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597cccce0f
nerdtree/plugin/NERD_tree.vim
Chris Perl 597cccce0f Add calls to NERDTreeAddKeyMap for previewing Bookmarks 
These calls to NERDTreeAddKeyMap use the same callback as when these
keys are mapped with a 'scope' of "Node."  This should not pose a
problem though as s:previewNodeCurrent, s:previewNodeHSplit and
s:previewNodeVSplit all just call the passed in node's open() method,
which gets passed on to an Opener object.
2012-01-25 15:57:41 -05:00

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" ============================================================================
" File: NERD_tree.vim
" Description: vim global plugin that provides a nice tree explorer
" Maintainer: Martin Grenfell <martin.grenfell at gmail dot com>
" Last Change: 28 December, 2011
" License: This program is free software. It comes without any warranty,
" to the extent permitted by applicable law. You can redistribute
" it and/or modify it under the terms of the Do What The Fuck You
" Want To Public License, Version 2, as published by Sam Hocevar.
" See http://sam.zoy.org/wtfpl/COPYING for more details.
"
" ============================================================================
let s:NERD_tree_version = '4.2.0'
" SECTION: Script init stuff {{{1
"============================================================
if exists("loaded_nerd_tree")
finish
endif
if v:version < 700
echoerr "NERDTree: this plugin requires vim >= 7. DOWNLOAD IT! You'll thank me later!"
finish
endif
let loaded_nerd_tree = 1
"for line continuation - i.e dont want C in &cpo
let s:old_cpo = &cpo
set cpo&vim
let s:running_windows = has("win16") || has("win32") || has("win64")
"Function: s:initVariable() function {{{2
"This function is used to initialise a given variable to a given value. The
"variable is only initialised if it does not exist prior
"
"Args:
"var: the name of the var to be initialised
"value: the value to initialise var to
"
"Returns:
"1 if the var is set, 0 otherwise
function! s:initVariable(var, value)
if !exists(a:var)
exec 'let ' . a:var . ' = ' . "'" . substitute(a:value, "'", "''", "g") . "'"
return 1
endif
return 0
endfunction
"SECTION: Init variable calls and other random constants {{{2
call s:initVariable("g:NERDChristmasTree", 1)
call s:initVariable("g:NERDTreeAutoCenter", 1)
call s:initVariable("g:NERDTreeAutoCenterThreshold", 3)
call s:initVariable("g:NERDTreeCaseSensitiveSort", 0)
call s:initVariable("g:NERDTreeChDirMode", 0)
call s:initVariable("g:NERDTreeMinimalUI", 0)
if !exists("g:NERDTreeIgnore")
let g:NERDTreeIgnore = ['\~$']
endif
call s:initVariable("g:NERDTreeBookmarksFile", expand('$HOME') . '/.NERDTreeBookmarks')
call s:initVariable("g:NERDTreeHighlightCursorline", 1)
call s:initVariable("g:NERDTreeHijackNetrw", 1)
call s:initVariable("g:NERDTreeMouseMode", 1)
call s:initVariable("g:NERDTreeNotificationThreshold", 100)
call s:initVariable("g:NERDTreeQuitOnOpen", 0)
call s:initVariable("g:NERDTreeShowBookmarks", 0)
call s:initVariable("g:NERDTreeShowFiles", 1)
call s:initVariable("g:NERDTreeShowHidden", 0)
call s:initVariable("g:NERDTreeShowLineNumbers", 0)
call s:initVariable("g:NERDTreeSortDirs", 1)
call s:initVariable("g:NERDTreeDirArrows", !s:running_windows)
if !exists("g:NERDTreeSortOrder")
let g:NERDTreeSortOrder = ['\/$', '*', '\.swp$', '\.bak$', '\~$']
else
"if there isnt a * in the sort sequence then add one
if count(g:NERDTreeSortOrder, '*') < 1
call add(g:NERDTreeSortOrder, '*')
endif
endif
"we need to use this number many times for sorting... so we calculate it only
"once here
let s:NERDTreeSortStarIndex = index(g:NERDTreeSortOrder, '*')
if !exists('g:NERDTreeStatusline')
"the exists() crap here is a hack to stop vim spazzing out when
"loading a session that was created with an open nerd tree. It spazzes
"because it doesnt store b:NERDTreeRoot (its a b: var, and its a hash)
let g:NERDTreeStatusline = "%{exists('b:NERDTreeRoot')?b:NERDTreeRoot.path.str():''}"
endif
call s:initVariable("g:NERDTreeWinPos", "left")
call s:initVariable("g:NERDTreeWinSize", 31)
"init the shell commands that will be used to copy nodes, and remove dir trees
"
"Note: the space after the command is important
if s:running_windows
call s:initVariable("g:NERDTreeRemoveDirCmd", 'rmdir /s /q ')
else
call s:initVariable("g:NERDTreeRemoveDirCmd", 'rm -rf ')
call s:initVariable("g:NERDTreeCopyCmd", 'cp -r ')
endif
"SECTION: Init variable calls for key mappings {{{2
call s:initVariable("g:NERDTreeMapActivateNode", "o")
call s:initVariable("g:NERDTreeMapChangeRoot", "C")
call s:initVariable("g:NERDTreeMapChdir", "cd")
call s:initVariable("g:NERDTreeMapCloseChildren", "X")
call s:initVariable("g:NERDTreeMapCloseDir", "x")
call s:initVariable("g:NERDTreeMapDeleteBookmark", "D")
call s:initVariable("g:NERDTreeMapMenu", "m")
call s:initVariable("g:NERDTreeMapHelp", "?")
call s:initVariable("g:NERDTreeMapJumpFirstChild", "K")
call s:initVariable("g:NERDTreeMapJumpLastChild", "J")
call s:initVariable("g:NERDTreeMapJumpNextSibling", "C-j")
call s:initVariable("g:NERDTreeMapJumpParent", "p")
call s:initVariable("g:NERDTreeMapJumpPrevSibling", "C-k")
call s:initVariable("g:NERDTreeMapJumpRoot", "P")
call s:initVariable("g:NERDTreeMapOpenExpl", "e")
call s:initVariable("g:NERDTreeMapOpenInTab", "t")
call s:initVariable("g:NERDTreeMapOpenInTabSilent", "T")
call s:initVariable("g:NERDTreeMapOpenRecursively", "O")
call s:initVariable("g:NERDTreeMapOpenSplit", "i")
call s:initVariable("g:NERDTreeMapOpenVSplit", "s")
call s:initVariable("g:NERDTreeMapPreview", "g" . NERDTreeMapActivateNode)
call s:initVariable("g:NERDTreeMapPreviewSplit", "g" . NERDTreeMapOpenSplit)
call s:initVariable("g:NERDTreeMapPreviewVSplit", "g" . NERDTreeMapOpenVSplit)
call s:initVariable("g:NERDTreeMapQuit", "q")
call s:initVariable("g:NERDTreeMapRefresh", "r")
call s:initVariable("g:NERDTreeMapRefreshRoot", "R")
call s:initVariable("g:NERDTreeMapToggleBookmarks", "B")
call s:initVariable("g:NERDTreeMapToggleFiles", "F")
call s:initVariable("g:NERDTreeMapToggleFilters", "f")
call s:initVariable("g:NERDTreeMapToggleHidden", "I")
call s:initVariable("g:NERDTreeMapToggleZoom", "A")
call s:initVariable("g:NERDTreeMapUpdir", "u")
call s:initVariable("g:NERDTreeMapUpdirKeepOpen", "U")
"SECTION: Script level variable declaration{{{2
if s:running_windows
let s:escape_chars = " `\|\"#%&,?()\*^<>"
else
let s:escape_chars = " \\`\|\"#%&,?()\*^<>[]"
endif
let s:NERDTreeBufName = 'NERD_tree_'
let s:tree_wid = 2
if g:NERDTreeDirArrows
let s:tree_markup_reg = '^\([▾▸] \| \+[▾▸] \| \+\)'
else
let s:tree_markup_reg = '^[ `|]*[\-+~]'
endif
let s:tree_up_dir_line = '.. (up a dir)'
"the number to add to the nerd tree buffer name to make the buf name unique
let s:next_buffer_number = 1
" SECTION: Commands {{{1
"============================================================
"init the command that users start the nerd tree with
command! -n=? -complete=dir -bar NERDTree :call s:initNerdTree('<args>')
command! -n=? -complete=dir -bar NERDTreeToggle :call s:toggle('<args>')
command! -n=0 -bar NERDTreeClose :call s:closeTreeIfOpen()
command! -n=1 -complete=customlist,s:completeBookmarks -bar NERDTreeFromBookmark call s:initNerdTree('<args>')
command! -n=0 -bar NERDTreeMirror call s:initNerdTreeMirror()
command! -n=0 -bar NERDTreeFind call s:findAndRevealPath()
" SECTION: Auto commands {{{1
"============================================================
augroup NERDTree
"Save the cursor position whenever we close the nerd tree
exec "autocmd BufWinLeave ". s:NERDTreeBufName ."* call <SID>saveScreenState()"
"disallow insert mode in the NERDTree
exec "autocmd BufEnter ". s:NERDTreeBufName ."* stopinsert"
augroup END
if g:NERDTreeHijackNetrw
augroup NERDTreeHijackNetrw
autocmd VimEnter * silent! autocmd! FileExplorer
au BufEnter,VimEnter * call s:checkForBrowse(expand("<amatch>"))
augroup END
endif
"SECTION: Classes {{{1
"============================================================
"CLASS: Bookmark {{{2
"============================================================
let s:Bookmark = {}
" FUNCTION: Bookmark.activate() {{{3
function! s:Bookmark.activate(...)
call self.open(a:0 ? a:1 : {})
endfunction
" FUNCTION: Bookmark.AddBookmark(name, path) {{{3
" Class method to add a new bookmark to the list, if a previous bookmark exists
" with the same name, just update the path for that bookmark
function! s:Bookmark.AddBookmark(name, path)
for i in s:Bookmark.Bookmarks()
if i.name ==# a:name
let i.path = a:path
return
endif
endfor
call add(s:Bookmark.Bookmarks(), s:Bookmark.New(a:name, a:path))
call s:Bookmark.Sort()
endfunction
" Function: Bookmark.Bookmarks() {{{3
" Class method to get all bookmarks. Lazily initializes the bookmarks global
" variable
function! s:Bookmark.Bookmarks()
if !exists("g:NERDTreeBookmarks")
let g:NERDTreeBookmarks = []
endif
return g:NERDTreeBookmarks
endfunction
" Function: Bookmark.BookmarkExistsFor(name) {{{3
" class method that returns 1 if a bookmark with the given name is found, 0
" otherwise
function! s:Bookmark.BookmarkExistsFor(name)
try
call s:Bookmark.BookmarkFor(a:name)
return 1
catch /^NERDTree.BookmarkNotFoundError/
return 0
endtry
endfunction
" Function: Bookmark.BookmarkFor(name) {{{3
" Class method to get the bookmark that has the given name. {} is return if no
" bookmark is found
function! s:Bookmark.BookmarkFor(name)
for i in s:Bookmark.Bookmarks()
if i.name ==# a:name
return i
endif
endfor
throw "NERDTree.BookmarkNotFoundError: no bookmark found for name: \"". a:name .'"'
endfunction
" Function: Bookmark.BookmarkNames() {{{3
" Class method to return an array of all bookmark names
function! s:Bookmark.BookmarkNames()
let names = []
for i in s:Bookmark.Bookmarks()
call add(names, i.name)
endfor
return names
endfunction
" FUNCTION: Bookmark.CacheBookmarks(silent) {{{3
" Class method to read all bookmarks from the bookmarks file intialize
" bookmark objects for each one.
"
" Args:
" silent - dont echo an error msg if invalid bookmarks are found
function! s:Bookmark.CacheBookmarks(silent)
if filereadable(g:NERDTreeBookmarksFile)
let g:NERDTreeBookmarks = []
let g:NERDTreeInvalidBookmarks = []
let bookmarkStrings = readfile(g:NERDTreeBookmarksFile)
let invalidBookmarksFound = 0
for i in bookmarkStrings
"ignore blank lines
if i != ''
let name = substitute(i, '^\(.\{-}\) .*$', '\1', '')
let path = substitute(i, '^.\{-} \(.*\)$', '\1', '')
try
let bookmark = s:Bookmark.New(name, s:Path.New(path))
call add(g:NERDTreeBookmarks, bookmark)
catch /^NERDTree.InvalidArgumentsError/
call add(g:NERDTreeInvalidBookmarks, i)
let invalidBookmarksFound += 1
endtry
endif
endfor
if invalidBookmarksFound
call s:Bookmark.Write()
if !a:silent
call s:echo(invalidBookmarksFound . " invalid bookmarks were read. See :help NERDTreeInvalidBookmarks for info.")
endif
endif
call s:Bookmark.Sort()
endif
endfunction
" FUNCTION: Bookmark.compareTo(otherbookmark) {{{3
" Compare these two bookmarks for sorting purposes
function! s:Bookmark.compareTo(otherbookmark)
return a:otherbookmark.name < self.name
endfunction
" FUNCTION: Bookmark.ClearAll() {{{3
" Class method to delete all bookmarks.
function! s:Bookmark.ClearAll()
for i in s:Bookmark.Bookmarks()
call i.delete()
endfor
call s:Bookmark.Write()
endfunction
" FUNCTION: Bookmark.delete() {{{3
" Delete this bookmark. If the node for this bookmark is under the current
" root, then recache bookmarks for its Path object
function! s:Bookmark.delete()
let node = {}
try
let node = self.getNode(1)
catch /^NERDTree.BookmarkedNodeNotFoundError/
endtry
call remove(s:Bookmark.Bookmarks(), index(s:Bookmark.Bookmarks(), self))
if !empty(node)
call node.path.cacheDisplayString()
endif
call s:Bookmark.Write()
endfunction
" FUNCTION: Bookmark.getNode(searchFromAbsoluteRoot) {{{3
" Gets the treenode for this bookmark
"
" Args:
" searchFromAbsoluteRoot: specifies whether we should search from the current
" tree root, or the highest cached node
function! s:Bookmark.getNode(searchFromAbsoluteRoot)
let searchRoot = a:searchFromAbsoluteRoot ? s:TreeDirNode.AbsoluteTreeRoot() : b:NERDTreeRoot
let targetNode = searchRoot.findNode(self.path)
if empty(targetNode)
throw "NERDTree.BookmarkedNodeNotFoundError: no node was found for bookmark: " . self.name
endif
return targetNode
endfunction
" FUNCTION: Bookmark.GetNodeForName(name, searchFromAbsoluteRoot) {{{3
" Class method that finds the bookmark with the given name and returns the
" treenode for it.
function! s:Bookmark.GetNodeForName(name, searchFromAbsoluteRoot)
let bookmark = s:Bookmark.BookmarkFor(a:name)
return bookmark.getNode(a:searchFromAbsoluteRoot)
endfunction
" FUNCTION: Bookmark.GetSelected() {{{3
" returns the Bookmark the cursor is over, or {}
function! s:Bookmark.GetSelected()
let line = getline(".")
let name = substitute(line, '^>\(.\{-}\) .\+$', '\1', '')
if name != line
try
return s:Bookmark.BookmarkFor(name)
catch /^NERDTree.BookmarkNotFoundError/
return {}
endtry
endif
return {}
endfunction
" Function: Bookmark.InvalidBookmarks() {{{3
" Class method to get all invalid bookmark strings read from the bookmarks
" file
function! s:Bookmark.InvalidBookmarks()
if !exists("g:NERDTreeInvalidBookmarks")
let g:NERDTreeInvalidBookmarks = []
endif
return g:NERDTreeInvalidBookmarks
endfunction
" FUNCTION: Bookmark.mustExist() {{{3
function! s:Bookmark.mustExist()
if !self.path.exists()
call s:Bookmark.CacheBookmarks(1)
throw "NERDTree.BookmarkPointsToInvalidLocationError: the bookmark \"".
\ self.name ."\" points to a non existing location: \"". self.path.str()
endif
endfunction
" FUNCTION: Bookmark.New(name, path) {{{3
" Create a new bookmark object with the given name and path object
function! s:Bookmark.New(name, path)
if a:name =~# ' '
throw "NERDTree.IllegalBookmarkNameError: illegal name:" . a:name
endif
let newBookmark = copy(self)
let newBookmark.name = a:name
let newBookmark.path = a:path
return newBookmark
endfunction
" FUNCTION: Bookmark.open([options]) {{{3
"Args:
"A dictionary containing the following keys (all optional):
" 'where': Specifies whether the node should be opened in new split/tab or in
" the previous window. Can be either 'v' (vertical split), 'h'
" (horizontal split), 't' (new tab) or 'p' (previous window).
