Struct CommandBatch 

pub struct CommandBatch { /* private fields */ }

A batch of commands that execute and undo together.

Useful for operations that span multiple widgets or steps but should appear as a single undo entry.

Implementations

impl CommandBatch

pub fn new(description: impl Into<String>) -> Self

Create a new command batch.

pub fn push(&mut self, cmd: Box<dyn UndoableCmd>)

Add a command to the batch.

pub fn push_executed(&mut self, cmd: Box<dyn UndoableCmd>)

Add a pre-executed command to the batch.

Use this for commands that have already been executed externally. The command will be properly undone when the batch is undone.

pub fn len(&self) -> usize

Number of commands in the batch.

pub fn is_empty(&self) -> bool

Check if the batch is empty.

Trait Implementations

impl Debug for CommandBatch

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

Formats the value using the given formatter.

impl UndoableCmd for CommandBatch

fn execute(&mut self) -> CommandResult

Execute the command, applying its effect.

fn undo(&mut self) -> CommandResult

Undo the command, reverting its effect.

fn redo(&mut self) -> CommandResult

Redo the command after it was undone.

fn description(&self) -> &str

Human-readable description for UI display.

fn size_bytes(&self) -> usize

Size of this command in bytes for memory budgeting.

fn metadata(&self) -> &CommandMetadata

Get the command metadata.

fn as_any(&self) -> &dyn Any

Downcast to concrete type for merging.

fn as_any_mut(&mut self) -> &mut dyn Any

Downcast to mutable concrete type for merging.

fn debug_name(&self) -> &'static str

Debug description of the command.

fn can_merge(&self, _other: &dyn UndoableCmd, _config: &MergeConfig) -> bool

Check if this command can merge with another.

fn merge_text(&self) -> Option<&str>

Merge another command into this one.

fn accept_merge(&mut self, _other: &dyn UndoableCmd) -> bool

Accept a merge from another command.

fn target(&self) -> Option<WidgetId>

Get the target widget ID, if any.