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82 KiB
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82 KiB
;;; helm-mode.el --- Enable helm completion everywhere. -*- lexical-binding: t -*-
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;; Copyright (C) 2012 ~ 2019 Thierry Volpiatto <thierry.volpiatto@gmail.com>
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Code:
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(require 'cl-lib)
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(require 'helm)
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(require 'helm-lib)
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(require 'helm-files)
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(defvar crm-separator)
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(defvar ido-everywhere)
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(defvar completion-flex-nospace)
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(declare-function ido-mode "ido.el")
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(defgroup helm-mode nil
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"Enable helm completion."
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:group 'helm)
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(defcustom helm-completing-read-handlers-alist
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'((find-tag . helm-completing-read-default-find-tag)
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(xref-find-definitions . helm-completing-read-default-find-tag)
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(xref-find-references . helm-completing-read-default-find-tag)
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(tmm-menubar . nil)
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(find-file . nil)
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(execute-extended-command . nil)
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(dired-do-rename . helm-read-file-name-handler-1)
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(dired-do-copy . helm-read-file-name-handler-1)
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(dired-do-symlink . helm-read-file-name-handler-1)
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(dired-do-relsymlink . helm-read-file-name-handler-1)
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(dired-do-hardlink . helm-read-file-name-handler-1)
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(basic-save-buffer . helm-read-file-name-handler-1)
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(write-file . helm-read-file-name-handler-1)
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(write-region . helm-read-file-name-handler-1))
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"Completing read functions for specific Emacs commands.
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By default `helm-mode' use `helm-completing-read-default-handler' to
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provide helm completion in each `completing-read' or `read-file-name'
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found, but other functions can be specified here for specific
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commands. This also allow disabling helm completion for some commands
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when needed.
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Each entry is a cons cell like (EMACS_COMMAND . COMPLETING-READ_HANDLER)
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where key and value are symbols.
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Each key is an Emacs command that use originaly `completing-read'.
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Each value maybe a helm function that takes same arguments as
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`completing-read' plus NAME and BUFFER, where NAME is the name of the new
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helm source and BUFFER the name of the buffer we will use, but it can
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be also a function not using helm, in this case the function should
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take same args as `completing-read' and not be prefixed by \"helm-\".
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`helm' will use the name of the command calling `completing-read' as
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NAME and BUFFER will be computed as well with NAME but prefixed with
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\"*helm-mode-\".
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This function prefix name must start by \"helm-\" when it uses helm,
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otherwise `helm' assumes the function is not a helm function and
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expects same args as `completing-read', this allow you to define a
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handler not using helm completion.
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Example:
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(defun foo/test ()
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(interactive)
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(message \"%S\" (completing-read \"test: \" '(a b c d e))))
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(defun helm-foo/test-completing-read-handler (prompt collection
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predicate require-match
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initial-input hist def
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inherit-input-method
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name buffer)
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(helm-comp-read prompt collection :marked-candidates t
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:name name
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:buffer buffer))
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(add-to-list 'helm-completing-read-handlers-alist
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'(foo/test . helm-foo/test-completing-read-handler))
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We want here to make the regular `completing-read' in `foo/test'
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returns a list of candidate(s) instead of a single candidate.
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Note that this function will be reused for ALL the `completing-read'
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of this command, so it should handle all cases, e.g
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If first `completing-read' complete against symbols and
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second `completing-read' should handle only buffer,
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your specialized function should handle the both.
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If the value of an entry is nil completion will fall back to
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emacs vanilla behavior.
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Example:
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If you want to disable helm completion for `describe-function', use:
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(describe-function . nil)
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Ido is also supported, you can use `ido-completing-read' and
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`ido-read-file-name' as value of an entry or just 'ido.
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Example:
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Enable ido completion for `find-file':
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(find-file . ido)
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same as
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(find-file . ido-read-file-name)
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Note that you don't need to enable `ido-mode' for this to work, see
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`helm-mode' documentation."
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:group 'helm-mode
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:type '(alist :key-type symbol :value-type symbol))
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(defcustom helm-comp-read-case-fold-search helm-case-fold-search
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"Default Local setting of `helm-case-fold-search' for `helm-comp-read'.
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See `helm-case-fold-search' for more info."
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:group 'helm-mode
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:type 'symbol)
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(defcustom helm-mode-reverse-history t
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"Display history source after current source when non nil.
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Apply only in `helm-mode' handled commands."
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:group 'helm-mode
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:type 'boolean)
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(defcustom helm-completion-in-region-default-sort-fn
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'helm-completion-in-region-sort-fn
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"The default sort function to sort candidates in completion-in-region.
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When nil no sorting is done.
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The function is a `filtered-candidate-transformer' function which takes
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two args CANDIDATES and SOURCE.
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It will be used only when `helm-completion-style' is either emacs or
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helm, otherwise when helm-fuzzy style is used, the fuzzy sort function
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will be used."
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:group 'helm-mode
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:type 'function)
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(defcustom helm-mode-fuzzy-match nil
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"Enable fuzzy matching in `helm-mode' globally.
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This is deprecated, use instead helm-fuzzy as `helm-completion-style' or
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even better 'emacs as `helm-completion-style' and add 'flex to
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`completion-styles' (emacs-27) or 'helm-flex if 'flex is not available
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in `completion-styles-alist' (emacs-26)."
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:group 'helm-mode
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:type 'boolean)
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(make-obsolete-variable 'helm-mode-fuzzy-match 'helm-completion-style "3.6.0")
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(defcustom helm-completion-mark-suffix t
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"Push mark at end of suffix when non nil."
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:group 'helm-mode
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:type 'boolean)
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(defvar helm-mode-minibuffer-setup-hook-black-list '(minibuffer-completion-help)
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"Incompatible `minibuffer-setup-hook' functions go here.
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A list of symbols. Helm-mode is rejecting all lambda's, byte-code fns
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and all functions belonging in this list from `minibuffer-setup-hook'.
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This is mainly needed to prevent \"*Completions*\" buffers to popup.")
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(defface helm-mode-prefix
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'((t (:background "red" :foreground "black")))
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"Face used for prefix completion."
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:group 'helm-mode)
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(defvar helm-comp-read-map
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(let ((map (make-sparse-keymap)))
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(set-keymap-parent map helm-map)
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(define-key map (kbd "<C-return>") 'helm-cr-empty-string)
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(define-key map (kbd "M-RET") 'helm-cr-empty-string)
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map)
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"Keymap for `helm-comp-read'.")
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(defun helm-mode-delete-char-backward-1 ()
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(interactive)
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(condition-case err
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(call-interactively 'delete-backward-char)
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(text-read-only
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(if (with-selected-window (minibuffer-window)
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(not (string= (minibuffer-contents) "")))
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(message "Trying to delete prefix completion, next hit will quit")
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(user-error "%s" (car err))))))
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(put 'helm-mode-delete-char-backward-1 'helm-only t)
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(defun helm-mode-delete-char-backward-2 ()
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(interactive)
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(condition-case _err
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(call-interactively 'delete-backward-char)
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(text-read-only
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(unless (with-selected-window (minibuffer-window)
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(string= (minibuffer-contents) ""))
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(with-helm-current-buffer
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(run-with-timer 0.1 nil (lambda ()
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(call-interactively 'delete-backward-char))))
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(helm-keyboard-quit)))))
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(put 'helm-mode-delete-char-backward-2 'helm-only t)
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(helm-multi-key-defun helm-mode-delete-char-backward-maybe
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"Delete char backward when text is not the prefix helm is completing against.
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First call warn user about deleting prefix completion.
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Second call delete backward char in current-buffer and quit helm completion,
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letting user starting a new completion with a new prefix."
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'(helm-mode-delete-char-backward-1 helm-mode-delete-char-backward-2) 1)
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(defcustom helm-completion-style 'emacs
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"Style of completion to use in `completion-in-region'.
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This affect only `completion-at-point' and friends, and
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the `completing-read' using the default handler
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i.e. `helm-completing-read-default-handler'.
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NB: This have nothing to do with `completion-styles', it is independent to
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helm, but when using emacs as helm-completion-style helm
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will use the `completion-styles' for its completions.
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Up to the user to configure `completion-styles'.
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There is three possible value to use:
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- helm, use multi match regular helm completion.
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- helm-fuzzy, use fuzzy matching, note that as usual when
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entering a space helm switch to multi matching mode.
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- emacs, use regular emacs completion according to
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`completion-styles', note that even in this style, helm allows using
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multi match. Emacs-27 provide a style called `flex' that can be used
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aside `helm' style (see `completion-styles-alist'). When `flex' style
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is not available (Emacs<27) helm provide `helm-flex' style which is similar to
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`flex' and helm fuzzy matching.
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For a better experience, if you don't know what to use, set
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`completion-styles' to '(flex) if you are using emacs-27 or to
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\'(helm-flex) if you are using emacs-26 and keep 'emacs as default
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value for `helm-completion-style'. Advanced users can also have a
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look to `completion-category-overrides' to set styles according to category.
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Please use custom interface or `customize-set-variable' to set this,
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NOT `setq'."
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:group 'helm-mode
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:type '(choice (const :tag "Emacs" emacs)
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(const :tag "Helm" helm)
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(const :tag "Helm-fuzzy" helm-fuzzy))
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:set (lambda (var val)
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(set var val)
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(if (memq val '(helm helm-fuzzy))
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(define-key helm-comp-read-map (kbd "DEL") 'helm-mode-delete-char-backward-maybe)
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(define-key helm-comp-read-map (kbd "DEL") 'delete-backward-char))))
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(defconst helm-completion--all-styles
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(let ((flex (if (assq 'flex completion-styles-alist)
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'flex 'helm-flex)))
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(helm-fast-remove-dups
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(append (list 'helm flex)
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(mapcar 'car completion-styles-alist)))))
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(defconst helm-completion--styles-type
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`(repeat :tag "with other completion styles"
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(choice ,@(mapcar (lambda (x) (list 'const x))
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helm-completion--all-styles))))
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(defcustom helm-completion-styles-alist '((gud-mode . helm))
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"Allow configuring `helm-completion-style' per mode.
