Evan Almloff
d8026f8824
* fix autofill events * ignore the wrong type of event like we do in desktop * check the event type before dispatch instead of panicing on downcast * clean up conversion * remove example * pull out shared event list * pull in deserialize_raw * unified event list * prettier comment * restore test * restore alias * normal doc comments * move over comments * minimize diff * remove alias, was moved into the macro
97 lines
2.4 KiB
Rust
97 lines
2.4 KiB
Rust
use dioxus_core::Event;
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pub type ImageEvent = Event<ImageData>;
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pub struct ImageData {
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inner: Box<dyn HasImageData>,
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}
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impl<E: HasImageData> From<E> for ImageData {
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fn from(e: E) -> Self {
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Self { inner: Box::new(e) }
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}
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}
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impl std::fmt::Debug for ImageData {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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f.debug_struct("ImageData")
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.field("load_error", &self.load_error())
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.finish()
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}
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}
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impl PartialEq for ImageData {
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fn eq(&self, other: &Self) -> bool {
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self.load_error() == other.load_error()
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}
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}
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impl ImageData {
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/// Create a new ImageData
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pub fn new(e: impl HasImageData) -> Self {
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Self { inner: Box::new(e) }
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}
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/// If the renderer encountered an error while loading the image
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pub fn load_error(&self) -> bool {
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self.inner.load_error()
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}
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pub fn downcast<T: 'static>(&self) -> Option<&T> {
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self.inner.as_any().downcast_ref::<T>()
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}
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}
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#[cfg(feature = "serialize")]
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/// A serialized version of ImageData
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#[derive(serde::Serialize, serde::Deserialize, Debug, PartialEq, Clone)]
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pub struct SerializedImageData {
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#[cfg_attr(feature = "serialize", serde(default))]
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load_error: bool,
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}
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#[cfg(feature = "serialize")]
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impl From<&ImageData> for SerializedImageData {
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fn from(data: &ImageData) -> Self {
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Self {
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load_error: data.load_error(),
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}
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}
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}
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#[cfg(feature = "serialize")]
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impl HasImageData for SerializedImageData {
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fn as_any(&self) -> &dyn std::any::Any {
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self
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}
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fn load_error(&self) -> bool {
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self.load_error
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}
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}
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#[cfg(feature = "serialize")]
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impl serde::Serialize for ImageData {
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fn serialize<S: serde::Serializer>(&self, serializer: S) -> Result<S::Ok, S::Error> {
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SerializedImageData::from(self).serialize(serializer)
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}
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}
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#[cfg(feature = "serialize")]
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impl<'de> serde::Deserialize<'de> for ImageData {
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fn deserialize<D: serde::Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error> {
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let data = SerializedImageData::deserialize(deserializer)?;
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Ok(Self {
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inner: Box::new(data),
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})
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}
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}
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/// A trait for any object that has the data for an image event
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pub trait HasImageData: std::any::Any {
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/// If the renderer encountered an error while loading the image
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fn load_error(&self) -> bool;
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/// return self as Any
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fn as_any(&self) -> &dyn std::any::Any;
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}
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