" 'reuse': if a window is displaying the file then jump the cursor there
" 'keepopen': dont close the tree window
" 'stay': open the file, but keep the cursor in the tree win
"
function! s:Bookmark.open(...)
let opts = a:0 ? a:1 : {}
if self.path.isDirectory && !has_key(opts, 'where')
call self.toRoot()
else
let opener = s:Opener.New(self.path, opts)
call opener.open(self)
endif
endfunction
" FUNCTION: Bookmark.openInNewTab(options) {{{3
" Create a new bookmark object with the given name and path object
function! s:Bookmark.openInNewTab(options)
call s:deprecated('Bookmark.openInNewTab', 'is deprecated, use open() instead')
call self.open(a:options)
endfunction
" Function: Bookmark.setPath(path) {{{3
" makes this bookmark point to the given path
function! s:Bookmark.setPath(path)
let self.path = a:path
endfunction
" Function: Bookmark.Sort() {{{3
" Class method that sorts all bookmarks
function! s:Bookmark.Sort()
let CompareFunc = function("s:compareBookmarks")
call sort(s:Bookmark.Bookmarks(), CompareFunc)
endfunction
" Function: Bookmark.str() {{{3
" Get the string that should be rendered in the view for this bookmark
function! s:Bookmark.str()
let pathStrMaxLen = winwidth(s:getTreeWinNum()) - 4 - len(self.name)
if &nu
let pathStrMaxLen = pathStrMaxLen - &numberwidth
endif
let pathStr = self.path.str({'format': 'UI'})
if len(pathStr) > pathStrMaxLen
let pathStr = '<' . strpart(pathStr, len(pathStr) - pathStrMaxLen)
endif
return '>' . self.name . ' ' . pathStr
endfunction
" FUNCTION: Bookmark.toRoot() {{{3
" Make the node for this bookmark the new tree root
function! s:Bookmark.toRoot()
if self.validate()
try
let targetNode = self.getNode(1)
catch /^NERDTree.BookmarkedNodeNotFoundError/
let targetNode = s:TreeFileNode.New(s:Bookmark.BookmarkFor(self.name).path)
endtry
call targetNode.makeRoot()
call s:renderView()
call targetNode.putCursorHere(0, 0)
endif
endfunction
" FUNCTION: Bookmark.ToRoot(name) {{{3
" Make the node for this bookmark the new tree root
function! s:Bookmark.ToRoot(name)
let bookmark = s:Bookmark.BookmarkFor(a:name)
call bookmark.toRoot()
endfunction
"FUNCTION: Bookmark.validate() {{{3
function! s:Bookmark.validate()
if self.path.exists()
return 1
else
call s:Bookmark.CacheBookmarks(1)
call s:renderView()
call s:echo(self.name . "now points to an invalid location. See :help NERDTreeInvalidBookmarks for info.")
return 0
endif
endfunction
" Function: Bookmark.Write() {{{3
" Class method to write all bookmarks to the bookmarks file
function! s:Bookmark.Write()
let bookmarkStrings = []
for i in s:Bookmark.Bookmarks()
call add(bookmarkStrings, i.name . ' ' . i.path.str())
endfor
"add a blank line before the invalid ones
call add(bookmarkStrings, "")
for j in s:Bookmark.InvalidBookmarks()
call add(bookmarkStrings, j)
endfor
call writefile(bookmarkStrings, g:NERDTreeBookmarksFile)
endfunction
"CLASS: KeyMap {{{2
"============================================================
let s:KeyMap = {}
"FUNCTION: KeyMap.All() {{{3
function! s:KeyMap.All()
if !exists("s:keyMaps")
let s:keyMaps = []
endif
return s:keyMaps
endfunction
"FUNCTION: KeyMap.FindFor(key, scope) {{{3
function! s:KeyMap.FindFor(key, scope)
for i in s:KeyMap.All()
if i.key ==# a:key && i.scope ==# a:scope
return i
endif
endfor
return {}
endfunction
"FUNCTION: KeyMap.BindAll() {{{3
function! s:KeyMap.BindAll()
for i in s:KeyMap.All()
call i.bind()
endfor
endfunction
"FUNCTION: KeyMap.bind() {{{3
function! s:KeyMap.bind()
let mapkey = self.key
if mapkey =~? '^\([CM]-\|middlerelease\|2-leftmouse\|leftrelease\)'
let mapkey = '<' . mapkey . '>'
endif
let premap = self.key == "leftrelease" ? " <leftrelease>" : " "
exec 'nnoremap <buffer> <silent> '. mapkey . premap . ':call <SID>KeyMap_Invoke("'. self.key .'")<cr>'
endfunction
"FUNCTION: KeyMap.Remove(key, scope) {{{3
function! s:KeyMap.Remove(key, scope)
let maps = s:KeyMap.All()
for i in range(len(maps))
if maps[i].key ==# a:key && maps[i].scope ==# a:scope
return remove(maps, i)
endif
endfor
endfunction
"FUNCTION: KeyMap.invoke() {{{3
"Call the KeyMaps callback function
function! s:KeyMap.invoke(...)
let Callback = function(self.callback)
if a:0
call Callback(a:1)
else
call Callback()
endif
endfunction
"FUNCTION: KeyMap.Invoke() {{{3
"Find a keymapping for a:key and the current scope invoke it.
"
"Scope is determined as follows:
" * if the cursor is on a dir node then "DirNode"
" * if the cursor is on a file node then "FileNode"
" * if the cursor is on a bookmark then "Bookmark"
"
"If a keymap has the scope of "all" then it will be called if no other keymap
"is found for a:key and the scope.
function! s:KeyMap.Invoke(key)
let node = s:TreeFileNode.GetSelected()
if !empty(node)
"try file node
if !node.path.isDirectory
let km = s:KeyMap.FindFor(a:key, "FileNode")
if !empty(km)
return km.invoke(node)
endif
endif
"try dir node
if node.path.isDirectory
let km = s:KeyMap.FindFor(a:key, "DirNode")
if !empty(km)
return km.invoke(node)
endif
endif
"try generic node
let km = s:KeyMap.FindFor(a:key, "Node")
if !empty(km)
return km.invoke(node)
endif
endif
"try bookmark
let bm = s:Bookmark.GetSelected()
if !empty(bm)
let km = s:KeyMap.FindFor(a:key, "Bookmark")
if !empty(km)
return km.invoke(bm)
endif
endif
"try all
let km = s:KeyMap.FindFor(a:key, "all")
if !empty(km)
return km.invoke()
endif
endfunction
"this is needed since I cant figure out how to invoke dict functions from a
"key map
function! s:KeyMap_Invoke(key)
call s:KeyMap.Invoke(a:key)
endfunction
"FUNCTION: KeyMap.Create(options) {{{3
function! s:KeyMap.Create(options)
let newKeyMap = copy(self)
let opts = extend({'scope': 'all', 'quickhelpText': ''}, copy(a:options))
let newKeyMap.key = opts['key']
let newKeyMap.quickhelpText = opts['quickhelpText']
let newKeyMap.callback = opts['callback']
let newKeyMap.scope = opts['scope']
call s:KeyMap.Add(newKeyMap)
endfunction
"FUNCTION: KeyMap.Add(keymap) {{{3
function! s:KeyMap.Add(keymap)
call s:KeyMap.Remove(a:keymap.key, a:keymap.scope)
call add(s:KeyMap.All(), a:keymap)
endfunction
"CLASS: MenuController {{{2
"============================================================
let s:MenuController = {}
"FUNCTION: MenuController.New(menuItems) {{{3
"create a new menu controller that operates on the given menu items
function! s:MenuController.New(menuItems)
let newMenuController = copy(self)
if a:menuItems[0].isSeparator()
let newMenuController.menuItems = a:menuItems[1:-1]
else
let newMenuController.menuItems = a:menuItems
endif
return newMenuController
endfunction
"FUNCTION: MenuController.showMenu() {{{3
"start the main loop of the menu and get the user to choose/execute a menu
"item
function! s:MenuController.showMenu()
call self._saveOptions()
try
let self.selection = 0
let done = 0
while !done
redraw!
call self._echoPrompt()
let key = nr2char(getchar())
let done = self._handleKeypress(key)
endwhile
finally
call self._restoreOptions()
endtry
if self.selection != -1
let m = self._current()
call m.execute()
endif
endfunction
"FUNCTION: MenuController._echoPrompt() {{{3
function! s:MenuController._echoPrompt()
echo "NERDTree Menu. Use j/k/enter and the shortcuts indicated"
echo "=========================================================="
for i in range(0, len(self.menuItems)-1)
if self.selection == i
echo "> " . self.menuItems[i].text
else
echo " " . self.menuItems[i].text
endif
endfor
endfunction
"FUNCTION: MenuController._current(key) {{{3
"get the MenuItem that is currently selected
function! s:MenuController._current()
return self.menuItems[self.selection]
endfunction
"FUNCTION: MenuController._handleKeypress(key) {{{3
"change the selection (if appropriate) and return 1 if the user has made
"their choice, 0 otherwise
function! s:MenuController._handleKeypress(key)
if a:key == 'j'
call self._cursorDown()
elseif a:key == 'k'
call self._cursorUp()
elseif a:key == nr2char(27) "escape
let self.selection = -1
return 1
elseif a:key == "\r" || a:key == "\n" "enter and ctrl-j
return 1
else
let index = self._nextIndexFor(a:key)
if index != -1
let self.selection = index
if len(self._allIndexesFor(a:key)) == 1
return 1
endif
endif
endif
return 0
endfunction
"FUNCTION: MenuController._allIndexesFor(shortcut) {{{3
"get indexes to all menu items with the given shortcut
function! s:MenuController._allIndexesFor(shortcut)
let toReturn = []
for i in range(0, len(self.menuItems)-1)
if self.menuItems[i].shortcut == a:shortcut
call add(toReturn, i)
endif
endfor
return toReturn
endfunction
"FUNCTION: MenuController._nextIndexFor(shortcut) {{{3
"get the index to the next menu item with the given shortcut, starts from the
"current cursor location and wraps around to the top again if need be
function! s:MenuController._nextIndexFor(shortcut)
for i in range(self.selection+1, len(self.menuItems)-1)
if self.menuItems[i].shortcut == a:shortcut
return i
endif
endfor
for i in range(0, self.selection)
if self.menuItems[i].shortcut == a:shortcut
return i
endif
endfor
return -1
endfunction
"FUNCTION: MenuController._setCmdheight() {{{3
"sets &cmdheight to whatever is needed to display the menu
function! s:MenuController._setCmdheight()
let &cmdheight = len(self.menuItems) + 3
endfunction
"FUNCTION: MenuController._saveOptions() {{{3
"set any vim options that are required to make the menu work (saving their old
"values)
function! s:MenuController._saveOptions()
let self._oldLazyredraw = &lazyredraw
let self._oldCmdheight = &cmdheight
set nolazyredraw
call self._setCmdheight()
endfunction
"FUNCTION: MenuController._restoreOptions() {{{3
"restore the options we saved in _saveOptions()
function! s:MenuController._restoreOptions()
let &cmdheight = self._oldCmdheight
let &lazyredraw = self._oldLazyredraw
endfunction
"FUNCTION: MenuController._cursorDown() {{{3
"move the cursor to the next menu item, skipping separators
function! s:MenuController._cursorDown()
let done = 0
while !done
if self.selection < len(self.menuItems)-1
let self.selection += 1
else
let self.selection = 0
endif
if !self._current().isSeparator()
let done = 1
endif
endwhile
endfunction
"FUNCTION: MenuController._cursorUp() {{{3
"move the cursor to the previous menu item, skipping separators
function! s:MenuController._cursorUp()
let done = 0
while !done
if self.selection > 0
let self.selection -= 1
else
let self.selection = len(self.menuItems)-1
endif
if !self._current().isSeparator()
let done = 1
endif
endwhile
endfunction
"CLASS: MenuItem {{{2
"============================================================
let s:MenuItem = {}
"FUNCTION: MenuItem.All() {{{3
"get all top level menu items
function! s:MenuItem.All()
if !exists("s:menuItems")
let s:menuItems = []
endif
return s:menuItems
endfunction
"FUNCTION: MenuItem.AllEnabled() {{{3
"get all top level menu items that are currently enabled
function! s:MenuItem.AllEnabled()
let toReturn = []
for i in s:MenuItem.All()
if i.enabled()
call add(toReturn, i)
endif
endfor
return toReturn
endfunction
"FUNCTION: MenuItem.Create(options) {{{3
"make a new menu item and add it to the global list
function! s:MenuItem.Create(options)
let newMenuItem = copy(self)
let newMenuItem.text = a:options['text']
let newMenuItem.shortcut = a:options['shortcut']
let newMenuItem.children = []
let newMenuItem.isActiveCallback = -1
if has_key(a:options, 'isActiveCallback')
let newMenuItem.isActiveCallback = a:options['isActiveCallback']
endif
let newMenuItem.callback = -1
if has_key(a:options, 'callback')
let newMenuItem.callback = a:options['callback']
endif
if has_key(a:options, 'parent')
call add(a:options['parent'].children, newMenuItem)
else
call add(s:MenuItem.All(), newMenuItem)
endif
return newMenuItem
endfunction
"FUNCTION: MenuItem.CreateSeparator(options) {{{3
"make a new separator menu item and add it to the global list
function! s:MenuItem.CreateSeparator(options)
let standard_options = { 'text': '--------------------',
\ 'shortcut': -1,
\ 'callback': -1 }
let options = extend(a:options, standard_options, "force")
return s:MenuItem.Create(options)
endfunction
"FUNCTION: MenuItem.CreateSubmenu(options) {{{3
"make a new submenu and add it to global list
function! s:MenuItem.CreateSubmenu(options)
let standard_options = { 'callback': -1 }
let options = extend(a:options, standard_options, "force")
return s:MenuItem.Create(options)
endfunction
"FUNCTION: MenuItem.enabled() {{{3
"return 1 if this menu item should be displayed
"
"delegates off to the isActiveCallback, and defaults to 1 if no callback was
"specified
function! s:MenuItem.enabled()
if self.isActiveCallback != -1
return {self.isActiveCallback}()
endif
return 1
endfunction
"FUNCTION: MenuItem.execute() {{{3
"perform the action behind this menu item, if this menuitem has children then
"display a new menu for them, otherwise deletegate off to the menuitem's
"callback
function! s:MenuItem.execute()
if len(self.children)
let mc = s:MenuController.New(self.children)
call mc.showMenu()
else
if self.callback != -1
call {self.callback}()
endif
endif
endfunction
"FUNCTION: MenuItem.isSeparator() {{{3
"return 1 if this menuitem is a separator
function! s:MenuItem.isSeparator()
return self.callback == -1 && self.children == []
endfunction
"FUNCTION: MenuItem.isSubmenu() {{{3
"return 1 if this menuitem is a submenu
function! s:MenuItem.isSubmenu()
return self.callback == -1 && !empty(self.children)
endfunction
"CLASS: TreeFileNode {{{2
"This class is the parent of the TreeDirNode class and constitures the
"'Component' part of the composite design pattern between the treenode
"classes.
"============================================================
let s:TreeFileNode = {}
"FUNCTION: TreeFileNode.activate(...) {{{3
function! s:TreeFileNode.activate(...)
call self.open(a:0 ? a:1 : {})
endfunction
"FUNCTION: TreeFileNode.bookmark(name) {{{3
"bookmark this node with a:name
function! s:TreeFileNode.bookmark(name)
"if a bookmark exists with the same name and the node is cached then save
"it so we can update its display string
let oldMarkedNode = {}
try
let oldMarkedNode = s:Bookmark.GetNodeForName(a:name, 1)
catch /^NERDTree.BookmarkNotFoundError/
catch /^NERDTree.BookmarkedNodeNotFoundError/
endtry
call s:Bookmark.AddBookmark(a:name, self.path)
call self.path.cacheDisplayString()
call s:Bookmark.Write()
if !empty(oldMarkedNode)
call oldMarkedNode.path.cacheDisplayString()
endif
endfunction
"FUNCTION: TreeFileNode.cacheParent() {{{3
"initializes self.parent if it isnt already
function! s:TreeFileNode.cacheParent()
if empty(self.parent)
let parentPath = self.path.getParent()
if parentPath.equals(self.path)
throw "NERDTree.CannotCacheParentError: already at root"
endif
let self.parent = s:TreeFileNode.New(parentPath)
endif
endfunction
"FUNCTION: TreeFileNode.compareNodes {{{3
"This is supposed to be a class level method but i cant figure out how to
"get func refs to work from a dict..
"
"A class level method that compares two nodes
"
"Args:
"n1, n2: the 2 nodes to compare
function! s:compareNodes(n1, n2)
return a:n1.path.compareTo(a:n2.path)
endfunction
"FUNCTION: TreeFileNode.clearBoomarks() {{{3
function! s:TreeFileNode.clearBoomarks()
for i in s:Bookmark.Bookmarks()
if i.path.equals(self.path)
call i.delete()
end
endfor
call self.path.cacheDisplayString()
endfunction
"FUNCTION: TreeFileNode.copy(dest) {{{3
function! s:TreeFileNode.copy(dest)
call self.path.copy(a:dest)
let newPath = s:Path.New(a:dest)
let parent = b:NERDTreeRoot.findNode(newPath.getParent())
if !empty(parent)
call parent.refresh()
return parent.findNode(newPath)
else
return {}
endif
endfunction
"FUNCTION: TreeFileNode.delete {{{3
"Removes this node from the tree and calls the Delete method for its path obj
function! s:TreeFileNode.delete()
call self.path.delete()
call self.parent.removeChild(self)
endfunction
"FUNCTION: TreeFileNode.displayString() {{{3
"
"Returns a string that specifies how the node should be represented as a
"string
"
"Return:
"a string that can be used in the view to represent this node
function! s:TreeFileNode.displayString()
return self.path.displayString()
endfunction
"FUNCTION: TreeFileNode.equals(treenode) {{{3
"
"Compares this treenode to the input treenode and returns 1 if they are the
"same node.
