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apply_command

rosace_widgets::tree::text_edit

Function apply_command 

Source 
pub fn apply_command(
    value: &str,
    state: &TextEditState,
    cmd: Command,
    now: f32,
) -> Option<(String, TextEditState)>
Expand description

Execute a non-clipboard Command. Copy/Cut/Paste return None — clipboard I/O is the caller’s job (rosace/src/engine.rs, which already owns rosace-clipboard; this crate doesn’t depend on it). Undo/Redo also return None on a genuinely empty stack; every other command always returns Some (even a saturated move bumps last_edit_at for the blink reset, matching Step 1).