Struct web_sys::MessageEvent

pub struct MessageEvent { /* private fields */ }

The MessageEvent class.

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

Implementations

impl MessageEvent

pub fn data(&self) -> JsValue

Getter for the data field of this object.

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

impl MessageEvent

pub fn origin(&self) -> String

Getter for the origin field of this object.

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

impl MessageEvent

pub fn last_event_id(&self) -> String

Getter for the lastEventId field of this object.

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

impl MessageEvent

pub fn source(&self) -> Option<Object>

Getter for the source field of this object.

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

impl MessageEvent

pub fn ports(&self) -> Array

Getter for the ports field of this object.

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

impl MessageEvent

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

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

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

impl MessageEvent

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

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

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This API requires the following crate features to be activated: MessageEvent, MessageEventInit

impl MessageEvent

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

The initMessageEvent() method.

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

impl MessageEvent

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

The initMessageEvent() method.

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

impl MessageEvent

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

The initMessageEvent() method.

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

impl MessageEvent

pub fn init_message_event_with_bubbles_and_cancelable_and_data( &self, type_: &str, bubbles: bool, cancelable: bool, data: &JsValue, )

The initMessageEvent() method.

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

impl MessageEvent

pub fn init_message_event_with_bubbles_and_cancelable_and_data_and_origin( &self, type_: &str, bubbles: bool, cancelable: bool, data: &JsValue, origin: &str, )

The initMessageEvent() method.

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

impl MessageEvent

pub fn init_message_event_with_bubbles_and_cancelable_and_data_and_origin_and_last_event_id( &self, type_: &str, bubbles: bool, cancelable: bool, data: &JsValue, origin: &str, last_event_id: &str, )

The initMessageEvent() method.

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

impl MessageEvent

pub fn init_message_event_with_bubbles_and_cancelable_and_data_and_origin_and_last_event_id_and_opt_window( &self, type_: &str, bubbles: bool, cancelable: bool, data: &JsValue, origin: &str, last_event_id: &str, source: Option<&Window>, )

The initMessageEvent() method.

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

impl MessageEvent

pub fn init_message_event_with_bubbles_and_cancelable_and_data_and_origin_and_last_event_id_and_opt_message_port( &self, type_: &str, bubbles: bool, cancelable: bool, data: &JsValue, origin: &str, last_event_id: &str, source: Option<&MessagePort>, )

The initMessageEvent() method.

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This API requires the following crate features to be activated: MessageEvent, MessagePort

impl MessageEvent

pub fn init_message_event_with_bubbles_and_cancelable_and_data_and_origin_and_last_event_id_and_opt_service_worker( &self, type_: &str, bubbles: bool, cancelable: bool, data: &JsValue, origin: &str, last_event_id: &str, source: Option<&ServiceWorker>, )

The initMessageEvent() method.

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This API requires the following crate features to be activated: MessageEvent, ServiceWorker

impl MessageEvent

pub fn init_message_event_with_bubbles_and_cancelable_and_data_and_origin_and_last_event_id_and_opt_window_and_ports( &self, type_: &str, bubbles: bool, cancelable: bool, data: &JsValue, origin: &str, last_event_id: &str, source: Option<&Window>, ports: &JsValue, )

The initMessageEvent() method.

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

impl MessageEvent

pub fn init_message_event_with_bubbles_and_cancelable_and_data_and_origin_and_last_event_id_and_opt_message_port_and_ports( &self, type_: &str, bubbles: bool, cancelable: bool, data: &JsValue, origin: &str, last_event_id: &str, source: Option<&MessagePort>, ports: &JsValue, )

The initMessageEvent() method.

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This API requires the following crate features to be activated: MessageEvent, MessagePort

impl MessageEvent

pub fn init_message_event_with_bubbles_and_cancelable_and_data_and_origin_and_last_event_id_and_opt_service_worker_and_ports( &self, type_: &str, bubbles: bool, cancelable: bool, data: &JsValue, origin: &str, last_event_id: &str, source: Option<&ServiceWorker>, ports: &JsValue, )

The initMessageEvent() method.

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This API requires the following crate features to be activated: MessageEvent, ServiceWorker

Methods from Deref<Target = Event>

pub fn type_(&self) -> String

Getter for the type field of this object.

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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.

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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.

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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.

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

pub fn bubbles(&self) -> bool

Getter for the bubbles field of this object.

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

pub fn cancelable(&self) -> bool

Getter for the cancelable field of this object.

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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.

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

pub fn composed(&self) -> bool

Getter for the composed field of this object.

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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.

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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.

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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.

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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.

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

pub fn composed_path(&self) -> Array

The composedPath() method.

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

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

The initEvent() method.

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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.

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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.

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

pub fn prevent_default(&self)

The preventDefault() method.

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

pub fn stop_immediate_propagation(&self)

The stopImmediatePropagation() method.

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

pub fn stop_propagation(&self)

The stopPropagation() method.

