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neotree.el
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neotree.el
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;;; neotree.el --- A tree plugin like NerdTree for Vim
;; Copyright (C) 2014 jaypei
;; Author: jaypei <[email protected]>
;; URL: https://github.com/jaypei/emacs-neotree
;; Version: 0.5
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; To use this file, put something like the following in your
;; ~/.emacs:
;;
;; (add-to-list 'load-path "/directory/containing/neotree/")
;; (require 'neotree)
;;
;; Type M-x neotree to start.
;;
;; To set options for NeoTree, type M-x customize, then select
;; Applications, NeoTree.
;;
;;; Code:
;;
;; Constants
;;
(defconst neo-buffer-name " *NeoTree*"
"Name of the buffer where neotree shows directory contents.")
(defconst neo-dir
(expand-file-name (if load-file-name
(file-name-directory load-file-name)
default-directory)))
(defconst neo-header-height 5)
(eval-and-compile
;; Added in Emacs 24.3
(unless (fboundp 'user-error)
(defalias 'user-error 'error))
;; Added in Emacs 24.3 (mirrors/emacs@b335efc3).
(unless (fboundp 'setq-local)
(defmacro setq-local (var val)
"Set variable VAR to value VAL in current buffer."
(list 'set (list 'make-local-variable (list 'quote var)) val)))
;; Added in Emacs 24.3 (mirrors/emacs@b335efc3).
(unless (fboundp 'defvar-local)
(defmacro defvar-local (var val &optional docstring)
"Define VAR as a buffer-local variable with default value VAL.
Like `defvar' but additionally marks the variable as being automatically
buffer-local wherever it is set."
(declare (debug defvar) (doc-string 3))
(list 'progn (list 'defvar var val docstring)
(list 'make-variable-buffer-local (list 'quote var))))))
;; Add autoload function for vc (#153).
(autoload 'vc-responsible-backend "vc.el")
;;
;; Macros
;;
(defmacro neo-util--to-bool (obj)
"If OBJ is non-nil, return t, else return nil."
`(and ,obj t))
(defmacro neo-global--with-buffer (&rest body)
"Execute the forms in BODY with global NeoTree buffer."
(declare (indent 0) (debug t))
`(let ((neotree-buffer (neo-global--get-buffer)))
(unless (null neotree-buffer)
(with-current-buffer neotree-buffer
,@body))))
(defmacro neo-global--with-window (&rest body)
"Execute the forms in BODY with global NeoTree window."
(declare (indent 0) (debug t))
`(save-selected-window
(neo-global--select-window)
,@body))
(defmacro neo-global--when-window (&rest body)
"Execute the forms in BODY when selected window is NeoTree window."
(declare (indent 0) (debug t))
`(when (eq (selected-window) neo-global--window)
,@body))
(defmacro neo-global--switch-to-buffer ()
"Switch to NeoTree buffer."
`(let ((neotree-buffer (neo-global--get-buffer)))
(unless (null neotree-buffer)
(switch-to-buffer neotree-buffer))))
(defmacro neo-buffer--with-editing-buffer (&rest body)
"Execute BODY in neotree buffer without read-only restriction."
`(let (rlt)
(neo-global--with-buffer
(setq buffer-read-only nil)
(setq rlt (progn ,@body))
(setq buffer-read-only t))
rlt))
(defmacro neo-buffer--with-resizable-window (&rest body)
"Execute BODY in neotree window without `window-size-fixed' restriction."
`(let (rlt)
(neo-global--with-buffer
(neo-buffer--unlock-width))
(setq rlt (progn ,@body))
(neo-global--with-buffer
(neo-buffer--lock-width))
rlt))
(defmacro neotree-make-executor (&rest fn-form)
"Make an open event handler, FN-FORM is event handler form."
(let* ((get-args-fn
(lambda (sym) (or (plist-get fn-form sym) (lambda (&rest _)))))
(file-fn (funcall get-args-fn :file-fn))
(dir-fn (funcall get-args-fn :dir-fn)))
`(lambda (&optional arg)
(interactive "P")
(neo-global--select-window)
(neo-buffer--execute arg ,file-fn ,dir-fn))))
;;
;; Customization
;;
(defgroup neotree nil
"Options for neotree."
:prefix "neo-"
:group 'files)
(defgroup neotree-vc-options nil
"Neotree-VC customizations."
