Overleaf/services/web/frontend/js/components/inputSuggestions.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
 * DS207: Consider shorter variations of null checks
 * Full docs: https://github.com/decaffeinate/decaffeinate/blob/master/docs/suggestions.md
 */
import App from '../base'
const inputSuggestionsController = function($scope, $element, $attrs, Keys) {
  const ctrl = this
  ctrl.showHint = false
  ctrl.hasFocus = false
  ctrl.handleFocus = function() {
    ctrl.hasFocus = true
    return (ctrl.suggestion = null)
  }
  ctrl.handleBlur = function() {
    ctrl.showHint = false
    ctrl.hasFocus = false
    ctrl.suggestion = null
    return ctrl.onBlur()
  }
  ctrl.handleKeyDown = function($event) {
    if (
      ($event.which === Keys.TAB || $event.which === Keys.ENTER) &&
      ctrl.suggestion != null &&
      ctrl.suggestion !== ''
    ) {
      $event.preventDefault()
      ctrl.localNgModel += ctrl.suggestion
    }
    ctrl.suggestion = null
    return (ctrl.showHint = false)
  }
  $scope.$watch('$ctrl.localNgModel', function(newVal, oldVal) {
    if (ctrl.hasFocus && newVal !== oldVal) {
      ctrl.suggestion = null
      ctrl.showHint = false
      return ctrl
        .getSuggestion({ userInput: newVal })
        .then(function(suggestion) {
          if (suggestion != null && newVal === ctrl.localNgModel) {
            ctrl.showHint = true
            return (ctrl.suggestion = suggestion.replace(newVal, ''))
          }
        })
        .catch(() => (ctrl.suggestion = null))
    }
  })
}

export default App.component('inputSuggestions', {
  bindings: {
    localNgModel: '=ngModel',
    localNgModelOptions: '=?ngModelOptions',
    getSuggestion: '&',
    onBlur: '&?',
    inputId: '@?',
    inputName: '@?',
    inputPlaceholder: '@?',
    inputType: '@?',
    inputRequired: '=?'
  },
  controller: inputSuggestionsController,
  template: [
    '<div class="input-suggestions">',
    '<div class="form-control input-suggestions-shadow">',
    '<span ng-bind="$ctrl.localNgModel"',
    ' class="input-suggestions-shadow-existing"',
    ' ng-show="$ctrl.showHint">',
    '</span>',
    '<span ng-bind="$ctrl.suggestion"',
    ' class="input-suggestions-shadow-suggested"',
    ' ng-show="$ctrl.showHint">',
    '</span>',
    '</div>',
    '<input type="text"',
    ' class="form-control input-suggestions-main"',
    ' ng-focus="$ctrl.handleFocus()"',
    ' ng-keyDown="$ctrl.handleKeyDown($event)"',
    ' ng-blur="$ctrl.handleBlur()"',
    ' ng-model="$ctrl.localNgModel"',
    ' ng-model-options="$ctrl.localNgModelOptions"',
    ' ng-model-options="{ debounce: 50 }"',
    ' ng-attr-id="{{ ::$ctrl.inputId }}"',
    ' ng-attr-placeholder="{{ ::$ctrl.inputPlaceholder }}"',
    ' ng-attr-type="{{ ::$ctrl.inputType }}"',
    ' ng-attr-name="{{ ::$ctrl.inputName }}"',
    ' ng-required="::$ctrl.inputRequired">',
    '</div>'
  ].join('')
})