.indexOf(data.charAt(i++));
 335     var enc3 = table.indexOf(data.charAt(i++));
 336     var enc4 = table.indexOf(data.charAt(i++));
 337
 338     var chr1 = (enc1 << 2) | (enc2 >> 4);
 339     var chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
 340     var chr3 = ((enc3 & 3) << 6) | enc4;
 341
 342     output.push(String.fromCharCode(chr1));
 343     if (enc3 != 64)
 344       output.push(String.fromCharCode(chr2));
 345     if (enc4 != 64)
 346       output.push(String.fromCharCode(chr3));
 347   }
 348
 349   return output.join("");
 350 }
 351
 352 qwebirc.util.composeAnd = function() {
 353  var xargs = arguments;
 354
 355   return function() {
 356     for(var i=0;i<xargs.length;i++)
 357       if(!xargs[i].apply(this, arguments))
 358         return false;
 359
 360     return true;
 361   }
 362 }
 363
 364 qwebirc.util.invertFn = function(fn) {
 365   return function() {
 366     return !fn.apply(this, arguments);
 367   }
 368 }
 369
 370 qwebirc.util.deviceHasKeyboard = function() {
 371   var determine = function() {
 372     if(Browser.Engine.ipod)
 373       return true;
 374
 375     var MOBILE_UAs = ["Nintendo Wii", " PIE", "BlackBerry", "IEMobile", "Windows CE", "Nokia", "Opera Mini", "Mobile", "mobile", "Pocket", "pocket", "Android"];
 376     /* safari not included because iphones/ipods send that, and we checked for iphone/ipod specifically above */
 377     var DESKTOP_UAs = ["Chrome", "Firefox", "Camino", "Iceweasel", "K-Meleon", "Konqueror", "SeaMonkey", "Windows NT", "Windows 9"];
 378
 379     var ua = navigator.userAgent;
 380
 381     var contains = function(v) {
 382       return ua.indexOf(v) > -1;
 383     }
 384
 385     for(var i=0;i<MOBILE_UAs.length;i++)
 386       if(contains(MOBILE_UAs[i]))
 387         return false;
 388
 389     for(var i=0;i<DESKTOP_UAs.length;i++)
 390       if(contains(DESKTOP_UAs[i]))
 391         return true;
 392
 393     return false;
 394   };
 395   var v = determine();
 396
 397   qwebirc.util.deviceHasKeyboard = function() {
 398     return v;
 399   }
 400
 401   return v;
 402 }
 403
 404 qwebirc.util.generateID_ID = 0;
 405 qwebirc.util.generateID = function() {
 406   return "qqa-" + qwebirc.util.generateID_ID++;
 407 }