Presentation API published as a revised Candidate Recommendation

The Second Screen Working Group has published a revised Candidate Recommendation of the Presentation API. That specification defines an API to enable Web content to access presentation displays and use them for presenting Web content.

Since publication as Candidate Recommendation in July 2016, the Working Group updated algorithms in the specification to fix issues identified through testing and implementation feedback. The actual interfaces did not change. The API was also restricted to secure contexts. A complete list of changes is available.

by Maria Auday via W3C News

W3C Invites Implementations of UI Events KeyboardEvent code and key Values

The Web Platform Working Group invites implementation of UI Events KeyboardEvent code and key Values:

• UI Events KeyboardEvent code Values: This document provides an overview of the various keyboard layouts and specifies the KeyboardEvent.code values that should be used for each of the keys. Unlike the key values described in UIEvents-key, the code values are based only on the key’s physical location on the keyboard and do not vary based on the user’s current locale. This specification was formerly titled DOM Level 3 KeyboardEvent code Values.
• UI Events KeyboardEvent key Values: This document specifies the set of valid key attribute values that must be used in the KeyboardEvent.key attribute to encode the key’s meaning. The key value for a particular key will differ based on the user’s current locale setting.
  by Maria Auday via W3C News

Micropub is a W3C Recommendation

The Social Web Working Group has published a W3C Recommendation of Micropub. Micropub is a client-to-server protocol used to create, update and delete social networking content. Web and native apps can use Micropub to post notes, photos, events, and many others to servers that support the protocol. Users can choose to create content in a variety of client posting interfaces, while maintaining control of where the data is stored.

Prior to being adopted by the W3C Social Web Working Group for standardization, Micropub already had over a dozen independent implementations in the IndieWeb community. There are now over a dozen independent client and server implementations across a wide variety of languages and platforms.

by Maria Auday via W3C News

First Public Working Draft: CSS Logical Properties and Values Level 1

The Web Payments Working Group has published a First Public Working Draft of CSS Logical Properties and Values Level 1. This module introduces logical properties and values that provide the author with the ability to control layout through logical, rather than physical, direction and dimension mappings. The module defines logical properties and values for the features defined in CSS21. These properties are writing-mode relative equivalents of their corresponding physical properties.

by Maria Auday via W3C News

Motion Sensors Explainer Note Published

The Device and Sensors Working Group has published a Group Note of Motion Sensors Explainer. This explainer is an introduction to low-level and high-level motion sensors, their relationship, inner workings and common use-cases. Common cases of event filtering and sensor fusion are introduced with examples, showing how to apply that on sensors following the Generic Sensor API specification.

by Maria Auday via W3C News

First Public Working Draft: Orientation Sensor

The Device and Sensors Working Group has published a Working Draft of Orientation Sensor. This specification defines a base orientation sensor interface and concrete sensor subclasses to monitor the device’s physical orientation in relation to a stationary three dimensional Cartesian coordinate system.

by Maria Auday via W3C News

Spatial Data on the Web Best Practices Note Published

The Spatial Data on the Web Working Group has published a Group Note of Spatial Data on the Web Best Practices. This document advises on best practices related to the publication of spatial data on the Web and the use of Web technologies as they may be applied to location. The best practices presented here are intended for practitioners, including Web developers and geospatial experts, and are compiled based on evidence of real-world application. These best practices suggest a significant change of emphasis from traditional Spatial Data Infrastructures by adopting an approach based on general Web standards. As location is often the common factor across multiple datasets, spatial data is an especially useful addition to the Web of data.

by Maria Auday via W3C News

W3C Invites Implementations of ActivityPub

The Social Web Working Group invites implementation of a revised Candidate Recommendation of ActivityPub. ActivityPub allows websites a direct social connection to user software, including Follow, Like, Share, and Comment, without an intermediate social network provider. It is built on the ActivityStreams 2.0 data format, and iterates on the design of OStatus, which last month saw a wave of mainstream interest with Mastodon. It provides a client to server API for creating, updating and deleting content, as well as a federated server to server API for delivering notifications and subscribing to content.

by Maria Auday via W3C News

W3C Invites Implementations of CSS Grid Layout Module Level 1

The CSS Working Group invites implementation of the Candidate Recommendation of
by Maria Auday via W3C News

First Public Working Draft: HTML Microdata

The Web Platform Working Group has published a First Public Working Draft of HTML Microdata. This specification defines the HTML microdata mechanism. This mechanism allows machine-readable data to be embedded in HTML documents with an unambiguous parsing model. It is compatible with JSON, and can be written in a style which is convertible to RDF.

by Maria Auday via W3C News

HTML Media Capture is a Candidate Recommendation

The Device and Sensors Working Group has published a Candidate Recommendation of HTML Media Capture. The HTML Media Capture specification defines an HTML form extension that facilitates user access to a device’s media capture mechanism, such as a camera, or microphone, from within a file upload control.

by Maria Auday via W3C News

Two Notes Published by the Digital Publishing Interest Group

The Digital Publishing Interest Group has published two Group Notes:

• Web Publications Use Cases and Requirements: This document describes the various use cases highlighting the problems users and publishers face when these publications are to be used in a digital, Web environment. The requirements that come from those use cases provide the basis for the technical considerations in a companion document, currently entitled “Web Publications”.
• Web Publications for the Open Web Platform: Vision And Technical Challenges: This document introduces Web Publications, a vision for the future of digital publishing based on a fully native representation of documents within the Open Web Platform. Web publications can be packaged and they can be portable. They can work online or offline and can be accessible, linkable, and annotatable.

by Maria Auday via W3C News

Call for Review: Recommendation to enable decentralised notifications on the Web

The Social Web Working Group has published Linked Data Notifications (LDN).

