/*
* jQuery UI Panel @VERSION
*
* Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
* Dual licensed under the MIT (MIT-LICENSE.txt)
* and GPL (GPL-LICENSE.txt) licenses.
*
* http://docs.jquery.com/UI/Panel
*
* Depends:
*	jquery.ui.core.js
*	jquery.ui.widget.js
*/
(function($) {

    $.widget("ui.panel", {

        options: {
            icons: {
                header: "ui-icon-triangle-1-e",
                headerSelected: "ui-icon-triangle-1-s"
            }
        },

        _create: function() {
            this.element.addClass("ui-panel ui-widget");

            var self = this;
            this.headers = this.element
			.find("> li > :first-child,> :not(li):even")
			.addClass("ui-panel-header ui-helper-reset ui-state-default ui-corner-all")
			.bind("mouseenter.panel", function() {
			    if (self.options.disabled) {
			        return;
			    }
			    $(this).addClass('ui-state-hover');
			})
			.bind("mouseleave.panel", function() {
			    $(this).removeClass('ui-state-hover');
			})
			.bind("focus.panel", function() {
			    $(this).addClass('ui-state-focus');
			})
			.bind("blur.panel", function() {
			    $(this).removeClass('ui-state-focus');
			})
			.bind("click.panel", function(e) {
			    if (self.options.disabled) {
			        return;
			    }
			    self.click($(this));
			    return false;
			});
            this._createIcons();

            this.headers
			.next()
				.addClass("ui-panel-content ui-helper-reset ui-widget-content ui-corner-bottom")
				.hide();
        },

        destroy: function() {
            $.Widget.prototype.destroy.apply(this, arguments);
            this.element
			.removeClass("ui-panel ui-widget ui-helper-reset")
			.removeAttr("role");

            this.headers
			.unbind(".panel")
			.removeClass("ui-panel-header ui-helper-reset ui-state-default ui-corner-all ui-state-active ui-corner-top")
			.removeAttr("role").removeAttr("aria-expanded").removeAttr("tabindex");

            this.headers.find("a").removeAttr("tabindex");
            this._destroyIcons();
            var contents = this.headers.next().css("display", "").removeAttr("role").removeClass("ui-helper-reset ui-widget-content ui-corner-bottom ui-panel-content ui-panel-content-active");
        },

        _setOption: function(key, value) {
            $.Widget.prototype._setOption.apply(this, arguments);

            if (key == "icons") {
                this._destroyIcons();
                if (value) {
                    this._createIcons();
                }
            }

        },

        _createIcons: function() {
            var o = this.options;
            if (o.icons) {
                $("<span/>").addClass("ui-icon " + o.icons.header).prependTo(this.headers);
                this.headers.filter(".ui-state-active").find(".ui-icon").removeClass(o.icons.header).addClass(o.icons.headerSelected);
                this.element.addClass("ui-panel-icons");
            }
        },

        _destroyIcons: function() {
            this.headers.children(".ui-icon").remove();
            this.element.removeClass("ui-panel-icons");
        },

        click: function(header) {
            header.toggleClass("ui-state-active ui-corner-top ui-corner-all")
			.find(".ui-icon").toggleClass(this.options.icons.headerSelected).toggleClass(this.options.icons.header);
            header.next().toggleClass("ui-panel-content-active").slideToggle("fast");
        }
    });

} (jQuery));