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ultimate-vim/sources_non_forked/nerdtree/lib/nerdtree/creator.vim
2016-05-14 12:57:54 +01:00

379 lines
11 KiB
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"CLASS: Creator
"Creates tab/window/mirror nerdtree windows. Sets up all the window and
"buffer options and key mappings etc.
"============================================================
let s:Creator = {}
let g:NERDTreeCreator = s:Creator
"FUNCTION: s:Creator._bindMappings() {{{1
function! s:Creator._bindMappings()
"make <cr> do the same as the activate node mapping
nnoremap <silent> <buffer> <cr> :call nerdtree#ui_glue#invokeKeyMap(g:NERDTreeMapActivateNode)<cr>
call g:NERDTreeKeyMap.BindAll()
command! -buffer -nargs=? Bookmark :call nerdtree#ui_glue#bookmarkNode('<args>')
command! -buffer -complete=customlist,nerdtree#completeBookmarks -nargs=1 RevealBookmark :call nerdtree#ui_glue#revealBookmark('<args>')
command! -buffer -complete=customlist,nerdtree#completeBookmarks -nargs=1 OpenBookmark :call nerdtree#ui_glue#openBookmark('<args>')
command! -buffer -complete=customlist,nerdtree#completeBookmarks -nargs=* ClearBookmarks call nerdtree#ui_glue#clearBookmarks('<args>')
command! -buffer -complete=customlist,nerdtree#completeBookmarks -nargs=+ BookmarkToRoot call g:NERDTreeBookmark.ToRoot('<args>', b:NERDTree)
command! -buffer -nargs=0 ClearAllBookmarks call g:NERDTreeBookmark.ClearAll() <bar> call b:NERDTree.render()
command! -buffer -nargs=0 ReadBookmarks call g:NERDTreeBookmark.CacheBookmarks(0) <bar> call b:NERDTree.render()
command! -buffer -nargs=0 WriteBookmarks call g:NERDTreeBookmark.Write()
endfunction
"FUNCTION: s:Creator._broadcastInitEvent() {{{1
function! s:Creator._broadcastInitEvent()
silent doautocmd User NERDTreeInit
endfunction
" FUNCTION: s:Creator.BufNamePrefix() {{{2
function! s:Creator.BufNamePrefix()
return 'NERD_tree_'
endfunction
"FUNCTION: s:Creator.CreateTabTree(a:name) {{{1
function! s:Creator.CreateTabTree(name)
let creator = s:Creator.New()
call creator.createTabTree(a:name)
endfunction
"FUNCTION: s:Creator.createTabTree(a:name) {{{1
"name: the name of a bookmark or a directory
function! s:Creator.createTabTree(name)
let path = self._pathForString(a:name)
"abort if exception was thrown (bookmark/dir doesn't exist)
if empty(path)
return
endif
if path == {}
return
endif
"if instructed to, then change the vim CWD to the dir the NERDTree is
"inited in
if g:NERDTreeChDirMode != 0
call path.changeToDir()
endif
if g:NERDTree.ExistsForTab()
if g:NERDTree.IsOpen()
call g:NERDTree.Close()
endif
call self._removeTreeBufForTab()
endif
call self._createTreeWin()
call self._createNERDTree(path, "tab")
call b:NERDTree.render()
call b:NERDTree.root.putCursorHere(0, 0)
call self._broadcastInitEvent()
endfunction
"FUNCTION: s:Creator.CreateWindowTree(dir) {{{1
function! s:Creator.CreateWindowTree(dir)
let creator = s:Creator.New()
call creator.createWindowTree(a:dir)
endfunction
"FUNCTION: s:Creator.createWindowTree(dir) {{{1
function! s:Creator.createWindowTree(dir)
try
let path = g:NERDTreePath.New(a:dir)
catch /^NERDTree.InvalidArgumentsError/
call nerdtree#echo("Invalid directory name:" . a:name)
return
endtry
