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pub mod vcomp;
pub mod vlist;
pub mod vnode;
pub mod vtag;
pub mod vtext;
use indexmap::set::IndexSet;
use std::collections::HashMap;
use std::fmt;
use stdweb::web::{Element, EventListenerHandle, Node};
pub use self::vcomp::{VChild, VComp};
pub use self::vlist::VList;
pub use self::vnode::VNode;
pub use self::vtag::VTag;
pub use self::vtext::VText;
use crate::html::{Component, Scope};
pub trait Listener<COMP: Component> {
fn kind(&self) -> &'static str;
fn attach(&mut self, element: &Element, scope: Scope<COMP>) -> EventListenerHandle;
}
impl<COMP: Component> fmt::Debug for dyn Listener<COMP> {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
write!(f, "Listener {{ kind: {} }}", self.kind())
}
}
type Listeners<COMP> = Vec<Box<dyn Listener<COMP>>>;
type Attributes = HashMap<String, String>;
#[derive(Debug, Clone, Default, PartialEq)]
pub struct Classes {
set: IndexSet<String>,
}
impl Classes {
pub fn new() -> Self {
Self {
set: IndexSet::new(),
}
}
pub fn push(&mut self, class: &str) {
self.set.insert(class.into());
}
pub fn contains(&self, class: &str) -> bool {
self.set.contains(class)
}
pub fn extend<T: Into<Classes>>(mut self, other: T) -> Self {
self.set.extend(other.into().set.into_iter());
self
}
}
impl ToString for Classes {
fn to_string(&self) -> String {
let mut buf = String::new();
for class in &self.set {
buf.push_str(class);
buf.push(' ');
}
buf.pop();
buf
}
}
impl From<&str> for Classes {
fn from(t: &str) -> Self {
let set = t.split_whitespace().map(String::from).collect();
Self { set }
}
}
impl From<String> for Classes {
fn from(t: String) -> Self {
let set = t.split_whitespace().map(String::from).collect();
Self { set }
}
}
impl From<&String> for Classes {
fn from(t: &String) -> Self {
let set = t.split_whitespace().map(String::from).collect();
Self { set }
}
}
impl<T: AsRef<str>> From<Vec<T>> for Classes {
fn from(t: Vec<T>) -> Self {
let set = t.iter().map(|x| x.as_ref().to_string()).collect();
Self { set }
}
}
enum Patch<ID, T> {
Add(ID, T),
Replace(ID, T),
Remove(ID),
}
enum Reform {
Keep,
Before(Option<Node>),
}
pub trait VDiff {
type Component: Component;
fn detach(&mut self, parent: &Element) -> Option<Node>;
fn apply(
&mut self,
parent: &Element,
previous_sibling: Option<&Node>,
ancestor: Option<VNode<Self::Component>>,
scope: &Scope<Self::Component>,
) -> Option<Node>;
}