CE-HTML - Features

Features

CE-HTML consists of the following internet languages:

  • ECMAScript 262, 3rd edition
  • XHTML 1.0 transitional/strict
  • CSS TV Profile 1.0
  • XMLHttpRequest object
  • DOM level 2.0 (Core, Style, Events, HTML)
  • a number of specific extensions for CE devices.

CE-HTML can both be used in-home through UPnP as via the Internet. It allows the content creator to use the common and known languages in the web to define a user interface that can be controlled on a CE device. A CE-HTML client typically consists of a web browser adapted for the CE-HTML standard running on a consumer electronics device. CE-HTML offers specific extensions for these browsers such as :

  • Multi-tap or other CE-specific alpha-numeric input support, by making use of the CSS3 input-format tag.
  • Media (audio/video) playout through the use of an audio/video scripting object.
  • Operation via remote control (spatial navigation) using the up, down, left, right and OK keys
  • Client capability matching – to match the client capabilities to the user interfaces that the server offers. For this purpose, each CE-HTML compliant client is making use of a capability profile. This profile, placed in the user-agent string of the client, lets the server know what part of CE-HTML is supported by the client. The server in turn transmits its capabilities in a so called "XML UI Listing" so the client can choose between the various CE-HTML user interfaces the server offers.
  • User interface profiles for usage on CE devices such as a television. These are predefined capability profiles on which a CE-HTML client can base its capabilities. They define e.g. the fonts supported, screen-size of the device and the media that is supported by the a/v scripting object in the device. All profiles are based on a 10-foot user interface.
  • Third-party notifications which allow a client to poll for messages from an external server, and display these to the user regardless of the currently displayed user interface.
  • A specific new MIME-type for CE-HTML content: "application/ce-html+xml".

Typical CE-HTML code looks like this:

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