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#![allow(non_upper_case_globals)]
#[cfg(feature = "mathml")]
pub use super::mathml::MathMlGlobalAttributes;
use crate::validation::{Attribute, Element};
pub trait GlobalAttributes: Element {
/// Used as a guide for creating a keyboard shortcut that activates or
/// focuses the element.
const access_key: Attribute = Attribute;
/// The autocapitalization behavior to use when the text is edited
/// through non-keyboard methods.
const autocapitalize: Attribute = Attribute;
/// Indicates whether the element should be automatically focused when
/// the page is loaded.
const autofocus: Attribute = Attribute;
/// The class of the element.
const class: Attribute = Attribute;
/// Whether the element is editable.
const contenteditable: Attribute = Attribute;
/// The text directionality of the element.
const dir: Attribute = Attribute;
/// Whether the element is draggable.
const draggable: Attribute = Attribute;
/// A hint as to what the `enter` key should do.
const enterkeyhint: Attribute = Attribute;
/// Whether the element is hidden from view.
const hidden: Attribute = Attribute;
/// A unique identifier for the element.
const id: Attribute = Attribute;
/// Mark an element and its children as inert, disabling interaction.
const inert: Attribute = Attribute;
/// Specifies what kind of input mechanism would be most helpful for
/// users entering content.
const inputmode: Attribute = Attribute;
/// Specify which element this is a custom variant of.
const is: Attribute = Attribute;
/// A global identifier for the item.
const itemid: Attribute = Attribute;
/// A property that the item has.
const itemprop: Attribute = Attribute;
/// A list of additional elements to crawl to find the name-value pairs
/// of the item.
const itemref: Attribute = Attribute;
/// Creates a new item, a group of name-value pairs.
const itemscope: Attribute = Attribute;
/// The item types of the item.
const itemtype: Attribute = Attribute;
/// The language of the element.
const lang: Attribute = Attribute;
/// A cryptographic nonce ("number used once") which can be used by
/// Content Security Policy to determine whether or not a given
/// fetch will be allowed to proceed.
const nonce: Attribute = Attribute;
/// When specified, the element won't be rendered until it becomes
/// shown, at which point it will be rendered on top of other
/// page content.
const popover: Attribute = Attribute;
/// The slot the element is inserted in.
const slot: Attribute = Attribute;
/// Whether the element is spellchecked or not.
const spellcheck: Attribute = Attribute;
/// The CSS styling to apply to the element.
const style: Attribute = Attribute;
/// Customize the index of the element for sequential focus navigation.
const tabindex: Attribute = Attribute;
/// A text description of the element.
const title: Attribute = Attribute;
/// Whether the element is to be translated when the page is localized.
const translate: Attribute = Attribute;
}
/// [ARIA](https://www.w3.org/TR/wai-aria/) attribute namespace.
#[expect(missing_docs, non_upper_case_globals)]
pub mod aria {
use super::Attribute;
/// Marker type for the ARIA namespace.
#[non_exhaustive]
#[derive(Debug, Clone, Copy)]
pub struct Namespace;
pub const activedescendant: Attribute = Attribute;
pub const atomic: Attribute = Attribute;
pub const autocomplete: Attribute = Attribute;
pub const braillelabel: Attribute = Attribute;
pub const brailleroledescription: Attribute = Attribute;
pub const busy: Attribute = Attribute;
pub const checked: Attribute = Attribute;
pub const colcount: Attribute = Attribute;
pub const colindex: Attribute = Attribute;
pub const colindextext: Attribute = Attribute;
pub const colspan: Attribute = Attribute;
pub const controls: Attribute = Attribute;
pub const current: Attribute = Attribute;
pub const describedby: Attribute = Attribute;
pub const description: Attribute = Attribute;
pub const details: Attribute = Attribute;
pub const disabled: Attribute = Attribute;
pub const dropeffect: Attribute = Attribute;
pub const errormessage: Attribute = Attribute;
pub const expanded: Attribute = Attribute;
pub const flowto: Attribute = Attribute;
pub const grabbed: Attribute = Attribute;
pub const haspopup: Attribute = Attribute;
pub const hidden: Attribute = Attribute;
pub const invalid: Attribute = Attribute;
pub const keyshortcuts: Attribute = Attribute;
pub const label: Attribute = Attribute;
pub const labelledby: Attribute = Attribute;
pub const level: Attribute = Attribute;
pub const live: Attribute = Attribute;
pub const modal: Attribute = Attribute;
pub const multiline: Attribute = Attribute;
pub const multiselectable: Attribute = Attribute;
pub const orientation: Attribute = Attribute;
pub const owns: Attribute = Attribute;
pub const placeholder: Attribute = Attribute;
pub const posinset: Attribute = Attribute;
pub const pressed: Attribute = Attribute;
pub const readonly: Attribute = Attribute;
pub const relevant: Attribute = Attribute;
pub const required: Attribute = Attribute;
pub const roledescription: Attribute = Attribute;
pub const rowcount: Attribute = Attribute;
pub const rowindex: Attribute = Attribute;
pub const rowindextext: Attribute = Attribute;
pub const rowspan: Attribute = Attribute;
pub const selected: Attribute = Attribute;
pub const setsize: Attribute = Attribute;
pub const sort: Attribute = Attribute;
pub const valuemax: Attribute = Attribute;
pub const valuemin: Attribute = Attribute;
pub const valuenow: Attribute = Attribute;
pub const valuetext: Attribute = Attribute;
}
/// Trait providing the ARIA namespace for elements.
pub trait AriaAttributes: GlobalAttributes {
/// The ARIA attribute namespace.
const aria: aria::Namespace = aria::Namespace;
/// The role attribute.
const role: Attribute = Attribute;
}
impl<T: GlobalAttributes> AriaAttributes for T {}
/// [Datastar](https://data-star.dev) attribute namespace.
