Key map

data class EditorKeyChord(val modifiers: Int, val keyCode: Int)
data class EditorKeyBinding(
    val first: EditorKeyChord,
    val second: EditorKeyChord = EditorKeyChord(0, 0),
    val command: Int,
)

fun interface EditorShortcutHandler {
    fun onShortcut(binding: EditorKeyBinding, controller: SweetEditorController)
}

class EditorKeyMap {
    fun addBinding(binding: EditorKeyBinding)
    fun removeBinding(binding: EditorKeyBinding)
    fun registerCommand(binding: EditorKeyBinding, handler: EditorShortcutHandler): Int
    fun handlerFor(commandId: Int): EditorShortcutHandler?
    fun snapshotBindings(): List<EditorKeyBinding>

    companion object {
        fun defaultKeyMap(): EditorKeyMap  // vscode()
        fun vscode(): EditorKeyMap
        fun jetbrains(): EditorKeyMap
        fun sublime(): EditorKeyMap
    }
}

Pass the map to SweetEditor(keyMap = …) or controller.setKeyMap. null on the composable uses defaultKeyMap().

Presets

All presets share: arrows, Home/End, Page Up/Down, Shift-select, Backspace/Delete/Tab/Enter, Select All, Undo, clipboard, Trigger Completion (Ctrl/⌘+Space).

Differences:

	VS Code / Sublime	JetBrains
Redo	Ctrl/⌘+Shift+Z, Ctrl/⌘+Y	Ctrl/⌘+Shift+Z
Delete line	Ctrl/⌘+Shift+K	Ctrl/⌘+Y
Duplicate line	Alt+Shift+Up/Down (VS Code)	Ctrl/⌘+D (down)
Move line	Alt+Up/Down (VS Code); Ctrl+Shift+Up/Down (Sublime)	Alt+Shift+Up/Down
Insert line below	Ctrl/⌘+Enter	Shift+Enter
Insert line above	Ctrl/⌘+Shift+Enter	Ctrl/⌥+Enter (or ⌘+⌥+Enter)

Custom command

val map = EditorKeyMap.vscode()
map.registerCommand(
    EditorKeyBinding(first = EditorKeyChord(modifiers = /* ctrl/meta bits */, keyCode = /* key */), command = 0),
) { _, controller ->
    controller.triggerCompletion()
}

command = 0 allocates a custom id. registerCommand returns that id.

Chord integer encodings match the native key table. Prefer starting from a preset and snapshotBindings() rather than inventing raw codes.