1 ;;; --------------------------------------------------------------------------
2 ;;; CLFSWM - FullScreen Window Manager
4 ;;; --------------------------------------------------------------------------
5 ;;; Documentation: Query utility
6 ;;; --------------------------------------------------------------------------
8 ;;; (C) 2012 Philippe Brochard <pbrochard@common-lisp.net>
10 ;;; This program is free software; you can redistribute it and/or modify
11 ;;; it under the terms of the GNU General Public License as published by
12 ;;; the Free Software Foundation; either version 3 of the License, or
13 ;;; (at your option) any later version.
15 ;;; This program is distributed in the hope that it will be useful,
16 ;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 ;;; GNU General Public License for more details.
20 ;;; You should have received a copy of the GNU General Public License
21 ;;; along with this program; if not, write to the Free Software
22 ;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
24 ;;; --------------------------------------------------------------------------
29 (defparameter *query-window
* nil
)
30 (defparameter *query-font
* nil
)
31 (defparameter *query-gc
* nil
)
33 (defparameter *query-history
* (list ""))
34 (defparameter *query-complet-list
* nil
)
35 (defparameter *query-completion-state
* nil
)
37 (defparameter *query-message
* nil
)
38 (defparameter *query-string
* nil
)
39 (defparameter *query-pos
* nil
)
40 (defparameter *query-return
* nil
)
43 (defun query-show-paren (orig-string pos dec
)
44 "Replace matching parentheses with brackets"
45 (let ((string (copy-seq orig-string
)))
46 (labels ((have-to-find-right?
()
47 (and (< pos
(length string
)) (char= (aref string pos
) #\
()))
48 (have-to-find-left?
()
49 (and (> (1- pos
) 0) (char= (aref string
(1- pos
)) #\
))))
51 (loop :for p
:from
(1+ pos
) :below
(length string
)
52 :with level
= 1 :for c
= (aref string p
)
53 :do
(when (char= c
#\
() (incf level
))
54 (when (char= c
#\
)) (decf level
))
55 (when (= level
0) (return p
))))
57 (loop :for p
:from
(- pos
2) :downto
0
58 :with level
= 1 :for c
= (aref string p
)
59 :do
(when (char= c
#\
() (decf level
))
60 (when (char= c
#\
)) (incf level
))
61 (when (= level
0) (return p
))))
62 (draw-bloc (p &optional
(color *query-parent-color
*))
63 (setf (xlib:gcontext-foreground
*query-gc
*) (get-color color
))
64 (xlib:draw-rectangle
*pixmap-buffer
* *query-gc
*
65 (+ 10 (* p
(xlib:max-char-width
*query-font
*)) dec
)
66 (+ (xlib:max-char-ascent
*query-font
*) (xlib:max-char-descent
*query-font
*) 7)
67 (xlib:max-char-width
*query-font
*)
68 (+ (xlib:max-char-ascent
*query-font
*) (xlib:max-char-descent
*query-font
*))
70 (cond ((have-to-find-left?
) (let ((p (pos-left)))
72 (progn (draw-bloc p
) (draw-bloc (1- pos
)))
73 (draw-bloc (1- pos
) *query-parent-error-color
*))))
74 ((have-to-find-right?
