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alert-20200303.2118.el
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alert-20200303.2118.el
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;;; alert.el --- Growl-style notification system for Emacs -*- lexical-binding: t; -*-
;; Copyright (C) 2011-2013 John Wiegley
;; Author: John Wiegley <[email protected]>
;; Created: 24 Aug 2011
;; Updated: 16 Mar 2015
;; Version: 1.2
;; Package-Version: 20200303.2118
;; Package-Commit: 7046393272686c7a1a9b3e7f7b1d825d2e5250a6
;; Package-Requires: ((gntp "0.1") (log4e "0.3.0") (cl-lib "0.5"))
;; Keywords: notification emacs message
;; X-URL: https://github.com/jwiegley/alert
;; 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 2, 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 GNU Emacs; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
;; Boston, MA 02111-1307, USA.
;;; Commentary:
;; Alert is a Growl-workalike for Emacs which uses a common notification
;; interface and multiple, selectable "styles", whose use is fully
;; customizable by the user.
;;
;; * For module writers
;;
;; Just use `alert' instead of `message' as follows:
;;
;; (require 'alert)
;;
;; ;; This is the most basic form usage
;; (alert "This is an alert")
;;
;; ;; You can adjust the severity for more important messages
;; (alert "This is an alert" :severity 'high)
;;
;; ;; Or decrease it for purely informative ones
;; (alert "This is an alert" :severity 'trivial)
;;
;; ;; Alerts can have optional titles. Otherwise, the title is the
;; ;; buffer-name of the (current-buffer) where the alert originated.
;; (alert "This is an alert" :title "My Alert")
;;
;; ;; Further, alerts can have categories. This allows users to
;; ;; selectively filter on them.
;; (alert "This is an alert" :title "My Alert" :category 'debug)
;;
;; * For users
;;
;; For the user, there are several variables to control when and how alerts
;; are presented. By default, they appear in the minibuffer much the same
;; as a normal Emacs message. But there are many more possibilities:
;;
;; `alert-fade-time'
;; Normally alerts disappear after this many seconds, if the style
;; supports it. The default is 5 seconds.
;;
;; `alert-default-style'
;; Pick the style to use if no other config rule matches. The
;; default is `message', but `growl' works well too.
;;
;; `alert-reveal-idle-time'
;; If a config rule choose to match on `idle', this is how many
;; seconds idle the user has to be. Defaults to 5 so that users
;; don't miss any alerts, but 120 is also good.
;;
;; `alert-persist-idle-time'
;; After this many idle seconds, alerts will become sticky, and not
;; fade away more. The default is 15 minutes.
;;
;; `alert-log-messages'
;; By default, all alerts are logged to *Alerts* (and to *Messages*,
;; if the `message' style is being used). Set to nil to disable.
;;
;; `alert-hide-all-notifications'
;; Want alerts off entirely? They still get logged, however, unless
;; you've turned that off too.
;;
;; `alert-user-configuration'
;; This variable lets you control exactly how and when a particular
;; alert, a class of alerts, or all alerts, get reported -- or if at
;; all. Use this to make some alerts use Growl, while others are
;; completely silent.
;;
;; * Programmatically adding rules
;;
;; Users can also programmatically add configuration rules, in addition to
;; customizing `alert-user-configuration'. Here is one that the author
;; currently uses with ERC, so that the fringe gets colored whenever people
;; chat on BitlBee:
;;
;; (alert-add-rule :status '(buried visible idle)
;; :severity '(moderate high urgent)
;; :mode 'erc-mode
;; :predicate
;; #'(lambda (info)
;; (string-match (concat "\\`[^&].*@BitlBee\\'")
;; (erc-format-target-and/or-network)))
;; :persistent
;; #'(lambda (info)
;; ;; If the buffer is buried, or the user has been
;; ;; idle for `alert-reveal-idle-time' seconds,
;; ;; make this alert persistent. Normally, alerts
;; ;; become persistent after
;; ;; `alert-persist-idle-time' seconds.
