jQuery窗口拖动功能的实现代码

 $("#showTitle").mousedown(function (e) { vbool = true; vHeight = e.pageY; vWidth = e.pageX; cHeight = vHeight - $("#show").offset().top; cWdith = vWidth - $("#show").offset().left; //alert("divshow" + $("#show").offset().top + " divvHeight" + vHeight); //alert("高" + cHeight + " 宽" + cWdith); }) $(document).mouseup(function () { vbool = false; }) var showWidth = $("#show").width(); var showHeight = $("#show").height(); var documentWidth = $(document).width(); var documentHeight = $(document).height(); $(document).mousemove(function (e) { if (vbool) { var divheight = e.pageY - cHeight;//窗口要移动到的位置 var divwidth = e.pageX - cWdith;//窗口要移动到的位置 $("#la1").text(divheight + "w" + divwidth + "win" + showWidth + " x " + documentWidth + "" + showWidth); if (divwidth <0) { divwidth = 0; } if (divheight <50) { divheight = 50; } if (divwidth > documentWidth - showWidth) { divwidth = documentWidth - showWidth - 5; } if (divheight > documentHeight - showHeight) { divheight = documentHeight - showHeight - 5; } $("#show").css({ "left": divwidth, "top": divheight }); } })

 // 弹窗模块拖拽拖动 $(function(){ var _move=false;//移动标记 var _x,_y;//鼠标离控件左上角的相对位置 var _dragZone = $(".M_boxCenter .M_boxBody > h3"); var _dragBody = _dragZone.parent(); _dragZone.mousedown(function(e){ $(this).attr("onselectstart", "return false"); //禁双击选中 $("body").css({"-webkit-user-select":"none", "-moz-user-select":"none", "-ms-user-select":"none", "-khtml-user-select":"none", "user-select":"none"}); //禁止选中文字 _move=true; _x=e.pageX-parseInt(_dragBody.css("margin-left")); _y=e.pageY-parseInt(_dragBody.css("margin-top")); _dragBody.fadeTo(150, 0.5); }); $(document).mousemove(function(e){ if(_move){ var x=e.pageX-_x;//移动时根据鼠标位置计算控件左上角的绝对位置 var y=e.pageY-_y; if(e.pageX <= 0 || e.pageY <= 0){ _move=false; }else { _dragBody.css({marginLeft:x, marginTop:y});//控件新位置 } } }).mouseup(function(){ _move=false; _dragBody.fadeTo("fast", 1); $("body").removeAttr("style"); //移除不能选文字 }); });