# vim:fileencoding=utf-8:noet
from __future__ import (unicode_literals, division, absolute_import, print_function)
from powerline.theme import requires_segment_info
from powerline.bindings.vim import (current_tabpage, list_tabpages)
try:
import vim
except ImportError:
vim = object()
def tabpage_updated_segment_info(segment_info, tabpage):
segment_info = segment_info.copy()
window = tabpage.window
buffer = window.buffer
segment_info.update(
tabpage=tabpage,
tabnr=tabpage.number,
window=window,
winnr=window.number,
window_id=int(window.vars.get('powerline_window_id', -1)),
buffer=buffer,
bufnr=buffer.number,
)
return segment_info
[docs]
@requires_segment_info
def tablister(pl, segment_info, **kwargs):
'''List all tab pages in segment_info format
Specifically generates a list of segment info dictionaries with ``window``,
``winnr``, ``window_id``, ``buffer`` and ``bufnr`` keys set to tab-local
ones and additional ``tabpage`` and ``tabnr`` keys.
Adds either ``tab:`` or ``tab_nc:`` prefix to all segment highlight groups.
Works best with vim-7.4 or later: earlier versions miss tabpage object and
thus window objects are not available as well.
'''
cur_tabpage = current_tabpage()
cur_tabnr = cur_tabpage.number
def add_multiplier(tabpage, dct):
dct['priority_multiplier'] = 1 + (0.001 * abs(tabpage.number - cur_tabnr))
return dct
return (
(lambda tabpage, prefix: (
tabpage_updated_segment_info(segment_info, tabpage),
add_multiplier(tabpage, {
'highlight_group_prefix': prefix,
'divider_highlight_group': 'tab:divider'
})
))(tabpage, 'tab' if tabpage == cur_tabpage else 'tab_nc')
for tabpage in list_tabpages()
)
def buffer_updated_segment_info(segment_info, buffer):
segment_info = segment_info.copy()
segment_info.update(
window=None,
winnr=None,
window_id=None,
buffer=buffer,
bufnr=buffer.number,
)
return segment_info
[docs]
@requires_segment_info
def bufferlister(pl, segment_info, show_unlisted=False, **kwargs):
'''List all buffers in segment_info format
Specifically generates a list of segment info dictionaries with ``buffer``
and ``bufnr`` keys set to buffer-specific ones, ``window``, ``winnr`` and
``window_id`` keys set to None.
Adds one of ``buf:``, ``buf_nc:``, ``buf_mod:``, or ``buf_nc_mod``
prefix to all segment highlight groups.
:param bool show_unlisted:
True if unlisted buffers should be shown as well. Current buffer is
always shown.
'''
cur_buffer = vim.current.buffer
cur_bufnr = cur_buffer.number
def add_multiplier(buffer, dct):
dct['priority_multiplier'] = 1 + (0.001 * abs(buffer.number - cur_bufnr))
return dct
return (
(lambda buffer, current, modified: (
buffer_updated_segment_info(segment_info, buffer),
add_multiplier(buffer, {
'highlight_group_prefix': '{0}{1}'.format(current, modified),
'divider_highlight_group': 'tab:divider'
})
))(
buffer,
'buf' if buffer is cur_buffer else 'buf_nc',
'_mod' if int(vim.eval('getbufvar({0}, \'&modified\')'.format(buffer.number))) > 0 else ''
)
for buffer in vim.buffers if (
buffer is cur_buffer
or show_unlisted
# We can't use vim_getbufoption(segment_info, 'buflisted')
# here for performance reasons. Querying the buffer options
# through the vim python module's option attribute caused
# vim to think it needed to update the tabline for every
# keystroke after any event that changed the buffer's
# options.
#
# Using the vim module's eval method to directly use the
# buflisted(nr) vim method instead does not cause vim to
# update the tabline after every keystroke, but rather after
# events that would change that status. Fixes #1281
or int(vim.eval('buflisted(%s)' % buffer.number)) > 0
)
)