{"action":"created","issue":{"url":"https://api.github.com/repos/IDPF/epub-revision/issues/676","repository_url":"https://api.github.com/repos/IDPF/epub-revision","labels_url":"https://api.github.com/repos/IDPF/epub-revision/issues/676/labels{/name}","comments_url":"https://api.github.com/repos/IDPF/epub-revision/issues/676/comments","events_url":"https://api.github.com/repos/IDPF/epub-revision/issues/676/events","html_url":"https://github.com/IDPF/epub-revision/issues/676","id":135482065,"number":676,"title":"Spread identification in otherwise spread-less FL 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3.1","description":"Major revision to the EPUB 3 standard","creator":{"login":"mattgarrish","id":1565164,"avatar_url":"https://avatars.githubusercontent.com/u/1565164?v=3","gravatar_id":"","url":"https://api.github.com/users/mattgarrish","html_url":"https://github.com/mattgarrish","followers_url":"https://api.github.com/users/mattgarrish/followers","following_url":"https://api.github.com/users/mattgarrish/following{/other_user}","gists_url":"https://api.github.com/users/mattgarrish/gists{/gist_id}","starred_url":"https://api.github.com/users/mattgarrish/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mattgarrish/subscriptions","organizations_url":"https://api.github.com/users/mattgarrish/orgs","repos_url":"https://api.github.com/users/mattgarrish/repos","events_url":"https://api.github.com/users/mattgarrish/events{/privacy}","received_events_url":"https://api.github.com/users/mattgarrish/received_events","type":"User","site_admin":false},"open_issues":48,"closed_issues":102,"state":"open","created_at":"2015-11-03T20:20:24Z","updated_at":"2016-07-09T09:42:07Z","due_on":"2016-10-01T04:00:00Z","closed_at":null},"comments":7,"created_at":"2016-02-22T17:19:15Z","updated_at":"2016-07-11T13:59:14Z","closed_at":null,"body":"Particularly for comics and manga, some reading systems support a \"fit width\" viewing mode (Play Books, and others).  This is generally most useful when reading graphic content on phones or small tablets... the content is consumed in landscape, with each content (portrait) page fit to the the width of the landscape screen and vertically panned and then vertically paged (from the bottom of one page, the top of the next page comes in from below).  This works very nicely for viewing comics on small screens with the next bubbles often big enough to read!\r\n\r\nMany (most?) comics and manga are numerous non-spread pages, with the occasional true-spread  thrown in -- in the rare (real spread) cases, the Reading System should render the two even/odd pages stitched together and shown as a full synthetic spread.\r\n\r\nWe have metadata for controlling rendering/ordering of synthetic spreads \"rendition:page-spread-left\" and \"rendition:page-spread-right\".  I think we should augment our text in 3.1 to make it explicit that these should be used to identify \"real\" spreads in otherwise spread-less FL content.\r\n\r\nSuch content would likely have volume level metadata:\r\n`    <meta property=\"rendition:layout\">pre-paginated</meta>`\r\n`    <meta property=\"rendition:spread\">auto</meta>`\r\nor maybe even:\r\n`    <meta property=\"rendition:layout\">pre-paginated</meta>`\r\n`    <meta property=\"rendition:spread\">landscape</meta>`\r\n\r\nNote that if the reading system were operating in \"fit-width\" mode it would, in general, not make synthetic spreads in landscape, as most pages are really standalone.\r\n\r\nFor the few page pairs that REALLY want to be rendered as spreads they should be identified as such in the spine (in this example, pages 22 and 23):\r\n    …\r\n`    <itemref idref=\"page22\" properties=\"rendition:page-spread-left\"/>`\r\n`    <itemref idref=\"page23\" properties=\"rendition:page-spread-right\"/>`\r\n    …\r\n\r\nWith some additional informational text we should be able to encourage some traction around this markup for identifying only true spreads and supporting this worthwhile use case."},"comment":{"url":"https://api.github.com/repos/IDPF/epub-revision/issues/comments/231742348","html_url":"https://github.com/IDPF/epub-revision/issues/676#issuecomment-231742348","issue_url":"https://api.github.com/repos/IDPF/epub-revision/issues/676","id":231742348,"user":{"login":"mattgarrish","id":1565164,"avatar_url":"https://avatars.githubusercontent.com/u/1565164?v=3","gravatar_id":"","url":"https://api.github.com/users/mattgarrish","html_url":"https://github.com/mattgarrish","followers_url":"https://api.github.com/users/mattgarrish/followers","following_url":"https://api.github.com/users/mattgarrish/following{/other_user}","gists_url":"https://api.github.com/users/mattgarrish/gists{/gist_id}","starred_url":"https://api.github.com/users/mattgarrish/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/mattgarrish/subscriptions","organizations_url":"https://api.github.com/users/mattgarrish/orgs","repos_url":"https://api.github.com/users/mattgarrish/repos","events_url":"https://api.github.com/users/mattgarrish/events{/privacy}","received_events_url":"https://api.github.com/users/mattgarrish/received_events","type":"User","site_admin":false},"created_at":"2016-07-11T13:59:13Z","updated_at":"2016-07-11T13:59:13Z","body":"The specification has been updated and the changes can be reviewed here:\r\nhttps://rawgit.com/IDPF/epub-revision/master/build/31/spec/epub-packages.html#fxl-properties-page-spread\r\n\r\nPlease close this issue if no other changes are needed."}}
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