/*global window,document,jQuery */

/*!
* Fitted: a jQuery Plugin
* @author: Trevor Morris (trovster)
* @modifiedBy: Richard Davies http://www.richarddavies.us
* @url: http://www.trovster.com/lab/code/plugins/jquery.fitted.js
* @documentation: http://www.trovster.com/lab/plugins/fitted/
* @published: 11/09/2008
* @updated: 26/02/2011
* @license Creative Commons Attribution Non-Commercial Share Alike 3.0 Licence
*          http://creativecommons.org/licenses/by-nc-sa/3.0/
*
* @notes:
* Also see BigTarget by Leevi Graham - http://newism.com.au/blog/post/58/bigtarget-js-increasing-the-size-of-clickable-targets/
*
*/
if (typeof jQuery !== 'undefined') {
    jQuery(function ($) {
        $.fn.extend({
            fitted: function (options) {
                var settings = $.extend({}, $.fn.fitted.defaults, options),
                    getSelectedText;

                getSelectedText = function () {
                    if (window.getSelection) {
                        return window.getSelection().toString();
                    } else if (document.getSelection) {
                        return document.getSelection();
                    } else if (document.selection) {
                        return document.selection.createRange().text;
                    }
                };

                return this.each(function () {
                    var $t  = $(this),
                        o   = $.metadata ? $.extend({}, settings, $t.metadata()) : settings,
                        $a,
                        href,
                        title;

                    if ($t.find(':has(a)')) {
                        $a      = $t.find('a:first');
                        href    = $a.attr('href');
                        title   = $a.attr('title');

                        /**
                        * Setup the Container
                        * Add the 'container' class defined in settings
                        * @event hover
                        * @event click
                        */
                        $t.addClass(o.className.container).hover(
                            function (event) {
                                var $$ = $(this);

                                // Add the 'hover' class defined in settings
                                $$.addClass(o.className.hover);

                                // Add the Title Attribute if the option is set, and it's not empty
                                if (typeof o.title !== 'undefined' && o.title === true && title !== '') {
                                    $$.attr('title', title);
                                }

                                // Set the Status bar string if the option is set
                                if (typeof o.status !== 'undefined' && o.status === true) {
                                    if ($.browser.safari) {
                                        // Safari Formatted Status bar string
                                        window.status = 'Go to "' + href + '"';
                                    } else {
                                        // Default Formatted Status bar string
                                        window.status = href;
                                    }
                                }
                            },
                            function (event) {
                                var $$ = $(this);

                                // Remove the Title Attribute if it was set by the Plugin
                                if (typeof o.title !== 'undefined' && o.title === true && title !== '') {
                                    $$.removeAttr('title');
                                }

                                // Remove the 'hover' class defined in settings
                                $$.removeClass(o.className.hover);

                                // Remove the Status bar string
                                window.status = '';
                            }
                        ).bind('click.fitted', function (event) {
                            // Don't do anything if selecting text inside fitted element
                            if (getSelectedText().length > 0) {
                                return true;
                            }

                            // Don't override clicks on form elements
                            if ($(event.target).is('input, select, option, optgroup textarea, button')) {
                                return true;
                            }

                            if ($(event.target).closest('a').length) {
                                $a      = $(event.target).closest('a');
                                href    = $a.attr('href');
                            }

                            // Trigger the Anchor / Follow the Link
                            if ($a.is('[rel*=external]')) {
                                window.open(href);
                                event.preventDefault();
                            } else {
                                window.location = href;
                            }
                        });
                    }
                });
            }
        });
        
        $.fn.fitted.defaults = {
            title:  true,
            status: false,
            className: {
                'container':    'fitted',
                'hover':        'hovered'
            }
        };
        
    }(jQuery));
}