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foreign-application.lisp
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foreign-application.lisp
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;;;; Copyright (C) 2020 Andrea De Michele
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 2.1 of the License, or (at your option) any later version.
;;;;
;;;; This library is distributed in the hope that it will be useful,
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
;;;; USA
(in-package :clim-doors)
(defparameter *foreign-window-events* '(:structure-notify
:property-change
:focus-change
:enter-window))
(defclass foreign-application-pane (mirrored-sheet-mixin ; must be the first
fundamental-input-stream
basic-gadget)
())
(defmethod foreign-xwindow ((pane foreign-application-pane))
(foreign-xwindow (pane-frame pane)))
(defmethod handle-event ((pane foreign-application-pane) (event window-manager-configuration-request-event))
(change-space-requirements pane))
(defmethod handle-event ((pane foreign-application-pane) (event pointer-button-press-event))
(let* ((frame (pane-frame pane))
(port (port frame)))
(setf (active-frame port) frame)))
(defmethod handle-event ((pane foreign-application-pane) (event window-destroy-event))
(let ((frame (pane-frame pane)))
(frame-exit frame)))
(defmethod compose-space ((pane foreign-application-pane) &key width height)
(declare (ignore width height))
(let* ((xwin (foreign-xwindow pane))
(hints (and xwin (xlib:wm-normal-hints xwin)))
(hw (when hints (xlib:wm-size-hints-width hints)))
(hh (when hints (xlib:wm-size-hints-height hints)))
(width (or hw (ignore-errors (xlib:drawable-width xwin))))
(height (or hh (ignore-errors (xlib:drawable-height xwin)))))
(make-space-requirement :width (or width 800)
:height (or height 600))))
(defmethod allocate-space ((pane foreign-application-pane) width height)
(call-next-method)
(let* ((xparent (clim-clx::window (sheet-mirror pane)))
(xwindow (foreign-xwindow pane))
(w (xlib:drawable-width xparent))
(h (xlib:drawable-height xparent)))
(when xwindow
(setf (xlib:drawable-width xwindow) w)
(setf (xlib:drawable-height xwindow) h)
(send-configure-notify xwindow))))
(define-application-frame foreign-application ()
((foreign-xwindow :initarg :foreign-xwindow :initform nil :accessor foreign-xwindow))
(:panes (main (make-pane 'foreign-application-pane)))
(:menu-bar nil)
(:layouts (:default (vertically () main)))
(:top-level (foreign-application-frame-top-level . nil)))
(defun foreign-application-p (frame)
(typep frame 'foreign-application))
(defmethod (setf active-frame) :after ((frame foreign-application) (port doors-port))
(when-let ((window (foreign-xwindow frame)))
(when (member (frame-properties frame :input-model) '(:passive :locally-active))
(xlib:set-input-focus (clim-clx::clx-port-display (port frame))
window :parent))
(when (member (frame-properties frame :input-model) '(:locally-active :globally-active))
(send-client-message (foreign-xwindow frame) :wm_take_focus (x-server-timestamp port)))))
(defmethod foreign-application-frame-top-level ((frame application-frame))
(clim-extensions:simple-event-loop))
(defmethod frame-exit :around ((frame foreign-application))
(when-let ((window (foreign-xwindow frame)))
;; maybe is necessary also to remap window to root if window is not destroyed
;; is necessary to kill the window??
(port-unregister-foreign-application (port frame) (find-pane-named frame 'main) window)
(send-client-message window :WM_DELETE_WINDOW (x-server-timestamp (port frame))))
(call-next-method))
(defmethod disown-frame :before ((frame-manager doors-frame-manager) (frame foreign-application))
(when-let ((window (foreign-xwindow frame)))
(xlib:reparent-window window (clim-clx::window (sheet-mirror (graft (port frame)))) 0 0)))
(defmethod adopt-frame :after ((frame-manager doors-frame-manager) (frame foreign-application))
(let* ((window (foreign-xwindow frame))
(pane (find-pane-named frame 'main))
(parent-window (clim-clx::window (sheet-mirror pane))))
(when window
(port-register-foreign-application (port frame-manager) pane window))
(xlib:grab-button parent-window 1 '(:button-press)
:owner-p nil
:sync-pointer-p t
:sync-keyboard-p nil)
(setf (xlib:window-event-mask parent-window) '(:substructure-notify :substructure-redirect))
(when window
(xlib:with-server-grabbed ((clim-clx::clx-port-display (port frame-manager)))
(xlib:reparent-window window parent-window 0 0)
(xlib:map-window window)))))
(defun calculate-initial-position (window)
;; for the moment I don't check win-gravity. In this way I assume always north-west
;; and for the moment I don't check hints at all
(let* ((hints (xlib:wm-normal-hints window))
(hx (when hints (xlib:wm-size-hints-x hints)))
(hy (when hints (xlib:wm-size-hints-y hints)))
(x (or hx (ignore-errors (xlib:drawable-x window))))
(y (or hy (ignore-errors (xlib:drawable-y window)))))
(values x y)))
(defun initial-state (window)
(let ((hints (xlib:wm-hints window)))
(if (and hints
(eql :iconic (xlib:wm-hints-initial-state hints)))
:shrunk
:enabled)))
(defun make-foreign-application (window &key (frame-manager (find-frame-manager)))
(let ((initial-state (initial-state window))
(input (icccm-input-model window)))
(log:warn input)
(multiple-value-bind (x y) (calculate-initial-position window)
(let* ((frame (make-application-frame 'foreign-application
:foreign-xwindow window
:left x
;; :state initial-state ; some problem with this
:top y
:frame-manager frame-manager))
(name (or (ignore-errors (doors::net-wm-name window))
(ignore-errors (xlib:wm-name window))
"NoWin")))
(setf (xlib:window-event-mask window) *foreign-window-events*)
(setf (frame-properties frame :input-model) input)
(clim-sys:make-process #'(lambda () (run-frame-top-level frame)) :name (format nil "Foreign App: ~a" name))
;; usare semafori invece o server grab
(sleep 0.5)))))
(defun foreign-application-unmanage-xwindow (frame)
(when-let ((window (foreign-xwindow frame))
(root (clim-clx::window (sheet-mirror (graft frame))))
(pane (find-pane-named frame 'main)))
(setf (xlib:window-event-mask window) 0)
(multiple-value-bind (x y)
(xlib:translate-coordinates window 0 0 root)
(xlib:reparent-window window root x y))
(port-unregister-foreign-application (port frame) pane window)
(setf (foreign-xwindow frame) nil)))
(defun restart-foreign-application (frame)
(when (foreign-application-p frame)
(let ((xwindow (foreign-xwindow frame)))
(foreign-application-unmanage-xwindow frame)
(destroy-frame frame)
(make-foreign-application xwindow))))