318 lines
9.8 KiB
Scheme
318 lines
9.8 KiB
Scheme
(define-options-spec switch-wm-options-spec
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(titlebar-colors colors '("#aaaaaa" "#eeeeee" "#777777" "black"))
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(titlebar-colors-focused colors '("#666699" "#aaaacc" "#333366" "#eeeeee"))
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(titlebar-colors-active colors '("#9999aa" "#eeeeff" "#777788" "black"))
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(titlebar-height int 18)
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(titlebar-style symbol 'raised)
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(font font "-*-helvetica-medium-r-normal-*-12-*-*-*-*-*-*-*")
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(select-next keys "M-k n")
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(select-previous keys "M-k p")
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)
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(define (create-switch-wm out-channel dpy parent options default-options
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. children)
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(create-wm dpy parent options default-options children
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(manager-type switch) switch-wm-options-spec
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out-channel
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(lambda (wm in-channel)
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(init-switch-wm wm in-channel)
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wm)))
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(define-record-type switch-wm-data :switch-wm-data
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(make-switch-wm-data titlebars empty-titlebar)
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switch-wm-data?
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(titlebars data:titlebars set-data:titlebars!)
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(empty-titlebar data:empty-titlebar))
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(define (init-switch-wm wm channel)
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(let* ((dpy (wm:dpy wm))
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(window (wm:window wm))
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(options (wm:options wm))
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(gc (create-gc dpy window '()))
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(empty-titlebar (create-empty-titlebar wm))
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(data (make-switch-wm-data '() empty-titlebar)))
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(update-titlebars wm data)
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(grab-shortcut dpy window
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(get-option-value options 'select-next)
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'select-next channel #f)
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(grab-shortcut dpy window
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(get-option-value options 'select-previous)
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'select-previous channel #f)
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(spawn* (list 'switch-wm wm)
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(lambda (release)
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(release)
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(call-with-current-continuation
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(lambda (exit)
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(let loop ()
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(let ((msg (receive channel)))
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(handle-message wm data gc exit msg)
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(loop)))))
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(free-gc dpy gc)))))
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(define (handle-message wm data gc exit msg)
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(let ((dpy (wm:dpy wm))
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(window (wm:window wm)))
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(case (car msg)
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((wait)
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(let ((sp (second msg))
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(message (third msg)))
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(handle-message wm data gc
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(lambda args
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(sync-point-release sp)
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(apply exit args))
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message)
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(sync-point-release sp)))
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((deinit-manager)
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(destroy-titlebar (data:empty-titlebar data))
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(for-each (lambda (client.tb)
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(destroy-titlebar (cdr client.tb)))
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(data:titlebars data))
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(exit 'deinit-manager))
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((draw-main-window)
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(set-gc-foreground! dpy gc (black-pixel dpy))
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(fill-rectangle* dpy window gc
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(clip-rectangle dpy window)))
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((fit-windows)
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(fit-titlebars wm data)
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(for-each (lambda (c)
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(fit-client-window wm c))
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(wm-clients wm)))
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((init-client)
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(init-client wm data (second msg) (third msg)))
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((deinit-client)
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(deinit-client wm data (second msg)))
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((iconify-client maximize-client) #t)
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((configure-window)
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(let ((window (second msg))
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(changes (third msg)))
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;; TODO: exact sizes ?!
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(configure-window dpy window
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(append (make-window-change-alist
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(border-width 0))
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changes))))
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((draw-client-window) #f)
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((fit-client)
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;; client-window changed it's size
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(fit-client wm (second msg)))
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((fit-client-window)
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;; client changed it's size ??
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(fit-client-window wm (second msg)))
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((update-manager-state)
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(let* ((focused? (second msg))
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(state (if focused?
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'focused
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'active)))
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(set-titlebar-state! (data:empty-titlebar data) state)))
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((manager-focused)
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(let ((time (second msg))
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(cc (wm-current-client wm)))
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(if cc (wm-select-client wm cc time))))
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((update-client-state)
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(let* ((client (second msg))
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(focused? (third msg))
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(dpy (wm:dpy wm))
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(window (client:window client))
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(titlebar (assq/false client (data:titlebars data))))
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(if (and titlebar (window-exists? dpy window))
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(let ((state (if focused?
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'focused
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(if (window-viewable? dpy window)
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'active
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'normal))))
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(set-titlebar-state! titlebar state)))))
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((update-client-name)
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(let ((client (second msg))
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(name (third msg)))
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(let ((titlebar (assq/false client (data:titlebars data))))
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(if titlebar
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(set-titlebar-title! titlebar name)))))
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((select-next) (select-next-client wm (second msg)))
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((select-previous) (select-previous-client wm (second msg)))
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((show-clients)
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(let ((clients (second msg)))
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;; it's a list of a client and it's transients.
