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507 lines
17 KiB
VimL
507 lines
17 KiB
VimL
8 years ago
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"CLASS: UI
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"============================================================
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let s:UI = {}
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let g:NERDTreeUI = s:UI
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"FUNCTION: s:UI.centerView() {{{2
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"centers the nerd tree window around the cursor (provided the nerd tree
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"options permit)
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function! s:UI.centerView()
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if g:NERDTreeAutoCenter
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let current_line = winline()
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let lines_to_top = current_line
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let lines_to_bottom = winheight(g:NERDTree.GetWinNum()) - current_line
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if lines_to_top < g:NERDTreeAutoCenterThreshold || lines_to_bottom < g:NERDTreeAutoCenterThreshold
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normal! zz
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endif
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endif
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endfunction
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"FUNCTION: s:UI._dumpHelp {{{1
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"prints out the quick help
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function! s:UI._dumpHelp()
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let old_h = @h
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if b:treeShowHelp ==# 1
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let @h= "\" NERD tree (" . nerdtree#version() . ") quickhelp~\n"
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let @h=@h."\" ============================\n"
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let @h=@h."\" File node mappings~\n"
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let @h=@h."\" ". (g:NERDTreeMouseMode ==# 3 ? "single" : "double") ."-click,\n"
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let @h=@h."\" <CR>,\n"
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if b:NERDTreeType ==# "primary"
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let @h=@h."\" ". g:NERDTreeMapActivateNode .": open in prev window\n"
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else
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let @h=@h."\" ". g:NERDTreeMapActivateNode .": open in current window\n"
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endif
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if b:NERDTreeType ==# "primary"
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let @h=@h."\" ". g:NERDTreeMapPreview .": preview\n"
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endif
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let @h=@h."\" ". g:NERDTreeMapOpenInTab.": open in new tab\n"
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let @h=@h."\" ". g:NERDTreeMapOpenInTabSilent .": open in new tab silently\n"
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let @h=@h."\" middle-click,\n"
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let @h=@h."\" ". g:NERDTreeMapOpenSplit .": open split\n"
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let @h=@h."\" ". g:NERDTreeMapPreviewSplit .": preview split\n"
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let @h=@h."\" ". g:NERDTreeMapOpenVSplit .": open vsplit\n"
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let @h=@h."\" ". g:NERDTreeMapPreviewVSplit .": preview vsplit\n"
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let @h=@h."\"\n\" ----------------------------\n"
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let @h=@h."\" Directory node mappings~\n"
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let @h=@h."\" ". (g:NERDTreeMouseMode ==# 1 ? "double" : "single") ."-click,\n"
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let @h=@h."\" ". g:NERDTreeMapActivateNode .": open & close node\n"
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let @h=@h."\" ". g:NERDTreeMapOpenRecursively .": recursively open node\n"
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let @h=@h."\" ". g:NERDTreeMapCloseDir .": close parent of node\n"
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let @h=@h."\" ". g:NERDTreeMapCloseChildren .": close all child nodes of\n"
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let @h=@h."\" current node recursively\n"
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let @h=@h."\" middle-click,\n"
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let @h=@h."\" ". g:NERDTreeMapOpenExpl.": explore selected dir\n"
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let @h=@h."\"\n\" ----------------------------\n"
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let @h=@h."\" Bookmark table mappings~\n"
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let @h=@h."\" double-click,\n"
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let @h=@h."\" ". g:NERDTreeMapActivateNode .": open bookmark\n"
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let @h=@h."\" ". g:NERDTreeMapOpenInTab.": open in new tab\n"
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let @h=@h."\" ". g:NERDTreeMapOpenInTabSilent .": open in new tab silently\n"
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let @h=@h."\" ". g:NERDTreeMapDeleteBookmark .": delete bookmark\n"
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let @h=@h."\"\n\" ----------------------------\n"
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let @h=@h."\" Tree navigation mappings~\n"
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let @h=@h."\" ". g:NERDTreeMapJumpRoot .": go to root\n"
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let @h=@h."\" ". g:NERDTreeMapJumpParent .": go to parent\n"
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let @h=@h."\" ". g:NERDTreeMapJumpFirstChild .": go to first child\n"
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let @h=@h."\" ". g:NERDTreeMapJumpLastChild .": go to last child\n"
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let @h=@h."\" ". g:NERDTreeMapJumpNextSibling .": go to next sibling\n"
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let @h=@h."\" ". g:NERDTreeMapJumpPrevSibling .": go to prev sibling\n"
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let @h=@h."\"\n\" ----------------------------\n"
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let @h=@h."\" Filesystem mappings~\n"
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let @h=@h."\" ". g:NERDTreeMapChangeRoot .": change tree root to the\n"
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let @h=@h."\" selected dir\n"
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let @h=@h."\" ". g:NERDTreeMapUpdir .": move tree root up a dir\n"
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let @h=@h."\" ". g:NERDTreeMapUpdirKeepOpen .": move tree root up a dir\n"
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let @h=@h."\" but leave old root open\n"
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let @h=@h."\" ". g:NERDTreeMapRefresh .": refresh cursor dir\n"
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let @h=@h."\" ". g:NERDTreeMapRefreshRoot .": refresh current root\n"
