Struct web_sys::WheelEvent

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

The WheelEvent class.

MDN Documentation

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

Implementations

impl WheelEvent

pub fn delta_x(&self) -> f64

Getter for the deltaX field of this object.

MDN Documentation

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

impl WheelEvent

pub fn delta_y(&self) -> f64

Getter for the deltaY field of this object.

MDN Documentation

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

impl WheelEvent

pub fn delta_z(&self) -> f64

Getter for the deltaZ field of this object.

MDN Documentation

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

impl WheelEvent

pub fn delta_mode(&self) -> u32

Getter for the deltaMode field of this object.

MDN Documentation

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

impl WheelEvent

pub fn new(type_: &str) -> Result<WheelEvent, JsValue>

The new WheelEvent(..) constructor, creating a new instance of WheelEvent.

MDN Documentation

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

impl WheelEvent

pub fn new_with_event_init_dict(
    type_: &str,
    event_init_dict: &WheelEventInit
) -> Result<WheelEvent, JsValue>

The new WheelEvent(..) constructor, creating a new instance of WheelEvent.

MDN Documentation

This API requires the following crate features to be activated: WheelEvent, WheelEventInit

impl WheelEvent

pub const DOM_DELTA_PIXEL: u32

The WheelEvent.DOM_DELTA_PIXEL const.

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

pub const DOM_DELTA_LINE: u32

The WheelEvent.DOM_DELTA_LINE const.

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

pub const DOM_DELTA_PAGE: u32

The WheelEvent.DOM_DELTA_PAGE const.

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

Methods from Deref<Target = MouseEvent>

pub fn screen_x(&self) -> i32

Getter for the screenX field of this object.

MDN Documentation

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

pub fn screen_y(&self) -> i32

Getter for the screenY field of this object.

MDN Documentation

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

pub fn client_x(&self) -> i32

Getter for the clientX field of this object.

MDN Documentation

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

pub fn client_y(&self) -> i32

Getter for the clientY field of this object.

MDN Documentation

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

pub fn x(&self) -> i32

Getter for the x field of this object.

MDN Documentation

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

pub fn y(&self) -> i32

Getter for the y field of this object.

MDN Documentation

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

pub fn offset_x(&self) -> i32

Getter for the offsetX field of this object.

MDN Documentation

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

pub fn offset_y(&self) -> i32

Getter for the offsetY field of this object.

MDN Documentation

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

pub fn ctrl_key(&self) -> bool

Getter for the ctrlKey field of this object.

MDN Documentation

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

pub fn shift_key(&self) -> bool

Getter for the shiftKey field of this object.

MDN Documentation

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

pub fn alt_key(&self) -> bool

Getter for the altKey field of this object.

MDN Documentation

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

pub fn meta_key(&self) -> bool

Getter for the metaKey field of this object.

MDN Documentation

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

pub fn button(&self) -> i16

Getter for the button field of this object.

MDN Documentation

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

pub fn buttons(&self) -> u16

Getter for the buttons field of this object.

MDN Documentation

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

pub fn related_target(&self) -> Option<EventTarget>

Getter for the relatedTarget field of this object.

MDN Documentation

This API requires the following crate features to be activated: EventTarget, MouseEvent

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

Getter for the region field of this object.

MDN Documentation

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

pub fn movement_x(&self) -> i32

Getter for the movementX field of this object.

MDN Documentation

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

pub fn movement_y(&self) -> i32

Getter for the movementY field of this object.

MDN Documentation

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

pub fn get_modifier_state(&self, key_arg: &str) -> bool

The getModifierState() method.

MDN Documentation

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

pub fn init_mouse_event(&self, type_arg: &str)

The initMouseEvent() method.

MDN Documentation

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

pub fn init_mouse_event_with_can_bubble_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool
)

The initMouseEvent() method.

MDN Documentation

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

pub fn init_mouse_event_with_can_bubble_arg_and_cancelable_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool,
    cancelable_arg: bool
)

The initMouseEvent() method.

MDN Documentation

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

pub fn init_mouse_event_with_can_bubble_arg_and_cancelable_arg_and_view_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool,
    cancelable_arg: bool,
    view_arg: Option<&Window>
)

The initMouseEvent() method.

MDN Documentation

This API requires the following crate features to be activated: MouseEvent, Window

pub fn init_mouse_event_with_can_bubble_arg_and_cancelable_arg_and_view_arg_and_detail_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool,
    cancelable_arg: bool,
    view_arg: Option<&Window>,
    detail_arg: i32
)

The initMouseEvent() method.

