Category Archives: General Computing

Randomness

Posted by R on

I am all alone, as I whine
and everything seems fine,
the sun hasn’t lost its shine,
the poems haven’t lost their rhyme,
the music hasn’t lost its chime
the world hasn’t lost its crime
and everyone does look fine.
This is what I always wanted when you were mine…
Why then O dear so I whine ?
I am all alone, no one to bother, No one to answer,
Master of my wishes and time!

I am all alone, as I whine
But if everything does seems fine
Why then O dear do I fright ?
Why is sun no longer bright.
Why is melody no longer in sight
and why does nothing feels right ?

I am all alone, as I whine,
Master of my own time,
but why is the that time stopped ?
Flowers now smell of the rot
and spirit seems wrought
But everything does seem fine.

I am all alone, as I whine,
No soul to talk except mine,
No memories to ponder except thine,

Waiting for the eternal peace,
which I just saw dying…

At.js with froala issue

Posted by R on

At.js is a Javascript library for having Github like mentions in an app. The library is here. It’s a very good library and simple to use however when I tried it, it didn’t work out of the box for froala editor. The problem is At.js surrounds the range with spans and since WebKit browsers insert spans, the editor accepts spans only if

data-fr-verified=”true”

is set to true. So to counter this, when initiating the function, a small tweak is required.

$(‘.froala-view’).atwho({
at: “@”,
editableAtwhoQueryAttrs: {“data-fr-verified”: true},

data:[‘Peter’, ‘Tom’, ‘Anne’]
})

This should get it working as it did for me.

 

Reference: Github issue

 

Hope  it helps

Screen shot in Chrome Extension

Posted by R on

Hi,
There are many chrome extensions to take a screenshot. But recently, I was working on a project where we had to build an extension and also were taking a screenshot. So apparently, chrome provides an API called ‘capturevisibletab’ (doc) and it works. While coding, I referred to this git repo which works perfectly.
But then, as we tested, we found the image was cropped when using a macbook retina display machine.
It took us a while to understand that this is because the devicepixelratio (window.devicePixelRatio) is 2 in a macbook(with retina) display and 1 in others and hence the issue.
Thus, we had to adjust for scale which we did not account for earlier and we referred to this code for adjusting it.

Will soon post our whole code for completeness but the logic is pretty clear from the above code.

Hope it helps !

Modifying the “PATH” variable in MAC

Posted by R on

This is probably the most important thing one can do in a UNIX based system- Modify the PATH variable.

I recently installed Libreoffice on my mac for using its command line tools. It was working fine in the applications folder and showing up on spotlight as well as dock but the command line tool was not working

After some time , I figured that in Linux, I used “libreoffice ….” but in Mac I had to use “soffice…”. soffice command was not directly available to me on terminal and I had to specify the whole path to use it:

/Applications/LibreOffice.app/Contents/MacOS/soffice –help

To use soffice without the whole path, I modified my PATH variable :

nano ~/.bash_profile

(create this file using touch ~/.bash_profile if your system doesn’t have one!!)

Include the lines:

export PATH=”/Applications/LibreOffice.app/Contents/MacOS:$PATH”

Save it and enter the command:

source ~/.bash_profile

And wallah ! The Path variable is modified and we can now use soffice directly in command line.

soffice –help

This way, we can include any application in command line.

Hope it helps.

WiFi issues on Ubuntu 12.04

Posted by R on

Hey ,

Recently installed ubuntu 12.04 on a fresh and clean system. While it works like a charm, a very irritating issue was that the inbuilt wireless card was not working. The ethernet connection using wire worked fine. Googled a lot and wasnt able to figure things out. Finally, backports saved my day. Here is the procedure I followed incase someone finds it useful.

 

Installing backports:

sudo apt-get install  linux-backports-modules-cw-3.8-precise-generic

Some generic headers and libraries:

sudo apt-get install linux-headers-generic build-essential

Download this file and extract it at a location of your choice.
Navigate to the extracted directory using terminal and try:

make defconfig-ath9k
make
sudo make install

Reboot the system and ideally wireless should work!

Hope it helps.

Guake – Annoying feature of renaming tabs

Posted by R on

I am a huge fan of guake terminal and after having used it for quite a while, I am literally addicted to it.

Recently, I encountered a very annoying feature which is when I rename a tab and perform any operation on that tab, the name I gave disappears and the absolute path is shown.

This was very painful because I am used to work with multiple tabs open and naming helps navigation.

After some googling, I found a solution which I present below.

Install gconf-editor.

sudo apt-get install gconf-editor

Start gcong-editor

gconf-editor

Browse to apps/general/guake/general.

On the right hand side, uncheck the “use_vte_titles” item and close it and restart guake.

All tabs would be named “Terminal” and renaming would preserve it.

The technical reason for doing this is the following piece of code:

def on_terminal_title_changed(self, vte, box):
    use_them = self.client.get_bool(KEY("/general/use_vte_titles"))
    if not use_them:
        return
    page = self.notebook.page_num(box)
    self.tabs.get_children()[page].set_label(vte.get_window_title())

As we can see ‘use_vte_titles' key prevents the autorenaming feature

Hope this helps and enjoy using guake.