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emacs/code/elpa/helm-20220911.1317/helm-imenu.el

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;;; helm-imenu.el --- Helm interface for Imenu -*- lexical-binding: t -*-
;; Copyright (C) 2012 ~ 2021 Thierry Volpiatto
;; 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/>.
;;; Code:
(require 'cl-lib)
(require 'helm)
(require 'helm-lib)
(require 'imenu)
(require 'helm-utils)
(require 'helm-help)
(defvar all-the-icons-default-adjust)
(defvar all-the-icons-scale-factor)
(declare-function which-function "which-func")
(declare-function all-the-icons-material "ext:all-the-icons.el")
(declare-function all-the-icons-octicon "ext:all-the-icons.el")
(declare-function all-the-icons-faicon "ext:all-the-icons.el")
(declare-function all-the-icons-wicon "ext:all-the-icons.el")
(defgroup helm-imenu nil
"Imenu related libraries and applications for Helm."
:group 'helm)
(defcustom helm-imenu-delimiter " / "
"Delimit types of candidates and their value in `helm-buffer'."
:group 'helm-imenu
:type 'string)
(defcustom helm-imenu-execute-action-at-once-if-one
#'helm-imenu--execute-action-at-once-p
"Goto the candidate when only one is remaining."
:group 'helm-imenu
:type 'function)
(defcustom helm-imenu-all-buffer-assoc nil
"Major mode association alist for `helm-imenu-in-all-buffers'.
Allow `helm-imenu-in-all-buffers' searching in these associated
buffers even if they are not derived from each other. The alist
is bidirectional, i.e. no need to add \\='((foo . bar) (bar . foo)),
only \\='((foo . bar)) is needed."
:type '(alist :key-type symbol :value-type symbol)
:group 'helm-imenu)
(defcustom helm-imenu-in-all-buffers-separate-sources t
"Display imenu index of each buffer in its own source when non-nil.
When nil all candidates are displayed in a single source.
NOTE: Each source will have as name \"Imenu <buffer-name>\".
`helm-source-imenu-all' will not be set, however it will continue
to be used as a flag for using default as input. If you do not
want this behavior, remove it from
`helm-sources-using-default-as-input' even if not using a single
source to display imenu in all buffers."
:type 'boolean
:group 'helm-imenu)
(defcustom helm-imenu-type-faces
'(("^Variables$" . font-lock-variable-name-face)
("^\\(Function\\|Functions\\|Defuns\\)$" . font-lock-function-name-face)
("^\\(Types\\|Provides\\|Requires\\|Classes\\|Class\\|Includes\\|Imports\\|Misc\\|Code\\)$" . font-lock-type-face))
"Faces for showing type in helm-imenu.
This is a list of cons cells. The cdr of each cell is a face to
be used, and it can also just be like \\='(:foreground
\"yellow\"). Each car is a regexp match pattern of the imenu type
string."
:group 'helm-faces
:type '(repeat
(cons
(regexp :tag "Imenu type regexp pattern")
(sexp :tag "Face"))))
(defcustom helm-imenu-extra-modes nil
"Extra modes where `helm-imenu-in-all-buffers' should look into."
:group 'helm-imenu
:type '(repeat symbol))
(defcustom helm-imenu-hide-item-type-name nil
"Hide display name of imenu item type along with the icon when non nil.
This value can be toggled with \\<helm-imenu-map>\\[helm-imenu-toggle-type-view]."
:group 'helm-imenu
:type 'boolean)
(defcustom helm-imenu-use-icon nil
"Display an icon from all-the-icons package when non nil."