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let @h=@h."\" ". g:NERDTreeMapMenu .": Show menu\n"
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let @h=@h."\" ". g:NERDTreeMapChdir .":change the CWD to the\n"
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let @h=@h."\" selected dir\n"
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let @h=@h."\" ". g:NERDTreeMapCWD .":change tree root to CWD\n"
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let @h=@h."\"\n\" ----------------------------\n"
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let @h=@h."\" Tree filtering mappings~\n"
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let @h=@h."\" ". g:NERDTreeMapToggleHidden .": hidden files (" . (b:NERDTreeShowHidden ? "on" : "off") . ")\n"
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let @h=@h."\" ". g:NERDTreeMapToggleFilters .": file filters (" . (b:NERDTreeIgnoreEnabled ? "on" : "off") . ")\n"
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let @h=@h."\" ". g:NERDTreeMapToggleFiles .": files (" . (b:NERDTreeShowFiles ? "on" : "off") . ")\n"
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let @h=@h."\" ". g:NERDTreeMapToggleBookmarks .": bookmarks (" . (b:NERDTreeShowBookmarks ? "on" : "off") . ")\n"
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"add quickhelp entries for each custom key map
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let @h=@h."\"\n\" ----------------------------\n"
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let @h=@h."\" Custom mappings~\n"
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for i in g:NERDTreeKeyMap.All()
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if !empty(i.quickhelpText)
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let @h=@h."\" ". i.key .": ". i.quickhelpText ."\n"
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endif
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endfor
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let @h=@h."\"\n\" ----------------------------\n"
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let @h=@h."\" Other mappings~\n"
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let @h=@h."\" ". g:NERDTreeMapQuit .": Close the NERDTree window\n"
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let @h=@h."\" ". g:NERDTreeMapToggleZoom .": Zoom (maximize-minimize)\n"
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let @h=@h."\" the NERDTree window\n"
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let @h=@h."\" ". g:NERDTreeMapHelp .": toggle help\n"
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let @h=@h."\"\n\" ----------------------------\n"
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let @h=@h."\" Bookmark commands~\n"
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let @h=@h."\" :Bookmark [<name>]\n"
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let @h=@h."\" :BookmarkToRoot <name>\n"
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let @h=@h."\" :RevealBookmark <name>\n"
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let @h=@h."\" :OpenBookmark <name>\n"
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let @h=@h."\" :ClearBookmarks [<names>]\n"
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let @h=@h."\" :ClearAllBookmarks\n"
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silent! put h
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elseif g:NERDTreeMinimalUI == 0
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let @h="\" Press ". g:NERDTreeMapHelp ." for help\n"
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silent! put h
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endif
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let @h = old_h
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endfunction
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"FUNCTION: s:UI.new(nerdtree) {{{1
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function! s:UI.New(nerdtree)
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let newObj = copy(self)
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let newObj.nerdtree = a:nerdtree
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return newObj
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endfunction
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"FUNCTION: s:UI.getPath(ln) {{{1
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"Gets the full path to the node that is rendered on the given line number
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"
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"Args:
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"ln: the line number to get the path for
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"
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"Return:
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"A path if a node was selected, {} if nothing is selected.
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"If the 'up a dir' line was selected then the path to the parent of the
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"current root is returned
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function! s:UI.getPath(ln)
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let line = getline(a:ln)
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let rootLine = self.getRootLineNum()
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"check to see if we have the root node
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if a:ln == rootLine
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return b:NERDTreeRoot.path
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endif
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if !g:NERDTreeDirArrows
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" in case called from outside the tree
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if line !~# '^ *[|`'.g:NERDTreeDirArrowExpandable.g:NERDTreeDirArrowCollapsible.' ]' || line =~# '^$'
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return {}
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endif
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endif
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if line ==# s:UI.UpDirLine()
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return b:NERDTreeRoot.path.getParent()
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endif
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let indent = self._indentLevelFor(line)
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"remove the tree parts and the leading space
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let curFile = self._stripMarkup(line, 0)
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let wasdir = 0
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if curFile =~# '/$'
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let wasdir = 1
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let curFile = substitute(curFile, '/\?$', '/', "")
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endif
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let dir = ""
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let lnum = a:ln
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while lnum > 0
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let lnum = lnum - 1
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let curLine = getline(lnum)
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let curLineStripped = self._stripMarkup(curLine, 1)
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"have we reached the top of the tree?
