1 COPYING

Copyright (C) 2021-2022 Free Software Foundation, Inc.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, with the Front-Cover Texts being “A GNU Manual,” and with the Back-Cover Texts as in (a) below. A copy of the license is included in the section entitled “GNU Free Documentation License.”

(a) The FSF’s Back-Cover Text is: “You have the freedom to copy and modify this GNU manual.”

2 Overview

TMR is an Emacs package that provides facilities for setting timers using a convenient notation. The first point of entry is the tmr command. It prompts for a unit of time, which is represented as a string that consists of a number and, optionally, a single character suffix which specifies the unit of time. Without a suffix, the number is interpreted as a count in minutes. Valid input formats:

The input can be a floating point:

The input can also be an absolute time, such as ‘16:00’ or ‘16:00:30’. It sets a timer from present time until the one specified.

If tmr is called with an optional prefix argument (‘C-u’ with default key bindings), it asks for a description to be associated with the given timer.

An alternative to the tmr command is tmr-with-description. The difference between the two is that the latter always prompts for a description.

The command tmr-edit-description can change the description a given timer object.

The user option tmr-descriptions-list defines the completion candidates that are shown at the description prompt. Its value can be either a list of strings or the symbol of a variable that holds a list of strings. The default value of tmr-description-history, is the name of a variable that contains input provided by the user at the relevant prompt of the tmr and tmr-with-description commands.

When the timer is set, a message is sent to the echo area recording the current time and the point in the future when the timer elapses. Echo area messages can be reviewed with the view-echo-area-messages which is bound to ‘C-h e’ by default. To check all timers, use the command tmr-tabulated-view, which has more features than the generic ‘*Messages*’ buffer (Grid view).

The tmr-cancel command cancels running timers without erasesing them from the list of created timer objects. Timers at the completion prompt are described by the exact time they were set and the input that was used to create them, including the optional description that tmr and tmr-with-description accept.

The tmr-remove command is like tmr-cancel, except it is not limited to active timers: it can target elapsed ones as well.

The tmr-clone command directly copies the duration and optional description of a timer into a new one. With an optional prefix argument (‘C-u’ by default), this command prompts for a duration. If a double prefix argument is supplied (‘C-u C-u’), the command asks for a duration and then a description. The default values of such prompts as those of the original timer.

The command tmr-reschedule changes the duration of the given timer to a new one provided at the prompt. In practice this is a shortcut to (i) cloning the timer, (ii) prompting for duration, and (iii) cancelling the original timer.

The tmr-remove-finished command deletes all elapsed timers from the list of timers. This means that they can no longer be cloned.

By default, TMR uses minibuffer completion to pick a timer object in operations such as cloning and cancelling. If the user option tmr-confirm-single-timer is set nil, TMR will not use completion when there is only one timer available: it will perform the specified command outright.

Timers have hooks associated with their creation, cancellation, and completion (Hooks). TMR can also integrate with the desktop environment to send notifications (Sound and desktop notifications).

TMR does not specify any global key bindings. The user must configure their own (Sample configuration).

• Grid view
• Hooks
• Sound and desktop notifications
• Minibuffer histories

Start      End        Remaining  Description
10:11:49   10:11:54   ✔
10:11:36   10:31:36   19m 35s
10:11:32   10:26:32   14m 31s    Yet another test
10:11:16   10:21:16   9m 14s     Testing how it works

(require 'savehist)
(setq savehist-file (locate-user-emacs-file "savehist"))
(setq history-length 10000)
(setq history-delete-duplicates t)
(setq savehist-save-minibuffer-history t)
(add-hook 'after-init-hook #'savehist-mode)

3 Installation

• GNU ELPA package
• Manual installation

M-x package-refresh-contents
M-x package-install

cd ~/.emacs.d

# Create a directory for manually-installed packages
mkdir manual-packages

# Go to the new directory
cd manual-packages

# Clone this repo, naming it "tmr"
git clone https://git.sr.ht/~protesilaos/tmr tmr

;; Make Elisp files in that directory available to the user.
(add-to-list 'load-path "~/.emacs.d/manual-packages/tmr")

