newICSS/src/components/NumberDrop/index.jsx

import React,{Component} from 'react';
import className from 'classnames';
import {NumberPan,Notify} from '@commonComp';
import style from './index.less';
import $ from "jquery";
import {handleEnter,getPageCoordinate} from '@utils/tools.js';
/***
 * author:zn@2018-11-19
 * 接收参数：
 * value: 默认选中的值
 * placeholder：灰显文字
 * handleSelect: 选中事件
 * show: 是否显示下拉
 * allClick:是否前后缀也可唤出数字键盘
 *
 * ***/
class NumberDrop extends Component{
  constructor(props){
    super(props);
    this.state={
      editable:false,      //标签是否可输入
      timer:null,
      sltTimer:null,
      hasSelect:false,       //是否点过下拉键盘
      boxLeft:0,
      boxTop:0,
      tmpTop:0,
      tmpScroll:0,
      placeholder:props.placeholder
    };
    this.$span = React.createRef();
    this.$pre = React.createRef();
    this.$suf = React.createRef();
    this.$cont = React.createRef();
    this.select = this.select.bind(this);
    this.numInpBlur = this.numInpBlur.bind(this);
    this.handleSpanInp = this.handleSpanInp.bind(this);
    this.handleNumClick = this.handleNumClick.bind(this);
    this.handleNumFocus = this.handleNumFocus.bind(this);
    this.handleBlur = this.handleBlur.bind(this);
    this.changeToEdit = this.changeToEdit.bind(this);
    this.handleKeyDowm = this.handleKeyDowm.bind(this);
    this.beyondArea = this.beyondArea.bind(this);
  }
  select(text){        //选中键盘上数字事件
    let timer = null;
    clearTimeout(this.state.sltTimer);
    const {handleSelect,ikey,suffix,prefix,mainSaveText,min,max} = this.props;
    const needCompare=min!=undefined&&max!=undefined;
    if(!text){
      this.setState({
        placeholder:this.props.placeholder
      });
    }else{
      //console.log(text,isNaN(+text),max<+text)
      if(needCompare){
        if(!isNaN(+text)&&max<+text){     //数值过大
          this.beyondArea();
          return;
        }
        const that = this;
        timer = setTimeout(function(){
          clearTimeout(that.state.sltTimer);
          if(!that.props.show&&!isNaN(+text)&&min>+text){
            that.beyondArea();
            return;
          }
        },1500);
      }
      this.setState({
        hasSelect:true,
        sltTimer:timer
      });
    }

    handleSelect&&handleSelect({ikey,text,suffix,prefix,mainSaveText});
  }
  beyondArea(){
    const {handleSelect,ikey,suffix,prefix,mainSaveText} = this.props;
    Notify.info("数值在正常值范围内，请重新输入");
    handleSelect&&handleSelect({ikey,text:'',suffix,prefix,mainSaveText});
    this.setState({
      placeholder:this.props.placeholder,
      hasSelect:false
    });
  }
  handleNumFocus(e){       //数字框可编辑状态下聚集事件，处理是否显示下拉等
    const {placeholder} = this.state;
    const val = e.target.innerText.trim();
    //console.log(33,e.target.innerText,placeholder,e.target.innerText.trim() == placeholder)
    if(val!=''&&val == placeholder){
      this.setState({
        placeholder:''
      });
    }
    e.stopPropagation();
  }
  handleNumClick(e){     //数字框不可编辑的状态时点击事件，点击将数字框变为可输入且下拉不再显示直到失焦后再次聚集
    const {show,handleShow,ikey,id,patId,handleHide,value} = this.props;
    this.$span.current.focus();
    if(show) {
      handleHide && handleHide();
      return;
    }else{
      const {editable} = this.state;
      if(editable){
        return;
      }
      const that = this;
      //双击时不显示下拉
      clearTimeout(that.state.timer);
      const timer = setTimeout(function(){
        //只有弹窗关闭则点击数字键盘会清空当前数据
        that.setState({
          hasSelect:false
        });
        handleShow&&handleShow({ikey,id:patId||id});
      },300);
      this.setState({
        timer,
        boxLeft:getPageCoordinate(e).boxLeft,
        boxTop:getPageCoordinate(e).boxTop,
        tmpScroll: $("#addScrollEvent")[0].scrollTop,
        tmpTop:getPageCoordinate(e).boxTop
      });
      $("#addScrollEvent").scroll(()=>{
        let scrollYs = $("#addScrollEvent")[0].scrollTop;
        this.setState({
          boxTop:this.state.tmpTop - scrollYs + this.state.tmpScroll
        })
      })
    }
    e.stopPropagation();
  }
  numInpBlur(e){        //数字框失焦，保存值到store中
    e.stopPropagation();
    const {handleSelect,ikey,suffix,prefix,mainSaveText,min,max,show} = this.props;
    if(show){      //修改清空后第一次点击键盘不触发click事件bug
      return;
    }
    const txt = e.target.innerText.replace(/^\s*/,'');
    if(max!=undefined&&!isNaN(+txt)&&(min>+txt||max<+txt)){
      this.beyondArea();
      return;
    }
    //输入为空时显示placeholder
    if(!e.target.innerText.trim()){
      this.setState({
        placeholder:this.props.placeholder
      });
    }

