src/xlib-util.lisp

   1 ;;; --------------------------------------------------------------------------
   2 ;;; CLFSWM - FullScreen Window Manager
   3 ;;;
   4 ;;; --------------------------------------------------------------------------
   5 ;;; Documentation: Utility functions
   6 ;;; --------------------------------------------------------------------------
   7 ;;;
   8 ;;; (C) 2011 Philippe Brochard <hocwp@free.fr>
   9 ;;;
  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.
  14 ;;;
  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.
  19 ;;;
  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.
  23 ;;;
  24 ;;; --------------------------------------------------------------------------
  25
  26 (in-package :clfswm)
  27
  28 ;; Window states
  29 (defconstant +withdrawn-state+ 0)
  30 (defconstant +normal-state+ 1)
  31 (defconstant +iconic-state+ 3)
  32
  33
  34 (defparameter *window-events* '(:structure-notify
  35                                 :property-change
  36                                 :colormap-change
  37                                 :focus-change
  38                                 :enter-window
  39                                 :exposure)
  40   "The events to listen for on managed windows.")
  41
  42
  43 (defparameter +netwm-supported+
  44   '(:_NET_SUPPORTING_WM_CHECK
  45     :_NET_NUMBER_OF_DESKTOPS
  46     :_NET_DESKTOP_GEOMETRY
  47     :_NET_DESKTOP_VIEWPORT
  48     :_NET_CURRENT_DESKTOP
  49     :_NET_WM_WINDOW_TYPE
  50     :_NET_CLIENT_LIST)
  51   "Supported NETWM properties.
  52 Window types are in +WINDOW-TYPES+.")
  53
  54 (defparameter +netwm-window-types+
  55   '((:_NET_WM_WINDOW_TYPE_DESKTOP . :desktop)
  56     (:_NET_WM_WINDOW_TYPE_DOCK . :dock)
  57     (:_NET_WM_WINDOW_TYPE_TOOLBAR . :toolbar)
  58     (:_NET_WM_WINDOW_TYPE_MENU . :menu)
  59     (:_NET_WM_WINDOW_TYPE_UTILITY . :utility)
  60     (:_NET_WM_WINDOW_TYPE_SPLASH . :splash)
  61     (:_NET_WM_WINDOW_TYPE_DIALOG . :dialog)
  62     (:_NET_WM_WINDOW_TYPE_NORMAL . :normal))
  63   "Alist mapping NETWM window types to keywords.")
  64
  65
  66 (defmacro with-xlib-protect (() &body body)
  67   "Prevent Xlib errors"
  68   `(handler-case
  69        (with-simple-restart (top-level "Return to clfswm's top level")
  70          ,@body)
  71      ((or xlib:match-error xlib:window-error xlib:drawable-error xlib:lookup-error) (c)
  72        (progn
  73          (format t "Ignoring XLib error: ~S~%" c)
  74          (unassoc-keyword-handle-event)
  75          (assoc-keyword-handle-event 'main-mode)
  76          (setf *in-second-mode* nil)))))
  77
  78
  79 (defmacro with-x-pointer (&body body)
  80   "Bind (x y) to mouse pointer positions"
  81   `(multiple-value-bind (x y)
  82        (xlib:query-pointer *root*)
  83      ,@body))
  84
  85
  86
  87 (declaim (inline window-x2 window-y2))
  88 (defun window-x2 (window)
  89   (+ (x-drawable-x window) (x-drawable-width window)))
  90
  91 (defun window-y2 (window)
  92   (+ (x-drawable-y window) (x-drawable-height window)))
  93
  94
  95
  96 ;;;
  97 ;;; Events management functions.
  98 ;;;
  99 (defparameter *unhandled-events* nil)
 100 (defparameter *current-event-mode* nil)
 101
 102 (eval-when (:compile-toplevel :load-toplevel :execute)
 103   (defun keyword->handle-event (mode keyword)
 104     (create-symbol 'handle-event-fun "-" mode "-" keyword)))
 105
 106 (defun handle-event->keyword (symbol)
 107   (let* ((name (string-downcase (symbol-name symbol)))
 108          (pos (search "handle-event-fun-" name)))
 109     (when (and pos (zerop pos))
 110       (let ((pos-mod (search "mode" name)))
 111         (when pos-mod
 112           (values (intern (string-upcase (subseq name (+ pos-mod 5))) :keyword)
 113                   (subseq name (length "handle-event-fun-") (1- pos-mod))))))))
 114
 115 (defparameter *handle-event-fun-symbols* nil)
 116
 117 (defun fill-handle-event-fun-symbols ()
 118   (with-all-internal-symbols (symbol :clfswm)
 119     (let ((pos (symbol-search "handle-event-fun-" symbol)))
 120       (when (and pos (zerop pos))
 121         (pushnew symbol *handle-event-fun-symbols*)))))
 122
 123
 124 (defmacro with-handle-event-symbol ((mode) &body body)
 125   "Bind symbol to all handle event functions available in mode"
 126   `(let ((pattern (format nil "handle-event-fun-~A" ,mode)))
 127      (dolist (symbol *handle-event-fun-symbols*)
 128        (let ((pos (symbol-search pattern symbol)))
 129          (when (and pos (zerop pos))
 130            ,@body)))))
 131
 132
 133 (defun find-handle-event-function (&optional (mode ""))
 134   "Print all handle event functions available in mode"
 135   (with-handle-event-symbol (mode)
 136     (print symbol)))
 137
 138 (defun assoc-keyword-handle-event (mode)
 139   "Associate all keywords in mode to their corresponding handle event functions.
