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 = {}
  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[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 qwebirc.ui.insertAt = function(position, parent, element) {
 125   if(!parent.childNodes || (position >= parent.childNodes.length)) {
 126     parent.appendChild(element);
 127   } else {
 128     parent.insertBefore(element, parent.childNodes[position]);
 129   }
 130 }
 131
 132 qwebirc.util.setCaretPos = function(obj, pos) {
 133   if($defined(obj.selectionStart)) {
 134     obj.focus();
 135     obj.setSelectionRange(pos, pos);
 136   } else if(obj.createTextRange) {
 137     var range = obj.createTextRange();
 138     range.move("character", pos);
 139     range.select();
 140   }
 141 }
 142
 143 qwebirc.util.setAtEnd = function(obj) {
 144   qwebirc.util.setCaretPos(obj.value.length);
 145 }
 146
 147 qwebirc.util.getCaretPos = function(element) {
 148   if($defined(element.selectionStart))
 149     return element.selectionStart;
 150
 151   if(document.selection) {
 152     element.focus();
 153     var sel = document.selection.createRange();
 154     sel.moveStart("character", -element.value.length);
 155     return sel.text.length;
 156   }
 157 }
 158
 159 qwebirc.util.browserVersion = function() {
 160   //return "engine: " + Browser.Engine.name + " platform: " + Browser.Platform.name + " user agent: " + navigator.userAgent;
 161   return navigator.userAgent;
 162 }
 163
 164 qwebirc.util.getEnclosedWord = function(text, position) {
 165   var l = text.split("");
 166   var buf = [];
 167
 168   if(text == "")
 169     return;
 170
 171   var start = position - 1;
 172   if(start < 0) {
 173     /* special case: starting with space */
 174     start = 0;
 175   } else {
 176     /* work back until we find the first space */
 177     for(;start>=0;start--) {
 178       if(l[start] == ' ') {
 179         start = start + 1;
 180         break;
 181       }
 182     }
 183   }
 184
 185   if(start < 0)
 186     start = 0;
 187
 188   var s = text.substring(start);
 189   var pos = s.indexOf(" ");
 190   if(pos != -1)
 191     s = s.substring(0, pos);
 192
 193   return [start, s];
 194 }
 195
 196 String.prototype.startsWith = function(what) {
 197   return this.substring(0, what.length) == what;
 198 }
 199
 200 /* NOT cryptographically secure! */
 201 qwebirc.util.randHexString = function(numBytes) {
 202   var getByte = function() {
 203     return (((1+Math.random())*0x100)|0).toString(16).substring(1);
 204   };
 205
 206   var l = [];
 207   for(var i=0;i<numBytes;i++)
 208     l.push(getByte());
 209
 210   return l.join("");
 211 }
 212
 213 qwebirc.util.importJS = function(name, watchFor, onload) {
 214   var script = document.createElement("script");
 215   script.type = "text/javascript";
 216   script.src = name;
 217
 218   if(Browser.Engine.trident) {
 219     /* HORRID */
 220     var checkFn = function() {
 221       if(eval("typeof " + watchFor) != "undefined") {
 222         onload();
 223       } else {
 224         checkFn.delay(100);
 225       }
 226     }
 227     checkFn();
 228   } else {
 229     script.onload = onload;
 230   }
 231   document.getElementsByTagName("head")[0].appendChild(script);
 232 }
 233
 234 qwebirc.util.createInput = function(type, parent, name, selected, id) {
 235   var r;
 236   if(Browser.Engine.trident) {
 237     if(name) {
 238       name = " name=\"" + escape(name) + "\"";
 239     } else {
 240       name = "";
 241     }
 242     if(id) {
 243       id = " id=\"" + escape(id) + "\"";
 244     } else {
 245       id = "";
 246     }
 247     r = $(document.createElement("<input type=\"" + type + "\"" + name + id + " " + (selected?" checked":"") + "/>"));
 248   } else {
 249     r = new Element("input");
