// Inspired by https://github.com/Inndy/vue-clipboard2
  const Clipboard = require('clipboard')
  if (!Clipboard) {
    throw new Error('you should npm install `clipboard` --save at first ')
  }
  
  export default {
    bind(el, binding) {
      if (binding.arg === 'success') {
        el._v_clipboard_success = binding.value
      } else if (binding.arg === 'error') {
        el._v_clipboard_error = binding.value
      } else {
        const clipboard = new Clipboard(el, {
          text() { return binding.value },
          action() { return binding.arg === 'cut' ? 'cut' : 'copy' }
        })
        clipboard.on('success', e => {
          const callback = el._v_clipboard_success
          callback && callback(e) // eslint-disable-line
        })
        clipboard.on('error', e => {
          const callback = el._v_clipboard_error
          callback && callback(e) // eslint-disable-line
        })
        el._v_clipboard = clipboard
      }
    },
    update(el, binding) {
      if (binding.arg === 'success') {
        el._v_clipboard_success = binding.value
      } else if (binding.arg === 'error') {
        el._v_clipboard_error = binding.value
      } else {
        el._v_clipboard.text = function() { return binding.value }
        el._v_clipboard.action = function() { return binding.arg === 'cut' ? 'cut' : 'copy' }
      }
    },
    unbind(el, binding) {
      if (binding.arg === 'success') {
        delete el._v_clipboard_success
      } else if (binding.arg === 'error') {
        delete el._v_clipboard_error
      } else {
        el._v_clipboard.destroy()
        delete el._v_clipboard
      }
    }
  }