Loading a custom CSS on kepub opening - Page 2

Anak · 07-31-2013, 03:31 PM

Quote:

Originally Posted by Lucas Malor

Do you know if the program GUI (nickel) look for a custom css as kepubs do?

Yes, it does but I didn't get it to work.

libnickel.so1.0.0 looks for

Code:

res:///userStyle.css

(more info @ Datalogics)

Just as it looks for installed hyphen dictionaries in

Code:

res:///hyphenDicts/

(more info @ Datalogics)
This works as I have successfully installed a Dutch hyphen dictionary.

And for fonts:

Code:

res:///fonts/

I don't know if this is a reference to the internal font directory, the user font directory with sideloaded fonts, or both. I assume both.

Mike76 · 07-31-2013, 03:45 PM

Quote:

Originally Posted by Anak

This works as I have successfully installed a Dutch hyphen dictionary.

Can you tell some details about it? I would like to add Hungarian dictionary to my Kobo Mini, if it's possible.

PeterT · 07-31-2013, 04:07 PM

While that filename might be present in the lib file, running strace showed no sign of it being looked for.

Anak · 07-31-2013, 05:01 PM

Quote:

Originally Posted by Mike76

Can you tell some details about it? I would like to add Hungarian dictionary to my Kobo Mini, if it's possible.

Datalogics RMSDK:
Customers may add their own hyphenation dictionaries for other languages. Hyphenation dictionaries are in the same format as the ones used in OpenOffice.
For the Dutch hyphenation to work I made a patch containing only these two files:

Code:

.\usr\local\Kobo\hyphenDicts\hyph_nl.dic
.\usr\share\hyphen\hyph_nl_NL.dic

The easiest way to make a patch file is using a full firmware version and then deleting every single file and directory in that firmware except for one existing hyphenation dictionary. I.e. hyph_en.dic and hyph_en_US.dic. And then save it.

I assume you do have (or can find) an Hungarian hyphenation dictionary.

Replace hyph_en.dic for the OpenOffice compatible Hungarian hyphenation dictionary. I'm not sure if the Hungarian country code is hu, but if it is the file should be named hyph_hu.dic. This file needs to be in UTF-8 format (ANSI won't work).
Then rename hyph_en_US.dic in hyph_hu_HU.dic. This file contains only a path to the correct hyphenation file. I.e: English is: /usr/local/Kobo/hyphenDicts/hyph_en.dic. Rename hyph_en.dic in hyph_hu.dic and save it.

You're done.

Then install the patch the same way as installing firmware manually.

byblo · 08-01-2013, 02:29 AM

So, theres no equivalent for epub ?

davidfor · 08-01-2013, 02:54 AM

Not that anyone has found, but...

I have just finished a change for the Kobo driver in calibre. This adds an option to read a file with CSS and append it to the stylesheets in an epub when the sending the book to the device. It does a couple of other things depending on the contents of the file. This will be in the next calibre release. I will post a full description around the time release happens.

The extended driver has already been changed so this won't break it. But, there will be an update to more fully take advantage of this change.

WS64 · 08-01-2013, 05:54 AM

But this is not the same since it changes the epub itself.
That means if Kobo changes things again and you try to compensate this by an additional CSS you have to upload all files again.

jgoguen · 08-01-2013, 06:13 AM

It's also better than nothing! And really, I've looked at davidfor's code, Kobo would have to break ePub compatibility to stop his tweak from working. It's just a change to the CSS already in a book, doesn't change the library cooy, and gets applied every time the book is sent. And pretty slick

I'm also doing some CSS tweaks, but I decided not to use this kepub CSS because I'm interested in generating files that could be used on any ePub reader post-conversion. I also went a different way from davidfor, but Kobo would have to break ePub compatibility to stop my tweak from working, which I don't see happening barring a company-wide bout of insanity. Which I guess technically possible...

davidfor · 08-01-2013, 08:07 AM

I'm with jgoguen on this. It would be much better if Kobo had user adjustable way of doing this on the device. But they don't for epubs, so something like this is the only way to go. And to break this, Kobo would have to completely epub reading.

Mike76 · 08-01-2013, 10:51 AM

Anak: Thanks for your help, it works fine with normal epubs. However, Kobo epubs generated via Kobo Touch Extended plugin seems to be using a different hyphen dictionary instead of the hungarian one, and I've no idea how to solve it.

Anak · 08-01-2013, 04:58 PM

Quote:

Originally Posted by Mike76

Anak: Thanks for your help, it works fine with normal epubs. However, Kobo epubs generated via Kobo Touch Extended plugin seems to be using a different hyphen dictionary instead of the hungarian one, and I've no idea how to solve it.

Yes, it only works with normal epubs. I do think that kepub uses the same hyphen dictionary but while the Adobe renderer searches for installed dictionaries (based on the language code) the kepub renderer seems only to use the native installed dictionaries. I guess (the path of) these dictionaries are hard coded. Wish Kobo would fix this/add the fexibility to search for other installed languages.

jgoguen · 08-01-2013, 05:33 PM

Quote:

Originally Posted by Anak

I do think that kepub uses the same hyphen dictionary but while the Adobe renderer searches for installed dictionaries (based on the language code) the kepub renderer seems only to use the native installed dictionaries. I guess (the path of) these dictionaries are hard coded.

Depending on when the KePub is created, the answer to that is different. Tell me when the KePub was created and I can probably give you a solid answer.

Quote:

Originally Posted by Anak

Wish Kobo would fix this/add the fexibility to search for other installed languages.

