250 lines
7.3 KiB
Vue
250 lines
7.3 KiB
Vue
<template>
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<view class="tf-Box-Bg">
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<view class="tf-Box">
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<view class="tf-Box-title">
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请完成安全验证
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<view class="tf-close" @click.stop="close_"></view>
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</view>
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<canvas :style="{ width: canvasW + 'px', height: canvasH + 'px' }"
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class="tf-Box-center" canvas-id="tf-verify-canvas" id="tf-verify-canvas"></canvas>
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<movable-area class="tf-Box-BtnBox">
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<view class="tf-Box-BtnBox-text">滑动滑块完成拼图</view>
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<movable-view class="tf-Box-BtnNei" direction="all" :x="canvasX2" @change="changePath" @touchend="endTouch">
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<view class="tf-Box-BtnNei-leftBox" :style="{backgroundColor:verifyImgs[verifyIndex].color}"></view>
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</movable-view>
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</movable-area>
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</view>
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</view>
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</template>
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<script>
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export default {
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name:"tf-verify-img",
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data() {
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return {
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verifyImgs:[{
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src:'/static/verify/1.jpg',
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color:'#38a7b7'
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},{
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src:'/static/verify/2.jpg',
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color:'#485967'
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},{
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src:'/static/verify/3.jpg',
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color:'#485967'
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},{
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src:'/static/verify/4.jpg',
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color:'#485967'
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},{
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src:'/static/verify/5.jpg',
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color:'#485967'
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},{
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src:'/static/verify/6.jpg',
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color:'#485967'
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}],
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verifyIndex:0,
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canvasW:"",
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canvasH:"",
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canvasX2:0,//归为用的
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canvasX:0,//实时移动X
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ctx:false,
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jgX:0,//结果X
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dqImgPath:'',//本地临时图片路径
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};
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},
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created() {
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this.canvasW = uni.upx2px(580);
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this.canvasH = uni.upx2px(290);
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},
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mounted() {
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this.$nextTick(()=>{
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this.init()
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})
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},
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methods:{
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// 生成从minNum到maxNum的随机数
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randomNum(minNum,maxNum){
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switch(arguments.length){
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case 1:
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return parseInt(Math.random()*minNum+1,10);
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break;
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case 2:
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return parseInt(Math.random()*(maxNum-minNum+1)+minNum,10);
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break;
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default:
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return 0;
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break;
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}
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},
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close_(){
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this.$emit('close')
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},
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init(){
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this.canvasX2--;
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this.canvasX = 0;
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this.verifyIndex = this.randomNum(0,this.verifyImgs.length-1);
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this.ctx = uni.createCanvasContext('tf-verify-canvas',this);
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this.jgX = this.randomNum(uni.upx2px(150),uni.upx2px(450));
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this.dqImgPath = this.verifyImgs[this.verifyIndex].src;
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this.huatu();
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},
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endTouch(){
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if(Math.abs(this.canvasX-this.jgX)<=5){
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this.$emit('succeed')
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}else{
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uni.showToast({
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title: '验证失败',
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icon:"error"
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});
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this.init();
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}
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},
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huatu(){
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let this_ = this;
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let r = uni.upx2px(10);
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let XX = this.canvasX;
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let YY = uni.upx2px(100);
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let cs = uni.upx2px(20);
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this_.ctx.drawImage(this_.dqImgPath,0,0,this_.canvasW,this_.canvasH);
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//画不可移动的拼图块
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this_.ctx.beginPath();
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this_.ctx.moveTo(-2*r+this_.jgX+cs+2*r, YY-2*r+2*r);
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this_.ctx.lineTo(-2*r+this_.jgX+cs+5.5*r, YY-2*r+2*r);
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this_.ctx.arcTo(-2*r+this_.jgX+cs+5.5*r, YY-2*r+3*r, XX-2+this_.jgX*r+cs+6.5*r, YY-2*r+3*r, r);
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this_.ctx.lineTo(-2*r+this_.jgX+cs+7.5*r, YY-2*r+3*r);
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this_.ctx.arcTo(-2*r+this_.jgX+cs+8.5*r, YY-2*r+3*r, -2*r+this_.jgX+cs+8.5*r, YY-2*r+2*r, r);
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this_.ctx.lineTo(-2*r+this_.jgX+cs+12*r, YY-2*r+2*r);
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this_.ctx.lineTo(-2*r+this_.jgX+cs+12*r, YY-2*r+11*r);
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this_.ctx.lineTo(-2*r+this_.jgX+cs+8.5*r, YY-2*r+11*r);
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this_.ctx.arcTo(-2*r+this_.jgX+cs+8.5*r, YY-2*r+12*r, -2*r+this_.jgX+cs+7.5*r, YY-2*r+12*r, r);
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this_.ctx.lineTo(-2*r+this_.jgX+cs+6.5*r, YY-2*r+12*r);
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this_.ctx.arcTo(-2*r+this_.jgX+cs+5.5*r, YY-2*r+12*r, -2*r+this_.jgX+cs+5.5*r, YY-2*r+11*r, r);
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this_.ctx.lineTo(-2*r+this_.jgX+cs+2*r, YY-2*r+11*r);
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this_.ctx.lineTo(-2*r+this_.jgX+cs+2*r, YY-2*r+8*r);
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this_.ctx.arcTo(-2*r+this_.jgX+cs+3*r, YY-2*r+8*r, -2*r+this_.jgX+cs+3*r, YY-2*r+7*r, r);