MDN Documentation

This API requires the following crate features to be activated: MouseEvent, Window

pub fn init_mouse_event_with_can_bubble_arg_and_cancelable_arg_and_view_arg_and_detail_arg_and_screen_x_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool,
    cancelable_arg: bool,
    view_arg: Option<&Window>,
    detail_arg: i32,
    screen_x_arg: i32
)

The initMouseEvent() method.

MDN Documentation

This API requires the following crate features to be activated: MouseEvent, Window

pub fn init_mouse_event_with_can_bubble_arg_and_cancelable_arg_and_view_arg_and_detail_arg_and_screen_x_arg_and_screen_y_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool,
    cancelable_arg: bool,
    view_arg: Option<&Window>,
    detail_arg: i32,
    screen_x_arg: i32,
    screen_y_arg: i32
)

The initMouseEvent() method.

MDN Documentation

This API requires the following crate features to be activated: MouseEvent, Window

pub fn init_mouse_event_with_can_bubble_arg_and_cancelable_arg_and_view_arg_and_detail_arg_and_screen_x_arg_and_screen_y_arg_and_client_x_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool,
    cancelable_arg: bool,
    view_arg: Option<&Window>,
    detail_arg: i32,
    screen_x_arg: i32,
    screen_y_arg: i32,
    client_x_arg: i32
)

The initMouseEvent() method.

MDN Documentation

This API requires the following crate features to be activated: MouseEvent, Window

pub fn init_mouse_event_with_can_bubble_arg_and_cancelable_arg_and_view_arg_and_detail_arg_and_screen_x_arg_and_screen_y_arg_and_client_x_arg_and_client_y_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool,
    cancelable_arg: bool,
    view_arg: Option<&Window>,
    detail_arg: i32,
    screen_x_arg: i32,
    screen_y_arg: i32,
    client_x_arg: i32,
    client_y_arg: i32
)

The initMouseEvent() method.

MDN Documentation

This API requires the following crate features to be activated: MouseEvent, Window

pub fn init_mouse_event_with_can_bubble_arg_and_cancelable_arg_and_view_arg_and_detail_arg_and_screen_x_arg_and_screen_y_arg_and_client_x_arg_and_client_y_arg_and_ctrl_key_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool,
    cancelable_arg: bool,
    view_arg: Option<&Window>,
    detail_arg: i32,
    screen_x_arg: i32,
    screen_y_arg: i32,
    client_x_arg: i32,
    client_y_arg: i32,
    ctrl_key_arg: bool
)

The initMouseEvent() method.

MDN Documentation

This API requires the following crate features to be activated: MouseEvent, Window

pub fn init_mouse_event_with_can_bubble_arg_and_cancelable_arg_and_view_arg_and_detail_arg_and_screen_x_arg_and_screen_y_arg_and_client_x_arg_and_client_y_arg_and_ctrl_key_arg_and_alt_key_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool,
    cancelable_arg: bool,
    view_arg: Option<&Window>,
    detail_arg: i32,
    screen_x_arg: i32,
    screen_y_arg: i32,
    client_x_arg: i32,
    client_y_arg: i32,
    ctrl_key_arg: bool,
    alt_key_arg: bool
)

The initMouseEvent() method.

MDN Documentation

This API requires the following crate features to be activated: MouseEvent, Window

pub fn init_mouse_event_with_can_bubble_arg_and_cancelable_arg_and_view_arg_and_detail_arg_and_screen_x_arg_and_screen_y_arg_and_client_x_arg_and_client_y_arg_and_ctrl_key_arg_and_alt_key_arg_and_shift_key_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool,
    cancelable_arg: bool,
    view_arg: Option<&Window>,
    detail_arg: i32,
    screen_x_arg: i32,
    screen_y_arg: i32,
    client_x_arg: i32,
    client_y_arg: i32,
    ctrl_key_arg: bool,
    alt_key_arg: bool,
    shift_key_arg: bool
)

The initMouseEvent() method.

MDN Documentation

This API requires the following crate features to be activated: MouseEvent, Window

pub fn init_mouse_event_with_can_bubble_arg_and_cancelable_arg_and_view_arg_and_detail_arg_and_screen_x_arg_and_screen_y_arg_and_client_x_arg_and_client_y_arg_and_ctrl_key_arg_and_alt_key_arg_and_shift_key_arg_and_meta_key_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool,
    cancelable_arg: bool,
    view_arg: Option<&Window>,
    detail_arg: i32,
    screen_x_arg: i32,
    screen_y_arg: i32,
    client_x_arg: i32,
    client_y_arg: i32,
    ctrl_key_arg: bool,
    alt_key_arg: bool,
    shift_key_arg: bool,
    meta_key_arg: bool
)

The initMouseEvent() method.