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

pub const NONE: u16 = 0u16

pub const CAPTURING_PHASE: u16 = 1u16

pub const AT_TARGET: u16 = 2u16

pub const BUBBLING_PHASE: u16 = 3u16

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.

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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).

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

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

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

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

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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.

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pub fn to_string(&self) -> JsString

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

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pub fn value_of(&self) -> Object

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

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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_array(&self) -> bool

Tests whether this JS value is an instance of Array.

pub fn is_function(&self) -> bool

Tests whether the type of this JS value is function.

pub fn is_bigint(&self) -> bool

Tests whether the type of this JS value is bigint.

pub fn js_typeof(&self) -> JsValue

Applies the unary typeof JS operator on a JsValue.

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pub fn js_in(&self, obj: &JsValue) -> bool

Applies the binary in JS operator on the two JsValues.

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pub fn is_truthy(&self) -> bool

Tests whether the value is “truthy”.

pub fn is_falsy(&self) -> bool

Tests whether the value is “falsy”.

pub fn loose_eq(&self, other: &JsValue) -> bool

Compare two JsValues for equality, using the == operator in JS.

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pub fn bit_not(&self) -> JsValue

Applies the unary ~ JS operator on a JsValue.

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pub fn unsigned_shr(&self, rhs: &JsValue) -> u32

Applies the binary >>> JS operator on the two JsValues.

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pub fn checked_div(&self, rhs: &JsValue) -> JsValue

Applies the binary / JS operator on two JsValues, catching and returning any RangeError thrown.

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pub fn pow(&self, rhs: &JsValue) -> JsValue

Applies the binary ** JS operator on the two JsValues.

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pub fn lt(&self, other: &JsValue) -> bool

Applies the binary < JS operator on the two JsValues.

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pub fn le(&self, other: &JsValue) -> bool

Applies the binary <= JS operator on the two JsValues.

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pub fn ge(&self, other: &JsValue) -> bool

Applies the binary >= JS operator on the two JsValues.

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pub fn gt(&self, other: &JsValue) -> bool

Applies the binary > JS operator on the two JsValues.

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pub fn unchecked_into_f64(&self) -> f64

Applies the unary + JS operator on a JsValue. Can throw.

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Trait Implementations

impl AsRef<Event> for MessageEvent

fn as_ref(&self) -> &Event

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<JsValue> for MessageEvent

fn as_ref(&self) -> &JsValue

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<MessageEvent> for MessageEvent

fn as_ref(&self) -> &MessageEvent

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<Object> for MessageEvent

fn as_ref(&self) -> &Object

Converts this type into a shared reference of the (usually inferred) input type.

impl Clone for MessageEvent

fn clone(&self) -> MessageEvent

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for MessageEvent

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

Formats the value using the given formatter.

impl Deref for MessageEvent

type Target = Event

The resulting type after dereferencing.

fn deref(&self) -> &Event

Dereferences the value.

impl From<JsValue> for MessageEvent

fn from(obj: JsValue) -> MessageEvent

Converts to this type from the input type.

impl From<MessageEvent> for Event

fn from(obj: MessageEvent) -> Event

Converts to this type from the input type.

impl From<MessageEvent> for JsValue

fn from(obj: MessageEvent) -> JsValue

Converts to this type from the input type.

impl From<MessageEvent> for Object

fn from(obj: MessageEvent) -> Object

Converts to this type from the input type.

impl FromWasmAbi for MessageEvent

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<'a> IntoWasmAbi for &'a MessageEvent

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 IntoWasmAbi for MessageEvent

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 JsCast for MessageEvent

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.

fn has_type<T>(&self) -> bool

where T: JsCast,

Test whether this JS value has a type T.

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.

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.

fn unchecked_into<T>(self) -> T

where T: JsCast,

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

fn unchecked_ref<T>(&self) -> &T

where T: JsCast,

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

fn is_instance_of<T>(&self) -> bool

where T: JsCast,

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

fn is_type_of(val: &JsValue) -> bool

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

impl LongRefFromWasmAbi for MessageEvent

type Abi = <JsValue as LongRefFromWasmAbi>::Abi

Same as RefFromWasmAbi::Abi

type Anchor = MessageEvent

Same as RefFromWasmAbi::Anchor

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

Same as RefFromWasmAbi::ref_from_abi

impl OptionFromWasmAbi for MessageEvent

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<'a> OptionIntoWasmAbi for &'a MessageEvent

fn none() -> Self::Abi

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

impl OptionIntoWasmAbi for MessageEvent

fn none() -> Self::Abi

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

impl PartialEq for MessageEvent

fn eq(&self, other: &MessageEvent) -> 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 MessageEvent

type Abi = <JsValue as RefFromWasmAbi>::Abi

The wasm ABI type references to Self are recovered from.

type Anchor = ManuallyDrop<MessageEvent>

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 WasmDescribe for MessageEvent

fn describe()

impl Eq for MessageEvent

impl StructuralPartialEq for MessageEvent