/************************** *Desc:提交操作时遮罩 *Argument:type=0 全屏遮 1局部遮 *Author:Zery-Zhang *Date:2014-09-18 *Version:1.0.0 **************************/ ; (function ($) { $.fn.jqLoading =function(option) { var defaultVal = { backgroudColor: "#ECECEC",//背景色 backgroundImage: "./image/loading.gif",//背景图片 text: "正在加载中,请耐心等待....",//文字 width: 150,//宽度 height: 60,//高度 type:0 //0全部遮,1 局部遮 }; var opt = $.extend({}, defaultVal, option); if (opt.type == 0) { //全屏遮 openLayer(); } else { //局部遮(当前对象应为需要被遮挡的对象) openPartialLayer(this); } //销毁对象 if (option === "destroy") { closeLayer(); } //设置背景层高 function height () { var scrollHeight, offsetHeight; // handle IE 6 if ($.browser.msie && $.browser.version < 7) { scrollHeight = Math.max(document.documentElement.scrollHeight, document.body.scrollHeight); offsetHeight = Math.max(document.documentElement.offsetHeight, document.body.offsetHeight); if (scrollHeight < offsetHeight) { return $(window).height(); } else { return scrollHeight; } // handle "good" browsers } else if ($.browser.msie && $.browser.version == 8) { return $(document).height() - 4; } else { return $(document).height(); } }; //设置背景层宽 function width() { var scrollWidth, offsetWidth; // handle IE if ($.browser.msie) { scrollWidth = Math.max(document.documentElement.scrollWidth, document.body.scrollWidth); offsetWidth = Math.max(document.documentElement.offsetWidth, document.body.offsetWidth); if (scrollWidth < offsetWidth) { return $(window).width(); } else { return scrollWidth; } // handle "good" browsers } else { return $(document).width(); } }; /*==========全部遮罩=========*/ function openLayer() { //背景遮罩层 var layer = $("<div id='layer'></div>"); layer.css({ zIndex:9998, position: "absolute", height: height() + "px", width: width() + "px", background: "black", top: 0, left: 0, filter: "alpha(opacity=30)", opacity: 0.3 }); //图片及文字层 var content = $("<div id='content'></div>"); content.css({ textAlign: "left", position:"absolute", zIndex: 9999, height: opt.height + "px", width: opt.width + "px", top: "50%", left: "50%", verticalAlign: "middle", background: opt.backgroudColor, borderRadius:"8px", fontSize:"13px" }); content.append("<img style='vertical-align:middle;margin:"+(opt.height/4)+"px; 0 0 5px;margin-right:5px;' src='" + opt.backgroundImage + "' /><span style='text-align:center; vertical-align:middle;'>" + opt.text + "</span>"); $("body").append(layer).append(content); var top = content.css("top").replace('px',''); var left = content.css("left").replace('px',''); content.css("top",(parseFloat(top)-opt.height/2)).css("left",(parseFloat(left)-opt.width/2)); return this; } //销毁对象 function closeLayer() { $("#layer,#content,#partialLayer").remove(); return this; } /*==========局部遮罩=========*/ function openPartialLayer(obj) { var eheight = $(obj).css("height");//元素带px的高宽度 var ewidth = $(obj).css("width"); var top = $(obj).offset().top; // 元素在文档中位置 滚动条不影响 var left = $(obj).offset().left; var layer = $("<div id='partialLayer'></div>"); layer.css({ style: 'z-index:9998', position: "absolute", height: eheight, width: ewidth, background: "black", top: top, left: left, filter: "alpha(opacity=60)", opacity: 0.6, borderRadius:"3px", dispaly: "block" }); //alert(top+parseFloat(eheight.replace('px',''))/2); //图片及文字层 var content = $("<div id='content'></div>"); content.css({ textAlign: "left", position:"absolute", zIndex: 9999, height: opt.height + "px", width: opt.width + "px", top: top+parseFloat(eheight.replace('px',''))/2-opt.height/2, left: left+parseFloat(ewidth.replace('px',''))/2-opt.width/2, verticalAlign: "middle", background: opt.backgroudColor, borderRadius:"8px", fontSize:"13px" }); content.append("<img style='vertical-align:middle;margin:"+(opt.height/4)+"px; 0 0 5px;margin-right:5px;' src='" + opt.backgroundImage + "' /><span style='text-align:center; vertical-align:middle;'>" + opt.text + "</span>"); $("body").append(layer).append(content); return this; } }; })(jQuery)
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