验证成功：（可以进行页面挑战等...）
验证失败：
HTML：
<div></div>
首次渲染：
$("#gesturepwd").GesturePasswd({ margin:"0px auto", backgroundColor:"#252736", //背景色 color:"#FFFFFF", //主要的控件颜色 roundRadii:42, //大圆点的半径 pointRadii:6, //大圆点被选中时显示的圆心的半径 space:60, //大圆点之间的间隙 width:440, //整个组件的宽度 height:440, //整个组件的高度 lineColor:"#00aec7", //用户划出线条的颜色 zindex :100 //整个组件的css z-index属性 })
密码判断代码：(这里的密码“34569”意思为页面上从上到下，从左到右的9个原点中的5个点)
$("#gesturepwd").on("hasPasswd",function(e,passwd){ var result; if(passwd == "34569"){//密码设置处 result=true; } else { alert("密码错误!"); result=false; } if(result == true){ $("#gesturepwd").trigger("passwdRight"); setTimeout(function(){ //密码验证正确后的其他操作，打开新的页面等。。。 //alert("密码正确！") //window.location.href="../统计图/index.html"; alert("验证通过!"); },500); //延迟半秒以照顾视觉效果 } else{ $("#gesturepwd").trigger("passwdWrong"); //密码验证错误后的其他操作。。。 } })
核心脚本调用展示(这里有兴趣的话可以仔细研究下...)：
; (function ($) { var GesturePasswd= function (element, options) { this.$element = $(element); this.options = options; var that=this; this.pr=options.pointRadii; this.rr=options.roundRadii; this.o=options.space; this.color=options.color; //全局样式 this.$element.css({ "position":"relation", "width":this.options.width, "height":this.options.height, "background-color":options.backgroundColor, "overflow":"hidden", "cursor":"default" }); //选择器规范 if(! $(element).attr("id")) $(element).attr("id",(Math.random()*65535).toString()); this.id="#"+$(element).attr("id"); var Point = function (x,y){ this.x =x;this.y=y }; this.result=""; this.pList=[]; this.sList=[]; this.tP=new Point(0,0); this.$element.append('<canvas >'); //this.$element.append('<canvas >'); this.$c= $(this.id+" .main-c")[0]; this.$ctx=this.$c.getContext('2d'); this.initDraw=function(){ this.$ctx.strokeStyle=this.color; this.$ctx.lineWidth=2; for(var j=0; j<3;j++ ){ for(var i =0;i<3;i++){ this.$ctx.moveTo(this.o/2+this.rr*2+i*(this.o+2*this.rr),this.o/2+this.rr+j*(this.o+2*this.rr)); this.$ctx.arc(this.o/2+this.rr+i*(this.o+2*this.rr),this.o/2+this.rr+j*(this.o+2*this.rr),this.rr,0,2*Math.PI); var tem=new Point(this.o/2+this.rr+i*(this.o+2*this.rr),this.o/2+this.rr+j*(this.o+2*this.rr)); if (that.pList.length < 9) this.pList.push(tem); } } this.$ctx.stroke(); this.initImg=this.$ctx.getImageData(0,0,this.options.width,this.options.height); }; this.initDraw(); //this.$ctx.stroke(); this.isIn=function(x,y){ for (var p in that.pList){ //console.log(that.pList[p][x]); // console.log(( Math.pow((x-that.pList[p][x]),2)+Math.pow((y-that.pList[p][y]),2))); if(( Math.pow((x-that.pList[p]["x"]),2)+Math.pow((y-that.pList[p]["y"]),2) ) < Math.pow(this.rr,2)){ return that.pList[p]; } } return 0; }; this.pointDraw =function(c){ if (arguments.length>0){ that.$ctx.strokeStyle=c; that.$ctx.fillStyle=c; } for (var p in that.sList){ that.$ctx.moveTo(that.sList[p]["x"]+that.pr,that.sList[p]["y"]); that.$ctx.arc(that.sList[p]["x"],that.sList[p]["y"],that.pr,0,2*Math.PI); that.$ctx.fill(); } }; this.lineDraw=function (c){ if (arguments.length>0){ that.$ctx.strokeStyle=c; that.$ctx.fillStyle=c; } if(that.sList.length > 0){ for( var p in that.sList){ if(p == 0){ console.log(that.sList[p]["x"],that.sList[p]["y"]); that.$ctx.moveTo(that.sList[p]["x"],that.sList[p]["y"]); continue; } that.