/**
* @version $Id: jquery.glow.js 104 2009-10-24 17:39:56Z kent $
* @package zesk
* @subpackage jquery
* @author Kent M. Davidson http://www.razzed.com/
* @copyright Copyright © 2009, Market Acumen, Inc.
* Created on Thu Mar 19 15:27:08 EDT 2009 15:27:08
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/

(function ($) {
	$.fn.glow = function () {
		var clookup = {
			aliceblue: "f0f8ff",
			antiquewhite: "faebd7",
			aqua: "00ffff",
			aquamarine: "7fffd4",
			azure: "f0ffff",
			beige: "f5f5dc",
			bisque: "ffe4c4",
			black: "000000",
			blanchedalmond: "ffebcd",
			blue: "0000ff",
			blueviolet: "8a2be2",
			brown: "a52a2a",
			burlywood: "deb887",
			cadetblue: "5f9ea0",
			chartreuse: "7fff00",
			chocolate: "d2691e",
			coral: "ff7f50",
			cornflowerblue: "6495ed",
			cornsilk: "fff8dc",
			crimson: "dc143c",
			cyan: "00ffff",
			darkblue: "00008b",
			darkcyan: "008b8b",
			darkgoldenrod: "b8860b",
			darkgray: "a9a9a9",
			darkgrey: "a9a9a9",
			darkgreen: "006400",
			darkkhaki: "bdb76b",
			darkmagenta: "8b008b",
			darkolivegreen: "556b2f",
			darkorange: "ff8c00",
			darkorchid: "9932cc",
			darkred: "8b0000",
			darksalmon: "e9967a",
			darkseagreen: "8fbc8f",
			darkslateblue: "483d8b",
			darkslategray: "2f4f4f",
			darkslategrey: "2f4f4f",
			darkturquoise: "00ced1",
			darkviolet: "9400d3",
			deeppink: "ff1493",
			deepskyblue: "00bfff",
			dimgray: "696969",
			dimgrey: "696969",
			dodgerblue: "1e90ff",
			firebrick: "b22222",
			floralwhite: "fffaf0",
			forestgreen: "228b22",
			fuchsia: "ff00ff",
			gainsboro: "dcdcdc",
			ghostwhite: "f8f8ff",
			gold: "ffd700",
			goldenrod: "daa520",
			gray: "808080",
			grey: "808080",
			green: "008000",
			greenyellow: "adff2f",
			honeydew: "f0fff0",
			hotpink: "ff69b4",
			indianred: "cd5c5c",
			indigo: "4b0082",
			ivory: "fffff0",
			khaki: "f0e68c",
			lavender: "e6e6fa",
			lavenderblush: "fff0f5",
			lawngreen: "7cfc00",
			lemonchiffon: "fffacd",
			lightblue: "add8e6",
			lightcoral: "f08080",
			lightcyan: "e0ffff",
			lightgoldenrodyellow: "fafad2",
			lightgray: "d3d3d3",
			lightgrey: "d3d3d3",
			lightgreen: "90ee90",
			lightpink: "ffb6c1",
			lightsalmon: "ffa07a",
			lightseagreen: "20b2aa",
			lightskyblue: "87cefa",
			lightslategray: "778899",
			lightslategrey: "778899",
			lightsteelblue: "b0c4de",
			lightyellow: "ffffe0",
			lime: "00ff00",
			limegreen: "32cd32",
			linen: "faf0e6",
			magenta: "ff00ff",
			maroon: "800000",
			mediumaquamarine: "66cdaa",
			mediumblue: "0000cd",
			mediumorchid: "ba55d3",
			mediumpurple: "9370d8",
			mediumseagreen: "3cb371",
			mediumslateblue: "7b68ee",
			mediumspringgreen: "00fa9a",
			mediumturquoise: "48d1cc",
			mediumvioletred: "c71585",
			midnightblue: "191970",
			mintcream: "f5fffa",
			mistyrose: "ffe4e1",
			moccasin: "ffe4b5",
			navajowhite: "ffdead",
			navy: "000080",
			oldlace: "fdf5e6",
			olive: "808000",
			olivedrab: "6b8e23",
			orange: "ffa500",
			orangered: "ff4500",
			orchid: "da70d6",
			palegoldenrod: "eee8aa",
			palegreen: "98fb98",
			paleturquoise: "afeeee",
			palevioletred: "d87093",
			papayawhip: "ffefd5",
			peachpuff: "ffdab9",
			peru: "cd853f",
			pink: "ffc0cb",
			plum: "dda0dd",
			powderblue: "b0e0e6",
			purple: "800080",
			red: "ff0000",
			rosybrown: "bc8f8f",
			royalblue: "4169e1",
			saddlebrown: "8b4513",
			salmon: "fa8072",
			sandybrown: "f4a460",
			seagreen: "2e8b57",
			seashell: "fff5ee",
			sienna: "a0522d",
			silver: "c0c0c0",
			skyblue: "87ceeb",
			slateblue: "6a5acd",
			slategray: "708090",
			slategrey: "708090",
			snow: "fffafa",
			springgreen: "00ff7f",
			steelblue: "4682b4",
			tan: "d2b48c",
			teal: "008080",
			thistle: "d8bfd8",
			tomato: "ff6347",
			turquoise: "40e0d0",
			violet: "ee82ee",
			wheat: "f5deb3",
			white: "ffffff",
			whitesmoke: "f5f5f5",
			yellow: "ffff00",
			yellowgreen: "9acd32"
		};

