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;;; The Zeitgeist Emacs Script -- integrates Emacs with Zeitgeist.
;;; Copyright (C) 2010, Patrick M. Niedzielski <PatrickNiedzielski@gmail.com>
;;; Copyright (C) 2011, Tassilo Horn <tassilo@member.fsf.org>
;;; Copyright (C) 2012, Jo Lund Steffensen <jonlst@gmail.com>
;;;
;;; This program 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 program 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/>.
;;;
;;; For more information about the Zeitgeist Project, see
;;; <http://zeitgeist-project.com/>.
;;* Code
(require 'cl)
(require 'dbus)
(defvar zeitgeist-emacs-application "application://emacs23.desktop")
(defvar zeitgeist-ignore-files-re nil)
(defvar zeitgeist-prevent-send nil)
;;** General Functions
(defun zeitgeist-call (method &rest args)
"Call the zeitgeist method METHOD with ARGS over dbus"
(condition-case err
(apply 'dbus-call-method
:session ; use the session (not system) bus
"org.gnome.zeitgeist.Engine" ; service name
"/org/gnome/zeitgeist/log/activity" ; path name
"org.gnome.zeitgeist.Log" ; interface name
method args)
(dbus-error (message(format "zeitgeist-call %s failed due to D-Bus error %s" method err)))))
(defun zeitgeist-event-timestamp ()
"Get the timestamp in zeitgeist format."
(let* ((now-time (current-time))
(hi (car now-time))
(lo (car (cdr now-time)))
(msecs (car (cdr (cdr now-time))))) ; This is *micro*seconds.
(substring (number-to-string
(+ (/ msecs 1000)
(* (+ lo (* hi 65536.0))
1000)))
0 -2))) ; Convert system time to milliseconds.
(defun zeitgeist-get-mime-type ()
"Get the mime type from the extension."
(let ((ext (file-name-extension buffer-file-name)))
;; Maybe use file mode later...
(cond ((string= "el" ext) "text/x-script.elisp")
((string= "cpp" ext) "text/x-c++src")
((string= "C" ext) "text/x-c++src")
((string= "c++" ext) "text/x-c++src")
((string= "cxx" ext) "text/x-c++src")
((string= "cc" ext) "text/x-c++src")
((string= "hpp" ext) "text/x-c++hdr")
((string= "h++" ext) "text/x-c++hdr")
((string= "hxx" ext) "text/x-c++hdr")
((string= "hh" ext) "text/x-c++hdr")
((string= "csv" ext) "text/comma-separated-values")
((string= "h" ext) "text/x-chdr")
((string= "c" ext) "text/x-csrc")
((string= "java" ext) "text/x-java")
((string= "p" ext) "text/x-pascal")
((string= "pas" ext) "text/x-pascal")
((string= "tcl" ext) "text/x-tcl")
((string= "tk" ext) "text/x-tcl")
((string= "tex" ext) "text/x-tex")
((string= "sty" ext) "text/x-tex")
((string= "cls" ext) "text/x-tex")
((string= "html" ext) "text/html")
((string= "htm" ext) "text/html")
((string= "latex" ext) "application/x-latex")
((string= "ltx" ext) "application/x-latex")
((string= "sh" ext) "application/x-sh")
((string= "pl" ext) "application/x-perl")
((string= "pm" ext) "application/x-perl")
((string= "texinfo" ext) "application/x-texinfo")
((string= "texi" ext) "application/x-texinfo")
((string= "t" ext) "application/x-troff")
((string= "tr" ext) "application/x-troff")
((string= "roff" ext) "application/x-troff")
((string= "xml" ext) "text/xml")
((string= "xsd" ext) "text/xml")
((string= "xslt" ext) "application/xslt+xml")
((string= "xsl" ext) "application/xslt+xml")
((string= "txt" ext) "text/plain")
(t "text/plain"))))
(defun zeitgeist-event-interpretation (event)
"Get the Event Interpretation of EVENT."
(case event
(zeitgeist-open-file-event
"http://www.zeitgeist-project.com/ontologies/2010/01/27/zg#AccessEvent")
(zeitgeist-close-file-event
"http://www.zeitgeist-project.com/ontologies/2010/01/27/zg#LeaveEvent")
(zeitgeist-create-file-event
"http://www.zeitgeist-project.com/ontologies/2010/01/27/zg#CreateEvent")
(zeitgeist-modify-file-event
"http://www.zeitgeist-project.com/ontologies/2010/01/27/zg#ModifyEvent")
(t (error "Unknown event %s" event))))
(defun zeitgeist-create-event (event-interpr uri subject-interpr subject-manifest
origin mimetype text storage
&optional payload)
"Create an event according to the InsertEvents signature."