:group 'helm-imenu
:type 'boolean)
(defcustom helm-imenu-icon-type-alist
'(("Array" . (all-the-icons-material "crop" :face font-lock-builtin-face))
("Array" . (all-the-icons-material "crop" :face font-lock-builtin-face))
("Boolean" . (all-the-icons-material "crop" :face font-lock-builtin-face))
("Boolean" . (all-the-icons-material "crop" :face font-lock-builtin-face))
("Class" . (all-the-icons-octicon "package" :face font-lock-type-face))
("Class" . (all-the-icons-octicon "package" :face font-lock-type-face))
("Color" . (all-the-icons-material "color_lens" :face font-lock-builtin-face))
("Colors" . (all-the-icons-material "color_lens" :face font-lock-builtin-face))
("Constant" . (all-the-icons-material "crop" :face font-lock-builtin-face))
("Constants" . (all-the-icons-material "crop" :face font-lock-builtin-face))
("Constructor" . (all-the-icons-faicon "cube" :face font-lock-function-name-face))
("Constructors" . (all-the-icons-faicon "cube" :face font-lock-function-name-face))
("Enum Member" . (all-the-icons-octicon "three-bars" :face font-lock-type-face))
("Enum Members" . (all-the-icons-octicon "three-bars" :face font-lock-type-face))
("Enum" . (all-the-icons-faicon "cog" :face font-lock-type-face))
("Enums" . (all-the-icons-faicon "cog" :face font-lock-type-face))
("Event" . (all-the-icons-wicon "lightning" :face font-lock-builtin-face))
("Events" . (all-the-icons-wicon "lightning" :face font-lock-builtin-face))
("Field" . (all-the-icons-octicon "three-bars" :face font-lock-type-face))
("Fields" . (all-the-icons-octicon "three-bars" :face font-lock-type-face))
("File" . (all-the-icons-faicon "file" :face font-lock-variable-name-face))
("Files" . (all-the-icons-faicon "file" :face font-lock-variable-name-face))
("Folder" . (all-the-icons-faicon "folder" :face font-lock-variable-name-face))
("Folders" . (all-the-icons-faicon "folder" :face font-lock-variable-name-face))
("Interface" . (all-the-icons-octicon "package" :face font-lock-builtin-face))
("Interfaces" . (all-the-icons-octicon "package" :face font-lock-builtin-face))
("Keyword" . (all-the-icons-octicon "key" :face font-lock-builtin-face))
("Keywords" . (all-the-icons-octicon "key" :face font-lock-builtin-face))
("Method" . (all-the-icons-faicon "cube" :face font-lock-function-name-face))
("Methods" . (all-the-icons-faicon "cube" :face font-lock-function-name-face))
("Defun" . (all-the-icons-faicon "cube" :face font-lock-function-name-face))
("Defuns" . (all-the-icons-faicon "cube" :face font-lock-function-name-face))
("Fn" . (all-the-icons-faicon "cube" :face font-lock-function-name-face))
("Fns" . (all-the-icons-faicon "cube" :face font-lock-function-name-face))
("Function" . (all-the-icons-faicon "cube" :face font-lock-function-name-face))
("Functions" . (all-the-icons-faicon "cube" :face font-lock-function-name-face))
("Misc" . (all-the-icons-faicon "globe" :face font-lock-function-name-face))
("Miscs" . (all-the-icons-faicon "globe" :face font-lock-function-name-face))
("Module" . (all-the-icons-faicon "angle-double-right" :face font-lock-builtin-face))
("Modules" . (all-the-icons-faicon "angle-double-right" :face font-lock-builtin-face))
("Numeric" . (all-the-icons-material "crop" :face font-lock-builtin-face))
("Numeric" . (all-the-icons-material "crop" :face font-lock-builtin-face))
("Object" . (all-the-icons-faicon "angle-double-right" :face font-lock-builtin-face))
("Objects" . (all-the-icons-faicon "angle-double-right" :face font-lock-builtin-face))