"
"Use this method instead of == because sometimes when the treenodes contain
"many children, vim seg faults when doing ==
"
"Args:
"treenode: the other treenode to compare to
function! s:TreeFileNode.equals(treenode)
return self.path.str() ==# a:treenode.path.str()
endfunction
"FUNCTION: TreeFileNode.findNode(path) {{{3
"Returns self if this node.path.Equals the given path.
"Returns {} if not equal.
"
"Args:
"path: the path object to compare against
function! s:TreeFileNode.findNode(path)
if a:path.equals(self.path)
return self
endif
return {}
endfunction
"FUNCTION: TreeFileNode.findOpenDirSiblingWithVisibleChildren(direction) {{{3
"
"Finds the next sibling for this node in the indicated direction. This sibling
"must be a directory and may/may not have children as specified.
"
"Args:
"direction: 0 if you want to find the previous sibling, 1 for the next sibling
"
"Return:
"a treenode object or {} if no appropriate sibling could be found
function! s:TreeFileNode.findOpenDirSiblingWithVisibleChildren(direction)
"if we have no parent then we can have no siblings
if self.parent != {}
let nextSibling = self.findSibling(a:direction)
while nextSibling != {}
if nextSibling.path.isDirectory && nextSibling.hasVisibleChildren() && nextSibling.isOpen
return nextSibling
endif
let nextSibling = nextSibling.findSibling(a:direction)
endwhile
endif
return {}
endfunction
"FUNCTION: TreeFileNode.findSibling(direction) {{{3
"
"Finds the next sibling for this node in the indicated direction
"
"Args:
"direction: 0 if you want to find the previous sibling, 1 for the next sibling
"
"Return:
"a treenode object or {} if no sibling could be found
function! s:TreeFileNode.findSibling(direction)
"if we have no parent then we can have no siblings
if self.parent != {}
"get the index of this node in its parents children
let siblingIndx = self.parent.getChildIndex(self.path)
if siblingIndx != -1
"move a long to the next potential sibling node
let siblingIndx = a:direction ==# 1 ? siblingIndx+1 : siblingIndx-1
"keep moving along to the next sibling till we find one that is valid
let numSiblings = self.parent.getChildCount()
while siblingIndx >= 0 && siblingIndx < numSiblings
"if the next node is not an ignored node (i.e. wont show up in the
"view) then return it
if self.parent.children[siblingIndx].path.ignore() ==# 0
return self.parent.children[siblingIndx]
endif
"go to next node
let siblingIndx = a:direction ==# 1 ? siblingIndx+1 : siblingIndx-1
endwhile
endif
endif
return {}
endfunction
"FUNCTION: TreeFileNode.getLineNum(){{{3
"returns the line number this node is rendered on, or -1 if it isnt rendered
function! s:TreeFileNode.getLineNum()
"if the node is the root then return the root line no.
if self.isRoot()
return s:TreeFileNode.GetRootLineNum()
endif
let totalLines = line("$")
"the path components we have matched so far
let pathcomponents = [substitute(b:NERDTreeRoot.path.str({'format': 'UI'}), '/ *$', '', '')]
"the index of the component we are searching for
let curPathComponent = 1
let fullpath = self.path.str({'format': 'UI'})
let lnum = s:TreeFileNode.GetRootLineNum()
while lnum > 0
let lnum = lnum + 1
"have we reached the bottom of the tree?
if lnum ==# totalLines+1
return -1
endif
let curLine = getline(lnum)
let indent = s:indentLevelFor(curLine)
if indent ==# curPathComponent
let curLine = s:stripMarkupFromLine(curLine, 1)
let curPath = join(pathcomponents, '/') . '/' . curLine
if stridx(fullpath, curPath, 0) ==# 0
if fullpath ==# curPath || strpart(fullpath, len(curPath)-1,1) ==# '/'
let curLine = substitute(curLine, '/ *$', '', '')
call add(pathcomponents, curLine)
let curPathComponent = curPathComponent + 1
if fullpath ==# curPath
return lnum
endif
endif
endif
endif
endwhile
return -1
endfunction
"FUNCTION: TreeFileNode.GetRootForTab(){{{3
"get the root node for this tab
function! s:TreeFileNode.GetRootForTab()
if s:treeExistsForTab()
return getbufvar(t:NERDTreeBufName, 'NERDTreeRoot')
end
return {}
endfunction
"FUNCTION: TreeFileNode.GetRootLineNum(){{{3
"gets the line number of the root node
function! s:TreeFileNode.GetRootLineNum()
let rootLine = 1
while getline(rootLine) !~# '^\(/\|<\)'
let rootLine = rootLine + 1
endwhile
return rootLine
endfunction
"FUNCTION: TreeFileNode.GetSelected() {{{3
"gets the treenode that the cursor is currently over
function! s:TreeFileNode.GetSelected()
try
let path = s:getPath(line("."))
if path ==# {}
return {}
endif
return b:NERDTreeRoot.findNode(path)
catch /NERDTree/
return {}
endtry
endfunction
"FUNCTION: TreeFileNode.isVisible() {{{3
"returns 1 if this node should be visible according to the tree filters and
"hidden file filters (and their on/off status)
function! s:TreeFileNode.isVisible()
return !self.path.ignore()
endfunction
"FUNCTION: TreeFileNode.isRoot() {{{3
"returns 1 if this node is b:NERDTreeRoot
function! s:TreeFileNode.isRoot()
if !s:treeExistsForBuf()
throw "NERDTree.NoTreeError: No tree exists for the current buffer"
endif
return self.equals(b:NERDTreeRoot)
endfunction
"FUNCTION: TreeFileNode.makeRoot() {{{3
"Make this node the root of the tree
function! s:TreeFileNode.makeRoot()
if self.path.isDirectory
let b:NERDTreeRoot = self
else
call self.cacheParent()
let b:NERDTreeRoot = self.parent
endif
call b:NERDTreeRoot.open()
"change dir to the dir of the new root if instructed to
if g:NERDTreeChDirMode ==# 2
exec "cd " . b:NERDTreeRoot.path.str({'format': 'Edit'})
endif
endfunction
"FUNCTION: TreeFileNode.New(path) {{{3
"Returns a new TreeNode object with the given path and parent
"
"Args:
"path: a path object representing the full filesystem path to the file/dir that the node represents
function! s:TreeFileNode.New(path)
if a:path.isDirectory
return s:TreeDirNode.New(a:path)
else
let newTreeNode = copy(self)
let newTreeNode.path = a:path
let newTreeNode.parent = {}
return newTreeNode
endif
endfunction
"FUNCTION: TreeFileNode.open() {{{3
function! s:TreeFileNode.open(...)
echomsg self.path.str()
let opts = a:0 ? a:1 : {}
let opener = s:Opener.New(self.path, opts)
call opener.open(self)
endfunction
"FUNCTION: TreeFileNode.openSplit() {{{3
"Open this node in a new window
function! s:TreeFileNode.openSplit()
call s:deprecated('TreeFileNode.openSplit', 'is deprecated, use .open() instead.')
call self.open({'where': 'h'})
endfunction
"FUNCTION: TreeFileNode.openVSplit() {{{3
"Open this node in a new vertical window
function! s:TreeFileNode.openVSplit()
call s:deprecated('TreeFileNode.openVSplit', 'is deprecated, use .open() instead.')
call self.open({'where': 'v'})
endfunction
"FUNCTION: TreeFileNode.openInNewTab(options) {{{3
function! s:TreeFileNode.openInNewTab(options)
echomsg 'TreeFileNode.openInNewTab is deprecated'
call self.open(extend({'where': 't'}, a:options))
endfunction
"FUNCTION: TreeFileNode.putCursorHere(isJump, recurseUpward){{{3
"Places the cursor on the line number this node is rendered on
"
"Args:
"isJump: 1 if this cursor movement should be counted as a jump by vim
"recurseUpward: try to put the cursor on the parent if the this node isnt
"visible
function! s:TreeFileNode.putCursorHere(isJump, recurseUpward)
let ln = self.getLineNum()
if ln != -1
if a:isJump
mark '
endif
call cursor(ln, col("."))
else
if a:recurseUpward
let node = self
while node != {} && node.getLineNum() ==# -1
let node = node.parent
call node.open()
endwhile
call s:renderView()
call node.putCursorHere(a:isJump, 0)
endif
endif
endfunction
"FUNCTION: TreeFileNode.refresh() {{{3
function! s:TreeFileNode.refresh()
call self.path.refresh()
endfunction
"FUNCTION: TreeFileNode.rename() {{{3
"Calls the rename method for this nodes path obj
function! s:TreeFileNode.rename(newName)
let newName = substitute(a:newName, '\(\\\|\/\)$', '', '')
call self.path.rename(newName)
call self.parent.removeChild(self)
let parentPath = self.path.getParent()
let newParent = b:NERDTreeRoot.findNode(parentPath)
if newParent != {}
call newParent.createChild(self.path, 1)
call newParent.refresh()
endif
endfunction
"FUNCTION: TreeFileNode.renderToString {{{3
"returns a string representation for this tree to be rendered in the view
function! s:TreeFileNode.renderToString()
return self._renderToString(0, 0, [], self.getChildCount() ==# 1)
endfunction
"Args:
"depth: the current depth in the tree for this call
"drawText: 1 if we should actually draw the line for this node (if 0 then the
"child nodes are rendered only)
"vertMap: a binary array that indicates whether a vertical bar should be draw
"for each depth in the tree
"isLastChild:true if this curNode is the last child of its parent
function! s:TreeFileNode._renderToString(depth, drawText, vertMap, isLastChild)
let output = ""
if a:drawText ==# 1
let treeParts = ''
"get all the leading spaces and vertical tree parts for this line
if a:depth > 1
for j in a:vertMap[0:-2]
if g:NERDTreeDirArrows
let treeParts = treeParts . ' '
else
if j ==# 1
let treeParts = treeParts . '| '
else
let treeParts = treeParts . ' '
endif
endif
endfor
endif
"get the last vertical tree part for this line which will be different
"if this node is the last child of its parent
if !g:NERDTreeDirArrows
if a:isLastChild
let treeParts = treeParts . '`'
else
let treeParts = treeParts . '|'
endif
endif
"smack the appropriate dir/file symbol on the line before the file/dir
"name itself
if self.path.isDirectory
if self.isOpen
if g:NERDTreeDirArrows
let treeParts = treeParts . '▾ '
else
let treeParts = treeParts . '~'
endif
else
if g:NERDTreeDirArrows
let treeParts = treeParts . '▸ '
else
let treeParts = treeParts . '+'
endif
endif
else
if g:NERDTreeDirArrows
let treeParts = treeParts . ' '
else
let treeParts = treeParts . '-'
endif
endif
let line = treeParts . self.displayString()
let output = output . line . "\n"
endif
"if the node is an open dir, draw its children
if self.path.isDirectory ==# 1 && self.isOpen ==# 1
let childNodesToDraw = self.getVisibleChildren()
if len(childNodesToDraw) > 0
"draw all the nodes children except the last
let lastIndx = len(childNodesToDraw)-1
if lastIndx > 0
for i in childNodesToDraw[0:lastIndx-1]
let output = output . i._renderToString(a:depth + 1, 1, add(copy(a:vertMap), 1), 0)
endfor
endif
"draw the last child, indicating that it IS the last
let output = output . childNodesToDraw[lastIndx]._renderToString(a:depth + 1, 1, add(copy(a:vertMap), 0), 1)
endif
endif
return output
endfunction
"CLASS: TreeDirNode {{{2
"This class is a child of the TreeFileNode class and constitutes the
"'Composite' part of the composite design pattern between the treenode
"classes.
"============================================================
let s:TreeDirNode = copy(s:TreeFileNode)
"FUNCTION: TreeDirNode.AbsoluteTreeRoot(){{{3
"class method that returns the highest cached ancestor of the current root
function! s:TreeDirNode.AbsoluteTreeRoot()
let currentNode = b:NERDTreeRoot
while currentNode.parent != {}
let currentNode = currentNode.parent
endwhile
return currentNode
endfunction
"FUNCTION: TreeDirNode.activate([options]) {{{3
unlet s:TreeDirNode.activate
function! s:TreeDirNode.activate(...)
let opts = a:0 ? a:1 : {}
call self.toggleOpen(opts)
call s:renderView()
call self.putCursorHere(0, 0)
endfunction
"FUNCTION: TreeDirNode.addChild(treenode, inOrder) {{{3
"Adds the given treenode to the list of children for this node
"
"Args:
"-treenode: the node to add
"-inOrder: 1 if the new node should be inserted in sorted order
function! s:TreeDirNode.addChild(treenode, inOrder)
call add(self.children, a:treenode)
let a:treenode.parent = self
if a:inOrder
call self.sortChildren()
endif
endfunction
"FUNCTION: TreeDirNode.close() {{{3
"Closes this directory
function! s:TreeDirNode.close()
let self.isOpen = 0
endfunction
"FUNCTION: TreeDirNode.closeChildren() {{{3
"Closes all the child dir nodes of this node
function! s:TreeDirNode.closeChildren()
for i in self.children
if i.path.isDirectory
call i.close()
call i.closeChildren()
endif
endfor
endfunction
"FUNCTION: TreeDirNode.createChild(path, inOrder) {{{3
"Instantiates a new child node for this node with the given path. The new
"nodes parent is set to this node.
"
"Args:
"path: a Path object that this node will represent/contain
"inOrder: 1 if the new node should be inserted in sorted order
"
"Returns:
"the newly created node
function! s:TreeDirNode.createChild(path, inOrder)
let newTreeNode = s:TreeFileNode.New(a:path)
call self.addChild(newTreeNode, a:inOrder)
return newTreeNode
endfunction
"FUNCTION: TreeDirNode.findNode(path) {{{3
"Will find one of the children (recursively) that has the given path
"
"Args:
"path: a path object
unlet s:TreeDirNode.findNode
function! s:TreeDirNode.findNode(path)
if a:path.equals(self.path)
return self
endif
if stridx(a:path.str(), self.path.str(), 0) ==# -1
return {}
endif
if self.path.isDirectory
for i in self.children
let retVal = i.findNode(a:path)
if retVal != {}
return retVal
endif
endfor
endif
return {}
endfunction
"FUNCTION: TreeDirNode.getChildCount() {{{3
"Returns the number of children this node has
function! s:TreeDirNode.getChildCount()
return len(self.children)
endfunction
"FUNCTION: TreeDirNode.getChild(path) {{{3
"Returns child node of this node that has the given path or {} if no such node
"exists.
"
"This function doesnt not recurse into child dir nodes
"
"Args:
"path: a path object
function! s:TreeDirNode.getChild(path)
if stridx(a:path.str(), self.path.str(), 0) ==# -1
return {}
endif
let index = self.getChildIndex(a:path)
if index ==# -1
return {}
else
return self.children[index]
endif
endfunction
"FUNCTION: TreeDirNode.getChildByIndex(indx, visible) {{{3
"returns the child at the given index
"Args:
"indx: the index to get the child from
"visible: 1 if only the visible children array should be used, 0 if all the
"children should be searched.
function! s:TreeDirNode.getChildByIndex(indx, visible)
let array_to_search = a:visible? self.getVisibleChildren() : self.children
if a:indx > len(array_to_search)
throw "NERDTree.InvalidArgumentsError: Index is out of bounds."
endif
return array_to_search[a:indx]
endfunction
"FUNCTION: TreeDirNode.getChildIndex(path) {{{3
"Returns the index of the child node of this node that has the given path or
"-1 if no such node exists.