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Each entry is a cons cell like (mode . style) where style must be a
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suitable value for `helm-completion-style'.
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When specifying emacs as style for a mode, `completion-styles' can be
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specified by using a cons cell specifying completion-styles to use
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with helm emacs style, e.g. (foo-mode . (emacs helm flex)) will set
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`completion-styles' to '(helm flex) for foo-mode, this affect only
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completions happening in buffers and not minibuffer completions,
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i.e. completing-read's."
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:group 'helm-mode
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:type
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`(alist :key-type (symbol :tag "Major Mode")
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:value-type
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(choice :tag "Use helm style or completion styles"
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(radio :tag "Helm Style"
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(const helm)
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(const helm-fuzzy)
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(const emacs))
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(cons :tag "Completion Styles"
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(const :tag "Using Helm `emacs' style" emacs)
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,helm-completion--styles-type))))
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;;; helm-comp-read
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;;
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;;
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(defun helm-cr-empty-string ()
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"Return empty string."
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(interactive)
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(with-helm-alive-p
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(helm-exit-and-execute-action
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(lambda (_candidate)
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(identity "")))))
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(put 'helm-cr-empty-string 'helm-only t)
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(defun helm-mode--keyboard-quit ()
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;; Use this instead of `keyboard-quit'
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;; to avoid deactivating mark in current-buffer.
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(let ((debug-on-quit nil))
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(signal 'quit nil)))
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(cl-defun helm-comp-read-get-candidates (collection &optional
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test sort-fn alistp
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(input helm-pattern))
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"Convert COLLECTION to list removing elements that don't match TEST.
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See `helm-comp-read' about supported COLLECTION arguments.
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SORT-FN is a predicate to sort COLLECTION.
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ALISTP when non--nil will not use `all-completions' to collect
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candidates because it doesn't handle alists correctly for helm.
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i.e In `all-completions' the car of each pair is used as value.
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In helm we want to use the cdr instead like \(display . real\),
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so we return the alist as it is with no transformation by
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`all-completions'.
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e.g
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\(setq A '((a . 1) (b . 2) (c . 3)))
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==>((a . 1) (b . 2) (c . 3))
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\(helm-comp-read \"test: \" A :alistp nil
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:exec-when-only-one t
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:initial-input \"a\")
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==>\"a\" Which is not what we expect.
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\(helm-comp-read \"test: \" A :alistp t
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:exec-when-only-one t
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:initial-input \"1\")
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==>\"1\"
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See docstring of `all-completions' for more info.
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INPUT is the string you want to complete against, defaulting to
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`helm-pattern' which is the value of what you enter in minibuffer.
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Note that when using a function as COLLECTION this value will be
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available with the input argument of the function only when using a
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sync source from `helm-comp-read', i.e not using
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`:candidates-in-buffer', otherwise the function is called only once
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with an empty string as value for `helm-pattern' because
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`helm-pattern' is not yet computed, which is what we want otherwise
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data would not be fully collected at init time.
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If COLLECTION is an `obarray', a TEST should be needed. See `obarray'."
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;; Ensure COLLECTION is computed from `helm-current-buffer'
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;; because some functions used as COLLECTION work
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;; only in the context of current-buffer (Issue #1030) .
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(with-helm-current-buffer
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(let ((cands
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(cond ((vectorp collection)
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(all-completions input collection test))
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((and (symbolp collection) (boundp collection)
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;; Issue #324 history is let-bounded and given
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;; quoted as hist argument of completing-read.
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;; See example in `rcirc-browse-url'.
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(symbolp (symbol-value collection)))
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nil)
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;; When collection is a symbol, most of the time
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;; it should be a symbol used as a minibuffer-history.
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;; The value of this symbol in this case return a list
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;; of string which maybe are converted later as symbol
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;; in special cases.
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;; we treat here commandp as a special case as it return t
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;; also with a string unless its last arg is provided.
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;; Also, the history collections generally collect their
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;; elements as string, so intern them to call predicate.
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((and (symbolp collection) (boundp collection) test)
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(let ((predicate (lambda (elm)
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(condition-case _err
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(if (eq test 'commandp)
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(funcall test (intern elm))
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(funcall test elm))
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(wrong-type-argument
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(funcall test (intern elm)))))))
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(all-completions input (symbol-value collection) predicate)))
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((and (symbolp collection) (boundp collection))
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(all-completions input (symbol-value collection)))
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;; Normally file completion should not be handled here,
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;; but special cases like `find-file-at-point' do it.
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;; Handle here specially such cases.
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((and (functionp collection) (not (string= input ""))
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minibuffer-completing-file-name)
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(cl-loop for f in (funcall collection input test)
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unless (member f '("./" "../"))
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if (string-match helm--url-regexp input)
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collect f
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else
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collect (concat (file-name-as-directory
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(helm-basedir input))
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f)))
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((functionp collection)
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(funcall collection input test t))
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((and alistp (null test)) collection)
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;; Next test ensure circular objects are removed
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;; with `all-completions' (Issue #1530).
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(t (all-completions input collection test)))))
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(if sort-fn (sort cands sort-fn) cands))))
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(defun helm-cr--pattern-in-candidates-p (candidates)
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(or (assoc helm-pattern candidates)
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(assq (intern helm-pattern) candidates)
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(member helm-pattern candidates)
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(member (downcase helm-pattern) candidates)
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(member (upcase helm-pattern) candidates)))
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(defun helm-cr-default-transformer (candidates source)
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"Default filter candidate function for `helm-comp-read'."
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(let ((must-match (helm-attr 'must-match source))
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unknown-pattern)
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(unless (or (eq must-match t)
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(string= helm-pattern "")
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(helm-cr--pattern-in-candidates-p candidates))
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(setq candidates (append (list
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;; Unquote helm-pattern
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;; when it is added
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;; as candidate: Why? #2015
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;; (replace-regexp-in-string
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;; "\\s\\" "" helm-pattern)
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helm-pattern)
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candidates))
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;; Notify pattern have been added to candidates.
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(setq unknown-pattern t))
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(cl-loop for c in candidates
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for cand = (if (stringp c)
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(replace-regexp-in-string "\\s\\" "" c)
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c)
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for pat = (replace-regexp-in-string "\\s\\" "" helm-pattern)
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if (and (or (equal c pat) (equal c helm-pattern))
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unknown-pattern)
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collect
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(cons (concat (propertize
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" " 'display
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(propertize "[?]" 'face 'helm-ff-prefix))
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c)
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c)
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into lst
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else collect (if (and (stringp cand)
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(string-match "\n" cand))
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(cons (replace-regexp-in-string "\n" "->" c) c)
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c)
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into lst
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finally return (helm-fast-remove-dups lst :test 'equal))))
|
|
|
|
(defun helm-comp-read--move-to-first-real-candidate ()
|
|
(helm-aif (helm-get-selection nil 'withprop)
|
|
(when (string= (get-text-property 0 'display it) "[?]")
|
|
(helm-next-line))))
|
|
|
|
(defun helm-cr-default (default cands)
|
|
(delq nil
|
|
(cond ((and (stringp default)
|
|
(not (string= default ""))
|
|
(string= helm-pattern ""))
|
|
(cons default (delete default cands)))
|
|
((and (consp default) (string= helm-pattern ""))
|
|
(append (cl-loop for d in default
|
|
;; Don't convert
|
|
;; nil to "nil" (i.e the string)
|
|
;; it will be delq'ed on top.
|
|
collect (if (null d) d (helm-stringify d)))
|
|
cands))
|
|
(t cands))))
|
|
|
|
;;;###autoload
|
|
(cl-defun helm-comp-read (prompt collection
|
|
&key
|
|
test
|
|
initial-input
|
|
default
|
|
preselect
|
|
(buffer "*Helm Completions*")
|
|
must-match
|
|
fuzzy
|
|
reverse-history
|
|
(requires-pattern 0)
|
|
history
|
|
input-history
|
|
(case-fold helm-comp-read-case-fold-search)
|
|
(del-input t)
|
|
(persistent-action nil)
|
|
(persistent-help "DoNothing")
|
|
(mode-line helm-comp-read-mode-line)
|
|
help-message
|
|
(keymap helm-comp-read-map)
|
|
(name "Helm Completions")
|
|
header-name
|
|
candidates-in-buffer
|
|
match-part
|
|
match-dynamic
|
|
exec-when-only-one
|
|
quit-when-no-cand
|
|
(volatile t)
|
|
sort
|
|
fc-transformer
|
|
hist-fc-transformer
|
|
marked-candidates
|
|
nomark
|
|
(alistp t)
|
|
(candidate-number-limit helm-candidate-number-limit)
|
|
multiline
|
|
allow-nest
|
|
(group 'helm))
|
|
"Read a string in the minibuffer, with helm completion.
|
|
|
|
It is helm `completing-read' equivalent.
|
|
|
|
- PROMPT is the prompt name to use.
|
|
|
|
- COLLECTION can be a list, vector, obarray or hash-table.
|
|
It can be also a function that receives three arguments:
|
|
the values string, predicate and t. See `all-completions' for more details.
|
|
|
|
Keys description:
|
|
|
|
- TEST: A predicate called with one arg i.e candidate.
|
|
|
|
- INITIAL-INPUT: Same as input arg in `helm'.
|
|
|
|
- PRESELECT: See preselect arg of `helm'.
|
|
|
|
- DEFAULT: This option is used only for compatibility with regular
|
|
Emacs `completing-read' (Same as DEFAULT arg of `completing-read').
|
|
|
|
- BUFFER: Name of helm-buffer.
|
|
|
|
- MUST-MATCH: Candidate selected must be one of COLLECTION.
|
|
|
|
- FUZZY: Enable fuzzy matching.