("Operator" . (all-the-icons-faicon "calculator" :face font-lock-builtin-face))
("Operators" . (all-the-icons-faicon "calculator" :face font-lock-builtin-face))
("Property" . (all-the-icons-octicon "book" :face font-lock-variable-name-face))
("Properties" . (all-the-icons-octicon "book" :face font-lock-variable-name-face))
("Reference" . (all-the-icons-octicon "book" :face font-lock-variable-name-face))
("References" . (all-the-icons-octicon "book" :face font-lock-variable-name-face))
("Snippet" . (all-the-icons-material "border_style" :face font-lock-variable-name-face))
("Snippet" . (all-the-icons-material "border_style" :face font-lock-variable-name-face))
("String" . (all-the-icons-material "text_fields" :face font-lock-variable-name-face))
("Strings" . (all-the-icons-material "text_fields" :face font-lock-variable-name-face))
("Struct" . (all-the-icons-faicon "cog" :face font-lock-type-face))
("Structs" . (all-the-icons-faicon "cog" :face font-lock-type-face))
("Text" . (all-the-icons-material "text_fields" :face font-lock-variable-name-face))
("Texts" . (all-the-icons-material "text_fields" :face font-lock-variable-name-face))
("Top level" . (all-the-icons-faicon "globe" :face font-lock-function-name-face))
("Trait" . (all-the-icons-octicon "package" :face font-lock-builtin-face))
("Traits" . (all-the-icons-octicon "package" :face font-lock-builtin-face))
("Type" . (all-the-icons-faicon "cog" :face font-lock-type-face))
("Types" . (all-the-icons-faicon "cog" :face font-lock-type-face))
("Type Parameter" . (all-the-icons-material "code" :face font-lock-type-face))
("Type Parameters" . (all-the-icons-material "code" :face font-lock-type-face))
("Unit" . (all-the-icons-faicon "bar-chart" :face font-lock-builtin-face))
("Units" . (all-the-icons-faicon "bar-chart" :face font-lock-builtin-face))
("Value" . (all-the-icons-faicon "cog" :face font-lock-type-face))
("Values" . (all-the-icons-faicon "cog" :face font-lock-type-face))
("Variable" . (all-the-icons-octicon "book" :face font-lock-variable-name-face))
("Variables" . (all-the-icons-octicon "book":face font-lock-variable-name-face)))
"An alist of types associated with a sexp returning an icon.
The sexp should be an `all-the-icons' function with its args."
:type '(alist :key-type string :value-type sexp)
:group 'helm-imenu)
(defcustom helm-imenu-default-type-sexp
'(all-the-icons-faicon "globe" :face font-lock-function-name-face)
"Default sexp to use when no type for an object is found."
:type 'sexp
:group 'helm-imenu)
;;; keymap
(defvar helm-imenu-map
(let ((map (make-sparse-keymap)))
(set-keymap-parent map helm-map)
(define-key map (kbd "M-<down>") 'helm-imenu-next-section)
(define-key map (kbd "M-<up>") 'helm-imenu-previous-section)
(define-key map (kbd "C-]") 'helm-imenu-toggle-type-view)
map))
(defun helm-imenu-toggle-type-view ()
"Toggle candidate type view."
(interactive)
(with-helm-window
(setq helm-imenu-hide-item-type-name (not helm-imenu-hide-item-type-name))
(let* ((sel (substring (helm-get-selection nil 'withprop)
(if helm-imenu-use-icon 2 0)))
(type (get-text-property 1 'type-name sel)))
(setq sel (substring-no-properties sel))
(helm-force-update (if helm-imenu-hide-item-type-name
(format "^[ ]*%s$"
(car (last (split-string
sel helm-imenu-delimiter t))))
(format "^[ ]*%s / %s$"
type sel))))))
(put 'helm-imenu-toggle-type-view 'no-helm-mx t)
(defcustom helm-imenu-lynx-style-map nil
"Use Arrow keys to jump to occurences."