 140 For example: main-mode :key-press is bound to handle-event-fun-main-mode-key-press"
 141   (setf *current-event-mode* mode)
 142   (with-handle-event-symbol (mode)
 143     (let ((keyword (handle-event->keyword symbol)))
 144       (when (fboundp symbol)
 145         #+:event-debug
 146         (progn
 147           (format t "~&Associating: ~S with ~S~%" symbol keyword)
 148           (force-output))
 149         (setf (symbol-function keyword) (symbol-function symbol))))))
 150
 151 (defun unassoc-keyword-handle-event (&optional (mode ""))
 152   "Unbound all keywords from their corresponding handle event functions."
 153   (setf *current-event-mode* nil)
 154   (with-handle-event-symbol (mode)
 155     (let ((keyword (handle-event->keyword symbol)))
 156       (when (fboundp keyword)
 157         #+:event-debug
 158         (progn
 159           (format t "~&Unassociating: ~S  ~S~%" symbol keyword)
 160           (force-output))
 161         (fmakunbound keyword)))))
 162
 163 (defmacro define-handler (mode keyword args &body body)
 164   "Like a defun but with a name expanded as handle-event-fun-'mode'-'keyword'
 165 For example (define-handler main-mode :key-press (args) ...)
 166 Expand in handle-event-fun-main-mode-key-press"
 167   `(defun ,(keyword->handle-event mode keyword) (&rest event-slots &key #+:event-debug event-key ,@args &allow-other-keys)
 168      (declare (ignorable event-slots))
 169      #+:event-debug (print (list *current-event-mode* event-key))
 170      ,@body))
 171
 172
 173
 174 ;;; Workaround for pixmap error taken from STUMPWM - thanks:
 175 ;; XXX: In both the clisp and sbcl clx libraries, sometimes what
 176 ;; should be a window will be a pixmap instead. In this case, we
 177 ;; need to manually translate it to a window to avoid breakage
 178 ;; in stumpwm. So far the only slot that seems to be affected is
 179 ;; the :window slot for configure-request and reparent-notify
 180 ;; events. It appears as though the hash table of XIDs and clx
 181 ;; structures gets out of sync with X or perhaps X assigns a
 182 ;; duplicate ID for a pixmap and a window.
 183 (defun make-xlib-window (xobject)
 184   "For some reason the clx xid cache screws up returns pixmaps when
 185 they should be windows. So use this function to make a window out of them."
 186   #+clisp (make-instance 'xlib:window :id (slot-value xobject 'xlib::id) :display *display*)
 187   #+(or sbcl ecl openmcl) (xlib::make-window :id (slot-value xobject 'xlib::id) :display *display*)
 188   #-(or sbcl clisp ecl openmcl)
 189   (error 'not-implemented))
 190
 191
 192 (defun handle-event (&rest event-slots &key event-key &allow-other-keys)
 193   (with-xlib-protect ()
 194     (let ((win (getf event-slots :window)))
 195       (when (and win (not (xlib:window-p win)))
 196         (dbg "Pixmap Workaround! Should be a window: " win)
 197         (setf (getf event-slots :window) (make-xlib-window win))))
 198     (if (fboundp event-key)
 199         (apply event-key event-slots)
 200         #+:event-debug (pushnew (list *current-event-mode* event-key) *unhandled-events* :test #'equal))
 201     (xlib:display-finish-output *display*))
 202   t)
 203
 204
 205
 206
 207
 208 (defun parse-display-string (display)
 209   "Parse an X11 DISPLAY string and return the host and display from it."
