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vue实现滑块滑动校验
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内容图文
为了防止机器操作自动提交，我们需要添加滑动校验。
实现代码如下：
1.子组件slider.vue
<
template
>
<
div
class
="drag"
ref
="dragDiv"
>
<
div
class
="drag_bg"
></
div
>
<
div
class
="drag_text"
>{{confirmWords}}</div><div ref="moveDiv" @mousedown="mouseDownFn($event)" :class="{‘handler_ok_bg‘:confirmSuccess}" class="handler handler_bg" style="position: absolute;top: 0px;left: 0px;"></div></div></template><script>
export default {
data(){
return {
beginClientX: 0, /*距离屏幕左端距离*/
mouseMoveState: false, /*触发拖动状态 判断*/
maxWidth: ‘‘, /*拖动最大宽度，依据滑块宽度算出来的*/
confirmWords: ‘向右拖动滑块验证‘, /*滑块文字*/
confirmSuccess: false/*验证成功判断*/
}
},
methods: {
//mousedown 事件 mouseDownFn:function (e) {
if(!this.confirmSuccess){
e.preventDefault && e.preventDefault(); //阻止文字选中等 浏览器默认事件this.mouseMoveState =true;
this.beginClientX = e.clientX;
}
},
//验证成功函数 successFunction(){
this.confirmSuccess =true;
this.confirmWords =‘验证通过‘;
if(window.addEventListener){
document.getElementsByTagName(‘html‘)[0].removeEventListener(‘mousemove‘,this.mouseMoveFn);
document.getElementsByTagName(‘html‘)[0].removeEventListener(‘mouseup‘,this.moseUpFn);
}else {
document.getElementsByTagName(‘html‘)[0].removeEventListener(‘mouseup‘,()=>{});
}
document.getElementsByClassName(‘drag_text‘)[0].style.color =‘#fff‘;
document.getElementsByClassName(‘handler‘)[0].style.left =this.maxWidth +‘px‘;
document.getElementsByClassName(‘drag_bg‘)[0].style.width =this.maxWidth +‘px‘;
},
//mousemove事件 mouseMoveFn(e){
if(this.mouseMoveState){
let width = e.clientX -this.beginClientX;
if(width>0&& width<=this.maxWidth){
document.getElementsByClassName(‘handler‘)[0].style.left = width +‘px‘;
document.getElementsByClassName(‘drag_bg‘)[0].style.width = width +‘px‘;
}elseif(width>this.maxWidth){
this.successFunction();
}
}
},
//mouseup事件 moseUpFn(e){
this.mouseMoveState =false;
var width = e.clientX -this.beginClientX;
if(width<this.maxWidth){
document.getElementsByClassName(‘handler‘)[0].style.left =0+‘px‘;
document.getElementsByClassName(‘drag_bg‘)[0].style.width =0+‘px‘;
}
}
},
mounted(){
this.maxWidth =this.$refs.dragDiv.clientWidth -this.$refs.moveDiv.clientWidth;
document.getElementsByTagName(‘html‘)[0].addEventListener(‘mousemove‘,this.mouseMoveFn);
document.getElementsByTagName(‘html‘)[0].addEventListener(‘mouseup‘,this.moseUpFn)
}
}
</script><style scoped>
.drag{
position: relative;
background-color: #e8e8e8;
width: 100%;
height: 40px;
line-height: 40px;
text-align: center;
border: 1px solid #ccc;
border-radius: 4px;}
.handler{
width: 40px;
height: 38px;
border: 1px solid #ccc;
border-radius: 4px;
cursor: move;}
.handler_bg{
background: #fff url("data:image/png;base64,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") no-repeat center;
}
.handler_ok_bg{
border-top-left-radius: 0;
border-bottom-left-radius: 0;
background: #fff url("data:image/png;base64,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") no-repeat center;
}
.drag_bg{
background-color: #7ac23c;
height: 38px;
width: 0px;
border-radius: 4px 0 0 4px;}
.drag_text{
position: absolute;
top: 0px;
width: 100%;text-align: center;
-moz-user-select: none;
-webkit-user-select: none;
user-select: none;
-o-user-select:none;
-ms-user-select:none;}</style>
2.调用组件：（使用了ElementUI）
<
template
>
<
el-form
class
="form-wrapper"
ref
="myForm"
:model
="myForm"
label-width
="110px"
>
<
el-form-item
label
="滑块验证："
>
<
div
><
slider
ref
="slider"
></
slider
></
div
>
</
el-form-item
>
<
el-form-item
>
<
el-button
type
="primary"
@click
="toSubmit"
>提交</el-button></el-form-item></el-form></template><script type="text/ecmascript-6">
import slider from ‘./slider‘
export default {
data() {
return {
myForm: {}
}
},
components: {
slider
},
methods: {
toSubmit() {
if(this.$refs[‘slider‘]) {
// 未通过验证时，提示错误信息并返回if (!this.$refs[‘slider‘].confirmSuccess) {
this.$message.error("请拖动滑块验证");
return
}
}
// 通过验证后提交// TO DO ...this.$message.success("验证成功，可提交");
},
}
}
</script><style type="text/css" scoped>
.form-wrapper {
margin-top: 50px;
width: 500px;}</style>
3.效果图：
原文：https://www.cnblogs.com/yeqrblog/p/10388368.html
内容总结
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