/
stumpwm-ido.lisp
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/
stumpwm-ido.lisp
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;;;; stumpwm-ido.lisp
(in-package #:stumpwm-ido)
(declaim (optimize (speed 0) (debug 3)))
(defvar *completions-set* nil)
(defvar *ido-match-function* *ido-flex-matcher*)
(defvar *ido-max-inline-completions* 30
"Maximum number of completions displayed in the input window. This
should be set reasonably low as it impacts the speed of the completion
formatting function.")
(pstr:defface :default
:family "terminus"
:pixel-size 12
:foreground "white"
:slant "r")
(pstr:defface :cursor
:background "magenta"
:foreground "black")
(pstr:defface :title1
:pixel-size 24
:foreground "red")
(pstr:defface :title2
:pixel-size 20
:inherit '(:title1))
(pstr:defface :title3
:pixel-size 16)
(pstr:defface :italic
:slant "i")
(pstr:defface :oblique
:slant "o")
(pstr:defface :emph
:inherit '(:italic))
(pstr:defface ido-matches-separator
:documentation "Face for symbols used when displaying completions matches."
:foreground "red")
(pstr:defface ido-matches
:documentation "Face used by ido for displaying normal matches."
:foreground "Gray80")
(pstr:defface ido-exact-match
:documentation "Face used by ido for highlighting an exact match."
:foreground "green")
(pstr:defface ido-first-match
:documentation "Face used by ido for highlighting the first match in the list."
:foreground "cyan"
:weight "bold")
(pstr:defface ido-matches-alt-1
:documentation "Face used by ido for highlighting matches having :match-type
property set to 1."
:foreground "blue")
(pstr:defface ido-matches-alt-2
:documentation "Face used by ido for highlighting matches having :match-type
property set to 2."
:foreground "violet")
(pstr:defface :ido-error
:documentation "Face used by ido for highlighting inline error messages."
:foreground "magenta"
:inherit '(:italic))
(pstr:defface :input-prompt
:foreground "green"
:weight "bold")
;;; FIXME: Completions should not be calculated every time, but only when input changes
;;; TODO: Make it possible to catch changes in the input text
;;; This can probably be done checking what the last command was, and update the
;;; completions only in that case. The current completion list should be stored
;;; somewhere.
;;; Symbols internal in STUMPWM used:
;;; screen-font
;;; screen-input-window
;;; screen-message-gc
;;; screen-width
;;; make-input-string
;;; input-line-string
;;; input-line-position
;;; input-line-password
;;; input-find-completions FIXME
;;; input-insert-string
;;; is-modifier
;;; *input-completions*
;;; read-key-or-selections
;;; code-state->key
;;; *input-last-command*
;;; *input-map*
;;; *input-history*
;;; shutdown-input-window
(defun ido-setup-input-window (screen prompt input)
"Set the window input up to read input."
