Intent to Prototype: Language support for CanvasTextDrawingStyles
Chromestatus
Contact emails
sche...@chromium.orgExplainer
https://github.com/whatwg/html/pull/10873Specification
https://github.com/whatwg/html/pull/10873Summary
The <canvas> DOM element, like all DOM elements, accepts a `lang` attribute that is used to define language specific treatment for font selection (when fonts have locale specific glyphs). Browsers respect this attribute. However, when an OffscreenCanvas is created there is no way to set locale information, possibly resulting in a state where an offscreen canvas produces rendered results that differ from the canvas in which it's output is used. This feature adds a `lang` IDL attribute to CanvasTextDrawingStyles to give developers direct control over the language for the text drawing and metrics.
Blink component
Blink>CanvasMotivation
Provide a way to set the primary language for font resolution in OffscreenCanvas, so that offscreen and regular canvas content uses the same font information. This is blocking Canvas Text Metrics Additions because it was raised in the spec discussion.
Initial public proposal
https://github.com/whatwg/html/issues/10862TAG review
NoneTAG review status
PendingRisks
Interoperability and Compatibility
None
Gecko: No signal
WebKit: No signal
Web developers: No signals
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?
None
Debuggability
None
Is this feature fully tested by web-platform-tests?
NoFlag name on about://flags
NoneFinch feature name
NoneNon-finch justification
NoneRequires code in //chrome?
FalseTracking bug
https://issues.chromium.org/issues/385006131Estimated milestones
No milestones specified