Struct web_sys::FileReader

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

The FileReader class.

MDN Documentation

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

Methods

impl FileReader

pub fn ready_state(&self) -> u16

Getter for the readyState field of this object.

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

impl FileReader

pub fn result(&self) -> Result<JsValue, JsValue>

Getter for the result field of this object.

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

impl FileReader

pub fn error(&self) -> Option<DomException>

Getter for the error field of this object.

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This API requires the following crate features to be activated: DomException, FileReader

impl FileReader

pub fn onloadstart(&self) -> Option<Function>

Getter for the onloadstart field of this object.

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

impl FileReader

pub fn set_onloadstart(&self, value: Option<&Function>)

Setter for the onloadstart field of this object.

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

impl FileReader

pub fn onprogress(&self) -> Option<Function>

Getter for the onprogress field of this object.

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

impl FileReader

pub fn set_onprogress(&self, value: Option<&Function>)

Setter for the onprogress field of this object.

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

impl FileReader

pub fn onload(&self) -> Option<Function>

Getter for the onload field of this object.

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

impl FileReader

pub fn set_onload(&self, value: Option<&Function>)

Setter for the onload field of this object.

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

impl FileReader

pub fn onabort(&self) -> Option<Function>

Getter for the onabort field of this object.

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

impl FileReader

pub fn set_onabort(&self, value: Option<&Function>)

Setter for the onabort field of this object.

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

impl FileReader

pub fn onerror(&self) -> Option<Function>

Getter for the onerror field of this object.

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

impl FileReader

pub fn set_onerror(&self, value: Option<&Function>)

Setter for the onerror field of this object.

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

impl FileReader

pub fn onloadend(&self) -> Option<Function>

Getter for the onloadend field of this object.

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

impl FileReader

pub fn set_onloadend(&self, value: Option<&Function>)

Setter for the onloadend field of this object.

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

impl FileReader

pub fn new() -> Result<FileReader, JsValue>

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

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

impl FileReader

pub fn abort(&self)

The abort() method.

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

impl FileReader

pub fn read_as_array_buffer(&self, blob: &Blob) -> Result<(), JsValue>

The readAsArrayBuffer() method.

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This API requires the following crate features to be activated: Blob, FileReader

impl FileReader

pub fn read_as_binary_string(&self, filedata: &Blob) -> Result<(), JsValue>

The readAsBinaryString() method.

MDN Documentation

This API requires the following crate features to be activated: Blob, FileReader

impl FileReader

pub fn read_as_data_url(&self, blob: &Blob) -> Result<(), JsValue>

The readAsDataURL() method.

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This API requires the following crate features to be activated: Blob, FileReader

impl FileReader

pub fn read_as_text(&self, blob: &Blob) -> Result<(), JsValue>

The readAsText() method.

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This API requires the following crate features to be activated: Blob, FileReader

impl FileReader

pub fn read_as_text_with_label(
    &self,
    blob: &Blob,
    label: &str
) -> Result<(), JsValue>

The readAsText() method.

MDN Documentation

This API requires the following crate features to be activated: Blob, FileReader

impl FileReader

pub const EMPTY: u16

The FileReader.EMPTY const.

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

pub const LOADING: u16

The FileReader.LOADING const.

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

pub const DONE: u16

The FileReader.DONE const.

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

Methods from Deref<Target = EventTarget>

pub fn add_event_listener_with_callback(
    &self,
    type_: &str,
    listener: &Function
) -> Result<(), JsValue>

The addEventListener() method.

MDN Documentation

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

pub fn add_event_listener_with_event_listener(
    &self,
    type_: &str,
    listener: &EventListener
) -> Result<(), JsValue>

The addEventListener() method.

MDN Documentation

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

pub fn add_event_listener_with_callback_and_add_event_listener_options(
    &self,
    type_: &str,
    listener: &Function,
    options: &AddEventListenerOptions
) -> Result<(), JsValue>

The addEventListener() method.

MDN Documentation

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

pub fn add_event_listener_with_event_listener_and_add_event_listener_options(
    &self,
    type_: &str,
    listener: &EventListener,
    options: &AddEventListenerOptions
) -> Result<(), JsValue>

The addEventListener() method.

MDN Documentation

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

pub fn add_event_listener_with_callback_and_bool(
    &self,
    type_: &str,
    listener: &Function,
    options: bool
) -> Result<(), JsValue>

The addEventListener() method.

MDN Documentation

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

pub fn add_event_listener_with_event_listener_and_bool(
    &self,
    type_: &str,
    listener: &EventListener,
    options: bool
) -> Result<(), JsValue>

The addEventListener() method.

