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   源码介绍

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jQuery版简单易用的可拖动右下角浮动窗口特效


$.fn.extend({ //---元素拖动插件 dragging:function(data){ var $this = $(this); var xPage; var yPage; var X;// var Y;// var xRand = 0;// var yRand = 0;// var father = $this.parent(); var defaults = { move : 'both', randomPosition : true , hander:1 } var opt = $.extend({},defaults,data); var movePosition = opt.move; var random = opt.randomPosition; var hander = opt.hander; if(hander == 1){ hander = $this; }else{ hander = $this.find(opt.hander); } //---初始化 $this.css({"position":"absolute"}); hander.css({"cursor":"move"}); var faWidth =$(window).width(); var faHeight = $(window).height(); var thisWidth = $this.width() parseInt($this.css('padding-left')) parseInt($this.css('padding-right')); var thisHeight = $this.height() parseInt($this.css('padding-top')) parseInt($this.css('padding-bottom')); var mDown = false;// var positionX; var positionY; var moveX ; var moveY ; if(random){ $thisRandom(); } function $thisRandom(){ //随机函数 $this.each(function(index){ var randY = parseInt(Math.random()*(faHeight-thisHeight));/// var randX = parseInt(Math.random()*(faWidth-thisWidth));/// if(movePosition.toLowerCase() == 'x'){ $(this).css({ left:randX }); }else if(movePosition.toLowerCase() == 'y'){ $(this).css({ top:randY }); }else if(movePosition.toLowerCase() == 'both'){ $(this).css({ top:randY, left:randX }); } }); } hander.mousedown(function(e){ father.children().css({"zIndex":"0"}); $this.css({"zIndex":"1"}); mDown = true; X = e.pageX; Y = e.pageY; positionX = $this.position().left; positionY = $this.position().top; return false; }); $(document).mouseup(function(e){ mDown = false; }); $(document).mousemove(function(e){ xPage = e.pageX;//-- moveX = positionX xPage-X; yPage = e.pageY;//-- moveY = positionY yPage-Y; function thisXMove(){ //x轴移动 if(mDown == true){ $this.css({"left":moveX}); }else{ return; } if(moveX < 0){ $this.css({"left":"0"}); } if(moveX > (faWidth-thisWidth)){ $this.css({"left":faWidth-thisWidth}); } return moveX; } function thisYMove(){ //y轴移动 if(mDown == true){ $this.css({"top":moveY}); }else{ return; } if(moveY < 0){ $this.css({"top":"0"}); } if(moveY > (faHeight-thisHeight)){ $this.css({"top":faHeight-thisHeight}); } return moveY; } function thisAllMove(){ //全部移动 if(mDown == true){ $this.css({"left":moveX,"top":moveY}); }else{ return; } if(moveX < 0){ $this.css({"left":"0"}); } if(moveX > (faWidth-thisWidth)){ $this.css({"left":faWidth-thisWidth}); } if(moveY < 0){ $this.css({"top":"0"}); } if(moveY > (faHeight-thisHeight)){ $this.css({"top":faHeight-thisHeight}); } } if(movePosition.toLowerCase() == "x"){ thisXMove(); }else if(movePosition.toLowerCase() == "y"){ thisYMove(); }else if(movePosition.toLowerCase() == 'both'){ thisAllMove(); } }); $("#small_button").click( function () { var w=$(window).width()-$(".box-3 dl").width(); var h=$(window).height()-$(".box-3 dl dd").height(); var h1=$(window).height()-205; if ( $(this).hasClass("up") ){ $(this).removeClass("up").addClass("down"); $(".box-3 dl").find("ul").hide(); $(".box-3 dl").animate({ left:w "px", top:h "px" },200); }else{ $(this).removeClass("down").addClass("up"); $(".box-3 dl").find("ul").show(); $(".box-3 dl").animate({ left:w "px", top:h1 "px" },200); } }); } });