dap commit: Redirect to Git

changeset:   593:794817a23d8e
tag:         tip
user:        Anssi Kostiainen <anssi.kostiainen@intel.com>
date:        Thu Mar 17 16:00:35 2016 +0200
files:       battery/Overview.html battery/Overview.src.html
description:
Redirect to Git


diff -r abe11905e4dc -r 794817a23d8e battery/Overview.html
--- a/battery/Overview.html	Thu Aug 20 15:50:38 2015 +0300
+++ b/battery/Overview.html	Thu Mar 17 16:00:35 2016 +0200
@@ -1,1071 +1,10 @@
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-  <body class="h-entry" role="document" id="respecDocument"><div class="head" role="contentinfo" id="respecHeader">
-  <p>
-      
-        
-            <a href="http://www.w3.org/"><img width="72" height="48" src="https://www.w3.org/Icons/w3c_home" alt="W3C"></a>
-            
-            
-        
-      
-  </p>
-  <h1 class="title p-name" id="title" property="dcterms:title">Battery Status API</h1>
-  
-  <h2 id="w3c-editor-s-draft-20-august-2015"><abbr title="World Wide Web Consortium">W3C</abbr> Editor's Draft <time property="dcterms:issued" class="dt-published" datetime="2015-08-20">20 August 2015</time></h2>
-  <dl>
-    
-      <dt>This version:</dt>
-      <dd><a class="u-url" href="https://dvcs.w3.org/hg/dap/raw-file/default/battery/Overview.html">https://dvcs.w3.org/hg/dap/raw-file/default/battery/Overview.html</a></dd>
-      <dt>Latest published version:</dt>
-      <dd><a href="http://www.w3.org/TR/battery-status/">http://www.w3.org/TR/battery-status/</a></dd>
-    
-    
-      <dt>Latest editor's draft:</dt>
-      <dd><a href="https://dvcs.w3.org/hg/dap/raw-file/default/battery/Overview.html">https://dvcs.w3.org/hg/dap/raw-file/default/battery/Overview.html</a></dd>
-    
-    
-      <dt>Test suite:</dt>
-      <dd><a href="http://w3c-test.org/battery-status/">http://w3c-test.org/battery-status/</a></dd>
-    
-    
-      <dt>Implementation report:</dt>
-      <dd><a href="http://www.w3.org/2009/dap/wiki/ImplementationStatus">http://www.w3.org/2009/dap/wiki/ImplementationStatus</a></dd>
-    
-    
-    
-      
-    
-    
-    
-    <dt>Editors:</dt>
-    <dd class="p-author h-card vcard" property="bibo:editor" resource="_:editor0"><span property="rdf:first" typeof="foaf:Person"><span property="foaf:name" class="p-name fn">Anssi Kostiainen</span>, <a property="foaf:workplaceHomepage" class="p-org org h-org h-card" href="http://intel.com/">Intel</a></span>
-<span property="rdf:rest" resource="_:editor1"></span>
-</dd>
-<dd class="p-author h-card vcard" resource="_:editor1"><span property="rdf:first" typeof="foaf:Person"><span property="foaf:name" class="p-name fn">Mounir Lamouri</span>, <a property="foaf:workplaceHomepage" class="p-org org h-org h-card" href="http://google.com/">Google Inc.</a> (previously Mozilla)</span>
-<span property="rdf:rest" resource="rdf:nil"></span>
-</dd>
-
-    
-    
-  </dl>
-  
-  
-  
-  
-    
-      <p class="copyright">
-        <a href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a> ©
-        2015
-        
-        <a href="http://www.w3.org/"><abbr title="World Wide Web Consortium">W3C</abbr></a><sup>®</sup>
-        (<a href="http://www.csail.mit.edu/"><abbr title="Massachusetts Institute of Technology">MIT</abbr></a>,
-        <a href="http://www.ercim.eu/"><abbr title="European Research Consortium for Informatics and Mathematics">ERCIM</abbr></a>,
-        <a href="http://www.keio.ac.jp/">Keio</a>, <a href="http://ev.buaa.edu.cn/">Beihang</a>). 
-        
-        <abbr title="World Wide Web Consortium">W3C</abbr> <a href="http://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>,
-        <a href="http://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a> and
-        
-          <a href="http://www.w3.org/Consortium/Legal/copyright-documents">document use</a>
-        
-        rules apply.
-      </p>
-    
-  
-  <hr>
-</div>
-    <section id="abstract" class="introductory" property="dc:abstract"><h2 id="h-abstract" resource="#h-abstract"><span property="xhv:role" resource="xhv:heading">Abstract</span></h2><p>
-      This specification defines an API that provides information about the
-      battery status of the hosting device.
-    </p></section><section id="sotd" class="introductory"><h2 id="h-sotd" resource="#h-sotd"><span property="xhv:role" resource="xhv:heading">Status of This Document</span></h2>
-  
-    
-      
-        <p>
-          <em>This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current <abbr title="World Wide Web Consortium">W3C</abbr> publications and the latest revision of this technical report can be found in the <a href="http://www.w3.org/TR/"><abbr title="World Wide Web Consortium">W3C</abbr> technical reports index</a> at http://www.w3.org/TR/.</em>
-        </p>
-        
-          
-          
-      <p>
-        The functionality described in this specification was initially
-        specified as part of the
-        <a href="http://www.w3.org/TR/system-info-api/">System Information
-        API</a> but has been extracted in order to be more readily available,
-        more straightforward to implement, and in order to produce a
-        specification that could be implemented on its own merits without
-        interference with other, often unrelated, features.
-      </p>
-      <p>
-        No substantial changes have been made since the
-        <a href="http://www.w3.org/TR/2014/WD-battery-status-20140828/">
-        <abbr title="World Wide Web Consortium">W3C</abbr> Last Call Working Draft 28 August 2014</a>
-        (<a href="CR2-diff.html">diff</a>).
-      </p>
-      <p>
-        The CR exit criterion is two interoperable deployed implementations of
-        each feature. No features are marked as 'at-risk'.
-      </p>
-    
-          
-          <p>
-            This document was published by the <a href="http://www.w3.org/2009/dap/">Device APIs Working Group</a> as an Editor's Draft.
-            
-            
-              If you wish to make comments regarding this document, please send them to 
-              <a href="mailto:public-device-apis@w3.org">public-device-apis@w3.org</a> 
-              (<a href="mailto:public-device-apis-request@w3.org?subject=subscribe">subscribe</a>,
-              <a href="http://lists.w3.org/Archives/Public/public-device-apis/">archives</a>).
-            
-            
-            
-            
-            
-              
-              All comments are welcome.
-              
-            
-          </p>
-          
-            <p>
-              Please see the Working Group's  <a href="http://www.w3.org/2009/dap/wiki/ImplementationStatus">implementation
-              report</a>.
-            </p>
-          
-          
-          
-            <p>
-              Publication as an Editor's Draft does not imply endorsement by the <abbr title="World Wide Web Consortium">W3C</abbr>
-              Membership. This is a draft document and may be updated, replaced or obsoleted by other
-              documents at any time. It is inappropriate to cite this document as other than work in
-              progress.
-            </p>
-          
-          
-          
-          <p>
-            
-              This document was produced by a group operating under the 
-              <a id="sotd_patent" property="w3p:patentRules" href="http://www.w3.org/Consortium/Patent-Policy-20040205/">5 February 2004 <abbr title="World Wide Web Consortium">W3C</abbr> Patent
-              Policy</a>.
-            
-            
-            
-              
-                <abbr title="World Wide Web Consortium">W3C</abbr> maintains a <a href="http://www.w3.org/2004/01/pp-impl/43696/status" rel="disclosure">public list of any patent
-                disclosures</a> 
-              
-              made in connection with the deliverables of the group; that page also includes
-              instructions for disclosing a patent. An individual who has actual knowledge of a patent
-              which the individual believes contains
-              <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#def-essential">Essential
-              Claim(s)</a> must disclose the information in accordance with
-              <a href="http://www.w3.org/Consortium/Patent-Policy-20040205/#sec-Disclosure">section
-              6 of the <abbr title="World Wide Web Consortium">W3C</abbr> Patent Policy</a>.