#[expect(missing_docs, non_upper_case_globals)]
pub mod data {
#[non_exhaustive]
#[derive(Debug, Clone, Copy)]
pub struct Namespace;
use crate::validation::Attribute;
/// A known Datastar modifier for an attribute plugin.
///
/// This zero-sized marker is used by `html!` for compile-time validation of
/// unquoted modifier names. Modifier tags and arguments are passed through
/// to Datastar without semantic validation.
#[derive(Debug, Clone, Copy)]
pub struct Modifier;
/// Known Datastar modifiers by attribute plugin.
///
/// In `html!`, modifiers are written in brackets before the value, such as
/// `!on:click[prevent, debounce("250ms", leading)]("$count++")`. This
/// renders Datastar's `__modifier.tag` attribute suffixes. Unquoted modifier
/// names are checked against this table; quoted names, such as `["future"]`,
/// are emitted without known-name validation.
#[allow(missing_docs, non_upper_case_globals)]
pub mod modifiers {
use super::Modifier;
/// Modifiers for `data-attr`.
pub mod attr {}
/// Modifiers for `data-bind`.
pub mod bind {
use super::Modifier;
/// Converts the signal name casing.
///
/// Tags: `camel`, `kebab`, `snake`, or `pascal`.
pub const case: Modifier = Modifier;
/// Defines which events sync the element property back to the
/// signal.
///
/// Tags are event names, for example `event(input, change)`.
pub const event: Modifier = Modifier;
/// Binds to a specific element property instead of the default
/// binding.
///
/// Tags are property names, for example `prop(checked)`.
pub const prop: Modifier = Modifier;
}
/// Modifiers for `data-class`.
pub mod class {
use super::Modifier;
/// Converts the class name casing.
///
/// Tags: `camel`, `kebab`, `snake`, or `pascal`.
pub const case: Modifier = Modifier;
}
/// Modifiers for `data-computed`.
pub mod computed {
use super::Modifier;
/// Converts the computed signal name casing.
///
/// Tags: `camel`, `kebab`, `snake`, or `pascal`.
pub const case: Modifier = Modifier;
}
/// Modifiers for `data-effect`.
pub mod effect {}
/// Modifiers for `data-ignore`.
pub mod ignore {
use super::Modifier;
/// Ignores only the element itself, not its descendants.
///
/// Write this as `self`, for example `!ignore[self]`.
pub const self_: Modifier = Modifier;
}
/// Modifiers for `data-ignore-morph`.
pub mod ignore_morph {}
/// Modifiers for `data-indicator`.
pub mod indicator {
use super::Modifier;
/// Converts the indicator signal name casing.
///
/// Tags: `camel`, `kebab`, `snake`, or `pascal`.
pub const case: Modifier = Modifier;
}
/// Modifiers for `data-init`.
pub mod init {
use super::Modifier;
/// Delays running the expression.
///
/// Tags are durations, for example `delay("500ms")` or
/// `delay("1s")`.
pub const delay: Modifier = Modifier;
/// Wraps the expression in `document.startViewTransition()` when
/// the View Transition API is available.
pub const viewtransition: Modifier = Modifier;
}
/// Modifiers for `data-json-signals`.
pub mod json_signals {
use super::Modifier;
/// Outputs compact JSON without extra whitespace.
pub const terse: Modifier = Modifier;
}
/// Modifiers for `data-on`.
pub mod on {
use super::Modifier;
/// Uses a capture event listener.
pub const capture: Modifier = Modifier;
/// Converts the event name casing.
///
/// Tags: `camel`, `kebab`, `snake`, or `pascal`.
pub const case: Modifier = Modifier;
/// Debounces the event listener.
///
/// Tags include a duration such as `"500ms"` or `"1s"`, followed
/// optionally by `leading` or `notrailing`.
pub const debounce: Modifier = Modifier;
/// Delays the event listener.
///
/// Tags are durations, for example `delay("500ms")` or
/// `delay("1s")`.
pub const delay: Modifier = Modifier;
/// Attaches the event listener to `document`.
pub const document: Modifier = Modifier;
/// Runs the event listener only once.
pub const once: Modifier = Modifier;
/// Triggers when the event occurs outside the element.
pub const outside: Modifier = Modifier;
/// Uses a passive event listener.
pub const passive: Modifier = Modifier;
/// Calls `preventDefault()` before running the expression.
pub const prevent: Modifier = Modifier;
/// Calls `stopPropagation()` before running the expression.
pub const stop: Modifier = Modifier;
/// Throttles the event listener.
