js封装alert

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(function($) {    $.alerts = {        // These properties can be read/written by accessing $.alerts.propertyName from your scripts at any time        verticalOffset: -75,                // vertical offset of the dialog from center screen, in pixels        horizontalOffset: 0,                // horizontal offset of the dialog from center screen, in pixels/        repositionOnResize: true,           // re-centers the dialog on window resize        overlayOpacity: .01,                // transparency level of overlay        overlayColor: '#FFF',               // base color of overlay        draggable: true,                    // make the dialogs draggable (requires UI Draggables plugin)        okButton: ' 确定 ',         // text for the OK button        cancelButton: ' 取消 ', // text for the Cancel button        dialogClass: null,                  // if specified, this class will be applied to all dialogs        // Public methods        alert: function(message, title, callback) {            if( title == null ) title = '提示';            $.alerts._show(title, message, null, 'alert', function(result) {                if( callback ) callback(result);            });        },        confirm: function(message, title, callback) {            if( title == null ) title = '确定';            $.alerts._show(title, message, null, 'confirm', function(result) {                if( callback ) callback(result);            });        },        prompt: function(message, value, title, callback) {            if( title == null ) title = '请输入';            $.alerts._show(title, message, value, 'prompt', function(result) {                if( callback ) callback(result);            });        },        // Private methods        _show: function(title, msg, value, type, callback) {            $.alerts._hide();            $.alerts._overlay('show');            $("BODY").append(                '<div id="popup_container" class="panel panel-default gAlert">' +                '<div class="panel-heading" id="popup_title"></div>' +                '<div class="panel-body" id="popup_content">' +                '<div id="popup_message"></div>' +                '</div>' +                '</div>');            if( $.alerts.dialogClass ) $("#popup_container").addClass($.alerts.dialogClass);            //IE6 Fix            //var pos = ($.browser.msie && parseInt($.browser.version) <= 6 ) ? 'absolute' : 'fixed';            var pos =  'fixed';            $("#popup_container").css({                position: pos,                zIndex: 99999,                padding: 0,                margin: 0,                'min-width':"320px"            });            $("#popup_title").text(title);            $("#popup_content").addClass(type);            $("#popup_message").text(msg);            $("#popup_message").html( $("#popup_message").text().replace(/\n/g, '<br />') );            $("#popup_container").css({                minWidth: $("#popup_container").outerWidth(),                maxWidth: $("#popup_container").outerWidth()            });            $.alerts._reposition();            $.alerts._maintainPosition(true);            switch( type ) {                case 'alert':                    $("#popup_content").after('<div id="popup_panel" style="padding: 5px;border-top: 1px solid #ccc;" class="text-center" ><input type="button" class="btn btn-default btn-sm" value="' + $.alerts.okButton + '" id="popup_ok" /></div>');                    $("#popup_ok").click( function() {                        $.alerts._hide();                        callback(true);                    });                    $("#popup_ok").focus().keypress( function(e) {                        if( e.keyCode == 13 || e.keyCode == 27 ) $("#popup_ok").trigger('click');                    });                    break;                case 'confirm':                    $("#popup_content").after('<div id="popup_panel" style="padding: 5px;border-top: 1px solid #ccc;" class="text-center">  <input type="button" class="btn btn-primary btn-sm" value="' + $.alerts.okButton + '" id="popup_ok" />  <input type="button" class="btn btn-default btn-sm"  value="' + $.alerts.cancelButton + '" id="popup_cancel" /></div>');                    $("#popup_ok").click( function() {                        $.alerts._hide();                        if( callback ) callback(true);                    });                    $("#popup_cancel").click( function() {                        $.alerts._hide();                        if( callback ) callback(false);                    });                    $("#popup_ok").focus();                    $("#popup_ok, #popup_cancel").keypress( function(e) {                        if( e.keyCode == 13 ) $("#popup_ok").trigger('click');                        if( e.keyCode == 27 ) $("#popup_cancel").trigger('click');                    });                    break;                case 'prompt':                    $("#popup_content").append('<br /><input type="text" class="form-control" size="30" id="popup_prompt" />').after('<div id="popup_panel"  style="padding: 5px;border-top: 1px solid #ccc;" class="text-center"> <input type="button" class="btn btn-primary btn-sm" value="' + $.alerts.okButton + '" id="popup_ok" /> <input type="button" value="' + $.alerts.cancelButton + '" class="btn btn-default btn-sm" id="popup_cancel" /></div>');                    $("#popup_prompt").width( $("#popup_message").width() );                    $("#popup_ok").click( function() {                        var val = $("#popup_prompt").val();                        $.alerts._hide();                        if( callback ) callback( val );                    });                    $("#popup_cancel").click( function() {                        $.alerts._hide();                        if( callback ) callback( null );                    });                    $("#popup_prompt, #popup_ok, #popup_cancel").keypress( function(e) {                        if( e.keyCode == 13 ) $("#popup_ok").trigger('click');                        if( e.keyCode == 27 ) $("#popup_cancel").trigger('click');                    });                    if( value ) $("#popup_prompt").val(value);                    $("#popup_prompt").focus().select();                    break;            }            // Make draggable            if( $.alerts.draggable ) {                try {                    $("#popup_container").draggable({ handle: $("#popup_title") });                    $("#popup_title").css({ cursor: 'move' });                } catch(e) { /* requires jQuery UI draggables */ }            }        },        _hide: function() {            $("#popup_container").remove();            $.alerts._overlay('hide');            $.alerts._maintainPosition(false);        },        _overlay: function(status) {            switch( status ) {                case 'show':                    $.alerts._overlay('hide');                    $("BODY").append('<div id="popup_overlay"></div>');                    $("#popup_overlay").css({                        position: 'absolute',                        zIndex: 99998,                        top: '0px',                        left: '0px',                        width: '100%',                        height: $(document).height(),                        background: $.alerts.overlayColor,                        opacity: $.alerts.overlayOpacity                    });                    break;                case 'hide':                    $("#popup_overlay").remove();                    break;            }        },        _reposition: function() {            var top =window.screen.height/2-200;            var left = (($(window).width() / 2) - ($("#popup_container").outerWidth() / 2)) + $.alerts.horizontalOffset;            if( top < 0 ) top = 0;            if( left < 0 ) left = 0;            // IE6 fix            //if( $.browser.msie && parseInt($.browser.version) <= 6 ) top = top + $(window).scrollTop();            $("#popup_container").css({                top: top + 'px',                left: left + 'px'            });            $("#popup_overlay").css({"background":"#000","opacity":0.3}).height( $(document).height() );        },        _maintainPosition: function(status) {            if( $.alerts.repositionOnResize ) {                switch(status) {                    case true:                        $(window).bind('resize', $.alerts._reposition);                        break;                    case false:                        $(window).unbind('resize', $.alerts._reposition);                        break;                }            }        }    }    // Shortuct functions    gAlert = function(message, title, callback) {        $.alerts.alert(message, title, callback);    }    gConfirm = function(message, title, callback) {        $.alerts.confirm(message, title, callback);    };    gPrompt = function(message, value, title, callback) {        $.alerts.prompt(message, value, title, callback);    };})(jQuery);

使用方法：1，gAlert("xxx操作","提示");

使用方法：2，gAlert("修改成功！","提示",function(){ });

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