106 lines
2.5 KiB
Rust
106 lines
2.5 KiB
Rust
use dioxus_core::Event;
|
|
|
|
pub type ImageEvent = Event<ImageData>;
|
|
pub struct ImageData {
|
|
inner: Box<dyn HasImageData>,
|
|
}
|
|
|
|
impl<E: HasImageData> From<E> for ImageData {
|
|
fn from(e: E) -> Self {
|
|
Self { inner: Box::new(e) }
|
|
}
|
|
}
|
|
|
|
impl std::fmt::Debug for ImageData {
|
|
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
|
f.debug_struct("ImageData")
|
|
.field("load_error", &self.load_error())
|
|
.finish()
|
|
}
|
|
}
|
|
|
|
impl PartialEq for ImageData {
|
|
fn eq(&self, other: &Self) -> bool {
|
|
self.load_error() == other.load_error()
|
|
}
|
|
}
|
|
|
|
impl ImageData {
|
|
/// Create a new ImageData
|
|
pub fn new(e: impl HasImageData) -> Self {
|
|
Self { inner: Box::new(e) }
|
|
}
|
|
|
|
/// If the renderer encountered an error while loading the image
|
|
pub fn load_error(&self) -> bool {
|
|
self.inner.load_error()
|
|
}
|
|
|
|
pub fn downcast<T: 'static>(&self) -> Option<&T> {
|
|
self.inner.as_any().downcast_ref::<T>()
|
|
}
|
|
}
|
|
|
|
#[cfg(feature = "serialize")]
|
|
/// A serialized version of ImageData
|
|
#[derive(serde::Serialize, serde::Deserialize, Debug, PartialEq, Clone)]
|
|
pub struct SerializedImageData {
|
|
load_error: bool,
|
|
}
|
|
|
|
#[cfg(feature = "serialize")]
|
|
impl From<&ImageData> for SerializedImageData {
|
|
fn from(data: &ImageData) -> Self {
|
|
Self {
|
|
load_error: data.load_error(),
|
|
}
|
|
}
|
|
}
|
|
|
|
#[cfg(feature = "serialize")]
|
|
impl HasImageData for SerializedImageData {
|
|
fn as_any(&self) -> &dyn std::any::Any {
|
|
self
|
|
}
|
|
|
|
fn load_error(&self) -> bool {
|
|
self.load_error
|
|
}
|
|
}
|
|
|
|
#[cfg(feature = "serialize")]
|
|
impl serde::Serialize for ImageData {
|
|
fn serialize<S: serde::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
|
|
SerializedImageData::from(self).serialize(serializer)
|
|
}
|
|
}
|
|
|
|
#[cfg(feature = "serialize")]
|
|
impl<'de> serde::Deserialize<'de> for ImageData {
|
|
fn deserialize<D: serde::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
|
|
let data = SerializedImageData::deserialize(deserializer)?;
|
|
Ok(Self {
|
|
inner: Box::new(data),
|
|
})
|
|
}
|
|
}
|
|
|
|
/// A trait for any object that has the data for an image event
|
|
pub trait HasImageData: std::any::Any {
|
|
/// If the renderer encountered an error while loading the image
|
|
fn load_error(&self) -> bool;
|
|
|
|
/// return self as Any
|
|
fn as_any(&self) -> &dyn std::any::Any;
|
|
}
|
|
|
|
impl_event! [
|
|
ImageData;
|
|
|
|
/// onerror
|
|
onerror
|
|
|
|
/// onload
|
|
onload
|
|
];
|