Struct stdweb::web::event::MouseWheelEvent

pub struct MouseWheelEvent(_);

The MouseWheelEvent is fired when a pointing device's wheel button (usually a mousewheel) is rotated over the element that has the listener attached.

(JavaScript docs)

Methods

impl MouseWheelEvent

pub fn delta_x(&self) -> f64

The change in X of the wheel

(Javascript docs)

pub fn delta_y(&self) -> f64

The change in Y of the wheel

(Javascript docs)

pub fn delta_z(&self) -> f64

The change in Z of the wheel

(Javascript docs)

pub fn delta_mode(&self) -> MouseWheelDeltaMode

The unit of measure of change

(JavaScript docs)

Trait Implementations

impl JsSerialize for MouseWheelEvent

impl TryFrom<MouseWheelEvent> for Reference

type Error = Void

The type returned in the event of a conversion error.

fn try_from(value: MouseWheelEvent) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Reference> for MouseWheelEvent

type Error = ConversionError

The type returned in the event of a conversion error.

fn try_from(reference: Reference) -> Result<Self, Self::Error>

Performs the conversion.

impl<'_r> TryFrom<&'_r Reference> for MouseWheelEvent

type Error = ConversionError

The type returned in the event of a conversion error.

fn try_from(reference: &Reference) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<Value> for MouseWheelEvent

type Error = ConversionError

The type returned in the event of a conversion error.

fn try_from(value: Value) -> Result<Self, Self::Error>

Performs the conversion.

impl<'_r> TryFrom<&'_r Value> for MouseWheelEvent

type Error = ConversionError

The type returned in the event of a conversion error.

fn try_from(value: &Value) -> Result<Self, Self::Error>

Performs the conversion.

impl InstanceOf for MouseWheelEvent

fn instance_of(reference: &Reference) -> bool

Checks whenever a given Reference if of type Self.

impl ReferenceType for MouseWheelEvent

unsafe fn from_reference_unchecked(reference: Reference) -> Self

Converts a given reference into a concrete reference-like wrapper. Doesn't do any type checking; highly unsafe to use!

impl IEvent for MouseWheelEvent

fn bubbles(&self) -> bool

Indicates whether this event bubbles upward through the DOM.

fn cancel_bubble(&self) -> bool

A historical alias to Event.stopPropagation().

fn set_cancel_bubble(&self, value: bool)

A historical alias to Event.stopPropagation(). Setting this to true before returning from an event handler will stop propagation of the event.

fn cancelable(&self) -> bool

Indicates whether the event is cancelable.

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

A reference to the currently registered target of this event.

fn default_prevented(&self) -> bool

Indicates whether preventDefault has been called on this event.

fn event_phase(&self) -> EventPhase

Indicates which phase of event flow is currently being evaluated.

fn stop_immediate_propagation(&self)

Prevents any further listeners from being called for this event.

fn stop_propagation(&self)

Stops the propagation of this event to descendants in the DOM.

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

Returns a reference to the target to which this event was originally registered.

fn time_stamp(&self) -> Option<f64>

Returns the time in milliseconds at which this event was created.

fn is_trusted(&self) -> bool

Indicates whether the event was generated by a user action.

fn event_type(&self) -> String

Returns a string containing the type of event. It is set when the event is constructed and is the name commonly used to refer to the specific event.

fn prevent_default(&self)

Cancels the event if it is cancelable, without stopping further propagation of the event.

impl ConcreteEvent for MouseWheelEvent

const EVENT_TYPE: &'static str

A string representing the event type.

impl IUiEvent for MouseWheelEvent

fn detail(&self) -> i32

Provides the current click count for this event, if applicable.

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

Returns the WindowProxy that generated the event.

impl IMouseEvent for MouseWheelEvent

fn alt_key(&self) -> bool

Returns whether the Alt key was down when this event was fired.

fn button(&self) -> MouseButton

Indicates the mouse button that fired this event.

fn buttons(&self) -> MouseButtonsState

Indicates which mouse buttons were down when this event was fired.

fn client_x(&self) -> i32

Returns the X position in the application's client area where this event occured.

fn client_y(&self) -> i32

Returns the Y position in the application's client area where this event occured.

fn offset_x(&self) -> f64

Returns the X position on the target element where this event occured.

fn offset_y(&self) -> f64

Returns the Y position on the target element where this event occured.

fn ctrl_key(&self) -> bool

Indicates whether the Ctrl key was down when this event fired.

fn get_modifier_state(&self, key: ModifierKey) -> bool

Returns the current state of the specified modifier key.

fn meta_key(&self) -> bool

Indicates whether the Meta key was down when this event fired.

fn movement_x(&self) -> i32

Returns the change in X coordinate of the pointer between this event and the previous MouseMove event.

fn movement_y(&self) -> i32

Returns the change in Y coordinate of the pointer between this event and the previous MouseMove event.

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

Returns the ID of the hit region affected by the event.

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

Returns the secondary target of this event, if any.

fn screen_x(&self) -> i32

Returns the X position of the pointer in screen coordinates.

fn screen_y(&self) -> i32

Returns the Y position of the pointer in screen coordinates.

fn shift_key(&self) -> bool

Indicates whether the Shift key was down when this event was fired.

impl AsRef<Reference> for MouseWheelEvent

fn as_ref(&self) -> &Reference

Performs the conversion.

impl From<MouseWheelEvent> for Reference

fn from(value: MouseWheelEvent) -> Self

Performs the conversion.

impl Clone for MouseWheelEvent

fn clone(&self) -> MouseWheelEvent

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for MouseWheelEvent

impl PartialEq<MouseWheelEvent> for MouseWheelEvent

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

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

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

This method tests for !=.

impl Debug for MouseWheelEvent

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

Formats the value using the given formatter.