uapmd-binding/dev.atsushieno.uapmd/NativeCommandManager

NativeCommandManager

class NativeCommandManager : CommandManager

Properties

Functions

open override fun beginGesture(description: String, origin: MutationOrigin = MutationOrigin.User, batching: StepEventBatching = StepEventBatching.PerCommand): UndoResult

A gesture is a step that coalesces adjacent commands sharing a command id: intermediate values are applied, but history keeps only the first and the last.

beginStep

open override fun beginStep(description: String, origin: MutationOrigin = MutationOrigin.User, batching: StepEventBatching = StepEventBatching.PerCommand): UndoResult

Opens one named history step spanning several commands. Commands performed while it is open are applied immediately but enter history as one entry only when endStep succeeds. Nested steps are deliberately rejected.

cancelGesture

open override fun cancelGesture(completion: (UndoResult) -> Unit? = null)

cancelStep

open override fun cancelStep(completion: (UndoResult) -> Unit? = null)

Reverts every child that already ran, in reverse order.

clear

open override fun clear(markCurrentStateSaved: Boolean = true): Boolean

Releases every retained revert and makes the current document a new history root. Fails while a command is pending or a step is open.

endGesture

open override fun endGesture(completion: (UndoResult) -> Unit? = null)

endStep

open override fun endStep(completion: (UndoResult) -> Unit? = null)

markSaved

open override fun markSaved(): Boolean

Save points and retention. What "dirty" means belongs to the history, not to whoever writes the file: a numeric cursor cannot tell an undo followed by a fresh edit from the state that was saved.

markStateSaved

open override fun markStateSaved(stateId: Long): Boolean

redo

open override fun redo(completion: (UndoResult) -> Unit? = null)

setMaximumHistorySizeInBytes

open override fun setMaximumHistorySizeInBytes(bytes: Long): Boolean

shutdown

open override fun shutdown()

Refuses new work and completes pending notification as Cancelled.

undo

open override fun undo(completion: (UndoResult) -> Unit? = null)