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Allow setting JsValue as properties (#3458)

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* Allow setting JsValue as properties

* fix tests & CI

* Rc::new

* Workaround for Rust <1.72

* more Rc::new

* ci green?
This commit is contained in:
Muhammad Hamza 2023-10-28 22:24:34 +05:00 committed by GitHub
parent 40ed8a205d
commit d790e1beab
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GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 145 additions and 93 deletions
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47
packages/yew-macro/src/html_tree/html_element.rs
View File

@ -218,27 +218,35 @@ impl ToTokens for HtmlElement {
}
});
fn apply_as(directive: Option<&PropDirective>) -> TokenStream {
match directive {
Some(PropDirective::ApplyAsProperty(token)) => {
quote_spanned!(token.span()=> ::yew::virtual_dom::ApplyAttributeAs::Property)
}
None => quote!(::yew::virtual_dom::ApplyAttributeAs::Attribute),
}
}
/// Try to turn attribute list into a `::yew::virtual_dom::Attributes::Static`
fn try_into_static(
src: &[(LitStr, Value, Option<PropDirective>)],
) -> Option<TokenStream> {
if src
.iter()
.any(|(_, _, d)| matches!(d, Some(PropDirective::ApplyAsProperty(_))))
{
// don't try to make a static attribute list if there are any properties to
// assign
return None;
}
let mut kv = Vec::with_capacity(src.len());
for (k, v, directive) in src.iter() {
let v = match v {
Value::Static(v) => quote! { #v },
Value::Dynamic(_) => return None,
};
let apply_as = apply_as(directive.as_ref());
kv.push(quote! { ( #k, #v, #apply_as ) });
let v = match directive {
Some(PropDirective::ApplyAsProperty(token)) => {
quote_spanned!(token.span()=> ::yew::virtual_dom::AttributeOrProperty::Property(
::std::convert::Into::into(#v)
))
}
None => quote!(::yew::virtual_dom::AttributeOrProperty::Static(
#v
)),
};
kv.push(quote! { ( #k, #v) });
}
Some(quote! { ::yew::virtual_dom::Attributes::Static(&[#(#kv),*]) })
@ -251,9 +259,22 @@ impl ToTokens for HtmlElement {
try_into_static(&attrs).unwrap_or_else(|| {
let keys = attrs.iter().map(|(k, ..)| quote! { #k });
let values = attrs.iter().map(|(_, v, directive)| {
let apply_as = apply_as(directive.as_ref());
let value = match directive {
Some(PropDirective::ApplyAsProperty(token)) => {
quote_spanned!(token.span()=> ::std::option::Option::Some(
::yew::virtual_dom::AttributeOrProperty::Property(
::std::convert::Into::into(#v)
))
)
}
None => {
let value = wrap_attr_value(v);
quote! { ::std::option::Option::map(#value, |it| (it, #apply_as)) }
quote! {
::std::option::Option::map(#value, ::yew::virtual_dom::AttributeOrProperty::Attribute)
}
},
};
quote! { #value }
});
quote! {
::yew::virtual_dom::Attributes::Dynamic{

