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"There is more than one element in this redisplay pane")
(window-clear pane))
(unless (zerop (output-record-count history :fastp t))
(output-record-element history 0))))))
(cond ((or (null redisplay-record) force-p)
(when force-p
(window-clear pane))
(invoke-pane-redisplay-function frame pane))
(t
(redisplay redisplay-record pane
:check-overlapping check-overlapping)))))
((or force-p (pane-needs-redisplay pane))
(multiple-value-bind (needs-display clear)
(pane-needs-redisplay pane)
(declare (ignore needs-display))
(when (or force-p clear)
(window-clear pane)))
(invoke-pane-display-function frame pane)))
(force-output pane))
(force-p
;; If refilling from scratch, give the application a chance
;; to draw stuff
(frame-replay frame pane))
;; Otherwise do nothing, the bits will still be on display
;; and will be refreshed properly if there's a damage event.
)))))))
;; Factored out of the above to avoid consing closures
(defun invoke-pane-redisplay-function (frame pane &rest args)
(declare (dynamic-extent args))
(updating-output (pane)
(apply #'invoke-pane-display-function frame pane args)))
(defun invoke-pane-display-function (frame pane &rest args)
(declare (dynamic-extent args))
(let* ((df (pane-display-function pane))
(display-args (if (listp df) (rest df) nil))
(display-function (if (listp df) (first df) df)))
;; Cons as little as possible...
(cond ((and (null args) (null display-args))
(funcall display-function frame pane))
((null display-args)
(apply display-function frame pane args))
((null args)
(apply display-function frame pane display-args))
(t
(apply display-function frame pane (append args display-args))))))
;;; The contract of this is to replay the contents of STREAM within the region.
(defmethod frame-replay ((frame standard-application-frame) stream &optional region)
(stream-replay stream region)
(force-output stream))
;; should the rest of the *command-parser*
;; etc. variables be passed as keywords or bound?
)
(read-command (frame-command-table frame) :stream stream))
(defmethod execute-frame-command :around ((frame standard-application-frame) command)
(let ((top-level-process (slot-value frame 'top-level-process)))
(if (and top-level-process
(eq top-level-process (current-process)))
;; If we're in the process for the frame, just execute the command
(call-next-method)
;; Otherwise arrange to run the command in the frame's process
(execute-command-in-frame frame command))))
(defmethod execute-frame-command ((frame standard-application-frame) command)
(apply (command-name command) (command-arguments command)))
(defmethod command-enabled (command-name (frame standard-application-frame))
(with-slots (disabled-commands) frame
(or *assume-all-commands-enabled*
(and (not (member command-name disabled-commands))
(command-accessible-in-command-table-p
command-name (frame-command-table frame))))))
(defmethod (setf command-enabled) (enabled command-name (frame standard-application-frame))
(with-slots (disabled-commands) frame
(cond (enabled
(setf disabled-commands (delete command-name disabled-commands))
(note-command-enabled (frame-manager frame) frame command-name))
(t
(push command-name disabled-commands)
(note-command-enabled (frame-manager frame) frame command-name)))))
;;--- There is the compiler bug with (eval-when (compile load eval) ...)
;;--- DEFMETHOD with a CALL-NEXT-METHOD. See to incorporate this patch.
(eval-when (#-Allegro compile load eval)
(define-condition synchronous-command-event ()
((command :initarg :command :reader synchronous-command-event-command))
(:report (lambda (condition stream)
(format stream "Command event condition signalled for ~S"
(synchronous-command-event-command condition)))))
) ;eval-when
(defmethod read-frame-command :around ((frame standard-application-frame) &key)
(let* ((command (queue-pop (frame-command-queue frame))))
(or command
(handler-bind ((synchronous-command-event
#'(lambda (c)
(return-from read-frame-command
(synchronous-command-event-command c)))))
((value :initarg :value :reader presentation-event-value)
(sheet :initarg :sheet :reader event-sheet)
(frame :initarg :frame :reader event-frame)
(queuep :initarg :queuep :initform nil)
(presentation-type :initarg :presentation-type :reader event-presentation-type))
(defmethod handle-event (sheet (event presentation-event))
(process-command-event sheet event))
(defun process-command-event (sheet event)
;;--- This code is as bad as I feel.