|
|
|
|
- REVERSE-HISTORY: When non--nil display history source after current
|
|
source completion.
|
|
|
|
- REQUIRES-PATTERN: Same as helm attribute, default is 0.
|
|
|
|
- HISTORY: A list containing specific history, default is nil.
|
|
When it is non--nil, all elements of HISTORY are displayed in
|
|
a special source before COLLECTION.
|
|
|
|
- INPUT-HISTORY: A symbol. the minibuffer input history will be
|
|
stored there, if nil or not provided, `minibuffer-history'
|
|
will be used instead.
|
|
|
|
- CASE-FOLD: Same as `helm-case-fold-search'.
|
|
|
|
- DEL-INPUT: Boolean, when non--nil (default) remove the partial
|
|
minibuffer input from HISTORY is present.
|
|
|
|
- PERSISTENT-ACTION: A function called with one arg i.e candidate.
|
|
|
|
- PERSISTENT-HELP: A string to document PERSISTENT-ACTION.
|
|
|
|
- MODE-LINE: A string or list to display in mode line.
|
|
Default is `helm-comp-read-mode-line'.
|
|
|
|
- KEYMAP: A keymap to use in this `helm-comp-read'.
|
|
(the keymap will be shared with history source)
|
|
|
|
- NAME: The name related to this local source.
|
|
|
|
- HEADER-NAME: A function to alter NAME, see `helm'.
|
|
|
|
- EXEC-WHEN-ONLY-ONE: Bound `helm-execute-action-at-once-if-one'
|
|
to non--nil. (possibles values are t or nil).
|
|
|
|
- VOLATILE: Use volatile attribute.
|
|
|
|
- SORT: A predicate to give to `sort' e.g `string-lessp'
|
|
Use this only on small data as it is ineficient.
|
|
If you want to sort faster add a sort function to
|
|
FC-TRANSFORMER.
|
|
Note that FUZZY when enabled is already providing a sort function.
|
|
|
|
- FC-TRANSFORMER: A `filtered-candidate-transformer' function
|
|
or a list of functions.
|
|
|
|
- HIST-FC-TRANSFORMER: A `filtered-candidate-transformer'
|
|
function for the history source.
|
|
|
|
- MARKED-CANDIDATES: If non--nil return candidate or marked candidates as a list.
|
|
|
|
- NOMARK: When non--nil don't allow marking candidates.
|
|
|
|
- ALISTP: (default is non--nil) See `helm-comp-read-get-candidates'.
|
|
|
|
- CANDIDATES-IN-BUFFER: when non--nil use a source build with
|
|
`helm-source-in-buffer' which is much faster.
|
|
Argument VOLATILE have no effect when CANDIDATES-IN-BUFFER is non--nil.
|
|
|
|
- MATCH-PART: Allow matching only one part of candidate.
|
|
See match-part documentation in `helm-source'.
|
|
|
|
- MATCH-DYNAMIC: See match-dynamic in `helm-source-sync'
|
|
It have no effect when used with CANDIDATES-IN-BUFFER.
|
|
|
|
- ALLOW-NEST: Allow nesting this `helm-comp-read' in a helm session.
|
|
See `helm'.
|
|
|
|
- MULTILINE: See multiline in `helm-source'.
|
|
|
|
- GROUP: See group in `helm-source'.
|
|
|
|
Any prefix args passed during `helm-comp-read' invocation will be recorded
|
|
in `helm-current-prefix-arg', otherwise if prefix args were given before
|
|
`helm-comp-read' invocation, the value of `current-prefix-arg' will be used.
|
|
That's mean you can pass prefix args before or after calling a command
|
|
that use `helm-comp-read' See `helm-M-x' for example."
|
|
|
|
(when (get-buffer helm-action-buffer)
|
|
(kill-buffer helm-action-buffer))
|
|
(let ((action-fn `(("Sole action (Identity)"
|
|
. (lambda (candidate)
|
|
(if ,marked-candidates
|
|
(helm-marked-candidates)
|
|
(identity candidate)))))))
|
|
(let* ((minibuffer-completion-confirm must-match)
|
|
(minibuffer-completion-predicate test)
|
|
(minibuffer-completion-table collection)
|
|
(helm-read-file-name-mode-line-string
|
|
(replace-regexp-in-string "helm-maybe-exit-minibuffer"
|
|
"helm-confirm-and-exit-minibuffer"
|
|
helm-read-file-name-mode-line-string))
|
|
(get-candidates
|
|
(lambda ()
|
|
(let ((cands (helm-comp-read-get-candidates
|
|
;; If `helm-pattern' is passed as INPUT
|
|
;; and :alistp is nil INPUT is passed to
|
|
;; `all-completions' which defeat helm
|
|
;; matching functions (multi match, fuzzy
|
|
;; etc...) issue #2134.
|
|
collection test sort alistp
|
|
(if (and match-dynamic (null candidates-in-buffer))
|
|
helm-pattern ""))))
|
|
(helm-cr-default default cands))))
|
|
(history-get-candidates
|
|
(lambda ()
|
|
(let ((cands (helm-comp-read-get-candidates
|
|
history test nil alistp)))
|
|
(when cands
|
|
(delete "" (helm-cr-default default cands))))))
|
|
(src-hist (helm-build-sync-source (format "%s History" name)
|
|
:candidates history-get-candidates
|
|
:fuzzy-match fuzzy
|
|
:multiline multiline
|
|
:match-part match-part
|
|
:filtered-candidate-transformer
|
|
(append '((lambda (candidates sources)
|
|
(cl-loop for i in candidates
|
|
;; Input is added to history in completing-read's
|
|
;; and may be regexp-quoted, so unquote it
|
|
;; but check if cand is a string (it may be at this stage
|
|
;; a symbol or nil) Issue #1553.
|
|
when (stringp i)
|
|
collect (replace-regexp-in-string "\\s\\" "" i))))
|
|
(and hist-fc-transformer (helm-mklist hist-fc-transformer)))
|
|
:persistent-action persistent-action
|
|
:persistent-help persistent-help
|
|
:keymap keymap
|
|
:must-match must-match
|
|
:group group
|
|
:mode-line mode-line
|
|
:help-message help-message
|
|
:action action-fn))
|
|
(src (helm-build-sync-source name
|
|
:candidates get-candidates
|
|
:match-part match-part
|
|
:multiline multiline
|
|
:header-name header-name
|
|
:filtered-candidate-transformer
|
|
(let ((transformers (helm-mklist fc-transformer)))
|
|
(append transformers
|
|
(unless (member 'helm-cr-default-transformer transformers)
|
|
'(helm-cr-default-transformer))))
|
|
:requires-pattern requires-pattern
|
|
:persistent-action persistent-action
|
|
:persistent-help persistent-help
|
|
:fuzzy-match fuzzy
|
|
:keymap keymap
|
|
:must-match must-match
|
|
:group group
|
|
:mode-line mode-line
|
|
:match-dynamic match-dynamic
|
|
:help-message help-message
|
|
:action action-fn
|
|
:volatile volatile))
|
|
(src-1 (helm-build-in-buffer-source name
|
|
:data get-candidates
|
|
:match-part match-part
|
|
:multiline multiline
|
|
:header-name header-name
|
|
:filtered-candidate-transformer
|
|
(append (helm-mklist fc-transformer)
|
|
'(helm-cr-default-transformer))
|
|
:requires-pattern requires-pattern
|
|
:persistent-action persistent-action
|
|
:fuzzy-match fuzzy
|
|
:keymap keymap
|
|
:must-match must-match
|
|
:group group
|
|
:persistent-help persistent-help
|
|
:mode-line mode-line
|
|
:help-message help-message
|
|
:action action-fn))
|
|
(src-list (list src-hist
|
|
(cons (cons 'must-match must-match)
|
|
(if candidates-in-buffer
|
|
src-1 src))))
|
|
(helm-execute-action-at-once-if-one exec-when-only-one)
|
|
(helm-quit-if-no-candidate quit-when-no-cand)
|
|
result)
|
|
(when nomark
|
|
(setq src-list (cl-loop for src in src-list
|
|
collect (cons '(nomark) src))))
|
|
(when reverse-history (setq src-list (nreverse src-list)))
|
|
(add-hook 'helm-after-update-hook 'helm-comp-read--move-to-first-real-candidate)
|
|
(unwind-protect
|
|
(setq result (helm
|
|
:sources src-list
|
|
:input initial-input
|
|
:default default
|
|
:preselect preselect
|
|
:prompt prompt
|
|
:resume 'noresume
|
|
:keymap keymap ;; Needed with empty collection.
|
|
:allow-nest allow-nest
|
|
:candidate-number-limit candidate-number-limit
|
|
:case-fold-search case-fold
|
|
:history (and (symbolp input-history) input-history)
|
|
:buffer buffer))
|
|
(remove-hook 'helm-after-update-hook 'helm-comp-read--move-to-first-real-candidate))
|
|
;; Avoid adding an incomplete input to history.
|
|
(when (and result history del-input)
|
|
(cond ((and (symbolp history) ; History is a symbol.
|
|
(not (symbolp (symbol-value history)))) ; Fix Issue #324.
|
|
;; Be sure history is not a symbol with a nil value.
|
|
(helm-aif (symbol-value history) (setcar it result)))
|
|
((consp history) ; A list with a non--nil value.
|
|
(setcar history result))
|
|
(t ; Possibly a symbol with a nil value.
|
|
(set history (list result)))))
|
|
(or result (helm-mode--keyboard-quit)))))
|
|
|
|
|
|
;; Generic completing-read
|
|
;;
|
|
;; Support also function as collection.
|
|
;; e.g M-x man is supported.
|
|
;; Support hash-table and vectors as collection.
|
|
;; NOTE:
|
|
;; Some crap emacs functions may not be supported
|
|
;; like ffap-alternate-file (bad use of completing-read)
|
|
;; and maybe others.