:prefix "neo-vc-"
:group 'neotree
:link '(info-link "(neotree)Configuration"))
(defgroup neotree-confirmations nil
"Neotree confirmation customizations."
:prefix "neo-confirm-"
:group 'neotree)
(defcustom neo-window-position 'left
"*The position of NeoTree window."
:group 'neotree
:type '(choice (const left)
(const right)))
(defcustom neo-display-action '(neo-default-display-fn)
"*Action to use for displaying NeoTree window.
If you change the action so it doesn't use
`neo-default-display-fn', then other variables such as
`neo-window-position' won't be respected when opening NeoTree
window."
:type 'sexp
:group 'neotree)
(defcustom neo-create-file-auto-open nil
"*If non-nil, the file will auto open when created."
:type 'boolean
:group 'neotree)
(defcustom neo-banner-message nil
"*The banner message of neotree window."
:type 'string
:group 'neotree)
(defcustom neo-show-updir-line t
"*If non-nil, show the updir line (..)."
:type 'boolean
:group 'neotree)
(defcustom neo-theme 'classic
"*The tree style to display.
`classic' use icon to display, it only it suitable for GUI mode.
`ascii' is the simplest style, it will use +/- to display the fold state,
it suitable for terminal.
`arrow' use unicode arrow.
`nerd' use the nerdtree indentation mode and arrow."
:group 'neotree
:type '(choice (const classic)
(const ascii)
(const arrow)
(const icons)
(const nerd)))
(defcustom neo-mode-line-type 'neotree
"*The mode-line type to display, `default' is a non-modified mode-line, \
`neotree' is a compact mode-line that shows useful information about the
current node like the parent directory and the number of nodes,
`custom' uses the format stored in `neo-mode-line-custom-format',
`none' hide the mode-line."
:group 'neotree
:type '(choice (const default)
(const neotree)
(const custom)
(const none)))
(defcustom neo-mode-line-custom-format nil
"*If `neo-mode-line-type' is set to `custom', this variable specifiy \
the mode-line format."
:type 'sexp
:group 'neotree)
(defcustom neo-smart-open nil
"*If non-nil, every time when the neotree window is opened, it will try to find current file and jump to node."
:type 'boolean
:group 'neotree)
(defcustom neo-show-hidden-files nil
"*If non-nil, the hidden files are shown by default."
:type 'boolean
:group 'neotree)
(defcustom neo-window-width 25
"*Specifies the width of the NeoTree window."
:type 'integer
:group 'neotree)
(defcustom neo-window-fixed-size t
"*If the neotree windows is fixed, it won't be resize when rebalance windows."
:type 'boolean
:group 'neotree)
(defcustom neo-keymap-style 'default
"*The default keybindings for neotree-mode-map."
:group 'neotree
:type '(choice (const default)
(const concise)))
(defcustom neo-cwd-line-style 'text
"*The default header style."
:group 'neotree
:type '(choice (const text)
(const button)))
(defcustom neo-click-changes-root nil
"*If non-nil, clicking on a directory will change the current root to the directory."
:type 'boolean
:group 'neotree)
(defcustom neo-auto-indent-point nil
"*If non-nil the point is autmotically put on the first letter of a node."
:type 'boolean
:group 'neotree)
(defcustom neo-hidden-regexp-list
'("^\\." "\\.pyc$" "~$" "^#.*#$" "\\.elc$")
"*The regexp list matching hidden files."
:type '(repeat (choice regexp))
:group 'neotree)
(defcustom neo-enter-hook nil
"Functions to run if enter node occured."
:type 'hook
:group 'neotree)
(defcustom neo-after-create-hook nil
"Hooks called after creating the neotree buffer."
:type 'hook
:group 'neotree)
(defcustom neo-vc-integration nil
"If non-nil, show VC status."
:group 'neotree-vc
:type '(set (const :tag "Use different faces" face)
(const :tag "Use different characters" char)))
(defcustom neo-vc-state-char-alist
'((up-to-date . ?\s)
(edited . ?E)
(added . ?+)
(removed . ?-)
(missing . ?!)
(needs-merge . ?M)
(conflict . ?!)
(unlocked-changes . ?!)
(needs-update . ?U)
(ignored . ?\s)
(user . ?U)
(unregistered . ?\s)
(nil . ?\s))
"Alist of vc-states to indicator characters.
This variable is used in `neo-vc-for-node' when
`neo-vc-integration' contains `char'."
