仿layer弹窗

;(function ($) {
    var Template = function (template) {
        this.template = template;
    };
    Template.prototype.format = function (arg) {
        return this.template.replace(/[@]{1}([^@].+?[^@])[@]{1}/g, function (a, b) {
            return arg[b] || '';
        });
    };
    window.Template = Template;
})(Zepto || $);
;(function ($) {
    var Layer = function () {
        this.template = new Template('
 \
                                    
 
  \
                                        
  
   \ 
   

    \ 
    
     @content@
    \ @buttonArea@\ 
   
\ 
  \
                                    
 ');
        this.data = {
            animationClass: 'layout-layer_animation_scale',
            content: '',
            delay: 5,
            shadeClose: false,
            callback: function () {}
        };
    };
    Layer.prototype.isObject = function (fn) {
       return typeof fn === 'object' || Object.prototype.toString.call(fn) === '[object object]';
    };
    Layer.prototype.isCallable = function (fn) {
       return typeof fn === 'function' || Object.prototype.toString.call(fn) === '[object Function]';
    };
    Layer.prototype.extends = function (params) {
        if (this == null) {
            throw new TypeError('this is null or not defined');
        }
        var O = Object(this);
        if (O.isObject(params)) {
            !params.hasOwnProperty('animationClass') && (params.animationClass = O.data.animationClass);
            !params.hasOwnProperty('content') && (params.content = O.data.content);
            !params.hasOwnProperty('delay') && (params.delay = O.data.delay);
            !params.hasOwnProperty('shadeClose') && (params.shadeClose = O.data.shadeClose);
            !params.hasOwnProperty('callback') && (params.callback = O.data.callback);
            !params.hasOwnProperty('yes') && (params.yes = O.data.yes);
            !params.hasOwnProperty('no') && (params.no = O.data.no);
        } else {
            params = O.data;
        }
        return params;
    };
    Layer.prototype.confirm = function (params) {
        if (this == null) {
            throw new TypeError('this is null or not defined');
        }
        var O = Object(this);
        O.data.yes = function () {};
        O.data.no = function () {};
        O.data.animationClass = 'layout-layer_animation_scale';
        var data = O.extends(params);
        data.delay = '';
        data.buttonArea = '
 
  取消
  确定
 ';
        var $element = $('
 ', {html: this.template.format(data), class: 'layout-layer'}).appendTo($('body'));
        O.after($element, data);
        $element.find('#object-layer_yes').click(function () {
            layer.close($element, data.yes);
        });
        $element.find('#object-layer_no').click(function () {
            layer.close($element, data.no);
        });
        return $element;
    };
    Layer.prototype.alert = function (params) {
        if (this == null) {
            throw new TypeError('this is null or not defined');
        }
        var O = Object(this);
        O.data.animationClass = 'layout-layer_animation_scale';
        var data = O.extends(params);
        var $element = $('
 ', {html: this.template.format(data), class: 'layout-layer'}).appendTo($('body'));
        O.after($element, data);
        return $element;
    };
    Layer.prototype.loading = function (params) {
        if (this == null) {
            throw new TypeError('this is null or not defined');
        }
        var O = Object(this);
        O.data.animationClass = 'layout-layer_animation_loading';
        var data = O.extends(params);
        data.delay = '';
        if (data.content) {
            data.content = '
' + data.content + '
';
        } else {
            data.content = '';
        }
        var $element = $('
 ', {html: this.template.format(data), class: 'layout-layer'}).appendTo($('body'));
        O.after($element, data);
        return $element;
    };
    Layer.prototype.delay = function ($time, foo) {
        if (this == null) {
            throw new TypeError('this is null or not defined');
        }
        var O = Object(this);
        if (!O.isCallable(foo)) {
            throw new TypeError('foo is uncallable');
        }
        return setTimeout(function () {
            foo.call(foo);
        }, $time * 1E3);
    };
    Layer.prototype.close = function ($element, callback) {
        if (this == null) {
            throw new TypeError('this is null or not defined');
        }
        var O = Object(this);
        O.isObject($element) ? $element.remove() : null;
        O.isCallable(callback) ? callback.call(callback) : null;
    }
    Layer.prototype.after = function ($element, params) {
        if (this == null) {
            throw new TypeError('this is null or not defined');
        }
        var O = Object(this);
        if (!O.isObject($element)) {
            throw new TypeError('element must be object');
        }
        if (!O.isObject(params)) {
            throw new TypeError('params must be object');
        }
        if (typeof params.delay == 'number') {
            var delayTimer = O.delay(params.delay, function () {
                O.close($element, params.callback);
            });
        }
        if (params.shadeClose) {
            $element.find('.layout-layer_shade').click(function () {
                O.close($element, params.callback);
                (typeof delayTimer != undefined) && clearTimeout(delayTimer);
            });
        }
    }

    window.layer = new Layer();
})(Zepto || $);

