htmlForm: Form component
In dashHtmlComponents: Vanilla HTML Components for 'Dash'

Description Usage Arguments Value Examples

Form is a wrapper for the <form> HTML5 element. For detailed attribute info see: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/form

htmlForm(children=NULL, id=NULL, n_clicks=NULL,
n_clicks_timestamp=NULL, key=NULL, role=NULL, accept=NULL,
acceptCharset=NULL, action=NULL, autoComplete=NULL,
encType=NULL, method=NULL, name=NULL, noValidate=NULL,
target=NULL, accessKey=NULL, className=NULL,
contentEditable=NULL, contextMenu=NULL, dir=NULL,
draggable=NULL, hidden=NULL, lang=NULL, spellCheck=NULL,
style=NULL, tabIndex=NULL, title=NULL, loading_state=NULL,
...)

`children`	A list of or a singular dash component, string or number. The children of this component
`id`	Character. The ID of this component, used to identify dash components in callbacks. The ID needs to be unique across all of the components in an app.
`n_clicks`	Numeric. An integer that represents the number of times that this element has been clicked on.
`n_clicks_timestamp`	Numeric. An integer that represents the time (in ms since 1970) at which n_clicks changed. This can be used to tell which button was changed most recently.
`key`	Character. A unique identifier for the component, used to improve performance by React.js while rendering components See https://reactjs.org/docs/lists-and-keys.html for more info
`role`	Character. The ARIA role attribute
`accept`	Character. List of types the server accepts, typically a file type.
`acceptCharset`	Character. List of supported charsets.
`action`	Character. The URI of a program that processes the information submitted via the form.
`autoComplete`	Character. Indicates whether controls in this form can by default have their values automatically completed by the browser.
`encType`	Character. Defines the content type of the form date when the method is POST.
`method`	Character. Defines which HTTP method to use when submitting the form. Can be GET (default) or POST.
`name`	Character. Name of the element. For example used by the server to identify the fields in form submits.
`noValidate`	A value equal to: 'novalidate', 'novalidate', 'novalidate' \| logical. This attribute indicates that the form shouldn't be validated when submitted.
`target`	Character.
`accessKey`	Character. Keyboard shortcut to activate or add focus to the element.
`className`	Character. Often used with CSS to style elements with common properties.
`contentEditable`	Character. Indicates whether the element's content is editable.
`contextMenu`	Character. Defines the ID of a <menu> element which will serve as the element's context menu.
`dir`	Character. Defines the text direction. Allowed values are ltr (Left-To-Right) or rtl (Right-To-Left)
`draggable`	Character. Defines whether the element can be dragged.
`hidden`	A value equal to: 'hidden', 'hidden' \| logical. Prevents rendering of given element, while keeping child elements, e.g. script elements, active.
`lang`	Character. Defines the language used in the element.
`spellCheck`	Character. Indicates whether spell checking is allowed for the element.
`style`	Named list. Defines CSS styles which will override styles previously set.
`tabIndex`	Character. Overrides the browser's default tab order and follows the one specified instead.
`title`	Character. Text to be displayed in a tooltip when hovering over the element.
`loading_state`	Lists containing elements 'is_loading', 'prop_name', 'component_name'. those elements have the following types: - is_loading (logical; optional): determines if the component is loading or not - prop_name (character; optional): holds which property is loading - component_name (character; optional): holds the name of the component that is loading. Object that holds the loading state object coming from dash-renderer
`...`	wildcards allowed have the form: ''data-', 'aria-''

named list of JSON elements corresponding to React.js properties and their values

if (interactive() && require(dash)) {
  library(dash)
  library(dashHtmlComponents)
  library(dashCoreComponents)

  app <- Dash$new()

  app$layout(htmlDiv(list(
    htmlForm(children=list(
      htmlP(children=list('Username: ',
                          dccInput(type='text', 
                                   id='username', 
                                   placeholder='username'))),
      htmlP(children=list('Password: ',
                          dccInput(type='password', 
                                   id='password',
                                   placeholder='password'))),
      htmlButton(children=list('Login'), 
                 type='submit', 
                 id='login_button')
          )
        )
      )
    )
  )

  app$run_server()              
}