24 lines
949 B
TypeScript
24 lines
949 B
TypeScript
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/**
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* Tiny shared clipboard for canvas node copy/paste.
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*
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* Both the context menu (right-click Copy/Paste) and the keyboard shortcuts
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* hook (Ctrl/Cmd+C / Ctrl/Cmd+V) read and write this single module-level
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* store, so copying a node via one entry point and pasting via the other
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* behaves consistently instead of each maintaining its own clipboard.
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*
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* Deliberately not React state -- nothing in the UI needs to re-render
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* reactively when the clipboard changes; consumers just read the current
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* value at the moment they need it (on paste, or when a menu opens).
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*/
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let clipboardNodeId: string | null = null;
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/** Returns the id of the node currently on the clipboard, or null if empty. */
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export function getClipboardNodeId(): string | null {
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return clipboardNodeId;
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}
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/** Sets (or clears, with `null`) the node id on the clipboard. */
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export function setClipboardNodeId(nodeId: string | null): void {
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clipboardNodeId = nodeId;
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}
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