|
|
;; Provide a mode `helm-mode' which turn on
|
|
;; helm in all `completing-read' and `read-file-name' in Emacs.
|
|
;;
|
|
(defvar helm-completion-mode-string " Helm")
|
|
|
|
(defvar helm-completion-mode-quit-message
|
|
"Helm completion disabled")
|
|
|
|
(defvar helm-completion-mode-start-message
|
|
"Helm completion enabled")
|
|
|
|
;;; Specialized handlers
|
|
;;
|
|
;;
|
|
(defun helm-completing-read-symbols
|
|
(prompt _collection test _require-match init
|
|
hist default _inherit-input-method name buffer)
|
|
"Specialized function for fast symbols completion in `helm-mode'."
|
|
(require 'helm-elisp)
|
|
(or
|
|
(helm
|
|
:sources (helm-build-in-buffer-source name
|
|
:init (lambda ()
|
|
(helm-apropos-init (lambda (x)
|
|
(and (funcall test x)
|
|
(not (keywordp x))))
|
|
(or (car-safe default) default)))
|
|
:filtered-candidate-transformer 'helm-apropos-default-sort-fn
|
|
:help-message #'helm-comp-read-help-message
|
|
:fuzzy-match helm-mode-fuzzy-match
|
|
:persistent-action
|
|
(lambda (candidate)
|
|
(helm-lisp-completion-persistent-action
|
|
candidate name))
|
|
:persistent-help (helm-lisp-completion-persistent-help))
|
|
:prompt prompt
|
|
:buffer buffer
|
|
:input init
|
|
:history hist
|
|
:resume 'noresume
|
|
:default (or default ""))
|
|
(helm-mode--keyboard-quit)))
|
|
|
|
|
|
;;; Generic completing read
|
|
;;
|
|
;;
|
|
(defun helm-completing-read-default-1
|
|
(prompt collection test require-match
|
|
init hist default _inherit-input-method
|
|
name buffer &optional cands-in-buffer exec-when-only-one)
|
|
"Call `helm-comp-read' with same args as `completing-read'.
|
|
Extra optional arg CANDS-IN-BUFFER mean use `candidates-in-buffer'
|
|
method which is faster.
|
|
It should be used when candidate list don't need to rebuild dynamically."
|
|
(let ((history (or (car-safe hist) hist))
|
|
(initial-input (helm-aif (pcase init
|
|
((pred (stringp)) init)
|
|
;; INIT is a cons cell.
|
|
(`(,l . ,_ll) l))
|
|
it)))
|
|
(helm-comp-read
|
|
prompt collection
|
|
:test test
|
|
:history history
|
|
:reverse-history helm-mode-reverse-history
|
|
:input-history history
|
|
:must-match require-match
|
|
:alistp nil
|
|
:help-message #'helm-comp-read-help-message
|
|
:name name
|
|
:requires-pattern (if (and (stringp default)
|
|
(string= default "")
|
|
(or (eq require-match 'confirm)
|
|
(eq require-match
|
|
'confirm-after-completion)))
|
|
1 0)
|
|
:candidates-in-buffer cands-in-buffer
|
|
:exec-when-only-one exec-when-only-one
|
|
:fuzzy helm-mode-fuzzy-match
|
|
:buffer buffer
|
|
;; If DEF is not provided, fallback to empty string
|
|
;; to avoid `thing-at-point' to be appended on top of list
|
|
:default (or default "")
|
|
;; Fail with special characters (e.g in gnus "nnimap+gmail:")
|
|
;; if regexp-quote is not used.
|
|
;; when init is added to history, it will be unquoted by
|
|
;; helm-comp-read.
|
|
:initial-input initial-input)))
|
|
|
|
(defun helm-completing-read-default-2
|
|
(prompt collection predicate require-match
|
|
init hist default _inherit-input-method
|
|
name buffer &optional exec-when-only-one)
|
|
"Call `helm-comp-read' with same args as `completing-read'.
|
|
|
|
This handler use dynamic matching which allow honouring `completion-styles'."
|
|
(let* ((history (or (car-safe hist) hist))
|
|
(input (pcase init
|
|
((pred (stringp)) init)
|
|
;; INIT is a cons cell.
|
|
(`(,l . ,_ll) l)))
|
|
(completion-flex-nospace t)
|
|
(completion-styles
|
|
(helm--prepare-completion-styles 'nomode))
|
|
(metadata (or (completion-metadata (or input "") collection predicate)
|
|
'(metadata)))
|
|
(afun (or (plist-get completion-extra-properties :annotation-function)
|
|
(completion-metadata-get metadata 'annotation-function)))
|
|
(file-comp-p (eq (completion-metadata-get metadata 'category) 'file))
|
|
(compfn (lambda (str _predicate _action)
|
|
(let* ((comps
|
|
(completion-all-completions
|
|
str ; This is helm-pattern
|
|
collection
|
|
predicate
|
|
(length str)
|
|
metadata))
|
|
(last-data (last comps))
|
|
;; Helm syle sort fn is added to
|
|
;; metadata only in emacs-27, so in
|
|
;; emacs-26 use helm-generic-sort-fn
|
|
;; which handle both helm and
|
|
;; helm-flex styles. When
|
|
;; helm-completion-style is helm or
|
|
;; helm-fuzzy, sorting will be done
|
|
;; later in FCT.
|
|
(sort-fn
|
|
(and (eq helm-completion-style 'emacs)
|
|
(or
|
|
;; Emacs-27
|
|
(completion-metadata-get
|
|
metadata 'display-sort-function)
|
|
;; Emacs-26
|
|
(lambda (candidates)
|
|
(sort candidates #'helm-generic-sort-fn)))))
|
|
all)
|
|
(when (cdr last-data)
|
|
;; Remove the last element of
|
|
;; comps by side-effect.
|
|
(setcdr last-data nil))
|
|
(setq helm-completion--sorting-done (and sort-fn t))
|
|
(setq all (copy-sequence comps))
|
|
;; Fall back to string-lessp sorting when
|
|
;; str is too small as specialized
|
|
;; sorting may be too slow (flex).
|
|
(when (and sort-fn (<= (length str) 1))
|
|
(setq sort-fn (lambda (all) (sort all #'string-lessp))))
|
|
;; Default is passed here only with helm
|
|
;; h-c-styles, otherwise with emacs style it is
|
|
;; passed with the :default arg of helm-comp-read
|
|
;; and computed in its get-candidates function.
|
|
(append (and default
|
|
(memq helm-completion-style '(helm helm-fuzzy))
|
|
(list default))
|
|
(helm-completion-in-region--initial-filter
|
|
(if sort-fn (funcall sort-fn all) all)
|
|
afun file-comp-p)))))
|
|
(data (if (memq helm-completion-style '(helm helm-fuzzy))
|
|
(funcall compfn (or input "") nil nil)
|
|
compfn))
|
|
(helm-completion-in-region-default-sort-fn
|
|
(lambda (candidates _source)
|
|
(if (or helm-completion--sorting-done
|
|
(string= helm-pattern ""))
|
|
candidates
|
|
(sort candidates 'helm-generic-sort-fn)))))
|
|
(unwind-protect
|
|
(helm-comp-read
|
|
;; Completion-at-point and friends have no prompt.
|
|
prompt
|
|
data
|
|
:name name
|
|
:initial-input input
|
|
:buffer buffer
|
|
:history history
|
|
:reverse-history helm-mode-reverse-history
|
|
;; In helm h-c-styles default is passed directly in
|
|
;; candidates.
|
|
:default (and (eq helm-completion-style 'emacs) default)
|
|
:fc-transformer
|
|
;; Ensure sort fn is at the end.
|
|
(append '(helm-cr-default-transformer)
|
|
(and helm-completion-in-region-default-sort-fn
|
|
(list helm-completion-in-region-default-sort-fn)))
|
|
:match-dynamic (eq helm-completion-style 'emacs)
|
|
:fuzzy (eq helm-completion-style 'helm-fuzzy)
|
|
:exec-when-only-one exec-when-only-one
|
|
:must-match require-match)
|
|
(setq helm-completion--sorting-done nil))))
|
|
|
|
(defun helm-completing-read-default-find-tag
|
|
(prompt collection test require-match
|
|
init hist default inherit-input-method
|
|
name buffer)
|
|
"Specialized `helm-mode' handler for `find-tag'."
|
|
;; Some commands like find-tag may use `read-file-name' from inside
|
|
;; the calculation of collection. in this case it clash with
|
|
;; candidates-in-buffer that reuse precedent data (files) which is wrong.
|
|
;; So (re)calculate collection outside of main helm-session.
|
|
(let* ((cands (helm-comp-read-get-candidates
|
|
collection test nil nil)))
|
|
(helm-completing-read-default-1 prompt cands test require-match
|
|
init hist default inherit-input-method
|
|
name buffer t)))
|
|
|
|
(defun helm-completing-read-sync-default-handler
|
|
(prompt collection test require-match
|
|
init hist default inherit-input-method
|
|
name buffer)
|
|
"`helm-mode' handler using sync source as backend."
|
|
(helm-completing-read-default-1 prompt collection test require-match
|
|
init hist default inherit-input-method
|
|
name buffer))
|
|
|
|
(defun helm-completing-read-default-handler
|
|
(prompt collection test require-match
|
|
init hist default inherit-input-method
|
|
name buffer)
|
|
"Default `helm-mode' handler for all `completing-read'."
|
|
(helm-completing-read-default-2 prompt collection test require-match
|
|
init hist default inherit-input-method
|
|
name buffer))
|
|
|
|
(defun helm--generic-read-buffer (prompt &optional default require-match predicate)
|
|
"The `read-buffer-function' for `helm-mode'.
|
|
Affects `switch-to-buffer' and related."
|
|
(let ((collection (helm-buffer-list)))
|
|
(helm--completing-read-default
|
|
prompt collection predicate require-match nil nil default)))
|
|
|
|
(cl-defun helm--completing-read-default
|
|
(prompt collection &optional
|
|
predicate require-match
|
|
initial-input hist def
|
|
inherit-input-method)
|
|
"An helm replacement of `completing-read'.
