Struct web_sys::CssRule

#[repr(transparent)]pub struct CssRule { /* fields omitted */ }

The CssRule class.

MDN Documentation

This API requires the following crate features to be activated: CssRule

Implementations

impl CssRule

pub fn type_(&self) -> u16

Getter for the type field of this object.

MDN Documentation

This API requires the following crate features to be activated: CssRule

impl CssRule

pub fn css_text(&self) -> String

Getter for the cssText field of this object.

MDN Documentation

This API requires the following crate features to be activated: CssRule

impl CssRule

pub fn set_css_text(&self, value: &str)

Setter for the cssText field of this object.

MDN Documentation

This API requires the following crate features to be activated: CssRule

impl CssRule

pub fn parent_rule(&self) -> Option<CssRule>

Getter for the parentRule field of this object.

MDN Documentation

This API requires the following crate features to be activated: CssRule

impl CssRule

pub fn parent_style_sheet(&self) -> Option<CssStyleSheet>

Getter for the parentStyleSheet field of this object.

MDN Documentation

This API requires the following crate features to be activated: CssRule, CssStyleSheet

impl CssRule

pub const STYLE_RULE: u16

The CSSRule.STYLE_RULE const.

This API requires the following crate features to be activated: CssRule

pub const CHARSET_RULE: u16

The CSSRule.CHARSET_RULE const.

This API requires the following crate features to be activated: CssRule

pub const IMPORT_RULE: u16

The CSSRule.IMPORT_RULE const.

This API requires the following crate features to be activated: CssRule

pub const MEDIA_RULE: u16

The CSSRule.MEDIA_RULE const.

This API requires the following crate features to be activated: CssRule

pub const FONT_FACE_RULE: u16

The CSSRule.FONT_FACE_RULE const.

This API requires the following crate features to be activated: CssRule

pub const PAGE_RULE: u16

The CSSRule.PAGE_RULE const.

This API requires the following crate features to be activated: CssRule

pub const NAMESPACE_RULE: u16

The CSSRule.NAMESPACE_RULE const.

This API requires the following crate features to be activated: CssRule

pub const KEYFRAMES_RULE: u16

The CSSRule.KEYFRAMES_RULE const.

This API requires the following crate features to be activated: CssRule

pub const KEYFRAME_RULE: u16

The CSSRule.KEYFRAME_RULE const.

This API requires the following crate features to be activated: CssRule

pub const COUNTER_STYLE_RULE: u16

The CSSRule.COUNTER_STYLE_RULE const.

This API requires the following crate features to be activated: CssRule

pub const SUPPORTS_RULE: u16

The CSSRule.SUPPORTS_RULE const.

This API requires the following crate features to be activated: CssRule

pub const FONT_FEATURE_VALUES_RULE: u16

The CSSRule.FONT_FEATURE_VALUES_RULE const.

This API requires the following crate features to be activated: CssRule

Methods from Deref<Target = Object>

pub fn constructor(&self) -> Function

The constructor property returns a reference to the Object constructor function that created the instance object.

MDN documentation

pub fn has_own_property(&self, property: &JsValue) -> bool

The hasOwnProperty() method returns a boolean indicating whether the object has the specified property as its own property (as opposed to inheriting it).

MDN documentation

pub fn is_prototype_of(&self, value: &JsValue) -> bool

The isPrototypeOf() method checks if an object exists in another object’s prototype chain.

MDN documentation

pub fn property_is_enumerable(&self, property: &JsValue) -> bool

The propertyIsEnumerable() method returns a Boolean indicating whether the specified property is enumerable.

MDN documentation

pub fn to_locale_string(&self) -> JsString

The toLocaleString() method returns a string representing the object. This method is meant to be overridden by derived objects for locale-specific purposes.

MDN documentation

pub fn to_string(&self) -> JsString

The toString() method returns a string representing the object.

MDN documentation

pub fn value_of(&self) -> Object

The valueOf() method returns the primitive value of the specified object.

MDN documentation

Methods from Deref<Target = JsValue>

pub const NULL: JsValue

pub const UNDEFINED: JsValue

pub const TRUE: JsValue

pub const FALSE: JsValue

pub fn as_f64(&self) -> Option<f64>

Returns the f64 value of this JS value if it’s an instance of a number.

If this JS value is not an instance of a number then this returns None.

pub fn is_string(&self) -> bool

Tests whether this JS value is a JS string.

pub fn as_string(&self) -> Option<String>

If this JS value is a string value, this function copies the JS string value into wasm linear memory, encoded as UTF-8, and returns it as a Rust String.

To avoid the copying and re-encoding, consider the JsString::try_from() function from js-sys instead.

If this JS value is not an instance of a string or if it’s not valid utf-8 then this returns None.

UTF-16 vs UTF-8

JavaScript strings in general are encoded as UTF-16, but Rust strings are encoded as UTF-8. This can cause the Rust string to look a bit different than the JS string sometimes. For more details see the documentation about the str type which contains a few caveats about the encodings.

pub fn as_bool(&self) -> Option<bool>

Returns the bool value of this JS value if it’s an instance of a boolean.

If this JS value is not an instance of a boolean then this returns None.

pub fn is_null(&self) -> bool

Tests whether this JS value is null

pub fn is_undefined(&self) -> bool

Tests whether this JS value is undefined

pub fn is_symbol(&self) -> bool

Tests whether the type of this JS value is symbol

pub fn is_object(&self) -> bool

Tests whether typeof self == "object" && self !== null.

pub fn is_function(&self) -> bool

Tests whether the type of this JS value is function.

pub fn is_truthy(&self) -> bool

Tests whether the value is “truthy”.

pub fn is_falsy(&self) -> bool

Tests whether the value is “falsy”.

