vue实现一个获取按键展示快捷键效果的Input组件

.shortcut-key-input {
 cursor: text;
 transition: border-color 0.2s cubic-bezier(0.645, 0.045, 0.355, 1);
}
.shortcut-key-input:focus {
 border-color: #188cff;
 box-shadow: 0 0 4px rgba(24, 140, 255, 0.38);
}

@keyframes Blink {
 0% { opacity: 0; }
 100% { opacity: 1; }
}
.shortcut-key-input.cursor::after {
 content: "|";
 animation: Blink 1.2s ease 0s infinite;
 font-size: 18px;
 position: absolute;
 top: 1px;
 left: 8px;
}

  handleKeydown(e) {
   const { altKey, ctrlKey, shiftKey, key, code } = e;
   if (!CODE_CONTROL.includes(key)) {
    if (!this.keyRange.includes(code)) return;
    let controlKey = "";
    [
     { key: altKey, text: "Alt" },
     { key: ctrlKey, text: "Ctrl" },
     { key: shiftKey, text: "Shift" }
    ].forEach(curKey => {
     if (curKey.key) {
      if (controlKey) controlKey += "+";
      controlKey += curKey.text;
     }
    });
    if (key) {
     if (controlKey) controlKey += "+";
     controlKey += key.toUpperCase();
    }
    this.addHotkey({ text: controlKey, controlKey: { altKey, ctrlKey, shiftKey, key, code } });
   }
   e.preventDefault();
  },

  addHotkey(data) {
   if (this.list.length && this.list.some(item => data.text === item.text)) return;
   if (this.list.length && this.list.length.toString() === this.max.toString()) return;
   if (!this.verify(data)) return;
   this.list.push(data);
  }