4 Sample configuration

;; Load the `tmr' library
(require 'tmr)

;; set to nil to disable the sound
(setq tmr-sound-file "/usr/share/sounds/freedesktop/stereo/alarm-clock-elapsed.oga")

(setq tmr-notification-urgency 'normal)

;; Read the `tmr-descriptions-list' doc string
(setq tmr-descriptions-list 'tmr-description-history)

;; OPTIONALLY set global key bindings:
(let ((map global-map))
  (define-key map (kbd "C-c t t") #'tmr)
  (define-key map (kbd "C-c t T") #'tmr-with-description)
  (define-key map (kbd "C-c t l") #'tmr-tabulated-view) ; "list timers" mnemonic
  (define-key map (kbd "C-c t c") #'tmr-clone)
  (define-key map (kbd "C-c t k") #'tmr-cancel)
  (define-key map (kbd "C-c t s") #'tmr-reschedule)
  (define-key map (kbd "C-c t e") #'tmr-edit-description)
  (define-key map (kbd "C-c t r") #'tmr-remove)
  (define-key map (kbd "C-c t R") #'tmr-remove-finished))

5 Integration with Embark

The ‘embark’ package provides standards-compliant infrastructure to run context-dependent actions on all sorts of targets (symbol at point, current completion candidate, etc.). TMR is set up to make its timer objects recognisable by Embark. All the user needs is something like the following glue code:

(defvar tmr-action-map
  (let ((map (make-sparse-keymap)))
    (define-key map "k" #'tmr-remove)
    (define-key map "r" #'tmr-remove)
    (define-key map "R" #'tmr-remove-finished)
    (define-key map "c" #'tmr-clone)
    (define-key map "e" #'tmr-edit-description)
    (define-key map "s" #'tmr-reschedule)
    map))

(with-eval-after-load 'embark
  (add-to-list 'embark-keymap-alist '(tmr-timer . tmr-action-map))
  (cl-loop
   for cmd the key-bindings of tmr-action-map
   if (commandp cmd) do
   (add-to-list 'embark-post-action-hooks (list cmd 'embark--restart))))

6 Acknowledgements

TMR is meant to be a collective effort. Every bit of help matters.

Authors

Protesilaos Stavrou (maintainer), Damien Cassou, Daniel Mendler.

Contributions to the code or manual

Christian Tietze, Nathan R. DeGruchy.

7 GNU Free Documentation License

Copyright © 2000, 2001, 2002, 2007, 2008 Free Software Foundation, Inc.
https://fsf.org/

Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.

0. PREAMBLE

   The purpose of this License is to make a manual, textbook, or other functional and useful document free in the sense of freedom: to assure everyone the effective freedom to copy and redistribute it, with or without modifying it, either commercially or noncommercially. Secondarily, this License preserves for the author and publisher a way to get credit for their work, while not being considered responsible for modifications made by others.

   This License is a kind of “copyleft”, which means that derivative works of the document must themselves be free in the same sense. It complements the GNU General Public License, which is a copyleft license designed for free software.

   We have designed this License in order to use it for manuals for free software, because free software needs free documentation: a free program should come with manuals providing the same freedoms that the software does. But this License is not limited to software manuals; it can be used for any textual work, regardless of subject matter or whether it is published as a printed book. We recommend this License principally for works whose purpose is instruction or reference.

1. APPLICABILITY AND DEFINITIONS

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2. VERBATIM COPYING

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   It is requested, but not required, that you contact the authors of the Document well before redistributing any large number of copies, to give them a chance to provide you with an updated version of the Document.