;; (memq (plist-get info :status) '(buried idle)))
;; :style 'fringe
;; :continue t)
;;
;; * Builtin alert styles
;;
;; There are several builtin styles, and it is trivial to create new ones.
;; The builtins are:
;;
;; fringe - Changes the current frame's fringe background color
;; mode-line - Changes the current frame's mode-line background color
;; gntp - Uses gntp, it requires gntp.el (see https://github.com/tekai/gntp.el)
;; growl - Uses Growl on OS X, if growlnotify is on the PATH
;; ignore - Ignores the alert entirely
;; libnotify - Uses libnotify if notify-send is on the PATH
;; log - Logs the alert text to *Alerts*, with a timestamp
;; message - Uses the Emacs `message' facility
;; momentary - Uses the Emacs `momentary-string-display' facility
;; notifications - Uses notifications library via D-Bus
;; notifier - Uses terminal-notifier on OS X, if it is on the PATH
;; osx-notifier - Native OSX notifier using AppleScript
;; toaster - Use the toast notification system
;; x11 - Changes the urgency property of the window in the X Window System
;;
;; * Defining new styles
;;
;; To create a new style, you need to at least write a "notifier", which is
;; a function that receives the details of the alert. These details are
;; given in a plist which uses various keyword to identify the parts of the
;; alert. Here is a prototypical style definition:
;;
;; (alert-define-style 'style-name :title "My Style's title"
;; :notifier
;; (lambda (info)
;; ;; The message text is :message
;; (plist-get info :message)
;; ;; The :title of the alert
;; (plist-get info :title)
;; ;; The :category of the alert
;; (plist-get info :category)
;; ;; The major-mode this alert relates to
;; (plist-get info :mode)
;; ;; The buffer the alert relates to
;; (plist-get info :buffer)
;; ;; Severity of the alert. It is one of:
;; ;; `urgent'
;; ;; `high'
;; ;; `moderate'
;; ;; `normal'
;; ;; `low'
;; ;; `trivial'
;; (plist-get info :severity)
;; ;; Whether this alert should persist, or fade away
;; (plist-get info :persistent)
;; ;; Data which was passed to `alert'. Can be
;; ;; anything.
;; (plist-get info :data))
;;
;; ;; Removers are optional. Their job is to remove
;; ;; the visual or auditory effect of the alert.
;; :remover
;; (lambda (info)
;; ;; It is the same property list that was passed to
;; ;; the notifier function.
;; ))
;;
;; You can test a specific style with something like this:
;;
;; (let ((alert-user-configuration '((((:severity high)) momentary nil))))
;; (alert "Same buffer momentary alert" :title "My Alert" :severity 'high)
;; (alert "This is a momentary alert in another visible buffer" :title "My Alert"
;; :severity 'high :buffer (other-buffer (current-buffer) t)))
;;; Code:
(require 'cl-lib)
(require 'gntp nil t)
(eval-when-compile
;; if not available, silence the byte compiler
(defvar gntp-server))
(declare-function gntp-notify "gntp")
(require 'notifications nil t)
(require 'log4e nil t)
;; shut up the byte compiler
(declare-function alert-gntp-notify "alert")
(declare-function alert-notifications-notify "alert")
(defgroup alert nil
"Notification system for Emacs similar to Growl"
:group 'emacs)
(defcustom alert-severity-faces
'((urgent . alert-urgent-face)
(high . alert-high-face)
(moderate . alert-moderate-face)
(normal . alert-normal-face)
(low . alert-low-face)
(trivial . alert-trivial-face))
"Faces associated by default with alert severities."
:type '(alist :key-type symbol :value-type color)
:group 'alert)
(defcustom alert-severity-colors
'((urgent . "red")
(high . "orange")
(moderate . "yellow")
(normal . "green")
(low . "blue")
(trivial . "purple"))
"Colors associated by default with alert severities.
This is used by styles external to Emacs that don't understand faces."
:type '(alist :key-type symbol :value-type color)
:group 'alert)
(defcustom alert-log-severity-functions
'((urgent . alert--log-fatal)
(high . alert--log-error)
(moderate . alert--log-warn)
(normal . alert--log-info)
(low . alert--log-debug)
(trivial . alert--log-trace))
"Log4e logging functions."