 210   (let* ((colon (position #\: display))
 211          (host (subseq display 0 colon))
 212          (rest (subseq display (1+ colon)))
 213          (dot (position #\. rest))
 214          (num (parse-integer (subseq rest 0 dot))))
 215     (values host num)))
 216
 217
 218 ;;; Transparency support
 219 (let ((opaque #xFFFFFFFF))
 220   (defun window-transparency (window)
 221     "Return the window transparency"
 222     (float (/ (or (first (xlib:get-property window :_NET_WM_WINDOW_OPACITY)) opaque)  opaque)))
 223
 224   (defun set-window-transparency (window value)
 225     "Set the window transparency"
 226     (when (numberp value)
 227       (xlib:change-property window :_NET_WM_WINDOW_OPACITY
 228                             (list (max (min (round (* opaque (if (equal *transparent-background* t) value 1)))
 229                                             opaque)
 230                                        0))
 231                             :cardinal 32)))
 232
 233   (defsetf window-transparency set-window-transparency))
 234
 235
 236
 237 (defun window-state (win)
 238   "Get the state (iconic, normal, withdrawn) of a window."
 239   (first (xlib:get-property win :WM_STATE)))
 240
 241
 242 (defun set-window-state (win state)
 243   "Set the state (iconic, normal, withdrawn) of a window."
 244   (xlib:change-property win
 245                         :WM_STATE
 246                         (list state)
 247                         :WM_STATE
 248                         32))
 249
 250 (defsetf window-state set-window-state)
 251
 252
 253
 254 (defun window-hidden-p (window)
 255   (eql (window-state window) +iconic-state+))
 256
 257
 258 (defun null-size-window-p (window)
 259   (let ((hints (xlib:wm-normal-hints window)))
 260     (and hints
 261          (not (or (xlib:wm-size-hints-width hints)
 262                   (xlib:wm-size-hints-height hints)
 263                   (xlib:wm-size-hints-win-gravity hints)))
 264          (xlib:wm-size-hints-user-specified-position-p hints))))
 265
 266
 267
 268
 269
 270
 271 (defun unhide-window (window)
 272   (when window
 273     (when (window-hidden-p window)
 274       (xlib:map-window window)
 275       (setf (window-state window) +normal-state+
 276             (xlib:window-event-mask window) *window-events*))))
 277
 278
 279 (defun map-window (window)
 280   (when window
 281     (xlib:map-window window)))
 282
 283
 284 (defun delete-window (window)
 285   (send-client-message window :WM_PROTOCOLS
 286                        (xlib:intern-atom *display* "WM_DELETE_WINDOW")))
 287
 288 (defun destroy-window (window)
 289   (xlib:kill-client *display* (xlib:window-id window)))
 290
 291
 292 ;;(defconstant +exwm-atoms+
 293 ;;  (list "_NET_SUPPORTED"              "_NET_CLIENT_LIST"
 294 ;;      "_NET_CLIENT_LIST_STACKING"   "_NET_NUMBER_OF_DESKTOPS"
 295 ;;      "_NET_CURRENT_DESKTOP"        "_NET_DESKTOP_GEOMETRY"
 296 ;;      "_NET_DESKTOP_VIEWPORT"       "_NET_DESKTOP_NAMES"
 297 ;;      "_NET_ACTIVE_WINDOW"          "_NET_WORKAREA"
 298 ;;      "_NET_SUPPORTING_WM_CHECK"    "_NET_VIRTUAL_ROOTS"
 299 ;;      "_NET_DESKTOP_LAYOUT"
 300 ;;
 301 ;;        "_NET_RESTACK_WINDOW"         "_NET_REQUEST_FRAME_EXTENTS"
 302 ;;        "_NET_MOVERESIZE_WINDOW"      "_NET_CLOSE_WINDOW"
 303 ;;        "_NET_WM_MOVERESIZE"
 304 ;;
 305 ;;      "_NET_WM_SYNC_REQUEST"        "_NET_WM_PING"
 306 ;;
 307 ;;      "_NET_WM_NAME"                "_NET_WM_VISIBLE_NAME"
 308 ;;      "_NET_WM_ICON_NAME"           "_NET_WM_VISIBLE_ICON_NAME"
 309 ;;      "_NET_WM_DESKTOP"             "_NET_WM_WINDOW_TYPE"
 310 ;;      "_NET_WM_STATE"               "_NET_WM_STRUT"
 311 ;;      "_NET_WM_ICON_GEOMETRY"       "_NET_WM_ICON"
 312 ;;      "_NET_WM_PID"                 "_NET_WM_HANDLED_ICONS"
 313 ;;      "_NET_WM_USER_TIME"           "_NET_FRAME_EXTENTS"
 314 ;;        ;; "_NET_WM_MOVE_ACTIONS"
 315 ;;
 316 ;;      "_NET_WM_WINDOW_TYPE_DESKTOP" "_NET_WM_STATE_MODAL"
 317 ;;      "_NET_WM_WINDOW_TYPE_DOCK"    "_NET_WM_STATE_STICKY"
 318 ;;      "_NET_WM_WINDOW_TYPE_TOOLBAR" "_NET_WM_STATE_MAXIMIZED_VERT"
 319 ;;      "_NET_WM_WINDOW_TYPE_MENU"    "_NET_WM_STATE_MAXIMIZED_HORZ"
 320 ;;      "_NET_WM_WINDOW_TYPE_UTILITY" "_NET_WM_STATE_SHADED"
 321 ;;      "_NET_WM_WINDOW_TYPE_SPLASH"  "_NET_WM_STATE_SKIP_TASKBAR"
