Added better navigation in NERDTree and tagbar

.vimrc

@@ -9,19 +9,22 @@ endif
 
 " Pre-plugin calls
 let g:ale_completion_enabled = 1
-let g:ale_set_balloons = 1
+let g:ale_hover_to_floating_preview = 1
+let g:ale_floating_preview = 1
 
 " Plugins
 call plug#begin('~/.vim/plugged')
 Plug 'preservim/nerdtree'
 Plug 'tpope/vim-fugitive'
 Plug 'tpope/vim-commentary'
-" Plug 'fatih/vim-go', { 'do': ':GoUpdateBinaries' }
+Plug 'fatih/vim-go', { 'do': ':GoUpdateBinaries' }
 Plug 'itchyny/lightline.vim'
 Plug 'dikiaap/minimalist'
 Plug 'morhetz/gruvbox'
 Plug 'dense-analysis/ale'
 Plug 'maximbaz/lightline-ale'
+Plug 'preservim/tagbar'
+Plug 'vim-php/tagbar-phpctags.vim'
 call plug#end()
 		
 filetype plugin indent on
@@ -54,6 +57,7 @@ set whichwrap+=<,>,[,],h,l
 set undofile
 set undodir=~/.vim/undo
 
+
 " Gruvbox
 let g:gruvbox_italic = 1
 let g:gruvbox_bold = 1
@@ -61,8 +65,14 @@ let g:gruvbox_transparent_bg = 1
 colorscheme gruvbox
 
 " ALE completion
-set omnifunc=ale#completion#OmniFunc
 let g:ale_completion_autoimport = 1
+set omnifunc=ale#completion#OmniFunc
+
+" Ale keymaps
+nnoremap <C-a>g :ALEGoToDefinition -tab<CR>
+nnoremap <C-a>G :ALEGoToDefinition<CR>
+nnoremap <C-a>h :ALEHover<CR>
+nnoremap <C-a>f :ALEFindReferences<CR>
 
 " ALE navigation
 nmap <silent> <C-k> <Plug>(ale_previous_wrap)
@@ -76,7 +86,7 @@ let g:lightline = {
   \ 'active': {
   \   'left': [
   \     [ 'mode', 'paste' ],
-  \     [ 'gitbranch', 'readonly', 'filename', 'modified' ]
+  \     [ 'gitbranch', 'readonly', 'filename', 'tagbar', 'modified' ]
   \   ],
   \   'right': [ 
   \     [ 'linter_checking', 'linter_errors', 'linter_warnings', 'linter_infos', 'linter_ok' ], 
@@ -84,6 +94,9 @@ let g:lightline = {
   \     [ 'fileformat', 'fileencoding', 'filetype' ]
   \   ]
   \ },
+  \ 'component': {
+  \   'tagbar': '%{tagbar#currenttag("%s", "", "f", "nearest-stl")}',
+  \ },
   \ 'component_function': {
   \   'gitbranch': 'FugitiveHead',
   \   'offset': 'FileOffset'
@@ -111,30 +124,64 @@ endfunction
 " NERDtree
 " Start NERDTree if no file was specified
 autocmd StdinReadPre * let s:std_in=1
-autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | NERDTree | endif
+" autocmd VimEnter * if argc() == 0 && !exists("s:std_in") | call NERDTreeToggleCustom() | endif
 " Close NERDTree on opening file
 let NERDTreeQuitOnOpen=1
 " Show hidden files
 let NERDTreeShowHidden=1
+
+function! NERDTreeToggleCustom()
+
+  " If NERDTree is open in the current buffer
+  if (exists("t:NERDTreeBufName") && bufwinnr(t:NERDTreeBufName) != -1)
+    exe ":NERDTreeClose"
+  elseif bufname('%') != ""
+    exe ":NERDTreeFind"
+  else
+    exe ":NERDTreeCWD"
+  endif
+
+endfunction
+
 " Toggle NERDTree on <space>-o
-map <Space>o :NERDTreeToggle<CR>
-
-" " vim-go
-" let g:go_highlight_types = 1
-" let g:go_highlight_fields = 1
-" let g:go_highlight_functions = 1
-" let g:go_highlight_function_calls = 1
-" let g:go_highlight_operators = 1
-" let g:go_auto_type_info = 1
-" let g:go_fmt_command = "goimports"
+map <Space>o :call NERDTreeToggleCustom()<CR>
+
+" Tagbar
+let g:tagbar_autoclose = 1
+let g:tagbar_autofocus = 1
+let g:tagbar_map_showproto = ''
+
+" Toggle transparent background
+let g:is_transparent = 0
+function! Toggle_transparent()
+  echo g:is_transparent
+    if g:is_transparent == 0
+        hi Normal guibg=NONE ctermbg=NONE
+        let g:is_transparent = 1
+    else
+        set background=dark
+        let g:is_transparent = 0
+    endif
+endfunction
+nnoremap <Space>T :call Toggle_transparent()<CR>
+
+" vim-go
+let g:go_highlight_types = 1
+let g:go_highlight_fields = 1
+let g:go_highlight_functions = 1
+let g:go_highlight_function_calls = 1
+let g:go_highlight_operators = 1
+let g:go_auto_type_info = 1
+let g:go_fmt_command = "goimports"
 " let g:go_list_type = "quickfix"
 
-" map <C-g>v :GoVet<CR>
-" map <C-g>r :GoRun<CR>
-" map <C-g>b :GoBuild<CR>
+map <C-g>v :GoVet<CR>
+map <C-g>r :GoRun<CR>
+map <C-g>b :GoBuild<CR>
 
 " Key mappings
 map <C-l>n :cnext<CR>
 map <C-l>p :cprevious<CR>
 nnoremap <C-l>c :cclose<CR>
 
+nmap <Space>t :TagbarToggle<CR>