Struct web_sys::FileReader
source · #[repr(transparent)]pub struct FileReader { /* private fields */ }
Expand description
The FileReader
object
This API requires the following crate features to be activated: FileReader
Implementations§
source§impl FileReader
impl FileReader
sourcepub fn new() -> Result<FileReader, JsValue>
pub fn new() -> Result<FileReader, JsValue>
The new FileReader(..)
constructor, creating a new instance of FileReader
This API requires the following crate features to be activated: FileReader
source§impl FileReader
impl FileReader
source§impl FileReader
impl FileReader
source§impl FileReader
impl FileReader
source§impl FileReader
impl FileReader
source§impl FileReader
impl FileReader
source§impl FileReader
impl FileReader
source§impl FileReader
impl FileReader
sourcepub fn ready_state(&self) -> u16
pub fn ready_state(&self) -> u16
The readyState
getter
This API requires the following crate features to be activated: FileReader
source§impl FileReader
impl FileReader
source§impl FileReader
impl FileReader
sourcepub fn error(&self) -> Option<DomException>
pub fn error(&self) -> Option<DomException>
The error
getter
This API requires the following crate features to be activated: DomException
, FileReader
source§impl FileReader
impl FileReader
sourcepub fn onloadstart(&self) -> Option<Function>
pub fn onloadstart(&self) -> Option<Function>
The onloadstart
getter
This API requires the following crate features to be activated: FileReader
source§impl FileReader
impl FileReader
sourcepub fn set_onloadstart(&self, onloadstart: Option<&Function>)
pub fn set_onloadstart(&self, onloadstart: Option<&Function>)
The onloadstart
setter
This API requires the following crate features to be activated: FileReader
source§impl FileReader
impl FileReader
sourcepub fn onprogress(&self) -> Option<Function>
pub fn onprogress(&self) -> Option<Function>
The onprogress
getter
This API requires the following crate features to be activated: FileReader
source§impl FileReader
impl FileReader
sourcepub fn set_onprogress(&self, onprogress: Option<&Function>)
pub fn set_onprogress(&self, onprogress: Option<&Function>)
The onprogress
setter
This API requires the following crate features to be activated: FileReader
source§impl FileReader
impl FileReader
source§impl FileReader
impl FileReader
sourcepub fn set_onload(&self, onload: Option<&Function>)
pub fn set_onload(&self, onload: Option<&Function>)
The onload
setter
This API requires the following crate features to be activated: FileReader
source§impl FileReader
impl FileReader
source§impl FileReader
impl FileReader
sourcepub fn set_onabort(&self, onabort: Option<&Function>)
pub fn set_onabort(&self, onabort: Option<&Function>)
The onabort
setter
This API requires the following crate features to be activated: FileReader
source§impl FileReader
impl FileReader
source§impl FileReader
impl FileReader
sourcepub fn set_onerror(&self, onerror: Option<&Function>)
pub fn set_onerror(&self, onerror: Option<&Function>)
The onerror
setter
This API requires the following crate features to be activated: FileReader
source§impl FileReader
impl FileReader
source§impl FileReader
impl FileReader
sourcepub fn set_onloadend(&self, onloadend: Option<&Function>)
pub fn set_onloadend(&self, onloadend: Option<&Function>)
The onloadend
setter
This API requires the following crate features to be activated: FileReader
Methods from Deref<Target = EventTarget>§
sourcepub fn add_event_listener_with_event_listener(
&self,
type_: &str,
listener: &EventListener
) -> Result<(), JsValue>
pub fn add_event_listener_with_event_listener(
&self,
type_: &str,
listener: &EventListener
) -> Result<(), JsValue>
The addEventListener()
method
This API requires the following crate features to be activated: EventListener
, EventTarget
sourcepub fn add_event_listener_with_callback_and_add_event_listener_options(
&self,
type_: &str,
listener: &Function,
options: &AddEventListenerOptions
) -> Result<(), JsValue>
pub fn add_event_listener_with_callback_and_add_event_listener_options(
&self,
type_: &str,
listener: &Function,
options: &AddEventListenerOptions
) -> Result<(), JsValue>
The addEventListener()
method
This API requires the following crate features to be activated: AddEventListenerOptions
, EventTarget
sourcepub fn add_event_listener_with_event_listener_and_add_event_listener_options(
&self,
type_: &str,
listener: &EventListener,
options: &AddEventListenerOptions
) -> Result<(), JsValue>
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
This API requires the following crate features to be activated: AddEventListenerOptions