///
/// Tags include a duration such as `"500ms"` or `"1s"`, followed
/// optionally by `noleading` or `trailing`.
pub const throttle: Modifier = Modifier;
/// Wraps the expression in `document.startViewTransition()` when
/// the View Transition API is available.
pub const viewtransition: Modifier = Modifier;
/// Attaches the event listener to `window`.
pub const window: Modifier = Modifier;
}
/// Modifiers for `data-on-intersect`.
pub mod on_intersect {
use super::Modifier;
/// Debounces the intersection listener.
///
/// Tags include a duration such as `"500ms"` or `"1s"`, followed
/// optionally by `leading` or `notrailing`.
pub const debounce: Modifier = Modifier;
/// Delays the intersection listener.
///
/// Tags are durations, for example `delay("500ms")` or
/// `delay("1s")`.
pub const delay: Modifier = Modifier;
/// Triggers when the element exits the viewport.
pub const exit: Modifier = Modifier;
/// Triggers when the full element is visible.
pub const full: Modifier = Modifier;
/// Triggers when half of the element is visible.
pub const half: Modifier = Modifier;
/// Runs the expression only once.
pub const once: Modifier = Modifier;
/// Triggers when the element is visible by a percentage threshold.
///
/// Tags are percentages such as `25` or `75`.
pub const threshold: Modifier = Modifier;
/// Throttles the intersection listener.
///
/// Tags include a duration such as `"500ms"` or `"1s"`, followed
/// optionally by `noleading` or `trailing`.
pub const throttle: Modifier = Modifier;
/// Wraps the expression in `document.startViewTransition()` when
/// the View Transition API is available.
pub const viewtransition: Modifier = Modifier;
}
/// Modifiers for `data-on-interval`.
pub mod on_interval {
use super::Modifier;
/// Sets the interval duration.
///
/// Tags include a duration such as `"500ms"` or `"1s"`. Add
/// `leading` to run the first interval immediately, for example
/// `duration("500ms", leading)`.
pub const duration: Modifier = Modifier;
/// Wraps the expression in `document.startViewTransition()` when
/// the View Transition API is available.
pub const viewtransition: Modifier = Modifier;
}
/// Modifiers for `data-on-signal-patch`.
pub mod on_signal_patch {
use super::Modifier;
/// Delays the signal patch listener.
///
/// Tags are durations, for example `delay("500ms")` or
/// `delay("1s")`.
pub const delay: Modifier = Modifier;
/// Debounces the signal patch listener.
///
/// Tags include a duration such as `"500ms"` or `"1s"`, followed
/// optionally by `leading` or `notrailing`.
pub const debounce: Modifier = Modifier;
/// Throttles the signal patch listener.
///
/// Tags include a duration such as `"500ms"` or `"1s"`, followed
/// optionally by `noleading` or `trailing`.
pub const throttle: Modifier = Modifier;
}
/// Modifiers for `data-on-signal-patch-filter`.
pub mod on_signal_patch_filter {}
/// Modifiers for `data-preserve-attr`.
pub mod preserve_attr {}
/// Modifiers for `data-ref`.
pub mod r#ref {
use super::Modifier;
/// Converts the reference signal name casing.
///
/// Tags: `camel`, `kebab`, `snake`, or `pascal`.
pub const case: Modifier = Modifier;
}
/// Modifiers for `data-show`.
pub mod show {}
/// Modifiers for `data-signals`.
pub mod signals {
use super::Modifier;
/// Converts the signal name casing.
///
/// Tags: `camel`, `kebab`, `snake`, or `pascal`.
pub const case: Modifier = Modifier;
/// Only patches signals if their keys do not already exist.
pub const ifmissing: Modifier = Modifier;
}
/// Modifiers for `data-style`.
pub mod style {}
/// Modifiers for `data-text`.
pub mod text {}
}
/// Sets the value of any HTML attribute to an expression, and keeps it in
/// sync.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(foo: String)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_foo } = self.signals();
/// html! {
/// div !attr("title": signal_foo) {}
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
pub const attr: Attribute = Attribute;
/// Creates a signal (if one doesn't already exist) and sets up two-way data
/// binding between it and an element's value.
///
/// This means that the value of the element is updated when the signal
/// changes, and the signal value is updated when the value of the element
/// changes.
///
/// The `data-bind` attribute can be placed on any HTML element on which
/// data can be input or choices selected (`input`, `select`,`textarea`
/// elements, and web components). Event listeners are added for `change`
/// and `input` events.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(foo: String)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_foo } = self.signals();
/// html! {
/// input !bind(signal_foo);
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
///
/// The initial value of the signal is set to the value of the element,
/// unless a signal has already been defined.
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(foo: String)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_foo } = self.signals();
/// html! {
/// input !bind(signal_foo) value="bar";
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
///
/// # Predefined Signal Types
///
/// When you predefine a signal, its **type** is preserved during binding.
/// Whenever the element's value changes, the signal value is automatically
/// converted to match the original type.
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(foo: i32)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_foo } = self.signals();
/// html! {
/// div !signals(signal_foo: 0) {
/// select !bind(signal_foo) {
/// option value="10" { "10" }
/// }
/// }
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
///
/// In the same way, you can assign multiple input values to a single signal
/// by predefining it as an **array**.
