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 /* returns the arguments */
  43 qwebirc.util.parseURI = function(uri) {
  44   var result = new QHash();
  45
  46   var start = uri.indexOf('?');
  47   if(start == -1)
  48     return result;
  49
  50   var querystring = uri.substring(start + 1);
  51
  52   var args = querystring.split("&");
  53
  54   for(var i=0;i<args.length;i++) {
  55     var r = args[i].splitMax("=", 2);
  56     if(r.length < 2)
  57       continue;
  58
  59     result.put(unescape(r[0]), unescape(r[1]));
  60   }
  61
  62   return result;
  63 };
  64
  65 qwebirc.util.DaysOfWeek = {
  66   0: "Sun",
  67   1: "Mon",
  68   2: "Tue",
  69   3: "Wed",
  70   4: "Thu",
  71   5: "Fri",
  72   6: "Sat"
  73 };
  74
  75 qwebirc.util.MonthsOfYear = {
  76   0: "Jan",
  77   1: "Feb",
  78   2: "Mar",
  79   3: "Apr",
  80   4: "May",
  81   5: "Jun",
  82   6: "Jul",
  83   7: "Aug",
  84   8: "Sep",
  85   9: "Oct",
  86   10: "Nov",
  87   11: "Dec"
  88 };
  89
  90 qwebirc.util.NBSPCreate = function(text, element) {
  91   var e = text.split("  ");
  92   for(var i=0;i<e.length;i++) {
  93     var tn = document.createTextNode(e[i]);
  94     element.appendChild(tn);
  95
  96     if(i != e.length - 1) {
  97       var e2 = new Element("span");
  98       e2.set("html", "&nbsp;&nbsp;");
  99       element.appendChild(e2);
 100     }
 101   }
 102 };
 103
 104 qwebirc.util.longtoduration = function(l) {
 105   var seconds = l % 60;
 106   var minutes = Math.floor((l % 3600) / 60);
 107   var hours = Math.floor((l % (3600 * 24)) / 3600);
 108   var days = Math.floor(l / (24*3600));
 109
 110   return days + " days " + hours + " hours " + minutes + " minutes " + seconds + " seconds";
 111 }
 112
 113 qwebirc.util.pad = function(x) {
 114   x = "" + x;
 115   if(x.length == 1)
 116     return "0" + x;
 117   return x
 118 }
 119
 120 RegExp.escape = function(text) {
 121   return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
 122 };
 123
 124 RegExp.fromIRCPattern = function(t) {
 125   /* escape everything but ? . and * */
 126   var t = t.replace(/[-[\]{}()+,\\^$|#\s]/g, "\\$&");
 127   t = t.split("");
 128   var out = [];
 129
 130   /* now process the rest */
 131   for(var i=0;i<t.length;i++) {
 132     var c = t[i];
 133     switch(c) {
 134       case '.':
 135         out.push("\\.");
 136         break;
 137       case '?':
 138         out.push(".");
 139         break;
 140       case '*':
 141         out.push(".*");
 142         break;
 143       default:
 144         out.push(c);
 145     }
 146   }
 147   return out.join("");
 148 }
 149
 150 qwebirc.ui.insertAt = function(position, parent, element) {
 151   if(!parent.childNodes || (position >= parent.childNodes.length)) {
 152     parent.appendChild(element);
 153   } else {
 154     parent.insertBefore(element, parent.childNodes[position]);
 155   }
 156 }
 157
 158 qwebirc.util.setCaretPos = function(obj, pos) {
 159   if($defined(obj.selectionStart)) {
 160     obj.focus();
 161     obj.setSelectionRange(pos, pos);
 162   } else if(obj.createTextRange) {
 163     var range = obj.createTextRange();
 164     range.move("character", pos);
 165     range.select();
 166   }
 167 }
 168
 169 qwebirc.util.setAtEnd = function(obj) {
 170   qwebirc.util.setCaretPos(obj.value.length);
 171 }
 172
 173 qwebirc.util.getCaretPos = function(element) {
 174   if($defined(element.selectionStart))
 175     return element.selectionStart;
 176
 177   if(document.selection) {
 178     element.focus();