:group 'neotree-vc
:type '(alist :key-type symbol
:value-type character))
(defcustom neo-confirm-change-root 'yes-or-no-p
"Confirmation asking for permission to change root if file was not found in root path."
:type '(choice (function-item :tag "Verbose" yes-or-no-p)
(function-item :tag "Succinct" y-or-n-p)
(function-item :tag "Off" off-p))
:group 'neotree-confirmations)
(defcustom neo-confirm-create-file 'yes-or-no-p
"Confirmation asking whether *NeoTree* should create a file."
:type '(choice (function-item :tag "Verbose" yes-or-no-p)
(function-item :tag "Succinct" y-or-n-p)
(function-item :tag "Off" off-p))
:group 'neotree-confirmations)
(defcustom neo-confirm-create-directory 'yes-or-no-p
"Confirmation asking whether *NeoTree* should create a directory."
:type '(choice (function-item :tag "Verbose" yes-or-no-p)
(function-item :tag "Succinct" y-or-n-p)
(function-item :tag "Off" off-p))
:group 'neotree-confirmations)
(defcustom neo-confirm-delete-file 'yes-or-no-p
"Confirmation asking whether *NeoTree* should delete the file."
:type '(choice (function-item :tag "Verbose" yes-or-no-p)
(function-item :tag "Succinct" y-or-n-p)
(function-item :tag "Off" off-p))
:group 'neotree-confirmations)
(defcustom neo-confirm-delete-directory-recursively 'yes-or-no-p
"Confirmation asking whether the directory should be deleted recursively."
:type '(choice (function-item :tag "Verbose" yes-or-no-p)
(function-item :tag "Succinct" y-or-n-p)
(function-item :tag "Off" off-p))
:group 'neotree-confirmations)
(defcustom neo-confirm-kill-buffers-for-files-in-directory 'yes-or-no-p
"Confirmation asking whether *NeoTree* should kill buffers for the directory in question."
:type '(choice (function-item :tag "Verbose" yes-or-no-p)
(function-item :tag "Succinct" y-or-n-p)
(function-item :tag "Off" off-p))
:group 'neotree-confirmations)
(defcustom neo-toggle-window-keep-p nil
"If not nil, not switch to *NeoTree* buffer when executing `neotree-toggle'."
:type 'boolean
:group 'neotree)
(defcustom neo-force-change-root nil
"If not nil, do not prompt when switching root."
:type 'boolean
:group 'neotree)
;;
;; Faces
;;
(defface neo-banner-face
'((((background dark)) (:foreground "lightblue" :weight bold))
(t (:foreground "DarkMagenta")))
"*Face used for the banner in neotree buffer."
:group 'neotree :group 'font-lock-highlighting-faces)
(defvar neo-banner-face 'neo-banner-face)
(defface neo-header-face
'((((background dark)) (:foreground "White"))
(t (:foreground "DarkMagenta")))
"*Face used for the header in neotree buffer."
:group 'neotree :group 'font-lock-highlighting-faces)
(defvar neo-header-face 'neo-header-face)
(defface neo-root-dir-face
'((((background dark)) (:foreground "lightblue" :weight bold))
(t (:foreground "DarkMagenta")))
"*Face used for the root dir in neotree buffer."
:group 'neotree :group 'font-lock-highlighting-faces)
(defvar neo-root-dir-face 'neo-root-dir-face)
(defface neo-dir-link-face
'((((background dark)) (:foreground "DeepSkyBlue"))
(t (:foreground "MediumBlue")))
"*Face used for expand sign [+] in neotree buffer."
:group 'neotree :group 'font-lock-highlighting-faces)
(defvar neo-dir-link-face 'neo-dir-link-face)
(defface neo-file-link-face
'((((background dark)) (:foreground "White"))
(t (:foreground "Black")))
"*Face used for open file/dir in neotree buffer."
:group 'neotree :group 'font-lock-highlighting-faces)
(defvar neo-file-link-face 'neo-file-link-face)
(defface neo-button-face
'((t (:underline nil)))
"*Face used for open file/dir in neotree buffer."
:group 'neotree :group 'font-lock-highlighting-faces)
(defvar neo-button-face 'neo-button-face)
(defface neo-expand-btn-face
'((((background dark)) (:foreground "SkyBlue"))
(t (:foreground "DarkCyan")))
"*Face used for open file/dir in neotree buffer."