108
packages/yew/src/dom_bundle/btag/attributes.rs
View File

@ -9,7 +9,7 @@ use yew::AttrValue;
use super::Apply;
use crate::dom_bundle::BSubtree;
use crate::virtual_dom::vtag::{InputFields, Value};
use crate::virtual_dom::{ApplyAttributeAs, Attributes};
use crate::virtual_dom::{AttributeOrProperty, Attributes};
impl<T: AccessValue> Apply for Value<T> {
type Bundle = Self;
@ -92,23 +92,23 @@ impl Attributes {
#[cold]
fn apply_diff_index_maps(
el: &Element,
new: &IndexMap<AttrValue, (AttrValue, ApplyAttributeAs)>,
old: &IndexMap<AttrValue, (AttrValue, ApplyAttributeAs)>,
new: &IndexMap<AttrValue, AttributeOrProperty>,
old: &IndexMap<AttrValue, AttributeOrProperty>,
) {
for (key, value) in new.iter() {
match old.get(key) {
Some(old_value) => {
if value != old_value {
Self::set(el, key, value.0.as_ref(), value.1);
Self::set(el, key, value);
}
}
None => Self::set(el, key, value.0.as_ref(), value.1),
None => Self::set(el, key, value),
}
}
for (key, (_, apply_as)) in old.iter() {
for (key, value) in old.iter() {
if !new.contains_key(key) {
Self::remove(el, key, *apply_as);
Self::remove(el, key, value);
}
}
}
@ -117,26 +117,17 @@ impl Attributes {
/// Works with any [Attributes] variants.
#[cold]
fn apply_diff_as_maps<'a>(el: &Element, new: &'a Self, old: &'a Self) {
fn collect(src: &Attributes) -> HashMap<&str, (&str, ApplyAttributeAs)> {
fn collect(src: &Attributes) -> HashMap<&str, &AttributeOrProperty> {
use Attributes::*;
match src {
Static(arr) => (*arr)
.iter()
.map(|(k, v, apply_as)| (*k, (*v, *apply_as)))
.collect(),
Static(arr) => (*arr).iter().map(|(k, v)| (*k, v)).collect(),
Dynamic { keys, values } => keys
.iter()
.zip(values.iter())
.filter_map(|(k, v)| {
v.as_ref()
.map(|(v, apply_as)| (*k, (v.as_ref(), *apply_as)))
})
.collect(),
IndexMap(m) => m
.iter()
.map(|(k, (v, apply_as))| (k.as_ref(), (v.as_ref(), *apply_as)))
.filter_map(|(k, v)| v.as_ref().map(|v| (*k, v)))
.collect(),
IndexMap(m) => m.iter().map(|(k, v)| (k.as_ref(), v)).collect(),
}
}
@ -149,37 +140,39 @@ impl Attributes {
Some(old) => old != new,
None => true,
} {
Self::set(el, k, new.0, new.1);
Self::set(el, k, new);
}
}
// Remove missing
for (k, (_, apply_as)) in old.iter() {
for (k, old_value) in old.iter() {
if !new.contains_key(k) {
Self::remove(el, k, *apply_as);
Self::remove(el, k, old_value);
}
}
}
fn set(el: &Element, key: &str, value: &str, apply_as: ApplyAttributeAs) {
match apply_as {
ApplyAttributeAs::Attribute => el
fn set(el: &Element, key: &str, value: &AttributeOrProperty) {
match value {
AttributeOrProperty::Attribute(value) => el
.set_attribute(intern(key), value)
.expect("invalid attribute key"),
ApplyAttributeAs::Property => {
AttributeOrProperty::Static(value) => el
.set_attribute(intern(key), value)
.expect("invalid attribute key"),
AttributeOrProperty::Property(value) => {
let key = JsValue::from_str(key);
let value = JsValue::from_str(value);
js_sys::Reflect::set(el.as_ref(), &key, &value).expect("could not set property");
js_sys::Reflect::set(el.as_ref(), &key, value).expect("could not set property");
}
}
}
fn remove(el: &Element, key: &str, apply_as: ApplyAttributeAs) {
match apply_as {
ApplyAttributeAs::Attribute => el
fn remove(el: &Element, key: &str, old_value: &AttributeOrProperty) {
match old_value {
AttributeOrProperty::Attribute(_) | AttributeOrProperty::Static(_) => el
.remove_attribute(intern(key))
.expect("could not remove attribute"),
ApplyAttributeAs::Property => {
AttributeOrProperty::Property(_) => {