"
"This function doesnt not recurse into child dir nodes
"
"Args:
"path: a path object
function! s:TreeDirNode.getChildIndex(path)
if stridx(a:path.str(), self.path.str(), 0) ==# -1
return -1
endif
"do a binary search for the child
let a = 0
let z = self.getChildCount()
while a < z
let mid = (a+z)/2
let diff = a:path.compareTo(self.children[mid].path)
if diff ==# -1
let z = mid
elseif diff ==# 1
let a = mid+1
else
return mid
endif
endwhile
return -1
endfunction
"FUNCTION: TreeDirNode.GetSelected() {{{3
"Returns the current node if it is a dir node, or else returns the current
"nodes parent
unlet s:TreeDirNode.GetSelected
function! s:TreeDirNode.GetSelected()
let currentDir = s:TreeFileNode.GetSelected()
if currentDir != {} && !currentDir.isRoot()
if currentDir.path.isDirectory ==# 0
let currentDir = currentDir.parent
endif
endif
return currentDir
endfunction
"FUNCTION: TreeDirNode.getVisibleChildCount() {{{3
"Returns the number of visible children this node has
function! s:TreeDirNode.getVisibleChildCount()
return len(self.getVisibleChildren())
endfunction
"FUNCTION: TreeDirNode.getVisibleChildren() {{{3
"Returns a list of children to display for this node, in the correct order
"
"Return:
"an array of treenodes
function! s:TreeDirNode.getVisibleChildren()
let toReturn = []
for i in self.children
if i.path.ignore() ==# 0
call add(toReturn, i)
endif
endfor
return toReturn
endfunction
"FUNCTION: TreeDirNode.hasVisibleChildren() {{{3
"returns 1 if this node has any childre, 0 otherwise..
function! s:TreeDirNode.hasVisibleChildren()
return self.getVisibleChildCount() != 0
endfunction
"FUNCTION: TreeDirNode._initChildren() {{{3
"Removes all childen from this node and re-reads them
"
"Args:
"silent: 1 if the function should not echo any "please wait" messages for
"large directories
"
"Return: the number of child nodes read
function! s:TreeDirNode._initChildren(silent)
"remove all the current child nodes
let self.children = []
"get an array of all the files in the nodes dir
let dir = self.path
let globDir = dir.str({'format': 'Glob'})
let filesStr = globpath(globDir, '*') . "\n" . globpath(globDir, '.*')
let files = split(filesStr, "\n")
if !a:silent && len(files) > g:NERDTreeNotificationThreshold
call s:echo("Please wait, caching a large dir ...")
endif
let invalidFilesFound = 0
for i in files
"filter out the .. and . directories
"Note: we must match .. AND ../ cos sometimes the globpath returns
"../ for path with strange chars (eg $)
if i !~# '\/\.\.\/\?$' && i !~# '\/\.\/\?$'
"put the next file in a new node and attach it
try
let path = s:Path.New(i)
call self.createChild(path, 0)
catch /^NERDTree.\(InvalidArguments\|InvalidFiletype\)Error/
let invalidFilesFound += 1
endtry
endif
endfor
call self.sortChildren()
if !a:silent && len(files) > g:NERDTreeNotificationThreshold
call s:echo("Please wait, caching a large dir ... DONE (". self.getChildCount() ." nodes cached).")
endif
if invalidFilesFound
call s:echoWarning(invalidFilesFound . " file(s) could not be loaded into the NERD tree")
endif
return self.getChildCount()
endfunction
"FUNCTION: TreeDirNode.New(path) {{{3
"Returns a new TreeNode object with the given path and parent
"
"Args:
"path: a path object representing the full filesystem path to the file/dir that the node represents
unlet s:TreeDirNode.New
function! s:TreeDirNode.New(path)
if a:path.isDirectory != 1
throw "NERDTree.InvalidArgumentsError: A TreeDirNode object must be instantiated with a directory Path object."
endif
let newTreeNode = copy(self)
let newTreeNode.path = a:path
let newTreeNode.isOpen = 0
let newTreeNode.children = []
let newTreeNode.parent = {}
return newTreeNode
endfunction
"FUNCTION: TreeDirNode.open([opts]) {{{3
"Open the dir in the current tree or in a new tree elsewhere.
"
"If opening in the current tree, return the number of cached nodes.
unlet s:TreeDirNode.open
function! s:TreeDirNode.open(...)
let opts = a:0 ? a:1 : {}
if has_key(opts, 'where') && !empty(opts['where'])
let opener = s:Opener.New(self.path, opts)
call opener.open(self)
else
let self.isOpen = 1
if self.children ==# []
return self._initChildren(0)
else
return 0
endif
endif
endfunction
" FUNCTION: TreeDirNode.openExplorer() {{{3
" opens an explorer window for this node in the previous window (could be a
" nerd tree or a netrw)
function! s:TreeDirNode.openExplorer()
call self.open({'where': 'p'})
endfunction
"FUNCTION: TreeDirNode.openInNewTab(options) {{{3
unlet s:TreeDirNode.openInNewTab
function! s:TreeDirNode.openInNewTab(options)
call s:deprecated('TreeDirNode.openInNewTab', 'is deprecated, use open() instead')
call self.open({'where': 't'})
endfunction
"FUNCTION: TreeDirNode._openInNewTab() {{{3
function! s:TreeDirNode._openInNewTab()
tabnew
call s:initNerdTree(self.path.str())
endfunction
"FUNCTION: TreeDirNode.openRecursively() {{{3
"Opens this treenode and all of its children whose paths arent 'ignored'
"because of the file filters.
"
"This method is actually a wrapper for the OpenRecursively2 method which does
"the work.
function! s:TreeDirNode.openRecursively()
call self._openRecursively2(1)
endfunction
"FUNCTION: TreeDirNode._openRecursively2() {{{3
"Opens this all children of this treenode recursively if either:
" *they arent filtered by file filters
" *a:forceOpen is 1
"
"Args:
"forceOpen: 1 if this node should be opened regardless of file filters
function! s:TreeDirNode._openRecursively2(forceOpen)
if self.path.ignore() ==# 0 || a:forceOpen
let self.isOpen = 1
if self.children ==# []
call self._initChildren(1)
endif
for i in self.children
if i.path.isDirectory ==# 1
call i._openRecursively2(0)
endif
endfor
endif
endfunction
"FUNCTION: TreeDirNode.refresh() {{{3
unlet s:TreeDirNode.refresh
function! s:TreeDirNode.refresh()
call self.path.refresh()
"if this node was ever opened, refresh its children
if self.isOpen || !empty(self.children)
"go thru all the files/dirs under this node
let newChildNodes = []
let invalidFilesFound = 0
let dir = self.path
let globDir = dir.str({'format': 'Glob'})
let filesStr = globpath(globDir, '*') . "\n" . globpath(globDir, '.*')
let files = split(filesStr, "\n")
for i in files
"filter out the .. and . directories
"Note: we must match .. AND ../ cos sometimes the globpath returns
"../ for path with strange chars (eg $)
if i !~# '\/\.\.\/\?$' && i !~# '\/\.\/\?$'
try
"create a new path and see if it exists in this nodes children
let path = s:Path.New(i)
let newNode = self.getChild(path)
if newNode != {}
call newNode.refresh()
call add(newChildNodes, newNode)
"the node doesnt exist so create it
else
let newNode = s:TreeFileNode.New(path)
let newNode.parent = self
call add(newChildNodes, newNode)
endif
catch /^NERDTree.InvalidArgumentsError/
let invalidFilesFound = 1
endtry
endif
endfor
"swap this nodes children out for the children we just read/refreshed
let self.children = newChildNodes
call self.sortChildren()
if invalidFilesFound
call s:echoWarning("some files could not be loaded into the NERD tree")
endif
endif
endfunction
"FUNCTION: TreeDirNode.reveal(path) {{{3
"reveal the given path, i.e. cache and open all treenodes needed to display it
"in the UI
function! s:TreeDirNode.reveal(path)
if !a:path.isUnder(self.path)
throw "NERDTree.InvalidArgumentsError: " . a:path.str() . " should be under " . self.path.str()
endif
call self.open()
if self.path.equals(a:path.getParent())
let n = self.findNode(a:path)
call s:renderView()
call n.putCursorHere(1,0)
return
endif
let p = a:path
while !p.getParent().equals(self.path)
let p = p.getParent()
endwhile
let n = self.findNode(p)
call n.reveal(a:path)
endfunction
"FUNCTION: TreeDirNode.removeChild(treenode) {{{3
"
"Removes the given treenode from this nodes set of children
"
"Args:
"treenode: the node to remove
"
"Throws a NERDTree.ChildNotFoundError if the given treenode is not found
function! s:TreeDirNode.removeChild(treenode)
for i in range(0, self.getChildCount()-1)
if self.children[i].equals(a:treenode)
call remove(self.children, i)
return
endif
endfor
throw "NERDTree.ChildNotFoundError: child node was not found"
endfunction
"FUNCTION: TreeDirNode.sortChildren() {{{3
"
"Sorts the children of this node according to alphabetical order and the
"directory priority.
"
function! s:TreeDirNode.sortChildren()
let CompareFunc = function("s:compareNodes")
call sort(self.children, CompareFunc)
endfunction
"FUNCTION: TreeDirNode.toggleOpen([options]) {{{3
"Opens this directory if it is closed and vice versa
function! s:TreeDirNode.toggleOpen(...)
let opts = a:0 ? a:1 : {}
if self.isOpen ==# 1
call self.close()
else
call self.open(opts)
endif
endfunction
"FUNCTION: TreeDirNode.transplantChild(newNode) {{{3
"Replaces the child of this with the given node (where the child node's full
"path matches a:newNode's fullpath). The search for the matching node is
"non-recursive
"
"Arg:
"newNode: the node to graft into the tree
function! s:TreeDirNode.transplantChild(newNode)
for i in range(0, self.getChildCount()-1)
if self.children[i].equals(a:newNode)
let self.children[i] = a:newNode
let a:newNode.parent = self
break
endif
endfor
endfunction
"============================================================
"CLASS: Opener {{{2
"============================================================
let s:Opener = {}
"FUNCTION: Opener._checkToCloseTree(newtab) {{{3
"Check the class options and global options (i.e. NERDTreeQuitOnOpen) to see
"if the tree should be closed now.
"
"Args:
"a:newtab - boolean. If set, only close the tree now if we are opening the
"target in a new tab. This is needed because we have to close tree before we
"leave the tab
function! s:Opener._checkToCloseTree(newtab)
if self._keepopen
return
endif
if (a:newtab && self._where == 't') || !a:newtab
call s:closeTreeIfQuitOnOpen()
endif
endfunction
"FUNCTION: Opener._gotoTargetWin() {{{3
function! s:Opener._gotoTargetWin()
if b:NERDTreeType ==# "secondary"
if self._where == 'v'
vsplit
elseif self._where == 'h'
split
elseif self._where == 't'
tabnew
endif
else
call self._checkToCloseTree(1)
if self._where == 'v'
call self._newVSplit()
elseif self._where == 'h'
call self._newSplit()
elseif self._where == 't'
tabnew
elseif self._where == 'p'
call self._previousWindow()
endif
call self._checkToCloseTree(0)
endif
endfunction
"FUNCTION: Opener.New(path, opts) {{{3
"Args:
"
"a:path: The path object that is to be opened.
"
"a:opts:
"
"A dictionary containing the following keys (all optional):
" 'where': Specifies whether the node should be opened in new split/tab or in
" the previous window. Can be either 'v' or 'h' or 't' (for open in
" new tab)
" 'reuse': if a window is displaying the file then jump the cursor there
" 'keepopen': dont close the tree window
" 'stay': open the file, but keep the cursor in the tree win
function! s:Opener.New(path, opts)
let newObj = copy(self)
let newObj._path = a:path
let newObj._stay = s:has_opt(a:opts, 'stay')
let newObj._reuse = s:has_opt(a:opts, 'reuse')
let newObj._keepopen = s:has_opt(a:opts, 'keepopen')
let newObj._where = has_key(a:opts, 'where') ? a:opts['where'] : ''
let newObj._treetype = b:NERDTreeType
call newObj._saveCursorPos()
return newObj
endfunction
"FUNCTION: Opener._newSplit() {{{3
function! s:Opener._newSplit()
" Save the user's settings for splitbelow and splitright
let savesplitbelow=&splitbelow
let savesplitright=&splitright
" 'there' will be set to a command to move from the split window
" back to the explorer window
"
" 'back' will be set to a command to move from the explorer window
" back to the newly split window
"
" 'right' and 'below' will be set to the settings needed for
" splitbelow and splitright IF the explorer is the only window.
"
let there= g:NERDTreeWinPos ==# "left" ? "wincmd h" : "wincmd l"
let back = g:NERDTreeWinPos ==# "left" ? "wincmd l" : "wincmd h"
let right= g:NERDTreeWinPos ==# "left"
let below=0
" Attempt to go to adjacent window
call s:exec(back)
let onlyOneWin = (winnr("$") ==# 1)
" If no adjacent window, set splitright and splitbelow appropriately
if onlyOneWin
let &splitright=right
let &splitbelow=below
else
" found adjacent window - invert split direction
let &splitright=!right
let &splitbelow=!below
endif
let splitMode = onlyOneWin ? "vertical" : ""
" Open the new window
try
exec(splitMode." sp ")
catch /^Vim\%((\a\+)\)\=:E37/
call s:putCursorInTreeWin()
throw "NERDTree.FileAlreadyOpenAndModifiedError: ". self._path.str() ." is already open and modified."
catch /^Vim\%((\a\+)\)\=:/
"do nothing
endtry
"resize the tree window if no other window was open before
if onlyOneWin
let size = exists("b:NERDTreeOldWindowSize") ? b:NERDTreeOldWindowSize : g:NERDTreeWinSize
call s:exec(there)
exec("silent ". splitMode ." resize ". size)
call s:exec('wincmd p')
endif
" Restore splitmode settings
let &splitbelow=savesplitbelow
let &splitright=savesplitright
endfunction
"FUNCTION: Opener._newVSplit() {{{3
function! s:Opener._newVSplit()
let winwidth = winwidth(".")
if winnr("$")==#1
let winwidth = g:NERDTreeWinSize
endif
call s:exec("wincmd p")
vnew
"resize the nerd tree back to the original size
call s:putCursorInTreeWin()
exec("silent vertical resize ". winwidth)
call s:exec('wincmd p')
endfunction
"FUNCTION: Opener.open(target) {{{3
function! s:Opener.open(target)
if self._path.isDirectory
call self._openDirectory(a:target)
else
call self._openFile()
endif
endfunction
"FUNCTION: Opener._openFile() {{{3
function! s:Opener._openFile()
if self._reuse && self._reuseWindow()
return
endif
call self._gotoTargetWin()
if self._treetype ==# "secondary"
call self._path.edit()
else
call self._path.edit()
if self._stay
call self._restoreCursorPos()
endif
endif
endfunction
"FUNCTION: Opener._openDirectory(node) {{{3
function! s:Opener._openDirectory(node)
if self._treetype ==# "secondary"
call self._gotoTargetWin()
call s:initNerdTreeInPlace(a:node.path.str())
else
call self._gotoTargetWin()
if empty(self._where)
call a:node.makeRoot()
call s:renderView()
call a:node.putCursorHere(0, 0)
elseif self._where == 't'
call s:initNerdTree(a:node.path.str())
else
call s:initNerdTreeInPlace(a:node.path.str())
endif
endif
endfunction
"FUNCTION: Opener._previousWindow() {{{3
function! s:Opener._previousWindow()
if !s:isWindowUsable(winnr("#")) && s:firstUsableWindow() ==# -1
call self._newSplit()
else
try
if !s:isWindowUsable(winnr("#"))
call s:exec(s:firstUsableWindow() . "wincmd w")
else
call s:exec('wincmd p')
endif
exec ("edit " . self._path.str({'format': 'Edit'}))
catch /^Vim\%((\a\+)\)\=:E37/
call s:putCursorInTreeWin()
throw "NERDTree.FileAlreadyOpenAndModifiedError: ". self._path.str() ." is already open and modified."
catch /^Vim\%((\a\+)\)\=:/
echo v:exception
endtry
endif
endfunction
"FUNCTION: Opener._restoreCursorPos(){{{3
function! s:Opener._restoreCursorPos()
call s:exec('normal ' . self._tabnr . 'gt')
call s:exec(bufwinnr(self._bufnr) . 'wincmd w')
endfunction
"FUNCTION: Opener._reuseWindow(){{{3
"put the cursor in the first window we find for this file
"
"return 1 if we were successful
function! s:Opener._reuseWindow()
"check the current tab for the window
let winnr = bufwinnr('^' . self._path.str() . '$')
if winnr != -1
call s:exec(winnr . "wincmd w")
call self._checkToCloseTree(0)
return 1
else
"check other tabs
let tabnr = self._path.tabnr()
if tabnr
call self._checkToCloseTree(1)
call s:exec('normal! ' . tabnr . 'gt')
let winnr = bufwinnr('^' . self._path.str() . '$')
call s:exec(winnr . "wincmd w")
return 1
endif
endif
return 0
endfunction
"FUNCTION: Opener._saveCursorPos(){{{3
function! s:Opener._saveCursorPos()
let self._bufnr = bufnr("")
let self._tabnr = tabpagenr()
endfunction
"CLASS: Path {{{2
"============================================================
let s:Path = {}
"FUNCTION: Path.AbsolutePathFor(str) {{{3
function! s:Path.AbsolutePathFor(str)
let prependCWD = 0
if s:running_windows
let prependCWD = a:str !~# '^.:\(\\\|\/\)' && a:str !~# '^\(\\\\\|\/\/\)'
else
let prependCWD = a:str !~# '^/'
endif
let toReturn = a:str
if prependCWD
let toReturn = getcwd() . s:Path.Slash() . a:str
endif
return toReturn
endfunction
"FUNCTION: Path.bookmarkNames() {{{3
function! s:Path.bookmarkNames()
if !exists("self._bookmarkNames")
call self.cacheDisplayString()
endif
return self._bookmarkNames
endfunction
"FUNCTION: Path.cacheDisplayString() {{{3
function! s:Path.cacheDisplayString()
let self.cachedDisplayString = self.getLastPathComponent(1)
if self.isExecutable
let self.cachedDisplayString = self.cachedDisplayString . '*'
endif
let self._bookmarkNames = []
for i in s:Bookmark.Bookmarks()
if i.path.equals(self)
call add(self._bookmarkNames, i.name)
endif
endfor
if !empty(self._bookmarkNames)
let self.cachedDisplayString .= ' {' . join(self._bookmarkNames) . '}'
endif
if self.isSymLink
let self.cachedDisplayString .= ' -> ' . self.symLinkDest
endif
if self.isReadOnly
let self.cachedDisplayString .= ' [RO]'
endif
endfunction
"FUNCTION: Path.changeToDir() {{{3
function! s:Path.changeToDir()
let dir = self.str({'format': 'Cd'})
if self.isDirectory ==# 0
let dir = self.getParent().str({'format': 'Cd'})
endif
try
execute "cd " . dir
call s:echo("CWD is now: " . getcwd())
catch
throw "NERDTree.PathChangeError: cannot change CWD to " . dir
endtry
endfunction
"FUNCTION: Path.compareTo() {{{3
"
"Compares this Path to the given path and returns 0 if they are equal, -1 if
"this Path is "less than" the given path, or 1 if it is "greater".