:group 'neotree :group 'font-lock-highlighting-faces)
(defvar neo-expand-btn-face 'neo-expand-btn-face)
(defface neo-vc-default-face
'((((background dark)) (:foreground "White"))
(t (:foreground "Black")))
"*Face used for unknown files in the neotree buffer.
Used only when \(vc-state node\) returns nil."
:group 'neotree-vc :group 'font-lock-highlighting-faces)
(defvar neo-vc-default-face 'neo-vc-default-face)
(defface neo-vc-user-face
'((t (:foreground "Red" :slant italic)))
"*Face used for user-locked files in the neotree buffer."
:group 'neotree-vc :group 'font-lock-highlighting-faces)
(defvar neo-vc-user-face 'neo-vc-user-face)
(defface neo-vc-up-to-date-face
'((((background dark)) (:foreground "LightGray"))
(t (:foreground "DarkGray")))
"*Face used for vc-up-to-date files in the neotree buffer."
:group 'neotree-vc :group 'font-lock-highlighting-faces)
(defvar neo-vc-up-to-date-face 'neo-vc-up-to-date-face)
(defface neo-vc-edited-face
'((((background dark)) (:foreground "Magenta"))
(t (:foreground "DarkMagenta")))
"*Face used for vc-edited files in the neotree buffer."
:group 'neotree-vc :group 'font-lock-highlighting-faces)
(defvar neo-vc-edited-face 'neo-vc-edited-face)
(defface neo-vc-needs-update-face
'((t (:underline t)))
"*Face used for vc-needs-update files in the neotree buffer."
:group 'neotree-vc :group 'font-lock-highlighting-faces)
(defvar neo-vc-needs-update-face 'neo-vc-needs-update-face)
(defface neo-vc-needs-merge-face
'((((background dark)) (:foreground "Red1"))
(t (:foreground "Red3")))
"*Face used for vc-needs-merge files in the neotree buffer."
:group 'neotree-vc :group 'font-lock-highlighting-faces)
(defvar neo-vc-needs-merge-face 'neo-vc-needs-merge-face)
(defface neo-vc-unlocked-changes-face
'((t (:foreground "Red" :background "Blue")))
"*Face used for vc-unlocked-changes files in the neotree buffer."
:group 'neotree-vc :group 'font-lock-highlighting-faces)
(defvar neo-vc-unlocked-changes-face 'neo-vc-unlocked-changes-face)
(defface neo-vc-added-face
'((((background dark)) (:foreground "LightGreen"))
(t (:foreground "DarkGreen")))
"*Face used for vc-added files in the neotree buffer."
:group 'neotree-vc :group 'font-lock-highlighting-faces)
(defvar neo-vc-added-face 'neo-vc-added-face)
(defface neo-vc-removed-face
'((t (:strike-through t)))
"*Face used for vc-removed files in the neotree buffer."
:group 'neotree-vc :group 'font-lock-highlighting-faces)
(defvar neo-vc-removed-face 'neo-vc-removed-face)
(defface neo-vc-conflict-face
'((((background dark)) (:foreground "Red1"))
(t (:foreground "Red3")))
"*Face used for vc-conflict files in the neotree buffer."
:group 'neotree-vc :group 'font-lock-highlighting-faces)
(defvar neo-vc-conflict-face 'neo-vc-conflict-face)
(defface neo-vc-missing-face
'((((background dark)) (:foreground "Red1"))
(t (:foreground "Red3")))
"*Face used for vc-missing files in the neotree buffer."
:group 'neotree-vc :group 'font-lock-highlighting-faces)
(defvar neo-vc-missing-face 'neo-vc-missing-face)
(defface neo-vc-ignored-face
'((((background dark)) (:foreground "DarkGrey"))
(t (:foreground "LightGray")))
"*Face used for vc-ignored files in the neotree buffer."
:group 'neotree-vc :group 'font-lock-highlighting-faces)
(defvar neo-vc-ignored-face 'neo-vc-ignored-face)
(defface neo-vc-unregistered-face
nil
"*Face used for vc-unregistered files in the neotree buffer."