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this_.ctx.lineTo(-2*r+this_.jgX+cs+3*r, YY-2*r+6*r);
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this_.ctx.arcTo(-2*r+this_.jgX+cs+3*r, YY-2*r+5*r, -2*r+this_.jgX+cs+2*r, YY-2*r+5*r, r);
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this_.ctx.lineTo(-2*r+this_.jgX+cs+2*r, YY-2*r+2*r);
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this_.ctx.shadowBlur=10;
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this_.ctx.shadowColor="#ffffff";
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this_.ctx.fillStyle = "rgba(0,0,0,0.5)";
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this_.ctx.fill();
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this_.ctx.restore();
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//画可移动的拼图块
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this_.ctx.beginPath();
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this_.ctx.save();
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this_.ctx.moveTo(XX-2*r+cs+2*r, YY-2*r+2*r);
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this_.ctx.lineTo(XX-2*r+cs+5.5*r, YY-2*r+2*r);
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this_.ctx.arcTo(XX-2*r+cs+5.5*r, YY-2*r+3*r, XX-2*r+cs+6.5*r, YY-2*r+3*r, r);
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this_.ctx.lineTo(XX-2*r+cs+7.5*r, YY-2*r+3*r);
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this_.ctx.arcTo(XX-2*r+cs+8.5*r, YY-2*r+3*r, XX-2*r+cs+8.5*r, YY-2*r+2*r, r);
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this_.ctx.lineTo(XX-2*r+cs+12*r, YY-2*r+2*r);
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this_.ctx.lineTo(XX-2*r+cs+12*r, YY-2*r+11*r);
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this_.ctx.lineTo(XX-2*r+cs+8.5*r, YY-2*r+11*r);
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this_.ctx.arcTo(XX-2*r+cs+8.5*r, YY-2*r+12*r, XX-2*r+cs+7.5*r, YY-2*r+12*r, r);
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this_.ctx.lineTo(XX-2*r+cs+6.5*r, YY-2*r+12*r);
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this_.ctx.arcTo(XX-2*r+cs+5.5*r, YY-2*r+12*r, XX-2*r+cs+5.5*r, YY-2*r+11*r, r);
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this_.ctx.lineTo(XX-2*r+cs+2*r, YY-2*r+11*r);
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this_.ctx.lineTo(XX-2*r+cs+2*r, YY-2*r+8*r);
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this_.ctx.arcTo(XX-2*r+cs+3*r, YY-2*r+8*r, XX-2*r+cs+3*r, YY-2*r+7*r, r);
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this_.ctx.lineTo(XX-2*r+cs+3*r, YY-2*r+6*r);
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this_.ctx.arcTo(XX-2*r+cs+3*r, YY-2*r+5*r, XX-2*r+cs+2*r, YY-2*r+5*r, r);
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this_.ctx.lineTo(XX-2*r+cs+2*r, YY-2*r+2*r);
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this_.ctx.shadowBlur=10;
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this_.ctx.shadowColor="#ffffff";
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this_.ctx.fill();
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this_.ctx.clip();
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this_.ctx.drawImage(this_.dqImgPath,this_.canvasX-this_.jgX,0,this_.canvasW,this_.canvasH);
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this_.ctx.restore();
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//绘图
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this_.ctx.draw();
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},
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changePath(e){
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this.canvasX = e.target.x;
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this.huatu();
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}
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}
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}
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</script>
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<style lang="less">
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.tf-Box-Bg{
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position: fixed;
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top: 0;
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left: 0;
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width: 100%;
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height: 100%;
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z-index: 100;
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background-color: rgba(0,0,0,.3);
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display: flex;
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align-items: center;
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justify-content: center;
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.tf-Box{
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width: 640upx;
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height: 584upx;
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background-color: #fff;
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border-radius: 6upx;
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box-shadow: 0 0 50upx 0upx rgba(0,0,0,.2);
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.tf-Box-title{
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height: 100upx;
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line-height: 1;
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padding: 0 32upx;
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font-size: 32upx;
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border-bottom: 1px solid #E1E3E9;
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display: flex;
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align-items: center;
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justify-content: space-between;
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.tf-close{
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width: 28upx;
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height: 28upx;
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background-image: url(img/tf-close.png);
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background-size: 100% 100%;
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}
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}
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.tf-Box-center{
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margin: 30upx auto;
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border-radius: 6upx;
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}
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.tf-Box-BtnBox{
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margin: 30upx auto;
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width: 580upx;
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height: 75upx;
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line-height: 75upx;
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text-align: center;
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font-size: 28upx;
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border-radius: 6upx;
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border: 1px solid #E1E3E9;
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background-color: #F7F8F9;
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overflow: hidden;
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position: relative;
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.tf-Box-BtnBox-text{
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width: 100%;
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height: 75upx;
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position: absolute;
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top: 0;
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left: 0;
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color: #424649;
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text-align: center;
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}
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.tf-Box-BtnNei{
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height: 75upx;
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width: 75upx;
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background-color: #fff;
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box-shadow: 0 0 10upx 0upx rgba(0,0,0,.2);
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background-image: url(img/tf-arrows.png);
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background-size: 34upx;
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background-position: center;
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background-repeat: no-repeat;
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.tf-Box-BtnNei-leftBox{
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position: absolute;
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top: 0;
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left: -580upx;
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width: 580upx;
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height: 100%;
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}
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}
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}
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}
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}
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</style>
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