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # scoped_signal!(signal_foo: Vec<String>);
/// html! {
/// div !signals(signal_foo: Vec::<String>::new()) {
/// input !bind(signal_foo) type="checkbox" value="bar";
/// input !bind(signal_foo) type="checkbox" value="baz";
/// }
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
///
/// # File Uploads
///
/// Input fields of type `file` will automatically encode file contents in
/// base64. This means that a form is not required.
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(files: ())]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_files } = self.signals();
/// html! {
/// input type="file" !bind(signal_files) multiple;
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
///
/// The resulting signal is in the format `{ name: string, contents: string,
/// mime: string }[]`.
pub const bind: Attribute = Attribute;
/// Adds or removes a class to or from an element based on an expression.
///
/// If the expression evaluates to `true`, the class is added to the
/// element; otherwise, it is removed.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(is_hidden: bool)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_is_hidden } = self.signals();
/// html! {
/// div !class({ "{hidden: " (signal_is_hidden) "}" }) {}
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
pub const class: Attribute = Attribute;
/// Creates a signal that is computed based on an expression.
///
/// The computed signal is read-only, and its value is automatically updated
/// when any signals in the expression are updated.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(foo: i32)]
/// # #[signal(bar: i32)]
/// # #[signal(total: i32)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_foo, signal_bar, signal_total } = self.signals();
/// html! {
/// div !computed(signal_total: { (signal_foo) " + " (signal_bar) }) {}
/// div !text(signal_total) {}
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
///
/// Computed signals are useful for memoizing expressions containing other
/// signals. Their values can be used in other expressions.
///
/// > Computed signal expressions must not be used for performing actions
/// > (changing other signals, actions, JavaScript functions, etc.). If you
/// > need to perform an action in response to a signal change, use the
/// > [`data-effect`](#data-effect) attribute.
pub const computed: Attribute = Attribute;
/// Executes an expression on page load and whenever any signals in the
/// expression change.
///
/// This is useful for performing side effects, such as updating other
/// signals, making requests to the backend, or manipulating the DOM.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(foo: i32)]
/// # #[signal(bar: i32)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_foo, signal_bar } = self.signals();
/// html! {
/// div !effect({ (signal_foo) " = " (signal_bar) " + 1" }) {}
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
pub const effect: Attribute = Attribute;
/// Tells Datastar to ignore an element and its descendants.
///
/// Datastar walks the entire DOM and applies plugins to each element it
/// encounters. It's possible to tell Datastar to ignore an element and its
/// descendants by placing a `data-ignore` attribute on it. This can be
/// useful for preventing naming conflicts with third-party libraries, or
/// when you are unable to [escape user
/// input](/reference/security#escape-user-input).
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// html! {
/// div !ignore {
/// div {
/// "Datastar will not process this element."
/// }
/// }
/// };
/// ```
pub const ignore: Attribute = Attribute;
/// Tells the PatchElements watcher to skip processing an element and its
/// children when morphing elements.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// html! {
/// div !ignore_morph {
/// "This element will not be morphed."
/// }
/// };
/// ```
///
/// > To remove the `data-ignore-morph` attribute from an element, simply
/// > patch the element with the `data-ignore-morph` attribute removed.
pub const ignore_morph: Attribute = Attribute;
/// Creates a signal and sets its value to `true` while a fetch request is
/// in flight, otherwise `false`.
///
/// The signal can be used to show a loading indicator.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # scoped_signal!(signal_fetching: bool);
/// html! {
/// button !on:click("@get('/endpoint')") !indicator(signal_fetching) {}
/// div !show(signal_fetching) { "Loading..." }
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
pub const indicator: Attribute = Attribute;
/// Runs an expression when the attribute is initialized.
///
/// This can happen on page load, when an element is patched into the DOM,
/// and any time the attribute is modified (via a backend action or
/// otherwise).
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(count: i32)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_count } = self.signals();
/// html! {
/// div !init({ (signal_count) " = 1" }) {}
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
pub const init: Attribute = Attribute;
/// Sets the text content of an element to a reactive JSON stringified
/// version of signals.
///
/// Useful when troubleshooting an issue.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// html! {
/// pre !json_signals {}
/// };
/// ```
pub const json_signals: Attribute = Attribute;
/// Preserves the value of an attribute when morphing DOM elements.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// html! {
/// details open !preserve_attr("open") {
/// summary { "Title" }
/// "Content"
/// }
/// };
/// ```
pub const preserve_attr: Attribute = Attribute;
/// Creates a new signal that is a reference to the element on which the
/// data attribute is placed.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(foo: ())]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_foo } = self.signals();
/// html! {
/// div !ref(signal_foo) {}
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
pub const r#ref: Attribute = Attribute;
/// Shows or hides an element based on whether an expression evaluates to
/// `true` or `false`.
///
/// For anything with custom requirements, use [`data-class`](#data-class)
/// instead.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(foo: bool)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_foo } = self.signals();
/// html! {
/// div !show(signal_foo) {}
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
pub const show: Attribute = Attribute;
/// Patches (adds, updates or removes) one or more signals into the existing
/// signals.