let key = JsValue::from_str(key);
js_sys::Reflect::set(el.as_ref(), &key, &JsValue::UNDEFINED)
.expect("could not remove property");
@ -195,20 +188,20 @@ impl Apply for Attributes {
fn apply(self, _root: &BSubtree, el: &Element) -> Self {
match &self {
Self::Static(arr) => {
for (k, v, apply_as) in arr.iter() {
Self::set(el, k, v, *apply_as);
for (k, v) in arr.iter() {
Self::set(el, k, v);
}
}
Self::Dynamic { keys, values } => {
for (k, v) in keys.iter().zip(values.iter()) {
if let Some((v, apply_as)) = v {
Self::set(el, k, v, *apply_as)
if let Some(v) = v {
Self::set(el, k, v)
}
}
}
Self::IndexMap(m) => {
for (k, (v, apply_as)) in m.iter() {
Self::set(el, k, v, *apply_as)
for (k, v) in m.iter() {
Self::set(el, k, v)
}
}
}
@ -248,7 +241,7 @@ impl Apply for Attributes {
}
macro_rules! set {
($new:expr) => {
Self::set(el, key!(), $new.0.as_ref(), $new.1)
Self::set(el, key!(), $new)
};
}
@ -260,7 +253,7 @@ impl Apply for Attributes {
}
(Some(new), None) => set!(new),
(None, Some(old)) => {
Self::remove(el, key!(), old.1);
Self::remove(el, key!(), old);
}
(None, None) => (),
}
@ -282,6 +275,7 @@ impl Apply for Attributes {
#[cfg(target_arch = "wasm32")]
#[cfg(test)]
mod tests {
use std::rc::Rc;
use std::time::Duration;
use gloo::utils::document;
@ -303,10 +297,11 @@ mod tests {
#[test]
fn properties_are_set() {
let attrs = Attributes::Static(&[
("href", "https://example.com/", ApplyAttributeAs::Property),
("alt", "somewhere", ApplyAttributeAs::Property),
]);
let attrs = indexmap::indexmap! {
AttrValue::Static("href") => AttributeOrProperty::Property(JsValue::from_str("https://example.com/")),
AttrValue::Static("alt") => AttributeOrProperty::Property(JsValue::from_str("somewhere")),
};
let attrs = Attributes::IndexMap(Rc::new(attrs));
let (element, btree) = create_element();
attrs.apply(&btree, &element);
assert_eq!(
@ -329,10 +324,11 @@ mod tests {
#[test]
fn respects_apply_as() {
let attrs = Attributes::Static(&[
("href", "https://example.com/", ApplyAttributeAs::Attribute),
("alt", "somewhere", ApplyAttributeAs::Property),
]);
let attrs = indexmap::indexmap! {
AttrValue::Static("href") => AttributeOrProperty::Attribute(AttrValue::from("https://example.com/")),
AttrValue::Static("alt") => AttributeOrProperty::Property(JsValue::from_str("somewhere")),
};
let attrs = Attributes::IndexMap(Rc::new(attrs));
let (element, btree) = create_element();
attrs.apply(&btree, &element);
assert_eq!(
@ -352,7 +348,7 @@ mod tests {
#[test]
fn class_is_always_attrs() {
let attrs = Attributes::Static(&[("class", "thing", ApplyAttributeAs::Attribute)]);
let attrs = Attributes::Static(&[("class", AttributeOrProperty::Static("thing"))]);
let (element, btree) = create_element();
attrs.apply(&btree, &element);
@ -363,10 +359,10 @@ mod tests {
async fn macro_syntax_works() {
#[function_component]
fn Comp() -> Html {
html! { <a href="https://example.com/" ~alt="abc" /> }
html! { <a href="https://example.com/" ~alt={"abc"} ~data-bool={JsValue::from_bool(true)} /> }
}
let output = gloo::utils::document().get_element_by_id("output").unwrap();
let output = document().get_element_by_id("output").unwrap();
yew::Renderer::<Comp>::with_root(output.clone()).render();
gloo::timers::future::sleep(Duration::from_secs(1)).await;
@ -384,5 +380,13 @@ mod tests {
"abc",
"property `alt` not set properly"
);
assert!(
Reflect::get(element.as_ref(), &JsValue::from_str("data-bool"))
.expect("no alt")
.as_bool()
.expect("not a bool"),
"property `alt` not set properly"
);
}
}