:group 'helm-imenu
:type 'boolean
:set (lambda (var val)
(set var val)
(if val
(progn
(define-key helm-imenu-map (kbd "<right>") 'helm-execute-persistent-action)
(define-key helm-imenu-map (kbd "<left>") 'helm-maybe-exit-minibuffer))
(define-key helm-imenu-map (kbd "<right>") nil)
(define-key helm-imenu-map (kbd "<left>") nil))))
(defun helm-imenu-next-or-previous-section (n)
(with-helm-window
(let* ((fn (lambda ()
(let ((str (buffer-substring
(point-at-bol) (point-at-eol))))
(if helm-imenu-hide-item-type-name
(get-text-property 1 'type-name str)
(car (split-string str helm-imenu-delimiter))))))
(curtype (funcall fn))
(stop-fn (if (> n 0)
#'helm-end-of-source-p
#'helm-beginning-of-source-p)))
(while (and (not (funcall stop-fn))
(string= curtype (funcall fn)))
(forward-line n))
(helm-mark-current-line)
(helm-follow-execute-persistent-action-maybe))))
(defun helm-imenu-next-section ()
(interactive)
(helm-imenu-next-or-previous-section 1))
(defun helm-imenu-previous-section ()
(interactive)
(helm-imenu-next-or-previous-section -1))
;;; Internals
(defvar helm-cached-imenu-alist nil)
(make-variable-buffer-local 'helm-cached-imenu-alist)
(defvar helm-cached-imenu-candidates nil)
(make-variable-buffer-local 'helm-cached-imenu-candidates)
(defvar helm-cached-imenu-tick nil)
(make-variable-buffer-local 'helm-cached-imenu-tick)
(defvar helm-imenu--in-all-buffers-cache nil)
(defvar helm-source-imenu nil "See (info \"(emacs)Imenu\")")
(defvar helm-source-imenu-all nil)
(defclass helm-imenu-source (helm-source-sync)
((candidates :initform 'helm-imenu-candidates)
(candidate-transformer :initform 'helm-imenu-transformer)
(persistent-action :initform 'helm-imenu-persistent-action)
(persistent-help :initform "Show this entry")
(nomark :initform t)
(keymap :initform 'helm-imenu-map)
(help-message :initform 'helm-imenu-help-message)
(action :initform 'helm-imenu-action)
(find-file-target :initform #'helm-imenu-quit-and-find-file-fn)
(group :initform 'helm-imenu)))
(defcustom helm-imenu-fuzzy-match nil
"Enable fuzzy matching in `helm-source-imenu'."
:group 'helm-imenu
:type 'boolean
:set (lambda (var val)
(set var val)
(setq helm-source-imenu
(helm-make-source "Imenu" 'helm-imenu-source
:fuzzy-match helm-imenu-fuzzy-match))))
(defun helm-imenu--maybe-switch-to-buffer (candidate)
(let ((cand (cdr candidate)))
(helm-aif (and (markerp cand) (marker-buffer cand))
(switch-to-buffer it))))
(defun helm-imenu--execute-action-at-once-p ()
(let ((cur (helm-get-selection))
(mb (with-helm-current-buffer
(save-excursion
(goto-char (point-at-bol))
(point-marker)))))
;; Happen when cursor is on the line where a definition is. This
;; prevent jumping to the definition where we are already, instead
;; display helm with all definitions and preselection to the place
;; we already are.
(if (equal (cdr cur) mb)
(prog1 nil
(helm-set-pattern "")
(helm-force-update))
t)))
(defun helm-imenu-quit-and-find-file-fn (source)
(let ((sel (helm-get-selection nil nil source)))
(when (and (consp sel) (markerp (cdr sel)))
(buffer-file-name (marker-buffer (cdr sel))))))
(defun helm-imenu-action (candidate)
"Default action for `helm-source-imenu'."
(helm-log-run-hook 'helm-goto-line-before-hook)
(helm-imenu--maybe-switch-to-buffer candidate)
(imenu candidate)
;; If semantic is supported in this buffer
;; imenu used `semantic-imenu-goto-function'
;; and position have been highlighted,
;; no need to highlight again.