///
/// Values defined later in the DOM tree override those defined earlier.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(foo: i32)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_foo } = self.signals();
/// html! {
/// div !signals(signal_foo: 1) {}
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
pub const signals: Attribute = Attribute;
/// Sets the value of inline CSS styles on an element based on an
/// expression, and keeps them in sync.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(using_red: bool)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_using_red } = self.signals();
/// html! {
/// div !style("background-color": { (signal_using_red) " ? 'red' : 'blue'" }) {}
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
pub const style: Attribute = Attribute;
/// Binds the text content of an element to an expression.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(foo: i32)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_foo } = self.signals();
/// html! {
/// div !text(signal_foo) {}
/// // or with a complex expression
/// div !text({ "'Value: ' + (" (signal_foo) " * 2)" }) {}
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
pub const text: Attribute = Attribute;
/// Runs an expression when the element intersects with the viewport.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(intersected: bool)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_intersected } = self.signals();
/// html! {
/// div !on_intersect({ (signal_intersected) " = true" }) {}
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
pub const on_intersect: Attribute = Attribute;
/// Runs an expression at a regular interval.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// # #[derive(Cheers)]
/// # #[signal(count: i32)]
/// # struct Example {
/// # #[id]
/// # id: u8,
/// # }
/// # impl Render for Example {
/// # fn render_to(&self, buffer: &mut Buffer<Element>) {
/// # let ExampleSignals { signal_count } = self.signals();
/// html! {
/// div !on_interval({ (signal_count) "++" }) {}
/// }
/// # .render_to(buffer);
/// # }
/// # }
/// # let _ = Example { id: 0 }.render();
/// ```
pub const on_interval: Attribute = Attribute;
/// Runs an expression whenever any signals are patched.
///
/// This is useful for tracking changes, updating computed values, or
/// triggering side effects when data updates.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// html! {
/// div !on_signal_patch("console.log('A signal changed!')") {}
/// };
/// ```
pub const on_signal_patch: Attribute = Attribute;
/// Filters which signals to watch when using the
/// [`data-on-signal-patch`](#data-on-signal-patch) attribute.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// html! {
/// div !on_signal_patch_filter("{include: /^counter$/}") {}
/// };
/// ```
pub const on_signal_patch_filter: Attribute = Attribute;
/// Event listener attribute namespace.
///
/// In addition to the documented events below, custom events can be
/// registered with [`define_events!`](crate::define_events)
/// and then used as `!on:my_custom_event(...)`
pub mod on {
#[derive(Debug, Clone, Copy)]
pub struct Namespace;
use crate::validation::Attribute;
// Standard DOM Events
// Mouse Events
/// Fired when a pointing device button (e.g., a mouse's primary button)
/// is pressed and released on a single element.
pub const click: Attribute = Attribute;
/// Fired when a pointing device button (e.g., a mouse's primary button)
/// is clicked twice on a single element.
pub const dblclick: Attribute = Attribute;
/// Fired when a non-primary pointing device button is clicked (e.g.,
/// middle or right mouse button).
pub const auxclick: Attribute = Attribute;
/// Fired when a pointing device button is pressed on an element.
pub const mousedown: Attribute = Attribute;
/// Fired when a pointing device button is released on an element.
pub const mouseup: Attribute = Attribute;
/// Fired when a pointing device (usually a mouse) is moved while over
/// an element.
pub const mousemove: Attribute = Attribute;
/// Fired when a pointing device is moved onto the element to which the
/// listener is attached or onto one of its children.
pub const mouseover: Attribute = Attribute;
/// Fired when a pointing device (usually a mouse) is moved off the
/// element to which the listener is attached or off one of its
/// children.
pub const mouseout: Attribute = Attribute;
/// Fired when a pointing device (usually a mouse) is moved over the
/// element that has the listener attached.
pub const mouseenter: Attribute = Attribute;
/// Fired when the pointer of a pointing device (usually a mouse) is
/// moved out of an element that has the listener attached to it.
pub const mouseleave: Attribute = Attribute;
/// Fired when the user attempts to open a context menu.
pub const contextmenu: Attribute = Attribute;
// Keyboard Events
/// Fired when a key is pressed.
pub const keydown: Attribute = Attribute;
/// Fired when a key is released.
pub const keyup: Attribute = Attribute;
/// Fired when a key that produces a character value is pressed down.
pub const keypress: Attribute = Attribute;
// Input Events
/// Fired when the value of an input element is about to be modified.
pub const beforeinput: Attribute = Attribute;
/// Fired when an element's value is changed as a direct result of a
/// user action.
pub const input: Attribute = Attribute;
// Composition Events
/// Fired when text composition begins (e.g., via IME).
pub const compositionstart: Attribute = Attribute;
/// Fired when a character is added to a text composition session.
pub const compositionupdate: Attribute = Attribute;
/// Fired when text composition ends.
pub const compositionend: Attribute = Attribute;
// Form Events
/// Fired when a form is submitted.
pub const submit: Attribute = Attribute;
/// Fired when the value of an input element is changed as a direct
/// result of a user action.
