class open_in_vim(Command):
    """:open_in_vim <filename>

    Opens a file in a new vim tab, if vim is not already running, opens vim.
    """

    def execute(self):
        if self.arg(1):
            _open(self.rest(1))
        else:
            _open(self.fm.thisfile.path)


    def _open(file_name):
        regex = re.compile('(^|/)*nvim$')
        vim_pane = filter(regex.search, check_output(['tmux', 'list-panes', '-F', ''#{pane_id} #{pane_current_command}'']))[0].split(' ')[0]

        if vim_pane:
            check_output(['tmux', 'send-keys', '-t', vim_pane, 'Escape', 'Escape', ':tab', 'Space', 'drop', 'Space', file_name, 'Enter'])
        else:
            check_output(['tmux', 'split-window', '-h', '-p', '75', '-c', ''#{pane_current_path}'', '"nvim {}"'.format(file_name)])


    def tab(self, tabnum):
        return self._tab_directory_content()