 250     r.type = type;
 251     if(name)
 252       r.name = name;
 253     if(id)
 254       r.id = id;
 255
 256     if(selected)
 257       r.checked = true;
 258   }
 259
 260   parent.appendChild(r);
 261   return r;
 262 }
 263
 264 /* From: www.webtoolkit.info */
 265 qwebirc.util.b64Table = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
 266 qwebirc.util.b64Encode = function(data) {
 267   var output = [];
 268   var table = qwebirc.util.b64Table;
 269   for(var i=0;i<data.length;) {
 270     var chr1 = data.charCodeAt(i++);
 271     var chr2 = data.charCodeAt(i++);
 272     var chr3 = data.charCodeAt(i++);
 273
 274     var enc1 = chr1 >> 2;
 275     var enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
 276     var enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
 277     var enc4 = chr3 & 63;
 278
 279     if(isNaN(chr2)) {
 280       enc3 = enc4 = 64;
 281     } else if(isNaN(chr3)) {
 282       enc4 = 64;
 283     }
 284
 285     output.push(table.charAt(enc1) + table.charAt(enc2) + table.charAt(enc3) + table.charAt(enc4));
 286   }
 287   return output.join("");
 288 }
 289
 290 /* From: www.webtoolkit.info */
 291 qwebirc.util.b64Decode = function(data) {
 292   data = data.replace(/[^A-Za-z0-9\+\/\=]/g, "");
 293
 294   var output = [];
 295   var table = qwebirc.util.b64Table;
 296
 297   /* grossly inefficient... so sue me */
 298   while(data.length % 4 != 0)
 299     data = data + "=";
 300
 301   for(var i=0;i<data.length;) {
 302     var enc1 = table.indexOf(data.charAt(i++));
 303     var enc2 = table.indexOf(data.charAt(i++));
 304     var enc3 = table.indexOf(data.charAt(i++));
 305     var enc4 = table.indexOf(data.charAt(i++));
 306
 307     var chr1 = (enc1 << 2) | (enc2 >> 4);
 308     var chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
 309     var chr3 = ((enc3 & 3) << 6) | enc4;
 310
 311     output.push(String.fromCharCode(chr1));
 312     if (enc3 != 64)
 313       output.push(String.fromCharCode(chr2));
 314     if (enc4 != 64)
 315       output.push(String.fromCharCode(chr3));
 316   }
 317
 318   return output.join("");
 319 }
 320
 321 qwebirc.util.composeAnd = function() {
 322  var xargs = arguments;
 323
 324   return function() {
 325     for(var i=0;i<xargs.length;i++)
 326       if(!xargs[i].apply(this, arguments))
 327         return false;
 328
 329     return true;
 330   }
 331 }
 332
 333 qwebirc.util.invertFn = function(fn) {
 334   return function() {
 335     return !fn.apply(this, arguments);
 336   }
 337 }
 338
 339 qwebirc.util.deviceHasKeyboard = function() {
 340   var determine = function() {
 341     if(Browser.Engine.ipod)
 342       return true;
 343
 344     var MOBILE_UAs = ["Nintendo Wii", " PIE", "BlackBerry", "IEMobile", "Windows CE", "Nokia", "Opera Mini", "Mobile", "mobile", "Pocket", "pocket", "Android"];
 345     /* safari not included because iphones/ipods send that, and we checked for iphone/ipod specifically above */
 346     var DESKTOP_UAs = ["Chrome", "Firefox", "Camino", "Iceweasel", "K-Meleon", "Konqueror", "SeaMonkey", "Windows NT", "Windows 9"];
 347
 348     var ua = navigator.userAgent;
 349
 350     var contains = function(v) {
 351       return ua.indexOf(v) > -1;
 352     }
 353
 354     for(var i=0;i<MOBILE_UAs.length;i++)
 355       if(contains(MOBILE_UAs[i]))
 356         return false;
 357
 358     for(var i=0;i<DESKTOP_UAs.length;i++)
 359       if(contains(DESKTOP_UAs[i]))
 360         return true;
 361
 362     return false;
 363   };
 364   var v = determine();
 365
 366   qwebirc.util.deviceHasKeyboard = function() {
 367     return v;
 368   }
 369
 370   return v;
 371 }
 372
 373 qwebirc.util.generateID_ID = 0;
 374 qwebirc.util.generateID = function() {
 375   return "qqa-" + qwebirc.util.generateID_ID++;
 376 }