Type "midi" is not assignable to type "PermissionName"

[martinboue]

Description

Existing type PermissionName is missing "midi", actual type:

type PermissionName = "geolocation" | "notifications" | "persistent-storage" | "push" | "screen-wake-lock" | "xr-spatial-tracking";

According to MDN documentation, "midi" value is supported by at least 3 browser engines.

Solution

Add "midi" to PermissionName type here:

TypeScript-DOM-lib-generator/inputfiles/addedTypes.jsonc

Lines 335 to 354 in 2939d4f

	"PermissionName": {
	"name": "PermissionName",
	// This is a subset of the permissions defined in the spec:
	// https://w3c.github.io/powerful-features-registry/#registry-table-of-powerful-features
	// Please add a feature only when it's supported by multiple engines.
	"value": [
	// https://developer.mozilla.org/en-US/docs/Web/API/Geolocation_API#browser_compatibility
	"geolocation",
	// https://developer.mozilla.org/en-US/docs/Web/API/Notifications_API#browser_compatibility
	"notifications",
	// https://developer.mozilla.org/en-US/docs/Web/API/Storage_API#browser_compatibility
	"persistent-storage",
	// https://developer.mozilla.org/en-US/docs/Web/API/Push_API#browser_compatibility
	"push",
	// https://developer.mozilla.org/en-US/docs/Web/API/Screen_Wake_Lock_API#browser_compatibility
	"screen-wake-lock",
	// WebXR is also actually Blink-only
	// https://developer.mozilla.org/en-US/docs/Web/API/WebXR_Device_API#browser_compatibility
	"xr-spatial-tracking"
	]

Typescript version

5.4.5

Workaround

Force type:

navigator.permissions.query({ name: "midi" as PermissionName })

[saschanaz]

To be clear midi is only supported by 2 browser engines: Blink and Gecko but not WebKit, but 2 meets the standard. The list should be updated 👍

[martinboue]

Thanks @saschanaz