:group 'neotree-vc :group 'font-lock-highlighting-faces)
(defvar neo-vc-unregistered-face 'neo-vc-unregistered-face)
;;
;; Variables
;;
(defvar neo-global--buffer nil)
(defvar neo-global--window nil)
(defvar neo-mode-line-format
(list
'(:eval
(let* ((fname (neo-buffer--get-filename-current-line))
(current (if fname fname neo-buffer--start-node))
(parent (if fname (file-name-directory current) current))
(nodes (neo-buffer--get-nodes parent))
(dirs (car nodes))
(files (cdr nodes))
(ndirs (length dirs))
(nfiles (length files))
(index
(when fname
(1+ (if (file-directory-p current)
(neo-buffer--get-node-index current dirs)
(+ ndirs (neo-buffer--get-node-index current files)))))))
(neo-mode-line--compute-format parent index ndirs nfiles))))
"Neotree mode-line displaying information on the current node.
This mode-line format is used if `neo-mode-line-type' is set to `neotree'")
(defvar-local neo-buffer--start-node nil
"Start node(i.e. directory) for the window.")
(defvar-local neo-buffer--start-line nil
"Index of the start line of the root.")
(defvar-local neo-buffer--cursor-pos (cons nil 1)
"To save the cursor position.
The car of the pair will store fullpath, and cdr will store line number.")
(defvar-local neo-buffer--last-window-pos (cons nil 1)
"To save the scroll position for NeoTree window.")
(defvar-local neo-buffer--show-hidden-file-p nil
"Show hidden nodes in tree.")
(defvar-local neo-buffer--expanded-node-list nil
"A list of expanded dir nodes.")
(defvar-local neo-buffer--node-list nil
"The model of current NeoTree buffer.")
(defvar-local neo-buffer--node-list-1 nil
"The model of current NeoTree buffer (temp).")
;;
;; Major mode definitions
;;
(defvar neotree-file-button-keymap
(let ((map (make-sparse-keymap)))
(define-key map [mouse-2]
(neotree-make-executor
:file-fn 'neo-open-file))
map)
"Keymap for file-node button.")
(defvar neotree-dir-button-keymap
(let ((map (make-sparse-keymap)))
(define-key map [mouse-2]
(neotree-make-executor :dir-fn 'neo-open-dir))
map)
"Keymap for dir-node button.")
(defvar neotree-mode-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "TAB") (neotree-make-executor
:dir-fn 'neo-open-dir))
(define-key map (kbd "RET") (neotree-make-executor
:file-fn 'neo-open-file
:dir-fn 'neo-open-dir))
(define-key map (kbd "|") (neotree-make-executor
:file-fn 'neo-open-file-vertical-split))
(define-key map (kbd "-") (neotree-make-executor
:file-fn 'neo-open-file-horizontal-split))
(define-key map (kbd "a") (neotree-make-executor
:file-fn 'neo-open-file-ace-window))
(define-key map (kbd "d") (neotree-make-executor
:dir-fn 'neo-open-dired))
(define-key map (kbd "SPC") 'neotree-quick-look)
(define-key map (kbd "g") 'neotree-refresh)
(define-key map (kbd "q") 'neotree-hide)
(define-key map (kbd "p") 'neotree-previous-line)
(define-key map (kbd "C-p") 'neotree-previous-line)
(define-key map (kbd "n") 'neotree-next-line)
(define-key map (kbd "C-n") 'neotree-next-line)
(define-key map (kbd "A") 'neotree-stretch-toggle)
(define-key map (kbd "U") 'neotree-select-up-node)
(define-key map (kbd "D") 'neotree-select-down-node)
(define-key map (kbd "H") 'neotree-hidden-file-toggle)
(define-key map (kbd "S") 'neotree-select-previous-sibling-node)
(define-key map (kbd "s") 'neotree-select-next-sibling-node)
(define-key map (kbd "C-x C-f") 'find-file-other-window)
(define-key map (kbd "C-x 1") 'neotree-empty-fn)
(define-key map (kbd "C-x 2") 'neotree-empty-fn)
(define-key map (kbd "C-x 3") 'neotree-empty-fn)
(define-key map (kbd "C-c C-f") 'find-file-other-window)
(define-key map (kbd "C-c C-c") 'neotree-change-root)
(define-key map (kbd "C-c c") 'neotree-dir)
(cond
((eq neo-keymap-style 'default)
(define-key map (kbd "C-c C-n") 'neotree-create-node)
(define-key map (kbd "C-c C-d") 'neotree-delete-node)
(define-key map (kbd "C-c C-r") 'neotree-rename-node)
(define-key map (kbd "C-c C-p") 'neotree-copy-node))
((eq neo-keymap-style 'concise)
(define-key map (kbd "C") 'neotree-change-root)
(define-key map (kbd "c") 'neotree-create-node)
(define-key map (kbd "+") 'neotree-create-node)
(define-key map (kbd "d") 'neotree-delete-node)
(define-key map (kbd "r") 'neotree-rename-node)
(define-key map (kbd "p") 'neotree-create-node)
(define-key map (kbd "e") 'neotree-enter)))
map)
"Keymap for `neotree-mode'.")