|
|
This function should be used only as a `completing-read-function'.
|
|
|
|
Don't use it directly, use instead `helm-comp-read' in your programs.
|
|
|
|
See documentation of `completing-read' and `all-completions' for details."
|
|
(let* ((current-command (or (helm-this-command) this-command))
|
|
(str-command (helm-symbol-name current-command))
|
|
(buf-name (format "*helm-mode-%s*" str-command))
|
|
(entry (assq current-command
|
|
helm-completing-read-handlers-alist))
|
|
(def-com (cdr-safe entry))
|
|
(str-defcom (and def-com (helm-symbol-name def-com)))
|
|
(def-args (list prompt collection predicate require-match
|
|
initial-input hist def inherit-input-method))
|
|
;; Append the two extra args needed to set the buffer and source name
|
|
;; in helm specialized functions.
|
|
(any-args (append def-args (list str-command buf-name)))
|
|
helm-completion-mode-start-message ; Be quiet
|
|
helm-completion-mode-quit-message
|
|
;; Be sure this pesty *completion* buffer doesn't popup.
|
|
;; Note: `minibuffer-with-setup-hook' may setup a lambda
|
|
;; calling `minibuffer-completion-help' or other minibuffer
|
|
;; functions we DONT WANT here, in these cases removing the hook
|
|
;; (a symbol) have no effect. Issue #448.
|
|
;; Because `minibuffer-completion-table' and
|
|
;; `minibuffer-completion-predicate' are not bound
|
|
;; anymore here, these functions should have no effect now,
|
|
;; except in some rare cases like in `woman-file-name',
|
|
;; so remove all incompatible functions
|
|
;; from `minibuffer-setup-hook' (Issue #1205, #1240).
|
|
;; otherwise helm have not the time to close its initial session.
|
|
(minibuffer-setup-hook
|
|
(cl-loop for h in minibuffer-setup-hook
|
|
unless (or (consp h) ; a lambda.
|
|
(byte-code-function-p h)
|
|
(memq h helm-mode-minibuffer-setup-hook-black-list))
|
|
collect h))
|
|
;; Disable hack that could be used before `completing-read'.
|
|
;; i.e (push ?\t unread-command-events).
|
|
unread-command-events
|
|
(default-handler
|
|
;; If nothing is found in
|
|
;; helm-completing-read-handlers-alist use default
|
|
;; handler.
|
|
#'helm-completing-read-default-handler))
|
|
(when (eq def-com 'ido) (setq def-com 'ido-completing-read))
|
|
(unless (or (not entry) def-com)
|
|
;; An entry in *read-handlers-alist exists but have
|
|
;; a nil value, so we exit from here, disable `helm-mode'
|
|
;; and run the command again with it original behavior.
|
|
;; `helm-mode' will be restored on exit.
|
|
(cl-return-from helm--completing-read-default
|
|
(unwind-protect
|
|
(progn
|
|
(helm-mode -1)
|
|
(apply completing-read-function def-args))
|
|
(helm-mode 1))))
|
|
;; If we use now `completing-read' we MUST turn off `helm-mode'
|
|
;; to avoid infinite recursion and CRASH. It will be reenabled on exit.
|
|
(when (or (eq def-com 'completing-read)
|
|
;; All specialized functions are prefixed by "helm"
|
|
(and (stringp str-defcom)
|
|
(not (string-match "^helm" str-defcom))))
|
|
(helm-mode -1))
|
|
(unwind-protect
|
|
(cond (;; An helm specialized function exists, run it.
|
|
(and def-com helm-mode)
|
|
(apply def-com any-args))
|
|
(;; Try to handle `ido-completing-read' everywhere.
|
|
(and def-com (eq def-com 'ido-completing-read))
|
|
(setcar (memq collection def-args)
|
|
(all-completions "" collection predicate))
|
|
(apply def-com def-args))
|
|
(;; User set explicitely `completing-read' or something similar
|
|
;; in *read-handlers-alist, use this with exactly the same
|
|
;; args as in `completing-read'.
|
|
;; If we are here `helm-mode' is now disabled.
|
|
def-com
|
|
(apply def-com def-args))
|
|
(;; Use by default a in-buffer handler unless
|
|
;; COLLECTION is a function.
|
|
t
|
|
(funcall default-handler
|
|
prompt collection predicate require-match
|
|
initial-input hist def inherit-input-method
|
|
str-command buf-name)))
|
|
(helm-mode 1)
|
|
;; When exiting minibuffer, `this-command' is set to
|
|
;; `helm-exit-minibuffer', which is unwanted when starting
|
|
;; on another `completing-read', so restore `this-command' to
|
|
;; initial value when exiting.
|
|
(setq this-command current-command))))
|
|
|
|
;;; Generic read-file-name
|
|
;;
|
|
;;
|
|
;;;###autoload
|
|
(cl-defun helm-read-file-name
|
|
(prompt
|
|
&key
|
|
(name "Read File Name")
|
|
(initial-input default-directory)
|
|
(buffer "*Helm file completions*")
|
|
test
|
|
noret
|
|
(case-fold helm-file-name-case-fold-search)
|
|
preselect
|
|
history
|
|
must-match
|
|
(fuzzy t)
|
|
default
|
|
marked-candidates
|
|
(candidate-number-limit helm-ff-candidate-number-limit)
|
|
nomark
|
|
(alistp t)
|
|
(persistent-action-if 'helm-find-files-persistent-action-if)
|
|
(persistent-help "Hit1 Expand Candidate, Hit2 or (C-u) Find file")
|
|
(mode-line helm-read-file-name-mode-line-string))
|
|
"Read a file name with helm completion.
|
|
It is helm `read-file-name' emulation.
|
|
|
|
Argument PROMPT is the default prompt to use.
|
|
|
|
Keys description:
|
|
|
|
- NAME: Source name, default to \"Read File Name\".
|
|
|
|
- INITIAL-INPUT: Where to start read file name, default to `default-directory'.
|
|
|
|
- BUFFER: `helm-buffer' name default to \"*Helm Completions*\".
|
|
|
|
- TEST: A predicate called with one arg 'candidate'.
|
|
|
|
- NORET: Allow disabling helm-ff-RET (have no effect if helm-ff-RET
|
|
isn't bound to RET).
|
|
|
|
- CASE-FOLD: Same as `helm-case-fold-search'.
|
|
|
|
- PRESELECT: helm preselection.
|
|
|
|
- HISTORY: Display HISTORY in a special source.
|
|
|
|
- MUST-MATCH: Can be 'confirm, nil, or t.
|
|
|
|
- FUZZY: Enable fuzzy matching when non-nil (Enabled by default).
|
|
|
|
- MARKED-CANDIDATES: When non--nil return a list of marked candidates.
|
|
|
|
- NOMARK: When non--nil don't allow marking candidates.
|
|
|
|
- ALISTP: Don't use `all-completions' in history (take effect only on history).
|
|
|
|
- PERSISTENT-ACTION-IF: a persistent if action function.
|
|
|
|
- PERSISTENT-HELP: persistent help message.
|
|
|
|
- MODE-LINE: A mode line message, default is `helm-read-file-name-mode-line-string'."
|
|
(require 'tramp)
|
|
(when (get-buffer helm-action-buffer)
|
|
(kill-buffer helm-action-buffer))
|
|
(mapc (lambda (hook)
|
|
(add-hook 'helm-after-update-hook hook))
|
|
'(helm-ff-move-to-first-real-candidate
|
|
helm-ff-update-when-only-one-matched
|
|
helm-ff-auto-expand-to-home-or-root))
|
|
(let* ((action-fn `(("Sole action (Identity)"
|
|
. (lambda (candidate)
|
|
(if ,marked-candidates
|
|
(helm-marked-candidates :with-wildcard t)
|
|
(identity candidate))))))
|
|
;; Be sure we don't erase the underlying minibuffer if some.
|
|
(helm-ff-auto-update-initial-value
|
|
(and helm-ff-auto-update-initial-value
|
|
(not (minibuffer-window-active-p (minibuffer-window)))))
|
|
helm-follow-mode-persistent
|
|
(helm-ff-fuzzy-matching
|
|
(and fuzzy
|
|
(not (memq helm-mm-matching-method '(multi1 multi3p)))))
|
|
(hist (and history (helm-comp-read-get-candidates
|
|
history nil nil alistp)))
|
|
(minibuffer-completion-confirm must-match)
|
|
(helm-ff--RET-disabled noret)
|
|
(minibuffer-completion-predicate test)
|
|
(minibuffer-completing-file-name t)
|
|
(helm--completing-file-name t)
|
|
(helm-read-file-name-mode-line-string
|
|
(replace-regexp-in-string "helm-maybe-exit-minibuffer"
|
|
"helm-confirm-and-exit-minibuffer"
|
|
helm-read-file-name-mode-line-string))
|
|
(src-list
|
|
(list
|
|
;; History source.
|
|
(helm-build-sync-source (format "%s History" name)
|
|
:header-name (lambda (name)
|
|
(concat name (substitute-command-keys
|
|
helm-find-files-doc-header)))
|
|
:mode-line mode-line
|
|
:candidates hist
|
|
:nohighlight t
|
|
:fuzzy-match fuzzy
|
|
:persistent-action-if persistent-action-if
|
|
:persistent-help persistent-help
|
|
:keymap helm-read-file-map
|
|
:must-match must-match
|
|
:nomark nomark
|
|
:action action-fn)
|
|
;; Other source.
