46 lines
1.3 KiB
TypeScript
46 lines
1.3 KiB
TypeScript
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type CopyShortcutKeyEvent = Pick<
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KeyboardEvent,
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"key" | "code" | "ctrlKey" | "shiftKey" | "altKey" | "metaKey"
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>;
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function isPhysicalCKey(e: CopyShortcutKeyEvent): boolean {
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return e.key.toLowerCase() === "c" || e.code === "KeyC";
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}
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export function isPlainCtrlCInterruptChord(e: CopyShortcutKeyEvent): boolean {
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return e.ctrlKey
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&& !e.shiftKey
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&& !e.altKey
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&& !e.metaKey
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&& isPhysicalCKey(e);
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}
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/** macOS Cmd+C / Super+C — forward when there is no xterm selection. */
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export function isPlainMetaCCopyChord(e: CopyShortcutKeyEvent): boolean {
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return e.metaKey
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&& !e.ctrlKey
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&& !e.shiftKey
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&& !e.altKey
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&& isPhysicalCKey(e);
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}
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/**
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* When copy matches with no xterm selection, pass the chord through instead of
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* consuming an empty clipboard write.
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*
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* - Ctrl+C → SIGINT (or Kitty Ctrl+C)
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* - Cmd+C → Kitty Super+C for nested TUIs (e.g. Herdr)
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*
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* Other no-selection copy bindings stay consumed as a safe no-op so keys like
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* F5 / Ctrl+L are not forwarded to the remote (#1461).
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*/
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export function shouldPassThroughCopyShortcut(
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action: string,
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hasSelection: boolean,
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e: CopyShortcutKeyEvent,
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): boolean {
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return action === "copy"
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&& !hasSelection
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&& (isPlainCtrlCInterruptChord(e) || isPlainMetaCCopyChord(e));
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}
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