Added app launcher

This commit is contained in:
Aleksandr Lebedev 2025-01-29 12:17:15 +01:00
parent a167696b4c
commit 78caf1d337

View file

@ -8,6 +8,9 @@
- [[#evil-mode][Evil Mode]]
- [[#recent-files][Recent Files]]
- [[#general-keybindings][General Keybindings]]
- [[#startup-time][Startup Time]]
- [[#app-launcher][App Launcher]]
- [[#standalone-run][Standalone run]]
- [[#fonts][Fonts]]
- [[#zooming-inout][Zooming In/Out]]
- [[#graphical-user-interface-tweaks][GRAPHICAL USER INTERFACE TWEAKS]]
@ -119,14 +122,18 @@
"t l" '(display-line-numbers-mode :wk "Toggle line numbers")
"t t" '(visual-line-mode :wk "Toggle truncated lines")
"t v" '(vterm-toggle :wk "Toggle vterm"))
(kylekrein/leader-keys
"o" '(:ignore t :wk "Open")
"o a" '(org-agenda :wk "Agenda")
)
(kylekrein/leader-keys
"n" '(:ignore t :wk "Notes")
"n r" '(:ignore t :wk "Roam")
"n r f" '(org-roam-node-find :wk "Find and open")
"n r i" '(org-roam-node-insert :wk "Insert link")
"n r l" '(org-roam-buffer-toggle :wk "Show backlinks")
"n r d" '(:ignore t :wk "Dailies")
"n r d m" '(org-roam-dailies-map :wk "Show dailies map")
"n r m" '(org-roam-dailies-map :wk "Dailies")
"n r s" '(org-roam-db-sync :wk "Sync Notes DB (After changes on another device)")
)
(kylekrein/leader-keys
@ -150,6 +157,203 @@
#+end_src
* Startup Time
#+begin_src emacs-lisp
;; Startup time
(defun efs/display-startup-time ()
(message
"Emacs loaded in %s with %d garbage collections."
(format
"%.2f seconds"
(float-time
(time-subtract after-init-time before-init-time)))
gcs-done))
(add-hook 'emacs-startup-hook #'efs/display-startup-time)
#+end_src
* App Launcher
This code creates a menu to launch linux apps, that have Desktop entry.
Code was taken from [[https://github.com/SebastienWae/app-launcher/blob/main/app-launcher.el][this awesome repo]]
#+begin_src emacs-lisp
(require 'xdg)
(require 'cl-seq)
(defcustom app-launcher-apps-directories
(mapcar (lambda (dir) (expand-file-name "applications" dir))
(cons (xdg-data-home)
(xdg-data-dirs)))
"Directories in which to search for applications (.desktop files)."
:type '(repeat directory))
(defcustom app-launcher--annotation-function #'app-launcher--annotation-function-default
"Define the function that genereate the annotation for each completion choices."
:type 'function)
(defcustom app-launcher--action-function #'app-launcher--action-function-default
"Define the function that is used to run the selected application."
:type 'function)
(defvar app-launcher--cache nil
"Cache of desktop files data.")
(defvar app-launcher--cache-timestamp nil
"Time when we last updated the cached application list.")
(defvar app-launcher--cached-files nil
"List of cached desktop files.")
(defun app-launcher-list-desktop-files ()
"Return an alist of all Linux applications.
Each list entry is a pair of (desktop-name . desktop-file).
This function always returns its elements in a stable order."
(let ((hash (make-hash-table :test #'equal))
result)
(dolist (dir app-launcher-apps-directories)
(when (file-exists-p dir)
(let ((dir (file-name-as-directory dir)))
(dolist (file (directory-files-recursively dir ".*\\.desktop$"))
(let ((id (subst-char-in-string ?/ ?- (file-relative-name file dir))))
(when (and (not (gethash id hash)) (file-readable-p file))
(push (cons id file) result)
(puthash id file hash)))))))
result))
(defun app-launcher-parse-files (files)
"Parse the .desktop files to return usable informations."
(let ((hash (make-hash-table :test #'equal)))
(dolist (entry files hash)
(let ((file (cdr entry)))
(with-temp-buffer
(insert-file-contents file)
(goto-char (point-min))
(let ((start (re-search-forward "^\\[Desktop Entry\\] *$" nil t))
(end (re-search-forward "^\\[" nil t))
(visible t)
name comment exec)
(catch 'break
(unless start
(message "Warning: File %s has no [Desktop Entry] group" file)
(throw 'break nil))
(goto-char start)
(when (re-search-forward "^\\(Hidden\\|NoDisplay\\) *= *\\(1\\|true\\) *$" end t)
