Struct BrowserCapabilities 

pub struct BrowserCapabilities {
    pub secure_context: bool,
    pub wasm: bool,
    pub webgl2: bool,
    pub webgpu: bool,
    pub immersive_ar: bool,
    pub immersive_vr: bool,
    pub webgl_error: Option<String>,
    pub xr_error: Option<String>,
}

Observed browser APIs and support queries, not permission grants or hardware proof.

wasm-bindgen generates the JavaScript getters and TypeScript declaration from these Rust fields. Browser hosts must free the returned owned snapshot.

Fields

secure_context: bool

Whether the browser considers this a secure context.

wasm: bool

Whether the WebAssembly object is present.

webgl2: bool

Whether a temporary WebGL 2 context could be created.

webgpu: bool

Whether navigator.gpu is present; no adapter or device was requested.

immersive_ar: bool

Result of isSessionSupported("immersive-ar").

immersive_vr: bool

Result of isSessionSupported("immersive-vr").

webgl_error: Option<String>

Diagnostic when the WebGL probe failed rather than returning no context.

xr_error: Option<String>

Diagnostics for rejected or malformed XR support queries, with mode labels.

Trait Implementations

impl Clone for BrowserCapabilities

fn clone(&self) -> BrowserCapabilities

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BrowserCapabilities

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for BrowserCapabilities

fn default() -> BrowserCapabilities

Returns the “default value” for a type.

impl Eq for BrowserCapabilities

impl From<BrowserCapabilities> for JsValue

fn from(value: BrowserCapabilities) -> Self

Converts to this type from the input type.

impl FromWasmAbi for BrowserCapabilities

type Abi = WasmPtr<WasmRefCell<BrowserCapabilities>>

The Wasm ABI type that this converts from when coming back out from the ABI boundary.

unsafe fn from_abi(js: Self::Abi) -> Self

Recover a Self from Self::Abi.

impl IntoWasmAbi for BrowserCapabilities

type Abi = WasmPtr<WasmRefCell<BrowserCapabilities>>

The Wasm ABI type that this converts into when crossing the ABI boundary.

fn into_abi(self) -> Self::Abi

Convert self into Self::Abi so that it can be sent across the wasm ABI boundary.

impl LongRefFromWasmAbi for BrowserCapabilities

type Abi = WasmPtr<WasmRefCell<BrowserCapabilities>>

Same as RefFromWasmAbi::Abi

type Anchor = RcRef<BrowserCapabilities>

Same as RefFromWasmAbi::Anchor

unsafe fn long_ref_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl OptionFromWasmAbi for BrowserCapabilities

fn is_none(abi: &Self::Abi) -> bool

Tests whether the argument is a “none” instance. If so it will be deserialized as None, and otherwise it will be passed to FromWasmAbi.

impl OptionIntoWasmAbi for BrowserCapabilities

fn none() -> Self::Abi

Returns an ABI instance indicating “none”, which JS will interpret as the None branch of this option.

impl PartialEq for BrowserCapabilities

fn eq(&self, other: &BrowserCapabilities) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl RefFromWasmAbi for BrowserCapabilities

type Abi = WasmPtr<WasmRefCell<BrowserCapabilities>>

The Wasm ABI type references to Self are recovered from.

type Anchor = RcRef<BrowserCapabilities>

The type that holds the reference to Self for the duration of the invocation of the function that has an &Self parameter. This is required to ensure that the lifetimes don’t persist beyond one function call, and so that they remain anonymous.

unsafe fn ref_from_abi(js: Self::Abi) -> Self::Anchor

Recover a Self::Anchor from Self::Abi.

impl RefMutFromWasmAbi for BrowserCapabilities

type Abi = WasmPtr<WasmRefCell<BrowserCapabilities>>

Same as RefFromWasmAbi::Abi

type Anchor = RcRefMut<BrowserCapabilities>

Same as RefFromWasmAbi::Anchor

unsafe fn ref_mut_from_abi(js: Self::Abi) -> Self::Anchor

Same as RefFromWasmAbi::ref_from_abi

impl StructuralPartialEq for BrowserCapabilities

impl SupportsConstructor for BrowserCapabilities

impl SupportsInstanceProperty for BrowserCapabilities

impl SupportsStaticProperty for BrowserCapabilities

impl TryFromJsValue for BrowserCapabilities

fn try_from_js_value(value: JsValue) -> Result<Self, JsValue>

Performs the conversion.

fn try_from_js_value_ref(value: &JsValue) -> Option<Self>

Performs the conversion.

impl VectorFromWasmAbi for BrowserCapabilities

type Abi = <Box<[JsValue]> as FromWasmAbi>::Abi

unsafe fn vector_from_abi(js: Self::Abi) -> Box<[BrowserCapabilities]>

impl VectorIntoWasmAbi for BrowserCapabilities

type Abi = <Box<[JsValue]> as IntoWasmAbi>::Abi

fn vector_into_abi(vector: Box<[BrowserCapabilities]>) -> Self::Abi

impl WasmDescribe for BrowserCapabilities

fn describe()

impl WasmDescribeVector for BrowserCapabilities

fn describe_vector()