, EventListener
, EventTarget
sourcepub fn add_event_listener_with_event_listener_and_bool(
&self,
type_: &str,
listener: &EventListener,
options: bool
) -> Result<(), JsValue>
pub fn add_event_listener_with_event_listener_and_bool(
&self,
type_: &str,
listener: &EventListener,
options: bool
) -> Result<(), JsValue>
The addEventListener()
method
This API requires the following crate features to be activated: EventListener
, EventTarget
sourcepub 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>
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
This API requires the following crate features to be activated: AddEventListenerOptions
, EventTarget
sourcepub 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>
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
This API requires the following crate features to be activated: AddEventListenerOptions
, EventListener
, EventTarget
sourcepub 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>
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
This API requires the following crate features to be activated: EventListener
, EventTarget
sourcepub fn remove_event_listener_with_event_listener(
&self,
type_: &str,
listener: &EventListener
) -> Result<(), JsValue>
pub fn remove_event_listener_with_event_listener(
&self,
type_: &str,
listener: &EventListener
) -> Result<(), JsValue>
The removeEventListener()
method
This API requires the following crate features to be activated: EventListener
, EventTarget
sourcepub fn remove_event_listener_with_callback_and_event_listener_options(
&self,
type_: &str,
listener: &Function,
options: &EventListenerOptions
) -> Result<(), JsValue>
pub fn remove_event_listener_with_callback_and_event_listener_options(
&self,
type_: &str,
listener: &Function,
options: &EventListenerOptions
) -> Result<(), JsValue>
The removeEventListener()
method
This API requires the following crate features to be activated: EventListenerOptions
, EventTarget
sourcepub fn remove_event_listener_with_event_listener_and_event_listener_options(
&self,
type_: &str,
listener: &EventListener,
options: &EventListenerOptions
) -> Result<(), JsValue>
pub fn remove_event_listener_with_event_listener_and_event_listener_options(
&self,
type_: &str,
listener: &EventListener,
options: &EventListenerOptions
) -> Result<(), JsValue>
The removeEventListener()
method
This API requires the following crate features to be activated: EventListener
, EventListenerOptions
, EventTarget
sourcepub fn remove_event_listener_with_event_listener_and_bool(
&self,
type_: &str,
listener: &EventListener,
options: bool
) -> Result<(), JsValue>
pub fn remove_event_listener_with_event_listener_and_bool(
&self,
type_: &str,
listener: &EventListener,
options: bool
) -> Result<(), JsValue>
The removeEventListener()
method
This API requires the following crate features to be activated: EventListener
, EventTarget
Methods from Deref<Target = Object>§
sourcepub fn has_own_property(&self, property: &JsValue) -> bool
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).
sourcepub fn is_prototype_of(&self, value: &JsValue) -> bool
pub fn is_prototype_of(&self, value: &JsValue) -> bool
The isPrototypeOf()
method checks if an object exists in another
object’s prototype chain.
sourcepub fn property_is_enumerable(&self, property: &JsValue) -> bool
pub fn property_is_enumerable(&self, property: &JsValue) -> bool
The propertyIsEnumerable()
method returns a Boolean indicating
whether the specified property is enumerable.
sourcepub fn to_locale_string(&self) -> JsString
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.
Methods from Deref<Target = JsValue>§
pub const NULL: JsValue = JsValue{ idx: JSIDX_NULL, _marker: marker::PhantomData,}
pub const UNDEFINED: JsValue = JsValue{ idx: JSIDX_UNDEFINED, _marker: marker::PhantomData,}
pub const TRUE: JsValue = JsValue{ idx: JSIDX_TRUE, _marker: marker::PhantomData,}
pub const FALSE: JsValue = JsValue{ idx: JSIDX_FALSE, _marker: marker::PhantomData,}
sourcepub fn as_f64(&self) -> Option<f64>
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
.
sourcepub fn as_string(&self) -> Option<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
.
sourcepub fn as_bool(&self) -> Option<bool>
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
.
sourcepub fn is_undefined(&self) -> bool
pub fn is_undefined(&self) -> bool
Tests whether this JS value is undefined
sourcepub fn is_function(&self) -> bool
pub fn is_function(&self) -> bool
Tests whether the type of this JS value is function
.
