<octopod-cover>: The Media Cover element

The <octopod-cover> element draws current chapter art while media is playing in the browser window.

When media is playing the element will look for updates to the current chapter and is going to show one of three things:

  • A placeholder when no image is specified and no current chapter information was found.
  • The main image specified inside the image attribute.
  • A chapter image specified in the chapter data for the current chapter.
<octopod-cover
  target="podcasting20-player"
  image="https://noagendaassets.com/enc/1601061118.678_pciavatar.jpg"
  chapters="https://studio.hypercatcher.com/chapters/podcast/http:mp3s.nashownotes.compc20rss.xml/episode/http:adam.curry.comhtmlPC201020201106Podcas-ZV7ms5XRW9t58ntbVrTRT4WJdFKD2p.html"
></octopod-cover>

<audio
  id="podcasting20-player"
  src="https://mp3s.nashownotes.com/PC20-10-2020-11-06-Final.mp3"
  controls
>
  Your browser does not support audio playback.
</audio>

The above example shows usage of the <octopod-cover> element by specifying paths to an image and chapter data for a podcast episode. In order to make the element aware of changes to the current chapter, the ID of the media element we want to show chapter images for is specified inside the target attribute.

Attributes

This element's attributes include the global attributes.

  • chapters
    The URL of the media chapters for the active media.

  • image
    The URL of the cover image for the active media.

  • target
    The element ID of the HTMLMediaElement instance this element will observe for media events.

Properties

This element inherits properties from its ancestors HTMLElement, Element, Node and EventTarget.

  • chapters (read-only)
    An array containing chapter information for the active media.

  • chaptersUrl
    The URL of the media chapters for the active media.

  • currentChapter (read-only)
    The current chapter information for the active media.

  • currentTime (read-only)
    The current timestamp for the active media. If no media element is specified, changing this value will still update the current chapter.

  • imageUrl
    The URL of the cover image for the active media.

  • targetPlayer
    The HTMLMediaElement instance that's playing the media this element is observing for media events.

Methods

This element inherits methods from its ancestors HTMLElement, Element, Node and EventTarget.

Events

This element inherits events from its ancestors HTMLElement and Element.

This element acts as wrapper around an instance of HTMLMediaElement, events emitted by the active media element will also be emitted by this element.

  • loadedchapters
    Fired when chapter data has been loaded.

  • chapterupdate
    Fired when the current chapter has been updated.

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