newICSS/src/components/NumberDrop/index.jsx

import React,{Component} from 'react';
import className from 'classnames';
import {NumberPan} 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
 *
 * ***/
class NumberDrop extends Component{
  constructor(props){
    super(props);
    this.state={
      editable:false,      //标签是否可输入
      timer:null,
      hasSelect:false,       //是否点过下拉键盘
      boxLeft:0,
      boxTop:0,
      tmpTop:0,
      tmpScroll:0
    };
    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);
  }
  select(text){        //选中键盘上数字事件
    const {handleSelect,ikey,suffix,prefix,mainSaveText} = this.props;
    this.setState({
      hasSelect:true
    });
    handleSelect&&handleSelect({ikey,text,suffix,prefix,mainSaveText});
  }
  handleNumFocus(e){       //数字框可编辑状态下聚集事件，处理是否显示下拉等
    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;
    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(){
        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 = $("#addScrollEvent")[0].scrollTop;
        this.setState({
          boxTop:this.state.tmpTop - scrollYs + this.state.tmpScroll
        })
      })
    }
    e.stopPropagation();
  }
  numInpBlur(e){        //数字框失焦，保存值到store中
    e.stopPropagation();
    this.setState({
      hasSelect:false
    });
    const val = e.target.innerText.replace(/^\s*/,'');
    const {handleSelect,ikey,suffix,prefix,mainSaveText,placeholder} = this.props;
    const text = val===placeholder?'':val;
    e.target.innerText = '';      //避免出现重复输入值
    handleSelect&&handleSelect({ikey,text,suffix,prefix,mainSaveText});
  }
  handleSpanInp(e){   //数字框输入事件
    e.stopPropagation();
    const {handleHide} = this.props;
    handleHide&&handleHide();
  }
  getClasses(){         //整个标签是否有值的状态
    const {value,hideTag,placeholder} = this.props;
    const blueBorder = this.state.editable?style['blue-border']:'';
    const isSelected = value&&value!=placeholder?style['selected']:style['container'];
    const noTag = hideTag?style['no-tag']:'';
    return className(isSelected,noTag,blueBorder);
  }
  changeToEdit(e){        //整个标签双击编辑状态
    const {value,id,handleDbclick,patId,handleHide,show} = this.props;
    clearTimeout(this.state.timer);//取消延时的单击事件
    e.preventDefault();
    if(show){
      handleHide&&handleHide();
    }
    if(value&&value.trim()) {//有选中值的标签才能双击编辑
      this.setState({
        editable: true
      });
      setTimeout(()=>{
        this.$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.$suf.current.innerText.replace(/^\s*/,''); //后缀值-修改后
    //console.log('数字框：'+changeVal,";全部："+totalVal,";前缀："+prefix+";后缀："+suffix);
    handleLabelChange && handleLabelChange({ikey,changeVal,type:boxMark,totalVal,prefix,suffix});
  }
  getSpanClass(){       //将被替换的文字选中状态显示
    //const {hasSelect} = this.state;
    const cls = this.props.show?style['blued']:'';
    return cls;
  }
  render(){
    const {placeholder,prefix,suffix,show,value,handleHide} = this.props;
    const {numEditable,editable,hasSelect,boxTop,boxLeft} = this.state;
    return <div className={this.getClasses()}
                ref={this.$cont}
                onDoubleClick={this.changeToEdit}
                contentEditable={editable}
                onBlur={this.handleBlur}
                onkeydown={handleEnter}>
      <span ref = {this.$pre}>&nbsp;{prefix}</span>
      <span onFocus={this.handleNumFocus}
            onClick={this.handleNumClick}
            contentEditable={true}
            style={{minWidth:'10px',display:'inline-block'}}
            ref = {this.$span}
            onBlur={this.numInpBlur}
            onInput={this.handleSpanInp}
            className={this.getSpanClass()}
            onkeydown={handleEnter}>&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;