:type '(alist :key-type symbol :value-type color)
:group 'alert)
(defcustom alert-log-level
'normal
"Minimum level of messages to log."
:type 'symbol
:group 'alert)
(defcustom alert-reveal-idle-time 15
"If idle this many seconds, rules will match the `idle' property."
:type 'integer
:group 'alert)
(defcustom alert-persist-idle-time 900
"If idle this many seconds, all alerts become persistent.
This can be overridden with the Never Persist option (:never-persist)."
:type 'integer
:group 'alert)
(defcustom alert-fade-time 5
"If not idle, alerts disappear after this many seconds.
The amount of idle time is governed by `alert-persist-idle-time'."
:type 'integer
:group 'alert)
(defcustom alert-hide-all-notifications nil
"If non-nil, no alerts are ever shown to the user."
:type 'boolean
:group 'alert)
(defcustom alert-log-messages t
"If non-nil, all alerts are logged to the *Alerts* buffer."
:type 'boolean
:group 'alert)
(defcustom alert-default-icon
(concat data-directory
"images/icons/hicolor/scalable/apps/emacs.svg")
"Filename of default icon to show for libnotify-alerts."
:type 'string
:group 'alert)
(defvar alert-styles nil)
(defun alert-styles-radio-type (widget-name)
(append
(list widget-name :tag "Style")
(mapcar #'(lambda (style)
(list 'const
:tag (or (plist-get (cdr style) :title)
(symbol-name (car style)))
(car style)))
(setq alert-styles
(sort alert-styles
#'(lambda (l r)
(string< (symbol-name (car l))
(symbol-name (car r)))))))))
(defcustom alert-default-style 'message
"The style to use if no rules match in the current configuration.
If a configured rule does match an alert, this style is not used;
it is strictly a fallback."
:type (alert-styles-radio-type 'radio)
:group 'alert)
(defun alert-configuration-type ()
(list 'repeat
(list
'list :tag "Select style if alert matches selector"
'(repeat
:tag "Selector"
(choice
(cons :tag "Severity"
(const :format "" :severity)
(set (const :tag "Urgent" urgent)
(const :tag "High" high)
(const :tag "Moderate" moderate)
(const :tag "Normal" normal)
(const :tag "Low" low)
(const :tag "Trivial" trivial)))
(cons :tag "User Status"
(const :format "" :status)
(set (const :tag "Buffer not visible" buried)
(const :tag "Buffer visible" visible)
(const :tag "Buffer selected" selected)
(const :tag "Buffer selected, user idle" idle)))
(cons :tag "Major Mode"
(const :format "" :mode)
regexp)
(cons :tag "Category"
(const :format "" :category)
regexp)
(cons :tag "Title"
(const :format "" :title)
regexp)
(cons :tag "Message"
(const :format "" :message)
regexp)
(cons :tag "Predicate"
(const :format "" :predicate)
function)
(cons :tag "Icon"
(const :format "" :icon)
regexp)))
(alert-styles-radio-type 'choice)
'(set :tag "Options"
(cons :tag "Make alert persistent"
(const :format "" :persistent)
(choice :value t (const :tag "Yes" t)
(function :tag "Predicate")))
(cons :tag "Never persist"
(const :format "" :never-persist)
(choice :value t (const :tag "Yes" t)
(function :tag "Predicate")))
(cons :tag "Continue to next rule"
(const :format "" :continue)
(choice :value t (const :tag "Yes" t)
(function :tag "Predicate")))
;;(list :tag "Change Severity"
;; (radio :tag "From"
;; (const :tag "Urgent" urgent)
;; (const :tag "High" high)
;; (const :tag "Moderate" moderate)
;; (const :tag "Normal" normal)
;; (const :tag "Low" low)
;; (const :tag "Trivial" trivial))
;; (radio :tag "To"
;; (const :tag "Urgent" urgent)
;; (const :tag "High" high)
;; (const :tag "Moderate" moderate)
;; (const :tag "Normal" normal)
;; (const :tag "Low" low)
;; (const :tag "Trivial" trivial)))
))))
(defcustom alert-user-configuration nil
"Rules that determine how and when alerts get displayed."
