js/ui/colour.js

   1 qwebirc.ui.Colourise = function(line, entity, execfn, cmdfn, window) {
   2   var fg;
   3   var bg;
   4   var underline = false;
   5   var bold = false;
   6   var italic = false;
   7   var autoNickColour = false;
   8
   9   var out = [];
  10   var xline = line.split("");
  11   var element = document.createElement("span");
  12
  13   entity.addClass("colourline");
  14
  15   function isNum(x) {
  16     return x >= '0' && x <= '9';
  17   }
  18
  19   function parseColours(xline, i) {
  20     if(!isNum(xline[i + 1])) {
  21       fg = undefined;
  22       bg = undefined;
  23       return i;
  24     }
  25     i++;
  26     if(isNum(xline[i + 1])) {
  27       fg = parseInt(xline[i] + xline[i + 1]);
  28       i++;
  29     } else {
  30       fg = parseInt(xline[i]);
  31     }
  32     if(xline[i + 1] != ",")
  33       return i;
  34     if(!isNum(xline[i + 2]))
  35       return i;
  36     i+=2;
  37
  38     if(isNum(xline[i + 1])) {
  39       bg = parseInt(xline[i] + xline[i + 1]);
  40       i++;
  41     } else {
  42       bg = parseInt(xline[i]);
  43     }
  44     return i;
  45   }
  46
  47   function emitEndToken() {
  48     var data = "";
  49     if(out.length > 0) {
  50       var o = out.join("");
  51       if (execfn) {
  52         data = qwebirc.ui.urlificate(element, o, execfn, cmdfn, window);
  53       } else {
  54         data = o;
  55         element.appendChild(document.createTextNode(o));
  56       }
  57       entity.appendChild(element);
  58       out = [];
  59     }
  60     element = document.createElement("span");
  61     return data;
  62   }
  63
  64   function emitStartToken() {
  65     if(autoNickColour)
  66       return element;
  67
  68     var classes = []
  69     if(fg != undefined)
  70       classes.push("Xc" + fg);
  71     if(bg != undefined)
  72       classes.push("Xbc" + bg);
  73     if(bold)
  74       classes.push("Xb");
  75     if(underline)
  76       classes.push("Xu");
  77     if(italic)
  78       classes.push("Xi");
  79     element.className = classes.join(" ");
  80   }
  81
  82   var nickColouring = window.parentObject.uiOptions.NICK_COLOURS; /* HACK */
  83   var capturingNick = false;
  84   for(var i=0;i<xline.length;i++) {
  85     var lc = xline[i];
  86
  87     if(nickColouring) {
  88       if(!capturingNick) {
  89         if(lc == "\x00") {
  90           capturingNick = true;
  91           emitEndToken();
  92           continue;
  93         }
  94       } else {
  95         if(lc != "\x00") {
  96           out.push(lc);
  97         } else {
  98           autoNickColour = true;
  99           var e = emitStartToken();
 100           var text = emitEndToken();
 101
 102           var c = text.toHSBColour(window.client);
 103           if($defined(c))
 104             e.style.color = c.rgbToHex();
 105           capturingNick = autoNickColour = false;
 106         }
 107         continue;
 108       }
 109     } else if(lc == "\x00") {
 110       continue;
 111     }
 112
 113     if(lc == "\x02") {
 114       emitEndToken();
 115
 116       bold = !bold;
 117
 118       emitStartToken();
 119     } else if(lc == "\x1F") {
 120       emitEndToken();
 121
 122       underline = !underline;
 123
 124       emitStartToken();
 125     } else if(lc == "\x1D") {
 126       emitEndToken();
 127
 128       italic = !italic;
 129
 130       emitStartToken();
 131     } else if(lc == "\x0F") {
 132       emitEndToken();
 133
 134       fg = undefined;
 135       bg = undefined;
 136       underline = false;
 137       italic = false;
 138       bold = false;
 139     } else if(lc == "\x03") {
 140       emitEndToken();
 141
 142       i = parseColours(xline, i);
 143       if(bg >= 99)
 144         bg = undefined;
 145       if(fg >= 99)
 146         fg = undefined;
 147
 148       emitStartToken();
 149     } else {
 150       out.push(lc);
 151     }
 152   }
 153
 154   emitEndToken();
 155 }
 156
 157 String.prototype.toHSBColour = function(client) {
 158   var lower = client.toIRCLower(client.stripPrefix(this));
 159   if(lower == client.lowerNickname)
 160     return null;
 161
 162   var hash = 0;
 163   for(var i=0;i<lower.length;i++)
 164     hash = 31 * hash + lower.charCodeAt(i);
 165
 166   var hue = Math.abs(hash) % 360;
 167
 168   return new Color([hue, 70, 60], "hsb");
 169 }