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Implement set_history_buttons for Tk toolbar. - #17200
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anntzer
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Apr 20, 2020
timhoffm
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May 1, 2020
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This makes the backward/forward buttons change enabled state based on whether there are actually old/new views available.
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PR Summary
This makes the backward/forward buttons change enabled state based on whether there are actually old/new views available.
This depends on #17111 because otherwise
self._buttonsis not initialized early enough.PR Checklist