pub const change: Attribute = Attribute;
/// Fired after the form data has been constructed.
pub const formdata: Attribute = Attribute;
/// Fired when an element has gained focus.
pub const focus: Attribute = Attribute;
/// Fired when an element has lost focus.
pub const blur: Attribute = Attribute;
/// Fired when an element has gained focus, after focus.
pub const focusin: Attribute = Attribute;
/// Fired when an element has lost focus, after blur.
pub const focusout: Attribute = Attribute;
/// Fired when a submittable element has been checked for validity and
/// doesn't satisfy its constraints.
pub const invalid: Attribute = Attribute;
/// Fired when a form is reset.
pub const reset: Attribute = Attribute;
/// Fired when some text is selected.
pub const select: Attribute = Attribute;
// Drag Events
/// Fired when an element or text selection is being dragged.
pub const drag: Attribute = Attribute;
/// Fired when the user starts dragging an element or text selection.
pub const dragstart: Attribute = Attribute;
/// Fired when a drag operation is being ended (by releasing a mouse
/// button or hitting the escape key).
pub const dragend: Attribute = Attribute;
/// Fired when a dragged element or text selection enters a valid drop
/// target.
pub const dragenter: Attribute = Attribute;
/// Fired when a dragged element or text selection leaves a valid drop
/// target.
pub const dragleave: Attribute = Attribute;
/// Fired when an element or text selection is being dragged over a
/// valid drop target.
pub const dragover: Attribute = Attribute;
/// Fired when an element or text selection is dropped on a valid drop
/// target.
pub const drop: Attribute = Attribute;
// Clipboard Events
/// Fired when the user initiates a copy action through the browser's
/// user interface.
pub const copy: Attribute = Attribute;
/// Fired when the user initiates a cut action through the browser's
/// user interface.
pub const cut: Attribute = Attribute;
/// Fired when the user initiates a paste action through the browser's
/// user interface.
pub const paste: Attribute = Attribute;
// Media Events
/// Fired when the media has enough data to start playing, after the
/// play event, but also when recovering from being stalled.
pub const play: Attribute = Attribute;
/// Fired when a request to pause play is handled and the activity has
/// entered its paused state, most commonly occurring when the media's
/// pause() method is called.
pub const pause: Attribute = Attribute;
/// Fired when playback stops when end of the media is reached or
/// because no further data is available.
pub const ended: Attribute = Attribute;
/// Fired when either the volume or the muted attribute has changed.
pub const volumechange: Attribute = Attribute;
/// Fired when the time indicated by the currentTime attribute has been
/// updated.
pub const timeupdate: Attribute = Attribute;
/// Fired when the user agent can play the media, but estimates that not
/// enough data has been loaded to play the media up to its end without
/// having to stop for further buffering of content.
pub const canplay: Attribute = Attribute;
/// Fired when the user agent can play the media, and estimates that
/// enough data has been loaded to play the media up to its end without
/// having to stop for further buffering of content.
pub const canplaythrough: Attribute = Attribute;
/// Fired when the duration attribute has been updated.
pub const durationchange: Attribute = Attribute;
/// Fired when the media has become empty; for example, when the media
/// has already been loaded (or partially loaded), and the load() method
/// is called to reload it.
pub const emptied: Attribute = Attribute;
/// Fired when the first frame of the media has finished loading.
pub const loadeddata: Attribute = Attribute;
/// Fired when the metadata has been loaded.
pub const loadedmetadata: Attribute = Attribute;
/// Fired when the browser starts looking for media data.
pub const loadstart: Attribute = Attribute;
/// Fired when the media begins to play (either for the first time,
/// after having been paused, or after ending and then restarting).
pub const playing: Attribute = Attribute;
/// Fired periodically as the browser loads a resource.
pub const progress: Attribute = Attribute;
/// Fired when the playback rate has changed.
pub const ratechange: Attribute = Attribute;
/// Fired when a seek operation completes.
pub const seeked: Attribute = Attribute; // typos: ignore
/// Fired when a seek operation begins.
pub const seeking: Attribute = Attribute;
/// Fired when the user agent is trying to fetch media data, but data is
/// unexpectedly not forthcoming.
pub const stalled: Attribute = Attribute;
/// Fired when media data loading has been suspended.
pub const suspend: Attribute = Attribute;
/// Fired when playback has stopped because of a temporary lack of data.
pub const waiting: Attribute = Attribute;
// Touch Events
/// Fired when one or more touch points are placed on the touch surface.
pub const touchstart: Attribute = Attribute;
/// Fired when one or more touch points are moved along the touch
/// surface.
pub const touchmove: Attribute = Attribute;
/// Fired when one or more touch points are removed from the touch
/// surface.
pub const touchend: Attribute = Attribute;
/// Fired when one or more touch points have been disrupted in an
/// implementation-specific manner.
pub const touchcancel: Attribute = Attribute;
// Pointer Events
/// Fired when a pointer becomes active.
pub const pointerdown: Attribute = Attribute;
/// Fired when a pointer is no longer active.
pub const pointerup: Attribute = Attribute;
/// Fired when a pointer changes coordinates.
pub const pointermove: Attribute = Attribute;
/// Fired when a pointer is moved into an element's hit test boundaries.
