wikijs/client/js/components/editor-codeblock.js

let modelist = ace.require('ace/ext/modelist')
let codeEditor = null

// ACE - Mode Loader

let modelistLoaded = []
let loadAceMode = (m) => {
  return $.ajax({
    url: '/js/ace/mode-' + m + '.js',
    dataType: 'script',
    cache: true,
    beforeSend: () => {
      if (_.includes(modelistLoaded, m)) {
        return false
      }
    },
    success: () => {
      modelistLoaded.push(m)
    }
  })
}

// Vue Code Block instance

let vueCodeBlock = new Vue({
  el: '#modal-editor-codeblock',
  data: {
    modes: modelist.modesByName,
    modeSelected: 'text',
    initContent: ''
  },
  watch: {
    modeSelected: (val, oldVal) => {
      loadAceMode(val).done(() => {
        ace.require('ace/mode/' + val)
        codeEditor.getSession().setMode('ace/mode/' + val)
      })
    }
  },
  methods: {
    open: (ev) => {
      $('#modal-editor-codeblock').addClass('is-active')

      _.delay(() => {
        codeEditor = ace.edit('codeblock-editor')
        codeEditor.setTheme('ace/theme/tomorrow_night')
        codeEditor.getSession().setMode('ace/mode/' + vueCodeBlock.modeSelected)
        codeEditor.setOption('fontSize', '14px')
        codeEditor.setOption('hScrollBarAlwaysVisible', false)
        codeEditor.setOption('wrap', true)

        codeEditor.setValue(vueCodeBlock.initContent)

        codeEditor.focus()
        codeEditor.renderer.updateFull()
      }, 300)
    },
    cancel: (ev) => {
      mdeModalOpenState = false
      $('#modal-editor-codeblock').removeClass('is-active')
      vueCodeBlock.initContent = ''
    },
    insertCode: (ev) => {
      if (mde.codemirror.doc.somethingSelected()) {
        mde.codemirror.execCommand('singleSelection')
      }
      let codeBlockText = '\n```' + vueCodeBlock.modeSelected + '\n' + codeEditor.getValue() + '\n```\n'

      mde.codemirror.doc.replaceSelection(codeBlockText)
      vueCodeBlock.cancel()
    }
  }
})