parent
2304242ca2
commit
f7d7e274f4
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@ -1,15 +1,21 @@
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# vim:fileencoding=utf-8:noet
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from __future__ import (unicode_literals, division, absolute_import, print_function)
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from powerline.segments.vim import window_cached
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try:
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import vim
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except ImportError:
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vim = object()
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from powerline.bindings.vim import vim_command_exists, vim_get_autoload_func
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from powerline.theme import requires_segment_info
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currenttag = None
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tag_cache = {}
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@window_cached
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def current_tag(pl, flags='s'):
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@requires_segment_info
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def current_tag(segment_info, pl, flags='s'):
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'''Return tag that is near the cursor.
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:param str flags:
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@ -25,6 +31,10 @@ def current_tag(pl, flags='s'):
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.. _`official documentation`: https://github.com/majutsushi/tagbar/blob/master/doc/tagbar.txt
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'''
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global currenttag
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global tag_cache
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window_id = segment_info['window_id']
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if segment_info['mode'] == 'nc':
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return tag_cache.get(window_id, (None,))[-1]
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if not currenttag:
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if vim_command_exists('Tagbar'):
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currenttag = vim_get_autoload_func('tagbar#currenttag')
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@ -32,4 +42,10 @@ def current_tag(pl, flags='s'):
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return None
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else:
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return None
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return currenttag('%s', '', flags)
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prev_key, r = tag_cache.get(window_id, (None, None))
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key = (int(vim.eval('b:changedtick')), segment_info['window'].cursor[0])
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if prev_key and key == prev_key:
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return r
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r = currenttag('%s', '', flags)
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tag_cache[window_id] = (key, r)
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return r
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