MDN Documentation

This API requires the following crate features to be activated: MouseEvent, Window

pub fn init_mouse_event_with_can_bubble_arg_and_cancelable_arg_and_view_arg_and_detail_arg_and_screen_x_arg_and_screen_y_arg_and_client_x_arg_and_client_y_arg_and_ctrl_key_arg_and_alt_key_arg_and_shift_key_arg_and_meta_key_arg_and_button_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool,
    cancelable_arg: bool,
    view_arg: Option<&Window>,
    detail_arg: i32,
    screen_x_arg: i32,
    screen_y_arg: i32,
    client_x_arg: i32,
    client_y_arg: i32,
    ctrl_key_arg: bool,
    alt_key_arg: bool,
    shift_key_arg: bool,
    meta_key_arg: bool,
    button_arg: i16
)

The initMouseEvent() method.

MDN Documentation

This API requires the following crate features to be activated: MouseEvent, Window

pub fn init_mouse_event_with_can_bubble_arg_and_cancelable_arg_and_view_arg_and_detail_arg_and_screen_x_arg_and_screen_y_arg_and_client_x_arg_and_client_y_arg_and_ctrl_key_arg_and_alt_key_arg_and_shift_key_arg_and_meta_key_arg_and_button_arg_and_related_target_arg(
    &self,
    type_arg: &str,
    can_bubble_arg: bool,
    cancelable_arg: bool,
    view_arg: Option<&Window>,
    detail_arg: i32,
    screen_x_arg: i32,
    screen_y_arg: i32,
    client_x_arg: i32,
    client_y_arg: i32,
    ctrl_key_arg: bool,
    alt_key_arg: bool,
    shift_key_arg: bool,
    meta_key_arg: bool,
    button_arg: i16,
    related_target_arg: Option<&EventTarget>
)

The initMouseEvent() method.

MDN Documentation

This API requires the following crate features to be activated: EventTarget, MouseEvent, Window

Methods from Deref<Target = UiEvent>

pub fn view(&self) -> Option<Window>

Getter for the view field of this object.

MDN Documentation

This API requires the following crate features to be activated: UiEvent, Window

pub fn detail(&self) -> i32

Getter for the detail field of this object.

MDN Documentation

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

pub fn layer_x(&self) -> i32

Getter for the layerX field of this object.

MDN Documentation

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

pub fn layer_y(&self) -> i32

Getter for the layerY field of this object.

MDN Documentation

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

pub fn page_x(&self) -> i32

Getter for the pageX field of this object.

MDN Documentation

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

pub fn page_y(&self) -> i32

Getter for the pageY field of this object.

MDN Documentation

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

pub fn which(&self) -> u32

Getter for the which field of this object.

MDN Documentation

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

pub fn range_parent(&self) -> Option<Node>

Getter for the rangeParent field of this object.

MDN Documentation

This API requires the following crate features to be activated: Node, UiEvent

pub fn range_offset(&self) -> i32

Getter for the rangeOffset field of this object.

MDN Documentation

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

pub fn init_ui_event(&self, a_type: &str)

The initUIEvent() method.

MDN Documentation

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

pub fn init_ui_event_with_a_can_bubble(&self, a_type: &str, a_can_bubble: bool)

The initUIEvent() method.

MDN Documentation

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

pub fn init_ui_event_with_a_can_bubble_and_a_cancelable(
    &self,
    a_type: &str,
    a_can_bubble: bool,
    a_cancelable: bool
)

The initUIEvent() method.

MDN Documentation

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

pub fn init_ui_event_with_a_can_bubble_and_a_cancelable_and_a_view(
    &self,
    a_type: &str,
    a_can_bubble: bool,
    a_cancelable: bool,
    a_view: Option<&Window>
)

The initUIEvent() method.

MDN Documentation

This API requires the following crate features to be activated: UiEvent, Window

pub fn init_ui_event_with_a_can_bubble_and_a_cancelable_and_a_view_and_a_detail(
    &self,
    a_type: &str,
    a_can_bubble: bool,
    a_cancelable: bool,
    a_view: Option<&Window>,
    a_detail: i32
)

The initUIEvent() method.

MDN Documentation

This API requires the following crate features to be activated: UiEvent, Window

pub const SCROLL_PAGE_UP: i32

pub const SCROLL_PAGE_DOWN: i32

Methods from Deref<Target = Event>

pub fn type_(&self) -> String

Getter for the type field of this object.

MDN Documentation

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

pub fn target(&self) -> Option<EventTarget>

Getter for the target field of this object.