(setq visible nil))
(setq name (match-string 1))
(goto-char start)
(unless (re-search-forward "^Type *= *Application *$" end t)
(throw 'break nil))
(setq name (match-string 1))
(goto-char start)
(unless (re-search-forward "^Name *= *\\(.+\\)$" end t)
(push file counsel-linux-apps-faulty)
(message "Warning: File %s has no Name" file)
(throw 'break nil))
(setq name (match-string 1))
(goto-char start)
(when (re-search-forward "^Comment *= *\\(.+\\)$" end t)
(setq comment (match-string 1)))
(goto-char start)
(unless (re-search-forward "^Exec *= *\\(.+\\)$" end t)
;; Don't warn because this can technically be a valid desktop file.
(throw 'break nil))
(setq exec (match-string 1))
(goto-char start)
(when (re-search-forward "^TryExec *= *\\(.+\\)$" end t)
(let ((try-exec (match-string 1)))
(unless (locate-file try-exec exec-path nil #'file-executable-p)
(throw 'break nil))))
(puthash name
(list (cons 'file file)
(cons 'exec exec)
(cons 'comment comment)
(cons 'visible visible))
hash))))))))
(defun app-launcher-list-apps ()
"Return list of all Linux .desktop applications."
(let* ((new-desktop-alist (app-launcher-list-desktop-files))
(new-files (mapcar 'cdr new-desktop-alist)))
(unless (and (equal new-files app-launcher--cached-files)
(null (cl-find-if
(lambda (file)
(time-less-p
app-launcher--cache-timestamp
(nth 5 (file-attributes file))))
new-files)))
(setq app-launcher--cache (app-launcher-parse-files new-desktop-alist))
(setq app-launcher--cache-timestamp (current-time))
(setq app-launcher--cached-files new-files)))
app-launcher--cache)
(defun app-launcher--annotation-function-default (choice)
"Default function to annotate the completion choices."
(let ((str (cdr (assq 'comment (gethash choice app-launcher--cache)))))
(when str (concat " - " (propertize str 'face 'completions-annotations)))))
(defun app-launcher--action-function-default (selected)
"Default function used to run the selected application."
(let* ((exec (cdr (assq 'exec (gethash selected app-launcher--cache))))
(command (let (result)
(dolist (chunk (split-string exec " ") result)
(unless (or (equal chunk "%U")
(equal chunk "%F")
(equal chunk "%u")
(equal chunk "%f"))
(setq result (concat result chunk " ")))))))
(call-process-shell-command command nil 0 nil)))
;;;###autoload
(defun app-launcher-run-app (&optional arg)
"Launch an application installed on your machine.
When ARG is non-nil, ignore NoDisplay property in *.desktop files."
(interactive)
(let* ((candidates (app-launcher-list-apps))
(result (completing-read
"Run app: "
(lambda (str pred flag)
(if (eq flag 'metadata)
'(metadata
(annotation-function . (lambda (choice)
(funcall
app-launcher--annotation-function
choice))))
(complete-with-action flag candidates str pred)))
(lambda (x y)
(if arg
t
(cdr (assq 'visible y))))
t nil 'app-launcher nil nil)))
(funcall app-launcher--action-function result)))
#+end_src
** Standalone run
This code snippet runs app launcher without emacs frame
To use it, create a global keyboard shortcut with the following code
~emacsclient -cF "((visibility . nil))" -e "(emacs-run-launcher)~
#+begin_src emacs-lisp
(defun emacs-run-launcher ()
"Create and select a frame called emacs-run-launcher which consists only of a minibuffer and has specific dimensions. Runs app-launcher-run-app on that frame, which is an emacs command that prompts you to select an app and open it in a dmenu like behaviour. Delete the frame after that command has exited"
(interactive)
(with-selected-frame
(make-frame '((name . "emacs-run-launcher")
(minibuffer . only)
(fullscreen . 0) ; no fullscreen
(undecorated . t) ; remove title bar
;;(auto-raise . t) ; focus on this frame
;;(tool-bar-lines . 0)
;;(menu-bar-lines . 0)
(internal-border-width . 10)
(width . 80)
(height . 11)))
(unwind-protect
(app-launcher-run-app)
(delete-frame))))
#+end_src
* Fonts
Defining the various fonts that Emacs will use.
#+begin_src emacs-lisp