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;; geiser-popup.el -- popup windows
;; Copyright (C) 2009 Jose Antonio Ortega Ruiz
;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
;; Start date: Sat Feb 07, 2009 14:05
;; This file is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3 of the License, or
;; (at your option) any later version.
;; This file 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 General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Comentary:
;; Utilities for defining pop-up windows that get easily out of the
;; way.
;;; Code:
(make-variable-buffer-local
(defvar geiser-popup--created-window nil))
(make-variable-buffer-local
(defvar geiser-popup--selected-window nil))
(defun geiser-popup--display (&optional buffer)
(when buffer (set-buffer buffer))
(let ((selected-window (selected-window))
(buffer (current-buffer)))
(unless (eq selected-window (get-buffer-window buffer))
(let ((windows))
(walk-windows (lambda (w) (push w windows)) nil t)
(prog1 (pop-to-buffer buffer)
(set (make-local-variable 'geiser-popup--created-window)
(unless (memq (selected-window) windows) (selected-window)))
(set (make-local-variable 'geiser-popup--selected-window)
selected-window))))))
(defun geiser-popup--quit ()
(interactive)
(let ((selected geiser-popup--selected-window)
(created geiser-popup--created-window))
(bury-buffer)
(when (eq created (selected-window)) (delete-window created))
(when (window-live-p selected) (select-window selected))))
(define-minor-mode geiser-popup-mode
"Mode for displaying read only stuff"
nil nil
'(("q" . geiser-popup--quit))
(setq buffer-read-only t))
;;; Support for defining popup buffers and accessors:
(defvar geiser-popup--registry nil)
(defmacro geiser-popup--define (base name mode)
(let ((get-buff (intern (format "geiser-%s--buffer" base)))
(pop-buff (intern (format "geiser-%s--pop-to-buffer" base)))
(with-macro (intern (format "geiser-%s--with-buffer" base)))
(method (make-symbol "method")))
`(progn
(add-to-list 'geiser-popup--registry ,name)
(defun ,get-buff ()
(or (get-buffer ,name)
(with-current-buffer (get-buffer-create ,name)
(,mode)
(geiser-popup-mode)
(current-buffer))))
(defun ,pop-buff (&optional ,method)
(cond ((eq ,method 'buffer) (switch-to-buffer (,get-buff)))
((eq ,method 'frame) (switch-to-buffer-other-frame (,get-buff)))
(t (geiser-popup--display (,get-buff)))))
(defmacro ,with-macro (&rest body)
(let ((buff ',get-buff))
`(with-current-buffer (funcall ',buff)
(let ((inhibit-read-only t))
,@body))))
(put ',with-macro 'lisp-indent-function 'defun))))
(put 'geiser-popup--define 'lisp-indent-function 1)
;;; Reload support:
(defun geiser-popup-unload-function ()
(dolist (name geiser-popup--registry)
(when (buffer-live-p (get-buffer name))
(kill-buffer name))))
(provide 'geiser-popup)
;;; geiser-popup.el ends here
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