(let ((command (presentation-event-value event)))
(if (partial-command-p command)
(throw-highlighted-presentation
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(make-instance 'standard-presentation
:object command
:type (event-presentation-type event))
*input-context*
(allocate-event 'pointer-button-press-event
:sheet sheet
:x 0 :y 0
:modifier-state 0
:button +pointer-left-button+))
(let ((frame (event-frame event))
activity)
(when (and *input-buffer-empty*
(or (eq *application-frame* frame)
(and (typep frame 'activity-frame)
(eq (frame-activity frame) *activity*)
(setq activity *activity*))))
(signal 'synchronous-command-event
:command command))
;; Perhaps if this results directly from a user action then either
;; we should do it right away, ie. lose the input buffer or beep if
;; it has to be deferred,
(if (slot-value event 'queuep)
(queue-frame-command (if activity (activity-active-frame activity) frame)
(presentation-event-value event))
(beep sheet))))))
(defun queue-frame-command (frame command)
(queue-push (frame-command-queue frame) command))
(defmethod execute-command-in-frame
((frame standard-application-frame) command &rest initargs)
(declare (dynamic-extent initargs))
(apply #'allocate-event 'presentation-event
:frame frame
:sheet (frame-top-level-sheet frame)
:value command
initargs)))
(defun make-command-timer (frame command
&key (delay 0) interval
(command-table (frame-command-table frame)))
(flet ((queue-command-event (timer)
(declare (ignore timer))
(execute-command-in-frame
frame command
:queuep t
:presentation-type `(command :command-table ,command-table))))
(let ((timer (make-timer
:function #'queue-command-event
:delay delay :interval interval)))
(add-timer timer)
;;; The contract of this is to find an "appropriate" presentation; i.e., one
;;; satisfying the input context specified by TYPE. Everything that looks for a
;;; presentation goes through this so that applications can specialize it.
(defmethod frame-find-innermost-applicable-presentation
((frame standard-application-frame) input-context stream x y &key event)
(find-innermost-applicable-presentation
input-context stream x y
:frame frame
:modifier-state (window-modifier-state stream) :event event))
(declare (ignore stream))
(let* ((window (event-sheet button-press-event))
(x (pointer-event-x button-press-event))
(y (pointer-event-y button-press-event))
(highlighted-presentation (highlighted-presentation window nil))
(input-context *input-context*))
(when (and *click-outside-menu-handler*
(output-recording-stream-p window)
(funcall *click-outside-menu-handler*))
(when highlighted-presentation
;; Unhighlight on the way out.
;; But only unhighlight the window that the click is from.
(unhighlight-highlighted-presentation window nil))
(throw-highlighted-presentation
(or (and (output-recording-stream-p window)
(frame-find-innermost-applicable-presentation
frame input-context window x y
:event button-press-event))
*null-presentation*)
input-context
button-press-event)))
(defun find-frame-pane-of-type (frame type)
(return-from find-frame-pane-of-type sheet)))
(frame-top-level-sheet frame)))
(defmethod frame-standard-output ((frame standard-application-frame))
(or (find-frame-pane-of-type frame 'application-pane)
(find-frame-pane-of-type frame 'interactor-pane)))
(defmethod frame-standard-input ((frame standard-application-frame))
(or (find-frame-pane-of-type frame 'interactor-pane)
(frame-standard-output frame)))
(defmethod frame-error-output ((frame standard-application-frame))
(frame-standard-output frame))
(defmethod frame-pointer-documentation-output ((frame standard-application-frame))
;;--- This causes direct-manipulation and menu-driven applications not to
;;--- maintain histories. Is there a better heuristic?
