112 lines
2.5 KiB
Rust
112 lines
2.5 KiB
Rust
use std::{collections::HashMap, fmt::Debug};
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use dioxus_core::Event;
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pub type FormEvent = Event<FormData>;
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/* DOMEvent: Send + SyncTarget relatedTarget */
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#[cfg_attr(feature = "serialize", derive(serde::Serialize, serde::Deserialize))]
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#[derive(Clone)]
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pub struct FormData {
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pub value: String,
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pub values: HashMap<String, Vec<String>>,
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#[cfg_attr(
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feature = "serialize",
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serde(
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default,
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skip_serializing,
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deserialize_with = "deserialize_file_engine"
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)
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)]
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pub files: Option<std::sync::Arc<dyn FileEngine>>,
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}
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#[cfg(feature = "serialize")]
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#[derive(serde::Serialize, serde::Deserialize)]
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struct SerializedFileEngine {
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files: HashMap<String, Vec<u8>>,
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}
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#[cfg(feature = "serialize")]
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#[async_trait::async_trait(?Send)]
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impl FileEngine for SerializedFileEngine {
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fn files(&self) -> Vec<String> {
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self.files.keys().cloned().collect()
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}
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async fn read_file(&self, file: &str) -> Option<Vec<u8>> {
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self.files.get(file).cloned()
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}
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async fn read_file_to_string(&self, file: &str) -> Option<String> {
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self.read_file(file)
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.await
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.map(|bytes| String::from_utf8_lossy(&bytes).to_string())
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}
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}
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#[cfg(feature = "serialize")]
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fn deserialize_file_engine<'de, D>(
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deserializer: D,
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) -> Result<Option<std::sync::Arc<dyn FileEngine>>, D::Error>
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where
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D: serde::Deserializer<'de>,
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{
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use serde::Deserialize;
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let Ok(file_engine) = SerializedFileEngine::deserialize(deserializer) else {
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return Ok(None);
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};
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let file_engine = std::sync::Arc::new(file_engine);
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Ok(Some(file_engine))
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}
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impl PartialEq for FormData {
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fn eq(&self, other: &Self) -> bool {
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self.value == other.value && self.values == other.values
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}
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}
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impl Debug for FormData {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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f.debug_struct("FormEvent")
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.field("value", &self.value)
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.field("values", &self.values)
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.finish()
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}
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}
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#[async_trait::async_trait(?Send)]
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pub trait FileEngine {
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// get a list of file names
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fn files(&self) -> Vec<String>;
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// read a file to bytes
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async fn read_file(&self, file: &str) -> Option<Vec<u8>>;
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// read a file to string
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async fn read_file_to_string(&self, file: &str) -> Option<String>;
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}
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impl_event! {
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FormData;
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/// onchange
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onchange
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/// oninput handler
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oninput
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/// oninvalid
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oninvalid
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/// onreset
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onreset
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/// onsubmit
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onsubmit
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}
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