-            
-            
-          </p>
-          
-            <p>
-              This document is governed by the  <a id="w3c_process_revision" href="http://www.w3.org/2005/10/Process-20051014/">14 October 2005 <abbr title="World Wide Web Consortium">W3C</abbr> Process Document</a>.
-            </p>
-          
-          
-        
-      
-    
-  
-</section><section id="toc"><h2 class="introductory" id="h-toc" resource="#h-toc"><span property="xhv:role" resource="xhv:heading">Table of Contents</span></h2><ul class="toc" role="directory" id="respecContents"><li class="tocline"><a href="#introduction" class="tocxref"><span class="secno">1. </span>Introduction</a></li><li class="tocline"><a href="#conformance" class="tocxref"><span class="secno">2. </span>Conformance</a></li><li class="tocline"><a href="#terminology" class="tocxref"><span class="secno">3. </span>Terminology</a></li><li class="tocline"><a href="#security-and-privacy-considerations" class="tocxref"><span class="secno">4. </span>Security and privacy considerations</a></li><li class="tocline"><a href="#the-navigator-interface" class="tocxref"><span class="secno">5. </span>The <span class="formerLink"><code>Navigator</code></span> interface</a></li><li class="tocline"><a href="#the-batterymanager-interface" class="tocxref"><span class="secno">6. </span>The <span class="formerLink"><code>BateryManager</code></span> interface</a><ul class="toc"><li class="tocline"><a href="#multiple-batteries" class="tocxref"><span class="secno">6.1 </span>Multiple batteries</a></li><li class="tocline"><a href="#event-handlers" class="tocxref"><span class="secno">6.2 </span>Event handlers</a></li></ul></li><li class="tocline"><a href="#examples" class="tocxref"><span class="secno">7. </span>Examples</a></li><li class="tocline"><a href="#acknowledgements" class="tocxref"><span class="secno">A. </span>Acknowledgements</a></li><li class="tocline"><a href="#references" class="tocxref"><span class="secno">B. </span>References</a><ul class="toc"><li class="tocline"><a href="#normative-references" class="tocxref"><span class="secno">B.1 </span>Normative references</a></li></ul></li></ul></section>
-
-    
-
-    <section class="informative" id="introduction" typeof="bibo:Chapter" resource="#introduction" property="bibo:hasPart">
-      <!--OddPage--><h2 id="h-introduction" resource="#h-introduction"><span property="xhv:role" resource="xhv:heading"><span class="secno">1. </span>Introduction</span></h2><p><em>This section is non-normative.</em></p>
-      <p>
-        The Battery Status API specification defines a means for web
-        developers to programmatically determine the battery status of the
-        hosting device. Without knowing the battery status of a device, a web
-        developer must design the web application with an assumption of
-        sufficient battery level for the task at hand. This means the battery
-        of a device may exhaust faster than desired because web developers are
-        unable to make decisions based on the battery status. Given knowledge
-        of the battery status, web developers are able to craft web content and
-        applications which are power-efficient, thereby leading to improved
-        user experience. Authors should be aware, however, that a naïve
-        implementation of this API can negatively affect the battery life.
-     </p>
-     <p>
-        The Battery Status API can be used to defer or scale back work when
-        the device is not charging in or is low on battery. An archetype of an
-        advanced web application, a web-based email client, may check the
-        server for new email every few seconds if the device is charging,
-        but do so less frequently if the device is not charging or is low on
-        battery. Another example is a web-based word processor which could
-        monitor the battery level and save changes before the battery runs
-        out to prevent data loss.
-      </p>
-    </section>
-
-    <section id="conformance" typeof="bibo:Chapter" resource="#conformance" property="bibo:hasPart"><!--OddPage--><h2 id="h-conformance" resource="#h-conformance"><span property="xhv:role" resource="xhv:heading"><span class="secno">2. </span>Conformance</span></h2>
-<p>
-  As well as sections marked as non-normative, all authoring guidelines, diagrams, examples,
-  and notes in this specification are non-normative. Everything else in this specification is
-  normative.
-</p>
-<p id="respecRFC2119">The key words <em class="rfc2119" title="MAY">MAY</em>, <em class="rfc2119" title="MUST">MUST</em>, <em class="rfc2119" title="MUST NOT">MUST NOT</em>, and <em class="rfc2119" title="SHOULD">SHOULD</em> are 
-  to be interpreted as described in [<cite><a class="bibref" href="#bib-RFC2119">RFC2119</a></cite>].
-</p>
-
-      <p>
-        This specification defines conformance criteria that apply to a single
-        product: the <dfn data-dfn-type="dfn" id="dfn-user-agent">user agent</dfn> that implements the
-        interfaces that it contains.
-      </p>
-      <p>
-        Implementations that use ECMAScript to implement the APIs defined in
-        this specification must implement them in a manner consistent with the
-        ECMAScript Bindings defined in the Web IDL specification [<cite><a class="bibref" href="#bib-WEBIDL">WEBIDL</a></cite>],
-        as this specification uses that specification and terminology.
-      </p>
-    </section>
-    <section id="terminology" typeof="bibo:Chapter" resource="#terminology" property="bibo:hasPart">
-      <!--OddPage--><h2 id="h-terminology" resource="#h-terminology"><span property="xhv:role" resource="xhv:heading"><span class="secno">3. </span>Terminology</span></h2>
-      <p>
-        The following concepts, terms and interfaces are defined in [<cite><a class="bibref" href="#bib-HTML5">HTML5</a></cite>]:
-      </p>
-      <ul>
-        <li><code><a href="http://www.w3.org/html/wg/drafts/html/master/webappapis.html#navigator">
-        Navigator</a></code></li>
-        <li><code><a href="http://dev.w3.org/html5/spec/webappapis.html#eventhandler">
-        EventHandler</a></code></li>
-        <li><dfn data-dfn-type="dfn" id="dfn-queue-a-task"><a href="http://dev.w3.org/html5/spec/webappapis.html#queue-a-task">
-        queue a task</a></dfn></li>
-        <li><dfn data-dfn-type="dfn" id="dfn-fires-a-simple-event"><a href="http://dev.w3.org/html5/spec/webappapis.html#fire-a-simple-event">
-        fires a simple event</a></dfn></li>
-        <li><dfn data-dfn-type="dfn" id="dfn-event-handlers"><a href="http://dev.w3.org/html5/spec/webappapis.html#event-handlers">
-        event handlers</a></dfn></li>
-        <li><dfn data-dfn-type="dfn" id="dfn-event-handler-event-types"><a href="http://dev.w3.org/html5/spec/webappapis.html#event-handler-event-type">
-        event handler event types</a></dfn></li>
-        <li><dfn data-dfn-type="dfn" id="dfn-browsing-context"><a href="http://dev.w3.org/html5/spec/browsers.html#browsing-context">
-        browsing context</a></dfn></li>
-      </ul>
-      <p>
-        <a href="http://people.mozilla.org/~jorendorff/es6-draft.html#sec-promise-objects">
-        <dfn data-dfn-type="dfn" id="dfn-promise">Promise</dfn></a> objects are defined in [<cite><a class="bibref" href="#bib-ECMASCRIPT">ECMASCRIPT</a></cite>].
-      </p>
-    </section>
-    <section class="informative" id="security-and-privacy-considerations" typeof="bibo:Chapter" resource="#security-and-privacy-considerations" property="bibo:hasPart">
-      <!--OddPage--><h2 id="h-security-and-privacy-considerations" resource="#h-security-and-privacy-considerations"><span property="xhv:role" resource="xhv:heading"><span class="secno">4. </span>Security and privacy considerations</span></h2><p><em>This section is non-normative.</em></p>
-      <p>
-        The API defined in this specification is used to determine the battery
-        status of the hosting device.
-      </p>
-      <p>
-        The user agent <em class="rfc2119" title="SHOULD">SHOULD</em> not expose high precision readouts of battery
-        status information as that can introduce a new fingerprinting vector.
-      </p>
-      <p>
-        The user agent <em class="rfc2119" title="MAY">MAY</em> ask the user for battery status information access, or
-        alternatively, enforce the user permission requirement in its private
-        browsing modes.