 322 ;;      "_NET_WM_WINDOW_TYPE_DIALOG"  "_NET_WM_STATE_SKIP_PAGER"
 323 ;;      "_NET_WM_WINDOW_TYPE_NORMAL"  "_NET_WM_STATE_HIDDEN"
 324 ;;                                    "_NET_WM_STATE_FULLSCREEN"
 325 ;;                                    "_NET_WM_STATE_ABOVE"
 326 ;;                                    "_NET_WM_STATE_BELOW"
 327 ;;                                    "_NET_WM_STATE_DEMANDS_ATTENTION"
 328 ;;
 329 ;;      "_NET_WM_ALLOWED_ACTIONS"
 330 ;;      "_NET_WM_ACTION_MOVE"
 331 ;;      "_NET_WM_ACTION_RESIZE"
 332 ;;      "_NET_WM_ACTION_SHADE"
 333 ;;      "_NET_WM_ACTION_STICK"
 334 ;;      "_NET_WM_ACTION_MAXIMIZE_HORZ"
 335 ;;      "_NET_WM_ACTION_MAXIMIZE_VERT"
 336 ;;      "_NET_WM_ACTION_FULLSCREEN"
 337 ;;      "_NET_WM_ACTION_CHANGE_DESKTOP"
 338 ;;      "_NET_WM_ACTION_CLOSE"
 339 ;;
 340 ;;      ))
 341 ;;
 342 ;;
 343 ;;(defun intern-atoms (display)
 344 ;;  (declare (type xlib:display display))
 345 ;;  (mapcar #'(lambda (atom-name) (xlib:intern-atom display atom-name))
 346 ;;        +exwm-atoms+)
 347 ;;  (values))
 348 ;;
 349 ;;
 350 ;;
 351 ;;(defun get-atoms-property (window property-atom atom-list-p)
 352 ;;  "Returns a list of atom-name (if atom-list-p is t) otherwise returns
 353 ;;   a list of atom-id."
 354 ;;  (xlib:get-property window property-atom
 355 ;;                   :transform (when atom-list-p
 356 ;;                                (lambda (id)
 357 ;;                                  (xlib:atom-name (xlib:drawable-display window) id)))))
 358 ;;
 359 ;;(defun set-atoms-property (window atoms property-atom &key (mode :replace))
 360 ;;  "Sets the property designates by `property-atom'. ATOMS is a list of atom-id
 361 ;;   or a list of keyword atom-names."
 362 ;;  (xlib:change-property window property-atom atoms :ATOM 32
 363 ;;                      :mode mode
 364 ;;                      :transform (unless (integerp (car atoms))
 365 ;;                                   (lambda (atom-key)
 366 ;;                                     (xlib:find-atom (xlib:drawable-display window) atom-key)))))
 367 ;;
 368 ;;
 369 ;;
 370 ;;
 371 ;;(defun net-wm-state (window)
 372 ;;  (get-atoms-property window :_NET_WM_STATE t))
 373 ;;
 374 ;;(defsetf net-wm-state (window &key (mode :replace)) (states)
 375 ;;  `(set-atoms-property ,window ,states :_NET_WM_STATE :mode ,mode))
 376
 377
 378 (defun hide-window (window)
 379   (when window
 380     (setf (window-state window) +iconic-state+
 381           (xlib:window-event-mask window) (remove :structure-notify *window-events*))
 382     (xlib:unmap-window window)
 383     (setf (xlib:window-event-mask window) *window-events*)))
 384
 385
 386
 387 (defun window-type (window)
 388   "Return one of :desktop, :dock, :toolbar, :utility, :splash,
 389 :dialog, :transient, :maxsize and :normal."
 390   (or (and (let ((hints (xlib:wm-normal-hints window)))
 391              (and hints (or (xlib:wm-size-hints-max-width hints)
 392                             (xlib:wm-size-hints-max-height hints)
 393                             (xlib:wm-size-hints-min-aspect hints)
 394                             (xlib:wm-size-hints-max-aspect hints))))
 395            :maxsize)
 396       (let ((net-wm-window-type (xlib:get-property window :_NET_WM_WINDOW_TYPE)))
 397         (when net-wm-window-type
 398           (dolist (type-atom net-wm-window-type)
 399             (when (assoc (xlib:atom-name *display* type-atom) +netwm-window-types+)
 400               (return (cdr (assoc (xlib:atom-name *display* type-atom) +netwm-window-types+)))))))
 401       (and (xlib:get-property window :WM_TRANSIENT_FOR)
 402            :transient)
 403       :normal))
 404
 405
 406
 407
 408 ;;; Stolen from Eclipse
 409 (defun send-configuration-notify (window x y w h bw)
 410   "Send a synthetic configure notify event to the given window (ICCCM 4.1.5)"
 411   (xlib:send-event window :configure-notify (xlib:make-event-mask :structure-notify)
 412                    :event-window window
 413                    :window window
 414                    :x x :y y
 415                    :width w
 416                    :height h
 417                    :border-width bw
 418                    :propagate-p nil))
 419
 420
 421
 422 (defun send-client-message (window type &rest data)
 423   "Send a client message to a client's window."
