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Add ability to fold/unfold headers on <CR> in tagbar window (#781)

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Closes #778

Add to the `JumpToTag()` routine so if the current line does not contain
a valid tag, then it will check if the line is foldable, and if so will
either call the `OpenFold()` or `CloseFold()` as necessary. This allows
the `<Enter>` key to be used to toggle a foldable header in the tagbar
window.
This commit is contained in:
David Hegland
2021-07-27 08:01:05 -05:00
committed by GitHub
parent 2da3443f5f
commit a0a5714910
2 changed files with 23 additions and 2 deletions
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17
autoload/tagbar.vim
View File

@@ -2333,6 +2333,23 @@ function! s:JumpToTag(stay_in_tagbar) abort
let autoclose = w:autoclose
if empty(taginfo) || !taginfo.isNormalTag()
" Cursor line not on a tag. Check if this is the start of a foldable
" line and if so, initiate the CloseFold() / OpenFold(). First trim
" any whitespace from the start of the line so we don't have to worry
" about multiple nested folds that are indented
"
" NOTE: This will only work with folds that are not also tags. For
" example in a class definition that acts as the start of a fold when
" there are member functions in the class, that line is also a valid
" tag, so hitting <CR> on that line will cause it to jump to the tag,
" not fold/unfold that particular fold
let line = substitute(getline('.'), '^\s*\(.\{-}\)\s*$', '\1', '')
if (match(line, g:tagbar#icon_open . '[-+ ]')) == 0
call s:CloseFold()
elseif (match(line, g:tagbar#icon_closed . '[-+ ]')) == 0
call s:OpenFold()
endif
return
endif

8
doc/tagbar.txt
View File

@@ -212,6 +212,10 @@ by moving the cursor to a tag and pressing <Enter> or double-clicking on it
with the mouse. The source file will then move to the definition and put the
cursor in the corresponding line. This won't work for pseudo-tags.
If the current line of the tagbar window is not on a tag, for example on the
'functions' tag-kind and <Enter> is hit, then that tag-kind will be folded or
unfolded if possible.
Sorting~
You can sort the tags in the Tagbar window in two ways: by name or by file
order. Sorting them by name simply displays the tags in their alphabetical
@@ -381,8 +385,8 @@ The following mappings are valid in the Tagbar window:
<F1>/? Display key mapping help.
Map option: tagbar_map_help
<CR>/<Enter> Jump to the tag under the cursor. Doesn't work for pseudo-tags
or generic headers.
<CR>/<Enter> Jump to the tag under the cursor. Doesn't work for pseudo-tags.
If on generic header, it will fold/unfold that header.
Map option: tagbar_map_jump
p Jump to the tag under the cursor, but stay in the Tagbar window.
Map option: tagbar_map_preview