-      </p>
-      <p>
-        The user agent <em class="rfc2119" title="SHOULD">SHOULD</em> inform the user of the API use by scripts in an
-        unobtrusive manner to aid transparency and to allow the user to revoke
-        the API access.
-      </p>
-      <p>
-        The user agent <em class="rfc2119" title="MAY">MAY</em> obfuscate the exposed value in a way that authors
-        cannot directly know if a hosting device has no battery, is charging or
-        is exposing fake values.
-      </p>
-    </section>
-    <section id="the-navigator-interface" typeof="bibo:Chapter" resource="#the-navigator-interface" property="bibo:hasPart">
-      <!--OddPage--><h2 id="h-the-navigator-interface" resource="#h-the-navigator-interface"><span property="xhv:role" resource="xhv:heading"><span class="secno">5. </span>The <a href="#idl-def-Navigator" class="idlType"><code>Navigator</code></a> interface</span></h2>
-      <pre class="idl"><span class="idlInterface" id="idl-def-Navigator">partial interface <span class="idlInterfaceID">Navigator</span> {
-<span class="idlMethod">    <span class="idlMethType">Promise&lt;<a href="#idl-def-BatteryManager" class="idlType"><code>BatteryManager</code></a>&gt;</span> <span class="idlMethName"><a href="#widl-Navigator-getBattery-Promise-BatteryManager">getBattery</a></span> ();</span>
-};</span></pre>
-      <p>
-        For each <a href="#dfn-browsing-context" class="internalDFN" data-link-type="dfn">browsing context</a>, there is a <dfn data-dfn-type="dfn" id="dfn-battery-promise">battery promise</dfn>,
-        which is initially set to <code>null</code>. It is a <a href="#dfn-promise" class="internalDFN" data-link-type="dfn">Promise</a>
-        object which holds a <a href="#idl-def-BatteryManager" class="idlType"><code>BatteryManager</code></a>.
-      </p>
-      <p>
-        The <code id="widl-Navigator-getBattery-Promise-BatteryManager">getBattery()</code>
-        method, when invoked, <em class="rfc2119" title="MUST">MUST</em> run the following steps:
-      </p>
-      <ul>
-        <li>
-          If <a href="#dfn-battery-promise" class="internalDFN" data-link-type="dfn">battery promise</a> is not <code>null</code>, return <a href="#dfn-battery-promise" class="internalDFN" data-link-type="dfn">battery
-          promise</a> and abort these steps.
-        </li>
-        <li>
-          Otherwise, set <a href="#dfn-battery-promise" class="internalDFN" data-link-type="dfn">battery promise</a> to a newly created
-          <a href="#dfn-promise" class="internalDFN" data-link-type="dfn">Promise</a>.
-        </li>
-        <li>
-          Return <a href="#dfn-battery-promise" class="internalDFN" data-link-type="dfn">battery promise</a> and continue asynchronously.
-        </li>
-        <li>
-          <a href="#dfn-create-a-new-batterymanager-object" class="internalDFN" data-link-type="dfn">Create a new <code>BatteryManager</code> object</a>,
-          and let <var>battery</var> be that object.
-        </li>
-        <li>
-          <dfn data-dfn-type="dfn" id="dfn-resolve">Resolve</dfn> <a href="#dfn-battery-promise" class="internalDFN" data-link-type="dfn">battery promise</a> with <var>battery</var>.
-        </li>
-      </ul>
-      <p>
-        The <a href="#dfn-user-agent" class="internalDFN" data-link-type="dfn">user agent</a> <em class="rfc2119" title="MUST NOT">MUST NOT</em> reject the <a href="#dfn-battery-promise" class="internalDFN" data-link-type="dfn">battery promise</a>.
-      </p>
-    </section>
-
-    <section id="the-batterymanager-interface" typeof="bibo:Chapter" resource="#the-batterymanager-interface" property="bibo:hasPart">
-      <!--OddPage--><h2 id="h-the-batterymanager-interface" resource="#h-the-batterymanager-interface"><span property="xhv:role" resource="xhv:heading"><span class="secno">6. </span>The <a href="#idl-def-BatteryManager" class="idlType"><code>BatteryManager</code></a> interface</span></h2>
-      <p>
-        The <a href="#idl-def-BatteryManager" class="idlType"><code>BatteryManager</code></a> interface represents the <dfn data-dfn-type="dfn" id="dfn-current-battery-status-information">current battery
-        status information</dfn> of the hosting device. The <code>charging</code>
-        attribute represents the charging state of the system's battery.
-        The <code>chargingTime</code> attribute represents the time remaining
-        in seconds until the system's battery is fully charged. The
-        <code>dischargingTime</code> attribute represents the time remaining in
-        seconds until the system's battery is completely discharged and the
-        system is about to be suspended, and the <code>level</code> attribute
-        represents the level of the system's battery.
-      </p>
-      <pre class="idl"><span class="idlInterface" id="idl-def-BatteryManager">interface <span class="idlInterfaceID">BatteryManager</span> : <span class="idlSuperclass">EventTarget</span> {
-<span class="idlAttribute">    readonly    attribute <span class="idlAttrType">boolean</span>             <span class="idlAttrName"><a href="#widl-BatteryManager-charging">charging</a></span>;</span>
-<span class="idlAttribute">    readonly    attribute <span class="idlAttrType">unrestricted double</span> <span class="idlAttrName"><a href="#widl-BatteryManager-chargingTime">chargingTime</a></span>;</span>
-<span class="idlAttribute">    readonly    attribute <span class="idlAttrType">unrestricted double</span> <span class="idlAttrName"><a href="#widl-BatteryManager-dischargingTime">dischargingTime</a></span>;</span>
-<span class="idlAttribute">    readonly    attribute <span class="idlAttrType">double</span>              <span class="idlAttrName"><a href="#widl-BatteryManager-level">level</a></span>;</span>
-<span class="idlAttribute">                attribute <span class="idlAttrType">EventHandler</span>        <span class="idlAttrName"><a href="#widl-BatteryManager-onchargingchange">onchargingchange</a></span>;</span>
-<span class="idlAttribute">                attribute <span class="idlAttrType">EventHandler</span>        <span class="idlAttrName"><a href="#widl-BatteryManager-onchargingtimechange">onchargingtimechange</a></span>;</span>
-<span class="idlAttribute">                attribute <span class="idlAttrType">EventHandler</span>        <span class="idlAttrName"><a href="#widl-BatteryManager-ondischargingtimechange">ondischargingtimechange</a></span>;</span>
-<span class="idlAttribute">                attribute <span class="idlAttrType">EventHandler</span>        <span class="idlAttrName"><a href="#widl-BatteryManager-onlevelchange">onlevelchange</a></span>;</span>
-};</span></pre>
-      <p>
-        When the <a href="#dfn-user-agent" class="internalDFN" data-link-type="dfn">user agent</a> is to <dfn data-dfn-type="dfn" id="dfn-create-a-new-batterymanager-object">create a new
-        <code>BatteryManager</code> object</dfn>, it <em class="rfc2119" title="MUST">MUST</em> instantiate a new
-        <a href="#idl-def-BatteryManager" class="idlType"><code>BatteryManager</code></a> object and set its attributes' values to those
-        that represent the <a href="#dfn-current-battery-status-information" class="internalDFN" data-link-type="dfn">current battery status information</a>, unless
-        the <a href="#dfn-user-agent" class="internalDFN" data-link-type="dfn">user agent</a> is <a href="#dfn-unable-to-report-the-battery-status-information" class="internalDFN" data-link-type="dfn">unable to report the battery status
-        information</a>, in which case the values <em class="rfc2119" title="MUST">MUST</em> be set to <dfn data-dfn-type="dfn" id="dfn-default-values">default
-        values</dfn> as follows:
-        <code>charging</code> <em class="rfc2119" title="MUST">MUST</em> be set to true,
-        <code>chargingTime</code> <em class="rfc2119" title="MUST">MUST</em> be set to 0,
-        <code>dischargingTime</code> <em class="rfc2119" title="MUST">MUST</em> be set to positive Infinity, and
-        <code>level</code> <em class="rfc2119" title="MUST">MUST</em> be set to 1.0.