(unless (eq imenu-default-goto-function
'semantic-imenu-goto-function)
(helm-highlight-current-line)))
(defun helm-imenu-persistent-action (candidate)
"Default persistent action for `helm-source-imenu'."
(helm-imenu--maybe-switch-to-buffer candidate)
(imenu candidate)
(helm-highlight-current-line))
(defun helm-imenu-candidates (&optional buffer)
(with-current-buffer (or buffer helm-current-buffer)
(let ((tick (buffer-modified-tick)))
(if (eq helm-cached-imenu-tick tick)
helm-cached-imenu-candidates
(setq imenu--index-alist nil)
(prog1 (setq helm-cached-imenu-candidates
(let ((index (imenu--make-index-alist t)))
(helm-imenu--candidates-1
(delete (assoc "*Rescan*" index) index))))
(setq helm-cached-imenu-tick tick))))))
(defun helm-imenu-candidates-in-all-buffers (&optional build-sources)
(let* ((lst (buffer-list))
(progress-reporter (make-progress-reporter
"Imenu indexing buffers..." 1 (length lst))))
(prog1
(cl-loop with cur-buf = (if build-sources
(current-buffer) helm-current-buffer)
for b in lst
for count from 1
when (with-current-buffer b
(and (or (member major-mode helm-imenu-extra-modes)
(derived-mode-p 'prog-mode))
(helm-same-major-mode-p
cur-buf helm-imenu-all-buffer-assoc)))
if build-sources
collect (helm-make-source
(format "Imenu in %s" (buffer-name b))
'helm-imenu-source
:candidates (with-current-buffer b
(helm-imenu-candidates b))
:fuzzy-match helm-imenu-fuzzy-match)
else
append (with-current-buffer b
(helm-imenu-candidates b))
do (progress-reporter-update progress-reporter count))
(progress-reporter-done progress-reporter))))
(defun helm-imenu--candidates-1 (alist)
(cl-loop for elm in alist
nconc (cond
((imenu--subalist-p elm)
(helm-imenu--candidates-1
(cl-loop for (e . v) in (cdr elm) collect
(cons (propertize
e 'helm-imenu-type (car elm))
;; If value is an integer, convert it
;; to a marker, otherwise it is a cons cell
;; and it will be converted on next recursions.
;; (Bug#1060) [1].
(if (integerp v) (copy-marker v) v)))))
((listp (cdr elm))
(and elm (list elm)))
(t
;; bug in imenu, should not be needed.
(and (cdr elm)
;; Semantic uses overlays whereas imenu uses
;; markers (Bug#1706).
(setcdr elm (pcase (cdr elm) ; Same as [1].
((and ov (pred overlayp))
(copy-overlay ov))
((and mk (or (pred markerp)
(pred integerp)))
(copy-marker mk))))
(list elm))))))
(defun helm-imenu--get-prop (item)
;; property value of ITEM can have itself
;; a property value which have itself a property value
;; ...and so on; Return a list of all these
;; properties values starting at ITEM.
(let* ((prop (get-text-property 0 'helm-imenu-type item))
(lst (list prop item)))
(when prop
(while prop
(setq prop (get-text-property 0 'helm-imenu-type prop))
(and prop (push prop lst)))
lst)))
(defun helm-imenu-icon-for-type (type)
"Return an icon for type TYPE.
The icon is found in `helm-imenu-icon-type-alist', if not
`helm-imenu-default-type-sexp' is evaled to provide a default icon."