70
packages/yew/src/virtual_dom/mod.rs
View File

@ -25,6 +25,7 @@ use std::hint::unreachable_unchecked;
use std::rc::Rc;
use indexmap::IndexMap;
use wasm_bindgen::JsValue;
#[doc(inline)]
pub use self::key::Key;
@ -172,22 +173,29 @@ mod feat_ssr {
}
}
/// Defines if the [`Attributes`] is set as element's attribute or property
/// Defines if the [`Attributes`] is set as element's attribute or property and its value.
#[allow(missing_docs)]
#[derive(PartialEq, Eq, Copy, Clone, Debug)]
pub enum ApplyAttributeAs {
Attribute,
Property,
#[derive(PartialEq, Clone, Debug)]
pub enum AttributeOrProperty {
// This exists as a workaround to support Rust <1.72
// Previous versions of Rust did not See
// `AttributeOrProperty::Attribute(AttrValue::Static(_))` as `'static` that html! macro
// used, and thus failed with "temporary value dropped while borrowed"
//
// See: https://github.com/yewstack/yew/pull/3458#discussion_r1350362215
Static(&'static str),
Attribute(AttrValue),
Property(JsValue),
}
/// A collection of attributes for an element
#[derive(PartialEq, Eq, Clone, Debug)]
#[derive(PartialEq, Clone, Debug)]
pub enum Attributes {
/// Static list of attributes.
///
/// Allows optimizing comparison to a simple pointer equality check and reducing allocations,
/// if the attributes do not change on a node.
Static(&'static [(&'static str, &'static str, ApplyAttributeAs)]),
Static(&'static [(&'static str, AttributeOrProperty)]),
/// Static list of attribute keys with possibility to exclude attributes and dynamic attribute
/// values.
@ -200,12 +208,12 @@ pub enum Attributes {
/// Attribute values. Matches [keys](Attributes::Dynamic::keys). Optional attributes are
/// designated by setting [None].
values: Box<[Option<(AttrValue, ApplyAttributeAs)>]>,
values: Box<[Option<AttributeOrProperty>]>,
},
/// IndexMap is used to provide runtime attribute deduplication in cases where the html! macro
/// was not used to guarantee it.
IndexMap(Rc<IndexMap<AttrValue, (AttrValue, ApplyAttributeAs)>>),
IndexMap(Rc<IndexMap<AttrValue, AttributeOrProperty>>),
}
impl Attributes {
@ -216,21 +224,31 @@ impl Attributes {
/// Return iterator over attribute key-value pairs.
/// This function is suboptimal and does not inline well. Avoid on hot paths.
///
/// This function only returns attributes
pub fn iter<'a>(&'a self) -> Box<dyn Iterator<Item = (&'a str, &'a str)> + 'a> {
match self {
Self::Static(arr) => Box::new(arr.iter().map(|(k, v, _)| (*k, *v as &'a str))),
Self::Dynamic { keys, values } => Box::new(
keys.iter()
.zip(values.iter())
.filter_map(|(k, v)| v.as_ref().map(|(v, _)| (*k, v.as_ref()))),
),
Self::IndexMap(m) => Box::new(m.iter().map(|(k, (v, _))| (k.as_ref(), v.as_ref()))),
Self::Static(arr) => Box::new(arr.iter().filter_map(|(k, v)| match v {
AttributeOrProperty::Attribute(v) => Some((*k, v.as_ref())),
AttributeOrProperty::Property(_) => None,
AttributeOrProperty::Static(v) => Some((*k, v)),
})),
Self::Dynamic { keys, values } => {
Box::new(keys.iter().zip(values.iter()).filter_map(|(k, v)| match v {
Some(AttributeOrProperty::Attribute(v)) => Some((*k, v.as_ref())),
_ => None,
}))
}
Self::IndexMap(m) => Box::new(m.iter().filter_map(|(k, v)| match v {
AttributeOrProperty::Attribute(v) => Some((k.as_ref(), v.as_ref())),
_ => None,
})),
}
}
/// Get a mutable reference to the underlying `IndexMap`.
/// If the attributes are stored in the `Vec` variant, it will be converted.
pub fn get_mut_index_map(&mut self) -> &mut IndexMap<AttrValue, (AttrValue, ApplyAttributeAs)> {
pub fn get_mut_index_map(&mut self) -> &mut IndexMap<AttrValue, AttributeOrProperty> {
macro_rules! unpack {
() => {
match self {
@ -245,9 +263,7 @@ impl Attributes {
Self::IndexMap(m) => Rc::make_mut(m),
Self::Static(arr) => {
*self = Self::IndexMap(Rc::new(
arr.iter()
.map(|(k, v, ty)| ((*k).into(), ((*v).into(), *ty)))
.collect(),
arr.iter().map(|(k, v)| ((*k).into(), v.clone())).collect(),
));
unpack!()
}
@ -269,7 +285,7 @@ impl From<IndexMap<AttrValue, AttrValue>> for Attributes {
fn from(map: IndexMap<AttrValue, AttrValue>) -> Self {
let v = map
.into_iter()
.map(|(k, v)| (k, (v, ApplyAttributeAs::Attribute)))
.map(|(k, v)| (k, AttributeOrProperty::Attribute(v)))
.collect();
Self::IndexMap(Rc::new(v))
}
@ -279,7 +295,17 @@ impl From<IndexMap<&'static str, AttrValue>> for Attributes {
fn from(v: IndexMap<&'static str, AttrValue>) -> Self {
let v = v
.into_iter()
.map(|(k, v)| (AttrValue::Static(k), (v, ApplyAttributeAs::Attribute)))
.map(|(k, v)| (AttrValue::Static(k), (AttributeOrProperty::Attribute(v))))
.collect();
Self::IndexMap(Rc::new(v))
}
}
impl From<IndexMap<&'static str, JsValue>> for Attributes {
fn from(v: IndexMap<&'static str, JsValue>) -> Self {
let v = v
.into_iter()
.map(|(k, v)| (AttrValue::Static(k), (AttributeOrProperty::Property(v))))
.collect();
Self::IndexMap(Rc::new(v))
}

