/*
*  Adds an annoying Clippy with tips on the page
*  @author:  H. Yankov (hristo.yankov at gmail dot com)
*  @version: 1.0.2 (Jan/19/2011)
*	http://yankov.us
*/

var __clippyOpts;
var __paddingX = 50;
var __paddingY = 50;

function __changeClippyText() {
    var msg = __clippyOpts.hints[__getRandomInt(0, __clippyOpts.hints.length - 1)];
    $("div.clippyText").html(msg + "<hr /><button><u>J</u>a</button>&nbsp;<button><u>N</u>ei</button></div>");
    setTimeout("__changeClippyText();", __clippyOpts.hintChangeTimeOut);
}

function __relocateClippy() {
    var x = __getRandomInt(10, $(window).width() - __paddingX);
    var y = __getRandomInt(10, $(window).height() - __paddingY);
    $("div.clippyContainer").css({ left: x, top: y });
}

function __getRandomInt(min, max) {
    return Math.floor(Math.random() * (max - min + 1)) + min;
}

(function ($) {
    $.fn.addClippy = function (options) {
        var targetNode = $(this);

        // Init
        $.fn.addClippy.defaults = {
            initialPosition: { left: 100, top: 100 },
            initialPositionRandom: false,
            hints: [],
            hintChangeTimeOut: 10000,
            icon: '../images/Clipit_knock.gif',
            initialText: 'It looks like you need help',
            relocateOnHover: false,
            onClickDelegate: function () { }
        }
        __clippyOpts = $.extend({}, $.fn.addClippy.defaults, options);

        // Add Clippy's DOM to the page
        targetNode.append(
		"<div class='clippyContainer'>" +
			"<div class='clippyIcon'><img src='" + __clippyOpts.icon + "'></div>" +
			"<div class='clippyText'>" + __clippyOpts.initialText + "<hr /><button><u>J</u>a</button>&nbsp;<button><u>N</u>ei</button></div>" +
			"<div class='clippyClear'></div>" +
		"</div>"
	);

        // Determine the paddings, when the image is loaded
        $("div.clippyIcon > img").load(function () {
            __paddingX = $("div.clippyIcon > img").width() + $("div.clippyText").width();
            __paddingY = $("div.clippyIcon > img").height();
        });

        // Clippy should be positioned randomly
        if (__clippyOpts.initialPositionRandom)
            __relocateClippy();
        // Clippy should have a fixed position
        else
            $("div.clippyContainer").css(__clippyOpts.initialPosition);

        // Execute a delegate function if Clippy is ever clicked
        $("div.clippyIcon").click(__clippyOpts.onClickDelegate);

        // Clippy should be repositioned on hover. LOL.
        if (__clippyOpts.relocateOnHover)
            $("div.clippyIcon,div.clippyText").hover(__relocateClippy, function () { });

        // Set the timer job to change the hints
        setTimeout("__changeClippyText();", __clippyOpts.hintChangeTimeOut);
    };
})(jQuery);