简洁的Jquery弹出窗插件

　　做项目时，很多时候都需要弹窗提示。如果要求不是很严格的项目，直接使用alert就可以搞定。对于需要高度定制化的项目，而且要求比较高的时候，就需要设计符合整体风格的弹出层，这种有美工帮忙，也比较好搞定。最麻烦的是一些工期比较紧，alert这种简陋的提示又不满足要求，又没时间做一些精美的弹出模块的项目。

　　我最近遇到很多的这种情况的Web App项目，项目工期催的很紧，又不可以直接使用alert，所以自己写了个简洁的jquery插件，使用非常方便，而且整体样式简洁大方。项目源码的地址，https://github.com/SeedQiGit/BriefPopUp

　　项目使用时需要引入1.7版本以上的jquery，其实如果要使用1.7一下版本，直接修改jquery.popup.js开头的源代码，把on绑定改成live即可。

　　原版on绑定

$(document).on("click", '.briefPopUp', function (event) {
        event.preventDefault();
        var modalLocation = $(this).attr('data-briefPopUp-id');
        $('#' + modalLocation).reveal($(this).data());
    });

修改之后的绑定

$('a['data-briefPopUp-id]').live('click', function(event) {
        event.preventDefault();
        var modalLocation = $(this).attr('data-briefPopUp-id');
        $('#'+modalLocation).reveal($(this).data());
    });

这样就可以在1.7一下版本使用了。

最后js源码

(function($) {
/*---------------------------
 Defaults for briefPopUp
 至简弹窗
----------------------------*/
/*---------------------------
 Listener for BriefPopUp class
 监听BriefPopUp类的单击事件
----------------------------*/
    $(document).on("click", '.briefPopUp', function (event) {
        event.preventDefault();
        var modalLocation = $(this).attr('data-briefPopUp-id');
        $('#' + modalLocation).reveal($(this).data());
    });
/*---------------------------
 Extend and Execute
 扩展和执行
----------------------------*/
    $.fn.reveal = function(options) {
        var defaults = {
            animation: 'fadeAndPop', //fade, fadeAndPop, none
            animationspeed: 300, //how fast animtions are
            closeonbackgroundclick: true, //if you click background will modal close
            dismissmodalclass: 'close-briefPopUp-modal' //the class of a button or element that will close an open modal
        }; 

        //Extend dem' options 获取设置选项
        var options = $.extend({}, defaults, options); 

        return this.each(function() {
/*---------------------------
 Global Variables
 全局变量
----------------------------*/
            var modal = $(this),
                topMeasure  = parseInt(modal.css('top')),
                topOffset = modal.height() + topMeasure,
                  locked = false,
                modalBG = $('.briefPopUp-background');

/*---------------------------
 Create Modal background
 加入透明黑色的背景
----------------------------*/
            if(modalBG.length == 0) {
                modalBG = $('<div class="briefPopUp-background" />').insertAfter(modal);
            }            

/*---------------------------
 Open & Close Animations
 打开和关闭事件
----------------------------*/
            //Entrance Animations  进场动画
            modal.bind('briefPopUp:open', function () {
                modalBG.unbind('click.modalEvent');
                $('.' + options.dismissmodalclass).unbind('click.modalEvent');
                if(!locked) {
                    lockModal();
                    if(options.animation == "fadeAndPop") {
                        modal.css({'top': $(document).scrollTop()-topOffset, 'opacity' : 0, 'visibility' : 'visible'});
                        modalBG.fadeIn(options.animationspeed/2);
                        modal.delay(options.animationspeed/2).animate({
                            "top": $(document).scrollTop()+topMeasure + 'px',
                            "opacity" : 1
                        }, options.animationspeed,unlockModal());
                    }
                    if(options.animation == "fade") {
                        modal.css({'opacity' : 0, 'visibility' : 'visible', 'top': $(document).scrollTop()+topMeasure});
                        modalBG.fadeIn(options.animationspeed/2);
                        modal.delay(options.animationspeed/2).animate({
                            "opacity" : 1
                        }, options.animationspeed,unlockModal());
                    }
                    if(options.animation == "none") {
                        modal.css({'visibility' : 'visible', 'top':$(document).scrollTop()+topMeasure});
                        modalBG.css({"display":"block"});
                        unlockModal()
                    }
                }
                modal.unbind('briefPopUp:open');
            });
            //Closing Animation  关闭动画
            modal.bind('briefPopUp:close', function () {
              if(!locked) {
                    lockModal();
                    if(options.animation == "fadeAndPop") {
                        modalBG.delay(options.animationspeed).fadeOut(options.animationspeed);
                        modal.animate({
                            "top":  $(document).scrollTop()-topOffset + 'px',
                            "opacity" : 0
                        }, options.animationspeed/2, function() {
                            modal.css({'top':topMeasure, 'opacity' : 1, 'visibility' : 'hidden'});
                            unlockModal();
                        });
                    }
                    if(options.animation == "fade") {
                        modalBG.delay(options.animationspeed).fadeOut(options.animationspeed);
                        modal.animate({
                            "opacity" : 0
                        }, options.animationspeed, function() {
                            modal.css({'opacity' : 1, 'visibility' : 'hidden', 'top' : topMeasure});
                            unlockModal();
                        });
                    }
                    if(options.animation == "none") {
                        modal.css({'visibility' : 'hidden', 'top' : topMeasure});
                        modalBG.css({'display' : 'none'});
                    }
                }
              modal.unbind('briefPopUp:close');
            });     

/*---------------------------
 Open and add Closing Listeners
 弹出层然后添加关闭监听事件
----------------------------*/
            //Open Modal Immediately  立即执行打开事件
            modal.trigger('briefPopUp:open')

            //Close Modal Listeners 关闭按钮绑定关闭事件
            var closeButton = $('.' + options.dismissmodalclass).bind('click.modalEvent', function () {
                modal.trigger('briefPopUp:close')
            });

            //如果设置为true，添加背景点击事件
            if(options.closeonbackgroundclick) {
                modalBG.css({"cursor":"pointer"})
                modalBG.bind('click.modalEvent', function () {
                    modal.trigger('briefPopUp:close')
                });
            }
            //esc关闭事件
            $('body').keyup(function(e) {
                if (e.which === 27) { modal.trigger('briefPopUp:close'); } // 27 is the keycode for the Escape key
            });
/*---------------------------
 Animations Locks
 动画锁定
----------------------------*/
            function unlockModal() {
                locked = false;
            }
            function lockModal() {
                locked = true;
            }
        });//each call
    }//orbit plugin call
})(jQuery);