-      </p>
-      <p>
-        The <a href="#dfn-user-agent" class="internalDFN" data-link-type="dfn">user agent</a> is said to be <dfn data-dfn-type="dfn" id="dfn-unable-to-report-the-battery-status-information">unable to report the
-        battery status information</dfn>, if it is not able to report the
-        values for any of the attributes, for example, due to a user or system
-        preference, setting, or limitation.
-      </p>
-      <div class="note"><div class="note-title" aria-level="3" role="heading" id="h-note1"><span>Note</span></div><p class="">
-        Implementations <a href="#dfn-unable-to-report-the-battery-status-information" class="internalDFN" data-link-type="dfn">unable to report the battery status information</a>
-        emulate a fully charged and plugged in battery to reduce the potential
-        for fingerprinting and prevent applications from degrading performance,
-        if the battery status information is not made available, for example.
-      </p></div>
-      <p>
-        The <code id="widl-BatteryManager-charging">charging</code>
-        attribute <em class="rfc2119" title="MUST">MUST</em> be set to false if the battery
-        is discharging, and set to true, if the battery is charging, the
-        implementation is unable to report the state, or there is no battery
-        attached to the system, or otherwise. When the battery charging state
-        is updated, the <a href="#dfn-user-agent" class="internalDFN" data-link-type="dfn">user agent</a> <em class="rfc2119" title="MUST">MUST</em> <a href="#dfn-queue-a-task" class="internalDFN" data-link-type="dfn">queue a task</a> which sets
-        the <code>charging</code> attribute's value and <a href="#dfn-fires-a-simple-event" class="internalDFN" data-link-type="dfn">fires a simple
-        event</a> named <code><a href="#dfn-chargingchange" class="internalDFN" data-link-type="dfn"><code>chargingchange</code></a></code> at the
-        <a href="#idl-def-BatteryManager" class="idlType"><code>BatteryManager</code></a> object.
-      </p>
-      <p>
-        The <code id="widl-BatteryManager-chargingTime">chargingTime</code>
-        attribute <em class="rfc2119" title="MUST">MUST</em> be set to 0, if the
-        battery is full or there is no battery attached to the system, and to
-        the value positive Infinity if the battery is discharging, the
-        implementation is unable to report the remaining charging time, or
-        otherwise. When the battery charging time is updated, the <a href="#dfn-user-agent" class="internalDFN" data-link-type="dfn">user
-        agent</a> <em class="rfc2119" title="MUST">MUST</em> <a href="#dfn-queue-a-task" class="internalDFN" data-link-type="dfn">queue a task</a> which sets the
-        <code>chargingTime</code> attribute's value and <a href="#dfn-fires-a-simple-event" class="internalDFN" data-link-type="dfn">fires a simple
-        event</a> named <code><a href="#dfn-chargingtimechange" class="internalDFN" data-link-type="dfn"><code>chargingtimechange</code></a></code> at the
-        <a href="#idl-def-BatteryManager" class="idlType"><code>BatteryManager</code></a> object.
-      </p>
-      <p>
-        The <code id="widl-BatteryManager-dischargingTime">dischargingTime</code>
-        attribute <em class="rfc2119" title="MUST">MUST</em> be set to the value
-        positive Infinity, if the battery is charging, the implementation is
-        unable to report the remaining discharging time, there is no battery
-        attached to the system, or otherwise. When the battery discharging time
-        is updated, the <a href="#dfn-user-agent" class="internalDFN" data-link-type="dfn">user agent</a> <em class="rfc2119" title="MUST">MUST</em> <a href="#dfn-queue-a-task" class="internalDFN" data-link-type="dfn">queue a task</a> which sets
-        the <code>dischargingTime</code> attribute's value and <a href="#dfn-fires-a-simple-event" class="internalDFN" data-link-type="dfn">fires a
-        simple event </a> named <code><a href="#dfn-dischargingtimechange" class="internalDFN" data-link-type="dfn"><code>dischargingtimechange</code></a></code> at the
-        <a href="#idl-def-BatteryManager" class="idlType"><code>BatteryManager</code></a> object.
-      </p>
-      <p>
-        The <code id="widl-BatteryManager-level">level</code>
-        attribute <em class="rfc2119" title="MUST">MUST</em> be set to 0 if the system's
-        battery is depleted and the system is about to be suspended, and to
-        1.0 if the battery is full, the implementation is unable to report the
-        battery's level, or there is no battery attached to the system. When
-        the battery level is updated, the <a href="#dfn-user-agent" class="internalDFN" data-link-type="dfn">user agent</a> <em class="rfc2119" title="MUST">MUST</em> <a href="#dfn-queue-a-task" class="internalDFN" data-link-type="dfn">queue a
-        task</a> which sets the <code>level</code> attribute's value and
-        <a href="#dfn-fires-a-simple-event" class="internalDFN" data-link-type="dfn">fires a simple event</a> named <code><a href="#dfn-levelchange" class="internalDFN" data-link-type="dfn"><code>levelchange</code></a></code> at
-        the <a href="#idl-def-BatteryManager" class="idlType"><code>BatteryManager</code></a> object.
-      </p>
-      <div class="note"><div class="note-title" aria-level="3" role="heading" id="h-note2"><span>Note</span></div><p class="">
-        The definition of how often the <code><a href="#dfn-chargingtimechange" class="internalDFN" data-link-type="dfn"><code>chargingtimechange</code></a></code>,
-        <code><a href="#dfn-dischargingtimechange" class="internalDFN" data-link-type="dfn"><code>dischargingtimechange</code></a></code>, and <code><a href="#dfn-levelchange" class="internalDFN" data-link-type="dfn"><code>levelchange</code></a>
-        </code> events are fired is left to the implementation.
-      </p></div>
-      <section id="multiple-batteries" typeof="bibo:Chapter" resource="#multiple-batteries" property="bibo:hasPart">
-        <h3 id="h-multiple-batteries" resource="#h-multiple-batteries"><span property="xhv:role" resource="xhv:heading"><span class="secno">6.1 </span>Multiple batteries</span></h3>
-        <p>
-          If a hosting device contains more than one battery,
-          <a href="#idl-def-BatteryManager" class="idlType"><code>BatteryManager</code></a> <em class="rfc2119" title="SHOULD">SHOULD</em> expose an unified view of the batteries.
-        </p>
-        <p>
-          The <code>charging</code> attribute <em class="rfc2119" title="MUST">MUST</em> be set to true if at least
-          one battery's <code>charging</code> state as described above is true.
-          Otherwise, it <em class="rfc2119" title="MUST">MUST</em> be set to false.
-        </p>
-        <p>
-          The <code>chargingTime</code> attribute can be set to the maximum
-          charging time of the individual batteries if charging in parallel,
-          and to the sum of the individual charging times if charging serially.
-        </p>
-        <p>
-          The <code>dischargingTime</code> attribute can be set to the maximum
-          discharging time of the individual batteries if discharging in
-          parallel, and to the sum of individual discharging times if
-          discharging serially.
-        </p>
-        <p>
-          The <code>level</code> attribute can be set to the average of the
-          levels of batteries of same capacity, or the weighted average of the
-          battery level attributes for batteries of different capacities.