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(let ((cc (wm-current-client wm))
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(top (last clients)))
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(if (and cc (window-mapped? dpy (client:client-window cc)))
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(unmap-window dpy (client:client-window cc)))
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(map-window dpy (client:client-window top)))))
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(else (warn "unhandled switch-wm message" wm msg)))))
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(define (fit-titlebars wm data)
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(let* ((dpy (wm:dpy wm))
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(width (window-width dpy (wm:window wm)))
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(height (window-height dpy (wm:window wm)))
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(titlebar-height (get-option-value (wm:options wm) 'titlebar-height)))
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(if (> titlebar-height 0)
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(begin
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(move-resize-titlebar (data:empty-titlebar data)
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(make-rectangle 0 0 width titlebar-height))
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(let* ((titlebars (map cdr (data:titlebars data)))
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(n (length titlebars))
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(widths (if (zero? n) '()
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(let ((dw (quotient width n)))
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(append (map (lambda (_) dw) (iota (- n 1)))
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(list (- width (* dw (- n 1)))))))))
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(for-each (lambda (i width titlebar)
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(move-resize-titlebar
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titlebar
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(make-rectangle (* i width) 0
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width titlebar-height)))
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(iota n) widths titlebars))))))
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(define (update-titlebars wm data)
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(if (> (get-option-value (wm:options wm) 'titlebar-height) 0)
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(if (null? (data:titlebars data))
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(map-titlebar (data:empty-titlebar data))
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(begin
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(unmap-titlebar (data:empty-titlebar data))
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(for-each (lambda (c.t)
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(map-titlebar (cdr c.t)))
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(data:titlebars data))))))
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(define (init-client wm data client maybe-rect)
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(let ((dpy (wm:dpy wm))
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(options (wm:options wm)))
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(let* ((channel (make-channel))
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(titlebar (create-client-titlebar channel wm client)))
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(set-data:titlebars! data (append (data:titlebars data)
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(list (cons client titlebar))))
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(set-titlebar-title! titlebar (client-name dpy client))
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(fit-titlebars wm data)
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(update-titlebars wm data)
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(fit-client-window wm client)
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(fit-client wm client)
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(install-dragging-control channel dpy
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(titlebar:window titlebar)
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(titlebar:window titlebar))
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(spawn*
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(list 'switch-wm-client-handler wm client)
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(lambda (release)
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(release)
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(let loop ()
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(let ((msg (receive channel)))
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(case (car msg)
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((drop)
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;; check if outside...
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(let ((root-x (fourth msg))
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(root-y (fifth msg)))
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(let ((r (root-rectangle dpy (wm:window wm))))
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(if (not (point-in-rectangle? r root-x root-y))
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(send (wm:out-channel wm)
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(list 'root-drop (client:window client)
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root-x root-y))))))
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((click)
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(wm-select-client wm client (fourth msg)))
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;; from titlebar-buttons
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((kill)
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(delete-window dpy (client:window client) (second msg)))
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(else (warn "unhandled client message " wm client msg))))
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(loop))))
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(map-titlebar titlebar)
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(if (window-exists? dpy (client:window client))
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(map-window dpy (client:window client)))
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(wm-select-client wm client current-time))))
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(define (create-client-titlebar channel wm client)
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(let ((options (wm:options wm)))
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(create-titlebar channel (wm:dpy wm) (wm:window wm)
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(wm:colormap wm)
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(list (cons 'buttons '(kill))
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(cons 'normal-colors
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(get-option options 'titlebar-colors))
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(cons 'active-colors
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(get-option options 'titlebar-colors-active))
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(cons 'focused-colors
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(get-option options 'titlebar-colors-focused))
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(cons 'border-style
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(get-option options 'titlebar-style))))))
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(define (create-empty-titlebar wm)
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(let* ((options (wm:options wm))
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(tb
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(create-titlebar #f (wm:dpy wm) (wm:window wm) (wm:colormap wm)
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(list
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(cons 'normal-colors
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(get-option options 'titlebar-colors))
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(cons 'active-colors
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(get-option options 'titlebar-colors-active))
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(cons 'focused-colors
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(get-option options 'titlebar-colors-focused))
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(cons 'border-style
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(get-option options 'titlebar-style))
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(cons 'buttons '())))))
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(set-titlebar-title! tb "<empty frame>")
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tb))
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(define (deinit-client wm data client)
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(let ((dpy (wm:dpy wm))
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(tb (assq/false client (data:titlebars data))))
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(set-data:titlebars! data (filter (lambda (c.t)
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(not (eq? (car c.t) client)))
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(data:titlebars data)))
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(if tb (destroy-titlebar tb))
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(fit-titlebars wm data)
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(update-titlebars wm data)
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(if (eq? client (wm-current-client wm))
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(if (null? (wm-clients wm))
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(set-input-focus dpy (wm:window wm) (revert-to parent)
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current-time)
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(wm-select-client wm (car (wm-clients wm)) current-time)))))
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;; ***
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(define (fit-client wm client)
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(let ((window (client:window client))
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(dpy (wm:dpy wm)))
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(if (window-exists? dpy window)
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(maximize-window dpy window))))
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(define (fit-client-window wm client)
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(let* ((dpy (wm:dpy wm))
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(w (wm:window wm))
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(options (wm:options wm))
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(titlebar-height (get-option-value options 'titlebar-height)))
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(move-resize-window dpy (client:client-window client)
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0 titlebar-height
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(window-width dpy w) (- (window-height dpy w)
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titlebar-height))))
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;; ***
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(define (select-next-client* wm clients time)
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(let ((cc (wm-current-client wm)))
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(let loop ((l (append clients clients)))
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(and (not (null? l))
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(if (eq? (car l) cc)
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(and (not (null? (cdr l)))
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(wm-select-client wm (cadr l) time))
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(loop (cdr l)))))))
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(define (select-next-client wm time)
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(select-next-client* wm (wm-clients wm) time))
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(define (select-previous-client wm time)
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(select-next-client* wm (reverse (wm-clients wm)) time))
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