		function nameToColor(n) {
			return clookup[(""+n).toLowerCase()] || null;
		}
		function re_rgba()
		{
			return new RegExp('rgba\\s*\\(\\s*([0-9]{1,3})\\s*,\\s*([0-9]{1,3})\\s*,\\s*([0-9]{1,3})\\s*\\,\\s*([0-9]{1,3})\\s*\\)');
		}
		function re_rgb()
		{
			return new RegExp('rgb\\s*\\(\\s*([0-9]{1,3})\\s*,\\s*([0-9]{1,3})\\s*,\\s*([0-9]{1,3})\\s*\\)');
		}
		function parseColor(c) {
			var r;
			var e = new RegExp('#([A-F0-9]{2})([a-fA-F0-9]{2})([A-F0-9]{2})','i');
			if (r = e.exec(c)) {
				return [parseInt(r[1],16), parseInt(r[2],16), parseInt(r[3],16)];
			}
			e = new RegExp('#([A-F0-9]{1})([A-F0-9]{1})([A-F0-9]{1})','i');
			if (r = e.exec(c)) {
				return [parseInt(r[1]+r[1],16), parseInt(r[2]+r[2],16), parseInt(r[3]+r[3],16)];
			}
			e = re_rgb();
			if (r = e.exec(c)) {
				return [parseInt(r[1],10), parseInt(r[2],10), parseInt(r[3],10)];
			}
			e = re_rgba();
			if (r = e.exec(c)) {
				return [parseInt(r[1],10), parseInt(r[2],10), parseInt(r[3],10), parseInt(r[4],10)];
			}
			if (r = nameToColor(c)) {
				return parseColor('#' + r);
			}
			if (window.console) {
				console.log('can not parse color ' + c);
			} else {
				//alert('can not parse color ' + c);
			}
			return false;
		}
		function colorMatters(c) {
			if (c == "inherit" || c == "transparent") {
				return false;
			}
			// Alpha-zero colors don't affect appearance at all
			var e = re_rgba();
			var r = e.exec(c);
			if (r && parseInt(r[4],10) == 0) {
				return false;
			}
			return true;
		}
		function printColor(r) {
			return '#' + (0x1000000 + parseInt(r[0],10)*0x10000 + parseInt(r[1],10)*0x100 + parseInt(r[2],10)).toString(16).slice(-6);
		}

		function finalBackgroundColor(e) {
			var bg;
			do {
				bg = e.css('background-color');
				if (colorMatters(bg)) {
					return bg;
				}
				bg = e[0].bgColor;
				if (bg) {
					return bg;
				}
				e = e.parent();
			} while (e.length > 0 && e.get(0).tagName);
			return arguments[1] || '#FFF';
		}

		function glowItem(duration, steps)
		{
			function glowFunction() {
				if (step < steps) {
					var c = [0,0,0];
					for (var i = 0; i < 3; i++) {
						c[i] = parseInt(srcc[i]) + (((parseInt(dstc[i]) - parseInt(srcc[i])) / steps) * step);
					}
					elem.css('background-color', printColor(c));
					step = step + 1;
					setTimeout(glowFunction, timeoutstep);
				} else {
					/* MSIE 6 chokes on "inherit" */
					//elem.css('background-color', $.support.style ? 'inherit' : '');
					elem.css('background-color', ocol);
					elem.attr('glowing', 0);
				}
			}

			var elem = $(this);
			if (elem.attr('glowing') == 1) {
				return;
			}
			elem.attr('glowing', 1);
			var ocol = $(elem).css('background-color');
			var dstc = parseColor(finalBackgroundColor(elem));
			if (!dstc) {
				return;
			}
			var step = 0;
			var timeoutstep = parseInt(duration / steps, 10);

			glowFunction.call(elem);
		}

		var srcc = parseColor(arguments[0] || '#FFFF99');
		if (!srcc) {
			return false;
		}
		var duration = arguments[1] || 1000;
		var steps = arguments[2] || 50;
		if (duration < 0 || !duration) {
			duration = 1000;
		}
		if (steps < 0 || !steps) {
			steps = 1;
		}
		$(this).each(function(i,x) { glowItem.call(x, duration, steps); });
	};
})(jQuery);