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;;; dashboard.el --- My daashboard -*- lexical-binding: t; -*-
(defun dashboard-center-string (str)
"Return a centered string."
(let ((current-window-width (1- (window-width nil t)))
(str-width (string-pixel-width str)))
(cond
((display-graphic-p)
(concat
(propertize
(string 32)
'display
(list
'space
:width
(list (floor (- current-window-width str-width) 2))))
str))
(t
(concat
(make-string
(round
(- current-window-width str-width)
(* 2 (string-pixel-width (string 32))))
32)
str)))))
;;;###autoload
(defvar dashboard-buffer-name "durand"
"The name of the buffer for the dashboard.")
;;;###autoload
(defvar dashboard-cat-text
(list
" "
" /\\ "
" / \\ "
" / =\\= "
" / - \\=----- "
" / |.| / "
" \\\\ - - / "
" \\\\ |.| | "
" / \\\\ - / "
" / \\\\ / "
" ||==========| ========\\=| "
" ||==========| -- | "
" | || /==== | "
" == | / \\ \\ "
" | | \\ \\ "
" ==== ==== ")
"A clumsy text representation of a cute cat.")
;;;###autoload
(defun dashboard (&optional force)
"Create the dashboard buffer.
If FORCE is non-nil, re-gerenate the dashboard buffer."
(interactive)
(let ((dashboard-exists-p (get-buffer dashboard-buffer-name))
(dashboard (get-buffer-create dashboard-buffer-name))
(inhibit-read-only t))
(cond
((and (not force) dashboard-exists-p)
(switch-to-buffer dashboard))
(t
(with-current-buffer dashboard
(setq buffer-undo-list t)
(erase-buffer)
(cond
((display-graphic-p)
(let ((image
(create-image
(expand-file-name
"cat.png"
user-emacs-directory))))
(insert
(make-string 3 10)
(dashboard-center-string
(propertize
" "
'display image
'rear-nonsticky '(display))))))
((mapc (function
(lambda (str)
(insert
(dashboard-center-string str)
"\n")))
dashboard-cat-text)))
(newline 5)
(insert
(dashboard-center-string "Dashboard"))
(set-buffer-modified-p nil)
(read-only-mode 1)
(set
'mode-line-format
'("%e" (:eval (modeline-format-dashboard))))
(set 'default-directory user-emacs-directory)
(view-mode 1)
(dashboard-mode))))
dashboard))
(set 'initial-buffer-choice #'dashboard)
;;; Dedicated major mode
(define-derived-mode dashboard-mode nil "Dashboard"
"Major mode for the dashboard buffer.
The main purpose is to provide a dedicated keymap to access
common functionalities more conveniently.")
(let ((m dashboard-mode-map))
(define-key m (vector ?l) #'blist)
(define-key m (vector ?L) #'rlist-list-registers)
(define-key m (vector ?b) #'bookmark-jump)
(define-key m (vector ?B) #'durand-jump-bookmark-new-tab)
(define-key m (vector ?T) #'modeline-toggle)
(define-key m (vector ?t) #'durand-view-timers-or-temps)
(define-key m (vector ?o) #'durand-open-object)
(define-key m (vector ?g) #'gnus)
(define-key m (vector ?h) #'durand-ibuffer)
(define-key m (vector ?f) #'find-file)
(define-key m (vector ?F) #'find-file-other-tab)
(define-key m (vector ?a) #'dashboard-org-agenda)
(define-key m (vector ?c) #'dashboard-clear)
(define-key m (vector ?C) #'dashboard-org-capture)
(define-key m (vector ?p) #'project-switch-project)
(define-key m (vector ?x) #'execute-extended-command))
;; load Org if not loaded already
(defmacro dashboard-preload (symbol file-to-load)
"Define a dispatch function for the symbol."
(list
'defun (intern (format "dashboard-%s" (symbol-name symbol)))
(list (intern "&rest") 'args)
(format
"A dispatch function for `%s'.
This function loads \"%s\" if `%s' is not already loaded, and
calls `%s' otherwise."
(symbol-name symbol)
file-to-load
(symbol-name symbol)
(symbol-name symbol))
(list 'interactive (list #'list 'current-prefix-arg t))
(list
'cond
(list (list 'not (list #'functionp `(quote ,symbol)))
(list #'load-config file-to-load))
(list (list #'funcall `(quote ,symbol) 'args)))))
(dashboard-preload org-agenda "org-conf.el")
(dashboard-preload org-capture "org-conf.el")
(dashboard-preload org-store-link "org-conf.el")
;; ibuffer clear
(defun dashboard-clear ()
"Run `durand-ibuffer-clear' while in the dashboard."
(interactive)
(let ((inhibit-message t))
(ibuffer)
(durand-ibuffer-clear)))
;;; Modify killing buffers
;;;###autoload
(defun dont-kill-dashboard-fn ()
"Don't kill the dashboard buffer."
(cond
((eq (current-buffer) (get-buffer dashboard-buffer-name))
;; The function message returns the message, so applying not will
;; produce nil as needed.
;; "Please don't kill the dashboard buffer"
(not (message "न निहन्याद्घाटीफलकनिधानकम्")))
(t)))
(add-hook 'kill-buffer-query-functions 'dont-kill-dashboard-fn)
(provide 'dashboard)
;;; dashboard.el ends here.
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