LDN provides a mechanism for passing notifications around between clients and servers. Notifications can contain any data, and are expressed in RDF. The contents may be used internally by the receiving system, or exposed to a user through a consuming client application. Any resource can advertise a receiving endpoint (Inbox). This is a core building block for interoperable decentralized systems, as it enables servers (which may be personal datastores) to expose endpoints for receiving notifications from both client applications (like social network sites) and other servers (like nodes in a federated social network). Furthermore, the notifications are uniquely identifiable and reusable by other applications, so the data can serve multiple purposes, and people are not locked into using the application which originally generated a notification.

LDN is already demonstrated to work well with several other existing W3C standards, including the Web Annotations Protocol and Vocabulary, and Linked Data Platform servers can serve as LDN receivers out of the box.

by Maria Auday via W3C News

QB4ST: RDF Data Cube extensions for spatio-temporal components Note Published

The Spatial Data on the Web Working Group has published a Group Note of QB4ST: RDF Data Cube extensions for spatio-temporal components. This document describes an extension to the existing RDF Data Cube ontology to support specification of key metadata required to interpret spatio-temporal data. The RDF Data Cube defines CodedProperties, which relate to a reference system based on a list of terms. QB4ST provides generalized support for numeric and other ordered references systems, particularly Spatial Reference Systems and Temporal Reference Systems.

by Maria Auday via W3C News

Call for Review: XSL Transformations (XSLT) Version 3.0 Proposed Recommendation Published

The XSLT Working Group has published a Proposed Recommendation of XSL Transformations (XSLT) Version 3.0. This specification defines the syntax and semantics of XSLT 3.0, a language designed primarily for transforming XML documents into other XML documents. XSLT 3.0 is a revised version of the XSLT 2.0 Recommendation published on 23 January 2007. The primary purpose of the changes in this version of the language is to enable transformations to be performed in streaming mode, where neither the source document nor the result document is ever held in memory in its entirety. Another important aim is to improve the modularity of large stylesheets, allowing stylesheets to be developed from independently-developed components with a high level of software engineering robustness. Comments are welcome through 19 May.

by Maria Auday via W3C News

W3C Invites Implementations of Encoding

The Internationalization Working Group invites implementation of the Candidate Recommendation of Encoding. The UTF-8 encoding is the most appropriate encoding for interchange of Unicode, the universal coded character set. Therefore for new protocols and formats, as well as existing formats deployed in new contexts, this specification requires (and defines) the UTF-8 encoding.

by Maria Auday via W3C News

Call for Review: 3 Proposed Recommendations published for Social Web Working Group

The Social Web Working Group has published a Proposed Recommendation for three documents:

• Micropub: The Micropub protocol is used to create, update and delete posts on one’s own domain using third-party clients. Web apps and native apps (e.g., iPhone, Android) can use Micropub to post and edit articles, short notes, comments, likes, photos, events or other kinds of posts on your own website.
• Activity Streams 2.0: This specification details a model for representing potential and completed activities using the JSON format.
• Activity Vocabulary: The Activity Streams 2.0 Core Syntax defines the JSON syntax for Activity Streams and a set of abstract types and properties that describe past, present and future Activities. This document defines the vocabulary properties.

• Comments are welcome through 15 May 2017.

  
  by Maria Auday via W3C News

W3C Invites Implementations of ActivityPub

The Social Web Working Group invites implementation of the Candidate Recommendation of ActivityPub. The ActivityPub protocol is a decentralized social networking protocol based upon the ActivityStreams 2.0 data format. It provides a client to server API for creating, updating and deleting content, as well as a federated server to server API for delivering notifications and subscribing to content.

by Maria Auday via W3C News

First Public Working Draft: CSS Fill and Stroke Module Level 3

The Cascading Style Sheets Working Group has published a First Public Working Draft of CSS Fill and Stroke Module Level 3. This specification describes how text and SVG graphical elements are filled and stroked by defining a number of properties that control the appearance and shape of an element’s fill and stroke. The module contains the features of CSS relating to filling and stroking text and SVG shapes.

by Maria Auday via W3C News

W3C Invites Implementations of Beacon

The Web Performance Working Group invites implementation of the Candidate Recommendation of Beacon. This specification defines an interface that web developers can use to schedule asynchronous and non-blocking delivery of data that minimizes resource contention with other time-critical operations, while ensuring that such requests are still processed and delivered to destination.

by Maria Auday via W3C News