    /*this.setState({
      hasSelect:false
    });*/
    const val = e.target.innerText.replace(/^\s*/,'');
    const {placeholder} = this.state;
    let text = val===placeholder?'':val.replace(/[\u4e00-\u9fa5]/g,'');
    e.target.innerText = '';      //避免出现重复输入值
    handleSelect&&handleSelect({ikey,text,suffix,prefix,mainSaveText});
  }
  handleSpanInp(e){   //数字框输入事件
    e.stopPropagation();
    const {handleHide} = this.props;
    /*this.setState({     //再键盘点击数字要清空
      hasSelect:false
    });*/
    handleHide&&handleHide();
  }
  handleKeyDowm(e){
    handleEnter();
    //只能输入数字
    const key = e.key;
    const ctrlOn = e.ctrlKey;
    const isCopyPaste = ctrlOn&&(key=='v'||key=='c');
    if((!/[0-9|.|～|\/]/.test(key)&&key.length==1&&!isCopyPaste)){
      e.preventDefault();
      return false;
    }
  }
  getClasses(){         //整个标签是否有值的状态
    const {hideTag,placeholder,value} = this.props;
    const $span = this.$span.current;
    const val = value;//$span&&$span.innerText.trim()||value;
    const blueBorder = this.state.editable?style['blue-border']:'';
    const isSelected = val&&val!=placeholder?style['selected']:style['container'];
    const noTag = hideTag?style['no-tag']:'';
    return className(isSelected,noTag,blueBorder);
  }
  changeToEdit(e){        //整个标签双击编辑状态
    const {value,id,handleDbclick,patId,handleHide,show} = this.props;
    clearTimeout(this.state.timer);//取消延时的单击事件
    e.preventDefault();
    if(show){
      handleHide&&handleHide();
    }
    if(value&&value.trim()) {//有选中值的标签才能双击编辑
      this.setState({
        editable: true
      });
      setTimeout(()=>{
        this.$cont.current.focus();
      })
      //双击埋点记录
      handleDbclick && handleDbclick({id:patId||id});
    }
  }
  handleBlur(e){     //双击编辑blur
    const {handleLabelChange,ikey,boxMark,value} = this.props;
    //if(!this.state.editable) return;
    this.setState({
      editable: false
    });
    let totalVal = e.target.innerText;
    let changeVal = this.$span.current.innerText.replace(/^\s*/,'');//数字框值-修改后;去掉前空格避免多空格叠加
    let prefix = this.$pre.current.innerText.replace(/^\s*/,''); //前缀值-修改后
    let suffix = this.$suf.current.innerText.replace(/^\s*/,''); //后缀值-修改后
    //console.log('数字框：'+changeVal,";全部："+totalVal,";前缀："+prefix+";后缀："+suffix);
    handleLabelChange && handleLabelChange({ikey,changeVal,type:boxMark,totalVal,prefix,suffix});
  }
  getSpanClass(){       //将被替换的文字选中状态显示
    //const {hasSelect} = this.state;
    const cls = this.props.show?style['blued']:'';
    return cls;
  }
  componentDidMount(){
    //设置最小宽度避免输入后宽度跳动
    const spanWidth = window.getComputedStyle(this.$span.current).width;
    this.$span.current.style.minWidth=spanWidth;
  }
  render(){
    const {prefix,suffix,show,value,handleHide,allClick} = this.props;
    const {numEditable,placeholder,editable,hasSelect,boxTop,boxLeft} = this.state;
    return <div className={this.getClasses()}
                ref={this.$cont}
                onDoubleClick={this.changeToEdit}
                onClick={allClick?this.handleNumClick:null}
                contentEditable={editable}
                onBlur={this.handleBlur}
                onkeydown={handleEnter}>
      <span ref = {this.$pre}>&nbsp;{prefix}</span>
      <span onFocus={this.handleNumFocus}
            onClick={allClick?null:this.handleNumClick}
            contentEditable={true}
            style={{minWidth:'10px',display:'inline-block',textAlign:'center'}}
            ref = {this.$span}
            onBlur={this.numInpBlur}
            onInput={this.handleSpanInp}
            className={this.getSpanClass()}
            onkeydown={this.handleKeyDowm}>&nbsp;{value||placeholder}</span>
      <span ref = {this.$suf}>&nbsp;{suffix}</span>
      <NumberPan handleSelect={(text)=>this.select(text)}
                 onClose={handleHide}
                 show={show} 
                 toClear={!hasSelect}
                 left={boxLeft}
                 top={boxTop}/>
    </div>
  }
}

export default NumberDrop;