Crate zng_ext_undo

Undo-redo app extension, service and commands.

Crate

This crate is part of the zng project.

Structs

UNDO

Undo-redo service.

UndoActionMergeArgs

Arguments for UndoAction::merge.

UndoManager

Undo-redo app extension.

UndoStackInfo

Snapshot of the undo or redo stacks in an UNDO scope.

UndoTransaction

Represents captured undo actions in an UNDO.transaction operation.

UndoVarModifyTag

Identifies var modify requests by undo/redo action.

WidgetUndoScope

Represents a widget undo scope.

Enums

UndoFullOp

Represents a full undo/redo action.

UndoOp

Represents an undo/redo action.

Statics

CLEAR_HISTORY_CMD

Represents the clear history action.

REDO_CMD

Represents the redo action.

UNDO_CMD

Represents the undo action.

UNDO_INTERVAL_VAR

Contextual undo interval.

UNDO_LIMIT_VAR

Contextual undo limit.

Traits

CommandUndoExt

Undo extension methods for commands.

RedoAction

Represents a single redo action.

UndoAction

Represents a single undo action.

UndoInfo

Metadata info about an action registered for undo action.

UndoSelect

Selects actions to undo or redo.

UndoSelector

Represents a type that can select actions for undo or redo once.

WidgetInfoUndoExt

Undo extension methods for widget info.