-        </p>
-      </section>
-      <section id="event-handlers" typeof="bibo:Chapter" resource="#event-handlers" property="bibo:hasPart">
-        <h3 id="h-event-handlers" resource="#h-event-handlers"><span property="xhv:role" resource="xhv:heading"><span class="secno">6.2 </span>Event handlers</span></h3>
-        <p>
-          The following are the <a href="#dfn-event-handlers" class="internalDFN" data-link-type="dfn">event handlers</a> (and their corresponding
-          <a href="#dfn-event-handler-event-types" class="internalDFN" data-link-type="dfn">event handler event types</a>) that <em class="rfc2119" title="MUST">MUST</em> be supported as
-          attributes by the <a href="#idl-def-BatteryManager" class="idlType"><code>BatteryManager</code></a> object:
-        </p>
-        <table class="simple">
-          <thead>
-            <tr>
-              <th>event handler</th>
-              <th>event handler event type</th>
-            </tr>
-          </thead>
-          <tbody>
-            <tr>
-              <td>
-                <strong><code id="widl-BatteryManager-onchargingchange">
-                  onchargingchange
-                </code></strong>
-              </td>
-              <td>
-                <code><dfn data-dfn-type="dfn" id="dfn-chargingchange">
-                  chargingchange
-                </dfn></code>
-              </td>
-            </tr>
-            <tr>
-              <td>
-                <strong><code id="widl-BatteryManager-onchargingtimechange">
-                  onchargingtimechange
-                </code></strong>
-              </td>
-              <td>
-                <code><dfn data-dfn-type="dfn" id="dfn-chargingtimechange">
-                  chargingtimechange
-                </dfn></code>
-              </td>
-            </tr>
-            <tr>
-              <td>
-                <strong><code id="widl-BatteryManager-ondischargingtimechange">
-                  ondischargingtimechange
-                </code></strong>
-              </td>
-              <td>
-                <code><dfn data-dfn-type="dfn" id="dfn-dischargingtimechange">
-                  dischargingtimechange
-                </dfn></code>
-              </td>
-            </tr>
-            <tr>
-              <td>
-                <strong><code id="widl-BatteryManager-onlevelchange">
-                  onlevelchange
-                </code></strong>
-              </td>
-              <td>
-                <code><dfn data-dfn-type="dfn" id="dfn-levelchange">
-                  levelchange
-                </dfn></code>
-              </td>
-            </tr>
-          </tbody>
-        </table>
-      </section>
-    </section>
-
-    <section class="informative" id="examples" typeof="bibo:Chapter" resource="#examples" property="bibo:hasPart">
-      <!--OddPage--><h2 id="h-examples" resource="#h-examples"><span property="xhv:role" resource="xhv:heading"><span class="secno">7. </span>Examples</span></h2><p><em>This section is non-normative.</em></p>
-      <p>
-        This trivial example writes the battery level to the console each time
-        the level changes:
-      </p>
-      <div class="example"><div class="example-title"><span>Example 1</span></div><pre class="example highlight prettyprint prettyprinted"><span class="com">// We get the initial value when the promise resolves ...</span><span class="pln">
-navigator</span><span class="pun">.</span><span class="pln">getBattery</span><span class="pun">().</span><span class="kwd">then</span><span class="pun">(</span><span class="kwd">function</span><span class="pun">(</span><span class="pln">battery</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
-  console</span><span class="pun">.</span><span class="pln">log</span><span class="pun">(</span><span class="pln">battery</span><span class="pun">.</span><span class="pln">level</span><span class="pun">);</span><span class="pln">
-  </span><span class="com">// ... and any subsequent updates.</span><span class="pln">
-  battery</span><span class="pun">.</span><span class="pln">onlevelchange </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">function</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
-    console</span><span class="pun">.</span><span class="pln">log</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">level</span><span class="pun">);</span><span class="pln">
-  </span><span class="pun">};</span><span class="pln">
-</span><span class="pun">});</span></pre></div>
-      <p>
-        Alternatively, the same using the <code>addEventListener()</code>
-        method:
-      </p>
-      <div class="example"><div class="example-title"><span>Example 2</span></div><pre class="example highlight prettyprint prettyprinted"><span class="pln">navigator</span><span class="pun">.</span><span class="pln">getBattery</span><span class="pun">().</span><span class="kwd">then</span><span class="pun">(</span><span class="kwd">function</span><span class="pun">(</span><span class="pln">battery</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
-  console</span><span class="pun">.</span><span class="pln">log</span><span class="pun">(</span><span class="pln">battery</span><span class="pun">.</span><span class="pln">level</span><span class="pun">);</span><span class="pln">
-  battery</span><span class="pun">.</span><span class="pln">addEventListener</span><span class="pun">(</span><span class="str">'levelchange'</span><span class="pun">,</span><span class="pln"> </span><span class="kwd">function</span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
-    console</span><span class="pun">.</span><span class="pln">log</span><span class="pun">(</span><span class="kwd">this</span><span class="pun">.</span><span class="pln">level</span><span class="pun">);</span><span class="pln">
-  </span><span class="pun">});</span><span class="pln">
-</span><span class="pun">});</span></pre></div>
-      <p>
-        The following example updates the indicators to show the charging
-        state, level and time remaining in minutes:
-      </p>
-      <div class="example"><div class="example-title"><span>Example 3</span></div><pre class="example highlight prettyprint prettyprinted"><span class="dec">&lt;!DOCTYPE html&gt;</span><span class="pln">
-</span><span class="tag">&lt;html&gt;</span><span class="pln">
-</span><span class="tag">&lt;head&gt;</span><span class="pln">
-  </span><span class="tag">&lt;title&gt;</span><span class="pln">Battery Status API Example</span><span class="tag">&lt;/title&gt;</span><span class="pln">
-  </span><span class="tag">&lt;script&gt;</span><span class="pln">
-    window</span><span class="pun">.</span><span class="pln">onload </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">function</span><span class="pln"> </span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
-      </span><span class="kwd">function</span><span class="pln"> updateBatteryStatus</span><span class="pun">(</span><span class="pln">battery</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
-        document</span><span class="pun">.</span><span class="pln">querySelector</span><span class="pun">(</span><span class="str">'#charging'</span><span class="pun">).</span><span class="pln">textContent </span><span class="pun">=</span><span class="pln"> battery</span><span class="pun">.</span><span class="pln">charging </span><span class="pun">?</span><span class="pln"> </span><span class="str">'charging'</span><span class="pln"> </span><span class="pun">:</span><span class="pln"> </span><span class="str">'not charging'</span><span class="pun">;</span><span class="pln">
-        document</span><span class="pun">.</span><span class="pln">querySelector</span><span class="pun">(</span><span class="str">'#level'</span><span class="pun">).</span><span class="pln">textContent </span><span class="pun">=</span><span class="pln"> battery</span><span class="pun">.</span><span class="pln">level</span><span class="pun">;</span><span class="pln">
-        document</span><span class="pun">.</span><span class="pln">querySelector</span><span class="pun">(</span><span class="str">'#dischargingTime'</span><span class="pun">).</span><span class="pln">textContent </span><span class="pun">=</span><span class="pln"> battery</span><span class="pun">.</span><span class="pln">dischargingTime </span><span class="pun">/</span><span class="pln"> </span><span class="lit">60</span><span class="pun">;</span><span class="pln">
-      </span><span class="pun">}</span><span class="pln">
-
-      navigator</span><span class="pun">.</span><span class="pln">getBattery</span><span class="pun">().</span><span class="pln">then</span><span class="pun">(</span><span class="kwd">function</span><span class="pun">(</span><span class="pln">battery</span><span class="pun">)</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
-        </span><span class="com">// Update the battery status initially when the promise resolves ...</span><span class="pln">
-        updateBatteryStatus</span><span class="pun">(</span><span class="pln">battery</span><span class="pun">);</span><span class="pln">
-
-        </span><span class="com">// .. and for any subsequent updates.</span><span class="pln">
-        battery</span><span class="pun">.</span><span class="pln">onchargingchange </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">function</span><span class="pln"> </span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
-          updateBatteryStatus</span><span class="pun">(</span><span class="pln">battery</span><span class="pun">);</span><span class="pln">
-        </span><span class="pun">};</span><span class="pln">
-
-        battery</span><span class="pun">.</span><span class="pln">onlevelchange </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">function</span><span class="pln"> </span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
-          updateBatteryStatus</span><span class="pun">(</span><span class="pln">battery</span><span class="pun">);</span><span class="pln">
-        </span><span class="pun">};</span><span class="pln">
-
-        battery</span><span class="pun">.</span><span class="pln">ondischargingtimechange </span><span class="pun">=</span><span class="pln"> </span><span class="kwd">function</span><span class="pln"> </span><span class="pun">()</span><span class="pln"> </span><span class="pun">{</span><span class="pln">
-          updateBatteryStatus</span><span class="pun">(</span><span class="pln">battery</span><span class="pun">);</span><span class="pln">
-        </span><span class="pun">};</span><span class="pln">
-      </span><span class="pun">});</span><span class="pln">
-    </span><span class="pun">};</span><span class="pln">
-  </span><span class="tag">&lt;/script&gt;</span><span class="pln">
-</span><span class="tag">&lt;/head&gt;</span><span class="pln">
-</span><span class="tag">&lt;body&gt;</span><span class="pln">
-  </span><span class="tag">&lt;div</span><span class="pln"> </span><span class="atn">id</span><span class="pun">=</span><span class="atv">"charging"</span><span class="tag">&gt;</span><span class="pln">(charging state unknown)</span><span class="tag">&lt;/div&gt;</span><span class="pln">
-  </span><span class="tag">&lt;div</span><span class="pln"> </span><span class="atn">id</span><span class="pun">=</span><span class="atv">"level"</span><span class="tag">&gt;</span><span class="pln">(battery level unknown)</span><span class="tag">&lt;/div&gt;</span><span class="pln">
-  </span><span class="tag">&lt;div</span><span class="pln"> </span><span class="atn">id</span><span class="pun">=</span><span class="atv">"dischargingTime"</span><span class="tag">&gt;</span><span class="pln">(discharging time unknown)</span><span class="tag">&lt;/div&gt;</span><span class="pln">
-</span><span class="tag">&lt;/body&gt;</span><span class="pln">
-</span><span class="tag">&lt;/html&gt;</span></pre></div>
-    </section>
-    <section class="appendix" id="acknowledgements" typeof="bibo:Chapter" resource="#acknowledgements" property="bibo:hasPart">
-      <!--OddPage--><h2 id="h-acknowledgements" resource="#h-acknowledgements"><span property="xhv:role" resource="xhv:heading"><span class="secno">A. </span>Acknowledgements</span></h2>
-      <p>
-        The group is deeply indebted to Mounir Lamouri, Jonas Sicking, and
-        the Mozilla WebAPI team in general for their invaluable feedback
-        based on prototype implementations. Many thanks to the people behind
-        the System Information API and Device Orientation Event specification
-        for the initial inspiration. Also thanks to the nice folks bringing us
-        the Page Visibility specification, which motivated the editor of this
-        specification to write the introduction chapter discussing some
-        real-world high value use cases that apply equally to this
-        specification. Special thanks to all the participants of the Device
-        APIs Working Group and others who have sent in substantial feedback
-        and comments, and made the Web a better place for everyone by
-        doing so. Finally, thanks to Lukasz Olejnik, Gunes Acar, Claude
-        Castelluccia, and Claudia Diaz for the privacy analysis of the API.