) (let ((p (pos-right)))
76 (progn (draw-bloc p
) (draw-bloc pos
))
77 (draw-bloc pos
*query-parent-error-color
*))))))))
80 (defun clear-query-history ()
81 "Clear the query-string history"
82 (setf *query-history
* (list "")))
86 (defun leave-query-mode (&optional
(return :Escape
))
87 "Leave the query mode"
88 (setf *query-return
* return
)
89 (throw 'exit-query-loop nil
))
92 (defun leave-query-mode-valid ()
93 (leave-query-mode :Return
))
95 (add-hook *binding-hook
* 'init-
*query-keys
*)
99 (defun query-find-complet-list ()
100 (let* ((pos (1+ (or (position-if-not #'extented-alphanumericp
*query-string
*
101 :end
*query-pos
* :from-end t
)
103 (str (subseq *query-string
* pos
*query-pos
*)))
104 (when (or (> (length str
) (1- *query-min-complet-char
*))
105 (< (length *query-complet-list
*) *query-max-complet-length
*))
106 (values (string-match str
*query-complet-list
*) pos
))))
109 (defun query-print-string ()
110 (let ((dec (min 0 (- (- (x-drawable-width *query-window
*) 10)
111 (+ 10 (* *query-pos
* (xlib:max-char-width
*query-font
*))))))
112 (complet (if *query-completion-state
*
113 (first *query-completion-state
*)
114 (query-find-complet-list))))
115 (clear-pixmap-buffer *query-window
* *query-gc
*)
116 (setf (xlib:gcontext-foreground
*query-gc
*) (get-color *query-message-color
*))
117 (xlib:draw-glyphs
*pixmap-buffer
* *query-gc
* 5 (+ (xlib:max-char-ascent
*query-font
*) 5)
118 (format nil
"~A ~{~A~^, ~}" *query-message
*
119 (if (< (length complet
) *query-max-complet-length
*)
121 (when (< *query-pos
* 0)
122 (setf *query-pos
* 0))
123 (when (> *query-pos
* (length *query-string
*))
124 (setf *query-pos
* (length *query-string
*)))
125 (query-show-paren *query-string
* *query-pos
* dec
)
126 (setf (xlib:gcontext-foreground
*query-gc
*) (get-color *query-foreground
*))
127 (xlib:draw-glyphs
*pixmap-buffer
* *query-gc
*
129 (+ (* 2 (+ (xlib:max-char-ascent
*query-font
*) (xlib:max-char-descent
*query-font
*))) 5)
131 (setf (xlib:gcontext-foreground
*query-gc
*) (get-color *query-cursor-color
*))
132 (xlib:draw-line
*pixmap-buffer
* *query-gc
*
133 (+ 10 (* *query-pos
* (xlib:max-char-width
*query-font
*)) dec
)
134 (+ (* 2 (+ (xlib:max-char-ascent
*query-font
*) (xlib:max-char-descent
*query-font
*))) 6)
135 (+ 10 (* *query-pos
* (xlib:max-char-width
*query-font
*)) dec
)
136 (+ (* 1 (+ (xlib:max-char-ascent
*query-font
*) (xlib:max-char-descent
*query-font
*))) 7))
137 (copy-pixmap-buffer *query-window
* *query-gc
*)))
141 (defun query-enter-function ()
142 (setf *query-font
* (xlib:open-font
*display
* *query-font-string
*))
143 (let ((width (- (xlib:screen-width
*screen
*) 2))
144 (height (* 3 (+ (xlib:max-char-ascent
*query-font
*) (xlib:max-char-descent
*query-font
*)))))
145 (with-placement (*query-mode-placement
* x y width height
)
146 (setf *query-window
* (xlib:create-window
:parent
*root
*
150 :background
(get-color *query-background
*)
151 :border-width
*border-size
*
152 :border
(get-color *query-border
*)
153 :colormap
(xlib:screen-default-colormap
*screen
*)
154 :event-mask
'(:exposure
:key-press
))
155 *query-gc
* (xlib:create-gcontext
:drawable
*query-window
*
156 :foreground
(get-color *query-foreground
*)
157 :background
(get-color *query-background
*)
160 (setf (window-transparency *query-window
*) *query-transparency
*)
161 (map-window *query-window
*)
163 (wait-no-key-or-button-press))))
167 (defun query-leave-function ()
168 (xlib:destroy-window
*query-window
*)
169 (xlib:close-font
*query-font
*)
170 (wait-no-key-or-button-press))
172 (defun query-loop-function ()
173 (raise-window *query-window
*))
177 (labels ((generic-backspace (del-pos)
179 (setf *query-string
* (concatenate 'string
180 (subseq *query-string
* 0 del-pos
)
181 (subseq *query-string
* *query-pos
*))
182 *query-pos
* del-pos
))))
183 (defun query-backspace ()
184 "Delete a character backward"
185 (generic-backspace (1- *query-pos
*)))
187 (defun query-backspace-word ()
