Sunday, 21 August 2016

GSoC 2016 IBus-Braille-Enhancement Project - Summary

Hi,
   First of all my thanks to Indic Project and Swathanthra Malayalam Computing(SMC) for accepting this project. All hats off to my mentors Nalin Sathyan and Samuel Thibault. The project was awesome and I believe that I have done my maximum without any prior experience

Project Blog : http://ibus-braille-enhancement.blogspot.in/


Now let me outline what we have done during this period.

Braille-Input-Tool (The on-line version)
  Just like Google transliteration or Google Input Tools online. This is required because it's completely operating system independent and it's a modern method which never force user to install additional plugin or specific browser. The user might use this form temporary places like internet cafe. This is written using JQuery and Html. And works well in GNU/Linux, Microsoft windows, Android etc

See All Commits : https://github.com/anwar3746/braille-input/commits/gh-pages
Test with following link : http://anwar3746.github.io/braille-input/


IBus-Braille enhancements
See All Commits : https://gitlab.com/anwar3746/ibus-braille/activity

1 IBus-Braille integrated with Liblouis : The Liblouis software suite provides an open-source braille translator, back-translator and formatter for a large number of languages and braille codes. So maintaining and shipping separate braille maps(located at /share/ibus-sharada-braille/braille) with ibus-braille is a bad idea. Through this we completely adopted Ibus-Braille to use Liblouis. The conversion is done in an entire word manner instead of each letter. ie the conversion does after writing direct braille unicode and pressing space.
Commit 1 : https://gitlab.com/anwar3746/ibus-braille/commit/6826982fa39cbd2e155bfb389658e16cc57b0dae
Commit 2 : https://gitlab.com/anwar3746/ibus-braille/commit/7032cf7b0c8cea7ce6c619c39750f5110effcfa3
Commit 3 : https://gitlab.com/anwar3746/ibus-braille/commit/46ec83a1caab75b2b25bbd06e1156d927b33c211

See Picture of Ibus-Braille preferences given below

2 8-Dot braille Enabled : Yes languages having more than 64 characters which can't be handled with 64 (6 dots ) combination are there, Music notations like  “Abreu” and LAMBDA (Linear Access to Mathematics for Braille Device and Audio Synthesis) uses 8-dot braille system.  unicode support 8-dot braille.
Commit 1 : https://gitlab.com/anwar3746/ibus-braille/commit/54d22c0acbf644709d72db076bd6de00af0e20b9

See key/shortcut page picture of ISB preferences dot setting

3 Dot 4 issue Solved :  In IBus-Braille when we type in bharati braille such as Malayalam, Hindi, etc. we have to use 13-4-13 to get letter ക്ക(Kka). But according to braille standard in order to get EKKA one should press 4-13-13. And this make beginners to do extra learning to start typing. Through this project we solved this issues and a conventional-braille-mode switch is provided in preferences in order to switch between.

Commit : https://gitlab.com/anwar3746/ibus-braille/commit/089edca78d31355c3ab0e08559f0d9fe79929de6

4 Add Facility to write direct Braille Unicode : Now one can use IBus-Braille to type braille dot notation directly with the combination.  The output may be sent to a braille embosser. Here braille embosser is an impact printer that renders text in braille characters as tactile braille cells.

Commit : https://gitlab.com/anwar3746/ibus-braille/commit/4c6d2e3c8a2bbe86e08ca8820412201a52117ad1


5 Three to Six for disabled people with one hand : A three key implementation which uses delay factor between key presses for example 13 followed by
13 having delay less than delay factor (eg:0.2) will give X. If more, then output would be KK. If one want to type a letter having combination only 4,5,6 he have to press "t" key prior. The key and the Conversion-Delay can be adjusted from preferences.

Commit : https://gitlab.com/anwar3746/ibus-braille/commit/dda2bd83ba69fb0a0f6b526a940bc878bf230485

6 Arabic language added
Commit : https://gitlab.com/anwar3746/ibus-braille/commit/bd0af5fcfabf891f0b0e6649a3a6c647b0d5e336

7 Many bugs solved
Commit : https://gitlab.com/anwar3746/ibus-braille/commit/da0f0309edb4915ed770e9ab41e4355c2bd2c713
others are implied

Project Discourse : https://docs.google.com/document/d/16v-BMLLzWmzbo1n5S-wDTnUmFV-cwhoon1PeJ0mDM64/edit?usp=sharing
IBus-Sharada-Braille (GSoC 2014) : http://ibus-sharada-braille.blogspot.in/

Plugins for firefox and chrome
    This plugin can be installed will work with every text entry on the web pages no need for copy paste. extensions are written in Javascript.
See All Commits : https://github.com/anwar3746/braille-browser-addons/commits/master


Modification yet desirable are as following

1 Announce extra information through Screen Reader:  When user expand abbreviation or a contraction having more than 2 letters is substituted the screen reader is not announcing it. We have to write a orca(screen reader) plugin for Ibus-Braille

2 A UI for Creating and Editing Liblouis Tables

3 Add support for more Indic Languages and Mathematica Operators via liblouis

Braille-input-tool (online version)
                             
                       Liblouis integration
Conventional Braille, Three Dot mode and Table Type selection 
Chrome Extension

Direct braille unicode typing
 Eight dot braille enabled

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