(define-derived-mode neotree-mode special-mode "NeoTree"
"A major mode for displaying the directory tree in text mode."
(setq indent-tabs-mode nil ; only spaces
buffer-read-only t ; read only
truncate-lines -1
neo-buffer--show-hidden-file-p neo-show-hidden-files)
(pcase neo-mode-line-type
(`neotree
(setq-local mode-line-format neo-mode-line-format)
(add-hook 'post-command-hook 'force-mode-line-update nil t))
(`none (setq-local mode-line-format nil))
(`custom
(setq-local mode-line-format neo-mode-line-custom-format)
(add-hook 'post-command-hook 'force-mode-line-update nil t))
(_ nil))
;; fix for electric-indent-mode
;; for emacs 24.4
(if (fboundp 'electric-indent-local-mode)
(electric-indent-local-mode -1)
;; for emacs 24.3 or less
(add-hook 'electric-indent-functions
(lambda (arg) 'no-indent) nil 'local))
(when neo-auto-indent-point
(add-hook 'post-command-hook 'neo-hook--node-first-letter nil t)))
;;
;; Global methods
;;
(defun neo-global--window-exists-p ()
"Return non-nil if neotree window exists."
(and (not (null (window-buffer neo-global--window)))
(eql (window-buffer neo-global--window) (neo-global--get-buffer))))
(defun neo-global--select-window ()
"Select the NeoTree window."
(interactive)
(let ((window (neo-global--get-window t)))
(select-window window)))
(defun neo-global--get-window (&optional auto-create-p)
"Return the neotree window if it exists, else return nil.
But when the neotree window does not exist and AUTO-CREATE-P is non-nil,
it will create the neotree window and return it."
(unless (neo-global--window-exists-p)
(setf neo-global--window nil))
(when (and (null neo-global--window)
auto-create-p)
(setq neo-global--window
(neo-global--create-window)))
neo-global--window)
(defun neo-default-display-fn (buffer _alist)
"Display BUFFER to the left or right of the root window.
The side is decided according to `neo-window-position'.
The root window is the root window of the selected frame.
_ALIST is ignored."
(let ((window-pos (if (eq neo-window-position 'left) 'left 'right)))
(display-buffer-in-side-window buffer `((side . ,window-pos)))))
(defun neo-global--create-window ()
"Create global neotree window."
(let ((window nil)
(buffer (neo-global--get-buffer t)))
(setq window
(select-window
(display-buffer buffer neo-display-action)))
(neo-window--init window buffer)
(neo-global--attach)
(neo-global--reset-width)
window))
(defun neo-global--get-buffer (&optional init-p)
"Return the global neotree buffer if it exists.
If INIT-P is non-nil and global NeoTree buffer not exists, then create it."
(unless (equal (buffer-name neo-global--buffer)
neo-buffer-name)
(setf neo-global--buffer nil))
(when (and init-p
(null neo-global--buffer))
(save-window-excursion
(setq neo-global--buffer
(neo-buffer--create))))
neo-global--buffer)
(defun neo-global--file-in-root-p (path)
"Return non-nil if PATH in root dir."
(neo-global--with-buffer
(and (not (null neo-buffer--start-node))
(neo-path--file-in-directory-p path neo-buffer--start-node))))
(defun neo-global--alone-p ()
"Check whether the global neotree window is alone with some other window."
(let ((windows (window-list)))
(and (= (length windows)
2)
(member neo-global--window windows))))
(defun neo-global--open ()
"Show the NeoTree window."
(let ((valid-start-node-p nil))
(neo-global--with-buffer
(setf valid-start-node-p (neo-buffer--valid-start-node-p)))
(if (not valid-start-node-p)
(neo-global--open-dir (neo-path--get-working-dir))
(neo-global--get-window t))))
(defun neo-global--open-dir (path)
"Show the NeoTree window, and change root to PATH."