(let ((height (+ (xlib:font-descent (stumpwm::screen-font screen)) ;FIXME: calculate height for input (pstring)
(xlib:font-descent (stumpwm::screen-font screen))))
(win (stumpwm::screen-input-window screen)))
;; window dimensions
(xlib:with-state (win)
(setf (xlib:window-priority win) :above
(xlib:drawable-height win) height))
;; Draw the prompt
(xlib:map-window win)
(ido-draw-input-bucket screen prompt input)))
(defun propertize-match (match)
(let ((face (case (pstr:pstring-get-property match :match-type 0)
(nil :ido-matches)
(1 :ido-matches-alt-1)
(2 :ido-matches-alt-2))))
(pstr:pstring-propertize match :face face)))
(defun format-matches (completions)
(cond ((null completions)
(pstr:pstring-concat (pstr:pstring-propertize "[" :face :ido-matches-separator)
(pstr:pstring-propertize "No match" :face :ido-error)
(pstr:pstring-propertize "]" :face :ido-matches-separator)))
(t (flet ((csymbol (text)
(pstr:pstring-propertize text :face :ido-matches-separator))
(add-sep (match)
(list (propertize-match match)
(pstr:pstring-propertize " | " :face :ido-matches-separator))))
;; separated completions
(let* ((scmps-1 (butlast (mapcan #'add-sep completions)))
;; first-match
(scmps (cons (pstr:pstring-propertize (first scmps-1) :face :ido-first-match)
(cdr scmps-1))))
(reduce #'pstr:pstring-concat
(nconc (list (csymbol "{ "))
scmps
(list (csymbol " }")))))))))
(defun ido-inline-completions (prompt input completions screen)
(let ((gcontext (stumpwm::screen-message-gc screen))
(maxwidth (- (stumpwm::screen-width screen) (* 2 stumpwm:*message-window-padding*)))
(n (length completions)))
(flet ((make-display-string (comps)
(pstr:pstring-concat prompt (stumpwm::input-line-string input) " " (format-matches comps) " ... ")))
(do ((comps (reverse (subseq completions 0 (min *ido-max-inline-completions* n))) (cdr comps)))
((or (null comps) (< (pstr:xlib-pstring-extents gcontext (make-display-string comps)) maxwidth))
(reverse (append (and (> n (length comps)) (list "...")) comps)))))))
(defparameter *ido-current-completions* nil)
(defparameter *ido-input-map*
(stumpwm::copy-kmap stumpwm::*input-map*))
(defun ido-process-input (input code state)
"Process the key (code and state) given the current input
buffer. Returns a new modified input buffer."
(labels ((process-key (code state)
"Call the appropriate function based on the key
pressed. Return 'done when the user has signalled the finish of his
input (pressing Return), nil otherwise."
(let* ((key (stumpwm::code-state->key code state))
(command (and key (stumpwm::lookup-key *ido-input-map* key t))))
(if command
(prog1
(funcall command input key)
(setf stumpwm::*input-last-command* command))
:error))))
(case (process-key code state)
(:done
(unless (or (stumpwm::input-line-password input)
(and stumpwm:*input-history-ignore-duplicates*
(string= (stumpwm::input-line-string input) (first stumpwm::*input-history*))))
(push (stumpwm::input-line-string input) stumpwm::*input-history*))
:done)
(:abort (throw :abort t))
(:error
;; FIXME draw inverted text
:error)
(t nil))))
(defun process-key-or-selection (key input)
(cond ((stringp key)
(stumpwm::input-insert-string input key))
((stumpwm::is-modifier (car key)))
(t (case (ido-process-input input (car key) (cdr key))
(:error :error)
(:done :done)
(t nil)))))
(defun ido-read-one-line (screen prompt &key (initial-input "") require-match password)
"Read a line of input through stumpwm and return it. Returns nil if
the user aborted."
(let ((stumpwm::*input-last-command* nil)
(input (stumpwm::make-input-line :string (stumpwm::make-input-string initial-input)
:position (length initial-input)
:history -1
:password password)))
(labels ((match-input ()
(let* ((in (string-trim " " (stumpwm::input-line-string input)))
(compls (stumpwm::input-find-completions in stumpwm::*input-completions*)))
(and (consp compls)
(string= in (car compls)))))
(input-changed (old-input-string old-input-position input-line)
(declare (ignorable old-input-position))
(not (string= old-input-string (stumpwm::input-line-string input-line))))
(key-loop ()
