vue-自定义pc端软键盘

<template>
   <div>
    <el-input v-model="money" type="textarea" placeholder="请输入内容"></el-input>
    <div class="keyboard">
     <div class="keyboard_key">
        <div class="keyboard_character" @click="_chraClick">
            <button type="button" class="pad-num1 specialkey" data-num='!'>!</button>
            <button type="button" class="pad-num1 specialkey" data-num='@'>@</button>
            <button type="button" class="pad-num1 specialkey" data-num='#'>#</button>
            <button type="button" class="pad-num1 specialkey" data-num='$'>$</button>
            <button type="button" class="pad-num1 specialkey" data-num='%'>%</button>
            <button type="button" class="pad-num1 specialkey" data-num='^'>^</button>
            <button type="button" class="pad-num1 specialkey" data-num='&'>&</button>
            <button type="button" class="pad-num1 specialkey" data-num='*'>*</button>
            <button type="button" class="pad-num1 specialkey" data-num='('>(</button>
            <button type="button" class="pad-num1 specialkey" data-num=')'>)</button>
            <button type="button" class="pad-num1 specialkey" data-num='{'>{</button>
            <button type="button" class="pad-num1 specialkey" data-num='}'>}</button>
            <button type="button" class="pad-num1 specialkey" data-num=':'>:</button>
            <button type="button" class="pad-num1 specialkey" data-num='"'>"</button>
            <button type="button" class="pad-num1 specialkey" data-num=','>,</button>
            <button type="button" class="pad-num1 specialkey" data-num='/'>/</button>
        </div>
         
       <div class="centerdiv"></div>

        <div class="keyboard_Letter">
         <div class="group1">
            <button v-for="(item,index) in keylist" :key="index" type="button" class="pad-num1" @click="upClick1(item)">{{item}}</button>
         </div>

         <div class="group2">
            <button v-for="(item,index) in keylist2" :key="index" type="button" class="pad-num1" @click="upClick2(item)">{{item}}</button>
         </div>

         <div class="group3">
           <button v-for="(item,index) in keylist3" :key="index" type="button" class="pad-num1" @click="upClick3(item)" >{{item}}</button>
         </div> 
         <div class="group4" @click="_letterClick">
            <button type="button" class="pad-num1 specialkey" data-num='delete'>delete</button>
            <button type="button" class="pad-num2 specialkey" data-num='space'>space</button>
            <button type="button" class="pad-num1 specialkey" data-num='enter'>
              <i class="fa fa-mail-reply" data-num='enter'></i>
              </button>
         </div>
       
        </div>

      <div class="centerdiv"></div>

        <div class="keyboard_number" @click="_handleKeyPress">
          <div class="pos-right-pad-num">
            <button type="button" class="pad-num specialkey" data-num='7'>7</button>
            <button type="button" class="pad-num specialkey" data-num='8'>8</button>
            <button type="button" class="pad-num specialkey" data-num='9'>9</button>
            <button type="button" class="pad-num specialkey" data-num='4'>4</button>
            <button type="button" class="pad-num specialkey" data-num='5'>5</button>
            <button type="button" class="pad-num specialkey" data-num='6'>6</button>
            <button type="button" class="pad-num specialkey" data-num='1'>1</button>
            <button type="button" class="pad-num specialkey" data-num='2'>2</button>
            <button type="button" class="pad-num specialkey" data-num='3'>3</button>
            <button type="button" class="pad-num specialkey" data-num='0'>0</button>
            <button type="button" class="pad-num specialkey" data-num='.'>.</button>
            <button type="button" class="pad-num specialkey" data-num='D'>X</button>
          </div>
          <div class="pos-right-pad-act">
            <button type="button" class="pad-num specialkey border-right" style="100%" data-num='+'>+</button>
            <button type="button" class="pad-num specialkey border-right" style="100%" data-num='-'>-<br></button>
            <button type="button" class="pad-num2 specialkey border-right" data-num='enter'><i class="fa fa-mail-reply" aria-hidden="true"></i></button>
          </div>
        </div>
     </div>
    </div>
  </div>  
</template>