(neo-global--get-window t)
(neo-global--with-buffer
(neo-buffer--change-root path)))
(defun neo-global--open-and-find (path)
"Quick select node which specified PATH in NeoTree."
(let ((npath path)
root-dir)
(when (null npath)
(throw 'invalid-path "Invalid path to select."))
(setq root-dir (if (file-directory-p npath)
npath (neo-path--updir npath)))
(when (or (not (neo-global--window-exists-p))
(not (neo-global--file-in-root-p npath)))
(neo-global--open-dir root-dir))
(neo-global--with-window
(neo-buffer--select-file-node npath t))))
(defun neo-global--select-mru-window (arg)
"Create or find a window to select when open a file node.
The description of ARG is in `neotree-enter'."
(when (eq (safe-length (window-list)) 1)
(neo-buffer--with-resizable-window
(split-window-horizontally)))
(neo-global--when-window
(neo-window--zoom 'minimize))
;; select target window
(cond
;; select window with winum
((and (integerp arg)
(bound-and-true-p winum-mode)
(fboundp 'winum-select-window-by-number))
(winum-select-window-by-number arg))
;; select window with window numbering
((and (integerp arg)
(boundp 'window-numbering-mode)
(symbol-value window-numbering-mode)
(fboundp 'select-window-by-number))
(select-window-by-number arg))
;; open node in a new vertically split window
((and (stringp arg) (string= arg "a")
(fboundp 'ace-select-window))
(ace-select-window))
((and (stringp arg) (string= arg "|"))
(select-window (get-mru-window))
(split-window-right)
(windmove-right))
;; open node in a new horizontally split window
((and (stringp arg) (string= arg "-"))
(select-window (get-mru-window))
(split-window-below)
(windmove-down)))
;; open node in last active window
(select-window (get-mru-window)))
(defun neo-global--detach ()
"Detach the global neotree buffer."
(neo-global--with-buffer
(neo-buffer--unlock-width))
(setq neo-global--buffer nil)
(setq neo-global--window nil))
(defun neo-global--attach ()
"Attach the global neotree buffer"
(setq neo-global--buffer (get-buffer neo-buffer-name))
(setq neo-global--window (get-buffer-window
neo-global--buffer))
(neo-global--with-buffer
(neo-buffer--lock-width))
(run-hook-with-args 'neo-after-create-hook '(window)))
(defun neo-global--set-window-width (width)
"Set neotree window width to WIDTH."
(neo-global--with-window
(neo-buffer--with-resizable-window
(neo-util--set-window-width (selected-window) width))))
(defun neo-global--reset-width ()
"Set neotree window width to `neo-window-width'."
(neo-global--set-window-width neo-window-width))
;;
;; Advices
;;
(defadvice mouse-drag-vertical-line
(around neotree-drag-vertical-line (start-event) activate)
"Drag and drop is not affected by the lock."
(neo-buffer--with-resizable-window
ad-do-it))
(defadvice balance-windows
(around neotree-balance-windows activate)
"Fix neotree inhibits balance-windows."
(if (neo-global--window-exists-p)
(let (old-width)
(neo-global--with-window
(setq old-width (window-width)))
(neo-buffer--with-resizable-window
ad-do-it)
(neo-global--with-window
(neo-global--set-window-width old-width)))
ad-do-it))
(eval-after-load 'popwin
'(progn
(defadvice popwin:create-popup-window
(around neotree/popwin-popup-buffer activate)
(let ((neo-exists-p (neo-global--window-exists-p)))
(when neo-exists-p
(neo-global--detach))
ad-do-it
(when neo-exists-p
(neo-global--attach)
(neo-global--reset-width))))
(defadvice popwin:close-popup-window
(around neotree/popwin-close-popup-window activate)
(let ((neo-exists-p (neo-global--window-exists-p)))
(when neo-exists-p
(neo-global--detach))
ad-do-it
(when neo-exists-p
(neo-global--attach)
(neo-global--reset-width))))))
;;
;; Hooks
;;
(defun neo-hook--node-first-letter ()
"Move point to the first letter of the current node."
(when (or (eq this-command 'next-line)
(eq this-command 'previous-line))
(neo-point-auto-indent)))
;;
;; Util methods
;;
(defun neo-util--filter (condp lst)
"Apply CONDP to elements of LST keeping those that return non-nil.
