1 # indicator-keyboard-led - simulate keyboard lock keys LED
3 This is a Unity application indicator designed for keyboards without lock
4 keys LED. It allows the user to check the state of the three locks (Caps lock,
5 Num lock and Scroll lock) without requiring any mouse or keyboard action. It
6 also allows the lock keys to be toggled with mouse clicks, which could be
7 useful for keyboards without Scroll lock keys or malfunctioning keyboards.
11 ![indicator default][sc1]
12 Default appearance of the indicator with Num lock on and Caps and Scroll locks
15 ![indicator menu][sc2]
16 Menu of the indicator, shown on click. The locks can be toggled by clicking
17 the respective item in the menu.
19 ![indicator short][sc3]
20 Alternative (short) appearance of the indicator.
26 - Python 3 GObject introspection (python3-gi)
29 Those marked with (*) are probably installed by default in recent Ubuntu
30 distributions. To install the rest, run:
32 sudo apt-get install python3-gi xdotool
36 1. Install the dependencies listed above.
37 2. Clone this repository.
38 3. Add the script as a startup application. (Use option `--short` for short
39 appearance; use option `--order` to customize the order of the locks
40 displayed. See [Examples](#examples))
41 4. Run the script manually for the first time. (Alternatively, log out
43 5. The indicator should be shown at the top right corner, with a filled circle
44 representing a lock turned on and an unfilled circle representing a lock
46 6. Clicking on the indicator should result in a menu with the three locks.
47 Clicking on the menu item would cause the corresponding lock to toggle.
51 ![indicator default][sc1]
52 Default appearance. `python3 indicator-keyboard-led.py`
54 ![indicator short][sc3]
55 Short appearance. `python3 indicator-keyboard-led.py --short`
58 Order changed to Caps Num Scroll.
59 `python3 indicator-keyboard-led.py --order CNS`
62 Hide Scroll lock. `python3 indicator-keyboard-led.py --order NC`
64 ![indicator C short][sc6]
65 Show Caps lock only, short appearance.
66 `python3 indicator-keyboard-led.py --short --order C`
68 ![indicator default, French locale][sc7]
69 Default appearance in a French locale.
70 `LANGUAGE=fr_FR python3 indicator-keyboard-led.py`
72 [sc1]: screenshots/sc1.png
73 [sc2]: screenshots/sc2.png
74 [sc3]: screenshots/sc3.png
75 [sc4]: screenshots/sc4.png
76 [sc5]: screenshots/sc5.png
77 [sc6]: screenshots/sc6.png
78 [sc7]: screenshots/sc7.png
82 It seems to be a common problem that Scroll Lock is not usable in Ubuntu.
83 To solve this, do the following (assuming US keyboard):
85 > # backup your symbols file
86 > sudo cp /usr/share/X11/xkb/symbols/us{,.distribution}
88 > Add the following line in the `xkb_symbols "basic" {` section. Do not worry
89 > if that second line is not there, it is only there for some languages and
90 > was not there for us on my system.
93 > modifier_map Mod3 { Scroll_Lock }; <==<< Add this line
95 > include "level3(ralt_switch)" <==<< before this line
99 > You may have to do the same in your other layouts if you switch between
102 > Also, there is a cache where xkb layouts live. You should clear it before
103 > restarting your X server to check the new keyboard symbol file(s).
105 > sudo dpkg-reconfigure xkb-data
107 *By Pykler and Giovanni Toraldo on AskUbuntu.* [Source][quotesrc]. Slightly
108 modified. [Original source][origsrc] by dm+ on PCLinuxOS-Forums.
110 [origsrc]: http://www.pclinuxos.com/forum/index.php/topic,125690.msg1052201.html?PHPSESSID=2qsv83lve6dgd0ivq14bfcjc30#msg1052201
111 [quotesrc]: http://askubuntu.com/a/597757/274080
115 As motivated by Issue #1, this script has been localized to French (with
116 the assistance of Wikipedia and Google Translate). Corrections to the
117 translation, as well as translations to other languages, are welcome.
118 Feel free to create a pull request or open an issue.
122 The program "indicator-keyboard-led.py" is released under the MIT License.
123 Please refer to the file for the full text of the license.
125 The icon "icon.svg" is released to the public domain.
129 I would like to thank [Tobias Schlitt](https://github.com/tobyS), who wrote
130 [indicator-chars](https://github.com/tobyS/indicator-chars) which I used
131 as a reference when writing this software.
133 The icon used in the indicator (icon.svg) is modified from the file
134 "emblem-readonly.svg" by [Jakub Steiner](http://jimmac.musichall.cz)
135 who released it to the public domain for the
136 [Tango Icon Library](http://tango.freedesktop.org/Tango_Icon_Library).
142 I was a user of [indicator-keylock][ind-kl], but only one key lock can be shown
143 on the panel. I didn't like the Notify OSD events either.
145 I then came across [lks-indicator][lks] and [indicator-xbdmod][xbdmod], but
146 I didn't like the fact that they refresh the indicator on a regular time
147 interval (every *x* milliseconds) rather than on state changes (only when
148 the locks are toggled).
150 I also thought it would be fun to be able to toggle the locks on-screen.
152 [ind-kl]: https://launchpad.net/~tsbarnes/+archive/ubuntu/indicator-keylock
153 [lks]: https://github.com/SergKolo/lks-indicator
154 [xbdmod]: https://github.com/sneetsher/indicator-xkbmod