:type (alert-configuration-type)
:group 'alert)
(defvar alert-internal-configuration nil
"Rules added by `alert-add-rule'.
For user customization, see `alert-user-configuration'.")
(defface alert-urgent-face
'((t (:foreground "Red" :bold t)))
"Urgent alert face."
:group 'alert)
(defface alert-high-face
'((t (:foreground "Dark Orange" :bold t)))
"High alert face."
:group 'alert)
(defface alert-moderate-face
'((t (:foreground "Gold" :bold t)))
"Moderate alert face."
:group 'alert)
(defface alert-normal-face
'((t))
"Normal alert face."
:group 'alert)
(defface alert-low-face
'((t (:foreground "Dark Blue")))
"Low alert face."
:group 'alert)
(defface alert-trivial-face
'((t (:foreground "Dark Violet")))
"Trivial alert face."
:group 'alert)
(defun alert-define-style (name &rest plist)
"Define a new style for notifying the user of alert messages.
To create a new style, you need to at least write a \"notifier\",
which is a function that receives the details of the alert.
These details are given in a plist which uses various keyword to
identify the parts of the alert. Here is a prototypical style
definition:
\(alert-define-style 'style-name :title \"My Style's title\"
:notifier
(lambda (info)
;; The message text is :message
(plist-get info :message)
;; The :title of the alert
(plist-get info :title)
;; The :category of the alert
(plist-get info :category)
;; The major-mode this alert relates to
(plist-get info :mode)
;; The buffer the alert relates to
(plist-get info :buffer)
;; Severity of the alert. It is one of:
;; `urgent'
;; `high'
;; `moderate'
;; `normal'
;; `low'
;; `trivial'
(plist-get info :severity)
;; Whether this alert should persist, or fade away
(plist-get info :persistent)
;; Data which was passed to `alert'. Can be
;; anything.
(plist-get info :data))
;; Removers are optional. Their job is to remove
;; the visual or auditory effect of the alert.
:remover
(lambda (info)
;; It is the same property list that was passed to
;; the notifier function.
))"
(add-to-list 'alert-styles (cons name plist))
(put 'alert-user-configuration 'custom-type (alert-configuration-type))
(put 'alert-define-style 'custom-type (alert-styles-radio-type 'radio)))
(alert-define-style 'ignore :title "Ignore Alert"
:notifier #'ignore
:remover #'ignore)
;;;###autoload
(cl-defun alert-add-rule (&key severity status mode category title
message predicate icon (style alert-default-style)
persistent continue never-persist append)
"Programmatically add an alert configuration rule.
Normally, users should custoimze `alert-user-configuration'.
This facility is for module writers and users that need to do
things the Lisp way.
Here is a rule the author currently uses with ERC, so that the
fringe gets colored whenever people chat on BitlBee:
\(alert-add-rule :status \\='(buried visible idle)
:severity \\='(moderate high urgent)
:mode \\='erc-mode
:predicate
#\\='(lambda (info)
(string-match (concat \"\\\\`[^&].*@BitlBee\\\\\\='\")
(erc-format-target-and/or-network)))
:persistent
#\\='(lambda (info)
;; If the buffer is buried, or the user has been
;; idle for `alert-reveal-idle-time' seconds,
;; make this alert persistent. Normally, alerts
;; become persistent after
;; `alert-persist-idle-time' seconds.