<script>
export default {
  data() {
    return {
      money: "",
      keylist: [],
      keylist2: [],
      keylist3: [],
      bigkeys1:[],
      bigkeys2:[],
      bigkeys3:[],
      smallkeys1:[],
      smallkeys2:[],
      smallkeys3:[],
      selected:false
    };
  },
  created() {
    this.readle();
  },
  methods: {
    readle() {
      let smallkey1 = ["q", "w", "e", "r", "t", "y", "u", "i", "o", "p"];
      let bigkey1 = ["Q", "W", "E", "R", "T", "Y", "U", "I", "O", "P"];
      let smallkey2 = ["a", "s", "d", "f", "g", "h", "j", "k", "l"];
      let bigkey2 = ["A", "S", "D", "F", "G", "H", "J", "K", "L"];
      let smallkey3 = ["shift", "z", "x", "c", "v", "b", "n", "m", "<", ">"];
      let bigkey3 = ["SHIFT","Z", "X", "C", "V", "B", "N", "M", "<", ">"];
      this.keylist = smallkey1;
      this.keylist2 = smallkey2;
      this.keylist3 = smallkey3;
      this.bigkeys1=bigkey1;
      this.bigkeys2=bigkey2;
      this.bigkeys3=bigkey3;
      this.smallkeys1=smallkey1;
      this.smallkeys2=smallkey2;
      this.smallkeys3=smallkey3;
    },
    _chraClick(e) {
      let num = e.target.dataset.num;
      this.money += num;
      this.$emit("updatekey",this.money);
    },
    _handleKeyPress(e) {
      let num = e.target.dataset.num;
      switch (String(num)) {
        case "D":
          this.deletekey();
          break;
        case "enter":
          this.money+="
";
          break;
        default:
          this.Addnum(num);
          break;
      }
      this.$emit("updatekey",this.money)
    },
    deletekey() {
      let values = this.money;
      if (!values.length) {
        return false;
      } else {
        this.money = values.substring(0, values.length - 1);
          this.$emit("updatekey",this.money)
      }
    },
    Addnum(num) {
      let value = this.money;
      this.money = value + num;
    },
    upClick1(key){
      this.money+=key;
        this.$emit("updatekey",this.money)
    },
    upClick2(key){
      this.money+=key;
        this.$emit("updatekey",this.money)
    },
    upClick3(key){
      switch(String(key))
      {
        case "shift":
        this.keylist=this.bigkeys1;
        this.keylist2=this.bigkeys2;
        this.keylist3=this.bigkeys3;
        break;
        case "SHIFT":
       this.keylist = this.smallkeys1;
       this.keylist2 = this.smallkeys2;
       this.keylist3 = this.smallkeys3;
       break;
       default:
       this.money+=key;
       break;
      }
        this.$emit("updatekey",this.money)
    },
    _letterClick(e){
        let num = e.target.dataset.num;
        switch(String(num))
        {
          case "delete":
          this.deletekey();
          break;
          case "space":
          this.money +=" ";
          break;
          case "enter":
          this.money +="
";
          break;
        }
    },
  }
};
</script>
<style lang="scss" scoped>
.keyboard {
   100%;
  height: 215px;
  background: #000;
  opacity: 0.7;
  overflow: hidden;
}
.keyboard_key {
  padding-top: 10px;
   95%;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}
button {
  background-color: aliceblue;
}
// ----数字键盘-----
.keyboard_number {
  display: flex;
   20%;
  margin: 0;
  padding: 0;
  vertical-align: bottom;
  flex-direction: row;
  justify-content: space-between;
  flex-wrap: wrap;
  align-items: center;
}
.pos-right-pad-num {
  display: flex;
   75%;
  flex-direction: row;
  justify-content: space-between;
  flex-wrap: wrap;
  align-items: center;
}
.pos-right-pad-act {
   25%;
}
.pad-num {
  margin: 0 !important;
   33.3333333%;
  height: 48px;
  border: 0;
  border: 1px solid #000000;
  font-size: 15px;
  cursor: pointer;
  &:hover {
    position: relative;
    cursor: pointer;
  }
  &:active {
    top: 1px;
    left: 1px;
    background-color: #201a1a;
  }
}
.pad-num2 {
  margin: 0 !important;
   100%;
  height: 96px;
  border: 0;
  border: 1px solid #000000;
  font-size: 15px;
  cursor: pointer;
  &:hover {
    position: relative;
    cursor: pointer;
  }
  &:active {
    top: 1px;
    left: 1px;
    background-color: #201a1a;
  }
}

