reconcile/src/wasm/cursor.rs
2025-06-15 11:30:07 +01:00

88 lines
2.3 KiB
Rust

use wasm_bindgen::prelude::*;
/// Wrapper type to expose `TextWithCursors` to JS.
#[wasm_bindgen]
#[derive(Debug, Clone, PartialEq)]
pub struct JsTextWithCursors {
text: String,
cursors: Vec<JsCursorPosition>,
}
#[wasm_bindgen]
impl JsTextWithCursors {
#[wasm_bindgen(constructor)]
#[must_use]
pub fn new(text: String, cursors: Vec<JsCursorPosition>) -> Self { Self { text, cursors } }
#[must_use]
pub fn text(&self) -> String { self.text.clone() }
#[must_use]
pub fn cursors(&self) -> Vec<JsCursorPosition> { self.cursors.clone() }
}
impl From<JsTextWithCursors> for crate::TextWithCursors<'_> {
fn from(owned: JsTextWithCursors) -> Self {
crate::TextWithCursors::new_owned(
owned.text.to_string(),
owned
.cursors
.into_iter()
.map(std::convert::Into::into)
.collect(),
)
}
}
impl From<crate::TextWithCursors<'_>> for JsTextWithCursors {
fn from(text_with_cursors: crate::TextWithCursors<'_>) -> Self {
JsTextWithCursors {
text: text_with_cursors.text.into_owned(),
cursors: text_with_cursors
.cursors
.into_iter()
.map(std::convert::Into::into)
.collect(),
}
}
}
/// Wrapper type to expose `CursorPosition` to JS.
#[wasm_bindgen]
#[derive(Debug, Clone, PartialEq)]
pub struct JsCursorPosition {
id: usize,
char_index: usize,
}
#[wasm_bindgen]
impl JsCursorPosition {
#[wasm_bindgen(constructor)]
#[must_use]
pub fn new(id: usize, char_index: usize) -> Self { Self { id, char_index } }
#[must_use]
pub fn id(&self) -> usize { self.id }
#[wasm_bindgen(js_name = characterPosition)]
#[must_use]
pub fn char_index(&self) -> usize { self.char_index }
}
impl From<JsCursorPosition> for crate::CursorPosition {
fn from(owned: JsCursorPosition) -> Self {
crate::CursorPosition {
id: owned.id,
char_index: owned.char_index,
}
}
}
impl From<crate::CursorPosition> for JsCursorPosition {
fn from(cursor: crate::CursorPosition) -> Self {
JsCursorPosition {
id: cursor.id,
char_index: cursor.char_index,
}
}
}