pub const pointerover: Attribute = Attribute;
/// Fired when a pointer is moved out of the hit test boundaries of an
/// element.
pub const pointerout: Attribute = Attribute;
/// Fired when a pointer is moved into the hit test boundaries of an
/// element or one of its descendants.
pub const pointerenter: Attribute = Attribute;
/// Fired when a pointer is moved out of the hit test boundaries of an
/// element.
pub const pointerleave: Attribute = Attribute;
/// Fired when a pointer event is canceled.
pub const pointercancel: Attribute = Attribute;
/// Fired when an element captures a pointer using setPointerCapture().
pub const gotpointercapture: Attribute = Attribute;
/// Fired when a captured pointer is released.
pub const lostpointercapture: Attribute = Attribute;
// Scroll Events
/// Fired when the document view or an element has been scrolled.
pub const scroll: Attribute = Attribute;
/// Fires when the document view has completed scrolling.
pub const scrollend: Attribute = Attribute;
// Wheel Events
/// Fired when the user rotates a wheel button on a pointing device
/// (typically a mouse).
pub const wheel: Attribute = Attribute;
// Animation Events
/// Fired when an animation starts.
pub const animationstart: Attribute = Attribute;
/// Fired when an animation has completed normally.
pub const animationend: Attribute = Attribute;
/// Fired when an animation iteration has completed.
pub const animationiteration: Attribute = Attribute;
/// Fired when an animation unexpectedly aborts.
pub const animationcancel: Attribute = Attribute;
// Transition Events
/// Fired when a CSS transition has started transitioning.
pub const transitionstart: Attribute = Attribute;
/// Fired when a CSS transition has finished playing.
pub const transitionend: Attribute = Attribute;
/// Fired when a CSS transition is created.
pub const transitionrun: Attribute = Attribute;
/// Fired when a CSS transition has been cancelled.
pub const transitioncancel: Attribute = Attribute;
// Window/Document Events
/// Fired when the whole page has loaded, including all dependent
/// resources such as stylesheets, scripts, iframes, and images.
pub const load: Attribute = Attribute;
/// Fired when the initial HTML document has been completely parsed,
/// without waiting for stylesheets, images, and subframes to finish
/// loading.
pub const DOMContentLoaded: Attribute = Attribute;
/// Fired when the document readyState property changes.
pub const readystatechange: Attribute = Attribute;
/// Fired when the document or a child resource is being unloaded.
pub const unload: Attribute = Attribute;
/// Fired when the window, the document and its resources are about to
/// be unloaded.
pub const beforeunload: Attribute = Attribute;
/// Fired when navigating away from a page.
pub const pagehide: Attribute = Attribute;
/// Fired when a page is shown, including from back-forward cache.
pub const pageshow: Attribute = Attribute;
/// Fired when the document view has been resized.
pub const resize: Attribute = Attribute;
/// Fired when a resource failed to load, or can't be used.
pub const error: Attribute = Attribute;
/// Fired when a resource loading is aborted.
pub const abort: Attribute = Attribute;
// Navigation/History Events
/// Fired when the active history entry changes.
pub const popstate: Attribute = Attribute;
/// Fired when the URL hash fragment changes.
pub const hashchange: Attribute = Attribute;
// Connectivity Events
/// Fired when the browser gains network connection.
pub const online: Attribute = Attribute;
/// Fired when the browser loses network connection.
pub const offline: Attribute = Attribute;
// Messaging Events
/// Fired when a message is received from a postMessage call, Worker, or
/// other messaging source.
pub const message: Attribute = Attribute;
/// Fired when a message cannot be deserialized.
pub const messageerror: Attribute = Attribute;
// Storage Events
/// Fired when localStorage or sessionStorage is modified in another
/// browsing context.
pub const storage: Attribute = Attribute;
// Promise Events
/// Fired when a Promise is rejected and there is no rejection handler.
pub const unhandledrejection: Attribute = Attribute;
/// Fired when a handler is attached to a previously rejected Promise.
pub const rejectionhandled: Attribute = Attribute;
// Print Events
/// Fired before the print dialog is opened.
pub const beforeprint: Attribute = Attribute;
/// Fired after the print dialog is closed.
pub const afterprint: Attribute = Attribute;
// Language Events
/// Fired when the user's preferred languages change.
pub const languagechange: Attribute = Attribute;
// Toggle Events
/// Fired when the open/closed state of a `<details>` element is toggled.
pub const toggle: Attribute = Attribute;
// Popover Events
/// Fired on a popover element just before it is shown or hidden.
pub const beforetoggle: Attribute = Attribute;
// HTML Element Events
/// Fired when the nodes in a `<slot>` element change.
pub const slotchange: Attribute = Attribute;
/// Fired when a `<dialog>` element is canceled (e.g., via ESC key).
pub const cancel: Attribute = Attribute;
/// Fired when a `<dialog>` element is closed.
pub const close: Attribute = Attribute;
// Fullscreen Events
/// Fired when entering or exiting fullscreen mode.
pub const fullscreenchange: Attribute = Attribute;
/// Fired when fullscreen mode cannot be enabled.
