Enum Event 

#[non_exhaustive]
pub enum Event {
    Editor(Action),
    HighlightSweep,
    OpenFind,
    OpenReplace,
    CloseFind,
    FindQuery(String),
    ToggleCase,
    ToggleWholeWord,
    ToggleRegex,
    ToggleFindInSelection,
    FindNext,
    FindPrev,
    FindSelectAll,
    ToggleReplace,
    ReplaceText(String),
    ReplaceOne,
    ReplaceAll,
    TogglePreserveCase,
    CycleFocus {
        back: bool,
    },
    PointerDown,
    Focused {
        replace: bool,
        on: bool,
    },
}

The opaque message a CodeEditor emits and consumes. The host never matches on it — it only maps it through the three wires (self.editor.update(e).map(Message::Editor) and the same for view / subscription). It is deliberately opaque: the internal set churns with every refactor, so host-relevant signals come through the curated read accessors and builder callbacks instead. A host that genuinely needs the raw semantic vocabulary drops to the Editor power tier, where Action is the stable, match-on-me enum.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Editor(Action)

A semantic action published by the underlying widget.

HighlightSweep

One frame tick of the highlight sweep — the internal pump that drives tokenization to convergence (and fixes cold load). Emitted by subscription only while a dirty highlight frontier remains, so an idle document does zero per-frame work.

OpenFind

Open the find bar (Ctrl+F), seeding the query from a single-line selection.

OpenReplace

Open the find bar with the replace row expanded (Ctrl+H).

CloseFind

Close the find bar (Escape), returning focus to the editor.

FindQuery(String)

The query text changed.

ToggleCase

Toggle the case-sensitive (Aa) option.

ToggleWholeWord

Toggle the whole-word (ab|) option.

ToggleRegex

Toggle the regex (.*) option.

ToggleFindInSelection

Toggle find-in-selection: capture the current selection as the scope.

FindNext

Advance to the next match.

FindPrev

Step to the previous match.

FindSelectAll

Turn every match into a caret (Alt+Enter).

ToggleReplace

Toggle the replace row (the chevron).

ReplaceText(String)

The replacement text changed.

ReplaceOne

Replace the active match and advance.

ReplaceAll

Replace every match in one undo step.

TogglePreserveCase

Toggle the preserve-case (AB) replace option.

CycleFocus

Tab / Shift+Tab moved focus between the bar’s inputs and the editor.

Fields

back: bool

Whether focus moved backwards (Shift+Tab).

PointerDown

A left button press landed somewhere — re-assert single focus.

Focused

A bar input gained or lost native focus; mirror it into the ring flags.

Fields

replace: bool

Whether this is the replace input (else the find input).

on: bool

Whether it is now focused.

Trait Implementations

impl Clone for Event

fn clone(&self) -> Event

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Event

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.