$ctx.lineTo(that.sList[p]["x"],that.sList[p]["y"]); console.log(that.sList[p]["x"],that.sList[p]["y"]); } } }; this.allDraw =function(c){ if (arguments.length>0){ this.pointDraw(c); this.lineDraw(c); that.$ctx.stroke(); } else { this.pointDraw(); this.lineDraw(); } }; this.draw=function(x,y){ that.$ctx.clearRect(0,0,that.options.width,that.options.height); that.$ctx.beginPath(); //that.initDraw(); that.$ctx.putImageData(this.initImg,0,0); that.$ctx.lineWidth=4; that.pointDraw(that.options.lineColor); that.lineDraw(that.options.lineColor); that.$ctx.lineTo(x,y); that.$ctx.stroke(); }; this.pointInList=function(poi,list){ for (var p in list){ if( poi["x"] == list[p]["x"] && poi["y"] == list[p]["y"]){ return ++p; } } return false; }; this.touched=false; $(this.id).on ("mousedown touchstart",{that:that},function(e){ e.data.that.touched=true; }); $(this.id).on ("mouseup touchend",{that:that},function(e){ e.data.that.touched=false; that.$ctx.clearRect(0,0,that.options.width,that.options.height); that.$ctx.beginPath(); that.$ctx.putImageData(e.data.that.initImg,0,0); that.allDraw(that.options.lineColor); // that.$ctx.stroke(); for(var p in that.sList){ if(e.data.that.pointInList(that.sList[p], e.data.that.pList)){ e.data.that.result= e.data.that.result+(e.data.that.pointInList(that.sList[p], e.data.that.pList)).toString(); } } $(element).trigger("hasPasswd",that.result); }); // $(this.id).on('touchmove mousemove',{that:that}, function(e) { if(e.data.that.touched){ var x= e.pageX || e.originalEvent.targetTouches[0].pageX ; var y = e.pageY || e.originalEvent.targetTouches[0].pageY; x=x-that.$element.offset().left; y=y-that.$element.offset().top; var p = e.data.that.isIn(x, y); console.log(x) if(p != 0 ){ if ( !e.data.that.pointInList(p,e.data.that.sList)){ e.data.that.sList.push(p); } } console.log( e.data.that.sList); e.data.that.draw(x, y); } }); $(this.id).on('passwdWrong',{that:that}, function(e) { that.$ctx.clearRect(0,0,that.options.width,that.options.height); that.$ctx.beginPath(); that.$ctx.putImageData(that.initImg,0,0); that.allDraw("#cc1c21"); that.result=""; that.pList=[]; that.sList=[]; setTimeout(function(){ that.$ctx.clearRect(0,0,that.options.width,that.options.height); that.$ctx.beginPath(); that.initDraw() },500) }); $(this.id).on('passwdRight',{that:that}, function(e) { that.$ctx.clearRect(0,0,that.options.width,that.options.height); that.$ctx.beginPath(); that.$ctx.putImageData(that.initImg,0,0); that.allDraw("#00a254"); that.result=""; that.pList=[]; that.sList=[]; setTimeout(function(){ that.$ctx.clearRect(0,0,that.options.width,that.options.height); that.$ctx.beginPath(); that.initDraw() },500) }); }; GesturePasswd.DEFAULTS = { zindex :100, roundRadii:25, pointRadii:6, space:30, width:240, height:240, lineColor:"#00aec7", backgroundColor:"#252736", color:"#FFFFFF" }; //代码整理：懒人之家 function Plugin(option,arg) { return this.each(function () { var $this = $(this); var options = $.extend({}, GesturePasswd.DEFAULTS, typeof option == 'object' && option); var data = $this.data('GesturePasswd'); var action = typeof option == 'string' ? option : NaN; if (!data) $this.data('danmu', (data = new GesturePasswd(this, options))); if (action) data[action](arg); }) } $.fn.GesturePasswd = Plugin; $.fn.GesturePasswd.Constructor = GesturePasswd; })(jQuery);