favicon-of-my-color.ubiq.js

CmdUtils.CreateCommand({
  name: "favicon-of-my-color",
  takes: {'CSS color': noun_arb_text},
  execute: function(inp){
    var doc = CmdUtils.getDocument(), link = doc.createElement('link');
    link.href = this._canvas(inp).toDataURL();
    link.rel = 'shortcut icon';
    doc.body.appendChild(link);
  },
  preview: function(pbl, inp){
    jQuery(pbl).empty().append(this._canvas(inp));
  },
  previewDelay: 333,
  _canvas: function(inp){
    var canvas = jQuery('<canvas>')[0], size = 32, half = size / 2;
    canvas.width = canvas.height = size;
    with(canvas.getContext('2d')){
      fillStyle = inp.text || 'silver';
      arc(half, half, half - 1, 0, Math.PI * 2, false);
      fill();
    }
    return canvas;
  },
  inspiredBy: 'http://gist.github.com/47877',
  author: 'satyr'.link('http://d.hatena.ne.jp/murky-satyr'), license: 'MIT',
});