.layout-layer, .layout-layer_shade, .layout-layer_main {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
.layout-layer {
    z-index: 19891014;
}
.layout-layer_shade {
    background-color: rgba(0,0,0,.7);
    pointer-events: auto;
}
.layout-layer_main {
    display: table;
    pointer-events: none;
}
.layout-layer_box {
    display: table-cell;
    vertical-align: middle;
    text-align: center;
}
.layout-layer_section {
    width: 90%;
    max-width: 640px;
    position: relative;
    display: inline-block;
    background-color: #FFFFFF;
    font-size: 14px;
    border-radius: 5px;
    box-shadow: 0 0 8px rgba(0,0,0,.1);
    pointer-events: auto;
    animation-fill-mode: both;
    animation-duration: .2s;
    -webkit-animation-duration: .2s;
    -webkit-animation-fill-mode: both;
    overflow: hidden;
}
.layout-layer_contents {
    padding: 1.875rem 1.875rem;
    line-height: 1.375rem;
    text-align: center;
}
.layout-layer_contents i {
    width: 25px;
    height: 25px;
    margin-left: 8px;
    display: inline-block;
    background-color: #fff;
    border-radius: 100%;
    -webkit-animation: layout-layer_animation_loading 1.4s infinite ease-in-out;
    animation: layout-layer_animation_loading 1.4s infinite ease-in-out;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}
.layout-layer_contents i:first-child {
    margin-left: 0;
    -webkit-animation-delay: -.32s;
    animation-delay: -.32s;
}
.layout-layer_contents i.layout-layer_loading {
    -webkit-animation-delay: -.16s;
    animation-delay: -.16s;
}
.layout-layer_contents .layout-layer_loading_font {
    color: #FFFFFF;
}
.layout-layer_button {
    display: box;
    display: -moz-box;
    display: -webkit-box;
    width: 100%;
    height: 50px;
    line-height: 50px;
    font-size: 0;
    border-top: 1px solid #D0D0D0;
    background-color: #F2F2F2
}

.layout-layer_button span {
    display: block;
    -moz-box-flex: 1;
    box-flex: 1;
    -webkit-box-flex: 1;
    font-size: 14px;
    cursor: pointer
}

.layout-layer_button span#object-layer_yes {
    color: #40AFFE
}

.layout-layer_button span#object-layer_no {
    border-right: 1px solid #D0D0D0;
    border-radius: 0 0 0 5px
}

.layout-layer_button span:active {
    background-color: #F6F6F6
}
@-webkit-keyframes layout-layer_animation_scale {
    0% {
        opacity: 0;
        -webkit-transform: scale(.5);
        transform: scale(.5)
    }
    100% {
        opacity: 1;
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}
@keyframes layout-layer_animation_scale {
    0% {
        opacity: 0;
        -webkit-transform: scale(.5);
        transform: scale(.5)
    }
    100% {
        opacity: 1;
        -webkit-transform: scale(1);
        transform: scale(1);
    }
}
.layout-layer_animation_scale {
    animation-name: layout-layer_animation_scale;
    -webkit-animation-name: layout-layer_animation_scale;
}
@-webkit-keyframes layout-layer_animation_loading {
    0%, 100%, 80% {
        transform: scale(0);
        -webkit-transform: scale(0)
    }

    40% {
        transform: scale(1);
        -webkit-transform: scale(1)
    }
}

@keyframes layout-layer_animation_loading {
    0%, 100%, 80% {
        transform: scale(0);
        -webkit-transform: scale(0);
    }

    40% {
        transform: scale(1);
        -webkit-transform: scale(1);
    }
}
.layout-layer_animation_loading {
    background-color: transparent !important;
    box-shadow: none !important;
}