188 "Delete a word backward"
189 (generic-backspace (or (position #\Space
*query-string
* :from-end t
:end
*query-pos
*) 0)))
191 (defun query-backspace-clear ()
192 "Delete backwards until beginning"
193 (generic-backspace 0)))
195 (labels ((generic-delete (del-pos)
196 (when (<= del-pos
(length *query-string
*))
197 (setf *query-string
* (concatenate 'string
198 (subseq *query-string
* 0 *query-pos
*)
199 (subseq *query-string
* del-pos
))))))
200 (defun query-delete ()
201 "Delete a character forward"
202 (generic-delete (1+ *query-pos
*)))
204 (defun query-delete-word ()
205 "Delete a word forward"
206 (generic-delete (1+ (or (position #\Space
*query-string
* :start
*query-pos
*)
207 (1- (length *query-string
*)))))))
212 "Move cursor to line begining"
213 (setf *query-pos
* 0))
216 "Move cursor to line end"
217 (setf *query-pos
* (length *query-string
*)))
221 "Move cursor to left"
222 (when (> *query-pos
* 0)
223 (setf *query-pos
* (1- *query-pos
*))))
225 (defun query-left-word ()
226 "Move cursor to left word"
227 (when (> *query-pos
* 0)
228 (setf *query-pos
* (let ((p (position #\Space
*query-string
*
229 :end
(min (1- *query-pos
*) (length *query-string
*))
233 (defun query-right ()
234 "Move cursor to right"
235 (when (< *query-pos
* (length *query-string
*))
236 (setf *query-pos
* (1+ *query-pos
*))))
238 (defun query-right-word ()
239 "Move cursor to right word"
240 (when (< *query-pos
* (length *query-string
*))
241 (setf *query-pos
* (let ((p (position #\Space
*query-string
*
242 :start
(min (1+ *query-pos
*) (length *query-string
*)))))
243 (if p p
(length *query-string
*))))))
245 (defun query-previous-history ()
246 "Circulate backward in history"
247 (setf *query-string
* (first *query-history
*)
248 *query-pos
* (length *query-string
*)
249 *query-history
* (rotate-list *query-history
*)))
252 (defun query-next-history ()
253 "Circulate forward in history"
254 (setf *query-string
* (first *query-history
*)
255 *query-pos
* (length *query-string
*)
256 *query-history
* (anti-rotate-list *query-history
*)))
260 (defun query-delete-eof ()
261 "Delete the end of the line"
262 (setf *query-string
* (subseq *query-string
* 0 *query-pos
*)))
265 (defun query-mode-complet ()
266 (multiple-value-bind (complet pos
)
267 (query-find-complet-list)
269 (if (= (length complet
) 1)
270 (setf *query-string
* (concatenate 'string
271 (subseq *query-string
* 0 pos
)
273 (subseq *query-string
* *query-pos
*))
274 *query-pos
* (+ pos
(length (first complet
)) 1))
275 (let ((common (find-common-string (subseq *query-string
* pos
*query-pos
*) complet
)))
277 (setf *query-string
* (concatenate 'string
278 (subseq *query-string
* 0 pos
)
280 (subseq *query-string
* *query-pos
*))
281 *query-pos
* (+ pos
(length common
)))))))))
283 (defun query-mode-complete-suggest ()
284 (flet ((complete (completions completion-pos pos initial-pos
)
286 (let ((completion (if (equal completion-pos
(list-length completions
))
287 (subseq *query-string
* pos initial-pos
)
288 (nth completion-pos completions
))))
289 (setf *query-string
* (concatenate 'string
290 (subseq *query-string
* 0 pos
)
292 (subseq *query-string
* *query-pos
*))
293 *query-pos
* (+ pos
(length completion
))))
294 (setf *query-completion-state
*
295 (list completions completion-pos pos initial-pos
)))))
296 (if *query-completion-state
*
297 (complete (first *query-completion-state
*)
298 (mod (1+ (second *query-completion-state
*))
299 (1+ (list-length (first *query-completion-state
*))))
300 (third *query-completion-state
*)
301 (fourth *query-completion-state
*))
302 (multiple-value-bind (comps pos
) (query-find-complet-list)
303 (complete comps
0 pos
*query-pos
*)))))
305 (add-hook *query-key-press-hook
* 'query-mode-complete-suggest-reset
)
307 (defun query-mode-complete-suggest-reset (code state
)
308 "Reset the query-completion-state if another key was pressed than a key
309 that calls query-mode-complete-suggest."
