How does the mobile terminal determine the @ symbol in Chinese mode

[luzhe0359]

BUG REPORT TEMPLATE

I'm going to cook a @ function, I use the keyboard.addBinding(), the key value of 299 | 50, how can you judge on the mobile end @ the key values of corresponding Chinese mode (PC shiftKey value is true, such invalid mobile end, ShiftKey is set to null. Pressing any key in Chinese mode will trigger the callback function.

Vue.js version and component version

"vue": "^2.6.11",
"vue-quill-editor": "^3.0.6",

Reproduction Link

• A minimal JSBin, JSFiddle, Codepen, or a GitHub repository that can reproduce the bug.
• You could start with this template: https://jsfiddle.net/surmon/fpojgkmy/

Steps to reproduce

  editorOption: {
    placeholder: '说点什么呢。。。',
    modules: {
      keyboard: {
        bindings: {
          // This will overwrite the default binding also named 'tab'
          tab1: {
            key: 229,
            shiftKey: null,
            handler: function (range, context) {
              console.log('`~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~229');
              that.showList(range, context)
            },
          },
          tab2: {
            key: 50,
            shiftKey: null,
            handler: function (range, context) {
              console.log('`~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~50');
              that.showList(range, context)
            },
          }
        }
      }
    }
  },

What is Expected?

Under the keyboard module, there is a way to determine the @ sign in Chinese state

What is actually happening?

Thank you very much！