[giow] (1) Once you close a BroadcastChannel, you can't use it to sen…

…d anymore either

Fixing https://www.w3.org/Bugs/Public/show_bug.cgi?id=26545
Affected topics: DOM APIs

git-svn-id: http://svn.whatwg.org/webapps@8762 340c8d12-0b0e-0410-8428-c7bf67bfef74

complete.html

@@ -68163,7 +68163,8 @@ <h3 id=broadcasting-to-other-browsing-contexts>9.6 <dfn>Broadcasting to other br
   <ol><li><p>Let <var>source settings</var> be <var>source</var>'s
    <a href=#broadcastchannel-settings-object id=broadcasting-to-other-browsing-contexts:broadcastchannel-settings-object-2><code>BroadcastChannel</code> settings object</a>.</p>
 
-   <li><p>Let <var>source channel</var> be <var>source</var>'s
+   <li><p>If <var>source</var>'s <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-2>closed flag</a> is
+   true, then throw an <code id=broadcasting-to-other-browsing-contexts:invalidstateerror><a href=#invalidstateerror>InvalidStateError</a></code> exception and abort these steps.<li><p>Let <var>source channel</var> be <var>source</var>'s
    <a href=#channel-name id=broadcasting-to-other-browsing-contexts:channel-name-3>channel name</a>.</p>
 
    <li><p>Let <var>cloned message</var> be a <a href=#structured-clone id=broadcasting-to-other-browsing-contexts:structured-clone>structured clone</a> of the <var>message</var> argument. If this throws an exception, then rethrow that exception and
@@ -68183,7 +68184,7 @@ <h3 id=broadcasting-to-other-browsing-contexts>9.6 <dfn>Broadcasting to other br
 
      <li><p>Their <a href=#broadcastchannel-settings-object id=broadcasting-to-other-browsing-contexts:broadcastchannel-settings-object-4><code>BroadcastChannel</code> settings object</a> specifies an
      <a href=#origin-2 id=broadcasting-to-other-browsing-contexts:origin-2-2>origin</a> that is the <a href=#same-origin id=broadcasting-to-other-browsing-contexts:same-origin>same origin</a> as the <a href=#origin-2 id=broadcasting-to-other-browsing-contexts:origin-2-3>origin</a> specified
-     by <var>source settings</var>.<li><p>Their <a href=#channel-name id=broadcasting-to-other-browsing-contexts:channel-name-4>channel name</a> is a <a href=#case-sensitive id=broadcasting-to-other-browsing-contexts:case-sensitive>case-sensitive</a> match for <var>source channel</var>.<li><p>Their <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-2>closed flag</a> is
+     by <var>source settings</var>.<li><p>Their <a href=#channel-name id=broadcasting-to-other-browsing-contexts:channel-name-4>channel name</a> is a <a href=#case-sensitive id=broadcasting-to-other-browsing-contexts:case-sensitive>case-sensitive</a> match for <var>source channel</var>.<li><p>Their <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-3>closed flag</a> is
      false.</ul>
 
    <li><p>Remove <var>source</var> from <var>destinations</var>.<li>
@@ -68214,14 +68215,14 @@ <h3 id=broadcasting-to-other-browsing-contexts>9.6 <dfn>Broadcasting to other br
 
    </ol>
 
-  <p>While a <code id=broadcasting-to-other-browsing-contexts:broadcastchannel-12><a href=#broadcastchannel>BroadcastChannel</a></code> object whose <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-3>closed flag</a> is false has an event listener
+  <p>While a <code id=broadcasting-to-other-browsing-contexts:broadcastchannel-12><a href=#broadcastchannel>BroadcastChannel</a></code> object whose <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-4>closed flag</a> is false has an event listener
   registered for <code id=broadcasting-to-other-browsing-contexts:event-message-2><a href=#event-message>message</a></code> events, there must be a strong
   reference from <a href=#global-object id=broadcasting-to-other-browsing-contexts:global-object-3>global object</a> specified by the <code id=broadcasting-to-other-browsing-contexts:broadcastchannel-13><a href=#broadcastchannel>BroadcastChannel</a></code> object's
   <a href=#broadcastchannel-settings-object id=broadcasting-to-other-browsing-contexts:broadcastchannel-settings-object-7><code>BroadcastChannel</code> settings object</a> to the <code id=broadcasting-to-other-browsing-contexts:broadcastchannel-14><a href=#broadcastchannel>BroadcastChannel</a></code>
   object itself.</p>
 
   <p>The <dfn id=dom-broadcastchannel-close><code>close()</code></dfn> method must set the
-  <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-4>closed flag</a> of the
+  <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-5>closed flag</a> of the
   <code id=broadcasting-to-other-browsing-contexts:broadcastchannel-15><a href=#broadcastchannel>BroadcastChannel</a></code> object on which it was invoked to true.</p>
 
   <p class=note>Authors are strongly encouraged to explicitly close <code id=broadcasting-to-other-browsing-contexts:broadcastchannel-16><a href=#broadcastchannel>BroadcastChannel</a></code>

index

@@ -68163,7 +68163,8 @@ interface <dfn id=broadcastchannel>BroadcastChannel</dfn> : <a href=#eventtarget
   <ol><li><p>Let <var>source settings</var> be <var>source</var>'s
    <a href=#broadcastchannel-settings-object id=broadcasting-to-other-browsing-contexts:broadcastchannel-settings-object-2><code>BroadcastChannel</code> settings object</a>.</p>
 