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if lnum == rootLine
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let dir = b:NERDTreeRoot.path.str({'format': 'UI'}) . dir
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break
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endif
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if curLineStripped =~# '/$'
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let lpindent = self._indentLevelFor(curLine)
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if lpindent < indent
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let indent = indent - 1
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let dir = substitute (curLineStripped,'^\\', "", "") . dir
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continue
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endif
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endif
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endwhile
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let curFile = b:NERDTreeRoot.path.drive . dir . curFile
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let toReturn = g:NERDTreePath.New(curFile)
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return toReturn
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endfunction
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"FUNCTION: s:UI.getLineNum(file_node){{{1
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"returns the line number this node is rendered on, or -1 if it isnt rendered
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function! s:UI.getLineNum(file_node)
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"if the node is the root then return the root line no.
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if a:file_node.isRoot()
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return b:NERDTree.ui.getRootLineNum()
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endif
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let totalLines = line("$")
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"the path components we have matched so far
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let pathcomponents = [substitute(b:NERDTreeRoot.path.str({'format': 'UI'}), '/ *$', '', '')]
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"the index of the component we are searching for
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let curPathComponent = 1
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let fullpath = a:file_node.path.str({'format': 'UI'})
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let lnum = b:NERDTree.ui.getRootLineNum()
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while lnum > 0
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let lnum = lnum + 1
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"have we reached the bottom of the tree?
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if lnum ==# totalLines+1
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return -1
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endif
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let curLine = getline(lnum)
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let indent = self._indentLevelFor(curLine)
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if indent ==# curPathComponent
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let curLine = self._stripMarkup(curLine, 1)
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let curPath = join(pathcomponents, '/') . '/' . curLine
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if stridx(fullpath, curPath, 0) ==# 0
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if fullpath ==# curPath || strpart(fullpath, len(curPath)-1,1) ==# '/'
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let curLine = substitute(curLine, '/ *$', '', '')
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call add(pathcomponents, curLine)
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let curPathComponent = curPathComponent + 1
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if fullpath ==# curPath
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return lnum
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endif
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endif
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endif
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endif
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endwhile
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return -1
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endfunction
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"FUNCTION: s:UI.getRootLineNum(){{{1
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"gets the line number of the root node
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function! s:UI.getRootLineNum()
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let rootLine = 1
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while getline(rootLine) !~# '^\(/\|<\)'
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let rootLine = rootLine + 1
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endwhile
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return rootLine
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endfunction
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"FUNCTION: s:UI._indentLevelFor(line) {{{1
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function! s:UI._indentLevelFor(line)
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let level = match(a:line, '[^ \-+~'.g:NERDTreeDirArrowExpandable.g:NERDTreeDirArrowCollapsible.'`|]') / s:UI.IndentWid()
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" check if line includes arrows
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if match(a:line, '['.g:NERDTreeDirArrowExpandable.g:NERDTreeDirArrowCollapsible.']') > -1
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" decrement level as arrow uses 3 ascii chars
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let level = level - 1
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endif
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return level
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endfunction
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"FUNCTION: s:UI.IndentWid() {{{1
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function! s:UI.IndentWid()
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return 2
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endfunction
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"FUNCTION: s:UI.MarkupReg() {{{1
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function! s:UI.MarkupReg()
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if g:NERDTreeDirArrows
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return '^\(['.g:NERDTreeDirArrowExpandable.g:NERDTreeDirArrowCollapsible.'] \| \+['.g:NERDTreeDirArrowExpandable.g:NERDTreeDirArrowCollapsible.'] \| \+\)'
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endif
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return '^[ `|]*[\-+~]'
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endfunction
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"FUNCTION: s:UI._renderBookmarks {{{1
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function! s:UI._renderBookmarks()
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if g:NERDTreeMinimalUI == 0
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call setline(line(".")+1, ">----------Bookmarks----------")
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call cursor(line(".")+1, col("."))
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endif
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for i in g:NERDTreeBookmark.Bookmarks()
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call setline(line(".")+1, i.str())
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call cursor(line(".")+1, col("."))
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endfor
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call setline(line(".")+1, '')
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call cursor(line(".")+1, col("."))
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endfunction
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"FUNCTION: s:UI.restoreScreenState() {{{1
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"
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"Sets the screen state back to what it was when nerdtree#saveScreenState was last
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"called.
