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|
;;;
;;; $Id:$
;;;
;;; plugin.scm: Plugin for uim.
;;;
;;; Copyright (c) 2005-2009 uim Project http://code.google.com/p/uim/
;;;
;;; All rights reserved.
;;;
;;; Redistribution and use in source and binary forms, with or without
;;; modification, are permitted provided that the following conditions
;;; are met:
;;; 1. Redistributions of source code must retain the above copyright
;;; notice, this list of conditions and the following disclaimer.
;;; 2. Redistributions in binary form must reproduce the above copyright
;;; notice, this list of conditions and the following disclaimer in the
;;; documentation and/or other materials provided with the distribution.
;;; 3. Neither the name of authors nor the names of its contributors
;;; may be used to endorse or promote products derived from this software
;;; without specific prior written permission.
;;;
;;; THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' AND
;;; ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
;;; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
;;; ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE
;;; FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
;;; DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
;;; OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
;;; HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
;;; LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
;;; OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
;;; SUCH DAMAGE.
;;;;
(require "util.scm")
(define uim-plugin-lib-load-path
(if (setugid?)
(list (string-append (sys-pkglibdir) "/plugin"))
(let ((home-dir (or (home-directory (user-name)) ""))
(ld-library-path (getenv "LD_LIBRARY_PATH")))
(filter string?
(append (list (getenv "LIBUIM_PLUGIN_LIB_DIR")
(if home-dir
(string-append home-dir "/.uim.d/plugin")
'())
(string-append (sys-pkglibdir) "/plugin"))
;; XXX
(if ld-library-path
(string-split ld-library-path ":")
'()))))))
(define uim-plugin-scm-load-path
(if (setugid?)
(list (sys-pkgdatadir))
(let ((home-dir (or (home-directory (user-name)) "")))
(filter string?
(list (getenv "LIBUIM_SCM_FILES")
(if home-dir
(string-append home-dir "/.uim.d/plugin")
'())
(sys-pkgdatadir))))))
(define plugin-alist ())
(define plugin-func-alist ())
(define-record 'plugin-entry
'((name "")
;;(desc "")
;;(author "")
;;(version #f)
(library #f)
(init-proc #f)
(quit-proc #f)))
(define plugin-list-append
(lambda (plugin-name library init quit)
(let ((entry (plugin-entry-new plugin-name library init quit)))
(set! plugin-alist
(append plugin-alist (list entry))))))
(define plugin-list-delete
(lambda (plugin-name)
(set! plugin-alist
(alist-delete plugin-name plugin-alist string=?))))
(define plugin-list-query
(lambda (plugin-name)
(assoc plugin-name plugin-alist)))
(define plugin-list-query-library
(lambda (plugin-name)
(let ((entry (plugin-list-query plugin-name)))
(and entry
(plugin-entry-library entry)))))
(define plugin-list-query-instance-init
(lambda (plugin-name)
(let ((entry (plugin-list-query plugin-name)))
(and entry
(plugin-entry-init-proc entry)))))
(define plugin-list-query-instance-quit
(lambda (plugin-name)
(let ((entry (plugin-list-query plugin-name)))
(and entry
(plugin-entry-quit-proc entry)))))
;; The name 'module' is adopted from a post from Hiroyuki. If you
;; feel bad about the meaning of 'module', post your opinion to
;; uim@fdo.
(define installed-im-module-list ())
(define currently-loading-module-name #f)
;;
;; TODO: write test for load-plugin
;; returns whether initialization is succeeded
(define require-module
(lambda (module-name)
(set! currently-loading-module-name module-name)
(let ((succeeded (or (load-plugin module-name)
(try-require (string-append module-name ".scm")))))
(set! currently-loading-module-name #f)
succeeded)))
;; TODO: write test
(define load-module-conf
(lambda ()
(let* ((home-dir (or (home-directory (user-name)) ""))
(user-module-dir (if home-dir
(string-append home-dir "/.uim.d/plugin/")
#f))
(conf-file "installed-modules.scm")
(user-conf-file (if user-module-dir
(string-append user-module-dir conf-file)
#f)))
(try-load conf-file)
(if (or
(setugid?)
(not user-conf-file))
#f
(if (not (getenv "LIBUIM_VANILLA"))
(let ((orig-module-list installed-im-module-list)
(orig-enabled-list enabled-im-list))
(if (try-load user-conf-file)
(begin
(set! installed-im-module-list
(append orig-module-list installed-im-module-list))
(set! enabled-im-list
(append orig-enabled-list enabled-im-list))))))))))
;; TODO: write test
(define load-enabled-modules
(lambda ()
(let* ((home-dir (or (home-directory (user-name)) ""))
(user-module-dir (if home-dir
(string-append home-dir "/.uim.d/plugin/")
#f))
(file "loader.scm")
(user-file (if user-module-dir
(string-append user-module-dir file)
#f)))
(and (try-load file)
(or (and (not (setugid?))
user-file
(try-load user-file))
#t)))))
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