ui/src/utils/directives.js

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

import Vue from 'vue'

const ENTER_KEY_CODE = 13
let lastFocusElm = null

Vue.directive('ctrlEnter', {
  bind: (el, binding, vnode) => {
    el.addEventListener('keydown', (e) => {
      if (e.ctrlKey && e.keyCode === ENTER_KEY_CODE) {
        e.preventDefault()
        lastFocusElm = e.target
        vnode.context.$refs.submit.$el.focus()
      }
    })

    el.addEventListener('keyup', (e) => {
      if (!e.ctrlKey || e.keyCode !== ENTER_KEY_CODE) {
        e.preventDefault()
        return
      }

      e.preventDefault()
      if (typeof binding.value === 'function') {
        if (lastFocusElm) lastFocusElm.focus()
        const argument = binding.arg || e
        binding.value(argument)
      }
    })
  }
})