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"
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"Assumes the cursor is in the NERDTree window
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function! s:UI.restoreScreenState()
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if !has_key(self, '_screenState')
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return
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endif
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exec("silent vertical resize " . self._screenState['oldWindowSize'])
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let old_scrolloff=&scrolloff
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let &scrolloff=0
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call cursor(self._screenState['oldTopLine'], 0)
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normal! zt
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call setpos(".", self._screenState['oldPos'])
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let &scrolloff=old_scrolloff
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endfunction
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"FUNCTION: s:UI.saveScreenState() {{{1
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"Saves the current cursor position in the current buffer and the window
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"scroll position
|
||
|
|
function! s:UI.saveScreenState()
|
||
|
|
let win = winnr()
|
||
|
|
call g:NERDTree.CursorToTreeWin()
|
||
|
|
let self._screenState = {}
|
||
|
|
let self._screenState['oldPos'] = getpos(".")
|
||
|
|
let self._screenState['oldTopLine'] = line("w0")
|
||
|
|
let self._screenState['oldWindowSize']= winwidth("")
|
||
|
|
call nerdtree#exec(win . "wincmd w")
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
"FUNCTION: s:UI._stripMarkup(line, removeLeadingSpaces){{{1
|
||
|
|
"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:UI._stripMarkup(line, removeLeadingSpaces)
|
||
|
|
let line = a:line
|
||
|
|
"remove the tree parts and the leading space
|
||
|
|
let line = substitute (line, g:NERDTreeUI.MarkupReg(),"","")
|
||
|
|
|
||
|
|
"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\($\| \)', "","")
|
||
|
|
|
||
|
|
"strip off any generic flags
|
||
|
|
let line = substitute (line, '\[[^]]*\]', "","")
|
||
|
|
|
||
|
|
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:UI.render() {{{1
|
||
|
|
function! s:UI.render()
|
||
|
|
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 self._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 self._renderBookmarks()
|
||
|
|
endif
|
||
|
|
|
||
|
|
"add the 'up a dir' line
|
||
|
|
if !g:NERDTreeMinimalUI
|
||
|
|
call setline(line(".")+1, s:UI.UpDirLine())
|
||
|
|
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: UI.renderViewSavingPosition {{{1
|
||
|
|
"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:UI.renderViewSavingPosition()
|
||
|
|
let currentNode = g:NERDTreeFileNode.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 b:NERDTree.render()
|
||
|
|
|
||
|
|
if currentNode != {}
|
||
|
|
call currentNode.putCursorHere(0, 0)
|
||
|
|
endif
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
" FUNCTION: s:UI.toggleIgnoreFilter() {{{1
|
||
|
|
" toggles the use of the NERDTreeIgnore option
|
||
|
|
function! s:UI.toggleIgnoreFilter()
|
||
|
|
let b:NERDTreeIgnoreEnabled = !b:NERDTreeIgnoreEnabled
|
||
|
|
call b:NERDTree.ui.renderViewSavingPosition()
|
||
|
|
call b:NERDTree.ui.centerView()
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
" FUNCTION: s:UI.toggleShowBookmarks() {{{1
|
||
|
|
" toggles the display of bookmarks
|
||
|
|
function! s:UI.toggleShowBookmarks()
|
||
|
|
let b:NERDTreeShowBookmarks = !b:NERDTreeShowBookmarks
|
||
|
|
if b:NERDTreeShowBookmarks
|
||
|
|
call b:NERDTree.render()
|
||
|
|
call g:NERDTree.CursorToBookmarkTable()
|
||
|
|
else
|
||
|
|
call b:NERDTree.ui.renderViewSavingPosition()
|
||
|
|
endif
|
||
|
|
call b:NERDTree.ui.centerView()
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
" FUNCTION: s:UI.toggleShowFiles() {{{1
|
||
|
|
" toggles the display of hidden files
|
||
|
|
function! s:UI.toggleShowFiles()
|
||
|
|
let b:NERDTreeShowFiles = !b:NERDTreeShowFiles
|
||
|
|
call b:NERDTree.ui.renderViewSavingPosition()
|
||
|
|
call b:NERDTree.ui.centerView()
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
" FUNCTION: s:UI.toggleShowHidden() {{{1
|
||
|
|
" toggles the display of hidden files
|
||
|
|
function! s:UI.toggleShowHidden()
|
||
|
|
let b:NERDTreeShowHidden = !b:NERDTreeShowHidden
|
||
|
|
call b:NERDTree.ui.renderViewSavingPosition()
|
||
|
|
call self.centerView()
|
||
|
|
endfunction
|
||
|
|
|
||
|
|
" FUNCTION: s:UI.toggleZoom() {{{1
|
||
|
|
" zoom (maximize/minimize) the NERDTree window
|
||
|
|
function! s:UI.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:UI.UpDirLine() {{{1
|
||
|
|
function! s:UI.UpDirLine()
|
||
|
|
return '.. (up a dir)'
|
||
|
|
endfunction
|