"
"Args:
"path: the path object to compare this to
"
"Return:
"1, -1 or 0
function! s:Path.compareTo(path)
let thisPath = self.getLastPathComponent(1)
let thatPath = a:path.getLastPathComponent(1)
"if the paths are the same then clearly we return 0
if thisPath ==# thatPath
return 0
endif
let thisSS = self.getSortOrderIndex()
let thatSS = a:path.getSortOrderIndex()
"compare the sort sequences, if they are different then the return
"value is easy
if thisSS < thatSS
return -1
elseif thisSS > thatSS
return 1
else
"if the sort sequences are the same then compare the paths
"alphabetically
let pathCompare = g:NERDTreeCaseSensitiveSort ? thisPath <# thatPath : thisPath <? thatPath
if pathCompare
return -1
else
return 1
endif
endif
endfunction
"FUNCTION: Path.Create(fullpath) {{{3
"
"Factory method.
"
"Creates a path object with the given path. The path is also created on the
"filesystem. If the path already exists, a NERDTree.Path.Exists exception is
"thrown. If any other errors occur, a NERDTree.Path exception is thrown.
"
"Args:
"fullpath: the full filesystem path to the file/dir to create
function! s:Path.Create(fullpath)
"bail if the a:fullpath already exists
if isdirectory(a:fullpath) || filereadable(a:fullpath)
throw "NERDTree.CreatePathError: Directory Exists: '" . a:fullpath . "'"
endif
try
"if it ends with a slash, assume its a dir create it
if a:fullpath =~# '\(\\\|\/\)$'
"whack the trailing slash off the end if it exists
let fullpath = substitute(a:fullpath, '\(\\\|\/\)$', '', '')
call mkdir(fullpath, 'p')
"assume its a file and create
else
call writefile([], a:fullpath)
endif
catch
throw "NERDTree.CreatePathError: Could not create path: '" . a:fullpath . "'"
endtry
return s:Path.New(a:fullpath)
endfunction
"FUNCTION: Path.copy(dest) {{{3
"
"Copies the file/dir represented by this Path to the given location
"
"Args:
"dest: the location to copy this dir/file to
function! s:Path.copy(dest)
if !s:Path.CopyingSupported()
throw "NERDTree.CopyingNotSupportedError: Copying is not supported on this OS"
endif
let dest = s:Path.WinToUnixPath(a:dest)
let cmd = g:NERDTreeCopyCmd . " " . escape(self.str(), s:escape_chars) . " " . escape(dest, s:escape_chars)
let success = system(cmd)
if success != 0
throw "NERDTree.CopyError: Could not copy ''". self.str() ."'' to: '" . a:dest . "'"
endif
endfunction
"FUNCTION: Path.CopyingSupported() {{{3
"
"returns 1 if copying is supported for this OS
function! s:Path.CopyingSupported()
return exists('g:NERDTreeCopyCmd')
endfunction
"FUNCTION: Path.copyingWillOverwrite(dest) {{{3
"
"returns 1 if copy this path to the given location will cause files to
"overwritten
"
"Args:
"dest: the location this path will be copied to
function! s:Path.copyingWillOverwrite(dest)
if filereadable(a:dest)
return 1
endif
if isdirectory(a:dest)
let path = s:Path.JoinPathStrings(a:dest, self.getLastPathComponent(0))
if filereadable(path)
return 1
endif
endif
endfunction
"FUNCTION: Path.delete() {{{3
"
"Deletes the file represented by this path.
"Deletion of directories is not supported
"
"Throws NERDTree.Path.Deletion exceptions
function! s:Path.delete()
if self.isDirectory
let cmd = g:NERDTreeRemoveDirCmd . self.str({'escape': 1})
let success = system(cmd)
if v:shell_error != 0
throw "NERDTree.PathDeletionError: Could not delete directory: '" . self.str() . "'"
endif
else
let success = delete(self.str())
if success != 0
throw "NERDTree.PathDeletionError: Could not delete file: '" . self.str() . "'"
endif
endif
"delete all bookmarks for this path
for i in self.bookmarkNames()
let bookmark = s:Bookmark.BookmarkFor(i)
call bookmark.delete()
endfor
endfunction
"FUNCTION: Path.displayString() {{{3
"
"Returns a string that specifies how the path should be represented as a
"string
function! s:Path.displayString()
if self.cachedDisplayString ==# ""
call self.cacheDisplayString()
endif
return self.cachedDisplayString
endfunction
"FUNCTION: Path.edit() {{{3
function! s:Path.edit()
exec "edit " . self.str({'format': 'Edit'})
endfunction
"FUNCTION: Path.extractDriveLetter(fullpath) {{{3
"
"If running windows, cache the drive letter for this path
function! s:Path.extractDriveLetter(fullpath)
if s:running_windows
if a:fullpath =~ '^\(\\\\\|\/\/\)'
"For network shares, the 'drive' consists of the first two parts of the path, i.e. \\boxname\share
let self.drive = substitute(a:fullpath, '^\(\(\\\\\|\/\/\)[^\\\/]*\(\\\|\/\)[^\\\/]*\).*', '\1', '')
let self.drive = substitute(self.drive, '/', '\', "g")
else
let self.drive = substitute(a:fullpath, '\(^[a-zA-Z]:\).*', '\1', '')
endif
else
let self.drive = ''
endif
endfunction
"FUNCTION: Path.exists() {{{3
"return 1 if this path points to a location that is readable or is a directory
function! s:Path.exists()
let p = self.str()
return filereadable(p) || isdirectory(p)
endfunction
"FUNCTION: Path.getDir() {{{3
"
"Returns this path if it is a directory, else this paths parent.
"
"Return:
"a Path object
function! s:Path.getDir()
if self.isDirectory
return self
else
return self.getParent()
endif
endfunction
"FUNCTION: Path.getParent() {{{3
"
"Returns a new path object for this paths parent
"
"Return:
"a new Path object
function! s:Path.getParent()
if s:running_windows
let path = self.drive . '\' . join(self.pathSegments[0:-2], '\')
else
let path = '/'. join(self.pathSegments[0:-2], '/')
endif
return s:Path.New(path)
endfunction
"FUNCTION: Path.getLastPathComponent(dirSlash) {{{3
"
"Gets the last part of this path.
"
"Args:
"dirSlash: if 1 then a trailing slash will be added to the returned value for
"directory nodes.
function! s:Path.getLastPathComponent(dirSlash)
if empty(self.pathSegments)
return ''
endif
let toReturn = self.pathSegments[-1]
if a:dirSlash && self.isDirectory
let toReturn = toReturn . '/'
endif
return toReturn
endfunction
"FUNCTION: Path.getSortOrderIndex() {{{3
"returns the index of the pattern in g:NERDTreeSortOrder that this path matches
function! s:Path.getSortOrderIndex()
let i = 0
while i < len(g:NERDTreeSortOrder)
if self.getLastPathComponent(1) =~# g:NERDTreeSortOrder[i]
return i
endif
let i = i + 1
endwhile
return s:NERDTreeSortStarIndex
endfunction
"FUNCTION: Path.ignore() {{{3
"returns true if this path should be ignored
function! s:Path.ignore()
"filter out the user specified paths to ignore
if b:NERDTreeIgnoreEnabled
for i in g:NERDTreeIgnore
if self._ignorePatternMatches(i)
return 1
endif
endfor
endif
"dont show hidden files unless instructed to
if b:NERDTreeShowHidden ==# 0 && self.getLastPathComponent(0) =~# '^\.'
return 1
endif
if b:NERDTreeShowFiles ==# 0 && self.isDirectory ==# 0
return 1
endif
if exists("*NERDTreeCustomIgnoreFilter") && NERDTreeCustomIgnoreFilter(self)
return 1
endif
return 0
endfunction
"FUNCTION: Path._ignorePatternMatches(pattern) {{{3
"returns true if this path matches the given ignore pattern
function! s:Path._ignorePatternMatches(pattern)
let pat = a:pattern
if strpart(pat,len(pat)-7) == '[[dir]]'
if !self.isDirectory
return 0
endif
let pat = strpart(pat,0, len(pat)-7)
elseif strpart(pat,len(pat)-8) == '[[file]]'
if self.isDirectory
return 0
endif
let pat = strpart(pat,0, len(pat)-8)
endif
return self.getLastPathComponent(0) =~# pat
endfunction
"FUNCTION: Path.isUnder(path) {{{3
"return 1 if this path is somewhere under the given path in the filesystem.
"
"a:path should be a dir
function! s:Path.isUnder(path)
if a:path.isDirectory == 0
return 0
endif
let this = self.str()
let that = a:path.str()
return stridx(this, that . s:Path.Slash()) == 0
endfunction
"FUNCTION: Path.JoinPathStrings(...) {{{3
function! s:Path.JoinPathStrings(...)
let components = []
for i in a:000
let components = extend(components, split(i, '/'))
endfor
return '/' . join(components, '/')
endfunction
"FUNCTION: Path.equals() {{{3
"
"Determines whether 2 path objects are "equal".
"They are equal if the paths they represent are the same
"
"Args:
"path: the other path obj to compare this with
function! s:Path.equals(path)
return self.str() ==# a:path.str()
endfunction
"FUNCTION: Path.New() {{{3
"The Constructor for the Path object
function! s:Path.New(path)
let newPath = copy(self)
call newPath.readInfoFromDisk(s:Path.AbsolutePathFor(a:path))
let newPath.cachedDisplayString = ""
return newPath
endfunction
"FUNCTION: Path.Slash() {{{3
"return the slash to use for the current OS
function! s:Path.Slash()
return s:running_windows ? '\' : '/'
endfunction
"FUNCTION: Path.Resolve() {{{3
"Invoke the vim resolve() function and return the result
"This is necessary because in some versions of vim resolve() removes trailing
"slashes while in other versions it doesn't. This always removes the trailing
"slash
function! s:Path.Resolve(path)
let tmp = resolve(a:path)
return tmp =~# '/$' ? substitute(tmp, '/$', '', '') : tmp
endfunction
"FUNCTION: Path.readInfoFromDisk(fullpath) {{{3
"
"
"Throws NERDTree.Path.InvalidArguments exception.
function! s:Path.readInfoFromDisk(fullpath)
call self.extractDriveLetter(a:fullpath)
let fullpath = s:Path.WinToUnixPath(a:fullpath)
if getftype(fullpath) ==# "fifo"
throw "NERDTree.InvalidFiletypeError: Cant handle FIFO files: " . a:fullpath
endif
let self.pathSegments = split(fullpath, '/')
let self.isReadOnly = 0
if isdirectory(a:fullpath)
let self.isDirectory = 1
elseif filereadable(a:fullpath)
let self.isDirectory = 0
let self.isReadOnly = filewritable(a:fullpath) ==# 0
else
throw "NERDTree.InvalidArgumentsError: Invalid path = " . a:fullpath
endif
let self.isExecutable = 0
if !self.isDirectory
let self.isExecutable = getfperm(a:fullpath) =~# 'x'
endif
"grab the last part of the path (minus the trailing slash)
let lastPathComponent = self.getLastPathComponent(0)
"get the path to the new node with the parent dir fully resolved
let hardPath = s:Path.Resolve(self.strTrunk()) . '/' . lastPathComponent
"if the last part of the path is a symlink then flag it as such
let self.isSymLink = (s:Path.Resolve(hardPath) != hardPath)
if self.isSymLink
let self.symLinkDest = s:Path.Resolve(fullpath)
"if the link is a dir then slap a / on the end of its dest
if isdirectory(self.symLinkDest)
"we always wanna treat MS windows shortcuts as files for
"simplicity
if hardPath !~# '\.lnk$'
let self.symLinkDest = self.symLinkDest . '/'
endif
endif
endif
endfunction
"FUNCTION: Path.refresh() {{{3
function! s:Path.refresh()
call self.readInfoFromDisk(self.str())
call self.cacheDisplayString()
endfunction
"FUNCTION: Path.rename() {{{3
"
"Renames this node on the filesystem
function! s:Path.rename(newPath)
if a:newPath ==# ''
throw "NERDTree.InvalidArgumentsError: Invalid newPath for renaming = ". a:newPath
endif
let success = rename(self.str(), a:newPath)
if success != 0
throw "NERDTree.PathRenameError: Could not rename: '" . self.str() . "'" . 'to:' . a:newPath
endif
call self.readInfoFromDisk(a:newPath)
for i in self.bookmarkNames()
let b = s:Bookmark.BookmarkFor(i)
call b.setPath(copy(self))
endfor
call s:Bookmark.Write()
endfunction
"FUNCTION: Path.str() {{{3
"
"Returns a string representation of this Path
"
"Takes an optional dictionary param to specify how the output should be
"formatted.
"
"The dict may have the following keys:
" 'format'
" 'escape'
" 'truncateTo'
"
"The 'format' key may have a value of:
" 'Cd' - a string to be used with the :cd command
" 'Edit' - a string to be used with :e :sp :new :tabedit etc
" 'UI' - a string used in the NERD tree UI
"
"The 'escape' key, if specified will cause the output to be escaped with
"shellescape()
"
"The 'truncateTo' key causes the resulting string to be truncated to the value
"'truncateTo' maps to. A '<' char will be prepended.
function! s:Path.str(...)
let options = a:0 ? a:1 : {}
let toReturn = ""
if has_key(options, 'format')
let format = options['format']
if has_key(self, '_strFor' . format)
exec 'let toReturn = self._strFor' . format . '()'
else
raise 'NERDTree.UnknownFormatError: unknown format "'. format .'"'
endif
else
let toReturn = self._str()
endif
if s:has_opt(options, 'escape')
let toReturn = shellescape(toReturn)
endif
if has_key(options, 'truncateTo')
let limit = options['truncateTo']
if len(toReturn) > limit
let toReturn = "<" . strpart(toReturn, len(toReturn) - limit + 1)
endif
endif
return toReturn
endfunction
"FUNCTION: Path._strForUI() {{{3
function! s:Path._strForUI()
let toReturn = '/' . join(self.pathSegments, '/')
if self.isDirectory && toReturn != '/'
let toReturn = toReturn . '/'
endif
return toReturn
endfunction
"FUNCTION: Path._strForCd() {{{3
"
" returns a string that can be used with :cd
function! s:Path._strForCd()
return escape(self.str(), s:escape_chars)
endfunction
"FUNCTION: Path._strForEdit() {{{3
"
"Return: the string for this path that is suitable to be used with the :edit
"command
function! s:Path._strForEdit()
let p = escape(self.str({'format': 'UI'}), s:escape_chars)
let cwd = getcwd() . s:Path.Slash()
"return a relative path if we can
let isRelative = 0
if s:running_windows
let isRelative = stridx(tolower(p), tolower(cwd)) == 0
else
let isRelative = stridx(p, cwd) == 0
endif
if isRelative
let p = strpart(p, strlen(cwd))
"handle the edge case where the file begins with a + (vim interprets
"the +foo in `:e +foo` as an option to :edit)
if p[0] == "+"
let p = '\' . p
endif
endif
if p ==# ''
let p = '.'
endif
return p
endfunction
"FUNCTION: Path._strForGlob() {{{3
function! s:Path._strForGlob()
let lead = s:Path.Slash()
"if we are running windows then slap a drive letter on the front
if s:running_windows
let lead = self.drive . '\'
endif
let toReturn = lead . join(self.pathSegments, s:Path.Slash())
if !s:running_windows
let toReturn = escape(toReturn, s:escape_chars)
endif
return toReturn
endfunction
"FUNCTION: Path._str() {{{3
"
"Gets the string path for this path object that is appropriate for the OS.