|
|
(helm-build-sync-source name
|
|
:header-name (lambda (name)
|
|
(concat name (substitute-command-keys
|
|
helm-find-files-doc-header)))
|
|
:init (lambda ()
|
|
(setq helm-ff-auto-update-flag
|
|
helm-ff-auto-update-initial-value)
|
|
(setq helm-ff--auto-update-state
|
|
helm-ff-auto-update-flag))
|
|
:mode-line mode-line
|
|
:help-message 'helm-read-file-name-help-message
|
|
:nohighlight t
|
|
:candidates
|
|
(lambda ()
|
|
(append (and (not (file-exists-p helm-pattern))
|
|
(not (helm-ff--invalid-tramp-name-p helm-pattern))
|
|
(list helm-pattern))
|
|
(if test
|
|
(cl-loop with hn = (helm-ff--tramp-hostnames)
|
|
for i in (helm-find-files-get-candidates
|
|
must-match)
|
|
when (or (member i hn) ; A tramp host
|
|
(funcall test i)) ; Test ok
|
|
collect i)
|
|
(helm-find-files-get-candidates must-match))))
|
|
:filtered-candidate-transformer 'helm-ff-sort-candidates
|
|
:filter-one-by-one 'helm-ff-filter-candidate-one-by-one
|
|
:persistent-action-if persistent-action-if
|
|
:persistent-help persistent-help
|
|
:volatile t
|
|
:keymap helm-read-file-map
|
|
:must-match must-match
|
|
:cleanup 'helm-find-files-cleanup
|
|
:nomark nomark
|
|
:action action-fn)))
|
|
;; Helm result.
|
|
(result (helm
|
|
:sources (if helm-mode-reverse-history
|
|
(reverse src-list) src-list)
|
|
:input (expand-file-name initial-input)
|
|
:prompt prompt
|
|
:candidate-number-limit candidate-number-limit
|
|
:resume 'noresume
|
|
:case-fold-search case-fold
|
|
:default default
|
|
:buffer buffer
|
|
:full-frame nil
|
|
:preselect preselect)))
|
|
(or
|
|
(cond ((and result (stringp result)
|
|
(string= result "") ""))
|
|
((and result
|
|
(stringp result)
|
|
(file-equal-p result initial-input)
|
|
default)
|
|
(if (listp default) (car default) default))
|
|
((and result (listp result))
|
|
(mapcar #'expand-file-name result))
|
|
((and result (file-directory-p result))
|
|
(file-name-as-directory (expand-file-name result)))
|
|
(result (expand-file-name result)))
|
|
(helm-mode--keyboard-quit))))
|
|
|
|
(defun helm-mode--default-filename (fname dir initial)
|
|
(unless dir (setq dir default-directory))
|
|
(unless (file-name-absolute-p dir)
|
|
(setq dir (expand-file-name dir)))
|
|
(unless (or fname (consp fname))
|
|
(setq fname (expand-file-name
|
|
(or initial buffer-file-name dir)
|
|
dir)))
|
|
(if (and fname (consp fname))
|
|
(setq fname (cl-loop for f in fname
|
|
collect (expand-file-name f dir)))
|
|
(if (file-name-absolute-p fname)
|
|
fname (expand-file-name fname dir))))
|
|
|
|
(cl-defun helm--generic-read-file-name
|
|
(prompt &optional dir default-filename mustmatch initial predicate)
|
|
"Generic helm replacement of `read-file-name'.
|
|
Don't use it directly, use instead `helm-read-file-name' in your programs."
|
|
(let* ((init (or initial dir default-directory))
|
|
(current-command (or (helm-this-command) this-command))
|
|
(str-command (helm-symbol-name current-command))
|
|
(helm--file-completion-sources
|
|
(cons str-command
|
|
(remove str-command helm--file-completion-sources)))
|
|
(buf-name (format "*helm-mode-%s*" str-command))
|
|
(entry (assq current-command
|
|
helm-completing-read-handlers-alist))
|
|
(def-com (cdr-safe entry))
|
|
(str-defcom (and def-com (helm-symbol-name def-com)))
|
|
;; Don't modify the original args list for emacs generic functions.
|
|
(def-args (list prompt dir default-filename mustmatch initial predicate))
|
|
;; Append the two extra args needed to set the buffer and source name
|
|
;; in helm specialized functions.
|
|
(any-args (append def-args (list str-command buf-name)))
|
|
(reading-directory (eq predicate 'file-directory-p))
|
|
helm-completion-mode-start-message ; Be quiet
|
|
helm-completion-mode-quit-message ; Same here
|
|
fname)
|
|
;; Build `default-filename' with `dir'+`initial' when
|
|
;; `default-filename' is not specified.
|
|
;; See `read-file-name' docstring for more infos.
|
|
(setq default-filename (helm-mode--default-filename
|
|
default-filename dir initial))
|
|
;; Some functions that normally call `completing-read' can switch
|
|
;; brutally to `read-file-name' (e.g find-tag), in this case
|
|
;; the helm specialized function will fail because it is build
|
|
;; for `completing-read', so set it to 'incompatible to be sure
|
|
;; we switch to `helm-read-file-name' and don't try to call it
|
|
;; with wrong number of args.
|
|
(when (eq def-com 'ido)
|
|
(setq def-com 'ido-read-file-name))
|
|
(when (and def-com (> (length (help-function-arglist def-com)) 8))
|
|
(setq def-com 'incompatible))
|
|
(unless (or (not entry) def-com)
|
|
(cl-return-from helm--generic-read-file-name
|
|
(unwind-protect
|
|
(progn
|
|
(helm-mode -1)
|
|
(apply read-file-name-function def-args))
|
|
(helm-mode 1))))
|
|
;; If we use now `read-file-name' we MUST turn off `helm-mode'
|
|
;; to avoid infinite recursion and CRASH. It will be reenabled on exit.
|
|
(when (or (eq def-com 'read-file-name)
|
|
(eq def-com 'ido-read-file-name)
|
|
(and (stringp str-defcom)
|
|
(not (string-match "^helm" str-defcom))))
|
|
(helm-mode -1))
|
|
(unwind-protect
|
|
(setq fname
|
|
(cond (;; A specialized function exists, run it
|
|
;; with the two extra args specific to helm.
|
|
;; Note that the helm handler should ensure
|
|
;; :initial-input is not nil i.e. Use init
|
|
;; which fallback to default-directory instead
|
|
;; of INITIAL.
|
|
(and def-com helm-mode
|
|
(not (eq def-com 'ido-read-file-name))
|
|
(not (eq def-com 'incompatible)))
|
|
(apply def-com any-args))
|
|
(;; Def-com value is `ido-read-file-name'
|
|
;; run it with default args.
|
|
(and def-com (eq def-com 'ido-read-file-name))
|
|
(ido-mode 1)
|
|
(apply def-com def-args))
|
|
(;; Def-com value is `read-file-name'
|
|
;; run it with default args.
|
|
(eq def-com 'read-file-name)
|
|
(apply def-com def-args))
|
|
(t ; Fall back to classic `helm-read-file-name'.
|
|
(helm-read-file-name
|
|
prompt
|
|
:name str-command
|
|
:buffer buf-name
|
|
:default default-filename
|
|
;; Helm handlers should always have a non nil INITIAL arg.
|
|
:initial-input (expand-file-name init dir)
|
|
:alistp nil
|
|
:must-match mustmatch
|
|
:test predicate
|
|
:noret reading-directory))))
|
|
(and ido-mode (ido-mode -1))
|
|
(helm-mode 1)
|
|
;; Same comment as in `helm--completing-read-default'.
|
|
(setq this-command current-command))
|
|
(if (and
|
|
;; Using `read-directory-name'.
|
|
reading-directory
|
|
;; `file-name-as-directory' return "./" when FNAME is
|
|
;; empty string.
|
|
(not (string= fname "")))
|
|
(file-name-as-directory fname) fname)))
|
|
|
|
;; Read file name handler with history (issue #1652)
|
|
(defun helm-read-file-name-handler-1 (prompt dir default-filename
|
|
mustmatch initial predicate
|
|
name buffer)
|
|
"A `read-file-name' handler with history.
|
|
Can be added to `helm-completing-read-handlers-alist' for functions
|
|
that need a `read-file-name' function with directory history.
|
|
The `helm-find-files' history `helm-ff-history' is used here."
|
|
(let ((helm-always-two-windows t)
|
|
(helm-split-window-default-side
|
|
(if (eq helm-split-window-default-side 'same)
|
|
'below helm-split-window-default-side))
|
|
helm-split-window-inside-p
|
|
helm-reuse-last-window-split-state
|
|
;; Helm handlers should always have a non nil INITIAL arg.
|
|
(init (or initial dir default-directory)))
|
|
(helm-read-file-name
|
|
prompt
|
|
:name name
|
|
:history helm-ff-history
|
|
:buffer buffer
|
|
:default default-filename
|
|
:initial-input (expand-file-name init dir)
|
|
:alistp nil
|
|
:must-match mustmatch
|
|
:test predicate)))
|
|
|
|
|
|
;;; Completion in region and Helm style
|
|
;;
|
|
(defun helm-mode--advice-lisp--local-variables (old--fn &rest args)
|
|
(ignore-errors
|
|
(apply old--fn args)))
|
|
|
|
(defvar helm-completion--sorting-done nil
|
|
"Flag that notify the FCT if sorting have been done in completion function.")
|
|
(defun helm-completion-in-region-sort-fn (candidates _source)
|
|
"Default sort function for completion-in-region."
|
|
(if helm-completion--sorting-done
|
|
candidates
|
|
(sort candidates 'helm-generic-sort-fn)))
|
|
|
|
(defun helm-mode--completion-in-region-initial-input (str)
|
|
"Highlight prefix in helm and helm-fuzzy `helm-completion-styles'."
|
|
(if (memq helm-completion-style '(helm helm-fuzzy))
|
|
(propertize str 'read-only t 'face 'helm-mode-prefix 'rear-nonsticky t)
|
|
str))
|
|
|
|
(defun helm-completion-in-region--initial-filter (comps afun file-comp-p)
|
|
"Add annotations at end of candidates and filter out dot files."
|
|
(if file-comp-p
|
|
;; Filter out dot files in file completion.