310 (unless (equal 'query-mode-complete-suggest
311 (first (find-key-from-code *query-keys
* code state
)))
312 (setf *query-completion-state
* nil
)
313 (query-print-string)))
315 (add-hook *binding-hook
* 'set-default-query-keys
)
317 (defun set-default-query-keys ()
318 (define-query-key ("Return") 'leave-query-mode-valid
)
319 (define-query-key ("Escape") 'leave-query-mode
)
320 (define-query-key ("g" :control
) 'leave-query-mode
)
321 (define-query-key ("Tab") 'query-mode-complet
)
322 (define-query-key ("BackSpace") 'query-backspace
)
323 (define-query-key ("BackSpace" :control
) 'query-backspace-word
)
324 (define-query-key ("BackSpace" :control
:shift
) 'query-backspace-clear
)
325 (define-query-key ("u" :control
) 'query-backspace-clear
)
326 (define-query-key ("Delete") 'query-delete
)
327 (define-query-key ("Delete" :control
) 'query-delete-word
)
328 (define-query-key ("Home") 'query-home
)
329 (define-query-key ("a" :control
) 'query-home
)
330 (define-query-key ("End") 'query-end
)
331 (define-query-key ("e" :control
) 'query-end
)
332 (define-query-key ("Left") 'query-left
)
333 (define-query-key ("Left" :control
) 'query-left-word
)
334 (define-query-key ("Right") 'query-right
)
335 (define-query-key ("Right" :control
) 'query-right-word
)
336 (define-query-key ("Up") 'query-previous-history
)
337 (define-query-key ("Down") 'query-next-history
)
338 (define-query-key ("k" :control
) 'query-delete-eof
))
342 (defun add-in-query-string (code state
)
343 (let* ((modifiers (state->modifiers state
))
344 (keysym (keycode->keysym code modifiers
))
345 (char (xlib:keysym-
>character
*display
* keysym state
)))
346 (when (and char
(characterp char
))
347 (setf *query-string
* (concatenate 'string
348 (when (<= *query-pos
* (length *query-string
*))
349 (subseq *query-string
* 0 *query-pos
*))
351 (when (< *query-pos
* (length *query-string
*))
352 (subseq *query-string
* *query-pos
*))))
353 (incf *query-pos
*))))
357 (define-handler query-mode
:key-press
(code state
)
358 (unless (funcall-key-from-code *query-keys
* code state
)
359 (add-in-query-string code state
))
361 (call-hook *query-key-press-hook
* code state
))
363 (define-handler query-mode
:button-press
(code state x y
)
364 (call-hook *query-button-press-hook
* code state x y
))
368 (defun query-string (message &optional
(default "") complet-list
)
369 "Query a string from the keyboard. Display msg as prompt"
370 (setf *query-message
* message
371 *query-string
* default
372 *query-pos
* (length default
)
373 *query-complet-list
* complet-list
374 *query-completion-state
* nil
)
375 (with-grab-keyboard-and-pointer (92 93 66 67 t
)
376 (generic-mode 'query-mode
'exit-query-loop
377 :enter-function
#'query-enter-function
378 :loop-function
#'query-loop-function
379 :leave-function
#'query-leave-function
380 :original-mode
'(main-mode)))
381 (when (equal *query-return
* :Return
)
382 (pushnew default
*query-history
* :test
#'equal
)
383 (push *query-string
* *query-history
*))
384 (values *query-string
*
389 (defun query-number (msg &optional
(default 0))
390 "Query a number from the query input"
391 (multiple-value-bind (string return
)
392 (query-string msg
(format nil
"~A" default
))
393 (values (if (equal return
:Return
)
394 (or (parse-integer (or string
"") :junk-allowed t
) default
)