MDN Documentation

This API requires the following crate features to be activated: Event, EventTarget

pub fn current_target(&self) -> Option<EventTarget>

Getter for the currentTarget field of this object.

MDN Documentation

This API requires the following crate features to be activated: Event, EventTarget

pub fn event_phase(&self) -> u16

Getter for the eventPhase field of this object.

MDN Documentation

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

pub fn bubbles(&self) -> bool

Getter for the bubbles field of this object.

MDN Documentation

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

pub fn cancelable(&self) -> bool

Getter for the cancelable field of this object.

MDN Documentation

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

pub fn default_prevented(&self) -> bool

Getter for the defaultPrevented field of this object.

MDN Documentation

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

pub fn composed(&self) -> bool

Getter for the composed field of this object.

MDN Documentation

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

pub fn is_trusted(&self) -> bool

Getter for the isTrusted field of this object.

MDN Documentation

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

pub fn time_stamp(&self) -> f64

Getter for the timeStamp field of this object.

MDN Documentation

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

pub fn cancel_bubble(&self) -> bool

Getter for the cancelBubble field of this object.

MDN Documentation

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

pub fn set_cancel_bubble(&self, value: bool)

Setter for the cancelBubble field of this object.

MDN Documentation

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

pub fn composed_path(&self) -> Array

The composedPath() method.

MDN Documentation

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

pub fn init_event(&self, type_: &str)

The initEvent() method.

MDN Documentation

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

pub fn init_event_with_bubbles(&self, type_: &str, bubbles: bool)

The initEvent() method.

MDN Documentation

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

pub fn init_event_with_bubbles_and_cancelable(
    &self,
    type_: &str,
    bubbles: bool,
    cancelable: bool
)

The initEvent() method.

MDN Documentation

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

pub fn prevent_default(&self)

The preventDefault() method.

MDN Documentation

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

pub fn stop_immediate_propagation(&self)

The stopImmediatePropagation() method.

MDN Documentation

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

pub fn stop_propagation(&self)

The stopPropagation() method.

MDN Documentation

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

pub const NONE: u16

pub const CAPTURING_PHASE: u16

pub const AT_TARGET: u16

pub const BUBBLING_PHASE: u16

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<Event> for WheelEvent

fn as_ref(&self) -> &Event

Performs the conversion.

impl AsRef<JsValue> for WheelEvent

fn as_ref(&self) -> &JsValue

Performs the conversion.

impl AsRef<MouseEvent> for WheelEvent

fn as_ref(&self) -> &MouseEvent

Performs the conversion.

impl AsRef<Object> for WheelEvent

fn as_ref(&self) -> &Object

Performs the conversion.

impl AsRef<UiEvent> for WheelEvent

fn as_ref(&self) -> &UiEvent

Performs the conversion.

impl AsRef<WheelEvent> for WheelEvent

fn as_ref(&self) -> &WheelEvent

Performs the conversion.

impl Clone for WheelEvent

fn clone(&self) -> WheelEvent

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for WheelEvent

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

Formats the value using the given formatter.

impl Deref for WheelEvent

type Target = MouseEvent

The resulting type after dereferencing.

fn deref(&self) -> &MouseEvent

Dereferences the value.

impl Eq for WheelEvent

impl From<JsValue> for WheelEvent

fn from(obj: JsValue) -> WheelEvent

Performs the conversion.

impl From<WheelEvent> for JsValue

fn from(obj: WheelEvent) -> JsValue

Performs the conversion.

impl From<WheelEvent> for MouseEvent

fn from(obj: WheelEvent) -> MouseEvent

Performs the conversion.

impl From<WheelEvent> for UiEvent

fn from(obj: WheelEvent) -> UiEvent

Performs the conversion.

impl From<WheelEvent> for Event

fn from(obj: WheelEvent) -> Event

Performs the conversion.

impl From<WheelEvent> for Object

fn from(obj: WheelEvent) -> Object

Performs the conversion.

impl FromWasmAbi for WheelEvent

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 WheelEvent

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 WheelEvent

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 WheelEvent

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 WheelEvent

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 WheelEvent

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 WheelEvent

fn none() -> Self::Abi

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

impl PartialEq<WheelEvent> for WheelEvent

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

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

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

This method tests for !=.

impl RefFromWasmAbi for WheelEvent

type Abi = <JsValue as RefFromWasmAbi>::Abi

The wasm ABI type references to Self are recovered from.

type Anchor = ManuallyDrop<WheelEvent>

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 WheelEvent

impl StructuralPartialEq for WheelEvent

impl WasmDescribe for WheelEvent

fn describe()