DOM: Font Loading API

TypeScript Version: 2.1.1

Code

// An example usage of Font Loading API
var font = new FontFace("SinkinSans","url('SinkinSans.ttf') format('truetype')");
font.load().then(()=>{
    // font loaded
    document.fonts.add(font);
});

Expected behavior: FontFace, FontFaceSet and document.fonts must exist in the DOM typings

Actual behavior: TypeScript generates an error, it still emits but errors are shown.

More info:

• https://googlechrome.github.io/samples/font-face-set/
• https://developer.mozilla.org/en-US/docs/Web/API/CSS_Font_Loading_API
• https://webkit.org/blog/6643/improved-font-loading/

[mrozekma]

Note for future readers: these were added to DefinitelyTyped as @types/css-font-loading-module

[mhegazy]

This is still a working draft; Working Drafts are not included in lib.d.ts until they reach the Candidate Recommendation status, we would recommend putting this in definitelytyped instead.