MDN Documentation

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

pub fn add_event_listener_with_callback_and_add_event_listener_options_and_wants_untrusted(
    &self,
    type_: &str,
    listener: &Function,
    options: &AddEventListenerOptions,
    wants_untrusted: Option<bool>
) -> Result<(), JsValue>

The addEventListener() method.

MDN Documentation

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

pub fn add_event_listener_with_event_listener_and_add_event_listener_options_and_wants_untrusted(
    &self,
    type_: &str,
    listener: &EventListener,
    options: &AddEventListenerOptions,
    wants_untrusted: Option<bool>
) -> Result<(), JsValue>

The addEventListener() method.

MDN Documentation

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

pub fn add_event_listener_with_callback_and_bool_and_wants_untrusted(
    &self,
    type_: &str,
    listener: &Function,
    options: bool,
    wants_untrusted: Option<bool>
) -> Result<(), JsValue>

The addEventListener() method.

MDN Documentation

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

pub fn add_event_listener_with_event_listener_and_bool_and_wants_untrusted(
    &self,
    type_: &str,
    listener: &EventListener,
    options: bool,
    wants_untrusted: Option<bool>
) -> Result<(), JsValue>

The addEventListener() method.

MDN Documentation

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

pub fn dispatch_event(&self, event: &Event) -> Result<bool, JsValue>

The dispatchEvent() method.

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

pub fn remove_event_listener_with_callback(
    &self,
    type_: &str,
    listener: &Function
) -> Result<(), JsValue>

The removeEventListener() method.

MDN Documentation

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

pub fn remove_event_listener_with_event_listener(
    &self,
    type_: &str,
    listener: &EventListener
) -> Result<(), JsValue>

The removeEventListener() method.

MDN Documentation

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

pub fn remove_event_listener_with_callback_and_event_listener_options(
    &self,
    type_: &str,
    listener: &Function,
    options: &EventListenerOptions
) -> Result<(), JsValue>

The removeEventListener() method.

MDN Documentation

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

pub fn remove_event_listener_with_event_listener_and_event_listener_options(
    &self,
    type_: &str,
    listener: &EventListener,
    options: &EventListenerOptions
) -> Result<(), JsValue>

The removeEventListener() method.

MDN Documentation

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

pub fn remove_event_listener_with_callback_and_bool(
    &self,
    type_: &str,
    listener: &Function,
    options: bool
) -> Result<(), JsValue>

The removeEventListener() method.

MDN Documentation

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

pub fn remove_event_listener_with_event_listener_and_bool(
    &self,
    type_: &str,
    listener: &EventListener,
    options: bool
) -> Result<(), JsValue>

The removeEventListener() method.

MDN Documentation

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

Trait Implementations

impl AsRef<EventTarget> for FileReader

fn as_ref(&self) -> &EventTarget

Performs the conversion.

impl AsRef<FileReader> for FileReader

fn as_ref(&self) -> &FileReader

Performs the conversion.

impl AsRef<JsValue> for FileReader

fn as_ref(&self) -> &JsValue

Performs the conversion.

impl AsRef<Object> for FileReader

fn as_ref(&self) -> &Object

Performs the conversion.

impl Clone for FileReader

fn clone(&self) -> FileReader

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for FileReader

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

Formats the value using the given formatter.

impl Deref for FileReader

type Target = EventTarget

The resulting type after dereferencing.

fn deref(&self) -> &EventTarget

Dereferences the value.

impl Eq for FileReader

impl From<FileReader> for JsValue

fn from(obj: FileReader) -> JsValue

Performs the conversion.

impl From<FileReader> for EventTarget

fn from(obj: FileReader) -> EventTarget

Performs the conversion.

impl From<FileReader> for Object

fn from(obj: FileReader) -> Object

Performs the conversion.

impl From<JsValue> for FileReader

fn from(obj: JsValue) -> FileReader

Performs the conversion.

impl FromWasmAbi for FileReader

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 FileReader

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 FileReader

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 FileReader

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 OptionFromWasmAbi for FileReader

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 FileReader

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 FileReader

fn none() -> Self::Abi

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

impl PartialEq<FileReader> for FileReader

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

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

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

This method tests for !=.

impl RefFromWasmAbi for FileReader

type Abi = <JsValue as RefFromWasmAbi>::Abi

The wasm ABI type references to Self are recovered from.

type Anchor = ManuallyDrop<FileReader>

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 FileReader

impl StructuralPartialEq for FileReader

impl WasmDescribe for FileReader

fn describe()