-      </p>
-    </section>
-  
-
-<section id="references" class="appendix" typeof="bibo:Chapter" resource="#references" property="bibo:hasPart"><!--OddPage--><h2 id="h-references" resource="#h-references"><span property="xhv:role" resource="xhv:heading"><span class="secno">B. </span>References</span></h2><section id="normative-references" typeof="bibo:Chapter" resource="#normative-references" property="bibo:hasPart"><h3 id="h-normative-references" resource="#h-normative-references"><span property="xhv:role" resource="xhv:heading"><span class="secno">B.1 </span>Normative references</span></h3><dl class="bibliography" resource=""><dt id="bib-ECMASCRIPT">[ECMASCRIPT]</dt><dd>Allen Wirfs-Brock. <a href="http://www.ecma-international.org/ecma-262/6.0/" property="dc:requires"><cite>ECMA-262 6th Edition, The ECMAScript 2015 Language Specification</cite></a>. June 2015. Standard. URL: <a href="http://www.ecma-international.org/ecma-262/6.0/" property="dc:requires">http://www.ecma-international.org/ecma-262/6.0/</a>
-</dd><dt id="bib-HTML5">[HTML5]</dt><dd>Ian Hickson; Robin Berjon; Steve Faulkner; Travis Leithead; Erika Doyle Navara; Edward O'Connor; Silvia Pfeiffer. <a href="http://www.w3.org/TR/html5/" property="dc:requires"><cite>HTML5</cite></a>. 28 October 2014. W3C Recommendation. URL: <a href="http://www.w3.org/TR/html5/" property="dc:requires">http://www.w3.org/TR/html5/</a>
-</dd><dt id="bib-RFC2119">[RFC2119]</dt><dd>S. Bradner. <a href="https://tools.ietf.org/html/rfc2119" property="dc:requires"><cite>Key words for use in RFCs to Indicate Requirement Levels</cite></a>. March 1997. Best Current Practice. URL: <a href="https://tools.ietf.org/html/rfc2119" property="dc:requires">https://tools.ietf.org/html/rfc2119</a>
-</dd><dt id="bib-WEBIDL">[WEBIDL]</dt><dd>Cameron McCormack; Boris Zbarsky. <a href="http://www.w3.org/TR/WebIDL-1/" property="dc:requires"><cite>WebIDL Level 1</cite></a>. 4 August 2015. W3C Working Draft. URL: <a href="http://www.w3.org/TR/WebIDL-1/" property="dc:requires">http://www.w3.org/TR/WebIDL-1/</a>
-</dd></dl></section></section></body></html>
\ No newline at end of file
+  </head>
+  <body>
+    Moved to <a href="https://w3c.github.io/battery/">
+    https://w3c.github.io/battery/</a>
+  </body>
+</html>
diff -r abe11905e4dc -r 794817a23d8e battery/Overview.src.html
--- a/battery/Overview.src.html	Thu Aug 20 15:50:38 2015 +0300
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,498 +0,0 @@
-<!DOCTYPE html>
-<html>
-  <head>
-    <title>Battery Status API</title>
-    <meta http-equiv="Content-Type" content="text/html;charset=utf-8"/>
-    <script src='https://www.w3.org/Tools/respec/respec-w3c-common' class='remove'></script>
-    <script class="remove">
-      var respecConfig = {
-          specStatus:           "ED",
-          shortName:            "battery-status",
-          // publishDate:          "2014-12-09",
-          previousPublishDate:  "2014-12-09",
-          previousMaturity:     "CR",
-          edDraftURI:           "https://dvcs.w3.org/hg/dap/raw-file/default/battery/Overview.html",
-          // crEnd:                "2015-02-03",
-          editors:  [
-              { name: "Anssi Kostiainen", company: "Intel", companyURL: "http://intel.com/" },
-              { name: "Mounir Lamouri", company: "Google Inc.", companyURL: "http://google.com/", note: "previously Mozilla" }
-          ],
-          inlineCSS:    true,
-          noIDLIn:      true,
-          noLegacyStyle: true,
-          wg:           "Device APIs Working Group",
-          wgURI:        "http://www.w3.org/2009/dap/",
-          wgPublicList: "public-device-apis",
-          wgPatentURI:  "http://www.w3.org/2004/01/pp-impl/43696/status",
-          testSuiteURI: "http://w3c-test.org/battery-status/",
-          implementationReportURI: "http://www.w3.org/2009/dap/wiki/ImplementationStatus",
-          scheme:       "https",
-          processVersion: 2005
-      };
-    </script>
-  </head>
-  <body>
-    <section id="abstract">
-      This specification defines an API that provides information about the
-      battery status of the hosting device.
-    </section>
-
-    <section id="sotd">
-      <p>
-        The functionality described in this specification was initially
-        specified as part of the
-        <a href="http://www.w3.org/TR/system-info-api/">System Information
-        API</a> but has been extracted in order to be more readily available,
-        more straightforward to implement, and in order to produce a
-        specification that could be implemented on its own merits without
-        interference with other, often unrelated, features.
-      </p>
-      <p>
-        No substantial changes have been made since the
-        <a href="http://www.w3.org/TR/2014/WD-battery-status-20140828/">
-        W3C Last Call Working Draft 28 August 2014</a>
-        (<a href="CR2-diff.html">diff</a>).
-      </p>
-      <p>
-        The CR exit criterion is two interoperable deployed implementations of
-        each feature. No features are marked as 'at-risk'.
-      </p>
-    </section>
-
-    <section class="informative">
-      <h2>Introduction</h2>
-      <p>
-        The Battery Status API specification defines a means for web
-        developers to programmatically determine the battery status of the
-        hosting device. Without knowing the battery status of a device, a web
-        developer must design the web application with an assumption of
-        sufficient battery level for the task at hand. This means the battery
-        of a device may exhaust faster than desired because web developers are
-        unable to make decisions based on the battery status. Given knowledge
-        of the battery status, web developers are able to craft web content and
-        applications which are power-efficient, thereby leading to improved
-        user experience. Authors should be aware, however, that a naïve
-        implementation of this API can negatively affect the battery life.
