30 lines
732 B
TypeScript
30 lines
732 B
TypeScript
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/**
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* Base Command interface for undo/redo operations
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*/
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export interface Command {
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/** Execute the command */
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execute: () => void;
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/** Undo the command */
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undo: () => void;
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/** Optional: merge with another command of same type */
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merge?: (other: Command) => boolean;
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/** Command name for display */
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name: string;
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/** Timestamp of execution */
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timestamp: number;
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}
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/**
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* History state interface
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*/
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export interface HistoryState {
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/** Stack of executed commands */
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undoStack: Command[];
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/** Stack of undone commands */
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redoStack: Command[];
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/** Maximum number of commands to store */
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maxHistorySize: number;
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/** Is currently executing a command (prevent recursion) */
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isExecuting: boolean;
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}
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