magie.vue

<template>
  <div class="hello">
    <button class="dropdown-printer" v-on:click="showTrucs">click me! </button>
    <div ref="dropdown" id="dropdown" v-show="show" :style="styleDropdown()">
      <button v-for="item of items" :key="item">{{ item }}</button>
    </div>
  </div>
</template>

<script>
export default {
  name: 'HelloWorld',
  data: () => {
    return {
      lastButtonClicked: null,
      show: false,
      items: ['machin', 'bidule', 'truc']
    }
  },
  methods: {
    showTrucs (evt) {
      this.show = !this.show
      this.lastButtonClicked = evt.target
    },
    styleDropdown () {
      if (!this.lastButtonClicked) return {}
      const posFinal = this.lastButtonClicked.getBoundingClientRect()
      const dropdown = this.$refs.dropdown
      console.log('dropdown', dropdown)
      console.log('posfinal', posFinal)
      return {
        top: (posFinal.y + posFinal.height) + 'px',
        left: posFinal.x + 'px'
      }
    }
  }
}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
.dropdown-printer {
  padding: 10px;
  background-color: lightgreen;
  border: 1px solid black;
}

#dropdown {
  position: absolute;
  width: 90px;
  border: 1px solid black;
}
#dropdown button {
  display: block;
}
</style>

<button class="bouton" v-on:click ="createameliorer" >{{'AMELIORER'}}</button>
<div ref="defense" id="dropdown" v-show= "showdefense" :style="styleDropdown()" >
    <button v-for="defense of defenses" :key="defense.id">{{defense.name}}</button>

<script> export default { name: "village", data() { return { showdefense: false, lastButtonCliked: null, idplayer: 0, pseudo: "null", defenses:[ {id: 0,name: 'douve'}, {id: 1, name: 'tower'}

  ]      
};

},
methods:{
createdefense(evt){
this.showdefense = !this.showdefense
this.lastButtonCliked = evt.target

},
styleDropdown () {
  if (!this.lastButtonClicked) return {}
  const posFinal = this.lastButtonClicked.getBoundingClientRect()
  const dropdown = this.$refs.dropdown
  console.log('defense', dropdown)
  console.log('posfinal', posFinal)
  return {
    top: (posFinal.y + posFinal.height) + 'px',
    left: posFinal.x + 'px'
  }
},
createameliorer(){

} ,
createparam(){

},
createattaque(){

},
createbatiment(){

}

}
}
</script>

    <button class="bouton" v-on:click ="createameliorer" >{{'AMELIORER'}}</button>
    <div ref="defense" id="dropdown" v-show= "showdefense" :style="styleDropdown()" >
        <button v-for="defense of defenses" :key="defense.id">{{defense.name}}</button>
  </div>
  </div>
 
</template>
<script>
export default {
  name: "village",
  data() {    
    return {
      showdefense: false,
      lastButtonCliked: null,
      idplayer: 0,
      pseudo: "null",
      defenses:[
        {id: 0,name: 'douve'},
        {id: 1, name: 'tower'}
        
      ]      
    };
  
  },
  methods:{
    createdefense(evt){
      this.showdefense = !this.showdefense
      this.lastButtonCliked = evt.target
      
    },
    styleDropdown () {
      if (!this.lastButtonClicked) return {}
      const posFinal = this.lastButtonClicked.getBoundingClientRect()
      const dropdown = this.$refs.dropdown
      console.log('defense', dropdown)
      console.log('posfinal', posFinal)
      return {
        top: (posFinal.y + posFinal.height) + 'px',
        left: posFinal.x + 'px'
      }
    },
    createameliorer(){

    } ,
    createparam(){

    },
    createattaque(){

    },
    createbatiment(){

    }
  }
}
</script>