jQuery插件-toastmessage

最近项目需要用到toast的信息提示效果，找了一个jquery写的不错的插件，toastmessage
http://akquinet.github.com/jquery-toastmessage-plugin/

本人根据项目需求做了部分修改，对浏览器兼容也做了hack
js

(function($)
{
	var settings = {
				inEffect: 			{opacity: 'show'},	// in effect
				inEffectDuration: 	600,				// in effect duration in miliseconds
				stayTime: 			3000,				// time in miliseconds before the item has to disappear
				text: 				'',					// content of the item. Might be a string or a jQuery object. Be aware that any jQuery object which is acting as a message will be deleted when the toast is fading away.
				sticky: 			false,				// should the toast item sticky or not?
				type: 				'notice', 			// notice, warning, error, success
                position:           'top-center',        // top-left, top-center, top-right, middle-left, middle-center, middle-right ... Position of the toast container holding different toast. Position can be set only once at the very first call, changing the position after the first call does nothing
                closeText:          '',                 // text which will be shown as close button, set to '' when you want to introduce an image via css
                close:              null                // callback function when the toastmessage is closed
            };

    var methods = {
        init : function(options)
		{
			if (options) {
                $.extend( settings, options );
            }
		},

        showToast : function(options)
		{
			var localSettings = {};
            $.extend(localSettings, settings, options);

			// declare variables
            var toastWrapAll, toastItemOuter, toastItemInner, toastItemClose, toastItemImage;
            
			toastWrapAll	= (!$('.toast-container').length) ? $('<div></div>').addClass('toast-container').addClass('toast-position-' + localSettings.position).appendTo('body') : $('.toast-container');
			toastItemOuter	= $('<div></div>').addClass('toast-item-wrapper');
			toastItemInner	= $('<div></div>').hide().addClass('toast-item toast-type-' + localSettings.type).appendTo(toastWrapAll).html($('<p>').append (localSettings.text)).animate(localSettings.inEffect, localSettings.inEffectDuration).wrap(toastItemOuter);
			//toastItemClose	= $('<div></div>').addClass('toast-item-close').prependTo(toastItemInner).html(localSettings.closeText).click(function() { $().toastmessage('removeToast',toastItemInner, localSettings) });
			toastItemImage  = $('<div></div>').addClass('toast-item-image').addClass('toast-item-image-' + localSettings.type).prependTo(toastItemInner);
			//居中设置
			var iconWidth = $(".toast-item-image").width();
			var textWidth = $(".toast-item p").width();
			$(".toast-container").width(iconWidth+textWidth+40);
			$(".toast-position-top-center").css("margin-left",-$(".toast-container").width()/2);
//            if(navigator.userAgent.match(/MSIE 6/i))
//			{
//		    	toastWrapAll.css({top: document.documentElement.scrollTop});
//		    }

			if(!localSettings.sticky)
			{
				setTimeout(function()
				{
					$().toastmessage('removeToast', toastItemInner, localSettings);
				},
				localSettings.stayTime);
			}
            return toastItemInner;
		},

        showNoticeToast : function (message)
        {
            var options = {text : message, type : 'notice'};
			$(".toast-item-wrapper").remove();
            return $().toastmessage('showToast', options);
        },

        showSuccessToast : function (message)
        {
            var options = {text : message, type : 'success',stayTime : 2000};
			$(".toast-item-wrapper").remove();
            return $().toastmessage('showToast', options);
        },

        showErrorToast : function (message)
        {
            var options = {text : message, type : 'error'};
			$(".toast-item-wrapper").remove();
            return $().toastmessage('showToast', options);
        },

        showWarningToast : function (message)
        {
            var options = {text : message, type : 'warning'};
			$(".toast-item-wrapper").remove();
            return $().toastmessage('showToast', options);
        },
		
        showLoadingToast : function (message)
        {
            var options = {inEffectDuration : 0, text : message, type : 'loading', sticky : true};
            $(".toast-item-wrapper").remove();
            return $().toastmessage('showToast', options);
        },

		removeToast: function(obj, options)
		{
			obj.animate({opacity: '0'}, 600, function()
			{
				obj.parent().animate({height: '0px'}, 300, function()
				{
					obj.parent().remove();
				});
			});
            // callback
            if (options && options.close !== null)
            {
                options.close();
            }
		}
	};

    $.fn.toastmessage = function( method ) {

        // Method calling logic
        if ( methods[method] ) {
          return methods[ method ].apply( this, Array.prototype.slice.call( arguments, 1 ));
        } else if ( typeof method === 'object' || ! method ) {
          return methods.init.apply( this, arguments );
        } else {
          $.error( 'Method ' +  method + ' does not exist on jQuery.toastmessage' );
        }
    };

})(jQuery);

css:

.toast-container {
    z-index: 9999;
}
* html .toast-container {
    position: absolute;
}

.toast-item {
    height: 46px;
    background: #DFF4FF;
    -moz-border-radius: 10px;
    -webkit-border-radius: 10px;
     opacity: 0.8;
    /*
     color: #eee;
     padding-top: 20px;
     padding-bottom: 20px;
     padding-left: 6px;
     padding-right: 6px;
     font-family: lucida Grande;
     font-size: 14px;
     */
    border: 2px solid white;
    display: block;
    position: relative;
    margin: 0 0 12px 0;
}

.toast-item p {
    margin-right: 15px;
    text-align: left;
    margin-top: 14px\0;
    *margin-top: 14px;
    float: right;
    display: inline;
}

.toast-item-close {
    height: 0px;
    line-height: 0px;
    /*
     background: url(img/close.gif);
     width: 22px;
     height: 22px;
     position: absolute;
     top: 7px;
     right: 7px;
     */
}

.toast-item-image {
    width: 24px;
    height: 24px;
    margin-left: 15px;
    margin-top: 10px;
    margin-right: 4px;
    float: left;
    display: inline;
}

.toast-item-image-notice {
    background: url(img/formaticon.png);
}

.toast-item-image-success {
    background: url(img/formaticon.png) -2px -28px;
}

.toast-item-image-warning {
    background: url(img/formaticon.png) -2px -53px;
}

.toast-item-image-error {
    background: url(img/formaticon.png) -2px -3px;
}

.toast-item-image-loading {
    background: url(img/loading.gif);
}

/**
 * toast types
 *
 * pattern: toast-type-[value]
 * where 'value' is the real value of the plugin option 'type'
 *
 */
.toast-type-notice {
    color: black;
}

.toast-type-success {
    color: black;
}

.toast-type-warning {
    color: black;
    /*
     border-color: #FCBD57;
     */
}

.toast-type-error {
    color: black;
    /*
     border-color: #B32B2B;
     */
}

.toast-type-loading {
    color: black;
}

/**
 * positions
 *
 * pattern: toast-position-[value]
 * where 'value' is the real value of the plugin option 'position'
 *
 */
.toast-position-top-left {
    position: fixed;
    left: 20px;
    top: 20px;
}

.toast-position-top-center {
    position: fixed;
    top: 220px;
    left: 50%;
}

.toast-position-top-right {
    position: fixed;
    top: 20px;
    right: 20px;
}

.toast-position-middle-left {
    position: fixed;
    left: 20px;
    top: 50%;
    margin-top: -40px;
}

.toast-position-middle-center {
    position: absolute;
    left: 50%;
    margin-left: -140px;
    margin-top: -40px;
    top: 50%;
}

.toast-position-middle-right {
    position: fixed;
    right: 20px;
    margin-left: -140px;
    margin-top: -40px;
    top: 50%;
}