euv_core/vdom/
struct.rs

1use crate::*;
2
3/// Represents a CSS style property.
4///
5/// A single key-value pair representing a CSS declaration.
6#[derive(Data, Default, New)]
7pub struct StyleProperty {
8    /// The CSS property name (e.g., "margin", "padding").
9    #[get(pub)]
10    #[set(pub)]
11    name: String,
12    /// The CSS property value.
13    #[get(pub)]
14    #[set(pub)]
15    value: String,
16}
17
18/// A collection of CSS style properties that can be converted to a style string.
19#[derive(Data, New)]
20pub struct Style {
21    /// The list of style properties.
22    #[get(pub)]
23    #[set(pub)]
24    properties: Vec<StyleProperty>,
25}
26
27/// Represents a single attribute on a virtual DOM node.
28///
29/// Combines an attribute name with its corresponding value.
30#[derive(Clone, Data, New)]
31pub struct AttributeEntry {
32    /// The name of the attribute.
33    #[get(pub(crate))]
34    #[set(pub(crate))]
35    pub(crate) name: String,
36    /// The value of the attribute.
37    #[get(pub(crate))]
38    #[set(pub(crate))]
39    pub(crate) value: AttributeValue,
40}
41
42/// Represents a text node in the virtual DOM.
43///
44/// Text nodes may optionally be bound to a reactive signal for automatic updates.
45#[derive(Clone, Data, New)]
46pub struct TextNode {
47    /// The text content.
48    #[get(pub(crate))]
49    #[set(pub(crate))]
50    pub(crate) content: String,
51    /// An optional signal that drives reactive text updates.
52    #[get(pub(crate))]
53    #[set(pub(crate))]
54    pub(crate) signal: Option<Signal<String>>,
55}
56
57/// A closure-based dynamic node that re-renders when its dependency signals change.
58///
59/// Holds a boxed closure that produces a fresh `VirtualNode` on each evaluation.
60/// The renderer subscribes to the closure's signals and patches the DOM automatically.
61/// Contains a `HookContext` that persists hook state (like `use_signal`) across
62/// re-renders, ensuring that signal values are not reset when the render function
63/// is called again.
64#[derive(Data)]
65pub struct DynamicNode {
66    /// The closure that generates the dynamic virtual node tree.
67    #[get(pub)]
68    #[set(pub)]
69    pub(crate) render_fn: Rc<RefCell<dyn FnMut() -> VirtualNode>>,
70    /// Persistent hook context for this dynamic node, storing signal
71    /// state and other hook values across render cycles.
72    ///
73    /// Implements `Copy`; all copies share the same underlying state.
74    #[get(pub, type(copy))]
75    #[set(pub)]
76    pub(crate) hook_context: HookContext,
77}
78
79/// Represents a CSS class with a name and its style declarations.
80///
81/// Created by the `class!` macro and used in `html!` via the `class:` attribute.
82/// When the renderer encounters a `CssClass`, it injects the styles into the
83/// DOM's `<style>` element on first use and applies the class name to the element.
84#[derive(Clone, Data, Default)]
85pub struct CssClass {
86    /// The CSS class name used in the DOM.
87    #[get(pub)]
88    #[set(pub)]
89    name: String,
90    /// The CSS style declarations (e.g., "max-width: 800px; margin: 0 auto;").
91    #[get(pub)]
92    #[set(pub)]
93    style: String,
94}
euv_core/vdom/struct.rs

euv_core/vdom/
struct.rs