-     </p>
-     <p>
-        The Battery Status API can be used to defer or scale back work when
-        the device is not charging in or is low on battery. An archetype of an
-        advanced web application, a web-based email client, may check the
-        server for new email every few seconds if the device is charging,
-        but do so less frequently if the device is not charging or is low on
-        battery. Another example is a web-based word processor which could
-        monitor the battery level and save changes before the battery runs
-        out to prevent data loss.
-      </p>
-    </section>
-
-    <section id="conformance">
-      <p>
-        This specification defines conformance criteria that apply to a single
-        product: the <dfn>user agent</dfn> that implements the
-        interfaces that it contains.
-      </p>
-      <p>
-        Implementations that use ECMAScript to implement the APIs defined in
-        this specification must implement them in a manner consistent with the
-        ECMAScript Bindings defined in the Web IDL specification [[!WEBIDL]],
-        as this specification uses that specification and terminology.
-      </p>
-    </section>
-    <section>
-      <h2>Terminology</h2>
-      <p>
-        The following concepts, terms and interfaces are defined in [[!HTML5]]:
-      </p>
-      <ul>
-        <li><code><a href="http://www.w3.org/html/wg/drafts/html/master/webappapis.html#navigator">
-        Navigator</a></code></li>
-        <li><code><a href="http://dev.w3.org/html5/spec/webappapis.html#eventhandler">
-        EventHandler</a></code></li>
-        <li><dfn><a href="http://dev.w3.org/html5/spec/webappapis.html#queue-a-task">
-        queue a task</a></dfn></li>
-        <li><dfn><a href="http://dev.w3.org/html5/spec/webappapis.html#fire-a-simple-event">
-        fires a simple event</a></dfn></li>
-        <li><dfn><a href="http://dev.w3.org/html5/spec/webappapis.html#event-handlers">
-        event handlers</a></dfn></li>
-        <li><dfn><a href="http://dev.w3.org/html5/spec/webappapis.html#event-handler-event-type">
-        event handler event types</a></dfn></li>
-        <li><dfn><a href="http://dev.w3.org/html5/spec/browsers.html#browsing-context">
-        browsing context</a></dfn></li>
-      </ul>
-      <p>
-        <a href=
-        'http://people.mozilla.org/~jorendorff/es6-draft.html#sec-promise-objects'>
-        <dfn>Promise</dfn></a> objects are defined in [[!ECMASCRIPT]].
-      </p>
-    </section>
-    <section class="informative">
-      <h2>Security and privacy considerations</h2>
-      <p>
-        The API defined in this specification is used to determine the battery
-        status of the hosting device.
-      </p>
-      <p>
-        The user agent SHOULD not expose high precision readouts of battery
-        status information as that can introduce a new fingerprinting vector.
-      </p>
-      <p>
-        The user agent MAY ask the user for battery status information access, or
-        alternatively, enforce the user permission requirement in its private
-        browsing modes.
-      </p>
-      <p>
-        The user agent SHOULD inform the user of the API use by scripts in an
-        unobtrusive manner to aid transparency and to allow the user to revoke
-        the API access.
-      </p>
-      <p>
-        The user agent MAY obfuscate the exposed value in a way that authors
-        cannot directly know if a hosting device has no battery, is charging or
-        is exposing fake values.
-      </p>
-    </section>
-    <section>
-      <h2>The <a>Navigator</a> interface</h2>
-      <dl title="partial interface Navigator" class="idl">
-        <dt>Promise&lt;BatteryManager&gt; getBattery()</dt>
-        <dd></dd>
-      </dl>
-      <p>
-        For each <a>browsing context</a>, there is a <dfn>battery promise</dfn>,
-        which is initially set to <code>null</code>. It is a <a>Promise</a>
-        object which holds a <a>BatteryManager</a>.
-      </p>
-      <p>
-        The <code id="widl-Navigator-getBattery-Promise-BatteryManager">getBattery()</code>
-        method, when invoked, MUST run the following steps:
-      </p>
-      <ul>
-        <li>
-          If <a>battery promise</a> is not <code>null</code>, return <a>battery
-          promise</a> and abort these steps.
-        </li>
-        <li>
-          Otherwise, set <a>battery promise</a> to a newly created
-          <a>Promise</a>.
-        </li>
-        <li>
-          Return <a>battery promise</a> and continue asynchronously.
-        </li>
-        <li>
-          <a>Create a new <code>BatteryManager</code> object</a>,
-          and let <var>battery</var> be that object.
-        </li>
-        <li>
-          <dfn>Resolve</dfn> <a>battery promise</a> with <var>battery</var>.
-        </li>
-      </ul>
-      <p>
-        The <a>user agent</a> MUST NOT reject the <a>battery promise</a>.
-      </p>
-    </section>
-
-    <section>
-      <h2>The <a>BatteryManager</a> interface</h2>
-      <p>
-        The <a>BatteryManager</a> interface represents the <dfn>current battery
-        status information</dfn> of the hosting device. The <code>charging</code>
-        attribute represents the charging state of the system's battery.
-        The <code>chargingTime</code> attribute represents the time remaining
-        in seconds until the system's battery is fully charged. The
-        <code>dischargingTime</code> attribute represents the time remaining in
-        seconds until the system's battery is completely discharged and the
-        system is about to be suspended, and the <code>level</code> attribute
-        represents the level of the system's battery.
-      </p>
-      <dl title="interface BatteryManager : EventTarget"
-          class="idl">
-        <dt>readonly attribute boolean charging</dt>
-        <dd></dd>
-        <dt>readonly attribute unrestricted double chargingTime</dt>
-        <dd></dd>
-        <dt>readonly attribute unrestricted double dischargingTime</dt>
-        <dd></dd>
-        <dt>readonly attribute double level</dt>
-        <dd></dd>
-        <dt>
-          attribute EventHandler onchargingchange
-        </dt>
-        <dd></dd>
-        <dt>
-          attribute EventHandler onchargingtimechange
-        </dt>
-        <dd></dd>
-        <dt>
-          attribute EventHandler ondischargingtimechange
-        </dt>
-        <dd></dd>
-        <dt>
-          attribute EventHandler onlevelchange
-        </dt>
-        <dd></dd>
-      </dl>
-      <p>
-        When the <a>user agent</a> is to <dfn>create a new
-        <code>BatteryManager</code> object</dfn>, it MUST instantiate a new
-        <a>BatteryManager</a> object and set its attributes' values to those
-        that represent the <a>current battery status information</a>, unless
-        the <a>user agent</a> is <a>unable to report the battery status
-        information</a>, in which case the values MUST be set to <dfn>default
-        values</dfn> as follows:
-        <code>charging</code> MUST be set to true,
-        <code>chargingTime</code> MUST be set to 0,
-        <code>dischargingTime</code> MUST be set to positive Infinity, and
-        <code>level</code> MUST be set to 1.0.
-      </p>
-      <p>
-        The <a>user agent</a> is said to be <dfn>unable to report the
-        battery status information</dfn>, if it is not able to report the
-        values for any of the attributes, for example, due to a user or system
-        preference, setting, or limitation.
-      </p>
-      <p class="note">
-        Implementations <a>unable to report the battery status information</a>
-        emulate a fully charged and plugged in battery to reduce the potential
-        for fingerprinting and prevent applications from degrading performance,
-        if the battery status information is not made available, for example.
-      </p>
-      <p>
-        The <code id="widl-BatteryManager-charging">charging</code>
-        attribute MUST be set to false if the battery
-        is discharging, and set to true, if the battery is charging, the
-        implementation is unable to report the state, or there is no battery
-        attached to the system, or otherwise. When the battery charging state
-        is updated, the <a>user agent</a> MUST <a>queue a task</a> which sets
-        the <code>charging</code> attribute's value and <a>fires a simple
-        event</a> named <code><a>chargingchange</a></code> at the
-        <a>BatteryManager</a> object.