-   <li><p>Let <var>source channel</var> be <var>source</var>'s
+   <li><p>If <var>source</var>'s <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-2>closed flag</a> is
+   true, then throw an <code id=broadcasting-to-other-browsing-contexts:invalidstateerror><a href=#invalidstateerror>InvalidStateError</a></code> exception and abort these steps.<li><p>Let <var>source channel</var> be <var>source</var>'s
    <a href=#channel-name id=broadcasting-to-other-browsing-contexts:channel-name-3>channel name</a>.</p>
 
    <li><p>Let <var>cloned message</var> be a <a href=#structured-clone id=broadcasting-to-other-browsing-contexts:structured-clone>structured clone</a> of the <var>message</var> argument. If this throws an exception, then rethrow that exception and
@@ -68183,7 +68184,7 @@ interface <dfn id=broadcastchannel>BroadcastChannel</dfn> : <a href=#eventtarget
 
      <li><p>Their <a href=#broadcastchannel-settings-object id=broadcasting-to-other-browsing-contexts:broadcastchannel-settings-object-4><code>BroadcastChannel</code> settings object</a> specifies an
      <a href=#origin-2 id=broadcasting-to-other-browsing-contexts:origin-2-2>origin</a> that is the <a href=#same-origin id=broadcasting-to-other-browsing-contexts:same-origin>same origin</a> as the <a href=#origin-2 id=broadcasting-to-other-browsing-contexts:origin-2-3>origin</a> specified
-     by <var>source settings</var>.<li><p>Their <a href=#channel-name id=broadcasting-to-other-browsing-contexts:channel-name-4>channel name</a> is a <a href=#case-sensitive id=broadcasting-to-other-browsing-contexts:case-sensitive>case-sensitive</a> match for <var>source channel</var>.<li><p>Their <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-2>closed flag</a> is
+     by <var>source settings</var>.<li><p>Their <a href=#channel-name id=broadcasting-to-other-browsing-contexts:channel-name-4>channel name</a> is a <a href=#case-sensitive id=broadcasting-to-other-browsing-contexts:case-sensitive>case-sensitive</a> match for <var>source channel</var>.<li><p>Their <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-3>closed flag</a> is
      false.</ul>
 
    <li><p>Remove <var>source</var> from <var>destinations</var>.<li>
@@ -68214,14 +68215,14 @@ interface <dfn id=broadcastchannel>BroadcastChannel</dfn> : <a href=#eventtarget
 
    </ol>
 
-  <p>While a <code id=broadcasting-to-other-browsing-contexts:broadcastchannel-12><a href=#broadcastchannel>BroadcastChannel</a></code> object whose <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-3>closed flag</a> is false has an event listener
+  <p>While a <code id=broadcasting-to-other-browsing-contexts:broadcastchannel-12><a href=#broadcastchannel>BroadcastChannel</a></code> object whose <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-4>closed flag</a> is false has an event listener
   registered for <code id=broadcasting-to-other-browsing-contexts:event-message-2><a href=#event-message>message</a></code> events, there must be a strong
   reference from <a href=#global-object id=broadcasting-to-other-browsing-contexts:global-object-3>global object</a> specified by the <code id=broadcasting-to-other-browsing-contexts:broadcastchannel-13><a href=#broadcastchannel>BroadcastChannel</a></code> object's
   <a href=#broadcastchannel-settings-object id=broadcasting-to-other-browsing-contexts:broadcastchannel-settings-object-7><code>BroadcastChannel</code> settings object</a> to the <code id=broadcasting-to-other-browsing-contexts:broadcastchannel-14><a href=#broadcastchannel>BroadcastChannel</a></code>
   object itself.</p>
 
   <p>The <dfn id=dom-broadcastchannel-close><code>close()</code></dfn> method must set the
-  <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-4>closed flag</a> of the
+  <a href=#concept-broadcastchannel-closed id=broadcasting-to-other-browsing-contexts:concept-broadcastchannel-closed-5>closed flag</a> of the
   <code id=broadcasting-to-other-browsing-contexts:broadcastchannel-15><a href=#broadcastchannel>BroadcastChannel</a></code> object on which it was invoked to true.</p>
 
   <p class=note>Authors are strongly encouraged to explicitly close <code id=broadcasting-to-other-browsing-contexts:broadcastchannel-16><a href=#broadcastchannel>BroadcastChannel</a></code>

source

@@ -92518,6 +92518,9 @@ interface <dfn>BroadcastChannel</dfn> : <span>EventTarget</span> {
    <li><p>Let <var>source settings</var> be <var>source</var>'s
    <span><code>BroadcastChannel</code> settings object</span>.</p>
 
+   <li><p>If <var>source</var>'s <span data-x="concept-BroadcastChannel-closed">closed flag</span> is
+   true, then throw an <code>InvalidStateError</code> exception and abort these steps.</p></li>
+
    <li><p>Let <var>source channel</var> be <var>source</var>'s
    <span>channel name</span>.</p>