[html5] r7377 - [giow] (3) When you call back() or forward() or go(), cancel any existing naviga [...]

[whatwg at whatwg.org]

Author: ianh
Date: 2012-09-18 17:16:35 -0700 (Tue, 18 Sep 2012)
New Revision: 7377

Modified:
   complete.html
   index
   source
Log:
[giow] (3) When you call back() or forward() or go(), cancel any existing navigation algorithms. But don't support back(), etc, during unload, since that can lead to griefing. (I didn't test the latter with browsers. The former is based on http://lists.w3.org/Archives/Public/public-whatwg-archive/2012Sep/0218.html .)
Affected topics: HTML

Modified: complete.html
===================================================================
--- complete.html	2012-09-19 00:11:36 UTC (rev 7376)
+++ complete.html	2012-09-19 00:16:35 UTC (rev 7377)
@@ -69847,6 +69847,16 @@
    greater than or equal to the number of items in the <a href=#joint-session-history>joint
    session history</a>, then abort these steps.</p>
 
+   <li><p>If the <code><a href=#document>Document</a></code>'s <a href=#unload-a-document>unload a
+   document</a> algorithm is currently running, abort these
+   steps.</li>
+
+   <li><p>If there is an ongoing attempt to navigate the
+   <a href=#browsing-context>browsing context</a> that has not yet <a href=#concept-navigate-mature title=concept-navigate-mature>matured</a> (i.e. it has not
+   passed the point of making its <code><a href=#document>Document</a></code> the
+   <a href=#active-document>active document</a>), then cancel that attempt to navigate
+   the <a href=#browsing-context>browsing context</a>.</li>
+
    <li><p>Let <var title="">specified entry</var> be the entry in the
    <a href=#joint-session-history>joint session history</a> whose index is the sum of <var title="">delta</var> and the index of the <a href=#current-entry-of-the-joint-session-history>current entry of
    the joint session history</a>.</li>

Modified: index
===================================================================
--- index	2012-09-19 00:11:36 UTC (rev 7376)
+++ index	2012-09-19 00:16:35 UTC (rev 7377)
@@ -69847,6 +69847,16 @@
    greater than or equal to the number of items in the <a href=#joint-session-history>joint
    session history</a>, then abort these steps.</p>
 
+   <li><p>If the <code><a href=#document>Document</a></code>'s <a href=#unload-a-document>unload a
+   document</a> algorithm is currently running, abort these
+   steps.</li>
+
+   <li><p>If there is an ongoing attempt to navigate the
+   <a href=#browsing-context>browsing context</a> that has not yet <a href=#concept-navigate-mature title=concept-navigate-mature>matured</a> (i.e. it has not
+   passed the point of making its <code><a href=#document>Document</a></code> the
+   <a href=#active-document>active document</a>), then cancel that attempt to navigate
+   the <a href=#browsing-context>browsing context</a>.</li>
+
    <li><p>Let <var title="">specified entry</var> be the entry in the
    <a href=#joint-session-history>joint session history</a> whose index is the sum of <var title="">delta</var> and the index of the <a href=#current-entry-of-the-joint-session-history>current entry of
    the joint session history</a>.</li>

Modified: source
===================================================================
--- source	2012-09-19 00:11:36 UTC (rev 7376)
+++ source	2012-09-19 00:16:35 UTC (rev 7377)
@@ -81675,6 +81675,17 @@
    greater than or equal to the number of items in the <span>joint
    session history</span>, then abort these steps.</p>
 
+   <li><p>If the <code>Document</code>'s <span>unload a
+   document</span> algorithm is currently running, abort these
+   steps.</p></li>
+
+   <li><p>If there is an ongoing attempt to navigate the
+   <span>browsing context</span> that has not yet <span
+   title="concept-navigate-mature">matured</span> (i.e. it has not
+   passed the point of making its <code>Document</code> the
+   <span>active document</span>), then cancel that attempt to navigate
+   the <span>browsing context</span>.</p></li>
+
    <li><p>Let <var title="">specified entry</var> be the entry in the
    <span>joint session history</span> whose index is the sum of <var
    title="">delta</var> and the index of the <span>current entry of