Merge pull request #2246 from w3c/a11y/issue-2220-redux

mattgarrish · web-flow · commit 6459c44d2359 · 2022-04-13T09:13:03.000-03:00
Fixes to page navigation requirements
diff --git a/epub33/a11y/index.html b/epub33/a11y/index.html
@@ -616,8 +616,8 @@ <h5>Overview</h5>
 					<section id="sec-page-nav-applicability">
 						<h5>Applicability</h5>
 
-						<p>An EPUB Publication SHOULD meet the page navigation objectives defined in this section
-							whenever any of the following cases is true:</p>
+						<p>An EPUB Publication SHOULD include page navigation whenever any of the following cases is
+							true:</p>
 
 						<ul>
 							<li>the EPUB Creator identifies the EPUB Publication as the dynamically paginated equivalent
@@ -633,6 +633,9 @@ <h5>Applicability</h5>
 
 						<p>EPUB Creators MAY include page navigation in reflowable EPUB Publications without statically
 							paginated equivalents.</p>
+
+						<p>When EPUB Creators include page navigation, the objectives defined in this section apply to
+							the EPUB Publication.</p>
 					</section>
 
 					<section id="sec-page-nav-obj">
@@ -704,9 +707,11 @@ <h6>Page List</h6>
 								<dt id="sec-page-list-conf">Meeting this Objective</dt>
 								<dd>
 									<p>An EPUB Publication MUST include a page list.</p>
-									<p>EPUB Creators MUST include links to all pages of content reproduced from the
+									<p>EPUB Creators SHOULD include links to all pages of content reproduced from the
 										source (i.e., they do not have to provide links for blank pages or content not
 										reproduced in the digital edition).</p>
+									<p>EPUB Creators MUST include links to all <a href="#sec-page-breaks-obj">page break
+											markers</a> in the content.</p>
 									<p>EPUB Creators should include links for all pages in the source whether they are
 										reproduced or not, but this is not a requirement.</p>
 									<div class="note">
@@ -1794,6 +1799,11 @@ <h2>Change Log</h2>
 					>working group's issue tracker</a>.</p>
 
 			<ul>
+				<li>12-Apr-2022: Restored recommendation to include links to all reproduced pages in the page list and
+					added a requirement to link to all page break markers to address concerns with the previous change.
+					Clarified that meeting the page navigation requirements is required, but adding page navigation is
+					only recommended in some circumstances. See <a href="https://github.com/w3c/epub-specs/pull/2246"
+						>pull request 2246</a>.</li>
 				<li>12-Apr-2022: Generalized discussion of synchronized text-audio playback objectives and moved
 					specific details of using Media Overlays to the techniques document. See <a
 						href="https://github.com/w3c/epub-specs/issues/2221">issue 2221</a>.</li>