"we want the directory buffer to disappear when we do the :edit below
setlocal bufhidden=wipe
let previousBuf = expand("#")
"we need a unique name for each window tree buffer to ensure they are
"all independent
exec g:NERDTreeCreatePrefix . " edit " . self._nextBufferName()
call self._createNERDTree(path, "window")
let b:NERDTree._previousBuf = bufnr(previousBuf)
call self._setCommonBufOptions()
call b:NERDTree.render()
call self._broadcastInitEvent()
endfunction
" FUNCTION: s:Creator._createNERDTree(path) {{{1
function! s:Creator._createNERDTree(path, type)
let b:NERDTree = g:NERDTree.New(a:path, a:type)
"TODO: This is kept for compatability only since many things use
"b:NERDTreeRoot instead of the new NERDTree.root
"Remove this one day
let b:NERDTreeRoot = b:NERDTree.root
call b:NERDTree.root.open()
endfunction
" FUNCTION: s:Creator.CreateMirror() {{{1
function! s:Creator.CreateMirror()
let creator = s:Creator.New()
call creator.createMirror()
endfunction
" FUNCTION: s:Creator.createMirror() {{{1
function! s:Creator.createMirror()
"get the names off all the nerd tree buffers
let treeBufNames = []
for i in range(1, tabpagenr("$"))
let nextName = self._tabpagevar(i, 'NERDTreeBufName')
if nextName != -1 && (!exists("t:NERDTreeBufName") || nextName != t:NERDTreeBufName)
call add(treeBufNames, nextName)
endif
endfor
let treeBufNames = self._uniq(treeBufNames)
"map the option names (that the user will be prompted with) to the nerd
"tree buffer names
let options = {}
let i = 0
while i < len(treeBufNames)
let bufName = treeBufNames[i]
let treeRoot = getbufvar(bufName, "NERDTree").root
let options[i+1 . '. ' . treeRoot.path.str() . ' (buf name: ' . bufName . ')'] = bufName
let i = i + 1
endwhile
"work out which tree to mirror, if there is more than 1 then ask the user
let bufferName = ''
if len(keys(options)) > 1
let choices = ["Choose a tree to mirror"]
let choices = extend(choices, sort(keys(options)))
let choice = inputlist(choices)
if choice < 1 || choice > len(options) || choice ==# ''
return
endif
let bufferName = options[sort(keys(options))[choice-1]]
elseif len(keys(options)) ==# 1
let bufferName = values(options)[0]
else
call nerdtree#echo("No trees to mirror")
return
endif
if g:NERDTree.ExistsForTab() && g:NERDTree.IsOpen()
call g:NERDTree.Close()
endif
let t:NERDTreeBufName = bufferName
call self._createTreeWin()
exec 'buffer ' . bufferName
if !&hidden
call b:NERDTree.render()
endif
endfunction
"FUNCTION: s:Creator._createTreeWin() {{{1
"Inits the NERD tree window. ie. opens it, sizes it, sets all the local
"options etc
function! s:Creator._createTreeWin()
"create the nerd tree window
let splitLocation = g:NERDTreeWinPos ==# "left" ? "topleft " : "botright "
let splitSize = g:NERDTreeWinSize
if !exists('t:NERDTreeBufName')
let t:NERDTreeBufName = self._nextBufferName()
silent! exec splitLocation . 'vertical ' . splitSize . ' new'
silent! exec "edit " . t:NERDTreeBufName
else
silent! exec splitLocation . 'vertical ' . splitSize . ' split'
silent! exec "buffer " . t:NERDTreeBufName
endif
setlocal winfixwidth
call self._setCommonBufOptions()
endfunction
"FUNCTION: s:Creator._isBufHidden(nr) {{{1
function! s:Creator._isBufHidden(nr)
redir => bufs
silent ls!