(defmethod frame-maintain-presentation-histories ((frame standard-application-frame))
(not (null (find-frame-pane-of-type frame 'interactor-pane))))
(declare (dynamic-extent options))
(when frame
(setf (getf options :frame) frame))
(apply #'frame-manager-notify-user
(if frame (frame-manager frame) (find-frame-manager)) message options))
(declare (dynamic-extent options))
(when frame
(setf (getf options :frame) frame))
(apply #'frame-manager-select-file
(if frame (frame-manager frame) (find-frame-manager)) options))
(defvar *pointer-documentation-interval*
(max (floor (* 1/10 internal-time-units-per-second)) 1))
(defvar *last-pointer-documentation-time* 0)
;;; Produce pointer documentation
(defmethod frame-document-highlighted-presentation
((frame standard-application-frame) presentation input-context window x y stream)
(frame-manager-display-pointer-documentation
(frame-manager frame) frame presentation input-context window x y stream))
(defmethod frame-manager-display-pointer-documentation
((framem standard-frame-manager)
frame presentation input-context window x y stream)
(when stream
;; The documentation should never say anything if we're not over a presentation
(when (null presentation)
;; Cheap test to not do this work too often
(let ((old-modifier-state *last-pointer-documentation-modifier-state*)
(modifier-state (window-modifier-state window))
(last-time *last-pointer-documentation-time*)
(time (get-internal-real-time)))
(setq *last-pointer-documentation-modifier-state* modifier-state)
(when (and (< time (+ last-time *pointer-documentation-interval*))
(= modifier-state old-modifier-state))
(setq *last-pointer-documentation-time* time))
(when presentation
(with-output-recording-options (stream :record nil)
(with-end-of-line-action (stream :allow)
(with-end-of-page-action (stream :allow)
(window-clear stream)
(when (null (frame-document-highlighted-presentation-1
frame presentation input-context window x y stream))
(setq *last-pointer-documentation-time* 0))
(force-output stream)))))))
(defun frame-document-highlighted-presentation-1
(frame presentation input-context window x y stream)
(let ((modifier-state (window-modifier-state window)))
(multiple-value-bind (left left-presentation left-context
middle middle-presentation middle-context
right right-presentation right-context)
(find-applicable-translators-for-documentation presentation input-context
frame window x y modifier-state)
(let* ((*print-length* 3)
(*print-level* 2)
(*print-circle* nil)
(*print-array* nil)
(*print-readably* nil)
(*print-pretty* nil))
(flet ((document-translator (translator presentation context-type
button-name separator)
;; Assumes 5 modifier keys and the reverse ordering of *MODIFIER-KEYS*
(let ((bit #o20)
(shift-name '("h-" "s-" "m-" "c-" "sh-")))
(unless (zerop (logand bit modifier-state))
(write-string (car shift-name) stream))
(pop shift-name)
(setq bit (the fixnum (ash bit -1)))))
(write-string button-name stream)
(document-presentation-translator translator presentation context-type
frame nil window x y
:stream stream
:documentation-type :pointer)
(write-string separator stream)))
(declare (dynamic-extent #'document-translator))
;;--- The button names should be hard-wired in. Consider 1-button
;;--- Macs and 2-button PCs...
(let ((button-name (cond ((and (eq left middle)
(eq left right))
(document-translator left left-presentation left-context
button-name (if (or middle right) "; " "."))))
(document-translator middle middle-presentation middle-context
button-name (if right "; " "."))))
(document-translator right right-presentation right-context
"R: " "."))
;; Return non-NIL if any pointer documentation was produced
(or left middle right))))))
;; This is derived directly from FIND-APPLICABLE-TRANSLATORS
(defun find-applicable-translators-for-documentation
(presentation input-context frame window x y modifier-state)
;; Assume a maximum of three pointer buttons
(let ((left nil) (left-presentation nil) (left-context nil)
(middle nil) (middle-presentation nil) (middle-context nil)
(right nil) (right-presentation nil) (right-context nil))
(macrolet ((match (translator presentation context-type button)
(let* ((symbol (symbol-name button))
(button-translator (intern symbol))
(button-presentation (fintern "~A-~A" symbol 'presentation))
(button-context (fintern "~A-~A" symbol 'context)))
`(when (and (or (null ,button-translator)
(> (presentation-translator-priority ,translator)
(presentation-translator-priority ,button-translator)))
(button-and-modifier-state-matches-gesture-name-p
(button-index ,button) modifier-state
(presentation-translator-gesture-name ,translator)))
(setq ,button-translator ,translator
,button-context ,context-type)))))
(do ((presentation presentation
(parent-presentation-with-shared-box presentation window)))
((null presentation))
(let ((from-type (presentation-type presentation)))
(dolist (context input-context)
(let ((context-type (pop context))) ;input-context-type = first
(let ((translators (find-presentation-translators
from-type context-type (frame-command-table frame))))
(when translators
(dolist (translator translators)
(when (test-presentation-translator translator
presentation context-type
frame window x y
:modifier-state modifier-state)
(match translator presentation context-type :left)
(match translator presentation context-type :middle)
(match translator presentation context-type :right)))))
(when (and (or left middle right)
*presentation-menu-translator*
(test-presentation-translator *presentation-menu-translator*
presentation context-type
frame window x y
:modifier-state modifier-state))
(match *presentation-menu-translator* presentation context-type :left)
(match *presentation-menu-translator* presentation context-type :middle)
(match *presentation-menu-translator* presentation context-type :right)))))))
(values left left-presentation left-context
middle middle-presentation middle-context
right right-presentation right-context)))
(defmethod port-note-frame-adopted ((port port) (frame standard-application-frame))
nil)