 424   (xlib:send-event window
 425                    :client-message nil
 426                    :window window
 427                    :type type
 428                    :format 32
 429                    :data data))
 430
 431
 432
 433
 434
 435 (defun raise-window (window)
 436   "Map the window if needed and bring it to the top of the stack. Does not affect focus."
 437   (when (xlib:window-p window)
 438     (when (window-hidden-p window)
 439       (unhide-window window))
 440     (setf (xlib:window-priority window) :above)))
 441
 442 (defun focus-window (window)
 443   "Give the window focus."
 444   (when (xlib:window-p window)
 445     (xlib:set-input-focus *display* window :parent)))
 446
 447 (defun raise-and-focus-window (window)
 448   "Raise and focus."
 449   (raise-window window)
 450   (focus-window window))
 451
 452 (defun no-focus ()
 453   "don't focus any window but still read keyboard events."
 454   (xlib:set-input-focus *display* *no-focus-window* :pointer-root))
 455
 456
 457 (defun lower-window (window sibling)
 458   "Map the window if needed and bring it just above sibling. Does not affect focus."
 459   (when (xlib:window-p window)
 460     (when (window-hidden-p window)
 461       (unhide-window window))
 462     (setf (xlib:window-priority window sibling) :below)))
 463
 464
 465
 466
 467 (let ((cursor-font nil)
 468       (cursor nil)
 469       (pointer-grabbed nil))
 470   (defun free-grab-pointer ()
 471     (when cursor
 472       (xlib:free-cursor cursor)
 473       (setf cursor nil))
 474     (when cursor-font
 475       (xlib:close-font cursor-font)
 476       (setf cursor-font nil)))
 477
 478   (defun xgrab-init-pointer ()
 479     (setf pointer-grabbed nil))
 480
 481     (defun xgrab-pointer-p ()
 482       pointer-grabbed)
 483
 484     (defun xgrab-pointer (root cursor-char cursor-mask-char
 485                           &optional (pointer-mask '(:enter-window :pointer-motion
 486                                                     :button-press :button-release)) owner-p)
 487       "Grab the pointer and set the pointer shape."
 488       (when pointer-grabbed
 489         (xungrab-pointer))
 490       (setf pointer-grabbed t)
 491       (let* ((white (xlib:make-color :red 1.0 :green 1.0 :blue 1.0))
 492              (black (xlib:make-color :red 0.0 :green 0.0 :blue 0.0)))
 493         (cond (cursor-char
 494                (setf cursor-font (xlib:open-font *display* "cursor")
 495                      cursor (xlib:create-glyph-cursor :source-font cursor-font
 496                                                       :source-char (or cursor-char 68)
 497                                                       :mask-font cursor-font
 498                                                       :mask-char (or cursor-mask-char 69)
 499                                                       :foreground black
 500                                                       :background white))
 501                (xlib:grab-pointer root pointer-mask
 502                                        :owner-p owner-p  :sync-keyboard-p nil :sync-pointer-p nil :cursor cursor))
 503               (t
 504                (xlib:grab-pointer root pointer-mask
 505                                        :owner-p owner-p  :sync-keyboard-p nil :sync-pointer-p nil)))))
 506
 507     (defun xungrab-pointer ()
 508       "Remove the grab on the cursor and restore the cursor shape."
