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| | ;;; haiku-win.el --- set up windowing on Haiku -*- lexical-binding: t -*-
;; Copyright (C) 2021 Free Software Foundation, Inc.
;; This file is part of GNU Emacs.
;; GNU Emacs 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.
;; GNU Emacs 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 GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
;;; Commentary:
;; Support for using Haiku's BeOS derived windowing system.
;;; Code:
(eval-when-compile (require 'cl-lib))
(unless (featurep 'haiku)
(error "%s: Loading haiku-win without having Haiku"
invocation-name))
;; Documentation-purposes only: actually loaded in loadup.el.
(require 'frame)
(require 'mouse)
(require 'scroll-bar)
(require 'menu-bar)
(require 'fontset)
(require 'dnd)
(add-to-list 'display-format-alist '(".*" . haiku-win))
;;;; Command line argument handling.
(defvar x-invocation-args)
(defvar x-command-line-resources)
(defvar haiku-initialized)
(declare-function x-open-connection "haikufns.c")
(declare-function x-handle-args "common-win")
(declare-function haiku-selection-data "haikuselect.c")
(declare-function haiku-selection-put "haikuselect.c")
(declare-function haiku-put-resource "haikufns.c")
(defun haiku--handle-x-command-line-resources (command-line-resources)
"Handle command line X resources specified with the option `-xrm'.
The resources should be a list of strings in COMMAND-LINE-RESOURCES."
(dolist (s command-line-resources)
(let ((components (split-string s ":")))
(when (car components)
(haiku-put-resource (car components)
(string-trim-left
(mapconcat #'identity (cdr components) ":")))))))
(cl-defmethod window-system-initialization (&context (window-system haiku)
&optional display)
"Set up the window system. WINDOW-SYSTEM must be HAIKU.
DISPLAY may be set to the name of a display that will be initialized."
(cl-assert (not haiku-initialized))
(create-default-fontset)
(when x-command-line-resources
(haiku--handle-x-command-line-resources
(split-string x-command-line-resources "\n")))
(x-open-connection (or display "be") x-command-line-resources t)
(setq haiku-initialized t))
(cl-defmethod frame-creation-function (params &context (window-system haiku))
(x-create-frame-with-faces params))
(cl-defmethod handle-args-function (args &context (window-system haiku))
(x-handle-args args))
(defun haiku--selection-type-to-mime (type)
"Convert symbolic selection type TYPE to its MIME equivalent.
If TYPE is nil, return \"text/plain\"."
(cond
((memq type '(TEXT COMPOUND_TEXT STRING UTF8_STRING)) "text/plain")
((stringp type) type)
(t "text/plain")))
(cl-defmethod gui-backend-get-selection (type data-type
&context (window-system haiku))
(haiku-selection-data type (haiku--selection-type-to-mime data-type)))
(cl-defmethod gui-backend-set-selection (type value
&context (window-system haiku))
(haiku-selection-put type "text/plain" value))
(cl-defmethod gui-backend-selection-exists-p (selection
&context (window-system haiku))
(haiku-selection-data selection "text/plain"))
(cl-defmethod gui-backend-selection-owner-p (_
&context (window-system haiku))
t)
(declare-function haiku-read-file-name "haikufns.c")
(defun x-file-dialog (prompt dir default_filename mustmatch only_dir_p)
"SKIP: real doc in xfns.c."
(if (eq (framep-on-display (selected-frame)) 'haiku)
(haiku-read-file-name prompt (selected-frame)
(or dir (and default_filename
(file-name-directory default_filename)))
mustmatch only_dir_p
(file-name-nondirectory default_filename))
(error "x-file-dialog on a tty frame")))
(defun haiku-dnd-handle-drag-n-drop-event (event)
"Handle specified drag-n-drop EVENT."
(interactive "e")
(let* ((string (caddr event))
(window (posn-window (event-start event))))
(with-selected-window window
(raise-frame)
(dnd-handle-one-url window 'private (concat "file:" string)))))
(define-key special-event-map [drag-n-drop]
'haiku-dnd-handle-drag-n-drop-event)
(provide 'haiku-win)
(provide 'term/haiku-win)
;;; haiku-win.el ends here
|