 179     var sel = document.selection.createRange();
 180     sel.moveStart("character", -element.value.length);
 181     return sel.text.length;
 182   }
 183 }
 184
 185 qwebirc.util.browserVersion = function() {
 186   //return "engine: " + Browser.Engine.name + " platform: " + Browser.Platform.name + " user agent: " + navigator.userAgent;
 187   return navigator.userAgent;
 188 }
 189
 190 qwebirc.util.getEnclosedWord = function(text, position) {
 191   var l = text.split("");
 192   var buf = [];
 193
 194   if(text == "")
 195     return;
 196
 197   var start = position - 1;
 198   if(start < 0) {
 199     /* special case: starting with space */
 200     start = 0;
 201   } else {
 202     /* work back until we find the first space */
 203     for(;start>=0;start--) {
 204       if(l[start] == ' ') {
 205         start = start + 1;
 206         break;
 207       }
 208     }
 209   }
 210
 211   if(start < 0)
 212     start = 0;
 213
 214   var s = text.substring(start);
 215   var pos = s.indexOf(" ");
 216   if(pos != -1)
 217     s = s.substring(0, pos);
 218
 219   return [start, s];
 220 }
 221
 222 String.prototype.startsWith = function(what) {
 223   return this.substring(0, what.length) == what;
 224 }
 225
 226 /* NOT cryptographically secure! */
 227 qwebirc.util.randHexString = function(numBytes) {
 228   var getByte = function() {
 229     return (((1+Math.random())*0x100)|0).toString(16).substring(1);
 230   };
 231
 232   var l = [];
 233   for(var i=0;i<numBytes;i++)
 234     l.push(getByte());
 235
 236   return l.join("");
 237 }
 238
 239 qwebirc.util.importJS = function(name, watchFor, onload) {
 240   var script = document.createElement("script");
 241   script.type = "text/javascript";
 242   script.src = name;
 243
 244   if(Browser.Engine.trident) {
 245     /* HORRID */
 246     var checkFn = function() {
 247       if(eval("typeof " + watchFor) != "undefined") {
 248         onload();
 249       } else {
 250         checkFn.delay(100);
 251       }
 252     }
 253     checkFn();
 254   } else {
 255     script.onload = onload;
 256   }
 257   document.getElementsByTagName("head")[0].appendChild(script);
 258 }
 259
 260 qwebirc.util.createInput = function(type, parent, name, selected, id) {
 261   var r;
 262   if(Browser.Engine.trident) {
 263     if(name) {
 264       name = " name=\"" + escape(name) + "\"";
 265     } else {
 266       name = "";
 267     }
 268     if(id) {
 269       id = " id=\"" + escape(id) + "\"";
 270     } else {
 271       id = "";
 272     }
 273     try {
 274       return $(document.createElement("<input type=\"" + type + "\"" + name + id + " " + (selected?" checked":"") + "/>"));
 275     } catch(e) {
 276       /* fallthough, trying it the proper way... */
 277     }
 278   }
 279
 280   r = new Element("input");
 281   r.type = type;
 282   if(name)
 283     r.name = name;
 284   if(id)
 285     r.id = id;
 286
 287   if(selected)
 288     r.checked = true;
 289
 290   parent.appendChild(r);
 291   return r;
 292 }
 293
 294 /* From: www.webtoolkit.info */
 295 qwebirc.util.b64Table = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
 296 qwebirc.util.b64Encode = function(data) {
 297   var output = [];
 298   var table = qwebirc.util.b64Table;
 299   for(var i=0;i<data.length;) {
 300     var chr1 = data.charCodeAt(i++);
 301     var chr2 = data.charCodeAt(i++);
 302     var chr3 = data.charCodeAt(i++);
 303
 304     var enc1 = chr1 >> 2;
 305     var enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
 306     var enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