4. MODIFICATIONS

   You may copy and distribute a Modified Version of the Document under the conditions of sections 2 and 3 above, provided that you release the Modified Version under precisely this License, with the Modified Version filling the role of the Document, thus licensing distribution and modification of the Modified Version to whoever possesses a copy of it. In addition, you must do these things in the Modified Version:

   1. Use in the Title Page (and on the covers, if any) a title distinct from that of the Document, and from those of previous versions (which should, if there were any, be listed in the History section of the Document). You may use the same title as a previous version if the original publisher of that version gives permission.
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   8. Include an unaltered copy of this License.
   9. Preserve the section Entitled “History”, Preserve its Title, and add to it an item stating at least the title, year, new authors, and publisher of the Modified Version as given on the Title Page. If there is no section Entitled “History” in the Document, create one stating the title, year, authors, and publisher of the Document as given on its Title Page, then add an item describing the Modified Version as stated in the previous sentence.
   10. Preserve the network location, if any, given in the Document for public access to a Transparent copy of the Document, and likewise the network locations given in the Document for previous versions it was based on. These may be placed in the “History” section. You may omit a network location for a work that was published at least four years before the Document itself, or if the original publisher of the version it refers to gives permission.
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   13. Delete any section Entitled “Endorsements”. Such a section may not be included in the Modified Version.
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   You may add a section Entitled “Endorsements”, provided it contains nothing but endorsements of your Modified Version by various parties—for example, statements of peer review or that the text has been approved by an organization as the authoritative definition of a standard.

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6. COLLECTIONS OF DOCUMENTS

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   A compilation of the Document or its derivatives with other separate and independent documents or works, in or on a volume of a storage or distribution medium, is called an “aggregate” if the copyright resulting from the compilation is not used to limit the legal rights of the compilation’s users beyond what the individual works permit. When the Document is included in an aggregate, this License does not apply to the other works in the aggregate which are not themselves derivative works of the Document.

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8. TRANSLATION

   Translation is considered a kind of modification, so you may distribute translations of the Document under the terms of section 4. Replacing Invariant Sections with translations requires special permission from their copyright holders, but you may include translations of some or all Invariant Sections in addition to the original versions of these Invariant Sections. You may include a translation of this License, and all the license notices in the Document, and any Warranty Disclaimers, provided that you also include the original English version of this License and the original versions of those notices and disclaimers. In case of a disagreement between the translation and the original version of this License or a notice or disclaimer, the original version will prevail.

   If a section in the Document is Entitled “Acknowledgements”, “Dedications”, or “History”, the requirement (section 4) to Preserve its Title (section 1) will typically require changing the actual title.

9. TERMINATION

   You may not copy, modify, sublicense, or distribute the Document except as expressly provided under this License. Any attempt otherwise to copy, modify, sublicense, or distribute it is void, and will automatically terminate your rights under this License.

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10. FUTURE REVISIONS OF THIS LICENSE

    The Free Software Foundation may publish new, revised versions of the GNU Free Documentation License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. See https://www.gnu.org/licenses/.

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11. RELICENSING

    “Massive Multiauthor Collaboration Site” (or “MMC Site”) means any World Wide Web server that publishes copyrightable works and also provides prominent facilities for anybody to edit those works. A public wiki that anybody can edit is an example of such a server. A “Massive Multiauthor Collaboration” (or “MMC”) contained in the site means any set of copyrightable works thus published on the MMC site.

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    The operator of an MMC Site may republish an MMC contained in the site under CC-BY-SA on the same site at any time before August 1, 2009, provided the MMC is eligible for relicensing.

ADDENDUM: How to use this License for your documents

To use this License in a document you have written, include a copy of the License in the document and put the following copyright and license notices just after the title page:

  Copyright (C)  year  your name.
  Permission is granted to copy, distribute and/or modify this document
  under the terms of the GNU Free Documentation License, Version 1.3
  or any later version published by the Free Software Foundation;
  with no Invariant Sections, no Front-Cover Texts, and no Back-Cover
  Texts.  A copy of the license is included in the section entitled ``GNU
  Free Documentation License''.

If you have Invariant Sections, Front-Cover Texts and Back-Cover Texts, replace the “with…Texts.” line with this:

    with the Invariant Sections being list their titles, with
    the Front-Cover Texts being list, and with the Back-Cover Texts
    being list.

If you have Invariant Sections without Cover Texts, or some other combination of the three, merge those two alternatives to suit the situation.

If your document contains nontrivial examples of program code, we recommend releasing these examples in parallel under your choice of free software license, such as the GNU General Public License, to permit their use in free software.

8 Indices

• Function index
• Variable index
• Concept index