(memq (plist-get info :status) \\='(buried idle)))
:style \\='fringe
:continue t)"
(let ((rule (list (list t) style (list t))))
(if severity
(nconc (nth 0 rule)
(list (cons :severity
(if (listp severity)
severity
(list severity))))))
(if status
(nconc (nth 0 rule)
(list (cons :status
(if (listp status)
status
(list status))))))
(if mode
(nconc (nth 0 rule)
(list (cons :mode
(if (stringp mode)
mode
(concat "\\`" (symbol-name mode)
"\\'"))))))
(if category
(nconc (nth 0 rule) (list (cons :category category))))
(if title
(nconc (nth 0 rule) (list (cons :title title))))
(if message
(nconc (nth 0 rule) (list (cons :message message))))
(if predicate
(nconc (nth 0 rule) (list (cons :predicate predicate))))
(if icon
(nconc (nth 0 rule) (list (cons :icon icon))))
(setcar rule (cdr (nth 0 rule)))
(if persistent
(nconc (nth 2 rule) (list (cons :persistent persistent))))
(if never-persist
(nconc (nth 2 rule) (list (cons :never-persist never-persist))))
(if continue
(nconc (nth 2 rule) (list (cons :continue continue))))
(setcdr (cdr rule) (list (cdr (nth 2 rule))))
(if (null alert-internal-configuration)
(setq alert-internal-configuration (list rule))
(if append
(nconc alert-internal-configuration (list rule))
(setq alert-internal-configuration
(cons rule alert-internal-configuration))))
rule))
(alert-define-style 'ignore :title "Don't display alerts")
(defun alert-log-notify (info)
(let* ((mes (plist-get info :message))
(sev (plist-get info :severity))
(len (length mes))
(func (cdr (assoc sev alert-log-severity-functions))))
(if (not (featurep 'log4e))
(alert-legacy-log-notify mes sev len)
;; when we get here you better be using log4e or have your logging
;; functions defined
(unless (fboundp func)
(when (fboundp 'log4e:deflogger)
(log4e:deflogger "alert" "%t [%l] %m" "%H:%M:%S")
(when (functionp 'alert--log-set-level)
(alert--log-set-level alert-log-level)))
(alert--log-enable-logging))
(when (fboundp func)
(apply func (list mes))))))
(defun alert-legacy-log-notify (mes sev len)
(with-current-buffer
(get-buffer-create "*Alerts*")
(goto-char (point-max))
(insert (format-time-string "%H:%M %p - "))
(insert mes)
(set-text-properties (- (point) len) (point)
(list 'face (cdr (assq sev
alert-severity-faces))))
(insert ?\n)))
(defun alert-log-clear (info)
(if (functionp 'alert--log-clear-log)
(alert--log-clear-log)
(if (bufferp "*Alerts*")
(with-current-buffer
(get-buffer-create "*Alerts*")
(goto-char (point-max))
(insert (format-time-string "%H:%M %p - ")
"Clear: " (plist-get info :message)
?\n)))))
(alert-define-style 'log :title "Log to *Alerts* buffer"
:notifier #'alert-log-notify
;;:remover #'alert-log-clear
)
(defun alert-message-notify (info)
;; the message text might contain `%' and we don't want them to be
;; interpreted as format specifiers:
(message "%s" (plist-get info :message))
;;(if (memq (plist-get info :severity) '(high urgency))
;; (ding))
)
(defun alert-message-remove (_info)
(message ""))
(alert-define-style 'message :title "Display message in minibuffer"
:notifier #'alert-message-notify
:remover #'alert-message-remove)
(defun alert-momentary-notify (info)
(save-excursion
(with-current-buffer (or (plist-get info :buffer) (current-buffer))
(momentary-string-display
(format "%s: %s (%s/%s/%s)"
(or (plist-get info :title) "untitled")
(or (plist-get info :message) "no message")
(or (plist-get info :severity) "no priority")
(or (plist-get info :category) "no category")
(or (plist-get info :mode) "no mode"))
(progn
(beginning-of-line)
(point))))))
(alert-define-style 'momentary :title "Display message momentarily in buffer"
:notifier #'alert-momentary-notify
;; explicitly, we don't need a remover
:remover #'ignore)
(copy-face 'fringe 'alert-saved-fringe-face)
(defun alert-fringe-notify (info)
(set-face-background 'fringe (cdr (assq (plist-get info :severity)
alert-severity-colors))))
(defun alert-fringe-restore (_info)
(copy-face 'alert-saved-fringe-face 'fringe))
(alert-define-style 'fringe :title "Change the fringe color"
:notifier #'alert-fringe-notify
:remover #'alert-fringe-restore)
(defun alert-mode-line-notify (info)
(copy-face 'mode-line 'alert-saved-mode-line-face)
(set-face-background 'mode-line (cdr (assq (plist-get info :severity)
alert-severity-colors)))
(set-face-foreground 'mode-line "white"))
(defun alert-mode-line-restore (_info)
(copy-face 'alert-saved-mode-line-face 'mode-line))
(alert-define-style 'mode-line :title "Change the mode-line color"
:notifier #'alert-mode-line-notify
:remover #'alert-mode-line-restore)
(defcustom alert-growl-command (executable-find "growlnotify")
"Path to the growlnotify command.
