Querying some iBooks status info

rtmyers · 11-22-2012, 03:43 AM

Does anyone know how to query iBooks (with a CSS media query or property or JS or whatever) as to:

1) Is the book being read in paged or scrolling mode?
2) In two-page landscape mode, is an element on the or the right page?

A web page I found seemed to indicate media queries "paginated" and "nonpaginated" might exist, but if they do, I can't get them to work with declarations of the form

@media screen and (paginated) {
h1 { color: pink; }
}

The iBookStore Asset Guide, where one might hope to find clues, does not seem to have been updated to reflect any changes in iBooks 3.0.

Thanks for any help.
--
Bob

dgatwood · 11-22-2012, 03:07 PM

If you have a free Apple developer account, it's probably worth filing a bug at bugreport.apple.com about #1.

For #2, I would assume that @page:left and @page:right would be supported, but I'm not certain. If not, see my previous answer. :-)

Also, a word of warning: segregate your media queries into a separate file. Adobe Digital Editions (upon which a number of readers are based) interprets "not required/unsupported" as "should break everything if present" when it comes to CSS features, so if you use any @page or @media directives, everything in that CSS file is ignored by ADE, Nook, etc.

rtmyers · 11-22-2012, 10:42 PM

Thanks, but as far as I can tell, @page:left and @page:right rules, even if supported, allow only the margins and other page-level aspects specified, not specific CSS rules. What I really want to do is, say:

@page:left { h1: { color: pink; } }

I'm not even sure that's supported by any of the CSS specs, much less by iBooks. What I would love to discover is a magic class in effect on left and right pages, such as .ibooks-left-page or .ibooks-right-page...

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11-22-2012, 03:43 AM	#1
rtmyers Member Posts: 24 Karma: 10 Join Date: Aug 2012 Device: iPad	Querying some iBooks status info Does anyone know how to query iBooks (with a CSS media query or property or JS or whatever) as to: 1) Is the book being read in paged or scrolling mode? 2) In two-page landscape mode, is an element on the or the right page? A web page I found seemed to indicate media queries "paginated" and "nonpaginated" might exist, but if they do, I can't get them to work with declarations of the form @media screen and (paginated) { h1 { color: pink; } } The iBookStore Asset Guide, where one might hope to find clues, does not seem to have been updated to reflect any changes in iBooks 3.0. Thanks for any help. -- Bob

11-22-2012, 03:07 PM	#2
dgatwood Curmudgeon Posts: 629 Karma: 1623086 Join Date: Jan 2012 Device: iPad, iPhone, Nook Simple Touch	If you have a free Apple developer account, it's probably worth filing a bug at bugreport.apple.com about #1. For #2, I would assume that @page:left and @page:right would be supported, but I'm not certain. If not, see my previous answer. :-) Also, a word of warning: segregate your media queries into a separate file. Adobe Digital Editions (upon which a number of readers are based) interprets "not required/unsupported" as "should break everything if present" when it comes to CSS features, so if you use any @page or @media directives, everything in that CSS file is ignored by ADE, Nook, etc.

11-22-2012, 10:42 PM	#3
rtmyers Member Posts: 24 Karma: 10 Join Date: Aug 2012 Device: iPad	Thanks, but as far as I can tell, @page:left and @page:right rules, even if supported, allow only the margins and other page-level aspects specified, not specific CSS rules. What I really want to do is, say: @page:left { h1: { color: pink; } } I'm not even sure that's supported by any of the CSS specs, much less by iBooks. What I would love to discover is a magic class in effect on left and right pages, such as .ibooks-left-page or .ibooks-right-page...

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