// 字符键盘
.keyboard_character {
   20%;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  flex-wrap: wrap;
  align-items: center;
  margin-left: 5%;
  .pad-num1 {
     25%;
    height: 48px;
    border: 1px solid #000000;
    font-size: 15px;
    cursor: pointer;
    &:hover {
      position: relative;
      cursor: pointer;
    }
    &:active {
      top: 1px;
      left: 1px;
      background-color: #201a1a;
    }
  }
}

//字母键盘
.keyboard_Letter {
   40%;
  margin: 0;
  padding: 0;
  .group1 {
    display: flex;
    flex-direction: row;
    .pad-num1 {
       10%;
      height: 48px;
      border: 1px solid #000000;
      font-size: 15px;
      cursor: pointer;
      &:hover {
        position: relative;
        cursor: pointer;
      }
      &:active {
        top: 1px;
        left: 1px;
        background-color: #201a1a;
      }
    }
  }
  .group2 {
    display: flex;
    flex-direction: row;
     100%;
    margin-left: 26px;
    .pad-num1 {
       10%;
      height: 48px;
      border: 1px solid #000000;
      font-size: 15px;
      cursor: pointer;
      &:hover {
        position: relative;
        cursor: pointer;
      }
      &:active {
        top: 1px;
        left: 1px;
        background-color: #201a1a;
      }
    }
  }

  .group3 {
    display: flex;
    flex-direction: row;
    .pad-num1 {
       10%;
      height: 48px;
      border: 1px solid #000000;
      font-size: 16px;
      cursor: pointer;
      &:hover {
        position: relative;
        cursor: pointer;
      }
      &:active {
        top: 1px;
        left: 1px;
        background-color: #201a1a;
      }
    }
  }
  .group4 {
    display: flex;
    flex-direction: row;
    .pad-num1 {
       15%;
      height: 48px;
      font-size: 16px;
      cursor: pointer;
      &:hover {
        position: relative;
        cursor: pointer;
      }
      &:active {
        top: 1px;
        left: 1px;
        background-color: #201a1a;
      }
    }
    .pad-num2 {
       70%;
      height: 48px;
      border: 1px solid #000000;
      font-size: 16px;
      cursor: pointer;
      &:hover {
        position: relative;
        cursor: pointer;
      }
      &:active {
        top: 1px;
        left: 1px;
        background-color: #201a1a;
      }
    }
  }
}
.centerdiv {
  border-right: 2px solid rgb(243, 239, 239);
  padding-bottom: 1800px; /*关键*/
  margin-bottom: -1800px; /*关键*/
  padding-top: 1800px; /*关键*/
  margin-top: -1800px; /*关键*/
}
.input-box {
  font-size: 35px;
  font-weight: bold;
  height: 40px;
  border-bottom: 1px solid #aaa;
  padding: 10px 15px;
  text-align: right;
   90%;
}
</style>

<template>
    <div>
        <h1>父组件</h1>
        <textarea type="text" v-model="keyboards"></textarea>
        <keyboard  v-on:updatekey="GetKeyVal"></keyboard>
    </div>
</template>

<script>
import Keyboard from './Keyboard'

export default {
    data() {
        return {
            keyboards:""
        }
    },
    components: {
        Keyboard
    },
    methods:{
       GetKeyVal(val){
           this.keyboards=val; 
       } 
    },
}
</script>

<style lang="scss" scoped>
    #app {
         680px;
        margin: 20px auto;
        font-family: Verdana, Sans-Serif; 

        h1 {
            color: #42b983;
            font-weight: bold;

        }

        textarea {
            display: block;
             100%;
            min-height: 100px;
            padding: 0;
            margin: 20px 0;
            font-size: 16px;
        }
    }
</style>