acceptlang:
  label: HTTP Accept-Language header
  description: Provides the language which has been set in the browser. e.g. <em>en-AU</em>
  form:
    key:
      '#type': value
      '#value': 'navigator.language'
      '#prefix': <div>User accept language source has been taken from the "navigator.language" property from browser. See for <a href="https://developer.mozilla.org/en-US/docs/Web/API/Navigator/language">details</a></div>

cookie:
  label: HTTP cookie
  description: Provides the value of a cookie by name.
  form:
    name:
      '#type': textfield
      '#title': Cookie name
      '#description': The name of the cookie to be used as source.
      '#required': true

get:
  label: HTTP GET request
  description: Provides the URL of the page.
  form:
    resource_url:
      '#type': textfield
      '#title': Resource URL
      '#description': A URL to be used as a source.
      '#required': true

httpuseragent:
  label: HTTP User agent
  description: Provides the user agent string.
  form:
    key:
      '#type': value
      '#value': 'navigator.userAgent'
      '#prefix': <div>User accept parameter source has been taken from the "navigator.userAgent" property from browser. See for <a href="https://developer.mozilla.org/en-US/docs/Web/API/Navigator/userAgent">details</a></div>

meta:
  label: HTML meta tag
  description: Provides a list of values in a metatag.
  form:
    attribute_name:
      '#type': textfield
      '#title': Meta attribute name
      '#description': The metatag attribute "name" value to be used as a source.
      '#required': true

query:
  label: URL query parameter
  description: Provides the value of a query parameter.
  form:
    param:
      '#type': textfield
      '#title': Parameter name
      '#description': The URL querystring parameter to be used as a source.
      '#required': true

time:
  label: Current time
  description: Provides the time of the user’s browser.
  form:
    part:
      '#type': select
      '#title': Part
      '#description': The part of the current time to be used as a source.
      '#options':
        hour: Hours
        minute: Minutes
        second: Seconds
      '#required': true