diff options
Diffstat (limited to 'apps/web/src/core/managers/commands.ts')
| -rw-r--r-- | apps/web/src/core/managers/commands.ts | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/apps/web/src/core/managers/commands.ts b/apps/web/src/core/managers/commands.ts new file mode 100644 index 00000000..d996a30e --- /dev/null +++ b/apps/web/src/core/managers/commands.ts @@ -0,0 +1,44 @@ +import type { Command } from "@/lib/commands"; + +export class CommandManager { + private history: Command[] = []; + private redoStack: Command[] = []; + + execute({ command }: { command: Command }): Command { + command.execute(); + this.history.push(command); + this.redoStack = []; + return command; + } + + undo(): void { + if (this.history.length === 0) return; + const command = this.history.pop(); + command?.undo(); + if (command) { + this.redoStack.push(command); + } + } + + redo(): void { + if (this.redoStack.length === 0) return; + const command = this.redoStack.pop(); + command?.redo(); + if (command) { + this.history.push(command); + } + } + + canUndo(): boolean { + return this.history.length > 0; + } + + canRedo(): boolean { + return this.redoStack.length > 0; + } + + clear(): void { + this.history = []; + this.redoStack = []; + } +} |