Example:
(neo-util--filter 'symbolp '(a \"b\" 3 d4))
=> (a d4)
This procedure does not work when CONDP is the `null' function."
(delq nil
(mapcar (lambda (x) (and (funcall condp x) x)) lst)))
(defun neo-util--find (where which)
"Find element of the list WHERE matching predicate WHICH."
(catch 'found
(dolist (elt where)
(when (funcall which elt)
(throw 'found elt)))
nil))
(defun neo-util--make-printable-string (string)
"Strip newline character from STRING, like 'Icon\n'."
(replace-regexp-in-string "\n" "" string))
(defun neo-util--walk-dir (path)
"Return the subdirectories and subfiles of the PATH."
(let* ((full-path (neo-path--file-truename path)))
(condition-case nil
(directory-files
path 'full directory-files-no-dot-files-regexp)
('file-error
(message "Walk directory %S failed." path)
nil))))
(defun neo-util--hidden-path-filter (node)
"A filter function, if the NODE can not match each item in \
`neo-hidden-regexp-list', return t."
(if (not neo-buffer--show-hidden-file-p)
(let ((shortname (neo-path--file-short-name node)))
(null (neo-util--filter
(lambda (x) (not (null (string-match-p x shortname))))
neo-hidden-regexp-list)))
node))
(defun neo-str--trim-left (s)
"Remove whitespace at the beginning of S."
(if (string-match "\\`[ \t\n\r]+" s)
(replace-match "" t t s)
s))
(defun neo-str--trim-right (s)
"Remove whitespace at the end of S."
(if (string-match "[ \t\n\r]+\\'" s)
(replace-match "" t t s)
s))
(defun neo-str--trim (s)
"Remove whitespace at the beginning and end of S."
(neo-str--trim-left (neo-str--trim-right s)))
(defun neo-path--expand-name (path &optional current-dir)
(or (if (file-name-absolute-p path) path)
(let ((r-path path))
(setq r-path (substitute-in-file-name r-path))
(setq r-path (expand-file-name r-path current-dir))
r-path)))
(defun neo-path--shorten (path len)
"Shorten a given PATH to a specified LEN.
This is needed for paths, which are to long for the window to display
completely. The function cuts of the first part of the path to remain
the last folder (the current one)."
(let ((result
(if (> (length path) len)
(concat "<" (substring path (- (- len 2))))
path)))
(when result
(decode-coding-string result 'utf-8))))
(defun neo-path--insert-chroot-button (label path face)
(insert-button
label
'action '(lambda (x) (neotree-change-root))
'follow-link t
'face face
'neo-full-path path))
(defun neo-path--insert-header-buttonized (path)
"Shortens the PATH to (window-body-width) and displays any \
visible remains as buttons that, when clicked, navigate to that
parent directory."
(let* ((dirs (reverse (cl-maplist 'identity (reverse (split-string path "/" :omitnulls)))))
(last (car-safe (car-safe (last dirs)))))
(neo-path--insert-chroot-button "/" "/" 'neo-root-dir-face)
(dolist (dir dirs)
(if (string= (car dir) last)
(neo-buffer--insert-with-face last 'neo-root-dir-face)
(neo-path--insert-chroot-button
(concat (car dir) "/")
(apply 'neo-path--join (cons "/" (reverse dir)))
'neo-root-dir-face))))
;;shorten the line if need be
(when (> (current-column) (window-body-width))
(forward-char (- (window-body-width)))
(delete-region (point-at-bol) (point))
(let* ((button (button-at (point)))
(path (if button (overlay-get button 'neo-full-path) "/")))
(neo-path--insert-chroot-button "<" path 'neo-root-dir-face))
(end-of-line)))
(defun neo-path--updir (path)
(let ((r-path (neo-path--expand-name path)))
(if (and (> (length r-path) 0)
(equal (substring r-path -1) "/"))
(setq r-path (substring r-path 0 -1)))
(if (eq (length r-path) 0)
(setq r-path "/"))
(directory-file-name
(file-name-directory r-path))))
(defun neo-path--join (root &rest dirs)
"Joins a series of directories together with ROOT and DIRS.
Like Python's os.path.join,
(neo-path--join \"/tmp\" \"a\" \"b\" \"c\") => /tmp/a/b/c ."
(or (if (not dirs) root)
(let ((tdir (car dirs))
(epath nil))
(setq epath