 509       (setf pointer-grabbed nil)
 510       (xlib:ungrab-pointer *display*)
 511       (xlib:display-finish-output *display*)
 512       (free-grab-pointer)))
 513
 514
 515 (let ((keyboard-grabbed nil))
 516   (defun xgrab-init-keyboard ()
 517     (setf keyboard-grabbed nil))
 518
 519   (defun xgrab-keyboard-p ()
 520     keyboard-grabbed)
 521
 522   (defun xgrab-keyboard (root)
 523     (setf keyboard-grabbed t)
 524     (xlib:grab-keyboard root :owner-p nil :sync-keyboard-p nil :sync-pointer-p nil))
 525
 526
 527   (defun xungrab-keyboard ()
 528     (setf keyboard-grabbed nil)
 529     (xlib:ungrab-keyboard *display*)))
 530
 531
 532
 533
 534
 535
 536 (defun ungrab-all-buttons (window)
 537   (xlib:ungrab-button window :any :modifiers :any))
 538
 539 (defun grab-all-buttons (window)
 540   (ungrab-all-buttons window)
 541   (xlib:grab-button window :any '(:button-press :button-release :pointer-motion)
 542                     :modifiers :any
 543                     :owner-p nil
 544                     :sync-pointer-p t
 545                     :sync-keyboard-p nil))
 546
 547 (defun ungrab-all-keys (window)
 548   (xlib:ungrab-key window :any :modifiers :any))
 549
 550
 551 (defun stop-button-event ()
 552   (xlib:allow-events *display* :sync-pointer))
 553
 554 (defun replay-button-event ()
 555   (xlib:allow-events *display* :replay-pointer))
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565 ;;; Mouse action on window
 566 (let (add-fn add-arg dx dy window)
 567   (define-handler move-window-mode :motion-notify (root-x root-y)
 568     (unless (compress-motion-notify)
 569       (if add-fn
 570           (multiple-value-bind (move-x move-y)
 571               (apply add-fn add-arg)
 572             (when move-x
 573               (setf (x-drawable-x window) (+ root-x dx)))
 574             (when move-y
 575               (setf (x-drawable-y window) (+ root-y dy))))
 576           (setf (x-drawable-x window) (+ root-x dx)
 577                 (x-drawable-y window) (+ root-y dy)))))
 578
 579   (define-handler move-window-mode :key-release ()
 580     (throw 'exit-move-window-mode nil))
 581
 582   (define-handler move-window-mode :button-release ()
 583     (throw 'exit-move-window-mode nil))
 584
 585   (defun move-window (orig-window orig-x orig-y &optional additional-fn additional-arg)
 586     (setf window orig-window
 587           add-fn additional-fn
 588           add-arg additional-arg
 589           dx (- (x-drawable-x window) orig-x)
 590           dy (- (x-drawable-y window) orig-y)
 591           (xlib:window-border window) (get-color *color-move-window*))
 592     (raise-window window)
 593     (let ((pointer-grabbed-p (xgrab-pointer-p)))
 594       (unless pointer-grabbed-p
 595         (xgrab-pointer *root* nil nil))
 596       (when additional-fn
 597         (apply additional-fn additional-arg))
 598       (generic-mode 'move-window-mode 'exit-move-window-mode
 599                     :original-mode '(main-mode))
 600       (unless pointer-grabbed-p
 601         (xungrab-pointer)))))
 602
 603
 604 (let (add-fn add-arg window
 605              o-x o-y
 606              orig-width orig-height
 607              min-width max-width
 608              min-height max-height)
 609   (define-handler resize-window-mode :motion-notify (root-x root-y)
 610     (unless (compress-motion-notify)
 611       (if add-fn
 612           (multiple-value-bind (resize-w resize-h)
 613               (apply add-fn add-arg)
 614             (when resize-w
 615               (setf (x-drawable-width window) (min (max (+ orig-width (- root-x o-x)) 10 min-width) max-width)))
 616             (when resize-h
 617               (setf (x-drawable-height window) (min (max (+ orig-height (- root-y o-y)) 10 min-height) max-height))))
 618           (setf (x-drawable-width window) (min (max (+ orig-width (- root-x o-x)) 10 min-width) max-width)
 619                 (x-drawable-height window) (min (max (+ orig-height (- root-y o-y)) 10 min-height) max-height)))))
 620
 621   (define-handler resize-window-mode :key-release ()
 622     (throw 'exit-resize-window-mode nil))
 623
 624   (define-handler resize-window-mode :button-release ()
 625     (throw 'exit-resize-window-mode nil))
 626
 627   (defun resize-window (orig-window orig-x orig-y &optional additional-fn additional-arg)
 628     (let* ((pointer-grabbed-p (xgrab-pointer-p))
 629            (hints (xlib:wm-normal-hints orig-window)))
 630       (setf window orig-window
 631             add-fn additional-fn
 632             add-arg additional-arg
 633             o-x orig-x
 634             o-y orig-y
 635             orig-width (x-drawable-width window)
 636             orig-height (x-drawable-height window)
 637             min-width (or (and hints (xlib:wm-size-hints-min-width hints)) 0)
