Mobigen kindle support for "hidden" HTML element for section --> li?

rjnagle · 08-30-2020, 10:42 PM

I notice that the latest epub specification indicates support for the "hidden" HTML element in the navigation document -- see https://www.w3.org/publishing/epub3/...nav-def-hidden

I was wondering: if you use the HIDDEN HTML attribute for li or ol inside the navigation html document, do Kindle reading systems support it?

I'm guessing that e-ink kindles don't support HIDDEN in the navigation document. Does anyone know of a fallback technique to prevent individual TOC items from being displayed on e-inks?

Thanks.

rjnagle · 08-30-2020, 10:57 PM

Egad, am I lazy or what? All I had to do was to render it in the Kindle Previewer. It looks fine. I'll test on the paperwhite, but so far it won't be a problem. Horray!

Hitch · 09-01-2020, 09:17 AM

Quote:

Originally Posted by rjnagle

I notice that the latest epub specification indicates support for the "hidden" HTML element in the navigation document -- see https://www.w3.org/publishing/epub3/...nav-def-hidden

I was wondering: if you use the HIDDEN HTML attribute for li or ol inside the navigation html document, do Kindle reading systems support it?

I'm guessing that e-ink kindles don't support HIDDEN in the navigation document. Does anyone know of a fallback technique to prevent individual TOC items from being displayed on e-inks?

Thanks.

I would tread carefully with hiding TOC items. KDP can be rather pissy about it, fwiw.

Hitch

rjnagle · 09-06-2020, 03:17 PM

Oops, spoke too soon. I may be able to hide the TOC list item in the logical TOC. However, that doesn't hide the entry in the reading system's TOC for current Kindles (and even Adobe DE).

3.2 spec says:
To control rendering across all Reading Systems, authors MUST use the [HTML] hidden attribute to indicate which (if any) portions of the navigation data are excluded from rendering in the content flow. The hidden attribute has no effect on how navigation data is rendered outside of the content flow (such as in dedicated navigation user interfaces provided by Reading Systems).

MUST is the key word here, but apparently that's not true for Kindle or even for Adobe DE.

It's funny, because I can think of multiple situations where I want content to be not visible in the reading system's navigation entries.

Looking further, I see that linear=0 doesn't seem to hide the TOC item from the reading system's navigation system. (Maybe that was a legacy way to do it which was not really implemented?)

08-30-2020, 10:42 PM	#1
rjnagle Zealot Posts: 126 Karma: 2167 Join Date: Oct 2005 Location: Houston, Texas Device: ipad 1, Nook Simple Touch, Kindle 3, ebookwise 1150	kindle support for "hidden" HTML element for section --> li? I notice that the latest epub specification indicates support for the "hidden" HTML element in the navigation document -- see https://www.w3.org/publishing/epub3/...nav-def-hidden I was wondering: if you use the HIDDEN HTML attribute for li or ol inside the navigation html document, do Kindle reading systems support it? I'm guessing that e-ink kindles don't support HIDDEN in the navigation document. Does anyone know of a fallback technique to prevent individual TOC items from being displayed on e-inks? Thanks.

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08-30-2020, 10:57 PM	#2
rjnagle Zealot Posts: 126 Karma: 2167 Join Date: Oct 2005 Location: Houston, Texas Device: ipad 1, Nook Simple Touch, Kindle 3, ebookwise 1150	Egad, am I lazy or what? All I had to do was to render it in the Kindle Previewer. It looks fine. I'll test on the paperwhite, but so far it won't be a problem. Horray!

09-06-2020, 03:17 PM	#4
rjnagle Zealot Posts: 126 Karma: 2167 Join Date: Oct 2005 Location: Houston, Texas Device: ipad 1, Nook Simple Touch, Kindle 3, ebookwise 1150	Oops, spoke too soon. I may be able to hide the TOC list item in the logical TOC. However, that doesn't hide the entry in the reading system's TOC for current Kindles (and even Adobe DE). 3.2 spec says: To control rendering across all Reading Systems, authors MUST use the [HTML] hidden attribute to indicate which (if any) portions of the navigation data are excluded from rendering in the content flow. The hidden attribute has no effect on how navigation data is rendered outside of the content flow (such as in dedicated navigation user interfaces provided by Reading Systems). MUST is the key word here, but apparently that's not true for Kindle or even for Adobe DE. It's funny, because I can think of multiple situations where I want content to be not visible in the reading system's navigation entries. Looking further, I see that linear=0 doesn't seem to hide the TOC item from the reading system's navigation system. (Maybe that was a legacy way to do it which was not really implemented?)