-      </p>
-      <p>
-        The <code id="widl-BatteryManager-chargingTime">chargingTime</code>
-        attribute MUST be set to 0, if the
-        battery is full or there is no battery attached to the system, and to
-        the value positive Infinity if the battery is discharging, the
-        implementation is unable to report the remaining charging time, or
-        otherwise. When the battery charging time is updated, the <a>user
-        agent</a> MUST <a>queue a task</a> which sets the
-        <code>chargingTime</code> attribute's value and <a>fires a simple
-        event</a> named <code><a>chargingtimechange</a></code> at the
-        <a>BatteryManager</a> object.
-      </p>
-      <p>
-        The <code id="widl-BatteryManager-dischargingTime">dischargingTime</code>
-        attribute MUST be set to the value
-        positive Infinity, if the battery is charging, the implementation is
-        unable to report the remaining discharging time, there is no battery
-        attached to the system, or otherwise. When the battery discharging time
-        is updated, the <a>user agent</a> MUST <a>queue a task</a> which sets
-        the <code>dischargingTime</code> attribute's value and <a>fires a
-        simple event </a> named <code><a>dischargingtimechange</a></code> at the
-        <a>BatteryManager</a> object.
-      </p>
-      <p>
-        The <code id="widl-BatteryManager-level">level</code>
-        attribute MUST be set to 0 if the system's
-        battery is depleted and the system is about to be suspended, and to
-        1.0 if the battery is full, the implementation is unable to report the
-        battery's level, or there is no battery attached to the system. When
-        the battery level is updated, the <a>user agent</a> MUST <a>queue a
-        task</a> which sets the <code>level</code> attribute's value and
-        <a>fires a simple event</a> named <code><a>levelchange</a></code> at
-        the <a>BatteryManager</a> object.
-      </p>
-      <p class="note">
-        The definition of how often the <code><a>chargingtimechange</a></code>,
-        <code><a>dischargingtimechange</a></code>, and <code><a>levelchange</a>
-        </code> events are fired is left to the implementation.
-      </p>
-      <section id="multiple-batteries">
-        <h2>Multiple batteries</h2>
-        <p>
-          If a hosting device contains more than one battery,
-          <a>BatteryManager</a> SHOULD expose an unified view of the batteries.
-        </p>
-        <p>
-          The <code>charging</code> attribute MUST be set to true if at least
-          one battery's <code>charging</code> state as described above is true.
-          Otherwise, it MUST be set to false.
-        </p>
-        <p>
-          The <code>chargingTime</code> attribute can be set to the maximum
-          charging time of the individual batteries if charging in parallel,
-          and to the sum of the individual charging times if charging serially.
-        </p>
-        <p>
-          The <code>dischargingTime</code> attribute can be set to the maximum
-          discharging time of the individual batteries if discharging in
-          parallel, and to the sum of individual discharging times if
-          discharging serially.
-        </p>
-        <p>
-          The <code>level</code> attribute can be set to the average of the
-          levels of batteries of same capacity, or the weighted average of the
-          battery level attributes for batteries of different capacities.
-        </p>
-      </section>
-      <section>
-        <h2>Event handlers</h2>
-        <p>
-          The following are the <a>event handlers</a> (and their corresponding
-          <a>event handler event types</a>) that MUST be supported as
-          attributes by the <a>BatteryManager</a> object:
-        </p>
-        <table class="simple">
-          <thead>
-            <tr>
-              <th>event handler</th>
-              <th>event handler event type</th>
-            </tr>
-          </thead>
-          <tbody>
-            <tr>
-              <td>
-                <strong><code id="widl-BatteryManager-onchargingchange">
-                  onchargingchange
-                </code></strong>
-              </td>
-              <td>
-                <code><dfn>
-                  chargingchange
-                </dfn></code>
-              </td>
-            </tr>
-            <tr>
-              <td>
-                <strong><code id="widl-BatteryManager-onchargingtimechange">
-                  onchargingtimechange
-                </code></strong>
-              </td>
-              <td>
-                <code><dfn>
-                  chargingtimechange
-                </dfn></code>
-              </td>
-            </tr>
-            <tr>
-              <td>
-                <strong><code id="widl-BatteryManager-ondischargingtimechange">
-                  ondischargingtimechange
-                </code></strong>
-              </td>
-              <td>
-                <code><dfn>
-                  dischargingtimechange
-                </dfn></code>
-              </td>
-            </tr>
-            <tr>
-              <td>
-                <strong><code id="widl-BatteryManager-onlevelchange">
-                  onlevelchange
-                </code></strong>
-              </td>
-              <td>
-                <code><dfn>
-                  levelchange
-                </dfn></code>
-              </td>
-            </tr>
-          </tbody>
-        </table>
-      </section>
-    </section>
-
-    <section class="informative">
-      <h2>Examples</h2>
-      <p>
-        This trivial example writes the battery level to the console each time
-        the level changes:
-      </p>
-      <pre class="example highlight">
-        // We get the initial value when the promise resolves ...
-        navigator.getBattery().then(function(battery) {
-          console.log(battery.level);
-          // ... and any subsequent updates.
-          battery.onlevelchange = function() {
-            console.log(this.level);
-          };
-        });
-      </pre>
-      <p>
-        Alternatively, the same using the <code>addEventListener()</code>
-        method:
-      </p>
-      <pre class="example highlight">
-        navigator.getBattery().then(function(battery) {
-          console.log(battery.level);
-          battery.addEventListener('levelchange', function() {
-            console.log(this.level);
-          });
-        });
-      </pre>
-      <p>
-        The following example updates the indicators to show the charging
-        state, level and time remaining in minutes:
-      </p>
-      <pre class="example highlight">
-        &lt;!DOCTYPE html&gt;
-        &lt;html&gt;
-        &lt;head&gt;
-          &lt;title&gt;Battery Status API Example&lt;/title&gt;
-          &lt;script&gt;
-            window.onload = function () {
-              function updateBatteryStatus(battery) {
-                document.querySelector('#charging').textContent = battery.charging ? 'charging' : 'not charging';
-                document.querySelector('#level').textContent = battery.level;
-                document.querySelector('#dischargingTime').textContent = battery.dischargingTime / 60;
-              }
-
-              navigator.getBattery().then(function(battery) {
-                // Update the battery status initially when the promise resolves ...
-                updateBatteryStatus(battery);
-
-                // .. and for any subsequent updates.
-                battery.onchargingchange = function () {
-                  updateBatteryStatus(battery);
-                };
-
-                battery.onlevelchange = function () {
-                  updateBatteryStatus(battery);
-                };
-
-                battery.ondischargingtimechange = function () {
-                  updateBatteryStatus(battery);
-                };
-              });
-            };
-          &lt;/script&gt;
-        &lt;/head&gt;
-        &lt;body&gt;
-          &lt;div id="charging"&gt;(charging state unknown)&lt;/div&gt;
-          &lt;div id="level"&gt;(battery level unknown)&lt;/div&gt;
-          &lt;div id="dischargingTime"&gt;(discharging time unknown)&lt;/div&gt;
-        &lt;/body&gt;
-        &lt;/html&gt;
-      </pre>
-    </section>
-    <section class="appendix">
-      <h2>Acknowledgements</h2>
-      <p>
-        The group is deeply indebted to Mounir Lamouri, Jonas Sicking, and
-        the Mozilla WebAPI team in general for their invaluable feedback
-        based on prototype implementations. Many thanks to the people behind
-        the System Information API and Device Orientation Event specification
-        for the initial inspiration. Also thanks to the nice folks bringing us
-        the Page Visibility specification, which motivated the editor of this
-        specification to write the introduction chapter discussing some
-        real-world high value use cases that apply equally to this
-        specification. Special thanks to all the participants of the Device
-        APIs Working Group and others who have sent in substantial feedback
-        and comments, and made the Web a better place for everyone by
-        doing so. Finally, thanks to Lukasz Olejnik, Gunes Acar, Claude
-        Castelluccia, and Claudia Diaz for the privacy analysis of the API.
-      </p>
-    </section>
-  </body>
-</html>

Received on Thursday, 17 March 2016 14:00:53 UTC