(let ((old-input initial-input)
(old-input-pos (length initial-input)))
(loop for key = (stumpwm::read-key-or-selection) do
(let ((status (process-key-or-selection key input)))
;; handle end of input
(when (and (eq status :done)
(or (not require-match) (match-input)))
(return (stumpwm::input-line-string input)))
;; handle input change
(when (input-changed old-input old-input-pos input)
(setf old-input (copy-sequence 'string (stumpwm::input-line-string input)))
(setf old-input-pos (stumpwm::input-line-position input))
(setf *ido-current-completions* (ido-input-completions old-input
old-input-pos
*completions-set*
*ido-match-function*)))
;; draw
(ido-draw-input-bucket screen prompt input
(format-matches (ido-inline-completions prompt
input
*ido-current-completions*
screen))
(eq status :error)))))))
(ido-setup-input-window screen prompt input)
(catch :abort
(unwind-protect
(stumpwm::with-focus (stumpwm::screen-input-window screen)
(key-loop))
(stumpwm::shutdown-input-window screen))))))
(defun color-cursor (text point)
(let ((face (pstr:copy-face
(or (pstr:lookup-face
(pstr:pstring-get-property text :face point))
(pstr:lookup-face :default)))))
(setf face (pstr::merge-faces (pstr:lookup-face :cursor) face))
(pstr:pstring-put-property text point (1+ point) :face face)))
(defun ido-draw-input-bucket (screen prompt input &optional (tail "") errorp)
(declare (ignorable errorp))
(let* ((text-to-print (pstr:pstring-concat prompt
(color-cursor (stumpwm::input-line-string input)
(stumpwm::input-line-position input))
" "
tail))
(gcontext (stumpwm::screen-message-gc screen))
(win (stumpwm::screen-input-window screen)))
(multiple-value-bind (w h a)
(pstr:xlib-pstring-extents gcontext text-to-print)
(let* ((width (+ w (* 2 stumpwm:*message-window-padding*)))
(height (+ h (* 1 stumpwm:*message-window-padding*))))
(setf (xlib:drawable-width win) width
(xlib:drawable-height win) height)
(stumpwm::setup-win-gravity screen win stumpwm:*input-window-gravity*)
(pstr:xlib-draw-pstring text-to-print
win
gcontext
stumpwm:*message-window-padding*
(+ a stumpwm:*message-window-padding*)
t)))
(when errorp
(stumpwm::invert-rect screen win 0 0 (xlib:drawable-width win) (xlib:drawable-height win))
(xlib:display-force-output stumpwm::*display*)
(sleep 0.05)
(stumpwm::invert-rect screen win 0 0 (xlib:drawable-width win) (xlib:drawable-height win)))
))
(stumpwm:defcommand prova () ()
(print (ido-read-one-line (stumpwm:current-screen)
(pstr:pstring-propertize "Cmd: " :face :input-prompt))))
(stumpwm:defcommand prova3 () ()
(let ((*completions-set* *command-completions*))
(ido-read-one-line (stumpwm::current-screen)
(pstr:pstring-propertize "CMD: " :face :input-prompt))))
(stumpwm:defcommand prova2() ()
(let ((*completions-set* *pathname-completions*))
(print (ido-read-one-line (stumpwm:current-screen)
(pstr:pstring-propertize "Cmd: " :face :input-prompt)))))
(stumpwm:defcommand ido-rotate-fwd (input key) ()
(setf *ido-current-completions* (rotate *ido-current-completions* -1)))
(stumpwm:defcommand ido-rotate-bwd (input key) ()
(setf *ido-current-completions* (rotate *ido-current-completions*)))
(stumpwm:define-key *ido-input-map* (stumpwm:kbd "C-s") 'ido-rotate-fwd)
(stumpwm:define-key *ido-input-map* (stumpwm:kbd "C-r") 'ido-rotate-bwd)
(defun ido-complete-input (input key)
(declare (ignore key))
(setf (stumpwm::input-line-string input) (stumpwm::make-input-string (pstr:pstring-string (car *ido-current-completions*)))
(stumpwm::input-line-position input) (pstr:pstring-length (car *ido-current-completions*))))
(stumpwm:define-key *ido-input-map* (stumpwm:kbd "C-Return") 'ido-complete-input)
(defun ido-expand-input (input key)
(declare (ignore key))
(setf (stumpwm::input-line-string input)
(stumpwm::make-input-string
(ido-cset-expand-input (stumpwm::input-line-string input)
(stumpwm::input-line-position input)
*completions-set*
*ido-match-function*)))
(setf (stumpwm::input-line-position input)
(length (stumpwm::input-line-string input))))
(stumpwm:define-key *ido-input-map* (stumpwm:kbd "Tab") 'ido-expand-input)