Open NERDTree and Tlist above each other in Vim

Question

I'm looking for a way to (automatically) open NERDTree and Tlist on the left side directly above each other, so that each plugin takes up half of the screen height. I already found this question, in which the answer of Mohammed is kind of what I'm looking for. However, I'm wondering if maybe there is a more direct way of doing this.

Photoelectron

possible duplicate of Opening a window in a horizontal split of a vertical split – Hazan

@Hazan Yeah, of course it's kind of a duplicate. But that question didn't receive a satisfying answer and hasn't seen any activity in a couple of months. So how would I go about reactivating that question, other than extending it to a new one? – Photoelectron

Answer 1

Here's a solution that requires a small edit to the 'taglist.vim' script. I haven't worked out all the potential ramifications, but it seems to work nicely so far. Modify the 'Tlist_Window_Create' function in 'taglist.vim' to include the elseif statement shown here:

...
" Create a new window. If user prefers a horizontal window, then open
" a horizontally split window. Otherwise open a vertically split
" window
if g:Tlist_Use_Horiz_Window
    " Open a horizontally split window
    let win_dir = 'botright'
    " Horizontal window height
    let win_size = g:Tlist_WinHeight
elseif g:Tlist_Use_Split_Window
    " Open the window in a horizontal split  of current window
    let win_dir = 'abo'
    let win_size = g:Tlist_WinWidth
else
...

I inserted this starting at line 1290 in the latest TagList (v4.5). Then add the following to your .vimrc

let Tlist_Use_Split_Window = 1
com TT NERDTree | TlistToggle

Now the :TT command opens the TagList above the NERDTree in a single vertical window. As is it doesn't quite split halfway, but it's close. If you prefer the tree on top change the abo above to split.

Colyer

also, the TT you've defined doesn't completely toggle NERDTree-ideally, using TT either way should either open them both, and close them both. – Buttonwood

@Adam It looks like if you use NERDTreeToggle instead of NERDTree when defining TT, it will close NERDTree appropriately. However, this only works if you use 'abo' for win_dir. If you use 'split', taglist will complain about the window not being open and open a new window, which messes things up (but if you do use 'split' the windows are split halfway). What I have defined after the TT definition is noremap <S-Space> :TT<CR><C-w>= - this resizes all windows equally on show or hide, but typically this is what I want anyway. – Discharge