"EG, in windows c:\foo\bar
" in *nix /foo/bar
function! s:Path._str()
let lead = s:Path.Slash()
"if we are running windows then slap a drive letter on the front
if s:running_windows
let lead = self.drive . '\'
endif
return lead . join(self.pathSegments, s:Path.Slash())
endfunction
"FUNCTION: Path.strTrunk() {{{3
"Gets the path without the last segment on the end.
function! s:Path.strTrunk()
return self.drive . '/' . join(self.pathSegments[0:-2], '/')
endfunction
" FUNCTION: Path.tabnr() {{{3
" return the number of the first tab that is displaying this file
"
" return 0 if no tab was found
function! s:Path.tabnr()
let str = self.str()
for t in range(tabpagenr('$'))
for b in tabpagebuflist(t+1)
if str == expand('#' . b . ':p')
return t+1
endif
endfor
endfor
return 0
endfunction
"FUNCTION: Path.WinToUnixPath(pathstr){{{3
"Takes in a windows path and returns the unix equiv
"
"A class level method
"
"Args:
"pathstr: the windows path to convert
function! s:Path.WinToUnixPath(pathstr)
if !s:running_windows
return a:pathstr
endif
let toReturn = a:pathstr
"remove the x:\ of the front
let toReturn = substitute(toReturn, '^.*:\(\\\|/\)\?', '/', "")
"remove the \\ network share from the front
let toReturn = substitute(toReturn, '^\(\\\\\|\/\/\)[^\\\/]*\(\\\|\/\)[^\\\/]*\(\\\|\/\)\?', '/', "")
"convert all \ chars to /
let toReturn = substitute(toReturn, '\', '/', "g")
return toReturn
endfunction
" SECTION: General Functions {{{1
"============================================================
"FUNCTION: s:bufInWindows(bnum){{{2
"[[STOLEN FROM VTREEEXPLORER.VIM]]
"Determine the number of windows open to this buffer number.
"Care of Yegappan Lakshman. Thanks!
"
"Args:
"bnum: the subject buffers buffer number
function! s:bufInWindows(bnum)
let cnt = 0
let winnum = 1
while 1
let bufnum = winbufnr(winnum)
if bufnum < 0
break
endif
if bufnum ==# a:bnum
let cnt = cnt + 1
endif
let winnum = winnum + 1
endwhile
return cnt
endfunction " >>>
"FUNCTION: s:checkForBrowse(dir) {{{2
"inits a secondary nerd tree in the current buffer if appropriate
function! s:checkForBrowse(dir)
if a:dir != '' && isdirectory(a:dir)
call s:initNerdTreeInPlace(a:dir)
endif
endfunction
"FUNCTION: s:compareBookmarks(first, second) {{{2
"Compares two bookmarks
function! s:compareBookmarks(first, second)
return a:first.compareTo(a:second)
endfunction
" FUNCTION: s:completeBookmarks(A,L,P) {{{2
" completion function for the bookmark commands
function! s:completeBookmarks(A,L,P)
return filter(s:Bookmark.BookmarkNames(), 'v:val =~# "^' . a:A . '"')
endfunction
" FUNCTION: s:createDefaultBindings() {{{2
function! s:createDefaultBindings()
let s = '<SNR>' . s:SID() . '_'
call NERDTreeAddKeyMap({ 'key': 'middlerelease', 'scope': "all", 'callback': s."handleMiddleMouse" })
call NERDTreeAddKeyMap({ 'key': 'leftrelease', 'scope': "all", 'callback': s."handleLeftClick" })
call NERDTreeAddKeyMap({ 'key': '2-leftmouse', 'scope': "DirNode", 'callback': s."activateDirNode" })
call NERDTreeAddKeyMap({ 'key': '2-leftmouse', 'scope': "FileNode", 'callback': s."activateFileNode" })
call NERDTreeAddKeyMap({ 'key': '2-leftmouse', 'scope': "Bookmark", 'callback': s."activateBookmark" })
call NERDTreeAddKeyMap({ 'key': '2-leftmouse', 'scope': "all", 'callback': s."activateAll" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapActivateNode, 'scope': "DirNode", 'callback': s."activateDirNode" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapActivateNode, 'scope': "FileNode", 'callback': s."activateFileNode" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapActivateNode, 'scope': "Bookmark", 'callback': s."activateBookmark" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapActivateNode, 'scope': "all", 'callback': s."activateAll" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenSplit, 'scope': "Node", 'callback': s."openHSplit" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenVSplit, 'scope': "Node", 'callback': s."openVSplit" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenSplit, 'scope': "Bookmark", 'callback': s."openHSplit" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenVSplit, 'scope': "Bookmark", 'callback': s."openVSplit" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapPreview, 'scope': "Node", 'callback': s."previewNodeCurrent" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapPreviewVSplit, 'scope': "Node", 'callback': s."previewNodeVSplit" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapPreviewSplit, 'scope': "Node", 'callback': s."previewNodeHSplit" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapPreview, 'scope': "Bookmark", 'callback': s."previewNodeCurrent" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapPreviewVSplit, 'scope': "Bookmark", 'callback': s."previewNodeVSplit" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapPreviewSplit, 'scope': "Bookmark", 'callback': s."previewNodeHSplit" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenRecursively, 'scope': "DirNode", 'callback': s."openNodeRecursively" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapUpdir, 'scope': "all", 'callback': s."upDirCurrentRootClosed" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapUpdirKeepOpen, 'scope': "all", 'callback': s."upDirCurrentRootOpen" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapChangeRoot, 'scope': "Node", 'callback': s."chRoot" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapChdir, 'scope': "Node", 'callback': s."chCwd" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapQuit, 'scope': "all", 'callback': s."closeTreeWindow" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapRefreshRoot, 'scope': "all", 'callback': s."refreshRoot" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapRefresh, 'scope': "Node", 'callback': s."refreshCurrent" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapHelp, 'scope': "all", 'callback': s."displayHelp" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapToggleZoom, 'scope': "all", 'callback': s."toggleZoom" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapToggleHidden, 'scope': "all", 'callback': s."toggleShowHidden" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapToggleFilters, 'scope': "all", 'callback': s."toggleIgnoreFilter" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapToggleFiles, 'scope': "all", 'callback': s."toggleShowFiles" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapToggleBookmarks, 'scope': "all", 'callback': s."toggleShowBookmarks" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapCloseDir, 'scope': "Node", 'callback': s."closeCurrentDir" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapCloseChildren, 'scope': "DirNode", 'callback': s."closeChildren" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapMenu, 'scope': "Node", 'callback': s."showMenu" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapJumpParent, 'scope': "Node", 'callback': s."jumpToParent" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapJumpFirstChild, 'scope': "Node", 'callback': s."jumpToFirstChild" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapJumpLastChild, 'scope': "Node", 'callback': s."jumpToLastChild" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapJumpRoot, 'scope': "all", 'callback': s."jumpToRoot" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapJumpNextSibling, 'scope': "Node", 'callback': s."jumpToNextSibling" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapJumpPrevSibling, 'scope': "Node", 'callback': s."jumpToPrevSibling" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenInTab, 'scope': "Node", 'callback': s."openInNewTab" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenInTabSilent, 'scope': "Node", 'callback': s."openInNewTabSilent" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenInTab, 'scope': "Bookmark", 'callback': s."openInNewTab" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenInTabSilent, 'scope': "Bookmark", 'callback': s."openInNewTabSilent" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapOpenExpl, 'scope': "DirNode", 'callback': s."openExplorer" })
call NERDTreeAddKeyMap({ 'key': g:NERDTreeMapDeleteBookmark, 'scope': "Bookmark", 'callback': s."deleteBookmark" })
endfunction
" FUNCTION: s:deprecated(func, [msg]) {{{2
" Issue a deprecation warning for a:func. If a second arg is given, use this
" as the deprecation message
function! s:deprecated(func, ...)
let msg = a:0 ? a:func . ' ' . a:1 : a:func . ' is deprecated'
if !exists('s:deprecationWarnings')
let s:deprecationWarnings = {}
endif
if !has_key(s:deprecationWarnings, a:func)
let s:deprecationWarnings[a:func] = 1
echomsg msg
endif
endfunction
" FUNCTION: s:exec(cmd) {{{2
" same as :exec cmd but eventignore=all is set for the duration
function! s:exec(cmd)
let old_ei = &ei
set ei=all
exec a:cmd
let &ei = old_ei
endfunction
" FUNCTION: s:findAndRevealPath() {{{2
function! s:findAndRevealPath()
try
let p = s:Path.New(expand("%:p"))
catch /^NERDTree.InvalidArgumentsError/
call s:echo("no file for the current buffer")
return
endtry
if !s:treeExistsForTab()
try
let cwd = s:Path.New(getcwd())
catch /^NERDTree.InvalidArgumentsError/
call s:echo("current directory does not exist.")
let cwd = p.getParent()
endtry
if p.isUnder(cwd)
call s:initNerdTree(cwd.str())
else
call s:initNerdTree(p.getParent().str())
endif
else
if !p.isUnder(s:TreeFileNode.GetRootForTab().path)
call s:initNerdTree(p.getParent().str())
else
if !s:isTreeOpen()
call s:toggle("")
endif
endif
endif
call s:putCursorInTreeWin()
call b:NERDTreeRoot.reveal(p)
endfunction
" FUNCTION: s:has_opt(options, name) {{{2
function! s:has_opt(options, name)
return has_key(a:options, a:name) && a:options[a:name] == 1
endfunction
"FUNCTION: s:initNerdTree(name) {{{2
"Initialise the nerd tree for this tab. The tree will start in either the
"given directory, or the directory associated with the given bookmark
"
"Args:
"name: the name of a bookmark or a directory
function! s:initNerdTree(name)
let path = {}
if s:Bookmark.BookmarkExistsFor(a:name)
let path = s:Bookmark.BookmarkFor(a:name).path
else
let dir = a:name ==# '' ? getcwd() : a:name
"hack to get an absolute path if a relative path is given
if dir =~# '^\.'
let dir = getcwd() . s:Path.Slash() . dir
endif
let dir = s:Path.Resolve(dir)
try
let path = s:Path.New(dir)
catch /^NERDTree.InvalidArgumentsError/
call s:echo("No bookmark or directory found for: " . a:name)
return
endtry
endif
if !path.isDirectory
let path = path.getParent()
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 s:treeExistsForTab()
if s:isTreeOpen()
call s:closeTree()
endif
unlet t:NERDTreeBufName
endif
let newRoot = s:TreeDirNode.New(path)
call newRoot.open()
call s:createTreeWin()
let b:treeShowHelp = 0
let b:NERDTreeIgnoreEnabled = 1
let b:NERDTreeShowFiles = g:NERDTreeShowFiles
let b:NERDTreeShowHidden = g:NERDTreeShowHidden
let b:NERDTreeShowBookmarks = g:NERDTreeShowBookmarks
let b:NERDTreeRoot = newRoot
let b:NERDTreeType = "primary"
call s:renderView()
call b:NERDTreeRoot.putCursorHere(0, 0)
endfunction
"FUNCTION: s:initNerdTreeInPlace(dir) {{{2
function! s:initNerdTreeInPlace(dir)
try
let path = s:Path.New(a:dir)
catch /^NERDTree.InvalidArgumentsError/
call s: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 secondary tree buffer to ensure they are
"all independent
exec "silent edit " . s:nextBufferName()
let b:NERDTreePreviousBuf = bufnr(previousBuf)
let b:NERDTreeRoot = s:TreeDirNode.New(path)
call b:NERDTreeRoot.open()
call s:setCommonBufOptions()
let b:NERDTreeType = "secondary"
call s:renderView()
endfunction
" FUNCTION: s:initNerdTreeMirror() {{{2
function! s:initNerdTreeMirror()
"get the names off all the nerd tree buffers
let treeBufNames = []
for i in range(1, tabpagenr("$"))
let nextName = s:tabpagevar(i, 'NERDTreeBufName')
if nextName != -1 && (!exists("t:NERDTreeBufName") || nextName != t:NERDTreeBufName)
call add(treeBufNames, nextName)
endif
endfor
let treeBufNames = s:unique(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, "NERDTreeRoot")
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 s:echo("No trees to mirror")
return
endif
if s:treeExistsForTab() && s:isTreeOpen()
call s:closeTree()
endif
let t:NERDTreeBufName = bufferName
call s:createTreeWin()
exec 'buffer ' . bufferName
if !&hidden
call s:renderView()
endif
endfunction
" FUNCTION: s:nextBufferName() {{{2
" returns the buffer name for the next nerd tree
function! s:nextBufferName()
let name = s:NERDTreeBufName . s:next_buffer_number
let s:next_buffer_number += 1
return name
endfunction
" FUNCTION: s:postSourceActions() {{{2
function! s:postSourceActions()
call s:Bookmark.CacheBookmarks(0)
call s:createDefaultBindings()
"load all nerdtree plugins
runtime! nerdtree_plugin/**/*.vim
endfunction
" FUNCTION: s:tabpagevar(tabnr, var) {{{2
function! s: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:treeExistsForBuffer() {{{2
" Returns 1 if a nerd tree root exists in the current buffer
function! s:treeExistsForBuf()
return exists("b:NERDTreeRoot")
endfunction
" Function: s:treeExistsForTab() {{{2
" Returns 1 if a nerd tree root exists in the current tab
function! s:treeExistsForTab()
return exists("t:NERDTreeBufName")
endfunction
" Function: s:SID() {{{2
function s:SID()
if !exists("s:sid")
let s:sid = matchstr(expand('<sfile>'), '<SNR>\zs\d\+\ze_SID$')
endif
return s:sid
endfun
"FUNCTION: s:upDir(keepState) {{{2
"moves the tree up a level
"
"Args:
"keepState: 1 if the current root should be left open when the tree is
"re-rendered
function! s:upDir(keepState)
let cwd = b:NERDTreeRoot.path.str({'format': 'UI'})
if cwd ==# "/" || cwd =~# '^[^/]..$'
call s:echo("already at top dir")
else
if !a:keepState
call b:NERDTreeRoot.close()
endif
let oldRoot = b:NERDTreeRoot
if empty(b:NERDTreeRoot.parent)
let path = b:NERDTreeRoot.path.getParent()
let newRoot = s:TreeDirNode.New(path)
call newRoot.open()
call newRoot.transplantChild(b:NERDTreeRoot)
let b:NERDTreeRoot = newRoot
else
let b:NERDTreeRoot = b:NERDTreeRoot.parent
endif
if g:NERDTreeChDirMode ==# 2
call b:NERDTreeRoot.path.changeToDir()
endif
call s:renderView()
call oldRoot.putCursorHere(0, 0)
endif
endfunction
" Function: s:unique(list) {{{2
" returns a:list without duplicates
function! s:unique(list)
let uniqlist = []
for elem in a:list
if index(uniqlist, elem) ==# -1
let uniqlist += [elem]
endif
endfor
return uniqlist
endfunction
" SECTION: Public API {{{1
"============================================================
let g:NERDTreePath = s:Path
let g:NERDTreeDirNode = s:TreeDirNode
let g:NERDTreeFileNode = s:TreeFileNode
let g:NERDTreeBookmark = s:Bookmark
function! NERDTreeAddMenuItem(options)
call s:MenuItem.Create(a:options)
endfunction
function! NERDTreeAddMenuSeparator(...)