11
packages/yew/src/virtual_dom/vtag.rs
View File

@ -6,9 +6,10 @@ use std::mem;
use std::ops::{Deref, DerefMut};
use std::rc::Rc;
use wasm_bindgen::JsValue;
use web_sys::{HtmlInputElement as InputElement, HtmlTextAreaElement as TextAreaElement};
use super::{ApplyAttributeAs, AttrValue, Attributes, Key, Listener, Listeners, VNode};
use super::{AttrValue, AttributeOrProperty, Attributes, Key, Listener, Listeners, VNode};
use crate::html::{ImplicitClone, IntoPropValue, NodeRef};
/// SVG namespace string used for creating svg elements
@ -386,17 +387,17 @@ impl VTag {
pub fn add_attribute(&mut self, key: &'static str, value: impl Into<AttrValue>) {
self.attributes.get_mut_index_map().insert(
AttrValue::Static(key),
(value.into(), ApplyAttributeAs::Attribute),
AttributeOrProperty::Attribute(value.into()),
);
}
/// Set the given key as property on the element
///
/// [`js_sys::Reflect`] is used for setting properties.
pub fn add_property(&mut self, key: &'static str, value: impl Into<AttrValue>) {
pub fn add_property(&mut self, key: &'static str, value: impl Into<JsValue>) {
self.attributes.get_mut_index_map().insert(
AttrValue::Static(key),
(value.into(), ApplyAttributeAs::Property),
AttributeOrProperty::Property(value.into()),
);
}
@ -412,7 +413,7 @@ impl VTag {
pub fn __macro_push_attr(&mut self, key: &'static str, value: impl IntoPropValue<AttrValue>) {
self.attributes.get_mut_index_map().insert(
AttrValue::from(key),
(value.into_prop_value(), ApplyAttributeAs::Property),
AttributeOrProperty::Attribute(value.into_prop_value()),
);
}