Trait Implementations§
source§impl AsRef<EventTarget> for FileReader
impl AsRef<EventTarget> for FileReader
source§fn as_ref(&self) -> &EventTarget
fn as_ref(&self) -> &EventTarget
source§impl AsRef<JsValue> for FileReader
impl AsRef<JsValue> for FileReader
source§impl AsRef<Object> for FileReader
impl AsRef<Object> for FileReader
source§impl Clone for FileReader
impl Clone for FileReader
source§fn clone(&self) -> FileReader
fn clone(&self) -> FileReader
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source
. Read moresource§impl Debug for FileReader
impl Debug for FileReader
source§impl Deref for FileReader
impl Deref for FileReader
§type Target = EventTarget
type Target = EventTarget
source§fn deref(&self) -> &EventTarget
fn deref(&self) -> &EventTarget
source§impl From<FileReader> for EventTarget
impl From<FileReader> for EventTarget
source§fn from(obj: FileReader) -> EventTarget
fn from(obj: FileReader) -> EventTarget
source§impl From<FileReader> for JsValue
impl From<FileReader> for JsValue
source§fn from(obj: FileReader) -> JsValue
fn from(obj: FileReader) -> JsValue
source§impl From<FileReader> for Object
impl From<FileReader> for Object
source§fn from(obj: FileReader) -> Object
fn from(obj: FileReader) -> Object
source§impl From<JsValue> for FileReader
impl From<JsValue> for FileReader
source§fn from(obj: JsValue) -> FileReader
fn from(obj: JsValue) -> FileReader
source§impl FromWasmAbi for FileReader
impl FromWasmAbi for FileReader
source§impl<'a> IntoWasmAbi for &'a FileReader
impl<'a> IntoWasmAbi for &'a FileReader
source§impl IntoWasmAbi for FileReader
impl IntoWasmAbi for FileReader
source§impl JsCast for FileReader
impl JsCast for FileReader
source§fn instanceof(val: &JsValue) -> bool
fn instanceof(val: &JsValue) -> bool
instanceof
check to see whether the JsValue
provided is an instance of this type. Read moresource§fn unchecked_from_js(val: JsValue) -> Self
fn unchecked_from_js(val: JsValue) -> Self
source§fn unchecked_from_js_ref(val: &JsValue) -> &Self
fn unchecked_from_js_ref(val: &JsValue) -> &Self
source§fn is_instance_of<T>(&self) -> boolwhere
T: JsCast,
fn is_instance_of<T>(&self) -> boolwhere
T: JsCast,
T
. Read moresource§fn dyn_into<T>(self) -> Result<T, Self>where
T: JsCast,
fn dyn_into<T>(self) -> Result<T, Self>where
T: JsCast,
T
. Read moresource§fn dyn_ref<T>(&self) -> Option<&T>where
T: JsCast,
fn dyn_ref<T>(&self) -> Option<&T>where
T: JsCast,
T
. Read moresource§fn unchecked_into<T>(self) -> Twhere
T: JsCast,
fn unchecked_into<T>(self) -> Twhere
T: JsCast,
source§impl OptionFromWasmAbi for FileReader
impl OptionFromWasmAbi for FileReader
source§impl<'a> OptionIntoWasmAbi for &'a FileReader
impl<'a> OptionIntoWasmAbi for &'a FileReader
source§impl OptionIntoWasmAbi for FileReader
impl OptionIntoWasmAbi for FileReader
source§impl RefFromWasmAbi for FileReader
impl RefFromWasmAbi for FileReader
§type Abi = <JsValue as RefFromWasmAbi>::Abi
type Abi = <JsValue as RefFromWasmAbi>::Abi
Self
are recovered from.§type Anchor = ManuallyDrop<FileReader>
type Anchor = ManuallyDrop<FileReader>
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. Read moreAuto Trait Implementations§
impl RefUnwindSafe for FileReader
impl !Send for FileReader
impl !Sync for FileReader
impl Unpin for FileReader
impl UnwindSafe for FileReader
Blanket Implementations§
source§impl<T> ReturnWasmAbi for Twhere
T: IntoWasmAbi,
impl<T> ReturnWasmAbi for Twhere
T: IntoWasmAbi,
§type Abi = <T as IntoWasmAbi>::Abi
type Abi = <T as IntoWasmAbi>::Abi
IntoWasmAbi::Abi
source§fn return_abi(self, extra: &mut dyn Stack) -> <T as ReturnWasmAbi>::Abi
fn return_abi(self, extra: &mut dyn Stack) -> <T as ReturnWasmAbi>::Abi
IntoWasmAbi::into_abi
, except that it may throw and never
return in the case of Err
. Read more