[mediaqueries] Add scripting: initial-only.

Author: tabatkins

mediaqueries/Overview.html

@@ -1845,24 +1845,34 @@ <h2 class="heading settled heading" data-level=9 id=mf-scripting><span class=sec
 <h3 class="heading settled heading" data-level=9.1 id=scripting><span class=secno>9.1 </span><span class=content>
 scripting</span><a class=self-link href=#scripting></a></h3>
 
-<table class="definition descdef mq" data-dfn-for=@media><tr><th>Name:<td><dfn class=css-code data-dfn-for=@media data-dfn-type=descriptor data-export="" id=descdef-scripting>scripting<a class=self-link href=#descdef-scripting></a></dfn><tr><th>For:<td><a class=css-code data-link-type=at-rule href=http://dev.w3.org/csswg/css-conditional-3/#at-ruledef-media title=@media>@media</a><tr><th>Value:<td>none | enabled<tr><th>Type:<td>discrete</table>
-<p>	The <a class=property data-link-type=propdesc href=#descdef-scripting title=scripting>scripting</a> media feature is used to query whether ECMAscript is supported
-	on the current document.
+<table class="definition descdef mq" data-dfn-for=@media><tr><th>Name:<td><dfn class=css-code data-dfn-for=@media data-dfn-type=descriptor data-export="" id=descdef-scripting>scripting<a class=self-link href=#descdef-scripting></a></dfn><tr><th>For:<td><a class=css-code data-link-type=at-rule href=http://dev.w3.org/csswg/css-conditional-3/#at-ruledef-media title=@media>@media</a><tr><th>Value:<td>none | initial-only | enabled<tr><th>Type:<td>discrete</table>
+<p>	The <a class=property data-link-type=propdesc href=#descdef-scripting title=scripting>scripting</a> media feature is used to query whether scripting languages,
+	such as JavaScript,
+	are supported on the current document.
 
 	<dl data-dfn-for=@media/scripting data-dfn-type=value>
 		<dt><dfn class=css-code data-dfn-for=@media/scripting data-dfn-type=value data-export="" id=valuedef-enabled>enabled<a class=self-link href=#valuedef-enabled></a></dfn>
 		<dd>
-			Indicates that the user agent supports ECMAscript
+			Indicates that the user agent supports scripting of the page
 			and that support is active for the current document.
 
+		<dt><dfn class=css-code data-dfn-for=@media/scripting data-dfn-type=value data-export="" id=valuedef-initial-only>initial-only<a class=self-link href=#valuedef-initial-only></a></dfn>
+		<dd>
+			Indicates that scripting is enabled during the initial page load,
+			but is not supported afterwards.
+			Examples are printed pages,
+			or pre-rendering network proxies
+			that render a page on a server
+			and send a nearly-static version of the page to the user.
+
 		<dt><dfn class=css-code data-dfn-for=@media/scripting data-dfn-type=value data-export="" id=valuedef-none>none<a class=self-link href=#valuedef-none></a></dfn>
 		<dd>
 			Indicates that the user agent will not run scripts for this document;
-			either it doesn’t support ECMAScript,
+			either it doesn’t support a scripting language,
 			or the support isn’t active for the current document.
 	</dl>
 
-<p>	Some user agents have the ability to turn off ECMAscript support on a per script basis or per domain basis,
+<p>	Some user agents have the ability to turn off scripting support on a per script basis or per domain basis,
 	allowing some, but not all, scripts to run in a particular document.
 	The <a class=property data-link-type=propdesc href=#descdef-scripting title=scripting>scripting</a> media feature does not allow fine grained detection of which script is allowed to run.
 	In this scenario, the value of the <a class=property data-link-type=propdesc href=#descdef-scripting title=scripting>scripting</a> media feature should be <a class=css data-link-for=scripting data-link-type=maybe href=#valuedef-enabled title=enabled>enabled</a>
@@ -1871,10 +1881,6 @@ <h3 class="heading settled heading" data-level=9.1 id=scripting><span class=secn
 
 <p class=note>	Note: A future level of CSS may extend this media feature to allow fine-grained detection of which script is allowed to run.
 
