Overleaf/services/web/frontend/js/main/system-messages.js

/* eslint-disable
    max-len,
    no-return-assign,
*/
// TODO: This file was created by bulk-decaffeinate.
// Fix any style issues and re-enable lint.
/*
 * decaffeinate suggestions:
 * DS102: Remove unnecessary code created because of implicit returns
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */
import App from '../base'
const MESSAGE_POLL_INTERVAL = 15 * 60 * 1000
// Controller for messages (array)
App.controller('SystemMessagesController', [
  '$http',
  '$scope',
  function ($http, $scope) {
    $scope.messages = []
    function pollSystemMessages() {
      // Ignore polling if tab is hidden or browser is offline
      if (document.hidden || !navigator.onLine) {
        return
      }

      $http
        .get('/system/messages')
        .then(response => {
          // Ignore if content-type is anything but JSON, prevents a bug where
          // the user logs out in another tab, then a 302 redirect was returned,
          // which is transparently resolved by the browser to the login (HTML)
          // page.
          // This then caused an Angular error where it was attempting to loop
          // through the HTML as a string
          if (response.headers('content-type').includes('json')) {
            $scope.messages = response.data
          }
        })
        .catch(() => {
          // ignore errors
        })
    }
    pollSystemMessages()
    setInterval(pollSystemMessages, MESSAGE_POLL_INTERVAL)
  },
])

export default App.controller('SystemMessageController', [
  '$scope',
  function ($scope) {
    $scope.hidden = $.localStorage(`systemMessage.hide.${$scope.message._id}`)
    $scope.protected = $scope.message._id === 'protected'
    $scope.htmlContent = $scope.message.content

    return ($scope.hide = function () {
      if (!$scope.protected) {
        // do not allow protected messages to be hidden
        $scope.hidden = true
        return $.localStorage(`systemMessage.hide.${$scope.message._id}`, true)
      }
    })
  },
])