let opts = a:0 ? a:1 : {}
call s:MenuItem.CreateSeparator(opts)
endfunction
function! NERDTreeAddSubmenu(options)
return s:MenuItem.Create(a:options)
endfunction
function! NERDTreeAddKeyMap(options)
call s:KeyMap.Create(a:options)
endfunction
function! NERDTreeRender()
call s:renderView()
endfunction
" SECTION: View Functions {{{1
"============================================================
"FUNCTION: s:centerView() {{{2
"centers the nerd tree window around the cursor (provided the nerd tree
"options permit)
function! s:centerView()
if g:NERDTreeAutoCenter
let current_line = winline()
let lines_to_top = current_line
let lines_to_bottom = winheight(s:getTreeWinNum()) - current_line
if lines_to_top < g:NERDTreeAutoCenterThreshold || lines_to_bottom < g:NERDTreeAutoCenterThreshold
normal! zz
endif
endif
endfunction
"FUNCTION: s:closeTree() {{{2
"Closes the primary NERD tree window for this tab
function! s:closeTree()
if !s:isTreeOpen()
throw "NERDTree.NoTreeFoundError: no NERDTree is open"
endif
if winnr("$") != 1
if winnr() == s:getTreeWinNum()
call s:exec("wincmd p")
let bufnr = bufnr("")
call s:exec("wincmd p")
else
let bufnr = bufnr("")
endif
call s:exec(s:getTreeWinNum() . " wincmd w")
close
call s:exec(bufwinnr(bufnr) . " wincmd w")
else
close
endif
endfunction
"FUNCTION: s:closeTreeIfOpen() {{{2
"Closes the NERD tree window if it is open
function! s:closeTreeIfOpen()
if s:isTreeOpen()
call s:closeTree()
endif
endfunction
"FUNCTION: s:closeTreeIfQuitOnOpen() {{{2
"Closes the NERD tree window if the close on open option is set
function! s:closeTreeIfQuitOnOpen()
if g:NERDTreeQuitOnOpen && s:isTreeOpen()
call s:closeTree()
endif
endfunction
"FUNCTION: s:createTreeWin() {{{2
"Inits the NERD tree window. ie. opens it, sizes it, sets all the local
"options etc
function! s:createTreeWin()
"create the nerd tree window
let splitLocation = g:NERDTreeWinPos ==# "left" ? "topleft " : "botright "
let splitSize = g:NERDTreeWinSize
if !exists('t:NERDTreeBufName')
let t:NERDTreeBufName = s: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 s:setCommonBufOptions()
endfunction
"FUNCTION: s:dumpHelp {{{2
"prints out the quick help
function! s:dumpHelp()
let old_h = @h
if b:treeShowHelp ==# 1
let @h= "\" NERD tree (" . s:NERD_tree_version . ") quickhelp~\n"
let @h=@h."\" ============================\n"
let @h=@h."\" File node mappings~\n"
let @h=@h."\" ". (g:NERDTreeMouseMode ==# 3 ? "single" : "double") ."-click,\n"
let @h=@h."\" <CR>,\n"
if b:NERDTreeType ==# "primary"
let @h=@h."\" ". g:NERDTreeMapActivateNode .": open in prev window\n"
else
let @h=@h."\" ". g:NERDTreeMapActivateNode .": open in current window\n"
endif
if b:NERDTreeType ==# "primary"
let @h=@h."\" ". g:NERDTreeMapPreview .": preview\n"
endif
let @h=@h."\" ". g:NERDTreeMapOpenInTab.": open in new tab\n"
let @h=@h."\" ". g:NERDTreeMapOpenInTabSilent .": open in new tab silently\n"
let @h=@h."\" middle-click,\n"
let @h=@h."\" ". g:NERDTreeMapOpenSplit .": open split\n"
let @h=@h."\" ". g:NERDTreeMapPreviewSplit .": preview split\n"
let @h=@h."\" ". g:NERDTreeMapOpenVSplit .": open vsplit\n"
let @h=@h."\" ". g:NERDTreeMapPreviewVSplit .": preview vsplit\n"
let @h=@h."\"\n\" ----------------------------\n"
let @h=@h."\" Directory node mappings~\n"
let @h=@h."\" ". (g:NERDTreeMouseMode ==# 1 ? "double" : "single") ."-click,\n"
let @h=@h."\" ". g:NERDTreeMapActivateNode .": open & close node\n"
let @h=@h."\" ". g:NERDTreeMapOpenRecursively .": recursively open node\n"
let @h=@h."\" ". g:NERDTreeMapCloseDir .": close parent of node\n"
let @h=@h."\" ". g:NERDTreeMapCloseChildren .": close all child nodes of\n"
let @h=@h."\" current node recursively\n"
let @h=@h."\" middle-click,\n"
let @h=@h."\" ". g:NERDTreeMapOpenExpl.": explore selected dir\n"
let @h=@h."\"\n\" ----------------------------\n"
let @h=@h."\" Bookmark table mappings~\n"
let @h=@h."\" double-click,\n"
let @h=@h."\" ". g:NERDTreeMapActivateNode .": open bookmark\n"
let @h=@h."\" ". g:NERDTreeMapOpenInTab.": open in new tab\n"
let @h=@h."\" ". g:NERDTreeMapOpenInTabSilent .": open in new tab silently\n"
let @h=@h."\" ". g:NERDTreeMapDeleteBookmark .": delete bookmark\n"
let @h=@h."\"\n\" ----------------------------\n"
let @h=@h."\" Tree navigation mappings~\n"
let @h=@h."\" ". g:NERDTreeMapJumpRoot .": go to root\n"
let @h=@h."\" ". g:NERDTreeMapJumpParent .": go to parent\n"
let @h=@h."\" ". g:NERDTreeMapJumpFirstChild .": go to first child\n"
let @h=@h."\" ". g:NERDTreeMapJumpLastChild .": go to last child\n"
let @h=@h."\" ". g:NERDTreeMapJumpNextSibling .": go to next sibling\n"
let @h=@h."\" ". g:NERDTreeMapJumpPrevSibling .": go to prev sibling\n"
let @h=@h."\"\n\" ----------------------------\n"
let @h=@h."\" Filesystem mappings~\n"
let @h=@h."\" ". g:NERDTreeMapChangeRoot .": change tree root to the\n"
let @h=@h."\" selected dir\n"
let @h=@h."\" ". g:NERDTreeMapUpdir .": move tree root up a dir\n"
let @h=@h."\" ". g:NERDTreeMapUpdirKeepOpen .": move tree root up a dir\n"
let @h=@h."\" but leave old root open\n"
let @h=@h."\" ". g:NERDTreeMapRefresh .": refresh cursor dir\n"
let @h=@h."\" ". g:NERDTreeMapRefreshRoot .": refresh current root\n"
let @h=@h."\" ". g:NERDTreeMapMenu .": Show menu\n"
let @h=@h."\" ". g:NERDTreeMapChdir .":change the CWD to the\n"
let @h=@h."\" selected dir\n"
let @h=@h."\"\n\" ----------------------------\n"
let @h=@h."\" Tree filtering mappings~\n"
let @h=@h."\" ". g:NERDTreeMapToggleHidden .": hidden files (" . (b:NERDTreeShowHidden ? "on" : "off") . ")\n"
let @h=@h."\" ". g:NERDTreeMapToggleFilters .": file filters (" . (b:NERDTreeIgnoreEnabled ? "on" : "off") . ")\n"
let @h=@h."\" ". g:NERDTreeMapToggleFiles .": files (" . (b:NERDTreeShowFiles ? "on" : "off") . ")\n"
let @h=@h."\" ". g:NERDTreeMapToggleBookmarks .": bookmarks (" . (b:NERDTreeShowBookmarks ? "on" : "off") . ")\n"
"add quickhelp entries for each custom key map
let @h=@h."\"\n\" ----------------------------\n"
let @h=@h."\" Custom mappings~\n"
for i in s:KeyMap.All()
if !empty(i.quickhelpText)
let @h=@h."\" ". i.key .": ". i.quickhelpText ."\n"
endif
endfor
let @h=@h."\"\n\" ----------------------------\n"
let @h=@h."\" Other mappings~\n"
let @h=@h."\" ". g:NERDTreeMapQuit .": Close the NERDTree window\n"
let @h=@h."\" ". g:NERDTreeMapToggleZoom .": Zoom (maximize-minimize)\n"
let @h=@h."\" the NERDTree window\n"
let @h=@h."\" ". g:NERDTreeMapHelp .": toggle help\n"
let @h=@h."\"\n\" ----------------------------\n"
let @h=@h."\" Bookmark commands~\n"
let @h=@h."\" :Bookmark <name>\n"
let @h=@h."\" :BookmarkToRoot <name>\n"
let @h=@h."\" :RevealBookmark <name>\n"
let @h=@h."\" :OpenBookmark <name>\n"
let @h=@h."\" :ClearBookmarks [<names>]\n"
let @h=@h."\" :ClearAllBookmarks\n"
silent! put h
elseif g:NERDTreeMinimalUI == 0
let @h="\" Press ". g:NERDTreeMapHelp ." for help\n"
silent! put h
endif
let @h = old_h
endfunction
"FUNCTION: s:echo {{{2
"A wrapper for :echo. Appends 'NERDTree:' on the front of all messages
"
"Args:
"msg: the message to echo
function! s:echo(msg)
redraw
echomsg "NERDTree: " . a:msg
endfunction
"FUNCTION: s:echoWarning {{{2
"Wrapper for s:echo, sets the message type to warningmsg for this message
"Args:
"msg: the message to echo
function! s:echoWarning(msg)
echohl warningmsg
call s:echo(a:msg)
echohl normal
endfunction
"FUNCTION: s:echoError {{{2
"Wrapper for s:echo, sets the message type to errormsg for this message
"Args:
"msg: the message to echo
function! s:echoError(msg)
echohl errormsg
call s:echo(a:msg)
echohl normal
endfunction
"FUNCTION: s:firstUsableWindow(){{{2
"find the window number of the first normal window
function! s:firstUsableWindow()
let i = 1
while i <= winnr("$")
let bnum = winbufnr(i)
if bnum != -1 && getbufvar(bnum, '&buftype') ==# ''
\ && !getwinvar(i, '&previewwindow')
\ && (!getbufvar(bnum, '&modified') || &hidden)
return i
endif
let i += 1
endwhile
return -1
endfunction
"FUNCTION: s:getPath(ln) {{{2
"Gets the full path to the node that is rendered on the given line number
"
"Args:
"ln: the line number to get the path for
"
"Return:
"A path if a node was selected, {} if nothing is selected.
"If the 'up a dir' line was selected then the path to the parent of the
"current root is returned
function! s:getPath(ln)
let line = getline(a:ln)
let rootLine = s:TreeFileNode.GetRootLineNum()
"check to see if we have the root node
if a:ln == rootLine
return b:NERDTreeRoot.path
endif
if !g:NERDTreeDirArrows
" in case called from outside the tree
if line !~# '^ *[|`▸▾ ]' || line =~# '^$'
return {}
endif
endif
if line ==# s:tree_up_dir_line
return b:NERDTreeRoot.path.getParent()
endif
let indent = s:indentLevelFor(line)
"remove the tree parts and the leading space
let curFile = s:stripMarkupFromLine(line, 0)
let wasdir = 0
if curFile =~# '/$'
let wasdir = 1
let curFile = substitute(curFile, '/\?$', '/', "")
endif
let dir = ""
let lnum = a:ln
while lnum > 0
let lnum = lnum - 1
let curLine = getline(lnum)
let curLineStripped = s:stripMarkupFromLine(curLine, 1)
"have we reached the top of the tree?
if lnum == rootLine
let dir = b:NERDTreeRoot.path.str({'format': 'UI'}) . dir
break
endif
if curLineStripped =~# '/$'
let lpindent = s:indentLevelFor(curLine)
if lpindent < indent
let indent = indent - 1
let dir = substitute (curLineStripped,'^\\', "", "") . dir
continue
endif
endif
endwhile
let curFile = b:NERDTreeRoot.path.drive . dir . curFile
let toReturn = s:Path.New(curFile)
return toReturn
endfunction
"FUNCTION: s:getTreeWinNum() {{{2
"gets the nerd tree window number for this tab
function! s:getTreeWinNum()
if exists("t:NERDTreeBufName")
return bufwinnr(t:NERDTreeBufName)
else
return -1
endif
endfunction
"FUNCTION: s:indentLevelFor(line) {{{2
function! s:indentLevelFor(line)
let level = match(a:line, '[^ \-+~▸▾`|]') / s:tree_wid
" check if line includes arrows
if match(a:line, '[▸▾]') > -1
" decrement level as arrow uses 3 ascii chars
let level = level - 1
endif
return level
endfunction
"FUNCTION: s:isTreeOpen() {{{2
function! s:isTreeOpen()
return s:getTreeWinNum() != -1
endfunction
"FUNCTION: s:isWindowUsable(winnumber) {{{2
"Returns 0 if opening a file from the tree in the given window requires it to
"be split, 1 otherwise
"
"Args:
"winnumber: the number of the window in question
function! s:isWindowUsable(winnumber)
"gotta split if theres only one window (i.e. the NERD tree)
if winnr("$") ==# 1
return 0
endif
let oldwinnr = winnr()
call s:exec(a:winnumber . "wincmd p")
let specialWindow = getbufvar("%", '&buftype') != '' || getwinvar('%', '&previewwindow')
let modified = &modified
call s:exec(oldwinnr . "wincmd p")
"if its a special window e.g. quickfix or another explorer plugin then we
"have to split
if specialWindow
return 0
endif
if &hidden
return 1
endif
return !modified || s:bufInWindows(winbufnr(a:winnumber)) >= 2
endfunction
" FUNCTION: s:jumpToChild(direction) {{{2
" Args:
" direction: 0 if going to first child, 1 if going to last
function! s:jumpToChild(currentNode, direction)
if a:currentNode.isRoot()
return s:echo("cannot jump to " . (a:direction ? "last" : "first") . " child")
end
let dirNode = a:currentNode.parent
let childNodes = dirNode.getVisibleChildren()
let targetNode = childNodes[0]
if a:direction
let targetNode = childNodes[len(childNodes) - 1]
endif
if targetNode.equals(a:currentNode)
let siblingDir = a:currentNode.parent.findOpenDirSiblingWithVisibleChildren(a:direction)
if siblingDir != {}
let indx = a:direction ? siblingDir.getVisibleChildCount()-1 : 0
let targetNode = siblingDir.getChildByIndex(indx, 1)
endif
endif
call targetNode.putCursorHere(1, 0)
call s:centerView()
endfunction
" FUNCTION: s:jumpToSibling(currentNode, forward) {{{2
" moves the cursor to the sibling of the current node in the given direction
"
" Args:
" forward: 1 if the cursor should move to the next sibling, 0 if it should
" move back to the previous sibling
function! s:jumpToSibling(currentNode, forward)
let sibling = a:currentNode.findSibling(a:forward)
if !empty(sibling)
call sibling.putCursorHere(1, 0)
call s:centerView()
endif
endfunction
"FUNCTION: s:promptToDelBuffer(bufnum, msg){{{2
"prints out the given msg and, if the user responds by pushing 'y' then the
"buffer with the given bufnum is deleted
"
"Args:
"bufnum: the buffer that may be deleted
"msg: a message that will be echoed to the user asking them if they wish to
" del the buffer
function! s:promptToDelBuffer(bufnum, msg)
echo a:msg
if nr2char(getchar()) ==# 'y'
exec "silent bdelete! " . a:bufnum
endif
endfunction
"FUNCTION: s:putCursorOnBookmarkTable(){{{2
"Places the cursor at the top of the bookmarks table
function! s:putCursorOnBookmarkTable()
if !b:NERDTreeShowBookmarks
throw "NERDTree.IllegalOperationError: cant find bookmark table, bookmarks arent active"
endif
if g:NERDTreeMinimalUI
return cursor(1, 2)
endif
let rootNodeLine = s:TreeFileNode.GetRootLineNum()
let line = 1
while getline(line) !~# '^>-\+Bookmarks-\+$'
let line = line + 1
if line >= rootNodeLine
throw "NERDTree.BookmarkTableNotFoundError: didnt find the bookmarks table"
endif
endwhile
call cursor(line, 2)
endfunction
"FUNCTION: s:putCursorInTreeWin(){{{2
"Places the cursor in the nerd tree window
function! s:putCursorInTreeWin()
if !s:isTreeOpen()
throw "NERDTree.InvalidOperationError: cant put cursor in NERD tree window, no window exists"
endif
call s:exec(s:getTreeWinNum() . "wincmd w")
endfunction
"FUNCTION: s:renderBookmarks {{{2
function! s:renderBookmarks()
if g:NERDTreeMinimalUI == 0
call setline(line(".")+1, ">----------Bookmarks----------")
call cursor(line(".")+1, col("."))
endif
for i in s:Bookmark.Bookmarks()
call setline(line(".")+1, i.str())
call cursor(line(".")+1, col("."))
endfor
call setline(line(".")+1, '')
call cursor(line(".")+1, col("."))
endfunction
"FUNCTION: s:renderView {{{2
"The entry function for rendering the tree
function! s:renderView()
setlocal modifiable
"remember the top line of the buffer and the current line so we can
"restore the view exactly how it was
let curLine = line(".")
let curCol = col(".")
let topLine = line("w0")
"delete all lines in the buffer (being careful not to clobber a register)
silent 1,$delete _
call s:dumpHelp()
"delete the blank line before the help and add one after it
if g:NERDTreeMinimalUI == 0
call setline(line(".")+1, "")
call cursor(line(".")+1, col("."))
endif
if b:NERDTreeShowBookmarks
call s:renderBookmarks()
endif
"add the 'up a dir' line
if !g:NERDTreeMinimalUI
call setline(line(".")+1, s:tree_up_dir_line)
call cursor(line(".")+1, col("."))
endif
"draw the header line
let header = b:NERDTreeRoot.path.str({'format': 'UI', 'truncateTo': winwidth(0)})
call setline(line(".")+1, header)
call cursor(line(".")+1, col("."))
"draw the tree
let old_o = @o
let @o = b:NERDTreeRoot.renderToString()
silent put o
let @o = old_o
"delete the blank line at the top of the buffer
silent 1,1delete _
"restore the view
let old_scrolloff=&scrolloff
let &scrolloff=0
call cursor(topLine, 1)
normal! zt
call cursor(curLine, curCol)
let &scrolloff = old_scrolloff
setlocal nomodifiable
endfunction
"FUNCTION: s:renderViewSavingPosition {{{2
"Renders the tree and ensures the cursor stays on the current node or the
"current nodes parent if it is no longer available upon re-rendering
function! s:renderViewSavingPosition()
let currentNode = s:TreeFileNode.GetSelected()
"go up the tree till we find a node that will be visible or till we run
"out of nodes
while currentNode != {} && !currentNode.isVisible() && !currentNode.isRoot()
let currentNode = currentNode.parent
endwhile
call s:renderView()
if currentNode != {}
call currentNode.putCursorHere(0, 0)
endif
endfunction
"FUNCTION: s:restoreScreenState() {{{2
"
"Sets the screen state back to what it was when s:saveScreenState was last
"called.