This is found in the Growl Extras: http://growl.info/extras.php."
:type 'file
:group 'alert)
(defcustom alert-growl-priorities
'((urgent . 2)
(high . 2)
(moderate . 1)
(normal . 0)
(low . -1)
(trivial . -2))
"A mapping of alert severities onto Growl priority values."
:type '(alist :key-type symbol :value-type integer)
:group 'alert)
(defsubst alert-encode-string (str)
(encode-coding-string str (keyboard-coding-system)))
(defun alert-growl-notify (info)
(if alert-growl-command
(let ((args
(list "--appIcon" "Emacs"
"--name" "Emacs"
"--title" (alert-encode-string (plist-get info :title))
"--message" (alert-encode-string (plist-get info :message))
"--priority" (number-to-string
(cdr (assq (plist-get info :severity)
alert-growl-priorities))))))
(if (and (plist-get info :persistent)
(not (plist-get info :never-persist)))
(nconc args (list "--sticky")))
(apply #'call-process alert-growl-command nil nil nil args))
(alert-message-notify info)))
(alert-define-style 'growl :title "Notify using Growl"
:notifier #'alert-growl-notify)
(defcustom alert-libnotify-command (executable-find "notify-send")
"Path to the notify-send command.
This is found in the libnotify-bin package in Debian based
systems."
:type 'file
:group 'alert)
(defcustom alert-libnotify-additional-args
nil
"Additional args to pass to notify-send.
Must be a list of strings."
:type '(repeat string)
:group 'alert)
(defcustom alert-libnotify-priorities
'((urgent . critical)
(high . critical)
(moderate . normal)
(normal . normal)
(low . low)
(trivial . low))
"A mapping of alert severities onto libnotify priority values."
:type '(alist :key-type symbol :value-type symbol)
:group 'alert)
(defun alert-libnotify-notify (info)
"Send INFO using notify-send.
Handles :ICON, :CATEGORY, :SEVERITY, :PERSISTENT, :NEVER-PERSIST, :TITLE
and :MESSAGE keywords from the INFO plist. :CATEGORY can be
passed as a single symbol, a string or a list of symbols or
strings."
(if alert-libnotify-command
(let* ((args
(append
(list "--icon" (or (plist-get info :icon)
alert-default-icon)
"--app-name" "Emacs"
"--urgency" (let ((urgency (cdr (assq
(plist-get info :severity)
alert-libnotify-priorities))))
(if urgency
(symbol-name urgency)
"normal")))
(copy-tree alert-libnotify-additional-args)))
(category (plist-get info :category)))
(nconc args
(list "--expire-time"
(number-to-string
(* 1000 ; notify-send takes msecs
(if (and (plist-get info :persistent)
(not (plist-get info :never-persist)))
0 ; 0 indicates persistence
alert-fade-time)))))
(when category
(nconc args
(list "--category"
(cond ((symbolp category)
(symbol-name category))
((stringp category) category)
((listp category)
(mapconcat (if (symbolp (car category))
#'symbol-name
#'identity)
category ","))))))
(nconc args (list
(alert-encode-string (plist-get info :title))
(alert-encode-string (plist-get info :message))))
(apply #'call-process alert-libnotify-command nil
(list (get-buffer-create " *libnotify output*") t) nil args))
(alert-message-notify info)))
(alert-define-style 'libnotify :title "Notify using libnotify"
:notifier #'alert-libnotify-notify)
(defcustom alert-gntp-icon
"http://cvs.savannah.gnu.org/viewvc/*checkout*/emacs/emacs/etc/images/icons/hicolor/48x48/apps/emacs.png"
"Icon file using gntp."
