Nico Weber 627b152d49 MacPDF: Make opt-up and opt-down always go to previous / next page ...

When the outline has focus, arrow keys navigate the outline instead
of changing the current page.

Add opt-up and opt-down as a way to move by one page even when the
outline has focus. (This matches Preview.app.)

xib change: Added two menu Previous Page with key equivalent opt-up
and Next Page with key equivalent opt-down to Go menu and bound them to
goToPreviousPage: and goToNextPage: on First Responder.

When the outline has focus, the responder chain is outline ->
window, so also add the actions on the window controller, and
let that forward to the PDF view.

2023-10-11 21:38:15 -04:00

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