|
|
(cl-loop for f in comps unless
|
|
(string-match "\\`\\.\\{1,2\\}/\\'" f)
|
|
collect f)
|
|
(if afun
|
|
;; Add annotation at end of
|
|
;; candidate if needed, e.g. foo<f>, this happen when
|
|
;; completing against a quoted symbol.
|
|
(mapcar (lambda (s)
|
|
(let ((ann (funcall afun s)))
|
|
(if ann
|
|
(cons
|
|
(concat
|
|
s
|
|
(propertize
|
|
" " 'display
|
|
(propertize
|
|
ann
|
|
'face 'completions-annotations)))
|
|
s)
|
|
s)))
|
|
comps)
|
|
comps)))
|
|
|
|
;; Helm multi matching style
|
|
|
|
(defun helm-completion-try-completion (string table pred point)
|
|
"The try completion function for `completing-styles-alist'.
|
|
Actually do nothing."
|
|
;; AFAIU the try completion function is here to handle single
|
|
;; element completion, in this case it throw this element without
|
|
;; popping up *completions* buffer. If that's the case we don't need
|
|
;; this because helm already handle this with
|
|
;; `helm-execute-action-at-once-if-one', so returning unconditionaly
|
|
;; nil should be fine.
|
|
(ignore string table pred point))
|
|
|
|
(defun helm-completion-all-completions (string table pred point)
|
|
"The all completions function for `completing-styles-alist'."
|
|
;; FIXME: No need to bind all these value.
|
|
(cl-multiple-value-bind (all _pattern prefix _suffix _carbounds)
|
|
(helm-completion--multi-all-completions string table pred point)
|
|
(when all (nconc all (length prefix)))))
|
|
|
|
(defun helm-completion--multi-all-completions-1 (string collection &optional predicate)
|
|
"Allow `all-completions' multi matching on its candidates."
|
|
(all-completions "" collection (lambda (x &optional _y)
|
|
;; Second arg _y is needed when
|
|
;; COLLECTION is a hash-table issue
|
|
;; #2231 (C-x 8 RET).
|
|
;; Elements of collection may be
|
|
;; lists or alists, in this case consider the
|
|
;; car of element issue #2219 (org-refile).
|
|
(let ((elm (if (listp x) (car x) x)))
|
|
(if predicate
|
|
(and (funcall predicate elm)
|
|
(helm-mm-match (helm-stringify elm) string))
|
|
(helm-mm-match (helm-stringify elm) string))))))
|
|
|
|
(defun helm-completion--multi-all-completions (string table pred point)
|
|
"Collect completions from TABLE for helm completion style."
|
|
(let* ((beforepoint (substring string 0 point))
|
|
(afterpoint (substring string point))
|
|
(bounds (completion-boundaries beforepoint table pred afterpoint))
|
|
(prefix (substring beforepoint 0 (car bounds)))
|
|
(suffix (substring afterpoint (cdr bounds)))
|
|
(all (helm-completion--multi-all-completions-1 string table pred)))
|
|
(list all string prefix suffix point)))
|
|
|
|
;; The adjust-metadata functions run only in emacs-27, they are NOT
|
|
;; used otherwise.
|
|
(defun helm-completion--adjust-metadata (metadata)
|
|
(if (memq helm-completion-style '(helm helm-fuzzy))
|
|
metadata
|
|
(let ((compose-helm-sort-fn
|
|
(lambda (candidates)
|
|
(sort candidates #'helm-generic-sort-fn))))
|
|
`(metadata
|
|
(display-sort-function
|
|
. ,compose-helm-sort-fn)
|
|
(cycle-sort-function
|
|
. ,compose-helm-sort-fn)
|
|
,@(cdr metadata)))))
|
|
(put 'helm 'completion--adjust-metadata 'helm-completion--adjust-metadata)
|
|
|
|
;; Helm-flex style.
|
|
|
|
(defun helm-flex-completion-try-completion (string table pred point)
|
|
"The try completion function for `completing-styles-alist'.
|
|
Actually do nothing."
|
|
;; AFAIU the try completion function is here to handle single
|
|
;; element completion, in this case it throw this element without
|
|
;; popping up *completions* buffer. If that's the case we don't need
|
|
;; this because helm already handle this with
|
|
;; `helm-execute-action-at-once-if-one', so returning unconditionaly
|
|
;; nil should be fine.
|
|
(ignore string table pred point))
|
|
|
|
(defun helm-flex-completion-all-completions (string table pred point)
|
|
"The all completions function for `completing-styles-alist'."
|
|
;; FIXME: No need to bind all these value.
|
|
(cl-multiple-value-bind (all pattern prefix _suffix _carbounds)
|
|
(helm-completion--flex-all-completions string table pred point)
|
|
(let ((regexp (completion-pcm--pattern->regex pattern 'group)))
|
|
(when all (nconc (helm-flex-add-score-as-prop all regexp)
|
|
(length prefix))))))
|
|
|
|
(defun helm-flex-add-score-as-prop (candidates regexp)
|
|
(cl-loop for cand in candidates
|
|
collect (helm-flex--style-score cand regexp)))
|
|
|
|
(defun helm-completion--flex-all-completions-1 (_string collection &optional predicate)
|
|
"Allow `all-completions' multi matching on its candidates."
|
|
(all-completions "" collection (lambda (x &optional _y)
|
|
;; Elements of collection may be
|
|
;; lists, in this case consider the
|
|
;; car of element #2219.
|
|
(let ((elm (if (listp x) (car x) x)))
|
|
(if predicate
|
|
(and (funcall predicate elm)
|
|
(helm-flex-style-match (helm-stringify elm)))
|
|
(helm-flex-style-match (helm-stringify elm)))))))
|
|
|
|
(defun helm-completion--flex-transform-pattern (pattern)
|
|
;; "fob" => '(prefix "f" any "o" any "b" any point)
|
|
(cl-loop for p in pattern
|
|
if (stringp p) nconc
|
|
(cl-loop for str across p
|
|
nconc (list (string str) 'any))
|
|
else nconc (list p)))
|
|
|
|
(defun helm-completion--flex-all-completions (string table pred point)
|
|
"Collect completions from TABLE for helm completion style."
|
|
(let* ((beforepoint (substring string 0 point))
|
|
(afterpoint (substring string point))
|
|
(bounds (completion-boundaries beforepoint table pred afterpoint))
|
|
(prefix (substring beforepoint 0 (car bounds)))
|
|
(suffix (substring afterpoint (cdr bounds)))
|
|
(basic-pattern (completion-basic--pattern
|
|
beforepoint afterpoint bounds))
|
|
(pattern (if (not (stringp (car basic-pattern)))
|
|
basic-pattern
|
|
(cons 'prefix basic-pattern)))
|
|
(pattern (helm-completion--flex-transform-pattern pattern))
|
|
(all (helm-completion--flex-all-completions-1 string table pred)))
|
|
(list all pattern prefix suffix point)))
|
|
|
|
;; Completion-in-region-function
|
|
|
|
(defun helm--completion-in-region (start end collection &optional predicate)
|
|
"Helm replacement of `completion--in-region'."
|
|
(cl-declare (special require-match prompt))
|
|
(advice-add
|
|
'lisp--local-variables
|
|
:around #'helm-mode--advice-lisp--local-variables)
|
|
(let ((old--helm-completion-style helm-completion-style))
|
|
(helm-aif (cdr (assq major-mode helm-completion-styles-alist))
|
|
(customize-set-variable 'helm-completion-style
|
|
(if (cdr-safe it) (car it) it)))
|
|
(unwind-protect
|
|
(let* ((enable-recursive-minibuffers t)
|
|
(completion-flex-nospace t)
|
|
(completion-styles (helm--prepare-completion-styles))
|
|
(input (buffer-substring-no-properties start end))
|
|
;; Always start with prefix to allow completing without
|
|
;; the need of inserting a space after cursor or
|
|
;; relaying on crap old completion-styles emacs22 which
|
|
;; add suffix after prefix. e.g. def|else.
|
|
(initial-input (buffer-substring-no-properties start (point)))
|
|
(prefix (and (eq helm-completion-style 'emacs) initial-input))
|
|
(point (point))
|
|
(current-command (or (helm-this-command) this-command))
|
|
(crm (eq current-command 'crm-complete))
|
|
(str-command (helm-symbol-name current-command))
|
|
(buf-name (format "*helm-mode-%s*" str-command))
|
|
(require-match (or (and (boundp 'require-match) require-match)
|
|
minibuffer-completion-confirm
|
|
;; If prompt have not been propagated here, that's
|
|
;; probably mean we have no prompt and we are in
|
|
;; completion-at-point or friend, so use a non--nil
|
|
;; value for require-match.
|
|
(not (boundp 'prompt))))
|
|
(metadata (completion-metadata input collection predicate))
|
|
;; `completion-extra-properties' is let-bounded in `completion-at-point'.
|
|
;; `afun' is a closure to call against each string in `data'.
|
|
;; it provide the annotation info for each string.
|
|
;; e.g "foo" => "foo <f>" where foo is a function.
|
|
;; See Issue #407.
|
|
(afun (or (plist-get completion-extra-properties :annotation-function)
|
|
(completion-metadata-get metadata 'annotation-function)))
|
|
(init-space-suffix (unless (or (memq helm-completion-style '(helm-fuzzy emacs))
|
|
(string-suffix-p " " input)
|
|
(string= input ""))
|
|
" "))
|
|
(file-comp-p (or (eq (completion-metadata-get metadata 'category) 'file)
|
|
(helm-mode--in-file-completion-p)
|
|
;; Assume that when `afun' and `predicate' are null
|
|
;; we are in filename completion.
|
|
(and (null afun) (null predicate))))
|
|
;; `completion-all-completions' store the base-size in the last `cdr',
|
|
;; so data looks like this: '(a b c d . 0) and (last data) == (d . 0).