 307     var enc4 = chr3 & 63;
 308
 309     if(isNaN(chr2)) {
 310       enc3 = enc4 = 64;
 311     } else if(isNaN(chr3)) {
 312       enc4 = 64;
 313     }
 314
 315     output.push(table.charAt(enc1) + table.charAt(enc2) + table.charAt(enc3) + table.charAt(enc4));
 316   }
 317   return output.join("");
 318 }
 319
 320 /* From: www.webtoolkit.info */
 321 qwebirc.util.b64Decode = function(data) {
 322   data = data.replace(/[^A-Za-z0-9\+\/\=]/g, "");
 323
 324   var output = [];
 325   var table = qwebirc.util.b64Table;
 326
 327   /* grossly inefficient... so sue me */
 328   while(data.length % 4 != 0)
 329     data = data + "=";
 330
 331   for(var i=0;i<data.length;) {
 332     var enc1 = table.indexOf(data.charAt(i++));
 333     var enc2 = table.indexOf(data.charAt(i++));
 334     var enc3 = table.indexOf(data.charAt(i++));
 335     var enc4 = table.indexOf(data.charAt(i++));
 336
 337     var chr1 = (enc1 << 2) | (enc2 >> 4);
 338     var chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
 339     var chr3 = ((enc3 & 3) << 6) | enc4;
 340
 341     output.push(String.fromCharCode(chr1));
 342     if (enc3 != 64)
 343       output.push(String.fromCharCode(chr2));
 344     if (enc4 != 64)
 345       output.push(String.fromCharCode(chr3));
 346   }
 347
 348   return output.join("");
 349 }
 350
 351 qwebirc.util.composeAnd = function() {
 352  var xargs = arguments;
 353
 354   return function() {
 355     for(var i=0;i<xargs.length;i++)
 356       if(!xargs[i].apply(this, arguments))
 357         return false;
 358
 359     return true;
 360   }
 361 }
 362
 363 qwebirc.util.invertFn = function(fn) {
 364   return function() {
 365     return !fn.apply(this, arguments);
 366   }
 367 }
 368
 369 qwebirc.util.deviceHasKeyboard = function() {
 370   var determine = function() {
 371     if(Browser.Engine.ipod)
 372       return true;
 373
 374     var MOBILE_UAs = ["Nintendo Wii", " PIE", "BlackBerry", "IEMobile", "Windows CE", "Nokia", "Opera Mini", "Mobile", "mobile", "Pocket", "pocket", "Android"];
 375     /* safari not included because iphones/ipods send that, and we checked for iphone/ipod specifically above */
 376     var DESKTOP_UAs = ["Chrome", "Firefox", "Camino", "Iceweasel", "K-Meleon", "Konqueror", "SeaMonkey", "Windows NT", "Windows 9"];
 377
 378     var ua = navigator.userAgent;
 379
 380     var contains = function(v) {
 381       return ua.indexOf(v) > -1;
 382     }
 383
 384     for(var i=0;i<MOBILE_UAs.length;i++)
 385       if(contains(MOBILE_UAs[i]))
 386         return false;
 387
 388     for(var i=0;i<DESKTOP_UAs.length;i++)
 389       if(contains(DESKTOP_UAs[i]))
 390         return true;
 391
 392     return false;
 393   };
 394   var v = determine();
 395
 396   qwebirc.util.deviceHasKeyboard = function() {
 397     return v;
 398   }
 399
 400   return v;
 401 }
 402
 403 qwebirc.util.generateID_ID = 0;
 404 qwebirc.util.generateID = function() {
 405   return "qqa-" + qwebirc.util.generateID_ID++;
 406 }
 407
 408 qwebirc.util.__log = function(x) {
 409   if(QWEBIRC_DEBUG) {
 410     if(typeof console == "undefined") {
 411       alert("log: " + x);
 412     } else {
 413       console.log(x);
 414     }
 415   }
 416 };
 417
 418 qwebirc.util.logger = {
 419   log: function(x) { qwebirc.util.__log("L " + x) },
 420   info: function(x) { qwebirc.util.__log("I " + x) },
 421   error: function(x) { qwebirc.util.__log("E " + x) },
 422   warn: function(x) { qwebirc.util.__log("W " + x) }
 423 };
 424
 425 qwebirc.util.log = qwebirc.util.logger.log;