 638             min-height (or (and hints (xlib:wm-size-hints-min-height hints)) 0)
 639             max-width (or (and hints (xlib:wm-size-hints-max-width hints)) most-positive-fixnum)
 640             max-height (or (and hints (xlib:wm-size-hints-max-height hints)) most-positive-fixnum)
 641             (xlib:window-border window) (get-color *color-move-window*))
 642       (raise-window window)
 643       (unless pointer-grabbed-p
 644         (xgrab-pointer *root* nil nil))
 645       (when additional-fn
 646         (apply additional-fn additional-arg))
 647       (generic-mode 'resize-window-mode 'exit-resize-window-mode
 648                     :original-mode '(main-mode))
 649       (unless pointer-grabbed-p
 650         (xungrab-pointer)))))
 651
 652
 653 (define-handler wait-mouse-button-release-mode :button-release ()
 654   (throw 'exit-wait-mouse-button-release-mode nil))
 655
 656 (defun wait-mouse-button-release (&optional cursor-char cursor-mask-char)
 657   (let ((pointer-grabbed-p (xgrab-pointer-p)))
 658     (unless pointer-grabbed-p
 659       (xgrab-pointer *root* cursor-char cursor-mask-char))
 660     (generic-mode 'wait-mouse-button-release 'exit-wait-mouse-button-release-mode)
 661     (unless pointer-grabbed-p
 662       (xungrab-pointer))))
 663
 664
 665
 666
 667 (let ((color-hash (make-hash-table :test 'equal)))
 668   (defun get-color (color)
 669     (multiple-value-bind (val foundp)
 670         (gethash color color-hash)
 671       (if foundp
 672           val
 673           (setf (gethash color color-hash)
 674                 (xlib:alloc-color (xlib:screen-default-colormap *screen*) color))))))
 675
 676
 677
 678 (defgeneric ->color (color))
 679
 680 (defmethod ->color ((color-name string))
 681   color-name)
 682
 683 (defmethod ->color ((color integer))
 684   (labels ((hex->float (color)
 685              (/ (logand color #xFF) 256.0)))
 686     (xlib:make-color :blue (hex->float color)
 687                      :green (hex->float (ash color -8))
 688                      :red (hex->float  (ash color -16)))))
 689
 690 (defmethod ->color ((color list))
 691   (destructuring-bind (red green blue) color
 692     (xlib:make-color :blue red :green green :red blue)))
 693
 694 (defmethod ->color ((color xlib:color))
 695   color)
 696
 697 (defmethod ->color (color)
 698   (format t "Wrong color type: ~A~%" color)
 699   "White")
 700
 701
 702 (defun color->rgb (color)
 703   (multiple-value-bind (r g b)
 704       (xlib:color-rgb color)
 705     (+ (ash (round (* 256 r)) +16)
 706        (ash (round (* 256 g)) +8)
 707        (round (* 256 b)))))
 708
 709
 710
 711
 712
 713 (defmacro my-character->keysyms (ch)
 714   "Convert a char to a keysym"
 715   ;; XLIB:CHARACTER->KEYSYMS should probably be implemented in NEW-CLX
 716   ;; some day.  Or just copied from MIT-CLX or some other CLX
 717   ;; implementation (see translate.lisp and keysyms.lisp).  For now,
 718   ;; we do like this.  It suffices for modifiers and ASCII symbols.
 719   (if (fboundp 'xlib:character->keysyms)
 720       `(xlib:character->keysyms ,ch)
 721       `(list
 722        (case ,ch
 723          (:character-set-switch #xFF7E)
 724          (:left-shift #xFFE1)
 725          (:right-shift #xFFE2)
 726          (:left-control #xFFE3)
 727          (:right-control #xFFE4)
 728          (:caps-lock #xFFE5)
 729          (:shift-lock #xFFE6)
 730          (:left-meta #xFFE7)
 731          (:right-meta #xFFE8)
 732          (:left-alt #xFFE9)
 733          (:right-alt #xFFEA)
 734          (:left-super #xFFEB)
 735          (:right-super #xFFEC)
 736          (:left-hyper #xFFED)
 737          (:right-hyper #xFFEE)
 738          (t
 739           (etypecase ,ch
 740             (character
 741              ;; Latin-1 characters have their own value as keysym
 742              (if (< 31 (char-code ,ch) 256)
 743                  (char-code ,ch)
 744                  (error "Don't know how to get keysym from ~A" ,ch)))))))))
 745
 746
 747
 748
 749 (defun char->keycode (char)
 750   "Convert a character to a keycode"
 751   (xlib:keysym->keycodes *display* (first (my-character->keysyms char))))
 752
 753
 754 (defun keycode->char (code state)
 755   (xlib:keysym->character *display* (xlib:keycode->keysym *display* code 0) state))
 756
 757 (defun modifiers->state (modifier-list)
 758   (apply #'xlib:make-state-mask modifier-list))
 759
 760 (defun state->modifiers (state)
 761   (xlib:make-state-keys state))
 762
 763 (defun keycode->keysym (code modifiers)
 764   (xlib:keycode->keysym *display* code (cond ((member :shift modifiers) 1)
 765                                              ((member :mod-5 modifiers) 4)
 766                                              (t 0))))