:type 'string
:group 'alert)
(when (featurep 'gntp)
(defun alert-gntp-notify (info)
(gntp-notify 'alert
(alert-encode-string (plist-get info :title))
(alert-encode-string (plist-get info :message))
gntp-server nil
(number-to-string
(cdr (assq (plist-get info :severity)
alert-growl-priorities)))
(if (eq (plist-get info :icon) nil)
alert-gntp-icon
(plist-get info :icon)))
(alert-message-notify info))
(alert-define-style 'gntp :title "Notify using gntp"
:notifier #'alert-gntp-notify))
(defcustom alert-notifications-priorities
'((urgent . critical)
(high . critical)
(moderate . normal)
(normal . normal)
(low . low)
(trivial . low))
"A mapping of alert severities onto Growl priority values."
:type '(alist :key-type symbol :value-type symbol)
:group 'alert)
(defvar alert-notifications-ids (make-hash-table :test #'equal)
"Internal store of notification ids returned by the `notifications' backend.
Used for replacing notifications with the same id. The key is
the value of the :id keyword to `alert'. An id is only stored
here if there `alert' was called with an :id keyword and handled
by the `notifications' style.")
(when (featurep 'notifications)
(defun alert-notifications-notify (info)
"Show the alert defined by INFO with `notifications-notify'."
(let ((id (notifications-notify :title (plist-get info :title)
:body (plist-get info :message)
:app-icon (plist-get info :icon)
:timeout (if (plist-get info :persistent) 0 -1)
:replaces-id (gethash (plist-get info :id) alert-notifications-ids)
:urgency (cdr (assq (plist-get info :severity)
alert-notifications-priorities))
:actions '("default" "Open corresponding buffer")
:on-action (lambda (id action)
(when (string= action "default")
(switch-to-buffer (plist-get info :buffer)))))))
(when (plist-get info :id)
(puthash (plist-get info :id) id alert-notifications-ids)))
(alert-message-notify info))
(defun alert-notifications-remove (info)
"Remove the `notifications-notify' message based on INFO :id."
(let ((id (and (plist-get info :id)
(gethash (plist-get info :id) alert-notifications-ids))))
(when id
(notifications-close-notification id)
(remhash (plist-get info :id) alert-notifications-ids))))
(alert-define-style 'notifications :title "Notify using notifications"
:notifier #'alert-notifications-notify))
(defcustom alert-notifier-command (executable-find "terminal-notifier")
"Path to the terminal-notifier command.
From https://github.com/julienXX/terminal-notifier."
:type 'file
:group 'alert)
(defcustom alert-notifier-default-icon
(concat data-directory
"images/icons/hicolor/128x128/apps/emacs.png")
"Filename of default icon to show for terminal-notifier alerts."
:type 'string
:group 'alert)
(defun alert-notifier-notify (info)
(if alert-notifier-command
(let ((args
(list "-title" (alert-encode-string (plist-get info :title))
"-appIcon" (or (plist-get info :icon) alert-notifier-default-icon)
"-message" (alert-encode-string (plist-get info :message)))))
(apply #'call-process alert-notifier-command nil nil nil args))
(alert-message-notify info)))
(alert-define-style 'notifier :title "Notify using terminal-notifier"
:notifier #'alert-notifier-notify)
(defun alert-osx-notifier-notify (info)
(apply #'call-process "osascript" nil nil nil "-e"
(list (format "display notification %S with title %S"
(alert-encode-string (plist-get info :message))
(alert-encode-string (plist-get info :title)))))
(alert-message-notify info))
(when (fboundp 'mac-do-applescript)
;; Use built-in AppleScript support when possible.