(list
;; Signature: asaasay
(list :struct
;; Event metadata (as = array of strings)
(list
"" ;; ID, must not be set by clients!
(zeitgeist-event-timestamp) ;; Timpstamp
event-interpr ;; Event Interpretation (what happened?)
;; Manifestation
"http://www.zeitgeist-project.com/ontologies/2010/01/27/zg#UserActivity"
zeitgeist-emacs-application ;; Actor (the application, aka emacs)
)
;; List of subjects (aas)
(list
(list
uri ;; The URI of the subject
subject-interpr ;; Interpretation (Is the subject a file, a mail, a video?)
subject-manifest ;; Manifestiation (Is the subject a local file, a web page?)
origin ;; Origin
mimetype ;; Mimetype
text ;; Subject text
storage ;; Storage
))
;; The payload (ay = array of bytes)
(or payload '(:array :byte 0)))))
(defun zeitgeist-send (event &rest props)
"Send zeitgeist the EVENT with PROPS."
(let ((event-interpretation (zeitgeist-event-interpretation event)))
(condition-case err
(case event
;; File handling events
((zeitgeist-open-file-event
zeitgeist-close-file-event
zeitgeist-create-file-event
zeitgeist-modify-file-event)
(unless (or zeitgeist-prevent-send
(some (lambda (re)
(string-match re (plist-get props :file)))
zeitgeist-ignore-files-re))
(zeitgeist-call
"InsertEvents"
(zeitgeist-create-event
event-interpretation
(concat "file://" (plist-get props :file))
"http://www.semanticdesktop.org/ontologies/2007/03/22/nfo#Document"
"http://www.semanticdesktop.org/ontologies/nfo#FileDataObject"
(concat "file://" (file-name-directory (plist-get props :file)))
(zeitgeist-get-mime-type)
(file-name-nondirectory
(file-name-sans-versions (plist-get props :file)))
""))
(message "zeitgeist event: %s" (file-name-nondirectory
(file-name-sans-versions (plist-get props :file))))))
;; Email events
((zeitgeist-mail-read-event
zeitgeist-mail-sent-event)
;; TODO: Implement me!
))
;; Ouch, something failed when trying to communicate with zeitgeist!
(error (message "ERROR (ZEITGEIST): %s" (prin1-to-string err))))))
;;** Usual File Reading/Editing
(defun zeitgeist-open-file ()
"Tell zeitgeist we opened a file!"
(if (eq nil (buffer-file-name))
(message "You are not on a file.")
(zeitgeist-send 'zeitgeist-open-file-event
:file buffer-file-name)))
(defun zeitgeist-close-file ()
"Tell zeitgeist we closed a file!"
(when buffer-file-name
(zeitgeist-send 'zeitgeist-close-file-event
:file buffer-file-name)))
(defun zeitgeist-create-file ()
"Tell zeitgeist we created a file!"
(zeitgeist-send 'zeitgeist-create-file-event
:file buffer-file-name))
(defun zeitgeist-modify-file ()
"Tell zeitgeist we modified a file!"
(zeitgeist-send 'zeitgeist-modify-file-event
:file buffer-file-name))
(defun zeitgeist-find-file-hook ()
"Call zeitgeist-open-file if the file exists."
(when (file-exists-p buffer-file-name)
(zeitgeist-open-file)))
(defun zeitgeist-kill-buffer-hook ()
"Call zeitgeist-close-file if the file exists."
(if (and (not (eq nil (buffer-file-name)))
(file-exists-p (buffer-file-name)))
(zeitgeist-close-file)))
(defun zeitgeist-kill-emacs-hook ()
"Call zeitgeist-close-file on all files that exist."
(mapc '(lambda (buffer)
(set-buffer buffer)
(zeitgeist-close-file))
(buffer-list)))
(defun zeitgeist-before-save-hook ()
"Call zeitgeist-modify-file or zeitgeist-create-file."
(if (and (not (eq nil (buffer-file-name)))
(file-exists-p (buffer-file-name)))
(zeitgeist-modify-file)
(zeitgeist-create-file)))
(add-hook 'find-file-hook 'zeitgeist-find-file-hook)
(add-hook 'kill-buffer-hook 'zeitgeist-kill-buffer-hook)
(add-hook 'kill-emacs-hook 'zeitgeist-kill-emacs-hook)
(add-hook 'before-save-hook 'zeitgeist-before-save-hook)
;;** Record Reading/Writing Mail With Gnus
;; Hook run when mail is marked read: gnus-mark-article-hook
;(defun zeitgeist-gnus-message-read ())
;; Hook run when a message is sent off: message-sent-hook
;;* The End
(provide 'zeitgeist)
;;; zeitgeist.el ends here
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