'Tab navigation with "most recently used" behaviour.
It\'s fired when pressing \'go to previous file\' or \'go to next file\'
shortcuts.
forward:
True: move to next file
False: move to previous file'

def tab_navigation_mru(self, forward=True):

    if ((self.tabs_switcher is None) or (not self.tabs_switcher.isVisible())):
        self.tabs_switcher = TabSwitcherWidget(self, self.stack_history, self.tabs)
        self.tabs_switcher.show()
    self.tabs_switcher.select_row((1 if forward else (-1)))