|
|
base-size
|
|
(compfn (lambda (str _predicate _action)
|
|
(let* ((comps
|
|
(completion-all-completions
|
|
str ; This is helm-pattern
|
|
collection
|
|
predicate
|
|
;; Use prefix length at first call to
|
|
;; allow styles matching
|
|
;; "prefix*suffix" to kick in.
|
|
(length (or prefix str))
|
|
metadata))
|
|
(last-data (last comps))
|
|
(bs (helm-aif (cdr last-data)
|
|
(prog1 it
|
|
;; Remove the last element of
|
|
;; comps by side-effect.
|
|
(setcdr last-data nil))
|
|
0))
|
|
;; Helm syle sort fn is added to
|
|
;; metadata only in emacs-27, so in
|
|
;; emacs-26 use helm-generic-sort-fn
|
|
;; which handle both helm and
|
|
;; helm-flex styles. When
|
|
;; helm-completion-style is helm or
|
|
;; helm-fuzzy, sorting will be done
|
|
;; later in FCT.
|
|
(sort-fn
|
|
(and (eq helm-completion-style 'emacs)
|
|
(or
|
|
;; Emacs-27
|
|
(completion-metadata-get
|
|
metadata 'display-sort-function)
|
|
;; Emacs-26
|
|
(lambda (candidates)
|
|
(sort candidates #'helm-generic-sort-fn)))))
|
|
all)
|
|
;; Reset prefix to allow using length of
|
|
;; helm-pattern on next calls (this avoid
|
|
;; args-out-of-range error).
|
|
(and prefix (setq prefix nil))
|
|
;; base-size needs to be set only once at
|
|
;; first call.
|
|
(unless base-size (setq base-size bs))
|
|
(setq helm-completion--sorting-done (and sort-fn t))
|
|
(setq all (copy-sequence comps))
|
|
;; Fall back to string-lessp sorting when
|
|
;; str is too small as specialized
|
|
;; sorting may be too slow (flex).
|
|
(when (and sort-fn (<= (length str) 1))
|
|
(setq sort-fn (lambda (all) (sort all #'string-lessp))))
|
|
(helm-completion-in-region--initial-filter
|
|
(if sort-fn (funcall sort-fn all) all)
|
|
afun file-comp-p))))
|
|
(data (if (memq helm-completion-style '(helm helm-fuzzy))
|
|
(funcall compfn input nil nil)
|
|
compfn))
|
|
(result (if (stringp data)
|
|
data
|
|
(helm-comp-read
|
|
;; Completion-at-point and friends have no prompt.
|
|
(or (and (boundp 'prompt) prompt) "Pattern: ")
|
|
data
|
|
:name str-command
|
|
:nomark (null crm)
|
|
:marked-candidates crm
|
|
:initial-input
|
|
(cond ((and file-comp-p
|
|
(not (string-match "/\\'" initial-input)))
|
|
(concat (helm-mode--completion-in-region-initial-input
|
|
(if (memq helm-completion-style '(helm helm-fuzzy))
|
|
(helm-basename initial-input)
|
|
initial-input))
|
|
init-space-suffix))
|
|
((string-match "/\\'" initial-input)
|
|
(and (eq helm-completion-style 'emacs) initial-input))
|
|
((or (null require-match)
|
|
(stringp require-match))
|
|
(helm-mode--completion-in-region-initial-input initial-input))
|
|
(t (concat (helm-mode--completion-in-region-initial-input initial-input)
|
|
init-space-suffix)))
|
|
:buffer buf-name
|
|
:fc-transformer
|
|
;; Ensure sort fn is at the end.
|
|
(append '(helm-cr-default-transformer)
|
|
(and helm-completion-in-region-default-sort-fn
|
|
(list helm-completion-in-region-default-sort-fn)))
|
|
:match-dynamic (eq helm-completion-style 'emacs)
|
|
:fuzzy (eq helm-completion-style 'helm-fuzzy)
|
|
:exec-when-only-one t
|
|
:quit-when-no-cand
|
|
(lambda ()
|
|
;; Delay message to overwrite "Quit".
|
|
(run-with-timer
|
|
0.01 nil
|
|
(lambda ()
|
|
(message "[No matches]")))
|
|
t) ; exit minibuffer immediately.
|
|
:must-match require-match))))
|
|
(helm-completion-in-region--insert-result result start point end base-size))
|
|
(customize-set-variable 'helm-completion-style old--helm-completion-style)
|
|
(setq helm-completion--sorting-done nil)
|
|
(advice-remove 'lisp--local-variables
|
|
#'helm-mode--advice-lisp--local-variables))))
|
|
|
|
(defun helm-completion-in-region--insert-result (result start point end base-size)
|
|
(cond ((stringp result)
|
|
(choose-completion-string
|
|
result (current-buffer)
|
|
(list (+ start base-size) point)
|
|
completion-list-insert-choice-function)
|
|
(when helm-completion-mark-suffix
|
|
(run-with-idle-timer 0.01 nil
|
|
(lambda ()
|
|
(helm-aand
|
|
(+ (- (point) point) end)
|
|
(and (> it (point)) it)
|
|
(push-mark it t t))))))
|
|
((consp result) ; crm.
|
|
(let ((beg (+ start base-size))
|
|
(sep ","))
|
|
;; Try to find a default separator.
|
|
(save-excursion
|
|
(goto-char beg)
|
|
(when (looking-back crm-separator (1- (point)))
|
|
(setq sep (match-string 0))))
|
|
(funcall completion-list-insert-choice-function
|
|
beg end (mapconcat 'identity result sep))))
|
|
(t nil)))
|
|
|
|
(defun helm-mode--in-file-completion-p ()
|
|
(with-helm-current-buffer
|
|
(run-hook-with-args-until-success 'file-name-at-point-functions)))
|
|
|
|
(defun helm-mode--disable-ido-maybe (&optional from-hook)
|
|
(when (and (boundp 'ido-everywhere) ido-everywhere)
|
|
(remove-function read-file-name-function #'ido-read-file-name)
|
|
(remove-function read-buffer-function #'ido-read-buffer)
|
|
(setq ido-everywhere nil)
|
|
(if from-hook
|
|
(user-error "Unable to turn on Ido-everywhere while Helm-mode is enabled")
|
|
(user-error "Helm-mode enabled (Ido-everywhere is incompatible with Helm-mode, disabling it)"))))
|
|
|
|
(defun helm-mode--ido-everywhere-hook ()
|
|
;; Called only when user calls directly ido-everywhere
|
|
;; and helm-mode is enabled.
|
|
(when helm-mode
|
|
(helm-mode--disable-ido-maybe t)))
|
|
|
|
;;;###autoload
|
|
(define-minor-mode helm-mode
|
|
"Toggle generic helm completion.
|
|
|
|
All functions in Emacs that use `completing-read',
|
|
`read-file-name', `completion-in-region' and friends will use helm
|
|
interface when this mode is turned on.
|
|
|
|
However you can modify this behavior for functions of your choice
|
|
with `helm-completing-read-handlers-alist'.
|
|
|
|
Called with a positive arg, turn on unconditionally, with a
|
|
negative arg turn off.
|
|
You can toggle it with M-x `helm-mode'.
|
|
|
|
About `ido-mode':
|
|
DO NOT enable `ido-everywhere' when using `helm-mode' and instead of
|
|
using `ido-mode', add the commands where you want to use ido to
|
|
`helm-completing-read-handlers-alist' with `ido' as value.
|
|
|
|
Note: This mode is incompatible with Emacs23."
|
|
:group 'helm-mode
|
|
:global t
|
|
:lighter helm-completion-mode-string
|
|
(cl-assert (boundp 'completing-read-function) nil
|
|
"`helm-mode' not available, upgrade to Emacs-24")
|
|
(if helm-mode
|
|
(progn
|
|
(add-function :override completing-read-function
|
|
#'helm--completing-read-default)
|
|
(add-function :override read-file-name-function
|
|
#'helm--generic-read-file-name)
|
|
(add-function :override read-buffer-function
|
|
#'helm--generic-read-buffer)
|
|
(add-function :override completion-in-region-function
|
|
#'helm--completion-in-region)
|
|
;; If user have enabled ido-everywhere BEFORE enabling
|
|
;; helm-mode disable it and warn user about its
|
|
;; incompatibility with helm-mode (issue #2085).
|
|
(helm-mode--disable-ido-maybe)
|
|
;; If ido-everywhere is not enabled yet anticipate and
|
|
;; disable it if user attempt to enable it while helm-mode
|
|
;; is running (issue #2085).
|
|
(add-hook 'ido-everywhere-hook #'helm-mode--ido-everywhere-hook)
|
|
(when (fboundp 'ffap-read-file-or-url-internal)
|
|
;; `ffap-read-file-or-url-internal' have been removed in
|
|
;; emacs-27 and `ffap-read-file-or-url' is fixed, so no need
|
|
;; to advice it.
|
|
(advice-add 'ffap-read-file-or-url :override #'helm-advice--ffap-read-file-or-url)))
|
|
(progn
|
|
(remove-function completing-read-function #'helm--completing-read-default)
|
|
(remove-function read-file-name-function #'helm--generic-read-file-name)
|
|
(remove-function read-buffer-function #'helm--generic-read-buffer)
|
|
(remove-function completion-in-region-function #'helm--completion-in-region)
|
|
(remove-hook 'ido-everywhere-hook #'helm-mode--ido-everywhere-hook)
|
|
(when (fboundp 'ffap-read-file-or-url-internal)
|
|
(advice-remove 'ffap-read-file-or-url #'helm-advice--ffap-read-file-or-url)))))
|
|
|
|
(provide 'helm-mode)
|
|
|
|
;; Local Variables:
|
|
;; byte-compile-warnings: (not obsolete)
|
|
;; coding: utf-8
|
|
;; indent-tabs-mode: nil
|
|
;; End:
|
|
|
|
;;; helm-mode.el ends here
|