Depending on when the KePub was created, it may not be Kobo's fault, but mine. Again, tell me when the KePub was created and I can tell you whether Kobo already has this flexibility or not, or if I'm not sure I can tell you how to figure it out for yourself pretty quickly.

The moral of the story is "don't assume that it's Kobo's fault when things don't work the way you expect, especially when you're doing things they specifically say not to do"

If you're not sure, don't be shy to ask the people who develop the software you're using. I can't speak for all the people who develop calibre and its myriad plugins, but I'm quite happy to tell you when a bug is my fault or Kobo's fault; if it's my fault you're helping to make my software better, and if it's Kobo's fault you could help make their software better and maybe also make mine better at the same time!

Anak · 08-02-2013, 11:00 AM

Quote:

Originally Posted by jgoguen

Depending on when the KePub is created, the answer to that is different. Tell me when the KePub was created and I can probably give you a solid answer.

Depending on when the KePub was created, it may not be Kobo's fault, but mine. Again, tell me when the KePub was created and I can tell you whether Kobo already has this flexibility or not, or if I'm not sure I can tell you how to figure it out for yourself pretty quickly.

The moral of the story is "don't assume that it's Kobo's fault when things don't work the way you expect, especially when you're doing things they specifically say not to do"

If you're not sure, don't be shy to ask the people who develop the software you're using. I can't speak for all the people who develop calibre and its myriad plugins, but I'm quite happy to tell you when a bug is my fault or Kobo's fault; if it's my fault you're helping to make my software better, and if it's Kobo's fault you could help make their software better and maybe also make mine better at the same time!

No, it has nothing to do with your plugin or calibre. Hyphenation doesn't work with original kepubs or epubs that are only renamed to kepub. Additional hyphenation files are not detected.

jgoguen · 08-02-2013, 12:25 PM

Oh. Well then, that's going to be awkward. Did you put the hyphenation dic in both /usr/share/hyphen/ and /usr/local/Kobo/hyphenDicts/?

Anak · 08-02-2013, 12:52 PM

Yes, see post #19.

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07-31-2013, 04:07 PM	#18
PeterT Grand Sorcerer Posts: 13,515 Karma: 78910202 Join Date: Nov 2007 Location: Toronto Device: Libra H2O, Libra Colour	While that filename might be present in the lib file, running strace showed no sign of it being looked for.

08-01-2013, 02:29 AM	#20
byblo Traumatized Posts: 68 Karma: 175722 Join Date: Oct 2009 Device: paper, Kobo Glue	So, theres no equivalent for epub ?

08-01-2013, 02:54 AM	#21
davidfor Grand Sorcerer Posts: 24,905 Karma: 47303824 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	Not that anyone has found, but... I have just finished a change for the Kobo driver in calibre. This adds an option to read a file with CSS and append it to the stylesheets in an epub when the sending the book to the device. It does a couple of other things depending on the contents of the file. This will be in the next calibre release. I will post a full description around the time release happens. The extended driver has already been changed so this won't break it. But, there will be an update to more fully take advantage of this change.

08-01-2013, 05:54 AM	#22
WS64 ♫ Posts: 661 Karma: 506380 Join Date: Aug 2010 Location: Germany Device: Kobo Aura / PB Lux 2 / Bookeen Frontlight / Kobo Mini / Nook Color	But this is not the same since it changes the epub itself. That means if Kobo changes things again and you try to compensate this by an additional CSS you have to upload all files again.

08-01-2013, 06:13 AM	#23
jgoguen Generally Awesome Person Posts: 1,100 Karma: 2191133 Join Date: Jan 2013 Location: /dev/kmem Device: Kobo Clara HD, Kindle Oasis	It's also better than nothing! And really, I've looked at davidfor's code, Kobo would have to break ePub compatibility to stop his tweak from working. It's just a change to the CSS already in a book, doesn't change the library cooy, and gets applied every time the book is sent. And pretty slick I'm also doing some CSS tweaks, but I decided not to use this kepub CSS because I'm interested in generating files that could be used on any ePub reader post-conversion. I also went a different way from davidfor, but Kobo would have to break ePub compatibility to stop my tweak from working, which I don't see happening barring a company-wide bout of insanity. Which I guess technically possible...

08-01-2013, 08:07 AM	#24
davidfor Grand Sorcerer Posts: 24,905 Karma: 47303824 Join Date: Jul 2011 Location: Sydney, Australia Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos	I'm with jgoguen on this. It would be much better if Kobo had user adjustable way of doing this on the device. But they don't for epubs, so something like this is the only way to go. And to break this, Kobo would have to completely epub reading.

08-01-2013, 10:51 AM	#25
Mike76 Connoisseur Posts: 69 Karma: 35064 Join Date: Jan 2012 Location: Hungary Device: Kindle Paperwhite 2013, Kobo Mini, iPad Mini	Anak: Thanks for your help, it works fine with normal epubs. However, Kobo epubs generated via Kobo Touch Extended plugin seems to be using a different hyphen dictionary instead of the hungarian one, and I've no idea how to solve it.

08-02-2013, 12:25 PM	#29
jgoguen Generally Awesome Person Posts: 1,100 Karma: 2191133 Join Date: Jan 2013 Location: /dev/kmem Device: Kobo Clara HD, Kindle Oasis	Oh. Well then, that's going to be awkward. Did you put the hyphenation dic in both /usr/share/hyphen/ and /usr/local/Kobo/hyphenDicts/?

08-02-2013, 12:52 PM	#30
Anak Guru Posts: 603 Karma: 641742 Join Date: Mar 2012 Location: DE Device: Kobo Glo	Yes, see post #19.

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