pub const fullscreenerror: Attribute = Attribute;
// Page Visibility Events
/// Fired when the page visibility state changes (e.g., tab hidden or
/// shown).
pub const visibilitychange: Attribute = Attribute;
// Security Events
/// Fired when a Content Security Policy is violated.
pub const securitypolicyviolation: Attribute = Attribute;
// Selection Events
/// Fired when the user starts selecting text.
pub const selectstart: Attribute = Attribute;
/// Fired when the text selection in a `<textarea>` or `<input>` element has
/// changed.
pub const selectionchange: Attribute = Attribute;
}
}
pub trait DataAttributes: GlobalAttributes {
const data: data::Namespace = data::Namespace;
}
impl<T: GlobalAttributes> DataAttributes for T {}
/// Attributes for [Open Graph protocol](https://ogp.me/) metadata.
///
/// This trait is implemented only for the
/// [`meta`](crate::validation::elements::meta) element and is intended for
/// tags such as `<meta property="og:title" content="...">`.
///
/// # Examples
///
/// ```
/// # use cheers::prelude::*;
/// let result = html! {
/// head {
/// meta property="og:title" content="Cheers";
/// meta property="og:description" content="Fullstack hypermedia framework";
/// }
/// }
/// .render();
///
/// assert_eq!(
/// result.as_inner(),
/// r#"<head><meta property="og:title" content="Cheers"><meta property="og:description" content="Fullstack hypermedia framework"></head>"#,
/// );
/// ```
///
/// See the Open Graph [Basic Metadata](https://ogp.me/#metadata) section for
/// details and required properties.
pub trait OpenGraphMeta: GlobalAttributes {
/// The Open Graph property key (for example, `og:title` or `og:image`).
///
/// Use this with [`meta`](crate::validation::elements::meta) elements
/// alongside [`content`](crate::validation::elements::meta::content).
const property: Attribute = Attribute;
}
impl OpenGraphMeta for crate::validation::elements::meta {}
#[expect(missing_docs)]
pub trait SvgGlobalAttributes: Element {
const id: Attribute = Attribute;
const class: Attribute = Attribute;
const style: Attribute = Attribute;
const tabindex: Attribute = Attribute;
const autofocus: Attribute = Attribute;
const lang: Attribute = Attribute;
const xml: Attribute = Attribute;
const xmlns: Attribute = Attribute;
const required_extensions: Attribute = Attribute;
const system_language: Attribute = Attribute;
const alignment_baseline: Attribute = Attribute;
const baseline_shift: Attribute = Attribute;
const clip: Attribute = Attribute;
const clip_path: Attribute = Attribute;
const clip_rule: Attribute = Attribute;
const color: Attribute = Attribute;
const color_interpolation: Attribute = Attribute;
const color_interpolation_filters: Attribute = Attribute;
const cursor: Attribute = Attribute;
const d: Attribute = Attribute;
const direction: Attribute = Attribute;
const display: Attribute = Attribute;
const dominant_baseline: Attribute = Attribute;
const enable_background: Attribute = Attribute;
const fill: Attribute = Attribute;
const fill_opacity: Attribute = Attribute;
const fill_rule: Attribute = Attribute;
const filter: Attribute = Attribute;
const flood_color: Attribute = Attribute;
const flood_opacity: Attribute = Attribute;
const font_family: Attribute = Attribute;
const font_size: Attribute = Attribute;
const font_size_adjust: Attribute = Attribute;
const font_stretch: Attribute = Attribute;
const font_style: Attribute = Attribute;
const font_variant: Attribute = Attribute;
const font_weight: Attribute = Attribute;
const glyph_orientation_horizontal: Attribute = Attribute;
const glyph_orientation_vertical: Attribute = Attribute;
const image_rendering: Attribute = Attribute;
const kerning: Attribute = Attribute;
const letter_spacing: Attribute = Attribute;
const lighting_color: Attribute = Attribute;
const marker_end: Attribute = Attribute;
const marker_mid: Attribute = Attribute;
const marker_start: Attribute = Attribute;
const mask: Attribute = Attribute;
const opacity: Attribute = Attribute;
const overflow: Attribute = Attribute;
const paint_order: Attribute = Attribute;
const pointer_events: Attribute = Attribute;
const shape_rendering: Attribute = Attribute;
const stop_color: Attribute = Attribute;
const stop_opacity: Attribute = Attribute;
const stroke: Attribute = Attribute;
const stroke_dasharray: Attribute = Attribute;
const stroke_dashoffset: Attribute = Attribute;
const stroke_linecap: Attribute = Attribute;
const stroke_linejoin: Attribute = Attribute;
const stroke_miterlimit: Attribute = Attribute;
const stroke_opacity: Attribute = Attribute;
const stroke_width: Attribute = Attribute;
const text_anchor: Attribute = Attribute;
const text_decoration: Attribute = Attribute;
const text_rendering: Attribute = Attribute;
const transform: Attribute = Attribute;
const transform_origin: Attribute = Attribute;
const unicode_bidi: Attribute = Attribute;
const vector_effect: Attribute = Attribute;
const visibility: Attribute = Attribute;
const word_spacing: Attribute = Attribute;
const writing_mode: Attribute = Attribute;
}