redir END
return bufs =~ a:nr . '..h'
endfunction
"FUNCTION: s:Creator.New() {{{1
function! s:Creator.New()
let newCreator = copy(self)
return newCreator
endfunction
" FUNCTION: s:Creator._nextBufferName() {{{2
" returns the buffer name for the next nerd tree
function! s:Creator._nextBufferName()
let name = s:Creator.BufNamePrefix() . self._nextBufferNumber()
return name
endfunction
" FUNCTION: s:Creator._nextBufferNumber() {{{2
" the number to add to the nerd tree buffer name to make the buf name unique
function! s:Creator._nextBufferNumber()
if !exists("s:Creator._NextBufNum")
let s:Creator._NextBufNum = 1
else
let s:Creator._NextBufNum += 1
endif
return s:Creator._NextBufNum
endfunction
"FUNCTION: s:Creator._pathForString(str) {{{1
"find a bookmark or adirectory for the given string
function! s:Creator._pathForString(str)
let path = {}
if g:NERDTreeBookmark.BookmarkExistsFor(a:str)
let path = g:NERDTreeBookmark.BookmarkFor(a:str).path
else
let dir = a:str ==# '' ? getcwd() : a:str
"hack to get an absolute path if a relative path is given
if dir =~# '^\.'
let dir = getcwd() . g:NERDTreePath.Slash() . dir
endif
let dir = g:NERDTreePath.Resolve(dir)
try
let path = g:NERDTreePath.New(dir)
catch /^NERDTree.InvalidArgumentsError/
call nerdtree#echo("No bookmark or directory found for: " . a:str)
return {}
endtry
endif
if !path.isDirectory
let path = path.getParent()
endif
return path
endfunction
" Function: s:Creator._removeTreeBufForTab() {{{1
function! s:Creator._removeTreeBufForTab()
let buf = bufnr(t:NERDTreeBufName)
"if &hidden is not set then it will already be gone
if buf != -1
"nerdtree buf may be mirrored/displayed elsewhere
if self._isBufHidden(buf)
exec "bwipeout " . buf
endif
endif
unlet t:NERDTreeBufName
endfunction
"FUNCTION: s:Creator._setCommonBufOptions() {{{1
function! s:Creator._setCommonBufOptions()
"throwaway buffer options
setlocal noswapfile
setlocal buftype=nofile
setlocal bufhidden=hide
setlocal nowrap
setlocal foldcolumn=0
setlocal foldmethod=manual
setlocal nofoldenable
setlocal nobuflisted
setlocal nospell
if g:NERDTreeShowLineNumbers
setlocal nu
else
setlocal nonu
if v:version >= 703
setlocal nornu
endif
endif
iabc <buffer>
if g:NERDTreeHighlightCursorline
setlocal cursorline
endif
call self._setupStatusline()
call self._bindMappings()
setlocal filetype=nerdtree
endfunction
"FUNCTION: s:Creator._setupStatusline() {{{1
function! s:Creator._setupStatusline()
if g:NERDTreeStatusline != -1
let &l:statusline = g:NERDTreeStatusline
endif
endfunction
" FUNCTION: s:Creator._tabpagevar(tabnr, var) {{{1
function! s:Creator._tabpagevar(tabnr, var)
let currentTab = tabpagenr()
let old_ei = &ei
set ei=all
exec "tabnext " . a:tabnr
let v = -1
if exists('t:' . a:var)
exec 'let v = t:' . a:var
endif
exec "tabnext " . currentTab
let &ei = old_ei
return v
endfunction
"FUNCTION: s:Creator.ToggleTabTree(dir) {{{1
function! s:Creator.ToggleTabTree(dir)
let creator = s:Creator.New()
call creator.toggleTabTree(a:dir)
endfunction
"FUNCTION: s:Creator.toggleTabTree(dir) {{{1
"Toggles the NERD tree. I.e the NERD tree is open, it is closed, if it is
"closed it is restored or initialized (if it doesnt exist)
"
"Args:
"dir: the full path for the root node (is only used if the NERD tree is being
"initialized.
function! s:Creator.toggleTabTree(dir)
if g:NERDTree.ExistsForTab()
if !g:NERDTree.IsOpen()
call self._createTreeWin()
if !&hidden
call b:NERDTree.render()
endif
call b:NERDTree.ui.restoreScreenState()
else
call g:NERDTree.Close()
endif
else
call self.createTabTree(a:dir)
endif
endfunction
" Function: s:Creator._uniq(list) {{{1
" returns a:list without duplicates
function! s:Creator._uniq(list)
let uniqlist = []
for elem in a:list
if index(uniqlist, elem) ==# -1
let uniqlist += [elem]
endif
endfor
return uniqlist
endfunction
" vim: set sw=4 sts=4 et fdm=marker: