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.emacs.d/modules/navigation/siren-helm.el

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7.4 KiB
EmacsLisp
Executable File

;;; siren-helm.el --- jimeh's Emacs Siren: helm configuration.
;;; Commentary:
;; Basic configuration for helm.
;;; Code:
;; Helm fails with tramp-methods symbol being void if tramp is not required.
(require 'tramp)
(use-package helm-global-bindings
:straight helm
:demand
:general
(:keymaps 'helm-command-map
"M" 'helm-man-woman)
:custom
(helm-command-prefix-key "C-c h"))
(use-package helm-core
:after helm-global-bindings
:defer t)
(use-package helm
:after (helm-global-bindings)
:defer t
:hook
(helm-minibuffer-set-up . siren-helm--hide-minibuffer-maybe)
(helm-after-initialize . siren-helm--toggle-source-header-line)
(helm-minibuffer-set-up . siren-helm--popwin-help-mode-off)
(helm-cleanup . siren-helm--popwin-help-mode-on)
(helm-cleanup . siren-helm--show-neotree-maybe)
(helm-cleanup . siren-helm--show-treemacs-maybe)
:custom
(helm-always-two-windows t)
(helm-autoresize-max-height 48)
(helm-autoresize-min-height 10)
(helm-autoresize-mode nil)
(helm-case-fold-search 'smart)
(helm-display-buffer-height 64)
(helm-display-buffer-reuse-frame nil)
(helm-display-buffer-width 160)
(helm-display-function 'helm-default-display-buffer)
(helm-display-header-line t)
(helm-echo-input-in-header-line t)
(helm-file-name-case-fold-search 'smart)
(helm-follow-mode-persistent t)
(helm-full-frame t)
(helm-show-completion-display-function 'helm-display-buffer-in-own-frame)
(helm-source-names-using-follow '("AG" "Diagnostics" "Helm Xref"))
(helm-split-window-default-side 'above)
(helm-split-window-inside-p nil)
(helm-use-undecorated-frame-option t)
(siren-helm-auto-toggle-neotree t)
(siren-helm-auto-toggle-treemacs t)
:preface
(defgroup siren-helm nil
"Siren specific settings for helm."
:group 'helm)
(defcustom siren-helm-auto-toggle-neotree t
"When t and automatically hide and show neotree when helm is activated."
:type 'boolean
:group 'siren-helm)
(defcustom siren-helm-auto-toggle-treemacs t
"When t and automatically hide and show treemacs when helm is activated."
:type 'boolean
:group 'siren-helm)
(defvar siren-helm--did-hide-neotree nil)
(defvar siren-helm--did-hide-treemacs nil)
;; From: https://www.reddit.com/r/emacs/comments/3asbyn/new_and_very_useful_helm_feature_enter_search/
(defun siren-helm--hide-minibuffer-maybe ()
(when (with-helm-buffer helm-echo-input-in-header-line)
(let ((ov (make-overlay (point-min) (point-max) nil nil t)))
(overlay-put ov 'window (selected-window))
(overlay-put ov 'face (let ((bg-color (face-background 'default nil)))
`(:background ,bg-color :foreground ,bg-color)))
(setq-local cursor-type nil))))
;; From: https://github.com/emacs-helm/helm/issues/918#issuecomment-81555133
(defun siren-helm--toggle-source-header-line ()
(if (= (length (ignore-errors (with-helm-buffer helm-sources))) 1)
(set-face-attribute 'helm-source-header nil :height 0.1)
(set-face-attribute 'helm-source-header nil :height 1.0)))
;; From: https://github.com/emacs-helm/helm/wiki/Popwin
(defun siren-helm--popwin-help-mode-off ()
"Turn `popwin-mode' off for *Help* buffers."
(when (boundp 'popwin:special-display-config)
(customize-set-variable 'popwin:special-display-config
(delq 'help-mode popwin:special-display-config))))
;; From: https://github.com/emacs-helm/helm/wiki/Popwin
(defun siren-helm--popwin-help-mode-on ()
"Turn `popwin-mode' on for *Help* buffers."
(when (boundp 'popwin:special-display-config)
(customize-set-variable 'popwin:special-display-config
(add-to-list 'popwin:special-display-config
'help-mode nil #'eq))))
(defun siren-helm--hide-neotree (&rest plist)
(when (and siren-helm-auto-toggle-neotree
(not (eq helm-display-function 'helm-posframe-display))
(fboundp 'neotree-hide)
(fboundp 'neo-global--window-exists-p)
(neo-global--window-exists-p))
(setq siren-helm--did-hide-neotree t)
(neotree-hide)))
(defun siren-helm--show-neotree-maybe ()
(when (and (fboundp 'neotree-show)
siren-helm--did-hide-neotree)
(setq siren-helm--did-hide-neotree nil)
(run-with-timer 0.01 nil #'neotree-show)))
(defun siren-helm--hide-treemacs (&rest plist)
(when (and siren-helm-auto-toggle-treemacs
(not (eq helm-display-function 'helm-posframe-display))
(fboundp 'treemacs-get-local-window))
(let ((win (treemacs-get-local-window)))
(when win
(setq siren-helm--did-hide-treemacs t)
(delete-window win)))))
(defun siren-helm--show-treemacs-maybe ()
(when siren-helm--did-hide-treemacs
(setq siren-helm--did-hide-treemacs nil)
(run-with-timer 0.01 nil #'siren-helm--show-treemacs)))
(defun siren-helm--show-treemacs ()
(when (fboundp 'treemacs-select-window)
(let ((win (selected-window)))
(treemacs-select-window)
(select-window win))))
:config
(require 'helm-mode)
(advice-add 'helm :before 'siren-helm--hide-neotree)
(advice-add 'helm :before 'siren-helm--hide-treemacs))
(use-package helm-elisp
:straight helm
:after (helm-global-bindings)
:general
(:keymaps 'helm-command-map
"d" 'helm-apropos))
(use-package helm-files
:straight helm
:after (helm-global-bindings)
:general
("C-x f" 'helm-find-files)
:custom
(helm-buffer-max-length 64)
(helm-ff-file-name-history-use-recentf t)
(helm-ff-search-library-in-sexp t))
(use-package helm-for-files
:straight helm
:after (helm-global-bindings)
:general
("C-c f f" 'helm-for-files)
("C-c f r" 'helm-recentf))
(use-package helm-ring
:straight helm
:after (helm-global-bindings)
:init
;; This advice is borrowed from the browse-kill-ring package.
(defadvice yank-pop (around kill-ring-browse-maybe (arg))
"If last action was not a yank, run `helm-show-kill-ring' instead."
(interactive "p")
(if (not (eq last-command 'yank))
(helm-show-kill-ring)
(barf-if-buffer-read-only)
ad-do-it))
(ad-activate 'yank-pop))
(use-package helm-descbinds
:defer t
:after (helm-global-bindings))
(use-package helm-describe-modes
:defer t
:after (helm-global-bindings))
(use-package helm-xref
:defer t
:after (helm-global-bindings))
(use-package helm-posframe
:if window-system
:custom
(helm-posframe-border-width 3)
(helm-posframe-height nil)
(helm-posframe-min-height 70)
(helm-posframe-min-width nil)
(helm-posframe-parameters '((left-fringe . 10) (right-fringe . 10)))
(helm-posframe-width 500)
:preface
;; helm-posframe does not come with a minor mode to toggle it on/off, so let's
;; make one to make life easier.
(define-minor-mode helm-posframe-mode
"Toggle helm-posframe."
:lighter " fmt"
(if helm-posframe-mode (helm-posframe-enable) (helm-posframe-disable)))
(defun siren-helm-posframe-clear-on-fullscreen (frame)
(let ((fullscreen (frame-parameter frame 'fullscreen)))
(when (and helm-posframe-mode
(memq fullscreen '(fullscreen fullboth)))
(posframe-hide-all))))
:config
(add-hook 'window-size-change-functions
'siren-helm-posframe-clear-on-fullscreen)
;; (helm-posframe-mode +1)
)
(provide 'siren-helm)
;;; siren-helm.el ends here