I use NERDTree plugin, and I want to create a mapping that focuses NERDTree window and enters search mode (to easily select files, of course). The difficult part here is focusing NERDTree window. I want the mapping to work from any window - even from the NERDTree window itself. So how can I focus that window using vimscript?
I found out that NERDTree's buffer has name "NERD_tree_1" (if only one NERDTree buffer exists, but that's enough for me). Can I somehow use it to focus a window containing that buffer?
use the :NERDTreeFocus command. You can bind it to a key, for example:
noremap <F2> :NERDTreeFocus <BAR> call feedkeys('/') <CR>
Related
I have a NERDTree setup nicely on my Rails project:
Sometimes, when I do fuzzy finding (Ctrl + P), I would accidentally still be on left tab; when I went to the file, it would replace the nerdtree's left tab. See screenshot below:
Super simple question, but how can I bring up the Nerdtree display back up like the first screnshot?
You should just be able to run :NERDTree again.
Additionally, I have this setting in my .vimrc, to make it less likely I'll delete the NERDTree buffer by accident with I'm compulsively typing :bd
autocmd FileType nerdtree cnoreabbrev <buffer> bd :echo "No you don't"<cr>
Deleting the buffer will permanently put NERDTree in hell (Vim plugins are usually brittle). If you do that, you have to restart Vim.
Also, if you use tabs in Vim, you should get NERDTreeTabs (dead but it works) which keeps NERDTree open / closed / in the same state across all tabs you have open, which is a standard design practice in all editors except Vim. I have a mapping set up to toggle NERDTree:
nnoremap <Leader>nt :NERDTreeTabsToggle<cr>
steal from my my vimrc!
nnoremap <F2> :NERDTreeToggle<CR>
Press F2 twice. The first one will close the NERDTree panel and second one will bring it up again.
F2 can be any key of your choice.
I have NERDTree opened on the default left side, and some vim file on the right side. After I do search with Ag like :Ag! "echo" I get results in the quickfix window. I chose one of the results and by pressing "e" it opens it to the right side and close the quickfix window, but cursor goes to the left side where the NERDTree is located. Is there a way to jump to opened file right after I click "e" and not pressing "ctrl+w" and "l"?
I have the same setup (NERDTree and Ag) and hadn’t noticed this behavior. My workflow is to open a file and then open NERDTree (or vice versa), then Ag at some point. And pressing Enter or e just took me to the line in the file, as expected. The key is that I have some file already open.
I can reproduce the problem you’re seeing by firing up Vim with no file, then opening NERDTree, then running Ag. So a workaround is to have some file open first -- not just an empty Vim with NERDTree open.
The workaround is pretty, uh, workable. It’s already natural to open and close NERDTree frequently. A useful mapping for this is:
nmap <Leader>n :NERDTreeToggle<CR>
An alternative mnemonic would be <Leader>e for Explore. And while we’re at it:
nmap <Leader>g :Ag!<CR>
So the sequence to grep (if you have NERDTree open but no buffer open) is simply ,n,g (assuming your leader is ,).
Consider I have a NERDTree window and more then 2 file view windows are opened in vim. In this case a common way to switch to NERDTree (navigating with several Ctrl+w g/h/j/k) is not very handy as it is not universal for all the open windows.
Is there a way to switch to NERDTree (or any other, may be) window directly?
<C-w>t
should do what you want.
You can make a mapping to do this:
nnoremap <silent> <Leader>t :NERDTreeFocus<CR>
Depending on your window layout, if NERDTree is near the top-left corner, it may have a fixed window number (:echo winnr() will tell you). You can then use [N]<C-w><C-w> to go to window number [N].
If your layout is more dynamic, it might make sense to include the window number in your 'statusline':
:set statusline+=\ %{winnr()}
here is my problem:
i'm using taglist and nerdtree.and set quickfix window displayed no matter if it has context.
and in my vimrc, i set them toggled in a fixed order, so i can get a layout i want.
but when i use C-o, C-i, C-], it will jump to a file, and if i want the features of taglist and nerdtree i should quit it and open it again.
but it will break the layout i want. so i have to quit all and open the file again.
so, is it possible to desable some features in some specific window?
thanks for any help.:)
You can disable certain commands for buffers via :map <buffer>; for sidebar windows like from NERDTree, that's good enough, as they always display the same (scratch) buffer. For example, to disable <C-O> in NERDTree:
:autocmd FileType nerdtree nnoremap <buffer> <C-o> <Nop>
I don't fully understand your question, but another approach (as it is hard to fully control where Vim places new buffer contents) would be to extend your "build your window layout" function from your .vimrc to first clean up any existing NERDTree / TagBar windows, so that you can call it later on (e.g. via a mapping) to "fix up" your layout again.
Is there a way to make NERDtree remember the state of folds when switching from buffer to buffer?
Here the my complete .vimrc:
set ignorecase
set scs
let perl_fold=1
hi Folded cterm=bold ctermfg=yellow ctermbg=lightblue
set modeline
cabbr N NERDTree
Here is what I am observing:
start NERDTree
select a file and use spacebar to open it in a new buffer (all folds are closed)
open some folds in the buffer
C-w w back to NERDTree
select a different file, use spacebar to open it
C-w w back to NERDTree
select the first file, hit spacebar
The folds I had opened originally are now closed.
I am editing perl files,so the perl_fold=1 is in force.
I'd like the state of the folds to be remembered as I bounce around from file to file.
Are you sure about the <Space> mapping? I don't see it listed in NERDTree's help.
Anyway, NERDTree has nothing to do with your buffers content or state, it's only a file explorer.
Without some mechanism to keep state of your buffers your folds are lost when you open a new file. Luckily you can add set hidden to your .vimrc.
With it buffers are kept around until you explicitly delete them with :bd. This means that you still have your folds when going back to your previous file, either by using NERDTree or by using :b <Tab>.
The Vim wiki has nice pages about buffers.