(require 'all-the-icons)
(let ((all-the-icons-scale-factor 1.0)
(all-the-icons-default-adjust 0.0))
(or (helm-aand (assoc-default
type helm-imenu-icon-type-alist)
(apply (car it) (cdr it)))
(apply (car helm-imenu-default-type-sexp)
(cdr helm-imenu-default-type-sexp)))))
(defun helm-imenu-transformer (candidates)
(cl-loop for (k . v) in candidates
;; (k . v) == (symbol-name . marker)
for bufname = (buffer-name
(pcase v
((pred overlayp) (overlay-buffer v))
((or (pred markerp) (pred integerp))
(marker-buffer v))))
for types = (or (helm-imenu--get-prop k)
(list (if (with-current-buffer bufname
(derived-mode-p 'prog-mode))
"Function"
"Top level")
k))
for type-icon = (and helm-imenu-use-icon
(helm-imenu-icon-for-type (car types)))
for type-name = (propertize
(car types) 'face
(cl-loop for (p . f) in helm-imenu-type-faces
when (string-match p (car types))
return f
finally return 'default))
for disp1 = (mapconcat 'identity
(cdr types)
(propertize helm-imenu-delimiter
'face 'shadow))
for disp = (concat (if helm-imenu-use-icon
(concat (propertize " " 'display type-icon) " ")
"")
(if helm-imenu-hide-item-type-name
""
(concat type-name
(propertize helm-imenu-delimiter
'face 'shadow)))
(propertize disp1 'help-echo bufname 'types types))
collect
(cons (propertize disp 'type-name type-name) (cons k v))))
;;;###autoload
(defun helm-imenu ()
"Preconfigured `helm' for `imenu'."
(interactive)
(require 'which-func)
(unless helm-source-imenu
(setq helm-source-imenu
(helm-make-source "Imenu" 'helm-imenu-source
:fuzzy-match helm-imenu-fuzzy-match)))
(let* ((imenu-auto-rescan t)
(helm-highlight-matches-around-point-max-lines 'never)
(str (thing-at-point 'symbol))
(init-reg (and str (concat "\\_<" (regexp-quote str) "\\_>")))
(helm-execute-action-at-once-if-one
helm-imenu-execute-action-at-once-if-one))
(helm :sources 'helm-source-imenu
:default (and str (list init-reg str))
:preselect (helm-aif (which-function)
(concat "\\_<" (regexp-quote it) "\\_>")
init-reg)
:buffer "*helm imenu*")))
;;;###autoload
(defun helm-imenu-in-all-buffers ()
"Fetch Imenu entries in all buffers with similar mode as current.
A mode is similar as current if it is the same, it is derived
i.e. `derived-mode-p' or it have an association in
`helm-imenu-all-buffer-assoc'."
(interactive)
(require 'which-func)
(unless helm-imenu-in-all-buffers-separate-sources
(unless helm-source-imenu-all
(setq helm-source-imenu-all
(helm-make-source "Imenu in all buffers" 'helm-imenu-source
:init (lambda ()
;; Use a cache to avoid repeatedly sending
;; progress-reporter message when updating
;; (Bug#1704).
(setq helm-imenu--in-all-buffers-cache
(helm-imenu-candidates-in-all-buffers)))
:candidates 'helm-imenu--in-all-buffers-cache
:fuzzy-match helm-imenu-fuzzy-match))))
(let* ((imenu-auto-rescan t)
(helm-highlight-matches-around-point-max-lines 'never)
(str (thing-at-point 'symbol))
(init-reg (and str (concat "\\_<" (regexp-quote str) "\\_>")))
(helm-execute-action-at-once-if-one
helm-imenu-execute-action-at-once-if-one)
(helm-maybe-use-default-as-input
(not (null (memq 'helm-source-imenu-all
helm-sources-using-default-as-input))))
(sources (if helm-imenu-in-all-buffers-separate-sources
(helm-imenu-candidates-in-all-buffers 'build-sources)
'(helm-source-imenu-all))))
(helm :sources sources
:default (and str (list init-reg str))
:preselect (helm-aif (which-function)
(concat "\\_<" (regexp-quote it) "\\_>")
init-reg)
:buffer "*helm imenu all*")))
(provide 'helm-imenu)
;;; helm-imenu.el ends here