/*
 * jQuery Notify UI Widget 1.4
 * Copyright (c) 2010 Eric Hynds
 *
 * http://www.erichynds.com/jquery/a-jquery-ui-growl-ubuntu-notification-widget/
 *
 * Depends:
 *   - jQuery 1.4
 *   - jQuery UI 1.8 widget factory
 *
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php
 *   http://www.gnu.org/licenses/gpl.html
 *
*/
(function($){

$.widget("ech.notify", {
    options: {
	speed: 500,
	expires: 5000,
	stack: 'below',
	custom: false
    },
    _create: function(){
	var self = this;
	this.templates = {};
	this.keys = [];
	
	// build and save templates
	this.element.addClass("ui-notify").children().addClass("ui-notify-message ui-notify-message-style").each(function(i){
	    var key = this.id || i;
	    self.keys.push(key);
	    self.templates[key] = $(this).removeAttr("id").wrap("<div></div>").parent().html(); // because $(this).andSelf().html() no workie
	}).end().empty().show();
    },
    create: function(template, msg, opts){
	if(typeof template === "object"){
	    opts = msg;
	    msg = template;
	    template = null;
	}
	
	var tpl = this.templates[ template || this.keys[0]];
	
	// remove default styling class if rolling w/ custom classes
	if(opts && opts.custom){
	    tpl = $(tpl).removeClass("ui-notify-message-style").wrap("<div></div>").parent().html();
	}
	
	// return a new notification instance
	return new $.ech.notify.instance(this)._create(msg, $.extend({}, this.options, opts), tpl);
    }
});

// instance constructor
$.extend($.ech.notify, {
    instance: function(widget){
	this.parent = widget;
	this.isOpen = false;
    }
});

// instance methods
$.extend($.ech.notify.instance.prototype, {
    _create: function(params, options, template){
	this.options = options;
	
	var self = this,
	    
	    // build html template
	    html = template.replace(/#(?:\{|%7B)(.*?)(?:\}|%7D)/g, function($1, $2){
		return ($2 in params) ? params[$2] : '';
	    }),
	    
	    // the actual message
	    m = (this.element = $(html)),
	    
	    // close link
	    closelink = m.find(".ui-notify-close");
	
	// clickable?
	if(typeof this.options.click === "function"){
	    m.addClass("ui-notify-click").bind("click", function(e){
		self._trigger("click", e, self);
	    });
	}
	
	// show close link?
	if(closelink.length){
	    closelink.bind("click", function(){
		self.close();
		return false;
	    });
	}
	
	this.open();
	
	// auto expire?
	if(typeof options.expires === "number"){
	    window.setTimeout(function(){
		self.close();
	    }, options.expires);
	}
	
	return this;
    },
    close: function(){
	var self = this, speed = this.options.speed;
	
	this.element.fadeTo(speed, 0).slideUp(speed, function(){
	    self._trigger("close");
	    self.isOpen = false;
	});
	
	return this;
    },
    open: function(){
	if(this.isOpen || this._trigger("beforeopen") === false){
	    return this;
	}

	var self = this;
	
	this.element[this.options.stack === 'above' ? 'prependTo' : 'appendTo'](this.parent.element).css({ display:"none", opacity:"" }).fadeIn(this.options.speed, function(){
	    self._trigger("open");
	    self.isOpen = true;
	});
	
	return this;
    },
    widget: function(){
	return this.element;
    },
    _trigger: function(type, e, instance){
	return this.parent._trigger.call( this, type, e, instance );
    }
});

})(jQuery);