"
"Assumes the cursor is in the NERDTree window
function! s:restoreScreenState()
if !exists("b:NERDTreeOldTopLine") || !exists("b:NERDTreeOldPos") || !exists("b:NERDTreeOldWindowSize")
return
endif
exec("silent vertical resize ".b:NERDTreeOldWindowSize)
let old_scrolloff=&scrolloff
let &scrolloff=0
call cursor(b:NERDTreeOldTopLine, 0)
normal! zt
call setpos(".", b:NERDTreeOldPos)
let &scrolloff=old_scrolloff
endfunction
"FUNCTION: s:saveScreenState() {{{2
"Saves the current cursor position in the current buffer and the window
"scroll position
function! s:saveScreenState()
let win = winnr()
try
call s:putCursorInTreeWin()
let b:NERDTreeOldPos = getpos(".")
let b:NERDTreeOldTopLine = line("w0")
let b:NERDTreeOldWindowSize = winwidth("")
call s:exec(win . "wincmd w")
catch /^NERDTree.InvalidOperationError/
endtry
endfunction
"FUNCTION: s:setCommonBufOptions() {{{2
function! s: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 s:setupStatusline()
let b:treeShowHelp = 0
let b:NERDTreeIgnoreEnabled = 1
let b:NERDTreeShowFiles = g:NERDTreeShowFiles
let b:NERDTreeShowHidden = g:NERDTreeShowHidden
let b:NERDTreeShowBookmarks = g:NERDTreeShowBookmarks
setfiletype nerdtree
call s:bindMappings()
endfunction
"FUNCTION: s:setupStatusline() {{{2
function! s:setupStatusline()
if g:NERDTreeStatusline != -1
let &l:statusline = g:NERDTreeStatusline
endif
endfunction
"FUNCTION: s:stripMarkupFromLine(line, removeLeadingSpaces){{{2
"returns the given line with all the tree parts stripped off
"
"Args:
"line: the subject line
"removeLeadingSpaces: 1 if leading spaces are to be removed (leading spaces =
"any spaces before the actual text of the node)
function! s:stripMarkupFromLine(line, removeLeadingSpaces)
let line = a:line
"remove the tree parts and the leading space
let line = substitute (line, s:tree_markup_reg,"","")
"strip off any read only flag
let line = substitute (line, ' \[RO\]', "","")
"strip off any bookmark flags
let line = substitute (line, ' {[^}]*}', "","")
"strip off any executable flags
let line = substitute (line, '*\ze\($\| \)', "","")
let wasdir = 0
if line =~# '/$'
let wasdir = 1
endif
let line = substitute (line,' -> .*',"","") " remove link to
if wasdir ==# 1
let line = substitute (line, '/\?$', '/', "")
endif
if a:removeLeadingSpaces
let line = substitute (line, '^ *', '', '')
endif
return line
endfunction
"FUNCTION: s:toggle(dir) {{{2
"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:toggle(dir)
if s:treeExistsForTab()
if !s:isTreeOpen()
call s:createTreeWin()
if !&hidden
call s:renderView()
endif
call s:restoreScreenState()
else
call s:closeTree()
endif
else
call s:initNerdTree(a:dir)
endif
endfunction
"SECTION: Interface bindings {{{1
"============================================================
"FUNCTION: s:activateAll() {{{2
"handle the user activating the updir line
function! s:activateAll()
if getline(".") ==# s:tree_up_dir_line
return s:upDir(0)
endif
endfunction
"FUNCTION: s:activateDirNode() {{{2
"handle the user activating a tree node
function! s:activateDirNode(node)
call a:node.activate({'reuse': 1})
endfunction
"FUNCTION: s:activateFileNode() {{{2
"handle the user activating a tree node
function! s:activateFileNode(node)
call a:node.activate({'reuse': 1, 'where': 'p'})
endfunction
"FUNCTION: s:activateBookmark() {{{2
"handle the user activating a bookmark
function! s:activateBookmark(bm)
call a:bm.activate(!a:bm.path.isDirectory ? {'where': 'p'} : {})
endfunction
"FUNCTION: s:bindMappings() {{{2
function! s:bindMappings()
"make <cr> do the same as the default 'o' mapping
exec "nnoremap <silent> <buffer> <cr> :call <SID>KeyMap_Invoke('". g:NERDTreeMapActivateNode ."')<cr>"
call s:KeyMap.BindAll()
command! -buffer -nargs=? Bookmark :call <SID>bookmarkNode('<args>')
command! -buffer -complete=customlist,s:completeBookmarks -nargs=1 RevealBookmark :call <SID>revealBookmark('<args>')
command! -buffer -complete=customlist,s:completeBookmarks -nargs=1 OpenBookmark :call <SID>openBookmark('<args>')
command! -buffer -complete=customlist,s:completeBookmarks -nargs=* ClearBookmarks call <SID>clearBookmarks('<args>')
command! -buffer -complete=customlist,s:completeBookmarks -nargs=+ BookmarkToRoot call s:Bookmark.ToRoot('<args>')
command! -buffer -nargs=0 ClearAllBookmarks call s:Bookmark.ClearAll() <bar> call <SID>renderView()
command! -buffer -nargs=0 ReadBookmarks call s:Bookmark.CacheBookmarks(0) <bar> call <SID>renderView()
command! -buffer -nargs=0 WriteBookmarks call s:Bookmark.Write()
endfunction
" FUNCTION: s:bookmarkNode(name) {{{2
" Associate the current node with the given name
function! s:bookmarkNode(...)
let currentNode = s:TreeFileNode.GetSelected()
if currentNode != {}
let name = a:1
if empty(name)
let name = currentNode.path.getLastPathComponent(0)
endif
try
call currentNode.bookmark(name)
call s:renderView()
catch /^NERDTree.IllegalBookmarkNameError/
call s:echo("bookmark names must not contain spaces")
endtry
else
call s:echo("select a node first")
endif
endfunction
" FUNCTION: s:chCwd(node) {{{2
function! s:chCwd(node)
try
call a:node.path.changeToDir()
catch /^NERDTree.PathChangeError/
call s:echoWarning("could not change cwd")
endtry
endfunction
" FUNCTION: s:chRoot(node) {{{2
" changes the current root to the selected one
function! s:chRoot(node)
call a:node.makeRoot()
call s:renderView()
call b:NERDTreeRoot.putCursorHere(0, 0)
endfunction
" FUNCTION: s:clearBookmarks(bookmarks) {{{2
function! s:clearBookmarks(bookmarks)
if a:bookmarks ==# ''
let currentNode = s:TreeFileNode.GetSelected()
if currentNode != {}
call currentNode.clearBoomarks()
endif
else
for name in split(a:bookmarks, ' ')
let bookmark = s:Bookmark.BookmarkFor(name)
call bookmark.delete()
endfor
endif
call s:renderView()
endfunction
" FUNCTION: s:closeChildren(node) {{{2
" closes all childnodes of the current node
function! s:closeChildren(node)
call a:node.closeChildren()
call s:renderView()
call a:node.putCursorHere(0, 0)
endfunction
" FUNCTION: s:closeCurrentDir(node) {{{2
" closes the parent dir of the current node
function! s:closeCurrentDir(node)
let parent = a:node.parent
if parent ==# {} || parent.isRoot()
call s:echo("cannot close tree root")
else
call a:node.parent.close()
call s:renderView()
call a:node.parent.putCursorHere(0, 0)
endif
endfunction
" FUNCTION: s:closeTreeWindow() {{{2
" close the tree window
function! s:closeTreeWindow()
if b:NERDTreeType ==# "secondary" && b:NERDTreePreviousBuf != -1
exec "buffer " . b:NERDTreePreviousBuf
else
if winnr("$") > 1
call s:closeTree()
else
call s:echo("Cannot close last window")
endif
endif
endfunction
" FUNCTION: s:deleteBookmark(bm) {{{2
" if the cursor is on a bookmark, prompt to delete
function! s:deleteBookmark(bm)
echo "Are you sure you wish to delete the bookmark:\n\"" . a:bm.name . "\" (yN):"
if nr2char(getchar()) ==# 'y'
try
call a:bm.delete()
call s:renderView()
redraw
catch /^NERDTree/
call s:echoWarning("Could not remove bookmark")
endtry
else
call s:echo("delete aborted" )
endif
endfunction
" FUNCTION: s:displayHelp() {{{2
" toggles the help display
function! s:displayHelp()
let b:treeShowHelp = b:treeShowHelp ? 0 : 1
call s:renderView()
call s:centerView()
endfunction
"FUNCTION: s:handleLeftClick() {{{2
"Checks if the click should open the current node
function! s:handleLeftClick()
let currentNode = s:TreeFileNode.GetSelected()
if currentNode != {}
"the dir arrows are multibyte chars, and vim's string functions only
"deal with single bytes - so split the line up with the hack below and
"take the line substring manually
let line = split(getline(line(".")), '\zs')
let startToCur = ""
for i in range(0,virtcol(".")-1)
let startToCur .= line[i]
endfor
if currentNode.path.isDirectory
if startToCur =~# s:tree_markup_reg && startToCur =~# '[+~▾▸] \?$'
call currentNode.activate()
return
endif
endif
if (g:NERDTreeMouseMode ==# 2 && currentNode.path.isDirectory) || g:NERDTreeMouseMode ==# 3
let char = strpart(startToCur, strlen(startToCur)-1, 1)
if char !~# s:tree_markup_reg
if currentNode.path.isDirectory
call currentNode.activate()
else
call currentNode.activate({'reuse': 1, 'where': 'p'})
endif
return
endif
endif
endif
endfunction
" FUNCTION: s:handleMiddleMouse() {{{2
function! s:handleMiddleMouse()
let curNode = s:TreeFileNode.GetSelected()
if curNode ==# {}
call s:echo("Put the cursor on a node first" )
return
endif
if curNode.path.isDirectory
call s:openExplorer(curNode)
else
call curNode.open({'where': 'h'})
endif
endfunction
" FUNCTION: s:jumpToFirstChild() {{{2
" wrapper for the jump to child method
function! s:jumpToFirstChild(node)
call s:jumpToChild(a:node, 0)
endfunction
" FUNCTION: s:jumpToLastChild() {{{2
" wrapper for the jump to child method
function! s:jumpToLastChild(node)
call s:jumpToChild(a:node, 1)
endfunction
" FUNCTION: s:jumpToParent(node) {{{2
" moves the cursor to the parent of the current node
function! s:jumpToParent(node)
if !empty(a:node.parent)
call a:node.parent.putCursorHere(1, 0)
call s:centerView()
else
call s:echo("cannot jump to parent")
endif
endfunction
" FUNCTION: s:jumpToRoot() {{{2
" moves the cursor to the root node
function! s:jumpToRoot()
call b:NERDTreeRoot.putCursorHere(1, 0)
call s:centerView()
endfunction
" FUNCTION: s:jumpToNextSibling(node) {{{2
function! s:jumpToNextSibling(node)
call s:jumpToSibling(a:node, 1)
endfunction
" FUNCTION: s:jumpToPrevSibling(node) {{{2
function! s:jumpToPrevSibling(node)
call s:jumpToSibling(a:node, 0)
endfunction
" FUNCTION: s:openBookmark(name) {{{2
" put the cursor on the given bookmark and, if its a file, open it
function! s:openBookmark(name)
try
let targetNode = s:Bookmark.GetNodeForName(a:name, 0)
call targetNode.putCursorHere(0, 1)
redraw!
catch /^NERDTree.BookmarkedNodeNotFoundError/
call s:echo("note - target node is not cached")
let bookmark = s:Bookmark.BookmarkFor(a:name)
let targetNode = s:TreeFileNode.New(bookmark.path)
endtry
if targetNode.path.isDirectory
call targetNode.openExplorer()
else
call targetNode.open({'where': 'p'})
endif
endfunction
" FUNCTION: s:openHSplit(target) {{{2
function! s:openHSplit(target)
call a:target.activate({'where': 'h'})
endfunction
" FUNCTION: s:openVSplit(target) {{{2
function! s:openVSplit(target)
call a:target.activate({'where': 'v'})
endfunction
" FUNCTION: s:openExplorer(node) {{{2
function! s:openExplorer(node)
call a:node.openExplorer()
endfunction
" FUNCTION: s:openInNewTab(target) {{{2
function! s:openInNewTab(target)
call a:target.activate({'where': 't'})
endfunction
" FUNCTION: s:openInNewTabSilent(target) {{{2
function! s:openInNewTabSilent(target)
call a:target.activate({'where': 't', 'stay': 1})
endfunction
" FUNCTION: s:openNodeRecursively(node) {{{2
function! s:openNodeRecursively(node)
call s:echo("Recursively opening node. Please wait...")
call a:node.openRecursively()
call s:renderView()
redraw
call s:echo("Recursively opening node. Please wait... DONE")
endfunction
"FUNCTION: s:previewNodeCurrent(node) {{{2
function! s:previewNodeCurrent(node)
call a:node.open({'stay': 1, 'where': 'p', 'keepopen': 1})
endfunction
"FUNCTION: s:previewNodeHSplit(node) {{{2
function! s:previewNodeHSplit(node)
call a:node.open({'stay': 1, 'where': 'h', 'keepopen': 1})
endfunction
"FUNCTION: s:previewNodeVSplit(node) {{{2
function! s:previewNodeVSplit(node)
call a:node.open({'stay': 1, 'where': 'v', 'keepopen': 1})
endfunction
" FUNCTION: s:revealBookmark(name) {{{2
" put the cursor on the node associate with the given name
function! s:revealBookmark(name)
try
let targetNode = s:Bookmark.GetNodeForName(a:name, 0)
call targetNode.putCursorHere(0, 1)
catch /^NERDTree.BookmarkNotFoundError/
call s:echo("Bookmark isnt cached under the current root")
endtry
endfunction
" FUNCTION: s:refreshRoot() {{{2
" Reloads the current root. All nodes below this will be lost and the root dir
" will be reloaded.
function! s:refreshRoot()
call s:echo("Refreshing the root node. This could take a while...")
call b:NERDTreeRoot.refresh()
call s:renderView()
redraw
call s:echo("Refreshing the root node. This could take a while... DONE")
endfunction
" FUNCTION: s:refreshCurrent(node) {{{2
" refreshes the root for the current node
function! s:refreshCurrent(node)
let node = a:node
if !node.path.isDirectory
let node = node.parent
endif
call s:echo("Refreshing node. This could take a while...")
call node.refresh()
call s:renderView()
redraw
call s:echo("Refreshing node. This could take a while... DONE")
endfunction
" FUNCTION: s:showMenu(node) {{{2
function! s:showMenu(node)
let mc = s:MenuController.New(s:MenuItem.AllEnabled())
call mc.showMenu()
endfunction
" FUNCTION: s:toggleIgnoreFilter() {{{2
" toggles the use of the NERDTreeIgnore option
function! s:toggleIgnoreFilter()
let b:NERDTreeIgnoreEnabled = !b:NERDTreeIgnoreEnabled
call s:renderViewSavingPosition()
call s:centerView()
endfunction
" FUNCTION: s:toggleShowBookmarks() {{{2
" toggles the display of bookmarks
function! s:toggleShowBookmarks()
let b:NERDTreeShowBookmarks = !b:NERDTreeShowBookmarks
if b:NERDTreeShowBookmarks
call s:renderView()
call s:putCursorOnBookmarkTable()
else
call s:renderViewSavingPosition()
endif
call s:centerView()
endfunction
" FUNCTION: s:toggleShowFiles() {{{2
" toggles the display of hidden files
function! s:toggleShowFiles()
let b:NERDTreeShowFiles = !b:NERDTreeShowFiles
call s:renderViewSavingPosition()
call s:centerView()
endfunction
" FUNCTION: s:toggleShowHidden() {{{2
" toggles the display of hidden files
function! s:toggleShowHidden()
let b:NERDTreeShowHidden = !b:NERDTreeShowHidden
call s:renderViewSavingPosition()
call s:centerView()
endfunction
" FUNCTION: s:toggleZoom() {{{2
" zoom (maximize/minimize) the NERDTree window
function! s:toggleZoom()
if exists("b:NERDTreeZoomed") && b:NERDTreeZoomed
let size = exists("b:NERDTreeOldWindowSize") ? b:NERDTreeOldWindowSize : g:NERDTreeWinSize
exec "silent vertical resize ". size
let b:NERDTreeZoomed = 0
else
exec "vertical resize"
let b:NERDTreeZoomed = 1
endif
endfunction
" FUNCTION: s:upDirCurrentRootOpen() {{{2
function! s:upDirCurrentRootOpen()
call s:upDir(1)
endfunction
" FUNCTION: s:upDirCurrentRootClosed() {{{2
function! s:upDirCurrentRootClosed()
call s:upDir(0)
endfunction
" SECTION: Post Source Actions {{{1
call s:postSourceActions()
"reset &cpo back to users setting
let &cpo = s:old_cpo
" vim: set sw=4 sts=4 et fdm=marker:
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