(defun alert-osx-notifier-notify (info)
(mac-do-applescript (format "display notification %S with title %S"
(alert-encode-string (plist-get info :message))
(alert-encode-string (plist-get info :title))))
(alert-message-notify info)))
(alert-define-style 'osx-notifier :title "Notify using native OSX notification" :notifier #'alert-osx-notifier-notify)
(defun alert-frame-notify (info)
(let ((buf (plist-get info :buffer)))
(if (eq (alert-buffer-status buf) 'buried)
(let ((current-frame (selected-frame)))
(with-selected-frame
(make-frame '((width . 80)
(height . 20)
(top . -1)
(left . 0)
(left-fringe . 0)
(right-fringe . 0)
(tool-bar-lines . nil)
(menu-bar-lines . nil)
(vertical-scroll-bars . nil)
(unsplittable . t)
(has-modeline-p . nil)
(minibuffer . nil)))
(switch-to-buffer buf)
;;(set (make-local-variable 'mode-line-format) nil)
(nconc info (list :frame (selected-frame))))
(select-frame current-frame)))))
(defun alert-frame-remove (info)
(unless (eq this-command 'handle-switch-frame)
(delete-frame (plist-get info :frame) t)))
;; This code was kindly borrowed from Arne Babenhauserheide:
;; http://www.draketo.de/proj/babcore/#sec-3-14-2
(defun x-urgency-hint (frame arg &optional source)
"Set the x-urgency hint for FRAME to ARG.
- If arg is nil, unset the urgency.
- If arg is any other value, set the urgency.
If you unset the urgency, you still have to visit the frame to make the urgency
setting disappear (at least in KDE)."
(let* ((wm-hints (append (x-window-property
"WM_HINTS" frame "WM_HINTS"
source nil t) nil))
(flags (car wm-hints)))
(setcar wm-hints
(if arg
(logior flags #x00000100)
(logand flags #x1ffffeff)))
(x-change-window-property "WM_HINTS" wm-hints frame "WM_HINTS" 32 t)))
(defun x-urgent (&optional arg)
"Mark the current Emacs frame as requiring urgent attention.
With non-nil ARG, remove the urgency flag (which might or might
not change display, depending on the window manager)."
(interactive "P")
(let ((frame (car (car (cdr (current-frame-configuration))))))
(x-urgency-hint frame (not arg))))
(defun alert-x11-notify (_info)
"Call `x-urgent'."
(x-urgent))
(alert-define-style 'x11 :title "Set the X11 window property"
:notifier #'alert-x11-notify)
(defcustom alert-toaster-default-icon
(let ((exec-bin (executable-find "emacs.exe")))
(cond (exec-bin
(concat (file-name-directory exec-bin) "../share/icons/hicolor/128x128/apps/emacs.png"))
(t nil)))
"Icon file using toaster."
:type 'string
:group 'alert
)
(defcustom alert-toaster-command (executable-find "toast")
"Path to the toast command.
This is found at https://github.com/nels-o/toaster."
:type 'file
:group 'alert
)
(defun alert-toaster-notify (info)
(if alert-toaster-command
(let ((args (list
"-t" (alert-encode-string (plist-get info :title))
"-m" (alert-encode-string (plist-get info :message))
"-p" (expand-file-name (or (plist-get info :icon) alert-toaster-default-icon))
)))
(apply #'call-process alert-toaster-command nil nil nil args))
(alert-message-notify info)))
(alert-define-style 'toaster :title "Notify using Toaster"
:notifier #'alert-toaster-notify)
;; jww (2011-08-25): Not quite working yet
;;(alert-define-style 'frame :title "Popup buffer in a frame"
;; :notifier #'alert-frame-notify
;; :remover #'alert-frame-remove)
(defun alert-buffer-status (&optional buffer)
(with-current-buffer (or buffer (current-buffer))
(let ((wind (get-buffer-window)))
(if wind
(if (eq wind (selected-window))
(if (and (current-idle-time)
(> (float-time (current-idle-time))
alert-reveal-idle-time))
'idle
'selected)
'visible)
'buried))))
(defvar alert-active-alerts nil)
(defun alert-remove-when-active (remover info)
(let ((idle-time (and (current-idle-time)
(float-time (current-idle-time)))))
(cond
((and idle-time (> idle-time alert-persist-idle-time)))