-	<p class=issue id=issue-b8cd6af1><a class=self-link href=#issue-b8cd6af1></a>
-		What about a value for "runs script on load, but not continuously",
-		like Opera Mini?
-
 <h2 class="heading settled heading" data-level=10 id=assorted-issues><span class=secno>10 </span><span class=content>
 Assorted Issues</span><a class=self-link href=#assorted-issues></a></h2>
 
@@ -2136,7 +2142,8 @@ <h2 class="no-num no-ref heading settled heading" id=index><span class=content>
 <li>height, <a href=#descdef-height title="section 4.2">4.2</a>
 <li>hover<ul><li>descriptor for @media, <a href=#descdef-hover title="section 7.2">7.2</a>
 <li>value for @media/hover, <a href=#valuedef-hover title="section 7.2">7.2</a>
-</ul><li>interlace, <a href=#valuedef-interlace title="section 5.2">5.2</a>
+</ul><li>initial-only, <a href=#valuedef-initial-only title="section 9.1">9.1</a>
+<li>interlace, <a href=#valuedef-interlace title="section 5.2">5.2</a>
 <li>light-level, <a href=#descdef-light-level title="section 8.1">8.1</a>
 <li>&lt;media-feature&gt;, <a href=#typedef-media-feature title="section 3">3</a>
 <li>media feature, <a href=#media-feature title="section 2.4">2.4</a>
@@ -2213,7 +2220,7 @@ <h2 class="no-num no-ref heading settled heading" id=property-index><span class=
 <tr><th scope-row=""><a data-property="">pointer</a><td>none | coarse | fine<td><td>discrete
 <tr><th scope-row=""><a data-property="">hover</a><td>none | on-demand | over<td><td>discrete
 <tr><th scope-row=""><a data-property="">light-level</a><td>dim | normal | washed<td><td>discrete
-<tr><th scope-row=""><a data-property="">scripting</a><td>none | enabled<td><td>discrete</table></div>
+<tr><th scope-row=""><a data-property="">scripting</a><td>none | initial-only | enabled<td><td>discrete</table></div>
 
 
 <h2 class="no-num heading settled" id=issues-index><span class=content>Issues Index</span><a class=self-link href=#issues-index></a></h2><div style="counter-reset: issue"><div class=issue>
@@ -2249,10 +2256,6 @@ <h2 class="no-num heading settled" id=issues-index><span class=content>Issues In
 		as discussed in http://lists.w3.org/Archives/Public/www-style/2013Oct/0672.html
 
 	<a href=#issue-406b4c65> ↵ </a></div><div class=issue>
-		What about a value for "runs script on load, but not continuously",
-		like Opera Mini?
-
-<a href=#issue-b8cd6af1> ↵ </a></div><div class=issue>
 		We need a media feature (or set of media features) to detect the type of keyboard available.
 		It should be able to distinguish between full computer keyboards, phone dial pads, tv remotes, or virtual keyboards.
 		As an attempt at an exhaustive list is likely to fail,

mediaqueries/Overview.src.html

@@ -1533,28 +1533,38 @@ <h3 id="scripting">
 
 	<pre class='descdef mq'>
 	Name: scripting
-	Value: none | enabled
+	Value: none | initial-only | enabled
 	For: @media
 	Type: discrete
 	</pre>
 
-	The 'scripting' media feature is used to query whether ECMAscript is supported
-	on the current document.
+	The 'scripting' media feature is used to query whether scripting languages,
+	such as JavaScript,
+	are supported on the current document.
 
 	<dl dfn-type=value dfn-for="@media/scripting">
 		<dt><dfn>enabled</dfn>
 		<dd>
-			Indicates that the user agent supports ECMAscript
+			Indicates that the user agent supports scripting of the page
 			and that support is active for the current document.
 
+		<dt><dfn>initial-only</dfn>
+		<dd>
+			Indicates that scripting is enabled during the initial page load,
+			but is not supported afterwards.
+			Examples are printed pages,
+			or pre-rendering network proxies
+			that render a page on a server
+			and send a nearly-static version of the page to the user.
+
 		<dt><dfn>none</dfn>
 		<dd>
 			Indicates that the user agent will not run scripts for this document;
-			either it doesn't support ECMAScript,
+			either it doesn't support a scripting language,
 			or the support isn't active for the current document.
 	</dl>
 
-	Some user agents have the ability to turn off ECMAscript support on a per script basis or per domain basis,
+	Some user agents have the ability to turn off scripting support on a per script basis or per domain basis,
 	allowing some, but not all, scripts to run in a particular document.
 	The 'scripting' media feature does not allow fine grained detection of which script is allowed to run.
 	In this scenario, the value of the 'scripting' media feature should be ''scripting/enabled''
@@ -1563,10 +1573,6 @@ <h3 id="scripting">
 
 	Note: A future level of CSS may extend this media feature to allow fine-grained detection of which script is allowed to run.
 
-	<p class='issue'>
-		What about a value for "runs script on load, but not continuously",
-		like Opera Mini?
-
 <h2 id='assorted-issues'>
 Assorted Issues</h2>