Trait Implementations

impl AsRef<CssRule> for CssConditionRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<CssRule> for CssCounterStyleRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<CssRule> for CssPageRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<CssRule> for CssRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<CssRule> for CssStyleRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<CssRule> for CssSupportsRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<CssRule> for CssFontFaceRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<CssRule> for CssFontFeatureValuesRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<CssRule> for CssGroupingRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<CssRule> for CssImportRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<CssRule> for CssKeyframeRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<CssRule> for CssKeyframesRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<CssRule> for CssMediaRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<CssRule> for CssNamespaceRule

fn as_ref(&self) -> &CssRule

Performs the conversion.

impl AsRef<JsValue> for CssRule

fn as_ref(&self) -> &JsValue

Performs the conversion.

impl AsRef<Object> for CssRule

fn as_ref(&self) -> &Object

Performs the conversion.

impl Clone for CssRule

fn clone(&self) -> CssRule

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for CssRule

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

Formats the value using the given formatter.

impl Deref for CssRule

type Target = Object

The resulting type after dereferencing.

fn deref(&self) -> &Object

Dereferences the value.

impl Eq for CssRule

impl From<CssConditionRule> for CssRule

fn from(obj: CssConditionRule) -> CssRule

Performs the conversion.

impl From<CssCounterStyleRule> for CssRule

fn from(obj: CssCounterStyleRule) -> CssRule

Performs the conversion.

impl From<CssFontFaceRule> for CssRule

fn from(obj: CssFontFaceRule) -> CssRule

Performs the conversion.

impl From<CssFontFeatureValuesRule> for CssRule

fn from(obj: CssFontFeatureValuesRule) -> CssRule

Performs the conversion.

impl From<CssGroupingRule> for CssRule

fn from(obj: CssGroupingRule) -> CssRule

Performs the conversion.

impl From<CssImportRule> for CssRule

fn from(obj: CssImportRule) -> CssRule

Performs the conversion.

impl From<CssKeyframeRule> for CssRule

fn from(obj: CssKeyframeRule) -> CssRule

Performs the conversion.

impl From<CssKeyframesRule> for CssRule

fn from(obj: CssKeyframesRule) -> CssRule

Performs the conversion.

impl From<CssMediaRule> for CssRule

fn from(obj: CssMediaRule) -> CssRule

Performs the conversion.

impl From<CssNamespaceRule> for CssRule

fn from(obj: CssNamespaceRule) -> CssRule

Performs the conversion.

impl From<CssPageRule> for CssRule

fn from(obj: CssPageRule) -> CssRule

Performs the conversion.

impl From<CssRule> for JsValue

fn from(obj: CssRule) -> JsValue

Performs the conversion.

impl From<CssRule> for Object

fn from(obj: CssRule) -> Object

Performs the conversion.

impl From<CssStyleRule> for CssRule

fn from(obj: CssStyleRule) -> CssRule

Performs the conversion.

impl From<CssSupportsRule> for CssRule

fn from(obj: CssSupportsRule) -> CssRule

Performs the conversion.

impl From<JsValue> for CssRule

fn from(obj: JsValue) -> CssRule

Performs the conversion.

impl FromWasmAbi for CssRule

type Abi = <JsValue as FromWasmAbi>::Abi

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 CssRule

type Abi = <JsValue as IntoWasmAbi>::Abi

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<'a> IntoWasmAbi for &'a CssRule

type Abi = <&'a JsValue as IntoWasmAbi>::Abi

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 JsCast for CssRule

fn instanceof(val: &JsValue) -> bool

Performs a dynamic instanceof check to see whether the JsValue provided is an instance of this type.

fn unchecked_from_js(val: JsValue) -> Self

Performs a zero-cost unchecked conversion from a JsValue into an instance of Self

fn unchecked_from_js_ref(val: &JsValue) -> &Self

Performs a zero-cost unchecked conversion from a &JsValue into an instance of &Self.

pub fn has_type<T>(&self) -> bool where
    T: JsCast, 

Test whether this JS value has a type T.

pub fn dyn_into<T>(self) -> Result<T, Self> where
    T: JsCast, 

Performs a dynamic cast (checked at runtime) of this value into the target type T.

pub fn dyn_ref<T>(&self) -> Option<&T> where
    T: JsCast, 

Performs a dynamic cast (checked at runtime) of this value into the target type T.

pub fn unchecked_into<T>(self) -> T where
    T: JsCast, 

Performs a zero-cost unchecked cast into the specified type.

pub fn unchecked_ref<T>(&self) -> &T where
    T: JsCast, 

Performs a zero-cost unchecked cast into a reference to the specified type.

pub fn is_instance_of<T>(&self) -> bool where
    T: JsCast, 

Test whether this JS value is an instance of the type T.

pub fn is_type_of(val: &JsValue) -> bool

Performs a dynamic check to see whether the JsValue provided is a value of this type.

impl OptionFromWasmAbi for CssRule

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 CssRule

fn none() -> Self::Abi

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

impl<'a> OptionIntoWasmAbi for &'a CssRule

fn none() -> Self::Abi

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

impl PartialEq<CssRule> for CssRule

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl RefFromWasmAbi for CssRule

type Abi = <JsValue as RefFromWasmAbi>::Abi

The wasm ABI type references to Self are recovered from.

type Anchor = ManuallyDrop<CssRule>

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 StructuralEq for CssRule

impl StructuralPartialEq for CssRule

impl WasmDescribe for CssRule

fn describe()