Contact emails
green...@google.com,
byl...@google.com
Explainer
https://github.com/WICG/web-printing
Specification
https://wicg.github.io/web-printing
Summary
Enables deeper integration with printer-related functionality in Isolated Web Apps.
This API is targeted at Isolated Web Apps only and it's following the
https://www.chromium.org/blink/launching-features/isolated-web-apps/ process.
This API provides a set of JavaScript methods that allow developers to query local printers, submit print jobs to the most appropriate printers, and manage print job options and status. To represent these concepts, it relies on the attribute names and semantics from the Internet Printing Protocol (IPP) specifications.
Blink component
Blink
Web Feature ID
No information provided
Motivation
The Web Printing API strives to improve the general printing experience with a primary focus on remote/virtual desktop systems by providing a seamless way for remote clients to interact with printers directly in Isolated Web Apps.
The proposed API methods unlock proper printer forwarding by allowing the remote client to access essential information about printers on the near side. This eliminates the need for tedious manual configuration, such as setting up virtual printers, and excessive user interactions such as having to click through print job settings twice (once on the remote side & once locally). It also enables remote document rendering to be tailored to the capabilities of the local printer.
Initial public proposal
https://github.com/WICG/proposals/issues/120
TAG review
https://github.com/w3ctag/design-reviews/issues/910
TAG review status
Pending
Risks
Interoperability and Compatibility
Other browser may choose to implement this API.
Gecko: No signal
WebKit: No signal
Web developers: Positive (
https://github.com/WICG/proposals/issues/120#issuecomment-1752979770) Positive feedback from Citrix.
Other signals:
WebView application risks
Does this intent deprecate or change behavior of existing APIs,
such that it has potentially high risk for Android WebView-based
applications?
No information provided
Debuggability
No information provided
Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?
No
No
Web Platform Tests are planned for the cross-platform launch. Creating Web Platform Tests will be complicated because this API connects to physical devices and this would require extensions to BiDi driver API.
Flag name on about://flags
enable-printing-web-api
Finch feature name
WebPrinting
Rollout plan
Will ship enabled for all users
Requires code in //chrome?
True
Tracking bug
https://b.corp.google.com/issues/302505962
Launch bug
https://launch.corp.google.com/launch/4427089
Estimated milestones
Anticipated spec changes
Open questions about a feature may be a source of future web compat or
interop issues. Please list open issues (e.g. links to known github
issues in the project for the feature specification) whose resolution
may introduce web compat/interop risk (e.g., changing to naming or
structure of the API in a non-backward-compatible way).
No information provided
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/5100352332627968?gate=5186894732460032
Links to previous Intent discussions
Intent to Prototype:
https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CACZWnOqSBA6cxpngy5cutJz9051RLAGgHzmHMijwvDuRTvD0Mw%40mail.gmail.com