 767
 768
 769 (defmacro with-grab-keyboard-and-pointer ((cursor mask old-cursor old-mask) &body body)
 770   `(let ((pointer-grabbed (xgrab-pointer-p))
 771          (keyboard-grabbed (xgrab-keyboard-p)))
 772      (xgrab-pointer *root* ,cursor ,mask)
 773      (unless keyboard-grabbed
 774        (xgrab-keyboard *root*))
 775      (unwind-protect
 776           (progn
 777             ,@body)
 778        (if pointer-grabbed
 779            (xgrab-pointer *root* ,old-cursor ,old-mask)
 780            (xungrab-pointer))
 781        (unless keyboard-grabbed
 782          (xungrab-keyboard)))))
 783
 784
 785
 786
 787
 788
 789 (let ((modifier-list nil))
 790   (defun init-modifier-list ()
 791     (dolist (name '("Shift_L" "Shift_R" "Control_L" "Control_R"
 792                     "Alt_L" "Alt_R" "Meta_L" "Meta_R" "Hyper_L" "Hyper_R"
 793                     "Mode_switch" "script_switch" "ISO_Level3_Shift"
 794                     "Caps_Lock" "Scroll_Lock" "Num_Lock"))
 795       (awhen (xlib:keysym->keycodes *display* (keysym-name->keysym name))
 796         (push it modifier-list))))
 797
 798   (defun modifier-p (code)
 799     (member code modifier-list)))
 800
 801 (defun wait-no-key-or-button-press ()
 802   (with-grab-keyboard-and-pointer (66 67 66 67)
 803     (loop
 804        (let ((key (loop for k across (xlib:query-keymap *display*)
 805                      for code from 0
 806                      when (and (plusp k) (not (modifier-p code)))
 807                      return t))
 808              (button (loop for b in (xlib:make-state-keys (nth-value 4 (xlib:query-pointer *root*)))
 809                         when (member b '(:button-1 :button-2 :button-3 :button-4 :button-5))
 810                         return t)))
 811          (when (and (not key) (not button))
 812            (loop while (xlib:event-case (*display* :discard-p t :peek-p nil :timeout 0)
 813                          (:motion-notify () t)
 814                          (:key-press () t)
 815                          (:key-release () t)
 816                          (:button-press () t)
 817                          (:button-release () t)
 818                          (t nil)))
 819            (return))))))
 820
 821
 822 (defun wait-a-key-or-button-press ()
 823   (with-grab-keyboard-and-pointer (24 25 66 67)
 824     (loop
 825      (let ((key (loop for k across (xlib:query-keymap *display*)
 826                       unless (zerop k) return t))
 827            (button (loop for b in (xlib:make-state-keys (nth-value 4 (xlib:query-pointer *root*)))
 828                          when (member b '(:button-1 :button-2 :button-3 :button-4 :button-5))
 829                          return t)))
 830        (when (or key button)
 831          (return))))))
 832
 833
 834
 835 (defun compress-motion-notify ()
 836   (when *have-to-compress-notify*
 837     (loop while (xlib:event-cond (*display* :timeout 0)
 838                   (:motion-notify () t)))))
 839
 840
 841 (defun display-all-cursors (&optional (display-time 1))
 842   "Display all X11 cursors for display-time seconds"
 843   (loop for i from 0 to 152 by 2
 844      do (xgrab-pointer *root* i (1+ i))
 845        (dbg i)
 846        (sleep display-time)
 847        (xungrab-pointer)))
 848
 849
 850
 851 ;;; Double buffering tools
 852 (defun clear-pixmap-buffer (window gc)
 853   (if (equal *transparent-background* :pseudo)
 854       (xlib:copy-area *background-image* *background-gc*
 855                       (x-drawable-x window) (x-drawable-y window)
 856                       (x-drawable-width window) (x-drawable-height window)
 857                       *pixmap-buffer* 0 0)
 858       (xlib:with-gcontext (gc :foreground (xlib:gcontext-background gc)
 859                               :background (xlib:gcontext-foreground gc))
 860         (xlib:draw-rectangle *pixmap-buffer* gc
 861                              0 0 (x-drawable-width window) (x-drawable-height window)
 862                              t))))
 863
 864
 865 (defun copy-pixmap-buffer (window gc)
 866   (xlib:copy-area *pixmap-buffer* gc
 867                   0 0 (x-drawable-width window) (x-drawable-height window)
 868                   window 0 0))
 869
 870
 871
 872 (defun is-a-key-pressed-p ()
 873   (loop for k across (xlib:query-keymap *display*)
 874      when (plusp k)
 875      return t))
 876
 877 ;;; Windows wm class and name tests
 878 (defmacro defun-equal-wm-class (symbol class)
 879   `(defun ,symbol (window)
 880      (when (xlib:window-p window)
 881        (string-equal (xlib:get-wm-class window) ,class))))
 882
 883 (defmacro defun-equal-wm-name (symbol name)
 884   `(defun ,symbol (window)
 885      (when (xlib:window-p window)
 886        (string-equal (xlib:wm-name window) ,name))))
 887