htmlVideo: Video component

View source: R/dashHtmlComponents.R

htmlVideoR Documentation

Video component

Description

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

Usage

htmlVideo(children=NULL, id=NULL, n_clicks=NULL,
n_clicks_timestamp=NULL, key=NULL, role=NULL, autoPlay=NULL,
controls=NULL, crossOrigin=NULL, height=NULL, loop=NULL,
muted=NULL, poster=NULL, preload=NULL, src=NULL, width=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, ...)

Arguments

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

autoPlay

A value equal to: 'autoplay', 'autoplay', 'autoplay' | logical. The audio or video should play as soon as possible.

controls

A value equal to: 'controls', 'controls' | logical. Indicates whether the browser should show playback controls to the user.

crossOrigin

Character. How the element handles cross-origin requests

height

Character | numeric. Specifies the height of elements listed here. For all other elements, use the CSS height property. Note: In some instances, such as <div>, this is a legacy attribute, in which case the CSS height property should be used instead.

loop

A value equal to: 'loop', 'loop' | logical. Indicates whether the media should start playing from the start when it's finished.

muted

A value equal to: 'muted', 'muted' | logical. Indicates whether the audio will be initially silenced on page load.

poster

Character. A URL indicating a poster frame to show until the user plays or seeks.

preload

Character. Indicates whether the whole resource, parts of it or nothing should be preloaded.

src

Character. The URL of the embeddable content.

width

Character | numeric. For the elements listed here, this establishes the element's width. Note: For all other instances, such as <div>, this is a legacy attribute, in which case the CSS width property should be used instead.

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-*''

Value

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

Examples

if (interactive()) {
  library(dash)

  app <- Dash$new()

  app$layout(
    htmlDiv(list(
      htmlVideo(
        src = file.path('https://ia800303.us.archive.org',
              '18/items/bacteria_friend_and_foe',
              'bacteria_friend_and_foe_512kb.mp4',
              fsep = '/'),
        controls = TRUE,
        title = "Bacteria: Friend and Foe"
      )
      )
    )
  )

  app$run_server()
}

dash documentation built on June 23, 2022, 9:11 a.m.