chore: improve web support (#36)

Reviewed-on: https://git.reya.su/reya/coop/pulls/36

crates/ui/src/input/display_map/mod.rs

@@ -1,61 +1,7 @@
 #[allow(clippy::module_inception)]
 mod display_map;
-mod fold_map;
-#[cfg(not(target_family = "wasm"))]
-mod folding;
-#[cfg(target_family = "wasm")]
-pub mod folding;
 mod text_wrapper;
 mod wrap_map;
 
-// Re-export public API
-// Re-export FoldRange and extract_fold_ranges
-pub use folding::FoldRange;
-
 pub use self::display_map::DisplayMap;
 pub(crate) use self::text_wrapper::LineLayout;
-
-/// Position in the buffer (logical text).
-///
-/// - `line`: 0-based logical line number (split by `\n`)
-/// - `col`: 0-based column offset (byte offset)
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub struct BufferPoint {
-    pub line: usize,
-    pub col: usize,
-}
-
-impl BufferPoint {
-    pub fn new(line: usize, col: usize) -> Self {
-        Self { line, col }
-    }
-}
-
-/// Position after soft-wrapping but before folding (internal).
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub(super) struct WrapPoint {
-    pub row: usize,
-    pub col: usize,
-}
-
-impl WrapPoint {
-    pub fn new(row: usize, col: usize) -> Self {
-        Self { row, col }
-    }
-}
-
-/// Final display position (after soft-wrapping and folding).
-///
-/// - `row`: 0-based display row (final visible row)
-/// - `col`: 0-based display column
-#[derive(Debug, Clone, Copy, PartialEq, Eq, Hash)]
-pub struct DisplayPoint {
-    pub row: usize,
-    pub col: usize,
-}
-
-impl DisplayPoint {
-    pub fn new(row: usize, col: usize) -> Self {
-        Self { row, col }
-    }
-}